CN109585726B - Vehicle and battery box, battery module, fire extinguishing component and fire extinguishing container thereof - Google Patents

Vehicle and battery box, battery module, fire extinguishing component and fire extinguishing container thereof Download PDF

Info

Publication number
CN109585726B
CN109585726B CN201710911465.6A CN201710911465A CN109585726B CN 109585726 B CN109585726 B CN 109585726B CN 201710911465 A CN201710911465 A CN 201710911465A CN 109585726 B CN109585726 B CN 109585726B
Authority
CN
China
Prior art keywords
battery
explosion
fire extinguishing
extinguishing agent
proof structure
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN201710911465.6A
Other languages
Chinese (zh)
Other versions
CN109585726A (en
Inventor
曹瑞中
尹利超
周时国
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Yutong Bus Co Ltd
Original Assignee
Yutong Bus Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Yutong Bus Co Ltd filed Critical Yutong Bus Co Ltd
Priority to CN201710911465.6A priority Critical patent/CN109585726B/en
Publication of CN109585726A publication Critical patent/CN109585726A/en
Application granted granted Critical
Publication of CN109585726B publication Critical patent/CN109585726B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62C—FIRE-FIGHTING
    • A62C3/00—Fire prevention, containment or extinguishing specially adapted for particular objects or places
    • A62C3/07—Fire prevention, containment or extinguishing specially adapted for particular objects or places in vehicles, e.g. in road vehicles
    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62C—FIRE-FIGHTING
    • A62C3/00—Fire prevention, containment or extinguishing specially adapted for particular objects or places
    • A62C3/16—Fire prevention, containment or extinguishing specially adapted for particular objects or places in electrical installations, e.g. cableways
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/30—Arrangements for facilitating escape of gases
    • H01M50/375—Vent means sensitive to or responsive to temperature
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/30—Arrangements for facilitating escape of gases
    • H01M50/383—Flame arresting or ignition-preventing means
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/50—Current conducting connections for cells or batteries
    • H01M50/572—Means for preventing undesired use or discharge
    • H01M50/574—Devices or arrangements for the interruption of current
    • H01M50/581—Devices or arrangements for the interruption of current in response to temperature
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10—Energy storage using batteries

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Battery Mounting, Suspending (AREA)

Abstract

The invention relates to the field of battery modules, in particular to a vehicle, a battery box, a battery module, a fire extinguishing component and a fire extinguishing container. The battery fire extinguishing container is provided with a fire extinguishing agent accommodating cavity, and the cavity wall of the fire extinguishing agent accommodating cavity is provided with a battery explosion-proof structure which is used for being correspondingly arranged with a battery unit explosion-proof structure on a battery unit so as to open pressure relief when the battery unit explosion-proof structure is opened, and an accommodating cavity explosion-proof structure which is used for opening pressure relief when the pressure in the fire extinguishing agent accommodating cavity reaches a set value. After the internal pressure of the battery unit exceeds a set value, the explosion-proof structure of the battery unit is opened for pressure relief, the battery explosion-proof structure is flushed by the sprayed high-pressure fluid, and the extinguishing agent in the extinguishing agent accommodating cavity flows out to extinguish the fire of the battery unit. When the instantaneous pressure of the battery unit explosion-proof structure is overlarge, the accommodating cavity explosion-proof structure is flushed away, so that the explosion of the battery unit caused by the overlarge pressure in the battery unit is prevented, and the problem that the explosion of a battery core is caused by the overlarge pressure in the battery unit is easily caused by the conventional battery fire extinguishing container is solved.

Description

Vehicle and battery box, battery module, fire extinguishing component and fire extinguishing container thereof
Technical Field
The invention relates to the field of battery modules, in particular to a vehicle, a battery box, a battery module, a fire extinguishing component and a fire extinguishing container.
Background
Along with the rapid growth of new energy automobile markets, the safety problem of the new energy automobiles is increasingly serious, and the accidents such as smoking, fire and the like of a plurality of new energy automobiles already occur in the current markets, thereby seriously threatening the life safety of passengers. Because the existing new energy automobiles all adopt batteries as power sources of a power system, safety accidents such as smoke, fire and explosion are easy to occur to the batteries under the conditions of overcharging, overdischarging, extrusion and the like in the vehicle charging process. In recent years, a plurality of electric vehicles have the conditions of fire, explosion and even casualties in the running process, the collision of the vehicles and the natural disaster process, and accident vehicles comprise passenger vehicles, commercial vehicles and the like.
Along with the rapid promotion of the market share of new energy automobiles and the longer and longer requirement on the driving mileage of the new energy automobiles, the specific energy density requirement of the power battery is also greatly promoted, and along with the promotion of the specific energy density of the power battery, the safety requirement of the power battery is promoted. According to national and industry standards, power cells are required to be free from thermal runaway and thermal runaway expansion under abusive conditions such as overcharge, overdischarge, high temperature, etc. The application publication number is CN103561822A, the chinese patent of application publication date 2014.02.05 discloses a battery housing for lithium cell, be provided with the feeder that is used for putting out a fire in the battery housing, the electric core has fracture portion, wherein the battery housing is the shell that refers to battery module, the electric core is the battery unit that constitutes battery module promptly, the battery unit includes battery unit housing and apron, be equipped with the explosion-proof valve of battery unit on the apron, the battery fracture portion sets up the explosion-proof valve of battery unit on the apron promptly. The feeder is a fire extinguishing container, the feeder is provided with a thinning part, the thinning part of the feeder is arranged towards the breaking part of the battery unit, after high-pressure fluid in the battery unit is sprayed out through the breaking part, the thinning part of the feeder is opened, and fire extinguishing medium in the feeder flows to the breaking part to achieve the aim of fire extinguishing, but when the pressure of the fluid sprayed out by the battery unit is overlarge, the feeder is arranged at the explosion-proof valve of the battery unit to prevent the pressure in the battery unit from being reduced, and the problem that the pressure in the battery unit is overlarge to cause explosion of the battery unit is easily caused.
Disclosure of Invention
The invention aims to provide a battery fire extinguishing container so as to solve the problem that the conventional battery fire extinguishing container is easy to cause explosion of a battery core due to overlarge internal pressure of a battery unit. In addition, the invention also aims to provide a vehicle, a battery box, a battery module and a battery fire extinguishing component using the battery fire extinguishing container.
In order to achieve the above purpose, the first technical scheme of the battery fire extinguishing container of the invention is as follows: the battery fire extinguishing container is provided with a fire extinguishing agent accommodating cavity, and the cavity wall of the fire extinguishing agent accommodating cavity is provided with a battery explosion-proof structure which is used for being correspondingly arranged with a battery unit explosion-proof structure on a battery unit so as to open pressure relief when the battery unit explosion-proof structure is opened, and an accommodating cavity explosion-proof structure which is used for opening pressure relief when the pressure in the fire extinguishing agent accommodating cavity reaches a set value.
The second technical scheme of the battery fire extinguishing container is as follows: on the basis of the first technical scheme of the battery fire extinguishing container, at least two fire extinguishing agent accommodating cavities are arranged.
The third technical scheme of the battery fire extinguishing container is as follows: on the basis of the second technical scheme of the battery fire extinguishing container, at least one pair of adjacent fire extinguishing agent accommodating cavities are provided with the common accommodating cavity explosion-proof structure, and the common accommodating cavity explosion-proof structure is a pair of accommodating cavity explosion-proof structures which are communicated with the corresponding two fire extinguishing agent accommodating cavities when the pressure relief is opened.
The fourth technical scheme of the battery fire extinguishing container is as follows: on the basis of the third technical scheme of the battery fire extinguishing container, at least one of the fire extinguishing agent containing cavities with the explosion-proof structure for the containing cavity is also provided with an explosion-proof structure for the external containing cavity, wherein the explosion-proof structure for the external containing cavity is used for communicating the fire extinguishing agent containing cavity with the outside of the battery fire extinguishing container when the pressure relief is opened.
The fifth technical scheme of the battery fire extinguishing container of the invention is as follows: on the basis of the fourth technical scheme of the battery fire extinguishing container, the adjacent fire extinguishing agent accommodating cavities are provided with the pair of inner accommodating cavity explosion-proof structures, and the pair of outer accommodating cavity explosion-proof structures are arranged on the cavity walls of the fire extinguishing agent accommodating cavities at two ends.
The sixth technical scheme of the battery fire extinguishing container of the invention is as follows: on the basis of any one of the first to fifth technical solutions of the battery fire extinguishing container of the present invention, at least two battery explosion-proof structures of the fire extinguishing agent accommodating cavity are provided.
The seventh technical scheme of the battery fire extinguishing container of the invention is as follows: on the basis of any one of the first to fifth technical solutions of the battery fire extinguishing container of the present invention, at least two explosion-proof structures of the containing cavities of the fire extinguishing agent containing cavities are provided.
The eighth technical scheme of the battery fire extinguishing container of the invention is as follows: on the basis of any one of the first to fifth technical schemes of the battery fire extinguishing container, the opening pressure of the explosion-proof structure of the accommodating cavity is smaller than or equal to the opening pressure of the explosion-proof structure of the battery.
The ninth technical scheme of the battery fire extinguishing container of the invention is as follows: on the basis of any one of the first to fifth technical schemes of the battery fire extinguishing container, the opening pressure of the battery explosion-proof structure is smaller than or equal to the opening pressure of the corresponding battery unit explosion-proof valve on the battery cover plate.
The tenth technical scheme of the battery fire extinguishing container is as follows: on the basis of any one of the first to fifth technical schemes of the battery fire extinguishing container, the battery fire extinguishing container comprises a body, wherein an accommodating cavity explosion-proof valve and a battery explosion-proof valve are arranged on the body, the accommodating cavity explosion-proof valve forms the accommodating cavity explosion-proof structure, and the battery explosion-proof valve forms the battery explosion-proof structure.
The eleventh technical scheme of the battery fire extinguishing container of the invention is as follows: on the basis of any one of the first to fifth technical schemes of the battery fire extinguishing container, the battery fire extinguishing container is provided with a fire extinguishing agent filling port communicated with the fire extinguishing agent accommodating cavity.
The twelfth technical scheme of the battery fire extinguishing container of the invention is as follows: on the basis of any one of the first to fifth technical schemes of the battery fire extinguishing container, the battery fire extinguishing container is provided with a fixing structure for fixing the battery module fixing end plate.
The thirteenth technical scheme of the battery fire extinguishing container of the invention is as follows: in accordance with one of the first to fifth aspects of the battery fire extinguishing container of the present invention, the battery fire extinguishing container has a container bonding surface for bonding and fixing with the battery cell.
The fourteenth technical scheme of the battery fire extinguishing container of the invention is as follows: on the basis of any one of the first to fifth technical schemes of the battery fire extinguishing container, the fire extinguishing agent containing cavities are in one-to-one correspondence with the battery explosion-proof structures.
In order to achieve the above purpose, the first technical scheme of the battery fire extinguishing unit of the invention is as follows: the battery fire-extinguishing container comprises a fire-extinguishing agent containing cavity, wherein the fire-extinguishing agent containing cavity is internally provided with a fire-extinguishing agent, and the cavity wall of the fire-extinguishing agent containing cavity is provided with a battery explosion-proof structure which is used for corresponding to a battery unit explosion-proof structure on a battery unit to open the pressure release when the battery unit explosion-proof structure is opened and a containing cavity explosion-proof structure which is used for opening the pressure release when the pressure in the fire-extinguishing agent containing cavity reaches a set value.
The second technical scheme of the battery fire extinguishing unit is as follows: on the basis of the first technical scheme of the battery fire extinguishing unit, at least two fire extinguishing agent accommodating cavities are arranged.
The third technical scheme of the battery fire extinguishing unit of the invention is as follows: on the basis of the second technical scheme of the battery fire extinguishing unit, at least one pair of adjacent fire extinguishing agent accommodating cavities are provided with the common accommodating cavity explosion-proof structure, and the common accommodating cavity explosion-proof structure is a pair of accommodating cavity explosion-proof structures which are communicated with the corresponding two fire extinguishing agent accommodating cavities when pressure relief is opened.
The fourth technical scheme of the battery fire extinguishing unit of the invention is as follows: on the basis of the third technical scheme of the battery fire extinguishing unit, at least one of the fire extinguishing agent containing cavities with the explosion-proof structure for the containing cavity is also provided with an explosion-proof structure for the external containing cavity, wherein the explosion-proof structure for the external containing cavity is used for communicating the fire extinguishing agent containing cavity with the outside of the battery fire extinguishing container when the pressure relief is opened.
The fifth technical scheme of the battery fire extinguishing unit of the invention is as follows: on the basis of the fourth technical scheme of the battery fire extinguishing unit, the adjacent fire extinguishing agent accommodating cavities are provided with the pair of inner accommodating cavity explosion-proof structures, and the pair of outer accommodating cavity explosion-proof structures are arranged on the cavity walls of the fire extinguishing agent accommodating cavities at two ends.
The sixth technical scheme of the battery fire extinguishing unit of the invention is as follows: on the basis of any one of the first to fifth technical solutions of the battery fire extinguishing unit of the present invention, at least two battery explosion-proof structures of the fire extinguishing agent accommodating chambers are provided.
The seventh technical scheme of the battery fire extinguishing unit of the invention is as follows: on the basis of any one of the first to fifth technical solutions of the battery fire extinguishing unit of the present invention, at least two explosion-proof structures of the containing chambers of the fire extinguishing agent containing chamber are provided.
The eighth technical scheme of the battery fire extinguishing unit of the invention is as follows: on the basis of any one of the first to fifth technical schemes of the battery fire extinguishing unit, the opening pressure of the explosion-proof structure of the accommodating cavity is smaller than or equal to the opening pressure of the explosion-proof structure of the battery.
The ninth technical scheme of the battery fire extinguishing unit of the invention is as follows: on the basis of any one of the first to fifth technical schemes of the battery fire extinguishing unit, the opening pressure of the battery explosion-proof structure is smaller than or equal to the opening pressure of the battery unit explosion-proof valve on the corresponding battery cover plate.
The tenth technical scheme of the battery fire extinguishing unit of the invention is as follows: on the basis of any one of the first to fifth technical schemes of the battery fire extinguishing unit, the battery fire extinguishing container comprises a body, wherein an accommodating cavity explosion-proof valve and a battery explosion-proof valve are arranged on the body, the accommodating cavity explosion-proof valve forms the accommodating cavity explosion-proof structure, and the battery explosion-proof valve forms the battery explosion-proof structure.
The eleventh technical scheme of the battery fire extinguishing unit of the invention is as follows: on the basis of any one of the first to fifth technical schemes of the battery fire extinguishing unit, the battery fire extinguishing container is provided with a fire extinguishing agent filling port communicated with the fire extinguishing agent accommodating cavity.
The twelfth technical scheme of the battery fire extinguishing unit of the invention is as follows: on the basis of any one of the first to fifth technical schemes of the battery fire extinguishing unit, the battery fire extinguishing container is provided with a fixing structure for fixing the battery module fixing end plate.
The thirteenth technical scheme of the battery fire extinguishing unit of the invention is as follows: in accordance with one of the first to fifth aspects of the battery fire extinguishing unit of the present invention, the battery fire extinguishing container has a container bonding surface for bonding and fixing with the battery cell.
The fourteenth technical scheme of the battery fire extinguishing unit of the invention is as follows: on the basis of any one of the first to fifth technical schemes of the battery fire extinguishing unit, the fire extinguishing agent containing cavities are in one-to-one correspondence with the battery explosion-proof structures.
In order to achieve the above object, a first technical scheme of the battery module of the present invention is as follows: including the battery cell, be equipped with the explosion-proof structure of battery cell on the battery cell, the battery module still includes battery extinguishing unit, battery extinguishing unit includes battery extinguishing container, battery extinguishing container has the fire extinguishing agent and holds the chamber, the fire extinguishing agent holds the intracavity and stores the fire extinguishing agent, be equipped with on the chamber wall that the fire extinguishing agent held the chamber with the explosion-proof structure of battery cell on the battery cell correspond in order to open the explosion-proof structure of battery cell pressure release when the explosion-proof structure of battery cell opens and be used for opening the explosion-proof structure of holding the chamber pressure release when the pressure reaches the setting value in the fire extinguishing agent holds the intracavity pressure.
The second technical scheme of the battery module is as follows: on the basis of the first technical scheme of the battery module, at least two fire extinguishing agent accommodating cavities are arranged.
The third technical scheme of the battery module is as follows: on the basis of the second technical scheme of the battery module, at least one pair of adjacent fire extinguishing agent accommodating cavities are provided with the common accommodating cavity explosion-proof structure, and the common accommodating cavity explosion-proof structure is a pair of accommodating cavity explosion-proof structures which are communicated with the corresponding two fire extinguishing agent accommodating cavities when pressure relief is opened.
The fourth technical scheme of the battery module is as follows: on the basis of the third technical scheme of the battery module, at least one of the fire extinguishing agent containing cavities with the explosion-proof structure for the containing cavity is also provided with an explosion-proof structure for the external containing cavity, wherein the explosion-proof structure for the external containing cavity is used for communicating the fire extinguishing agent containing cavity with the outside of the battery fire extinguishing container when the pressure relief is opened.
The fifth technical scheme of the battery module is as follows: on the basis of the fourth technical scheme of the battery module, the adjacent fire extinguishing agent accommodating cavities are provided with the pair of inner accommodating cavity explosion-proof structures, and the pair of outer accommodating cavity explosion-proof structures are arranged on the cavity walls of the fire extinguishing agent accommodating cavities at two ends.
The sixth technical scheme of the battery module is as follows: on the basis of any one of the first to fifth technical solutions of the battery module of the present invention, at least two battery explosion-proof structures of the fire extinguishing agent containing cavity are provided.
The seventh technical scheme of the battery module is as follows: on the basis of any one of the first to fifth technical solutions of the battery module of the present invention, at least two explosion-proof structures of the accommodating chambers of the fire extinguishing agent accommodating chamber are provided.
The eighth technical scheme of the battery module is as follows: on the basis of any one of the first to fifth technical solutions of the battery module of the present invention, the opening pressure of the explosion-proof structure of the accommodating cavity is less than or equal to the opening pressure of the explosion-proof structure of the battery.
The ninth technical scheme of the battery module is as follows: on the basis of any one of the first to fifth technical schemes of the battery module, the opening pressure of the battery explosion-proof structure is smaller than or equal to the opening pressure of the battery unit explosion-proof valve on the corresponding battery cover plate.
The tenth technical scheme of the battery module is as follows: on the basis of any one of the first to fifth technical schemes of the battery module, the battery fire extinguishing container comprises a body, wherein an accommodating cavity explosion-proof valve and a battery explosion-proof valve are arranged on the body, the accommodating cavity explosion-proof valve forms the accommodating cavity explosion-proof structure, and the battery explosion-proof valve forms the battery explosion-proof structure.
The eleventh technical scheme of the battery module of the invention is as follows: on the basis of any one of the first to fifth technical solutions of the battery module of the present invention, a fire extinguishing agent filling port communicating with the fire extinguishing agent accommodating chamber is provided on the battery fire extinguishing container.
The twelfth technical scheme of the battery module is as follows: on the basis of any one of the first to fifth technical schemes of the battery module, the battery module comprises a battery module fixing end plate, and a fixing structure fixed with the battery module fixing end plate is arranged on the battery fire extinguishing container.
The thirteenth technical scheme of the battery module of the invention is as follows: in the battery module according to any one of the first to fifth aspects of the present invention, the battery fire extinguishing container has a container bonding surface to be bonded and fixed to the battery cell.
The fourteenth technical scheme of the battery module is as follows: on the basis of any one of the first to fifth technical schemes of the battery module, the fire extinguishing agent containing cavities are in one-to-one correspondence with the battery explosion-proof structures.
In order to achieve the above object, a first technical scheme of the battery box of the present invention is as follows: including the box and set up the battery module in the box, battery module includes the battery cell, the battery cell is equipped with battery cell explosion-proof structure, battery module still includes battery fire extinguishing unit, battery fire extinguishing unit includes battery fire extinguishing container, battery fire extinguishing container has the fire extinguishing agent and holds the chamber, fire extinguishing agent holds the intracavity and stores the fire extinguishing agent, be equipped with on the chamber wall that fire extinguishing agent held the chamber with battery cell explosion-proof structure on the battery cell corresponds in order to open the battery explosion-proof structure of pressure release when battery cell explosion-proof structure opens and be used for opening the chamber explosion-proof structure that holds of pressure release when fire extinguishing agent holds intracavity pressure and reach the setting value.
The second technical scheme of the battery box is as follows: on the basis of the first technical scheme of the battery box, at least two fire extinguishing agent containing cavities are arranged.
The third technical scheme of the battery box is as follows: on the basis of the second technical scheme of the battery box, at least one pair of adjacent fire extinguishing agent accommodating cavities are provided with the common accommodating cavity explosion-proof structure, and the common accommodating cavity explosion-proof structure is a pair of accommodating cavity explosion-proof structures which are communicated with the corresponding two fire extinguishing agent accommodating cavities when the pressure relief is opened.
The fourth technical scheme of the battery box is as follows: on the basis of the third technical scheme of the battery box, at least one of the fire extinguishing agent containing cavities with the explosion-proof structure for the containing cavity is also provided with an explosion-proof structure for the external containing cavity, wherein the explosion-proof structure for the external containing cavity is used for communicating the fire extinguishing agent containing cavity with the outside of the battery fire extinguishing container when the pressure relief is opened.
The fifth technical scheme of the battery box of the invention is as follows: on the basis of the fourth technical scheme of the battery box, the adjacent fire extinguishing agent accommodating cavities are provided with the pair of inner accommodating cavity explosion-proof structures, and the pair of outer accommodating cavity explosion-proof structures are arranged on the cavity walls of the fire extinguishing agent accommodating cavities at two ends.
The sixth technical scheme of the battery box of the invention is as follows: on the basis of any one of the first to fifth technical solutions of the battery case of the present invention, at least two battery explosion-proof structures of the fire extinguishing agent accommodating chamber are provided.
The seventh technical scheme of the battery box of the invention is as follows: on the basis of any one of the first to fifth technical solutions of the battery box of the present invention, at least two explosion-proof structures of the accommodating chambers of the fire extinguishing agent accommodating chamber are provided.
The eighth technical scheme of the battery box of the invention is as follows: on the basis of any one of the first to fifth technical solutions of the battery box of the present invention, the opening pressure of the explosion-proof structure of the accommodating cavity is smaller than or equal to the opening pressure of the explosion-proof structure of the battery.
The ninth technical scheme of the battery box of the invention is as follows: on the basis of any one of the first to fifth technical schemes of the battery box, the opening pressure of the battery explosion-proof structure is smaller than or equal to the opening pressure of the corresponding battery unit explosion-proof valve on the battery cover plate.
The tenth technical scheme of the battery box is as follows: on the basis of any one of the first to fifth technical schemes of the battery box, the battery fire extinguishing container comprises a body, wherein an accommodating cavity explosion-proof valve and a battery explosion-proof valve are arranged on the body, the accommodating cavity explosion-proof valve forms the accommodating cavity explosion-proof structure, and the battery explosion-proof valve forms the battery explosion-proof structure.
The eleventh technical scheme of the battery box of the invention is as follows: on the basis of any one of the first to fifth technical solutions of the battery case of the present invention, the battery fire extinguishing container is provided with a fire extinguishing agent filling port communicating with the fire extinguishing agent accommodating chamber.
The twelfth technical scheme of the battery box is as follows: on the basis of any one of the first to fifth technical schemes of the battery box, the battery module comprises a battery module fixing end plate, and a fixing structure fixed with the battery module fixing end plate is arranged on the battery fire extinguishing container.
The thirteenth technical scheme of the battery box of the invention is as follows: in the battery case according to any one of the first to fifth aspects of the present invention, the battery fire extinguishing container has a container bonding surface to be bonded and fixed to the battery cell.
The fourteenth technical scheme of the battery box of the invention is as follows: on the basis of any one of the first to fifth technical schemes of the battery box, the fire extinguishing agent containing cavities are in one-to-one correspondence with the battery explosion-proof structures.
In order to achieve the above object, a first technical solution of the vehicle of the present invention is: including automobile body and the battery box of fixing on the automobile body, the battery box includes the box and sets up the battery module in the box, the battery module includes the battery cell, the battery cell is equipped with battery cell explosion-proof structure, battery module still includes battery extinguishing component, battery extinguishing component includes battery extinguishing container, battery extinguishing container has the fire extinguishing agent and holds the chamber, fire extinguishing agent holds the intracavity and stores the fire extinguishing agent, be equipped with on the chamber wall that fire extinguishing agent held the chamber and correspond with the battery cell explosion-proof structure on the battery cell in order to open the battery explosion-proof structure of pressure release when battery cell explosion-proof structure opens and be used for opening the chamber explosion-proof structure that holds of pressure release when fire extinguishing agent holds intracavity pressure and reach the setting value.
The second technical scheme of the vehicle is as follows: on the basis of the first technical aspect of the vehicle of the present invention, the fire extinguishing agent housing chamber is provided with at least two.
The third technical scheme of the vehicle of the invention is as follows: on the basis of the second technical scheme of the vehicle, at least one pair of adjacent fire extinguishing agent accommodating cavities are provided with the common accommodating cavity explosion-proof structure, and the common accommodating cavity explosion-proof structure is a pair of accommodating cavity explosion-proof structures which are communicated with the corresponding two fire extinguishing agent accommodating cavities when pressure relief is opened.
The fourth technical scheme of the vehicle of the invention is as follows: on the basis of the third technical scheme of the vehicle, at least one of the fire extinguishing agent containing cavities with the explosion-proof structure for the containing cavity is also provided with an explosion-proof structure for the external containing cavity, wherein the explosion-proof structure for the external containing cavity is used for communicating the fire extinguishing agent containing cavity with the outside of the battery fire extinguishing container when the pressure relief is opened.
A fifth technical solution of the vehicle of the present invention is: on the basis of the fourth technical scheme of the vehicle, the adjacent fire extinguishing agent accommodating cavities are provided with the pair of inner accommodating cavity explosion-proof structures, and the pair of outer accommodating cavity explosion-proof structures are arranged on the cavity walls of the fire extinguishing agent accommodating cavities at two ends.
The sixth technical scheme of the vehicle of the invention is that: on the basis of any one of the first to fifth technical aspects of the vehicle of the present invention, the battery explosion-proof structure of the fire extinguishing agent housing chamber is provided with at least two.
The seventh technical scheme of the vehicle of the invention is that: on the basis of any one of the first to fifth technical aspects of the vehicle of the present invention, the containing cavity explosion-proof structure of the fire extinguishing agent containing cavity is provided with at least two.
An eighth technical scheme of the vehicle of the invention is as follows: on the basis of any one of the first to fifth technical aspects of the vehicle of the present invention, the opening pressure of the explosion-proof structure of the accommodating chamber is smaller than or equal to the opening pressure of the explosion-proof structure of the battery.
A ninth technical solution of the vehicle of the present invention is: in the vehicle according to any one of the first to fifth aspects of the present invention, the battery fire extinguishing container has a container bonding surface to be bonded and fixed to the battery cell.
The tenth technical scheme of the vehicle of the invention is as follows: on the basis of any one of the first to fifth technical solutions of the vehicle of the present invention, the opening pressure of the battery explosion-proof structure is smaller than or equal to the opening pressure of the battery unit explosion-proof valve on the corresponding battery cover plate.
An eleventh technical solution of the vehicle of the present invention is: on the basis of any one of the first to fifth technical schemes of the vehicle, the battery fire extinguishing container comprises a body, wherein an accommodating cavity explosion-proof valve and a battery explosion-proof valve are arranged on the body, the accommodating cavity explosion-proof valve forms the accommodating cavity explosion-proof structure, and the battery explosion-proof valve forms the battery explosion-proof structure.
A twelfth technical solution of the vehicle of the present invention is: on the basis of any one of the first to fifth technical aspects of the vehicle of the present invention, the battery fire extinguishing container is provided with a fire extinguishing agent filler communicating with the fire extinguishing agent accommodating chamber.
A thirteenth aspect of the vehicle of the invention is: on the basis of any one of the first to fifth technical solutions of the vehicle of the present invention, the battery module includes a battery module fixing end plate, and the battery fire extinguishing container is provided with a fixing structure fixed with the battery module fixing end plate.
A fourteenth technical means of the vehicle of the present invention is: on the basis of any one of the first to fifth technical solutions of the vehicle of the present invention, the fire extinguishing agent accommodating chambers are in one-to-one correspondence with the battery explosion-proof structures.
The beneficial effects of the invention are as follows: the fire extinguishing agent holds the battery explosion-proof structure that is used for setting up corresponding with the battery unit explosion-proof structure on the battery unit and is used for opening the chamber explosion-proof structure that holds of pressure release after the pressure reaches the setting value in the fire extinguishing agent holds the intracavity on the chamber wall of chamber, battery unit explosion-proof structure spun high pressure fluid is with battery explosion-proof structure flushing open, and the fire extinguishing agent that the fire extinguishing agent held in the intracavity flows out and puts out a fire to the battery unit. When the instantaneous pressure of the battery unit explosion-proof structure is too high, the flushed fluid still has certain pressure after the battery explosion-proof structure is flushed, and the accommodating cavity explosion-proof structure is flushed at the moment, so that the explosion of the battery unit caused by the too high pressure in the battery unit is prevented, and the problem that the explosion of the battery core is caused by the too high pressure in the battery unit is solved by the conventional battery fire extinguishing container.
Furthermore, the fire extinguishing agent holds the chamber and is equipped with two at least, and a battery fire extinguishing container corresponds two at least battery unit during the use, easy to assemble improves assembly speed.
Further, at least a pair of adjacent fire extinguishing agent holds the chamber and has the sharing hold the chamber explosion-proof structure, the chamber explosion-proof structure that holds for two corresponding fire extinguishing agent and hold the chamber intercommunication to holding the chamber explosion-proof structure when opening the pressure release, conveniently will hold chamber explosion-proof structure spun high-pressure gas and spout to the assigned position, hold the chamber explosion-proof structure at the sharing simultaneously and be washed out the back, two fire extinguishing agent hold the intracavity fire extinguishing agent and can correspond a battery unit, fire extinguishing effect is better.
Further, at least one of the fire extinguishing agent containing cavities with the internal containing cavity explosion-proof structure is also provided with an external containing cavity explosion-proof structure which is used for communicating the fire extinguishing agent containing cavity with the outside of the battery fire extinguishing container when the pressure relief is opened. The pressure can be discharged out of the battery fire extinguishing container when the pressure in the battery unit is overlarge.
Further, the adjacent fire extinguishing agent accommodating cavities are provided with the pair of inner accommodating cavity explosion-proof structures, and the pair of outer accommodating cavity explosion-proof structures are arranged on the cavity walls of the fire extinguishing agent accommodating cavities at two ends. The battery fire extinguishing container can be arranged at the position of the explosion-proof structure of the outer accommodating cavity according to actual conditions, and meanwhile, under certain conditions, the fire extinguishing agent in each fire extinguishing agent accommodating cavity can correspond to one battery unit, so that the fire extinguishing effect is improved.
Further, the opening pressure of the explosion-proof structure of the accommodating cavity is smaller than or equal to that of the battery explosion-proof structure, the opening pressure of the battery explosion-proof structure is smaller than or equal to that of the explosion-proof valve of the battery unit on the battery cover plate, and the sensitivity of the battery fire extinguishing container is improved.
Further, the opening pressure of the battery explosion-proof structure is smaller than or equal to the opening pressure of the battery unit explosion-proof valve on the battery cover plate, and the explosion-proof sensitivity of the battery fire-extinguishing container is improved.
Further, the battery fire extinguishing container comprises a body, an accommodating cavity explosion-proof valve arranged on the body and a battery explosion-proof valve arranged on the body, wherein the accommodating cavity explosion-proof valve forms an accommodating cavity explosion-proof structure, the battery explosion-proof valve forms the battery explosion-proof structure, the corresponding structure is formed by arranging the valve, the processing is convenient, and the valve is used as a standard component, so that the standard of the battery fire extinguishing container can be unified.
Drawings
Fig. 1 is a schematic structural view of a specific embodiment 1 of a battery module according to the present invention;
fig. 2 is a schematic structural view of a battery fire extinguishing container of embodiment 1 of the battery module of the present invention;
fig. 3 is a top view of a battery fire extinguishing container of embodiment 1 of the battery module of the present invention;
Fig. 4 is a bottom view of a battery fire extinguishing container of embodiment 1 of the battery module of the present invention;
fig. 5 is a partial sectional view of a battery fire extinguishing container of a specific embodiment 1 of a battery module according to the present invention;
fig. 6 is a partial sectional view of embodiment 1 of the battery module of the present invention;
fig. 7 is a partial sectional view of a battery module according to another view angle of embodiment 1 of the present invention;
fig. 8 is a schematic view showing an end structure of a battery fire extinguishing container of embodiment 1 of the battery module of the present invention;
fig. 9 is a schematic structural view of embodiment 3 of the battery module of the present invention;
fig. 10 is a schematic structural view of embodiment 4 of the battery module of the present invention;
fig. 11 is a schematic structural view of a specific embodiment 5 of a battery module according to the present invention;
fig. 12 is a schematic structural view of embodiment 6 of the battery module of the present invention;
fig. 13 is a schematic structural view of embodiment 7 of the battery module of the present invention;
fig. 14 is a schematic structural view of embodiment 8 of the battery module of the present invention.
Detailed Description
Embodiments of the present invention will be further described with reference to the accompanying drawings.
In the embodiment 1 of the battery module of the present invention, as shown in fig. 1, the battery module includes a battery module fixing end plate 1 and a battery unit 2 clamped between the two battery module fixing end plates 1, the battery unit 2 includes a battery case 21 and a battery cover plate 22 fixed on the battery case 21, a positive electrode terminal 23 and a negative electrode terminal 24 are provided on the battery cover plate 22, as shown in fig. 4, a battery unit explosion-proof valve 25 is provided between the positive electrode terminal 23 and the negative electrode terminal 24, the battery unit explosion-proof valve 25 forms a battery unit explosion-proof structure, and pressure in the battery unit 2 is released through the battery unit explosion-proof valve 25 after exceeding a set value.
As shown in fig. 2 to 4, the battery module further includes a bar-shaped battery fire extinguishing unit including a battery fire extinguishing container 3, the battery fire extinguishing container 3 having a fire extinguishing agent receiving chamber 31 in one-to-one correspondence with the battery cells 2, and the fire extinguishing agent is stored in the fire extinguishing agent receiving chamber. The chamber walls of each extinguishing agent containing chamber 31 are provided with a containing chamber explosion-proof valve 32 for opening pressure relief when the pressure in the extinguishing agent containing chamber reaches a set value and a battery explosion-proof valve 33 for opening pressure relief when the battery explosion-proof valve 25 is opened, wherein the battery explosion-proof valve 33 is arranged towards the battery explosion-proof valve 25 of the battery unit 2. The housing chamber explosion-proof valve 32 in the present embodiment constitutes a housing chamber explosion-proof structure provided on the chamber wall of the fire extinguishing agent housing chamber 31, and the battery explosion-proof valve 33 constitutes a battery explosion-proof structure provided on the chamber wall of the fire extinguishing agent housing chamber 31.
As shown in fig. 5 and 8, two kinds of the fire-extinguishing agent housing chamber explosion-proof valves 32 are provided, one of which is a housing chamber explosion-proof valve shared by adjacent fire-extinguishing agent housing chambers, the shared housing chamber explosion-proof valve is a pair of housing chamber explosion-proof valves 321 which communicate the respective two fire-extinguishing agent housing chambers when pressure release is opened, and each of the fire-extinguishing agent housing chambers 31 has a pair of housing chamber explosion-proof valves 321. The pair-containing cavity explosion-proof 321 valve in this embodiment constitutes a pair-containing cavity explosion-proof structure that communicates the corresponding two fire extinguishing agent containing cavities when the pressure relief is opened. The other is an external accommodating cavity explosion-proof valve 322 which communicates the fire extinguishing agent accommodating cavity 31 with the outside of the battery fire extinguishing container 3 when the pressure relief is opened, and the external accommodating cavity explosion-proof valve forms an external accommodating cavity explosion-proof structure. Adjacent fire-extinguishing agent housing chambers 31 have a common housing chamber wall, and a common housing chamber explosion-proof valve 32 is provided on the housing chamber wall common to the adjacent fire-extinguishing agent housing chambers 31. In this embodiment, the adjacent fire extinguishing agent housing chambers 31 each have a pair of housing chamber explosion-proof valves 321, the fire extinguishing agent housing chambers 31 are arranged side by side in a long-strip shape, and the outer housing chamber explosion-proof valves 322 are provided on the chamber walls of the fire extinguishing agent housing chambers 31 at both ends.
As shown in fig. 5 and 6, the fire extinguishing agent housing chamber 31 in the present embodiment is square, in which a battery explosion-proof valve 33 is provided at the bottom of the fire extinguishing agent housing chamber 31, a housing chamber explosion-proof valve 32 is provided on the side wall of the fire extinguishing agent housing chamber 31, and the housing chamber explosion-proof valve 32 on the side wall of the fire extinguishing agent housing chamber 31 is a valve common to two adjacent fire extinguishing agent housing chambers 31. The top cavity wall of the fire extinguishing agent accommodating cavity 31 is provided with a fire extinguishing agent filling port 34 which is convenient for filling the fire extinguishing agent accommodating cavity 31 with the fire extinguishing agent.
In order to ensure the fire extinguishing sensitivity and explosion-proof sensitivity of the battery fire extinguishing container 3, in this embodiment, the opening pressure of the battery explosion-proof valve 33 on the battery fire extinguishing container 3 is smaller than or equal to the opening pressure of the battery cell explosion-proof valve 25, and the opening pressure of the housing chamber explosion-proof valve 32 is smaller than or equal to the opening pressure of the battery explosion-proof valve 33. When the pressure value in the battery unit 2 is larger than the opening pressure of the battery unit explosion-proof valve 25, the fluid in the battery unit 2 rushes out of the battery unit explosion-proof valve 25, the pressure of the rushed-out high-pressure fluid on the battery explosion-proof valve 33 is larger than the opening pressure of the battery explosion-proof valve 33, the battery explosion-proof valve 33 is rushed out, and the fire extinguishing agent flows out of the battery explosion-proof valve 33 and flows into the battery through the battery unit explosion-proof valve 25 to extinguish or prevent fire. When the pressure of the fluid flushed out through the battery unit explosion-proof valve 25 is too high, the pressure in the fire extinguishing agent accommodating cavity 31 is larger than the opening pressure of the accommodating cavity explosion-proof valve 32, and the accommodating cavity explosion-proof valve 32 of the battery fire extinguishing container 3 is opened to release the pressure in the fire extinguishing agent accommodating cavity 31. When the pressure is sufficiently large, the housing explosion valves 32 of the fire extinguishing agent housing chambers 31 are all opened, all the fire extinguishing agent housing chambers 31 communicate, and finally the pressure is discharged through the housing explosion valves 32 toward the outside of the battery fire extinguishing container 3. When the pressure is insufficient to open the containing chamber explosion-proof valve 32 toward the outside of the battery fire extinguishing container 3, and the single fire extinguishing agent containing chamber 31 is difficult to satisfy the pressure release requirement of the battery unit 2, a situation may occur in which the containing chamber explosion-proof valves 32 of the adjacent plurality of fire extinguishing agent containing chambers 31 are opened to achieve communication, and at this time, the fire extinguishing agent in the plurality of fire extinguishing agent containing chambers 31 performs fire extinguishing or fire preventing treatment for one battery unit 2. If all the fire extinguishing agent containing cavities 31 cannot meet the pressure release requirement of the battery unit, the explosion-proof valve of the external containing cavity at the end part is opened to release pressure outside the battery fire extinguishing container, and the condition that the explosion-proof valve of the internal containing cavity is not completely opened and directly releases pressure through the explosion-proof valve of the external containing cavity is also possible. The same principle may also be applied to a case where a plurality of fire extinguishing agent receiving chambers 31 are subjected to fire extinguishing or preventing treatment corresponding to two or more battery cells 2.
As shown in fig. 1 and 7, the battery fire extinguishing container 3 in this embodiment is of a strip structure, the width dimension of which is smaller than the distance between the positive electrode terminal 23 and the negative electrode terminal 24 on the battery unit 2, when in use, the battery fire extinguishing container 3 is fixed between the positive electrode terminal 23 and the negative electrode terminal 24 of each battery unit 2, both ends of the battery fire extinguishing container 3 are provided with fixing holes 35, the fixing holes 35 are fixed on the battery module fixing end plates 1 at both ends of the battery module, and after the fixing, the valve ports of the battery explosion-proof valves 33 of the battery fire extinguishing container 3 are aligned with the valve ports of the battery explosion-proof valves 25. The battery fire extinguishing container 3 is adhered and fixed with the cover plate 22 of the battery unit 2, so that the fixing strength of the battery fire extinguishing container is improved. In other embodiments, the battery fire extinguishing container and the battery unit can be fixed by laser welding.
The fire extinguishing agent containing cavity 31 of the battery fire extinguishing container 3 is filled with the fire extinguishing agent Kong Jiazhu, and the fire extinguishing agent has excellent electrical insulation performance, so that the battery module can establish a comprehensive and effective insulation network, and the release of battery energy is delayed. The fire extinguishing agent filled in the embodiment can be stored at normal pressure, the storage time is long and is equivalent to the service life of the battery module, and the fire extinguishing agent does not need to be replaced within the quality guarantee period of the battery. In the embodiment, the fire extinguishing of the battery fire extinguishing container 3 is passive fire extinguishing, and the battery fire extinguishing container 3 does not need to be provided with a detection device and a driving device.
In the embodiment, insulation protection is adopted between the battery fire extinguishing container 3 and the battery unit 2, and plastic plating treatment is carried out on the surface of the battery module. In other embodiments, insulation materials or other structures may be added between the battery fire extinguishing container 3 and the battery module for insulation protection.
The manufacturing process of the battery module comprises the following steps:
firstly, manufacturing a battery unit, namely mixing materials, coating, rolling, slitting, manufacturing pole pieces according to technological parameters, and manufacturing the battery unit 2 by winding or laminating.
In a second step, the battery fire extinguishing container 3 is manufactured and the fire extinguishing agent is passed through the filling Kong Jiaru of the fire extinguishing agent receiving chamber 31 and sealed according to the process parameters.
The fire extinguishing agent can be TKD-8431 fire extinguishing agent produced by Beijing century joint protection fire-fighting new technology Co., ltd or Novec 1230 fire extinguishing agent produced by 3M company, and the specific parameters are shown in Table 1.
TABLE 1 parameters of extinguishing agent
And thirdly, manufacturing the battery unit 2 into a battery module according to the group technical parameters and the process.
And fourthly, assembling the battery fire extinguishing container 3 and the battery module fixing end plate 1 manufactured in the second step into a battery module, wherein the battery fire extinguishing container 3 and the battery unit 2 form a whole in a structural adhesive bonding mode.
And fifthly, manufacturing the battery module with the function of preventing thermal runaway according to the process technical requirements, the quality control strategy and the equipment operation requirements of the battery module group.
Embodiment 2 of the battery module according to the present invention differs from the battery module described in embodiment 1 of the above-described battery module only in that: in this embodiment, two filling holes may be provided, and in other embodiments, at least three filling holes may be provided.
Embodiment 3 of the battery module according to the present invention differs from the battery module described in embodiment 1 of the above-described battery module only in that: as shown in fig. 9, the battery fire extinguishing containers 303 may be provided with only one fire extinguishing agent receiving chamber 331, and each battery fire extinguishing container 303 is provided with one battery explosion-proof valve 333 and receiving chamber explosion-proof valve 332, in which case the number of battery fire extinguishing containers 303 of one battery module corresponds to the number of battery cells 302.
Embodiment 4 of the battery module according to the present invention differs from the battery module described in embodiment 1 of the above-described battery module only in that: as shown in fig. 10, the battery fire extinguishing container 403 is provided with two fire extinguishing agent receiving chambers 431, and the number of battery fire extinguishing containers 403 corresponding to one battery module is half of the number of battery cells 402.
Embodiment 5 of the battery module according to the present invention differs from the battery module described in embodiment 1 of the above-described battery module only in that: as shown in fig. 11, in the present embodiment, the battery fire extinguishing container 503 is provided with only one fire extinguisher accommodating chamber 531, but the fire extinguishing agent accommodating chamber 531 is provided with a battery explosion-proof valve 533 and an accommodating chamber explosion-proof valve 532 in one-to-one correspondence with the battery cells 502.
Embodiment 6 of the battery module according to the present invention differs from the battery module described in embodiment 1 of the above-described battery module only in that: as shown in fig. 12, the housing chamber explosion valves 632 of each fire-extinguishing agent housing chamber 631 may face the outside of the battery fire-extinguishing container 603, with no common housing chamber explosion valve 632 between adjacent fire-extinguishing agent housing chambers 631.
Embodiment 7 of the battery module according to the present invention differs from the battery module described in embodiment 6 of the above-described battery module only in that: as shown in fig. 13, a common chamber wall of two adjacent pairs of fire extinguishing agent housing chambers 731 is provided with a pair of housing chamber explosion-proof valves 7321, and the remaining housing chamber explosion-proof valves are outer housing chamber explosion-proof valves 7322.
In embodiment 8 of the battery module of the present invention, the battery module in this embodiment differs from the battery module described in embodiment 7 of the above-described battery module only in that: as shown in fig. 14, in this embodiment, two battery units share one fire extinguishing agent housing chamber 831, and two battery explosion-proof valves 833 are provided in the fire extinguishing agent housing chamber.
In the embodiment of the battery fire extinguishing container of the present invention, the structure of the battery fire extinguishing container is the same as that of the battery fire extinguishing container described in any one of the embodiments 1 to 8 of the battery module, and will not be described again.
The specific embodiment of the battery fire extinguishing unit of the invention has the same structure as the battery fire extinguishing unit described in any one of the specific embodiments 1 to 8 of the battery module, and is not repeated.
In the embodiment of the battery box, the battery box comprises a box body and a battery module arranged in the box body, wherein the battery module has the same structure as the battery module in any one of the embodiments 1-8 of the battery module, and the description is omitted.
The specific embodiment of the vehicle comprises a vehicle body and a battery box arranged on the vehicle body, wherein the battery box comprises a box body and a battery module arranged in the box body, and the structure of the battery module is the same as that described in any one of the specific embodiments 1-8 of the battery module and is not repeated.
In other embodiments of the battery fire extinguishing container and the fire extinguishing component, the battery module, the battery box and the vehicle using the battery fire extinguishing container, the explosion-proof valve of the accommodating cavity can be other explosion-proof structures such as an explosion-proof film, a shell weakening part and the like; the fire extinguishing agent in the fire extinguishing agent cavity can be other types of fire extinguishing agent materials with the same effect and substances with the same function.

Claims (60)

1. The battery container of putting out a fire, its characterized in that: the battery fire extinguishing container is provided with a fire extinguishing agent accommodating cavity, the cavity wall of the fire extinguishing agent accommodating cavity is provided with a battery explosion-proof structure which is used for being correspondingly arranged with a battery unit explosion-proof structure on a battery unit to open pressure relief when the battery unit explosion-proof structure is opened, and an accommodating cavity explosion-proof structure which is used for being opened to relieve pressure when the pressure in the fire extinguishing agent accommodating cavity reaches a set value, the fire extinguishing agent accommodating cavity is provided with at least two, at least one pair of adjacent fire extinguishing agent accommodating cavities are provided with a shared accommodating cavity explosion-proof structure, and the shared accommodating cavity explosion-proof structure is a pair of accommodating cavity explosion-proof structures which are communicated with the corresponding two fire extinguishing agent accommodating cavities when the pressure relief is opened.
2. The battery fire suppression container of claim 1, wherein: at least one of the fire extinguishing agent containing cavities with the explosion-proof structure for the containing cavity is also provided with an explosion-proof structure for the external containing cavity which communicates the fire extinguishing agent containing cavity with the outside of the battery fire extinguishing container when the pressure relief is opened.
3. The battery fire suppression container of claim 2, wherein: the adjacent fire extinguishing agent accommodating cavities are provided with the pair of inner accommodating cavity explosion-proof structures, and the pair of outer accommodating cavity explosion-proof structures are arranged on the cavity walls of the fire extinguishing agent accommodating cavities at two ends.
4. A battery fire suppression container according to any one of claims 1 to 3, wherein: the battery explosion-proof structure of the fire extinguishing agent accommodating cavity is provided with at least two.
5. A battery fire suppression container according to any one of claims 1 to 3, wherein: the fire extinguishing agent accommodating cavities are in one-to-one correspondence with the battery explosion-proof structures.
6. A battery fire suppression container according to any one of claims 1 to 3, wherein: the explosion-proof structure of the accommodating cavity of the fire extinguishing agent accommodating cavity is provided with at least two.
7. A battery fire suppression container according to any one of claims 1 to 3, wherein: the opening pressure of the explosion-proof structure of the accommodating cavity is smaller than or equal to that of the battery explosion-proof structure.
8. A battery fire suppression container according to any one of claims 1 to 3, wherein: the opening pressure of the battery explosion-proof structure is smaller than or equal to the opening pressure of the battery unit explosion-proof valve on the corresponding battery cover plate.
9. A battery fire suppression container according to any one of claims 1 to 3, wherein: the battery fire extinguishing container comprises a body, wherein an accommodating cavity explosion-proof valve and a battery explosion-proof valve are arranged on the body, the accommodating cavity explosion-proof valve forms an accommodating cavity explosion-proof structure, and the battery explosion-proof valve forms a battery explosion-proof structure.
10. A battery fire suppression container according to any one of claims 1 to 3, wherein: the battery fire-extinguishing container is provided with a fire-extinguishing agent filling port communicated with the fire-extinguishing agent accommodating cavity.
11. A battery fire suppression container according to any one of claims 1 to 3, wherein: the battery fire extinguishing container is provided with a fixing structure for fixing the battery module fixing end plate.
12. A battery fire suppression container according to any one of claims 1 to 3, wherein: the battery fire extinguishing container has a container bonding surface for bonding and fixing with the battery unit.
13. The battery fire extinguishing unit, its characterized in that: including battery fire extinguishing container, battery fire extinguishing container has the fire extinguishing agent and holds the chamber, and the fire extinguishing agent holds the intracavity and stores the fire extinguishing agent, is equipped with on the chamber wall of fire extinguishing agent and holds the chamber and be used for corresponding in order to open the battery explosion-proof structure of pressure release when the battery explosion-proof structure opens with the battery unit, and be used for opening the chamber explosion-proof structure that holds of pressure release when the fire extinguishing agent holds the intracavity pressure and reach the setting value, the fire extinguishing agent holds the chamber and is equipped with two at least, and at least a pair of adjacent fire extinguishing agent holds the chamber and has the sharing hold chamber explosion-proof structure, the chamber explosion-proof structure that holds in the chamber explosion-proof structure for corresponding two fire extinguishing agent and hold the chamber intercommunication when opening the pressure release.
14. The battery fire extinguishing unit of claim 13, wherein: at least one of the fire extinguishing agent containing cavities with the explosion-proof structure for the containing cavity is also provided with an explosion-proof structure for the external containing cavity which communicates the fire extinguishing agent containing cavity with the outside of the battery fire extinguishing container when the pressure relief is opened.
15. The battery fire extinguishing unit of claim 14, wherein: the adjacent fire extinguishing agent accommodating cavities are provided with the pair of inner accommodating cavity explosion-proof structures, and the pair of outer accommodating cavity explosion-proof structures are arranged on the cavity walls of the fire extinguishing agent accommodating cavities at two ends.
16. The battery fire extinguishing unit according to any of claims 13-15, wherein: the battery explosion-proof structure of the fire extinguishing agent accommodating cavity is provided with at least two.
17. The battery fire extinguishing unit according to any of claims 13-15, wherein: the fire extinguishing agent accommodating cavities are in one-to-one correspondence with the battery explosion-proof structures.
18. The battery fire extinguishing unit according to any of claims 13-15, wherein: the explosion-proof structure of the accommodating cavity of the fire extinguishing agent accommodating cavity is provided with at least two.
19. The battery fire extinguishing unit according to any of claims 13-15, wherein: the opening pressure of the explosion-proof structure of the accommodating cavity is smaller than or equal to that of the battery explosion-proof structure.
20. The battery fire extinguishing unit according to any of claims 13-15, wherein: the opening pressure of the battery explosion-proof structure is smaller than or equal to the opening pressure of the battery unit explosion-proof valve on the corresponding battery cover plate.
21. The battery fire extinguishing unit according to any of claims 13-15, wherein: the battery fire extinguishing container comprises a body, wherein an accommodating cavity explosion-proof valve and a battery explosion-proof valve are arranged on the body, the accommodating cavity explosion-proof valve forms an accommodating cavity explosion-proof structure, and the battery explosion-proof valve forms a battery explosion-proof structure.
22. The battery fire extinguishing unit according to any of claims 13-15, wherein: the battery fire-extinguishing container is provided with a fire-extinguishing agent filling port communicated with the fire-extinguishing agent accommodating cavity.
23. The battery fire extinguishing unit according to any of claims 13-15, wherein: the battery fire extinguishing container is provided with a fixing structure for fixing the battery module fixing end plate.
24. The battery fire extinguishing unit according to any of claims 13-15, wherein: the battery fire extinguishing container has a container bonding surface for bonding and fixing with the battery unit.
25. The battery module comprises a battery unit, wherein the battery unit is provided with a battery unit explosion-proof structure, and the battery module is characterized in that: the battery module still includes battery fire extinguishing unit, and battery fire extinguishing unit includes battery fire extinguishing container, and battery fire extinguishing container has the fire extinguishing agent and holds the chamber, and fire extinguishing agent holds the intracavity and store fire extinguishing agent, be equipped with on the chamber wall that fire extinguishing agent holds the chamber with battery unit explosion-proof structure on the battery unit corresponds in order to open the battery explosion-proof structure of pressure release when battery unit explosion-proof structure opens and be used for opening the chamber explosion-proof structure that holds of pressure release when fire extinguishing agent holds the intracavity pressure and reach the setting value, fire extinguishing agent holds the chamber and is equipped with two at least, and at least a pair of adjacent fire extinguishing agent holds the chamber and has the sharing hold chamber explosion-proof structure, and the chamber explosion-proof structure that holds the chamber for two corresponding fire extinguishing agent and communicate when opening the pressure release to holding the chamber explosion-proof structure.
26. The battery module of claim 25, wherein: at least one of the fire extinguishing agent containing cavities with the explosion-proof structure for the containing cavity is also provided with an explosion-proof structure for the external containing cavity which communicates the fire extinguishing agent containing cavity with the outside of the battery fire extinguishing container when the pressure relief is opened.
27. The battery module of claim 26, wherein: the adjacent fire extinguishing agent accommodating cavities are provided with the pair of inner accommodating cavity explosion-proof structures, and the pair of outer accommodating cavity explosion-proof structures are arranged on the cavity walls of the fire extinguishing agent accommodating cavities at two ends.
28. The battery module according to any one of claims 25-27, wherein: the battery explosion-proof structure of the fire extinguishing agent accommodating cavity is provided with at least two.
29. The battery module according to any one of claims 25-27, wherein: the fire extinguishing agent accommodating cavities are in one-to-one correspondence with the battery explosion-proof structures.
30. The battery module according to any one of claims 25-27, wherein: the explosion-proof structure of the accommodating cavity of the fire extinguishing agent accommodating cavity is provided with at least two.
31. The battery module according to any one of claims 25-27, wherein: the opening pressure of the explosion-proof structure of the accommodating cavity is smaller than or equal to that of the battery explosion-proof structure.
32. The battery module according to any one of claims 25-27, wherein: the opening pressure of the battery explosion-proof structure is smaller than or equal to the opening pressure of the battery unit explosion-proof valve on the corresponding battery cover plate.
33. The battery module according to any one of claims 25-27, wherein: the battery fire extinguishing container comprises a body, wherein an accommodating cavity explosion-proof valve and a battery explosion-proof valve are arranged on the body, the accommodating cavity explosion-proof valve forms an accommodating cavity explosion-proof structure, and the battery explosion-proof valve forms a battery explosion-proof structure.
34. The battery module according to any one of claims 25-27, wherein: the battery fire-extinguishing container is provided with a fire-extinguishing agent filling port communicated with the fire-extinguishing agent accommodating cavity.
35. The battery module according to any one of claims 25-27, wherein: the battery module comprises a battery module fixing end plate, and a fixing structure fixed with the battery module fixing end plate is arranged on the battery fire extinguishing container.
36. The battery module according to any one of claims 25-27, wherein: the battery fire extinguishing container is provided with a container bonding surface which is bonded and fixed with the battery unit.
37. The battery box comprises a box body and a battery module arranged in the box body, wherein the battery module comprises a battery unit, and the battery unit is provided with a battery unit explosion-proof structure and is characterized in that: the battery module still includes battery fire extinguishing unit, and battery fire extinguishing unit includes battery fire extinguishing container, and battery fire extinguishing container has the fire extinguishing agent and holds the chamber, and fire extinguishing agent holds the intracavity and store fire extinguishing agent, be equipped with on the chamber wall that fire extinguishing agent holds the chamber with battery unit explosion-proof structure on the battery unit corresponds in order to open the battery explosion-proof structure of pressure release when battery unit explosion-proof structure opens and be used for opening the chamber explosion-proof structure that holds of pressure release when fire extinguishing agent holds the intracavity pressure and reach the setting value, fire extinguishing agent holds the chamber and is equipped with two at least, and at least a pair of adjacent fire extinguishing agent holds the chamber and has the sharing hold chamber explosion-proof structure, and the chamber explosion-proof structure that holds the chamber for two corresponding fire extinguishing agent and communicate when opening the pressure release to holding the chamber explosion-proof structure.
38. The battery box as claimed in claim 37, wherein: at least one of the fire extinguishing agent containing cavities with the explosion-proof structure for the containing cavity is also provided with an explosion-proof structure for the external containing cavity which communicates the fire extinguishing agent containing cavity with the outside of the battery fire extinguishing container when the pressure relief is opened.
39. The battery box as claimed in claim 38, wherein: the adjacent fire extinguishing agent accommodating cavities are provided with the pair of inner accommodating cavity explosion-proof structures, and the pair of outer accommodating cavity explosion-proof structures are arranged on the cavity walls of the fire extinguishing agent accommodating cavities at two ends.
40. The battery compartment of any one of claims 37-39, wherein: the battery explosion-proof structure of the fire extinguishing agent accommodating cavity is provided with at least two.
41. The battery compartment of any one of claims 37-39, wherein: the fire extinguishing agent accommodating cavities are in one-to-one correspondence with the battery explosion-proof structures.
42. The battery compartment of any one of claims 37-39, wherein: the explosion-proof structure of the accommodating cavity of the fire extinguishing agent accommodating cavity is provided with at least two.
43. The battery compartment of any one of claims 37-39, wherein: the opening pressure of the explosion-proof structure of the accommodating cavity is smaller than or equal to that of the battery explosion-proof structure.
44. The battery compartment of any one of claims 37-39, wherein: the opening pressure of the battery explosion-proof structure is smaller than or equal to the opening pressure of the battery unit explosion-proof valve on the corresponding battery cover plate.
45. The battery compartment of any one of claims 37-39, wherein: the battery fire extinguishing container comprises a body, wherein an accommodating cavity explosion-proof valve and a battery explosion-proof valve are arranged on the body, the accommodating cavity explosion-proof valve forms an accommodating cavity explosion-proof structure, and the battery explosion-proof valve forms a battery explosion-proof structure.
46. The battery compartment of any one of claims 37-39, wherein: the battery fire-extinguishing container is provided with a fire-extinguishing agent filling port communicated with the fire-extinguishing agent accommodating cavity.
47. The battery compartment of any one of claims 37-39, wherein: the battery module comprises a battery module fixing end plate, and a fixing structure fixed with the battery module fixing end plate is arranged on the battery fire extinguishing container.
48. The battery compartment of any one of claims 37-39, wherein: the battery fire extinguishing container is provided with a container bonding surface which is bonded and fixed with the battery unit.
49. The vehicle, including automobile body and the battery box of fixing on the automobile body, the battery box includes the box and sets up the battery module in the box, and the battery module includes battery cell, and battery cell is equipped with battery cell explosion-proof structure, its characterized in that: the battery module still includes battery fire extinguishing unit, and battery fire extinguishing unit includes battery fire extinguishing container, and battery fire extinguishing container has the fire extinguishing agent and holds the chamber, and fire extinguishing agent holds the intracavity and store fire extinguishing agent, be equipped with on the chamber wall that fire extinguishing agent holds the chamber with battery unit explosion-proof structure on the battery unit corresponds in order to open the battery explosion-proof structure of pressure release when battery unit explosion-proof structure opens and be used for opening the chamber explosion-proof structure that holds of pressure release when fire extinguishing agent holds the intracavity pressure and reach the setting value, fire extinguishing agent holds the chamber and is equipped with two at least, and at least a pair of adjacent fire extinguishing agent holds the chamber and has the sharing hold chamber explosion-proof structure, and the chamber explosion-proof structure that holds the chamber for two corresponding fire extinguishing agent and communicate when opening the pressure release to holding the chamber explosion-proof structure.
50. The vehicle according to claim 49, characterized in that: at least one of the fire extinguishing agent containing cavities with the explosion-proof structure for the containing cavity is also provided with an explosion-proof structure for the external containing cavity which communicates the fire extinguishing agent containing cavity with the outside of the battery fire extinguishing container when the pressure relief is opened.
51. The vehicle of claim 50, wherein: the adjacent fire extinguishing agent accommodating cavities are provided with the pair of inner accommodating cavity explosion-proof structures, and the pair of outer accommodating cavity explosion-proof structures are arranged on the cavity walls of the fire extinguishing agent accommodating cavities at two ends.
52. The vehicle of any one of claims 49-51, characterized in that: the battery explosion-proof structure of the fire extinguishing agent accommodating cavity is provided with at least two.
53. The vehicle of any one of claims 49-51, characterized in that: the fire extinguishing agent accommodating cavities are in one-to-one correspondence with the battery explosion-proof structures.
54. The vehicle of any one of claims 49-51, characterized in that: the explosion-proof structure of the accommodating cavity of the fire extinguishing agent accommodating cavity is provided with at least two.
55. The vehicle of any one of claims 49-51, characterized in that: the opening pressure of the explosion-proof structure of the accommodating cavity is smaller than or equal to that of the battery explosion-proof structure.
56. The vehicle of any one of claims 49-51, characterized in that: the opening pressure of the battery explosion-proof structure is smaller than or equal to the opening pressure of the battery unit explosion-proof valve on the corresponding battery cover plate.
57. The vehicle of any one of claims 49-51, characterized in that: the battery fire extinguishing container comprises a body, wherein an accommodating cavity explosion-proof valve and a battery explosion-proof valve are arranged on the body, the accommodating cavity explosion-proof valve forms an accommodating cavity explosion-proof structure, and the battery explosion-proof valve forms a battery explosion-proof structure.
58. The vehicle of any one of claims 49-51, characterized in that: the battery fire-extinguishing container is provided with a fire-extinguishing agent filling port communicated with the fire-extinguishing agent accommodating cavity.
59. The vehicle of any one of claims 49-51, characterized in that: the battery module comprises a battery module fixing end plate, and a fixing structure fixed with the battery module fixing end plate is arranged on the battery fire extinguishing container.
60. The vehicle of any one of claims 49-51, characterized in that: the battery fire extinguishing container is provided with a container bonding surface which is bonded and fixed with the battery unit.
CN201710911465.6A 2017-09-29 2017-09-29 Vehicle and battery box, battery module, fire extinguishing component and fire extinguishing container thereof Active CN109585726B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201710911465.6A CN109585726B (en) 2017-09-29 2017-09-29 Vehicle and battery box, battery module, fire extinguishing component and fire extinguishing container thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201710911465.6A CN109585726B (en) 2017-09-29 2017-09-29 Vehicle and battery box, battery module, fire extinguishing component and fire extinguishing container thereof

Publications (2)

Publication Number Publication Date
CN109585726A CN109585726A (en) 2019-04-05
CN109585726B true CN109585726B (en) 2024-03-01

Family

ID=65919139

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201710911465.6A Active CN109585726B (en) 2017-09-29 2017-09-29 Vehicle and battery box, battery module, fire extinguishing component and fire extinguishing container thereof

Country Status (1)

Country Link
CN (1) CN109585726B (en)

Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109568834B (en) * 2017-09-29 2024-02-13 宇通客车股份有限公司 Fire extinguishing pressing strip and battery module, battery box and vehicle using same
KR20200131618A (en) * 2019-05-14 2020-11-24 주식회사 엘지화학 Battery module and battery pack including the same
DE102019207084A1 (en) * 2019-05-15 2020-11-19 Audi Ag Battery module, high-voltage battery and motor vehicle
US11764430B2 (en) 2019-09-05 2023-09-19 Samsung Sdi Co., Ltd. Energy storage module
US11735795B2 (en) * 2019-09-05 2023-08-22 Samsung Sdi Co., Ltd. Energy storage module
US11735788B2 (en) 2019-09-05 2023-08-22 Samsung Sdi Co., Ltd. Energy storage module including insulation spacers and an extinguisher sheet
US11771935B2 (en) 2019-09-05 2023-10-03 Samsung Sdi Co., Ltd. Energy storage module
US11848461B2 (en) * 2019-09-05 2023-12-19 Samsung Sdi Co., Ltd. Energy storage module
US11764438B2 (en) 2019-09-05 2023-09-19 Samsung Sdi Co., Ltd. Energy storage module having extinguisher sheet
US11799167B2 (en) 2019-09-05 2023-10-24 Samsung Sdi Co., Ltd. Energy storage module having extinguisher sheet
US11728541B2 (en) * 2019-09-05 2023-08-15 Samsung Sdi Co., Ltd. Energy storage module
US11145933B2 (en) * 2019-09-05 2021-10-12 Samsung Sdi Co., Ltd. Energy storage module
US11569546B2 (en) 2019-09-05 2023-01-31 Samsung Sdi Co., Ltd. Energy storage module
CA3156571A1 (en) 2020-07-10 2022-01-13 Contemporary Amperex Technology Co., Limited Battery, power consumption device, method and device for preparing battery
CN112402842A (en) * 2020-11-23 2021-02-26 中国电力科学研究院有限公司 Fire extinguishing device and method suitable for closed battery module
CN112957636A (en) * 2021-02-22 2021-06-15 江苏塔菲尔动力系统有限公司 Fire extinguishing structure for battery and packaging method
CN113394510B (en) * 2021-05-31 2022-04-19 浙江南都电源动力股份有限公司 Temperature protection structure with over-temperature protection and fire extinguishing functions and protection method
EP4262005A1 (en) * 2021-11-30 2023-10-18 Contemporary Amperex Technology Co., Limited Battery, electric device, and method and device for preparing battery
CN115441121B (en) * 2022-11-08 2023-02-07 楚能新能源股份有限公司 Battery module, battery package and electric motor car that delay thermal runaway

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008117756A (en) * 2006-10-13 2008-05-22 Matsushita Electric Ind Co Ltd Battery pack, and battery-mounting device
JP2014165026A (en) * 2013-02-26 2014-09-08 Hochiki Corp Fire extinguisher
JP2015018706A (en) * 2013-07-11 2015-01-29 株式会社豊田自動織機 Power storage device module
DE102013216296A1 (en) * 2013-08-16 2015-02-19 Robert Bosch Gmbh Battery with chemical sensor
JP2016062757A (en) * 2014-09-18 2016-04-25 三菱重工業株式会社 Battery module

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008117756A (en) * 2006-10-13 2008-05-22 Matsushita Electric Ind Co Ltd Battery pack, and battery-mounting device
JP2014165026A (en) * 2013-02-26 2014-09-08 Hochiki Corp Fire extinguisher
JP2015018706A (en) * 2013-07-11 2015-01-29 株式会社豊田自動織機 Power storage device module
DE102013216296A1 (en) * 2013-08-16 2015-02-19 Robert Bosch Gmbh Battery with chemical sensor
JP2016062757A (en) * 2014-09-18 2016-04-25 三菱重工業株式会社 Battery module

Also Published As

Publication number Publication date
CN109585726A (en) 2019-04-05

Similar Documents

Publication Publication Date Title
CN109585726B (en) Vehicle and battery box, battery module, fire extinguishing component and fire extinguishing container thereof
CN109568834B (en) Fire extinguishing pressing strip and battery module, battery box and vehicle using same
US10651438B2 (en) Battery pack comprising fire extinguishing device, and control method using same
US20140170447A1 (en) Battery housing for lithium-ion cells
CN207474524U (en) A kind of vehicle and its battery case, battery modules, fire extinguishing component, fire extinguishment container
KR20210058822A (en) Housing for rechargeable batteries
CN104205411A (en) Filling device for firefighters of a drive battery of an electric or hybrid vehicle
CN213692271U (en) Battery cell, battery and power consumption device
JP5866463B2 (en) Battery cell assembly with improved safety and battery module including the same
CN103872270A (en) Energy storage device having a safety coating
US9196920B2 (en) Electrochemical cell having a safety device
CN207886552U (en) A kind of fire extinguishing press strip and use the battery modules of the press strip, battery case, vehicle
CN216720196U (en) Battery cell, battery and power consumption device
CN214589152U (en) Battery and power consumption device
CN115943522A (en) Battery, device, preparation method of battery and preparation device
CN115152080A (en) Battery, device, preparation method of battery and preparation device
EP4071901A1 (en) Battery pack
CN210349923U (en) Battery and electric vehicle
CN219303740U (en) Battery monomer, battery and power consumption device
JP2015125901A (en) Battery pack
CN215537954U (en) Fire extinguishing part, battery module and battery box
WO2024000103A1 (en) Battery and electric device
CN215418506U (en) Battery tab, single battery, battery module, battery pack and electric equipment
CN214625211U (en) Structure for preventing thermal runaway of battery, battery module and battery pack
JP2024507420A (en) Battery housing, battery, power consumption device, battery manufacturing method and device

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
CB02 Change of applicant information
CB02 Change of applicant information

Address after: No. 6, Yutong Road, Guancheng Hui District, Zhengzhou, Henan 450061

Applicant after: Yutong Bus Co.,Ltd.

Address before: 450016 Yutong Industrial Zone, eighteen Li River, Henan, Zhengzhou

Applicant before: ZHENGZHOU YUTONG BUS Co.,Ltd.

GR01 Patent grant
GR01 Patent grant