CN111289696B - Danger test box for lithium battery explosion - Google Patents
Danger test box for lithium battery explosion Download PDFInfo
- Publication number
- CN111289696B CN111289696B CN202010188062.5A CN202010188062A CN111289696B CN 111289696 B CN111289696 B CN 111289696B CN 202010188062 A CN202010188062 A CN 202010188062A CN 111289696 B CN111289696 B CN 111289696B
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- cavity
- chamber
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- explosion
- side wall
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/50—Constructional details
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/50—Constructional details
- H04N23/52—Elements optimising image sensor operation, e.g. for electromagnetic interference [EMI] protection or temperature control by heat transfer or cooling elements
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/18—Closed-circuit television [CCTV] systems, i.e. systems in which the video signal is not broadcast
Abstract
The invention discloses a danger testing box for lithium battery explosion, which comprises a frame body, wherein an opening cavity is arranged in the frame body, a transmission cavity is arranged at the bottom wall of the opening cavity, a rotating cavity is arranged on the top wall of the opening cavity, a lifting cavity communicated with the opening cavity is arranged on the right side wall of the rotating cavity, when a safety box moves rightwards, a sliding block moves rightwards under the action of a spring so as to be away from a trigger power supply device, and the trigger power supply device stops supplying power to a reciprocating motor under the condition that the sliding block does not touch the sliding block.
Description
Technical Field
The invention relates to the related field of lithium batteries, in particular to a danger testing box for lithium battery explosion.
Background
At present, with the development of society, the rapid development of the lithium battery industry is promoted by the continuous progress of new energy technology, the lithium battery can be subjected to batch-pumping explosion test before leaving a factory, the service life of the conventional explosion test box is not long under the condition of bearing the explosion damage of the lithium battery, and a camera can be polluted by some stains under the condition of explosion when the explosion is monitored, so that the photographing effect can be influenced, and therefore, the invention of the danger test box for lithium battery explosion is needed.
Disclosure of Invention
The invention aims to provide a danger testing box for lithium battery explosion, which aims to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme: a danger testing box for lithium battery explosion comprises a frame body, wherein an opening cavity is formed in the frame body, a transmission cavity is formed in the bottom wall of the opening cavity, a rotating cavity is formed in the top wall of the opening cavity, a lifting cavity communicated with the opening cavity is formed in the right side wall of the rotating cavity, and a protection device capable of performing clamping testing on a lithium battery is arranged between the rotating cavity and the opening cavity;
the protection device can prevent fragments of the lithium battery from splashing around and accidentally injuring workers when the lithium battery explodes, the protection device comprises a transmission motor fixedly arranged on one of the front side wall and the rear side wall of the transmission cavity, the transmission motor is in power connection with a motor shaft towards the direction of the other side wall, the motor shaft is in rotary connection with the other side wall, a first gear is fixedly arranged on the motor shaft, a safety box slides leftwards and rightwards on the inner wall of the opening cavity, an explosion cavity used for fixing the lithium battery and controlling the explosion of the lithium battery is arranged in the safety box, a bottom wall cavity is arranged on the bottom wall of the explosion cavity, a hydraulic cavity is arranged on the lower side of the bottom wall cavity, side cavities communicated with the hydraulic cavity are symmetrically arranged on the left side and the right side of the bottom wall of the bottom cavity, a thread motor is fixedly arranged on the bottom wall of the hydraulic cavity, a thread shaft is rotatably arranged between the upper side, the inner wall of each side cavity is slidably connected with a T-shaped plate, one side of a single rod of each T-shaped plate penetrates through one side wall of each side cavity, which is close to the bottom wall cavity, and enters the bottom wall cavity, and is slidably connected with one side wall of the bottom wall cavity, each T-shaped plate is fixedly provided with a clamping block in the bottom wall cavity, a controller is arranged on the two clamping blocks to realize the spontaneous explosion of the lithium battery, clamping openings of the two clamping blocks are close to each other, a rack which is meshed with the transmission cavity is fixedly arranged on the bottom surface of the safety box, a limiting cavity which vertically corresponds to the lifting cavity is arranged on the upper side of the safety box, a reciprocating motor is fixedly arranged on the rear side wall of the rotating cavity, the front side of the reciprocating motor is dynamically connected with a rotating shaft which is rotatably connected with the front side wall of the rotating cavity, a second gear is fixedly arranged on the rotating shaft, a limiting rod is slidably connected in the lifting cavity up, the limiting rod can enter the limiting cavity so as to limit the movement of the safety box in the left and right directions;
the opening chamber roof is equipped with the chamber of making a video recording, the chamber left and right sides of making a video recording runs through and is equipped with the reciprocating chamber, the back lateral wall on reciprocating chamber right side with a lateral wall in rotation chamber leads to, rotate the chamber with it monitors the monitoring device who shoots to be equipped with the explosion process between the chamber to make a video recording.
Preferably, the monitoring device comprises a camera fixedly mounted on the top wall of the camera shooting cavity, toughened glass is fixedly arranged on the upper side of the reciprocating cavity in the camera shooting cavity, the bottom surface of the toughened glass and the top wall of the reciprocating cavity are located on the same horizontal plane, a cleaning plate capable of cleaning the lower surface of the toughened glass is connected to the reciprocating cavity in a sliding mode, a rotating rod group is fixedly arranged on the rear side of the rotating shaft, and the tail end of the rotating rod group is connected with the front end face and the rear end face of the right side of the cleaning plate through connecting shafts.
Preferably, the left side wall of the opening cavity is provided with a sliding cavity, a sliding block is connected in the sliding cavity in a sliding mode, a spring is connected between the left side face of the sliding block and the left side wall of the sliding cavity, a trigger power supply device used for supplying power to the reciprocating motor is fixedly arranged on the left side wall of the sliding cavity, when the safety box moves leftwards, the sliding block moves leftwards to extrude the sliding block to the left side of the sliding cavity, and finally the sliding block touches the trigger power supply device to supply power to the reciprocating motor.
Preferably, the left side wall of the reciprocating cavity is provided with a collecting cavity, and the left side of the collecting cavity is provided with a door plate.
In conclusion, the beneficial effects of the invention are as follows: compared with some existing test boxes for the explosion danger of lithium batteries, the explosion safety box has the advantages that double protection is performed through the safety box and the frame body during explosion, the explosion safety is greatly improved, the whole explosion process can be monitored and stored, so that workers can conveniently observe the explosion process for many times, and compared with other devices provided with monitoring cameras, the explosion safety box is provided with transparent safety glass between the cameras and the explosion space, and the glass can be cleaned before and after testing, so that the monitoring clarity is guaranteed.
Drawings
In order to more clearly illustrate the embodiments of the invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the invention, and it is obvious for those skilled in the art that other drawings can be obtained based on these drawings without creative efforts.
FIG. 1 is a schematic view of a whole full-section structure of a danger testing box for lithium battery explosion according to the present invention;
FIG. 2 is a sectional view of the rear side of the rotating chamber 41 of FIG. 1 according to the present invention;
fig. 3 is a cross-sectional view taken along the line a-a of fig. 1 in accordance with the present invention.
Detailed Description
All of the features disclosed in this specification, or all of the steps in any method or process so disclosed, may be combined in any combination, except combinations where mutually exclusive features or steps are mutually exclusive.
Any feature disclosed in this specification (including any accompanying claims, abstract and drawings), may be replaced by alternative features serving equivalent or similar purposes, unless expressly stated otherwise. That is, unless expressly stated otherwise, each feature is only an example of a generic series of equivalent or similar features.
The invention will now be described in detail with reference to fig. 1-3, for the sake of convenience, the orientations described hereinafter being defined as follows: the up, down, left, right, and front-back directions described below correspond to the up, down, left, right, and front-back directions in the projection relationship of fig. 1 itself.
Referring to fig. 1-3, an embodiment of the present invention is shown: the utility model provides a dangerous test box of lithium cell explosion, includes framework 20, be equipped with opening chamber 28 in the framework 20, opening chamber 28 diapire is equipped with transmission chamber 51, opening chamber 28 roof is equipped with rotates chamber 41, rotate chamber 41 right side wall be equipped with the communicating lift chamber 44 in opening chamber 28, rotate chamber 41 with be equipped with the protection device 101 that can press from both sides tight test to the lithium cell between the opening chamber 28, protection device 101 can prevent that the lithium cell from spattering the personnel of accidentally injuring in the piece when exploding, protection device 101 includes fixed mounting in the transmission motor 63 of one of them lateral wall of lateral wall around transmission chamber 51, transmission motor 63 is connected with motor shaft 50 to another lateral wall direction power, motor shaft 50 rotates with another lateral wall to be connected, first gear 49 has set firmly on the motor shaft 50, the opening chamber 28 inner wall slides left and right has safety box 26, the safety box 26 is provided with an explosion cavity 48 for fixing a lithium battery and controlling the explosion of the lithium battery, the bottom wall of the explosion cavity 48 is provided with a bottom wall cavity 31, the lower side of the bottom wall cavity 31 is provided with a hydraulic cavity 55, the left side and the right side of the bottom wall cavity 31 are symmetrically provided with side cavity 27 communicated with the hydraulic cavity 55, the bottom wall of the hydraulic cavity 55 is fixedly provided with a threaded motor 53, a threaded shaft 52 is rotatably arranged between the upper side of the threaded motor 53 and the top wall of the hydraulic cavity 55, the threaded shaft 52 is in threaded connection with a partition plate 54 in up-and-down sliding connection with the inner wall of the hydraulic cavity 55, the inner wall of each side cavity 27 is in sliding connection with a T-shaped plate 29, one side of a single rod of the T-shaped plate 29 penetrates through a side wall of the side cavity 27 close to the bottom wall cavity 31 to enter the bottom wall cavity 31 and is in sliding connection with a side wall of the bottom wall cavity 31, and each T-shaped plate, the two clamping blocks 30 are provided with controllers for realizing the self-explosion of lithium batteries, the clamping openings of the two clamping blocks 30 are close to each other, the bottom surface of the safety box 26 is fixedly provided with a rack 21 meshed with the transmission cavity 51, the upper side of the safety box 26 is provided with a limiting cavity 47 vertically corresponding to the lifting cavity 44, the rear side wall of the rotating cavity 41 is fixedly provided with a reciprocating motor 59, the front side of the reciprocating motor 59 is in power connection with a rotating shaft 42 rotatably connected with the front side wall of the rotating cavity 41, the rotating shaft 42 is fixedly provided with a second gear 43, the lifting cavity 44 is vertically and movably connected with a limiting rod 46, the limiting rod 46 is meshed with the second gear 43, the limiting rod 46 can enter the limiting cavity 47 to limit the movement of the safety box 26 in the left and right directions, the top wall of the opening cavity 28 is provided with a camera shooting cavity 36, and the camera shooting cavity 36 is provided with a reciprocating cavity 35 in the, the rear side wall on the right side of the reciprocating cavity 35 is communicated with a side wall of the rotating cavity 41, and a monitoring device 102 for monitoring and shooting an explosion process is arranged between the rotating cavity 41 and the camera cavity 36.
In addition, in one embodiment, the monitoring device includes a camera 37 fixedly mounted on the top wall of the camera chamber 36, toughened glass 38 is fixedly arranged on the upper side of the reciprocating cavity 35 in the camera shooting cavity 36, the bottom surface of the toughened glass 38 and the top wall of the reciprocating cavity 35 are positioned on the same horizontal plane, a cleaning plate 39 capable of cleaning the lower surface of the tempered glass 38 is slidably connected in the reciprocating cavity 35, a rotating rod group 61 is fixedly arranged at the rear side of the rotating shaft 42, the tail end of the rotating rod group 61 is connected with the front and rear end surfaces at the right side of the cleaning plate 39 through a connecting shaft 40, the rotation of the rotating rod set 61 can drive the connecting shaft 40 to move horizontally, the rotation of the rotating shaft 42 drives the rotating rod set 61 to rotate, then, the connecting shaft 40 is driven to reciprocate in the left-right direction, so as to drive the cleaning plate 39 to reciprocate in the left-right direction in the reciprocating cavity 35.
In addition, in one embodiment, the left side wall of the open cavity 28 is provided with a sliding cavity 24, a sliding block 22 is connected in a sliding way in the sliding cavity 24, a spring 23 is connected between the left side surface of the sliding block 22 and the left side wall of the sliding cavity 24, a trigger power supply 25 for supplying power to the reciprocating motor 59 is fixedly arranged on the left side wall of the sliding cavity 24, when the safety box 26 moves leftwards, the sliding block 22 moves leftwards to press the sliding block 22 to the left side of the sliding cavity 24, finally, the sliding block 22 touches the trigger power supply 25 to supply power to the reciprocating motor 59, when the safety box 26 moves rightward, the slider 22 moves rightward away from the trigger power supply 25 by the spring 23, the trigger power supplier 25 stops the power supply to the reciprocating motor 59 without being touched by the slider 22.
In addition, in one embodiment, a collection cavity 33 is arranged on the left side wall of the reciprocating cavity 35, and a door plate 34 is arranged on the left side of the collection cavity 33, so that the cleaning plate 39 cleans the tempered glass 38 and then removes stains on the tempered glass 38 into the collection cavity 33, and garbage in the reciprocating cavity 35 is disposed after a certain period.
In the initial state, the safety box 26 is retracted in the open cavity 28, the limit rod 46 is inserted into the limit cavity 47, the cleaning plate 39 closes the imaging cavity 36, and the two clamping blocks 30 are at the farthest distance from each other.
When the lithium battery needs to be subjected to the explosion hazard test, the reciprocating motor 59 is forwardly opened to drive the rotating shaft 42 to rotate, the second gear 43 is further driven to rotate to drive the limiting rod 46 to ascend, the restriction on the movement of the safety box 26 in the left-right direction is eliminated, meanwhile, the rotating shaft 42 rotates to drive the rotating rod group 61 to rotate, then the connecting shaft 40 is driven to reciprocate in the left-right direction, the cleaning plate 39 is further driven to move rightwards in the reciprocating cavity 35 to open the camera shooting cavity 36, the transmission motor 63 is forwardly opened to drive the motor shaft 50 to rotate, the transmission cavity 51 is further driven to rotate, the safety box 26 is driven to move rightwards through the rack 21 to completely expose the explosion cavity 48, when the safety box 26 moves rightwards, the sliding block 22 moves rightwards under the action of the spring 23 to be far away from the trigger power supply 25, and the trigger power supply 25 stops supplying power to the reciprocating motor 59 under the condition that, then, a lithium battery is placed between the two clamping blocks 30, then the threaded motor 53 is turned on, so that the threaded shaft 52 is driven to rotate, then the partition plate 54 is driven to ascend, then hydraulic oil in the hydraulic cavity 55 is conveyed into the two side cavities 27, and then the two cleaning plates 39 are pushed to move towards the center of the bottom wall cavity 31, so that the two clamping blocks 30 are driven to approach each other, and then the lithium battery is fixed through the two collecting cavities 33;
then, the transmission motor 63 is rotated reversely, so that the safety box 26 is driven to move leftwards until the safety box 26 enters the leftmost side of the open cavity 28, at the moment, the sliding block 22 is extruded to the left side of the sliding cavity 24, and finally, the sliding block 22 touches the trigger power supply 25 to supply power to the reciprocating motor 59;
then, the self-explosion of the lithium battery is realized through a controller on the worker clamping block 30, and in the process, the camera 37 monitors the explosion process of the lithium battery in real time, so that the explosion process is kept;
the residue is taken out at the end of the explosion, then the reciprocating motor 59 is reversely opened, so that the dirt on the toughened glass 38 is cleaned through the leftward movement of the cleaning plate 39, the dirt is conveyed into the collection cavity 33, and the door plate 34 is opened after a certain period, so that the garbage is taken out.
The invention has the beneficial effects that: compared with some existing test boxes for the explosion danger of lithium batteries, the explosion safety box has the advantages that double protection is performed through the safety box and the frame body during explosion, the explosion safety is greatly improved, the whole explosion process can be monitored and stored, so that workers can conveniently observe the explosion process for many times, and compared with other devices provided with monitoring cameras, the explosion safety box is provided with transparent safety glass between the cameras and the explosion space, and the glass can be cleaned before and after testing, so that the monitoring clarity is guaranteed.
The above description is only an embodiment of the invention, but the scope of the invention is not limited thereto, and any changes or substitutions that are not thought of through the inventive work should be included in the scope of the invention. Therefore, the protection scope of the invention should be subject to the protection scope defined by the claims.
Claims (4)
1. The utility model provides a dangerous test box of lithium cell explosion, includes the framework, its characterized in that: an opening cavity is formed in the frame body, a transmission cavity is formed in the bottom wall of the opening cavity, a rotating cavity is formed in the top wall of the opening cavity, a lifting cavity communicated with the opening cavity is formed in the right side wall of the rotating cavity, and a protection device capable of performing clamping test on the lithium battery is arranged between the rotating cavity and the opening cavity;
the protection device can prevent fragments of the lithium battery from splashing around and accidentally injuring workers when the lithium battery explodes, the protection device comprises a transmission motor fixedly arranged on one of the front side wall and the rear side wall of the transmission cavity, the transmission motor is in power connection with a motor shaft towards the direction of the other side wall, the motor shaft is in rotary connection with the other side wall, a first gear is fixedly arranged on the motor shaft, a safety box slides leftwards and rightwards on the inner wall of the opening cavity, an explosion cavity used for fixing the lithium battery and controlling the explosion of the lithium battery is arranged in the safety box, a bottom wall cavity is arranged on the bottom wall of the explosion cavity, a hydraulic cavity is arranged on the lower side of the bottom wall cavity, side cavities communicated with the hydraulic cavity are symmetrically arranged on the left side and the right side of the bottom wall of the bottom cavity, a thread motor is fixedly arranged on the bottom wall of the hydraulic cavity, a thread shaft is rotatably arranged between the upper side, the inner wall of each side cavity is slidably connected with a T-shaped plate, one side of a single rod of each T-shaped plate penetrates through one side wall of each side cavity, which is close to the bottom wall cavity, and enters the bottom wall cavity, and is slidably connected with one side wall of the bottom wall cavity, each T-shaped plate is fixedly provided with a clamping block in the bottom wall cavity, a controller is arranged on the two clamping blocks to realize the spontaneous explosion of the lithium battery, clamping openings of the two clamping blocks are close to each other, a rack which is meshed with the transmission cavity is fixedly arranged on the bottom surface of the safety box, a limiting cavity which vertically corresponds to the lifting cavity is arranged on the upper side of the safety box, a reciprocating motor is fixedly arranged on the rear side wall of the rotating cavity, the front side of the reciprocating motor is dynamically connected with a rotating shaft which is rotatably connected with the front side wall of the rotating cavity, a second gear is fixedly arranged on the rotating shaft, a limiting rod is slidably connected in the lifting cavity up, the limiting rod can enter the limiting cavity so as to limit the movement of the safety box in the left and right directions;
the opening chamber roof is equipped with the chamber of making a video recording, the chamber left and right sides of making a video recording runs through and is equipped with the reciprocating chamber, the back lateral wall on reciprocating chamber right side with a lateral wall in rotation chamber leads to, rotate the chamber with it monitors the monitoring device who shoots to be equipped with the explosion process between the chamber to make a video recording.
2. The explosion hazard testing box for lithium batteries according to claim 1, characterized in that: monitoring device includes fixed mounting and is in the ware of making a video recording of chamber roof, make a video recording in the chamber reciprocating chamber upside has set firmly toughened glass, the toughened glass bottom surface with reciprocating chamber roof is in same horizontal plane, sliding connection has the clearance board that can clear up in the reciprocating chamber the toughened glass lower surface, the axis of rotation rear side has set firmly the rotating rod group, the rotating rod group tail end with the front and back terminal surface of the right side position of clearance board passes through the connecting axle.
3. The explosion hazard testing box for lithium batteries according to claim 1, characterized in that: the utility model discloses a safety box, including opening chamber, safety box, opening chamber left side wall, sliding cavity left side wall is equipped with the sliding cavity, sliding connection has the slider in the sliding cavity, the slider left surface with be connected with the spring between the sliding cavity left side wall, sliding cavity left side wall sets firmly be used for the trigger power supply ware of reciprocating motor power supply, will when the safety box moves left the slider will move left the slider extrudees sliding cavity left side, finally the slider touches trigger the power supply ware and then give reciprocating motor supplies power.
4. The explosion hazard testing box for lithium batteries according to claim 1, characterized in that: the reciprocating cavity left side wall is equipped with collects the chamber, it is equipped with the door plant to collect the chamber left side.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010188062.5A CN111289696B (en) | 2020-03-17 | 2020-03-17 | Danger test box for lithium battery explosion |
| GBGB2014698.1A GB202014698D0 (en) | 2020-03-17 | 2020-09-18 | Dangerous test box for explosion of lithium battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010188062.5A CN111289696B (en) | 2020-03-17 | 2020-03-17 | Danger test box for lithium battery explosion |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111289696A CN111289696A (en) | 2020-06-16 |
| CN111289696B true CN111289696B (en) | 2020-12-22 |
Family
ID=71030986
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010188062.5A Active CN111289696B (en) | 2020-03-17 | 2020-03-17 | Danger test box for lithium battery explosion |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN111289696B (en) |
| GB (1) | GB202014698D0 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113804855B (en) * | 2021-09-15 | 2024-02-27 | 中国电力科学研究院有限公司 | Method and system for measuring overpressure of explosion shock waves of battery |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5985675A (en) * | 1997-12-31 | 1999-11-16 | Charm Sciences, Inc. | Test device for detection of an analyte |
| CN101650373B (en) * | 2009-07-23 | 2012-02-29 | 广东出入境检验检疫局检验检疫技术中心 | Explosion protection method and device when testing rechargeable battery |
| CN207234952U (en) * | 2017-09-28 | 2018-04-13 | 河北山口安防科技有限公司 | A kind of anti-explosion surveillance camera |
| CN207663025U (en) * | 2017-11-10 | 2018-07-27 | 广州市速检检测技术有限公司 | A kind of lithium battery combustion testing machine |
| CN108490028A (en) * | 2018-02-08 | 2018-09-04 | 深圳市城市公共安全技术研究院有限公司 | Detection apparatus for lithium cell booster effect |
| CN108956298A (en) * | 2018-07-31 | 2018-12-07 | 舒海球 | A kind of bulletproof halmet test device |
| CN208722929U (en) * | 2018-08-13 | 2019-04-09 | 海口博澳邦兴新能源科技有限公司 | A kind of high capacity polymer lithium ion battery charge and discharge explosion-proof tank |
| CN109669126A (en) * | 2018-12-19 | 2019-04-23 | 南京楚卿电子科技有限公司 | A kind of multifunctional lithium battery explosion-proof test machine |
| CN110712987B (en) * | 2019-11-08 | 2021-01-12 | 北京瑞源华德科技有限公司 | Security inspection equipment capable of automatically transferring explosives |
| CN110641310A (en) * | 2019-11-11 | 2020-01-03 | 缙云叶普电子科技有限公司 | Circuit protection device used during charging of new energy automobile |
-
2020
- 2020-03-17 CN CN202010188062.5A patent/CN111289696B/en active Active
- 2020-09-18 GB GBGB2014698.1A patent/GB202014698D0/en not_active Ceased
Also Published As
| Publication number | Publication date |
|---|---|
| CN111289696A (en) | 2020-06-16 |
| GB202014698D0 (en) | 2020-11-04 |
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