CN211245299U

CN211245299U - Fire extinguishing device, power storage equipment and transport tool

Info

Publication number: CN211245299U
Application number: CN201921865408.XU
Authority: CN
Inventors: 卢鑫; 柏建伟
Original assignee: Evergrande New Energy Technology Shenzhen Co Ltd
Current assignee: Evergrande New Energy Technology Shenzhen Co Ltd
Priority date: 2019-10-31
Filing date: 2019-10-31
Publication date: 2020-08-14
Anticipated expiration: 2029-10-31

Abstract

The utility model relates to the technical field of fire extinguishing, and provides a fire extinguishing device, an electric storage device and a transportation tool, wherein the fire extinguishing device comprises a lower box body and an upper box cover, a storage cavity is formed between the lower box body and the upper box cover, and the upper box cover is provided with a first release hole; the upper box cover is provided with a release pipe communicated with the release hole, a slide block capable of sliding along the length direction of the release pipe is arranged in the release pipe, and a sealed cavity for storing the phase-change material is formed between the release pipe and the slide block; a fixed groove is formed in the side face, connected with the release pipe, of the sliding block, and a fastening pressure head used for being clamped into the fixed groove to limit the sliding block to move is arranged on the release pipe corresponding to the fixed groove; accumulate equipment and transport are provided with above-mentioned extinguishing device, the utility model provides a extinguishing device, accumulate equipment and transport have the reliability high and can effectively avoid the risk such as the fire extinguishing is not thorough.

Description

Fire extinguishing device, power storage equipment and transport tool

Technical Field

The utility model relates to a technical field that puts out a fire, more specifically say, relate to a extinguishing device, accumulate equipment and transport means.

Background

The existing fire extinguishing device has the following problems:

1. the triggering of the fire extinguishing device relies heavily on electronic sensors, such as temperature sensors, smoke sensors, pressure sensors, etc., which are themselves susceptible to damage, and if the electronic sensors are first on fire or are impacted, the electronic sensors themselves are first damaged, thereby causing the failure of the fire extinguishing device.

2. The electric energy of the electronic sensor of the fire extinguishing device is derived from other electric storage equipment, and the electric storage equipment is basically damaged due to external impact, so if the electric storage equipment is damaged, the electric energy supply of the fire extinguishing device cannot be guaranteed, and the fire extinguishing device is triggered to fail.

3. The fire extinguishing device driven by an electronic sensor or an electromagnetic valve and the like sprays fire extinguishing materials after being triggered, and because the electronic sensor or the electromagnetic valve is close to a spraying point, the ambient temperature of the electronic sensor or the electromagnetic valve rapidly drops, the fire extinguishing device can be automatically closed after the temperature is lower than a trigger threshold value, but the temperature of an area far away from the spraying point is still higher than a safety value or residual open fire still exists, large-area re-combustion can still be caused after a period of time, and at the moment, the fire extinguishing device is started again to extinguish fire. Such repeated cycling greatly increases the period uncontrollable risks such as flame spread out of the electrical storage equipment at a distance from the fire extinguishing device, exhaustion of fire extinguishing materials or damage to the trigger circuit.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a fire extinguishing apparatus to solve the technical problem that the fire extinguishing apparatus who exists triggers easy malfunctioning among the prior art.

In order to achieve the purpose, the technical scheme adopted by the utility model is a fire extinguishing device, which comprises a lower box body and an upper box cover arranged on the lower box body, wherein a storage cavity for storing fire extinguishing materials is formed between the lower box body and the upper box cover, and the upper box cover is provided with a first release hole communicated with the storage cavity; the phase-change material storage box is characterized in that a release pipe communicated with a first release hole is arranged on the upper box cover, a slide block is arranged in the release pipe, and a sealed cavity for storing phase-change materials is formed between the release pipe and the slide block; the sliding block slides relative to the release pipe under the volume change of the phase-change material so as to close or open the first release hole; the side that slider and release pipe meet is provided with the fixed slot on, and the position that corresponds the fixed slot on the release pipe is provided with the fastening pressure head that is arranged in the card income fixed slot in order to restrict the slider and remove.

By adopting the technical scheme, the fire extinguishing device does not need an electronic sensor to detect fire, thereby avoiding the failure of the electronic sensor caused by collision or fire, further preventing the fire from being detected and causing the triggering failure of the fire extinguishing device; meanwhile, the temperature sensitive characteristic of the phase-change material is used as the driving force for triggering the fire extinguishing device, so that the reliability is high, and the source of the driving force of the sliding block for unsealing the release hole can be effectively ensured; in addition, the anti-reverse rebounding mechanism formed by the fastening pressure head and the fixing groove can prevent the sliding block from rebounding after the release hole is unsealed, so that the release hole is sealed again, the extinguishment is suspended, and the risk of incomplete extinguishment is caused.

Furthermore, a release channel is arranged on the sliding block, and the release channel can slide to a position right facing the first release hole or a position staggered with the first release hole along with the movement of the sliding block.

Through adopting above-mentioned technical scheme, set up the release passage on the slider, can make the slider conveniently switch sealed and the first release hole of deblocking like this, the release passage has the effect of direction fire extinguishing material simultaneously for fire extinguishing material can have the directionality.

Furthermore, one side of the release pipe, which is far away from the first release hole, is provided with a second release hole corresponding to the first release hole, and the release channel can slide to the state that one end of the release channel is right opposite to the first release hole along with the movement of the slide block, and the other end of the release channel is right opposite to the second release hole.

Through the cooperation that sets up first release hole, release path and second release hole, can make fire extinguishing material pass through storage chamber, first release hole, release path and second release hole in proper order, release to the external world from the second release hole at last.

Furthermore, a sliding block elastic piece matched with the sliding block is further arranged in the release pipe, the sliding block elastic piece deviates from the sealing cavity, and the elastic direction of the sliding block elastic piece is parallel to the moving direction of the sliding block.

Further, one end of the release pipe is provided with a compression adjusting piece, and a space defined by the compression adjusting piece and the sliding block is used for accommodating the sliding block elastic piece.

Through adopting above-mentioned technical scheme, the slider can maintain the position at sealed first release hole when not firing, and this simple structure is reliable.

Further, the compression adjusting piece is a threaded piece used for adjusting the compression amount of the sliding block elastic piece, and the threaded piece is in threaded connection with the inner wall of the opening of the release pipe.

Can adjust extinguishing device through compression adjusting part and start the action of putting out a fire under what kind of temperature, it has improved extinguishing device's adjustability and suitability.

Furthermore, a fastening piece is arranged on the release pipe corresponding to the fastening pressure head, a fastening elastic piece is arranged between the fastening pressure head and the fastening piece, and the elastic force direction of the fastening elastic piece faces towards the inside of the release pipe.

Through adopting above-mentioned technical scheme, can be so that the fastening pressure head can block smoothly in the fixed slot, and then the removal of restriction slider.

Further, one end of the release tube is detachably provided with a sealing cover for sealing the sealing chamber.

Through adopting above-mentioned technical scheme, the user of being convenient for adds phase change material in toward sealed chamber.

Further, a valve is arranged on the storage tank.

By adopting the technical scheme, a user can conveniently add the fire extinguishing material into the storage cavity,

another object of the utility model is to provide an electricity storage equipment, it includes as above extinguishing device and battery package, extinguishing device set up in on the battery package.

Another object of the present invention is to provide a transportation vehicle, which is provided with the fire extinguishing apparatus as described above.

The power storage equipment and the transportation tool comprising the fire extinguishing device have the advantages of high reliability and thorough fire extinguishing.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is an exploded view of a fire extinguishing apparatus according to an embodiment of the present invention;

FIG. 2 is a cross-sectional view of the fire extinguishing apparatus according to the embodiment of the present invention when the fire extinguishing operation is not triggered;

fig. 3 is a sectional view of the fire extinguishing apparatus according to the embodiment of the present invention when the fire extinguishing operation is triggered.

The figures are numbered:

a lower box body-1; a storage chamber-11; a first release hole-12; a first sealing gasket-13; a sealed cavity-14;

an upper box cover-2;

a release pipe-3; a fastening pressure head-301; a second release hole-302; fastener-303; a fastening elastic member-304; a slide-31; a fixing groove-311; release channel-312; a compression adjustment-32; a slider elastic member-33; a baffle sheet-35; a sealing cover-36; a second sealing gasket-37.

Detailed Description

In order to make the technical problem, technical solution and advantageous effects to be solved by the present invention more clearly understood, the following description is given in conjunction with the accompanying drawings and embodiments to illustrate the present invention in further detail. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected or indirectly connected to the other element.

It will be understood that the terms "length," "upper," "lower," "inner," "outer," and the like are used in an orientation or positional relationship relative to one another as illustrated in the drawings for ease of description of the invention, and are not intended to indicate that a device or element must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the invention.

Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating relative importance or as indicating a number of technical features. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise. The following describes the specific implementation of the present invention in more detail with reference to specific embodiments:

as shown in fig. 1 to fig. 3, the embodiment of the present invention provides a fire extinguishing apparatus, which is generally applied to the fire situation of a power battery pack, and the power battery pack is generally applied to a new energy automobile, such as an electric vehicle.

The fire extinguishing apparatus includes:

a lower box body 1;

the upper box cover 2 is arranged on the lower box body 1, a storage cavity 11 for storing fire extinguishing materials is formed between the lower box body 1 and the upper box cover 2, and the upper box cover 2 is provided with a first release hole 12 communicated with the storage cavity 11;

the release pipe 3 is arranged on the upper box cover 2, the side surface of the release pipe 3 is communicated with the first release hole 12, namely the length direction of the release pipe 3 is vertical or approximately vertical to the depth direction of the first release hole 12, a slide block 31 capable of sliding along the length direction of the release pipe 3 is arranged in the release pipe 3, and a sealed cavity 14 for storing the phase change material is formed between the release pipe 3 and the slide block 31;

a fixing groove 311 is arranged on the side surface of the sliding block 31 connected with the release pipe 3, and a fastening pressure head 301 which is used for being clamped into the fixing groove 311 to limit the movement of the sliding block 31 is arranged on the release pipe 3 corresponding to the fixing groove 311;

when the phase change material is not thermally expanded, the slider 31 is positioned at the first release hole 12 while sealing the first release hole 12; and after the phase-change material expands due to heating, the slider 31 can slide under the pushing force of the phase-change material to unseal the first release hole 12.

The working principle of the fire extinguishing device of the embodiment is as follows:

when the fire extinguishing apparatus is not in a fire, the slider 31 is located at the first discharge hole 12 while sealing the first discharge hole 12, and the fire extinguishing material is sealed in the storage tank 11; when the fire extinguishing apparatus is in a fire situation, the phase change material in the sealed cavity 14 is heated and expanded, and then the expansion force of the phase change material pushes the sliding block 31 to move until the sliding block 31 unseals the first release hole 12, and then the fire extinguishing material is released from the first release hole 12 to extinguish a fire;

by adopting the technical scheme, the fire extinguishing device does not need an electronic sensor to detect fire, thereby avoiding the failure of the electronic sensor caused by collision or fire, further preventing the fire from being detected and causing the triggering failure of the fire extinguishing device; meanwhile, the temperature sensitive characteristic of the phase-change material is used as the driving force for triggering the fire extinguishing device, so that the reliability is high, and the driving force source of the sliding block 31 for unsealing the release hole can be effectively ensured; in addition, the anti-reverse rebounding mechanism formed by the fastening pressure head 301 and the fixing groove 311 can prevent the slide block 31 from rebounding after the release hole is unsealed, so that the release hole is sealed again, the fire extinguishing is stopped, and the risk of incomplete fire extinguishing is caused.

In addition, there are various ways for the slider 31 to seal the first release hole 12, including but not limited to the first way, the slider 31 is in interference fit with the release tube 3, the slider 31 is fixed at the first release hole 12 by means of the friction force between the slider 31 and the release tube 3, and the slider 31 covers the first release hole 12 to achieve the function of sealing the first release hole 12; secondly, the sliding block 31 is in clearance fit with the releasing tube 3, the sliding block 31 is maintained at the first releasing hole 12 by means of the sliding block elastic piece, and meanwhile, the sliding block 31 shields the first releasing hole 12 to achieve the effect of sealing the first releasing hole 12.

There are various ways for the slider 31 to unseal the first release hole 12, including but not limited to the first way, the slider 31 is completely dislocated from the first release hole 12 under the pushing of the expansion force of the phase change material, that is, the slider 31 no longer obstructs the first release hole 12, and at this time, the first release hole 12 is in an unsealed state, and the fire extinguishing material is released from the first release hole 12; secondly, a through hole is arranged on the sliding block 31, when the through hole moves along with the sliding block 31 to just face the first release hole 12, the first release hole 12 is in an unsealing state, and the fire extinguishing material can enter the through hole from the first release hole 12 and then be released to the outside.

In addition, the lower case body 1 and the upper case cover 2 can be integrally formed, and it can be understood that the storage case is manufactured by integrally forming the lower case body 1 and the upper case cover 2, so that the storage case has higher strength and can store more fire extinguishing materials;

of course, the lower box body 1 and the upper box cover 2 can be manufactured in a split manner, that is, the upper box cover 2 is detachably arranged on the lower box body 1, and the upper box cover 2 is covered on the lower box body 1 after the fire extinguishing material is added into the lower box body 1.

When the upper case cover 2 and the lower case 1 are manufactured separately, a first sealing gasket 13 may be disposed between the upper case cover 2 and the lower case 1. The sealing performance between the upper box cover 2 and the lower box body 1 can be improved by arranging the first sealing gasket 13, and the fire extinguishing materials are prevented from leaking from a gap between the upper box cover 2 and the lower box body 1.

In a detailed manner, the upper case cover 2 is fixed to the lower case 1 by a first screw group.

Through adopting above-mentioned technical scheme, reduced the equipment degree of difficulty between upper box cover 2 and the lower box 1, improved the equipment speed.

In particular, by providing a lower box 1, a base is also provided for connection with the equipment on which the extinguishing device is to be arranged.

The first embodiment is as follows:

as a specific implementation manner of the first embodiment of the present invention, the slider 31 is provided with the release channel 312, and the release channel 312 can slide to a position just facing the first release hole 12 or a position dislocated from the first release hole 12 along with the movement of the slider 31. Specifically, when the discharge passage 312 is slid to face the first discharge hole 12, the fastening ram 301 is just caught in the fixing groove 311, so that the slider 31 is just fixed at a position where the discharge passage 312 faces the first discharge hole 12, that is, the first discharge hole 12 can maintain the deblocking state, and the fire extinguishing material is continuously sprayed.

By providing the discharge passage 312 on the slider 31, it is possible to make the slider 31 easily seal and unseal the first discharge hole 12, and at the same time, the discharge passage 312 has a function of guiding the fire extinguishing material so that the fire extinguishing material can have directivity.

Of course, the release channel 312 can also be directly connected to the outside, so that when the slider 31 unseals the first release hole 12, the fire extinguishing material enters the release channel 312 from the storage chamber 11 through the first release hole 12, and is released from the release channel 312 to the outside, thereby achieving the fire extinguishing effect.

The length direction of the discharge channel 312 is parallel to the depth direction of the first discharge hole 12, that is, the discharge channel 312 can face the first discharge hole 12, so as to prevent the inner wall of the discharge channel 312 from blocking the spraying of the fire extinguishing material.

Further, a side of the release tube 3 away from the first release hole 12 is provided with a second release hole 302 corresponding to the first release hole 12, and the release channel 312 can slide to have one end facing the first release hole 12 and the other end facing the second release hole 302 along with the movement of the slider 31. Specifically, when the fastening ram 301 is caught in the fixing groove 311, the discharge passage 312 is simultaneously aligned with the first discharge hole 12 and the second discharge hole 302, and of course, the second discharge hole 302 communicates with the outside, and when the first discharge hole 12, the discharge passage 312, and the second discharge hole 302 communicate, the fire extinguishing material may be caused to pass through the storage chamber 11, the first discharge hole 12, the discharge passage 312, and the second discharge hole 302 in order, and finally discharged from the second discharge hole 302 to the outside.

Example two:

as a specific implementation manner of the second embodiment of the present invention, one end of the release pipe 3, which is far away from the slider 31, is provided with the compression adjusting member 32, the slider elastic member 33 is provided between the compression adjusting member 32 and the slider 31, and the elastic direction of the slider elastic member 33 is parallel to the moving direction of the slider 31. In this embodiment, the release pipe 3 is provided with a slider elastic member 33 having an opening at one end thereof, and a compression adjusting member 32 for blocking the opening is provided at the opening.

Specifically, by providing the slider elastic member 33 between the compression adjusting member 32 and the slider 31, the slider 31 maintains a state of shielding the first release hole 12 under the elastic force of the slider elastic member 33, i.e. maintains sealing the first release hole 12, and after the phase change material in the sealed cavity 14 expands due to heating, the expansion force pushes the slider 31 to overcome the elastic force of the slider elastic member 33, so that the release channel 312 on the slider 31 moves to a position facing the first release hole 12. By adopting the above technical solution, the slider 31 can be maintained at the position sealing the first release hole 12 when no fire is on, and the structure is simple and reliable.

Further, the compression adjusting member 32 is a screw member capable of adjusting a distance from the slider 31, that is, a screw member for adjusting a compression amount of the slider elastic member 33.

In addition, a blocking piece 35 is arranged between the adjusting piece and the sliding block elastic piece 33, and the blocking piece 35 is used for connecting the adjusting piece and the sliding block elastic piece 33, so that when the adjusting piece rotates, the pushing force of the adjusting piece is transmitted to the sliding block elastic piece 33 through the blocking piece 35.

Wherein, the adjusting part accessible threaded connection is on releasing pipe 3, it can change the position of adjusting part in releasing pipe 3 to rotate the adjusting part, adjust the distance between adjusting part and slider 31 so, the elasticity size of slider elastic component 33 can be adjusted through adjusting the distance between adjusting part and the slider 31, and then the required power value of promotion slider 31 when confirming phase change material inflation, the elasticity increase of slider elastic component 33, it is big more to represent required bulging force, it can start extinguishing device to need higher temperature, and the elasticity of slider elastic component 33 reduces, it is little to represent required bulging force, it just can start extinguishing device to need low temperature, therefore, can adjust extinguishing device through the adjusting part and start the action of putting out a fire under what kind of temperature.

Example three:

as a specific implementation manner of the third embodiment of the present invention, the releasing pipe 3 is provided with a fastening member 303 corresponding to the fastening pressure head 301, a fastening elastic member 304 is provided between the fastening pressure head 301 and the fastening member 303, and the elastic direction of the fastening elastic member 304 faces the inside of the releasing pipe 3. The elastic direction of the fastening elastic element 304 can be perpendicular to the moving direction of the slider 31, which is convenient for the fastening pressure head 301 to pop up towards the moving direction perpendicular to the slider 31, so that the fastening pressure head 301 can be smoothly clamped in the fixing groove 311 to limit the movement of the slider 31; the fastening pressure head 301, the fastening elastic element 304 and the fastening element 303 are integrally and fixedly connected, after the fire extinguishing is finished, the fastening pressure head 301, the fastening elastic element 304 and the fastening element 303 are integrally pulled out by applying force to the fastening element 303, the sliding block 31 is reset to seal the first release hole 12, and the device can be repeatedly used for many times; preferably, the fastener 303 is provided with a handle, and the handle is exposed out of the release pipe to facilitate force application.

In addition, one end of the release tube 3 is detachably provided with a sealing cap 36, which is used to seal the sealing chamber 14. Of course, the sealing cover 36 is detachably disposed on the release tube 3, which facilitates the assembly of the release tube 3, and the detachable sealing cover 36 also facilitates the user to add the phase change material into the sealed cavity 14.

Of course, a valve may be disposed on the sealing cover 36, and preferably the valve is a phase change material filling one-way valve, which is disposed to facilitate a user to fill the phase change material into the sealing chamber 14.

In addition, a second sealing gasket 37 is arranged between the sealing cover 36 and the releasing pipe 3, and two side surfaces of the second sealing gasket 37 are respectively clung to the sealing cover 36 and the releasing pipe 3; the second sealing gasket 37 can make the sealing cavity 14 have better sealing performance, and avoid leakage of the phase change material.

Further, a valve is arranged on the lower box body 1. Can the person of facilitating the use add fire extinguishing material toward storage chamber 11 through setting up this valve, and because the fire extinguishing material generally is the high pressure state, consequently this valve can be selected as the check valve, does benefit to the fire extinguishing material of high pressure state and pours into storage chamber 11 through this check valve.

The fire extinguishing apparatus of the above embodiment is assembled as follows:

during assembly, the upper box cover 2 and the first sealing gasket 13 are fixed on the lower box body 1 by a first screw group; the sealing cover 36 and the second sealing gasket 37 are fixed on the left side of the releasing pipe 3 in sequence by a second screw group; the slide block 31, the slide block elastic piece 33 and the blocking piece 35 are loaded into the release pipe 3 from the right opening of the release pipe 3, the right opening is blocked by the compression adjusting piece 32, and the installation is further adjusted; the fastening pressure head 301 and the fastening elastic piece 304 are arranged in corresponding holes of the releasing pipe 3 and are tightly pressed and fixed by the fastening piece 303.

Injecting the phase-change material into the sealed cavity 14 formed by the release pipe 3, the second sealing gasket 37, the sealing cover 36 and the sliding block 31 through the phase-change material filling one-way valve; the fire extinguishing material is filled into the storage cavity 11 formed by the upper box cover 2, the first sealing gasket 13 and the lower box body 1 through the fire extinguishing material filling one-way valve.

The embodiment also provides an electricity storage device, including as above extinguishing device to and the battery package, extinguishing device sets up on the battery package. In the present embodiment, the battery pack includes, but is not limited to, a power battery pack.

The present embodiment also provides a conveyance provided with the fire extinguishing apparatus as described above. In the present embodiment, the transportation means includes, but is not limited to, various kinds of automobiles including new energy automobiles, airplanes, or ships.

The power storage equipment and the transportation tool comprising the fire extinguishing device have the advantage of high fire extinguishing efficiency.

The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.

Claims

1. A fire extinguishing device comprises a lower box body and an upper box cover arranged on the lower box body, wherein a storage cavity for storing fire extinguishing materials is formed between the lower box body and the upper box cover, and a first release hole communicated with the storage cavity is formed in the upper box cover; the phase-change material storage box is characterized in that a release pipe communicated with the first release hole is arranged on the upper box cover, a slide block is arranged in the release pipe, and a sealed cavity for storing phase-change materials is formed between the release pipe and the slide block; the sliding block slides relative to the release pipe under the volume change of the phase-change material so as to close or open the first release hole; the slider with be provided with the fixed slot on the side that the release pipe meets, the release pipe is gone up to be provided with corresponding the position in fixed slot is used for the card to go into in order to restrict the fastening pressure head that the slider removed.

2. The fire extinguishing apparatus of claim 1, wherein the slider is provided with a discharge passage, and the discharge passage is slidable to a position facing the first discharge hole or a position misaligned with the first discharge hole as the slider moves.

3. The fire extinguishing apparatus according to claim 2, wherein a second discharge hole is provided on a side of the discharge duct away from the first discharge hole, and the discharge passage is slidable with movement of the slider such that one end thereof faces the first discharge hole while the other end thereof faces the second discharge hole.

4. The fire extinguishing apparatus of claim 1, wherein a slider elastic member engaged with the slider is further provided in the release pipe, the slider elastic member faces away from the sealed chamber, and an elastic direction of the slider elastic member is parallel to a moving direction of the slider.

5. The fire extinguishing apparatus of claim 4, wherein the release tube is provided at one end with a compression adjustment member, the compression adjustment member and the slider defining a space for receiving the slider resilient member.

6. The fire extinguishing apparatus of claim 5, wherein the compression adjusting member is a screw member for adjusting a compression amount of the slider elastic member, the screw member being screw-coupled to an inner wall of the opening of the release pipe.

7. The fire extinguishing apparatus according to claim 1, wherein a fastening member is provided on the release pipe corresponding to the fastening ram, and a fastening elastic member is provided between the fastening ram and the fastening member, and an elastic force of the fastening elastic member is directed toward the inside of the release pipe.

8. Fire extinguishing apparatus according to claim 1 or 6, wherein the other end of the release tube is detachably provided with a sealing cap for sealing the sealed chamber.

9. An electricity storage device, characterized by comprising a fire extinguishing apparatus as claimed in any one of claims 1 to 8 and a battery pack, the fire extinguishing apparatus being provided on the battery pack.

10. A vehicle, characterized in that it is provided with a fire extinguishing apparatus according to any one of claims 1-8.