CN218215529U

CN218215529U - Lithium battery protection device for preventing short circuit

Info

Publication number: CN218215529U
Application number: CN202222205362.7U
Authority: CN
Inventors: 宋光春
Original assignee: Shenzhen Jinlonggewang Electronic Co ltd
Current assignee: Shenzhen Jinlonggewang Electronic Co ltd
Priority date: 2022-08-22
Filing date: 2022-08-22
Publication date: 2023-01-03
Anticipated expiration: 2032-08-22

Abstract

The utility model discloses a prevent lithium battery protection device of short circuit, which comprises an outer shell, the inside fixed mounting of shell has the inner shell, it is sealed to be formed with the cooling chamber between shell and the inner shell, slidable mounting has the C shaped plate about the inner wall of inner shell, be equipped with elevating system between inner shell and the C shaped plate, the surface slidable mounting of C shaped plate has the backup pad, be equipped with supporting mechanism between backup pad and the C shaped plate. The utility model discloses a place the lithium cell between C shaped plate and backup pad, make the roof of C shaped plate and backup pad press from both sides tightly the lithium cell, avoid the lithium cell to produce when carrying the use and rock, lead to the lithium cell housing damage, cause the danger of short circuit; through the cooling intracavity packing coolant liquid between shell and inner shell for the heat when the coolant liquid can be to the lithium cell use is cooled down, prevents that the lithium cell is inside because the overheated emergence short circuit of temperature.

Description

Lithium battery protection device for preventing short circuit

Technical Field

The utility model relates to a lithium cell technical field especially relates to a prevent lithium cell protection device of short circuit.

Background

Lithium batteries can be broadly classified into two types: lithium metal batteries and lithium ion batteries. Lithium ion batteries do not contain lithium in a metallic state and are rechargeable, and lithium batteries are devices that directly convert chemical energy of internal active substances into electric energy through electrochemical redox reactions.

The existing lithium battery can generate higher heat when in use, and if the heat can not be dissipated in time, the lithium battery is easy to generate short circuit due to overhigh temperature, and the normal use of the lithium battery is influenced.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the defects existing in the prior art and providing a short-circuit-proof lithium battery protection device.

In order to realize the purpose, the utility model adopts the following technical scheme:

the utility model provides a prevent lithium battery protection device of short circuit, includes the shell, the inside fixed mounting of shell has the inner shell, it is sealed to be formed with the cooling chamber between shell and the inner shell, slidable mounting has the C shaped plate about the inner wall of inner shell, be equipped with elevating system between inner shell and the C shaped plate, the surface slidable mounting of C shaped plate has the backup pad, be equipped with supporting mechanism between backup pad and the C shaped plate.

As a further scheme of the utility model, elevating system includes that fixed mounting is close to the fixed plate of its bottom surface in the C shaped plate, the inner wall fixed mounting that the inner shell is close to its top has the limiting plate, rotate between the diapire of limiting plate and inner shell and install lifting screw, lifting screw's bottom run through the lower surface of fixed plate and rather than threaded connection, lifting screw's top is run through the upper surface and the fixed mounting of limiting plate and is shaken the wheel, be equipped with spacing subassembly between limiting plate and the inner shell.

As a further aspect of the utility model, spacing subassembly includes two gag lever posts of symmetry fixed mounting between the lower surface of limiting plate and inner shell diapire, two the gag lever post runs through the surface of fixed plate and rather than slidable mounting.

As a further aspect of the utility model, supporting mechanism includes even fixed mounting in many spinal branchs vaulting pole of backup pad lower surface, many the lower surface of C shaped plate is run through to the bottom of bracing piece and rather than slidable mounting, many the bottom fixed mounting of bracing piece has the spacing ring, the surface of bracing piece is equipped with the compression subassembly.

As a further proposal of the utility model, the compression assembly comprises a compression spring sleeved on the outer surface of the support rod, and the compression spring is arranged between the lower surface of the support plate and the bottom wall of the C-shaped plate.

As a further proposal of the utility model, the upper surface of the supporting plate is fixedly provided with a rubber pad.

As a further scheme of the utility model, the even fixed mounting in surface of shell has a plurality of radiating fin, the surface that the shell is close to its top one side is run through and has been seted up annotates the liquid hole, and annotates the downthehole sealing plug that is equipped with of liquid, the surface that the shell is close to sealing plug one side is equipped with the observation hole.

The utility model has the advantages that:

1. drive the whole downstream of C shaped plate through the lifting screw, make the lithium cell put into the inner shell, after the bottom of many spinal branchs vaulting poles of fixed surface installation offsets with the diapire of inner shell under the backup pad, the backup pad will stop downstream, thereby make the lithium cell also stop thereupon and descend, continue to rotate and shake the wheel, make the C shaped plate can continue downstream, the roof that makes the C shaped plate can press from both sides tightly the lithium cell with the backup pad, avoid the lithium cell to produce when carrying the use and rock, lead to lithium battery housing damage, cause the danger of short circuit.

2. Through the cooling intracavity packing coolant liquid between shell and inner shell for the heat when the coolant liquid can be to the lithium cell use is cooled down, prevents that the lithium cell is inside because the overheated emergence short circuit of temperature.

Drawings

Fig. 1 is a schematic view of an overall structure of a short-circuit prevention lithium battery protection device provided by the present invention;

fig. 2 is a schematic cross-sectional structural view of a short-circuit prevention lithium battery protection device provided by the present invention;

fig. 3 is the utility model provides a prevent lithium battery protection device's of short circuit sectional structure schematic diagram.

In the figure: 1. a housing; 2. an inner shell; 3. a heat dissipating fin; 4. a C-shaped plate; 5. a fixing plate; 6. a limiting plate; 7. a lifting screw; 8. a limiting rod; 9. rocking the wheel; 10. a support bar; 11. a support plate; 12. a limiting ring; 13. a compression spring; 14. a rubber pad; 15. positive and negative binding posts; 16. an observation hole; 17. and (4) sealing the plug.

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.

It should be noted that, in the present application, the embodiments and features of the embodiments may be combined with each other without conflict. The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.

Examples

Referring to fig. 1-3, a lithium battery protection device for preventing short circuit comprises an outer shell 1, an inner shell 2 is fixedly installed inside the outer shell 1, a cooling cavity is formed between the outer shell 1 and the inner shell 2 in a sealed mode, compressed cooling liquid is filled in the cooling cavity, a C-shaped plate 4 is installed on the inner wall of the inner shell 2 in a vertical sliding mode, positive and negative binding posts 15 are fixedly installed at the top end of the C-shaped plate 4, the positive and negative binding posts 15 are respectively connected with positive and negative poles of a lithium battery through wires, external equipment is directly connected with the positive and negative binding posts 15, a lifting mechanism is arranged between the inner shell 2 and the C-shaped plate 4, a supporting plate 11 is installed on the outer surface of the C-shaped plate 4 in a sliding mode, and a supporting mechanism is arranged between the supporting plate 11 and the C-shaped plate 4.

In this embodiment, elevating system includes that fixed mounting is close to its bottom surface's fixed plate 5 in C-shaped plate 4, and inner wall fixed mounting that inner shell 2 is close to its top has limiting plate 6, rotates between limiting plate 6 and the diapire of inner shell 2 and installs lifting screw 7, lifting screw 7's bottom run through the lower surface of fixed plate 5 and rather than threaded connection, lifting screw 7's top run through the upper surface and the fixed mounting of limiting plate 6 have rocking wheel 9, be equipped with spacing subassembly between limiting plate 6 and the inner shell 2.

In this embodiment, spacing subassembly includes two gag lever posts 8 of symmetry fixed mounting between the lower surface of limiting

plate

6 and 2 diapire of inner shell, and two gag lever posts 8 run through the surface of fixed plate 5 and rather than slidable mounting, and two gag lever posts 8 can support fixed plate 5, make C-shaped plate 4 can keep vertical reciprocating.

In this embodiment, the supporting mechanism includes a plurality of supporting rods 10 evenly fixedly mounted on the lower surface of the supporting plate 11, the bottom ends of the plurality of supporting rods 10 penetrate through the lower surface of the C-shaped plate 4 and are slidably mounted on the lower surface of the C-shaped plate, the bottom ends of the plurality of supporting rods 10 are fixedly mounted with a limiting ring 12, and the outer surfaces of the supporting rods 10 are provided with compression assemblies.

In this embodiment, compression assembly locates the compression spring 13 of bracing piece 10 surface including the cover, compression spring 13 sets up between the lower surface of backup pad 11 and the diapire of C shaped plate 4, through set up compression spring 13 between the diapire of backup pad 11 and C shaped plate 4, make C shaped plate 4 when ascending, compression spring 13's elasticity can promote backup pad 11 and rise thereupon, so that when placing the lithium cell in backup pad 11, cushion the lithium cell, prevent to produce the striking between lithium cell and the backup pad 11, cause the damage to the lithium cell.

In this embodiment, the rubber pad 14 is fixedly mounted on the upper surface of the supporting plate 11, so that when the lithium battery is clamped, the rubber pad 14 can buffer the lithium battery to a certain extent, and the lithium battery is prevented from being extruded and deformed.

In the embodiment, the plurality of radiating fins 3 are uniformly and fixedly arranged on the outer surface of the shell 1, and the radiating fins 3 can quickly discharge heat absorbed by the cooling liquid to the air, so that the cooling effect of the cooling liquid is improved; the surface that shell 1 is close to its top one side is run through and has been seted up notes liquid hole, and annotates the downthehole sealing plug 17 that is equipped with of liquid, and the surface that shell 1 is close to sealing plug 17 one side is equipped with observation hole 16, and observation hole 16 seals through toughened glass to the user observes the liquid level of cooling liquid in the shell 1.

When using, extract sealing plug 17, can add the coolant liquid through annotating the cooling chamber of liquid pore pair between shell 1 and the inner shell 2, guarantee the sufficiency of coolant liquid to better cool down the lithium cell.

From the above description, it can be seen that the above-mentioned embodiments of the present invention achieve the following technical effects: when the lithium battery lifting device is used, the rocking wheel 9 is rotated to enable the rocking wheel 9 to drive the lifting screw 7 to rotate, the lifting screw 7 drives the C-shaped plate 4 which is in threaded connection with the lifting screw 7 to move upwards integrally until the supporting plate 11 rises to the upper surface of the shell 1, at the moment, a lithium battery is placed on the supporting plate 11, the positive and negative poles of the lithium battery are connected with the positive and negative binding posts 15 arranged at the top end of the C-shaped plate 4 through leads, after the lithium battery is placed, the rocking wheel 9 is rotated reversely, the rocking wheel 9 drives the C-shaped plate 4 to move downwards integrally through the lifting screw 7, the lithium battery is placed in the inner shell 2, after the bottom ends of a plurality of supporting rods 10 fixedly installed on the lower surface of the supporting plate 11 abut against the bottom wall of the inner shell 2, the supporting plate 11 stops moving downwards, the lithium battery stops descending along with the supporting plate, the rocking wheel 9 continues to rotate, the C-shaped plate 4 can continue to move downwards, the top wall of the C-shaped plate 4 and the supporting plate 11 can clamp the lithium battery tightly, and the lithium battery is prevented from shaking when the lithium battery is carried and used, so that the danger of the lithium battery is caused by damage and short circuit; through filling the coolant liquid in the cooling chamber between shell 1 and inner shell 2 for the heat when the coolant liquid can use the lithium cell is cooled down, prevents that the lithium cell is inside because the overheated short circuit that takes place of temperature.

For ease of description, spatially relative terms such as "over 8230," "upper surface," "above," and the like may be used herein to describe the spatial positional relationship of one device or feature to other devices or features as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if a device in the figures is turned over, devices described as "above" or "on" other devices or configurations would then be oriented "below" or "under" the other devices or configurations. Thus, the exemplary terms "at 8230; \8230; above" may include both orientations "at 8230; \8230; above" and "at 8230; \8230; below". The device may be otherwise oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an", and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.

It should be noted that the terms "first," "second," and the like in the description and claims of this application and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the application described herein are, for example, capable of operation in sequences other than those illustrated or otherwise described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a prevent lithium battery protection device of short circuit, includes shell (1), its characterized in that, the inside fixed mounting of shell (1) has inner shell (2), it is sealed to be formed with the cooling chamber between shell (1) and inner shell (2), slidable mounting has C shaped plate (4) about the inner wall of inner shell (2), be equipped with elevating system between inner shell (2) and C shaped plate (4), the surface slidable mounting of C shaped plate (4) has backup pad (11), be equipped with supporting mechanism between backup pad (11) and C shaped plate (4).

2. The lithium battery protection device of claim 1, wherein the lifting mechanism comprises a fixing plate (5) fixedly mounted on the C-shaped plate (4) and close to the outer surface of the bottom of the C-shaped plate, a limiting plate (6) is fixedly mounted on the inner wall of the inner shell (2) close to the top of the inner shell, a lifting screw (7) is rotatably mounted between the bottom walls of the limiting plate (6) and the inner shell (2), the bottom end of the lifting screw (7) penetrates through the lower surface of the fixing plate (5) and is in threaded connection with the lower surface, the top end of the lifting screw (7) penetrates through the upper surface of the limiting plate (6) and is fixedly mounted with a rocking wheel (9), and a limiting assembly is arranged between the limiting plate (6) and the inner shell (2).

3. The short-circuit prevention lithium battery protection device as claimed in claim 2, wherein the limiting component comprises two limiting rods (8) symmetrically and fixedly installed between the lower surface of the limiting plate (6) and the bottom wall of the inner shell (2), and the two limiting rods (8) penetrate through the outer surface of the fixing plate (5) and are slidably installed with the outer surface.

4. The short-circuit prevention lithium battery protection device as claimed in claim 1, wherein the support mechanism comprises a plurality of support rods (10) uniformly and fixedly mounted on the lower surface of a support plate (11), the bottom ends of the plurality of support rods (10) penetrate through the lower surface of the C-shaped plate (4) and are slidably mounted with the C-shaped plate, the bottom ends of the plurality of support rods (10) are fixedly mounted with a limiting ring (12), and the outer surface of the support rods (10) is provided with a compression assembly.

5. The short-circuit prevention lithium battery protection device as claimed in claim 4, wherein the compression assembly comprises a compression spring (13) sleeved on the outer surface of the support rod (10), and the compression spring (13) is disposed between the lower surface of the support plate (11) and the bottom wall of the C-shaped plate (4).

6. The short-circuit prevention lithium battery protection device as claimed in claim 1, wherein a rubber pad (14) is fixedly mounted on the upper surface of the support plate (11).

7. The lithium battery protection device for preventing short circuit according to claim 1, wherein a plurality of heat dissipation fins (3) are uniformly and fixedly mounted on the outer surface of the housing (1), a liquid injection hole is formed in the outer surface of the housing (1) close to one side of the top of the housing, a sealing plug (17) is arranged in the liquid injection hole, and an observation hole (16) is arranged in the outer surface of the housing (1) close to one side of the sealing plug (17).