CN117134012A - Fault self-detection lithium battery - Google Patents

Fault self-detection lithium battery Download PDF

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Publication number
CN117134012A
CN117134012A CN202311395223.8A CN202311395223A CN117134012A CN 117134012 A CN117134012 A CN 117134012A CN 202311395223 A CN202311395223 A CN 202311395223A CN 117134012 A CN117134012 A CN 117134012A
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China
Prior art keywords
detection
alarm
fixedly arranged
changing
lithium battery
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Granted
Application number
CN202311395223.8A
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Chinese (zh)
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CN117134012B (en
Inventor
崔永青
蔡洪波
杨涛
冀天喜
冯国恩
赵利涛
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Henan Lithium Power Source Co Ltd
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Henan Lithium Power Source Co Ltd
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Priority to CN202311395223.8A priority Critical patent/CN117134012B/en
Publication of CN117134012A publication Critical patent/CN117134012A/en
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    • GPHYSICS
    • G01MEASURING; TESTING
    • G01RMEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • G01R31/36Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC]
    • G01R31/385Arrangements for measuring battery or accumulator variables
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01MTESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M3/00Investigating fluid-tightness of structures
    • G01M3/02Investigating fluid-tightness of structures by using fluid or vacuum
    • G01M3/04Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01RMEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • G01R31/36Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC]
    • G01R31/389Measuring internal impedance, internal conductance or related variables
    • GPHYSICS
    • G08SIGNALLING
    • G08BSIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B21/00Alarms responsive to a single specified undesired or abnormal condition and not otherwise provided for
    • G08B21/18Status alarms
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00Secondary cells; Manufacture thereof
    • H01M10/42Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
    • H01M10/48Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00Secondary cells; Manufacture thereof
    • H01M10/42Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
    • H01M10/48Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte
    • H01M10/488Cells or batteries combined with indicating means for external visualization of the condition, e.g. by change of colour or of light density
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/50Current conducting connections for cells or batteries
    • H01M50/572Means for preventing undesired use or discharge
    • H01M50/574Devices or arrangements for the interruption of current
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10Energy storage using batteries

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Secondary Cells (AREA)
  • Battery Mounting, Suspending (AREA)

Abstract

The invention discloses a fault self-detection lithium battery, which relates to the technical field of lithium battery detection and comprises a waterproof temperature measurement shell, a leakage disconnection module, an automatic alarm module, a path-changing detection module and a lithium battery main body. The circuit switching detection module realizes the switching of a detection circuit through the sliding of the circuit switching switch assembly, converts a current value into a pressure value signal through the electromagnetic counting assembly, and transmits the value to the numerical control panel through the calculation of the detection chip so as to realize the detection functions of voltage, current and internal resistance. The leakage disconnection module transmits an electric signal to the electric telescopic plug pin assembly after detecting liquid through the leakage detection sensing plate, so that the electric telescopic plug pin assembly is retracted, and the separated-wire conductive column is popped out to be disconnected, thereby realizing the leakage detection disconnection function of the lithium battery main body. And the automatic alarm module drives the lock bolt to rotate through the alarm motor, so that the alarm sliding switch assembly is closed after being separated from the lock bolt, and the fault alarm function is realized.

Description

Fault self-detection lithium battery
Technical Field
The invention relates to the technical field of lithium battery detection, in particular to a fault self-detection lithium battery.
Background
Along with the popularization and application of the lithium battery in various fields, the lithium battery becomes an indispensable part of life of people, so that manufacturers for producing the lithium battery are countless, but various differences exist in the lithium battery production process of each manufacturer, and great differences exist in service life and quality among the lithium batteries, so that accidents caused by the faults of the lithium batteries are frequent; therefore, in order to avoid unnecessary faults of the lithium battery and prolong the service life of the lithium battery, periodic fault detection of the lithium battery becomes particularly important; the traditional lithium battery cannot detect the parameters such as the voltage, the current and the internal resistance of the lithium battery, so that the lithium battery is required to be disassembled from a battery pack under the existing lithium battery detection technology, and the lithium battery is placed in a detection machine for detection. Therefore, there is a need for a fault self-detecting lithium battery that can detect the battery in real time, without disassembling the battery, in a time-saving and labor-saving manner, and can break and alert itself, so as to solve the problem that the conventional lithium battery cannot cope with.
As disclosed in the patent publication No. CN107195987B, an automatic detection battery pack is provided, the device comprises a battery and a control chip, the battery can detect the internal temperature of the battery to realize a temperature detection function, the battery can realize the on-off function of the battery through the lifting of the lifting mechanism, and the control chip is used for controlling the lifting of the lifting mechanism. The battery pack has the advantages of simple structure, convenient use and good use safety. However, the scheme has no voltage, current and internal resistance detection device of the battery, can only detect the temperature of the battery, and cannot determine other numerical conditions inside the battery; the solution cannot detect the leakage of the battery, if the leakage occurs, other batteries in the battery pack may be scrapped due to short circuit; meanwhile, the scheme can not carry out warning and early warning when the battery fails, and can not prompt the staff of battery failure.
Disclosure of Invention
The invention aims to provide a fault self-detection lithium battery, which aims to solve the technical problems in the prior art such as how to realize the voltage, current and internal resistance detection of the battery, how to detect leakage of the lithium battery, how to realize the fault disconnection of the lithium battery, how to realize the fault alarm of the lithium battery and the like.
Aiming at the technical problems, the invention adopts the following technical scheme: a fault self-detection lithium battery comprises a waterproof temperature measurement shell, a leakage disconnection module, an automatic alarm module, a path change detection module and a lithium battery main body; the lithium battery body is fixedly provided with a waterproof temperature measurement shell, a liquid leakage disconnection module and a circuit switching detection module, after the liquid leakage disconnection module detects liquid through a liquid leakage detection sensing plate, an electric signal is transmitted to an electric telescopic plug pin assembly, so that the electric telescopic plug pin assembly is retracted, a branching conductive column is popped out of the disconnection, the circuit switching detection module is used for detecting the liquid leakage of the lithium battery body and disconnecting the lithium battery body, the circuit switching detection module is used for detecting the switching of a circuit through the sliding of a circuit switching switch assembly, then an electromagnetic digital measurement assembly is used for converting a current value into a pressure value electric signal, and then all values are transmitted to a numerical control panel through the calculation of a detection chip to be used for detecting voltage, current and internal resistance; still fixed mounting has automatic alarm module on the waterproof temperature measurement shell, waterproof temperature measurement shell is used for the temperature measurement to lithium cell main part through the temperature measurement subassembly, automatic alarm module passes through alarm motor drive dead bolt and rotates for the alarm sliding switch subassembly is closed that rebounds after breaking away from the dead bolt, is used for the fault alarm of lithium cell main part.
Further, the circuit switching detection module comprises a circuit switching detection mounting frame, a numerical control panel, a detection chip, a circuit switching switch assembly, a first resistor, an electromagnetic counting assembly, a second resistor, a third resistor and a detection power supply; the numerical control panel is fixedly arranged on the road changing detection mounting frame; the detection chip is fixedly arranged on the lane change detection mounting frame, and is connected with the numerical control panel in series through a wire; the electromagnetic counting assembly is fixedly arranged on the road changing detection mounting frame, and is connected with the detection chip in series through a wire; the second resistor is fixedly arranged on the circuit switching detection mounting frame, and is connected with the electromagnetic counting assembly in series through a lead, and the resistance value of the second resistor is 2000 omega and is used for improving the internal resistance of the voltage detection circuit; the third resistor is fixedly arranged on the circuit switching detection mounting frame, and is connected with the electromagnetic counting assembly in parallel through a lead, and the resistance value of the third resistor is 50Ω and is used for increasing the range of the current detection circuit; the detection power supply is fixedly arranged on the road changing detection mounting frame, and is connected in series with the electromagnetic counting assembly through a lead; the first resistor is fixedly arranged on the circuit switching detection mounting frame, and is connected with the electromagnetic counting assembly in series through a lead, and the first resistor is used for preventing the internal resistance detection circuit from being burnt due to overlarge current; the switch component is slidably arranged on the switch detection mounting frame and used for switching among the voltage, current and internal resistance detection circuits.
Further, the channel changing switch assembly comprises a channel changing conductive joint, a channel changing insulating sliding block, a channel changing sliding plate, a channel changing pull ring, a channel changing crank, a channel changing conductive spring and a conductive fixing block; the channel-changing conductive connector is fixedly arranged on the channel-changing slide plate and is also slidably arranged on the channel-changing insulating slide block; the road changing slide plate is arranged on the road changing insulating slide block in a sliding way; two ends of the channel-changing conductive spring are respectively and fixedly arranged on the channel-changing conductive joint and the conductive fixed block; the conductive fixed block is fixedly arranged on the path-changing insulating sliding block; the channel changing pull ring is hinged on the channel changing insulating slide block; the road changing crank is fixedly arranged on the road changing pull ring, and simultaneously, the road changing crank is also slidably arranged on the road changing slide plate.
Further, the electromagnetic counting assembly comprises a piezoelectric sensor, a pressure spring, a pressure magnet, a pressure electromagnet, a pressure coil and a pressure insulating cover; the pressure coil is wound on the pressure electromagnet; the pressure electromagnet is fixedly arranged on the pressure insulating cover; the pressure magnet is slidably arranged on the pressure insulating cover; the two ends of the pressure spring are respectively fixedly arranged on the piezoelectric sensor and the pressure magnet; the piezoelectric sensor is fixedly arranged on the pressure insulating cover.
Further, the leakage disconnection module comprises a disconnection support, an electric telescopic bolt assembly, a disconnection spring, a branching conductive column, a disconnection mounting frame and a leakage detection sensing plate; the disconnection support is fixedly arranged on the disconnection mounting frame; the electric telescopic bolt component is fixedly arranged on the disconnection support, and is connected in series with the liquid leakage detection sensing plate through a lead; the two ends of the disconnection spring are respectively fixedly arranged on the disconnection support and the branching conductive column; the separated time conducting post is slidably arranged on the disconnection support, and is connected with the liquid leakage detection sensing plate in series through a lead; the weeping detects sensing board fixed mounting and connects the mounting bracket on the disconnection.
Further, the electric telescopic bolt component comprises an electric push rod, a bolt connecting column and a bolt inserting plate; the two ends of the bolt connecting column are respectively fixedly arranged on the electric push rod and the bolt plugboard; the bolt plugboard is used for inserting and fixing the branching conductive column.
Further, the automatic alarm module comprises a fixed lock catch, a waterproof wiring board, an alarm power supply, an alarm indicator lamp, an alarm spring, an alarm sliding switch assembly, a locking bolt and an alarm motor; the fixed lock catch is fixedly arranged on the waterproof wiring board; the alarm power supply is fixedly arranged on the waterproof wiring board; the alarm indicator lamp is fixedly arranged on the waterproof wiring board; both ends of the alarm spring are respectively fixedly arranged on the waterproof wiring board and the alarm sliding switch component; the alarm sliding switch component is slidably arranged on the waterproof wiring board; the locking bolt is hinged on the alarm motor; the alarm motor is fixedly arranged on the waterproof wiring board.
Further, the alarm sliding switch assembly comprises an alarm insulating sliding block, an alarm conductive joint, a conductive connecting wire and a fixed slot; the alarm conductive joints are fixedly arranged at two ends of the conductive connecting wire; the conductive connecting wire is fixedly arranged on the alarm insulating sliding block; the alarm insulating sliding block is provided with a fixed slot.
Further, the waterproof temperature measuring shell comprises a waterproof shell body, a fixed locking piece and a temperature measuring assembly; the fixed locking block is fixedly arranged on the waterproof shell; the waterproof shell is made of waterproof materials and is used for waterproofing; the temperature measuring component is fixedly arranged on the waterproof shell.
Further, the temperature measuring component comprises a heat conducting patch, a heat conducting copper column, a temperature measuring meter and a transparent heat preservation cylinder; the heat conduction copper column is fixedly arranged on the heat conduction patch; the transparent heat preservation cylinder is fixedly arranged on the heat conduction copper column; the thermometer is fixedly arranged on the transparent heat preservation cylinder, and meanwhile, the thermometer is fixedly arranged on the heat conduction copper column.
Compared with the prior art, the invention has the beneficial effects that: (1) The circuit switching detection module realizes the switching of a detection circuit through the sliding of the circuit switching switch assembly, converts current values into pressure value electric signals through the electromagnetic counting assembly, and transmits various values to the numerical control panel through the calculation of the detection chip so as to realize the detection functions of voltage, current and internal resistance. (2) The leakage disconnection module transmits an electric signal to the electric telescopic plug pin assembly after detecting liquid through the leakage detection sensing plate, so that the electric telescopic plug pin assembly is retracted, and the separated-wire conductive column is popped out to be disconnected, thereby realizing the leakage detection disconnection function of the lithium battery main body. (3) And the automatic alarm module drives the dead bolt to rotate through the alarm motor, so that the alarm sliding switch assembly is closed after being separated from the dead bolt in a rebound manner, and the fault alarm function is realized.
Drawings
Fig. 1 is a schematic diagram of a general assembly structure of an operating state according to an embodiment of the present invention.
Fig. 2 is a schematic diagram of a final assembly structure of an operating state according to an embodiment of the present invention.
FIG. 3 is a schematic structural view of the waterproof temperature measuring housing of the present invention.
FIG. 4 is a schematic diagram of a temperature measuring assembly according to the present invention.
Fig. 5 is a schematic structural diagram of the leakage break-in module according to the present invention.
Fig. 6 is a schematic view of the structure of the electric telescopic plug pin assembly of the present invention.
Fig. 7 is a schematic structural view of the automatic alarm module of the present invention.
Fig. 8 is a schematic structural view of the alarm sliding switch assembly of the present invention.
Fig. 9 is a schematic structural diagram of a switch detection module according to the present invention.
Fig. 10 is a schematic structural view of the change-over switch assembly of the present invention.
FIG. 11 is a schematic structural diagram of an electromagnetic counting assembly according to the present invention.
In the figure: 1-a waterproof temperature measurement shell; 2-liquid leakage disconnection module; 3-an automatic alarm module; 4-a path-changing detection module; a 5-lithium battery body; 101-a waterproof housing; 102-fixing the locking block; 103-a temperature measuring component; 10301-a thermally conductive patch; 10302-thermally conductive copper pillars; 10303-thermometer; 10304-transparent insulating cylinder; 201-disconnecting the support; 202-an electric telescopic plug assembly; 203-disconnecting the spring; 204-branching conductive columns; 205-disconnecting the mounting frame; 206, a liquid leakage detection sensing plate; 20201-electric putter; 20202-latch posts; 20203-plug board; 301-fixing a lock catch; 302-waterproof patch panel; 303-an alarm power supply; 304-an alarm indicator light; 305-alarm spring; 306-an alarm slide switch assembly; 307-deadbolt; 308-an alert motor; 30401-alarm insulating slider; 30602-an alert conductive tab; 30303-conductive connection lines; 30104-a fixed slot; 401-a road change detection mounting frame; 402-a numerical control panel; 403-a detection chip; 404-a change-over switch assembly; 405-a first resistor; 406-an electromagnetic counting assembly; 407-a second resistor; 408-a third resistor; 409-detecting the power supply; 40401-a switch conductive contact; 40402-a switch insulating slider; 40403-a lane change slide; 40404-change tab; 40405-change crank; 40406—a commutation conductive spring; 40407-conductive fixed blocks; 40601-piezoelectric sensors; 40602-pressure springs; 40603-pressure magnet; 40604-pressure electromagnet; 40605-pressure coil; 40606-pressure insulation cover.
Detailed Description
The technical scheme of the invention is further described below by the specific embodiments with reference to the accompanying drawings.
Wherein the drawings are for illustrative purposes only and are shown in schematic, non-physical, and not intended to be limiting of the present patent; for the purpose of better illustrating embodiments of the invention, certain elements of the drawings may be omitted, enlarged or reduced and do not represent the size of the actual product; it will be appreciated by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted.
Fig. 1 to 11 are preferred embodiments of the present invention.
As shown in fig. 1 and 2, a waterproof temperature measurement housing 1, a liquid leakage disconnection module 2 and a circuit switching detection module 4 are fixedly installed on a lithium battery main body 5, after the liquid leakage disconnection module 2 detects liquid through a liquid leakage detection sensing plate 206, an electric signal is transmitted to an electric telescopic plug pin assembly 202, so that the electric telescopic plug pin assembly 202 is retracted, a branching conductive column 204 is popped up to be disconnected for liquid leakage detection and disconnection of the lithium battery main body 5, the circuit switching detection module 4 is used for switching a detection circuit through sliding of a circuit switching switch assembly 404, then an electromagnetic metering assembly 406 converts a current value into a pressure value electric signal, and then all values are transmitted to a numerical control panel 402 through calculation of a detection chip 403 for detection of voltage, current and internal resistance; the waterproof temperature measurement shell 1 is further fixedly provided with an automatic alarm module 3, the waterproof temperature measurement shell 1 is used for measuring the temperature of the lithium battery main body 5 through the temperature measurement assembly 103, the automatic alarm module 3 drives the locking bolt 307 to rotate through the alarm motor 308, and the alarm sliding switch assembly 306 is closed after being separated from the locking bolt 307 in a rebound mode so as to be used for fault alarm of the lithium battery main body 5.
As shown in fig. 3, in the waterproof temperature measurement housing 1, a fixed lock piece 102 is fixedly mounted on a waterproof case 101; the waterproof shell 101 is made of waterproof materials and is used for waterproofing; the temperature measuring assembly 103 is fixedly mounted on the waterproof housing 101.
As shown in fig. 4, in the temperature measuring assembly 103, a thermally conductive copper pillar 10302 is fixedly mounted on a thermally conductive patch 10301; the transparent heat preservation cylinder 10304 is fixedly arranged on the heat conduction copper column 10302; the thermometer 10303 is fixedly installed on the transparent thermal insulation cylinder 10304, and meanwhile, the thermometer 10303 is fixedly installed on the heat conduction copper column 10302.
As shown in fig. 5, in the leakage break-in module 2, the break-in support 201 is fixedly mounted on the break-in mounting frame 205; the electric telescopic plug pin assembly 202 is fixedly arranged on the disconnection support 201, and meanwhile, the electric telescopic plug pin assembly 202 is also connected with the liquid leakage detection sensing plate 206 in series through a wire; two ends of the disconnection spring 203 are respectively fixedly arranged on the disconnection support 201 and the branching conductive column 204; the separated time conducting column 204 is slidably arranged on the disconnected support 201, and meanwhile, the separated time conducting column 204 is connected in series with the leakage detection sensing plate 206 through a wire; the leak detection sensor plate 206 is fixedly mounted on the disconnection mounting frame 205.
As shown in fig. 6, in the electric telescopic plug assembly 202, both ends of a plug connection post 20202 are fixedly mounted on an electric push rod 20201 and a plug insertion plate 20203, respectively; the plug board 20203 is used to insert and fix the branch conductive posts 204.
As shown in fig. 7, in the automatic alarm module 3, a fixed latch 301 is fixedly installed on a waterproof wiring board 302; the alarm power supply 303 is fixedly installed on the waterproof wiring board 302; alarm indicator light 304 is fixedly mounted on waterproof wiring board 302; both ends of the alarm spring 305 are fixedly installed on the waterproof wiring board 302 and the alarm sliding switch assembly 306, respectively; an alarm slide switch assembly 306 is slidably mounted on the waterproof patch panel 302; the deadbolt 307 is hinged to the alarm motor 308; the alert motor 308 is fixedly mounted to the waterproof wiring board 302.
As shown in fig. 8, in alarm slide switch assembly 306, alarm conductive tabs 30602 are fixedly mounted on both ends of conductive connection lines 30303; conductive connection line 30303 is fixedly mounted on alarm insulating slider 30401; the alarm insulating slider 30601 is provided with a fixed slot 30604.
As shown in fig. 9, in the lane change detection module 4, a numerical control panel 402 is fixedly mounted on a lane change detection mounting frame 401; the detection chip 403 is fixedly arranged on the lane change detection mounting frame 401, and meanwhile, the detection chip 403 is connected with the numerical control panel 402 in series through a wire; the electromagnetic counting assembly 406 is fixedly arranged on the road changing detection mounting frame 401, and meanwhile, the electromagnetic counting assembly 406 is connected with the detection chip 403 in series through a wire; the second resistor 407 is fixedly arranged on the circuit switching detection mounting frame 401, meanwhile, the second resistor 407 is connected with the electromagnetic counting assembly 406 in series through a wire, and the resistance value of the second resistor 407 is 2000 omega and is used for improving the internal resistance of the voltage detection circuit; the third resistor 408 is fixedly arranged on the circuit switching detection mounting frame 401, meanwhile, the third resistor 408 is connected with the electromagnetic counting assembly 406 in parallel through a wire, and the resistance value of the third resistor 408 is 50Ω, which is used for increasing the range of the current detection circuit; the detection power supply 409 is fixedly arranged on the circuit switching detection mounting frame 401, and meanwhile, the detection power supply 409 is connected with the electromagnetic counting assembly 406 in series through a wire; the first resistor 405 is fixedly installed on the circuit switching detection installation frame 401, meanwhile, the first resistor 405 is connected in series with the electromagnetic counting assembly 406 through a wire, and the first resistor 405 is used for preventing the internal resistance detection circuit from being burnt out due to overlarge current; the switch assembly 404 is slidably mounted on the switch detection mounting frame 401 for switching between voltage, current and internal resistance detection circuits.
As shown in fig. 10, in the change-over switch assembly 404, a change-over conductive contact 40401 is fixedly mounted on a change-over slide 40403, and at the same time, the change-over conductive contact 40401 is also slidably mounted on a change-over insulating slider 40402; a channel changing slide plate 40403 is slidably mounted on the channel changing insulating slide block 40402; two ends of the commutation conductive spring 40406 are respectively and fixedly arranged on the commutation conductive connector 40401 and the conductive fixed block 40407; the conductive fixed block 40407 is fixedly arranged on the channel changing insulating sliding block 40402; the channel changing pull ring 40404 is hinged on the channel changing insulating slide block 40402; the road changing crank 40405 is fixedly mounted on the road changing pull ring 40404, and the road changing crank 40405 is also slidably mounted on the road changing slide plate 40403.
As shown in fig. 11, in the electromagnetic counting assembly 406, a pressure coil 40605 is wound around a pressure electromagnet 40604; the pressure electromagnet 40604 is fixedly arranged on the pressure insulating cover 40606; the pressure magnet 40603 is slidably mounted on the pressure insulating cover 40606; both ends of the pressure spring 40602 are fixedly arranged on the piezoelectric sensor 40601 and the pressure magnet 40603 respectively; piezoelectric transducer 40601 is fixedly mounted to pressure insulating cap 40606.
The working principle of the invention is as follows: fig. 1 and fig. 2 show a usage mode and a corresponding scene of the invention, and the gesture control of the fault self-detection lithium battery detection process is determined by a leakage disconnection module 2, an automatic alarm module 3 and a path change detection module 4, the gesture of the leakage disconnection module 2 is determined by the path change detection module 4, the gesture of the automatic alarm module 3 is determined by the path change detection module 4, and the path change detection module 4 is the core of the fault self-detection lithium battery.
Taking an example of the first embodiment, when the battery is used, the electric telescopic plug pin assembly 202 on the leakage disconnection module 2 extends out, the branching conductive column 204 is fixedly connected with the lithium battery main body 5, the lead wire on the circuit switching detection module 4 is connected with the branching conductive column 204, the conduction of different circuits on the circuit switching detection module 4 is realized through the sliding of the circuit switching switch assembly 404, the current is converted into a pressure value electric signal through the electromagnetic counting assembly 406, the detection of the voltage, the current and the internal resistance is realized through the calculation conversion of the detection chip 403, the leakage detection is realized through the leakage detection sensing plate 206 on the leakage disconnection module 2, the temperature measurement function is realized through the temperature measurement assembly 103 on the waterproof temperature measurement housing 1, and the waterproof function is realized through the closing of the waterproof shell 101 and the waterproof wiring board 302; when a fault is detected, the alarm sliding switch assembly 306 of the automatic alarm module 3 is closed in a sliding way, and the alarm indicator lamp 304 is lightened to realize an alarm function; when leakage occurs, the electric telescopic plug pin assembly 202 on the leakage disconnection module 2 is contracted, so that the disconnection spring 203 drives the branching conductive column 204 to retract and disconnect power, and the disconnection protection function is realized.
Specifically, as shown in fig. 3 and 4, the fixed locking block 102 is used for fixedly installing the automatic alarm module 3; the waterproof temperature measuring shell 1 is made of waterproof materials and is used for the waterproof function of the lithium battery main body 5; the heat conduction patch 10301 and the heat conduction copper column 10302 on the temperature measurement component 103 transfer heat to the temperature measurement meter 10303, and the transparent heat preservation cylinder 10304 prevents external environment interference to realize the temperature measurement function.
As shown in fig. 5 and 6, the wire-dividing conductive column 204 is pressed down to connect the positive and negative electrodes of the lithium battery main body 5, and then the electric push rod 20201 on the electric telescopic pin assembly 202 drives the pin connection column 20202 and the pin plugboard 20203 to be inserted into the wire-dividing conductive column 204, so as to realize the fixing function of the wire-dividing conductive column 204; the branching conductive column 204 supplies power to the leakage detection sensing plate 206 through a wire, when the lithium battery main body 5 leaks, the leakage can drop on the leakage detection sensing plate 206 and is detected by the leakage detection sensing plate 206, so that a leakage detection function is realized; after the leakage detection sensing plate 206 detects the leakage, the leakage detection sensing plate 206 transmits an electric signal to the electric push rod 20201 through the wire on the disconnection mounting frame 205, the electric push rod 20201 drives the plug pin connecting column 20202 and the plug pin plug plate 20203 to be recovered and pulled out of the disconnection conductive column 204, and at the moment, the disconnection spring 203 rebounds rapidly to drive the disconnection conductive column 204 to be separated from the lithium battery main body 5, so that the leakage disconnection function is realized.
As shown in fig. 7 and 8, a fixing lock catch 301 on a waterproof wiring board 302 is used for fixing and mounting the automatic alarm module 3 on the waterproof temperature measuring housing 1; when the lane change detection module 4 detects that the internal parameters of the lithium battery main body 5 are abnormal, the alarm motor 308 is started to drive the locking bolt 307 to rotate, when the locking bolt 307 is matched with the form of the fixed slot 30604 on the alarm sliding switch assembly 306, the alarm spring 305 drives the alarm insulating sliding block 30601 to rebound, the alarm conductive connector 30602 is respectively contacted with the alarm power supply 303 and the alarm indicator lamp 304 to be electrified, and current is transmitted to the alarm indicator lamp 304 from the alarm power supply 303 through the conductive connecting wire 30303, so that the alarm indicator lamp 304 is lightened, and an automatic alarm function is realized.
As shown in fig. 9, 10 and 11, when the internal resistance of the lithium battery main body 5 needs to be detected, the switch component 404 which is slidably mounted on the switch detection mounting frame 401 is shifted to the internal resistance detection gear at the left end, so that the internal resistance detection circuit is closed, at this time, current flows out from the positive electrode of the detection power supply 409, passes through the electromagnetic counting component 406 and the first resistor 405 and then flows into the lithium battery main body 5, finally returns to the negative electrode of the detection power supply 409, when the current passes through the electromagnetic counting component 406, the magnitude of loop current is converted into a pressure value signal, the pressure value signal is transmitted to the detection chip 403, and the detection chip 403 then calculates and converts the pressure value signal into a resistance value electrical signal, and the resistance value electrical signal is transmitted to the numerical control panel 402, so that the detection function of the internal resistance of the lithium battery main body 5 is realized; when the current of the lithium battery main body 5 needs to be detected, the switch component 404 which is slidably arranged on the switch detection mounting frame 401 is shifted to a middle current detection gear, the current flows out from the positive electrode of the lithium battery main body 5, and simultaneously flows back to the negative electrode of the lithium battery main body 5 through the third resistor 408 and the electromagnetic counting component 406, the third resistor 408 shunts the electromagnetic counting component 406 to expand the range of the electromagnetic counting component 406, when the current flows through the electromagnetic counting component 406, the magnitude of loop current is converted into a pressure value signal and is transmitted to the detection chip 403, and the detection chip 403 calculates and converts the pressure value signal into a current value electric signal and is transmitted to the numerical control panel 402, so that the detection function of the current of the lithium battery main body 5 is realized; when the voltage of the lithium battery main body 5 needs to be detected, the switch component 404 which is slidably arranged on the switch detection mounting rack 401 is shifted to a voltage detection gear at the right end, current flows out from the positive electrode of the lithium battery main body 5 and flows back to the negative electrode of the lithium battery main body 5 through the second resistor 407 and the electromagnetic counting component 406, the second resistor 407 is a resistor with large internal resistance, so that the influence on a circuit is reduced, when the current flows through the electromagnetic counting component 406, the magnitude of loop current is converted into a pressure value signal and is transmitted to the detection chip 403, and the detection chip 403 calculates and converts the pressure value signal into a voltage value electric signal and is transmitted to the numerical control panel 402, so that the detection function of the voltage of the lithium battery main body 5 is realized; when a circuit needs to be switched, the circuit switching pull ring 40404 is manually rotated, the circuit switching pull ring 40404 drives the two circuit switching slide plates 40403 to shrink inwards through the circuit switching crank 40405, the circuit switching slide plates 40403 drive the circuit switching conductive joints 40401 to be pulled out, then the circuit switching insulating slide blocks 40402 are slid to the position of a circuit to be closed, the circuit switching pull ring 40404 is loosened, the circuit switching conductive springs 40406 rebound to drive the circuit switching conductive joints 40401 to be connected with a wire, and current flows through the circuit switching conductive joints 40401, the circuit switching conductive springs 40406 and the conductive fixed blocks 40407, so that a circuit switching function is realized; when the electromagnetic counting assembly 406 works, the pressure coil 40605 is electrified to generate a magnetic field on the pressure electromagnet 40604 on the pressure insulating cover 40606, and the pressure electromagnet 40604 pushes the pressure magnet 40603 to advance to compress the pressure spring 40602, so that pressure is transmitted to the piezoelectric sensor 40601 to convert a pressure value into an electric signal, and a signal conversion function is realized.
The present invention is not limited to the above-described embodiments, and various modifications are possible within the scope of the present invention without inventive labor, as those skilled in the art will recognize from the above-described concepts.

Claims (10)

1. The utility model provides a trouble self-detection lithium cell, includes waterproof temperature measurement shell (1), weeping disconnection module (2), automatic alarm module (3), detection module (4), lithium cell main part (5), its characterized in that of changing the way: the lithium battery body (5) is fixedly provided with a waterproof temperature measurement shell (1), a leakage disconnection module (2) and a circuit switching detection module (4), after the leakage disconnection module (2) detects liquid through a leakage detection sensing plate (206), an electric signal is transmitted to an electric telescopic plug pin assembly (202), the electric telescopic plug pin assembly (202) is retracted, a branch conductive column (204) is popped out to be disconnected for leakage detection and disconnection of the lithium battery body (5), the circuit switching detection module (4) is used for switching a detection circuit through sliding of a circuit switching switch assembly (404), an electromagnetic counting assembly (406) is used for converting current values into pressure value electric signals, and then all values are transmitted to a numerical control panel (402) through calculation of a detection chip (403) to be used for detection of voltage, current and internal resistance; still fixed mounting has automatic alarm module (3) on waterproof temperature measurement shell (1), waterproof temperature measurement shell (1) is used for the temperature measurement to lithium cell main part (5) through temperature measurement subassembly (103), automatic alarm module (3) are through alarm motor (308) drive dead bolt (307) rotation for alarm sliding switch subassembly (306) are closed by bouncing after breaking away from dead bolt (307), are used for the fault alarm of lithium cell main part (5).
2. A fault self-detecting lithium battery as in claim 1, wherein: the channel switching detection module (4) comprises a channel switching detection mounting frame (401), a numerical control panel (402), a detection chip (403), a channel switching switch assembly (404), a first resistor (405), an electromagnetic counting assembly (406), a second resistor (407), a third resistor (408) and a detection power supply (409); the numerical control panel (402) is fixedly arranged on the road changing detection mounting frame (401); the detection chip (403) is fixedly arranged on the lane change detection mounting frame (401), and meanwhile, the detection chip (403) is connected with the numerical control panel (402) in series through a wire; the electromagnetic counting assembly (406) is fixedly arranged on the road changing detection mounting frame (401), and meanwhile, the electromagnetic counting assembly (406) is connected with the detection chip (403) in series through a wire; the second resistor (407) is fixedly arranged on the circuit switching detection mounting frame (401), meanwhile, the second resistor (407) is connected with the electromagnetic counting assembly (406) in series through a lead, and the resistance value of the second resistor (407) is 2000 omega and is used for improving the internal resistance of the voltage detection circuit; the third resistor (408) is fixedly arranged on the circuit switching detection mounting frame (401), meanwhile, the third resistor (408) is connected with the electromagnetic counting assembly (406) in parallel through a wire, and the resistance value of the third resistor (408) is 50Ω, so that the measuring range of the current detection circuit is increased; the detection power supply (409) is fixedly arranged on the road-changing detection mounting frame (401), and meanwhile, the detection power supply (409) is connected in series with the electromagnetic counting assembly (406) through a wire; the first resistor (405) is fixedly arranged on the circuit switching detection mounting frame (401), meanwhile, the first resistor (405) is connected with the electromagnetic counting assembly (406) in series through a wire, and the first resistor (405) is used for preventing the internal resistance detection circuit from being burnt due to overlarge current; the change-over switch assembly (404) is slidably mounted on the change-over detection mounting frame (401) and is used for switching between the voltage, the current and the internal resistance detection circuit.
3. A fault self-detecting lithium battery as in claim 2, wherein: the circuit-changing switch assembly (404) comprises a circuit-changing conductive joint (40401), a circuit-changing insulating sliding block (40402), a circuit-changing sliding plate (40403), a circuit-changing pull ring (40404), a circuit-changing crank (40405), a circuit-changing conductive spring (40406) and a conductive fixed block (40407); the circuit-changing conductive joint (40401) is fixedly arranged on the circuit-changing sliding plate (40403), and meanwhile, the circuit-changing conductive joint (40401) is also slidably arranged on the circuit-changing insulating sliding block (40402); the channel changing slide plate (40403) is slidably arranged on the channel changing insulating slide block (40402); two ends of the channel-changing conductive spring (40406) are respectively and fixedly arranged on the channel-changing conductive connector (40401) and the conductive fixed block (40407); the conductive fixed block (40407) is fixedly arranged on the channel changing insulating sliding block (40402); the channel changing pull ring (40404) is hinged on the channel changing insulating slide block (40402); the road changing crank (40405) is fixedly arranged on the road changing pull ring (40404), and meanwhile, the road changing crank (40405) is also slidably arranged on the road changing slide plate (40403).
4. A fault self-detecting lithium battery as in claim 3, wherein: the electromagnetic counting assembly (406) comprises a piezoelectric sensor (40601), a pressure spring (40602), a pressure magnet (40603), a pressure electromagnet (40604), a pressure coil (40605) and a pressure insulating cover (40606); a pressure coil (40605) is wound on the pressure electromagnet (40604); the pressure electromagnet (40604) is fixedly arranged on the pressure insulating cover (40606); a pressure magnet (40603) is slidably mounted on the pressure insulating cover (40606); both ends of the pressure spring (40602) are respectively fixedly arranged on the piezoelectric sensor (40601) and the pressure magnet (40603); the piezoelectric sensor (40601) is fixedly mounted on the pressure insulating cover (40606).
5. The fault self-detecting lithium battery as in claim 4, wherein: the leakage breaking module (2) comprises a breaking support (201), an electric telescopic bolt assembly (202), a breaking spring (203), a branching conductive column (204), a breaking mounting frame (205) and a leakage detection sensing plate (206); the disconnection support (201) is fixedly arranged on the disconnection mounting frame (205); the electric telescopic bolt component (202) is fixedly arranged on the disconnection support (201), and meanwhile, the electric telescopic bolt component (202) is also connected in series with the leakage detection sensing plate (206) through a wire; two ends of the disconnection spring (203) are respectively and fixedly arranged on the disconnection support (201) and the branching conductive column (204); the branching conductive column (204) is slidably arranged on the disconnection support (201), and meanwhile, the branching conductive column (204) is connected in series with the leakage detection sensing plate (206) through a wire; the weeping detects sensing board (206) fixed mounting and is connected on mounting bracket (205) absolutely.
6. A fault self-detecting lithium battery as in claim 5, wherein: the electric telescopic bolt assembly (202) comprises an electric push rod (20201), a bolt connecting column (20202) and a bolt inserting plate (20203); two ends of the bolt connecting column (20202) are respectively and fixedly arranged on the electric push rod (20201) and the bolt inserting plate (20203); the plug pin plugboard (20203) is used for inserting and fixing the branching conductive column (204).
7. The fault self-detecting lithium battery of claim 6, wherein: the automatic alarm module (3) comprises a fixed lock catch (301), a waterproof wiring board (302), an alarm power supply (303), an alarm indicator lamp (304), an alarm spring (305), an alarm sliding switch assembly (306), a locking bolt (307) and an alarm motor (308); the fixed lock catch (301) is fixedly arranged on the waterproof wiring board (302); the alarm power supply (303) is fixedly arranged on the waterproof wiring board (302); the alarm indicator lamp (304) is fixedly arranged on the waterproof wiring board (302); both ends of the alarm spring (305) are respectively fixedly arranged on the waterproof wiring board (302) and the alarm sliding switch component (306); an alarm slide switch assembly (306) is slidably mounted on the waterproof patch panel (302); the locking bolt (307) is hinged on the alarm motor (308); an alarm motor (308) is fixedly mounted on the waterproof wiring board (302).
8. The fault self-detecting lithium battery of claim 7, wherein: an alarm slide switch assembly (306) includes an alarm insulating slider (30401), an alarm conductive tab (30602), a conductive connection line (30303), a fixed slot (30304); alarm conductive connector (30602) is fixedly arranged at two ends of conductive connecting wire (30303); the conductive connecting wire (30303) is fixedly arranged on the alarm insulating sliding block (30401); the alarm insulation sliding block (30401) is provided with a fixed slot (30604).
9. The fault self-detecting lithium battery of claim 8, wherein: the waterproof temperature measurement shell (1) comprises a waterproof shell (101), a fixed locking block (102) and a temperature measurement assembly (103); the fixed locking block (102) is fixedly arranged on the waterproof shell (101); the waterproof shell (101) is made of waterproof materials and is used for waterproofing; the temperature measuring component (103) is fixedly arranged on the waterproof shell (101).
10. The fault self-detecting lithium battery of claim 9, wherein: the temperature measuring component (103) comprises a heat conducting patch (10301), a heat conducting copper column (10302), a temperature measuring meter (10303) and a transparent heat preservation cylinder (10304); the heat conduction copper column (10302) is fixedly arranged on the heat conduction patch (10301); the transparent heat preservation cylinder (10304) is fixedly arranged on the heat conduction copper column (10302); the thermometer (10303) is fixedly arranged on the transparent heat preservation cylinder (10304), and meanwhile, the thermometer (10303) is fixedly arranged on the heat conduction copper column (10302).
CN202311395223.8A 2023-10-26 2023-10-26 Fault self-detection lithium battery Active CN117134012B (en)

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