CN219351994U

CN219351994U - Lithium electricity protection circuit board

Info

Publication number: CN219351994U
Application number: CN202320567073.3U
Authority: CN
Inventors: 汪云; 钟华
Original assignee: Hangzhou Huitang Electronic Technology Co ltd
Current assignee: Hangzhou Huitang Electronic Technology Co ltd
Priority date: 2023-03-22
Filing date: 2023-03-22
Publication date: 2023-07-14
Anticipated expiration: 2033-03-22

Abstract

The utility model discloses a lithium battery protection circuit board which comprises a circuit board main body, a bottom plate and a mounting hole, wherein the bottom plate is arranged at the bottom end of the circuit board main body, the mounting hole is formed in the circuit board main body and the bottom plate, a protection structure is arranged on the inner side of the mounting hole, and a dustproof structure is arranged at the top end of the circuit board main body. According to the lithium battery protection circuit board, the protection structure is arranged, the protection sleeve is positioned at the inner side of the mounting hole, when the circuit board main body is mounted, the protection sleeve can be penetrated through by the fixing screw to be mounted, and the elastic compression between the telescopic column and the protection sleeve is kept during mounting, so that if the circuit board main body is impacted and jolted, the telescopic column can compress the spring at the inner side to shrink, so that the force can be absorbed and weakened to a certain extent, the protection of the circuit board main body and the surface electronic components is realized, the falling damage of the circuit board main body due to the impact is prevented, and the protection of the lithium battery protection circuit board during the impact is enhanced.

Description

Lithium electricity protection circuit board

Technical Field

The utility model relates to the technical field of circuit boards, in particular to a lithium battery protection circuit board.

Background

When the lithium ion battery is normally used, chemical energy and electric energy in the battery are mutually converted, but overcharge, overdischarge or overcurrent can cause secondary reaction of the chemical energy in the battery, then the performance and the service life of the battery can be seriously influenced in the use process, and a large amount of gas can be possibly generated, so that the internal pressure of the battery is rapidly increased and then blasted, and the problems are prevented, so that a maintenance circuit is arranged in the lithium ion battery, and the lithium battery protection circuit board is a circuit board matched with the lithium battery for auxiliary protection of the lithium battery.

The lithium battery protection circuit board is generally matched with a lithium battery for use, part of the lithium battery is used in devices such as a notebook computer and a mobile phone, and the use process of the devices is stable, but when equipment such as an electric bicycle and an electric scooter is used, the equipment is influenced by external factors, jolt, shake and the like are easy to occur, the circuit board is influenced by vibration and collision inside, and the use is influenced by the conditions such as looseness, falling and the like, so that the equipment needs to be improved, and the equipment is more convenient to use.

Disclosure of Invention

The utility model aims to provide a lithium battery protection circuit board, which solves the problem that the lithium battery protection circuit board is easy to influence and use due to vibration and collision in the background technology.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a lithium electricity protection circuit board, includes circuit board main part, bottom plate and mounting hole, the bottom plate is installed to the bottom of circuit board main part, the inside of circuit board main part and bottom plate is provided with the mounting hole, the inboard of mounting hole is provided with protective structure, protective structure includes lag, expansion groove, spring, flexible post, base and rubber pad, the lag sets up in the inboard of mounting hole, the bottom of lag is provided with the expansion groove, the internally mounted of expansion groove has the spring, flexible post is installed to the bottom of spring, the base is installed to the bottom of flexible post, the rubber pad is installed to the bottom of base, the outside of circuit board main part and bottom plate is provided with auxiliary structure, the top of circuit board main part is provided with dustproof construction.

Preferably, the mounting holes are arranged in the circuit board main body and the bottom plate, and the four groups of mounting holes are symmetrically distributed.

Preferably, the cross section of the telescopic slot is larger than that of the telescopic column, and the telescopic slot and the telescopic column form a telescopic structure.

Preferably, the auxiliary structure comprises an adhesive layer, an anti-collision strip and a side strip, wherein the adhesive layer is arranged on the outer side of the circuit board main body and the bottom plate, the anti-collision strip is arranged on the outer side of the adhesive layer, and the side strip is fixed on the top end and the bottom end of the inner side of the anti-collision strip.

Preferably, the dustproof structure comprises a positioning seat, a docking rod, a dustproof plate, a heat-conducting silica gel pad, a clamping block and a clamping seat, wherein the positioning seat is arranged on one side of the top end of the circuit board main body, the docking rod is arranged on the inner side of the positioning seat, the dustproof plate is arranged on one side of the docking rod, the heat-conducting silica gel pad is arranged at the bottom end of the dustproof plate, the clamping block is fixed on one side of the bottom end of the dustproof plate, and the clamping seat is fixed on the other side of the top end of the circuit board main body.

Preferably, the cross section of the positioning seat is larger than that of the butt joint rod, and the positioning seat and the butt joint rod form a rotating structure.

Preferably, the cross section of the clamping block is smaller than the cross section of the clamping seat, and the clamping block and the clamping seat form a clamping structure.

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

through being provided with the protective structure, the protective sleeve is positioned at the inner side of the mounting hole, when the circuit board main body is mounted, the protective sleeve can be penetrated through by the fixing screw for mounting, and during mounting, the elastic compression between the telescopic column and the protective sleeve is kept, so that if the protective sleeve collides and jolts, the telescopic column can compress the spring at the inner side for shrinkage, thereby absorbing and weakening the force to a certain extent, thereby realizing the protection of the circuit board main body and the surface electronic components, preventing the circuit board main body and the surface electronic components from falling off and damaging due to collision, and enhancing the protection of the lithium battery protection circuit board during collision;

by arranging the auxiliary structure, the anti-collision strips and the side strips are fixed at the edge positions of the circuit board main body and the bottom plate through the bonding layer, so that the circuit board main body and the bottom plate can be protected, the circuit board main body and the bottom plate are prevented from being cracked or damaged due to contact or collision between the circuit board main body and the bottom plate and foreign objects, and the protection performance of the lithium battery protection circuit board at the edge angle position is enhanced;

through being provided with dustproof construction, the cooperation between shield and the positioning seat is passed through to the pole, movable mounting in the top of circuit board main part, and can overturn the operation, during the use, can overturn the shield and cover its top at circuit board main part, the fixture block card is gone into the fixing of carrying out the shield in the joint seat, thereby, the shield is located the top of circuit board main part, can play dustproof protection's effect, can prevent debris and circuit board main part surface's electronic component contact, and then influence its functionality, later stage operating personnel stir the shield, make the fixture block and joint seat separate the back, alright turn over the shield, so that maintain the electronic component of circuit board main part surface, the dustproof nature when having strengthened this lithium electricity protection circuit board and used.

Drawings

FIG. 1 is a schematic cross-sectional elevation view of the present utility model;

FIG. 2 is a schematic side view of the present utility model;

FIG. 3 is a schematic diagram of a front cross-sectional structure of a protective structure according to the present utility model;

fig. 4 is a schematic view of a partial enlarged structure at a in fig. 1 according to the present utility model.

In the figure: 1. a circuit board main body; 2. a bottom plate; 3. a mounting hole; 4. a protective structure; 401. a protective sleeve; 402. a telescopic slot; 403. a spring; 404. a telescopic column; 405. a base; 406. a rubber pad; 5. an auxiliary structure; 501. an adhesive layer; 502. a bumper strip; 503. side bars; 6. a dust-proof structure; 601. a positioning seat; 602. a butt joint rod; 603. a dust-proof plate; 604. a thermally conductive silicone pad; 605. a clamping block; 606. and a clamping seat.

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. 1-4, an embodiment of the present utility model is provided: the utility model provides a lithium electricity protection circuit board, including circuit board main part 1, bottom plate 2 and mounting hole 3, bottom plate 2 is installed to the bottom of circuit board main part 1, the inside of circuit board main part 1 and bottom plate 2 is provided with mounting hole 3, mounting hole 3 is provided with four groups in the inside of circuit board main part 1 and bottom plate 2, four groups of mounting hole 3 are symmetrical distribution, the inboard of mounting hole 3 is provided with protective structure 4, protective structure 4 includes lag 401, flexible groove 402, spring 403, flexible post 404, base 405 and rubber pad 406, lag 401 sets up in the inboard of mounting hole 3, the bottom of lag 401 is provided with flexible groove 402, the internally mounted of flexible groove 402 has spring 403, flexible post 404 is installed to the bottom of spring 403, base 405 is installed to the bottom of flexible post 404, the cross section of flexible groove 402 is greater than the cross section of flexible post 404, flexible groove 402 constitutes flexible structure with flexible post 404.

Specifically, as shown in fig. 1, 2 and 3, when the structure is used, the screws for mounting the circuit board main body 1 pass through the protective cover 401 to be mounted, and after the mounting, the telescopic posts 404 and the protective cover 401 are elastically connected through the springs 403, so that when external force is transmitted, the springs 403 inside the telescopic slots 402 can be pressed by the stress of the telescopic posts 404, the transmission of force can be reduced to a certain extent by contraction of the springs 403, and the damage to the circuit board main body 1 and the surface electronic components can be reduced.

The outside of circuit board main part 1 and bottom plate 2 is provided with auxiliary structure 5, and auxiliary structure 5 includes adhesive linkage 501, crashproof strip 502 and side bar 503, and adhesive linkage 501 sets up in the outside of circuit board main part 1 and bottom plate 2, and the outside of adhesive linkage 501 is provided with crashproof strip 502, and the top and the bottom of crashproof strip 502 inboard all are fixed with side bar 503.

Specifically, as shown in fig. 1, 2 and 4, when the structure is used, the anti-collision strip 502 and the side strips 503 are wrapped around the circuit board main body 1 and the bottom plate 2, so that the corner positions of the circuit board main body 1 and the bottom plate 2 can be protected, and the corner can be prevented from being cracked or damaged due to collision contact with foreign objects.

The top of circuit board main part 1 is provided with dustproof construction 6, including positioning seat 601, butt joint pole 602, the dust guard 603, heat conduction silica gel pad 604, fixture block 605 and joint seat 606, positioning seat 601 installs in one side on circuit board main part 1 top, the inboard of positioning seat 601 is provided with butt joint pole 602, the dust guard 603 is installed to one side of butt joint pole 602, heat conduction silica gel pad 604 is installed to the bottom of dust guard 603, one side of dust guard 603 bottom is fixed with fixture block 605, joint seat 606 is fixed in the opposite side on circuit board main part 1 top, the cross section of positioning seat 601 is greater than the cross section of butt joint pole 602, positioning seat 601 and butt joint pole 602 constitute rotating-structure, the cross section of fixture block 605 is less than the cross section of joint seat 606, fixture block 605 constitutes the block structure with joint seat 606.

Specifically, as shown in fig. 1 and 2, when the structure is used, the dust-proof plate 603 is located at an upper position of the circuit board main body 1, so that dust and sundries can be prevented from falling on the electronic element on the surface of the circuit board main body 1, and the use of the electronic element is further affected, and meanwhile, the heat-conducting silica gel pad 604 on the inner side of the dust-proof plate 603 can assist in stably radiating the surface of the circuit board main body 1, so that the overhigh temperature of the surface of the circuit board main body 1 is prevented.

Working principle: when the protective sleeve 401 is used, the protective sleeve 401 is positioned at the inner side of the mounting hole 3, when the circuit board main body 1 is mounted, mounting screws can pass through the inner side of the protective sleeve 401 to be mounted, and during mounting, elastic connection between the telescopic column 404, the spring 403 and the protective sleeve 401 is kept, so that when the impact force of vibration force at the outer side is transmitted to the protective sleeve, the base 405 and the telescopic column 404 can bear the stress to extrude the spring 403 at the inner side of the telescopic groove 402, the spring 403 is compressed, the damage of the force to the circuit board main body 1 and surface electronic components can be reduced, meanwhile, the periphery of the circuit board main body 1 and the bottom plate 2 is also wrapped with the anti-collision strips 502 and the side strips 503, the side edges and corner positions of the circuit board main body 1 and the bottom plate 2 can be protected by the existence of the anti-collision strips 502 and the side strips 503, can prevent here and foreign object contact collision and appear cracking damage, when using this circuit board, can overturn dust guard 603, cover it in the top of circuit board main part 1, dust guard 603's existence can avoid the excessive surface that falls in circuit board main part 1 of dust debris, and then cause the influence to circuit board main part 1 and the use of electronic component on the surface, the inboard heat conduction silica gel pad 604 of dust guard 603 can assist carrying out heat conduction heat dissipation and handle, avoid the high temperature of circuit board main part 1 surface, the later stage, the operator can stir dust guard 603, make fixture block 605 and joint seat 606 separation after, alright turn over dust guard 603, so as to maintain the electronic component of handling to circuit board main part 1 surface.

It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present utility model may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. The utility model provides a lithium electricity protection circuit board, includes circuit board main part (1), bottom plate (2) and mounting hole (3), its characterized in that: bottom plate (2) are installed to the bottom of circuit board main part (1), the inside of circuit board main part (1) and bottom plate (2) is provided with mounting hole (3), the inboard of mounting hole (3) is provided with protective structure (4), protective structure (4) are including lag (401), expansion tank (402), spring (403), telescopic column (404), base (405) and rubber pad (406), lag (401) set up in the inboard of mounting hole (3), the bottom of lag (401) is provided with expansion tank (402), the internally mounted of expansion tank (402) has spring (403), telescopic column (404) are installed to the bottom of spring (403), base (405) are installed to the bottom of base (406), the outside of circuit board main part (1) and bottom plate (2) is provided with auxiliary structure (5), the top of circuit board main part (1) is provided with dustproof construction (6).

2. The lithium battery protection circuit board according to claim 1, wherein: the mounting holes (3) are formed in the circuit board main body (1) and the bottom plate (2) in four groups, and the four groups of mounting holes (3) are symmetrically distributed.

3. The lithium battery protection circuit board according to claim 1, wherein: the cross section of the telescopic groove (402) is larger than that of the telescopic column (404), and the telescopic groove (402) and the telescopic column (404) form a telescopic structure.

4. The lithium battery protection circuit board according to claim 1, wherein: auxiliary structure (5) are including adhesive linkage (501), crashproof strip (502) and side bar (503), adhesive linkage (501) set up in the outside of circuit board main part (1) and bottom plate (2), the outside of adhesive linkage (501) is provided with crashproof strip (502), the top and the bottom of crashproof strip (502) inboard all are fixed with side bar (503).

5. The lithium battery protection circuit board according to claim 1, wherein: dustproof construction (6) are including positioning seat (601), butt joint pole (602), dust guard (603), heat conduction silica gel pad (604), fixture block (605) and joint seat (606), one side on circuit board main part (1) top is installed in positioning seat (601), the inboard of positioning seat (601) is provided with butt joint pole (602), dust guard (603) are installed to one side of butt joint pole (602), heat conduction silica gel pad (604) are installed to the bottom of dust guard (603), one side of dust guard (603) bottom is fixed with fixture block (605), other side on circuit board main part (1) top is fixed in joint seat (606).

6. The lithium battery protection circuit board according to claim 5, wherein: the cross section of the positioning seat (601) is larger than that of the butt joint rod (602), and the positioning seat (601) and the butt joint rod (602) form a rotating structure.

7. The lithium battery protection circuit board according to claim 5, wherein: the cross section of fixture block (605) is less than the cross section of joint seat (606), fixture block (605) and joint seat (606) constitute the block structure.