CN221010405U - Circuit board module and electric energy meter - Google Patents

Abstract

The application provides a circuit board module and an electric energy meter, and belongs to the technical field of ammeter instruments. The first circuit board and the second circuit board in the circuit board module are intersected with the third circuit board respectively. The first installation part on the first circuit board is connected with the first matching part on the third circuit board, the second installation part on the second circuit board is connected with the second matching part on the third circuit board, and the third installation part on the second circuit board is connected with the third matching part on the third circuit board. The second circuit board is electrically connected with the first circuit board, one of the second circuit board and the first circuit board is provided with a first bonding pad, a second bonding pad is arranged at a position, opposite to the first bonding pad, of the third circuit board, and the first bonding pad is welded with the second bonding pad. The application can simplify the mounting and dismounting procedures of the circuit board, and is convenient for improving the assembly and dismounting efficiency of the electric energy meter.

Description

Circuit board module and electric energy meter

Technical Field

The application relates to the technical field of ammeter instruments, in particular to a circuit board module and an electric energy meter.

Background

The electric energy meter is a meter for measuring electric energy, also called an electric meter or a kilowatt hour meter, etc. The existing electric energy meter comprises a wall-mounted electric energy meter and a guide rail type electric energy meter, a plurality of circuit boards are usually arranged in a shell of the electric energy meter, and different components can be arranged on the circuit boards to achieve different functions.

However, in the prior art, the assembly and disassembly processes of the circuit board in the housing are numerous, resulting in lower assembly and disassembly efficiency of the electric energy meter.

Disclosure of utility model

In view of the above problems, embodiments of the present application provide a circuit board module and an electric energy meter, which can simplify the mounting and dismounting procedures of the circuit board, and facilitate improving the assembly and disassembly efficiency of the electric energy meter.

In a first aspect of an embodiment of the present application, a circuit board module is provided and applied to an electric energy meter, where the circuit board module includes a first circuit board, a second circuit board and a third circuit board. The first position of first circuit board is provided with first installation department, and the second circuit board is connected with first circuit board electricity, and the second position of second circuit board is provided with second installation department and third installation department, and one of second circuit board and first circuit board is provided with first pad. The first circuit board and the second circuit board intersect with the third circuit board, respectively. The position of the third circuit board opposite to the first installation part is provided with a first matching part, the position of the third circuit board opposite to the second installation part is provided with a second matching part, the position of the third circuit board opposite to the third installation part is provided with a third matching part, and the position of the third circuit board opposite to the first bonding pad is provided with a second bonding pad.

The first installation department is connected with first cooperation portion, and the second installation department is connected with the second cooperation portion, and the third installation department is connected with the third cooperation portion, and first pad and second pad welding.

Through above-mentioned scheme, under the mechanically fixed and electrically connected condition of first circuit board, second circuit board and third circuit board, first circuit board, second circuit board and third circuit board can be modularized, form the circuit board module. When a plurality of circuit boards are required to be installed in the shell, only the circuit board module is required to be integrally arranged in the shell, one circuit board in the circuit board module is connected with the shell, the circuit boards can be installed and fixed in the shell, the circuit boards are not required to be connected with the shell one by one, the installation procedure of the circuit boards in the shell is simplified, and the assembly efficiency of the electric energy meter is convenient to improve.

Correspondingly, when a plurality of circuit boards are detached from the shell, the circuit boards can be detached from the shell only by detaching one circuit board connected with the shell, so that the procedure of detaching the circuit boards from the shell is simplified, and the detaching efficiency of the electric energy meter is improved conveniently.

In some embodiments, a side of the first circuit board facing the third circuit board is provided with a first cutting, and the first mounting portion is configured as the first cutting. The third circuit board is provided with a first slot at a position opposite to the first cutting, and the first matching part is configured as the first slot. The first cutting is inserted into the first slot.

Through the scheme, the first cutting is spliced with the first slot, so that the mechanical connection between the first circuit board and the third circuit board can be realized. The connecting mode is simple and easy to operate, screws are not required to be screwed into the first circuit board and the third circuit board by means of tools such as screwdrivers to fix the first circuit board and the third circuit board, the number of used parts can be reduced, labor and working procedures during installation are saved, and the mechanical fixing efficiency of the first circuit board and the third circuit board is improved conveniently. Accordingly, the removal efficiency of the first and third circuit boards can also be improved.

In some embodiments, a side of the second circuit board facing the third circuit board is provided with a second slot, the second slot includes a first slot wall and a second slot wall opposite to each other in the first direction, the second mounting portion is configured as the first slot wall, and the third mounting portion is configured as the second slot wall. The third circuit board comprises a first side surface and a second side surface which are opposite in position in the first direction, the second matching part is configured as the first side surface, and the third matching part is configured as the second side surface. The third circuit board is inserted into the second slot, the first side surface is abutted with the first slot wall, and the second side surface is abutted with the second slot wall.

Through the scheme, the third circuit board is inserted into the second slot, so that the mechanical connection between the second circuit board and the third circuit board can be realized. In addition, the first side surface is abutted with the first groove wall, and the second side surface is abutted with the second groove wall, so that the possibility that the third circuit board slips from the second slot can be reduced, and the reliability of mechanical fixation between the second circuit board and the third circuit board is improved.

In some embodiments, the first side is connected with a first clamping block and a second clamping block which are spaced from each other, a third slot is formed between the first clamping block, the second clamping block and the first side, and the second matching part is further configured as the third slot. The second circuit board is inserted into the third slot at a position close to the first slot wall in the first direction, one side of the second circuit board facing the first clamping block is abutted with the first clamping block, one side of the second circuit board facing the second clamping block is abutted with the second clamping block, and the second mounting part is further configured as a position close to the first slot wall in the first direction.

Through the scheme, in the process that the third circuit board is inserted into the second slot, the second circuit board is inserted into the third slot at a position close to the first slot wall in the first direction, so that the possibility that the third circuit board shakes in the first direction relative to the second circuit board can be reduced through the limitation of the first slot wall and the second slot wall, the possibility that the second circuit board shakes in the third direction relative to the third circuit board can be reduced through the limitation of the slot wall of the third slot, and the mechanical connection between the first circuit board and the third circuit board can be more reliable and stable.

In some embodiments, the first slot is a groove provided in a side of the third circuit board. Or the first slot is a through slot arranged in the third circuit board.

In some embodiments, a first connection is formed between the first mounting portion and the first mating portion, a second connection is formed between the second mounting portion and the second mating portion, a third connection is formed between the third mounting portion and the third mating portion, and the first connection, the second connection, and the third connection are distributed in a triangular shape.

Through the scheme, the first connecting part, the second connecting part and the third connecting part can mechanically fix the first circuit board, the second circuit board and the third circuit board from different positions. More importantly, as the triangle is stable, the first connecting part, the second connecting part and the third connecting part are distributed in a triangle shape, so that the stability of mechanical connection of the first circuit board, the second circuit board and the third circuit board can be improved, and the stability of the whole structure of the circuit board module can be improved conveniently.

In some embodiments, the first circuit board and the second circuit board are disposed at intervals, and the first circuit board and the second circuit board are electrically connected through pins or patch cords.

Through the scheme, the functional integrity of the circuit board module is convenient to guarantee.

In some embodiments, the first circuit board is substantially parallel to the second circuit board, the first circuit board and the second circuit board are substantially perpendicular to the third circuit board, and the first circuit board and the second circuit board are located on the same side of the third circuit board.

Through above-mentioned scheme, first circuit board and second circuit board sharing third circuit board homonymy space, and can not occupy the space of the different sides of third circuit board respectively, be convenient for with circuit board module miniaturization to be convenient for reduce the occupation of circuit board module to the space in the electric energy watchcase. In addition, so set up and make the first circuit board keep away from the distance between one side of third circuit board and the one side that the third circuit board was kept away from to the second circuit board less, be convenient for save the material use amount of contact pin or the plug wire that is used for keeping away from one side that the third circuit board was kept away from to the first circuit board and one side that the third circuit board was kept away from to the second circuit board.

In a second aspect of the embodiment of the application, an electric energy meter is provided, which comprises a shell and the circuit board module of the first aspect, wherein the circuit board module is positioned in the shell, and the second circuit board is connected with the shell through screws.

The foregoing description is only an overview of the technical solutions of the embodiments of the present application, and may be implemented according to the content of the specification, so that the technical means of the embodiments of the present application can be more clearly understood, and the following specific embodiments of the present application are given for clarity and understanding.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present application, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic structural diagram of a circuit board module according to an embodiment of the present application.

Fig. 2 is a schematic structural diagram of a first circuit board according to an embodiment of the present application.

Fig. 3 is a schematic structural diagram of a second circuit board according to an embodiment of the present application.

Fig. 4 is a schematic structural diagram of a third circuit board according to an embodiment of the present application.

Fig. 5 is a schematic structural diagram of another third circuit board according to an embodiment of the present application.

Reference numerals illustrate:

100. a first circuit board; 110. a first mounting portion; 120. a first slip;

200. A second circuit board; 210. a second mounting portion; 220. a third mounting portion; 230. a second slot; 231. a first groove wall; 232. a second groove wall;

300. A third circuit board; 310. a first mating portion; 320. a second mating portion; 330. a third mating portion; 340. a first slot; 350. a first side; 351. a first clamping block; 352. a second clamping block; 360. a second side; 370. a third slot;

400. A first bonding pad; 500. a second bonding pad; OX, first direction; OY, second direction; OZ, third direction.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present application more apparent, the technical solutions of the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application, and it is apparent that the described embodiments are some embodiments of the present application, but not all embodiments of the present application. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs; the terminology used in the description of the applications herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application; the terms "comprising" and "having" and any variations thereof in the description and claims of the application and in the description of the drawings are intended to cover a non-exclusive inclusion.

Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment may be included in at least one embodiment of the application. The appearances of the phrase "an embodiment" in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. Those of skill in the art will explicitly and implicitly appreciate that the embodiments described herein may be combined with other embodiments.

The azimuth words appearing in the following description are all directions shown in the drawings, and do not limit the specific structures of the circuit board module and the electric energy meter of the application. For example, in the description of the present application, the terms "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate an azimuth or a positional relationship based on that shown in the drawings, and are merely for convenience of describing the present application and simplifying the description, and do not indicate or imply that the apparatus or element to be referred to must have a specific azimuth, be constructed and operated in a specific azimuth, and thus should not be construed as limiting the present application.

Further, expressions such as OX, OY, and OZ directions for explaining the directions of indication of the operations and the construction of the respective members of the wiring board module and the electric energy meter of the present embodiment are not absolute but relative, and although these indications are appropriate when the respective members of the wiring board module and the electric energy meter are in the positions shown in the drawings, these directions should be interpreted differently when these positions are changed to correspond to the changes.

Furthermore, the terms first, second and the like in the description and in the claims or in the above-described figures, are used for distinguishing between different objects and not for describing a particular sequential order, and may be used to improve one or more of these features either explicitly or implicitly.

In the description of the present application, unless otherwise indicated, the meaning of "plurality" means two or more (including two), and similarly, "plural sets" means two or more (including two).

In the description of the present application, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "coupled" are to be construed broadly, e.g., as a "connected" or "coupled" of a mechanical structure may refer to a physical connection, e.g., as a fixed connection, e.g., via a fastener, such as a screw, bolt, or other fastener; the physical connection may also be a detachable connection, such as a snap-fit or snap-fit connection; the physical connection may also be an integral connection, such as a welded, glued or integrally formed connection. "connected" or "connected" of circuit structures may refer to physical connection, electrical connection or signal connection, for example, direct connection, i.e. physical connection, or indirect connection through at least one element in the middle, so long as circuit communication is achieved, or internal communication between two elements; signal connection may refer to signal connection through a medium such as radio waves, in addition to signal connection through a circuit. The specific meaning of the above terms in the present application will be understood in specific cases by those of ordinary skill in the art.

In order to enable those skilled in the art to better understand the scheme of the present application, the electric energy meter provided by the embodiment of the present application is briefly described below.

The electric energy meter comprises a shell and a circuit board module. The circuit board module is located in the shell, and a second circuit board in the circuit board module is connected with the shell through screws.

The housing includes a base and a cover coupled to each other. The base is provided with a containing cavity, the circuit board module is positioned in the containing cavity, and the circuit board module is covered by the cover shell and is fixedly arranged on the base.

The circuit board module at least comprises a first circuit board, a second circuit board and a third circuit board, wherein the first circuit board is close to the housing, and the second circuit board is close to the base. The specific structure of the circuit board module will be described in the following embodiments, which are not described in detail herein.

The cover shell and the second circuit board can be provided with through holes, the base can be provided with threaded holes, after the circuit board module is integrally arranged in the base, the cover shell can be covered on the base, then the end parts of the screws sequentially penetrate through the through holes in the cover shell and the through holes in the second circuit board and then extend into the threaded holes in the base, and the screws are in threaded connection with the threaded holes, so that the circuit board module is fixedly installed in the shell.

In addition to the above-described fixing of the entire circuit board module in the housing by fixing the second circuit board to the base, in practice, the fixing of the entire circuit board module in the housing may be achieved by fixing the first circuit board to the base or by fixing the third circuit board to the base or the cover, which is not limited in the embodiment of the present application.

The electric energy meter provided by the embodiment of the application is characterized in that a circuit board in the electric energy meter is modularized to form a circuit board module. When the circuit board is required to be installed in the shell, the circuit board module is only required to be integrally arranged in the shell, one circuit board in the circuit board module is connected with the shell, so that the circuit boards can be installed and fixed in the shell, the circuit boards are not required to be connected with the shell one by one, the installation procedure of the circuit boards in the shell is simplified, and the assembly efficiency of the electric energy meter is improved conveniently. Correspondingly, when a plurality of circuit boards are detached from the shell, the circuit boards can be detached from the shell only by detaching one circuit board connected with the shell, so that the procedure of detaching the circuit boards from the shell is simplified, and the detaching efficiency of the electric energy meter is improved conveniently.

The circuit board module in the embodiment of the application will be clearly and completely described with reference to the accompanying drawings.

Fig. 1 is a schematic structural view of a circuit board module according to an embodiment of the present application, fig. 2 is a schematic structural view of a first circuit board 100 according to an embodiment of the present application, fig. 3 is a schematic structural view of a second circuit board 200 according to an embodiment of the present application, and fig. 4 is a schematic structural view of a third circuit board 300 according to an embodiment of the present application, where the circuit board module is applied to an electric energy meter, and as shown in fig. 1 to 4, the circuit board module includes the first circuit board 100, the second circuit board 200 and the third circuit board 300.

The first circuit board 100 is provided at a first portion thereof with a first mounting portion 110, the second circuit board 200 is electrically connected with the first circuit board 100, the second portion of the second circuit board 200 is provided with a second mounting portion 210 and a third mounting portion 220, and one of the second circuit board 200 and the first circuit board 100 is provided with a first pad 400. The first wiring board 100 and the second wiring board 200 intersect the third wiring board 300, respectively. The third circuit board 300 is provided with a first fitting portion 310 at a position opposite to the first mounting portion 110, a second fitting portion 320 at a position opposite to the second mounting portion 210 of the third circuit board 300, a third fitting portion 330 at a position opposite to the third mounting portion 220 of the third circuit board 300, and a second pad 500 at a position opposite to the first pad 400 of the third circuit board 300.

The first mounting portion 110 is connected to the first fitting portion 310, the second mounting portion 210 is connected to the second fitting portion 320, the third mounting portion 220 is connected to the third fitting portion 330, and the first pad 400 is soldered to the second pad 500.

Different components may be disposed on the first circuit board 100, the second circuit board 200, and the third circuit board 300 to implement different functions such as detection or measurement.

The first and second circuit boards 100 and 200 are disposed at a distance, and the first and second circuit boards 100 and 200 each intersect the third circuit board 300. Illustratively, in some possible cases, the first circuit board 100 may be substantially parallel to the second circuit board 200, and the first circuit board 100 and the second circuit board 200 may be substantially perpendicular to the third circuit board 300.

The first circuit board 100 and the second circuit board 200 are substantially parallel, which means that an angle between the first circuit board 100 and the second circuit board 200 is approximately equal to 0 degrees, for example, an angle between the first circuit board 100 and the second circuit board 200 may be 2 degrees or 4 degrees, which is not limited in the embodiment of the present application.

The first circuit board 100 and the second circuit board 200 are substantially perpendicular to the third circuit board 300, and refer to that the first circuit board 100 and the second circuit board 200 respectively have an included angle approximately equal to 90 degrees with the third circuit board 300, for example, the included angle between the first circuit board 100 and the third circuit board 300 may be 85 degrees, 88 degrees, 91 degrees, etc., and the included angle between the second circuit board 200 and the third circuit board 300 may be 88 degrees, 89 degrees, 91 degrees, etc., which is not limited in the embodiment of the present application.

The first portion may be a side of the first circuit board 100 facing the third circuit board 300, and the second portion may be a side of the second circuit board 200 facing the third circuit board 300. The first mounting portion 110, the second mounting portion 210, and the third mounting portion 220 may have the same structure or may have different structures, which is not limited in the embodiment of the present application.

In the case where the first pad 400 is disposed on the first circuit board 100, the first pad 400 may be disposed at a location of the first circuit board 100 close to the third circuit board 300. Similarly, in the case where the first pad 400 is disposed on the second circuit board 200, the first pad 400 may be disposed on a portion of the second circuit board 200 close to the third circuit board 300. Accordingly, the second pad 500 may be disposed at a position of the third wiring board 300 close to the first pad 400. In this way, it is possible to facilitate electrical connection between the first wiring board 100 and the third wiring board 300 by soldering the first pad 400 and the second pad 500, or electrical connection between the second wiring board 200 and the third wiring board 300.

The number of the first pads 400 and the number of the second pads 500 may be plural, and the plural first pads 400 and the plural second pads 500 have a one-to-one correspondence. The plurality of first pads 400 each have a bonding relationship with a corresponding second pad 500.

In order to meet the electrical gap requirement, in the case where the first circuit board 100 is electrically connected to the third circuit board 300 on the side close to the third circuit board 300 or the second circuit board 200 is electrically connected to the third circuit board 300 on the side close to the third circuit board 300, the electrical connection position between the first circuit board 100 and the second circuit board 200 may be set at a position of the first circuit board 100 away from the third circuit board 300 and a position of the second circuit board 200 away from the third circuit board 300.

Illustratively, the portion of the first circuit board 100 away from the third circuit board 300 and the portion of the second circuit board 200 away from the third circuit board 300 may be electrically connected by a pin or a patch cord. Or the first circuit board 100 and the second circuit board 200 may be electrically connected by other connection methods, which is not limited in the embodiment of the present application.

The first mounting portion 110 is adapted to the first mating portion 310, the second mounting portion 210 is adapted to the second mating portion 320, and the third mounting portion 220 is adapted to the third mating portion 330. The first mounting portion 110 and the first mating portion 310 may be connected by abutting, plugging, or clamping the two, so long as the mechanical fixation between the first circuit board 100 and the third circuit board 300 can be achieved. Similarly, the second mounting portion 210 may be connected to the second mating portion 320 by abutting, inserting, or clamping the two, and the third mounting portion 220 may be connected to the third mating portion 330 by abutting, inserting, or clamping the two, so as to achieve mechanical fixation between the second circuit board 200 and the third circuit board 300.

In summary, the first mounting portion 110 is connected to the first mating portion 310, so that the first circuit board 100 and the third circuit board 300 can be mechanically fixed. The second mounting portion 210 is connected to the second fitting portion 320, and the third mounting portion 220 is connected to the third fitting portion 330, so that mechanical fixation between the second circuit board 200 and the third circuit board 300 can be achieved. In this way, mechanical fixation between the first wiring board 100, the second wiring board 200, and the third wiring board 300 can be achieved. Further, the first wiring board 100 and the second wiring board 200 are electrically connected, and one of the first wiring board 100 and the second wiring board 200 is electrically connected to the third wiring board 300, whereby the electrical connection between the first wiring board 100, the second wiring board 200, and the third wiring board 300 can be achieved.

In the case where the first, second and third circuit boards 100, 200 and 300 are mechanically fixed and electrically connected, the first, second and third circuit boards 100, 200 and 300 may be modularized to form a circuit board module. When a plurality of circuit boards are required to be installed in the shell, only the circuit board module is required to be integrally arranged in the shell, one circuit board in the circuit board module is connected with the shell, the circuit boards can be installed and fixed in the shell, the circuit boards are not required to be connected with the shell one by one, the installation procedure of the circuit boards in the shell is simplified, and the assembly efficiency of the electric energy meter is convenient to improve.

Correspondingly, when a plurality of circuit boards are detached from the shell, the circuit boards can be detached from the shell only by detaching one circuit board connected with the shell, so that the procedure of detaching the circuit boards from the shell is simplified, and the detaching efficiency of the electric energy meter is improved conveniently.

It should be noted that, the circuit board module provided in the embodiment of the present application may include not only three circuit boards, i.e., the first circuit board 100, the second circuit board 200, and the third circuit board 300, but also more than four circuit boards. Regardless of the number of circuit boards, the modularization of the mechanical connection mode and the electrical connection mode between the first circuit board 100, the second circuit board 200 and the third circuit board 300 in the circuit board module provided by the embodiment of the application can be realized, and the number of the circuit boards is not limited.

Referring to fig. 1, 2 and 4, in some embodiments, a side of the first circuit board 100 facing the third circuit board 300 may be provided with a first cutting 120, and the first mounting portion 110 is configured as the first cutting 120. The third circuit board 300 may be provided with a first slot 340 at a position opposite to the first slip 120, and the first mating portion 310 is configured as the first slot 340. The first cutting 120 is inserted into the first slot 340.

The first cutting 120 may have any shape such as a plate shape or a column shape. The first cutting 120 may be integrally formed on the side of the first circuit board 100 facing the third circuit board 300, or the first cutting 120 may be connected with the first circuit board 100 by plugging or snap connection after being separately formed.

The first slot 340 is adapted to the first slip 120. Illustratively, in the case where the first cutting 120 is inserted into the first slot 340, the first cutting 120 may be in contact with the slot wall of the first slot 340 to reduce the possibility of the first cutting 120 slipping out of the first slot 340, and increase the insertion stability between the first cutting 120 and the first slot 340, so that the reliability of mechanical fixation between the first circuit board 100 and the third circuit board 300 may be improved.

In this embodiment, the first cutting 120 is plugged into the first slot 340, so as to achieve the mechanical connection between the first circuit board 100 and the third circuit board 300. The connection mode is simple and easy to implement, screws are not required to be screwed into the first circuit board 100 and the third circuit board 300 by means of tools such as a screwdriver, so that the first circuit board 100 and the third circuit board 300 are fixed, the number of parts used can be reduced, labor and working procedures during installation are saved, and the mechanical fixing efficiency of the first circuit board 100 and the third circuit board 300 is improved. Accordingly, the removal efficiency of the first and third circuit boards 100 and 300 can also be improved.

In some embodiments, as shown in fig. 4, the first slot 340 may be a groove provided at a side of the third circuit board 300.

In this case, the first slot 340 is disposed at an edge of the third circuit board 300, and the first slot 340 communicates with a side of the third circuit board 300. Accordingly, when the first circuit board 100 and the third circuit board 300 are plugged together, the plugging may be performed in the first direction OX or the plugging may be performed in the second direction OY, so that the flexibility of the mounting manner of the first circuit board 100 and the third circuit board 300 is improved. The first direction OX may be perpendicular to the second direction OY and the third direction OZ, and the second direction OY may be parallel to the thickness direction of the third wiring board 300, and the third direction OZ may be parallel to the arrangement direction of the first wiring board 100 and the second wiring board 200.

In addition, after the first slot 340 is plugged with the first cutting 120, the first slot 340 may wrap the first cutting 120 on three sides, so as to limit the first circuit board 100 from shaking or sliding relative to the third circuit board 300 from three directions. The three directions may be a first direction OX, a third direction OZ, and an opposite direction of the third direction OZ.

In other embodiments, the first slot 340 may also be a through slot provided in the third circuit board 300.

In this case, the first slot 340 is disposed inside the third circuit board 300, and the first slot 340 is not in communication with a side surface of the third circuit board 300. Based on this, the first wiring board 100 and the third wiring board 300 are inserted and connected substantially in the second direction OY.

After the first slot 340 is plugged with the first cutting 120, the first slot 340 may wrap the first cutting 120 on four sides, so that the first circuit board 100 may be limited to shake or slip relative to the third circuit board 300 from four directions, so as to facilitate improving the reliability of mechanical connection between the first circuit board 100 and the third circuit board 300. The four directions may be the first direction OX, an opposite direction of the first direction OX, the third direction OZ, and an opposite direction of the third direction OZ.

Referring to fig. 1, 3 and 4, in some embodiments, a side of the second circuit board 200 facing the third circuit board 300 may be provided with a second slot 230, where the second slot 230 includes a first slot wall 231 and a second slot wall 232 opposite to each other in the first direction OX, the second mounting portion 210 is configured as the first slot wall 231, and the third mounting portion 220 is configured as the second slot wall 232. The third circuit board 300 includes a first side 350 and a second side 360 opposite to each other in the first direction OX, the second mating portion 320 is configured as the first side 350, and the third mating portion 330 is configured as the second side 360. The third circuit board 300 is inserted into the second slot 230, and the first side 350 abuts against the first slot wall 231, and the second side 360 abuts against the second slot wall 232.

The second slot 230 includes a notch. The slot is open and faces the third circuit board 300. The first slot wall 231 and the second slot wall 232 are two walls of the second slot 230 adjacent to the slot. The first groove wall 231 and the second groove wall 232 may be parallel to each other.

The first side 350 and the second side 360 of the third circuit board 300 in the first direction OX may be parallel to each other.

In this embodiment, the third circuit board 300 is inserted into the second slot 230, so as to realize the mechanical connection between the second circuit board 200 and the third circuit board 300. In addition, the first side surface 350 is abutted against the first slot wall 231, and the second side surface 360 is abutted against the second slot wall 232, so that the possibility that the third circuit board 300 slips from the second slot 230 can be reduced, and the reliability of mechanical fixing between the second circuit board 200 and the third circuit board 300 is improved.

Similar to the mechanical connection between the first circuit board 100 and the third circuit board 300, the mechanical connection between the second circuit board 200 and the third circuit board 300 is simple and easy, and screws are not required to be screwed into the second circuit board 200 and the third circuit board 300 by means of tools such as screwdrivers to fix the second circuit board 200 and the third circuit board 300, so that the number of components can be reduced, labor force and working procedures during installation can be saved, and the efficiency of mechanical fixing of the second circuit board 200 and the third circuit board 300 can be improved conveniently. Accordingly, the disassembly efficiency of the second wiring board 200 and the third wiring board 300 can also be improved.

Fig. 5 is a schematic structural diagram of another third circuit board 300 according to an embodiment of the present application, further, in conjunction with fig. 1, fig. 3 and fig. 5, a first clamping block 351 and a second clamping block 352 spaced from each other may be connected to the first side 350, a third slot 370 is formed between the first clamping block 351, the second clamping block 352 and the first side 350, and the second mating portion 320 is further configured as the third slot 370. The second circuit board 200 is inserted into the third slot 370 at a position close to the first slot wall 231 in the first direction OX, and a side of the second circuit board 200 facing the first clamping block 351 is abutted against the first clamping block 351, a side of the second circuit board 200 facing the second clamping block 352 is abutted against the second clamping block 352, and the second mounting portion 210 is further configured as a position of the second circuit board 200 close to the first slot wall 231 in the first direction OX.

The first and second latches 351 and 352 may be plate-shaped. The first clamping block 351 and the second clamping block 352 may be integrally formed on the first side 350 of the third circuit board 300, and the first clamping block 351 and the second clamping block 352 may be connected with the third circuit board 300 by plugging or fastening connection after being formed separately. The first and second latches 351 and 352 are arranged along the third direction OZ.

In summary, in the process of plugging the third circuit board 300 into the second slot 230, the second circuit board 200 is plugged into the third slot 370 at a position close to the first slot wall 231 in the first direction OX, so that not only the possibility of shaking the third circuit board 300 in the first direction OX relative to the second circuit board 200 can be reduced by the limitation of the first slot wall 231 and the second slot wall 232, but also the possibility of shaking the second circuit board 200 in the third direction OZ relative to the third circuit board 300 can be reduced by the limitation of the slot wall of the third slot 370, and therefore, the mechanical connection between the first circuit board 100 and the third circuit board 300 can be more reliably stabilized.

In some embodiments, a first connection is formed between the first mounting portion 110 and the first mating portion 310, a second connection is formed between the second mounting portion 210 and the second mating portion 320, a third connection is formed between the third mounting portion 220 and the third mating portion 330, and the first connection, the second connection, and the third connection are distributed in a triangle.

In this case, the first, second, and third connection points may mechanically fix the first, second, and third circuit boards 100, 200, and 300 from different positions. More importantly, since the triangle has stability, the first connection part, the second connection part and the third connection part are distributed in a triangle shape, so that the stability of the mechanical connection of the first circuit board 100, the second circuit board 200 and the third circuit board 300 can be improved, thereby facilitating the improvement of the overall structural stability of the circuit board module.

With continued reference to fig. 1, in some embodiments, as shown in fig. 1, the first circuit board 100 and the second circuit board 200 are located on the same side of the third circuit board 300. In this case, the first circuit board 100 and the second circuit board 200 share the space on the same side of the third circuit board 300, and do not occupy the space on different sides of the third circuit board 300, so that the circuit board module is conveniently miniaturized, thereby facilitating the reduction of the occupation of the space in the power meter case by the circuit board module.

In addition, such an arrangement makes the distance between the side of the first wiring board 100 away from the third wiring board 300 and the side of the second wiring board 200 away from the third wiring board 300 smaller, so that the amount of material used for the pins or patch wires for electrically connecting the side of the first wiring board 100 away from the third wiring board 300 and the side of the second wiring board 200 away from the third wiring board 300 can be saved.

It should be noted that, the foregoing describes the case where one connection is formed between the first circuit board 100 and the third circuit board 300, and two connections are formed between the second circuit board 200 and the third circuit board 300. In practice, two joints may be formed between the first circuit board 100 and the third circuit board 300, and one joint may be formed between the second circuit board 200 and the third circuit board 300. Alternatively, two joints may be formed between the first circuit board 100 and the third circuit board 300, and two joints may also be formed between the second circuit board 200 and the third circuit board 300, which is not limited in the embodiment of the present application.

Further, in some embodiments, a side of the third circuit board 300 facing the first circuit board 100 may be provided with a first mounting groove (not shown) at a position opposite to the first circuit board 100.

In this case, the side of the first circuit board 100 facing the third circuit board 300 may be positioned in the first mounting groove while the first circuit board 100 is plugged with the third circuit board 300. In this way, the two groove walls of the first mounting groove in the third direction OZ can limit the first circuit board 100 in the third direction OZ, so that the possibility that the first circuit board 100 shakes or slips relative to the third circuit board 300 in the third direction OZ is further reduced.

Similarly, in other embodiments, a second mounting groove (not shown) may be provided at a position opposite to the second wiring board 200 on a side of the third wiring board 300 facing the second wiring board 200.

In this case, a portion of the second wiring board 200 adjacent to the second mounting portion 210 may be located in the second mounting groove while the second wiring board 200 is plugged with the third wiring board 300. In this way, the two groove walls of the second mounting groove in the third direction OZ can limit the second circuit board 200 in the third direction OZ, so that the possibility that the second circuit board 200 shakes or slips relative to the third circuit board 300 in the third direction OZ is further reduced.

The above embodiments are only for illustrating the technical solution of the present application, and are not limiting; although the application has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims (9)

1. A circuit board module for use with an electric energy meter, comprising:

a first circuit board, wherein a first mounting part is arranged at a first part of the first circuit board;

The second circuit board is electrically connected with the first circuit board, a second installation part and a third installation part are arranged at a second position of the second circuit board, and one of the second circuit board and the first circuit board is provided with a first bonding pad;

A third wiring board intersecting the first wiring board and the second wiring board; a first matching part is arranged at the position of the third circuit board opposite to the first mounting part, a second matching part is arranged at the position of the third circuit board opposite to the second mounting part, a third matching part is arranged at the position of the third circuit board opposite to the third mounting part, and a second bonding pad is arranged at the position of the third circuit board opposite to the first bonding pad;

The first installation part is connected with the first matching part, the second installation part is connected with the second matching part, the third installation part is connected with the third matching part, and the first bonding pad is welded with the second bonding pad.

2. The wiring board module of claim 1, wherein a side of the first wiring board facing the third wiring board is provided with a first cutting, the first mounting portion being configured as the first cutting;

A first slot is arranged at the position, opposite to the first cutting, of the third circuit board, and the first matching part is configured as the first slot;

The first cutting is spliced with the first slot.

3. The circuit board module according to claim 1, wherein a side of the second circuit board facing the third circuit board is provided with a second slot including a first slot wall and a second slot wall opposite to each other in a first direction, the second mounting portion is configured as the first slot wall, and the third mounting portion is configured as the second slot wall;

The third circuit board comprises a first side surface and a second side surface which are opposite in position in the first direction, the second matching part is configured as the first side surface, and the third matching part is configured as the second side surface;

The third circuit board is inserted into the second slot, the first side face is abutted to the first slot wall, and the second side face is abutted to the second slot wall.

4. The circuit board module according to claim 3, wherein the first side is connected with a first clamping block and a second clamping block which are spaced apart from each other, a third slot is formed between the first clamping block, the second clamping block and the first side, and the second matching portion is further configured as the third slot;

The second circuit board is inserted into the third slot at a position close to the first slot wall in the first direction, one side of the second circuit board, which faces the first clamping block, is abutted against the first clamping block, one side of the second circuit board, which faces the second clamping block, is abutted against the second clamping block, and the second installation part is further configured as a position, close to the first slot wall, of the second circuit board in the first direction.

5. The circuit board module according to claim 2, wherein the first slot is a groove provided in a side surface of the third circuit board; or alternatively

The first slot is a through slot arranged in the third circuit board.

6. The circuit board module according to claim 1, wherein a first connection is formed between the first mounting portion and the first mating portion, a second connection is formed between the second mounting portion and the second mating portion, a third connection is formed between the third mounting portion and the third mating portion, and the first connection, the second connection, and the third connection are distributed in a triangular shape.

7. The circuit board module according to claim 1, wherein the first circuit board and the second circuit board are disposed at intervals, and the first circuit board and the second circuit board are electrically connected by a pin or a patch cord.

8. The circuit board module of any of claims 1-7, wherein the first circuit board is substantially parallel to the second circuit board, the first circuit board and the second circuit board are substantially perpendicular to the third circuit board, and the first circuit board and the second circuit board are on the same side of the third circuit board.

9. An electric energy meter, characterized by comprising a housing and a circuit board module according to any of claims 1-8, said circuit board module being located in said housing and said second circuit board being screwed to said housing.