阅读说明：本技术 一种动力电池测试的消防系统及其控制方法 (Fire fighting system for testing power battery and control method thereof ) 是由 陈子胜 牛宗铭 张林立 张志祥 贾清博 于 2020-06-28 设计创作，主要内容包括：本发明公开了一种动力电池测试的消防系统及其控制方法,属于动力电池测试技术领域。动力电池测试的消防系统包括电池管理系统,其设置在电池包内侧,电池管理系统用于检测电池包内部的温度；红外热像仪,其设置在电池包外侧,红外热像仪用于检测电池包外部的温度；对插装置,其设置在用于测试电池包的测试台上,用于接通或断开测试台上的高压线与低压线；水箱系统,用于电池包沉入；机械手系统,用于抓取电池包并移至水箱处；控制系统,其分别与电池管理系统和红外热像仪信号连接,并与对插装置、水箱系统及机械手系统控制连接。其优点在于：具有热失控识别及时、电池包抓取准确、沉水处置迅速以及生产成本较低的特点。(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.)

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.

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.