CN115591158A

CN115591158A - Fire suppression device, battery and consumer

Info

Publication number: CN115591158A
Application number: CN202211072529.5A
Authority: CN
Inventors: 刘宗哲; 陈诚; 邓小邑
Original assignee: Huawei Digital Power Technologies Co Ltd
Current assignee: Huawei Digital Power Technologies Co Ltd
Priority date: 2022-09-02
Filing date: 2022-09-02
Publication date: 2023-01-13

Abstract

The application provides a fire suppression device, battery and consumer. The fire suppression device comprises a body and a liquid leakage detection module. The body mainly comprises a first cavity, fire-fighting liquid is arranged in the first cavity, a connecting hole is formed in the side face of the first cavity, and the position of the connecting hole is lower than the initial liquid level position of the fire-fighting liquid. The liquid leakage detection module mainly comprises a transparent guide pipe; the transparent guide pipe is communicated with the first cavity through the connecting hole, and the other end of the transparent guide pipe is a closed end. If the body does not leak, the fire-fighting liquid can flow into the closed end of the transparent draft tube through the connecting hole; if the weeping takes place for the body, then liquid level will reduce, when liquid level was less than the connecting hole, the fire control liquid in the transparent draft tube will flow into in the first cavity, and the blind end just does not have the fire control liquid to whether there is the weeping to observe the body at any time through observing whether there is the fire control liquid existence in the blind end.

Description

Fire suppression device, battery and consumer

Technical Field

The application relates to the technical field of lithium ion battery extinguishment, in particular to a fire suppression device, a battery and electric equipment.

Background

Lithium ion batteries, which may be referred to simply as lithium batteries. The lithium battery has the advantages of small volume, light weight, long cycle life and the like, and is widely applied to the fields of communication base stations, data centers, energy storage power stations, electric vehicles and the like at present. With the widespread use of lithium batteries, the demand for lithium batteries having a longer life has been increasingly strong.

The application battery formed by the lithium battery through adding a protection circuit, a shell and an output is called a battery Pack. When in use, the lithium battery is easy to be excited by external environment and has self-manufacturing defects to cause thermal runaway, thereby causing fire. The arrangement of a special fire suppression device in the battery Pack is one of effective ways for reducing the disaster-causing consequence of thermal runaway of the lithium ion battery and ensuring safe escape of personnel. Because the fire suppression device belongs to a safety part, the service life requirement of the fire suppression device matched with the installation and the use of the whole machine is longer, and the state detection function is required in the long-term use process, so that the reliability of the long-term operation of the fire suppression device is ensured.

Disclosure of Invention

The application provides a fire suppression device, battery and consumer can real-time supervision fire suppression device whether weeping.

In a first aspect, an embodiment of the present application provides a fire suppression device, which includes a body and a liquid leakage detection module. Wherein, the body mainly includes first cavity, has fire control liquid in the first cavity. In an exemplary embodiment, the body further comprises a starting portion and a spraying opening, and the starting portion can be started to spray fire-fighting liquid from the spraying opening to extinguish fire when a fire breaks out. In this application, the side of first cavity has the connecting hole, and the position of connecting hole is less than the initial liquid level position of fire control liquid, and initial liquid level position here refers to the liquid level position of fire control liquid before the body does not take place the weeping to guarantee that fire control liquid can flow from the connecting hole. The liquid leakage detection module mainly comprises a transparent guide pipe; one end of the transparent guide pipe is communicated with the first cavity through the connecting hole, the other end of the transparent guide pipe is a closed end, and the position of the closed end is lower than or equal to that of the connecting hole. Therefore, if the body does not leak, the fire fighting liquid can flow into the closed end of the transparent guide pipe through the connecting hole; if the body takes place the weeping, then liquid level will reduce, when liquid level was less than the connecting hole, the fire control liquid in the transparent draft tube will flow into in the first cavity, and the blind end just does not have the fire control liquid to exist through observing whether the blind end has the fire control liquid to exist and observe the body at any time and have the weeping.

In practice, the location of the connecting hole can be set at the safe limit position of the fire-fighting liquid, when the closed end is not provided with the fire-fighting liquid, the fire-fighting liquid in the body is indicated to be leaked to the position below the safe limit, and a new fire suppression device needs to be replaced. The position of the safety margin needs to be designed according to actual products, and is not limited herein.

In practical implementation, the transparent guide pipe can be a flexible pipe, namely the transparent guide pipe is made of flexible materials, so that the closed end of the transparent guide pipe can be easily led out after the fire suppression device is placed in the battery pack in practical use.

For example, in order to facilitate observing whether the fire fighting liquid is in the transparent diversion pipe, the fire fighting liquid can be set to be a colored liquid, such as but not limited to a white liquid, a black liquid, a red liquid, a green liquid, a yellow liquid, a blue liquid, a purple liquid or a pink liquid, etc., so that whether the fire fighting liquid is in the transparent diversion pipe can be judged by observing the color of the transparent diversion pipe.

In one possible design, the liquid leakage detection module further comprises a floating ball positioned in the transparent flow guide pipe, and the floating ball is limited to move in the area close to the closed end, namely the floating ball can only move in the area close to the closed end, so that the floating ball can be prevented from entering the first cavity from the connecting hole. And the density of floating ball is less than the density of fire-fighting liquid, when the body does not leak, the closed end has fire-fighting liquid, and the floating ball can float at the closed end, and when the body does not leak, the closed end does not have fire-fighting liquid, and the floating ball sinks in the closed end. Therefore, whether the body leaks or not can be observed at any time by observing the floating state of the floating ball.

In particular embodiments, the manner in which the present application confines the floating ball in the area proximate the closed end is not limiting and can be any manner that enables confinement of the floating ball in the area proximate the closed end. For example, the inner diameter of the pipe in a partial region of the transparent flow guide pipe may be set smaller than the diameter of the floating ball, or an intercepting net may be provided in the pipe so that fire fighting liquid can pass through the intercepting net, but the floating ball cannot pass through.

Exemplarily, the closed end of the transparent honeycomb duct in the present application has a second cavity, and the second cavity is communicated with the duct of the transparent honeycomb duct, and the volume of the second cavity is greater than the volume of the floating ball, and the floating ball is located in the second cavity. The second cavity is arranged at the closed end, so that the floating ball can float in a larger space, and the state change of the floating ball can be observed more favorably.

The shape of the second cavity is not limited, and the second cavity may be spherical, for example.

In this application, the diameter of floating ball can be greater than the pipeline internal diameter of transparent honeycomb duct, and floating ball can only move in the second cavity like this, can not get into in the pipeline of transparent honeycomb duct.

Alternatively, in order to facilitate observation of the state of the floating ball, the surface of the floating ball may have a color, specifically, a single color, such as white, black, red, green, yellow, blue, purple, pink, or the like, or two or more colors, such as red and white, blue and green, black, yellow and red, green and blue, or the like, without limitation.

In particular, when the fire fighting liquid and the floating ball are both colored, the two are different colors.

For example, the liquid leakage detection module may further include a light source and a light guide column; light emitted by the light source of the transparent guide pipe enters the light guide column after passing through the transparent guide pipe. When the body did not take place the weeping, there was fire control liquid in the transparent honeycomb duct, and the light that the light source sent gets into the light guide post behind the transparent honeycomb duct, because fire control liquid is coloured liquid, consequently the colour of the light that appears in the light guide post is the colour of fire control liquid. When the body takes place the weeping, there is not fire control liquid in the transparent honeycomb duct, and the light that the light source sent gets into the leaded light post behind the transparent honeycomb duct, and the colour of the light that appears in the follow leaded light post is the colour of light source. Thereby whether the body leaks can be observed at any time through the colour of observing the leaded light post.

In a second aspect, the present application provides another fire suppression device, which may include a body and a liquid leakage detection module. Wherein, the body mainly includes the cavity, has fire control liquid in the cavity. The side surface of the cavity is provided with a connecting hole. The liquid leakage detection module can comprise a transparent pipeline, and a spring and a piston which are arranged in the transparent pipeline; one end of the transparent pipeline is communicated with the cavity through the connecting hole, and the other end of the transparent pipeline is a closed end; one end of the spring is fixed at the closed end, the other end of the spring is connected with the piston, the piston can move along the extending direction of the transparent pipe, and the cavity body also comprises pressurized gas. When the body does not leak, the piston extrudes the spring towards the closed end under the action of the pressurized gas, if the body leaks, the pressure applied to the piston is reduced, so that the spring pushes the piston to move towards the cavity, and whether the body leaks or not is observed at any time by observing the position of the piston.

When the pressure-bearing spring is specifically implemented, the position of the connecting hole can be set according to the pressure in the cavity, and the position of the connecting hole needs to meet the requirement that the spring can be at least subjected to the pressure with a set size. In order to prevent the fire fighting liquid from entering the transparent pipe, the connection hole may be disposed above the initial liquid level position of the fire fighting liquid by adjusting the amount of the pressurized gas.

For example, in the present application, when the fire suppression apparatus is placed on a horizontal plane, the extending direction of the transparent pipe may be disposed parallel to the horizontal plane.

Alternatively, for easy viewing, the piston surface may have a color, such as red, white, black, green, yellow, blue, purple, pink, or the like, without limitation.

Illustratively, the transparent tube has a threshold line on the tube. When the body does not leak, the piston extrudes the spring towards the closed end under the action of the pressure of the pressurized gas and the fire-fighting liquid, and the piston is positioned between the spring and the threshold line; if the body leaks, the pressure on the piston is reduced, so that the spring pushes the piston to move towards the cavity, and whether the body leaks or not can be judged more easily by observing the position of the piston relative to the threshold line.

In particular embodiments, the position of the threshold line may be set according to the position of the safety limit of the fire-fighting liquid, and when the piston exceeds the position of the threshold line, indicating that the fire-fighting liquid in the body has leaked below the safety limit, a new fire suppression device needs to be replaced. The position of the safety limit of the fire-fighting liquid needs to be designed according to actual products, and is not limited herein.

Alternatively, for easy observation, the threshold line may be a colored line, such as a red line, a white line, a black line, a green line, a yellow line, a blue line, a purple line, or a pink line, and the like, without being limited thereto.

Further, when the plunger and the threshold line each have a color, the color of the plunger is set to a different color from the color of the threshold line.

Optionally, the liquid leakage detection module may further include a pointer fixed to a side of the piston away from the spring.

For example, the surface of the pointer may have a color, such as red, white, black, green, yellow, blue, purple, pink, etc., without limitation.

Optionally, the fire-fighting liquid is colored liquid, the position of the connecting hole is lower than the initial liquid level position of the fire-fighting liquid, and the piston and the inner wall of the transparent pipeline are arranged in a sealing mode. When the body does not leak, the fire-fighting liquid enters the transparent pipeline through the connecting hole and is blocked by the piston at one side of the piston away from the spring, the piston extrudes the spring towards the direction of the closed end under the action of the pressure of the pressurized gas and the fire-fighting liquid, and the fire-fighting liquid piston is positioned between the spring and the threshold line; if the body takes place the weeping, the pressure that receives on the piston can diminish then to the spring promotes the piston and removes to the cavity direction, and the length of the fire control liquid in the transparent pipeline shortens, thereby can judge more easily whether the body has the weeping through the length of observing the fire control liquid in the pipeline.

In a third aspect, the present application further provides a battery, which includes a box and a fire suppression module as described in the first aspect or various embodiments of the first aspect, disposed in the box. Wherein a battery module is generally arranged in the box body. Wherein, including body and weeping detection module in the fire suppression device, when the battery module conflagration breaing out, the body can put out a fire. In order to ensure the reliability of the long-term operation of the fire suppression device, the body can be observed whether leakage exists or not at any time by utilizing the leakage detection module. The box has observation window, and the blind end of transparent honeycomb duct is drawn forth by observation window to whether there is the weeping of body at any time to observe the blind end through observing whether there is fire control liquid to exist.

When the fire suppression device is specifically implemented, the specific position of the fire suppression device in the box body is not limited, and the fire suppression device can be designed according to actual products.

In a fourth aspect, the present application further provides a battery, which includes a box and the fire suppression module as set forth in the first aspect or the various embodiments of the first aspect, and is disposed in the box. The liquid leakage detection module at least comprises a transparent guide pipe, a light source and a light guide column. The box body is provided with an observation hole, and the light emitting end of the light guide column is exposed out of the observation hole. Exemplarily, the light-emitting end of the light guide column can be embedded in the observation hole, so that whether the body leaks or not can be observed at any time by observing the light-emitting color of the observation hole.

In a fifth aspect, the present application also provides a battery, which includes a box and a fire suppression module as described in the second aspect or the various embodiments of the second aspect, disposed in the box. Wherein a battery module is generally arranged in the box body. Wherein, including body and weeping detection module in the fire suppression device, when the battery module conflagration breaing out, the body can put out a fire. In order to ensure the reliability of the long-term operation of the fire suppression device, whether the body has leakage or not can be observed at any time by utilizing the leakage detection module. The box body is provided with an observation window, at least partial area of the transparent pipeline is positioned in the observation window, for example, the observation window can at least observe the piston or the pointer, so that whether the body leaks or not can be observed at any time by observing the position of the piston or the pointer.

In specific implementation, the size of the observation window may be designed according to the structure of the leakage detection module, for example, when the transparent pipe has a threshold line, the observation window may observe the threshold line in addition to the piston or the pointer. The viewing window may be arranged to enable at least the piston to be viewed through the transparent conduit in the region of the connecting bore, for example when the fire fighting liquid is a coloured liquid.

Further, in the present application, when there is no threshold line on the transparent pipe, a reference part (acting the same as the threshold line) may be provided at the observation window, so that whether the body leaks or not can be observed at any time by observing the position of the piston relative to the reference part.

In a sixth aspect, the present application further provides an electric device, where the electric device includes a housing and the battery of the third aspect to the fifth aspect, which is accommodated in the housing, for example, the electric device is an energy storage base station, a consumer electronic product (such as a mobile phone, a tablet or a wearable device), an electric vehicle, and the like. Or the electric equipment comprises a housing and the fire suppression device of the first aspect to the second aspect, wherein the fire suppression device is accommodated in the housing, and the electric equipment is, for example, a power distribution cabinet or a power replacement cabinet.

The technical effects that can be achieved by the third aspect to the sixth aspect may refer to the technical effect description that can be achieved by any one of the possible designs of the first aspect and the second aspect, and will not be described repeatedly here.

Drawings

FIG. 1 is a schematic diagram of a fire suppression device according to an embodiment of the present disclosure;

FIG. 2 is a schematic side view of a fire suppression device according to an embodiment of the present disclosure;

FIG. 3 is a schematic side view of a fire suppression device according to another embodiment of the present disclosure;

FIG. 4 is a schematic view of a fire suppression apparatus according to another embodiment of the present disclosure;

FIG. 5 is a schematic view of a fire suppression device according to yet another embodiment of the present application;

FIG. 6 is a partial schematic view of the fire suppression device of FIG. 5;

FIG. 7 is a schematic structural view of a fire suppression device according to yet another embodiment of the present application;

FIG. 8 is a partial schematic view of the fire suppression apparatus of FIG. 7;

FIG. 9 is a schematic view of a fire suppression device according to yet another embodiment of the present application;

FIG. 10 is a schematic view of a fire suppression apparatus according to yet another embodiment of the present application;

FIG. 11 is a schematic view of a fire suppression device according to yet another embodiment of the present application;

fig. 12 is a schematic structural diagram of a battery according to an embodiment of the present application;

fig. 13 is a schematic structural diagram of a battery according to another embodiment of the present application;

fig. 14 is a schematic structural diagram of a battery according to yet another embodiment of the present application;

fig. 15 is a schematic structural diagram of an electric device according to an embodiment of the present application;

fig. 16 is a schematic structural diagram of an electric device according to another embodiment of the present application.

Description of reference numerals:

10-a fire suppression device; 11-a body; 12-a leakage detection module; 112-a start-up section; 113-a hair spray opening; 111-connection hole; 121-transparent honeycomb duct; 121 a-closed end; 122-a floating ball; 123-a light source; 124-light guide column; 125-transparent pipe; 126-a spring; 127-a piston; 128-a pointer; 1-a battery; 01-a box body; 010-an observation window; 011-observation hole; 100-electric equipment; 101-a housing.

Detailed Description

In order to make the objects, technical solutions and advantages of the present application more clear, the present application will be further described in detail with reference to the accompanying drawings. Example embodiments may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of example embodiments to those skilled in the art. The same reference numerals in the drawings denote the same or similar structures, and thus their repetitive description will be omitted. The words used in this application to describe positions and orientations are provided by way of example in the drawings and can be changed as desired and are intended to be encompassed by the present application. The drawings of the present application are for illustrating relative positional relationships only and do not represent true scale.

It should be noted that in the following description, specific details are set forth in order to provide a thorough understanding of the present application. This application is capable of implementation in many different ways than those herein set forth and of similar import by those skilled in the art without departing from the spirit and scope of this application. The present application is therefore not limited to the specific embodiments disclosed below. The following description is of the preferred embodiment for carrying out the present application, but is made for the purpose of illustrating the general principles of the application and is not to be taken in a limiting sense. The protection scope of the present application shall be subject to the definitions of the appended claims.

For convenience of understanding the negative electrode sheet of the lithium ion battery, the lithium ion battery and the electric device provided in the embodiments of the present application, an application scenario thereof is first described below. In the use process of the electric equipment, a power supply device is generally needed for supplying power, and at present, a lithium ion battery is generally selected as the power supply device for the small-sized electric equipment, particularly for the movable electric equipment. Lithium ion batteries have high energy density, long cycle life, and low self-discharge rate. However, lithium ion batteries are vulnerable to external environmental stimuli and self-manufacturing defects during use, which cause thermal runaway, and thus cause fire. The arrangement of a special fire suppression device in the battery Pack is one of effective ways for reducing the thermal runaway disaster-causing consequence of the lithium ion battery and ensuring the safe escape of personnel. Because the fire suppression device belongs to a safety part, the service life requirement of the fire suppression device in cooperation with the installation and the use of the whole machine is longer, and a state detection function is required in the long-term use process, so that the reliability of the long-term operation of the fire suppression device is ensured. At present, air pressure, liquid level and ultrasonic methods are mainly adopted in the industry to detect whether the fire fighting equipment has liquid leakage. However, the methods are not suitable for state detection of the built-in fire suppression device of the current battery Pack, and the main problems are that the fire suppression device is small in size, cannot be detected by ultrasonic when being installed inside the battery Pack, cannot be used for weight measurement when being installed by screws, is a non-pressure container inside, and is not suitable for a pressure detection scheme.

In view of this, the present application provides a fire suppression device, a battery and an electric device, which can monitor whether the fire suppression device leaks liquid in real time. The present application will be described in further detail below with reference to the accompanying drawings.

Fig. 1 is a schematic structural diagram of a fire suppression device according to an embodiment of the present disclosure, and as shown in fig. 1, a fire suppression device 10 according to an embodiment of the present disclosure includes a body 11 and a liquid leakage detection module 12. The body 11 mainly includes a first cavity, and fire-fighting liquid is provided in the first cavity. The body 11 is also provided with an actuating portion and a nozzle (not shown in fig. 1), which can be actuated to discharge fire-fighting liquid from the nozzle to extinguish a fire when a fire occurs. Illustratively, the side surface of the first cavity is provided with a connecting hole 111, and the position of the connecting hole 111 is lower than the initial liquid level position of the fire-fighting liquid, wherein the initial liquid level position refers to the liquid level position of the fire-fighting liquid before liquid leakage occurs to the body 11, so as to ensure that the fire-fighting liquid can flow out from the connecting hole 111. The liquid leakage detection module 12 mainly comprises a transparent flow guide pipe 121; one end of the transparent flow guide tube 121 is communicated with the first cavity through the connection hole 111, the other end of the transparent flow guide tube 121 is a closed end 121a, and the position of the closed end 121a is lower than or equal to that of the connection hole 111. Thus, if the body 11 does not leak, the fire fighting liquid can flow into the closed end 121a of the transparent draft tube 121 through the connection hole 111; if the body 11 leaks, the liquid level will be lowered, and when the liquid level is lower than the connection hole 111, the fire-fighting liquid in the transparent draft tube 121 will flow into the first cavity, and the closed end 121a will not have the fire-fighting liquid, so that whether the body 11 leaks or not can be observed at any time by observing whether the closed end 121a has the fire-fighting liquid or not.

The shape of the first cavity of the body is not limited, and the first cavity may be a cube, for example.

In practice, the location of the connection hole 111 may be set at the safe limit of fire fighting liquid, and when the closed end 121a is empty of fire fighting liquid, indicating that the fire fighting liquid in the body 11 has leaked below the safe limit, the fire suppression device 10 needs to be replaced with a new one. The safety limit position needs to be designed according to the actual product, and is not limited herein.

The fire suppression device 10 has a fixed placement position when in actual use, and after the fire suppression device 10 is in accordance with the fixed placement position, for example, the fire suppression device 10 is placed in accordance with the position shown in fig. 2, or the fire suppression device 10 is placed in accordance with the position shown in fig. 3. In this application, regardless of how the fixed placement position of the fire suppression device 10 is set, as long as the fire suppression device 10 is placed according to the fixed placement position, the position of the connection hole 111 is lower than the initial liquid level position of the fire fighting liquid, and the position of the closed end 121a is lower than or equal to the position of the connection hole 111, so as to ensure that the fire fighting liquid can flow into the closed end 121a of the transparent draft tube 121 through the connection hole 111 when no liquid leakage occurs in the body 11.

In practical implementation, the transparent flow guide tube 121 may be a flexible tube, that is, the transparent flow guide tube 121 is made of a flexible material, so that the closed end 121a of the transparent flow guide tube 121 can be easily led out after the fire suppression device 10 is placed in the battery Pack.

For example, with continued reference to fig. 2 and 3, the connection hole 111 may be provided at a side of the body 11 where the activation portion 112 or the firing port 113 is provided. In particular, as shown in fig. 2 and 3, the activation portion 112 and the hair spray opening 113 are generally disposed on the same side of the body 11. Thus, the connection hole 111, the actuating portion 112 and the spouting port 113 can be disposed on the same side of the body 11.

For example, in order to facilitate observing whether the fire fighting liquid is in the transparent flow guide tube 121, the fire fighting liquid may be a colored liquid, such as but not limited to a white liquid, a black liquid, a red liquid, a green liquid, a yellow liquid, a blue liquid, a purple liquid, or a pink liquid, so that observing the color of the transparent flow guide tube 121 can determine whether the fire fighting liquid is in the transparent flow guide tube 121.

Referring to fig. 4, fig. 4 is a schematic structural diagram of a fire suppression device 10 according to another embodiment of the present disclosure. The liquid leakage detection module 12 further includes a floating ball 122 located in the transparent flow guide tube 121 and limited to move in the area close to the closed end 121a, that is, the floating ball 122 can only move in the area close to the closed end 121a, so that the floating ball 122 can be prevented from entering the first cavity from the connecting hole 111. And the density of the floating ball 122 is less than that of the fire-fighting liquid, when the body 11 has no liquid leakage, the closed end 121a has the fire-fighting liquid, the floating ball 122 can float at the closed end 121a, when the body 11 has no liquid leakage, the closed end 121a has no fire-fighting liquid, and the floating ball 122 sinks in the closed end 121a. Thus, whether or not there is leakage in the main body 11 can be observed at any time by observing the floating state of the floating ball 122.

In practice, the manner in which the present application confines floating ball 122 to the area proximate closed end 121a is not intended to be limiting, and may be any manner that achieves confinement of floating ball 122 to the area proximate closed end 121a. For example, the inner diameter of the pipe in a partial region of the transparent flow guide tube 121 may be set smaller than the diameter of the floating ball 122, or an intercepting net may be provided in the pipe so that fire fighting liquid can pass through the intercepting net but the floating ball 122 cannot pass through.

Referring to fig. 5 and 6, fig. 5 is a schematic structural view of a fire suppression device according to another embodiment of the present disclosure; fig. 6 is a partial structural view of the fire suppression device shown in fig. 5. The closed end 121a of the transparent flow guide tube 121 is provided with a second cavity, the second cavity is communicated with the pipeline of the transparent flow guide tube 121, the volume of the second cavity is larger than that of the floating ball 122, and the floating ball 122 is located in the second cavity. This provides a second cavity at closed end 121a to allow floating ball 122 to float in a larger space, which is more advantageous for observing the state change of floating ball 122.

Referring to fig. 6, in the present application, the diameter R1 of the floating ball 122 may be larger than the inner diameter R2 of the tube of the transparent fluid conduit 121, such that the floating ball 122 can only move within the second chamber and cannot enter the tube of the transparent fluid conduit 121.

Alternatively, in order to facilitate observation of the state of floating ball 122, the surface of floating ball 122 may have a color, specifically, a single color, such as white, black, red, green, yellow, blue, purple, pink, or the like, or two or more colors, such as red and white, blue and green, black, yellow and red, green and blue, or the like, without limitation.

In particular implementations, when both the fire fighting liquid and floating ball 122 are colored, they are not the same color.

Referring to fig. 7 and 8, fig. 7 is a schematic structural view of a fire suppression device according to another embodiment of the present disclosure; fig. 8 is a partial structural view of the fire suppression device shown in fig. 7. The liquid leakage detection module 12 may further include a light source 123 and a light guide column 124; the light emitted from the light source 123 of the transparent flow guide tube 121 passes through the transparent flow guide tube 121 and then enters the light guide column 124. When the body 11 does not leak, the transparent guide pipe 121 is filled with fire-fighting liquid, light emitted by the light source 123 enters the light guide column 124 after passing through the transparent guide pipe 121, and the color of the light appearing in the light guide column 124 is the color of the fire-fighting liquid because the fire-fighting liquid is colored liquid. When the body 11 leaks, there is no fire-fighting liquid in the transparent guide pipe 121, the light emitted from the light source 123 passes through the transparent guide pipe 121 and then enters the light guide column 124, and the color of the light emitted from the light guide column 124 is the color of the light source 123. Therefore, whether the body 11 leaks or not can be observed at any time by observing the color of the light guide column 124.

Based on the same technical concept, the embodiment of the present application further provides another fire suppression device 10, see fig. 9, and fig. 9 is a schematic structural diagram of a fire suppression device provided in another embodiment of the present application. The fire suppression device 10 may include a body 11 and a liquid leakage detection module 12. Wherein, the body 11 mainly comprises a cavity, and fire-fighting liquid is arranged in the cavity. The body 11 is also provided with an actuating portion and a nozzle (not shown in fig. 9) which can be actuated when a fire occurs, thereby causing the fire fighting liquid to be sprayed from the nozzle. The side of the cavity has a connection hole 111. The leakage detection module 12 may include a transparent tube 125 and a spring 126 and a piston 127 disposed within the transparent tube 125; one end of the transparent pipe 125 is communicated with the cavity through the connection hole 111, and the other end of the transparent pipe 125 is a closed end; one end of the spring 126 is fixed at the closed end, the other end of the spring 126 is connected with the piston 127, and the piston 127 can move along the extending direction of the transparent tube 125, and the chamber also contains pressurized gas. When no liquid leakage occurs in the body 11, the piston 127 presses the spring 126 towards the closed end under the action of the pressurized gas, if liquid leakage occurs in the body 11, the pressure applied on the piston 127 is reduced, so that the spring 126 pushes the piston 127 to move towards the cavity, and whether liquid leakage occurs in the body 11 is observed at any time by observing the position of the piston 127.

For example, the connection hole 111 may be provided at a side of the body 11 where the actuating portion 112 or the spouting port 113 is provided. In practice, the activation portion 112 and the hair spray opening 113 are generally disposed on the same side of the body 11. Thus, the connecting hole 111, the actuating portion 112 and the spraying port 113 can be disposed on the same side of the body 11, as can be seen in fig. 2 and 3.

In specific implementation, the position of the connection hole 111 may be set according to the pressure inside the chamber, and the position of the connection hole 111 needs to satisfy the requirement that the spring 126 can receive at least a set amount of pressure. In order to prevent the fire fighting liquid from entering the transparent pipe 125, as shown in fig. 9, the connection hole 111 may be disposed above the initial level of the fire fighting liquid by adjusting the amount of pressurized gas.

For example, in the present application, when the fire suppression device 10 is placed on a horizontal plane, the extending direction of the transparent duct 125 may be set parallel to the horizontal plane.

The function of the "pressurized gas" in this application is to make the pressure inside the chamber higher than the external pressure, and the pressurized gas may be any gas that does not react with the fire fighting liquid, and is not limited herein.

In specific implementation, the gas slow-release agent can be added into the cavity of the body at normal pressure in the stage of assembling the fire suppression device 10, and after the assembly is finished, the gas slow-release agent can be excited by high-temperature aging to generate pressurized gas, so that the pressure in the cavity is increased. Therefore, the operation under pressure in the assembling stage can be avoided, and the assembling difficulty is reduced.

Alternatively, for easy observation, the surface of the piston 127 may have a color, such as red, white, black, green, yellow, blue, purple, pink, or the like, without limitation.

Illustratively, with continued reference to FIG. 9, transparent tube 125 has a threshold line on the tube. When no leakage occurs in the body 11, the piston 127 presses the spring 126 toward the closed end under the pressure of the pressurized gas and the fire-fighting liquid, the piston 127 being located between the spring 126 and the threshold line; if the body 11 has liquid leakage, the pressure on the piston 127 will be reduced, so that the spring 126 pushes the piston 127 to move towards the cavity, and whether the body 11 has liquid leakage can be more easily judged by observing the position of the piston 127 relative to the threshold line.

In particular implementations, the position of the threshold line may be set based on the location of the safe limit for fire fighting liquid, and when the piston 127 exceeds the position of the threshold line, indicating that fire fighting liquid within the body 11 has leaked below the safe limit, a replacement of the fire suppression device 10 is required. The position of the safety limit of the fire-fighting liquid needs to be designed according to actual products, and is not limited herein.

Alternatively, for easy observation, the threshold line may be provided as a colored line, such as a red line, a white line, a black line, a green line, a yellow line, a blue line, a purple line, or a pink line, and the like, without being limited thereto.

Further, when the piston 127 and the threshold line both have colors, the color of the piston 127 is set to a different color from the color of the threshold line.

Optionally, referring to fig. 10, fig. 10 is a schematic structural diagram of a fire suppression device according to another embodiment of the present application, and the liquid leakage detecting module 12 may further include a pointer 128 fixed to a side of the piston 127 away from the spring 126.

For example, the surface of the pointer 128 may have a color, such as red, white, black, green, yellow, blue, purple, pink, etc., without limitation.

Alternatively, referring to fig. 11, fig. 11 is a schematic structural diagram provided by another embodiment of the present application, the fire fighting liquid is a colored liquid, the position of the connection hole 111 is lower than the initial liquid level position of the fire fighting liquid, and the piston 127 is arranged in a sealing manner with the inner wall of the transparent pipe 125. When no leakage occurs in the body 11, the fire-fighting liquid enters the transparent duct 125 through the connecting hole 111, and is blocked by the piston 127 on the side of the piston 127 away from the spring 126, and the piston 127 presses the spring 126 toward the closed end 121a under the pressure of the pressurized gas and the fire-fighting liquid, and the fire-fighting liquid piston 127 is located between the spring 126 and the threshold line; if the body 11 has liquid leakage, the pressure on the piston 127 is reduced, so that the spring 126 pushes the piston 127 to move towards the cavity, the length of the fire-fighting liquid in the transparent pipeline 125 is shortened, and whether the body 11 has liquid leakage or not can be judged more easily by observing the length of the fire-fighting liquid in the transparent pipeline 125.

Referring to fig. 12 to 14, the embodiment of the present application further provides a battery 1, which includes a case 01 and a fire suppression device 10 of any one of the embodiments provided in the case 01. The case 01 is generally provided therein with a battery module (not shown). The fire suppression device 10 comprises a body 11 and a leakage detection module 12, and when a fire breaks out in the battery module, the body 11 can extinguish the fire. In order to ensure the reliability of the long-term operation of the fire suppression device 10, the body 11 may be observed at any time for the presence of liquid leakage by the liquid leakage detection module 12.

In the present invention, the specific position of the fire suppression device 10 in the box 01 is not limited, and the fire suppression device may be designed according to actual products.

In one embodiment, as shown in fig. 12, when the liquid leakage detecting module 12 includes the transparent flow guide tube 121, the box 01 has an observation window 010, and the closed end 121a of the transparent flow guide tube 121 is led out from the observation window 010, so that whether liquid leakage exists in the body 11 can be observed at any time by observing whether fire fighting liquid exists in the closed end 121a.

In another embodiment, as shown in fig. 13, when the liquid leakage detecting module 12 includes the transparent flow guiding tube 121, the light source 123 and the light guiding column 124, the box 01 has an observation hole 011, and the light emitting end of the light guiding column 124 is exposed out of the observation hole 011. For example, the light emitting end of the light guiding rod 124 may be embedded in the observation hole 011, so as to observe whether the body 11 has liquid leakage or not at any time by observing the light emitting color of the observation hole 011. In fig. 13, for convenience of distinction, the size of the observation hole 011 is set to be larger than the size of the light exit end of the light guide pillar 124, and the size of the observation hole 011 can be set to be the same as the size of the light exit end of the light guide pillar 124 in specific implementation.

In still another embodiment, as shown in fig. 14, when the leakage detecting module 12 includes a transparent tube 125 and a spring 126 and a plunger 127 disposed in the transparent tube 125, the box 01 has a viewing window 010, and at least a partial area of the transparent tube 125 is located in the viewing window 010, for example, the viewing window 010 can at least view the plunger 127 or the pointer 128, so as to observe whether leakage occurs in the body 11 at any time by observing the position of the plunger 127 or the pointer 128.

In practical implementation, the size of the observation window 010 may be designed according to the structure of the leakage detection module 12, for example, when the transparent tube 125 has a threshold line, the observation window 010 may observe the threshold line in addition to the piston 127 or the pointer 128. The observation window 010 can be arranged to enable at least the transparent duct 125 in the area of the connection hole 111 to the piston 127 to be observed, for example when the fire fighting liquid is a coloured liquid.

Further, in the present application, when there is no threshold line on the transparent tube 125, a reference portion (for example, a reference line, which acts the same as the threshold line) may be provided at the observation window 010, so that whether or not liquid leakage occurs in the body 11 can be observed at any time by observing the position of the piston 127 with respect to the reference portion.

In practical applications, the battery 1 in the present application may be a lithium ion battery, a lead acid battery, a sodium battery, a magnesium battery, an aluminum battery, a potassium battery, and the like, and is not limited herein.

The present application further provides an electric device 100, referring to fig. 15, where the electric device 100 includes a housing 101 and the battery 1 of any of the above embodiments housed in the housing 101, for example, the electric device 100 is an energy storage base station, a consumer electronic product (such as a mobile phone, a tablet or a wearable device), an electric vehicle, and the like. Since the principle of the electric device 100 for solving the problem is similar to that of the battery 1, the implementation of the electric device 100 can be referred to the implementation of the battery 1, and repeated descriptions are omitted.

The present application further provides another electrical device 100, referring to fig. 16, the electrical device 100 includes a housing 101 and the fire suppression apparatus 10 of any of the above embodiments housed in the housing 101, for example, the electrical device 100 is a power distribution cabinet or a power replacement cabinet. Since the principle of solving the problem of the electric equipment 100 is similar to that of the fire suppression device 10, the implementation of the electric equipment 100 can be referred to the implementation of the fire suppression device 10, and the repeated description is omitted.

It will be apparent to those skilled in the art that various changes and modifications may be made in the present application without departing from the spirit and scope of the application. Thus, if such modifications and variations of the present application fall within the scope of the claims of the present application and their equivalents, the present application is intended to include such modifications and variations as well.

Claims

1. A fire suppression device is characterized by comprising a body and a liquid leakage detection module; wherein:

the body comprises a first cavity, fire-fighting liquid is arranged in the first cavity, a connecting hole is formed in the side surface of the first cavity, the position of the connecting hole is lower than the initial liquid level position of the fire-fighting liquid, and the initial liquid level position is the liquid level position of the fire-fighting liquid before liquid leakage of the body occurs;

the liquid leakage detection module comprises a transparent guide pipe, one end of the transparent guide pipe is communicated with the first cavity through the connecting hole, the other end of the transparent guide pipe is a closed end, and the position of the closed end is lower than or equal to that of the connecting hole.

2. The fire suppression apparatus of claim 1, wherein the leak detection module further comprises a floating ball located within the transparent draft tube, the floating ball being constrained to move within a region proximate the closed end, wherein the floating ball has a density less than a density of the fire fighting liquid.

3. The fire suppression apparatus of claim 2, wherein the closed end has a second cavity in communication with the duct of the transparent draft tube, the second cavity having a volume greater than a volume of the floating ball, the floating ball being located within the second cavity.

4. A fire suppression apparatus as defined in claim 3 wherein said floating ball has a diameter greater than the inside diameter of the duct of said transparent draft tube.

5. A fire suppression apparatus as claimed in any one of claims 2 to 3, wherein the surface of the float ball is coloured.

6. A fire suppression apparatus as claimed in any one of claims 1 to 4, wherein the fire fighting liquid is a coloured liquid.

7. The fire suppression apparatus of claim 6, wherein the weep detection module further comprises a light source and a light guide;

and light emitted by the light source enters the light guide column after passing through the transparent guide tube.

8. A battery comprising a case and the fire suppression device of any one of claims 1-7 disposed within the case;

the box body is provided with an observation window, and the closed end of the transparent guide pipe is led out from the observation window.

9. A battery comprising a case and the fire suppression device of claim 7 disposed in the case;

the box body is provided with an observation hole, and the light emitting end of the light guide column is exposed out of the observation hole.

10. A fire suppression device is characterized by comprising a body and a liquid leakage detection module; wherein:

the body comprises a cavity, wherein the cavity comprises fire-fighting liquid and pressurized gas, and the side surface of the cavity is provided with a connecting hole;

the liquid leakage detection module comprises a transparent pipeline, and a spring and a piston which are arranged in the transparent pipeline;

one end of the transparent pipeline is communicated with the cavity through the connecting hole, and the other end of the transparent pipeline is a closed end;

one end of the spring is fixed at the closed end, and the other end of the spring is connected with the piston.

11. A fire suppression apparatus as claimed in claim 10, wherein the transparent pipe has a threshold line on the pipe.

12. A fire suppression apparatus as claimed in claim 10 or claim 11, wherein the leakage detection module further comprises a pointer fixed to a side of the piston remote from the spring.

13. A fire suppression apparatus as defined in claim 10 or claim 11, wherein the fire fighting liquid is a coloured liquid, the location of the connection hole is below the initial liquid level of the fire fighting liquid, and the piston is sealingly arranged with the inner wall of the transparent pipe.

14. A battery comprising a case and a fire suppression device according to any one of claims 10 to 13 disposed in the case;

the box body is provided with an observation window, and at least partial region of the transparent pipeline is positioned in the observation window.

15. An electrical apparatus comprising a housing and a battery according to claim 8, 9 or 14 or a fire suppression device according to any one of claims 1 to 7 and 10 to 13 housed within the housing.