CN223375717U - Assembly structure of a circuit board - Google Patents

Abstract

This utility model belongs to the field of auto parts and discloses a circuit board assembly structure, comprising a lamp holder, a circuit board disposed in the lamp holder, and a lamp cover connected to the lamp holder and encapsulating the circuit board in the lamp holder. The lamp holder and the lamp cover engage with each other in a snap-fitting manner. The lamp holder has a mounting cavity for mounting the circuit board, a retaining structure disposed in the mounting cavity for retaining the circuit board, and an elastic compression structure disposed on the lamp cover for abutting against the circuit board. This utility model relies on the elastic compression structure for crimping, and the presence of elastic deformation rationally avoids tolerance gaps generated by manufacturing and assembly, thereby alleviating the problem of abnormal noise in the product and improving the product yield.

Description

Assembly structure of circuit board

Technical Field

The utility model relates to the field of automobile parts, in particular to an assembly structure of a circuit board.

Background

In the manufacturing process of the automobile lamp, a circuit board is often used, and the assembly structure of the circuit board is mainly hot riveted, screwed connection and clamping connection in the past, so that the problems of difficult maintenance and replacement, high part cost, abnormal shaking and the like exist. The utility model provides a novel circuit board assembly structure, which well reduces the production cost, improves the production efficiency and solves the problems of abnormal sound and difficult maintenance and replacement.

Disclosure of utility model

The present utility model is directed to a solution to the above-mentioned problems.

In order to achieve the above purpose, the present utility model provides the following technical solutions:

The utility model provides an assembly structure of circuit board, includes the lamp stand, sets up circuit board in the lamp stand and be connected and encapsulate the lamp lid in the lamp stand with the circuit board in the lamp stand, lamp stand and lamp lid joint cooperation, the lamp stand has the installation cavity that is used for installing the circuit board, set up the limit structure with circuit board limit fit in the installation cavity, set up the elasticity compact structure that offsets with the circuit board on the lamp lid.

Further, one of the lamp holder and the lamp cover is provided with a plurality of clamping feet, and the other is provided with a plurality of bayonets which are clamped and connected with the clamping feet in a one-to-one correspondence manner.

Further, the clamping feet are arranged on the lamp cover, and the bayonet is arranged on the lamp holder.

Further, the left side, the right side and the front end of the lamp cover are provided with clamping feet, and the left side, the right side and the front end of the lamp holder are provided with bayonets.

Further, the limiting structure comprises supporting ribs, the front surface of the circuit board is propped against the supporting ribs, the back surface of the circuit board is propped against the elastic compression structure of the lamp cover, and the supporting ribs and the elastic compression structure limit the circuit board in the up-down direction.

Further, the limiting structure comprises side limiting ribs, the side limiting ribs are propped against the side of the circuit board, and the side limiting ribs limit the circuit board in the left-right direction.

Further, the limiting structure comprises an end limiting rib, the end limiting rib is propped against the front end or the rear end of the circuit board, and the end limiting rib limits the circuit board in the front-rear direction.

Further, the lamp cover is provided with a press-connection protrusion, and the press-connection protrusion is used for pressing the back surface of the circuit board.

Further, the elastic pressing structure is a convex spring plate.

Compared with the prior art, the utility model has the beneficial effects that:

1) The elastic compression structure is used for compression joint, and the existence of elastic deformation reasonably avoids the tolerance gap generated by manufacturing and assembly, so that the problem of abnormal sound of the product is solved, and the yield of the product is improved;

2) By means of the cooperation of the bayonet and the clamping pin, assembly and fixation are achieved, compared with a traditional hot riveting mode, the assembly and fixation are easy to detach and maintain, the circuit board can be replaced under the condition that products are not damaged, and the later maintenance cost of a customer is saved;

3) By means of the cooperation of the bayonet and the clamping foot, compared with the traditional hot riveting and screwing mode, corresponding tools can be saved, production beats can be improved, and the competitiveness of products is improved;

4) After traditional rivet hot and spiro union mode are fixed, can produce the damage to circuit board and components and parts, if the circumstances of wiring circuit break in the circuit board behind the rivet hot high temperature scald components and parts and the spiro union, rely on elasticity to compress tightly the structure and carry out the crimping, can effectively solve this kind of problem, promote the yield of product.

Drawings

FIG. 1 is a schematic diagram of the structure of the present utility model.

FIG. 2 is a schematic diagram of an exploded structure of the present utility model.

FIG. 3 is a schematic cross-sectional structure of the present utility model.

Fig. 4 is a schematic view of the structure of the lamp cap according to the present utility model.

Fig. 5 is a schematic view of a lamp socket according to the present utility model.

In the figure, a lamp cover 10, a press-connection protrusion 11, a clamping foot 12, a protrusion spring piece 13, an end protrusion 14, a circuit board 20, a lamp holder 30, a supporting rib 31, a side limiting rib 32, an end limiting rib 33 and a bayonet 34 are shown.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. 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.

Referring to fig. 1-5, an assembling structure of a circuit board includes a lamp holder 30, a circuit board 20 disposed in the lamp holder 30, and a lamp cover 10 connected with the lamp holder 30 and encapsulating the circuit board 20 in the lamp holder 30, wherein the lamp holder 30 is in clamping fit with the lamp cover 10, the lamp holder 30 has a mounting cavity for mounting the circuit board 20, a limit structure for limiting fit with the circuit board 20 is disposed in the mounting cavity, and an elastic compression structure for propping against the circuit board 20 is disposed on the lamp cover 10.

Further, the lamp cover 10 and the lamp holder 30 are both plastic structures, the elastic compression structure is a convex spring piece 13, and the convex spring piece 13 has elasticity by utilizing the characteristic of plastics.

With continued reference to fig. 3-5, in one embodiment of the present utility model, the front end and the left and right sides of the rear portion of the lamp cover 10 are provided with the clamping legs 12, and the front end and the left and right sides of the rear portion of the lamp holder 30 are provided with the bayonets 34, and the clamping legs are clamped with the bayonets 34 in a one-to-one correspondence.

The positions and the number of the clamping legs 12 and the clamping openings 34 can be adjusted according to the requirements.

In another embodiment of the present utility model, the clip 12 may be provided on the lamp socket 30 and the bayonet 34 may be provided on the lamp cap 10.

With continued reference to fig. 3 and 5, in one embodiment of the present utility model, the spacing structure on the lamp socket 30 includes a support rib 31, a side spacing rib 32, and an end spacing rib 33. The support ribs 31 are arranged on the left and right inner walls of the mounting cavity of the lamp holder 30, the tops of all the support ribs 31 are flush, the front surface of the circuit board 20 is propped against the support ribs 31 at a plurality of different positions, and the back surface of the circuit board 20 is propped against the elastic compression structure of the lamp cover 10, so that the up-and-down movement of the circuit board 20 is limited. The same plurality of side limiting ribs 32 are arranged on the left and right inner walls of the mounting cavity of the lamp holder 30, the top of the side limiting rib 32 is provided with an arc surface for guiding the insertion of the circuit board 20, and the left and right sides of the circuit board 20 are respectively propped against the corresponding side limiting ribs 32 after the circuit board 20 is inserted into the mounting cavity of the lamp holder 30, so that the movement of the circuit board 20 in the left and right directions is limited. The two end limiting ribs 33 are respectively arranged at the rear ends of the inner walls of the left side and the right side of the installation cavity of the lamp holder 30, the end limiting ribs 33 protrude more towards the inside of the installation cavity than the side limiting ribs 32, when the circuit board 20 is inserted into the installation cavity, the front end of the end limiting ribs abuts against the inner wall of the front end of the installation cavity, and the rear end of the end limiting ribs abuts against the two end limiting ribs 33, so that the movement of the circuit board 20 is limited in the front-rear direction.

The number, shape and position of the support ribs 31, the side limit ribs 32 and the end limit ribs 33 can be adjusted as required.

With continued reference to fig. 3 and 4, in one embodiment of the present utility model, the left and right sides of the front end of the lamp cap 10 are respectively provided with the press protrusions 11 protruding upward, and the press protrusions 11 are used to press the back surface of the circuit board 20.

The utility model is realized in such a way that the circuit board 20 is arranged on the supporting rib 31 of the lamp holder 20, and the movement of the circuit board 20 in the front-back left-right direction is limited by the side limiting rib 32 and the end limiting rib 33. The lamp cover 10 is pressed down, the pressing connection protrusion 11 and the protrusion elastic sheet 13 are in contact with the outer surface of the circuit board 20, the circuit board 20 is tightly pressed through the clamping fit of the plurality of clamping feet 12 and the bayonet 34, the movement in the up-down direction of the circuit board 20 is limited, the protrusion elastic sheet 13 and the circuit board 20 are in interference fit in the process, the circuit board 20 and the lamp holder 30 are completely attached through the elastic deformation of the protrusion elastic sheet 13, abnormal sound caused by the assembly gap of the traditional clamping mode is avoided, and the advantage that the traditional clamping mode is easy to detach is reserved.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims (9)

1. The utility model provides an assembly structure of circuit board, includes lamp stand (30), sets up circuit board (20) in lamp stand (30) and be connected and encapsulate lamp lid (10) in lamp stand (30) with circuit board (20) in lamp stand (30), a serial communication port, lamp stand (30) and lamp lid (10) joint cooperation, lamp stand (30) have the installation cavity that is used for installing circuit board (20), set up the limit structure with circuit board (20) limit fit in the installation cavity, set up the elasticity compact structure that offsets with circuit board (20) on lamp lid (10).

2. The assembly structure of the circuit board according to claim 1, wherein one of the lamp holder (30) and the lamp cover (10) is provided with a plurality of clamping feet (12), and the other is provided with a plurality of bayonets (34) which are clamped with the clamping feet (12) in a one-to-one correspondence.

3. The assembly structure of a circuit board according to claim 2, wherein the clip pins (12) are provided on the lamp cover (10), and the bayonet (34) is provided on the lamp base (30).

4. A circuit board assembly structure according to claim 3, wherein the lamp cover (10) is provided with clamping pins (12) at both left and right sides and front end, and the lamp holder (30) is provided with bayonet (34) at both left and right sides and front end.

5. The assembly structure of a circuit board according to claim 1, wherein the limiting structure comprises supporting ribs (31), the front surface of the circuit board (20) is abutted against the supporting ribs (31), the back surface of the circuit board (20) is abutted against the elastic pressing structure of the lamp cover (10), and the supporting ribs (31) and the elastic pressing structure limit the circuit board (20) in the up-down direction.

6. The assembly structure of a circuit board according to claim 1, wherein the limiting structure comprises side limiting ribs (32), the side limiting ribs (32) abut against the side of the circuit board (20), and the side limiting ribs (32) limit the circuit board (20) in the left-right direction.

7. The assembly structure of a circuit board according to claim 1, wherein the limiting structure comprises an end limiting rib (33), the end limiting rib (33) abuts against the front end or the rear end of the circuit board (20), and the end limiting rib (33) limits the circuit board (20) in the front-rear direction.

8. The assembling structure of a circuit board according to claim 1, wherein the lamp cover (10) is provided with a press-fit protrusion (11), and the press-fit protrusion (11) is used to press against the back surface of the circuit board (20).

9. The assembly structure of a circuit board according to claim 1, wherein the elastic pressing structure is a protruding spring plate (13).