CN113238155A - Battery fault or failure detection method based on impulse discharge - Google Patents
Battery fault or failure detection method based on impulse discharge Download PDFInfo
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- CN113238155A CN113238155A CN202110701959.8A CN202110701959A CN113238155A CN 113238155 A CN113238155 A CN 113238155A CN 202110701959 A CN202110701959 A CN 202110701959A CN 113238155 A CN113238155 A CN 113238155A
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- 239000002184 metal Substances 0.000 claims description 51
- 208000032953 Device battery issue Diseases 0.000 claims description 11
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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
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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
- G01R31/12—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 the battery assembly is subjected to an impact discharge test in the using process, can effectively judge the state of the battery assembly after the test, has convenient operation of the method, simple and practical related device components, good safety performance in the test process and visual 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 an insulating medium is broken down under the action of the impulse voltage, natural lightning strikes, impulse voltage and current waves with high amplitude and MHz level will appear at the lightning falling position, in order to research the discharge mechanism of the lightning phenomenon in the nature, the discharge development process and mechanism of various types of insulating structures in the impulse discharge mode are researched, the discharge research of various gap types and arrangement modes needs to be carried out through test equipment simulating the impulse high voltage, and the internal mechanism is tried to be found through transient current, voltage, light, sound, electric field, magnetic field and other multi-directional observation means to capture, observe and explain.
The existing battery fault or failure detection method based on impact discharge is poor in detection mode in actual use, and the state of a battery assembly after a test cannot be judged visually.
Disclosure of Invention
In order to overcome the above defects in the prior art, embodiments of the present invention provide a method for detecting a battery fault or failure based on impulse discharge, which can perform multi-stage detection during an impulse discharge test of a battery assembly during use, can effectively determine the state of the battery assembly after the test, is convenient to operate, and has simple and practical components, good safety performance during the test, and intuitive observation of a detection result, so as to solve the problems in the background art.
In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a battery trouble or inefficacy detection method based on strike discharge, includes battery pack, battery pack's input electric connection has the strike discharge control module, and battery pack's output electric connection has battery trouble or inefficacy detecting element, battery pack's outside still electric connection has voltage current detecting element, battery trouble or inefficacy detecting element include with battery pack's output electric connection's electro-magnet, one side of electro-magnet is provided with the signal lamp, and the below of electro-magnet is provided with the metal pressing plate, the below of metal pressing plate is provided with the signal lamp suppress switch with signal lamp electric connection, the input electric connection of signal lamp suppress switch has the battery, and concrete detection method is as follows:
the method comprises the following steps: firstly, according to the design, an impact discharge control module, a battery assembly, a battery fault or failure detection unit and a voltage and current detection unit are in circuit connection, and after the connection, the voltage and current detection unit is used for detecting whether the voltage and the current of the battery assembly are in a stable state, and ensuring that an electromagnet is electrified to adsorb 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 the battery assembly is further subjected to fault judgment by observing the change of a signal lamp on the battery fault or 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 disconnected state, and the signal lamp is not lighted;
step four: when the impact discharge control module performs an impact discharge test on the battery assembly, three conditions exist, the first condition is that the battery assembly fails directly, 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 spring switch, and the signal lamp spring switch is closed, so that 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, the electromagnet generates magnetism to adsorb the metal pressing plate after being electrified, the metal pressing plate does not generate pressure on the signal lamp spring switch, the signal lamp spring switch is in a disconnected state, and the signal lamp is not lighted; the third is that the battery pack is in an unstable state, and the electromagnet is unstable in adsorption to the metal pressing plate, so that the brightness of the signal lamp is weak.
In a preferred embodiment, the voltage and current detection unit is a universal meter or other device with a function of detecting voltage and current data.
In a preferred embodiment, the battery failure or invalidation detecting unit is a hollow shell member outside, the electromagnet, the metal pressing plate, the signal lamp spring switch and the storage battery are all arranged inside 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 spring switch through a lead.
In a preferred embodiment, a fixing frame is mounted on the exterior of 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 spring 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 is used for controlling the electrical communication between the signal lamp and the storage battery.
In a preferred embodiment, the inside of the hollow shell is fixedly provided with guide rails for vertically limiting the metal pressure plate on both sides of the metal pressure plate.
The invention has the beneficial effects that:
the invention designs a battery fault or failure detection method based on impact discharge, wherein when the method is used, the voltage and current change of a battery assembly is monitored in real time through a voltage and current detection unit, and the battery assembly is further subjected to fault judgment by observing the change of a signal lamp on the battery fault or failure detection unit, so that the technical method can be used for carrying out multistage detection during impact discharge test on the battery assembly in the using process, can be used for effectively judging the state of the tested battery assembly, is convenient to operate, and has the advantages of simple and practical related device components, good safety performance in the test process and visual observation of a detection result.
Drawings
Fig. 1 is a schematic diagram of the present invention.
Fig. 2 is a detection schematic diagram of a battery failure or invalidation detecting unit according to the present invention.
The reference signs are: 1. an impact discharge control module; 2. a battery assembly; 3. a battery failure or invalidation detecting unit; 4. a voltage current detection unit; 31. an electromagnet; 32. a metal platen; 33. the signal lamp presses the switch; 34. a signal lamp; 35. and (4) a storage battery.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
As shown in fig. 1-2, a method for detecting battery failure or failure based on impulse discharge includes a battery assembly 2, an input end of the battery assembly 2 is electrically connected to an impulse discharge control module 1, an output end of the battery assembly 2 is electrically connected to a battery failure or failure detection unit 3, an outside of the battery assembly 2 is also electrically connected to a voltage and current detection unit 4, the battery failure or failure detection unit 3 includes an electromagnet 31 electrically connected to an 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 suppressing switch 33 electrically connected to the signal lamp 34 is arranged below the metal pressing plate 32, an input end of the signal lamp suppressing switch 33 is electrically connected to a storage battery 35, and the specific detection method includes:
the method comprises the following steps: firstly, according to the design, the impact discharge control module 1, the battery assembly 2, the battery failure or invalidation detection unit 3 and the voltage and current detection unit 4 are in circuit connection, after the circuit connection, the voltage and current detection unit 4 is used for detecting whether the voltage and current of the battery assembly 2 are in a stable state, the electromagnet 31 is ensured to be electrified and adsorb the metal pressing plate 32, and the 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 the battery assembly 2 is further subjected to fault judgment by observing the change of a signal lamp 34 on the battery fault or failure detection unit 3;
step three: in a normal state, the electromagnet 31 generates magnetic attraction to the metal pressing plate 32 after the battery assembly 2 is electrified, the metal pressing plate 32 does not generate pressure on the signal lamp spring switch 33, the signal lamp spring switch 33 is in a disconnected state, and the signal lamp 34 is not lighted;
step four: after the impact discharge control module 1 performs an impact discharge test on the battery assembly 2, three conditions exist, the first is that the battery assembly 2 fails directly, 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 spring switch 33, so that the signal lamp spring switch 33 is closed, the storage battery 35 supplies power to the signal lamp 34, and the signal lamp 34 is lighted; the second is that the battery assembly 2 still keeps a normal state, at this time, the electromagnet 31 generates magnetism to adsorb the metal pressing plate 32 after being electrified, the metal pressing plate 32 does not generate pressure on the signal lamp spring switch 33, the signal lamp spring switch 33 is in a disconnected state, and the signal lamp 34 is not lighted; the third is that the battery assembly 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 weak.
As shown in fig. 1-2, the voltage/current detection unit 4 employs a universal meter or other device capable of detecting voltage/current data, so as to facilitate voltage/current detection of the battery assembly 2 during use.
As shown in fig. 1-2, the exterior of the battery failure or invalid detection unit 3 is a hollow shell member, the electromagnet 31, the metal pressing plate 32, the signal lamp pressing switch 33 and the storage battery 35 are all disposed inside the hollow shell, the signal lamp 34 is disposed outside the hollow shell, and the input end of the signal lamp 34 is electrically connected with the output end of the signal lamp pressing switch 33 through a conducting wire.
As shown in fig. 1-2, a fixing frame is mounted outside the electromagnet 31, the fixing frame is made of insulating plastic, and the fixing frame is fixedly connected with the inner wall of the hollow shell through screws, so that the electromagnet 31 can be conveniently mounted and fixed.
As shown in fig. 1-2, the signal lamp spring switch 33 includes a socket fixed at the bottom of the hollow housing, and a spring-loaded elastic control button is disposed on the socket for controlling the electrical communication between the signal lamp 34 and the battery 35, so as to effectively control the communication between the signal lamp 34 and the battery 35 during the use process.
As shown in fig. 1-2, the two sides of the hollow shell, which are located on 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 can be conveniently limited, the metal pressing plate 32 can keep lifting in the vertical direction, and pressure caused by subsequent incapability of pressing an 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, 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 are in circuit connection according to the design, after the circuit connection, the voltage and current detection unit 4 is used for detecting whether the voltage and current of the battery assembly 2 are in a stable state, an electromagnet 31 is ensured to be electrified to adsorb a metal pressing plate 32, and a 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, monitors the voltage and current change of the battery assembly 2 in real time through the voltage and current detection unit 4 in the test process, and further judges the fault of the battery assembly 2 by observing the change of a signal lamp 34 on the battery fault or failure detection unit 3; in a normal state, the electromagnet 31 generates magnetic attraction to the metal pressing plate 32 after the battery assembly 2 is electrified, the metal pressing plate 32 does not generate pressure on the signal lamp spring switch 33, the signal lamp spring switch 33 is in a disconnected state, and the signal lamp 34 is not lighted; after the impact discharge control module 1 performs an impact discharge test on the battery assembly 2, three conditions exist, the first is that the battery assembly 2 fails directly, 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 spring switch 33, so that the signal lamp spring switch 33 is closed, the storage battery 35 supplies power to the signal lamp 34, and the signal lamp 34 is lighted; the second is that the battery assembly 2 still keeps a normal state, at this time, the electromagnet 31 generates magnetism to adsorb the metal pressing plate 32 after being electrified, the metal pressing plate 32 does not generate pressure on the signal lamp spring switch 33, the signal lamp spring switch 33 is in a disconnected state, and the signal lamp 34 is not lighted; the third is that the battery assembly 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 weak; wherein, the voltage and current detection unit 4 adopts a universal meter or other devices with the function of detecting voltage and current data; the exterior of the battery failure or invalidation detecting unit 3 is a hollow shell component, the electromagnet 31, the metal pressing plate 32, the signal lamp spring switch 33 and the storage battery 35 are all arranged inside the hollow shell, the signal lamp 34 is arranged outside the hollow shell, the input end of the signal lamp 34 is electrically connected with the output end of the signal lamp spring switch 33 through a lead, the exterior of the electromagnet 31 is provided with a fixed frame which is made of insulating plastic material, the fixed frame is fixedly connected with the inner wall of the hollow shell through a screw, the signal lamp spring switch 33 comprises a socket fixed at the bottom of the hollow shell, the socket is provided with a spring type elastic control button, the button is used for controlling the electrical communication between the signal lamp 34 and the storage battery 35, and guide rails used for limiting the metal pressing plate 32 in the vertical direction are fixedly arranged on two sides of the metal pressing plate 32 inside the hollow shell, be convenient for carry on spacingly to metal pressing plate 32, make metal pressing plate 32 can keep the ascending and descending in vertical side, avoid taking place the skew to cause follow-up unable elastic button to on signal lamp suppression switch 33 to cause pressure, and then make this technical method carry out multistage detection when carrying out the impulse discharge test to battery pack 2 in the use, and can effectively judge the state of experimental back battery pack 2, method convenient operation, the device component that relates to is also comparatively simple and practical, the security performance is good in the test process, the observation of testing result is comparatively directly perceived.
The points to be finally explained are: first, in the description of the present application, it should be noted that, unless otherwise specified and limited, the terms "mounted," "connected," and "connected" should be understood broadly, and may be a mechanical connection or an electrical connection, or a communication between two elements, and may be a direct connection, and "upper," "lower," "left," and "right" are only used to indicate a relative positional relationship, and when the absolute position of the object to be described is changed, the relative positional relationship may be changed;
secondly, the method comprises the following steps: in the drawings of the disclosed embodiments of the invention, only the structures related to the disclosed embodiments are referred to, other structures can refer to common designs, and the same embodiment and different embodiments of the invention can be combined with each other without conflict;
and finally: the above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that are within the spirit and principle of the present invention are intended to be included in the scope of the present invention.
Claims (6)
1. A battery fault or failure detection method based on impulse discharge is characterized in that: comprises a battery component (2), the input end of the battery component (2) is electrically connected with an impact discharge control module (1), and the output end of the battery component (2) is electrically connected with a battery failure or invalidation detection unit (3), the outside of the battery component (2) is also electrically connected with a voltage and current detection unit (4), the battery failure or invalidation detection unit (3) comprises an electromagnet (31) electrically connected with the output end of the battery component (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 spring switch (33) electrically connected with a signal lamp (34) is arranged below the metal pressing plate (32), the input end of the signal lamp spring-pressing switch (33) is electrically connected with a storage battery (35), and the specific detection method comprises the following steps:
the method comprises the following steps: firstly, according to the design, 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) are in circuit connection, after the circuit connection, the voltage and current detection unit (4) is used for detecting whether the voltage and current of the battery assembly (2) are in a stable state, an electromagnet (31) is ensured to be electrified to adsorb a metal pressing plate (32), and a signal lamp (34) is in a non-bright state;
step two: an 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 the battery assembly (2) is further subjected to fault judgment by observing the change of a signal lamp (34) on the battery fault or failure detection unit (3);
step three: under a normal state, the electromagnet (31) generates magnetic adsorption to 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 a disconnected state, and the signal lamp (34) is not lighted;
step four: after the impact discharge control module (1) performs an impact discharge test on the battery assembly (2), three conditions exist, the first condition is that the battery assembly (2) fails directly, 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 spring switch (33), so that the signal lamp spring switch (33) is closed, the storage battery (35) supplies power to the signal lamp (34), and the signal lamp (34) is lighted; the second one is that the battery component (2) still keeps a normal state, at the moment, the electromagnet (31) generates magnetic adsorption to the metal pressing plate (32) after being electrified, the metal pressing plate (32) does not generate pressure on the signal lamp spring switch (33), the signal lamp spring switch (33) is in a disconnected state, and the signal lamp (34) is not lighted; and the third is that the battery assembly (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 weak.
2. The impulse discharge-based battery fault or failure detection method of claim 1, wherein: the voltage and current detection unit (4) adopts a universal meter or other devices with voltage and current data detection functions.
3. The impulse discharge-based battery fault or failure detection method of claim 1, wherein: the outside of battery trouble or failure detection unit (3) is a hollow shell component, electro-magnet (31), metal pressing plate (32), signal lamp suppressing 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) passes through the wire and signal lamp suppressing switch (33) output electric connection.
4. A method of impulse discharge based battery fault or failure detection as claimed in claim 3, characterized in that: the external mounting of electro-magnet (31) has the mount, and this mount is insulating plastics material, and passes through screw fixed connection between the inner wall of this mount and hollow shell.
5. A method of impulse discharge based battery fault or failure detection as claimed in claim 3, characterized in that: the signal lamp spring switch (33) comprises a socket fixed at the bottom of the hollow shell, a spring type elastic control button is arranged on the socket, and the button is used for controlling the electrical communication between the signal lamp (34) and the storage battery (35).
6. A method of impulse discharge based battery fault or failure detection as claimed in claim 3, characterized in that: and guide rails for limiting the metal pressing plate (32) in the vertical direction are fixedly arranged on two sides of the metal pressing plate (32) in the hollow shell.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110701959.8A CN113238155B (en) | 2021-06-24 | 2021-06-24 | Battery fault or failure detection method based on impact discharge |
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| CN202110701959.8A CN113238155B (en) | 2021-06-24 | 2021-06-24 | Battery fault or failure detection method based on impact discharge |
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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 |
|---|
| 崔照勇;李秉国;: "基于瞬时冲击电流的故障分析方法探究", 航空维修与工程, no. 06 * |
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