CN213278167U

CN213278167U - Lithium battery protection board with elastic protection structure

Info

Publication number: CN213278167U
Application number: CN202021772388.4U
Authority: CN
Inventors: 齐海群; 钱勇; 兰顺忠; 赵伦青
Original assignee: Anhui Rijing Control Technology Co ltd
Current assignee: Anhui Rijing Control Technology Co ltd
Priority date: 2020-08-24
Filing date: 2020-08-24
Publication date: 2021-05-25
Anticipated expiration: 2030-08-24

Abstract

The utility model relates to a lithium battery protection shield technical field specifically is a lithium battery protection shield with elasticity protective structure. When needing to take off lithium battery protection shield, will draw the piece to upwards lift, draw the piece to drive the connecting rod, the connecting rod drives the kicking block and shifts up, after the fixture block does not have the kicking block restriction, the torsional spring pulls open the cardboard through self torsion, make the protection shield can take out, when installing lithium battery protection shield, the cardboard is opened, the protection shield is put into in the limiting plate, push the spacing inslot with the fixture block in the cardboard again, the fixture block is with kicking block jack-up, the kicking block atress moves up, the kicking block promotes the second spring and shifts up, second spring atress deformation, after the fixture block gets into the spacing groove completely, the second spring pushes down the kicking block, the kicking block restricts the fixture block, cardboard cooperation spacing groove is with the protection shield restriction in the limiting plate, the utility model discloses can conveniently install and take off the protection.

Description

Lithium battery protection board with elastic protection structure

Technical Field

The utility model relates to a lithium battery protection shield technical field specifically is a lithium battery protection shield with elasticity protective structure.

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, the uniform charging of the single batteries of the battery pack is realized, and the charging effect under 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 lithium battery protection board can produce slight vibrations at the during operation, and vibrations can lead to the life of lithium battery protection board impaired, and current lithium battery protection board does not have corresponding protective structure yet to the installation of lithium battery protection board does not have very trouble with taking off, and lithium battery protection board can give off the heat in the time of in addition in the work, and current lithium battery protection board does not have corresponding heat abstractor.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a lithium battery protection shield with elasticity protective structure to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a lithium battery protection shield with elasticity protective structure, includes the bottom plate, the upper end is provided with damping device, damping device upper end fixed connection limiting plate, joint protection shield in the middle of the limiting plate is inside, and the inside outside of limiting plate is provided with the heating panel, and limiting plate left side bottom is provided with left notch, the inside center pin that is provided with of left notch, and the torsional spring is cup jointed in the center pin outside, torsional spring right side joint cardboard, and the cardboard outside is provided with right notch, cardboard upper end fixed connection fixture block, limiting plate right side bottom is provided with the spacing groove, and the spacing inslot is provided with the connecting rod, and the connecting rod upper end is provided with draws the.

Preferably, damping device includes base, support column, fixed plate, loop bar, shock attenuation chamber, second spring and pulley, base bottom fixed connection bottom plate top, base top fixed connection support column, and the support column upper end is cup jointed in the shock attenuation intracavity, and the shock attenuation chamber is located the loop bar inside, and the shock attenuation chamber top is provided with the second spring, second spring bottom fixed connection fixed plate top, and the loop bar bottom is provided with the pulley.

Preferably, the top of the support column is fixedly connected with the bottom of the fixing plate, and the top of the second spring is fixedly connected with the loop bar.

Preferably, the top end and the bottom end of the protection plate are both provided with a heat dissipation plate, and the heat dissipation plate is composed of heat dissipation fins.

Preferably, the center pin runs through right notch and extends to the outside, limiting plate is connected to the torsional spring left side joint.

Preferably, the connecting rod runs through the outside that the limiting plate extends, and first spring upper end fixed connection limiting plate, kicking block left side are provided with the inclined plane, and the fixture block right side is provided with the inclined plane.

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

1. the work of lithium cell protection shield produces vibrations, and the limiting plate is given with vibrations transmission to the protection shield, and the loop bar in damping device is given with vibrations to the limiting plate. The loop bar will shake and transmit for the second spring, and the second spring will shake and inhale for vibrations can not influence the work of lithium cell, and make the lithium cell protection shield reduce the damage that receives vibrations, have increased the life of lithium cell protection shield.

2. When needing to take off lithium battery protection shield, will draw the piece to upwards lift, draw the piece to drive the connecting rod, the connecting rod drives the kicking block and shifts up, after the fixture block does not have the kicking block restriction, the torsional spring pulls open the cardboard through self torsion, make the protection shield can take out, when installing lithium battery protection shield, the cardboard is opened, the protection shield is put into in the limiting plate, push the spacing inslot with the fixture block in the cardboard again, the fixture block is with kicking block jack-up, the kicking block atress moves up, the kicking block promotes the second spring and shifts up, second spring atress deformation, after the fixture block gets into the spacing groove completely, the second spring pushes down the kicking block, the kicking block restricts the fixture block, cardboard cooperation spacing groove is with the protection shield restriction in the limiting plate, the utility model discloses can conveniently install and take off the protection.

3. The protection shield during operation can give off the heat, can distribute away the heat through the heating panel about the protection shield for the short circuit can not appear because of high temperature in the protection shield.

Drawings

FIG. 1 is a cross-sectional view of the present invention;

FIG. 2 is a top sectional view of the present invention;

FIG. 3 is a schematic view of the shock absorbing structure of the present invention;

FIG. 4 is a schematic view of the torsion spring structure of the present invention;

fig. 5 is a schematic diagram of the structure of the fixture block of the present invention.

In the figure: the damping device comprises a bottom plate 1, a damping device 2, a limiting plate 3, a protective plate 4, a heat dissipation plate 5, a clamping plate 6, a central shaft 7, a right notch 8, a torsion spring 9, a left notch 10, a clamping block 11, a limiting groove 12, a connecting rod 13, a pulling block 14, a first spring 15, a top block 16, a base 21, a supporting column 22, a fixed plate 23, a sleeve rod 24, a damping cavity 25, a second spring 26 and a pulley 27.

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 to 5, the present invention provides a technical solution: the utility model provides a lithium battery protection board with elasticity protective structure, comprising a base plate 1, the upper end is provided with damping device 2, damping device 2 upper end fixed connection limiting plate 3, joint protection board 4 in the middle of limiting plate 3 inside, the inside outside of limiting plate 3 is provided with heating panel 5, limiting plate 3 left side bottom is provided with left notch 10, the inside center pin 7 that is provided with of left notch 10, torsional spring 9 is cup jointed in the 7 outside of center pin, torsional spring 9 right side joint cardboard 6, cardboard 6 outside is provided with right notch 8, 6 upper end fixed connection fixture blocks 11 of cardboard, 3 right side bottoms of limiting plate are provided with spacing groove 12, be provided with connecting rod 13 in the spacing groove 12, the connecting rod upper end is provided with draws

piece

14, 16 upper end centers of connecting rod 13 bottom fixed connection kicking.

Damping device 2 includes base 21, support column 22, fixed plate 23, loop bar 24, shock attenuation chamber 25, second spring 26 and

pulley

27, 1 top of base 21 bottom fixed connection bottom plate, base 21 top fixed connection support column 22, support column 22 upper end cup joints in shock attenuation chamber 25, shock attenuation chamber 25 is located inside loop bar 24, shock attenuation chamber 25 top is provided with second spring 26, second spring 26 bottom fixed connection fixed plate 23 top, loop bar 24 bottom is provided with pulley 27, can carry out the shock attenuation to protection shield 4.

The top of the supporting column 22 is fixedly connected with the bottom of the fixing plate 23, and the top of the second spring 26 is fixedly connected with the loop bar 24, so that the shock can be absorbed.

The top and the bottom of protection shield 4 all are provided with heating panel 5, and heating panel 5 comprises the fin, can dispel the heat for protection shield 4.

Center pin 7 runs through right notch 8 and extends to the outside, and limiting plate 3 is connected to the joint in the left side of torsional spring 9, can open cardboard 6 is automatic.

The connecting rod 13 runs through the outside that the limiting plate 3 extends, and first spring 15 upper end fixed

connection limiting plate

3, 16 left sides on kicking block are provided with the inclined plane, and the fixture block 11 right side is provided with the inclined plane, can make things convenient for fixture block 11 card to go into spacing groove 12.

The working principle is as follows:

the lithium battery protection board generates vibration during working, the protection board 4 transmits the vibration to the limiting board 3, and the limiting board 3 transmits the vibration to the loop bar 24 in the damping device 2. The loop bar 24 transmits the vibration to the second spring 26, and the second spring 26 absorbs the vibration so that the vibration does not affect the operation of the lithium battery.

When the lithium battery protection board needs to be taken down, pull block 14 and upwards lift, pull block 14 and drive connecting rod 13, connecting rod 13 drives ejector block 16 and upwards moves, after fixture block 11 does not have the restriction of ejector block 16, torsional spring 9 pulls open cardboard 6 through self torsion, make protection board 4 can take out, when installing the lithium battery protection board, cardboard 6 is opened, protection board 4 is put into limiting plate 3, push fixture block 11 in cardboard 6 into spacing groove 12 again, fixture block 11 jacks up ejector block 16, ejector block 16 atress upwards moves, ejector block 16 promotes second spring 15 and upwards moves, second spring 15 atress deformation, after fixture block 11 gets into spacing groove 12 completely, second spring 15 pushes down ejector block 16, ejector block 16 restricts fixture block 11, cardboard 6 cooperates limiting groove 12 to restrict protection board 4 in limiting plate 3.

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 utility model provides a lithium battery protection shield with elasticity protective structure, includes bottom plate (1), its characterized in that: the upper end of the damping device (2) is provided with a damping device, the upper end of the damping device (2) is fixedly connected with a limiting plate (3), the limiting plate (3) is internally clamped with a protection plate (4) in the middle, the outer side of the inner part of the limiting plate (3) is provided with a heat dissipation plate (5), the bottom of the left side of the limiting plate (3) is provided with a left notch (10), the inner part of the left notch (10) is provided with a central shaft (7), the outer side of the central shaft (7) is sleeved with a torsion spring (9), the right side of the torsion spring (9) is clamped with a clamping plate, limiting groove (12) is arranged at the bottom of the right side of the limiting plate (3), a connecting rod (13) is arranged in the limiting groove (12), a pulling block (14) is arranged at the upper end of the connecting rod, the bottom end of the connecting rod (13) is fixedly connected with the center of the upper end of an ejector block (16), and a first spring (15) is fixedly connected to the outer side of the upper end of the ejector block (16).

2. The lithium battery protection plate with an elastic protection structure as claimed in claim 1, wherein: damping device (2) are including base (21), support column (22), fixed plate (23), loop bar (24), shock attenuation chamber (25), second spring (26) and pulley (27), base (21) bottom fixed connection bottom plate (1) top, base (21) top fixed connection support column (22), support column (22) upper end cup joints in shock attenuation chamber (25), shock attenuation chamber (25) are located loop bar (24) inside, shock attenuation chamber (25) top is provided with second spring (26), second spring (26) bottom fixed connection fixed plate (23) top, loop bar (24) bottom is provided with pulley (27).

3. The lithium battery protection plate with the elastic protection structure as claimed in claim 2, wherein: the top of the supporting column (22) is fixedly connected with the bottom of the fixing plate (23), and the top of the second spring (26) is fixedly connected with the loop bar (24).

4. The lithium battery protection plate with an elastic protection structure as claimed in claim 1, wherein: the top end and the bottom end of the protection plate (4) are provided with heat dissipation plates (5), and the heat dissipation plates (5) are composed of heat dissipation fins.

5. The lithium battery protection plate with an elastic protection structure as claimed in claim 1, wherein: center pin (7) run through right notch (8) and extend to the outside, limiting plate (3) are connected to torsional spring (9) left side joint.

6. The lithium battery protection plate with an elastic protection structure as claimed in claim 1, wherein: the connecting rod (13) penetrates through the outer side of the extending limiting plate (3), the upper end of the first spring (15) is fixedly connected with the limiting plate (3), the left side of the ejector block (16) is provided with an inclined plane, and the right side of the clamping block (11) is provided with an inclined plane.