CN114030845B - Automatic detection system for battery pack parameters of energy storage power station - Google Patents
Automatic detection system for battery pack parameters of energy storage power station Download PDFInfo
- Publication number
- CN114030845B CN114030845B CN202111429451.3A CN202111429451A CN114030845B CN 114030845 B CN114030845 B CN 114030845B CN 202111429451 A CN202111429451 A CN 202111429451A CN 114030845 B CN114030845 B CN 114030845B
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- battery pack
- charging
- connector
- discharging
- energy storage
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- 238000001514 detection method Methods 0.000 title claims abstract description 30
- 238000004146 energy storage Methods 0.000 title claims abstract description 19
- 238000007599 discharging Methods 0.000 claims description 37
- 230000000149 penetrating effect Effects 0.000 claims 1
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 210000001503 joint Anatomy 0.000 description 3
- 230000003044 adaptive effect Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 238000012163 sequencing technique Methods 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G43/00—Control devices, e.g. for safety, warning or fault-correcting
- B65G43/08—Control devices operated by article or material being fed, conveyed or discharged
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G13/00—Roller-ways
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G17/00—Conveyors having an endless traction element, e.g. a chain, transmitting movement to a continuous or substantially-continuous load-carrying surface or to a series of individual load-carriers; Endless-chain conveyors in which the chains form the load-carrying surface
- B65G17/30—Details; Auxiliary devices
- B65G17/38—Chains or like traction elements; Connections between traction elements and load-carriers
- B65G17/40—Chains acting as load-carriers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G17/00—Conveyors having an endless traction element, e.g. a chain, transmitting movement to a continuous or substantially-continuous load-carrying surface or to a series of individual load-carriers; Endless-chain conveyors in which the chains form the load-carrying surface
- B65G17/30—Details; Auxiliary devices
- B65G17/46—Means for holding or retaining the loads in fixed position on the load-carriers, e.g. magnetic
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G47/00—Article or material-handling devices associated with conveyors; Methods employing such devices
- B65G47/22—Devices influencing the relative position or the attitude of articles during transit by conveyors
- B65G47/26—Devices influencing the relative position or the attitude of articles during transit by conveyors arranging the articles, e.g. varying spacing between individual articles
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/36—Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC]
- G01R31/385—Arrangements for measuring battery or accumulator variables
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G2201/00—Indexing codes relating to handling devices, e.g. conveyors, characterised by the type of product or load being conveyed or handled
- B65G2201/02—Articles
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Secondary Cells (AREA)
Abstract
The invention provides an automatic detection system for battery pack parameters of an energy storage power station, and mainly relates to the field of battery detection. The automatic detection system for the parameters of the battery pack of the energy storage power station is characterized by comprising a front conveyor, a test table, a bearing table and a controller; the front conveyor comprises a frame body, a chain type conveying belt and a servo motor; the test bench is arranged above the tail end of the front conveyor and comprises a test frame, a discharge joint is arranged at the rear end of the test frame, a plurality of charging joints are arranged at the front end of the test frame, and linear driving devices are arranged between the top of the discharge joint and the test frame and between the charging joints and the test frame; the bearing table is arranged at the downstream of the pre-conveyor, and a plurality of conveying rollers are linearly arranged on the bearing table. The invention has the beneficial effects that: the invention can automatically complete the detection of the discharge performance of the battery pack and the replacement of the battery pack without the need of special personnel on duty, thereby improving the detection efficiency of the discharge performance of the battery pack.
Description
Technical Field
The invention mainly relates to the field of battery detection, in particular to an automatic detection system for battery pack parameters of an energy storage power station.
Background
The energy storage power station consists of individual battery packs, and the battery packs are the minimum energy storage units of the energy storage power station. After the energy storage power station is operated for a period of time, the performance condition of the battery pack needs to be detected. And the energy storage power station project of the company and the power grid collaborative construction is based on the fact that the returned storage battery is used as an energy storage battery pack after being repaired, and the energy storage and discharging performance of the battery pack is detected before and during operation.
To basic battery package resistance, discharge voltage, detection such as electric current can accomplish through the universal meter, but the discharge power of battery package, battery decay etc. function need pass through a whole discharge cycle just can accomplish, and in order to ensure battery detection's efficiency, just need have special personnel to nurse for a long time in order timely to change the battery package of detecting completion for battery package's discharge performance detection has greatly wasted the manpower.
Disclosure of Invention
In order to solve the defects in the prior art, the invention provides an automatic detection system for the parameters of the battery pack of the energy storage power station, which can automatically complete the detection of the discharge performance of the battery pack and the replacement of the battery pack, does not need special personnel on duty, and improves the detection efficiency of the discharge performance of the battery pack.
The invention aims to achieve the aim, and the aim is achieved by the following technical scheme:
the automatic detection system for the parameters of the battery pack of the energy storage power station is characterized by comprising a front conveyor, a test table, a bearing table and a controller;
the front conveyor comprises a frame body, a chain conveyor belt and a servo motor, wherein a driving wheel and a driven wheel are respectively arranged at two ends of the frame body, the servo motor is used for driving the driving wheel, the chain conveyor belt is tensioned between the driving wheel and the driven wheel, the chain conveyor belt comprises a conveying chain and a bearing belt which are matched with the driving wheel and the driven wheel, a plurality of baffle plates are uniformly arranged on the outer side of the conveying chain, the baffle plates penetrate through the bearing belt and are exposed above the bearing belt, and a plurality of side limiting plates are arranged on two sides of the bearing belt;
the test bench is arranged above the tail end of the front conveyor and comprises a test frame, a discharge joint is arranged at the rear end of the test frame, a plurality of charging joints are arranged at the front end of the test frame, and linear driving devices are arranged between the top of the discharge joint and the test frame and between the charging joints and the test frame;
the bearing table is arranged at the downstream of the front conveyor, and a plurality of conveying rollers are linearly arranged on the bearing table;
the servo motor and the linear driving device are electrically connected with the controller, and the discharging connector is in signal connection with the controller.
The driving wheels and the driven wheels are symmetrically arranged, the number of the chain type conveyer belts is two, and the two chain type conveyer belts are correspondingly arranged on the two groups of the driving wheels and the driven wheels.
The charging connector is connected with a charging wire, and a positive charging contact and a negative charging contact which are adaptive to the battery pack are arranged at the bottom of the charging connector.
The discharging connector is connected with a discharging wire, and a positive discharging contact and a negative discharging contact which are adaptive to the battery pack are arranged at the bottom of the discharging connector.
The linear driving device comprises a cylinder and a linear sliding rail, wherein sliding blocks are arranged on the discharging connector and the charging connector, the sliding blocks are in sliding fit with the linear sliding rail, a cylinder rod of the cylinder is connected with the sliding blocks, and the cylinder is used for driving the discharging connector or the charging connector to move along a straight line in the vertical direction.
And springs are arranged among the discharging connector, the charging connector and the sliding block.
Compared with the prior art, the invention has the beneficial effects that:
according to the invention, the battery pack needing to be subjected to discharge performance detection is placed on the front-end conveyor, and the stepping operation of the front-end conveyor is controlled by the controller, so that the stepping conveying of the battery pack can be realized, and the progressive detection of the battery pack is completed. After detection, the battery packs can be automatically arranged on the carrying table along with the operation of the front conveyor.
The device can carry out the detection of the subsequent battery packs in a relay manner after the detection of the battery packs is completed, a worker is not required to care, and only the monitoring data of the battery packs are required to be checked on time, and the device corresponds to the sequencing of the battery packs after the detection is completed.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is a schematic view of a partial cross-sectional structure of the front conveyor of the present invention;
FIG. 3 is a schematic view of the charging connector of the present invention in a three-dimensional view;
FIG. 4 is a schematic view of the partial enlarged construction of the A part of the present invention;
fig. 5 is a schematic top view of the bearing table of the present invention.
The reference numbers shown in the drawings: 1. a front conveyor; 2. a test bench; 3. a receiving table; 4. a controller; 5. a battery pack; 11. a frame body; 12. a chain conveyor belt; 13. a servo motor; 14. a driving wheel; 15. driven wheel; 16. a conveyor chain; 17. a carrier tape; 18. a baffle; 19. side limiting sheets; 21. a test rack; 22. a discharge joint; 23. a charging connector; 24. a linear driving device; 25. a cylinder; 26. a linear slide rail; 27. a slide block; 28. a spring; 31. and a conveying roller.
Detailed Description
The invention will be further described with reference to the accompanying drawings and specific embodiments. It is to be understood that these examples are illustrative of the present invention and are not intended to limit the scope of the present invention. Further, it will be understood that various changes or modifications may be made by those skilled in the art after reading the teachings of the invention, and such equivalents are intended to fall within the scope of the invention as defined herein.
As shown in fig. 1-5, the automatic detection system for parameters of battery packs of an energy storage power station provided by the invention comprises a pre-conveyor 1, a test table 2 and a carrying table 3 which are sequentially arranged, wherein the pre-conveyor 1 is used as an arrangement component for battery packs to be detected, the test table 2 is used for sequentially detecting discharge performance of the battery packs on the conveyor 1, detected battery pack data are recorded in a controller 4, and the detected battery packs are sequentially arranged on the carrying table 3.
The pre-conveyor 1 comprises a frame 11, a chain conveyor belt 12 and a servo motor 13, wherein a driving wheel 14 and a driven wheel 15 are respectively arranged at two ends of the frame 11 through bearings, the servo motor 13 is used for driving the driving wheel 13, and the chain conveyor belt 12 is tensioned between the driving wheel 14 and the driven wheel 15. The fixed distance conveying of the chain conveyor belt 12 can be realized by driving the servo motor 13, so that the battery pack arranged on the chain conveyor belt can be accurately displaced.
Specifically, the chain conveyor 12 includes a conveyor chain 16 and a carrier belt 17 that are matched with the driving wheel 14 and the driven wheel 15, wherein in order to ensure stable conveying of the chain conveyor 12, the driving wheel 14 and the driven wheel 15 are symmetrically arranged two, the number of the chain conveyor 12 is two, and the conveyor chains 16 of the two chain conveyors 12 are correspondingly arranged on the two groups of the driving wheel and the driven wheel 15. The carrier belt 17 is covered on the outer side of the conveying chain 16, and is made of PVC. The outside of the conveying chain 16 is uniformly provided with a plurality of baffle plates 18, the baffle plates 18 penetrate through the bearing belt 17 and then are exposed above the bearing belt 17, the distance between two adjacent baffle plates 18 is the width of the battery pack, two sides of the bearing belt 17 are provided with a plurality of side limiting plates 19, and the distance between the side limiting plates 19 at two sides is the length of the battery pack. By the arrangement of the baffle plates 18 and the side limiting plates 19, a limiting groove is provided for the battery pack, so that the position of the battery pack on the front conveyor 1 is limited.
The test bench 2 is mounted above the end of the pre-conveyor 1, and the test bench 2 comprises a test rack 21, the test rack 21 straddling the end of the pre-conveyor 1. The rear end of the test frame 21 is provided with a discharge connector 22, the discharge connector 22 is connected with a discharge wire, and the tail end of the discharge wire is connected with stable power consumption equipment as a power consumption device for detecting the discharge performance of the battery pack. The bottom of the discharging connector 22 is provided with a positive discharging contact and a negative discharging contact which are matched with the battery pack. The discharge connector 22 is abutted against the electrode plate of the battery pack, so that the battery pack is connected with a discharge loop, and the continuous discharge performance of the battery pack is detected. The front end of the test frame 21 is provided with a plurality of charging connectors 23, the charging connectors 23 are connected with a charging wire, and the bottom of each charging connector 23 is provided with a positive charging contact and a negative charging contact which are in butt joint with a battery pack electrode plate. The charging connector 23 interfaces the electrode tabs of the battery pack to allow the battery pack to connect to a charging circuit to charge the battery pack prior to performing the battery pack discharge performance test. And a linear driving device 24 is arranged between the top of the discharging connector 22 and the test frame 21 and between the charging connector 23 and the test frame 21, and the linear driving device 24 is used for driving the discharging connector 22 and the charging connector 23 to move in a linear manner in the vertical direction, so that the discharging connector 22 and the charging connector 23 are convenient to connect a battery pack circuit.
The carrying table 3 is positioned downstream of the pre-conveyor 1, and a plurality of conveying rollers 31 are linearly arranged on the carrying table 3. Along with the completion of the discharge performance detection of the battery pack, the battery pack is driven by the servo motor 13 in an equidistance stepping manner to drive the chain conveyor belt 12 to push onto the bearing table 3 for temporary storage. The staff only needs to check the discharging data of each battery pack recorded by the controller 4 at regular time and correspond to the sequence of the battery packs.
The servo motor 13 and the linear driving device 24 are electrically connected by the controller 4, the discharging data of the battery pack detected by the discharging connector 22 is recorded in the controller 4, and the controller 4 adopts an engineering computer. The worker may correspond the data numbers recorded by the controller 4 to the order of the battery packs so as to view the discharge performance data of the battery packs.
Specifically, the linear driving device 24 is used as an action unit for driving the discharging connector 22 and the charging connector 23 in the vertical direction, and has the specific structure that: including cylinder 25 and linear slide rail 26, the linear slide rail 26 symmetry sets up on test frame 21, the slider 27 is all installed to the both sides that discharge joint 22, charging joint 23, slider 27 and linear slide rail 26 sliding fit, cylinder 25 end-to-end connection is at test frame 21 top, and the cylinder pole of cylinder 25 is connected with the slider 27 on discharge joint 22/the charging joint 23 through the bulb for cylinder 25 can drive the linear motion of discharge joint 22 or charging joint 23 along vertical direction. More specifically, the discharging connector 22, the charging connector 23 and the sliding block 27 are connected through a spring 28. Therefore, the connection between the discharging connector 22 and the charging connector 23 and the electrode plate of the battery pack can be buffered, and the damage caused by the hard contact between the discharging connector 22 and the charging connector 23 and the electrode plate due to the pushing of the air cylinder 25 can be prevented.
In use, only the battery packs to be tested need first be placed on the chain conveyor 12, each battery pack being placed between a stop tab and a side restraint tab. When the detection is carried out, firstly, the front charging connector 23 is put down to be in contact with the electrode plate of the battery pack for charging operation, after the battery pack is fully charged, the servo motor 13 controls the chain conveyor belt 12 to advance by one battery pack distance, the battery pack is moved to the position below the discharging connector 22, the controller controls the air cylinder 25 to push the discharging connector 22 to be put down to be in contact with the electrode plate of the battery pack, and the discharging circuit is connected for detecting the discharging performance of the battery pack and recording the discharging performance in the controller 4. At this time, the front charging connector 23 is continuously lowered, the charging operation is performed on the subsequent battery pack, and the charging connector 23 is lifted up after the charging is completed. After the discharge performance detection record of one of the battery packs is completed, the discharge joint is lifted, the servo motor 13 controls the chain conveyor belt 12 to step by one battery pack distance, and the detected battery packs are pushed onto the bearing table 3 to be placed sequentially.
While the fundamental and principal features of the invention and advantages of the invention have been shown and described, it will be apparent to those skilled in the art that the invention is limited to the details of the foregoing exemplary embodiments, and that the invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.
Claims (4)
1. The automatic detection system for the parameters of the battery pack of the energy storage power station is characterized by comprising a front conveyor (1), a test table (2), a receiving table (3) and a controller (4);
the front conveyor (1) comprises a frame body (11), a chain conveyor belt (12) and a servo motor (13), wherein a driving wheel (14) and a driven wheel (15) are respectively arranged at two ends of the frame body (11), the servo motor (13) is used for driving the driving wheel (14), the chain conveyor belt (12) is tensioned between the driving wheel (14) and the driven wheel (15), the chain conveyor belt (12) comprises a conveying chain (16) and a bearing belt (17) which are matched with the driving wheel (14) and the driven wheel (15), a plurality of baffle plates (18) are uniformly arranged on the outer side of the conveying chain (16), the baffle plates (18) are exposed above the bearing belt (17) after penetrating through the bearing belt (17), and a plurality of side limiting plates (19) are arranged on two sides of the bearing belt (17).
The test bench (2) is arranged above the tail end of the front conveyor (1), the test bench (2) comprises a test frame (21), a discharge joint (22) is arranged at the rear end of the test frame (21), a plurality of charging joints (23) are arranged at the front end of the test frame (21), and linear driving devices (24) are arranged between the top of the discharge joint (22) and the test frame (21) and between the charging joints (23) and the test frame (21); the linear driving device (24) comprises an air cylinder (25) and a linear sliding rail (26), sliding blocks (27) are arranged on the discharging connector (22) and the charging connector (23), the sliding blocks (27) are in sliding fit with the linear sliding rail (26), an air cylinder rod of the air cylinder (25) is connected with the sliding blocks (27), the air cylinder (25) is used for driving the discharging connector (22) or the charging connector (23) to move along a straight line in the vertical direction, and springs (28) are arranged among the discharging connector (22), the charging connector (23) and the sliding blocks (27);
the bearing table (3) is arranged at the downstream of the pre-conveyor (1), and a plurality of conveying rollers (31) are linearly arranged on the bearing table (3);
the servo motor (13) and the linear driving device (24) are electrically connected with the controller (4), and the discharging connector (22) is in signal connection with the controller (4).
2. The automatic detection system for parameters of a battery pack of an energy storage power station according to claim 1, wherein: the driving wheels (14) and the driven wheels (15) are symmetrically arranged, the number of the chain type conveying belts (12) is two, and the two chain type conveying belts (12) are correspondingly arranged on the two groups of the driving wheels and the driven wheels (15).
3. The automatic detection system for parameters of a battery pack of an energy storage power station according to claim 1, wherein: the charging connector (23) is connected with a charging wire, and a positive charging contact and a negative charging contact which are suitable for a battery pack are arranged at the bottom of the charging connector (23).
4. The automatic detection system for parameters of a battery pack of an energy storage power station according to claim 1, wherein: the discharging connector (22) is connected with a discharging wire, and a positive discharging contact and a negative discharging contact which are matched with the battery pack are arranged at the bottom of the discharging connector (22).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111429451.3A CN114030845B (en) | 2021-11-29 | 2021-11-29 | Automatic detection system for battery pack parameters of energy storage power station |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111429451.3A CN114030845B (en) | 2021-11-29 | 2021-11-29 | Automatic detection system for battery pack parameters of energy storage power station |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114030845A CN114030845A (en) | 2022-02-11 |
| CN114030845B true CN114030845B (en) | 2024-03-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111429451.3A Active CN114030845B (en) | 2021-11-29 | 2021-11-29 | Automatic detection system for battery pack parameters of energy storage power station |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN205620525U (en) * | 2016-04-29 | 2016-10-05 | 驻马店市圣力源科技有限公司 | Battery automatic checkout device |
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| CN109103520A (en) * | 2018-08-20 | 2018-12-28 | 深圳威琳懋生物科技有限公司 | A kind of unmanned plane battery structure |
| CN211478589U (en) * | 2019-12-20 | 2020-09-11 | 洛阳捷鑫能源科技有限公司 | Lithium cell internal resistance automatic checkout device |
| CN111906051A (en) * | 2020-06-24 | 2020-11-10 | 风帆有限责任公司 | Welding quality detection equipment for storage battery busbar |
| CN212134046U (en) * | 2020-05-15 | 2020-12-11 | 深圳市科瑞隆科技有限公司 | Intelligent knocking test platform for lithium battery |
-
2021
- 2021-11-29 CN CN202111429451.3A patent/CN114030845B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103683429A (en) * | 2013-12-26 | 2014-03-26 | 苏州市启扬商贸有限公司 | Lithium battery charging system |
| CN205620525U (en) * | 2016-04-29 | 2016-10-05 | 驻马店市圣力源科技有限公司 | Battery automatic checkout device |
| CN206523559U (en) * | 2017-03-03 | 2017-09-26 | 江苏洛柳精密科技有限公司 | A kind of semi-automatic lithium battery PACK bags inner walkway equipment |
| CN109103520A (en) * | 2018-08-20 | 2018-12-28 | 深圳威琳懋生物科技有限公司 | A kind of unmanned plane battery structure |
| CN211478589U (en) * | 2019-12-20 | 2020-09-11 | 洛阳捷鑫能源科技有限公司 | Lithium cell internal resistance automatic checkout device |
| CN212134046U (en) * | 2020-05-15 | 2020-12-11 | 深圳市科瑞隆科技有限公司 | Intelligent knocking test platform for lithium battery |
| CN111906051A (en) * | 2020-06-24 | 2020-11-10 | 风帆有限责任公司 | Welding quality detection equipment for storage battery busbar |
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| Publication number | Publication date |
|---|---|
| CN114030845A (en) | 2022-02-11 |
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