CN112510305B - Protective frame for lithium ion battery - Google Patents
Protective frame for lithium ion battery Download PDFInfo
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- CN112510305B CN112510305B CN202011400704.XA CN202011400704A CN112510305B CN 112510305 B CN112510305 B CN 112510305B CN 202011400704 A CN202011400704 A CN 202011400704A CN 112510305 B CN112510305 B CN 112510305B
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- rotating shaft
- protective frame
- lithium ion
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/05—Accumulators with non-aqueous electrolyte
- H01M10/052—Li-accumulators
- H01M10/0525—Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion batteries
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/05—Accumulators with non-aqueous electrolyte
- H01M10/058—Construction or manufacture
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/61—Types of temperature control
- H01M10/613—Cooling or keeping cold
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- 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
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- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Materials Engineering (AREA)
- Battery Mounting, Suspending (AREA)
Abstract
The invention relates to a protective frame, in particular to a protective frame for a lithium ion battery. The technical problem of the invention is that: the protective frame for the lithium ion battery can prevent vibration and cool air around the lithium battery. A protective frame for a lithium ion battery comprising: the number of the bottom plates is one; the first rotating shaft is rotatably arranged in the middle of the upper part of the bottom plate; the workbench is arranged on the upper part of the first rotating shaft; the box, the box sets up in workstation upper portion. The protective frame for the lithium ion battery has the advantages that the protective frame for the lithium ion battery can prevent vibration and cool the air around the lithium battery; the rotating plate and the fan plate are driven to rotate through the first rotating shaft, so that the temperature in the air can be reduced by the wind speed generated by rotation of the fan plate.
Description
Technical Field
The invention relates to a protective frame, in particular to a protective frame for a lithium ion battery.
Background
Lithium batteries have high energy and high storage energy density, and are generally used in digital products.
The lithium cell is after production is accomplished, need transport to each place and sells the use, because lithium is the metal that takes place chemical reaction very easily, easily extends and the burning, at the in-process of lithium cell packing and transportation, if the transport vechicle is on the way, comparatively jolts for the lithium cell is constantly shaken, and the temperature risees gradually in the transport vechicle, thereby makes the lithium cell explode easily.
Therefore, it is necessary to design a protection frame for a lithium ion battery, which can prevent vibration and cool the air around the lithium battery.
Disclosure of Invention
In order to overcome the defects that the lithium battery explodes due to the fact that the temperature in the air is increased and the lithium battery is bumpy in the transportation process, the technical problem of the invention is as follows: the protective frame for the lithium ion battery can prevent vibration and cool air around the lithium battery.
A protective frame for a lithium ion battery comprising: the number of the bottom plates is one; the first rotating shaft is rotatably arranged in the middle of the upper part of the bottom plate; the workbench is arranged on the upper part of the first rotating shaft; the box body is arranged on the upper part of the workbench; the fixing mechanism is arranged in the box body; and the damping mechanism is arranged on the lower side of the fixing mechanism.
Further, the fixing mechanism includes: the first supporting plate is movably connected to the inner pressing plate of the box body, and the pressing plates are symmetrically and rotatably arranged on the first supporting plate; the torsion spring is arranged between the pressing plate and the first supporting plate; and the limiting plates are symmetrically arranged on the upper part of the first supporting plate.
Further, the damper mechanism includes: the limiting frames are symmetrically arranged inside the box body; the damping spring is arranged in the limiting frame; and the second supporting plate is symmetrically arranged at the lower part of the first supporting plate and is connected with the damping spring.
Further, still include the fan and flow the mechanism, the fan flows the mechanism and includes: the motor is arranged on one side of the upper part of the bottom plate; the second rotating shaft is rotatably arranged at the position, close to the motor, of the upper part of the bottom plate; the bevel gear set is arranged between the output shaft of the motor and the second rotating shaft; the gear lack is arranged on the second rotating shaft; the first straight gear is arranged on the first rotating shaft and is meshed with the missing gear; the rotating plate is arranged on the first rotating shaft; the fan plate is arranged on the upper part of the rotating plate.
Further, still including humidification mechanism, humidification mechanism is including: the first limiting ring is arranged on the workbench; the second limiting ring is arranged on the outer side of the box body; the first fixing columns are symmetrically arranged on the upper part of the fan plate; the telescopic assembly is arranged on the first fixing column; the third rotating shafts are rotatably arranged on the telescopic assembly; the sponge balls are all arranged on the third rotating shaft.
Further, still including heat dissipation mechanism, heat dissipation mechanism is including: the second fixing columns are uniformly arranged on the upper part of the bottom plate, and the number of the second fixing columns is three; the water tank is arranged above the second fixing column; the mist spray heads are symmetrically arranged on the inner side of the water tank; the pressure pumps are all arranged on the mist spray heads; the connecting rods are symmetrically arranged at the upper part of the fan plate; the baffle, the baffle setting is on the connecting rod, baffle and water tank sliding type are connected.
Further, still including dipping in wet mechanism, dipping in wet mechanism includes: the water pipe is arranged at the upper part of the workbench; the wet dipping frame is arranged on the water pipe and is communicated with the water pipe; the annular rack is arranged on the water pipe; and the second straight gear is arranged on the third rotating shaft and is meshed with the annular rack.
Further, still including closing cap mechanism, closing cap mechanism includes: the third fixing column is arranged on the rear side of the box body; the cover plate is rotatably arranged on the third fixing column; and the handle is arranged in the middle of the cover plate.
The invention has the beneficial effects that: 1. the protective frame for the lithium ion battery has the advantages that the protective frame for the lithium ion battery can prevent vibration and cool the air around the lithium battery;
2. according to the invention, the lithium battery to be transported is placed on the first supporting plate for fixing, and the first supporting plate can continuously press the second supporting plate if the lithium battery is bumpy in the transportation process, so that the damping spring is intermittently deformed, and the vibration condition of the lithium battery can be reduced;
3. the rotating plate and the fan plate are driven to rotate through the first rotating shaft, so that the temperature in the air can be reduced by the wind speed generated by rotation of the fan plate.
Drawings
Fig. 1 is a schematic perspective view of a first part of the present invention.
Fig. 2 is a schematic perspective view of a second part of the present invention.
Fig. 3 is a schematic perspective view of the fixing mechanism of the present invention.
Fig. 4 is a schematic perspective view of the damping mechanism of the present invention.
Fig. 5 is a schematic perspective view of the fan flow mechanism of the present invention.
Fig. 6 is a schematic perspective view of the humidifying mechanism of the present invention.
Fig. 7 is a schematic perspective view of a heat dissipation mechanism according to the present invention.
FIG. 8 is a schematic perspective view of a dipping mechanism according to the present invention.
Fig. 9 is a schematic perspective view of the capping mechanism of the present invention.
In the above drawings: 1: bottom plate, 2: table, 21: first rotating shaft, 3: a box body, 4: fixing mechanism, 41: first pallet, 42: platen, 43: torsion spring, 44: limiting plate, 5: damper mechanism, 51: limiting frame, 52: damping spring, 53: second pallet, 6: fan flow mechanism, 61: motor, 62: second rotation shaft, 63: bevel gear set, 64: gear-lacking, 65: first straight gear, 66: rotating plate, 67: sector, 7: humidification mechanism, 71: first stop collar, 72: second stopper ring, 73: first fixing column, 74: telescoping assembly, 75: third shaft, 76: sponge ball, 8: heat dissipation mechanism, 81: second fixing column, 82: water tank, 83: mist head, 84: pressure pump, 85: link, 86: baffle, 9: dipping mechanism, 91: water pipe, 92: dip-wet frame, 93: annular rack, 94: second spur gear, 10: capping mechanism, 101: third fixing column, 102: cover plate, 103: a handle.
Detailed Description
Embodiments of the present invention will be described below with reference to the drawings.
Example 1
The utility model provides a protective frame for lithium ion battery, as shown in fig. 1, including bottom plate 1, workstation 2, first pivot 21, box 3, fixed establishment 4 and damper 5, the rotary type is equipped with first pivot 21 in the middle of bottom plate 1 upper portion, and first pivot 21 upper portion is equipped with workstation 2, and 2 upper portions of workstation are equipped with box 3, are equipped with fixed establishment 4 in the box 3, and 4 downside of fixed establishment are equipped with damper 5.
When people need transport the lithium battery, can use this protective frame, at first place the lithium battery that needs to place in fixed establishment 4, when the in-process of transportation of lithium battery, take place to jolt, damper 5 can alleviate vibrations.
Example 2
On the basis of embodiment 1, as shown in fig. 3 and 4, the fixing mechanism 4 includes a first supporting plate 41, a pressing plate 42, a torsion spring 43, and a limiting plate 44, the first supporting plate 41 is movably connected in the box 3, the pressing plate 42 is connected to the first supporting plate 41 in a symmetrical and rotating manner, the torsion spring 43 is connected between the pressing plate 42 and the first supporting plate 41, and the limiting plate 44 is symmetrically arranged on the upper portion of the first supporting plate 41.
When the user need place one row of lithium cell that packs, can rotate the clamp plate 42 of both sides for torsion spring 43 takes place deformation, and the user can place the lithium cell in first layer board 41 top afterwards, and the limiting plate 44 of both sides can be spacing to the lithium cell, places the completion back, and the user no longer exerts force to clamp plate 42, and under torsion spring 43's reset action, clamp plate 42 antiport resets, thereby can compress tightly fixedly to the lithium cell.
The damping mechanism 5 comprises a limiting frame 51, a damping spring 52 and a second supporting plate 53, the limiting frame 51 is symmetrically arranged in the box body 3, the damping spring 52 is arranged in the limiting frame 51, the second supporting plate 53 is symmetrically arranged on the lower portion of the first supporting plate 41, and the second supporting plate 53 is connected with the damping spring 52.
In the lithium battery transportation process, if the jolt is more severe, the lithium battery may explode, so that the first supporting plate 41 continuously presses the second supporting plate 53 in the shaking process, and in the process, the damping spring 52 continuously deforms and then resets, so that the shaking can be reduced.
Example 3
On the basis of embodiment 2, as shown in fig. 2 and fig. 5 to 9, the fan-flow mechanism 6 is further included, the fan-flow mechanism 6 includes a motor 61, a second rotating shaft 62, a bevel gear set 63, a missing gear 64, a first straight gear 65, a rotating plate 66 and a fan plate 67, the motor 61 is disposed on the front side of the upper portion of the base plate 1, the second rotating shaft 62 is rotatably disposed on the front side of the upper portion of the base plate 1, the bevel gear set 63 is connected between an output shaft of the motor 61 and the second rotating shaft 62, the missing gear 64 is disposed on the upper side of the second rotating shaft 62, the first straight gear 65 is disposed on the first rotating shaft 21, the first straight gear 65 is engaged with the missing gear 64, the rotating plate 66 is connected to the first rotating shaft 21, and the fan plate 67 is disposed on the upper portion of the rotating plate 66.
For preventing the lithium cell in the in-process of transportation, the high temperature, motor 61 can be opened to the user, drive bevel gear group 63 through motor 61 and then drive second pivot 62 and lack gear 64 and rotate, through lacking gear 64 and the meshing of first straight gear 65, and then drive first pivot 21, commentaries on classics board 66 and fan board 67 rotate, fan board 67 is at the pivoted in-process, can produce certain wind, thereby play the effect of cooling, when the use need not cool down the lithium cell, it can to close motor 61.
Still including humidification mechanism 7, humidification mechanism 7 is including first spacing ring 71, second spacing ring 72, first fixed column 73, flexible subassembly 74, third pivot 75 and sponge ball 76, be connected with first spacing ring 71 on the workstation 2, the box 3 outside is equipped with second spacing ring 72, fan plate 67 upper portion symmetry formula is equipped with first fixed column 73, be equipped with flexible subassembly 74 on the first fixed column 73, equal rotary type is connected with third pivot 75 on the flexible subassembly 74, all be equipped with sponge ball 76 in the third pivot 75.
The user can be drenched sponge ball 76, fan board 67 rotates and drives first fixed column 73, telescopic component 74, third pivot 75 and sponge ball 76 remove, because box 3 is hugged closely to sponge ball 76, thereby water on the sponge ball 76 can dip in on box 3, the effect of cooling is played, when telescopic component 74 and third pivot 75 rotate the bulge between first spacing ring 71 and the second spacing ring 72, telescopic component 74 is stretched, when telescopic component 74 and third pivot 75 rotate the bulge between first spacing ring 71 and the second spacing ring 72, telescopic component 74 resets.
The heat dissipation device comprises a heat dissipation mechanism 8, wherein the heat dissipation mechanism 8 comprises second fixing columns 81, a water tank 82, a mist spray head 83, a pressure pump 84, a connecting rod 85 and a baffle 86, the three second fixing columns 81 are uniformly arranged on the upper portion of the base plate 1, the water tank 82 is arranged above the second fixing columns 81, the mist spray heads 83 are symmetrically arranged on the inner side of the water tank 82, the pressure pump 84 is arranged on the mist spray heads 83, the connecting rod 85 is symmetrically arranged on the upper portion of the fan plate 67, the baffle 86 is arranged on the connecting rod 85, and the baffle 86 is connected with the water tank 82 in a sliding mode.
The user can add water in water tank 82, and water in water tank 82 is under the effect of force (forcing) pump 84, through vaporific shower nozzle 83 blowout vaporific drop of water, when baffle 86 rotated to vaporific shower nozzle 83 top, vaporific shower nozzle 83 no longer sprayed water, when baffle 86 rotated away vaporific shower nozzle 83 top, vaporific shower nozzle 83 can spray water to realize the effect of intermittent type water spray.
Still including dipping in wet mechanism 9, dip in wet mechanism 9 including water pipe 91, dip in wet frame 92, annular rack 93 and second straight- tooth gear 94, 2 upper portions of workstation are equipped with water pipe 91, are equipped with on the water pipe 91 and dip in wet frame 92, dip in wet frame 92 and water pipe 91 intercommunication, are equipped with annular rack 93 on the water pipe 91, are equipped with second straight-tooth gear 94 on the third pivot 75, second straight-tooth gear 94 and the meshing of annular rack 93.
The user can be at water pipe 91 and dip in wet frame 92 and add water, and when third pivot 75 drove second spur gear 94 and rotate to meshing with annular rack 93, third pivot 75 drove sponge ball 76 and rotate the half-turn earlier for sponge ball 76 can rotate to dip in make-up water in the wet frame 92, continues to rotate the half-turn afterwards, and box 3 is hugged closely to sponge ball 76 continuation.
The sealing mechanism 10 comprises a third fixing column 101, a cover plate 102 and a handle 103, the third fixing column 101 is arranged on the rear side of the box body 3, the cover plate 102 is rotatably arranged on the third fixing column 101, and the handle 103 is arranged in the middle of the upper portion of the cover plate 102.
When a user needs to take out or place the lithium battery in the fixing mechanism 4, the user can manually hold the handle 103, then rotate the cover plate 102 upwards, and when the user does not need to use the protection frame, the cover plate 102 is reversely rotated and reset.
While the present invention has been described with reference to exemplary embodiments, it is to be understood that the invention is not limited to the disclosed exemplary embodiments. The scope of the following claims is to be accorded the broadest interpretation so as to encompass all such modifications and equivalent structures and functions.
Claims (7)
1. A protective frame for a lithium ion battery is characterized by comprising:
the number of the bottom plates (1) is one;
the first rotating shaft (21), the first rotating shaft (21) is rotatably arranged in the middle of the upper part of the bottom plate (1);
the workbench (2), the workbench (2) is arranged on the upper part of the first rotating shaft (21);
the box body (3), the box body (3) is arranged on the upper part of the workbench (2);
the fixing mechanism (4), the fixing mechanism (4) is arranged in the box body (3);
the damping mechanism (5), the damping mechanism (5) is set up in the underside of the fixed mechanism (4);
still including fan flow mechanism (6), fan flow mechanism (6) including:
the motor (61), the motor (61) is arranged on one side of the upper part of the bottom plate (1);
the second rotating shaft (62), the second rotating shaft (62) is rotatably arranged at the position, close to the motor (61), of the upper part of the bottom plate (1);
the bevel gear set (63), the bevel gear set (63) is arranged between the output shaft of the motor (61) and the second rotating shaft (62);
the gear lack wheel (64), the gear lack wheel (64) is arranged on the second rotating shaft (62);
the first straight gear (65), the first straight gear (65) is set in the first spindle (21), the first straight gear (65) is meshed with the gear lack (64);
a rotating plate (66), the rotating plate (66) being provided on the first rotating shaft (21);
a fan plate (67), wherein the fan plate (67) is arranged on the upper part of the rotating plate (66).
2. A protective frame for lithium-ion batteries according to claim 1, characterized in that the fixing means (4) comprise:
the first supporting plate (41), the first supporting plate (41) is movably connected in the box body (3);
the pressing plate (42), the pressing plate (42) is symmetrically and rotatably arranged on the first supporting plate (41);
a torsion spring (43), the torsion spring (43) is arranged between the pressure plate (42) and the first supporting plate (41);
and the limiting plates (44), and the limiting plates (44) are symmetrically arranged at the upper part of the first supporting plate (41).
3. A protective frame for lithium ion batteries according to claim 2, characterized in that the shock-absorbing means (5) comprise:
the limiting frames (51), the limiting frames (51) are symmetrically arranged in the box body (3);
the damping spring (52), the damping spring (52) is set in the spacing frame (51);
the second supporting plate (53), the second supporting plate (53) is symmetrically arranged at the lower part of the first supporting plate (41), and the second supporting plate (53) is connected with the damping spring (52).
4. A protective frame for lithium ion batteries according to claim 3, characterized in that it further comprises humidifying means (7), the humidifying means (7) comprising:
the first limiting ring (71), the first limiting ring (71) is arranged on the workbench (2);
the second limiting ring (72) is arranged on the outer side of the box body (3);
the first fixing columns (73), the first fixing columns (73) are symmetrically arranged on the upper part of the fan plate (67);
the telescopic assembly (74), the telescopic assembly (74) is set in the first fixed column (73);
the third rotating shafts (75), the third rotating shafts (75) are all rotatably arranged on the telescopic assembly (74);
the sponge balls (76) and the sponge balls (76) are all arranged on the third rotating shaft (75).
5. A protective frame for lithium ion batteries according to claim 4, characterized in that it further comprises a heat dissipating means (8), the heat dissipating means (8) comprising:
the second fixing columns (81) are uniformly arranged on the upper portion of the bottom plate (1), and the number of the second fixing columns (81) is three;
the water tank (82), the water tank (82) is set up above the second fixed column (81);
the mist spray nozzles (83), the mist spray nozzles (83) are symmetrically arranged on the inner side of the water tank (82);
the pressure pumps (84), the pressure pumps (84) are all arranged on the mist spray head (83);
the connecting rods (85), the connecting rods (85) are symmetrically arranged on the upper part of the fan plate (67);
the baffle (86), baffle (86) set up on connecting rod (85), and baffle (86) and water tank (82) sliding connection.
6. A protective frame for lithium ion batteries according to claim 5, characterized in that it further comprises a wetting mechanism (9), the wetting mechanism (9) comprising:
the water pipe (91), the water pipe (91) is arranged on the upper part of the workbench (2);
the wetting frame (92), the wetting frame (92) is arranged on the water pipe (91), and the wetting frame (92) is communicated with the water pipe (91);
the annular rack (93), the annular rack (93) is set in water pipe (91);
and the second straight gear (94), the second straight gear (94) is arranged on the third rotating shaft (75), and the second straight gear (94) is meshed with the annular rack (93).
7. A protective frame for lithium ion batteries according to claim 6, characterized in that it further comprises a capping mechanism (10), the capping mechanism (10) comprising:
the third fixing column (101), the third fixing column (101) is arranged on the rear side of the box body (3);
the cover plate (102), the cover plate (102) is set on the third fixed column (101) in a rotating way;
the handle (103), the handle (103) is arranged in the middle of the upper part of the cover plate (102).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011400704.XA CN112510305B (en) | 2020-12-02 | 2020-12-02 | Protective frame for lithium ion battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011400704.XA CN112510305B (en) | 2020-12-02 | 2020-12-02 | Protective frame for lithium ion battery |
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| Publication Number | Publication Date |
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| CN112510305A CN112510305A (en) | 2021-03-16 |
| CN112510305B true CN112510305B (en) | 2022-06-21 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202011400704.XA Active CN112510305B (en) | 2020-12-02 | 2020-12-02 | Protective frame for lithium ion battery |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115040809B (en) * | 2022-06-20 | 2023-04-25 | 海天消防科技股份有限公司 | Sectionable fire extinguishing device of lithium ion battery energy storage power station |
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| JP2007321738A (en) * | 2006-06-05 | 2007-12-13 | Toyota Motor Corp | Duct and cooling device |
| CN109690090A (en) * | 2016-08-29 | 2019-04-26 | 松下知识产权经营株式会社 | Thermostat unit, humidity control system and vehicle |
| CN109037843A (en) * | 2018-08-14 | 2018-12-18 | 胡玉平 | A kind of new-energy automobile reserve battery radiator |
| CN208894942U (en) * | 2018-11-01 | 2019-05-24 | 江西量子新能源科技有限公司 | A kind of lithium battery production lithium metal cutter device |
| CN208921613U (en) * | 2018-11-01 | 2019-05-31 | 江西量子新能源科技有限公司 | A kind of use in lithium battery detection ejector pin mechanism |
| KR20200055584A (en) * | 2018-11-13 | 2020-05-21 | 디와이오토 주식회사 | Cooling fan apparatus for battery pack in electric vehicle provided with improved case assembly structure |
| CN109395511A (en) * | 2018-12-16 | 2019-03-01 | 刘山平 | A kind of engineering environment-friendly type Water-fog dusting apparatus |
| CN110640379A (en) * | 2019-10-28 | 2020-01-03 | 无锡先导智能装备股份有限公司 | Positioning mechanism and welding auxiliary device |
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| CN112510305A (en) | 2021-03-16 |
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