CN111729223A - Fire fighting system for testing power battery and control method thereof - Google Patents

Fire fighting system for testing power battery and control method thereof Download PDF

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Publication number
CN111729223A
CN111729223A CN202010600280.5A CN202010600280A CN111729223A CN 111729223 A CN111729223 A CN 111729223A CN 202010600280 A CN202010600280 A CN 202010600280A CN 111729223 A CN111729223 A CN 111729223A
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China
Prior art keywords
battery pack
water tank
battery
testing
control
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Pending
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CN202010600280.5A
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Chinese (zh)
Inventor
陈子胜
牛宗铭
张林立
张志祥
贾清博
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FAW Group Corp
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FAW Group Corp
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Priority to CN202010600280.5A priority Critical patent/CN111729223A/en
Publication of CN111729223A publication Critical patent/CN111729223A/en
Pending legal-status Critical Current

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    • AHUMAN NECESSITIES
    • A62LIFE-SAVING; FIRE-FIGHTING
    • A62CFIRE-FIGHTING
    • A62C3/00Fire prevention, containment or extinguishing specially adapted for particular objects or places
    • A62C3/16Fire prevention, containment or extinguishing specially adapted for particular objects or places in electrical installations, e.g. cableways
    • AHUMAN NECESSITIES
    • A62LIFE-SAVING; FIRE-FIGHTING
    • A62CFIRE-FIGHTING
    • A62C37/00Control of fire-fighting equipment
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01BMEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B11/00Measuring arrangements characterised by the use of optical techniques
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01JMEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
    • G01J5/00Radiation pyrometry, e.g. infrared or optical thermometry
    • 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]
    • 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
    • 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]
    • G01R31/396Acquisition or processing of data for testing or for monitoring individual cells or groups of cells within a battery
    • 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
    • H01M10/486Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte for measuring temperature
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01JMEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
    • G01J5/00Radiation pyrometry, e.g. infrared or optical thermometry
    • G01J2005/0077Imaging
    • 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)
  • Emergency Management (AREA)
  • Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Business, Economics & Management (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Battery Mounting, Suspending (AREA)

Abstract

The invention discloses a fire fighting system for testing a power battery and a control method thereof, and belongs to the technical field of testing of power batteries. The fire fighting system for testing the power battery comprises a battery management system, a battery pack and a power battery testing system, wherein the battery management system is arranged on the inner side of the battery pack and is used for detecting the temperature inside the battery pack; the thermal infrared imager is arranged on the outer side of the battery pack and used for detecting the temperature outside the battery pack; the opposite-inserting device is arranged on the test board for testing the battery pack and used for connecting or disconnecting the high-voltage wire and the low-voltage wire on the test board; the water tank system is used for sinking the battery pack; the manipulator system is used for grabbing the battery pack and moving the battery pack to the water tank; and the control system is in signal connection with the battery management system and the thermal infrared imager respectively and is in control connection with the plug-in device, the water tank system and the manipulator system. The advantages are that: the method has the characteristics of timely thermal runaway identification, accurate grabbing of the battery pack, rapid submerged treatment and lower production cost.

Description

Fire fighting system for testing power battery and control method thereof
Technical Field
The invention relates to the technical field of power battery testing, in particular to a fire fighting system for testing a power battery and a control method thereof.
Background
The power battery is a power supply capable of providing a power source, and is a storage battery for providing power for electric automobiles, electric trains, electric bicycles and golf carts. In consideration of the use safety and performance requirements of the power battery, the power battery needs to be tested offline before being shipped out.
The off-line testing process of the power battery pack comprises charging and discharging steps, particularly when direct current internal resistance testing is carried out, short-time current is large, the temperature of a battery core of a single battery in the power battery pack is easy to rise, thermal management is invalid, and thermal runaway conditions of temperature rise, smoke generation and even fire generation are caused.
At present, a special fire extinguishing agent is used for carrying out in-situ fire extinguishing treatment on a thermal runaway power battery pack so as to deal with the thermal runaway condition of the power battery pack in the online test process, but the special fire extinguishing agent is expensive, so that the production cost is high.
In order to solve the problems, a fire-fighting disposal water tank, a lifting rack, an electrical control device and a stacker are arranged in a power battery offline test production line, although the power battery pack with thermal runaway can be subjected to sinking disposal, the thermal runaway identification time is longer due to the fact that only the electrical control device is arranged; and the lifting rack and the stacker are used for moving the power battery pack out of control due to heat to a fire-fighting disposal water tank for sinking disposal, so that the battery pack is not accurately grabbed, the sinking disposal speed is low, and the fire accident or the explosion accident can be easily caused in the moving process.
In view of the above, it is desirable to design a fire fighting system for testing a power battery and a control method thereof to solve the above problems.
Disclosure of Invention
The invention aims to provide a fire fighting system for testing a power battery, which has the characteristics of timely thermal runaway identification, accurate battery pack grabbing, rapid submerged disposal and lower production cost.
In order to achieve the purpose, the invention adopts the following technical scheme:
a fire protection system for power battery testing, the fire protection system for power battery testing comprising:
a battery management system disposed inside a battery pack, the battery management system being configured to detect a temperature inside the battery pack;
the thermal infrared imager is arranged on the outer side of the battery pack and used for detecting the temperature outside the battery pack;
the plug-in device is arranged on a test board for testing the battery pack and is used for connecting or disconnecting a high-voltage wire and a low-voltage wire on the test board;
a water tank system including a water tank filled with water at an inner side thereof, the water tank being for the battery pack to sink into;
the manipulator system is used for grabbing the battery pack and moving the battery pack to the water tank;
the control system is in signal connection with the battery management system and the thermal infrared imager respectively and is in control connection with the plug-in device, the water tank system and the manipulator system; the control system is used for receiving temperature values detected by the battery management system and the thermal infrared imager, controlling the plug-in device to disconnect the high-voltage wire and the low-voltage wire, simultaneously controlling the water tank to be opened, controlling the manipulator system to grab the battery pack with the temperature value exceeding a preset value, and moving the battery pack to the water tank.
Preferably, the fire fighting system for testing the power battery further comprises:
the fence comprises a frame and explosion-proof glass arranged on the frame, and is arranged on the outer side of the plug-in device, the water tank system, the manipulator system and the battery pack in a surrounding mode.
Preferably, the robot system includes:
a truss;
the bracket is arranged on the truss in a sliding mode;
the clamp is arranged at the bottom end of the support and used for clamping a tray used for lifting the battery pack.
Preferably, a CCD camera is arranged on the clamp, and the CCD camera is used for detecting a gripping position of the clamp on the tray.
Preferably, the bracket is further provided with a punching mechanism, and the punching mechanism is used for punching holes in the top end of the battery pack to be sunk into the water tank.
Preferably, the robot system further comprises:
the first driving piece is arranged on the bracket and is used for driving the bracket to slide on the truss;
the second driving piece is arranged on the bracket and used for driving the clamp to clamp the tray;
and the control module is in control connection with the control system and is in control connection with the first driving piece and the second driving piece.
Preferably, the docking device includes:
a plug connected to an end of the high voltage line or the low voltage line;
and the third driving piece is in driving connection with the plug and is used for driving the plug so as to connect or disconnect the high-voltage wire and the low-voltage wire.
Preferably, the water tank system further comprises a fourth driving member, which is in driving connection with the upper cover of the water tank, and the fourth driving member is used for driving the opening and closing of the upper cover.
Preferably, the water tank system further comprises a fifth driving member for driving the water in the water tank after being sunk by the battery pack to move into a fixed container.
The invention also aims to provide a control method of the fire fighting system for testing the power battery, which has the characteristics of timely thermal runaway identification and accurate battery pack grabbing.
In order to achieve the purpose, the invention adopts the following technical scheme:
a control method of a fire fighting system for power battery testing as described above, the control method comprising the steps of:
the battery management system detects the temperature inside the battery pack, the thermal infrared imager detects the temperature outside the battery pack, and the detected temperature value is transmitted to the control system;
when any one of the temperature values received by the control system exceeds a preset value, the control system controls the opposite insertion device to disconnect the high-voltage wire and the low-voltage wire so as to disconnect the electric connection between the battery pack and the test board;
the control system controls the water tank to be opened;
the control system controls the manipulator system to grab the battery pack with the temperature value exceeding a preset value and move the battery pack to an opening of the water tank;
and an operator observes the battery pack at the water tank and enables the battery pack to sink into the water tank or demount the battery pack for repair.
The invention has the beneficial effects that:
by arranging the battery management system and the thermal infrared imager, the temperature of the inside and the outside of the battery pack under test can be respectively detected, and the detected temperature values are transmitted to the control system; when any one of the temperature values received by the control system exceeds a preset value, the control system controls the opposite-inserting device to disconnect the high-voltage wire and the low-voltage wire, so that the battery pack under test is disconnected from the test bench; meanwhile, the control system controls the opening of the water tank and controls the manipulator system to grab the battery pack with the temperature value exceeding the preset value and move the battery pack to the opening of the water tank; at the moment, an operator quickly observes the battery pack standing in the water tank and determines to sink the battery pack into the water tank or disassemble the battery pack for repair according to whether the state of the battery pack is deteriorated; the battery management system and the thermal infrared imager are arranged to respectively detect the temperature inside and outside the battery pack, so that the temperature of the battery pack can be more comprehensively and timely fed back to the control system, the control system can quickly respond, and the thermal runaway can be more timely identified; meanwhile, the manipulator system is arranged to automatically grab and move the battery pack, so that the battery pack can be grabbed more accurately; when the temperature value received by the control system exceeds a preset value, the water tank is controlled to be opened, so that the battery pack needing sinking treatment can be quickly sunk into the water tank, the sinking treatment is quicker and more efficient, the fire or explosion accident in the process of grabbing or moving the battery pack is avoided, and the safety is higher; and the special fire extinguishing agent with higher price is not needed to be used, so that the production cost is lower.
Drawings
Fig. 1 is a schematic structural diagram of a fire fighting system for testing a power battery according to an embodiment of the present invention;
fig. 2 is a schematic flow chart of a control method of a fire fighting system for testing a power battery according to a second embodiment of the present invention.
Description of reference numerals:
1-infrared thermal imaging system; 2-opposite insertion device; 3-a water tank system; 31-a water tank; 32-upper cover; 4-a control system; 5-fencing; 6-a manipulator system; 61-a control module; 62-a bracket; 63-truss.
Detailed Description
All of the features disclosed in this specification, or all of the steps in any method or process so disclosed, may be combined in any combination, except combinations of features and/or steps that are mutually exclusive.
Any feature disclosed in this specification may be replaced by alternative features serving equivalent or similar purposes, unless expressly stated otherwise. That is, unless expressly stated otherwise, each feature is only an example of a generic series of equivalent or similar features. Like reference numerals refer to like elements throughout the specification.
In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.
In the description of the present embodiment, the terms "upper", "lower", "left", "right", and the like are used based on the orientations and positional relationships shown in the drawings only for convenience of description and simplification of operation, and do not indicate or imply that the referred device or element must have a specific orientation, be configured and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used only for descriptive purposes and are not intended to have a special meaning.
In order to make the technical problems solved, the technical solutions adopted and the technical effects achieved by the present invention clearer, the technical solutions of the present invention are further described below by way of specific embodiments with reference to the accompanying drawings.
Example one
At present, a fire-fighting disposal water tank, a lifting rack, an electrical control device and a stacker are arranged in a power battery offline test production line, although the power battery pack with thermal runaway can be subjected to submerged disposal, the thermal runaway identification time is longer due to the fact that only the electrical control device is arranged; and the lifting rack and the stacker are used for moving the power battery pack out of control due to heat to a fire-fighting disposal water tank for sinking disposal, so that the battery pack is not accurately grabbed, the sinking disposal speed is low, and the fire accident or the explosion accident can be easily caused in the moving process.
In order to solve the above problems, in the present embodiment, a fire fighting system for testing a power battery is provided, and the fire fighting system for testing a power battery is disposed on an offline test line of a power battery of a passenger vehicle, so as to cope with thermal runaway conditions of temperature rise, smoke generation and even fire catching of the power battery during a test process. In this embodiment, the power battery is applied to the new energy electric vehicle and is used for providing power for the new energy electric vehicle. In other embodiments, the power battery can be applied to other passenger cars. In this embodiment, for convenience of testing, a plurality of power batteries are combined to form a battery pack (not shown).
Specifically, as shown in fig. 1, the fire fighting System for testing the power battery includes a Battery Management System (BMS) (not shown), a thermal infrared imager 1, a docking device 2, a water tank System 3, and a manipulator System 6. The battery management system is arranged on the inner side of the battery pack and used for detecting the temperature inside the battery pack; the thermal infrared imager 1 is arranged on the outer side of the battery pack, and the thermal infrared imager 1 is used for detecting the temperature outside the battery pack; the opposite-inserting device 2 is arranged on a test board for testing the performance of the battery pack, and the opposite-inserting device 2 is used for connecting or disconnecting a high-voltage wire and a low-voltage wire on the test board so as to connect or disconnect the electric connection between the test board and the battery pack; the water tank system 3 includes a water tank 31 filled with water at an inner side thereof, the water tank 31 being used for sinking the battery pack; the manipulator system 6 is used for automatically grabbing the battery pack and moving the battery pack to the water tank 31 so as to perform submerged treatment on the battery pack with a temperature value exceeding a preset value and a fire tendency.
Furthermore, the fire fighting system for testing the power battery also comprises a control system 4, wherein the control system 4 is respectively in signal connection with the battery management system and the thermal infrared imager 1 and is in control connection with the plug-in device 2, the water tank system 3 and the manipulator system 6; the control system 4 is used for receiving temperature values detected by the battery management system and the thermal infrared imager 1, and when any one of the received temperature values is judged to exceed a preset value, the control system 4 controls the oppositely-inserting device 2 to disconnect the high-voltage wire and the low-voltage wire, and simultaneously controls the opening of the water tank 31 and the manipulator system 6 to automatically grab the battery pack with the temperature value exceeding the preset value and move the battery pack to the position above the opening of the water tank 31. In this embodiment, the control system 4 is an EOL offline test control system. The EOL offline test control system includes a low-voltage harness and a Controller Area Network (CAN) card, and is capable of reading and analyzing temperature information transmitted by the battery management system and the thermal infrared imager 1 to determine the temperature rise of the battery pack in real time, and when it is determined that the temperature rise of the battery pack is abnormal, the inserting device 2, the water tank system 3 and the manipulator system 6 CAN be respectively controlled to automatically perform corresponding operations. In this embodiment, the structure of the test control system under the EOL line is conventional in the prior art, and therefore, the detailed description of the specific structure and the control principle of the test control system under the EOL line is not repeated here.
By arranging the battery management system and the thermal infrared imager 1, the temperature of the inside and the outside of the battery pack which is subjected to the performance test can be respectively detected, and the detected temperature values are transmitted to the control system 4; when the control system 4 judges that any one of the received temperature values exceeds the preset value, the control system 4 controls the opposite-inserting device 2 to disconnect the high-voltage wire and the low-voltage wire, so that the battery pack which is undergoing the performance test is disconnected from the test bench, and the battery pack with the temperature value exceeding the preset value can be safely processed in the follow-up process; meanwhile, the control system 4 controls the water tank 31 to be opened and controls the manipulator system 6 to automatically grab the battery pack with the temperature value exceeding the preset value and move the battery pack to the opening of the water tank 31; at this time, an operator quickly observes the battery pack standing at the opening of the water tank 31, and determines to sink the battery pack into the water tank 31 or detach the battery pack for repair according to whether the temperature rise state of the battery pack is continuously deteriorated.
The battery management system and the thermal infrared imager 1 are arranged to respectively detect the temperature inside and outside the battery pack, so that the temperature of the battery pack can be more comprehensively and timely fed back to the control system 4, the control system 4 can quickly respond, and the thermal runaway can be more timely identified; meanwhile, the manipulator system 6 is arranged to automatically grab and move the battery pack, so that the battery pack can be grabbed more accurately; when the temperature value received by the control system 4 exceeds the preset value, the water tank 31 is controlled to be opened, so that the battery pack needing sinking treatment can be quickly sunk into the water tank 31, the sinking treatment is quicker and more efficient, the fire or explosion accident in the process of grabbing or moving the battery pack is avoided, and the safety is higher; and the special fire extinguishing agent with higher price is not needed to be used, so that the production cost is lower.
Further, as shown in fig. 1, the fire protection system for testing the power battery further comprises a fence 5, the fence 5 comprises a frame and explosion-proof glass installed on the frame, the frame of the fence 5 is rectangular, so that the plug-in device 2, the water tank system 3, the manipulator system 6 and the battery pack are all arranged on the inner side of the fence 5 in an enclosing manner, and therefore explosive fragments generated after the battery pack is accidentally ignited and explodes are prevented from flying out to hurt people, and the safety of the fire protection system for testing the power battery is further guaranteed. In this embodiment, the frame is made of an aluminum alloy profile. The aluminum alloy section has the characteristics of environmental protection, energy conservation and excellent weather resistance.
Specifically, as shown in fig. 1, the robot system 6 includes a truss 63, a support 62, and a jig (not shown). The truss 63 is arranged at the top end of the battery pack and water tank system 3, the support 62 is arranged on two sides of the truss 63 in a sliding manner, the clamp is arranged at the bottom end of the support 62, and the clamp is used for clamping a tray (not shown in the figure) for lifting the battery pack, so that the support 62 slides the battery pack on the tray to the water tank 31 along the truss 63. The clamp is provided with a CCD camera (not marked in the figure), and the CCD camera is used for detecting the clamping position of the clamp on the tray, so that the clamp can stably clamp the tray, and the battery pack on the tray is prevented from tilting and falling in the process of moving the tray. A CCD (Charge Coupled Device) camera can convert light into charges and store and transfer the charges, and can also take out the stored charges to change the voltage, so that the CCD camera is an ideal CCD camera element.
Further, still be provided with the mechanism of punching (not marking in the figure) on the support 62, the mechanism of punching is used for punching at the top that confirms the battery that needs to sink into water tank 31 to pierce through the apron on battery top, so that the battery package can sink into the bottom of water tank 31 smoothly and completely, avoid the upper end part of battery package can not sink into water tank 31 completely, thereby lead to the problem of battery package explosion fire accident. In this embodiment, the punching mechanism is a conventional structure in the prior art, and therefore, detailed descriptions of the specific structure and the working principle of the punching mechanism are not repeated here.
Specifically, as shown in fig. 1, the robot system 6 further includes a first driving member (not shown), a second driving member (not shown), and a control module 61. The first driving piece is arranged on the bracket 62, is in driving connection with the bracket 62, and is used for driving the bracket 62 to slide back and forth on the truss 63; in other embodiments, the bracket 62 may be manually pushed to slide the bracket 62 on the truss 63. The second driving piece is arranged on the bracket 62, is in driving connection with the clamp and is used for driving the clamp to clamp the tray so as to clamp the battery pack on the tray; the control module 61 is in control connection with the control system 4, and the control module 61 is in control connection with the first driving part and the second driving part; the control system 4 is also used for controlling the module 61, so that the control module 61 controls the first driving element to drive the bracket 62 to slide on the truss 63 and controls the second driving element to drive the clamp to clamp the pallet. In this embodiment, the second driving member is a motor.
Wherein, one of the bracket 62 and the truss 63 is provided with a slide rail (not shown), and the other is provided with a slide block (not shown), and the slide block can slide along the slide rail, so that the bracket 62 slides on the truss 63. In this embodiment, the bracket 62 is provided with a slider, and the truss 63 is provided with a slide rail. In other embodiments, a slide rail may be provided on the support 62 and a slider may be provided on the truss 63.
The control module 61 is a master device for controlling the starting, speed regulation, braking and reversing of the motor by changing the wiring of the main circuit or the control circuit and changing the resistance value in the circuit according to a preset sequence. The system consists of a program counter, an instruction register, an instruction decoder, a time sequence generator and an operation controller, and is a decision mechanism for issuing commands, namely, the decision mechanism is used for coordinating and commanding the operation of the whole computer system. The control module 61 in this embodiment is a control module that is commonly used in the prior art, and therefore, the control principle and the working process of the control module 61 are not described in detail here.
Further, the opposite plug device 2 comprises a plug and a third driving member (not shown in the figure). Wherein, the plug is connected with the end part of the high-voltage wire or the low-voltage wire; the third driving piece is in driving connection with the plug and used for driving the plug so as to enable the high-voltage line and the low-voltage line to be connected or disconnected. In this embodiment, the plug setting is at the tip of low-voltage line, and third driving piece drive plug to the tip that drives the low-voltage line removes to the direction that is close to or keeps away from the high-voltage line tip, so that is connected or breaks off between low-voltage line and the high-voltage line. In other embodiments, the plug may also be arranged at the end of the high voltage line. In this embodiment, the third driving member is an actuating cylinder.
Specifically, the water tank system 3 further includes a fourth driving member (not shown in the figure) which is in driving connection with the upper cover 32 of the water tank 31, and the fourth driving member is used for driving the upper cover 32 to open and close; and the fourth driving part is in control connection with the control system 4, and the control system 4 controls the fourth driving part again, so that the fourth driving part drives the upper cover 32 of the water tank 31 to open or close. In this embodiment, the fourth driving member is an uncovering cylinder. Further, water tank system 3 still includes the fifth driving piece, and the fifth driving piece is arranged in driving water tank 31 through the water after the battery package sinks and moves to fixed container to unify the processing to waste water, safety ring protects, avoids waste water to cause the pollution to the environment. In this embodiment, the fifth driving member is a drain pump.
Example two
In this embodiment, a control method of a fire protection system for testing a power battery as in the first embodiment is provided, which is simple to control and has a high degree of automation. Specifically, the control method of the fire fighting system for testing the power battery comprises the following steps: putting the battery pack: putting the battery pack into a corresponding performance testing station to perform performance testing on the battery pack; detecting the temperature of the battery pack: detecting the temperature inside the battery pack by using a battery management system, detecting the temperature outside the battery pack by using a thermal infrared imager 1, and transmitting the detected temperature values to a control system 4; disconnecting the high-voltage line and the low-voltage line: when the control system 4 judges that any one of the two received temperature values exceeds a preset value, the control system 4 controls the opposite-inserting device 2 to disconnect the high-voltage wire and the low-voltage wire, so that the electric connection between the battery pack and the test board is disconnected; opening the water tank 31: the control system 4 controls the water tank system 3 to open the upper cover 32 of the water tank 31; grabbing and moving the battery pack: the control system 4 controls the manipulator system 6 to grab the battery pack with the temperature value exceeding the preset value and move the battery pack to the opening of the water tank 31; processing the battery pack: an operator observes the battery pack standing at the water tank 31 and enables the battery pack to sink into the water tank 31 or demounts the battery pack for repair; wastewater treatment: an operator takes out the battery pack subjected to the sinking treatment from the water tank 31 to be scrapped, and takes out the wastewater in the water tank 31 into a fixed container to be uniformly treated.
Specifically, as shown in fig. 2, the control method of the fire fighting system for testing the power battery in the embodiment includes the following specific steps: firstly, placing a battery pack into a test station for performance test; then, simultaneously detecting the temperature of the inside of the battery pack and the temperature of the outside of the battery pack through the battery management system and the thermal infrared imager 1, and transmitting the detected temperature values to the control system 4; when the two temperature values received by the control system 4 are normal, the control system 4 does not work, and at the moment, the battery pack leaves the test station after passing the performance test; when any one of the two temperature values received by the control system 4 exceeds the preset value, the control system 4 controls the third driving piece in the opposite insertion device 2, so that the third driving piece drives the plug to disconnect the electric connection between the high-voltage line and the low-voltage line on the test table, and further disconnect the electric connection between the test table and the battery pack, and further facilitate the subsequent treatment of the battery pack.
Then, the control system 4 controls the fourth driving member in the water tank system 3 to open the upper cover 32 of the water tank 31; meanwhile, the control system 4 controls the control module 61 in the manipulator system 6, so that the control module 61 controls the first driving member, so that the first driving member drives the support 62 to slide along the truss 63 to the upper end of the battery pack with the detection temperature higher than the preset value, the control module 61 controls the second driving member, so that the second driving member drives the clamp at the bottom end of the support 62 to clamp the tray holding the battery pack with the detection temperature exceeding the preset value, and then the control module 61 controls the first driving member, so that the first driving member drives the support 62 clamping the battery pack with the detection temperature exceeding the preset value to slide along the truss 63 to the upper part of the opening of the water tank 31.
Finally, the operator quickly and carefully observes the battery pack standing above the opening of the water tank 31; when an operator observes that the temperature state of the battery pack does not rise continuously or the trend of smoking and fire catching occurs, the operator disassembles and repairs the battery pack at the opening of the water tank 31 after observing the battery pack standing still again and determining the state safety of the battery pack; when the operator observes that the temperature state of the battery pack tends to rise continuously, namely the probability of the smoke or fire state is high, the operator immediately starts a punching mechanism in the manipulator system 6 to enable the punching mechanism to pierce a cover plate at the top end of the battery; meanwhile, the operator starts the second driving member immediately, so that the second driving member drives the clamp to loosen the tray, and the tray and the battery pack are both immersed into the bottom of the water tank 31 immediately; after the battery package is subjected to complete submergence treatment, the operator takes out the battery package after the submergence is treated to scrap and dispose, and the operator restarts the fifth driving part so that the fifth driving part moves the wastewater in the water tank 31 into the fixed container to uniformly treat the wastewater to complete the control process of the fire-fighting system for testing the whole power battery. Wherein, the rail 5 that sets up will all enclose the inboard of establishing at rail 5 to plug-in device 2, water tank system 3, manipulator system 6 and battery package, and all set up control system 4 and control module 61 in the outside of rail 5 to prevent that the battery package from taking place unexpected to fire and leading to the explosive fragments after the explosion to fly out and hinder the people, and the operator all stands in the outside of rail 5 and operates in whole operation process, in order to guarantee the security in whole control process.
The above description is only a preferred embodiment of the present invention, and for those skilled in the art, the present invention should not be limited by the description of the present invention, which should be interpreted as a limitation.

Claims (10)

1. A fire extinguishing system for testing a power battery is characterized by comprising:
a battery management system disposed inside a battery pack, the battery management system being configured to detect a temperature inside the battery pack;
the thermal infrared imager (1) is arranged on the outer side of the battery pack, and the thermal infrared imager (1) is used for detecting the temperature outside the battery pack;
the oppositely inserting device (2) is arranged on a test board for testing the battery pack, and the oppositely inserting device (2) is used for connecting or disconnecting a high-voltage wire and a low-voltage wire on the test board;
a water tank system (3) comprising a water tank (31) filled with water on the inside, the water tank (31) being used for the battery pack to sink in;
the manipulator system (6) is used for grabbing the battery pack and moving the battery pack to the water tank (31);
the control system (4) is in signal connection with the battery management system and the thermal infrared imager (1) respectively and is in control connection with the plug-in device (2), the water tank system (3) and the manipulator system (6); the control system (4) is used for receiving temperature values detected by the battery management system and the thermal infrared imager (1), controlling the plug-in device (2) to disconnect the high-voltage wire and the low-voltage wire, simultaneously controlling the water tank (31) to be opened, controlling the manipulator system (6) to grab the battery pack with the temperature value exceeding a preset value, and moving the battery pack to the water tank (31).
2. A fire protection system for power battery testing as defined in claim 1, further comprising:
rail (5), rail (5) are in including frame and setting explosion-proof glass on the frame, rail (5) enclose to be established device (2) is inserted to the plug-in components, water tank system (3) manipulator system (6) reach the outside of battery package.
3. Fire fighting system for power battery testing according to claim 1, characterized in that the manipulator system (6) comprises:
a truss (63);
the bracket (62), the said bracket (62) is set up on the said truss (63) slidably;
the clamp is arranged at the bottom end of the support (62) and used for clamping a tray used for lifting the battery pack.
4. A fire fighting system for testing power batteries according to claim 3, wherein a CCD camera is provided on the clamp for detecting a gripping position of the clamp on the tray.
5. A fire fighting system for testing power batteries according to claim 3, characterized in that the bracket (62) is further provided with a punching mechanism for punching a hole at the top end of the battery pack to be sunk into the water tank (31).
6. Fire fighting system for power battery testing according to claim 3, characterized in that the manipulator system (6) further comprises:
a first driving member arranged on the bracket (62), wherein the first driving member is used for driving the bracket (62) to slide on the truss (63);
a second driving member arranged on the bracket (62), wherein the second driving member is used for driving the clamp to clamp the tray;
a control module (61) in control connection with the control system (4), and the control module (61) is in control connection with the first and second drivers.
7. Fire fighting system for power battery testing according to claim 1, characterized in that the docking device (2) comprises:
a plug connected to an end of the high voltage line or the low voltage line;
and the third driving piece is in driving connection with the plug and is used for driving the plug so as to connect or disconnect the high-voltage wire and the low-voltage wire.
8. The fire fighting system for testing power battery as defined in claim 1, wherein the water tank system (3) further comprises a fourth driving member drivingly connected to the upper cover (32) of the water tank (31), the fourth driving member being configured to drive the upper cover (32) to open and close.
9. The fire fighting system for power battery testing as defined in claim 1, wherein the water tank system (3) further comprises a fifth driving member for driving the water in the water tank (31) after sinking through the battery pack to a fixed container.
10. A control method of a fire fighting system for power battery testing as defined in any one of claims 1-9, characterized in that the control method comprises the steps of:
the battery management system detects the temperature inside the battery pack, the thermal infrared imager (1) detects the temperature outside the battery pack, and the detected temperature value is transmitted to the control system (4);
when any one of the temperature values received by the control system (4) exceeds a preset value, the control system (4) controls the plug-in device (2) to disconnect the high-voltage line and the low-voltage line so as to disconnect the electric connection between the battery pack and the test board;
the control system (4) controls the water tank (31) to be opened;
the control system (4) controls the manipulator system (6) to grab the battery pack with the temperature value exceeding a preset value and move the battery pack to an opening of the water tank (31);
an operator observes the battery pack at the water tank (31) and sinks the battery pack into the water tank (31) or detaches the battery pack for repair.
CN202010600280.5A 2020-06-28 2020-06-28 Fire fighting system for testing power battery and control method thereof Pending CN111729223A (en)

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CN113188742A (en) * 2021-04-01 2021-07-30 苏州华维诺智能科技有限公司 Battery pack impact experiment device and method thereof
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