Electric energy meter convenient to assemble

Abstract

The utility model provides an electric energy meter convenient to assemble. The electric energy meter comprises a rear shell assembly, a front shell assembly, a wire holder assembly and a mutual inductor assembly. The wire holder assembly is fixed to the inner side of the lower end of the rear shell assembly, the mutual inductor assembly is connected to the inner wall of the rear side of the rear shell assembly, the mutual inductor assembly and the wire holder assembly are fixed and electrically connected, and the front shell assembly is fixed to the front side of the rear shell assembly. The electric energy meter further comprises a supporting plate. The mutual inductor assembly is pre-fixed to the supporting plate, the left end and the right end of the supporting plate are each provided with a bend, the two bends extend from back to front, and the two bends are clamped with the rear shell assembly in a matched mode so as to lock the supporting plate and the rear shell assembly; according to the utility model, convenience can be brought to the assembling process of the mutual inductor assembly and the rear shell assembly.

Description

Technical Field

[0001] This utility model relates to the field of electricity meter technology, and more specifically, to an electricity meter that is easy to assemble. Background Technology

[0002] An electricity meter is a device used to measure electricity consumption. Currently, electricity meters on the market include a rear housing assembly, a front housing assembly, a terminal block assembly, and a current transformer assembly. The terminal block assembly is fixed to the inner side of the lower end of the rear housing assembly, and the current transformer assembly is connected to the inner rear wall of the rear housing assembly. The current transformer assembly and the terminal block assembly are fixed and electrically connected, and the front housing assembly is fixed to the front side of the rear housing assembly. However, in the existing electricity meter structure, when assembling the current transformer assembly and the rear housing assembly, the current transformer assembly is directly assembled to the rear housing assembly from the inside. Since the assembly space inside the rear housing assembly is small, this results in the disadvantage of inconvenient assembly of the current transformer assembly and the rear housing assembly. Utility Model Content

[0003] The technical problem to be solved by this utility model is to provide an energy meter that is easy to assemble, which has the advantage of convenient assembly of the current transformer assembly and the back shell assembly.

[0004] This utility model provides an easy-to-assemble electricity meter, including a rear housing assembly, a front housing assembly, a terminal block assembly, and a current transformer assembly. The terminal block assembly is fixed to the inner side of the lower end of the rear housing assembly, and the current transformer assembly is connected to the inner rear wall of the rear housing assembly. The current transformer assembly is fixed and electrically connected to the terminal block assembly, and the front housing assembly is fixed to the front side of the rear housing assembly. The electricity meter also includes a support plate. The current transformer assembly is pre-fixed on the support plate, and both ends of the support plate are provided with bends. Both bends extend from back to front, and both bends engage with the rear housing assembly to lock the support plate and the rear housing assembly.

[0005] By adopting this structure, the current transformer assembly can be pre-fixed to the support plate, and the fixing process between the current transformer assembly and the support plate can be completed outside the rear housing assembly. Then, the support plate and the current transformer assembly can be snapped into the interior of the rear housing assembly. In other words, the fixing process between the current transformer assembly and the rear housing assembly is not affected by the internal space of the rear housing assembly, which can facilitate the assembly process of the current transformer assembly and the rear housing assembly.

[0006] In one possible implementation, each bend is provided with a locking hole; two symmetrical locking hooks are provided on the rear inner wall of the rear housing assembly, with the two hooks located on the outer side of one of the bends and engaging with the locking holes on the corresponding sides to lock the support plate and the rear housing assembly; with this structure, after the two hooks engage with the two locking holes, the support plate can be reliably and conveniently assembled on the rear inner wall of the rear housing assembly, that is, the current transformer assembly can be conveniently and reliably assembled on the rear inner wall of the rear housing assembly.

[0007] In one possible implementation, a reinforcing rib is provided on the outer side wall of each hook, and each reinforcing rib is integrally connected to the rear inner wall of the rear shell assembly and the outer side wall of the corresponding hook. By adopting this structure, the structural strength of the hook can be improved under the action of the reinforcing rib to avoid the hook breaking. In addition, under the action of the reinforcing rib, the firmness and reliability of the hook and the locking hole can be improved, that is, the reliability and firmness of the support plate and the rear shell assembly can be improved.

[0008] In one possible implementation, a number of positioning posts are provided on the rear inner wall of the rear shell assembly, and positioning holes corresponding to the positioning posts are provided on the support plate. Each positioning post is engaged with the positioning hole at the corresponding position. By adopting this structure, the vertical and lateral positioning of the support plate and the rear shell assembly can be further limited by the engagement of the positioning posts and positioning holes, thereby further improving the reliability and stability of the support plate and the rear shell assembly.

[0009] In one possible implementation, several positioning posts are spaced apart around the circumferential direction of the support plate. By adopting this structure, the positioning structure formed by the insertion of each positioning post and each positioning hole is distributed around the circumferential direction of the support plate, thereby further realizing the vertical and lateral positioning of the support plate and the rear shell assembly, that is, further improving the reliability and stability of the support plate and the rear shell assembly. Attached Figure Description

[0010] Figure 1 This is a schematic diagram of the three-dimensional structure of an electricity meter;

[0011] Figure 2 A three-dimensional structural diagram of an electricity meter after the front casing assembly has been removed.

[0012] Figure 3 A partial exploded 3D structural diagram of an electricity meter after the front casing assembly has been removed.

[0013] Figure 4 This is a three-dimensional structural diagram of the junction box assembly and the rear housing assembly after assembly. Detailed Implementation

[0014] First, those skilled in the art should understand that these embodiments are merely used to explain the technical principles of the embodiments of this application and are not intended to limit the scope of protection of the embodiments of this application. Those skilled in the art can make adjustments as needed to adapt to specific application scenarios.

[0015] In the description of the embodiments of this application, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of this application based on the specific circumstances.

[0016] In the embodiments of this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0017] The present application will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0018] See Figure 1-4 As shown in the figure, this application discloses an easy-to-assemble electricity meter, including a rear housing assembly 1, a front housing assembly 2, a terminal block assembly 3, and a current transformer assembly 4; the terminal block assembly 3 is fixed to the inner side of the lower end of the rear housing assembly 1, the current transformer assembly 4 is connected to the inner rear wall of the rear housing assembly 1, the current transformer assembly 4 is fixed and electrically connected to the terminal block assembly 3, and the front housing assembly 2 is fixed to the front side of the rear housing assembly 1; the electricity meter also includes a support plate 5; the current transformer assembly 4 is pre-fixed on the support plate 5, and both ends of the support plate 5 are provided with bends 51, both bends 51 extend from back to front, and both bends 51 cooperate with the rear housing assembly 1 to lock the support plate 5 and the rear housing assembly 1.

[0019] Each bend 51 is provided with a locking hole 511; the rear inner wall of the rear housing assembly 1 is provided with two symmetrical locking hooks 11, which are located on the outside of one of the bends 51 and engage with the corresponding locking hole 511 to lock the support plate 5 and the rear housing assembly 1; with this structure, after the two locking hooks engage with the two locking holes, the support plate can be reliably and conveniently assembled on the rear inner wall of the rear housing assembly, that is, the current transformer assembly can be conveniently and reliably assembled on the rear inner wall of the rear housing assembly.

[0020] Each hook 11 has a reinforcing rib 12 on its outer side wall. Each reinforcing rib 12 is integrally connected to the rear inner wall of the rear shell assembly 1 and the outer side wall of the corresponding hook 11. By adopting this structure, the structural strength of the hook can be improved under the action of the reinforcing rib to avoid the hook breaking. In addition, under the action of the reinforcing rib, the firmness and reliability of the hook and the locking hole can be improved, that is, the reliability and firmness of the support plate and the rear shell assembly can be improved.

[0021] A number of positioning posts 13 are provided on the rear inner wall of the rear shell assembly 1, and positioning holes 52 corresponding to the positioning posts 13 are provided on the support plate 5. Each positioning post 13 is engaged with the positioning hole 52 at the corresponding position. By adopting this structure, the vertical and lateral positioning of the support plate and the rear shell assembly can be further limited by the engagement of the positioning posts and positioning holes, thereby further improving the reliability and stability of the support plate and the rear shell assembly.

[0022] Several positioning posts 13 are spaced apart around the support plate 5 in the circumferential direction. By adopting this structure, the positioning structure formed by each positioning post and each positioning hole can be distributed around the support plate in the circumferential direction, thereby further realizing the vertical and lateral positioning of the support plate and the rear shell assembly, that is, further improving the reliability and stability of the support plate and the rear shell assembly.

[0023] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. An easily assembled electricity meter, comprising a rear housing assembly (1), a front housing assembly (2), a terminal block assembly (3), and a current transformer assembly (4); the terminal block assembly (3) is fixed to the inner side of the lower end of the rear housing assembly (1), the current transformer assembly (4) is connected to the inner rear wall of the rear housing assembly (1), the current transformer assembly (4) is fixed and electrically connected to the terminal block assembly (3), and the front housing assembly (2) is fixed to the front side of the rear housing assembly (1); characterized in that: The electricity meter also includes a support plate (5); the transformer assembly (4) is pre-fixed on the support plate (5), and both ends of the support plate (5) are provided with bends (51), both bends (51) extend from back to front, and both bends (51) cooperate with the rear shell assembly (1) to lock the support plate (5) and the rear shell assembly (1).

2. The easy-to-assemble electricity meter according to claim 1, characterized in that: Each of the bends (51) is provided with a locking hole (511); the rear inner wall of the rear shell assembly (1) is provided with two symmetrical hooks (11), the two hooks (11) are respectively located on the outside of one of the bends (51) and engage with the corresponding locking hole (511) to lock the support plate (5) and the rear shell assembly (1).

3. The easy-to-assemble electricity meter according to claim 2, characterized in that: Each of the hooks (11) is provided with a reinforcing rib (12) on its outer side wall. Each of the reinforcing ribs (12) is connected to the rear inner wall of the rear shell assembly (1) and the outer side wall of the hook (11) on the corresponding side.

4. The easy-to-assemble electricity meter according to any one of claims 1-3, characterized in that: The rear inner wall of the rear shell assembly (1) is provided with a number of positioning posts (13), and the support plate (5) is provided with positioning holes (52) corresponding to the number of positioning posts (13). Each positioning post (13) is engaged with the positioning hole (52) at the corresponding position.

5. The easy-to-assemble electricity meter according to claim 4, characterized in that: Several positioning posts (13) are spaced apart around the support plate (5) in the circumferential direction.

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