JPH0811010Y2 - Control panel device - Google Patents

Description

[Detailed Description of the Invention] [Industrial field of application] The present invention relates to a control panel device of a machine tool such as an electric discharge machine or a laser beam machine, and in particular, cooling for forced cooling of a machining power source part of the control panel device. Regarding the improvement of the structure.

[Conventional technology]

Since the machining power source of electric discharge machines, laser machines, and other control panel devices generates a large amount of heat, an outside air intake port with a filter is generally installed at the bottom of the casing that constitutes the control panel device. On the other hand, the inside air exhaust port is installed on the ceiling plate of the housing to perform forced cooling. A fan motor using a propeller fan is usually used as the blower for the forced cooling, and a plurality of fan motors are required. In order to facilitate the assembly and maintenance of the control panel device, the fan motor is incorporated in a freely drawable box-shaped case to form a fan unit. The fan unit can be horizontally taken in and out through rails which are guide members provided on both side surfaces of the housing, and is screwed and fixed to the housing side at the front surface of the case at the storage position.

[Problems to be solved by the device]

In the above-mentioned conventional control panel device, the miniaturization of the panel leads to higher packaging density, stricter thermal conditions, and the distance between the fan unit and other units is close to each other. It became like this.

Since the reliability of the electronic components mounted on each unit greatly depends on the ambient temperature, the temperature rise inside the panel must be suppressed to a low level. For this reason, the fan motor for forced cooling has a high static pressure and uses a large amount of air flow, so the fan suction flow speed increases. On the other hand, by increasing the packaging density, the components of other units are brought closer to the fan suction side to induce turbulence in the suction flow, resulting in random pressure fluctuations on the fan blade surface, increasing fan noise, and increasing fan suction. There was a problem that the wind noise from the parts arranged near the side became loud.

In particular, precision machine tools that generate noise due to machining current, such as electric discharge machines, are often installed in an air-conditioned room that doubles as a shielded room. It was desired to reduce the noise caused by the noise.

The present invention has been made to solve the above problems, and has a structure that can improve the cooling effect while ensuring high density mounting without increasing the size of the conventional device and can reduce the noise due to forced air cooling. The purpose is to obtain a control panel device that has.

[Means for solving the problem]

A control panel device according to the present invention has a hollow housing having an opening on the front surface and an exhaust opening on the top surface, and is installed inside the housing so that it can be inserted into and removed from the opening on the front surface of the housing and has an intake opening on the lower surface. A blower device having a discharge port on its upper surface, a guide member fixed to the casing for guiding the blower device to its installation position, and a unit accommodating a heat-generating component, etc. The guide member provided between the top surface of the housing and the parallel front guide portion and the rear guide portion that are staggered from each other, and the intermediate guide portion that is inclined upward between the front guide portion and the rear guide portion. In the mounting process, the blower is guided horizontally in the front guide part, upward in the intermediate guide part, and horizontally supported in the rear guide part. The blower is rear part by the rear guide part And supported, and the discharge port surface of the blower in lifted and fixed state forward are those in a state of being opposed to the lower surface of the unit.

Further, the unit is provided in a lower portion of the blower, and the guide member has parallel front guide portions and rear guide portions which are staggered from each other, and an intermediate portion which is inclined upward between the front guide portion and the rear guide portion. A structure having a guide portion, the blower, in the mounting process in the front guide portion in the horizontal direction,
The intermediate guide portion is guided upward, and the rear guide portion is horizontally supported, and the blower is supported by the rear guide portion at the rear portion and is also lifted and fixed at the front portion. In this state, the discharge port surface of the blower is in contact with the inner wall of the top surface of the housing with the discharge port and the exhaust port of the ceiling faced to each other, and is arranged at the lower portion on the intake port surface side of the blower device. There is a space between the above described unit and the above unit.

[Action]

According to this invention, the front guide part, the intermediate guide part and the rear guide part of the guide member support the blower device and move the blower device horizontally and upward to guide the blower device to a predetermined position, and the rear guide part. With the outlet of the blower facing the exhaust port of the housing, the outlet surface is brought into contact with the inner wall of the top surface of the housing, and the inlet of the blower is placed below Separate from parts.

Further, the guide member brings the discharge port surface of the blower device into contact with the lower surface of the air duct member while the blower device is supported by the rear guide portion thereof, and separates the intake port of the blower device from the heat-generating components and the like arranged below it. .

〔Example〕

1 to 5 are views showing an embodiment of a control panel device according to the present invention. FIG. 1 is a structural diagram showing a schematic internal structure thereof, and FIGS. FIG. 5 is a partial detailed view showing the details of the main part of the drawing, and FIG. 5 is an explanatory view of mounting the fine unit.

The configuration will be described below with reference to FIGS. 1 to 4. In the drawings, (1) is a control panel device, and (2) is a chassis having an opening on the front surface which is a base body of the control panel device (1). ，
(3) serves as a lid for the front opening of the housing, and is attached to the housing (2) so as to be openable and closable, and the lower part thereof has an intake port (3A) for taking in air from the outside and this intake port. A door with a filter (3B) arranged on the back, (4) constitutes the top surface of the housing (2), and has an exhaust port (4A) at the center thereof, and the door (3) The front part facing to the inside is a flange (4
The ceiling plate having B), the flange (4B) serves as a contact surface with the facing door (3) and also serves as a reinforcing structure for the housing (2), and the entire circumference of the front surface of the housing facing the door. It is provided all over. (5) is a cable outlet provided on the rear surface of the housing (2) for drawing out internal wiring (not shown) to the outside, and (6) is attached to the ceiling plate (4) facing the exhaust port (4A) An exhaust louver, (7) is a bottom plate forming the bottom of the housing (2), (8) is a constant voltage unit attached to this bottom plate, and (9) is a support member provided above this constant voltage unit. The fixed auxiliary power supply unit (10) is a symmetric blower which is arranged on both side walls of the casing (2) from the front to the back at a position slightly above the power supply unit. A pair of guide rails (10A) serving as guide members of the apparatus, a horizontal portion serving as a front guide portion formed on the guide rails for supporting a fan unit (11) described later when the guide unit is inserted and removed,
(10B) is a horizontal edge that extends horizontally from the side edge of this horizontal part toward the back of the casing formed at the upper edge front part of the side wall that is bent upwards, and (10C) is upwards following this horizontal edge. An upward sloping edge that is an intermediate guide part that is inclined at a predetermined height,
(10D) is horizontal to the rear following this uphill edge.
A horizontal groove formed in the shape of a letter (10
E) and (10F) are mounting legs that are bent outward in an L shape at the front and rear ends of the side wall of the guide rail (10), and are mounted on the side wall of the housing (2). It has a leg height that allows the side wall of the guide rail (10) to be protruded inward by a predetermined distance from the inner side surface of the front opening of the housing (2).

(11) is a fan unit that is supported by a guide rail (10) and is inserted into and removed from the housing through a front opening that can be moved forward and backward in a pulling manner. (11A) is an intake port provided at four locations on a bottom plate (11B) , (11C) are notches provided in the front upper corners of the left and right side plates (11D), (11E) is a front plate having a mounting hole at the top, (11F) is a rear plate, and (11G) is These bottom plates, left and right side plates, and the discharge port that is the top open end of the frame composed of the front and rear plates, (12) are guide pins that are set slightly outwards at the rear parts of the left and right side plates (11D). ，
(13) is a fan motor fixed to the inner surface of the bottom plate (11B) with its suction port facing the intake port (11A),
(14) is a terminal block for electric wiring of the fan motor mounted on the front plate (11E), and the fan unit (11) is composed of these (11A) to (14).

(15) is a horizontal frame with an L-shaped cross-section that is bridge-fixed to the front of both side walls of the housing that secures this fan unit (11) at its final mounting position with screws using the holes of its front plate (11E). ，
Front plate (11E) whose upper surface is flat and front surface is downward
It has a front surface with a screw hole for fixing. From the lower end of the front droop to the horizontal part (10A) of the guide rail (10)
The height to the top surface of the fan unit (11) is set larger than the top and bottom height of this fan unit so that it can be easily inserted and removed. The (16) has a mounting portion (16A) which is arranged and fixed on the upper surface of the horizontal frame (15) and is parallel to the rear wall of the housing (2) with a distance from each other and is bent upward. The pair of rails (17) shown in FIG. 3 are L-shaped and symmetrical with each other, and the pair of rails (1
6) A support tool having a square hole (17A) for inserting and holding the rear end of the rear end fixed to the rear wall of the housing (2), and (18) a rail (1
6) is placed on top of this rail and is pulled out of this rail in a pull-out manner.
The bottom shape fixed to A) is a fan unit (11).
A square frame-shaped resistor unit with the open ground, which is made to have the same size as the upper surface of the resistor unit, (19) is placed above this resistor unit (18), and the lower end is the upper end of this resistor unit. Has a three-sided surface to wrap the resistor unit, and a front surface with a notched lap portion so that the resistor unit does not touch each other when the unit is put in and out. Panel (4) of housing (2)
It is an exhaust duct that is attached so as to face the exhaust port (4A) provided on the. As shown in Fig. 3, the resistor unit (18) is arranged so that the bottom surface of the side wall slides on the rail (16).
A notch (18B) is provided so as not to hit the front end fixing part (16A) of the above, and as shown in FIGS. 2 and 4, there are four horizontal bars (20) internally bridged between both side walls. Each of them has a plurality of resistors (21) fixed in a skewed state, and two electric connectors (22) for wiring the resistors are provided outside the front wall.

Next, the method of mounting the fan unit will be described with reference to FIG. Open the door (3) and put the rear part of the bottom (11B) of the fan unit (11) on the front part of the horizontal part (10A) of the guide rail (10) and insert the fan unit into the back while guiding it to this surface. The guide pin (12) provided on the side wall (11D) of the is set up at a predetermined position slightly higher than the horizontal edge (10B) of the guide rail (10), so the guide pin is pushed in without hitting the horizontal edge. Then, when this guide pin is pushed to the position where it abuts on the ascending edge (10C) of the guide rail, the guide pin (12) is then engaged with and supported by the ascending edge (10C). The Yuan unit (11) itself starts to move upward along this ascending edge (10C) and moves upward along with it. As a result of this upward movement, the rear top surface of the Juan unit becomes a rail (16 ) While coming into contact with the lower surface of The notch (11C) provided on the left and right side walls (11D) that lifts the front as necessary so that this side wall does not contact the front droop of the horizontal frame (15) when lifting the front. It is provided at the position. When pushed further, the guide pin enters the horizontal groove (10D) and the rear upper surface of the left and right side plates (11D) of the fan unit (11) is the rail (16).
It comes into contact with the bottom of the U-shape and stops when it is almost in contact with the lower surface. On the other hand, while the front of the fan unit (11) is lifted upward, the front plate (11E) is fixed to the front portion of the lateral frame (15). In addition, the position of the guide pin (12) and the height of the rising slope edge are set so as to obtain such a relationship. In this way, the top surface of the fan unit (11) almost comes into contact with the lower surface of the rail (16) which is a part of the air duct member, and the fan unit (11), the rail (16), the resistor unit (18). ， Exhaust duct (19) ， Ceiling board exhaust port (4
Since A) and the exhaust louver (6) form an integrated air path, the air sucked from the air inlet of the air blower cools the heat generating parts inside the resistor unit (18) with almost no leakage on the way. It will be released to the outside and the cooling efficiency will be greatly improved.

On the other hand, with the upward movement of the fan unit (11), there is a space on the front surface of the air intake port (11A) that cannot be obtained by the conventional mere forward-backward drawing method. The turbulence of the flow is suppressed, the load fluctuation applied to the fan motor (13) is reduced, and the parts that cause wind noise are moved away from the vicinity of the intake port (11A) where the wind speed is slow. Therefore, the noise of the fan motor (11) due to load fluctuations and the wind noise due to the wind noise of the parts could be significantly reduced. As described above, according to the present invention, the dead space existing between the fan unit (11) and the air passage member above the fan unit (11), which has always been required in terms of assembly or operation, is eliminated from the guide rail (10). This improvement is intended to improve the above-mentioned purpose without enlarging the housing (2) and without lowering workability.

As a modification of the present invention, for example, a resistor unit (1
8) If the air duct resistance inside can be reduced, the exhaust duct (1
It is also possible to eliminate 9), and the same effect as in the above embodiment can be obtained.

Next, another embodiment of the present invention will be described with reference to FIG. In the figure, the same reference numerals as those in the first embodiment indicate the same or corresponding portions, and the description thereof will be omitted. In this embodiment, when the fan unit (11) is finally attached, its discharge port (11
The guide rail (10) is arranged so that G) can be closely fixed to the inner surface of the ceiling plate (4) of the housing (2). A flange provided on the upper surface of the horizontal portion (10A) of the guide rail and the front surface of the ceiling plate (4) of the casing (4) so that the fan unit (11) can be mounted easily from the front opening of the casing (2). The vertical distance from the lower end of 4B) is set larger than the height of the fan unit (11), and the height of the upslope edge (10C) is correspondingly set to a predetermined dimension larger than the height of the flange (4B). It is set. (11H) is a flange formed by bending the upper end of the front plate (10E) of the fan unit (11) to the door side, and has a mounting hole in its surface, (4C) is a mounting hole for the flange inside the ceiling plate (4) It is a stud bolt that was planted facing the.

First fan unit (11) as in the first embodiment
The rear end of the bottom plate (11B) is placed in front of the horizontal part (10A) of the guide rail (10) and guided by this surface and pushed inward.
When the guide pin begins to be guided along this inclined edge while being supported by being engaged with C), the fan unit (11) also moves upward and the guide pin (12) is moved in the same manner as in the first embodiment. The bottom of the U-shaped horizontal groove (10D) is reached, and the upper surface of the fan unit (11) is almost in contact with the inner surface of the ceiling plate (4). Therefore, attach the flange (11H) mounting hole in front of the fan unit (10) to the stud bolt (4C).
The fan unit is fixed to the inner surface of the ceiling plate (4) with the upper surface discharge port (11G) facing the exhaust port (4A) by inserting it through the bottom and tightening it with a nut from below.

In this way, the discharge port (11G) of the fan unit is closely fixed to the inner surface of the ceiling plate (4) so as to face the exhaust port (4A), so that the exhaust gas from this fan unit is inside the housing (2). Since it is discharged to the outside through the exhaust louver (6) without leaking to the inside, the inside of the housing can be efficiently cooled.

As a result, a space corresponding to the upward movement of the fan unit is created between the auxiliary power supply unit (9) arranged below the guide rail (10) and the intake port (11A) of the fan unit (11). ， By this space, Juan unit (1
The flow of air sucked from the air intake (11A) of 1) is stable, and since there are no parts in the space where the flow velocity is high, there is no wind noise and low noise, so it is the same as in the first embodiment. The intended improvements of the present invention can be measured. Further, air flows into the space between the auxiliary power supply unit (9) and the fan unit (11) from around the auxiliary power supply unit (9). Does not decrease significantly. Because the discharge port (11
Since the surface of (G) is in contact with the lower surface of the exhaust duct (19), the entire space inside the control panel device (1) on the downstream side of the fan unit (11) is maintained at a negative pressure, and the auxiliary power supply is used. The outside air spreads to each part of the panel including the inside of the unit (9), so that the cooling can be performed well without using a fan unit having a large air volume.

[Advantages of the Invention] Since the control panel device of the present invention is configured as described above, the vertical space, which has been a dead space in the conventional pull-out type in which only a blower moves only in the front-rear direction, is effectively used. In addition, it is possible to do, and in the case where the unit containing the heat generating parts etc. is provided in the lower part of the blower, the exhaust gas that cooled the unit is discharged to the outside without flowing back to the unit side, This has the effect of improving the cooling efficiency. Also, in the case where the unit is provided between the blower and the top surface of the housing, the space below the intake port formed by separating and separating the unit efficiently suppresses turbulence of the air flow on the intake side. As a result, the effect of reducing the noise on the intake side is achieved.

[Brief description of drawings]

FIG. 1 is a block diagram showing the internal configuration of the control panel device of the present invention,
2 is an upper sectional view of FIG. 1, FIG. 3 is a perspective view of an essential portion of FIG. 2, FIG. 4 is a sectional view taken along the line XX of FIG. 2, and FIG. 2 is a vertical cross-sectional view of the upper portion corresponding to FIG. 2, and FIG. 6 is a cross-sectional view of the upper portion of a control panel device of another embodiment of the present invention. In the figure, (1) ... control panel device, (2) ... housing,
(4) …… Ceiling board, (4A) …… Exhaust port, (4C) …… Stud bolt, (8) …… Constant voltage unit, (9) …… Auxiliary power supply unit, (10) …… Guide rail, (10A) ...
… Horizontal part, (10C) …… Upward sloping edge, (10D) …… Horizontal groove, (11) …… Fun unit, (11A) …… Intake port,
(11G) ... Discharge port, (16) ... Rail, (18) ... Resistor unit. In the drawings, the same reference numerals indicate the same or corresponding parts.

Claims (2)

[Scope of utility model registration request] 1. A hollow housing having an opening on the front surface and an exhaust opening on the top surface, and a hollow housing which is inserted into and removed from the opening on the front surface of the housing and is installed inside the housing and has an intake opening on the lower surface and a discharge on the upper surface. In a control panel device comprising a blower device having an outlet, a guide member fixed to the housing and guiding the blower device to its installation position, and a unit accommodating a heat-generating component, the unit being the blower device. The guide member is provided between the top surface of the housing and the front guide portion and the rear guide portion which are parallel to each other and which are staggered from each other, and the intermediate guide portion which is inclined upward between the front guide portion and the rear guide portion. In the mounting process, the blower is horizontally guided by the front guide part, upwardly by the intermediate guide part, and horizontally guided by the rear guide part in a mounting process. The blower is installed in the rear guide section. The rear part is supported,
The control panel device is characterized in that a discharge port surface of the blower device faces a lower surface of the unit in a state where the front is lifted and fixed. 2. A hollow housing having an opening on the front surface and an exhaust port on the top surface, and a hollow housing which is inserted into and removed from the opening on the front surface of the housing and has an intake port on the lower surface and an exhaust gas on the upper surface. In a control panel device comprising an air blower having an outlet, a guide member fixed to the casing for guiding the air blower to its installation position, and a unit accommodating a heat-generating component, the unit is a blower of the air blower. The guide member is provided in the lower portion, and has a structure having a front guide portion and a rear guide portion that are parallel to each other and have a step difference, and an intermediate guide portion that is inclined upward between the front guide portion and the rear guide portion. The blower is guided horizontally in the mounting process while being supported horizontally by the front guide part, upward by the intermediate guide part, and horizontally by the rear guide part. Rear supported by interior And
Further, in a state where the front is lifted and fixed, the discharge port surface of the blower abuts the inner wall of the housing top surface with the discharge port and the exhaust port of the top surface facing each other, and the blower device. A control panel device, characterized in that a space is provided between the unit and the unit disposed on the lower side of the intake port surface side.