CN116500538A - Performance detection system of electricity consumption information acquisition device - Google Patents
Performance detection system of electricity consumption information acquisition device Download PDFInfo
- Publication number
- CN116500538A CN116500538A CN202310786619.9A CN202310786619A CN116500538A CN 116500538 A CN116500538 A CN 116500538A CN 202310786619 A CN202310786619 A CN 202310786619A CN 116500538 A CN116500538 A CN 116500538A
- Authority
- CN
- China
- Prior art keywords
- ammeter
- test bench
- current detection
- detection device
- analysis host
- Prior art date
- 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.)
- Granted
Links
- 238000001514 detection method Methods 0.000 title claims abstract description 58
- 230000005611 electricity Effects 0.000 title claims abstract description 15
- 238000012360 testing method Methods 0.000 claims abstract description 54
- 230000007246 mechanism Effects 0.000 claims abstract description 30
- 239000000523 sample Substances 0.000 claims abstract description 13
- 230000000149 penetrating effect Effects 0.000 claims abstract description 4
- 238000003860 storage Methods 0.000 claims description 18
- 238000004891 communication Methods 0.000 claims description 6
- 238000001454 recorded image Methods 0.000 claims description 3
- 238000001228 spectrum Methods 0.000 description 6
- 238000000034 method Methods 0.000 description 5
- 238000012937 correction Methods 0.000 description 3
- 238000001914 filtration Methods 0.000 description 3
- 230000002159 abnormal effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000004806 packaging method and process Methods 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 238000010923 batch production Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R35/00—Testing or calibrating of apparatus covered by the other groups of this subclass
- G01R35/04—Testing or calibrating of apparatus covered by the other groups of this subclass of instruments for measuring time integral of power or current
Abstract
The invention discloses a performance detection system of an electricity consumption information acquisition device, which comprises: the test bench is provided with a conveying groove and a conveying belt penetrating through the conveying groove, positioning mechanisms are respectively arranged on two sides of the conveying belt at the top of the test bench, and probes are arranged on the positioning mechanisms corresponding to wiring terminals of the intelligent ammeter; the fluctuation power supply is provided with an output end; the front current detection device is connected between the fluctuation power supply and the input end of the intelligent ammeter; the rear current detection device is connected to the load and the output end of the intelligent ammeter; the electric meter analysis host computer, the servo motor front-end current detection device of the positioning mechanism and the rear-end current detection device are communicated. According to the invention, the automatic detection of the intelligent ammeter is realized through the meter analysis host connected with the test bench, so that the labor cost is reduced, and the detection efficiency and accuracy are improved.
Description
Technical Field
The invention relates to the technical field of intelligent ammeter detection, in particular to a performance detection system of an electricity consumption information acquisition device.
Background
The intelligent ammeter is a common electricity consumption information acquisition device. In order to guarantee the precision and the stability of the intelligent electric meter, all intelligent electric meters need to be electrified to detect when leaving the factory, but because the detection process is complex, detection personnel are often required to continuously operate a wiring terminal and a power switch and evaluate whether the electric meter is qualified according to the running state of the electric meter, and in batch production, the detection means is time-consuming and labor-consuming, easy to make mistakes and low in manual inspection efficiency.
Disclosure of Invention
The invention aims to provide a performance detection system of an electricity consumption information acquisition device, which realizes automatic detection of an intelligent ammeter through a meter analysis host connected with a test bench, so that the labor cost is reduced, and the detection efficiency and accuracy are improved.
In order to achieve the purpose of the invention, the technical scheme provided by the invention is as follows:
a power consumption information acquisition device performance detection system, comprising: the device comprises a test board, a fluctuation power supply, a front current detection device, a load, a rear current detection device and an ammeter analysis host;
the top of the test bench is provided with a conveying groove and a conveying belt penetrating through the conveying groove, positioning mechanisms are respectively arranged on two sides of the conveying belt, the positioning mechanisms are used for positioning and clamping the intelligent ammeter on the conveying belt, and probes are arranged on the positioning mechanisms corresponding to wiring terminals of the intelligent ammeter; the fluctuation power supply is provided with an output end for providing test current; the preposed current detection device is connected between the fluctuation power supply and the input end of the intelligent electric meter; the rear current detection device is connected to the load and the output end of the intelligent ammeter; the ammeter analysis host is in communication connection with the servo motor of the positioning mechanism, the front current detection device and the rear current detection device.
The intelligent ammeter shooting device comprises a test bench, a camera and a control unit, wherein the camera is suspended above the test bench through a support arm connected with the test bench and is used for shooting the intelligent ammeter; the camera is electrically connected with the ammeter analysis host; the ammeter analysis host is provided with a first storage space and a second storage space, wherein the first storage space is used for storing ammeter reference images, and the second storage space is used for storing recorded images of the camera; the first storage space and the second storage space are respectively in communication connection with a processor of the ammeter analysis host.
The positioning mechanism comprises a servo motor, the output shaft of the servo motor extends vertically to the top of the test bench, the positioning mechanism further comprises a clamping arm vertically connected to the top end of the output shaft, the clamping arm is provided with a sliding groove along the length direction, a sliding block is matched in the sliding groove, and the probe is connected with the sliding block.
The top of the test bench is provided with an adjusting groove along the length direction of the conveying groove, and the servo motor is connected with the adjusting groove in a sliding fit manner through a connecting seat.
The intelligent ammeter test bench is characterized in that a counter is further arranged at the top of the test bench and is electrically connected with the ammeter analysis host and used for prompting and recording unqualified intelligent ammeters.
Compared with the prior art, the beneficial effects are as follows:
the system provided by the invention can be integrated on a self-feeding production line and positioned in front of a packaging line, when the intelligent ammeter reaches the conveying groove of the test bench through the conveying belt, the test bench senses the position of the intelligent ammeter by utilizing the existing means such as an infrared sensor and the like, and starts the positioning mechanism to clamp and fix the intelligent ammeter, meanwhile, the position setting of the probe is matched with the wiring terminal of the intelligent ammeter, and the electric connection relation is established and confirmed, and meanwhile, the driving system of the conveying belt can be also associated with the positioning mechanism, namely, when the positioning mechanism works, the conveying belt stops running. In the detection process, the ammeter analysis host computer compares the current states acquired by the front current detection device and the rear current detection device respectively, and when the comparison result does not accord with a preset value, the ammeter analysis host computer prompts and stops detection. According to the invention, the automatic detection of the intelligent ammeter is realized through the meter analysis host connected with the test bench, so that the labor cost is reduced, and the detection efficiency and accuracy are improved.
In addition, the camera is used for collecting image data of the currently tested intelligent ammeter and comparing the image data with the reference image in a video image mode, and when the intelligent ammeter is in a state different from the reference image in the testing process, the same ammeter analysis host machine makes an abnormal prompt and stops detection.
In addition, the top of the test bench is also provided with a counter, and the counter is electrically connected with the ammeter analysis host and is used for prompting and recording unqualified intelligent ammeter.
In addition, the servo motor is realized by adopting a stepping motor, and the clamping arm is rotated by 90 degrees according to a pulse signal sent by the ammeter analysis host, so that the intelligent ammeter is accurately clamped and fixed. The test bench top is followed conveying groove length direction is equipped with the adjustment tank, servo motor pass through the connecting seat with the adjustment tank cooperation, consequently, through the position of adjusting positioning mechanism to and the position of probe, realized that the test bench can adapt to the binding post of the smart electric meter of multiple different specifications.
Drawings
FIG. 1 is a schematic diagram of an embodiment of the present invention;
FIG. 2 is a schematic diagram of the top structure of a test bench according to an embodiment of the invention;
FIG. 3 is a cross-sectional view of a side structure of a test stand in accordance with an embodiment of the present invention;
FIG. 4 is a schematic view of a clamping arm according to an embodiment of the present invention;
in the figure, a test bench 1, a conveying groove 2, a conveying belt 3, a probe 4, a fluctuation power supply 5, a front current detection device 6, a load 7, a rear current detection device 8, an ammeter analysis host 9, a camera 10, a support arm 11, a servo motor 14, a clamping arm 15, a chute 16, a sliding block 17, an adjusting groove 18, a connecting seat 19, a counter 12 and a smart ammeter 13.
Description of the embodiments
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is evident that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
As shown in fig. 1-4, the structure of the embodiment provided by the invention is shown.
The embodiment of the invention provides a performance detection system of an electricity consumption information acquisition device, which comprises the following components: the testing device comprises a testing table 1, a fluctuation power supply 5, a front current detection device 6, a load 7, a rear current detection device 8 and an ammeter analysis host 9;
the top of the test bench 1 is provided with a conveying groove 2 and a conveying belt 3 penetrating through the conveying groove 2, positioning mechanisms are respectively arranged on two sides of the top of the test bench 1, which are positioned on the conveying belt 3, the positioning mechanisms are used for positioning and clamping the intelligent ammeter 13 on the conveying belt 3, and probes 4 are arranged on the positioning mechanisms corresponding to wiring terminals of the intelligent ammeter 13; the fluctuation power supply 5 is provided with an output end for providing test current; the prepositive current detection device 6 is connected between the fluctuation power supply 5 and the input end of the intelligent ammeter 13; the rear current detection device 8 is connected to the output end of the load 7 and the intelligent ammeter 13; the ammeter analysis host 9 is in communication connection with the servo motor 14 of the positioning mechanism, the front current detection device 6 and the rear current detection device 8.
The system can be integrated on a self-feeding production line and positioned in front of a packaging line, when the intelligent ammeter 13 reaches the conveying groove 2 of the test bench 1 through the conveying belt 3, the test bench 1 senses the position of the intelligent ammeter 13 by utilizing the existing means such as infrared sensors and the like, and starts a positioning mechanism to clamp and fix the intelligent ammeter 13, meanwhile, the position setting of the probe 4 is matched with the wiring terminal of the intelligent ammeter 13, and the electric connection relation is established, meanwhile, the driving system of the conveying belt 3 can be associated with the positioning mechanism, namely, when the positioning mechanism works, the conveying belt 3 stops running. In the detection process, the ammeter analysis host 9 compares the current states acquired by the front current detection device 6 and the rear current detection device 8 respectively, and when the comparison result does not accord with a preset value, the ammeter analysis host 9 gives a prompt and stops detection.
In a preferred embodiment, the invention further comprises a camera 10, wherein the camera 10 is suspended above the test bench 1 through a support arm 11 connected with the test bench 1 and is used for shooting the smart meter 13; the camera 10 is electrically connected with the ammeter analysis host 9; the electricity meter analysis host 9 is provided with a first storage space and a second storage space, wherein the first storage space is used for storing an electricity meter reference image, and the second storage space is used for storing a recorded image of the camera 10; the first storage space and the second storage space are respectively in communication connection with a processor of the electricity meter analysis host 9.
It should be noted that, the camera 10 collects the image data of the currently tested smart meter 13 and compares the image data with the reference image in a video image manner, when the smart meter 13 is in a state different from the reference image in the test process, the same meter analysis host 9 makes an abnormal prompt and stops the detection. In addition, the top of the test bench 1 is further provided with a counter 12, and the counter 12 is electrically connected with the electric meter analysis host 9, and is used for prompting and recording the unqualified intelligent electric meter 13.
In a preferred embodiment, the positioning mechanism comprises a servo motor 14, the output shaft of the servo motor 14 extends vertically to the top of the test bench 1, the positioning mechanism further comprises a clamping arm 15 vertically connected to the top end of the output shaft, the clamping arm 15 is provided with a sliding groove 16 along the length direction, a sliding block 17 is matched in the sliding groove 16, and the probe 4 is connected with the sliding block 17.
It should be noted that, the servo motor 14 is implemented by a stepper motor, and the clamping arm 15 is rotated by 90 degrees according to the pulse signal sent by the ammeter analysis host 9, so as to accurately clamp and fix the smart ammeter 13. The test bench 1 top is followed conveyer trough 2 length direction is equipped with adjustment tank 18, servo motor 14 pass through connecting seat 19 with adjustment tank 18 cooperation, consequently, through adjusting positioning mechanism's position to and probe 4's position, realized that test bench 1 can adapt to the binding post of the smart electric meter 13 of multiple different specifications.
In a preferred embodiment, an adjusting groove 18 is provided at the top of the test bench 1 along the length direction of the conveying groove 2, and the servo motor 14 is connected with the adjusting groove 18 in a sliding fit manner through a connecting seat 19. The test bench top is followed conveying groove length direction is equipped with the adjustment tank, servo motor pass through the connecting seat with the adjustment tank cooperation, consequently, through the position of adjusting positioning mechanism to and the position of probe, realized that the test bench can adapt to the binding post of the smart electric meter of multiple different specifications.
In a preferred embodiment, a counter 12 is further disposed on top of the test bench 1, and the counter 12 is electrically connected to the electricity meter analysis host 9, and is configured to prompt and record the failed smart electricity meter 13.
It should be noted that, the front current detection device 6 and the rear current detection device 8 have the same structure, and may adopt the following structure, including a signal acquisition module, a discrete filtering module, a linear correction module and a spectrum module; the signal acquisition module is used for acquiring a voltage signal and an electric energy signal on the power supply line to obtain an electric energy low-voltage signal; the discrete filtering module is used for performing discrete filtering processing on the electric energy low-voltage signal to obtain stable electric energy stability data; the linear correction module is used for carrying out data linear correction processing on the electric energy stable data to obtain electric energy specific data; the frequency spectrum module is used for generating an electric energy fluctuation frequency spectrum according to the electric energy specific data, wherein the electric energy frequency spectrum comprises a voltage frequency spectrum and a current frequency spectrum.
Finally, it should be noted that: the above-described embodiments are provided for illustration and description of the present invention only and are not intended to limit the invention to the embodiments described. In addition, it will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and that many variations and modifications may be made in accordance with the teachings of the present invention, which fall within the scope of the claimed invention.
Claims (5)
1. A power consumption information acquisition device performance detection system, comprising: the testing device comprises a testing table (1), a fluctuation power supply (5), a front current detection device (6), a load (7), a rear current detection device (8) and an ammeter analysis host (9);
the intelligent electric meter testing device is characterized in that a conveying groove (2) and a conveying belt (3) penetrating through the conveying groove (2) are arranged at the top of the testing table (1), positioning mechanisms are respectively arranged at two sides of the conveying belt (3) at the top of the testing table (1), the positioning mechanisms are used for positioning and clamping an intelligent electric meter (13) on the conveying belt (3), and probes (4) are arranged on the positioning mechanisms corresponding to wiring terminals of the intelligent electric meter (13); the fluctuation power supply (5) is provided with an output end for providing test current; the preposed current detection device (6) is connected between the fluctuation power supply (5) and the input end of the intelligent ammeter (13); the rear current detection device (8) is connected to the load (7) and the output end of the intelligent ammeter (13); the ammeter analysis host (9) is in communication connection with a servo motor (14) of the positioning mechanism, the front current detection device (6) and the rear current detection device (8).
2. The electricity consumption information acquisition device performance detection system of claim 1, wherein: the intelligent ammeter comprises a test bench (1), and is characterized by further comprising a camera (10), wherein the camera (10) is suspended above the test bench (1) through a support arm (11) connected with the test bench (1) and is used for shooting the intelligent ammeter (13); the camera (10) is electrically connected with the ammeter analysis host (9); the ammeter analysis host (9) is provided with a first storage space and a second storage space, the first storage space is used for storing ammeter reference images, and the second storage space is used for storing recorded images of the camera (10); the first storage space and the second storage space are respectively in communication connection with a processor of the ammeter analysis host (9).
3. The electricity consumption information acquisition device performance detection system of claim 2, wherein: the positioning mechanism comprises a servo motor (14), the output shaft of the servo motor (14) extends vertically to the top of the test bench (1), the positioning mechanism further comprises a clamping arm (15) vertically connected to the top end of the output shaft, a sliding groove (16) is formed in the clamping arm (15) along the length direction, a sliding block (17) is matched in the sliding groove (16), and the probe (4) is connected with the sliding block (17).
4. A power consumption information acquisition apparatus performance detection system according to claim 3, wherein: the top of the test bench (1) is provided with an adjusting groove (18) along the length direction of the conveying groove (2), and the servo motor (14) is connected with the adjusting groove (18) in a sliding fit manner through a connecting seat (19).
5. The electricity consumption information acquisition device performance detection system of claim 4, wherein: the top of the test bench (1) is also provided with a counter (12), and the counter (12) is electrically connected with the ammeter analysis host (9) and is used for prompting and recording unqualified intelligent ammeter (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310786619.9A CN116500538B (en) | 2023-06-30 | 2023-06-30 | Performance detection system of electricity consumption information acquisition device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310786619.9A CN116500538B (en) | 2023-06-30 | 2023-06-30 | Performance detection system of electricity consumption information acquisition device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN116500538A true CN116500538A (en) | 2023-07-28 |
| CN116500538B CN116500538B (en) | 2023-10-27 |
Family
ID=87318744
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310786619.9A Active CN116500538B (en) | 2023-06-30 | 2023-06-30 | Performance detection system of electricity consumption information acquisition device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116500538B (en) |
Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1931012A1 (en) * | 2006-12-07 | 2008-06-11 | ABB Research Ltd. | Method and device for monitoring digital signals generated in power electric meters working in substation automation system |
| US20130299306A1 (en) * | 2011-01-30 | 2013-11-14 | Zhejiang Electric Power Corporation | Fully-automatic verification system for intelligent electric energy meters |
| CN107462862A (en) * | 2017-07-07 | 2017-12-12 | 国网上海市电力公司 | A kind of ammeter detection device |
| CN107966674A (en) * | 2017-12-25 | 2018-04-27 | 江苏丽阳电子仪表有限公司 | For the pressure resistant testing device of intelligent electric meter and using its method of work |
| CN208520984U (en) * | 2018-08-07 | 2019-02-19 | 东莞市水电建筑安装工程有限公司 | A kind of ammeter defect intellectualized detection device |
| CN110275130A (en) * | 2019-06-24 | 2019-09-24 | 浙江华仪电子股份有限公司 | A kind of electric energy meter global function detection system |
| KR102075660B1 (en) * | 2018-09-04 | 2020-02-10 | 주식회사 엠스테크 | Check system for watt-hour meter |
| CN111983546A (en) * | 2020-08-26 | 2020-11-24 | 国网山东省电力公司营销服务中心(计量中心) | Ammeter detection configuration device and method |
| CN213240482U (en) * | 2020-04-29 | 2021-05-18 | 国网上海市电力公司 | Assembly line device for automatic processing of retired electric energy meter |
| CN113589217A (en) * | 2021-07-31 | 2021-11-02 | 万安裕高电子科技有限公司 | Intelligent ammeter defect detection device |
| CN114200381A (en) * | 2021-12-10 | 2022-03-18 | 清湖光旭数据科技(北京)有限公司 | System and method for detecting reliability of intelligent electric meter |
| CN218866088U (en) * | 2022-11-28 | 2023-04-14 | 重庆市耶勒电控成套设备有限公司 | Withstand voltage test platform and test device for ammeter |
-
2023
- 2023-06-30 CN CN202310786619.9A patent/CN116500538B/en active Active
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1931012A1 (en) * | 2006-12-07 | 2008-06-11 | ABB Research Ltd. | Method and device for monitoring digital signals generated in power electric meters working in substation automation system |
| US20130299306A1 (en) * | 2011-01-30 | 2013-11-14 | Zhejiang Electric Power Corporation | Fully-automatic verification system for intelligent electric energy meters |
| CN107462862A (en) * | 2017-07-07 | 2017-12-12 | 国网上海市电力公司 | A kind of ammeter detection device |
| CN107966674A (en) * | 2017-12-25 | 2018-04-27 | 江苏丽阳电子仪表有限公司 | For the pressure resistant testing device of intelligent electric meter and using its method of work |
| CN208520984U (en) * | 2018-08-07 | 2019-02-19 | 东莞市水电建筑安装工程有限公司 | A kind of ammeter defect intellectualized detection device |
| KR102075660B1 (en) * | 2018-09-04 | 2020-02-10 | 주식회사 엠스테크 | Check system for watt-hour meter |
| CN110275130A (en) * | 2019-06-24 | 2019-09-24 | 浙江华仪电子股份有限公司 | A kind of electric energy meter global function detection system |
| CN213240482U (en) * | 2020-04-29 | 2021-05-18 | 国网上海市电力公司 | Assembly line device for automatic processing of retired electric energy meter |
| CN111983546A (en) * | 2020-08-26 | 2020-11-24 | 国网山东省电力公司营销服务中心(计量中心) | Ammeter detection configuration device and method |
| CN113589217A (en) * | 2021-07-31 | 2021-11-02 | 万安裕高电子科技有限公司 | Intelligent ammeter defect detection device |
| CN114200381A (en) * | 2021-12-10 | 2022-03-18 | 清湖光旭数据科技(北京)有限公司 | System and method for detecting reliability of intelligent electric meter |
| CN218866088U (en) * | 2022-11-28 | 2023-04-14 | 重庆市耶勒电控成套设备有限公司 | Withstand voltage test platform and test device for ammeter |
Non-Patent Citations (1)
| Title |
|---|
| 孙丽娜等: "智能电表自动化检定流水线运行状态检测技术应用", 《国外电子测量技术》, vol. 37, no. 8 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN116500538B (en) | 2023-10-27 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109946639B (en) | Connect and tear device open and electric energy meter check table | |
| CN201796137U (en) | Full-automatic assembly line type re-checking device for electric energy meter | |
| CN104155593A (en) | Vehicle-mounted PCBA on-line testing system and testing method | |
| CN207430730U (en) | A kind of rotating disc type automatic testing equipment | |
| CN116500538B (en) | Performance detection system of electricity consumption information acquisition device | |
| CN213715390U (en) | CCS detects frock | |
| CN110515031B (en) | Electric energy meter detection equipment | |
| CN218824441U (en) | Battery testing mechanism | |
| CN102944788A (en) | Matched test desk of photovoltaic junction box test equipment | |
| CN106526327B (en) | DCR micro-resistance automatic measuring machine | |
| CN209784521U (en) | Connect dismouting to put and electric energy meter calibration stand | |
| CN107015556A (en) | A kind of bus solid-state power controller test device | |
| CN205562292U (en) | Power consumption information acquisition equipment pushes away tensile test device | |
| CN201773172U (en) | Static ageing test bed based on multi-way switch data acquisition analyzer | |
| CN212779911U (en) | Switch life test machine | |
| CN209820588U (en) | Positioning device for testing reed switch sensor | |
| CN210720677U (en) | Voltage internal resistance detection device of square battery module | |
| CN212410820U (en) | Automatic optical sensor testing equipment | |
| CN214951918U (en) | Automatic thrust testing device for stepping screw motor | |
| CN214151023U (en) | Automatic calibrating device of handheld digital multimeter | |
| CN218455728U (en) | Tray for battery and detection device | |
| CN216013698U (en) | SMT connects material machine to survey value mechanism | |
| CN220171071U (en) | Box structure for detecting battery cell | |
| CN219348679U (en) | Detection equipment for battery core electrode column | |
| CN115902623B (en) | Device for brushless motor test and control method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |