CN218941424U

CN218941424U - Circuit board mechanism

Info

Publication number: CN218941424U
Application number: CN202223038594.4U
Authority: CN
Inventors: 徐亚泉
Original assignee: Goodwe Technologies Co Ltd
Current assignee: Goodwe Technologies Co Ltd
Priority date: 2022-11-15
Filing date: 2022-11-15
Publication date: 2023-04-28
Anticipated expiration: 2032-11-15

Abstract

The utility model discloses a circuit board mechanism, which comprises a first circuit board, a second circuit board and a fixing piece, wherein one of the first circuit board and the second circuit board is provided with a slot, the other one of the first circuit board and the second circuit board is provided with a gear shaping matched with the slot, the second circuit board is detachably connected with the first circuit board by inserting the gear shaping into the slot, the fixing piece is arranged between the first circuit board and the second circuit board, one end of the fixing piece is connected with the second circuit board, the other end of the fixing piece is connected with the first circuit board, the fixing piece comprises a body and a first bending part which is arranged at an included angle with the axis direction of the body, the plane where the body and the first bending part are located is a first plane, and the first plane is perpendicular to the first circuit board and the second circuit board. The body of mounting and the part of first kink can obtain perpendicular to first circuit board and perpendicular to second circuit board motion buffering in the circuit board mechanism of this structure, when playing the fixed effect to two circuit boards, have reduced the mechanical damage that causes the circuit board.

Description

Circuit board mechanism

Technical Field

The utility model relates to the technical field of printed circuits, in particular to a circuit board mechanism.

Background

PCB (printed circuit board) printed wiring boards play an important role in the electronics industry, while PCBA (Printed Circuit Board Assembly) refers to the entire process of PCB blanks through SMT mounting, or through DIP card insertion. Because PCBA integrates a large number of components, its weight has been high.

At present, the fixing mode of the PCB board in the industry generally adopts flat screw fixing or 90-degree vertical stitch welding, and the fixing mode is widely applied due to the advantages of simple working procedure, easy operation, high production efficiency and the like. However, when such a fixing method is applied to a PCBA having a heavy weight, the board body is inevitably shaken and vibrated in a long-term use, which makes the PCBA impossible to be effectively fixed, and the board body is deformed and even broken, etc.

Therefore, the fixing support is added between the circuit boards in an acceptable mode. The structural stability of the two circuit boards is improved through the support, and the shaking and vibration of the circuit boards are reduced. However, since the bracket has a certain strength, the joint between the bracket and the circuit board is easily damaged after long-term use or after encountering strong vibration, and the circuit board is damaged seriously.

Disclosure of Invention

Therefore, the technical problem to be solved by the utility model is that the bracket in the prior art has a certain strength, so that the bracket is easy to damage the circuit board.

To this end, the utility model provides a circuit board mechanism comprising:

the first circuit board and the second circuit board are provided with slots, the other one of the first circuit board and the second circuit board is provided with gear shaping matched with the slots, and the second circuit board is detachably connected with the first circuit board by inserting the gear shaping into the slots;

the fixing piece is arranged between the first circuit board and the second circuit board, one end of the fixing piece is connected with the second circuit board, and the other end of the fixing piece is connected with the first circuit board;

the fixing piece comprises a body and a first bending part which is arranged at an included angle with the axis direction of the body, wherein the plane where the body and the first bending part are located is a first plane, and the first plane is perpendicular to the first circuit board and the second circuit board.

Optionally, the fixing piece further comprises a second bending part, the second bending part is arranged at one end of the body close to the first circuit board, and the second bending part is arranged at an included angle with the body and is provided with a first installation part which is attached to the first circuit board.

Optionally, in the above circuit board mechanism, the first mounting portion is a second plane of the second bending portion near the first circuit board end, and the second plane is suitable for being attached to a plane on the first circuit board.

Optionally, the second bending portion is provided with a first mounting hole, the first circuit board is provided with a second mounting hole, and the circuit board mechanism further comprises a mounting assembly, and the mounting assembly is simultaneously arranged in the first mounting hole and the second mounting hole in a penetrating manner, so that the second bending portion is arranged on the first circuit board.

Optionally, in the above circuit board mechanism, the first mounting hole and/or the second mounting hole are screw holes, and the mounting component is a screw and a nut.

Optionally, in the above circuit board mechanism, the fixing member further includes a second mounting portion, a third mounting portion is disposed at a position of the second circuit board close to the fixing member, and the second mounting portion is connected with the third mounting portion.

Optionally, in the above circuit board mechanism, the second mounting portion is formed into at least one protruding tooth of the fixing piece, which is close to one end of the second circuit board and protrudes towards the direction of the second circuit board, and the third mounting portion is formed into at least one groove with an opening towards the protruding tooth, and the protruding tooth is matched with the groove.

Optionally, in the circuit board mechanism, the convex teeth are spliced and/or welded with the grooves.

Optionally, the circuit board mechanism further includes a washer, one end of the second bending portion away from the second plane is a third plane, and the washer is disposed between a nut of the screw and the third plane.

Optionally, in the above circuit board mechanism, the second bending portion and the body are disposed at 90 ° and the second plane and the third plane are perpendicular to the body.

The technical scheme provided by the utility model has the following advantages:

1. the utility model provides a circuit board mechanism, which comprises a first circuit board, a second circuit board and a fixing piece, wherein one of the first circuit board and the second circuit board is provided with a slot, the other one of the first circuit board and the second circuit board is provided with a gear shaping matched with the slot, the second circuit board is detachably connected with the first circuit board by inserting the gear shaping into the slot, the fixing piece is arranged between the first circuit board and the second circuit board, one end of the fixing piece is connected with the second circuit board, the other end of the fixing piece is connected with the first circuit board, the fixing piece comprises a body and a first bending part which is arranged at an included angle with the axis direction of the body, the plane where the body and the first bending part are located is a first plane, and the first plane is perpendicular to the first circuit board and the second circuit board.

When two circuit boards produce relative motion because of vibration in the in-service use, the circuit board can exert effort to the mounting, and the mounting can exert reaction force to the circuit board, but if vibration amplitude is too big or vibration time is longer, the reaction force that the mounting exerted causes the damage to the junction of two circuit boards easily, still can lead to the circuit board to damage when serious. The mounting of this structure is through being the first kink that the contained angle set up with the body in body axis direction setting, can make two circuit boards vibrate and exert the effort to the mounting, and the body of mounting and the part of first kink can obtain perpendicular to first circuit board and perpendicular to second circuit board motion buffering, when playing fixed effect to two circuit boards, have reduced the mechanical damage that causes the circuit board.

2. The fixing piece further comprises a second bending part, wherein the second bending part is arranged at one end of the body, which is close to the first circuit board, and the second bending part is arranged at an included angle with the body and is provided with a first installation part which is attached to the first circuit board. Through setting up the second kink in the one end that the body is close to first circuit board to set up in the first installation department that first circuit board laminated mutually on the second kink, can make the mounting contact area increase under the unchangeable circumstances of the reaction force that the mounting applys first circuit board, reduced the pressure that first circuit board received, further reduced the mechanical damage that the mounting caused the circuit board.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are needed in the description of the embodiments or the prior art will be briefly described, and it is obvious that the drawings in the description below are some embodiments of the present utility model, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.

FIG. 1 is an axial view of a circuit board mechanism provided in embodiment 1 of the present utility model;

fig. 2 is a schematic structural view of a fixing member in the circuit board mechanism provided in embodiment 1 of the present utility model;

fig. 3 is a bottom view of the circuit board mechanism provided in embodiment 1 of the present utility model;

FIG. 4 is a rear view of the circuit board mechanism provided in embodiment 1 of the present utility model;

reference numerals illustrate:

1-a first circuit board;

2-a second circuit board;

3-fixing parts; 31-body; 32-a first bend; 33-a second bend; 34-a second mounting portion;

4-mounting assembly.

Detailed Description

The following description of the embodiments of the present utility model will be made apparent and fully in view of the accompanying drawings, in which some, but not all embodiments of the utility model are shown. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

In the description of the present utility model, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

In addition, the technical features of the different embodiments of the present utility model described below may be combined with each other as long as they do not collide with each other.

Example 1

The present embodiment provides a circuit board mechanism, as shown in fig. 1 to 4, including a first circuit board 1, a second circuit board 2 and a fixing member 3, one of the first circuit board 1 and the second circuit board 2 is provided with a slot, the other one of the first circuit board 1 and the second circuit board 2 is provided with a gear shaping matched with the slot, the second circuit board 2 is detachably connected with the first circuit board 1 by inserting the gear shaping into the slot, the fixing member 3 is disposed between the first circuit board 1 and the second circuit board 2, one end of the fixing member 3 is connected with the second circuit board 2, the other end is connected with the first circuit board 1, the fixing member 3 includes a body 31 and a first bending portion 32 disposed at an included angle with an axial direction of the body 31, a plane where the body 31 and the first bending portion 32 are located is a first plane, and the first plane is perpendicular to the first circuit board 1 and the second circuit board 2.

When two circuit boards produce relative motion due to vibration in actual use, the circuit boards can apply acting force to the fixing piece 3, and the fixing piece 3 can apply reaction force to the circuit boards, but if the vibration amplitude is overlarge or the vibration time is longer, the reaction force applied by the fixing piece 3 can easily damage the joint of the two circuit boards, and the circuit boards can be damaged when serious. The mounting 3 of this structure is through setting up the first kink 32 that is the contained angle setting with body 31 axis direction, can make two circuit boards vibrate and when applys effort to mounting 3, and the body 31 of mounting 3 can obtain perpendicular to first circuit board 1 and perpendicular to second circuit board 2 motion buffering with the part of first kink 32, when playing the fixed effect to two circuit boards, has reduced the mechanical damage that causes the circuit board.

In the circuit board mechanism provided in this embodiment, as shown in fig. 2, the fixing member 3 further includes a second bending portion 33, where the second bending portion 33 is disposed at one end of the body 31 near the first circuit board 1, and the second bending portion 33 is disposed at an included angle with the body 31 and has a first mounting portion that is attached to the first circuit board 1. Through setting up the second kink 33 in the one end that the body 31 is close to first circuit board 1 to set up in the first installation department that first circuit board 1 laminated set up mutually on the second kink 33, can make the mounting 3 contact area increase under the unchangeable circumstances of reaction force that applys first circuit board 1, reduced the pressure that first circuit board 1 received, further reduced the mechanical damage that mounting 3 caused the circuit board.

The second bending part 33 is provided with a first mounting hole, the first circuit board 1 is provided with a second mounting hole, and the second bending part further comprises a mounting assembly 4, and the mounting assembly 4 is simultaneously arranged in the first mounting hole and the second mounting hole in a penetrating manner, so that the second bending part 33 is arranged on the first circuit board 1. The second bending part 33 is 90 degrees with the body 31, and the upper end surface and the lower end surface of the second bending part are a third plane and a second plane respectively, so that the second plane and the third plane are perpendicular to the body 31 for enabling the fixing piece and the first circuit board to have good structural stability, namely, the second bending part is perpendicular to the body. In this embodiment, the first mounting portion is a second plane of the second bending portion 33 near the end of the first circuit board 1, and the second plane is suitable for being attached to a plane on the first circuit board 1. The first mounting hole and the second mounting hole are screw holes, and the mounting component 4 is a screw and a nut.

In the circuit board mechanism provided in this embodiment, as shown in fig. 1 and 2, the fixing member 3 further includes a second mounting portion 34, and a third mounting portion is disposed at a position of the second circuit board 2 close to the fixing member 3, and the second mounting portion 34 is connected to the third mounting portion. The second mounting portion 34 is formed as a pair of protruding teeth of the fixing member 3, which are close to one end of the second circuit board 2 and protrude toward the second circuit board 2, and the third mounting portion is formed as two grooves with openings toward the protruding teeth, and the protruding teeth are matched with the grooves.

Of course, the connection of the teeth and grooves is not fixed. For example, the fixing member 3 is inserted into the groove to fix the fixing member 3 and the second circuit board 2, or the protruding teeth and the bonding pads on the second circuit board 2 are welded and connected, in addition, the two methods can be combined, that is, the protruding teeth are inserted into the groove first, and then the connection positions of the protruding teeth and the second circuit board 2 are welded and connected, so that the connection reliability of the fixing member 3 and the second circuit board 2 is further improved. Specifically, the shapes of the teeth and the grooves are not limited in this embodiment, and the shapes may be the fit of one tooth and one groove, or the fit of three teeth and three grooves, so long as the two can be matched and connected, so as to improve the effect of good reliability at the connection position of the second circuit board 2 and the fixing member 3.

The circuit board mechanism provided in this embodiment further includes a washer, one end of the second bending portion 33 away from the second plane is a third plane, and the washer is disposed between the nut of the screw and the third plane.

It is apparent that the above examples are given by way of illustration only and are not limiting of the embodiments. Other variations or modifications of the above teachings will be apparent to those of ordinary skill in the art. It is not necessary here nor is it exhaustive of all embodiments. While still being apparent from variations or modifications that may be made by those skilled in the art are within the scope of the utility model.

Claims

1. A circuit board mechanism, comprising:

the circuit comprises a first circuit board (1) and a second circuit board (2), wherein one of the first circuit board and the second circuit board is provided with a slot, the other one of the first circuit board and the second circuit board is provided with a gear shaping matched with the slot, and the second circuit board (2) is detachably connected with the first circuit board (1) through inserting the gear shaping into the slot;

the fixing piece (3), the fixing piece (3) is arranged between the first circuit board (1) and the second circuit board (2), one end of the fixing piece (3) is connected with the second circuit board (2), and the other end of the fixing piece is connected with the first circuit board (1);

the fixing piece (3) comprises a body (31) and a first bending part (32) which is arranged at an included angle with the axis direction of the body (31), wherein the plane where the body (31) and the first bending part (32) are located is a first plane, and the first plane is perpendicular to the first circuit board (1) and the second circuit board (2).

2. The circuit board mechanism according to claim 1, wherein the fixing member (3) further comprises a second bending portion (33), the second bending portion (33) is disposed at one end of the body (31) close to the first circuit board (1), and the second bending portion (33) is disposed at an included angle with the body (31) and has a first mounting portion that is disposed in a fitting manner with the first circuit board (1).

3. Circuit board mechanism according to claim 2, characterized in that the first mounting portion is a second plane of the second bending portion (33) close to the end of the first circuit board (1), the second plane being adapted to be arranged in a fitting manner with a plane on the first circuit board (1).

4. A circuit board mechanism according to claim 3, wherein the second bending part (33) is provided with a first mounting hole, the first circuit board (1) is provided with a second mounting hole, and the circuit board mechanism further comprises a mounting assembly (4), and the mounting assembly (4) is simultaneously penetrated into the first mounting hole and the second mounting hole, so that the second bending part (33) is mounted on the first circuit board (1).

5. The circuit board mechanism according to claim 4, wherein the first mounting hole and/or the second mounting hole are screw holes, and the mounting component (4) is a screw and a nut.

6. Circuit board mechanism according to claim 1, characterized in that the fixing member (3) further comprises a second mounting portion (34), a third mounting portion being provided at the second circuit board (2) close to the fixing member (3), the second mounting portion (34) being connected with the third mounting portion.

7. The circuit board mechanism according to claim 6, wherein the second mounting portion (34) is formed as at least one protruding tooth of the fixing member (3) near one end of the second circuit board (2) protruding toward the second circuit board (2), and the third mounting portion is formed as at least one recess opening toward the protruding tooth, and the protruding tooth is disposed in cooperation with the recess.

8. The circuit board mechanism according to claim 7, wherein the teeth are in a mating and/or soldering connection with the grooves.

9. The circuit board mechanism according to claim 5, further comprising a washer, wherein an end of the second bending portion (33) away from the second plane is a third plane, and the washer is disposed between a nut of the screw and the third plane.

10. The circuit board mechanism according to claim 9, wherein the second bending portion (33) is disposed at 90 ° to the body (31), and the second plane and the third plane are perpendicular to the body (31).