CN218414927U - Battery thermal runaway flue gas processing device, battery shell, battery box and large-capacity battery - Google Patents
Battery thermal runaway flue gas processing device, battery shell, battery box and large-capacity battery Download PDFInfo
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- CN218414927U CN218414927U CN202220980648.XU CN202220980648U CN218414927U CN 218414927 U CN218414927 U CN 218414927U CN 202220980648 U CN202220980648 U CN 202220980648U CN 218414927 U CN218414927 U CN 218414927U
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- thermal runaway
- flue gas
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- Y—GENERAL 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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Abstract
The utility model relates to a battery thermal runaway flue gas processing device, a battery shell, a battery box and a large-capacity battery, which comprises an exhaust funnel, a plurality of exhaust nozzles, a pressure valve, an ignition switch and an ignition device, wherein the exhaust nozzles are respectively fixedly connected with the exhaust funnel to form an exhaust passage of the thermal runaway flue gas; the pressure valve and the ignition switch are arranged in the exhaust channel, the pressure valve seals the exhaust channel at normal pressure to keep the exhaust channel closed, a piston in the pressure valve is pushed by air pressure to move at high pressure, the exhaust channel is opened, and meanwhile the pressure valve presses against the ignition switch to open the ignition device; when the battery generates thermal runaway flue gas, along with the gradual increase of air pressure, a plurality of pistons in the pressure valve are sequentially pushed, the ignition switch is sequentially turned on, the ignition device is started, and the thermal runaway flue gas is ignited. The device for treating the battery thermal runaway flue gas has the advantages of simple structure, convenience in installation, safety, environmental protection and high efficiency.
Description
Technical Field
The utility model relates to a battery technology field especially relates to a battery thermal runaway flue gas processing apparatus, battery case, large capacity battery.
Background
The application field of the lithium ion battery is very wide, and the safe use of the lithium ion battery is more and more concerned with the further development of the energy storage field of the lithium ion battery in recent years. The lithium ion battery can generate combustible gas in the thermal runaway process, the combustible gas is gathered in the battery, and if the thermal runaway smoke can not be processed in time, a fire disaster is easily caused. In order to solve the problems, no solution is provided in the field of energy storage batteries at present.
CN208400933U discloses a modular power battery thermal runaway protector, characterized by: comprises an outer frame (1), a heat-insulating flame-retardant material (2), a module bottom plate (6) and a plurality of cover plates (7); the module bottom plate (6) and a plurality of cover plates are respectively arranged at two ends of the outer frame to form a flame-retardant cavity, the battery module is arranged in the flame-retardant cavity, and the plurality of cover plates are respectively covered on the plurality of battery modules in the battery box correspondingly; the heat-insulating flame-retardant material is arranged above the inner wall of the flame-retardant cavity, and the heat-insulating flame-retardant material is released in the flame-retardant cavity and acts on the plurality of battery modules. The utility model discloses can realize the fire extinguishing process of each battery module of single control, and then carry out the protection of thermal runaway from the battery module aspect, avoid the battery module thermal runaway accident.
CN208806333U discloses a lithium ion battery, which comprises: a plurality of battery cells (110); the first filtering device (120) is connected with the battery unit (110) and is used for filtering inflammable gases released after the thermal runaway of the battery unit (110); a combustion chamber (200); the pumping device (240) is connected with the combustion chamber (200) and used for inputting air to the combustion chamber (200) so that the air is mixed with the inflammable gas to form mixed gas; the second one-way gas transmission device (410) is connected between the first filtering device (120) and the combustion chamber (200), and the inflammable gas sequentially passes through the first filtering device (120) and the second one-way gas transmission device (410) and then enters the combustion chamber (200); and the control device (500) is electrically connected with the second one-way gas transmission device (410) and the gas pumping device (240) respectively. The lithium ion battery can prevent the inflammable gas from being discharged to the external environment, thereby causing environmental pollution and fire. The inflammable gas released from the battery cells can be rapidly isolated from the plurality of battery cells, ensuring the safety of the lithium ion battery.
However, when the problem of thermal runaway of the battery is solved by the above patent, the provided technical scheme has the disadvantages of complex structure, low efficiency, low safety and high cost.
Disclosure of Invention
In order to solve the problems, the utility model adopts a technical proposal that a battery thermal runaway smoke treatment device is provided, which comprises an exhaust funnel, a plurality of exhaust nozzles, a pressure valve, an ignition switch and an ignition device,
the exhaust nozzles are respectively fixedly connected with the exhaust cylinder to form an exhaust channel for thermal runaway flue gas;
the pressure valve and the ignition switch are arranged in the exhaust channel, the pressure valve seals the exhaust channel at normal pressure to keep the exhaust channel closed, a piston in the pressure valve is pushed by air pressure to move at high pressure, the exhaust channel is opened, and meanwhile the pressure valve presses against the ignition switch to open the ignition device;
when the battery generates thermal runaway flue gas, along with the gradual increase of air pressure, a plurality of pistons in the pressure valve are sequentially pushed, the ignition switch is sequentially turned on, the ignition device is started, and the thermal runaway flue gas is ignited.
Preferably, the inflator is also provided with an anti-backfire valve.
Preferably, the pressure valve is provided with a sealing gasket.
Preferably, the exhaust funnel and the exhaust nozzle are respectively and fixedly arranged on the fixed cylinder to form a gas channel, so that the thermal runaway flue gas sequentially passes through the exhaust funnel, the fixed cylinder and the exhaust nozzle.
Preferably, the pressure valve is fixedly arranged in a joint of the fixed cylinder and the exhaust nozzle, the pressure valve is provided with a protrusion, the ignition switch is arranged in the exhaust nozzle, and when a piston of the pressure valve moves, the protrusion presses the ignition switch, and the ignition device is turned on.
Preferably, the ignition device is a pulse igniter.
Preferably, the flue gas treatment device further comprises a mounting portion to be mounted on the battery case.
In order to solve the above problem, the present invention provides a battery casing, which comprises the above battery thermal runaway flue gas processing device.
Preferably, the casing further comprises a collecting pipe, one end of the collecting pipe is connected with the explosion venting port of the battery casing, and the other end of the collecting pipe is fixedly connected with the mounting part of the thermal runaway flue gas treatment device.
In order to solve the above problem, the present invention provides a high capacity battery, which includes the above battery casing.
In order to solve the above problem, the present invention provides a battery box, which comprises the above battery casing.
The beneficial effects of the utility model are that, through setting up thermal runaway flue gas processing apparatus on the battery, pass through aiutage and a plurality of exhaust nozzle release with the flue gas that produces when the battery thermal runaway, set up a plurality of pressure valves and ignition switch in the gas passage that aiutage and exhaust nozzle formed, when the atmospheric pressure of thermal runaway flue gas reachs the threshold value, loop through the exhaust nozzle and by the pressure valve is through supporting the pressure ignition switch opens ignition in proper order, lights thermal runaway flue gas, the device simple structure is small and exquisite, handles the flue gas that the battery thermal runaway produced through the device, and safety ring protects, economical and practical, efficient.
Drawings
FIG. 1 is a schematic diagram of an embodiment of a thermal runaway flue gas treatment device;
FIG. 2 is a schematic diagram of an embodiment of a thermal runaway flue gas treatment device;
FIG. 3 is a schematic diagram of an embodiment of a thermal runaway flue gas treatment device;
FIG. 4 is a schematic diagram of the structure of a battery case according to one embodiment;
fig. 5 is a schematic cross-sectional view of a battery case according to an embodiment.
Reference numerals: 41-exhaust cylinder 42-exhaust nozzle 43-ignition switch 44-ignition device 45-pressure valve 451-sealing gasket 452-protrusion 46-anti-backfire valve 47-fixed cylinder 48-mounting part 49-supporting seat 400 smoke treatment device 100 battery shell 101 explosion venting port
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
The following detailed description properly refers to the accompanying drawings to specifically disclose the battery thermal runaway flue gas treatment device, the battery shell and the battery pack of the present invention. But a detailed description thereof will be omitted. For example, detailed descriptions of already known matters and repetitive descriptions of actually the same configurations may be omitted. This is to avoid unnecessarily obscuring the following description, and to facilitate understanding by those skilled in the art. The drawings and the following description are provided for those skilled in the art to fully understand the present invention, and are not intended to limit the subject matter described in the claims.
All embodiments and alternative embodiments of the invention may be combined with each other to form new solutions, if not specifically stated. All the technical features and optional technical features of the invention can be combined with each other to form a new technical solution, if not specifically stated.
The terms "comprises" and "comprising" as used herein mean open and closed unless otherwise specified. For example, "comprising" and "comprises" may mean that other components not listed may also be included or included, or that only listed components may be included or included.
It is understood that relational terms such as "first," "second," and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions.
The above summary of the present invention is not intended to describe each disclosed embodiment or every implementation of the present invention. The following description more particularly exemplifies illustrative embodiments. At various points throughout this application, guidance is provided through a list of embodiments that can be used in various combinations. In each instance, the list is merely a representative group and should not be construed as exhaustive.
Example 1
As shown in fig. 1 and fig. 2, a battery thermal runaway flue gas processing device 400 comprises an exhaust funnel 41, a plurality of exhaust nozzles 42, an ignition switch 43, an ignition device 44, and a pressure valve 45, wherein the exhaust nozzles 42 are respectively fixedly connected with the exhaust funnel 41 to form an exhaust passage of thermal runaway flue gas;
the pressure valve 45 and the ignition switch 43 are arranged in the exhaust channel, the pressure valve 445 seals the exhaust channel at normal pressure to keep the exhaust channel closed, the piston in the pressure valve 5 is pushed by air pressure to move at high pressure, the exhaust channel is opened, and the pressure valve 45 presses the ignition switch 43 to open the ignition device 44;
when the battery generates the thermal runaway flue gas, along with the gradual increase of the air pressure, the pistons in the pressure valves 45 are sequentially pushed, the ignition switches 43 are sequentially turned on, the ignition device 44 is started, and the thermal runaway flue gas is ignited. An anti-backfire valve is also arranged in the exhaust cylinder 41. The pressure valve 45 is provided with a gasket 451. The exhaust tube 41 and the exhaust nozzle 42 are respectively and fixedly arranged on the fixed tube 47 to form a gas channel, so that the thermal runaway smoke sequentially passes through the exhaust tube 41, the fixed tube 47 and the exhaust nozzle 42.
The pressure valve 45 is fixedly arranged in the joint of the fixed cylinder 47 and the exhaust nozzle 42, the pressure valve 45 is provided with a bulge 452, the ignition switch 43 is arranged in the exhaust nozzle 42, when the piston of the pressure valve 45 moves, the bulge 452 presses the ignition switch 43, and the ignition device 44 is opened. The ignition device 44 is a pulse igniter. The ignition device 44 is fixedly mounted on the exhaust stack 41 by a support 49.
The flue gas treatment device also includes a mounting portion 48 to mount on the battery housing.
Example 2
As shown in fig. 3 and fig. 4, a battery case 100 is provided, where the battery case 100 includes a battery thermal runaway fume treatment device 400 provided in embodiment 1. The battery case is connected to the mounting portion 48 of the flue gas treatment device 400 through the explosion vent 101. When the number of the batteries is large, the manifold is connected with the batteries in parallel, and the manifold is connected with the thermal runaway flue gas treatment device through the installation part of the thermal runaway flue gas treatment device. When any single battery of the battery pack is out of control due to heat, the battery pack generates out-of-control smoke, and the smoke is discharged to the out-of-control smoke treatment device through the collecting pipe to be treated.
As shown in fig. 1 and fig. 2, a battery thermal runaway flue gas processing device 400 comprises an exhaust funnel 41, a plurality of exhaust nozzles 42, an ignition switch 43, an ignition device 44, and a pressure valve 45, wherein the exhaust nozzles 42 are respectively fixedly connected with the exhaust funnel 41 to form an exhaust passage of thermal runaway flue gas;
the pressure valve 45 and the ignition switch 43 are arranged in the exhaust passage, the pressure valve 445 seals the exhaust passage at normal pressure to keep the exhaust passage closed, and at high pressure, the piston in the pressure valve 5 is pushed by air pressure to move, the exhaust passage is opened, and the pressure valve 45 presses the ignition switch 43 to open the ignition device 44;
when the battery generates the thermal runaway flue gas, along with the gradual increase of the air pressure, the pistons in the pressure valves 45 are sequentially pushed, the ignition switches 43 are sequentially turned on, the ignition device 44 is started, and the thermal runaway flue gas is ignited. An anti-backfire valve 46 is also arranged in the exhaust cylinder 41. The pressure valve 45 is provided with a gasket 451. The exhaust tube 41 and the exhaust nozzle 42 are respectively and fixedly arranged on the fixed tube 47 to form a gas channel, so that the thermal runaway flue gas sequentially passes through the exhaust tube 41, the fixed tube 47 and the exhaust nozzle 42.
The pressure valve 45 is fixedly arranged in the connecting part of the fixed cylinder 47 and the exhaust nozzle 42, the pressure valve 45 is provided with a bulge 452, the ignition switch 43 is arranged in the exhaust nozzle 42, when the piston of the pressure valve 45 moves, the bulge 452 presses the ignition switch 43, and the ignition device 44 is opened. The ignition device 44 is a pulse igniter. The ignition device 44 is fixedly mounted on the exhaust funnel 41 by a support base 49.
The flue gas treatment device also includes a mounting portion 48 to mount on the battery housing.
Example 3
This implementation provides a battery box comprising the flue gas treatment device described in example 1.
Example 4
This embodiment provides a high capacity battery comprising the flue gas treatment device described in example 1.
All possible combinations of the technical features in the above embodiments may not be described for the sake of brevity, but should be considered as being within the scope of the present disclosure as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.
Claims (11)
1. A battery thermal runaway flue gas treatment device is characterized by comprising an exhaust funnel, a plurality of exhaust nozzles, a pressure valve, an ignition switch and an ignition device,
the exhaust nozzle is respectively and fixedly connected with the exhaust cylinder to form an exhaust channel of thermal runaway smoke;
the pressure valve and the ignition switch are arranged in the exhaust passage, the pressure valve comprises a piston, and the pressure valve seals the exhaust passage at normal pressure to keep the exhaust passage closed; when the pressure valve is under high pressure, a piston in the pressure valve is pushed by air pressure to move, the exhaust channel is opened, and meanwhile, the pressure valve is abutted against the ignition switch to open the ignition device;
when the battery generates thermal runaway flue gas, along with the gradual increase of air pressure, a plurality of pistons in the pressure valve are sequentially pushed, the ignition switch is sequentially turned on, the ignition device is started, and the thermal runaway flue gas is ignited.
2. The battery thermal runaway flue gas treatment device of claim 1, wherein an anti-tempering valve is further disposed in the exhaust funnel.
3. The battery thermal runaway flue gas treatment device of claim 1, wherein the pressure valve is provided with a gasket.
4. The battery thermal runaway flue gas processing apparatus according to claim 1, wherein the exhaust funnel and the exhaust nozzle are respectively fixedly arranged on a fixed cylinder to form a gas channel, so that the thermal runaway flue gas sequentially passes through the exhaust funnel, the fixed cylinder and the exhaust nozzle.
5. The battery thermal runaway flue gas processing device according to claim 4, wherein the pressure valve is fixedly arranged in a joint of the fixed cylinder and the exhaust nozzle, the pressure valve is provided with a protrusion, the ignition switch is arranged in the exhaust nozzle, and when a piston of the pressure valve moves, the protrusion presses against the ignition switch, and the ignition device is turned on.
6. The battery thermal runaway flue gas treatment device of claim 1, wherein the ignition device is a pulse igniter.
7. The battery thermal runaway flue gas treatment device of claim 1, further comprising a mounting portion to mount on a battery housing.
8. A battery housing comprising the battery thermal runaway flue gas treatment device of any of claims 1-7.
9. The battery shell according to claim 8, wherein the shell further comprises a collecting pipe, one end of the collecting pipe is connected with the explosion venting port of the battery shell, and the other end of the collecting pipe is fixedly connected with the mounting part of the thermal runaway smoke treatment device.
10. A battery box characterized by comprising the battery thermal runaway flue gas treatment device of any one of claims 1 to 7.
11. A high capacity battery comprising the battery thermal runaway flue gas treatment device of any of claims 1-7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220980648.XU CN218414927U (en) | 2022-04-26 | 2022-04-26 | Battery thermal runaway flue gas processing device, battery shell, battery box and large-capacity battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220980648.XU CN218414927U (en) | 2022-04-26 | 2022-04-26 | Battery thermal runaway flue gas processing device, battery shell, battery box and large-capacity battery |
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| Publication Number | Publication Date |
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| CN218414927U true CN218414927U (en) | 2023-01-31 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202220980648.XU Active CN218414927U (en) | 2022-04-26 | 2022-04-26 | Battery thermal runaway flue gas processing device, battery shell, battery box and large-capacity battery |
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| Country | Link |
|---|---|
| CN (1) | CN218414927U (en) |
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- 2022-04-26 CN CN202220980648.XU patent/CN218414927U/en active Active
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