CN220774585U - Lithium battery pack protection board - Google Patents

Abstract

The utility model relates to the technical field of lithium batteries, in particular to a lithium battery pack protection plate, which comprises a protection main plate, a battery pack and clamping tongues, wherein clamping heads are fixedly connected to the side parts of the battery pack, a damping plate is movably arranged in the protection main plate, a rotating frame is fixedly arranged on the opposite surfaces of the inner bottom wall of the protection main plate and the damping plate, rotating heads are arranged on one side of the rotating frame, damping is fixedly arranged on the opposite surfaces of the two groups of rotating heads, and damping springs are arranged on the surfaces of the damping. The advantages are that: the chuck extrudees the block, places the group battery on the shock absorber plate, and protection mainboard downwardly moving when jolting takes place drives shock absorber plate downwardly moving, and the shock absorber plate downwardly moving makes two sets of rotating frame and rotor head distance shorten, and then makes the damping gradient change, makes the shock absorber spring receive the compression, slows down the vibrations of group battery, and the shock absorber plate is when jolting in the device, extrudees damping and shock absorber spring, can slow down the impact between group battery and the protection mainboard.

Description

Lithium battery pack protection board

Technical Field

The utility model relates to the technical field of lithium batteries, in particular to a lithium battery pack protection plate.

Background

At present, lithium batteries are widely used for equipment such as electric automobiles and electric bicycles, and the protection plates of the lithium batteries can be prevented from being damaged when the lithium batteries are charged and discharged due to overvoltage and overcurrent. Therefore, the stable operation of the protective plate of the lithium battery is related to the normal use and safety of the lithium battery pack, and the prior protective plate of the lithium battery has simple structure and poor fixing effect.

The protection board for lithium battery pack disclosed in chinese patent CN209766493U, this protection board for lithium battery pack, fixing device include can carry out the removal mainboard of back-and-forth movement, install the buckle piece above the removal mainboard, and the buckle piece stretches out from the fretwork area of holding tank bottom, and the buckle piece buckle is in the buckle groove of lithium battery pack. The utility model has more firm installation mode and longer service time, but the protective plate for the lithium battery pack has the following defects when solving the problems:

the device is installed damping device in the protection shield main part, is the lithium cell group bradyseism through damping device, and the buckle spare buckle is in the buckle inslot of lithium cell group in the device, and the lithium cell group can't remove after the buckle is connected, and then damping device loses absorbing effect, and damping device is when jolting, can't slow down the impact between lithium cell group and the protection shield main part.

Disclosure of Invention

The object of the present utility model is to solve at least one of the technical drawbacks mentioned in the background.

Therefore, an objective of the present utility model is to provide a protection board for a lithium battery pack, which is aimed at solving the problem that the lithium battery pack cannot move after the protection board for the lithium battery pack is connected by a buckle in the prior art, and further the damping device loses the damping effect.

In order to achieve the above object, an embodiment of an aspect of the present utility model provides a lithium battery pack protection board, including a protection main board, a battery pack and a clamping tongue, wherein a clamping head is fixedly connected to a side portion of the battery pack, a damping plate is movably provided in the protection main board, a rotating frame is fixedly mounted on opposite surfaces of an inner bottom wall of the protection main board and the damping plate, a rotating head is provided on one side of the rotating frame, damping is fixedly mounted on opposite surfaces of the two sets of rotating heads, and a damping spring is provided on a surface of the damping.

By the inside of above-mentioned arbitrary scheme preferred, the bayonet catch groove has been seted up to the inside of protection mainboard, the inside in bayonet catch groove is provided with the axis of rotation, the surface rotation of axis of rotation is provided with the bayonet catch, the surface of axis of rotation is provided with the torsional spring, the inside of protection mainboard is provided with the control groove, the inside slip of control groove is provided with the control strip, the top fixed mounting of control strip has the push away the bayonet catch, one side fixed mounting of bayonet catch has the brace, the bayonet catch can block the group battery, avoids group battery and protection mainboard separation.

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

1. the damping plate is when jolting in the device, extrudes damping and damping spring, can slow down the impact between group battery and the protection mainboard.

2. The device is stuck in the control groove after the control groove is formed by the control strip, and the battery pack is taken out conveniently.

Additional aspects and advantages of the utility model will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the utility model.

Drawings

The foregoing and/or additional aspects and advantages of the utility model will become apparent and may be better understood from the following description of embodiments taken in conjunction with the accompanying drawings in which:

FIG. 1 is a schematic view of a three-dimensional structure according to the present utility model;

FIG. 2 is a schematic view of a damping structure according to the present utility model;

fig. 3 is a schematic structural view of a tongue groove according to the present utility model.

Wherein: 10. the protection mainboard, 11, group battery, 111, chuck, 12, block tongue, 13, bradyseism board, 14, rotating frame, 15, rotating head, 16, damping, 17, bradyseism spring, 20, block tongue groove, 21, axis of rotation, 22, torsional spring, 23, control groove, 24, control strip, 241, push card strip, 25, brace.

Detailed Description

Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative and intended to explain the present utility model and should not be construed as limiting the utility model.

In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

As shown in fig. 1-3, a lithium battery pack protection board of this embodiment includes a protection main board 10, a battery pack 11 and a clamping tongue 12, the battery pack 11 is clamped with the inside of the protection main board 10, the device plugs the battery pack 11 into the protection main board 10 from above, a clamping head 111 is fixedly connected to the side part of the battery pack 11, the clamping head 111 presses the clamping tongue 12, the clamping tongue 12 is retracted into the protection main board 10, the clamping head 111 is clamped with the bottom of the clamping tongue 12, a damping plate 13 is movably arranged in the protection main board 10, the battery pack 11 is placed on the damping plate 13, when jolting occurs, the protection main board 10 moves downwards, the damping plate 13 is driven to move downwards, a rotating frame 14 is fixedly arranged on the opposite surfaces of the inner bottom wall of the protection main board 10 and the damping plate 13, a rotating head 15 is arranged on one side of the rotating frame 14, a damping 16 is fixedly arranged on the opposite surfaces of the two groups of rotating frames 14 and the rotating head 15, further the inclination of the damping 16 is changed, a damping spring 17 is arranged on the surface of the damping 16, and the damping spring 17 is used for reducing the vibration of the battery pack 11.

Example 1: when the battery pack 11 and the protection main board 10 need to be separated, the inside of the protection main board 10 is provided with a clamping tongue groove 20, the inside of the clamping tongue groove 20 is provided with a rotating shaft 21, the surface of the rotating shaft 21 is provided with a clamping tongue 12 in a rotating manner, the surface of the rotating shaft 21 is provided with a torsion spring 22, one end of the torsion spring 22 is abutted with the inner wall of the clamping tongue groove 20, the torsion spring 22 is abutted with the surface of the clamping tongue 12, the inside of the protection main board 10 is provided with a control groove 23, one side of the control groove 23 is provided with an inclined surface, the inside of the control groove 23 is slidably provided with a control strip 24, the control strip 24 is inserted into the inside of the control groove 23, then the control strip 24 is slightly rotated to enable the control strip 24 to be abutted against the inclined surface of the control groove 23, the top of the control strip 24 is fixedly provided with a push clamping strip 241, the push clamping strip 241 is pushed down, the push clamping strip 241 drives the control strip 24 to move downwards, one side of the clamping tongue 12 is fixedly provided with a brace 25, the control strip 25 is clamped on the inner top wall of the control groove 23, the control strip 24 is fixedly installed with the brace 25, the control strip 25 pulls the clamping tongue 12 to rotate, and the clamping tongue 12 is extruded into the clamping tongue 20, and the clamping tongue 20 is fixedly arranged in the clamping groove 20.

The working principle of the utility model is as follows: in the course of the use of the device,

1. the device is with battery pack 11 from the top in inserting protection mainboard 10, in the clamping head 111 extrusion latch 12 makes latch 12 retract protection mainboard 10, place battery pack 11 on cushioning board 13, protection mainboard 10 moves down when jolting takes place, drives cushioning board 13 and moves down, and cushioning board 13 moves down and makes two sets of rotating frame 14 and rotating head 15 distance shorten, and then makes damping 16 gradient change, makes cushioning spring 17 receive the compression, slows down the vibrations of battery pack 11.

2. When the battery pack 11 and the protection main board 10 need to be separated, the push clamping bar 241 is pressed down, the push clamping bar 241 drives the control bar 24 to move downwards, the control bar 24 is inserted into the control groove 23, then the control bar 24 is slightly rotated to enable the control bar 24 to be attached to the inclined surface of the control groove 23 and clamped on the inner top wall of the control groove 23, the control bar 24 drives the brace 25 to move, the brace 25 pulls the clamping tongue 12 to rotate, and the clamping tongue 12 presses the torsion spring 22 and is retracted into the clamping tongue groove 20, so that the clamping tongue 12 is fixed in the clamping tongue groove 20.

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

1. the device is with battery pack 11 from the top in inserting protection mainboard 10, the clamping head 111 extrudees latch 12, make in the latch 12 withdraw protection mainboard 10, place battery pack 11 on cushioning board 13, protection mainboard 10 moves down when jolting takes place, drive cushioning board 13 move down, cushioning board 13 moves down and makes two sets of rotating frame 14 and rotating head 15 distance shorten, and then make damping 16 gradient change, make cushioning spring 17 receive the compression, the vibrations of battery pack 11 are slowed down, the device is middle cushioning board 13 when jolting, squeeze damping 16 and cushioning spring 17, impact between battery pack 11 and protection mainboard 10 can be slowed down.

2. When the battery pack 11 and the protection main board 10 need to be separated, the push clamping strip 241 is pressed down, the push clamping strip 241 drives the control strip 24 to move downwards, the control strip 24 is inserted into the control groove 23, then the control strip 24 is slightly rotated to enable the control strip 24 to be attached to the inclined plane of the control groove 23 and clamped on the inner top wall of the control groove 23, the control strip 24 drives the brace 25 to move, the brace 25 pulls the clamping tongue 12 to rotate, the clamping tongue 12 extrudes the torsion spring 22 and is retracted into the clamping tongue groove 20, the clamping tongue 12 is fixed in the clamping tongue groove 20, the device is attached to the inclined plane of the control groove 23 through the control strip 24 and then is clamped in the control groove 23, and the battery pack is convenient to take out.

Claims (7)

1. The utility model provides a lithium battery pack protection shield, its characterized in that, including protection mainboard (10), group battery (11) and latch (12), lateral part fixedly connected with dop (111) of group battery (11), the inside activity of protection mainboard (10) is provided with bradyseism board (13), the interior bottom wall of protection mainboard (10) and the relative face fixed mounting of bradyseism board (13) have rotating turret (14), one side of rotating turret (14) is provided with rotating head (15), two sets of the relative face fixed mounting of rotating head (15) has damping (16), the surface of damping (16) is provided with bradyseism spring (17).

2. The lithium battery pack protection plate according to claim 1, wherein the clamping head (111) is clamped with the bottom of the clamping tongue (12).

3. The lithium battery pack protection plate according to claim 1, wherein the battery pack (11) is engaged with the inside of the protection main plate (10).

4. The lithium battery pack protection plate according to claim 1, wherein a tongue groove (20) is formed in the protection main plate (10), a rotating shaft (21) is arranged in the tongue groove (20), a clamping tongue (12) is rotatably arranged on the surface of the rotating shaft (21), a torsion spring (22) is arranged on the surface of the rotating shaft (21), a control groove (23) is formed in the protection main plate (10), a control strip (24) is arranged in the control groove (23) in a sliding manner, a clamping strip (241) is fixedly arranged at the top of the control strip (24), and a brace (25) is fixedly arranged on one side of the clamping tongue (12).

5. The lithium battery pack protection plate according to claim 4, wherein one end of the torsion spring (22) abuts against an inner wall of the tongue groove (20), and the torsion spring (22) abuts against a surface of the tongue (12).

6. The lithium battery pack protection plate according to claim 4, characterized in that one end of the pull strip (25) is fixedly mounted with the control strip (24).

7. The lithium battery pack protection plate according to claim 4, characterized in that one side of the control groove (23) is provided with a bevel.