CN213212212U

CN213212212U - Waterproof lithium battery protection board

Info

Publication number: CN213212212U
Application number: CN202022500729.9U
Authority: CN
Inventors: 陈远华
Original assignee: Shenzhen Li Ion Battery Bodyguard Technology Co ltd
Current assignee: Shenzhen Li Ion Battery Bodyguard Technology Co ltd
Priority date: 2020-11-03
Filing date: 2020-11-03
Publication date: 2021-05-14
Anticipated expiration: 2030-11-03

Abstract

The utility model discloses a waterproof lithium battery protection plate, which comprises a shell, wherein the shell comprises a lower shell and an upper shell, the top of the lower shell is fixedly provided with a square snap ring, the bottom of the upper shell is fixedly provided with a square clamping groove, and the inner end of the square clamping groove is fixedly provided with a sealing gasket; the utility model has the advantages that: the utility model relates to a waterproof lithium battery protection board, can prevent through setting up the PCB board that water from getting into the PCB inboard and causing the PCB board to burn out in the casing, the mode fixed connection that lower casing and last casing are connected through the block, and the junction is provided with sealed the pad, can improve waterproof performance, first reinforcement cap and the second reinforcement cap through casing both ends suit all can consolidate casing and the connection of last casing down, overall structure's compressive property can also be improved, can fix the wire through last line ball board and line ball board down, prevent that the wire from tearing apart, through waterproof cover and pyrocondensation pipe all can improve the leakproofness that the wire stretches out the position, water-proof effects is better.

Description

Waterproof lithium battery protection board

Technical Field

The utility model relates to a lithium battery protection shield, in particular to waterproof lithium battery protection shield.

Background

The lithium battery protection board is used for charging and discharging protection of the series lithium battery pack, and can ensure that the voltage difference between the single batteries is smaller than a set value when the battery pack is fully charged, so that 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; under-voltage protection makes each single section battery avoid the battery to damage because of the overdischarge when discharging the use, and common lithium battery protection board is direct to expose in the battery box usually, and water-proof effects is relatively poor, leads to the lithium battery protection board to intake the short circuit after the battery box intakes easily, leads to the lithium battery protection board to burn out.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a waterproof lithium battery protection shield to solve the relatively poor problem of common lithium battery protection shield water-proof effects who provides in the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: a waterproof lithium battery protection plate comprises a shell, wherein the shell comprises a lower shell and an upper shell, a square snap ring is fixedly arranged at the top of the lower shell, a square clamping groove is fixedly arranged at the bottom of the upper shell, a sealing gasket is fixedly arranged at the inner end of the square clamping groove, the lower shell and the upper shell are connected through the square snap ring and the square clamping groove in a clamping manner, an upper wire pressing plate is fixedly arranged on one side wall of the upper shell, a lower wire pressing plate is fixedly arranged on one side wall of the lower shell, the bottom of the upper wire pressing plate is connected with the top of the lower wire pressing plate in a clamping manner, a plurality of threading holes are formed in one side of the inner end of the lower wire pressing plate, threading pipes are fixedly arranged at the inner ends of the threading holes, heat shrink pipes are sleeved on one sides of the outer walls of the threading pipes, a first reinforcing cap is sleeved at one end of, and a PCB is fixedly arranged at the inner end of the lower shell.

As an optimized technical scheme of the utility model, the fixed wire that is provided with in inner of threading pipe.

As an optimal technical scheme of the utility model, wire and PCB board electric connection.

As a preferred technical scheme of the utility model, a lateral wall fixed mounting of second reinforcement cap has waterproof cover, go up the line ball board and lie in waterproof cover's inner with lower line ball board.

As an optimized technical scheme of the utility model, a plurality of wire pressing groove has been seted up to the bottom mounting of going up the line ball board.

As an optimal technical scheme of the utility model, it sets up to the L shape to push down the line board.

Compared with the prior art, the beneficial effects of the utility model are that: the utility model relates to a waterproof lithium battery protection board, can prevent through setting up the PCB board that water from getting into the PCB inboard and causing the PCB board to burn out in the casing, the mode fixed connection that lower casing and last casing are connected through the block, and the junction is provided with sealed the pad, can improve waterproof performance, first reinforcement cap and the second reinforcement cap through casing both ends suit all can consolidate casing and the connection of last casing down, overall structure's compressive property can also be improved, can fix the wire through last line ball board and line ball board down, prevent that the wire from tearing apart, through waterproof cover and pyrocondensation pipe all can improve the leakproofness that the wire stretches out the position, water-proof effects is better.

Drawings

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

fig. 2 is a schematic diagram of the explosion structure of the present invention;

fig. 3 is a schematic structural diagram of the upper housing of the present invention.

In the figure: 1. a lower housing; 101. a square snap ring; 2. an upper housing; 201. a square clamping groove; 3. a wire pressing plate is arranged; 301. pressing a wire groove; 4. pressing the wire pressing plate; 401. threading holes; 5. a threading tube; 6. heat shrink tubing; 7. a wire; 8. a first reinforcement cap; 9. a second reinforcement cap; 10. a waterproof jacket; 11. and (7) a PCB board.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-3, the present invention provides a waterproof lithium battery protection plate, which comprises a housing, wherein the housing comprises a lower housing 1 and an upper housing 2, a square snap ring 101 is fixedly disposed on the top of the lower housing 1, a square snap groove 201 is fixedly disposed on the bottom of the upper housing 2, a sealing gasket is fixedly disposed on the inner end of the square snap groove 201, the sealing gasket can improve the waterproof property of the joint, the lower housing 1 and the upper housing 2 are connected by the snap ring 101 and the square snap groove 201, an upper wire pressing plate 3 is fixedly disposed on one side wall of the upper housing 2, a lower wire pressing plate 4 is fixedly disposed on one side wall of the lower housing 1, the bottom of the upper wire pressing plate 3 is connected with the top of the lower wire pressing plate 4 by snap fit, a plurality of wire holes 401 are disposed on one side of the inner end of the lower wire holes 401, wire tubes 5 are fixedly disposed on the inner ends of the plurality of the, the pyrocondensation pipe 6 can contract after being heated to improve its leakproofness with the 7 junctions of inner wire, the one end cover of casing is equipped with first reinforcement cap 8, and the other end cover of casing is equipped with second reinforcement cap 9, and first reinforcement cap 8 and second reinforcement cap 9 all can be consolidated the connection of casing 1 and last casing 2 down, can also improve overall structure's compressive property, and the inner fixed mounting of casing 1 has PCB board 11 down.

Preferably, the fixed wire 7 that is provided with in inner of threading pipe 5,

wire

7 and 11 electric connection of PCB board, be connected wire 7 and lithium cell during the use, make PCB board 11 can carry out charge-discharge protection to the lithium cell, a lateral wall fixed mounting of second reinforcement cap 9 has waterproof cover 10, waterproof cover 10 is made for the rubber material, can seal up the junction of last line ball board 3 and line ball board 4 down, it is located the inner of waterproof cover 10 with line ball board 4 to go up line ball board 3, the bottom mounting of going up line ball board 3 has seted up a plurality of line ball groove 301, line ball groove 301 is used for fixing wire 7, line ball board 4 sets up to the L shape down, make the joint of going up line ball board 3 and line ball board 4 be located waterproof cover 10 inner darker position, be difficult for intaking.

When specifically using, the utility model relates to a waterproof lithium battery protection board, the mode fixed connection that casing 1 and last casing 2 are connected through the block down, and the junction is provided with sealed the pad, can improve waterproof performance, first reinforcement cap 8 and second reinforcement cap 9 through casing both ends suit all can consolidate casing 1 and last casing 2's connection down, overall structure's compressive property can also be improved, can fix wire 7 through last line ball board 3 and line ball board 4 down, prevent that wire 7 from tearing apart, can all improve the leakproofness that wire 7 stretches out the position through waterproof cover 10 and pyrocondensation pipe 6.

In the description of the present invention, it should be understood that the indicated orientation or positional relationship is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present invention.

In the present invention, unless otherwise explicitly specified or limited, for example, it may be fixedly connected, detachably connected, or integrated; can be mechanically or electrically connected; they may be directly connected or indirectly connected through an intermediate medium, and may be connected through the inside of two elements or in an interaction relationship between two elements, unless otherwise specifically defined, and the specific meaning of the above terms in the present invention will be understood by those skilled in the art according to specific situations.

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

Claims

1. The waterproof lithium battery protection plate comprises a shell and is characterized in that the shell comprises a lower shell (1) and an upper shell (2), a square snap ring (101) is fixedly arranged at the top of the lower shell (1), a square clamping groove (201) is fixedly arranged at the bottom of the upper shell (2), a sealing gasket is fixedly arranged at the inner end of the square clamping groove (201), the lower shell (1) and the upper shell (2) are connected in a clamping manner through the square snap ring (101) and the square clamping groove (201), an upper wire pressing plate (3) is fixedly arranged on one side wall of the upper shell (2), a lower wire pressing plate (4) is fixedly arranged on one side wall of the lower shell (1), the bottom of the upper wire pressing plate (3) is connected with the top of the lower wire pressing plate (4) in a clamping manner, a plurality of threading holes (401) are formed in one side of the inner end of the lower wire pressing plate (4), and threading pipes (5) are fixedly arranged at the inner ends of the threading, one side of the outer wall of the plurality of threading pipes (5) is sleeved with a heat-shrinkable pipe (6), one end of the shell is sleeved with a first reinforcing cap (8), the other end of the shell is sleeved with a second reinforcing cap (9), and a PCB (printed circuit board) is fixedly mounted at the inner end of the lower shell (1).

2. The waterproof lithium battery protection sheet as claimed in claim 1, wherein: the inner end of the threading pipe (5) is fixedly provided with a lead (7).

3. The waterproof lithium battery protection sheet as claimed in claim 2, wherein: the lead (7) is electrically connected with the PCB (11).

4. The waterproof lithium battery protection sheet as claimed in claim 1, wherein: a waterproof sleeve (10) is fixedly mounted on one side wall of the second reinforcing cap (9), and the upper line pressing plate (3) and the lower line pressing plate (4) are located at the inner end of the waterproof sleeve (10).

5. The waterproof lithium battery protection sheet as claimed in claim 1, wherein: the bottom end of the upper wire pressing plate (3) is fixedly provided with a plurality of wire pressing grooves (301).

6. The waterproof lithium battery protection sheet as claimed in claim 1, wherein: the lower wire pressing plate (4) is arranged in an L shape.