CN221829295U - A PCB cavity-enhancing structure - Google Patents

Abstract

The utility model relates to the technical field of circuit boards, and in particular to a PCB cavity-increasing structure, comprising a PCB board and an installation box, wherein a cavity-increasing component is arranged inside the installation box; the cavity-increasing component comprises vertical grooves opened at four corners of the installation box, a horizontal groove is opened at the bottom end of the vertical groove, a second spring is arranged at one end inside the horizontal groove, a clamping block is arranged at one end of the second spring, a moving rod is arranged at one end of the clamping block, a plurality of groups of clamping grooves are opened on the outer wall of the moving rod, a groove is opened around the inner wall of the horizontal groove, a third spring is arranged at one end of the inner wall of the groove, and a slide plate is arranged at one end of the third spring. In the utility model, a PCB cavity-increasing structure is designed, and the first spring on one side of the air-permeable protective plate and the second spring on one side of the moving rod are used to expand and contract, so as to facilitate the cavity-increasing effect when the PCB board is thermally expanded, and the moving rod is clamped with a clamping ball through the clamping groove of its outer wall, so as to facilitate the limiting of the moving rod, and the operation is simpler.

Description

A PCB cavity-enhancing structure

Technical Field

The utility model relates to the technical field of circuit boards, in particular to a PCB cavity-increasing structure.

Background Art

PCB board is a kind of circuit board, which is usually simple to make and low in cost.

A PCB positioning vacuum suction chamber device is proposed in the patent with publication number CN201456531U. When used in the patent, since the chamber enclosed by four panels and the platform is adjustable, when the printed circuit board is covered on the chamber and the exhaust fan is turned on to exhaust air, a vacuum is generated in the chamber, and negative pressure is formed above and below the printed circuit board, so that the printed circuit board is firmly fixed on the panel. However, the following problems still exist in the patent:

The above-mentioned PCB board is prone to generate heat during long-term use, which leads to thermal expansion. In addition, the volume of the installed cavity is fixed, which may easily cause damage to the PCB board over a long period of time. Therefore, it is necessary to increase the cavity of the PCB board.

In view of the above problems, it is necessary to design a PCB cavity-enhancing structure to overcome the above problems.

Utility Model Content

The main purpose of the utility model is to provide a PCB cavity increasing structure, which can effectively solve the problems in the background technology.

In order to achieve the above purpose, the technical solution adopted by the utility model is:

A PCB cavity-increasing structure comprises a PCB board and an installation box, wherein a cavity-increasing component is arranged inside the installation box;

The cavity increasing component includes vertical grooves opened at the four corners of the installation box, a horizontal groove is opened at the bottom end of the vertical groove, a second spring is arranged at one end inside the horizontal groove, a clamping block is arranged at one end of the second spring, a moving rod is arranged at one end of the clamping block, a plurality of groups of clamping grooves are opened on the outer wall of the moving rod, a groove is opened around the inner wall of the horizontal groove, a third spring is arranged at one end of the inner wall of the groove, a slide plate is arranged at one end of the third spring, a clamping ball is connected to one side of the slide plate, a protective pad is arranged around the inner wall of the installation box, a first spring is arranged on one side of the protective pad, a breathable protective plate is arranged at one end of the first spring, and heat dissipation holes are arranged around the outer wall of the installation box.

As a preferred solution of the utility model, the PCB board is snap-fitted to the installation box, the heat dissipation hole is fixedly connected to the installation box, and the protective pad is non-detachably connected to the installation box.

As a preferred solution of the utility model, one end of the first spring is non-detachably connected to the protective pad, the other end of the first spring is non-detachably connected to the breathable protective plate, and the vertical groove is fixedly connected to the installation box.

As a preferred solution of the utility model, the breathable protective plate is fixedly connected to the installation box, and the second spring is non-detachably connected to the transverse groove.

As a preferred solution of the utility model, the clamping block is non-detachably connected to the second spring, the clamping block is detachably connected to the moving rod, the moving rod is slidably connected to the transverse groove, and the groove is fixedly connected to the transverse groove.

As a preferred solution of the utility model, the third spring is non-detachably connected to the groove, the third spring is non-detachably connected to the slide plate, the slide plate is non-detachably connected to the locking ball, and the locking ball is clamped to the locking groove.

Beneficial Effects

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

In the utility model, a PCB cavity increasing structure is designed, and the first spring on one side of the breathable protective plate and the second spring on one side of the moving rod are used to expand and contract, so that the cavity can be increased when the PCB board expands thermally, and the moving rod is connected with the card ball through the card groove on its outer wall, so that it is convenient to limit it, and the operation is simpler.

BRIEF DESCRIPTION OF THE DRAWINGS

Fig. 1 is a schematic diagram of the structure of the utility model;

FIG2 is a schematic diagram of the PCB structure of the present invention;

FIG3 is a schematic diagram of the structure of the installation box and the breathable protective plate of the utility model;

FIG4 is a schematic diagram of the structure of the transverse groove and the movable rod of the utility model;

FIG. 5 is a schematic diagram of the structure of point A of the present utility model.

In the figure: 1, PCB board; 2, installation box; 3, cavity increase component; 301, vertical groove; 302, horizontal groove; 303, protective pad; 304, first spring; 305, breathable protective plate; 306, heat dissipation hole; 307, second spring; 308, block; 309, moving rod; 310, groove; 311, third spring; 312, slide plate; 313, card ball; 314, card slot.

DETAILED DESCRIPTION

In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

As shown in Fig. 1-5, a PCB cavity increasing structure includes a PCB board 1 and an installation box 2, wherein a cavity increasing component 3 is arranged inside the installation box 2;

The cavity increasing component 3 includes a vertical groove 301 opened at the four corners of the installation box 2, a horizontal groove 302 is opened at the bottom of the vertical groove 301, a second spring 307 is arranged at one end of the inside of the horizontal groove 302, a clamping block 308 is arranged at one end of the second spring 307, a moving rod 309 is arranged at one end of the clamping block 308, and a plurality of groups of clamping grooves 314 are opened on the outer wall of the moving rod 309, a groove 310 is opened around the inner wall of the horizontal groove 302, a third spring 311 is arranged at one end of the inner wall of the groove 310, a slide plate 312 is arranged at one end of the third spring 311, and a clamping ball 313 is connected to one side of the slide plate 312, a protective pad 303 is arranged around the inner wall of the installation box 2, a first spring 304 is arranged on one side of the protective pad 303, a breathable protective plate 305 is arranged at one end of the first spring 304, and a heat dissipation hole 306 is arranged around the outer wall of the installation box 2.

Please refer to Figures 1, 3, 4 and 5, the PCB board 1 is clamped with the installation box 2, the heat dissipation hole 306 is fixedly connected with the installation box 2, the protective pad 303 is non-detachably connected with the installation box 2, one end of the first spring 304 is non-detachably connected with the protective pad 303, the other end of the first spring 304 is non-detachably connected with the breathable protective plate 305, the vertical groove 301 is fixedly connected with the installation box 2, the breathable protective plate 305 is fixedly connected with the installation box 2, and the second spring 307 is connected with the The transverse grooves 302 are non-detachably connected, the block 308 and the second spring 307 are non-detachably connected, the block 308 and the moving rod 309 are detachably connected, the moving rod 309 and the transverse groove 302 are slidably connected, the groove 310 and the transverse groove 302 are fixedly connected, the third spring 311 and the groove 310 are non-detachably connected, the third spring 311 and the slide plate 312 are non-detachably connected, the slide plate 312 and the card ball 313 are non-detachably connected, and the card ball 313 and the card groove 314 are engaged;

Among them, the outer wall of the breathable protective plate 305 is penetrated with multiple groups of breathable holes, which are convenient for the PCB board 1 to dissipate heat. The outer wall of the PCB board 1 is blocked and affects its use. The card slot 314 is connected with the card ball 313 to facilitate the limiting of the moving rod 309.

The working process of the utility model is as follows: when using the PCB cavity increasing structure designed by the present scheme, the PCB board 1 is clamped inside the installation box 2, and the arcs of the four corners of the PCB board 1 are clamped on the outer walls of the four groups of transverse grooves 302 inside the installation box 2. When the PCB board 1 expands during use, the breathable protective plate 305 and the transverse groove 302 are squeezed through its outer wall, and the first spring 304 on the outer wall of the breathable protective plate 305 is extended and retracted, so as to timely increase the cavity for the PCB board 1. After the moving rod 309 is subjected to force, the outer wall slides on the inner wall of the transverse groove 302, and then the second spring 307 is squeezed to make it extend and retract, so as to increase the cavity at the four corners of the PCB board 1. The moving rod 309 slides to squeeze the card ball 313 at one end of the groove 310, so that it squeezes the groove 310, so as to facilitate the card ball 313 to be clamped in the card groove 314, and then the adjusted moving rod 309 is fixed, and then the cavity of the PCB board 1 is increased, and heat is dissipated through the heat dissipation holes 306 on the outer wall of the installation box 2, and the operation is simple.

Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims (6)

1. The utility model provides a PCB increases chamber structure, includes PCB board (1) and mounting box (2), its characterized in that: a cavity increasing component (3) is arranged in the installation box (2);

The cavity increasing assembly (3) comprises vertical grooves (301) formed in four corners of the mounting box (2), transverse grooves (302) are formed in the bottom ends of the vertical grooves (301), second springs (307) are arranged at one ends of the inner portions of the transverse grooves (302), clamping blocks (308) are arranged at one ends of the second springs (307), moving rods (309) are arranged at one ends of the clamping blocks (308), a plurality of groups of clamping grooves (314) are formed in the outer walls of the moving rods (309), grooves (310) are formed in the periphery of the inner walls of the transverse grooves (302), third springs (311) are arranged at one ends of the inner walls of the grooves (310), sliding plates (312) are arranged at one ends of the third springs (311), clamping balls (313) are connected to one side of the sliding plates (312), protective pads (303) are arranged at one ends of the inner walls of the mounting box (2), first springs (304) are arranged at one ends of the first springs, ventilation protective plates (305), and heat dissipation holes (306) are formed in the periphery of the outer walls of the mounting box (2).

2. The PCB cavity increasing structure according to claim 1, wherein: the PCB (1) is clamped with the mounting box (2), the radiating holes (306) are fixedly connected with the mounting box (2), and the protection pad (303) is not detachably connected with the mounting box (2).

3. The PCB cavity increasing structure according to claim 2, wherein: the anti-theft protection device is characterized in that one end of the first spring (304) is connected with the protection pad (303) in a non-detachable mode, the other end of the first spring (304) is connected with the ventilation protection plate (305) in a non-detachable mode, and the vertical groove (301) is fixedly connected with the installation box (2).

4. A PCB cavity increasing structure according to claim 3, wherein: the ventilation protection plate (305) is fixedly connected with the installation box (2), and the second spring (307) is not detachably connected with the transverse groove (302).

5. The PCB cavity increasing structure according to claim 4, wherein: the clamping block (308) is in non-detachable connection with the second spring (307), the clamping block (308) is in detachable connection with the moving rod (309), the moving rod (309) is in sliding connection with the transverse groove (302), and the groove (310) is fixedly connected with the transverse groove (302).

6. The PCB cavity increasing structure according to claim 5, wherein: the third spring (311) is in non-detachable connection with the groove (310), the third spring (311) is in non-detachable connection with the sliding plate (312), the sliding plate (312) is in non-detachable connection with the clamping ball (313), and the clamping ball (313) is in clamping connection with the clamping groove (314).