CN214672735U

CN214672735U - Power battery box protection device

Info

Publication number: CN214672735U
Application number: CN202120654381.0U
Authority: CN
Inventors: 胡伟; 刘小松
Original assignee: Jiangxi Bao'an Industry Co ltd
Current assignee: Jiangxi Bao'an Industry Co ltd
Priority date: 2021-03-31
Filing date: 2021-03-31
Publication date: 2021-11-09
Anticipated expiration: 2031-03-31

Abstract

The utility model provides a power battery box protection device, including automobile body, controller and battery compartment, the controller is installed to the inside main control cabinet of automobile body, and the battery compartment is installed to the bottom of automobile body, and fire suppression device is installed in the inside left side of battery compartment, and the inside right side of battery compartment installs three power battery boxes, and the internally mounted of battery compartment has gas detector, smoke detector, temperature detector and sensor. The power battery box protection device can realize early fire sensing, intelligent judgment, early intervention and high-efficiency fire extinguishing through the fire suppression device, protect the personal safety of electric automobiles and passenger drivers to the maximum extent, and open a life channel for driver and customer evacuation.

Description

Power battery box protection device

Technical Field

The utility model relates to a battery box protection technical field specifically is a power battery box protection device.

Background

In recent years, new energy vehicles have fire accidents occurring at the moment, great loss is caused to lives and properties of people, and wide attention is paid to all the circles of society, most of the reasons are caused by fire caused by thermal runaway of power batteries, electric energy and chemical energy in the batteries can release great heat energy in a short time, so that major accidents are caused in a very short time, and power batteries of pure new energy vehicles cannot be separated from a vehicle body quickly or from the vehicle body to cause other injuries, so that great challenges are brought to accident handling and safety management of the new energy vehicles, in view of the current situation of battery technology development, no effective method is provided for solving the worldwide problem of thermal runaway of the batteries, and no fire extinguishing technology capable of extinguishing the fire of the battery fire appears, so how to discover the fire accidents occur as soon as possible, certain control measures are taken, buffering time is provided for manual intervention, and life safety of people is guaranteed, becomes the preferred way for solving the safety problem of the new energy automobile at present.

1. Because the national technical standard of new energy vehicles is still imperfect, and safety prevention and control facilities and technologies for a battery system are lacked, most of the existing pure electric vehicles are not provided with automatic early warning facilities, or are only provided with automatic protection devices which are the same as those of the conventional energy vehicles, and can only put out a fire after a fire happens. However, the requirement of the battery PACK is IP67 at present, the fire extinguishing agent is difficult to enter the battery PACK, no means is provided for battery fire, and the requirement of safe operation management of a pure new energy automobile is difficult to adapt.

2. The traditional fire detection system can not meet the fire early warning requirement of a power battery, can only carry out open fire stage monitoring (such as temperature sensing cables, electric heating wires and smoke temperature sensing) and can not provide extremely early warning which is necessary for the environment with high safety requirement, particularly the power battery environment.

Therefore, a set of practical and feasible intelligent monitoring, early warning and control integrated system for the new energy automobile special fire hazard is designed, the false alarm rate is reduced, the accuracy is enhanced, and the organic combination of early warning, intelligent and reliable judgment and automatic fire extinguishing of the new energy automobile fire hazard is realized, so that the system is particularly necessary.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the defects existing in the prior art and providing a power battery box protection device.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a power battery box protection device, includes automobile body, controller and battery compartment, the controller is installed to the inside main control cabinet of automobile body, the battery compartment is installed to the bottom of automobile body, fire suppression device is installed in the inside left side in battery compartment, and the inside right side in battery compartment installs three power battery boxes, the internally mounted in battery compartment has gas detector, smoke detector, temperature detector and sensor.

Preferably, the controller is in signal connection with both the fire suppression device and the sensor through a communication harness.

Preferably, the sensor is in signal connection with the gas detector, the smoke detector and the temperature detector through communication lines.

Preferably, the fire suppression device is a power battery box connected with the communication wire harness, and three power battery boxes are connected in series.

Preferably, a fire extinguishing agent outlet is arranged in the fire suppression device and is communicated with the three power battery boxes through a conveying pipe.

Preferably, the controller, the power battery box, the fire suppression device, the electric heating releaser, the gas detector, the smoke detector, the temperature detector and the sensor are all electrically connected with a power supply inside the vehicle body through built-in power lines.

The utility model provides a power battery box protection device. The method has the following beneficial effects:

(1) the power battery box protection device can realize early fire sensing, intelligent judgment, early intervention and high-efficiency fire extinguishing through the fire suppression device, protect the personal safety of electric automobiles and passenger drivers to the maximum extent, and open a life channel for driver and customer evacuation.

(2) This power battery box protection device passes through the conveyer pipe through conflagration suppression device and is connected with power battery box, makes inside its fire extinguishing agent can get into the battery package, when having solved the inside conflagration that produces of battery, the waterproof material of its surface is sealed and blocks the condition of fire extinguishing agent to adapt to pure new energy automobile safe operation management needs.

(3) This power battery box protection device uses through the cooperation of gas detector, smoke detector, temperature detector and sensor down, but real-time detection temperature sensing cable, electric heat line, cigarette temperature sensing to can provide very early warning, it is necessary to the environment that the safety requirement is high especially power battery environment, and the purpose that the loss was reached in the very early conflagration of efficient is surveyed, strives for more time for passenger and fire fighter, and is very crucial.

Drawings

Fig. 1 is a schematic view of the cross-sectional structure of the car body of the present invention.

Fig. 2 is a schematic view of the battery compartment of the present invention.

Fig. 3 is a schematic view of the overall device flow of the present invention.

In the figure: 1. a vehicle body; 2. a controller; 3. a power battery box; 4. a fire suppression device; 401. an electrothermal releaser; 5. a gas detector; 6. a smoke detector; 7. a temperature detector; 8. a sensor; 9. and a battery compartment.

Detailed Description

As shown in fig. 1-3, the utility model provides a technical solution: the utility model provides a power battery box protection device, includes automobile body 1, controller 2 and battery compartment 9, and controller 2 is installed to the inside main control cabinet of automobile body 1, and battery compartment 9 is installed to the bottom of automobile body 1, and fire suppression device 4 is installed on the inside left side of battery compartment 9, and three power battery boxes 3 are installed on the inside right side of battery compartment 9, and the internally mounted of battery compartment 9 has gas detector 5, smoke detector 6, temperature detector 7 and sensor 8.

Preferably, the controller 2 is in signal connection with the fire suppression device 4 and the sensor 8 through communication harnesses, and feeds back the working states of the three power battery boxes 3 in real time, so that the fire suppression device 4 is started to control when one power battery box fails.

Preferably, the sensor 8 is in signal connection with the gas detector 5, the smoke detector 6 and the temperature detector 7 through communication lines, and analyzes the three power battery boxes 3 in multiple aspects to judge the real-time use states of the three power battery boxes 3.

Preferably, the fire suppression device 4 passes through the communication wiring harness power battery box 3, and three power battery boxes 3 are connected in series with each other, and three power battery boxes 3 are detected one by one, but once a fire hazard occurs, the first time targeted fire extinguishing operation is performed.

Preferably, a fire extinguishing agent outlet is arranged in the fire suppression device 4 and is communicated with the three power battery boxes 3 through a conveying pipe, so that the wrapping layers on the outer surfaces of the power battery boxes 3 are reduced, and the direct impact heating points are controlled.

Preferably, the controller 2, the power battery box 3, the fire suppression device 4, the electric heat releaser 401, the gas detector 5, the smoke detector 6, the temperature detector 7 and the sensor 8 are all electrically connected with the power supply inside the vehicle body 1 through built-in power lines, real-time monitoring is achieved, the most effective and rapid fire hazard is provided, and the safety of drivers is guaranteed. 1. A vehicle body; 2. a controller; 3. a power battery box; 4. a fire suppression device; 401. an electrothermal releaser; 5. a gas detector; 6. a smoke detector; 7. a temperature detector; 8. a sensor; 9. battery compartment

When in use, the controller 2, the power battery box 3, the fire suppression device 4, the electrothermal releaser 401, the gas detector 5, the smoke detector 6, the temperature detector 7 and the sensor 8 are all electrically connected with a power supply inside the vehicle body 1 through built-in power lines, when the power battery box 3 inside the battery compartment 9 has potential safety hazards of fire, the gas detector 5, the smoke detector 6 and the temperature detector 7 simultaneously acquire data of the battery compartment 9 and transmit the data to the controller 2 through the sensor 8, wherein the controller 2 is a vehicle-mounted microcomputer which is provided with a standard range value in advance and prompts the data in a display when the range value is exceeded, a driver or a control system arranged in the controller 2 is automatically started, the controller 2 feeds back the data to the fire suppression device 4 after being started, and the fire suppression device 4 carries out electrothermal release on an internal fire extinguishing agent through the electrothermal releaser 401, and the fire hazard is eliminated at the fire burning point of the appointed power battery box 3 through the conveying pipe, and the whole process is completed.

Claims

1. The utility model provides a power battery box protection device, includes automobile body (1), controller (2) and battery compartment (9), its characterized in that: controller (2) are installed to the inside main control cabinet of automobile body (1), battery compartment (9) are installed to the bottom of automobile body (1), fire suppression device (4) are installed in the inside left side of battery compartment (9), and three power battery boxes (3) are installed on the inside right side of battery compartment (9), the internally mounted of battery compartment (9) has gas detector (5), smoke detector (6), temperature detector (7) and sensor (8).

2. The power battery box protection device according to claim 1, characterized in that: the controller (2) is in signal connection with the fire suppression device (4) and the sensor (8) through communication wiring harnesses.

3. The power battery box protection device according to claim 1, characterized in that: the sensor (8) is in signal connection with the gas detector (5), the smoke detector (6) and the temperature detector (7) through communication lines.

4. The power battery box protection device according to claim 1, characterized in that: the fire suppression device (4) is connected with the power battery boxes (3) through the communication wiring harness, and the three power battery boxes (3) are connected in series.

5. The power battery box protection device according to claim 1, characterized in that: and a fire extinguishing agent delivery outlet is arranged in the fire suppression device (4), and the fire extinguishing agent delivery outlet is communicated with the three power battery boxes (3) through a delivery pipe.

6. The power battery box protection device according to claim 1, characterized in that: the controller (2), the power battery box (3), the fire suppression device (4), the electric heating releaser (401), the gas detector (5), the smoke detector (6), the temperature detector (7) and the sensor (8) are all electrically connected with an internal power supply of the vehicle body (1) through built-in power lines.