CN111001109A - Extinguishing device, battery box and electric automobile - Google Patents
Extinguishing device, battery box and electric automobile Download PDFInfo
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- CN111001109A CN111001109A CN201911097064.7A CN201911097064A CN111001109A CN 111001109 A CN111001109 A CN 111001109A CN 201911097064 A CN201911097064 A CN 201911097064A CN 111001109 A CN111001109 A CN 111001109A
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- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C3/00—Fire prevention, containment or extinguishing specially adapted for particular objects or places
- A62C3/16—Fire prevention, containment or extinguishing specially adapted for particular objects or places in electrical installations, e.g. cableways
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- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C3/00—Fire prevention, containment or extinguishing specially adapted for particular objects or places
- A62C3/07—Fire prevention, containment or extinguishing specially adapted for particular objects or places in vehicles, e.g. in road vehicles
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- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C35/00—Permanently-installed equipment
- A62C35/02—Permanently-installed equipment with containers for delivering the extinguishing substance
- A62C35/10—Containers destroyed or opened by flames or heat
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- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C37/00—Control of fire-fighting equipment
- A62C37/50—Testing or indicating devices for determining the state of readiness of the equipment
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
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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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- Public Health (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Battery Mounting, Suspending (AREA)
Abstract
The invention relates to the technical field of electric automobile fire fighting, and discloses a fire extinguishing device, a battery box and an electric automobile, which comprise: the temperature-sensing pressure-resistant pipe body is internally provided with a pipe cavity for containing a fire extinguishing agent and inert gas; and the sealing structures are respectively arranged at the end parts of the temperature-sensing pressure-resistant pipe body and seal the end parts of the temperature-sensing pressure-resistant pipe body so as to construct the pipe cavity into a closed pipe cavity, wherein when the temperature of the temperature-sensing pressure-resistant pipe body is greater than or equal to a set temperature, the temperature-sensing pressure-resistant pipe body can soften at a heated part and construct a fire extinguishing agent jet orifice. The fire extinguishing device has the advantages of effectively extinguishing the fire of the battery in the battery box and avoiding the fire of the whole electric automobile.
Description
Technical Field
The invention relates to the technical field of electric automobile fire fighting, in particular to a fire extinguishing device, a battery box and an electric automobile.
Background
With the rapid development of the global electric automobile industry and the rapid growth of the industrial scale, almost all electric automobile fire accidents are related to the power battery along with more and more electric automobile fire accidents, and the fire generally occurs from the inside of the battery and initially spreads to the battery box, so that the whole automobile fire accidents are generated. Therefore, extinguishing the electric vehicle fire in the battery box stage is most effective for suppressing the electric vehicle fire.
At present, electric automobile fire extinguishing devices in the market are mostly improved according to fire extinguishing devices in a transformer box and a closed computer room. Numerous electric automobile accidents show, when the battery in the battery box broke away hot out of control, the condition that extinguishing device appears not moving takes place occasionally, simultaneously, when electric automobile stopped operating, the battery takes place hot out of control, owing to do not have start signal, fire extinguishing system can not start to put out a fire.
Disclosure of Invention
Technical problem to be solved
The invention aims to provide a fire extinguishing device, a battery box and an electric automobile, and aims to solve the technical problems that in the prior art, when the electric automobile stops running, the battery is out of control due to thermal runaway, and due to the fact that no starting signal exists, a fire extinguishing system cannot start fire extinguishing, and the electric automobile burns integrally.
(II) technical scheme
In order to solve the above technical problem, the present invention provides a fire extinguishing apparatus, a battery box and an electric vehicle, including: the temperature-sensing pressure-resistant pipe body is internally provided with a pipe cavity for containing a fire extinguishing agent and inert gas; and the sealing structures are respectively arranged at the end parts of the temperature-sensing pressure-resistant pipe body and seal the end parts of the temperature-sensing pressure-resistant pipe body so as to construct the pipe cavity into a closed pipe cavity, wherein when the temperature of the temperature-sensing pressure-resistant pipe body is greater than or equal to a set temperature, the temperature-sensing pressure-resistant pipe body can soften at a heated part and construct a fire extinguishing agent jet orifice.
The temperature-sensing pressure-resistant pipe body is made of polyamide or temperature-sensing pressure-resistant plastic.
The sealing structure comprises a sealing pipe body embedded at the end part of the temperature and pressure sensing pipe body, wherein a plurality of flexible sealing elements are arranged on the sealing pipe body at intervals along the axial direction.
The sealing structure also comprises an annular connector which is connected with the sealing pipe body on the corresponding side and is arranged on the outer side of the end part of the temperature and pressure sensing pipe body.
The fire extinguishing device further comprises an electromagnetic valve, and the electromagnetic valve is in threaded connection with the annular connecting body arranged at one end of the temperature and pressure sensing pipe body.
The fire extinguishing device further comprises a spray head used for spraying the fire extinguishing agent in the closed pipe cavity, and the spray head is connected with the electromagnetic valve.
The fire extinguishing device further comprises a pressure sensor for detecting the pressure in the closed pipe cavity, and the pressure sensor is connected with the annular connecting body arranged at the other end of the temperature and pressure sensing pipe body.
According to a second aspect of the present invention, there is also provided a battery box, comprising a box body and a cover body arranged on the box body, and further comprising the fire extinguishing apparatus.
Wherein a recess is formed on a surface of the cover facing the case, and the fire extinguishing device is embedded in the recess.
According to a third aspect of the invention, an electric vehicle is also provided, which comprises the battery box.
(III) advantageous effects
Compared with the prior art, the fire extinguishing device provided by the invention has the following advantages:
the fire extinguishing apparatus of the present invention can still exert its fire extinguishing function in the case of high temperature and failure of all of the fire detecting means, the fire extinguishing control means, and the starting means. Specifically, once the power battery is on fire, when the temperature of the pipe wall of the temperature-sensing pressure-resistant pipe body reaches the set temperature, the pipe wall of the temperature-sensing pressure-resistant pipe body can be softened at a heated part, the temperature in the pipe cavity in the temperature-sensing pressure-resistant pipe body can be gradually increased along with the continuous combustion of a power battery in the battery box, the fire extinguishing agent in the pipe cavity can be continuously gasified along with the gradual increase of the temperature, so that the gas pressure in the tube cavity can be continuously raised, and under the condition that the gas pressure in the tube cavity is continuously raised, the pressure applied to the heated and softened part towards the outer side is gradually increased, and finally, a fire extinguishing agent jet orifice is formed at the heated and softened part, after the fire extinguishing agent jet orifice is formed, the fire extinguishing agent in the pipe cavity can be jetted out through the fire extinguishing agent jet orifice under the action of pressure and released into the battery box, so that the purpose of suppressing fire is achieved.
Drawings
Fig. 1 is a schematic view showing the overall structure of a fire extinguishing apparatus according to an embodiment of the present invention.
Reference numerals:
1: a temperature-sensing pressure-resistant pipe body; 11: a lumen; 111: closing the tube cavity; 12: a fire suppressant spray port; 2: a sealing structure; 21: sealing the tube body; 22: a flexible seal; 23: an annular connector; 3: an electromagnetic valve; 4: a spray head; 5: a pressure sensor.
Detailed Description
The following detailed description of embodiments of the present invention is provided in connection with the accompanying drawings and examples. The following examples are intended to illustrate the invention but are not intended to limit the scope of the invention.
In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.
As shown in fig. 1, the fire extinguishing apparatus is schematically shown to include a temperature-sensitive pressure-resistant pipe body 1 and a sealing structure 2. The fire extinguishing device can be applied to a battery box (not shown in the figures).
A tube cavity 11 for containing a fire extinguishing agent and an inert gas is formed inside the temperature-sensitive pressure-resistant pipe body 1.
The sealing structures 2 are respectively arranged at the ends of the temperature-sensing pressure-resistant pipe body 1 and seal the ends of the temperature-sensing pressure-resistant pipe body 1 to construct the pipe cavity 11 as a sealed pipe cavity 111, wherein when the temperature of the temperature-sensing pressure-resistant pipe body 1 is greater than or equal to a set temperature, the temperature-sensing pressure-resistant pipe body 1 softens at a heated part and constructs a fire extinguishing agent injection port 12. In particular, the fire extinguishing apparatus of the present invention can still exert its fire extinguishing function in the case of high temperature and failure of the fire detecting apparatus (not shown), the fire extinguishing control apparatus (not shown) and the starting apparatus (not shown) of the electric vehicle. Specifically, once the power battery is on fire, when the temperature of the tube wall of the temperature-sensing pressure-resistant tube body 1 of the present invention reaches a set temperature, the tube wall of the temperature-sensing pressure-resistant tube body 1 is softened at the heated portion, and as the power battery in the battery box is continuously burned, the temperature in the tube cavity 11 in the temperature-sensing pressure-resistant tube body 1 is gradually increased, and as the temperature is gradually increased, the fire extinguishing agent in the tube cavity 11 is continuously gasified, so that the gas pressure in the tube cavity 11 is also continuously increased, and under the condition that the gas pressure in the tube cavity 11 is continuously increased, the outward pressing force applied to the heated and softened portion is gradually increased, and finally the fire extinguishing agent injection port 12 is formed at the heated and softened portion, and after the fire extinguishing agent injection port 12 is formed, the fire extinguishing agent in the tube cavity 11 is injected through the fire extinguishing agent injection port 12 under the pressure and released into the battery box, so as to achieve the purpose of suppressing fire.
It should be noted that the pressure of the inert gas filled in the lumen 11 is preferably 1.6Mpa, wherein the inert gas is preferably N2(Nitrogen). It will be appreciated that other inert gases, such as argon, helium, etc., may be used in addition to nitrogen.
It should be noted that the fire extinguishing agent used in the present application is usually in a liquid or gaseous state, and can be vaporized by heating to increase the gas pressure in the sealed cavity 111. The "set temperature" is in the range of 80 ℃ or higher and 100 ℃ or lower.
In a normal case, the fire detection device (not shown), the fire extinguishing control device (not shown) and the starting device (not shown) start extinguishing the fire when the temperature in the battery box is between 80 ℃ and 100 ℃.
According to the application, under the condition that a fire detection device (not shown in the figure), a fire extinguishing control device (not shown in the figure) and a starting device (not shown in the figure) are all failed, once the temperature of the temperature-sensing pressure-resistant pipe body 1 reaches a set temperature, the temperature-sensing pressure-resistant pipe body can be softened at a heated part, and finally, a fire extinguishing agent injection port 12 is formed so as to inject the fire extinguishing agent in the pipe cavity 11, and the purpose of suppressing fire is achieved.
This embodiment adopts the external diameter to be 10mm (millimeter), and length is 1400mm (millimeter), and the wall thickness is 0.9mm (millimeter) body. In addition, the specific parameter characteristics of the temperature-sensing pressure-resistant pipe body 1 can be adjusted correspondingly according to the following parameters: the outer diameter of the tube body can be determined according to the space size of the battery box used in actual engineering.
The heated softening temperature of the temperature-sensing pressure-resistant pipe body 1 is mainly influenced by the working pressure in the pipe, namely, the larger the working pressure is, the lower the starting rupture temperature is, and conversely, the smaller the working pressure is, the higher the starting rupture temperature is. The wall thickness of the temperature-sensing pressure-resistant pipe body 1 is mainly determined by double factors of starting temperature and working pressure, and the wall thickness can be calculated according to material parameters after the working pressure and the starting temperature are determined. Therefore, the invention can adjust the tube parameters to achieve the purpose of using in battery boxes with different box shapes.
The fire extinguishing agent used in the invention can adopt common fire extinguishing agents such as hexafluoropropane, heptafluoropropane or perfluorohexanone.
To extinguishThe fire agent is perfluorohexanone for example, and inert gas N is filled in the temperature-sensing pressure-resistant pipe body 12When the temperature rises to 100 ℃, the heated and softened part of the temperature-sensing pressure-resistant pipe body 1 is broken, and the internal fire extinguishing agent is sprayed out instantly, so that the initial pre-loading pressure in the pipe cavity 11 is 1.6MPa (megapascal). It should be noted that the kinds of fire extinguishing agents and the inert gas filled therein are not limited to those listed in the present embodiment.
The fire extinguishing apparatus of the present invention can be applied to the following places, in addition to the battery box for fire extinguishing: microwave machine room, decimetric wave machine room, meter wave machine room, power transformation and distribution room and uninterrupted power supply room in the broadcast and television transmitting tower, program control exchange machine room, control room and signaling transfer point room of communication system, control room of power plant, electronic equipment room, computer room, relay room, power transformation and distribution room, cable crossing, dense and middle joint; in addition, the fire extinguishing device can also be applied to a power transformation and distribution cabinet, an elevator control cabinet, a wire cable groove with a groove box or a bridge; and can also be applied to special or important cabinet equipment with a relatively closed shell, various diesel engines, automobiles, trains, ship engines, various mobile equipment, lifting equipment, elevator control cabinets and the like.
In a preferred embodiment of the present application, the temperature-sensing pressure-resistant pipe body 1 is made of polyamide or temperature-sensing pressure-resistant plastic. Specifically, after the temperature-sensing pressure-resistant pipe body 1 is made of the above materials, the pipe wall of the temperature-sensing pressure-resistant pipe body 1 has the temperature-sensing pressure-resistant characteristic, and when the temperature reaches or exceeds the relative temperature-bearing range (referred to as the above-mentioned set temperature), the heated portion of the temperature-sensing pressure-resistant pipe body 1 is rapidly softened and forms the fire extinguishing agent injection port 12 under the action of the pressure inside the pipe cavity 11.
As shown in fig. 1, in a preferred embodiment of the present application, the sealing structure 2 includes a sealing pipe body 21 embedded at an end of the temperature and pressure sensing pipe body 1, wherein a plurality of flexible sealing members 22 are provided at intervals in an axial direction on the sealing pipe body 21. Specifically, the provision of the flexible seal member 22 can prevent the seal pipe body 21 from coming into direct hard contact with the temperature-sensitive pressure-resistant pipe body 1, that is, from being worn away from each other.
The provision of the flexible seal 22 can also enhance the sealing performance between the seal pipe body 21 and the temperature-sensitive pressure-resistant pipe body 1.
In one particular embodiment, the flexible seal 22 may be a rubber gasket, a rubber seal, or the like.
As shown in fig. 1, in a preferred embodiment of the present application, the sealing structure 2 further includes an annular connecting body 23 connected to the corresponding side of the sealing pipe body 21 and disposed outside the end of the temperature-sensitive pressure-resistant pipe body 1. The annular connector 23 can be welded to the sealing tube 21 or integrally formed therewith.
As shown in fig. 1, in a preferred embodiment of the present application, the fire extinguishing apparatus further comprises a solenoid valve 3, and the solenoid valve 3 is threadedly coupled to the annular connecting body 23 provided at one end of the temperature-sensitive pressure-resistant pipe body 1. In particular, the mounting and dismounting of the solenoid valve 3 and the annular connecting body 23 is facilitated by means of a threaded connection.
In a preferred embodiment of the present application, as shown in fig. 1, the fire extinguishing apparatus further comprises a spray head 4 for spraying the fire extinguishing agent in the closed pipe cavity 111, wherein the spray head 4 is connected with the solenoid valve 3. In particular, the nozzle 4 may be an existing fan-shaped low-pressure atomizer. The specific structure and operation of the spray head 4 are well known to those skilled in the art and will not be described in detail herein for the sake of brevity.
After the nozzle 4 is connected with the electromagnetic valve 3, the nozzle 4 is adjusted to a certain angle and is arranged at the corner of the battery box, and at the moment, the fire extinguishing agent sprayed out by the nozzle 4 can cover the inner space of the whole battery box.
The specific working conditions of the invention are as follows:
case 1: the electromagnetic valve 3 works independently, the temperature of the battery box rises slowly or the battery is out of control and is far away from the temperature-sensing pressure-resistant pipe body 1, and the starting condition of the temperature-sensing pressure-resistant pipe body 1 is not met, at the moment, other detection devices of the battery box are intact, corresponding signals can be transmitted to the control system in time, the control system transmits the signals to the electromagnetic valve 3, the electromagnetic valve 3 is started, and the fire extinguishing agent can be sprayed out from the spray head 4 to extinguish fire.
Case 2: the temperature-sensing pressure-resistant pipe body 1 works independently, under the condition that the electromagnetic valve 3 cannot work normally due to the fact that a detection device fails and a control system fails, at the moment, a battery in a battery box is out of control thermally, the temperature in the box rises, a certain part of the temperature-sensing pressure-resistant pipe body 1 reaches a starting temperature, the part is softened by heating and can form a fire extinguishing agent jet orifice 12, and a fire extinguishing agent is sprayed out through the fire extinguishing agent jet orifice 12 to extinguish fire.
Case 3: the electromagnetic valve 3 and the temperature-sensing pressure-resistant pipe body 1 jointly act. This situation mainly occurs when the solenoid valve 3 can work normally and the battery thermal runaway is particularly severe, so that the temperature-sensing pressure-resistant pipe body 1 can reach the starting temperature instantly. In this case, the electromagnetic valve 3 and the temperature-sensitive pressure-resistant pipe body 1 operate simultaneously, and the fire extinguishing agent is sprayed to extinguish the fire. Therefore, the invention has the advantages that when the temperature is low (lower than the temperature of the rupture of the pipe body), the electromagnetic valve 3 controls the fire extinguishing; the electromagnetic valve 3 and the temperature-sensing pressure-resistant pipe body 1 jointly act to extinguish fire at high temperature (equal to or higher than the temperature of the pipe body rupture).
In a preferred embodiment of the present application, as shown in fig. 1, the fire extinguishing apparatus further comprises a pressure sensor 5 for detecting the pressure in the sealed chamber 111, and the pressure sensor 5 is connected to the annular connecting body 23 provided at one of the other ends of the temperature-sensitive pressure-resistant pipe body 1. Specifically, the pressure sensor 5 is additionally arranged, so that the pressure in the temperature-sensing pressure-resistant pipe body 1 can be monitored, and the effects of monitoring the condition of the fire extinguishing agent and the temperature in the battery box are achieved. It should be noted that, because the temperature in the battery box and the pressure in the temperature-sensing pressure-resistant pipe body 1 are in a certain corresponding relationship, that is, one pressure value corresponds to one temperature value, the pressure sensor 5 can acquire the pressure value in the temperature-sensing pressure-resistant pipe body 1, so that the corresponding temperature value in the battery box can be indirectly acquired.
In addition, when the present invention has a problem of sealability, etc., the pressure is transmitted through the pressure sensor 5 at the first time.
According to a second aspect of the present invention, there is also provided a battery box, comprising a box body (not shown in the figures) and a cover body arranged on the box body, and further comprising the fire extinguishing apparatus described above.
In a preferred embodiment of the application, a recess is formed on the surface of the cover facing the housing, in which recess the fire extinguishing device engages. The invention overcomes the defect that the existing fire extinguishing system special for the electric automobile is only arranged outside the battery box and occupies a larger space inside the battery bin. The fire extinguishing device is integrally tubular, can be arranged on the cover body of the battery box and can also be arranged on the box wall of the box body of the battery box, thereby effectively saving the internal space of the battery compartment.
According to a third aspect of the invention, an electric vehicle is also provided, which comprises the battery box.
In summary, the fire extinguishing apparatus of the present invention can still exert its fire extinguishing function in the case of high temperature and failure of the fire detection apparatus, the fire extinguishing control apparatus, and the starting apparatus. Specifically, once the power battery is on fire, when the temperature of the tube wall of the temperature-sensing pressure-resistant tube body 1 of the present invention reaches a set temperature, the tube wall of the temperature-sensing pressure-resistant tube body 1 is softened at the heated portion, and as the power battery in the battery box is continuously burned, the temperature in the tube cavity 11 in the temperature-sensing pressure-resistant tube body 1 is gradually increased, and as the temperature is gradually increased, the fire extinguishing agent in the tube cavity 11 is continuously gasified, so that the gas pressure in the tube cavity 11 is also continuously increased, and under the condition that the gas pressure in the tube cavity 11 is continuously increased, the outward pressing force applied to the heated and softened portion is gradually increased, and finally the fire extinguishing agent injection port 12 is formed at the heated and softened portion, and after the fire extinguishing agent injection port 12 is formed, the fire extinguishing agent in the tube cavity 11 is injected through the fire extinguishing agent injection port 12 under the pressure and released into the battery box, so as to achieve the purpose of suppressing fire.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (10)
1. A fire suppression apparatus, comprising:
the temperature-sensing pressure-resistant pipe body is internally provided with a pipe cavity for containing a fire extinguishing agent and inert gas; and
and the sealing structures are respectively arranged at the end parts of the temperature-sensing pressure-resistant pipe body and seal the end parts of the temperature-sensing pressure-resistant pipe body so as to construct the pipe cavity into a closed pipe cavity, wherein when the temperature of the temperature-sensing pressure-resistant pipe body is greater than or equal to a set temperature, the temperature-sensing pressure-resistant pipe body can soften at a heated part and construct a fire extinguishing agent jet orifice.
2. The fire extinguishing apparatus according to claim 1, wherein the temperature-sensitive pressure-resistant pipe body is made of a material including polyamide or temperature-sensitive pressure-resistant plastic.
3. The fire extinguishing apparatus of claim 1, wherein the sealing structure comprises a sealing pipe body embedded at an end of the temperature and pressure sensing pipe body, wherein a plurality of flexible sealing members are provided on the sealing pipe body at intervals in an axial direction.
4. The fire extinguishing apparatus according to claim 3, wherein the sealing structure further comprises an annular connecting body connected to the sealing pipe body on the corresponding side and disposed outside an end of the temperature-sensitive pressure-resistant pipe body.
5. The fire extinguishing apparatus according to claim 4, further comprising a solenoid valve, wherein the solenoid valve is threadedly coupled to the annular connector provided at one end of the temperature-sensing pressure-resistant pipe body.
6. The fire extinguishing apparatus according to claim 5, further comprising a spray head for spraying the fire extinguishing agent in the sealed pipe chamber, the spray head being connected to the solenoid valve.
7. The fire extinguishing apparatus according to claim 4, further comprising a pressure sensor for detecting a pressure in the sealed pipe chamber, the pressure sensor being connected to the annular connecting body provided at one of the other ends of the temperature-sensitive pressure-resistant pipe body.
8. A battery box comprising a box body and a cover body provided on the box body, characterized by further comprising the fire extinguishing apparatus according to any one of claims 1 to 7.
9. The battery box according to claim 8, wherein a recess is formed on a surface of the cover facing the box body, and the fire extinguishing device is fitted in the recess.
10. An electric vehicle characterized by comprising the battery box according to any one of claims 8 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911097064.7A CN111001109A (en) | 2019-11-11 | 2019-11-11 | Extinguishing device, battery box and electric automobile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911097064.7A CN111001109A (en) | 2019-11-11 | 2019-11-11 | Extinguishing device, battery box and electric automobile |
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| CN111001109A true CN111001109A (en) | 2020-04-14 |
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| CN201911097064.7A Pending CN111001109A (en) | 2019-11-11 | 2019-11-11 | Extinguishing device, battery box and electric automobile |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| EP3936196A4 (en) * | 2020-05-13 | 2022-10-05 | Ilsun System Co., Ltd | Fire extinguishing apparatus having fire prediction function |
| RU217815U1 (en) * | 2023-03-03 | 2023-04-19 | Общество С Ограниченной Ответственностью "Полимеркомпозитные Баллоны" (Ооо "Пкб") | AUTONOMOUS GAS EXTINGUISHING DEVICE |
| CN116459484A (en) * | 2023-03-21 | 2023-07-21 | 广西电网有限责任公司防城港供电局 | Fire extinguishing agent composition, preparation method of fire extinguishing composition and fire extinguishing device |
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| CN103825059A (en) * | 2014-02-13 | 2014-05-28 | 浙江吉利控股集团有限公司 | Heat management and automatic-fire extinguishing system for vehicle battery |
| CN107416085A (en) * | 2017-04-24 | 2017-12-01 | 浙江绿源电动车有限公司 | Electric car |
| CN207401039U (en) * | 2017-10-09 | 2018-05-25 | 深圳市鸿嘉利消防科技有限公司 | Battery case automatic extinguishing device |
| CN108744344A (en) * | 2018-04-27 | 2018-11-06 | 中国科学技术大学 | A kind of fire-fighting system of lithium system power battery |
| DE202019102367U1 (en) * | 2019-04-26 | 2019-05-03 | Edgar Roberto Solis Perez | Fire suppression system for battery systems |
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| EP3936196A4 (en) * | 2020-05-13 | 2022-10-05 | Ilsun System Co., Ltd | Fire extinguishing apparatus having fire prediction function |
| RU217815U1 (en) * | 2023-03-03 | 2023-04-19 | Общество С Ограниченной Ответственностью "Полимеркомпозитные Баллоны" (Ооо "Пкб") | AUTONOMOUS GAS EXTINGUISHING DEVICE |
| CN116459484A (en) * | 2023-03-21 | 2023-07-21 | 广西电网有限责任公司防城港供电局 | Fire extinguishing agent composition, preparation method of fire extinguishing composition and fire extinguishing device |
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