WO2018032709A1

WO2018032709A1 - Electric energy meter structure for ansi round meter of compatible single-phase and three-phase relay scheme

Info

Publication number: WO2018032709A1
Application number: PCT/CN2017/000471
Authority: WO
Inventors: 赵嵩; 曾长云
Original assignee: 宁波三星医疗电气股份有限公司
Priority date: 2016-08-16
Filing date: 2017-07-28
Publication date: 2018-02-22
Also published as: CN207263801U; CN106291018A; CN107765049A

Abstract

An electric energy meter structure for an ANSI (American National Standards Institute) round meter of a compatible single-phase and three-phase relay scheme, comprising a base (1), an inner cover (2) and an outer cover (3); a first circuit board (21) and a second circuit board (22) are provided in a cavity formed by the inner cover (2) and the base (1), the first circuit board (21) and the second circuit board (22) being vertically spaced and fixedly connected to a support structure; the base (1) is provided with a module assembly (4) of a relay and a transformer, the module assembly (4) being connected to a guide sheet (41), the guide sheet (41) protruding from the base (1). The electric energy meter for an ANSI round meter of a compatible single-phase and three-phase relay scheme is simple and reliable in structure, is easy to be manufactured at low cost, can realize the combination of the respective schemes of using a relay and using a manganese-copper transformer into one meter, is simple to be assembled at low cost, and meanwhile facilitates enterprises' production and stocking.

Description

An ANSI standard round table compatible single-phase three-phase relay scheme electric energy meter structure

Technical field

The invention relates to the field of electric energy meter structure, in particular to an ANSI standard round table compatible single-phase three-phase relay scheme electric energy meter structure.

Background technique

The electric energy meter is a meter used to measure electric energy, and is also called an electric meter, a fire meter, a kilowatt hour meter, and a meter for measuring various electric quantities.

ANSI refers to the American National Standards Institute, which was founded in 1918. At that time, many companies and professional technology groups in the United States had begun standardization work, but because there was no coordination between them, there were many contradictions and problems in order to further improve efficiency. Hundreds of scientific and technological societies, associations and organizations believe that it is necessary to establish a special standardization body and formulate a unified common standard. ANSI is born.

Under the prior art, the ANSI round-face manganese bronze and relay scheme cannot be a modality, or the single-phase and three-phase round tables cannot be combined with one phenotype. The assembly of the electric energy meter cover and the bottom casing is usually fixed by screws. This method is relatively cumbersome to assemble, and the company needs to open two kinds of molds for the cover, which is costly and inconvenient to produce and stock.

At present, due to the large space occupied by relays and transformers, the common manganese copper solution has limited phenotypic space and is incompatible. Due to the size limitation of ANSI standard, the diameter of the round table cannot be increased. Only the existing space can be considered to place the relay. Devices such as transformers, therefore, a set of structural components in the prior art cannot be compatible with relays and manganese-copper solutions.

In summary, there is a need for further improvements to the energy meter.

Summary of the invention

The technical problem to be solved by the present invention is to provide an ANSI standard round table compatible single-phase three-phase relay scheme electric energy meter structure, the structure is simple and reliable, the manufacturing is convenient and the cost is low, and a phenotype and a relay can be realized. And manganese and copper two programs, simple assembly, low cost, and convenient for enterprises to produce and stock.

The technical solution adopted by the present invention to solve the above technical problem is: an ANSI standard round table compatible single-phase three-phase relay scheme electric energy meter structure, comprising a base, an inner cover disposed on the base, and a cover disposed outside the inner cover, The first circuit board and the second circuit board are disposed in the cavity formed by the inner cover and the base; the base is provided with a support structure, and the first circuit board and the second circuit board are arranged at intervals And being fixedly connected to the supporting structure; the base is provided with a module assembly of an electrical and a transformer, the module assembly is provided with a connecting piece, and the guiding piece passes out of the base.

Preferably, the support structure includes a first pillar, and the first pillar top is provided with a second pillar, The top end of the second pillar is provided with a guiding post, the first circuit board is disposed on the first pillar, and the second circuit board is disposed on the second pillar.

Further preferably, the second leg diameter is smaller than the diameter of the first leg.

In order to facilitate the connection of the first circuit board, preferably, the base is further provided with a hooking member, and the hooking member clamps the first circuit board to the first pillar to prevent it from coming off.

Preferably, a programming controller is disposed on the second circuit board, a top rod is disposed on the inner cover directly above the programming controller, and a programming button is disposed on the outer cover above the top rod. The programming button is connected with a dialing member, and the dialing member is rotatably disposed on the support of the outer cover. The dialing member and the support are matched with a through hole through which the lead can be realized. Sealing thereby preventing the toggle member from rotating.

In order to facilitate the connection between the base and the inner cover, preferably, the base is provided with a first flange, the inner cover is provided with a second flange, and the first flange and the second flange are ultrasonically welded Attached together to mount the inner cover to the base.

Preferably, the inner cover is provided with a battery compartment card slot and a battery compartment is disposed in the card slot, and the battery compartment is installed in the card slot by a fastening component.

In order to prevent the hook member from being deformed, preferably, the inner cover is provided with a reinforcing rib inside, and the reinforcing rib against the hook member prevents it from being caught by the first circuit board due to deformation.

In order to reinforce the strength of the hook member, preferably, the hook member extends outwardly with a reinforcing support rib.

In order to facilitate the passage of the guide piece out of the base, preferably, the base is provided with four pairs of outlet holes.

Compared with the prior art, the present invention has an advantage in that a cavity formed by the inner cover of the electric energy meter structure and the base is provided with a first circuit board and a second circuit board, and the base is provided with a support structure, the first circuit board and The second circuit board is arranged at a lower interval and fixedly connected to the support structure. The base is provided with a module assembly of the electrical and the transformer. The module assembly is provided with a connecting piece, and the guide piece passes out of the base, that is, by adding an electric meter. The height makes the internal space of the meter sufficient, and the relay and the transformer are integrated into one body to form a modular structure, so that the space inside the table can be fully utilized, so that the ANSI standard round table is compatible with the single-phase three-phase relay scheme, and the electric energy meter has a simple and reliable structure. It is easy to manufacture and low in cost, and can realize a phenotype and a combination of relay and manganese copper. The assembly is simple, the cost is low, and the company is convenient for production and stocking.

DRAWINGS

1 is a partial cross-sectional structural view of an embodiment of the present invention;

2 is a partial cross-sectional structural view showing the inside of the outer cover in the embodiment of the present invention;

3 is a partial cross-sectional structural view showing the inside of an inner cover according to an embodiment of the present invention;

Figure 4 is a longitudinal cross-sectional view showing an embodiment of the present invention;

Figure 5 is a schematic structural view of the inside of the inner cover in the embodiment of the present invention;

6 is a schematic structural view of an inner cover according to an embodiment of the present invention;

7 is a schematic structural view of another angle of an inner cover according to an embodiment of the present invention;

FIG. 8 is a schematic structural view of a base according to an embodiment of the present invention.

detailed description

The invention will be further described in detail below with reference to the embodiments of the drawings.

As shown in FIG. 1 to FIG. 8 , the ANSI standard round table of the embodiment of the present invention is compatible with the single-phase three-phase relay scheme electric energy meter structure, including the base 1, the inner cover 2, the outer cover 3, the first circuit board 21, and the second circuit board. twenty two;

Wherein, the inner cover 2 is covered on the base 1 and a cavity is formed therebetween, and the outer cover 3 is disposed outside the inner cover 2;

The first circuit board 21 and the second circuit board 22 are disposed in a cavity formed by the inner cover 2 and the base 1. The base 1 is provided with a support structure, and the first circuit board 21 and the second circuit board 22 are vertically spaced and fixed. The support structure is connected to the support structure, and the support structure has various structural forms, and may be an integrally formed support rod, or may be in the form of a detachably connected support rod, or may be a support frame. In the embodiment, the support structure includes The first pillar 12 has a second pillar 121. The top end of the second pillar 121 is provided with a guiding post 122. The first circuit board 21 is disposed on the first pillar 12. In this embodiment, the base 1 is disposed. A hooking member 13 is further provided. The hooking member 13 clamps the first circuit board 21 to the first pillar 12 to prevent it from being detached; the second circuit board 22 is disposed on the second pillar 121, and the second pillar 121 has a diameter ratio A pillar 12 has a small diameter, and the first circuit board 21 and the second circuit board 22 are provided with holes, and the second pillar 121 can pass through a hole in the first circuit board 21, so that the first circuit board 21 can fall on the first pillar 12 upper end, and the aperture of the second circuit board 22 has a smaller aperture Will stop at the second leg 121, thereby forming upper and lower layers of the circuit board, arranged so that the rationalization of the arrangement structure so that a sufficient space inside the meter, thereby enabling the relay copper and manganese as a two schemes together.

In order to realize a phenotype and both relay and manganese copper, the base 1 is provided with a module assembly 4 for electrical and transformers. The module assembly 4 is provided with a connecting piece 41, and the guiding piece 41 passes through the base 1 In addition, the inner cover 2 and the outer cover 3 are relatively common, and the height is increased, and the module assembly 4 of the electrical and transformer is matched, thereby realizing a phenotype and a variety of solutions.

In order to reduce the influence of the internal components of the round table, the base 1 is provided with a first flange 11 and the inner cover 2 is provided with a second flange 24, and the first flange 11 and the second flange 24 are connected by ultrasonic welding so as to The inner cover 2 is mounted on the base 1. In the embodiment, the ultrasonic welding portion is disposed on the edge of the base 1 and the inner cover 2, and the ultrasonic welding portion is protruded to the outer periphery of the case, and on the one hand, the welding is performed. The effect, on the other hand, reduces the damage to the PCB board inside the round table, and avoids the internal parts being affected by ultrasonic welding, thus ensuring the quality of the product.

The second circuit board 22 is provided with a programming controller 5, and the inner cover 2 is disposed above the programming controller 5 with a jack 51. The top cover 3 is provided with a programming button 71 above the jack 51, and the programming button 71 is connected. There is a dialing member 72, and the dialing member 72 is rotatably disposed on the support 7 of the outer cover 3. The dialing member 72 and the support base 7 are provided with a through hole, and the lead seal can be realized through the through hole to prevent the dial member 72 from rotating. .

As shown in FIG. 3 and FIG. 6 , the inner cover 2 is provided with a battery compartment card slot 23 and a battery compartment 6 is disposed in the card slot 23 . The battery compartment 6 is mounted in the card slot 23 by a snap member 61.

In order to prevent the hook member from being deformed, as shown in FIG. 7, the inner cover 2 is internally provided with a reinforcing rib 25, and the reinforcing rib 25 is pressed against the hook member 13 to prevent it from being caught by the first circuit board 21 due to deformation, as shown in FIG. 5 and As shown in FIG. 8, the hook member 13 extends outwardly with reinforcing support ribs 131. The reinforcing support ribs 131 have a substantially triangular cross section, and the presence of the reinforcing support ribs 131 increases the strength of the hook members 13.

As shown in FIG. 8, the base 1 is provided with four pairs of outlet holes 14 for facilitating the passage of the guide piece 41 out of the base 1. Since the internal structure of the general electric meter is limited by space, two pairs are arranged. The outlet holes 14 are sufficient, but in the embodiment, the outer cover and the inner cover are redesigned, and more components can be placed inside. In this embodiment, the electric meter is provided with four pairs, that is, eight outlet holes. 14.

Under the prior art, the ANSI round-face manganese bronze and relay scheme cannot be a phenotype, or a single- and three-phase round table cannot be used in a single phenotype. The assembly of the electric energy meter cover and the bottom case is screw-fixed, and the assembly is relatively cumbersome. Under such restrictions, the enterprise needs to open two kinds of molds for the cover, which is high in cost and inconvenient to produce and stock.

The structure of the electric energy meter provided by the embodiment can be completed. The reason why the prior art uses a set of structural components is not compatible with the relay and the manganese-copper solution, because the relay and the transformer occupy a large space, the ordinary manganese-copper solution has limited phenotype space, is incompatible, and cannot be limited by the ANSI standard size. The diameter of the round table is increased. Therefore, the present invention is inconvenient in diameter, increases the height, and combines the relay and the transformer to form a modular structure, so that the space inside the table can be fully utilized. Through the special design of the relevant parts, the two schemes of relay and manganese-copper are combined to solve the problem of space and height.

In this embodiment, a cover opening detection function is provided between the inner cover 2 and the outer cover 3, that is, the inner cover 2 is provided with a counting device. After the electric energy meter is installed, the outer cover 3 is internally mounted with a counting device. After the cover 3 is opened, the technical device will count, so that the setting, together with the programming button seal, can prevent the electricity stealing to a certain extent.

The round-table snap-fit assembly does not use screws to improve production efficiency and reduce labor costs; and solves the problem of IP54 dustproof and waterproof; it also adds programming buttons and sets the cover open cover detection function.

The scope of the present invention includes, but is not limited to, the above embodiments, and the scope of the present invention is defined by the claims, and any substitutions, modifications, and improvements which are obvious to those skilled in the art to which the present invention is made fall within the scope of the present invention. protected range.

The invention has the advantages of simple and reliable structure, convenient manufacturing and low cost, and can realize a phenotype and both relay and manganese copper, which is simple in assembly, low in cost, and convenient for the production and stocking of the enterprise.

Claims

An ANSI standard roundtable compatible with a single-phase three-phase relay scheme electric energy meter structure, comprising a base (1), an inner cover (2) disposed on the base (1), and a cover (3) disposed outside the inner cover (2) , characterized in that: the inner cover (2) and the base (1) formed in the cavity is provided with a first circuit board (21) and a second circuit board (22);

The base (1) is provided with a support structure, and the first circuit board (21) and the second circuit board (22) are vertically spaced apart and fixedly connected to the support structure;

The base (1) is provided with a module assembly (4) for electrical and transformers, the module assembly (4) is provided with a connecting piece (41) connected thereto, and the guiding piece (41) passes through the base (1) Outside.
The electric energy meter structure according to claim 1, wherein the support structure comprises a first pillar (12), and a top end of the first pillar (12) is provided with a second pillar (121), the second The top end of the pillar (121) is provided with a guiding post (122), the first circuit board (21) is disposed on the first pillar (12), and the second circuit board (22) is disposed on the second pillar (121) .
The electric energy meter structure according to claim 2, wherein said second pillar (121) has a smaller diameter than said first pillar (12).
The electric energy meter structure according to claim 3, wherein the base (1) is further provided with a hook member (13), the hook member (13) to the first circuit board (21) The first post (12) is jammed to prevent it from coming off.
The electric energy meter structure according to any one of claims 1 to 4, characterized in that: the second circuit board (22) is provided with a programming controller (5), and the inner cover (2) is located in the programming A top rod (51) is disposed directly above the controller (5), and a programming button (71) is disposed on the outer cover (3) above the jack (51), and the programming button (71) is connected with a toggle a member (72), the dial member (72) is rotatably disposed on a seat (7) of the outer cover (3), and the dial member (72) and the support (7) are provided with a fitting A through hole through which the lead seal can be implemented to prevent the toggle member (72) from rotating.
The electric energy meter structure according to any one of claims 1 to 4, characterized in that the base (1) is provided with a first flange (11), and the inner cover (2) is provided with a second flange ( 24), the first flange (11) and the second flange (24) are joined together by ultrasonic welding to mount the inner cover (2) to the base (1).
The electric energy meter structure according to any one of claims 1 to 4, characterized in that: the inner cover (2) is provided with a battery compartment card slot (23) and the battery compartment (6) is provided with a battery compartment (6) The battery compartment (6) is mounted in the card slot (23) by a snap member (61).
The electric energy meter structure according to claim 4, wherein the inner cover (2) is internally provided with a reinforcing rib (25), and the reinforcing rib (25) is prevented against the hook member (13) The first circuit board (21) cannot be caught because of the deformation.
The electric energy meter structure according to claim 8, characterized in that the hook member (13) extends outwardly with reinforcing support ribs (131).
The electric energy meter structure according to any one of claims 1 to 4, characterized in that: the base (1) is provided There are four pairs of outlet holes (14).