CN112054139A

CN112054139A - Lithium battery protection device

Info

Publication number: CN112054139A
Application number: CN202010941344.8A
Authority: CN
Inventors: 陈波; 周允; 周鑫; 邰文武; 夏晓冬; 章海龙; 张勇
Original assignee: Nantong Yineng Energy Technology Co ltd
Current assignee: Nantong Yineng Energy Technology Co ltd
Priority date: 2020-09-09
Filing date: 2020-09-09
Publication date: 2020-12-08

Abstract

The invention relates to the technical field of lithium batteries, and discloses a lithium battery protection device which comprises a shell, wherein a vacuum cavity is arranged inside the shell, supporting blocks are fixedly connected inside the vacuum cavity, two air guide fans which are fixedly connected to the bottom of the shell and extend into the shell, fixing seats are fixedly connected to the left side and the right side of the shell, limiting plates are fixedly connected to the left side wall and the right side wall of an inner cavity of the shell, sliding rods are fixedly connected to the tops of the two limiting plates, and sliding blocks are movably connected to the outer sides of the two sliding rods. This lithium battery protection device possesses advantages such as heat dissipation and shock-absorbing function, has solved prior art, adopts the mode at the outside cladding casing of lithium cell to protect the lithium cell usually, but the simple structure of shell can not play heat dissipation and absorbing effect to the lithium cell, and current lithium cell has stolen risk, like lithium cell for the electric motor car, leads to the poor problem of protectiveness of casing.

Description

Lithium battery protection device

Technical Field

The invention relates to the technical field of lithium batteries, in particular to a lithium battery protection device.

Background

Lithium batteries are batteries which use non-aqueous electrolyte solution and take lithium metal or lithium alloy as positive/negative electrode materials, the lithium metal batteries are firstly proposed and researched by Gilbert N.Lewis in 1912, and M.S. Whittingham is proposed and researched in the 70 th century 20, because the chemical properties of the lithium metal are very active, the lithium metal is processed, stored and used, the requirement on the environment is very high, and the lithium batteries become mainstream with the development of scientific technology, and the lithium batteries can be roughly divided into two types: lithium metal batteries and lithium ion batteries, the lithium ion batteries do not contain metallic lithium and can be charged, the fifth generation products of rechargeable batteries, namely the lithium metal batteries, are produced in 1996, the safety, the specific capacity, the self-discharge rate and the cost performance ratio of the rechargeable batteries are all superior to those of the lithium ion batteries, and only a few national companies produce the lithium metal batteries due to the high technical requirement limit of the rechargeable batteries.

Among the prior art, adopt the mode of cladding the casing in the lithium cell outside usually to protect the lithium cell, but the simple structure of shell can not play heat dissipation and absorbing effect to the lithium cell, and current lithium cell has stolen risk, like the lithium cell for the electric motor car, leads to the protectiveness of casing poor, so provides a lithium cell protection device and solves the above-mentioned problem that proposes.

Disclosure of Invention

Technical problem to be solved

Aiming at the defects of the prior art, the invention provides a lithium battery protection device which has the advantages of heat dissipation and shock absorption functions and the like, and solves the problems that in the prior art, a shell is usually coated outside a lithium battery to protect the lithium battery, but the shell has a simple structure and cannot perform the heat dissipation and shock absorption functions on the lithium battery, and the existing lithium battery has the risk of being stolen, such as a lithium battery for an electric vehicle, so that the shell has poor protection performance.

(II) technical scheme

In order to achieve the purpose of having the functions of heat dissipation and shock absorption, the invention provides the following technical scheme: a lithium battery protection device comprises a shell, wherein a vacuum cavity is arranged inside the shell, supporting blocks are fixedly connected inside the vacuum cavity, two air guide fans extending into the shell are fixedly connected to the bottom of the shell, fixing seats are fixedly connected to the left side and the right side of the shell, limiting plates are fixedly connected to the left side wall and the right side wall of an inner cavity of the shell, sliding rods are fixedly connected to the tops of the two limiting plates, sliding blocks are movably connected to the outer sides of the two sliding rods, a top cover is movably connected to the top of the shell, a frame block extending into the shell and extending to the outer sides of the two sliding rods is fixedly connected to the bottom of the top cover, first compression springs located on the outer sides of the two sliding rods are fixedly connected to the upper side and the lower side of the two sliding blocks, and a positioning shell is fixedly connected to, cushion pads are fixedly connected inside the two positioning shells, a lithium battery body is movably connected between the two cushion pads, a round cavity is arranged inside the top cover, two guide holes which are communicated with the round cavity are formed in the top of the top cover, an L-shaped block with one end penetrating through the frame block and extending into the shell is movably connected inside the two guide holes, push plates which are positioned above the top cover are fixedly connected on the tops of the two L-shaped blocks, round rods which extend into the round cavity are fixedly connected on the right side wall of the inner cavity of the L-shaped block on the left side and the left side wall of the inner cavity of the L-shaped block on the right side, second compression springs which are positioned in the round cavity are fixedly connected between the two L-shaped blocks, two password drive plates which are arranged outside the round rods and extend to the upper side and the lower side of the top cover, and a plane bearing is fixedly connected, the outside fixedly connected with of round bar is located the inboard first fixture block of plane bearing, the outside fixedly connected with of round bar is located the left and right sides the second fixture block of one side of the back of the body mutually of password driver plate, the draw-in groove has been seted up to the inside wall of password driver plate.

Preferably, the fixing base is bilateral symmetry and distributes, the bolt hole has been seted up at the top of fixing base.

Preferably, the slide bars are symmetrically distributed, the bottom of the frame block is provided with mounting holes located on the outer side of the slide bars, and the left side and the right side of the frame block are provided with sliding holes located on the outer side of the L-shaped block.

Preferably, the top of the positioning shell extends to the inner side of the frame block, the left side wall and the right side wall of the inner cavity of the shell are both provided with limiting grooves located on the outer side of the L-shaped block, and the two opposite sides of the positioning shell are both designed to be open.

Preferably, the L-shaped blocks are distributed in a bilateral symmetry mode, and the length of the guide hole is larger than the depth of the limiting groove.

Preferably, the length of the push plate is greater than the length of the guide hole, and the push plate is in contact with the top of the top cover.

Preferably, the inside of top cap is seted up and is located password driver plate outside locating hole, the round bar is bilateral symmetry and distributes.

Preferably, the buffer pad is a sponge sheet, and the shape and size of the first fixture block are the same as those of the second fixture block.

Preferably, the left side and the right side of the clamping groove are both in an opening design, and the cross sectional area of the clamping groove is larger than that of the second clamping block.

(III) advantageous effects

Compared with the prior art, the invention provides a lithium battery protection device, which has the following beneficial effects:

1. the lithium battery protection device, when the shell is impacted by the external vertical direction, the shell drives the limiting plate and the sliding rod to move, the lithium battery body drives the positioning shell to move under the action of the coherence, the positioning shell drives the sliding block to extrude the first compression spring, the first compression spring is deformed under the stress, the effect of buffering the impact of the external vertical direction is achieved, when the shell is impacted by the external horizontal direction, the lithium battery body extrudes the buffer cushion under the action of the coherence, the buffer cushion is deformed under the stress, the effect of buffering the impact of the external horizontal direction is achieved, in addition, the vacuum cavity plays the effect of cutting off heat conduction, the external heat is prevented from being quickly conducted to the inside of the shell through the shell and the temperature of the lithium battery body is increased, two air guide fans work simultaneously, the air guide fan on the left side accelerates the air to enter the inside of the shell, the air, the radiating speed of the surface of the lithium battery body is increased, and therefore the purposes of radiating and damping are achieved.

2. This lithium battery protection device, reach the assigned position through rotating the password driver plate, promote two push pedals again, make two push pedals be close to each other, the push pedal drives L-shaped piece extrusion second compression spring, second compression spring atress shrink, L-shaped piece drives the round bar and removes simultaneously, the round bar drives first fixture block and second fixture block and removes, make first fixture block and second fixture block pass through the draw-in groove on the password driver plate simultaneously, L-shaped piece breaks away from the spacing groove on the shell simultaneously, can the rebound top cap, the top cap drives the frame piece and breaks away from slide bar and shell in proper order, the rebound slider again, make the slider break away from the slide bar, can take out lithium cell body and look over, the realization reaches the assigned position through rotating the password driver plate and just can open the top cap, avoid other personnel to open the top cap, reduce and stolen risk, thereby.

Drawings

Fig. 1 is a schematic structural diagram of a lithium battery protection device according to the present invention;

fig. 2 is an enlarged view of a portion a in fig. 1 of a lithium battery protection device according to the present invention;

fig. 3 is a right sectional view of a second block of the lithium battery protection device according to the present invention.

In the figure: 1. a housing; 2. a vacuum chamber; 3. a support block; 4. a wind guide fan; 5. a fixed seat; 6. a limiting plate; 7. a slide bar; 8. a slider; 9. a frame block; 10. a first compression spring; 11. a top cover; 12. a positioning shell; 13. a cushion pad; 14. a lithium battery body; 15. a circular cavity; 16. a guide hole; 17. an L-shaped block; 18. pushing the plate; 19. a round bar; 20. a second compression spring; 21. a password dial; 22. a flat bearing; 23. a first clamping block; 24. a second fixture block; 25. a clamping groove.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-3, a lithium battery protection device comprises a housing 1, a vacuum chamber 2 is arranged inside the housing 1, a supporting block 3 is fixedly connected inside the vacuum chamber 2, two air guiding fans 4 extending into the housing 1 are fixedly connected to the bottom of the housing 1, fixing bases 5 are fixedly connected to the left and right sides of the housing 1, the fixing bases 5 are symmetrically arranged in the left and right direction, bolt holes are formed in the tops of the fixing bases 5, limiting plates 6 are fixedly connected to the left and right side walls of the inner cavity of the housing 1, slide bars 7 are fixedly connected to the tops of the two limiting plates 6, slide blocks 8 are movably connected to the outer sides of the two slide bars 7, a top cover 11 is movably connected to the top of the housing 1, frame blocks 9 extending into the housing 1 and extending to the outer sides of the two slide bars 7 are fixedly connected to the bottom of the frame blocks 9, the slide bars 7 are symmetrically arranged in the, the left side and the right side of the frame block 9 are both provided with sliding holes positioned at the outer side of an L-shaped block 17, the upper side and the lower side of the two sliding blocks 8 are both fixedly connected with first compression springs 10 positioned at the outer sides of the two sliding rods 7, one opposite side of the two sliding blocks 8 is both fixedly connected with positioning shells 12, the tops of the positioning shells 12 extend to the inner side of the frame block 9, the left side wall and the right side wall of the inner cavity of the shell 1 are both provided with limiting grooves positioned at the outer sides of the L-shaped block 17, one opposite side of the two positioning shells 12 is both in open design, the insides of the two positioning shells 12 are both fixedly connected with buffer pads 13, a lithium battery body 14 is movably connected between the two buffer pads 13, a round cavity 15 is arranged inside the top cover 11, the tops of the top cover 11 are provided with guide holes 16 which are two in number and are, l-shaped blocks 17 are distributed in bilateral symmetry, the length of the guide hole 16 is greater than the depth of the limiting groove, the tops of the two L-shaped blocks 17 are fixedly connected with push plates 18 positioned above the top cover 11, the length of the push plates 18 is greater than the length of the guide hole 16, the push plates 18 are in contact with the top of the top cover 11, the right side wall of the inner cavity of the left L-shaped block 17 and the left side wall of the inner cavity of the right L-shaped block 17 are fixedly connected with round rods 19 extending into the round cavity 15, positioning holes positioned outside the password dial 21 are formed in the top cover 11, password numbers can be sprayed on the outer side of the password dial 21 and correspond to designated positions, the opening and closing of the top cover 11 are controlled by rotating the password dial 21 to the designated positions, the sprayed password numbers belong to the prior art and are mostly used in the technical field of equipment such as a customs lock, the round rods 19 are distributed in bilateral symmetry, the outer side of the round rod 19 is movably connected with two password dial plates 21 which are extended to the upper side and the lower side of the top cover 11, a plane bearing 22 is fixedly connected between the two password dial plates 21 at the same side, the outer side of the round rod 19 is fixedly connected with a first clamping block 23 positioned at the inner side of the plane bearing 22, the outer side of the round rod 19 is fixedly connected with a second clamping block 24 positioned at the opposite side of the password dial plates 21 at the left side and the right side, the buffer cushion 13 is a sponge sheet, the shape and the size of the first clamping block 23 are the same as those of the second clamping block 24, the inner side wall of the password dial plate 21 is provided with a clamping groove 25, the left side and the right side of the clamping groove 25 are both open, the cross-sectional area of the clamping groove 25 is larger than that of the second clamping block 24, when the shell 1 is impacted by the external vertical direction, the shell 1 drives the limiting plate 6 and, the first compression spring 10 is stressed to deform and plays a role in buffering the impact in the external vertical direction, when the shell 1 is impacted in the external horizontal direction, the lithium battery body 14 extrudes the buffer pad 13 under the action of the coherence, the buffer pad 13 deforms under the action of the stress and plays a role in buffering the impact in the external horizontal direction, in addition, the vacuum cavity 2 plays a role in cutting off heat conduction, so as to prevent the external heat from being quickly conducted into the shell 1 through the shell 1 and enable the lithium battery body 14 to be heated up, meanwhile, the two air guide fans 4 work, the left air guide fan 4 accelerates the air to enter the shell 1, the right air guide fan 4 accelerates the air to be led out of the shell 1, thereby accelerating the air flow rate on the surface of the lithium battery body 14 and accelerating the heat dissipation speed on the surface of the lithium battery body 14, thereby achieving the purposes of heat dissipation and, promote two push pedals 18 again, make two push pedals 18 be close to each other, push pedal 18 drives L-shaped piece 17 and extrudes second compression spring 20, second compression spring 20 atress shrink, L-shaped piece 17 drives round bar 19 and removes simultaneously, round bar 19 drives first fixture block 23 and second fixture block 24 and removes, make first fixture block 23 and second fixture block 24 simultaneously through draw-in groove 25 on the password driver plate 21, L-shaped piece 17 breaks away from the spacing groove on the shell 1 simultaneously, can upwards remove top cap 11, top cap 11 drives frame piece 9 and breaks away from slide bar 7 and shell 1 in proper order, upwards remove slider 8 again, make slider 8 break away from slide bar 7, can take out lithium cell body 14 and look over, realize reaching the assigned position through rotating password driver plate 21 and can open top cap 11, avoid other personnel to open top cap 11, reduce stolen risk, thereby the purpose of encryption protection has been reached.

In conclusion, the lithium battery protection device, when the housing 1 is impacted by the external vertical direction, the housing 1 drives the limit plate 6 and the slide rod 7 to move, the lithium battery body 14 drives the positioning shell 12 to move under the action of the coherence, the positioning shell 12 drives the slide block 8 to extrude the first compression spring 10, the first compression spring 10 is stressed to deform, and the impact in the external vertical direction is buffered, when the housing 1 is impacted by the external horizontal direction, the lithium battery body 14 extrudes the buffer cushion 13 under the action of the coherence, the buffer cushion 13 is stressed to deform, and the impact in the external horizontal direction is buffered, in addition, the vacuum cavity 2 plays a role in blocking heat conduction, and prevents the external heat from being rapidly conducted to the inside of the housing 1 through the housing 1 and heating up the lithium battery body 14, and simultaneously makes the two air guide fans 4 work, the left air guide fan 4 accelerates the air to enter the inside of the housing, the right air guiding fan 4 accelerates air to be led out of the shell 1, so that the air flow rate on the surface of the lithium battery body 14 is accelerated, the heat dissipation speed on the surface of the lithium battery body 14 is accelerated, and the purpose of heat dissipation and shock absorption is achieved, the password driving plate 21 is rotated to reach a designated position, then the two push plates 18 are pushed to enable the two push plates 18 to approach each other, the push plates 18 drive the L-shaped blocks 17 to extrude the second compression springs 20, the second compression springs 20 are stressed to shrink, meanwhile, the L-shaped blocks 17 drive the round rods 19 to move, the round rods 19 drive the first clamping blocks 23 and the second clamping blocks 24 to move, the first clamping blocks 23 and the second clamping blocks 24 simultaneously pass through the clamping grooves 25 on the password driving plate 21, meanwhile, the L-shaped blocks 17 are separated from the limiting grooves on the shell 1, the top cover 11 can be moved upwards, the top cover 11 drives the frame blocks 9, can take out lithium cell body 14 and look over, the realization can reach assigned position through rotating password driver plate 21 and just can open top cap 11, avoid other personnel to open top cap 11, reduce stolen risk, thereby the purpose of encryption protection has been reached, prior art has been solved, the lithium cell is protected to the mode of adopting at the outside cladding casing of lithium cell usually, but the simple structure of shell, can not play heat dissipation and absorbing effect to the lithium cell, and there is stolen risk in current lithium cell, like lithium cell for the electric motor car, lead to the poor problem of protectiveness of casing.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

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. A lithium battery protection device comprising a casing (1), characterized in that: the air conditioner is characterized in that a vacuum cavity (2) is arranged inside the shell (1), a supporting block (3) is fixedly connected inside the vacuum cavity (2), the number of the fixedly connected bottoms of the shell (1) is two, the two fixedly connected bottom air guiding fans (4) extend to the inside of the shell (1), fixing seats (5) are fixedly connected to the left side and the right side of the shell (1), limiting plates (6) are fixedly connected to the left side and the right side of the inner cavity of the shell (1), sliding rods (7) are fixedly connected to the top of the limiting plates (6), sliding blocks (8) are movably connected to the outer sides of the sliding rods (7), a top cover (11) is movably connected to the top of the shell (1), the bottom of the top cover (11) is fixedly connected to the inside of the shell (1) and extends to two frame blocks (9) outside the sliding rods (7), and the two fixedly connected upper and lower sides of the sliding blocks (8) are fixedly The device comprises compression springs (10), one opposite side of each of the two sliding blocks (8) is fixedly connected with a positioning shell (12), the insides of the two positioning shells (12) are fixedly connected with cushion pads (13), a lithium battery body (14) is movably connected between the two cushion pads (13), a round cavity (15) is arranged inside the top cover (11), the top of the top cover (11) is provided with two guide holes (16) which are communicated with the round cavity (15), the insides of the two guide holes (16) are movably connected with L-shaped blocks (17) of which one ends penetrate through a frame block (9) and extend into the shell (1), the tops of the two L-shaped blocks (17) are fixedly connected with push plates (18) positioned above the top cover (11), the right side wall of the inner cavity of the L-shaped block (17) on the left side and the left side wall of the inner cavity of the L-shaped block (17) are fixedly connected with round rods (19) extending into the round, two fixedly connected with is located inside second compression spring (20) of round chamber (15) between L shape piece (17), the outside swing joint quantity of round bar (19) is two and extends to password driver plate (21) of both sides about top cap (11), and the homonymy is two fixedly connected with flat bearing (22) between password driver plate (21), the outside fixedly connected with of round bar (19) is located inboard first fixture block (23) of flat bearing (22), the outside fixedly connected with of round bar (19) is located the left and right sides second fixture block (24) of one side of the back of the body of password driver plate (21), draw-in groove (25) have been seted up to the inside wall of password driver plate (21).

2. A lithium battery protection device according to claim 1, characterized in that: the fixing seat (5) is distributed in a bilateral symmetry mode, and bolt holes are formed in the top of the fixing seat (5).

3. A lithium battery protection device according to claim 1, characterized in that: the slide bar (7) are distributed in a bilateral symmetry mode, the bottom of the frame block (9) is provided with mounting holes located on the outer side of the slide bar (7), and the left side and the right side of the frame block (9) are provided with slide holes located on the outer side of the L-shaped block (17).

4. A lithium battery protection device according to claim 1, characterized in that: the top of location shell (12) extends to the inboard of frame piece (9), the spacing groove that is located L-shaped piece (17) outside is all seted up to the inner chamber left and right sides wall of shell (1), two the relative one side of location shell (12) is the opening design.

5. A lithium battery protection device according to claim 4, characterized in that: the L-shaped blocks (17) are distributed in a bilateral symmetry mode, and the length of the guide hole (16) is larger than the depth of the limiting groove.

6. A lithium battery protection device according to claim 1, characterized in that: the length of the push plate (18) is greater than that of the guide hole (16), and the push plate (18) is in contact with the top of the top cover (11).

7. A lithium battery protection device according to claim 1, characterized in that: the inside of top cap (11) is seted up and is located password driver plate (21) outside locating hole, round bar (19) are bilateral symmetry and distribute.

8. A lithium battery protection device according to claim 1, characterized in that: the buffer pad (13) is a sponge sheet, and the shape and the size of the first fixture block (23) are the same as those of the second fixture block (24).

9. A lithium battery protection device according to claim 1, characterized in that: the left side and the right side of the clamping groove (25) are both in an opening design, and the cross sectional area of the clamping groove (25) is larger than that of the second clamping block (24).