CN217866753U - Driving wire for injecting electrolyte into power battery - Google Patents
Driving wire for injecting electrolyte into power battery Download PDFInfo
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- CN217866753U CN217866753U CN202222188242.0U CN202222188242U CN217866753U CN 217866753 U CN217866753 U CN 217866753U CN 202222188242 U CN202222188242 U CN 202222188242U CN 217866753 U CN217866753 U CN 217866753U
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- battery
- electrolyte
- conveying
- battery assembly
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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
Abstract
The application relates to a power battery injection electrolyte transmission line, is suitable for injecting the electrolyte and carrying to battery pack, includes: a conveying device adapted to convey the battery assembly; the conveying device comprises a first conveying assembly and a second conveying assembly; the liquid injection device is arranged on one side of the first conveying assembly and is suitable for injecting electrolyte into the battery assembly; the shifting device is arranged at one end of the conveying device, is suitable for being butted with the battery assembly moved to the end part of the first conveying assembly, and moves the battery assembly from the first conveying assembly to the second conveying assembly; wherein, power battery injection electrolyte transmission line still includes the stop device who is connected with first transport assembly, and stop device is suitable for will along with first transport assembly removes to the battery pack of priming device department spacing to make battery pack and priming device butt joint, make the priming device to inject the electrolyte in the battery pack then. By the above manner, the efficiency of injecting the electrolyte of the battery assembly can be improved.
Description
[ technical field ] A
The application relates to a power battery injection electrolyte transmission line, which belongs to the technical field of auxiliary equipment for battery production.
[ background of the invention ]
The production process of the power battery needs to be injected with liquid, wherein the liquid injection is a process of injecting electrolyte into a battery core packaged by the power battery so as to provide a carrier for the transmission of ions in the battery through the electrolyte. In the prior art, the liquid injection process generally adopts a manual work and a semi-automatic processing mode of corresponding processing equipment to carry out processing operation, and the processing efficiency is not high, so that the production efficiency of the power battery is reduced.
Accordingly, there is a need for improvements in the art that overcome the deficiencies in the prior art.
[ Utility model ] A method for manufacturing a semiconductor device
The purpose of the present application is to provide a power battery electrolyte injection transmission line, which can improve the efficiency of electrolyte injection to improve the production efficiency of power batteries.
The purpose of the application is realized by the following technical scheme: a power cell electrolyte injection drive line adapted to electrolyte-fill and deliver a battery assembly, comprising:
a conveying device adapted to convey the battery assembly; the conveying device comprises a first conveying assembly and a second conveying assembly;
the liquid injection device is arranged on one side of the first conveying assembly and is suitable for injecting electrolyte into the battery assembly; and
the shifting device is arranged at one end of the conveying device, is suitable for being butted with the battery assembly moved to the end part of the first conveying assembly and moves the battery assembly from the first conveying assembly to the second conveying assembly;
the power battery electrolyte injection transmission line further comprises a limiting device connected with the first conveying assembly, wherein the limiting device is suitable for limiting the battery assembly moving to the electrolyte injection device along with the first conveying assembly so as to enable the battery assembly to be in butt joint with the electrolyte injection device, and then the electrolyte injection device injects electrolyte into the battery assembly.
In one embodiment, the limiting devices are provided in two groups, and the two groups of limiting devices form a limiting space so as to accommodate the battery assembly in the limiting space.
In one embodiment, each set of limiting devices includes a first driving element and a limiting element connected to the first driving element, the first driving element drives the limiting element to move along a first direction, and the first direction is perpendicular to the moving direction of the battery assembly.
In one embodiment, a detection piece is arranged on the liquid injection device and is suitable for detecting whether the battery assembly moves in place or not;
when the detection piece detects that the battery assembly moves to the liquid injection device along with the first conveying assembly, the first driving piece drives the limiting piece to move along the first direction based on the detection result of the detection piece so as to limit the battery assembly.
In one embodiment, the shifting device comprises a base, a second driving member arranged on the base and capable of moving relative to the base, and a clamping member connected with the second driving member and provided with a shifting groove, wherein the shifting groove is arranged towards the conveying device so that the battery assembly moving along with the first conveying assembly moves into the shifting groove and is clamped with the shifting groove;
the second driving piece drives the clamping piece to move along a first direction after the battery assembly is clamped with the displacement groove, so as to drive the battery assembly to move from the first conveying assembly to the second conveying assembly; the first direction is perpendicular to a moving direction of the battery assembly.
In one embodiment, the shifting device further comprises a transmission member, the transmission member comprises a gear connected with the driving shaft of the second driving member, and a rack engaged with the gear and fixedly arranged on the base, and the rack is arranged along the first direction.
In one embodiment, the displacement device further comprises a guide member provided on the base, the guide member being adapted to guide a moving direction of the gripping member;
the guide piece is matched with the clamping piece, and the guide piece and the rack are arranged in parallel.
In one embodiment, the liquid injection device comprises a first frame body, a second frame body which is connected with the first frame body and can move along the height direction relative to the first frame body, and a liquid injection assembly which is connected with the second frame body.
In one embodiment, the liquid injection assembly comprises a liquid injection pump and a plurality of liquid injection ports which are communicated with the liquid injection pump and are uniformly distributed;
the electrolyte injection device further comprises a fixing assembly, the fixing assembly is connected with the second frame body, the fixing assembly is suitable for moving synchronously with the electrolyte injection assembly, so that when the fixing assembly fixes the battery assembly, the electrolyte injection port is communicated with the battery assembly to inject electrolyte into the battery assembly.
In one embodiment, the liquid injection device further comprises a third driving member and a threaded rod connecting the third driving member and the second frame body, and the threaded rod is in threaded connection with the second frame body.
Compared with the prior art, the method has the following beneficial effects: the conveying device conveys the battery assembly to the liquid injection device, the liquid injection device is suitable for injecting electrolyte into the battery assembly, the shifting device conveys the battery assembly injected with the electrolyte to the other position of the conveying device, then the next group of battery assemblies is relayed to inject the electrolyte, the whole electrolyte injection process does not need manual participation, the whole process is mechanical and automatic, convenience and rapidness are realized, and the electrolyte injection efficiency of the battery assembly is improved;
meanwhile, the limiting device is further arranged and is suitable for limiting the battery pack moved to the liquid injection device, so that the battery pack is in butt joint with the liquid injection device, the electrolyte injection efficiency of the battery pack is further improved, and the production efficiency of the power battery is further improved.
[ description of the drawings ]
Fig. 1 is a schematic structural diagram of a power battery injection electrolyte transmission line of the present application.
Fig. 2 is another schematic structural diagram of the power battery injection electrolyte transmission line of the present application.
Fig. 3 is a partial schematic view of fig. 2.
Fig. 4 is another schematic view of the structure of fig. 2.
Fig. 5 is a schematic view of yet another construction of the power cell injection electrolyte drive line of the present application.
Fig. 6 is a partial structural schematic diagram of fig. 5.
[ detailed description ] A
In order to make the aforementioned objects, features and advantages of the present application more comprehensible, embodiments accompanying the present application are described in detail below with reference to the accompanying drawings. It is to be understood that the specific embodiments described herein are merely illustrative of the application and are not limiting of the application. It should be further noted that, for the convenience of description, only some of the structures related to the present application are shown in the drawings, not all of the structures. 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 application.
The terms "comprising" and "having," as well as any variations thereof, in this application are intended to cover non-exclusive inclusions. For example, a process, method, system, article, or apparatus that comprises a list of steps or elements is not limited to only those steps or elements but may alternatively include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the application. The appearances of the phrase in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. It is explicitly and implicitly understood by one skilled in the art that the embodiments described herein can be combined with other embodiments.
Referring to fig. 1 to 6, a power battery electrolyte injection transmission line 10 according to a preferred embodiment of the present application is in signal connection with an external controller, and is adapted to inject and transmit electrolyte to a battery assembly 20. The battery assembly 20 is disposed on the power battery electrolyte injection transmission line 10 by a manipulator, and the external controller may be a control computer, a control circuit or a control chip, which are not described herein.
The battery assembly 20 includes a holder 202 and a battery 201 disposed in the holder 202. In this application, the shape of battery 201 is ultra-thin square sheet form, and is corresponding, and anchor clamps 202 include the base and a plurality of mountings of being connected with the base, and every two relative settings of a plurality of mountings are in order to form a fixed space, and battery 201 places in this fixed space. Wherein the top of each fixing member is provided with a guide surface 203, and the guide surface 203 is adapted to guide the placing direction of the battery 201. In this embodiment, the guiding surface 203 is disposed from top to bottom and inclined toward the fixing space.
Specifically, the power battery electrolyte injection transmission line 10 comprises a conveying device 1, a liquid injection device 2 and a displacement device 3, wherein the conveying device 1 is suitable for conveying the battery assembly 20, the liquid injection device 2 is suitable for injecting electrolyte into the battery assembly 20, and the displacement device 3 is suitable for being abutted with the battery assembly 20 to displace the battery assembly 20.
The conveying device 1 comprises a first conveying assembly 11 and a second conveying assembly 12, the first conveying assembly 11 and the second conveying assembly 12 are arranged in parallel, and the first conveying assembly 11 and the second conveying assembly 12 are identical in structure. Taking the first conveying assembly 11 as an example, the first conveying assembly 11 includes a machine base 111, a conveying belt 112 disposed on the machine base 111, and a driving motor 113 connected to the conveying belt 112, and the driving motor 113 is connected to the conveying belt 112 through a transmission wheel set. The gear set comprises a first driving wheel and a second driving wheel which are respectively arranged on two sides of the machine table 111, the conveying belt 112 is connected with the first driving wheel and the second driving wheel, and a motor shaft of the driving motor 113 is connected with the first driving wheel. That is, in the present embodiment, the driving motor 113 is operated to drive the first driving wheel to rotate, and then drive the conveying belt 112 and the second driving wheel to rotate, and the conveying belt 112 located between the first driving wheel and the second driving wheel can move, thereby driving the battery assembly 20 placed on the conveying belt 112 to move.
Referring to fig. 1, 5 and 6, the liquid injection device 2 is disposed at one side of the first conveying assembly 11 and is adapted to inject electrolyte into the battery assembly 20. Specifically, in the present embodiment, the liquid injection device 2 is disposed between the first conveying assembly 11 and the second conveying assembly 12, and is disposed toward the first conveying assembly 11 to inject the electrolyte into the battery assembly 20 on the first conveying assembly 11.
The liquid injection device 2 includes a first frame 21, a second frame 22 connected to the first frame 21 and capable of moving in a height direction relative to the first frame 21, and a liquid injection assembly connected to the second frame 22. The second frame 22 is arranged to be movable in the height direction relative to the first frame 21 so as to adjust the height of the filling device 2 to match the height of the battery assembly 20 without affecting the movement of the battery assembly 20 on the first conveying assembly 11. The first frame 21 has a through hole, and the second frame 22 is provided with a support column connected through the through hole, and when the second frame 22 moves relative to the first frame 21, the support column moves in the through hole.
The liquid injection device 2 further comprises a third driving member 22 and a threaded rod for connecting the third driving member 22 and the second frame body 22, and the threaded rod is in threaded connection with the second frame body 22. In this embodiment, the third driving member 22 is a motor, and the motor drives the threaded rod to rotate, so as to drive the second frame 22 to move along the height direction relative to the first frame 21.
The liquid injection assembly comprises a liquid injection pump and a plurality of liquid injection ports 23 which are communicated with the liquid injection pump and are uniformly distributed. The liquid injection pump is arranged on the second frame body 22 and is communicated with an external container through a connecting pipe, and the electrolyte in the container is conveyed to a plurality of liquid injection ports 23 through the liquid injection pump. The plurality of liquid injection ports 23 are uniformly distributed for the purpose of: the electrolyte can be uniformly supplied into the battery assembly 20. In addition, in this embodiment, the liquid injection pump is an acid-base corrosion-resistant metering pump, which can adjust the liquid injection amount according to actual requirements, and then precisely control the volume of the electrolyte injected into each battery assembly 20.
The electrolyte injection device 2 further comprises a fixing assembly 24, the fixing assembly 24 is connected with the second frame body 22, the fixing assembly 24 is suitable for moving synchronously with the electrolyte injection assembly, so that when the fixing assembly 24 fixes the battery assembly 20, the electrolyte injection port 23 is communicated with the battery assembly 20 to inject electrolyte into the battery assembly 20. In the embodiment, the fixing member 24 is disposed below the injection port 23, when the second frame 22 is moved downward to be fixed in abutment with the battery assembly 20, the fixing member 24 is first fixed in contact with the battery assembly 20, and then the injection port 23 communicates with the battery assembly 20 to inject the electrolyte into the battery assembly 20.
The fixing assembly 24 includes a fourth driving member 241 and a suction cup 243 connected to the fourth driving member 241 through a connecting member 242, wherein the fourth driving member 241 drives the connecting member 242 to move toward the battery assembly 20 so as to drive the suction cup 243 to move toward the battery assembly 20, so that the suction cup 243 fixes the battery assembly 20. In this embodiment, the fourth driver 241 may be a linear driver such as an electric cylinder or an air cylinder. When the battery assembly 20 moves to the liquid injection device 2, the second frame 22 moves downward so that the fourth driving member 241 drives the suction cup 243 to move toward the battery assembly 20. When the suction cup 243 is moved to the target position (for example, above the battery assembly 20 and a distance between the suction cup and the top of the battery assembly 20 is less than 5mm, which may be set according to actual conditions), the fourth driving member 241 drives the suction cup 243 to move in a first direction (indicated by an arrow a in the figure) to move in a direction approaching the battery assembly 20 until the suction cup 243 is attracted to the battery assembly 20. Wherein the first direction is perpendicular to the moving direction of the battery assembly 20.
In the present embodiment, two fixing assemblies 24 are provided, and the two fixing assemblies 24 are respectively disposed opposite to each other to clamp and fix both sides of the battery assembly 20.
Referring to fig. 2 and 3, the shifting device 3 is disposed at one end of the conveying device 1, and is adapted to be abutted to the battery assembly 20 moved to the end of the first conveying assembly 11, and move the battery assembly 20 from the first conveying assembly 11 to the second conveying assembly 12. The shifting device 3 includes a base 31, a second driving member 32 disposed on the base 31 and capable of moving relative to the base 31, and a clamping member 33 connected to the second driving member 32 and having a shifting groove 331, wherein the shifting groove 331 is disposed toward the conveying device 1, so that the battery assembly 20 moving with the first conveying assembly 11 moves into the shifting groove 331 and is clamped with the shifting groove 331. After the battery assembly 20 is clamped in the displacement slot 331, the second driving member 32 drives the clamping member 33 to move along the first direction, so as to drive the battery assembly 20 to move from the first conveying assembly 11 to the second conveying assembly 12. In this embodiment, the second driving member 32 is a motor or the like.
The displacement device 3 further comprises a transmission member comprising a gear connected to the drive shaft of the second driving member 32, a rack 34 engaged with the gear and fixedly arranged on the base 31, the rack 34 being arranged in the first direction. The second driving member 32 rotates to drive the gear to rotate, and then the gear is engaged with the rack 34, so as to drive the second driving member 32 and the clamping member 33 to move, and drive the battery assembly 20 located in the displacement groove 331 to move.
The displacement device 3 further comprises a guide 35 arranged on the base 31, the guide 35 being adapted to guide the direction of movement of the gripping member 33; the guide 35 is engaged with the holder 33, and the guide 35 is disposed in parallel with the rack 34. In this embodiment, the guiding element 35 is a sliding rail, and correspondingly, the holding element 33 is further provided with a sliding groove slidably engaged with the sliding rail. And, in order to make the movement of the clamping member 33 more stable, in this embodiment, the guide members 35 are provided in two, and the two guide members 35 are respectively provided at both sides of the rack 34 and are slidably engaged with both ends of the clamping member 33.
Referring to fig. 2 and 4, in order to enable the battery assembly 20 to be accurately butted with the electrolyte injection device 2, the power battery electrolyte injection transmission line 10 further includes a limiting device 4 connected to the first conveying assembly 11, and the limiting device 4 is adapted to limit the battery assembly 20 moving to the electrolyte injection device 2 along with the first conveying assembly 11, so that the battery assembly 20 is butted with the electrolyte injection device 2, and the electrolyte injection device 2 injects electrolyte into the battery assembly 20.
Specifically, two sets of limiting devices 4 are arranged, and the two sets of limiting devices 4 are respectively arranged along the length direction of the first conveying assembly 11, so that the two sets of limiting devices 4 form a limiting space to accommodate the battery assembly 20 in the limiting space. In the present embodiment, the two sets of position-limiting devices 4 have the same structure.
Each set of the limiting devices 4 includes a first driving element 41 and a limiting element 42 connected to the first driving element 41, and the first driving element 41 drives the limiting element 42 to move along a first direction. In the present embodiment, the first driving member 41 is a linear actuator such as an electric cylinder, an air cylinder, or a linear motor. One end of the limiting member 42 is connected to the output shaft of the first driving member 41.
In this embodiment, the position-limiting member 42 includes a position-limiting portion 421, a bending portion 422, and a connecting portion 423 connecting the position-limiting portion 421 and the bending portion 422, the bending portion 422 is connected to the output shaft of the first driving member 41, and the position-limiting portion 421 is adapted to be abutted with the battery assembly 20 to limit the position of the battery assembly 20.
In order to further improve the alignment efficiency of the battery assembly 20 and the liquid injection device 2, a detection piece is arranged on the liquid injection device 2, and the detection piece is suitable for detecting whether the battery assembly 20 moves in place or not. When the detection member detects that the battery assembly 20 moves to the liquid injection device 2 along with the first conveying assembly 11, the first driving member 41 drives the limiting member 42 to move in the first direction based on the detection result of the detection member, so as to limit the battery assembly 20. In this embodiment, the detecting member may be an infrared sensor, a pressure sensor, or the like. When the detecting member is an infrared sensor, the infrared sensor is disposed on the first frame body 21 or the second frame body 22; when the detecting member is a pressure sensor, the pressure sensor is disposed on the machine base 111.
The detecting member and the first driving member 41 are both connected to an external controller, and the control procedures of the detecting member and the first detecting member are conventional, and the control procedures are not modified accordingly in the present application.
In summary, the following steps: the conveying device 1 is provided with the conveying device 1, the liquid injection device 2 and the shifting device 3, the conveying device 1 conveys the battery assembly 20 to the liquid injection device 2, the liquid injection device 2 is suitable for injecting electrolyte into the battery assembly 20, the shifting device 3 conveys the battery assembly 20 injected with the electrolyte to the other position of the conveying device 1, the whole electrolyte injection process does not need manual participation, the whole process is mechanical and automatic, convenience and rapidness are realized, and the electrolyte injection efficiency of the battery assembly 20 is improved;
meanwhile, a limiting device 4 is further arranged, and the limiting device 4 is suitable for limiting the battery assembly 20 moved to the liquid injection device 2, so that the battery assembly 20 is in butt joint with the liquid injection device 2, the electrolyte injection efficiency of the battery assembly 20 is further improved, and the production efficiency of the power battery 201 is further improved.
The above is only one specific embodiment of the present application, and any other modifications based on the concept of the present application are considered as the protection scope of the present application.
Claims (10)
1. A power cell electrolyte injection drive line adapted to inject electrolyte into and deliver electrolyte to a cell assembly, comprising:
a conveying device adapted to convey the battery assembly; the conveying device comprises a first conveying assembly and a second conveying assembly;
the liquid injection device is arranged on one side of the first conveying assembly and is suitable for injecting electrolyte into the battery assembly; and
the shifting device is arranged at one end of the conveying device, is suitable for being butted with the battery assembly moved to the end part of the first conveying assembly and moves the battery assembly from the first conveying assembly to the second conveying assembly;
the power battery electrolyte injection transmission line further comprises a limiting device connected with the first conveying assembly, wherein the limiting device is suitable for limiting the battery assembly moving to the electrolyte injection device along with the first conveying assembly so as to enable the battery assembly to be in butt joint with the electrolyte injection device, and then the electrolyte injection device injects electrolyte into the battery assembly.
2. The power battery electrolyte injection transmission line of claim 1, wherein the limiting means are provided in two sets, and the two sets of limiting means form a limiting space for accommodating the battery assembly in the limiting space.
3. The power cell electrolyte injection drive line of claim 2, wherein each set of limiting means comprises a first driving member and a limiting member connected to the first driving member, the first driving member driving the limiting member to move in a first direction, the first direction being perpendicular to the moving direction of the cell assembly.
4. The power battery electrolyte injection transmission line as claimed in claim 3, wherein a detection member is arranged on the electrolyte injection device, and the detection member is adapted to detect whether the battery assembly is moved in place;
when the detection piece detects that the battery assembly moves to the liquid injection device along with the first conveying assembly, the first driving piece drives the limiting piece to move along the first direction based on the detection result of the detection piece so as to limit the battery assembly.
5. The power battery electrolyte injection drive line of claim 1, wherein the displacement device comprises a base, a second driving member disposed on the base and movable relative to the base, and a clamping member connected to the second driving member and having a displacement slot disposed toward the conveying device so that the battery assembly moving with the first conveying assembly moves into and clamps with the displacement slot;
the second driving piece drives the clamping piece to move along a first direction after the battery assembly is clamped with the displacement groove, so as to drive the battery assembly to move from the first conveying assembly to the second conveying assembly; the first direction is perpendicular to a moving direction of the battery assembly.
6. The power cell injected electrolyte drive line of claim 5, wherein the displacement device further comprises a transmission member comprising a gear coupled to the drive shaft of the second driving member, a rack engaged with the gear and fixedly disposed on the base, the rack being disposed along the first direction.
7. The power cell electrolyte injection drive line of claim 6 wherein said shifting means further comprises a guide member disposed on said base, said guide member adapted to guide the direction of movement of said clamping member;
the guide piece is matched with the clamping piece, and the guide piece and the rack are arranged in parallel.
8. The power battery electrolyte injection drive line of claim 1, wherein the electrolyte injection device comprises a first frame, a second frame connected to the first frame and movable in a height direction relative to the first frame, and an electrolyte injection assembly connected to the second frame.
9. The power battery electrolyte injection transmission line of claim 8, wherein the liquid injection assembly comprises a liquid injection pump and a plurality of liquid injection ports which are communicated with the liquid injection pump and are uniformly distributed;
the liquid injection device further comprises a fixing assembly, the fixing assembly is connected with the second frame body, the fixing assembly is suitable for moving synchronously with the liquid injection assembly, so that when the fixing assembly fixes the battery assembly, the liquid injection port is communicated with the battery assembly to inject electrolyte into the battery assembly.
10. The power battery electrolyte injection transmission line as claimed in claim 8, wherein the electrolyte injection device further comprises a third driving member and a threaded rod connecting the third driving member and the second frame, and the threaded rod is threadedly connected to the second frame.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222188242.0U CN217866753U (en) | 2022-08-19 | 2022-08-19 | Driving wire for injecting electrolyte into power battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222188242.0U CN217866753U (en) | 2022-08-19 | 2022-08-19 | Driving wire for injecting electrolyte into power battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217866753U true CN217866753U (en) | 2022-11-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222188242.0U Active CN217866753U (en) | 2022-08-19 | 2022-08-19 | Driving wire for injecting electrolyte into power battery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217866753U (en) |
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2022
- 2022-08-19 CN CN202222188242.0U patent/CN217866753U/en active Active
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