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WO2018164449A1 - Ensemble relais de puissance - Google Patents

Ensemble relais de puissance Download PDF

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Publication number
WO2018164449A1
WO2018164449A1 PCT/KR2018/002637 KR2018002637W WO2018164449A1 WO 2018164449 A1 WO2018164449 A1 WO 2018164449A1 KR 2018002637 W KR2018002637 W KR 2018002637W WO 2018164449 A1 WO2018164449 A1 WO 2018164449A1
Authority
WO
WIPO (PCT)
Prior art keywords
plate
support plate
heat dissipation
power relay
relay assembly
Prior art date
Application number
PCT/KR2018/002637
Other languages
English (en)
Korean (ko)
Inventor
원민호
황승재
Original Assignee
주식회사 아모그린텍
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from KR1020180025986A external-priority patent/KR102119594B1/ko
Application filed by 주식회사 아모그린텍 filed Critical 주식회사 아모그린텍
Priority to CN201880011379.2A priority Critical patent/CN110291608B/zh
Priority to US16/486,643 priority patent/US11420572B2/en
Priority to EP18764722.7A priority patent/EP3594984B1/fr
Priority to JP2019546797A priority patent/JP6913967B2/ja
Publication of WO2018164449A1 publication Critical patent/WO2018164449A1/fr

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R16/00—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for
    • B60R16/02—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H45/00—Details of relays
    • H01H45/02—Bases; Casings; Covers
    • H01H45/04—Mounting complete relay or separate parts of relay on a base or inside a case
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H45/00—Details of relays
    • H01H45/12—Ventilating; Cooling; Heating
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H50/00—Details of electromagnetic relays
    • H01H50/02—Bases; Casings; Covers
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H50/00—Details of electromagnetic relays
    • H01H50/12—Ventilating; Cooling; Heating
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H50/00—Details of electromagnetic relays
    • H01H50/16—Magnetic circuit arrangements
    • H01H50/18—Movable parts of magnetic circuits, e.g. armature
    • H01H50/20—Movable parts of magnetic circuits, e.g. armature movable inside coil and substantially lengthwise with respect to axis thereof; movable coaxially with respect to coil
    • H01H50/22—Movable parts of magnetic circuits, e.g. armature movable inside coil and substantially lengthwise with respect to axis thereof; movable coaxially with respect to coil wherein the magnetic circuit is substantially closed
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
    • H02G5/00—Installations of bus-bars

Definitions

  • the present invention relates to a power relay assembly, and more particularly to a power relay assembly that can be used, for example, in an electric vehicle.
  • An electric vehicle is a general term for a car that runs on electricity.
  • electric vehicles are classified into electric vehicles (EVs) driven only by electricity and hybrid electric vehicles (HEVs) using electricity and fossil fuels.
  • EVs electric vehicles
  • HEVs hybrid electric vehicles
  • a power relay assembly is placed between a high voltage battery and a motor. Such a power relay assembly serves to selectively supply power of a high voltage battery.
  • the power relay assembly includes a main relay, a precharge relay, a precharge resistor, and the like, and the above components are electrically connected to each other through a busbar. do.
  • the main relay supplies or disconnects power between the high voltage battery and the motor, and the precharge relay and precharge resistors prevent damage to the device by the initial current.
  • Busbars are low-impedance and high-current conductors that can connect two or more circuits individually or to several equivalence points within a system.
  • the power relay assembly is installed in a trunk or cabin room for connection with a high voltage battery installed in the trunk. Therefore, it is necessary to secure heat dissipation performance and electromagnetic shielding performance of the main relay or precharge relay to prevent performance degradation and damage caused by heat, and to prevent malfunction and damage by electromagnetic waves.
  • the present invention has been made in view of the above, and an object thereof is to provide a power relay assembly capable of simultaneously securing heat radiation performance and electromagnetic shielding function.
  • At least one electric element is mounted on one surface, the support plate comprising a plastic material having heat dissipation and insulation; At least one bus bar electrically connected to the electric element; And an electromagnetic shielding unit for shielding electromagnetic waves generated from the electric element.
  • the electromagnetic shield may be a plate-like metal member embedded in the support plate, the metal member may be electrically connected to the ground via a cable.
  • the electromagnetic shielding portion may be a shielding coating layer having electrical conductivity.
  • the shielding coating layer may be formed on the inner surface of the cover to prevent the external exposure of the busbar.
  • the support plate may include a first plate made of a plastic material having insulation and heat dissipation, and a second plate made of a plastic material having non-insulation and heat dissipation and including a conductive filler. It may include, wherein the electromagnetic shield may be the second plate.
  • the busbar may be embedded in the support plate.
  • the busbar may be disposed such that at least a part of the portion embedded in the support plate is in contact with a support plate portion made of a plastic material having heat dissipation and insulation.
  • the present invention it is possible to prevent the malfunction and damage of the electronic component by the electromagnetic wave by adding the heat dissipation to the support plate to prevent performance degradation due to heat and damage to the components in advance, and shield the electromagnetic wave through the electromagnetic shielding portion.
  • FIG. 1 is a schematic diagram showing a power relay assembly according to an embodiment of the present invention
  • FIG. 2 is a view showing a state in which the electrical elements are removed in Figure 1, showing the arrangement of the busbar,
  • FIG. 3 is a view showing a state in which the first plate, the second plate and the third plate in Figure 2,
  • FIG. 4 is a cross-sectional view taken along the line B-B of FIG.
  • 5 to 7 is a view showing a case in which the electromagnetic shielding portion is provided with a metal member in the power relay assembly according to an embodiment of the present invention, a cross-sectional view showing various forms of the support plate viewed from the same direction as FIG.
  • FIG. 8 conceptually illustrates a case in which the metal member of FIG. 4 is connected to ground
  • FIG. 9 and 10 are views showing another form of the electromagnetic shielding portion in the power relay assembly according to an embodiment of the present invention, the cross-sectional view seen from the same direction as in FIG.
  • FIG. 11 is a cross-sectional view of the cover applicable to the power relay assembly according to the embodiment of the present invention viewed from the same direction as the AA direction of FIG. 1, illustrating an electromagnetic wave shielding portion formed as a shielding coating layer on an inner surface of the cover.
  • FIG. 12 is a cross-sectional view showing a bus bar that can be applied to a power relay assembly according to an embodiment of the present invention, showing a case where a coating layer is formed on a surface thereof;
  • FIG. 13 is a schematic diagram showing a state in which a power relay assembly according to an embodiment of the present invention is mounted on a case of an electric vehicle, and
  • FIG. 14 is a schematic diagram illustrating a state in which a power relay assembly according to an embodiment of the present invention is mounted to a case of an electric vehicle and sealed through one cover.
  • Power relay assembly 100 is to supply power to the drive control unit for controlling the driving voltage by blocking or connecting the high voltage current supplied from the battery, as shown in Figure 1 the support plate 110, at least one electrical element 10, 20, 30, bus bar 120, cover 130, and an electromagnetic shielding portion.
  • the support plate 110 may be in the form of a plate having a predetermined area, and may fix the at least one electric element 10, 20, 30 and the bus bar 120 electrically connecting them.
  • At this time, at least a portion of the support plate 110 may have both heat dissipation and insulation.
  • the support plate 110 may serve to support the electrical elements 10, 20, 30 and the busbars 120 having heat dissipation, and the heat dissipation portion may be formed by the support plate 110. It can release heat generated during operation.
  • the support plate 110 may prevent an electrical short between the bus bar 120 and the electrical devices 10, 20, and 30 having an insulating property.
  • the support plate 110 may be formed of a plastic material. According to an embodiment of the present invention, the support plate 110 may be formed of a plastic material having at least a part of heat dissipation and insulation, and the busbar ( A portion of 120 may be fixed to contact each other with the above-mentioned heat dissipation and insulation.
  • the support plate 110 may be formed of a plastic material having a part of heat dissipation and insulation, but is not limited thereto, and the support plate 110 may be made of a plastic material of heat dissipation and insulation. .
  • the bus bar 120 may electrically connect at least one electric element 10, 20, 30 mounted on one surface of the support plate 110.
  • the busbar 120 may be formed of a conductor having a low impedance and a high current capacity, and serves to distribute power to several points by connecting two or more electric elements individually or by connecting several isometry points. Can be done.
  • Such a bus bar 120 may be provided in the form of a plate-shaped bar having a predetermined length.
  • the bus bar 120 may have a shape in which a part of the entire length is bent one time or a plurality of times so that the bus bar 120 may be easily fastened with the electric elements 10, 20, 30.
  • the overall shape of the bus bar 120 is not limited thereto, and may be appropriately changed according to the arrangement position of the electric elements 10, 20, 30 to be connected to each other.
  • bus bar 120 may be provided in plurality. In this way, at least some of the plurality of busbars 120 may be connected to plus and minus terminals of the battery, plus and minus terminals of the inverter, respectively, and the plurality of electric elements 10, 20, and 30 may be connected to the battery.
  • the high voltage current supplied from the controller can be cut off or connected to the drive control unit.
  • the bus bar 120 may be fixed in a state in which at least a portion of the bus bar 120 is in contact with the support plate 110, and a portion of the bus bar 120 which is in contact with the support plate 110 may be the support plate ( 110 may be a portion having heat dissipation.
  • the power relay assembly 100 when the power relay assembly 100 is operated according to an embodiment of the present invention, heat generated from the electric elements 10, 20, 30 and / or busbars 120 may be transferred to the support plate 110. It may be discharged to the outside through the heat dissipation portion of the support plate 110 through the bus bar 120 in contact. For this reason, the power relay assembly 100 according to the embodiment of the present invention can prevent the performance degradation and the damage of the components due to heat in advance.
  • one side of the bus bar 120 may be fixed to one surface of the support plate 110, but at least a part of the bus bar 120 may be embedded in the support plate 110.
  • the bus bar 120 may include a first portion 121, a second portion 122, and a third portion 123.
  • the first portion 121 may be a portion that is completely embedded in the support plate 110
  • the third portion 123 may be a portion exposed to the outside of the support plate 110
  • the second portion 122 may be a portion fixed through the support plate 110 while connecting the first portion 121 and the third portion 123.
  • the first part 121 of the bus bar 120 has the heat dissipation property and the insulation property. It may be embedded in the support plate 110 to contact the portion made of a plastic material having a. Detailed description thereof will be described later.
  • the bus bar 120 may be formed of a conductor having a low impedance and a high current capacity as described above.
  • the bus bar 120 may be made of a metal material such as copper or aluminum.
  • the bus bar 120 when the bus bar 120 is made of an aluminum material, the bus bar 120 may have a form in which a heat dissipation coating layer (C) is coated on a surface as shown in FIG. 12, and the heat dissipation coating layer (C). It may be the same as the protective coating layer 150 including an insulating heat dissipation filler to be described later. That is, the bus bar 120 made of aluminum may have a lighter weight than the bus bar 120 made of copper. This is because aluminum has a specific gravity smaller than copper due to the characteristics of the material. Accordingly, the power relay assembly using the material of the bus bar 120 as aluminum may have a much lighter weight than the power relay assembly using copper as the material of the bus bar 120.
  • the bus bar 120 when the bus bar 120 is made of aluminum, the bus bar 120 may be formed with a heat dissipation coating layer C including an insulating heat dissipation filler on the surface of the bus bar 120 to compensate for the heat dissipation performance.
  • a heat dissipation coating layer C including an insulating heat dissipation filler on the surface of the bus bar 120 to compensate for the heat dissipation performance.
  • the bar is made of copper, it is possible to realize an equivalent heat dissipation performance while minimizing the increased thickness.
  • the power relay assembly using the material of the bus bar 120 as aluminum may be implemented in a lighter weight than the power relay assembly using copper as the material of the bus bar 120, and the production cost may be reduced.
  • a bus bar made of aluminum should be manufactured to a thickness of approximately 1.5 times to achieve an equivalent heat dissipation performance as compared to a bus bar made of a copper material having the same shape.
  • the heat dissipation coating layer (C) including the insulating heat dissipation filler is formed on the surface of the bus bar, that is, the heat dissipation coating layer (C) made of aluminum and the insulating heat dissipation filler (C) on the surface is formed of copper material Compared with a bus bar made of, even though the thickness is approximately 1.3 times, it is possible to achieve the same level of heat dissipation performance.
  • the material of the bus bar 120 is not limited thereto, and any conductor having a low impedance and a high current capacity may be used without limitation.
  • the cover 130 prevents the electric elements 10, 20, 30 and the busbars 120 protruding from one surface of the support plate 110 from being exposed to the outside, thereby preventing the electric elements 10, 20 from the external environment. And 30) and the busbar 120 may be protected.
  • the cover 130 may be fastened directly with the support plate 110 or may be fastened with a bracket not shown separately provided at the edge of the support plate 110.
  • the cover 130 may have an enclosure shape, one side of which is open.
  • the cover 130 is not limited thereto, and the cover 130 may be formed as a single member, or a plurality of components may be assembled with each other to form a single enclosure.
  • the cover 130 may be a method of covering one support plate 110 as shown in Figs. 1 and 13, a plurality of support plates 110 disposed adjacent to each other as shown in FIG. ) May be covered by a single cover 130 at the same time.
  • the cover 130 may be made of a general plastic material having insulation, but at least a portion thereof may be made of a plastic material having heat dissipation and insulation similar to the support plate 110.
  • the electromagnetic shielding part can prevent the malfunction and damage of the electronic component by the electromagnetic wave. Accordingly, the power relay assembly 100 according to an embodiment of the present invention prevents performance degradation due to heat and damage to components through the support plate 110 to which heat dissipation is added, but also by electromagnetic waves through the electromagnetic shield. Problems such as malfunction and damage of electronic components can also be prevented.
  • Such an electromagnetic shield may be provided on the support plate 110 or may be provided on the cover 130 side.
  • the electromagnetic shielding portion may be a plate-shaped metal member 140 embedded in the support plates (110, 210), as shown in FIGS.
  • the metal member 140 may be a sheet-like plate material, or may be a metal mesh.
  • the metal member 140 may be embedded in a portion of the support plates 110 and 210 made of a plastic material having insulation and heat dissipation to prevent electrical shorts.
  • the metal member 140 may be integrally formed with a portion made of a plastic material having insulation and heat dissipation among the support plates 110 and 210 through insert injection molding.
  • the support plates 110 and 210 illustrated in FIGS. 4 to 7 are made of plastic, mechanical strength may be improved while implementing the electromagnetic shielding function through the metal member 140.
  • the support plates 110 and 210 are made of an injection molding, the support plates 110 and 210 may be implemented to have a thin thickness by improving mechanical strength through the metal member 140.
  • the metal member 140 may be used without limitation when the metal material having a predetermined thermal conductivity.
  • the metal member 140 may be an alloy including one metal selected from the group consisting of aluminum, magnesium, iron, titanium, and copper or at least one metal selected.
  • the metal member 140 may be embedded in the support plates 110 and 210 so that the front surface is completely surrounded by a portion made of a plastic material having insulation and heat dissipation.
  • 5 and 7 may be disposed on the bottom of the support plates (110, 210) so that one surface is exposed to the outside while contacting the portion made of a plastic material having insulation and heat dissipation.
  • the metal member 140 when the metal member 140 is integrated with the support plates 110 and 210 by insert injection, the metal member 140 has an interface with portions of the support plates 110 and 210 made of a plastic material having insulation and heat dissipation. It can be surface treated so as not to be spaced apart. Through this, the support plates 110 and 210 may increase the bonding force between the metal member 140 and a portion made of a plastic material having insulation and heat dissipation.
  • the metal member 140 may have a nano-sized microgroove in a predetermined pattern on at least one surface thereof in order to improve a bonding force with a portion made of a plastic material having insulation and heat dissipation.
  • the support plates 110 and 210 include a metal member 140 functioning as an electromagnetic shield
  • the metal member 140 of the bus bar 120 at least partially in contact with the support plates 110 and 210. It may be arranged to maintain a predetermined distance d from the end.
  • the separation distance d between the metal member 140 and the portion 121 of the bus bar 120 contacting the support plates 110 and 210 may have a spacing of 1 mm or more. This is to satisfy the required withstand voltage while maintaining insulation.
  • the metal member 140 may be a plate-shaped metal plate having a predetermined area as described above.
  • the metal member 140 is not limited thereto, and may be provided as a rod having a predetermined aspect ratio.
  • the metal member 140 may have a closed loop shaped edge such as a square or a circle, and may have a mesh type in which a plurality of wires or bars are spaced at predetermined intervals inside the edge.
  • a plurality of wires or bars disposed inside the edge may be arranged to form a parallel structure, a grid structure, a honeycomb structure, and various structures in which they are combined.
  • the support plates 110 and 210 include a metal member 140 functioning as an electromagnetic shield
  • the metal member 140 may be connected to an earth terminal through a cable.
  • the metal member 140 having the front surface embedded in the support plate 110 may be connected to an earth terminal through a cable. Accordingly, the electromagnetic wave absorbed through the metal member 140 may further increase the electromagnetic shielding performance by moving to the ground side through the cable and the ground terminal.
  • the metal member 140 is connected to the ground terminal via a cable to improve electromagnetic shielding performance.
  • the present invention is not limited thereto, and the electromagnetic wave absorbed through the metal member 140 is externally provided. It should be noted that any form that can be discharged can be used without limitation.
  • FIG. 4 is shown as being connected to the ground terminal via a cable, the present invention is not limited thereto, and the support plates 110 and 210 shown in FIGS. 5 to 7 may be applied in the same manner. .
  • the electromagnetic shield may be implemented in the form shown in FIGS. 9 and 10. That is, in the present embodiment, the electromagnetic shielding part may implement the electromagnetic shielding function by part of the support plate 310 including an electrically conductive component.
  • the support plate 310 may include a plate-shaped first plate 312 and the second plate 314 stacked on each other.
  • the first plate 312 may be made of a plastic material having heat dissipation and insulation
  • the second plate 314 may be made of a plastic material having heat dissipation and non-insulation.
  • the second plate 314 may include an electrically conductive filler to implement an electromagnetic shielding function.
  • the second plate 314 may form part of the support plate 310 and at the same time may serve as an electromagnetic shield.
  • the first plate 312 may have a form in which an insulating heat dissipation filler is dispersed in a polymer matrix so as to have heat dissipation and insulation
  • the second plate 314 may include a heat dissipating filler and an electrically conductive filler in the polymer matrix. It may be in dispersed form.
  • first plate 312 and the second plate 314 may be an injection molding formed by injection molding
  • the support plate 310 is the first plate 312 and the second plate ( 314 may be in an integrated form.
  • the bus bar 120 may be disposed to contact the first plate 312 having heat dissipation and insulation properties of the support plate 310.
  • the bus bar 120 may be partially embedded in the first plate 312 as shown in FIG. 9, and one surface of the bus bar 120 may be formed as shown in FIG. 10. It may be fixed in contact with one surface.
  • the support plate 310 may prevent electrical short by contacting and fixing the first plate 312 having insulation even when a part of the bus bar 120 is fixed in a contacted state.
  • the second plate 314 may smoothly absorb and block electromagnetic waves.
  • the polymer matrix constituting the first plate 312 and the second plate 314 may be used without limitation when implemented as a polymer compound capable of injection molding without inhibiting the dispersibility of the heat dissipation filler.
  • the adhesiveness between the dissimilar materials is not limited and may be used without limitation as long as the material can realize good adhesiveness.
  • the polymer matrix may be a known thermoplastic polymer compound
  • the thermoplastic polymer compound is polyamide, polyester, polyketone, liquid crystal polymer, polyolefin, polyphenylene sulfide (PPS), polyether ether ketone (PEEK) ), Polyphenylene oxide (PPO), polyethersulfone (PES), polyetherimide (PEI), and one compound selected from the group consisting of polyimide, or two or more kinds of mixtures or copolymers.
  • the insulating heat dissipation filler included in the first plate 312 may be used without any limitation as long as the insulating heat dissipation filler simultaneously has insulation and heat dissipation.
  • the insulating heat-radiating filler is selected from the group consisting of magnesium oxide, titanium dioxide, aluminum nitride, silicon nitride, boron nitride, aluminum oxide, silica, zinc oxide, barium titanate, strontium titanate, beryllium oxide, silicon carbide and manganese oxide It may include one or more.
  • the insulating heat dissipating filler may be porous or non-porous, and may be a core shell type filler having a known conductive heat dissipating filler such as carbon-based or metal as a core and an insulating component surrounding the core.
  • the surface may be modified with functional groups such as silane group, amino group, amine group, hydroxy group, carboxyl group, etc. to improve the wettability and the like and improve the interfacial bonding force with the polymer matrix.
  • the electrically conductive filler included in the second plate 314 may be used without limitation in the case of a known electrically conductive filler.
  • the electrically conductive filler may include at least one of at least one metal and an electrically conductive polymer compound selected from the group consisting of aluminum, nickel, copper, silver, gold, chromium, platinum, titanium alloys, and stainless steel. .
  • the electrically conductive polymer compound is polythiophene, poly (3,4-ethylenedioxythiophene), polyaniline, polyacetylene, polydiene 1 selected from the group consisting of acetylene, poly (thiophenevinylene), polyfluorene and poly (3,4-ethylenedioxythiophene) (PEDOT): polystyrenesulfonate (PSS) It may include more than one species.
  • the first plate 312 and the second plate 314 are illustrated as having the same shape, but the present invention is not limited thereto.
  • the first plate 312 and the second plate 314 are not limited thereto. May be implemented in such a way that the edge side of the second plate 314 surrounds the edge of the first plate 312, and the first plate 312 and the second plate 314 are stacked on each other. At the same time, the edge side of the first plate 312 may be embodied in such a manner as to surround the edge of the second plate 314.
  • the electromagnetic shielding part may be provided on one surface of the cover 130 as shown in FIG. 11. That is, in the present exemplary embodiment, the electromagnetic shielding part may be a shielding coating layer 240 having electrical conductivity to shield electromagnetic waves and formed to a predetermined thickness on the inner surface of the cover 130, and the shielding coating layer 240 may be electrically conductive. It may be a polymer resin layer containing a filler or a deposition layer on which a metal material is deposited.
  • the polymer resin layer containing the electrically conductive filler may be in the form of a conductive filler dispersed in a known thermosetting polymer compound or a thermoplastic polymer compound.
  • the electrically conductive filler may include any one or more of at least one metal and an electrically conductive polymer compound selected from the group consisting of aluminum, nickel, copper, silver, gold, chromium, platinum, titanium alloys and stainless steel.
  • the electrically conductive polymer compound is polythiophene, poly (3,4-ethylenedioxythiophene), polyaniline, polyacetylene, polydiene 1 selected from the group consisting of acetylene, poly (thiophenevinylene), polyfluorene and poly (3,4-ethylenedioxythiophene) (PEDOT): polystyrenesulfonate (PSS) It may include more than one species.
  • the deposition layer may be applied without limitation as long as it is a metal material that can be deposited, such as aluminum, nickel, copper, silver, gold, chromium, platinum, titanium alloys, and stainless steel.
  • the shielding coating layer 240 may be formed only on the inner surface of the cover 130, but is not limited thereto and may be applied to the outer surface of the cover 130, the cover 130 of the It may be applied to both the inner and outer surfaces.
  • the shielding coating layer 240 may be locally formed on a portion of the cover 130 or may be formed on the entire area of the cover 130.
  • the shielding coating layer 240 may be a metal thin film layer in which a thin metal plate is attached via an adhesive layer in addition to an application layer or a deposition layer.
  • the support plates 110 and 210 may be implemented in various ways.
  • the support plate 110 may include a plate-shaped first plate 111, a second plate 112, and a third plate 113 as shown in FIGS. 1 to 5.
  • the first plate 111, the second plate 112, and the third plate 113 may be sequentially stacked, and the first plate 111, the second plate 112, and the third plate ( At least the first plate 111 of the 113 may be formed of a plastic material having heat dissipation and insulation.
  • the second plate 112 and the third plate 113 may include a first portion 121 embedded in the support plate 110 of the bus bar 120. And placement holes 114a and 114b having a shape corresponding to the second portion 122, wherein the placement holes 114a and 114b are the second plate 112 and the third plate 113. Each can be formed through.
  • the shapes of the placement holes 114a and 114b may be appropriately changed according to the shapes of the first portion 121 and the second portion 122 of the busbar 120 embedded in the support plate 110. Can be.
  • the heat generated during the operation of the electrical elements 10, 20, 30 and the busbars 120 may be transferred to the first plate 111 having heat dissipation and then transferred to the outside.
  • the bus bar 120 may be fixed by the second plate 112 and the third plate 113 in a state in which the second portion 122 is embedded in the support plate 110.
  • the first plate 111, the second plate 112 and the third plate 113 which are sequentially stacked may be attached to each other via an adhesive member (not shown).
  • the adhesive member may be a general adhesive member, but preferably, a heat radiation adhesive member including a thermally conductive filler may be used.
  • the first plate 111, the second plate 112 and the third plate 113 may be attached to each other via a known heat transfer material (not shown) such as Tim.
  • the first plate 111, the second plate 112, and the third plate 113 may be sequentially stacked and fixed through a fastening member (not shown) such as a bolt member.
  • the first plate 111 is a plastic material having heat dissipation and insulation
  • the second plate 112 and the third plate 113 may be made of a general plastic material having insulation.
  • the heat transferred to the first plate 111 having heat dissipation through the bus bar 120 may be the second plate 112 and / or the third plate stacked on the first plate 111.
  • the heat transfer in the vertical direction may be blocked. Accordingly, the heat transferred to the first plate 111 may be blocked from being transferred to the electric elements 10, 20, and 30 through the second plate 112 and / or the third plate 113. .
  • the heat generated from the bus bar 120 may increase the heat dissipation performance by allowing the heat dissipation path to be concentrated toward the first plate 111.
  • the power relay assembly 100 is natural in the lower side of the case 1 in a state in which one or a plurality is disposed inside the case 1 of the enclosure shape as shown in Figs.
  • the power relay assembly 100 has heat generated by the electrical elements 10, 20, 30 and / or busbars 120 directly contacting the case 1.
  • the first plate 111 By being concentrated in contact with the first plate 111 can be more efficiently radiated heat.
  • the support plate 110 when the support plate 110 is separated into the first plate 111, the second plate 112 and the third plate 113, the second plate 112 and the third plate 113 is Like the first plate 111, it may be made of a plastic material having heat dissipation and insulation. That is, the support plate 110 may be made of a plastic material having a heat dissipation as a whole. In this case, the support plate 110 may increase heat dissipation performance by increasing the overall heat capacity as compared with the case where only the first plate 111 is made of a plastic material having heat dissipation and insulation.
  • the support plate 210 may be an injection molding formed of a resin formation composition having heat dissipation and insulation as shown in FIG. 6.
  • the support plate 210 may be made of a plastic material having a heat dissipation and an insulating property as a whole, and the bus bar 120 may be formed integrally with the support plate 210.
  • the bus bar 120 may be integrated with the support plate 210 in a form in which at least a portion of the bus bar 120 is embedded in the resin forming composition in the process of molding the support plate 210 through the insert molding using the resin forming composition.
  • the first portion 121 and the second portion 122 may be embedded in the support plate 210.
  • the support plate 210 of the present embodiment is separated into the first plate 111, the second plate 112, and the third plate 113, as described above, and the first plate 111, the first plate 111, and the third plate 113, respectively.
  • the second plate 112 and the third plate 113 can increase the overall heat capacity to further increase the heat dissipation performance, and the cumbersome assembly process is omitted. Productivity can be increased.
  • the plastic having a heat dissipation and insulation used to configure the above-described support plates (110, 210) may be a form in which an insulating heat dissipation filler is dispersed in a polymer matrix.
  • the polymer matrix may be used without limitation when it is implemented as a polymer compound capable of injection molding without impairing the dispersibility of the heat dissipation filler.
  • the polymer matrix may be a known thermoplastic polymer compound, the thermoplastic polymer compound is polyamide, polyester, polyketone, liquid crystal polymer, polyolefin, polyphenylene sulfide (PPS), polyether ether ketone (PEEK) ), Polyphenylene oxide (PPO), polyethersulfone (PES), polyetherimide (PEI), and one compound selected from the group consisting of polyimide, or two or more kinds of mixtures or copolymers.
  • the thermoplastic polymer compound is polyamide, polyester, polyketone, liquid crystal polymer, polyolefin, polyphenylene sulfide (PPS), polyether ether ketone (PEEK) ), Polyphenylene oxide (PPO), polyethersulfone (PES), polyetherimide (PEI), and one compound
  • the insulating heat dissipating filler may be used without any limitation as long as it has both insulating and heat dissipating properties.
  • the insulating heat-radiating filler is selected from the group consisting of magnesium oxide, titanium dioxide, aluminum nitride, silicon nitride, boron nitride, aluminum oxide, silica, zinc oxide, barium titanate, strontium titanate, beryllium oxide, silicon carbide and manganese oxide It may include one or more.
  • the insulating heat dissipating filler may be porous or non-porous, and may be a core shell type filler having a known conductive heat dissipating filler such as carbon-based or metal as a core and an insulating component surrounding the core.
  • the surface may be modified with functional groups such as silane group, amino group, amine group, hydroxy group, carboxyl group, etc. to improve the wettability and the like and improve the interfacial bonding force with the polymer matrix.
  • the present invention is not limited thereto, and the plastic having insulation and heat dissipation may be used without limitation.
  • bus bar 120 may be at least partially embedded in the support plates 110 and 210 as described above.
  • the bus bar 120 extends from the end of the first portion 121 and the first portion 121 embedded in the support plates 110 and 210. And extension portions 122 and 123.
  • extension portions 122 and 123 may have a second portion 122 and an end portion of the second portion 122 extending from the end portion of the first portion 121 in the thickness direction of the support plates 110 and 210. It may include a third portion 123 extending from the protruding outward of the support plates (110, 210), the second portion 122 is embedded in the support plates (110, 210) together with the first portion (121). Can be.
  • first plate 121 and the second portion 122 embedded in the support plates 110 and 210 are the first plate 111, the second plate 112 and the third plate ( When 113 is implemented in a stacked form, it may be disposed in the placement holes 114a and 114b formed through the second plate 112 and the third plate 113.
  • the first portion 121 embedded in the support plate 110 may be covered by the third plate 113 in an upper surface thereof in a state where the bottom surface thereof is in contact with the first plate 111.
  • the first plate 111, the second plate 112, and the third plate 113 may be fixed through the second plate 112 and the third plate 113.
  • the bus bar 120 may be fixed to the support plate 110 even without using a separate fixing member.
  • first portion 121 of the first portion 121 and the second portion 122 embedded in the support plate 110 is directly connected to the first plate 111 made of a plastic material having heat dissipation and insulation. It may be arranged to contact.
  • the bus bar 120 when the bus bar 120 is entirely made of a plastic material having heat dissipation and insulation, the bus bar 120 may have at least a part of the resin forming composition in an insert molding process using a resin forming composition. Insert molding may be performed in a state in which the first part 121 and the second part 122 may be embedded in the support plate 210.
  • extension part 122 and 123 may be plural in number.
  • bus bar 120 may have a shape in which one surface is fixed to one surface of the support plate 210 as illustrated in FIG. 10, and the bus bar 120 may be supported in FIGS. 4 to 8.
  • the plate 110 may be fixed to one surface exposed in the same manner as in FIG. 10.
  • the first part 121 and the second part 122 of the bus bar 120 embedded in the support plates 110 and 210 may be embedded.
  • a known heat transfer material (not shown) may be interposed on the outer surface of the silver. Such a heat transfer material can smoothly transfer the heat present in the bus bar 120 to the support plates 110 and 210 having heat dissipation.
  • the power relay assembly 100 may further include a protective coating layer 150.
  • the protective coating layer 150 may be applied to cover all of the outer surfaces of the support plates 110 and 210 and the busbars 120.
  • the protective coating layer 150 may also cover all of the outer surfaces of the electric elements (10, 20, 30) mounted on one surface of the support plates (110, 210).
  • the application position of the protective coating layer 150 is not limited thereto, and may be applied only to the outer surfaces of the support plates 110 and 210, or may be applied only to the outer surfaces of the busbars 120.
  • the protective coating layer 150 may prevent scratches due to physical stimuli applied to the surfaces of the support plates 110 and 210 and the busbars 120, and further improve surface insulation.
  • the protective coating layer 150 may serve to prevent the separation of the insulating heat dissipation filler located on the surface when the support plates 110 and 210 are made of plastics in which the insulating heat dissipation filler is dispersed.
  • the protective coating layer 150 may be implemented with a known thermosetting polymer compound or a thermoplastic polymer compound.
  • the thermosetting polymer compound may be one compound selected from the group consisting of epoxy, urethane, ester, and polyimide resins, or two or more mixtures or copolymers.
  • the thermoplastic polymer compound is polyamide, polyester, polyketone, liquid crystal polymer, polyolefin, polyphenylene sulfide (PPS), polyether ether ketone (PEEK), polyphenylene oxide (PPO), polyether sulfone (PES) ), One compound selected from the group consisting of polyetherimide (PEI) and polyimide, or mixtures or copolymers of two or more thereof.
  • the protective coating layer 150 may be applied to the outer surface of the support plates 110 and 210 may prevent the heat transferred to the support plate 110 side to be discharged to the outside.
  • the protective coating layer 150 applied to the present invention may further include an insulating heat dissipation filler to improve the heat radiation characteristics to the outside.
  • the insulating heat dissipation filler may be used without limitation in the case of a known insulating heat dissipation filler.
  • the protective coating layer 150 may include an insulating heat dissipation filler dispersed in the polymer matrix to have both heat dissipation and insulation at the same time as the support plates 110 and 210 described above.
  • the insulating heat dissipation filler included in the protective coating layer 150 may be the same type as the insulating heat dissipation filler included in the support plates 110 and 210 or may be used in a different kind.
  • the plurality of electrical elements 10, 20, and 30 may be mounted on one surface of the support plates 110, 210, and 310, and may be electrically connected to each other through the bus bar 120. Through this, the electric elements 10, 20, and 30 may serve to block or connect the high voltage current supplied from the battery to the driving control unit.
  • the electric devices 10, 20, and 30 may be main relays, precharge relays, precharge resistors, battery current sensors, main fuses, etc., and may be connected to each other through the busbar 120 or a cable (not shown). Can be electrically connected.
  • the plurality of busbars 120 may be electrically connected through circuit patterns (not shown) formed on the support plates 110, 210, and 310.
  • the electric devices 10, 20, 30 drive the motor in the drive controller by supplying power to a drive controller (not shown) that controls the drive voltage by cutting off or connecting the high voltage current supplied from the battery. It can generate a control signal for.
  • the driving controller may generate a control signal for driving the motor, and the driving of the motor may be controlled by controlling the inverter and the converter through the control signal.
  • the main relay is connected and the precharge relay is blocked, so that the power of the battery may be applied to the inverter through the main circuit.
  • the main relay when the vehicle is off, the main relay is cut off, and the connection between the battery and the inverter is blocked, thereby preventing the battery voltage from being transferred to the motor through the inverter. At this time, when the main relay is in a disconnected state, the capacitor connected to the inverter may be discharged.
  • the charging of the capacitor may be started by applying the precharge relay to the inverter while the voltage of the battery is dropped by the precharge resistor. Then, when the capacitor is sufficiently charged, the main relay is connected and at the same time the precharge relay is cut off so that the voltage of the battery can be applied to the inverter.

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  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Cooling Or The Like Of Electrical Apparatus (AREA)

Abstract

L'invention concerne un ensemble relais de puissance. Un ensemble de relais de puissance selon un mode de réalisation donné à titre d'exemple de la présente invention comprend : une plaque de support ayant au moins un élément électrique monté sur une surface associée et comprenant un matériau plastique ayant des propriétés de dissipation de chaleur et d'isolation; au moins une barre omnibus connectée électriquement à l'élément électrique; et une unité de protection d'ondes électromagnétiques pour protéger les ondes électromagnétiques générées par l'élément électrique.
PCT/KR2018/002637 2017-03-06 2018-03-06 Ensemble relais de puissance WO2018164449A1 (fr)

Priority Applications (4)

Application Number Priority Date Filing Date Title
CN201880011379.2A CN110291608B (zh) 2017-03-06 2018-03-06 一种功率继电器组件
US16/486,643 US11420572B2 (en) 2017-03-06 2018-03-06 Power relay assembly
EP18764722.7A EP3594984B1 (fr) 2017-03-06 2018-03-06 Ensemble relais de puissance
JP2019546797A JP6913967B2 (ja) 2017-03-06 2018-03-06 パワーリレーアセンブリー

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
KR10-2017-0028393 2017-03-06
KR20170028393 2017-03-06
KR10-2018-0025986 2018-03-05
KR1020180025986A KR102119594B1 (ko) 2017-03-06 2018-03-05 파워 릴레이 어셈블리

Publications (1)

Publication Number Publication Date
WO2018164449A1 true WO2018164449A1 (fr) 2018-09-13

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PCT/KR2018/002637 WO2018164449A1 (fr) 2017-03-06 2018-03-06 Ensemble relais de puissance

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WO (1) WO2018164449A1 (fr)

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CN113170596A (zh) * 2018-11-21 2021-07-23 株式会社自动网络技术研究所 电路结构体
WO2021157206A1 (fr) * 2020-02-03 2021-08-12 株式会社デンソー Dispositif de conversion de puissance

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113170596A (zh) * 2018-11-21 2021-07-23 株式会社自动网络技术研究所 电路结构体
CN113170596B (zh) * 2018-11-21 2024-06-11 株式会社自动网络技术研究所 电路结构体
WO2021157206A1 (fr) * 2020-02-03 2021-08-12 株式会社デンソー Dispositif de conversion de puissance
JP2021125926A (ja) * 2020-02-03 2021-08-30 株式会社デンソー 電力変換装置
JP7180625B2 (ja) 2020-02-03 2022-11-30 株式会社デンソー 電力変換装置

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