Electric energy meter module assembling structure

Abstract

The utility model belongs to the technical field of electric power communication equipment, and provides an electric energy meter module assembling structure which comprises a circuit board piece, an upper shell and a bottom shell. The bottom shell is provided with a cavity, the circuit board piece is arranged in the cavity, a positioning column is arranged in the cavity, one end of the positioning column penetrates through the circuit board piece, and a clamping hook part is arranged at one end of the positioning column; the upper shell is provided with a cavity opening of the cavity of the bottom shell, the upper shell is provided with a positioning hole matched with one end of the positioning column, and the positioning hole is provided with an avoiding groove matched with the clamping hook part. The clamping hook parts are arranged on the positioning columns and matched with the positioning holes and the avoiding grooves to form a positioning and fixing structure, so that the problems of high working hours and high screw cost caused by traditional screw self-assembly are solved, and meanwhile, the problem that an electric energy meter cannot be assembled due to large overall appearance size caused by abnormal matching of traditional outer side buckling positions is also solved; product quality is improved, process and labor cost is saved, and production efficiency is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of electric power communication equipment, and in particular relates to an electric energy meter module assembly structure. Background Art

[0002] The carrier module on the electricity meter is an indispensable part of the current smart electricity meter. It is mainly used for data communication, which facilitates power companies to detect and manage the electricity consumption of residential users.

[0003] 1. The currently commonly used limiting structure on the electric energy meter carrier module is to set positioning columns on the upper shell of the carrier module and the bottom shell. During assembly, the PCBA board, that is, the circuit board component, is first loaded on the positioning columns on the upper shell of the carrier module, and then combined with the positioning columns on the bottom shell for limiting. Because there is no unlimited fixed structure between the positioning columns, it is inconvenient to assemble and the production efficiency is low.

[0004] 2. Currently, there are two commonly used fixed structures for electric energy meter carrier modules:

[0005] 1. Screw locking fixation: After the carrier module is assembled on the PCBA board, it is fixed by locking screws. As the demand for carrier modules increases, this assembly structure and method consumes more man-hours, has low reliability, and is high in cost, making it unsuitable for mass production.

[0006] 2. Fixing with buckles on both sides: After the carrier module is assembled with the PCBA board, it is fixed by buckling the outer buckles of the upper and lower shells of the carrier module. Although this assembly structure and method are simple, they require high dimensional accuracy. When the hooks on the upper shell of the carrier module and the buckles on the lower shell do not match properly and cause interference, the hooks on the outer side of the upper shell of the carrier module will be lifted, increasing the outer size of the carrier module, resulting in an out-of-tolerance module dimension and interference with the module compartment on the power meter. This makes it difficult to assemble the module, wastes work hours for rework, and reduces mass production efficiency. Utility Model Content

[0007] In order to overcome the above-mentioned shortcomings of the prior art, the purpose of the present utility model is to provide an electric energy meter module assembly structure.

[0008] The technical solution adopted by the utility model to solve its technical problems is:

[0009] An electric energy meter module assembly structure includes a circuit board component, an upper shell and a bottom shell;

[0010] The bottom shell is provided with a cavity, the circuit board component is placed in the cavity, a positioning post is provided in the cavity, one end of the positioning post passes through the circuit board component, and one end of the positioning post is provided with a hook portion;

[0011] The upper shell is provided with a cavity opening of the cavity of the bottom shell, the upper shell is provided with a positioning hole matched with one end of the positioning column, and the positioning hole is provided with an avoidance groove matched with the hook part.

[0012] Preferably, the upper shell is provided with a positioning seat, the positioning hole is provided along the axial direction of the positioning seat, and the avoidance groove is provided on the side wall surface of the positioning seat and communicates with the positioning hole.

[0013] Preferably, there are two hook portions, which are symmetrically arranged with the axis of the positioning column as the center. The hook portion is a block structure arranged on the side wall surface of the positioning column and protruding outward, and the hook portion has a sloped guide surface.

[0014] Preferably, the hook portion is an elastic member, the hook portion is in a compressed state when it is in the positioning hole, and is in a natural state when it is in the avoidance groove.

[0015] Preferably, a reinforcing rib is further provided in the cavity of the bottom shell, one end of the reinforcing rib is connected to the positioning column, and the other end is connected to the inner wall surface of the cavity.

[0016] Preferably, a matching groove is provided on the inner wall surface of the cavity and at the cavity opening of the cavity, and the upper shell is provided with a positioning protrusion matching with the matching groove.

[0017] Preferably, the circuit board component is provided with pins, and the upper shell is provided with through holes corresponding to the positions of the pins.

[0018] Preferably, the upper shell is provided with a protective frame surrounding the through hole.

[0019] Preferably, the positioning posts are provided at the four corners of the cavity of the bottom shell.

[0020] Preferably, the straight line where the two hook portions on the positioning column are located is arranged toward the middle position of the cavity of the bottom shell.

[0021] Compared with the prior art, the beneficial effects of the present invention include:

[0022] The electric energy meter module assembly structure of the present application adopts a hook portion set on the positioning column, which cooperates with the positioning hole and the avoidance groove to form a positioning and fixing structure, avoiding the problems of high working hours and screw costs caused by traditional screw self-assembly. At the same time, it also avoids the problem of the overall external dimensions being too large to assemble the electric energy meter due to abnormalities in the traditional outer buckle fitting, thereby improving product quality, saving process and labor costs, and improving production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0024] Figure 1 It is a structural diagram of the present utility model.

[0025] Figure 2 It is a schematic diagram of the structural decomposition of the present utility model.

[0026] Figure 3 It is a cross-sectional view of the present utility model.

[0027] Figure 4 This is a structural diagram of the positioning column of the utility model.

[0028] Figure 5 It is a structural schematic diagram of the positioning seat of the utility model.

[0029] in:

[0030] 1-circuit board, 2-upper shell, 3-bottom shell, 4-cavity, 5-positioning column, 6-hook part, 7-positioning hole, 8-avoidance groove, 9-guide surface, 10-reinforcement rib, 11-matching groove, 12-positioning protrusion, 13-pin, 14-guard frame, 15-positioning seat. DETAILED DESCRIPTION

[0031] In order to more clearly understand the above-mentioned purposes, features and advantages of the present invention, the present invention is described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that, in the absence of conflict, the embodiments of this application and the features in the embodiments can be combined with each other. In the following description, many specific details are set forth in order to fully understand the present invention. The embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0032] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art in the art of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention.

[0033] Example:

[0034] like Figure 1-5As shown, this embodiment provides an electric energy meter module assembly structure, including a circuit board component 1, an upper shell 2 and a bottom shell 3;

[0035] The bottom shell 3 is provided with a cavity 4, the circuit board component 1 is placed in the cavity 4, a positioning post 5 is provided in the cavity 4, one end of the positioning post 5 passes through the circuit board component 1, and one end of the positioning post 5 is provided with a hook portion 6;

[0036] The upper shell 2 is provided with a cavity opening of the cavity 4 of the bottom shell 3. The upper shell 2 is provided with a positioning hole 7 matched with one end of the positioning column 5. The positioning hole 7 is provided with an avoidance groove 8 matched with the hook part 6.

[0037] The electric energy meter module assembly structure of this embodiment has a positioning column 5, which serves to position the circuit board component 1 in the cavity 4 of the bottom shell 3. At the same time, the bottom shell 3 and the upper shell 2 are connected by the positioning column 5 and the positioning hole 7, and the hook portion 6 cooperates with the avoidance groove 8 to achieve a snap-fit ​​fit, thereby realizing the connection between the bottom shell 3 and the upper shell 2. The overall structure is reasonably set up and the assembly process is convenient. Compared with the traditional screw fixing method, it saves the screw locking process, reduces the cost of screw parts and the cost of screw locking labor, reduces production costs, and improves production efficiency. At the same time, the snap-fit ​​structure of this embodiment is in the cavity 4 of the bottom shell 3, which can also avoid the problem that the carrier module is too large in size and cannot be assembled into an electric energy meter due to the assembly error of the traditional outer hook structure.

[0038] In this embodiment, the specific structure of the snap-fit ​​is as follows:

[0039] A positioning seat 15 is provided on the upper shell 2 . The positioning hole 7 is provided along the axial direction of the positioning seat 15 . The avoidance groove 8 is provided on the side wall surface of the positioning seat 15 and communicates with the positioning hole 7 .

[0040] In this embodiment, there are two hook portions 6 symmetrically arranged around the axis of the positioning post 5 . The hook portions 6 are block-shaped structures protruding outward and arranged on the sidewall of the positioning post 5 . The hook portions 6 have a sloped guide surface 9 .

[0041] Specifically, the hook portion 6 is an elastic member.

[0042] The snap-fit ​​principle is as follows:

[0043] First, one end of the positioning column 5 enters the positioning hole 7 of the positioning seat. When the hook portion 6 is in the positioning hole 7, the hook portion 6 is in a compressed state. One end of the positioning column 5 continues to enter until the hook portion 6 is in the avoidance groove 8. At this time, the shape of the hook portion 6 is restored to a natural state. At this time, the hook portion 6 is restored to a raised block structure and clamps the avoidance groove 8, completing the clamping fit between the positioning column 5 and the positioning seat. Because the hook portion 6 has a guide surface 9, it can ensure that the hook portion 6 enters the avoidance groove 8 more smoothly; the reverse operation can release the clamping fit between the positioning column 5 and the positioning seat.

[0044] In order to ensure the stability of the positioning column 5 structure, a reinforcing rib 10 is further provided in the cavity 4 of the bottom shell 3 . One end of the reinforcing rib 10 is connected to the positioning column 5 , and the other end is connected to the inner wall surface of the cavity 4 .

[0045] In order to ensure the stability of the cooperation between the upper shell 2 and the bottom shell 3, a cooperation groove 11 is provided on the inner wall surface of the cavity 4 and at the cavity mouth of the cavity 4, and the upper shell 2 is provided with a positioning protrusion 12 that cooperates with the cooperation groove 11.

[0046] In this embodiment, the circuit board component 1 is provided with pins 13, and the upper shell 2 is provided with through holes corresponding to the positions of the pins 13. A protective frame 14 is also provided on the upper shell 2 to surround the through holes. The protective frame 14 has a certain height and can protect the pins 13.

[0047] The specific arrangement of the positioning column 5 is as follows:

[0048] The positioning posts 5 are disposed at the four corners of the cavity 4 of the bottom shell 3 .

[0049] Specifically, the straight line where the two hook portions 6 on the positioning column 5 are located is arranged toward the middle position of the cavity 4 of the bottom shell 3 .

[0050] To sum up, the electric energy meter module assembly structure of this embodiment has a reasonable overall structural setting and a convenient assembly process. Compared with the traditional screw fixing method, it saves the screw locking process, reduces the cost of screw parts and the cost of screw locking labor, reduces production costs, and improves production efficiency. At the same time, the snap-fitting structure of this embodiment is in the cavity 4 of the bottom shell 3, which can also avoid the problem of the carrier module being too large in size and unable to be assembled into an electric energy meter due to the assembly error of the traditional outer hook structure.

[0051] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any form. Therefore, any modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. An electric energy meter module assembly structure, characterized in that: include: Circuit board components, upper shell and bottom shell; The bottom shell is provided with a cavity, the circuit board component is placed in the cavity, a positioning post is provided in the cavity, one end of the positioning post passes through the circuit board component, and one end of the positioning post is provided with a hook portion; The upper shell is provided with a cavity opening of the cavity of the bottom shell, the upper shell is provided with a positioning hole matched with one end of the positioning column, and the positioning hole is provided with an avoidance groove matched with the hook part.

2. The electric energy meter module assembly structure according to claim 1, characterized in that: The upper shell is provided with a positioning seat, the positioning hole is arranged along the axial direction of the positioning seat, and the avoidance groove is arranged on the side wall surface of the positioning seat and communicates with the positioning hole.

3. The electric energy meter module assembly structure according to claim 2, characterized in that: There are two hook portions, which are symmetrically arranged with the axis of the positioning column as the center. The hook portions are block structures arranged on the side wall surface of the positioning column and protruding outward, and the hook portions have a sloped guide surface.

4. The electric energy meter module assembly structure according to claim 3, characterized in that: The hook portion is an elastic member. The hook portion is in a compressed state when located at the positioning hole, and is in a natural state when located at the avoidance groove.

5. The electric energy meter module assembly structure according to claim 1, characterized in that: A reinforcing rib is further provided in the cavity of the bottom shell, one end of the reinforcing rib is connected to the positioning column, and the other end is connected to the inner wall surface of the cavity.

6. The electric energy meter module assembly structure according to claim 1, characterized in that: A matching groove is further provided on the inner wall surface of the cavity and at the cavity opening of the cavity, and a positioning protrusion matching with the matching groove is provided on the upper shell.

7. The electric energy meter module assembly structure according to claim 1, characterized in that: The circuit board component is provided with pins, and the upper shell is provided with through holes corresponding to the positions of the pins.

8. The electric energy meter module assembly structure according to claim 7, characterized in that: The upper shell is provided with a protective frame surrounding the through hole.

9. The electric energy meter module assembly structure according to claim 3, characterized in that: The positioning posts are arranged at the four corners of the cavity of the bottom shell.

10. The electric energy meter module assembly structure according to claim 9, characterized in that: The straight line where the two hook portions on the positioning column are located is arranged toward the middle position of the cavity of the bottom shell.

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