CN219577595U - Circuit board support and circuit board fixing structure - Google Patents

Abstract

The utility model provides a circuit board bracket and a circuit board fixing structure. The circuit board fixing structure comprises a shell and a circuit board support, wherein the support comprises a mounting part and an elastic supporting part, one side of the mounting part, facing the inner side wall of the shell, is used for accommodating the circuit board, and one side, facing away from the inner side wall of the shell, of the mounting part is connected with the elastic supporting part; the elastic supporting part is used for providing an elastic force for the mounting part for the circuit board to lean against towards the inner side wall of the shell, so that the circuit board is clamped between the mounting part and the inner side wall of the shell, the circuit board is tightly attached to the shell, and the circuit board is prevented from shaking in the thickness direction of the circuit board; the installation department is equipped with the connecting hole that can supply screw fastener to pass along the thickness vertical direction with the circuit board to make support and casing pass through screw fastener fixed connection, can change screw fastener's such as screw hookup location, the screw of being convenient for is screwed up with angle, the position of better operation and atress, and the circuit board installs and removes the convenience.

Description

Circuit board support and circuit board fixing structure

Technical Field

The utility model relates to the technical field of electronic product part fixing structures, in particular to a circuit board bracket and a circuit board fixing structure.

Background

A number of separate circuit boards are often mounted inside electronic products, and thus it is necessary to reliably and stably fix the circuit boards within the housing of the electronic device. For example, when fixing a circuit board on the inner side wall of a small electronic product, the circuit board is generally fixed by:

the first mode is that the circuit board is directly fixed with the inner side wall of the shell through screws, but when the space of the shell is smaller or the structure of the shell is limited, tools such as a screwdriver, an electric screwdriver and the like cannot screw in the screws at an angle perpendicular to the inner side wall of the shell, so that the screw in the screw is easy to incline or directly break the reserved screw hole on the shell, and further the conditions of infirm fixation of the circuit board, inconvenient disassembly and assembly or shell scrapping caused by the damage of the screw hole are caused;

the second mode is to insert the circuit board on a bracket and then connect the bracket with the shell by screws, but the bracket is well screwed with the screws, but the adhesion between the circuit board and the inner side wall of the shell is not tight, the circuit board is easy to loosen in the thickness direction, and the use of the circuit board is further affected.

Disclosure of Invention

In order to solve the existing technical problems, the utility model provides a circuit board bracket and a circuit board fixing structure which can enable a circuit board to be tightly attached to the inner side wall of a shell and are convenient to assemble and disassemble.

In order to achieve the above object, the technical solution of the embodiment of the present utility model is as follows:

in one aspect, an embodiment of the present utility model provides a circuit board support for mounting a circuit board into a housing, the support including a mounting portion and an elastic supporting portion; one side of the mounting part facing the inner side wall of the shell is used for accommodating the circuit board, and one side of the mounting part facing away from the inner side wall of the shell is connected with the elastic supporting part; the elastic supporting part is used for providing an elastic force for the mounting part for the circuit board to lean against towards the inner side wall of the shell so as to clamp the circuit board between the mounting part and the inner side wall of the shell; the mounting part is provided with a connecting hole for the threaded fastener to pass through along the direction perpendicular to the thickness of the circuit board, so that the bracket is fixedly connected with the shell through the threaded fastener.

In one embodiment, the elastic supporting portion is of a spring plate structure, one end of the elastic supporting portion is fixedly connected with the mounting portion, and the other end of the elastic supporting portion abuts against the shell under the action of self elasticity.

In one embodiment, the two opposite sides of the mounting portion are respectively provided with an ear plate, each ear plate is provided with a connecting hole, and one end of each connecting hole is an opening extending to the edge of each ear plate in a direction away from the inner side wall of the shell.

In one embodiment, the mounting portion includes a bottom plate and a side plate connected to a periphery of the bottom plate, and the side plate is disposed on a side of the bottom plate facing the inner sidewall of the housing and can be engaged with an edge of the circuit board.

In one embodiment, the bottom plate is provided with supporting ribs, and the circuit board is arranged on the inner side of the side plate and is arranged with the bottom plate at intervals through the supporting ribs.

In one embodiment, the sum of the thickness of the circuit board and the height of the supporting ribs is greater than the height of the side plates.

In one embodiment, the circuit board is adhesively connected to the support rib.

In one embodiment, the side plate and/or the bottom plate are provided with routing holes for routing wires between the circuit board and the electrical components.

In one embodiment, the circuit board support is an integrally formed structure.

On the other hand, the embodiment of the utility model also provides a circuit board fixing structure, which comprises a shell and any one of the circuit board brackets, wherein the shell is provided with an inner bottom wall and an inner side wall extending from the edge of the inner bottom wall; the inner side wall provides a clamping surface opposite to the mounting part, and the inner bottom wall is provided with a limiting part which is propped against the elastic supporting part, so that the circuit board can be elastically clamped between the clamping surface and the mounting part; and the inner bottom wall is provided with an inner threaded stud corresponding to the connecting hole, so that a threaded fastener can pass through the connecting hole and be screwed into the inner threaded stud.

The circuit board support and the circuit board fixing structure have the following beneficial effects: the circuit board bracket and the circuit board fixing structure have the advantages of low cost, simple structure and good universality; the circuit board is abutted against the inner side wall of the shell through the elastic supporting part arranged on the bracket to be fixed, so that the circuit board is tightly attached to the shell, and the circuit board is prevented from shaking in the thickness direction; the circuit board is arranged on the support, the support is fixed in the shell of the electronic equipment through threaded fasteners such as screws, the connection position of the screws can be changed, the screws can be conveniently screwed down at angles and positions with better operation and stress, and the circuit board is convenient to install/detach.

Drawings

Fig. 1 is an assembly schematic diagram of a circuit board fixing structure according to an embodiment of the utility model;

FIG. 2 is a partial block diagram of the housing of FIG. 1;

FIG. 3 is a schematic diagram illustrating an assembly of the circuit board bracket and the circuit board in FIG. 1;

fig. 4 is a schematic structural view of the circuit board bracket in fig. 3 in one direction;

fig. 5 is a schematic view of the circuit board support in fig. 3 in another direction.

The reference numerals of the elements in the drawings are as follows: a housing 10; an inner side wall 11; an inner bottom wall 12; a limiting part 121; an internally threaded stud 122; a bracket 20; a mounting portion 21; a bottom plate 211; support ribs 2111; a side plate 212; an ear plate 213; a connection hole 2131; a trace hole 214; an elastic support portion 22; a wiring board 30; a threaded fastener 40.

Detailed Description

The technical scheme of the utility model is further elaborated below by referring to the drawings in the specification and the specific embodiments.

In the description of the present utility model, it should be understood that the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, merely to facilitate describing the present utility model and simplify 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. In the description of the present utility model, unless otherwise indicated, the meaning of "a plurality" is two or more.

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 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.

The embodiment of the utility model provides a circuit board bracket and a circuit board fixing structure, which are used for fixing a circuit board on the inner side wall of an electronic product through the circuit board bracket. Referring to fig. 1 and 2, the circuit board fixing structure includes a housing 10, a circuit board bracket 20 and a circuit board 30. The casing 10 is a casing of an electronic product to be mounted with the circuit board 30, the casing 10 has an inner sidewall 11 and an inner bottom wall 12 perpendicular to each other, the inner sidewall 11 extends from an edge of the inner bottom wall 12, and in the mounting of the circuit board 30, the circuit board 30 needs to be vertically mounted in the casing 10, i.e. a plane of the circuit board 30 is perpendicular to the inner bottom wall 12, and a thickness direction of the circuit board 30 is perpendicular to the inner sidewall 11 of the casing. The bracket 20 includes a mounting portion 21 and an elastic supporting portion 22, wherein a side of the mounting portion 21 facing the inner sidewall 11 of the housing is used for accommodating the circuit board 30, a side of the mounting portion 21 facing away from the inner sidewall 11 of the housing is connected with the elastic supporting portion 22, and the elastic supporting portion 22 is used for providing an elastic force for the mounting portion 21 for the circuit board 30 to abut against the inner sidewall 11 of the housing. The inner bottom wall 12 of the shell is provided with a limiting part 121 propped against the elastic supporting part 22, the elastic supporting part 22 is propped against between the mounting part 21 and the limiting part 121, so that the circuit board 30 is clamped between the mounting part 21 and a clamping surface provided by the inner side wall 11, and the circuit board 30 is propped against the clamping surface of the inner side wall 11 under the elastic force of the elastic supporting part 22, thereby achieving the aim of fixing and mounting the circuit board 30. The mounting portion 21 is provided with a connecting hole 2131 through which the threaded fastener 40 passes in a direction perpendicular to the thickness of the circuit board 30, and the inner bottom wall 12 is provided with an internal threaded stud 122 corresponding to the connecting hole 2131, so that the mounting portion 21 and the housing 10 are fixedly connected by the threaded fastener 40, such as a screw, to further enhance the overall stability of the bracket 20. Thus, the circuit board 30 is abutted against the inner side wall 11 of the shell through the elastic supporting part 22 to be fixed, the circuit board 30 is tightly attached to the shell, and the circuit board 30 is prevented from shaking in the thickness direction; the circuit board 30 is arranged on the bracket 20, and then the bracket 20 is fixed in the shell of the electronic equipment through the threaded fastener 40, so that the threaded fastener 40 is conveniently screwed in, and the circuit board 30 is convenient to assemble and disassemble.

Specifically, referring to fig. 4 and 5, the elastic supporting portion 22 may be a spring structure. The mounting portion 21 has the same thickness direction as that of the wiring board 30, a width direction perpendicular to the inner bottom wall 12 of the case, and a length direction parallel to the inner bottom wall 12 of the case. The elastic supporting portion 22 and the circuit board 30 are respectively disposed at two sides of the thickness direction of the mounting portion 21, one end of the elastic supporting portion 22 is fixedly connected with the mounting portion 21, and the other end of the elastic supporting portion 22 is far away from the mounting portion 21 and extends towards the inner bottom wall 12 of the housing, so that the elastic supporting portion 22 is in an arc-shaped spring structure. The limiting portion 121 may be a protrusion protruding from the inner bottom wall 12 of the housing, and one side of the other end of the elastic supporting portion 22 opposite to the mounting portion 21 is abutted against the limiting portion 121, so that the whole mounting portion 21 moves toward the inner side wall 11 of the housing under the elastic force of the elastic supporting portion 22, so as to firmly clamp the circuit board 30 between the mounting portion 21 and the inner side wall 11 of the housing, and prevent the circuit board 30 from shaking. The number of the elastic supporting portions 22 is not limited, and the structure of the limiting portion 121 may be designed according to the number and the position of the elastic supporting portions 22. In the illustrated embodiment, two elastic support portions 22 are provided at intervals along the longitudinal direction of the mounting portion 21; in other embodiments, more than one circuit board 30 may be provided, which is only required to be clamped firmly.

Preferably, the elastic supporting portion 22 and the mounting portion 21 may be integrally formed, so that the overall structure of the bracket 20 is more stable. The bracket 20 is preferably made of Polycarbonate (PC) or the like, which has good electrical insulation and flame retardance, and high elastic coefficient and impact strength, and meets the elastic requirement of the elastic support portion 22.

The two opposite sides of the mounting portion 21 are respectively provided with an ear plate 213, the inner bottom wall 12 of the shell is provided with two internal threaded studs 122 corresponding to the two ear plates 213 one by one, the connecting hole 2131 is formed in the ear plates 213, and the threaded fastener 40 can pass through the connecting hole 2131 and be screwed into the internal threaded studs 122 so as to fixedly connect the bracket 20 with the shell 10. Specifically, the two ear plates 213 are respectively disposed on two sides of the mounting portion 21 in the length direction, the internal threaded stud 122 is disposed perpendicular to the inner bottom wall 12 of the housing and is provided with a threaded hole, the threaded fastener 40 may be a screw, and the purpose of fixing the mounting portion 21 is achieved by screwing the threaded fastener 40 into the threaded hole of the internal threaded stud 122 through the connecting hole 2131 on the ear plate 213. Unlike the prior art in which the circuit board 30 is directly screwed to the inner sidewall 11 of the housing, the following is: when the space of the housing 10 is narrow, tools such as a screwdriver, an electric screwdriver and the like are not convenient to screw in a manner perpendicular to the inner side wall 11 of the housing, and can only screw in an inclined screw manner, which easily causes unstable fixation of the circuit board 30 or damages the housing 10, and is not convenient to disassemble. The screwing position and the screwing angle of the screw can be changed through the circuit board bracket 20, and tools such as a screwdriver and the like can be screwed into the screw at an angle vertical to the inner bottom wall 12 of the shell, so that the force application, the installation and the subsequent disassembly and maintenance processes of an installer are facilitated.

Further, one end of the connecting hole 2131 is an opening extending to the edge of the ear plate 213 in a direction away from the inner sidewall 11 of the housing. The connecting hole 2131 may be U-shaped, and the opening direction thereof is opposite to the inner side wall 11 of the housing, so that when the mounting portion 21 moves towards the inner side wall 11 of the housing under the action of the elastic force of the elastic supporting portion 22, the U-shaped connecting hole 2131 may always correspond to the threaded hole on the internal threaded stud 122, so as to facilitate screwing in of the screw and adjust the fixing position of the mounting portion 21.

The circuit board 30 through the circuit board bracket and the circuit board fixing structure of the utility model is installed by the following steps: the elastic supporting part 22 is pressed by hand, so that the bracket 20 with the circuit board 30 is clamped between the inner side wall 11 of the shell and the limiting part 121, the mounting part 21 moves towards the inner side wall 11 of the shell under the elastic force of the elastic supporting part 22, so that the circuit board 30 is propped against the clamping surface of the inner side wall 11, and then the lug plate 213 and the internal thread stud 122 are fixed by a screw, so that the circuit board 30 can be mounted; when the circuit board 30 needs to be disassembled, the reverse operation is required. The mounting and dismounting process is simple and convenient to operate, and the circuit board 30 cannot shake easily in the thickness direction, so that the mounting is stable.

The wiring board 30 may be accommodated on one side of the mounting portion 21 in various manners, such as multipoint fixing, bonding, and the like. Referring to fig. 3, in the embodiment shown, the mounting portion 21 includes a bottom plate 211 and a side plate 212 connected to a periphery of the bottom plate 211, wherein the bottom plate 211 may be a rectangular flat plate structure, an arrangement direction of the bottom plate 211 is consistent with that of the circuit board 30, and the side plate 212 is disposed at an edge of a side of the bottom plate 211 facing the inner sidewall 11 of the housing. The side plate 212 may be provided with a plurality of boards and may be engaged with edges of the circuit board 30, so that the circuit board 30 is engaged with the inner side of the side plate 212, and the circuit board 30 does not move in the plane of itself. In this way, the side plate 212 restricts the movement of the wiring board 30 in the plane in which it itself is located, and the elastic support portion 22 restricts the movement of the wiring board 30 in the thickness direction thereof, so that the wiring board 30 is stably mounted.

Preferably, the bottom plate 211 is provided with supporting ribs 2111, and the circuit board 30 and the bottom plate 211 are arranged at intervals through the supporting ribs 2111, so that a heat dissipation space is formed between the circuit board 30 and the bottom plate 211, which is beneficial to heat dissipation of the circuit board 30, and meanwhile, the electronic components on the back surface of the circuit board 30 are not damaged. The supporting rib 2111 may be a plurality of protrusions perpendicular to the plane of the bottom plate 211, so that the circuit board 30 may be abutted against the inner sidewall 11 of the housing, and the sum of the thickness of the circuit board 30 and the height of the supporting rib 2111 is greater than the height of the side plate 212, that is, in the thickness direction of the mounting portion 21, one surface of the circuit board 30 connected to the inner sidewall 11 of the housing protrudes from the side plate 212, and the circuit board 30 may be firmly clamped between the supporting rib 2111 and the inner sidewall 11 of the housing.

Preferably, the circuit board 30 and the supporting rib 2111 can be bonded, for example, by double-sided adhesive, so that the circuit board 30 will not fall due to the angle of vertical placement when the bracket 20 with the circuit board 30 is clamped between the inner sidewall 11 of the housing and the limiting portion 121 or taken out, which is beneficial to the smooth process of disassembly and assembly.

Further, the side plate 212 and/or the bottom plate 211 are provided with routing holes 214, and the routing holes 214 are used for fixing the routing and wires between the circuit board 30 and the electrical components, and also play a role in dissipating heat to further enhance the heat dissipating capability of the circuit board 30. The routing holes 214 in the illustration are only examples, and the shapes, positions and numbers of the routing holes 214 can be designed correspondingly according to the requirements, and are not limited herein.

In summary, in the circuit board support and the circuit board fixing structure according to the embodiments of the present utility model, the circuit board 30 is abutted against the inner sidewall 11 of the housing 10 through the elastic supporting portion 22 of the support 20 to fix, so that the circuit board 30 is tightly attached to the housing, and the circuit board 30 is prevented from shaking in the thickness direction thereof; through locating circuit board 30 on support 20, again with support 20 through threaded fastener 40 fixed in electronic equipment's casing 10, can change threaded fastener 40's hookup location, the threaded fastener 40 of being convenient for is screwed up with better operation and atress angle, position, circuit board 30 easy dismounting.

It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.

The foregoing is merely illustrative of the present utility model, and the present utility model is not limited thereto, and any person skilled in the art will readily recognize that variations or substitutions are within the scope of the present utility model. Therefore, the protection scope of the present utility model shall be subject to the protection scope of the claims.

Claims (10)

1. A circuit board bracket for installing a circuit board into a housing, characterized in that the bracket comprises an installation part and an elastic supporting part; one side of the mounting part facing the inner side wall of the shell is used for accommodating the circuit board, and one side of the mounting part facing away from the inner side wall of the shell is connected with the elastic supporting part; the elastic supporting part is used for providing an elastic force for the mounting part for the circuit board to lean against towards the inner side wall of the shell so as to clamp the circuit board between the mounting part and the inner side wall of the shell; the mounting part is provided with a connecting hole for the threaded fastener to pass through along the direction perpendicular to the thickness of the circuit board, so that the bracket is fixedly connected with the shell through the threaded fastener.

2. The circuit board support according to claim 1, wherein the elastic supporting portion is of a spring structure, one end of the elastic supporting portion is fixedly connected with the mounting portion, and the other end of the elastic supporting portion abuts against the housing under the action of self elastic force.

3. The circuit board bracket according to claim 1, wherein ear plates are arranged on opposite sides of the mounting portion, each ear plate is provided with the connecting hole, and one end of the connecting hole is an opening extending to the edge of the ear plate in a direction away from the inner side wall of the housing.

4. The circuit board bracket according to claim 1, wherein the mounting portion includes a bottom plate and a side plate connected to a periphery of the bottom plate, and the side plate is disposed on a side of the bottom plate facing an inner sidewall of the housing and is capable of being engaged with an edge of the circuit board.

5. The circuit board support according to claim 4, wherein the bottom plate is provided with supporting ribs, and the circuit board is arranged on the inner side of the side plate and is arranged with the bottom plate at intervals through the supporting ribs.

6. The circuit board bracket of claim 5, wherein a sum of a thickness of the circuit board and a height of the support rib is greater than a height of the side plate.

7. The circuit board bracket of claim 6, wherein the circuit board is adhesively attached to the support bar.

8. The circuit board bracket according to claim 4, wherein the side plate and/or the bottom plate is provided with wiring holes for wiring between the circuit board and the electrical component.

9. The circuit board holder according to any one of claims 1 to 8, wherein the circuit board holder is an integrally formed structure.

10. A circuit board fixing structure, characterized by comprising a housing and the circuit board bracket according to any one of claims 1 to 9, the housing having an inner bottom wall and an inner side wall extending from an edge of the inner bottom wall; the inner side wall provides a clamping surface opposite to the mounting part, and the inner bottom wall is provided with a limiting part which is propped against the elastic supporting part, so that the circuit board can be elastically clamped between the clamping surface and the mounting part; and the inner bottom wall is provided with an inner threaded stud corresponding to the connecting hole, so that a threaded fastener can pass through the connecting hole and be screwed into the inner threaded stud.