CN221632740U - Shock-absorbing lithium battery module - Google Patents
Shock-absorbing lithium battery module Download PDFInfo
- Publication number
- CN221632740U CN221632740U CN202420061388.5U CN202420061388U CN221632740U CN 221632740 U CN221632740 U CN 221632740U CN 202420061388 U CN202420061388 U CN 202420061388U CN 221632740 U CN221632740 U CN 221632740U
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- China
- Prior art keywords
- lithium battery
- module
- wall
- battery module
- top surface
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 229910052744 lithium Inorganic materials 0.000 title claims abstract description 102
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 title claims abstract description 101
- 238000007789 sealing Methods 0.000 claims abstract description 38
- 238000005192 partition Methods 0.000 claims abstract description 10
- 230000017525 heat dissipation Effects 0.000 claims abstract description 8
- 238000013016 damping Methods 0.000 claims description 16
- 230000035939 shock Effects 0.000 claims description 14
- 210000005056 cell body Anatomy 0.000 claims description 10
- 239000006096 absorbing agent Substances 0.000 claims description 6
- 238000001816 cooling Methods 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 12
- 230000002035 prolonged effect Effects 0.000 abstract description 2
- 210000004027 cell Anatomy 0.000 description 6
- 238000009434 installation Methods 0.000 description 5
- 238000005381 potential energy Methods 0.000 description 2
- 229910000733 Li alloy Inorganic materials 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 239000001989 lithium alloy Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000007773 negative electrode material Substances 0.000 description 1
- 239000011255 nonaqueous electrolyte Substances 0.000 description 1
- 239000007774 positive electrode material Substances 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
Landscapes
- Battery Mounting, Suspending (AREA)
Abstract
The utility model belongs to the technical field of lithium batteries, in particular to a cushioning type lithium battery module, which comprises a module shell, wherein a sealing cover is in friction contact with the top surface of the module shell, four corners of the top surface of the sealing cover are respectively inserted with a connecting hand wheel, the lower ends of the connecting hand wheels are respectively connected with the upper end of the module shell through threaded holes, the top surface of the sealing cover is in a symmetrical structure and fixedly provided with two handles, the bottom surface of the sealing cover is in a uniform arrangement structure and is provided with a plurality of rubber pads, a plurality of partition plates are fixedly arranged in the module shell in a uniform arrangement structure, a lithium battery body is placed between two adjacent partition plates, the bottom surfaces of the rubber pads are in friction contact with the top surface of the lithium battery body, and the outer wall of the module shell is provided with a heat dissipation mechanism. The lithium battery module cushioning effect is improved, the occurrence of damage to a lithium battery body caused by shaking and shaking of the lithium battery module is reduced, the integrity of the lithium battery module is protected, the heat dissipation effect of the lithium battery module is improved, and the service life of the lithium battery module is prolonged.
Description
Technical Field
The utility model relates to the technical field of lithium batteries, in particular to a shock absorption type lithium battery module.
Background
Lithium batteries are a type of batteries using a nonaqueous electrolyte solution with lithium metal or lithium alloy as a positive/negative electrode material; the lithium battery module refers to a unit composed of a plurality of battery cells, and is generally composed of tens to hundreds of battery cells connected;
Through searching, the Chinese patent with the publication number of CN215377568U is named as a lithium battery module with a self-protection function, when the lithium battery module vibrates, the two buffer rods can slide in the buffer groove, and the buffer rods press the buffer springs to deform the buffer springs, so that the buffer springs deform and can absorb energy, the vibration amplitude of the lithium battery module main body can be reduced, the problem that the lithium battery module is easy to damage when being vibrated is avoided, and the self-protection performance of the lithium battery module is effectively improved;
but find when using, after the buffer spring warp, when the elastic potential energy that produces is kick-backed, not be equipped with damping system, easily lead to the lithium cell module to take place to rock and shake, the cushioning effect to the lithium cell module is not good enough, causes bigger shake to cause the damage of lithium cell module even, is unfavorable for the use of lithium cell module.
Disclosure of utility model
Aiming at the defects of the prior art, the utility model provides a cushioning type lithium battery module, which solves the technical problems that after a buffer spring is deformed, when generated elastic potential energy rebounds, a damping system is not arranged, so that the lithium battery module is easy to shake and shake, the cushioning effect on the lithium battery module is poor, even larger shake is caused to damage the lithium battery module, and the use of the lithium battery module is not facilitated.
In order to solve the technical problems, the utility model provides the following technical scheme: the utility model provides a cushioning type lithium battery module, includes the module casing, module casing top surface friction contact has sealed lid, sealed lid top surface four corners department all has pegged graft and has been connected the hand wheel, it all passes through screw hole and module casing upper end threaded connection to connect the hand wheel lower extreme, symmetrical structure has set firmly two handles to seal the lid top, sealed lid bottom is evenly arranged structure and installs a plurality of rubber pads, the inside even arrangement that is of module casing has set firmly a plurality of baffles, adjacent two place lithium battery body between the baffle, rubber pad bottom surface and lithium battery body top surface friction contact, module casing outer wall is equipped with cooling body.
Preferably, the clamp splice is all equipped with to the baffle both sides, the clamp splice lateral wall is evenly arranged the structure and has set firmly a plurality of first springs, the one end and the baffle outer wall connection of first spring are fixed, the clamp splice upper end is the slope form, clamp splice outer wall and lithium cell body outer wall friction contact.
Through above-mentioned technical scheme, lithium cell body outer wall is along clamp splice downwardly sliding, and first spring is compressed, has improved lithium cell body's stability in use and installation convenience.
Preferably, the module shell inner wall is the front and back symmetrical structure and is equipped with a plurality of locating pieces, the locating piece back wall is evenly arranged structure and has set firmly a plurality of second springs, the second spring outer wall is all fixed with the module shell inner wall connection, the locating piece upper end is the slope structure, locating piece inner wall and lithium cell body outer wall friction contact.
Through above-mentioned technical scheme, wall all with locating piece sliding connection around the lithium cell body, the second spring is compressed, has improved lithium cell body's stability in use and installation convenience.
Preferably, a plurality of damping spring vibration dampers are installed on the inner bottom surface of the module shell in a uniform arrangement structure, and the top surfaces of the damping spring vibration dampers are in friction contact with the bottom surface of the lithium battery body.
Through above-mentioned technical scheme, through the use of damping spring shock absorber and rubber pad, improved the cushioning effect, reduced the damage influence to the lithium cell body.
Preferably, the heat dissipation mechanism comprises an air inlet pipe, the rear wall of the air inlet pipe is fixedly connected with the front wall of the module shell, the front wall of the module shell is provided with a blower through a mounting seat, the air outlet end of the blower is communicated with the air inlet pipe, and the air inlet end of the blower is provided with a filter screen.
Preferably, the upper end of the front wall of the module shell is provided with a plurality of air inlet holes in a uniform arrangement structure, the lower end of the rear wall of the module shell is provided with a plurality of air outlet holes in a uniform arrangement structure, and the air inlet pipe is communicated with the air inlet holes.
Through above-mentioned technical scheme, the air-blower is carried to the air-supply line inside after filtering through the filter screen with outside air, gets into inside the module casing through the inlet opening, extrudees the inside air of module casing and discharges to the box of airing exhaust inside from the outlet opening, makes the circulation of air cool down the lithium cell body.
Preferably, the back wall of the module shell is provided with an exhaust box, the exhaust box is communicated with the air outlet, the lower end of the exhaust box is rotationally connected with a sealing baffle, and the sealing baffle is vertical to the lower end of the exhaust box when being closed.
Preferably, the top surface of the sealing baffle is connected with a tension spring, the other end of the tension spring is fixedly connected with the inner wall of the exhaust box, and the front end of the tension spring is in friction contact with the rear wall of the module shell.
Through above-mentioned technical scheme, when the internal pressure of box of airing exhaust is greater than the outside, promotes sealing baffle along the rotatory discharge of box of airing exhaust to outside, and the extension spring is stretched this moment, carries unnecessary hot air to the box outside of airing exhaust, after the box internal pressure of airing exhaust reduces, upwards rotates sealing baffle through the restoring force of extension spring, makes sealing baffle front wall and module casing outer wall friction contact seal.
The utility model has the beneficial effects that:
1. The sealing cover is separated from the module shell through the rotary connecting hand wheel, then the sealing cover is taken down through the handle, the lithium battery body which needs to be installed and used is placed between two adjacent clapboards, at the moment, the outer wall of the lithium battery body slides downwards along the clamping blocks, the first springs are compressed, the clamping blocks extrude and fix the lithium battery body, meanwhile, the front wall and the rear wall of the lithium battery body are in sliding connection with the positioning blocks, the second springs are compressed, the bottom surface of the lithium battery body is in friction contact with the upper end of the damping spring damper, the sealing cover is installed through the connecting hand wheel, the rubber pad is driven to extrude and fix the lithium battery body, the clamping and fixing effect of the lithium battery body is improved through the clamping blocks and the positioning blocks, the shaking amplitude around is reduced, jolt and the like occur when the lithium battery body is installed at using positions of a vehicle and the like, and the damping spring damper and the rubber pad are used, so that the damping effect is improved. The lithium battery module cushioning effect is improved, the occurrence of damage to a lithium battery body caused by shaking and shaking of the lithium battery module is reduced, the integrity of the lithium battery module is protected, the heat dissipation effect of the lithium battery module is improved, and the service life of the lithium battery module is prolonged.
2. The external air is filtered by the filter screen and then is conveyed into the air inlet pipe through the air blower, enters the inside of the module shell through the air inlet hole, extrudes the air in the module shell and is discharged into the exhaust box from the air outlet hole, so that the air circulation cools the lithium battery body, when the internal pressure of the exhaust box is greater than the external, the sealing baffle is pushed to be rotationally discharged to the outside along the exhaust box, at the moment, the tension spring is stretched, the redundant hot air is conveyed to the outside of the exhaust box, after the internal pressure of the exhaust box is reduced, the sealing baffle is rotated upwards by the restoring force of the tension spring, so that the front wall of the sealing baffle is sealed in friction contact with the outer wall of the module shell, the external air is reduced, the internal part of the exhaust box is filled with the external air, the flowing air is convenient to cool the lithium battery body, and the high-temperature damage of the lithium battery body is reduced.
Drawings
FIG. 1 is a schematic diagram of the overall structure of the present utility model;
FIG. 2 is a schematic view of the seal cap structure assembly of the present utility model;
FIG. 3 is a cross-sectional view of a module housing structure of the present utility model;
FIG. 4 is a left side view of the module housing structure of the present utility model;
FIG. 5 is a cross-sectional view of a clamp block structure of the present utility model;
FIG. 6 is a cross-sectional view of the structure of the exhaust box of the present utility model;
Fig. 7 is a rear cross-sectional view of the air inlet duct structure of the present utility model.
In the figure: 1. a module housing; 2. sealing cover; 3. a connecting hand wheel; 4. a handle; 5. a rubber pad; 6. a partition plate; 601. clamping blocks; 602. a first spring; 7. a lithium battery body; 8. a heat dissipation mechanism; 801. an air inlet pipe; 802. a blower; 803. an air inlet hole; 804. an air outlet hole; 805. an exhaust box; 806. a sealing baffle; 807. a tension spring; 9. a positioning block; 901. a second spring; 10. damping spring shock absorber.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments.
Example 1
As shown in fig. 1-3, a cushioning type lithium battery module comprises a module shell 1, wherein a sealing cover 2 is in friction contact with the top surface of the module shell 1, connecting hand wheels 3 are inserted into four corners of the top surface of the sealing cover 2, the lower ends of the connecting hand wheels 3 are in threaded connection with the upper end of the module shell 1 through threaded holes, two handles 4 are fixedly arranged on the top surface of the sealing cover 2 in a symmetrical structure, a plurality of rubber pads 5 are arranged on the bottom surface of the sealing cover 2 in a uniform arrangement structure, a plurality of partition plates 6 are fixedly arranged in the module shell 1, a lithium battery body 7 is placed between two adjacent partition plates 6, the bottom surfaces of the rubber pads 5 are in friction contact with the top surface of the lithium battery body 7, and a heat dissipation mechanism 8 is arranged on the outer wall of the module shell 1.
As shown in fig. 1-5, two sides of the partition board 6 are respectively provided with a clamping block 601, the side walls of the clamping blocks 601 are uniformly arranged and fixedly provided with a plurality of first springs 602, one end of each first spring 602 is fixedly connected with the outer wall of the partition board 6, the upper end of each clamping block 601 is inclined, and the outer wall of each clamping block 601 is in friction contact with the outer wall of the lithium battery body 7; the outer wall of the lithium battery body 7 slides downwards along the clamping block 601, and the first spring 602 is compressed, so that the use stability and the installation convenience of the lithium battery body 7 are improved.
As shown in fig. 1-4, the inner wall of the module housing 1 is provided with a plurality of positioning blocks 9 in a front-back symmetrical structure, the rear wall of the positioning blocks 9 is fixedly provided with a plurality of second springs 901 in a uniform arrangement structure, the outer walls of the second springs 901 are connected and fixed with the inner wall of the module housing 1, the upper ends of the positioning blocks 9 are in an inclined structure, and the inner walls of the positioning blocks 9 are in friction contact with the outer wall of the lithium battery body 7; the front wall and the rear wall of the lithium battery body 7 are both in sliding connection with the positioning block 9, and the second spring 901 is compressed, so that the use stability and the installation convenience of the lithium battery body 7 are improved.
As shown in fig. 1 to 4, a plurality of damping spring dampers 10 are installed on the inner bottom surface of the module housing 1 in a uniform arrangement structure, and the top surfaces of the damping spring dampers 10 are in frictional contact with the bottom surface of the lithium battery body 7; through the use of damping spring shock absorber 10 and rubber pad 5, improved the bradyseism effect, reduced the damage influence to lithium cell body 7.
The working principle of the utility model is as follows: firstly, a sealing cover 2 is separated from a module shell 1 through a rotary connecting hand wheel 3, then after the sealing cover 2 is taken down through a handle 4, a lithium battery body 7 to be installed and used is placed between two adjacent partition boards 6, at the moment, the outer wall of the lithium battery body 7 slides downwards along a clamping block 601, a first spring 602 is compressed, the clamping block 601 extrudes and fixes the lithium battery body 7, meanwhile, the front wall and the rear wall of the lithium battery body 7 are both in sliding connection with a positioning block 9, a second spring 901 is compressed, the bottom surface of the lithium battery body 7 is in friction contact with the upper end of a damping spring damper 10, the sealing cover 2 is installed through the connecting hand wheel 3, and a rubber pad 5 is driven to extrude and fix the lithium battery body 7;
The handheld handle 4 moves the module shell 1, conveniently moves the lithium battery body 7 to a proper installation and use position, conveniently installs and changes the lithium battery body 7 through the handle 4 and the sealing cover 2, improves the clamping and fixing effect of the lithium battery body 7 through the clamping blocks 601 and the positioning blocks 9, simultaneously reduces the front-back and left-right shaking amplitude, and when installed at the use positions of a vehicle and the like, bumps and the like through the damping spring shock absorber 10 and the rubber pad 5, improves the cushioning effect, and reduces the damage influence on the lithium battery body 7.
Example two
As shown in fig. 1, fig. 2, fig. 4, fig. 6 and fig. 7, on the basis of the first embodiment, the heat dissipation mechanism 8 includes an air inlet pipe 801, a rear wall of the air inlet pipe 801 is fixedly connected with a front wall of the module housing 1, a blower 802 is mounted on the front wall of the module housing 1 through a mounting seat, an air outlet end of the blower 802 is communicated with the air inlet pipe 801, a filter screen is mounted on an air inlet end of the blower 802, a plurality of air inlet holes 803 are formed in an evenly arranged structure at an upper end of the front wall of the module housing 1, a plurality of air outlet holes 804 are formed in an evenly arranged structure at a lower end of the rear wall of the module housing 1, and the air inlet pipe 801 is communicated with the air inlet holes 803; the blower 802 filters the outside air through the filter screen and then sends the outside air into the air inlet pipe 801, and the outside air enters the module housing 1 through the air inlet 803, presses the air inside the module housing 1, and discharges the air from the air outlet 804 to the exhaust box 805, so that the air circulation cools the lithium battery body 7.
As shown in fig. 1, 2, 4, 6 and 7, an exhaust box 805 is mounted on the rear wall of the module housing 1, the exhaust box 805 is communicated with an air outlet 804, the lower end of the exhaust box 805 is rotatably connected with a sealing baffle 806, the sealing baffle 806 is vertical to the lower end of the exhaust box 805 when closed, the top surface of the sealing baffle 806 is connected with a tension spring 807, the other end of the tension spring 807 is fixedly connected with the inner wall of the exhaust box 805, and the front end of the tension spring 807 is in friction contact with the rear wall of the module housing 1; when the internal pressure of the exhaust box 805 is greater than that of the outside, the sealing baffle 806 is pushed to rotate along the exhaust box 805 to be exhausted to the outside, at the moment, the tension springs 807 are stretched to convey redundant hot air to the outside of the exhaust box 805, and when the internal pressure of the exhaust box 805 is reduced, the sealing baffle 806 is rotated upwards by the restoring force of the tension springs 807, so that the front wall of the sealing baffle 806 is in friction contact with the outer wall of the module housing 1 to seal.
When the lithium battery module is used, external air is filtered by the filter screen through the air blower 802 and then conveyed into the air inlet pipe 801, enters the module shell 1 through the air inlet hole 803, extrudes air in the module shell 1 and is discharged into the exhaust box 805 from the air outlet hole 804, so that the air circulation cools the lithium battery body 7, when the internal pressure of the exhaust box 805 is higher than that of the outside, the sealing baffle 806 is pushed to rotate along the exhaust box 805 and is discharged to the outside, and at the moment, the tension spring 807 is stretched, and redundant hot air is conveyed to the outside of the exhaust box 805;
After the internal pressure of the exhaust box 805 is reduced, the sealing baffle 806 is rotated upwards by the restoring force of the tension spring 807, so that the front wall of the sealing baffle 806 is in friction contact with the outer wall of the module housing 1 to seal, external air is reduced to enter the exhaust box 805, flowing air is facilitated to cool the lithium battery body 7, and high-temperature damage of the lithium battery body 7 is reduced.
The foregoing is only a preferred embodiment of the present utility model, but the scope of the present utility model is not limited thereto, and any person skilled in the art, who is within the scope of the present utility model, should make equivalent substitutions or modifications according to the technical scheme of the present utility model and the inventive concept thereof, and should be covered by the scope of the present utility model.
Claims (8)
1. The utility model provides a bradyseism formula lithium battery module, includes module casing (1), its characterized in that: the utility model provides a lithium battery module, including module casing (1), sealed lid (2) top surface four corners department all has pegged graft and has been connected hand wheel (3), connection hand wheel (3) lower extreme all is through screw hole and module casing (1) upper end threaded connection, sealed lid (2) top surface is symmetrical structure and sets firmly two handles (4), sealed lid (2) bottom surface is evenly arranged structure and installs a plurality of rubber pads (5), the inside evenly arranged structure that is of module casing (1) has set firmly a plurality of baffles (6), adjacent two place lithium battery body (7) between baffle (6), rubber pad (5) bottom surface and lithium battery body (7) top surface friction contact, module casing (1) outer wall is equipped with cooling machanism (8).
2. The shock absorbing lithium battery module of claim 1, wherein: clamping blocks (601) are arranged on two sides of the partition board (6), a plurality of first springs (602) are fixedly arranged on the side walls of the clamping blocks (601) in a uniform arrangement structure, one ends of the first springs (602) are fixedly connected with the outer wall of the partition board (6), the upper ends of the clamping blocks (601) are inclined, and the outer walls of the clamping blocks (601) are in friction contact with the outer wall of the lithium battery body (7).
3. The shock absorbing lithium battery module of claim 1, wherein: the utility model discloses a lithium battery module, including module casing (1), locating piece (9), module casing (1) inner wall is front and back symmetrical structure and is equipped with a plurality of locating pieces (9), locating piece (9) back wall is evenly arranged structure and has set firmly a plurality of second springs (901), second spring (901) outer wall all is fixed with module casing (1) inner wall connection, locating piece (9) upper end is the slope structure, locating piece (9) inner wall and lithium battery body (7) outer wall friction contact.
4. The shock absorbing lithium battery module of claim 1, wherein: the inside bottom surface of module casing (1) is evenly arranged structure and installs a plurality of damping spring shock absorbers (10), damping spring shock absorber (10) top surface and lithium cell body (7) bottom surface friction contact.
5. The shock absorbing lithium battery module of claim 1, wherein: the heat dissipation mechanism (8) comprises an air inlet pipe (801), the rear wall of the air inlet pipe (801) is fixedly connected with the front wall of the module shell (1), the front wall of the module shell (1) is provided with a blower (802) through a mounting seat, and the air outlet end of the blower (802) is communicated with the air inlet pipe (801).
6. The shock absorbing lithium battery module of claim 5, wherein: the front wall upper end of the module shell (1) is provided with a plurality of air inlet holes (803) in a uniform arrangement structure, the rear wall lower end of the module shell (1) is provided with a plurality of air outlet holes (804) in a uniform arrangement structure, and the air inlet pipe (801) is communicated with the air inlet holes (803).
7. The shock absorbing lithium battery module of claim 6, wherein: the back wall of the module shell (1) is provided with an exhaust box (805), the exhaust box (805) is communicated with an air outlet (804), the lower end of the exhaust box (805) is rotationally connected with a sealing baffle (806), and the sealing baffle (806) is vertical to the lower end of the exhaust box (805) when being closed.
8. The shock absorbing lithium battery module of claim 7, wherein: the top surface of the sealing baffle plate (806) is connected with a tension spring (807), the other end of the tension spring (807) is fixedly connected with the inner wall of the exhaust box (805), and the front end of the tension spring (807) is in friction contact with the rear wall of the module shell (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202420061388.5U CN221632740U (en) | 2024-01-10 | 2024-01-10 | Shock-absorbing lithium battery module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202420061388.5U CN221632740U (en) | 2024-01-10 | 2024-01-10 | Shock-absorbing lithium battery module |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221632740U true CN221632740U (en) | 2024-08-30 |
Family
ID=92484479
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202420061388.5U Active CN221632740U (en) | 2024-01-10 | 2024-01-10 | Shock-absorbing lithium battery module |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221632740U (en) |
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2024
- 2024-01-10 CN CN202420061388.5U patent/CN221632740U/en active Active
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