CN211017299U

CN211017299U - Waterproof structure of lithium battery protection board

Info

Publication number: CN211017299U
Application number: CN201920113925.5U
Authority: CN
Inventors: 喻天升
Original assignee: Shenzhen Lipeng New Energy Co ltd
Current assignee: Shenzhen Lipeng New Energy Co ltd
Priority date: 2019-01-23
Filing date: 2019-01-23
Publication date: 2020-07-14
Anticipated expiration: 2029-01-23

Abstract

The utility model discloses a waterproof structure of a lithium battery protection plate, which comprises a rectangular lithium battery protection plate, wherein a supporting block is fixed at the four corners of the lithium battery protection plate, two openings which are symmetrical up and down are arranged on the supporting block, and a damping piece is fixed in each opening; the bottoms of the supporting blocks are connected through a bottom plate, and the side surface of the bottom plate transversely extends to the outer side of the lithium battery protection plate; a plurality of support columns are fixed on the bottom plate, the support columns are abutted against the side faces of the lithium battery protection plate, a first cavity and a second cavity are arranged in the support columns from top to bottom, and a drying agent is stored in the second cavity; the top of support column is equipped with a plurality of connecting holes that switch on with first cavity, is equipped with a plurality of round holes that switch on with the second cavity on the support column. The utility model has simple structure, strong structural stability and good shock resistance; the waterproof effect is good, can effectively get rid of the liquid that is infected with on lithium cell protection shield, increase of service life has promoted the security.

Description

Waterproof structure of lithium battery protection board

Technical Field

The utility model relates to a waterproof construction of lithium cell protection shield.

Background

The lithium battery protection board is used for charging and discharging protection of the series lithium battery pack; when the battery pack is fully charged, the voltage difference between the single batteries can be ensured to be smaller than a set value (generally +/-20 mV), the uniform charging of the single batteries of the battery pack is realized, and the charging effect in a series charging mode is effectively improved; simultaneously, the overvoltage, undervoltage, overcurrent, short circuit and overtemperature states of each single battery in the battery pack are detected, so that the service life of the battery is protected and prolonged; the undervoltage protection prevents each single battery from being damaged by overdischarge when the single battery is used for discharging.

The existing lithium battery protection board has no special waterproof protection and poor waterproof effect.

Disclosure of Invention

The utility model aims to solve the technical problem that a simple structure, water-proof effects is good, has good shock resistance, promotes stability, lithium battery protection shield's waterproof construction.

The utility model discloses a realize through following technical scheme: a waterproof structure of a lithium battery protection plate comprises the lithium battery protection plate in a rectangular structure, wherein a supporting block is fixed at each of four corners of the lithium battery protection plate, two openings which are symmetrical up and down are formed in each supporting block, and a damping piece is fixed in each opening; the bottoms of the supporting blocks are connected through a bottom plate, and the side surface of the bottom plate transversely extends to the outer side of the lithium battery protection plate; a plurality of support columns are fixed on the bottom plate, the support columns are abutted against the side faces of the lithium battery protection plate, a first cavity and a second cavity are arranged in the support columns from top to bottom, and a drying agent is stored in the second cavity; the top of the support column is provided with a plurality of connecting holes communicated with the first cavity, the support column is provided with a plurality of round holes communicated with the second cavity, one side of the support column is provided with a plurality of connecting sheets, the connecting sheets extend to the center of the surface of the lithium battery protection plate, and the top surface of each connecting sheet is obliquely provided with a row of flow guide grooves; the connecting sheet is provided with a plurality of round holes communicated with the flow guide groove, and a layer of water absorbing layer is fixed in the round holes.

As the preferred technical scheme, the shock-absorbing part comprises a shock-absorbing compression spring, a connecting plate is welded to the connection of the shock-absorbing compression spring, and the connecting plate is fixed with the upper inner wall and the lower inner wall of the opening.

As the preferred technical scheme, the bottom plate and the supporting block are of an integrated structure and are both made of rubber; the base sheet and the support posts are also of unitary construction.

As the preferred technical scheme, the water absorbing layer is made of water absorbing sponge and is fixed in the round hole through waterproof glue.

As the preferred technical scheme, one end of the pouring groove is communicated with the connecting hole, and the other end of the pouring groove extends to one end, close to the center of the lithium battery protection plate, of the connecting piece.

The utility model has the advantages that: the utility model has simple structure, strong structural stability and good shock resistance; the waterproof effect is good, can effectively get rid of the liquid that is infected with on lithium cell protection shield, increase of service life has promoted the security.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic structural view of the present invention;

fig. 2 is a top view of the present invention;

fig. 3 is a schematic structural diagram of the support pillar of the present invention.

Detailed Description

All of the features disclosed in this specification, or all of the steps in any method or process so disclosed, may be combined in any combination, except combinations of features and/or steps that are mutually exclusive.

Any feature disclosed in this specification (including any accompanying claims, abstract and drawings), may be replaced by alternative features serving equivalent or similar purposes, unless expressly stated otherwise. That is, unless expressly stated otherwise, each feature is only an example of a generic series of equivalent or similar features.

In the description of the present invention, it is to be understood that the terms "one end", "the other end", "the outside", "upper", "inside", "horizontal", "coaxial", "central", "end", "length", "outer end", etc. indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Furthermore, in the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

The use of terms herein such as "upper," "above," "lower," "below," and the like in describing relative spatial positions is for the purpose of facilitating description to describe one element or feature's relationship to another element or feature as illustrated in the figures. The spatially relative positional terms may be intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "below" or "beneath" other elements or features would then be oriented "above" the other elements or features. Thus, the exemplary term "below" can encompass both an orientation of above and below. The device may be otherwise oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly

In the present invention, unless otherwise explicitly specified or limited, the terms "set", "coupled", "connected", "penetrating", "plugging", and the like are to be understood in a broad sense, and may be, for example, fixedly connected, detachably connected, or integrated; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

As shown in fig. 1, the lithium battery protection plate comprises a lithium battery protection plate 1 with a rectangular structure, wherein a supporting block 2 is fixed at each of four corners of the lithium battery protection plate 1, two openings 201 which are symmetrical up and down are formed in the supporting block 2, and a damping member is fixed in each opening. The supporting block is fixed with the lithium battery protection plate through strong glue or screws.

The damping part comprises a damping compression spring 401, a connecting plate 402 is welded to the damping compression spring, the connecting plate is fixed to the upper inner wall and the lower inner wall of the opening, and the connecting plate and the supporting block can be fixed through screws or strong glue.

In the embodiment, the bottoms of the supporting blocks 2 are connected through the bottom plate 3, and the side surface of the bottom plate transversely extends to the outer side of the lithium battery protection plate; a plurality of supporting columns 5 are fixed on the bottom plate, the supporting columns 5 are abutted against the side faces of the lithium battery protection plate, the supporting columns play a role of limiting and supporting, a first cavity 501 and a second cavity 502 are arranged in the supporting columns from top to bottom, a drying agent 503 is stored in the second cavity 502, the drying agent can be compressed activated carbon particles, and the water absorption and drying effects are good; the top of the support pillar 5 is provided with a plurality of connecting holes 504 communicated with the first cavity, the support pillar is provided with a plurality of round holes 507 communicated with the second cavity, one side of the support pillar is provided with a plurality of connecting sheets 506, the connecting sheets 506 and the support pillar are of an integrated structure, the connecting sheets 506 extend to the center of the surface of the lithium battery protection plate, and the top surface of each connecting sheet is obliquely provided with a row of flow guide grooves 508; the connecting sheet is provided with a plurality of round holes communicated with the flow guide groove, and a layer of water absorbing layer 507 is fixed in the round holes.

Wherein, the bottom plate and the supporting block are of an integrated structure and are both made of rubber; the base sheet and the support posts are also of unitary construction.

Wherein, the water absorbing layer is made of water absorbing sponge and is fixed in the round hole by waterproof glue.

One end of the backflow groove is communicated with the connecting hole, and the other end of the backflow groove extends to one end, close to the center of the lithium battery protection plate, of the connecting sheet. One end of the diversion trench communicated with the connecting hole is lower than the other end.

The working principle is as follows: when the lithium battery protection plate is used, the four corners of the lithium battery protection plate can be fixed with the supporting blocks, the shock absorption pieces on the supporting blocks increase the shock resistance effect of the whole structure, and the structure is not easy to loosen and is more stable; and the four corners of the lithium battery protection board are protected. Once receiving external pressure, the shock attenuation piece can compress the adjustment, has promoted overall structure's crushing resistance.

The connecting piece can be adjusted and fixed according to the position of the electronic element on the lithium battery protection board and extends to the center of the surface of the lithium battery protection board as far as possible. The layer that absorbs water on the connection piece adsorbs water, and water accessible guiding gutter is discharged and is preserved in the second cavity, can with the water direct contact on the lithium cell protection shield, water-proof effects is more.

The desiccant in the first cavity has a drying effect.

The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that are not thought of through the creative work should be covered within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the protection scope defined by the claims.

Claims

1. The utility model provides a lithium battery protection shield's waterproof construction, includes a lithium battery protection shield who is the rectangle structure, its characterized in that: a supporting block is fixed at each of four corners of the lithium battery protection plate, two openings which are symmetrical up and down are formed in each supporting block, and a damping piece is fixed in each opening; the bottoms of the supporting blocks are connected through a bottom plate, and the side surface of the bottom plate transversely extends to the outer side of the lithium battery protection plate; a plurality of support columns are fixed on the bottom plate, the support columns are abutted against the side faces of the lithium battery protection plate, a first cavity and a second cavity are arranged in the support columns from top to bottom, and a drying agent is stored in the second cavity; the top of the support column is provided with a plurality of connecting holes communicated with the first cavity, the support column is provided with a plurality of round holes communicated with the second cavity, one side of the support column is provided with a plurality of connecting sheets, the connecting sheets extend to the center of the surface of the lithium battery protection plate, and the top surface of each connecting sheet is obliquely provided with a row of flow guide grooves; the connecting sheet is provided with a plurality of round holes communicated with the flow guide groove, and a layer of water absorbing layer is fixed in the round holes.

2. The waterproof structure of a lithium battery protection plate as claimed in claim 1, wherein: the shock-absorbing part comprises a shock-absorbing compression spring, a connecting plate is welded to the shock-absorbing compression spring in a connecting mode, and the connecting plate is fixed to the upper inner wall and the lower inner wall of the opening.

3. The waterproof structure of a lithium battery protection plate as claimed in claim 1, wherein: the bottom plate and the supporting block are of an integrated structure and are both made of rubber; the base sheet and the support posts are also of unitary construction.

4. The waterproof structure of a lithium battery protection plate as claimed in claim 1, wherein: the water absorbing layer is made of water absorbing sponge and is fixed in the round hole through waterproof glue.

5. The waterproof structure of a lithium battery protection plate as claimed in claim 1, wherein: one end of the backflow groove is communicated with the connecting hole, and the other end of the backflow groove extends to one end, close to the center of the lithium battery protection plate, of the connecting sheet.