CN111617406A

CN111617406A - Energy storage device

Info

Publication number: CN111617406A
Application number: CN202010468332.8A
Authority: CN
Inventors: 赵恒�; 王祺; 张俊峰; 李先军
Original assignee: Hubei Jiandun Fire Technology Co Ltd
Current assignee: Hubei Jiandun Fire Technology Co Ltd
Priority date: 2020-05-28
Filing date: 2020-05-28
Publication date: 2020-09-04

Abstract

The invention relates to energy storage equipment which comprises a cabinet body, a battery unit and a fire extinguishing device, wherein the battery unit and the fire extinguishing device are arranged in the cabinet body. The fire extinguishing device comprises a fire extinguishing container, a fire extinguishing generating agent, a coolant, a starting part, a pressure relief element and a flame extinguishing and silencing part. The fire extinguishing container has a fire extinguishing agent chamber and a coolant chamber, and is provided with a nozzle. The fire extinguishing generating agent is arranged in the fire extinguishing agent chamber, and the coolant is arranged in the coolant chamber; the starting component is used for igniting the fire extinguishing agent. The pressure relief element is sealed at the nozzle. The flame-extinguishing and noise-reducing component comprises a body, and the body is arranged in the fire-extinguishing container so that a cavity is formed in the fire-extinguishing container. Because the fire extinguishing container is internally provided with the flame extinguishing and silencing part, the space of the inner cavity of the fire extinguishing container is increased by the flame extinguishing and silencing part, so that the pressurizing time of the inner space of the fire extinguishing container and the time for the fire extinguishing substances to start spraying are increased, the contact time of the fire extinguishing substances and the coolant is increased, the fire extinguishing substances are fully contacted with the coolant, and the spraying temperature of the fire extinguishing substances is reduced.

Description

Energy storage device

Technical Field

The invention relates to the technical field of energy storage, in particular to energy storage equipment.

Background

With the massive construction of 5G base stations, the energy storage equipment is used as the basic guarantee of the operation of the base stations, and the safety problem of the energy storage equipment is paid extensive attention. In the process of energy storage equipment application, due to weather reasons, energy storage cabinet heat dissipation problems, battery core aging, overcharge and the like, the energy storage equipment may generate a battery unit spontaneous combustion phenomenon, so that the operation of a base station is influenced. In order to solve the problem, an aerosol fire extinguishing device is arranged in the energy storage equipment. However, when a fire occurs, the aerosol in the aerosol fire extinguishing device is sprayed faster, so that the temperature of the nozzle of the fire extinguishing device is higher, and even a fire spraying phenomenon may occur.

Disclosure of Invention

Therefore, it is necessary to provide an energy storage device, in which the fire extinguishing device can reduce the temperature of the fire extinguishing material, and the fire extinguishing effect is good.

The utility model provides an energy storage equipment, includes the cabinet body, locates internal battery cell of cabinet and extinguishing device, extinguishing device includes:

the fire extinguishing container is provided with a fire extinguishing agent chamber and a coolant chamber and is provided with a nozzle;

the fire extinguishing generating agent is arranged in the fire extinguishing agent chamber;

a coolant disposed in the coolant chamber;

an initiating component for igniting the fire extinguishing agent;

the pressure relief element is sealed at the nozzle;

the flame-extinguishing and noise-reducing component comprises a body, wherein the body is arranged in the fire extinguishing container, so that a cavity for fire extinguishing substances released by the fire extinguishing generating agent to pass through is formed in the fire extinguishing container.

In one embodiment, the body is provided with a channel, the side part of the body is provided with a flame and sound extinguishing hole, and a gap is formed between the body and the fire extinguishing container.

In one embodiment, the outer surfaces of the two ends of the body are respectively provided with a first mounting part and a second mounting part which are used for contacting with the inner surface of the fire extinguishing container in a protruding mode.

In one embodiment, the flame-extinguishing sound holes are provided in plurality, and the flame-extinguishing sound holes are arranged at the side part of the body at intervals.

In one embodiment, the peripheral wall of the flame-extinguishing hole is provided with a flow guide part, and the flow guide direction of the flow guide part faces the outside of the body.

In one embodiment, the coolant chamber is disposed adjacent to the nozzle, and the flame suppression and sound attenuation member is disposed between the fire extinguishing agent chamber and the coolant chamber;

or the flame-extinguishing and sound-attenuating component is arranged on one side of the coolant chamber close to the nozzle;

or the flame-extinguishing and sound-attenuating part is arranged at the position of the nozzle.

In one embodiment, the flame-extinguishing and sound-deadening member further comprises a first screen, and the first screen is arranged in the channel of the body;

or the first separation net is arranged at one end of the channel far away from the fire extinguishing agent chamber.

In one embodiment, the fire extinguishing apparatus further comprises a second screen disposed between the fire extinguishing agent chamber and the coolant chamber.

In one embodiment, the energy storage device further comprises a third screen arranged inside the fire extinguishing container, the third screen being arranged on top of the coolant chamber.

In one embodiment, the fire extinguishing container is provided with an outlet hole.

In one embodiment, the energy storage device further comprises a mesh plate movably disposed between the fire suppressant chamber and the coolant chamber; the body is an elastic piece, one end of the elastic piece is pressed against the fire extinguishing agent chamber, and the other end of the elastic piece is pressed against the screen plate;

or the mesh plate is movably arranged at the top of the coolant chamber; the body is an elastic piece, one end of the elastic piece is abutted against the screen plate, and the other end of the elastic piece is abutted against the inner surface of the fire extinguishing container.

In one embodiment, the starting component is a heat-sensitive wire, the heat-sensitive wire is arranged in the cabinet body, and one end of the heat-sensitive wire is in contact with the fire extinguishing agent.

In one embodiment, the heat-sensitive wire is wound around each battery cell in an S-shape; alternatively, the heat-sensitive wire is vertically arranged at one side of each battery unit.

In one embodiment, the energy storage device further comprises a controller and a temperature sensing line arranged in the cabinet body, and the temperature sensing line is electrically connected with the controller.

In one embodiment, the temperature sensing line bypasses each battery unit in an S shape; or, the temperature sensing line is vertically arranged at one side of each battery unit.

Above-mentioned energy storage equipment, when energy storage equipment appears the thermal runaway, starting component automatic ignition extinguishing agent, the redox reaction takes place rapidly for extinguishing agent self, and the oxygen combustion that provides through in the container of putting out a fire releases the material of putting out a fire to produce a large amount of heats. When the air pressure in the fire extinguishing container reaches a certain value, the fire extinguishing substance released by the fire extinguishing generating agent breaks through the pressure relief element and is sprayed to the outside from the nozzle. Compare in traditional container of putting out a fire, owing to be equipped with flame extinction amortization part in the container of putting out a fire, flame extinction amortization part's setting has increased the space of the inside cavity of container of putting out a fire, can increase the pressurized time of the container inner space of putting out a fire like this and the time that the material of putting out a fire begins to spout to increase the contact time of the material of putting out a fire and coolant, make the material of putting out a fire fully contact with the coolant, reduce the temperature of spouting of the material of putting out a fire.

Drawings

Fig. 1 is a first schematic structural diagram of an energy storage device according to an embodiment of the present invention;

fig. 2 is a schematic structural diagram of an energy storage device according to an embodiment of the invention;

FIG. 3 is a first schematic structural diagram of an energy storage device according to another embodiment of the present invention;

FIG. 4 is a second schematic structural diagram of an energy storage device according to another embodiment of the present invention;

FIG. 5 is a schematic view of a fire suppression apparatus according to an embodiment of the present invention;

FIG. 6 is a cross-sectional view of the fire suppression apparatus shown in FIG. 5 taken along A-A;

FIG. 7 is a schematic view of the flame arresting and sound attenuating element of the fire suppression apparatus shown in FIG. 6;

FIG. 8 is a schematic view of the flame arresting and sound attenuating element of the fire suppression apparatus of FIG. 7 from another perspective;

FIG. 9 is a cross-sectional view of a fire suppression apparatus according to another embodiment of the present invention;

fig. 10 is a sectional view of a fire extinguishing apparatus according to another embodiment of the present invention.

Reference numerals:

10. the fire extinguishing device comprises a cabinet body, 20, a battery unit, 30, a fire extinguishing device, 31, a fire extinguishing container, 311, a fire extinguishing agent chamber, 312, a coolant chamber, 313, a shell, 3131, a wire outlet, 314, a cover body, 3141, a nozzle, 32, a starting part, 321, a thermosensitive wire, 33, a flame extinguishing and noise reducing part, 331, a body, 3311, a channel, 3312, a first installation part, 3313, a second installation part, 332, a flame extinguishing and noise reducing hole, 3321, a flow guide part, 333, a first screen, 334, an elastic part, 335, a screen plate, 34, a second screen, 35, a third screen, 36, a sealing ring, 40, a controller, 50 and a temperature sensing wire.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein.

Referring to fig. 1, 5 and 6, fig. 1 shows a first structural schematic diagram of an energy storage device in an embodiment of the invention, fig. 5 shows a first structural schematic diagram of a fire extinguishing apparatus in an embodiment of the invention, and fig. 6 shows a cross-sectional view along a-a of the fire extinguishing apparatus shown in fig. 5. The energy storage device provided by an embodiment of the invention comprises a cabinet 10, a battery unit 20 arranged in the cabinet 10 and a fire extinguishing apparatus 30. The fire extinguishing apparatus 30 includes a fire extinguishing container 31, a fire extinguishing agent, a coolant, an actuating member 32, a pressure relief element, and a flame suppressing and silencing member 33. The fire extinguishing container 31 has a fire extinguishing agent chamber 311 and a coolant chamber 312, and the fire extinguishing container 31 is provided with a spout 3141. The fire extinguishing agent is arranged in the fire extinguishing agent chamber 311, and the coolant is arranged in the coolant chamber 312; the initiating component 32 is used to ignite the fire suppression generating agent. The pressure relief element is sealed at the spout 3141. The flame-extinguishing sound-deadening member 33 includes a body 331, and the body 331 is provided in the fire extinguishing container 31 so that a cavity through which a fire extinguishing substance released by burning of the fire extinguishing agent passes is formed in the fire extinguishing container 31.

In the energy storage device, a fire extinguishing device 30 is installed in the cabinet 10. When the energy storage equipment is out of control thermally, the starting component 32 automatically ignites the fire extinguishing generating agent, the fire extinguishing generating agent rapidly generates oxidation-reduction reaction, and the fire extinguishing substance is released through the combustion of oxygen provided in the fire extinguishing container 31, and generates a large amount of heat. When the air pressure in the fire extinguishing container 31 reaches a certain value, the fire extinguishing substance released by the combustion of the fire extinguishing agent breaks through the pressure relief element and is ejected from the nozzle 3141 to the outside. Compare in traditional fire extinguishing container, owing to be equipped with flame extinction amortization part 33 in the fire extinguishing container 31, flame extinction amortization part 33's setting has increased the space of the inside cavity of fire extinguishing container 31, can increase the pressurized time of the inside space of fire extinguishing container 31 and the time that the fire extinguishing substance began to spout like this to increase the contact time of fire extinguishing substance and coolant, make fire extinguishing substance and coolant fully contact, reduce the temperature of spouting of fire extinguishing substance.

It should be noted that, by sealing the pressure relief element at the nozzle 3141, when the air pressure inside the fire extinguishing container 31 does not reach a preset value, the fire extinguishing container 31 is always in a sealed state, so that the contact time between the fire extinguishing substance and the coolant can be increased, the fire extinguishing substance is fully contacted with the coolant, and the spraying temperature of the fire extinguishing substance is reduced.

Specifically, in this embodiment, the pressure relief element is a pressure relief diaphragm, and the pressure relief diaphragm is sealed at the position of the spout 3141.

In one embodiment, the fire extinguishing generating agent is an aerosol fire extinguishing agent; of course, a mixture of the aerosol fire extinguishing agent and other fire extinguishing agents is also possible. The aerosol fire extinguishing agent has the characteristics of no pollution, no damage, easy cleaning and the like, and is widely applied to various fire extinguishing places. When a fire occurs, the flame ignites the starting member 32, thereby igniting the aerosol fire extinguishing agent, which itself rapidly undergoes an oxidation-reduction reaction and is rapidly combusted by oxygen supplied from the fire extinguishing container 31. The combusted aerosol fire extinguishing agent passes through the coolant chamber 312, and the coolant in the coolant chamber 312 absorbs its heat to form an aggregated aerosol fire extinguishing substance, which is sprayed from the nozzle 3141 to the outside.

Further, the aerosol fire extinguishing agent is in one or more of powder, granule, tablet or block. It should be understood that when the aerosol fire extinguishing agent is in the form of powder, granule, tablet or block, the specific surface area per unit mass of the aerosol fire extinguishing agent is increased or the density per unit volume is decreased, so that once the aerosol fire extinguishing agent is ignited, the combustion will quickly diffuse, and a large amount of fire extinguishing substances are instantaneously released in a deflagration manner, thereby increasing the spraying speed and achieving a better fire extinguishing effect.

In one embodiment, referring to fig. 6 and 7, fig. 6 shows a cross-sectional view along a-a of the fire extinguishing apparatus shown in fig. 5, and fig. 7 shows a structural schematic view of a flame suppressing and sound attenuating member of the fire extinguishing apparatus shown in fig. 6. The body 331 has a passage 3311, a flame and sound absorbing hole 332 is formed in a side portion of the body 331, and a gap is formed between the body 331 and the fire extinguishing container 31. It should be noted that, when the fire extinguishing agent in the fire extinguishing container 31 is ignited, and the fire extinguishing agent is a powder or small block-shaped agent, the fire extinguishing agent burns violently, and a large amount of fire extinguishing substances are generated at the moment of burning, and simultaneously a large amount of heat is generated, and a large sound is generated after the fire extinguishing agent is started. Through setting up flame sound-absorbing hole 332 at body 331, after the fire extinguishing generating agent was ignited, partial high-pressure gas in the fire extinguishing container 31 passed through flame sound-absorbing hole 332 and got into in the clearance between fire extinguishing container 31 and body 331 for gas gets into a relatively great space, can slow down gaseous expanding speed like this, reaches the effect of noise reduction.

Further, referring to fig. 6 and 7, a first mounting portion 3312 and a second mounting portion 3313 are respectively protruded on outer surfaces of both ends of the body 331 so that a gap is formed between a side portion of the body 331 and the fire extinguishing container 31. Alternatively, the first mounting portion 3312 may be looped around one end of the body 331 and the second mounting portion 3313 may be looped around the other end of the body 331. When installed, the first and

second installation parts

3312 and 3313 are brought into contact with the inner surface of the fire extinguishing container 31, respectively, to install the flame arresting and noise reducing member 33 in the fire extinguishing container 31. Because a gap is formed between the side part of the body 331 and the fire extinguishing container 31, high-pressure gas generated after the fire extinguishing propellant is combusted can enter the gap from the flame extinguishing hole 332, so that the high-pressure gas enters a relatively large space, the expansion speed of the gas can be reduced, and the effect of reducing noise is achieved.

In one embodiment, referring to fig. 6 and 7, the outer surfaces of the first mounting portion 3312 and the second mounting portion 3313 are provided with a sealing ring 36, so that the flame suppressing and noise reducing member 33 can be stably mounted in the fire extinguishing container 31 through the sealing ring 36, thereby preventing the flame suppressing and noise reducing member 33 from moving in the fire extinguishing container 31 and affecting the flame suppressing and noise reducing effects.

In one embodiment, referring to fig. 6 and 7, the plurality of flame quenching holes 332 are provided, and the plurality of flame quenching holes 332 are spaced around the side of the body 331. Through being equipped with a plurality of flame extinguishing sound holes 332 at the lateral part ring of body 331, the high-pressure gas that the burning of fire extinguishing generating agent produced can get into the clearance between fire extinguishing container 31 and body 331 from flame extinguishing sound holes 332 fast for high-pressure gas gets into a relatively great space, can slow down gaseous expanding speed like this, reaches the effect of noise reduction.

Specifically, in the present embodiment, six flame-extinguishing holes 332 are provided, and the six flame-extinguishing holes 332 are arranged around the side portion of the body 331 at equal intervals. Of course, in other embodiments, four, five, seven or more, etc. flame suppression holes 332 may be provided, and the number of flame suppression holes 332 is not particularly limited herein.

Further, referring to fig. 8, fig. 8 is a schematic structural view of another view of the flame-extinguishing and sound-attenuating member of the fire extinguishing apparatus shown in fig. 7. The peripheral wall of the flame-quenching hole 332 has a flow guide portion 3321, and the flow guide portion 3321 has a flow guide direction toward the outside of the body 331. It can be understood that the hole wall of the flame-quenching hole 332 has a certain thickness, and the flow guide part 3321 is located on the hole wall of the flame-quenching hole 332; the guide portion 3321 is an inclined surface. Because the peripheral wall of the flame suppression hole 332 is provided with the flow guide part 3321, the flow guide part 3321 can play a role in flow guide, and the linear motion of the air flow in the fire extinguishing container 31 is realized, so that the air in the fire extinguishing container 31 can rapidly enter a gap between the fire extinguishing container 31 and the body 331 from the flame suppression hole 332, and the noise reduction effect is improved.

Specifically, the section of the flame-extinguishing hole 332 is trapezoidal, so that high-pressure gas in the fire extinguishing container 31 can rapidly enter a relatively large space from the flame-extinguishing hole 332, and the noise reduction effect is good. Of course, in other embodiments, the cross-section of the flame trap holes 332 may also be circular, elliptical, etc.

In one embodiment, referring to fig. 6 and 7, the coolant chamber 312 is disposed adjacent to the nozzle 3141, and the flame suppressing and sound attenuating member 33 is disposed between the fire extinguishing agent chamber 311 and the coolant chamber 312. It can be understood that, when the fire extinguishing agent in the fire extinguishing container 31 is ignited, a large amount of gas is generated at the moment of combustion of the fire extinguishing agent; the gas rapidly enters a relatively large space from the position of the flame-extinguishing hole 332 to slow down the expansion speed of the gas, so that the effect of reducing noise is achieved. Meanwhile, the fire extinguishing substance burned by the fire extinguishing agent enters the coolant chamber 312 through the passage 3311 of the flame-extinguishing and noise-reducing member 33, the coolant in the coolant chamber 312 cools the fire extinguishing substance, and the cooled fire extinguishing substance is sprayed out through the spray ports 3141, thereby reducing the spray temperature of the fire extinguishing substance.

In another embodiment, the coolant chamber 312 is disposed adjacent to the nozzle 3141, and the flame trap silencing member 33 is disposed on a side of the coolant chamber 312 adjacent to the nozzle 3141. Alternatively, the flame trap noise damping member 33 is provided at the position of the spout 3141. It can be understood that the fire extinguishing agent in the fire extinguishing container 31 is ignited, the fire extinguishing substance and the gas after the fire extinguishing agent is combusted enter the cooling chamber, and the coolant in the cooling chamber cools the fire extinguishing substance. The cooled fire extinguishing substance is sprayed out from the nozzle 3141 through the channel 3311 of the flame-extinguishing and sound-deadening member 33, and the gas generated by the combustion of the fire extinguishing agent enters a relatively large space through the flame-extinguishing and sound-deadening holes 332 to slow down the expansion speed of the gas and achieve the effect of reducing noise.

In one embodiment, referring to fig. 6 and 7, the flame suppressing and silencing part 33 further includes a first screen 333, and the first screen 333 is disposed in the passage 3311 of the body 331. Alternatively, the first screen 333 is provided at an end of the passage 3311 remote from the fire suppressant compartment 311. It should be noted that the grid density of the first screen 333 may be set according to actual requirements. By arranging the first screen 333 inside or at the end of the passage 3311, the first screen 333 can reduce flame, thereby reducing the occurrence of fire-spraying phenomenon in the process of extinguishing fire by the fire extinguishing apparatus 30. When the flame-extinguishing and noise-reducing member 33 is disposed between the fire extinguishing agent chamber 311 and the coolant chamber 312, the first screen 333 divides the internal space of the fire extinguishing container 31 into the fire extinguishing agent chamber 311 and the coolant chamber 312, thereby preventing the coolant from entering the fire extinguishing agent chamber 311 and affecting the fire extinguishing effect.

It should be noted that, referring to fig. 6 and 7, if the first screen 333 is disposed in the channel 3311 of the body 331, the first screen 333 divides the channel 3311 of the body 331 into two spaces. The flame-extinguishing hole 332 is provided in the side of the body 331 near the fire extinguishing agent chamber 311, and the coolant is placed in the space of the body 331 far from the fire extinguishing agent chamber 311.

In one embodiment, referring to fig. 6, the flame suppression and noise reduction device further comprises a second screen 34, and the second screen 34 is disposed between the fire extinguishing agent chamber 311 and the coolant chamber 312. It should be noted that the grid density of the second screen 34 can be set according to actual requirements. The second separation net 34 is arranged between the fire extinguishing agent chamber 311 and the coolant chamber 312, on one hand, the second separation net 34 can compress the fire extinguishing generating agent, and the fire extinguishing generating agent is prevented from shaking to generate noise in the using process; on the other hand, because the fire extinguishing agent reacts violently in the combustion process, the second screen 34 can block the fragments generated by the fire extinguishing agent in the combustion process, so that the fragments and the like are prevented from blocking the flame-extinguishing holes 332, and the flame-extinguishing and sound-damping effects are ensured.

In one embodiment, referring to FIG. 6, the fire suppression container 31 further includes a third screen 35, the third screen 35 being disposed on top of the coolant chamber 312. It is understood that if the flame-extinguishing and sound-attenuating member 33 is disposed between the fire extinguishing agent chamber 311 and the coolant chamber 312, the third screen 35 is correspondingly disposed at the coolant chamber 312 near the nozzle 3141. If the flame trap and noise reduction member 33 is provided at the position of the nozzle 3141, the third screen 35 is provided between the coolant chamber 312 and the flame trap and noise reduction member 33. Generally, the coolant is one or more of granular, flake, or block-shaped coolant, which is loosely placed in the coolant chamber 312, and the coolant may be shaken during use, thereby generating noise. In this embodiment, the third screen 35 is disposed on the top of the coolant chamber 312, so that the third screen 35 can compress the coolant, and the coolant is prevented from shaking during use to generate noise.

In another embodiment, in conjunction with fig. 9, fig. 9 is a cross-sectional view of a fire suppression apparatus in accordance with another embodiment of the present invention. The flame trap and noise deadening member 33 may be an elastic member 334. A screen 335 is movably provided in the fire extinguishing container 31, and the screen 335 is provided between the fire extinguishing agent chamber 311 and the coolant chamber 312. One end of the elastic member 334 is pressed against the fire extinguishing agent chamber 311, and the other end of the elastic member 334 is pressed against the screen plate 335. When the fire extinguishing container 31 is used, a fire extinguishing agent is placed in the fire extinguishing agent chamber 311, and a screen plate 335 is placed in the coolant chamber 312; the elastic member 334 is in a compressed state by the gravity of the coolant. The fire extinguishing agent is ignited, the fire extinguishing substance released by the combustion of the fire extinguishing agent enters the coolant chamber 312, and the coolant in the coolant chamber 312 cools the fire extinguishing substance, thereby consuming part of the coolant, and gradually reducing the coolant. During the consumption of the coolant, the elastic member 334 is gradually extended and the space of the cavity inside the fire extinguishing container 31 is increased. Therefore, the pressurization time of the inner space of the fire extinguishing container 31 and the time for starting spraying the fire extinguishing substances can be increased, so that the contact time of the fire extinguishing substances and the coolant is increased, the fire extinguishing substances are fully contacted with the coolant, and the spraying temperature of the fire extinguishing substances is reduced. And after the fire extinguishing generating agent is ignited, part of high-pressure gas enters a relatively large space, so that the expansion speed of the gas can be reduced, and the effect of reducing noise is achieved.

Referring to fig. 10, fig. 10 is a sectional view of a fire extinguishing apparatus according to another embodiment of the present invention. Of course, in other embodiments, the resilient member 334 may be disposed on a side of the coolant chamber 312 proximate the spout 3141. Specifically, the mesh plate 335 is movably provided on the top of the coolant chamber 312; one end of the elastic member 334 is pressed against the screen plate 335, and the other end of the elastic member 334 is pressed against the inner surface of the fire extinguishing container 31. During the consumption of the coolant, the elastic member 334 is gradually extended and the space of the cavity inside the fire extinguishing container 31 is increased. Therefore, the pressurization time of the inner space of the fire extinguishing container 31 and the time for starting spraying the fire extinguishing substances can be increased, so that the contact time of the fire extinguishing substances and the coolant is increased, the fire extinguishing substances are fully contacted with the coolant, and the spraying temperature of the fire extinguishing substances is reduced. And after the fire extinguishing generating agent is ignited, part of high-pressure gas enters a relatively large space, so that the expansion speed of the gas can be reduced, and the effect of silencing is achieved. In addition, the screen plate 335 is arranged above the coolant chamber 312, so that the screen plate 335 can compress the coolant, and the coolant is prevented from shaking to generate noise in the use process.

In one embodiment, referring to fig. 6, the fire extinguishing container 31 includes a housing 313 and a cover 314, wherein the housing 313 and the cover 314 are screwed together. The spout 3141 is provided on the top of the cap 314. Specifically, the open end of the housing 313 is provided with an external thread, the end of the cover 314 away from the spout 3141 is provided with an internal thread, and the housing 313 and the cover 314 are detachably connected through the thread. Specifically in this embodiment, the housing 313 is a cylindrical structure.

In one embodiment, referring to FIG. 2, the fire extinguishing container 31 is provided with a wire outlet 3131. It can be understood that, since the fire extinguishing container 31 is provided with the outlet hole 3131, the heat-sensitive wire 321 or the ignition head can be accessed to the inside of the fire extinguishing agent chamber 311 through the outlet hole 3131, so that the heat-sensitive wire 321 or the ignition head is brought into contact with the fire extinguishing agent. When a fire occurs, the flame ignites the electric ignition head or the heat-sensitive wire 321, so that the fire extinguishing device 30 is started to realize the purpose of extinguishing the fire.

Specifically, referring to fig. 6, the coolant chamber 312 is disposed close to the housing 313, and the fire extinguishing agent chamber 311 is disposed away from the housing 313. The outlet hole 3131 is correspondingly disposed at the bottom of the housing 313, so that the heat-sensitive wire 321 or the ignition head can be conveniently accessed into the fire-extinguishing agent chamber 311, and the cost is saved.

In one embodiment, the starting member 32 is a heat-sensitive wire 321, the heat-sensitive wire 321 is disposed in the cabinet 10, and one end of the heat-sensitive wire 321 is in contact with the fire extinguishing agent. When the energy storage device is out of control thermally, the flame in the energy storage device ignites the thermal wire 321, and then ignites the fire extinguishing agent. The coolant cools the fire extinguishing substance released by the combustion of the fire extinguishing agent, and the cooled fire extinguishing substance is sprayed from the fire extinguishing container 31 to the battery unit 20 through the nozzle 3141, so that the interior of the energy storage device can be extinguished.

Further, referring to fig. 1 and fig. 2, fig. 1 shows a first structural diagram of an energy storage device according to an embodiment of the present invention, and fig. 2 shows a second structural diagram of an energy storage device according to an embodiment of the present invention. The thermo-sensitive wire 321 bypasses each battery cell 20 in an S-shape. It is understood that the battery unit 20 is provided in plurality, and the plurality of battery units 20 are arranged along the height direction of the cabinet 10; the heat-sensitive wires 321 are wound around the upper, side and lower surfaces of each battery cell 20 in an S-shape. Since the thermo-sensitive wire 321 bypasses each battery cell 20 in an S-shape, when thermal runaway occurs in any one of the battery cells 20 in the energy storage device, a flame can rapidly ignite the thermo-sensitive wire 321 and activate the fire extinguishing apparatus 30 to extinguish a fire. Of course, in other embodiments, the heat-sensitive wire 321 may be vertically disposed at one side of each battery cell 20.

In another embodiment, please refer to fig. 3, fig. 3 shows a schematic structural diagram of an energy storage device according to another embodiment of the present invention. The energy storage device further comprises a controller 40 and a temperature sensing line 50 arranged in the cabinet body 10, wherein the temperature sensing line 50 is electrically connected with the controller 40. The temperature sensing line 50 detects the internal temperature of the energy storage cabinet in real time, and when the energy storage equipment is out of control due to heat, the internal temperature of the energy storage equipment is gradually increased. When the internal temperature of the energy storage cabinet reaches a preset value, the temperature sensing line 50 sends the signal to the controller 40, the controller 40 controls the starting part 32 to work, and the fire extinguishing substance generated by decomposition is sprayed out of the battery unit 20 from the fire extinguishing container 31 through the nozzle 3141 to extinguish fire of the energy storage equipment, so that serious accident damage caused by thermal runaway is avoided.

Further, referring to fig. 3 and 4, fig. 3 shows a first structural diagram of an energy storage device according to another embodiment of the present invention, and fig. 4 shows a second structural diagram of an energy storage device according to another embodiment of the present invention. The temperature-sensitive wire 50 bypasses each battery cell 20 in an S-shape. It is understood that the battery unit 20 is provided in plurality, and the plurality of battery units 20 are arranged along the height direction of the cabinet 10; the temperature-sensitive wires 50 are wound around the upper, side and lower surfaces of each battery cell 20 in an S-shape. Since the temperature sensing wire 50 bypasses each battery cell 20 in an S-shape, the temperature sensing wire 50 can accurately detect the temperature around each battery cell 20 so as to rapidly activate the fire extinguishing apparatus 30 to extinguish a fire. Of course, in other embodiments, the temperature sensing wire 50 may be vertically disposed at one side of each battery cell 20.

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 device or element must have a particular orientation, be constructed and operated in a particular orientation, and are 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.

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 intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like as used herein are for illustrative purposes only and do not denote a unique embodiment.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims

1. The utility model provides an energy storage equipment, its characterized in that includes the cabinet body, locates internal battery unit of cabinet and extinguishing device, extinguishing device includes:

a coolant disposed in the coolant chamber;

an initiating component for igniting the fire extinguishing agent;

the pressure relief element is sealed at the nozzle;

2. The energy storage device of claim 1, wherein the body has a channel, the side of the body is provided with a flame and sound suppression hole, and a gap is provided between the body and the fire extinguishing container.

3. The energy storage device according to claim 2, wherein the outer surfaces of the two ends of the body are respectively provided with a first mounting part and a second mounting part which are used for being in contact with the inner surface of the fire extinguishing container in a protruding mode.

4. The energy storage device of claim 2, wherein said flame suppressing holes are provided in plurality, and said flame suppressing holes are provided in plurality at intervals around the side of said body.

5. The energy storage device according to claim 2, wherein a peripheral wall of the flame trap hole has a flow guide portion whose flow guide direction is toward an outside of the body.

6. The energy storage device of claim 2, wherein the coolant chamber is disposed proximate the nozzle, and the flame suppression and sound attenuation member is disposed between the fire suppressant chamber and the coolant chamber;

7. The energy storage device of claim 2, wherein the flame arresting and sound attenuating member further comprises a first screen disposed within the channel of the body;

8. The energy storage device of claim 2, further comprising a second screen disposed between the fire suppressant chamber and the coolant chamber.

9. The energy storage device of claim 2, further comprising a third screen disposed within the fire suppression container, the third screen being disposed at a top of the coolant chamber.

10. The energy storage device of claim 2, wherein the fire suppression container is provided with an outlet hole.

11. The energy storage device of claim 1, further comprising a mesh panel movably disposed between the fire suppressant chamber and the coolant chamber; the body is an elastic piece, one end of the elastic piece is pressed against the fire extinguishing agent chamber, and the other end of the elastic piece is pressed against the screen plate;

12. The energy storage device according to any one of claims 1 to 11, wherein the activation component is a heat-sensitive wire, the heat-sensitive wire is disposed in the cabinet body, and one end of the heat-sensitive wire is in contact with the fire extinguishing agent.

13. The energy storage device of claim 12, wherein the heat sensitive wire is routed around each of the battery cells in an S-shape;

alternatively, the heat-sensitive wire is vertically arranged at one side of each battery unit.

14. The energy storage device according to any one of claims 1 to 11, further comprising a controller and a temperature sensing wire disposed in the cabinet, wherein the temperature sensing wire is electrically connected to the controller.

15. The energy storage device of claim 14, wherein the temperature sensing wire bypasses each of the battery cells in an S-shape;

or, the temperature sensing line is vertically arranged at one side of each battery unit.