CN113238155B - Battery fault or failure detection method based on impact discharge - Google Patents
Battery fault or failure detection method based on impact discharge Download PDFInfo
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- CN113238155B CN113238155B CN202110701959.8A CN202110701959A CN113238155B CN 113238155 B CN113238155 B CN 113238155B CN 202110701959 A CN202110701959 A CN 202110701959A CN 113238155 B CN113238155 B CN 113238155B
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- 238000001514 detection method Methods 0.000 title claims abstract description 60
- 238000012360 testing method Methods 0.000 claims abstract description 27
- 238000000034 method Methods 0.000 claims abstract description 25
- 230000008569 process Effects 0.000 claims abstract description 12
- 239000002184 metal Substances 0.000 claims description 51
- 229910052751 metal Inorganic materials 0.000 claims description 51
- 230000008859 change Effects 0.000 claims description 10
- 238000013461 design Methods 0.000 claims description 6
- 230000005389 magnetism Effects 0.000 claims description 6
- 208000032953 Device battery issue Diseases 0.000 claims description 5
- 230000009471 action Effects 0.000 claims description 5
- 238000004891 communication Methods 0.000 claims description 5
- 230000005484 gravity Effects 0.000 claims description 4
- 239000000463 material Substances 0.000 claims description 4
- 229920003023 plastic Polymers 0.000 claims description 4
- 239000004033 plastic Substances 0.000 claims description 4
- 238000001179 sorption measurement Methods 0.000 claims description 3
- 238000011895 specific detection Methods 0.000 claims description 2
- 230000000007 visual effect Effects 0.000 abstract description 2
- 208000028659 discharge Diseases 0.000 description 33
- 230000007246 mechanism Effects 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 238000009863 impact test Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- 230000001052 transient effect Effects 0.000 description 1
Classifications
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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
-
- 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
- G01R31/12—Testing dielectric strength or breakdown voltage ; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing
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Abstract
The invention discloses a battery fault or failure detection method based on impact discharge, and particularly relates to the technical field of impact discharge. The invention can carry out multistage detection when carrying out impact discharge test on the battery assembly in the use process, can effectively judge the state of the battery assembly after the test, has convenient operation, and relates to a device component which is simple and practical, has good safety performance in the test process and is more visual in observation of the detection result.
Description
Technical Field
The invention relates to the technical field of impact discharge, in particular to a battery fault or failure detection method based on impact discharge.
Background
The impulse discharge voltage refers to the voltage when the insulation medium breaks down under the action of the impulse voltage, the lightning in the nature is hit, the impulse voltage and current wave with high amplitude and MHz level will appear at the lightning striking place, in order to research the discharge mechanism of the lightning phenomenon in nature, the discharge development process and mechanism of various insulation structures in the impulse discharge form are researched, the discharge research of various gap types and arrangement modes is carried out through test equipment simulating impulse high voltage, and the capturing, observing and explaining are carried out through the multi-azimuth observation means such as transient current, voltage, light, sound, electric field, magnetic field and the like, so as to try to find the intrinsic mechanism.
The existing battery fault or failure detection method based on impact discharge is poor in detection mode in actual use, and the state of the battery assembly after the test cannot be intuitively judged.
Disclosure of Invention
In order to overcome the defects in the prior art, the embodiment of the invention provides a battery fault or failure detection method based on impact discharge, which can carry out multistage detection when a battery assembly is subjected to impact discharge test in the use process, can effectively judge the state of the battery assembly after the test, is convenient to operate, and relates to a device component which is simple and practical, has good safety performance in the test process and visual observation of a detection result, so as to solve the problems in the prior art.
In order to achieve the above purpose, the present invention provides the following technical solutions: the battery fault or failure detection method based on impact discharge comprises a battery assembly, wherein an input end of the battery assembly is electrically connected with an impact discharge control module, an output end of the battery assembly is electrically connected with a battery fault or failure detection unit, the outside of the battery assembly is also electrically connected with a voltage and current detection unit, the battery fault or failure detection unit comprises an electromagnet electrically connected with the output end of the battery assembly, one side of the electromagnet is provided with a signal lamp, a metal pressing plate is arranged below the electromagnet, a signal lamp snap switch electrically connected with the signal lamp is arranged below the metal pressing plate, and an input end of the signal lamp snap switch is electrically connected with a storage battery.
Step one: firstly, according to the design, a circuit connection is carried out on an impact discharge control module, a battery assembly, a battery fault or failure detection unit and a voltage and current detection unit, after the circuit connection, whether the voltage and the current of the battery assembly are in a stable state or not is detected through the voltage and current detection unit, and the electromagnet is ensured to be electrified and adsorbed on a metal pressing plate, and a signal lamp is in a non-bright state;
Step two: an operator performs an impact discharge test on the battery assembly through the impact discharge control module, in the test process, the voltage and current change of the battery assembly is monitored in real time through the voltage and current detection unit, and further fault judgment is performed on the battery assembly through observing the battery fault or the change of a signal lamp on the failure detection unit;
Step three: under a normal state, the electromagnet generates magnetism to adsorb the metal pressing plate after being electrified through the battery assembly, the metal pressing plate does not generate pressure on the signal lamp spring switch, the signal lamp spring switch is in a disconnection state, and the signal lamp is not on;
Step four: when the impact discharge control module performs impact discharge test on the battery assembly, three conditions exist, the first is that the battery assembly directly fails, at the moment, the electromagnet is powered off and demagnetized, the metal pressing plate falls under the action of gravity to cause pressure on the signal lamp snap switch, so that the signal lamp snap switch is closed, the storage battery supplies power to the signal lamp, and the signal lamp is lighted; the second is that the battery assembly still keeps a normal state, at the moment, after the electromagnet is electrified, the electromagnet generates magnetism to adsorb the metal pressing plate, the metal pressing plate does not generate pressure on the signal lamp spring switch, the signal lamp spring switch is in a disconnection state, and the signal lamp is not on; the third is that the battery assembly is in an unstable state, and the electromagnetic iron is unstable in adsorption to the metal pressing plate, so that the brightness of the signal lamp is weaker.
In a preferred embodiment, the voltage and current detection unit uses a universal meter or other device with voltage and current data detection function.
In a preferred embodiment, the outside of the battery fault or failure detection unit is a hollow shell member, the electromagnet, the metal pressing plate, the signal lamp snap switch and the storage battery are all arranged in the hollow shell, the signal lamp is arranged outside the hollow shell, and the input end of the signal lamp is electrically connected with the output end of the signal lamp snap switch through a wire.
In a preferred embodiment, a fixing frame is installed outside the electromagnet, the fixing frame is made of insulating plastic materials, and the fixing frame is fixedly connected with the inner wall of the hollow shell through screws.
In a preferred embodiment, the signal lamp snap switch comprises a socket fixed at the bottom of the hollow shell, and a spring type elastic control button is arranged on the socket and used for controlling the electrical communication between the signal lamp and the storage battery.
In a preferred embodiment, the guide rails for limiting the metal pressing plate in the vertical direction are fixedly arranged on two sides of the metal pressing plate in the hollow shell.
The invention has the beneficial effects that:
The invention designs a battery fault or failure detection method based on impact discharge, which is characterized in that when in use, the voltage and current change of a battery assembly is monitored in real time through a voltage and current detection unit, and further fault judgment is carried out on the battery assembly by observing the change of a signal lamp on the battery fault or failure detection unit, so that the technical method can carry out multistage detection on the battery assembly in the process of impact discharge test in the use process, and can effectively judge the state of the battery assembly after the test.
Drawings
Fig. 1 is a schematic diagram of the present invention.
Fig. 2 is a schematic diagram of a battery failure or failure detection unit according to the present invention.
The reference numerals are: 1. an impact discharge control module; 2. a battery assembly; 3. a battery failure or failure detection unit; 4. a voltage-current detection unit; 31. an electromagnet; 32. a metal pressing plate; 33. the signal lamp spring switch; 34. a signal lamp; 35. and a storage battery.
Detailed Description
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 apparent 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.
The battery fault or failure detection method based on impact discharge as shown in fig. 1-2 comprises a battery assembly 2, wherein an input end of the battery assembly 2 is electrically connected with an impact discharge control module 1, an output end of the battery assembly 2 is electrically connected with a battery fault or failure detection unit 3, the outside of the battery assembly 2 is also electrically connected with a voltage and current detection unit 4, the battery fault or failure detection unit 3 comprises an electromagnet 31 electrically connected with the output end of the battery assembly 2, one side of the electromagnet 31 is provided with a signal lamp 34, a metal pressing plate 32 is arranged below the electromagnet 31, a signal lamp snap switch 33 electrically connected with the signal lamp 34 is arranged below the metal pressing plate 32, and an input end of the signal lamp snap switch 33 is electrically connected with a storage battery 35, and the specific detection method is as follows:
Step one: firstly, according to the design, the impact discharge control module 1, the battery assembly 2, the battery fault or failure detection unit 3 and the voltage and current detection unit 4 are connected in a circuit mode, after connection, whether the voltage and the current of the battery assembly 2 are in a stable state or not is detected through the voltage and current detection unit 4, the electromagnet 31 is ensured to be electrified and adsorbed on the metal pressing plate 32, and the signal lamp 34 is in a non-bright state;
Step two: the operator carries out an impact discharge test on the battery assembly 2 through the impact discharge control module 1, in the test process, the voltage and current change of the battery assembly 2 is monitored in real time through the voltage and current detection unit 4, and further fault judgment is carried out on the battery assembly 2 through observing the battery fault or the change of the signal lamp 34 on the failure detection unit 3;
Step three: in a normal state, the electromagnet 31 generates magnetism to adsorb the metal pressing plate 32 after being electrified through the battery assembly 2, the metal pressing plate 32 does not generate pressure on the signal lamp spring switch 33, the signal lamp spring switch 33 is in an off state, and the signal lamp 34 is not on;
Step four: when the impact discharge control module 1 performs impact discharge test on the battery assembly 2, three conditions exist, namely, the battery assembly 2 directly fails, at the moment, the electromagnet 31 is powered off and demagnetized, the metal pressing plate 32 falls under the action of gravity to cause pressure on the signal lamp snap switch 33, so that the signal lamp snap switch 33 is closed, the storage battery 35 supplies power to the signal lamp 34, and the signal lamp 34 is on; the second is that the battery assembly 2 still keeps a normal state, at this time, after the electromagnet 31 is electrified, the metal pressing plate 32 is magnetically attracted, the metal pressing plate 32 does not generate pressure on the signal lamp spring switch 33, the signal lamp spring switch 33 is in an off state, and the signal lamp 34 is not on; the third is that the battery assembly 2 is in an unstable state, and the attraction of the electromagnet 31 to the metal pressing plate 32 is unstable, so that the brightness of the signal lamp 34 is weaker.
As shown in fig. 1-2, the voltage and current detection unit 4 adopts a universal meter or other devices with voltage and current detection data, so that the voltage and current detection of the battery assembly 2 can be conveniently performed in the use process.
As shown in fig. 1-2, the battery fault or failure detection unit 3 is a hollow shell member, the electromagnet 31, the metal pressing plate 32, the signal lamp snap switch 33 and the storage battery 35 are all arranged in the hollow shell, the signal lamp 34 is arranged outside the hollow shell, and the input end of the signal lamp 34 is electrically connected with the output end of the signal lamp snap switch 33 through a wire.
As shown in fig. 1-2, a fixing frame is mounted outside the electromagnet 31, the fixing frame is made of insulating plastic material, and the fixing frame is fixedly connected with the inner wall of the hollow shell through screws, so that the electromagnet 31 is conveniently mounted and fixed.
As shown in fig. 1-2, the signal lamp snap switch 33 comprises a socket secured to the bottom of the hollow housing and provided with a spring-type elastic control button for controlling electrical communication between the signal lamp 34 and the battery 35, facilitating effective control of communication between the signal lamp 34 and the battery 35 during use.
As shown in fig. 1-2, the two sides of the hollow shell, which are located at the metal pressing plate 32, are fixedly provided with guide rails for limiting the metal pressing plate 32 in the vertical direction, so that the metal pressing plate 32 is conveniently limited, the metal pressing plate 32 can be kept to be lifted in the vertical direction, and the situation that the follow-up pressure cannot be caused to the elastic button on the signal lamp spring switch 33 due to deviation is avoided.
The working principle of the invention is as follows: when the method is used, firstly, the impact discharge control module 1, the battery assembly 2, the battery fault or failure detection unit 3 and the voltage and current detection unit 4 are connected in a circuit mode according to the design, after the connection, whether the voltage and the current of the battery assembly 2 are in a stable state or not is detected through the voltage and current detection unit 4, the electromagnet 31 is ensured to be electrified to adsorb the metal pressing plate 32, and the signal lamp 34 is in a non-bright state; secondly, an operator performs an impact discharge test on the battery assembly 2 through the impact discharge control module 1, in the test process, the voltage and current change of the battery assembly 2 is monitored in real time through the voltage and current detection unit 4, and further fault judgment is performed on the battery assembly 2 through observing the battery fault or the change of the signal lamp 34 on the failure detection unit 3; in a normal state, the electromagnet 31 generates magnetism to adsorb the metal pressing plate 32 after being electrified through the battery assembly 2, the metal pressing plate 32 does not generate pressure on the signal lamp spring switch 33, the signal lamp spring switch 33 is in an off state, and the signal lamp 34 is not on; when the impact discharge control module 1 performs impact discharge test on the battery assembly 2, three conditions exist, namely, the battery assembly 2 directly fails, at the moment, the electromagnet 31 is powered off and demagnetized, the metal pressing plate 32 falls under the action of gravity to cause pressure on the signal lamp snap switch 33, so that the signal lamp snap switch 33 is closed, the storage battery 35 supplies power to the signal lamp 34, and the signal lamp 34 is on; the second is that the battery assembly 2 still keeps a normal state, at this time, after the electromagnet 31 is electrified, the metal pressing plate 32 is magnetically attracted, the metal pressing plate 32 does not generate pressure on the signal lamp spring switch 33, the signal lamp spring switch 33 is in an off state, and the signal lamp 34 is not on; thirdly, the battery assembly 2 is in an unstable state, and the signal lamp 34 has weaker brightness due to the unstable adsorption of the electromagnet 31 to the metal pressing plate 32; wherein, the voltage and current detection unit 4 adopts a universal meter or other devices with detection voltage and current data; the outside of battery trouble or inefficacy detecting element 3 is a hollow shell component, electro-magnet 31, metal clamp plate 32, signal lamp snap switch 33 and battery 35 all set up in the inside of this hollow shell, signal lamp 34 sets up in the outside of this hollow shell, signal lamp 34's input passes through wire and signal lamp snap switch 33's output electric connection, the externally mounted of electro-magnet 31 has the mount, this mount is insulating plastics material, and pass through screw fixed connection between the inner wall of this mount and hollow shell, signal lamp snap switch 33 is including the socket of fixing in the hollow shell bottom, be provided with spring type elasticity control button on this socket, this button is used for controlling the electrical communication between signal lamp 34 and the battery 35, the inside of hollow shell is located the equal fixed mounting of both sides of metal clamp plate 32 and is used for limiting the guide rail of metal clamp plate 32 in the vertical direction, be convenient for carry out spacingly to metal clamp plate 32, make metal clamp plate 32 can keep the lift in the vertical direction, avoid taking place the skew and cause subsequent unable elastic button to signal lamp snap switch 33 to cause pressure, and then make this technical method can carry out impact test to battery assembly 2 in the use and carry out the time, and detect the battery assembly, and carry out the test assembly, and test method can carry out the safe and test device, the method is simple and practical and convenient to carry out the test operation, the test condition is detected in the test assembly, the result is relatively easy to be carried out.
The last points to be described are: first, in the description of the present application, it should be noted that, unless otherwise specified and defined, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be mechanical or electrical, or may be a direct connection between two elements, and "upper," "lower," "left," "right," etc. are merely used to indicate relative positional relationships, which may be changed when the absolute position of the object being described is changed;
secondly: in the drawings of the disclosed embodiments, only the structures related to the embodiments of the present disclosure are referred to, and other structures can refer to the common design, so that the same embodiment and different embodiments of the present disclosure can be combined with each other under the condition of no conflict;
finally: the foregoing description of the preferred embodiments of the invention is not intended to limit the invention to the precise form disclosed, and any such modifications, equivalents, and alternatives falling within the spirit and principles of the invention are intended to be included within the scope of the invention.
Claims (6)
1. A battery fault or failure detection method based on impact discharge is characterized in that: the battery pack comprises a battery pack (2), wherein an input end of the battery pack (2) is electrically connected with an impact discharge control module (1), an output end of the battery pack (2) is electrically connected with a battery fault or failure detection unit (3), the battery pack (2) is further electrically connected with a voltage and current detection unit (4), the battery fault or failure detection unit (3) comprises an electromagnet (31) electrically connected with the output end of the battery pack (2), one side of the electromagnet (31) is provided with a signal lamp (34), a metal pressing plate (32) is arranged below the electromagnet (31), a signal lamp snap switch (33) electrically connected with the signal lamp (34) is arranged below the metal pressing plate (32), the input end of the signal lamp snap switch (33) is electrically connected with a storage battery (35), and the specific detection method is as follows:
Step one: firstly, according to the design, a circuit connection is carried out on an impact discharge control module (1), a battery assembly (2), a battery fault or failure detection unit (3) and a voltage and current detection unit (4), after the circuit connection, whether the voltage and the current of the battery assembly (2) are in a stable state or not is detected through the voltage and current detection unit (4), and the electromagnet (31) is electrified to adsorb a metal pressing plate (32), so that a signal lamp (34) is in a non-bright state;
Step two: an operator performs an impact discharge test on the battery assembly (2) through the impact discharge control module (1), in the test process, the voltage and current change of the battery assembly (2) is monitored in real time through the voltage and current detection unit (4), and further fault judgment is performed on the battery assembly (2) through observing the battery fault or the change of the signal lamp (34) on the failure detection unit (3);
Step three: under a normal state, the electromagnet (31) generates magnetism to adsorb the metal pressing plate (32) after being electrified through the battery assembly (2), the metal pressing plate (32) does not generate pressure on the signal lamp spring switch (33), the signal lamp spring switch (33) is in an off state, and the signal lamp (34) is not on;
Step four: when the impact discharge control module (1) performs impact discharge test on the battery assembly (2), three conditions exist, the first is that the battery assembly (2) directly fails, at the moment, the electromagnet (31) is powered off and demagnetized, the metal pressing plate (32) falls under the action of gravity to cause pressure on the signal lamp snap switch (33), so that the signal lamp snap switch (33) is closed, the storage battery (35) supplies power to the signal lamp (34), and the signal lamp (34) is lightened; the second is that the battery assembly (2) still keeps a normal state, at the moment, after the electromagnet (31) is electrified, the electromagnet generates magnetism to adsorb the metal pressing plate (32), the metal pressing plate (32) does not generate pressure on the signal lamp spring switch (33), the signal lamp spring switch (33) is in an off state, and the signal lamp (34) is not on; the third is that the battery component (2) is in an unstable state, and the adsorption of the electromagnet (31) to the metal pressing plate (32) is unstable, so that the brightness of the signal lamp (34) is weaker.
2. The method for detecting the failure or the failure of the battery based on the impact discharge according to claim 1, wherein the method comprises the following steps: the voltage and current detection unit (4) adopts a universal meter.
3. The method for detecting the failure or the failure of the battery based on the impact discharge according to claim 1, wherein the method comprises the following steps: the outside of battery trouble or inefficacy detecting element (3) is a hollow shell member, electro-magnet (31), metal clamp plate (32), signal lamp spring switch (33) and battery (35) all set up in the inside of this hollow shell, signal lamp (34) set up in the outside of this hollow shell, the input of signal lamp (34) is through wire and signal lamp spring switch (33) output electric connection.
4. A method of detecting a battery failure or failure based on an impact discharge as claimed in claim 3, wherein: the outside of electro-magnet (31) is installed the mount, and this mount is insulating plastics material, and passes through screw fixed connection between this mount and the inner wall of hollow casing.
5. A method of detecting a battery failure or failure based on an impact discharge as claimed in claim 3, wherein: the signal lamp spring switch (33) comprises a socket fixed at the bottom of the hollow shell, and a spring type elastic control button is arranged on the socket and used for controlling electrical communication between the signal lamp (34) and the storage battery (35).
6. A method of detecting a battery failure or failure based on an impact discharge as claimed in claim 3, wherein: the inside of hollow casing is located both sides of metal clamp plate (32) and all fixed mounting has the guide rail that is used for spacing metal clamp plate (32) in vertical direction.
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Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH07156747A (en) * | 1993-12-07 | 1995-06-20 | Kansei Corp | Occupant crash protection for vehicle |
CN101806828A (en) * | 2010-04-07 | 2010-08-18 | 云南电力试验研究院(集团)有限公司 | Full-range measurement method of impulsive discharge current arranged at hot side |
CN104407272A (en) * | 2014-12-16 | 2015-03-11 | 国家电网公司 | Cable identification device |
WO2017148385A1 (en) * | 2016-03-02 | 2017-09-08 | 深圳市银盾科技开发有限公司 | Smart automobile battery |
CN107422239A (en) * | 2017-09-27 | 2017-12-01 | 重庆大学 | The more dash current discharge test device and methods of soil |
CN108761342A (en) * | 2018-06-04 | 2018-11-06 | 温仕鑫 | A kind of new energy electric motor vehicle storage battery safety test method |
-
2021
- 2021-06-24 CN CN202110701959.8A patent/CN113238155B/en active Active
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH07156747A (en) * | 1993-12-07 | 1995-06-20 | Kansei Corp | Occupant crash protection for vehicle |
CN101806828A (en) * | 2010-04-07 | 2010-08-18 | 云南电力试验研究院(集团)有限公司 | Full-range measurement method of impulsive discharge current arranged at hot side |
CN104407272A (en) * | 2014-12-16 | 2015-03-11 | 国家电网公司 | Cable identification device |
WO2017148385A1 (en) * | 2016-03-02 | 2017-09-08 | 深圳市银盾科技开发有限公司 | Smart automobile battery |
CN107422239A (en) * | 2017-09-27 | 2017-12-01 | 重庆大学 | The more dash current discharge test device and methods of soil |
CN108761342A (en) * | 2018-06-04 | 2018-11-06 | 温仕鑫 | A kind of new energy electric motor vehicle storage battery safety test method |
Non-Patent Citations (1)
Title |
---|
基于瞬时冲击电流的故障分析方法探究;崔照勇;李秉国;;航空维修与工程(第06期);全文 * |
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