CN210296467U

CN210296467U - Fire extinguishing protection system for battery pack out of control at high temperature

Info

Publication number: CN210296467U
Application number: CN201921622274.9U
Authority: CN
Inventors: 李同春; 袁嫘; 袁家良; 崔园园
Original assignee: Anhui Weizhuo New Energy Technology Co ltd
Current assignee: Anhui Weizhuo New Energy Technology Co ltd
Priority date: 2019-09-27
Filing date: 2019-09-27
Publication date: 2020-04-10
Anticipated expiration: 2029-09-27

Abstract

The utility model discloses a battery package high temperature out of control's protection system that puts out a fire, including battery case body and a plurality of fire extinguishing mechanism, the inner chamber of battery case body is hollow structure, a plurality of fire extinguishing mechanism all installs in the inner chamber bottom face of battery case body, every fire extinguishing mechanism all includes first storage vat, second storage vat, first temperature sensing wire and second temperature sensing wire, every fire extinguishing mechanism's first storage vat and second storage vat wait, and equal with the vertical height of inner chamber of battery case body. The utility model relates to a battery package high temperature protection system of putting out a fire out of control, battery package when using take place the high temperature out of control, come to put out a fire fast to the group battery through installation automatic fire extinguishing systems to arouse the unnecessary damage, easy operation is convenient, and the security is good.

Description

Fire extinguishing protection system for battery pack out of control at high temperature

Technical Field

The utility model relates to a battery package relevant technical field that puts out a fire specifically is a battery package high temperature protection system that puts out a fire out of control.

Background

The electrolyte is used for isolating a combustion source, the diaphragm is used for improving the heat-resistant temperature, but the temperature of the battery pack is increased due to insufficient heat dissipation of the battery pack, thermal runaway of the battery is caused by excessive heat accumulation, the battery pack can self-ignite once the ignition temperature is reached, and explosion events can occur due to thermal reaction between the anode material of the battery pack and the electrolyte or self-ignition caused by short circuit of the battery pack, so that greater damage is brought.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a battery package high temperature out of control's protection system that puts out a fire to solve the problem that proposes in the above-mentioned background art.

In order to solve the technical problem, the utility model provides a following technical scheme: the utility model provides a battery package high temperature out of control's protection system that puts out a fire, includes battery case body and a plurality of fire extinguishing mechanism, battery case body's inner chamber is hollow structure, a plurality of fire extinguishing mechanism all installs in battery case body's inner chamber bottom face, every fire extinguishing mechanism all includes first storage vat, second storage vat, first temperature sensing wire and second temperature sensing wire.

Preferably, a detachable upper cover is engaged with an upper end surface of the battery case.

Preferably, every the bottom face of first storage vat and every second storage vat is both sides around the inner chamber bottom face of battery case body fixed mounting respectively, every the inner chamber of first storage vat and every second storage vat all fills has hot aerosol gaseous propellant of putting out a fire, every hole of putting out a fire, every have all been seted up from top to bottom to first storage vat and every second storage vat relative lateral wall the hole of putting out a fire, every distribute about first heat-sensitive wire and every second heat-sensitive wire, every hole of putting out a fire is run through respectively at both ends around first heat-sensitive wire and every second heat-sensitive wire, and prolong to the inner chamber of every first storage vat and every second storage vat.

Preferably, the front end and the rear end of each first thermosensitive wire and each second thermosensitive wire are respectively connected with an I-shaped sponge strip which is respectively positioned in the inner cavity of each first storage barrel and the inner cavity of each second storage barrel.

Preferably, the outer wall of each first thermosensitive wire and the outer wall of each second thermosensitive wire are respectively wound with a first thermal fuse and a second thermal fuse for connecting the positive electrode and the negative electrode of the battery.

Preferably, the first storage barrel and the second storage barrel of each fire extinguishing mechanism are equal in height and equal to the vertical height of the inner cavity of the battery outer shell.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the utility model relates to a battery package high temperature protection system of putting out a fire out of control, battery package take place the high temperature when out of control when using, come to put out a fire the group battery fast through installation automatic fire extinguishing systems to arouse the unnecessary damage, easy operation is convenient, and the security is good.

2. The utility model discloses, the first hot melt silk and the second hot melt silk of being connected with the positive negative pole of group battery can receive the high temperature influence and melt in combustion process, and the disconnection is connected with external circuit, protection external circuit.

Drawings

FIG. 1 is an exploded view of the structure of an embodiment of the present invention;

fig. 2 is a side view structural section of the fire extinguishing mechanism of the embodiment of the utility model.

In the figure: 1. an upper cover; 2. a fire extinguishing mechanism; 21. a second storage vat; 22. a first thermally sensitive wire; 23. a first storage vat; 24. a hot aerosol fire suppressing gas generant; 25. an I-shaped sponge strip; 26. a first thermal fuse; 27. a second thermally sensitive wire; 28. a second thermal fuse; 3. and a battery outer case.

Detailed Description

In order to facilitate the use, the embodiment of the utility model provides a battery package high temperature out of control's fire protection system. The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Example 1

Referring to fig. 1-2, the present embodiment provides a fire extinguishing protection system for battery pack out of control due to high temperature, including a battery case 3 and a plurality of fire extinguishing mechanisms 2, an inner cavity of the battery case 3 is a hollow structure, the plurality of fire extinguishing mechanisms 2 are all installed on a bottom end face of the inner cavity of the battery case 3, and each fire extinguishing mechanism 2 includes a first storage bin 23, a second storage bin 21, a first thermosensitive wire 22 and a second thermosensitive wire 27.

Wherein, the bottom end face of every first storage vat 23 and every second storage vat 21 is both sides around the inner chamber bottom end face of cell housing body 3 fixed mounting respectively, every first storage vat 23 and the inner chamber of every second storage vat 21 all are filled with hot aerosol fire extinguishing gas generating agent 24, hot aerosol fire extinguishing gas generating agent 24 is a solid chemical mixture who comprises oxidant, reductant, burning rate control agent and adhesive, every first storage vat 23 and every second storage vat 21 relative lateral wall have all seted up the hole of putting out a fire from top to bottom, every first temperature sensing wire 22 and every second temperature sensing wire 27 distribute from top to bottom, the hole of putting out a fire is run through respectively at both ends around every first temperature sensing wire 22 and every second temperature sensing wire 27, and extend to the inner chamber of every first storage vat 23 and every second storage vat 21.

In this embodiment, the fire extinguishing mechanism 2 is installed on the bottom end surface of the inner cavity of the battery outer casing 3, and the battery pack is placed between the first storage bin 23 and the second storage bin 21 which are distributed in the front and back direction, in addition, each first thermosensitive lead 22 and each second thermosensitive lead 27 are placed in the gap between two adjacent batteries, in the normal use process of the battery pack, if the batteries are spontaneously combusted due to poor heat dissipation performance or short circuit, the first thermosensitive lead 22 and each second thermosensitive lead 27 which are initially heated are the first thermosensitive lead 22 and each second thermosensitive lead 27 which are at the spontaneous combustion position, after being heated, the first thermosensitive lead 22 and each second thermosensitive lead 27 reach the temperature and then burn, and finally the hot aerosol fire extinguishing gas generating agent 24 which is burnt into the inner cavities of the first storage bin 23 and the second storage bin 21, under the thermal effect, the gasified metal ions and cations in the hot aerosol fire extinguishing gas generating agent 24 can generate affinity reaction with the active groups in combustion, a large amount of active groups are repeatedly consumed, combustion free radicals are reduced, and the combustion free radicals in flame are efficiently absorbed and neutralized, so that the chemical inhibition fire extinguishing effect is achieved; and the aerosol that the solid particle formed is wrapped up in the hot aerosol gas generating agent 24 of putting out a fire, can suspend for a long time, scatter each corner to a high efficiency of the mode of flooding entirely puts out a fire, avoids the group battery burning to take place the explosion incident, in addition, changes the tradition and adopts the mode of putting out a fire after the alarm system reports to the police, the utility model discloses when taking place the high temperature out of control when using, come to put out a fire to the group battery fast through installation automatic fire extinguishing system, can effectively restrain stretching of post intensity of a fire, in order to avoid arousing unnecessary damage, easy operation is convenient, and the security is good, and.

Example 2

Referring to fig. 1-2, a further improvement is made on the basis of embodiment 1:

the up end block of battery case body 3 has detachable upper cover 1, and the matching lid that closes through upper cover 1 and battery case body 3 can be convenient for protect the group battery not damaged by external force.

The front end and the rear end of each first thermosensitive wire 22 and each second thermosensitive wire 27 are connected with an I-shaped sponge strip 25 which is respectively positioned in the inner cavity of each first storage barrel 23 and the inner cavity of each second storage barrel 21, and the I-shaped sponge strips 25 are arranged in the inner cavities of each first storage barrel 23 and each second storage barrel 21, so that the hot aerosol fire extinguishing gas generating agent 24 is conveniently heated in an auxiliary mode, and the chemical mode is realized to inhibit the fire from breeding.

The outer walls of each first thermosensitive lead 22 and each second thermosensitive lead 27 are respectively wound with a first thermal fuse 26 and a second thermal fuse 28 for connecting the positive electrode and the negative electrode of the battery, and the first thermal fuse 26 and the second thermal fuse 28 connected with the positive electrode and the negative electrode of the battery pack can be melted under the influence of high temperature in the combustion process, so that the connection with an external circuit is disconnected, and the external circuit is protected.

The first storage barrel 23 and the second storage barrel 21 of each fire extinguishing mechanism 2 are equal in height and equal to the vertical height of the inner cavity of the battery outer shell 3, so that the installation of the whole structure is not influenced.

In the description of the present application, it should be noted that the terms "vertical", "upper", "lower", "horizontal", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present application. Furthermore, "first," "second," "third," and "fourth" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present application, it should be further noted that, unless otherwise explicitly stated or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly and may include, for example, a fixed connection, a detachable connection, an integral connection, a mechanical connection, an electrical connection, a direct connection, a connection through an intermediate medium, and a connection between two elements. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art according to specific circumstances.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a battery package high temperature out of control's protection system that puts out a fire, includes battery case body (3) and a plurality of fire extinguishing mechanism (2), its characterized in that: the inner chamber of battery case body (3) is hollow structure, a plurality of put out a fire mechanism (2) and all install in the inner chamber bottom face of battery case body (3), every put out a fire mechanism (2) and all include first storage vat (23), second storage vat (21), first temperature sensing wire (22) and second temperature sensing wire (27).

2. The fire-extinguishing protection system for the battery pack under the condition of high temperature runaway according to claim 1, wherein the fire-extinguishing protection system comprises: the upper end face of the battery outer shell (3) is clamped with a detachable upper cover (1).

3. The fire-extinguishing protection system for the battery pack under the condition of high temperature runaway according to claim 1, wherein the fire-extinguishing protection system comprises: every both sides around the inner chamber bottom end face of first storage vat (23) and every second storage vat (21) fixed mounting respectively are in outer battery case (3) the inner chamber bottom end face of every first storage vat (23) and every second storage vat (21) the inner chamber all is filled with hot aerosol gas generating agent (24) of putting out a fire, every hole of putting out a fire, every all have been seted up from top to bottom to first storage vat (23) and every second storage vat (21) relative lateral wall first temperature sensing wire (22) and every second temperature sensing wire (27) distribute from top to bottom, every hole of putting out a fire is run through respectively at both ends around first temperature sensing wire (22) and every second temperature sensing wire (27), and prolong to the inner chamber of every first storage vat (23) and every second storage vat (21).

4. The fire-extinguishing protection system for the battery pack under the condition of high temperature runaway according to claim 1, wherein the fire-extinguishing protection system comprises: the front end and the rear end of each first thermosensitive lead (22) and each second thermosensitive lead (27) are respectively connected with an I-shaped sponge strip (25) which is respectively positioned in the inner cavity of each first storage barrel (23) and each second storage barrel (21).

5. The fire-extinguishing protection system for the battery pack under the condition of high temperature runaway according to claim 1, wherein the fire-extinguishing protection system comprises: the outer walls of each first thermosensitive conducting wire (22) and each second thermosensitive conducting wire (27) are respectively wound with a first thermal fuse (26) and a second thermal fuse (28) which are used for connecting the positive pole and the negative pole of the battery.

6. The fire-extinguishing protection system for the battery pack under the condition of high temperature runaway according to claim 1, wherein the fire-extinguishing protection system comprises: the first storage barrel (23) and the second storage barrel (21) of each fire extinguishing mechanism (2) are equal in height and equal to the vertical height of the inner cavity of the battery outer shell (3).