CN219497913U - Battery pack with fire extinguishing device - Google Patents

Abstract

The utility model discloses a battery pack with a fire extinguishing device, which comprises a frame, wherein a limit frame is arranged on one side of the inside of the frame, an air inlet pipe is arranged in the limit frame, a plurality of battery modules are uniformly arranged between the limit frame and the frame, a limit shell is arranged among the battery modules, the limit shell is communicated with the air inlet pipe through a pipeline, air outlet holes are uniformly formed in the limit shell, the temperature in the battery pack is monitored through a temperature sensor, then an electromagnetic valve is opened through a controller to enable inert gas in a gas cylinder to be discharged into the battery pack, the temperature in the battery pack is reduced through the characteristic that the volume is rapidly expanded and a large amount of heat is absorbed when the inert gas is sprayed, and meanwhile, the original air in the battery pack is extruded out, so that the rapid fire extinguishing work is achieved.

Description

Battery pack with fire extinguishing device

Technical Field

The utility model relates to the technical field of battery packs, in particular to a battery pack with a fire extinguishing device.

Background

Battery packs are used in various fields as indispensable for the work and life of modern people. Especially, the new energy automobile industry is caused, but the potential safety hazard caused by the battery pack is frequent at present, and most of reasons are caused by the ignition of the battery pack.

The Chinese patent is granted, the publication number is CN212085092U, the battery pack with the fire extinguishing function comprises a battery unit, a cooling liquid tank filled with cooling liquid, a cooling loop communicated with the cooling liquid tank, a driving device for enabling the cooling liquid to flow, and a fire extinguishing pipeline communicated with the cooling loop; the fire suppression circuit includes a fusible shower pipe spanning the battery cell; a control switch is arranged at the joint of the fire extinguishing pipeline and the cooling loop; the control switch controls the cooling liquid tank to alternatively communicate the cooling circuit with the fire extinguishing pipeline.

The novel battery pack is characterized in that the easily-fused spray pipe is additionally arranged on the original cooling loop of the battery pack, then the fire extinguishing work is carried out through moisture, but the mode of extinguishing fire by using moisture spraying is very easy to cause the damage of other parts inside the battery pack caused by soaking in water, so that after the flame is extinguished, the subsequent maintenance cost is increased, and the short circuit among a plurality of battery packs is easily caused by using moisture.

For this purpose, a battery pack with a fire extinguishing device is proposed.

Disclosure of Invention

The utility model aims to provide a battery pack with a fire extinguishing device, so as to solve the problems in the background art.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the battery pack with the fire extinguishing device comprises a frame, wherein a limiting frame is arranged on one side of the interior of the frame, an air inlet pipe is arranged in the limiting frame, a plurality of battery modules are uniformly arranged between the limiting frame and the frame, limiting shells are uniformly arranged among the plurality of battery modules, the limiting shells are communicated with the air inlet pipe through pipelines, and air outlet holes are uniformly formed in the limiting shells;

the utility model discloses a gas-liquid separator, including frame, air inlet pipe, placing shell is installed to one side of frame, placing shell's internally mounted has the gas cylinder, the gas cylinder links to each other with the intake pipe, the solenoid valve is installed to the one end that the intake pipe is close to the gas cylinder.

Preferably: the inside of placing the casing still installs the controller, controller and solenoid valve electric connection.

Preferably: and a plurality of limiting plates are uniformly arranged on two sides of the limiting shell.

Preferably: and a temperature sensor is arranged above one side of the limit shell and is electrically connected with the controller.

Preferably: cover plates are arranged on the upper surface and the lower surface of the frame.

Preferably: an exhaust gap is arranged between the cover plate and the frame.

Preferably: inert gas is arranged inside the gas cylinder.

Compared with the prior art, the utility model has the beneficial effects that: the temperature inside the battery pack is monitored through the temperature sensor, then the electromagnetic valve is opened through the controller to enable inert gas inside the gas cylinder to be discharged into the battery pack, the temperature inside the battery pack is reduced through the characteristic that the volume is rapidly expanded and a large amount of heat is absorbed when the inert gas is sprayed, and meanwhile the original air inside the battery pack is extruded, so that the rapid fire extinguishing work is achieved.

Meanwhile, the inert gas used by the device can be easily dissipated after fire extinguishment is completed, the other parts of the battery pack cannot be affected, and the situation that other parts are damaged due to the penetration of moisture is avoided.

Drawings

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 is a schematic view of the structure of the cover plate of the present utility model;

fig. 3 is a schematic view showing the structure of the battery module according to the present utility model after the battery module is removed;

FIG. 4 is a schematic view of the position structure of an air inlet pipe according to the present utility model;

fig. 5 is a schematic view of the structure of the inner part of the placement housing according to the present utility model.

In the figure: 1. a frame; 2. a cover plate; 3. a limiting frame; 4. a battery module; 5. a limit housing; 6. placing a shell; 7. a limiting plate; 8. a temperature sensor; 9. an air outlet hole; 10. an air inlet pipe; 11. an electromagnetic valve; 12. a gas cylinder; 13. and a controller.

Description of the embodiments

The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model.

Examples

Referring to fig. 1-5, the present utility model provides a technical solution: the battery pack with the fire extinguishing device comprises a frame 1, wherein a limit frame 3 is arranged on one side of the interior of the frame 1, an air inlet pipe 10 is arranged in the limit frame 3, a plurality of battery modules 4 are uniformly arranged between the limit frame 3 and the frame 1, a limit shell 5 is arranged among the plurality of battery modules 4, the limit shell 5 is communicated with the air inlet pipe 10 through a pipeline, and air outlet holes 9 are uniformly formed in the limit shell 5;

one side of the frame 1 is provided with a placing shell 6, the inside of the placing shell 6 is provided with a gas cylinder 12, the gas cylinder 12 is connected with a gas inlet pipe 10, and one end of the gas inlet pipe 10, which is close to the gas cylinder 12, is provided with a solenoid valve 11.

Inside the gas cylinder 12 is inert gas, and when the inert gas is sprayed, the volume expands rapidly and absorbs a large amount of heat, so that the temperature inside the battery pack can be reduced, and simultaneously, the release can also rapidly extrude the air inside the battery pack.

As shown in fig. 5: a controller 13 is also arranged in the placement shell 6, and the controller 13 is electrically connected with the electromagnetic valve 11; through the arrangement, the opening work of the electromagnetic valve 11 can be controlled more conveniently, so that inert gas in the gas cylinder 12 is released, and the fire extinguishing work is realized.

As shown in fig. 3 and 4: a plurality of limiting plates 7 are uniformly arranged on two sides of the limiting shell 5; through the above setting, limiting plate 7 can restrict the position between the battery module 4 to protect temperature sensor 8's position, can make simultaneously to have certain gap between venthole 9 and the battery module 4, be convenient for gaseous emission.

As shown in fig. 4 and 5: a temperature sensor 8 is arranged above one side of the limit shell 5, and the temperature sensor 8 is electrically connected with a controller 13; with the above arrangement, the temperature sensor 8 can check the temperature inside in real time, and when the temperature is high, the electromagnetic valve 11 can be opened by the controller 13 so that the gas is discharged.

As shown in fig. 1: cover plates 2 are arranged on the upper surface and the lower surface of the frame 1, and an exhaust gap is arranged between the cover plates 2 and the frame 1; through the arrangement, when inert gas is discharged, the air in the original interior can be more conveniently extruded.

Working principle: when the device is used, the temperature inside the battery pack is monitored through the temperature sensor 8 in real time, after the internal temperature is too high, the temperature sensor 8 sends information to the inside of the controller 13, the controller 13 receives the information and then controls the electromagnetic valve 11 to be opened, so that inert gas inside the gas cylinder 12 enters the inside of the gas inlet pipe 10 and is discharged into the inside of the plurality of limiting shells 5, the inside of the battery pack can be quickly filled with the inert gas through the gas outlet holes 9 on the limiting shells 5, and meanwhile, the original air inside the battery pack is extruded, so that flame is extinguished more quickly, after the flame is extinguished, the cover plate 2 is opened, the inert gas can be quickly discharged, and replacement or maintenance work can be conveniently carried out.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims (7)

1. Battery pack with extinguishing device, comprising a frame (1), characterized in that: a limiting frame (3) is arranged on one side of the inside of the frame (1), an air inlet pipe (10) is arranged in the limiting frame (3), a plurality of battery modules (4) are uniformly arranged between the limiting frame (3) and the frame (1), a limiting shell (5) is arranged between the battery modules (4), the limiting shell (5) is communicated with the air inlet pipe (10) through a pipeline, and air outlet holes (9) are uniformly formed in the limiting shell (5);

one side of the frame (1) is provided with a placing shell (6), the inside of the placing shell (6) is provided with a gas cylinder (12), the gas cylinder (12) is connected with a gas inlet pipe (10), and one end, close to the gas cylinder (12), of the gas inlet pipe (10) is provided with a solenoid valve (11).

2. A battery pack with fire extinguishing apparatus according to claim 1, characterized in that: the inside of placing casing (6) still installs controller (13), controller (13) and solenoid valve (11) electric connection.

3. A battery pack with fire extinguishing apparatus according to claim 1, characterized in that: a plurality of limiting plates (7) are uniformly arranged on two sides of the limiting shell (5).

4. A battery pack with fire extinguishing apparatus according to claim 1, characterized in that: and a temperature sensor (8) is arranged above one side of the limit shell (5), and the temperature sensor (8) is electrically connected with a controller (13).

5. A battery pack with fire extinguishing apparatus according to claim 1, characterized in that: cover plates (2) are arranged on the upper surface and the lower surface of the frame (1).

6. A battery pack with fire suppression apparatus as recited in claim 5, wherein: an exhaust gap is arranged between the cover plate (2) and the frame (1).

7. A battery pack with fire extinguishing apparatus according to claim 1, characterized in that: inert gas is arranged inside the gas cylinder (12).