Explosion-proof protection structure of lithium battery

Abstract

The utility model discloses a lithium battery explosion-proof protection structure, which comprises an explosion-proof protection shell and an explosion-proof plate, the upper surface of the explosion-proof protection shell is contacted with the lower surface of the explosion-proof plate, the two sides of the explosion-proof protection shell are fixedly connected with side damping plates, and the lower surface of the explosion-proof protection shell is fixedly connected with a lower damping plate. Through the arrangement of the explosion-proof protective shell, the explosion-proof plate, the side damping plate, the lower damping plate, the upper damping plate and other structures, under the action of the explosion-proof protective shell and the explosion-proof plate, the lithium battery can be protected, and the lithium battery can be prevented from being collided and impacted by the outside, so that the situation that the lithium battery is deformed or damaged is avoided, and the service life of the lithium battery is prolonged. And meanwhile, under the action of the side shock absorption plate, the lower shock absorption plate and the upper shock absorption plate, impact force from the outside can be absorbed, transferring of shock force is reduced, and the safety of the lithium battery is further improved.

Description

Technical Field

[0001] The utility model relates to the technical field of lithium battery explosion-proof, in particular to a lithium battery explosion-proof protection structure. Background Art

[0002] Lithium metal batteries generally use manganese dioxide as the positive electrode material, metallic lithium or its alloy metal as the negative electrode material, and use a non-aqueous electrolyte solution.

[0003] In the prior art, some lithium batteries on the market usually do not have a good protection structure. If the lithium battery is accidentally impacted by external objects during use or transportation, it is easy to cause the lithium battery to deform or break, which may cause internal short circuit or electrolyte leakage of the battery, and may cause an explosion. Therefore, a lithium battery explosion-proof protection structure is needed. Utility Model Content

[0004] The purpose of the utility model is to solve at least one of the technical problems existing in the prior art, and to provide a lithium battery explosion-proof protection structure. Through the arrangement of structures such as explosion-proof protective shell, explosion-proof plate, side shock-absorbing plate, lower shock-absorbing plate and upper shock-absorbing plate, the lithium battery can be protected under the action of the explosion-proof protective shell and the explosion-proof plate, and the lithium battery can be prevented from being subjected to external collision and impact, thereby preventing the lithium battery from being deformed or damaged, and further preventing the lithium battery from exploding, thereby improving the safety of the lithium battery. At the same time, under the action of the side shock-absorbing plate, the lower shock-absorbing plate and the upper shock-absorbing plate, the impact force from the outside can be absorbed, the transfer of the vibration force can be reduced, and the safety of the lithium battery can be further improved. Through the arrangement of the filter plate, floating dust in the outside air can be prevented from entering the explosion-proof protective shell through the ventilation slot, thereby preventing dust from adhering to the surface of the lithium battery, thereby avoiding affecting the normal use of the lithium battery, and improving the stability of the lithium battery during use.

[0005] The utility model also provides the above-mentioned lithium battery explosion-proof protection structure, including an explosion-proof protection shell and an explosion-proof plate, the upper surface of the explosion-proof protection shell is in contact with the lower surface of the explosion-proof plate, both sides of the explosion-proof protection shell are fixedly connected with side shock-absorbing plates, the lower surface of the explosion-proof protection shell is fixedly connected with a lower shock-absorbing plate, the upper surface of the explosion-proof plate is fixedly connected with an upper shock-absorbing plate, the bottom inner wall of the explosion-proof protection shell is fixedly connected with a first positioning block, the inner surface of the first positioning block is movably connected with a lithium battery, the upper surface of the first positioning block is fixedly connected with a plurality of first limiting blocks, the bottom inner wall of the explosion-proof protection shell is fixedly connected with two second positioning blocks, the inner surfaces of the two second positioning blocks are movably connected with connecting rings, the inner surfaces of the two connecting rings are fixedly connected with filter plates, and the explosion-proof protection shell is provided with a plurality of ventilation slots.

[0006] A fixed structure, the fixed structure includes a connecting block, a limiting rod, a T-block, a sliding block, an L-block, a second limiting block and an insert block, the side surface of the connecting block is fixedly connected to the explosion-proof protective shell, the side surface of the limiting rod is fixedly connected to the connecting block, the inner surface of the T-block is slidably connected to the limiting rod, the side surface of the sliding block is fixedly connected to the T-block, the side surface of the L-block is fixedly connected to the sliding block, the rear surface of the second limiting block is fixedly connected to the L-block, the outer surface of the second limiting block is movably connected to the insert block, and the side surface of the insert block is fixedly connected to the explosion-proof plate.

[0007] According to the lithium battery explosion-proof protection structure, a T-shaped slot is provided on the connecting block, and the outer surface of the T-shaped block is slidably connected to the T-shaped slot. Through the action of the T-shaped slot and the T-shaped block, the slider, the L-shaped block and the second limit block can only move in the horizontal direction.

[0008] According to the lithium battery explosion-proof protection structure, a slot is provided on the insert block, and the outer surface of the second limiting block is movably connected to the slot.

[0009] According to the lithium battery explosion-proof protection structure, a spring is slidably sleeved on the outer surface of the limit rod, one end of the spring is fixedly connected to the rear surface of the T-block, and the end of the spring away from the T-block is fixedly connected to the side inner wall of the T-slot, and under the action of the spring, the second limit block can be quickly inserted into the slot.

[0010] According to the lithium battery explosion-proof protection structure, a positioning groove is provided on the connection block, and the outer surface of the insertion block is movably connected to the positioning groove, so that the slot and the second limiting block can quickly correspond to each other.

[0011] According to the lithium battery explosion-proof protection structure, the side surface of the limiting rod is fixedly connected to the T-slot, and the outer surface of the second limiting block is slidably connected to the connecting block.

[0012] According to the lithium battery explosion-proof protection structure, the outer surface of the lithium battery is in contact with the first limit block, and the number of the fixed structures is two and distributed on the left and right. Under the action of the first limit block, the lithium battery is more stable in the explosion-proof protective shell.

[0013] According to the explosion-proof protection structure for a lithium battery, the outer surface of the connecting ring is in contact with the explosion-proof protection shell and the explosion-proof plate respectively, and the outer surface of the lithium battery is in contact with the explosion-proof plate.

[0014] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The utility model is further described below in conjunction with the accompanying drawings and embodiments;

[0016] Figure 1 This is an overall structural diagram of a lithium battery explosion-proof protection structure of the utility model;

[0017] Figure 2 This is a schematic structural diagram of the lithium battery portion of a lithium battery explosion-proof protection structure of the utility model;

[0018] Figure 3 This is a structural schematic diagram of a first positioning block portion of a lithium battery explosion-proof protection structure of the utility model;

[0019] Figure 4 This is a schematic structural diagram of a cross-section of an explosion-proof protective shell of a lithium battery explosion-proof protective structure of the utility model;

[0020] Figure 5 The utility model is a schematic structural diagram of a cross-section of a connecting block of a lithium battery explosion-proof protection structure.

[0021] Legend:

[0022] 1. Explosion-proof protective shell; 2. Explosion-proof plate; 3. Side shock-absorbing plate; 4. Lower shock-absorbing plate; 5. Upper shock-absorbing plate; 6. First positioning block; 7. Lithium battery; 8. First limiting block; 9. Second positioning block; 10. Connecting ring; 11. Filter plate; 12. Connecting block; 13. Limiting rod; 14. T-block; 15. Slider; 16. L-block; 17. Second limiting block; 18. Insert block; 19. T-slot; 20. Slot; 21. Spring; 22. Positioning slot; 23. Ventilation slot; 24. Fixed structure. DETAILED DESCRIPTION

[0023] This section will describe in detail the specific embodiments of the utility model. The preferred embodiments of the utility model are shown in the accompanying drawings. The purpose of the accompanying drawings is to supplement the description of the text part of the specification with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the utility model, but it cannot be understood as a limitation on the protection scope of the utility model.

[0024] Reference Figure 1-5The utility model embodiment provides a lithium battery explosion-proof protection structure, which includes an explosion-proof protective shell 1 and an explosion-proof plate 2. The upper surface of the explosion-proof protective shell 1 contacts the lower surface of the explosion-proof plate 2. Both sides of the explosion-proof protective shell 1 are fixedly connected with side shock-absorbing plates 3. The lower surface of the explosion-proof protective shell 1 is fixedly connected with a lower shock-absorbing plate 4. The upper surface of the explosion-proof plate 2 is fixedly connected with an upper shock-absorbing plate 5. The bottom inner wall of the explosion-proof protective shell 1 is fixedly connected with a first positioning block 6. The inner surface of the first positioning block 6 is movably connected with a lithium battery 7. The first positioning block 6 is fixedly connected with a first positioning block 6. A plurality of first limit blocks 8 are fixedly connected to the upper surface, two second positioning blocks 9 are fixedly connected to the bottom inner wall of the explosion-proof protective shell 1, the inner surfaces of the two second positioning blocks 9 are movably connected to connecting rings 10, the inner surfaces of the two connecting rings 10 are fixedly connected to filter plates 11, a plurality of ventilation grooves 23 are provided on the explosion-proof protective shell 1, the outer surface of the lithium battery 7 is in contact with the first limit blocks 8, the outer surfaces of the connecting rings 10 are in contact with the explosion-proof protective shell 1 and the explosion-proof plate 2 respectively, and the outer surface of the lithium battery 7 is in contact with the explosion-proof plate 2.

[0025] The fixed structure 24 includes a connecting block 12, a limiting rod 13, a T-shaped block 14, a slider 15, an L-shaped block 16, a second limiting block 17 and an insert block 18. The side surface of the connecting block 12 is fixedly connected to the explosion-proof protective shell 1, the side surface of the limiting rod 13 is fixedly connected to the connecting block 12, the inner surface of the T-shaped block 14 is slidably connected to the limiting rod 13, the side surface of the slider 15 is fixedly connected to the T-shaped block 14, the side surface of the L-shaped block 16 is fixedly connected to the slider 15, the rear surface of the second limiting block 17 is fixedly connected to the L-shaped block 16, the outer surface of the second limiting block 17 is movably connected to the insert block 18, the side surface of the insert block 18 is fixedly connected to the explosion-proof plate 2, and the connecting block 12 is provided with a There is a T-slot 19, the outer surface of the T-block 14 is slidably connected to the T-slot 19, the side surface of the limit rod 13 is fixedly connected to the T-slot 19, a slot 20 is provided on the plug block 18, the outer surface of the second limit block 17 is movably connected to the slot 20, a spring 21 is slidably sleeved on the outer surface of the limit rod 13, one end of the spring 21 is fixedly connected to the rear surface of the T-block 14, and the end of the spring 21 away from the T-block 14 is fixedly connected to the side inner wall of the T-slot 19, a positioning slot 22 is provided on the connecting block 12, the outer surface of the plug block 18 is movably connected to the positioning slot 22, the outer surface of the second limit block 17 is slidably connected to the connecting block 12, and the number of the fixed structures 24 is two and they are distributed on the left and right.

[0026] Working principle: Under the action of the explosion-proof protective shell 1 and the explosion-proof plate 2, the lithium battery 7 on the first positioning block 6 can be protected, thereby preventing external objects from directly contacting the lithium battery 7. At the same time, under the action of the side shock-absorbing plate 3, the lower shock-absorbing plate 4 and the upper shock-absorbing plate 5, the impact from the outside can be absorbed, the transfer of vibration force can be reduced, and the safety of the lithium battery 7 in the explosion-proof protective shell 1 can be improved. At the same time, under the action of the ventilation slots 23, the heat generated by the lithium battery 7 during use can be dissipated to the outside through the ventilation slots 23, and under the action of the filter plate 11, the outside air can contact the filter plate 11 before entering the explosion-proof protective shell 1, so that the dust in the air can be filtered to prevent the outside dust from passing through the ventilation slots. The air slot 23 enters the explosion-proof protective shell 1, thereby preventing dust from adhering to the outer surface of the lithium battery 7. When the lithium battery 7 needs to be maintained or the filter plate 11 needs to be cleaned, the slider 15 is pushed so that the movable slider 15 can drive the L-shaped block 16 and the second limiting block 17 to move. When the movable second limiting block 17 is disengaged from the slot 20, the restriction on the first limiting block 8 can be released, and the connection between the explosion-proof protective shell 1 and the explosion-proof plate 2 can be released, so that the explosion-proof plate 2 can be removed from the explosion-proof protective shell 1, and then the lithium battery 7 can be removed from the first positioning block 6 for maintenance or the connecting ring 10 and the filter plate 11 can be removed from the second positioning block 9 for cleaning. When the maintenance of the lithium battery 7 is completed or the filter plate 11 is cleaned, After the cleaning is completed, the lithium battery 7 is inserted into the first positioning block 6, and the lithium battery 7 is in contact with the first limiting block 8 to improve the stability of the lithium battery 7 on the first positioning block 6, and then the connecting ring 10 is inserted into the second positioning block 9 and in contact with the inner wall of the explosion-proof protective shell 1, and then the slider 15 is pushed, so that the moving slider 15 drives the L-shaped block 16, the second limiting block 17 and the T-shaped block 14 to move, so that the moving second limiting block 17 does not affect the insertion of the plug-in block 18, and at the same time, the moving T-shaped block 14 can squeeze the spring 21 on the T-shaped slot 19, so that the spring 21 is in a taut state, and under the action of the limiting rod 13 and the T-shaped slot 19, the T-shaped block 14, the slider 15, the L-shaped block 16 and the second limiting block 17 are in contact with the inner wall of the explosion-proof protective shell 1 The limit block 17 can only move in the horizontal direction and will not detach from the connecting block 12. Then, the plug block 18 on the explosion-proof plate 2 is inserted into the positioning groove 22. When the plug block 18 is fully inserted into the positioning groove 22, the slot 20 can correspond to the second limit block 17. Then, the pushed slider 15 is released so that the spring 21 is no longer subjected to the thrust and rebounds, so that the rebounding spring 21 drives the T-block 14, the slider 15, the L-block 16 and the second limit block 17 to reset, so that the second limit block 17 can be quickly inserted into the slot 20, so as to fix the plug block 18 and complete the connection between the explosion-proof protective shell 1 and the explosion-proof plate 2, thereby protecting the lithium battery 7 and fixing the filter plate 11.

[0027] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments. Various changes can be made within the knowledge scope of ordinary technicians in the technical field without departing from the purpose of the present invention.

Claims

1. A lithium battery explosion-proof protection structure, characterized in that: include: An explosion-proof protective shell (1) and an explosion-proof plate (2), wherein the upper surface of the explosion-proof protective shell (1) contacts the lower surface of the explosion-proof plate (2), side shock absorbing plates (3) are fixedly connected to both sides of the explosion-proof protective shell (1), a lower shock absorbing plate (4) is fixedly connected to the lower surface of the explosion-proof protective shell (1), an upper shock absorbing plate (5) is fixedly connected to the upper surface of the explosion-proof plate (2), and a first positioning block (6) is fixedly connected to the bottom inner wall of the explosion-proof protective shell (1), wherein the first positioning block ( 6) is movably connected to a lithium battery (7), the upper surface of the first positioning block (6) is fixedly connected to a plurality of first limit blocks (8), the bottom inner wall of the explosion-proof protective shell (1) is fixedly connected to two second positioning blocks (9), the inner surfaces of the two second positioning blocks (9) are movably connected to a connecting ring (10), the inner surfaces of the two connecting rings (10) are fixedly connected to a filter plate (11), and the explosion-proof protective shell (1) is provided with a plurality of ventilation slots (23); A fixed structure (24), the fixed structure (24) comprising a connecting block (12), a limiting rod (13), a T-shaped block (14), a sliding block (15), an L-shaped block (16), a second limiting block (17) and an inserting block (18), the side surface of the connecting block (12) being fixedly connected to the explosion-proof protective shell (1), the side surface of the limiting rod (13) being fixedly connected to the connecting block (12), the inner surface of the T-shaped block (14) being slidably connected to the limiting rod (13), the side surface of the sliding block (15) being fixedly connected to the T-shaped block (14), the side surface of the L-shaped block (16) being fixedly connected to the sliding block (15), the rear surface of the second limiting block (17) being fixedly connected to the L-shaped block (16), the outer surface of the second limiting block (17) being movably connected to the inserting block (18), and the side surface of the inserting block (18) being fixedly connected to the explosion-proof plate (2).

2. A lithium battery explosion-proof protection structure according to claim 1, characterized in that: The connection block (12) is provided with a T-shaped groove (19), and the outer surface of the T-shaped block (14) is slidably connected to the T-shaped groove (19).

3. The lithium battery explosion-proof protection structure according to claim 1, characterized in that: The insert block (18) is provided with a slot (20), and the outer surface of the second limiting block (17) is movably connected to the slot (20).

4. The lithium battery explosion-proof protection structure according to claim 1, characterized in that: A spring (21) is slidably sleeved on the outer surface of the limiting rod (13), one end of the spring (21) is fixedly connected to the rear surface of the T-block (14), and one end of the spring (21) away from the T-block (14) is fixedly connected to the inner side wall of the T-slot (19).

5. The lithium battery explosion-proof protection structure according to claim 1, characterized in that: The connection block (12) is provided with a positioning groove (22), and the outer surface of the insert block (18) is movably connected to the positioning groove (22).

6. The lithium battery explosion-proof protection structure according to claim 1, characterized in that: The side surface of the limiting rod (13) is fixedly connected to the T-shaped slot (19), and the outer surface of the second limiting block (17) is slidably connected to the connecting block (12).

7. The lithium battery explosion-proof protection structure according to claim 1, characterized in that: The outer surface of the lithium battery (7) is in contact with the first limit block (8), and the number of the fixing structures (24) is two and they are distributed on the left and right.

8. The lithium battery explosion-proof protection structure according to claim 1, characterized in that: The outer surface of the connecting ring (10) is in contact with the explosion-proof protective shell (1) and the explosion-proof plate (2) respectively, and the outer surface of the lithium battery (7) is in contact with the explosion-proof plate (2).

Images