CN116565433B - Battery box and battery pack - Google Patents

Battery box and battery pack Download PDF

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Publication number
CN116565433B
CN116565433B CN202310565885.9A CN202310565885A CN116565433B CN 116565433 B CN116565433 B CN 116565433B CN 202310565885 A CN202310565885 A CN 202310565885A CN 116565433 B CN116565433 B CN 116565433B
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CN
China
Prior art keywords
side plate
fire
fighting
cross beam
battery
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
CN202310565885.9A
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Chinese (zh)
Other versions
CN116565433A (en
Inventor
李德胜
杨强
冯守旺
李明尧
梅若愚
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.)
Qing'an Energy Storage Technology Chongqing Co ltd
Original Assignee
Qing'an Energy Storage Technology Chongqing Co ltd
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Publication date
Application filed by Qing'an Energy Storage Technology Chongqing Co ltd filed Critical Qing'an Energy Storage Technology Chongqing Co ltd
Priority to CN202310565885.9A priority Critical patent/CN116565433B/en
Publication of CN116565433A publication Critical patent/CN116565433A/en
Application granted granted Critical
Publication of CN116565433B publication Critical patent/CN116565433B/en
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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
    • H01M50/256—Carrying devices, e.g. belts
    • 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
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
    • G10K11/00—Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
    • G10K11/16—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/61—Types of temperature control
    • H01M10/613—Cooling or keeping cold
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/62—Heating or cooling; Temperature control specially adapted for specific applications
    • H01M10/627—Stationary installations, e.g. power plant buffering or backup power supplies
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/65—Means for temperature control structurally associated with the cells
    • H01M10/655—Solid structures for heat exchange or heat conduction
    • H01M10/6551—Surfaces specially adapted for heat dissipation or radiation, e.g. fins or coatings
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/65—Means for temperature control structurally associated with the cells
    • H01M10/658—Means for temperature control structurally associated with the cells by thermal insulation or shielding
    • 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
    • H01M50/204—Racks, modules or packs for multiple batteries or multiple cells
    • 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
    • H01M50/233—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by physical properties of casings or racks, e.g. dimensions
    • H01M50/24—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by physical properties of casings or racks, e.g. dimensions adapted for protecting batteries from their environment, e.g. from corrosion
    • 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
    • H01M50/233—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by physical properties of casings or racks, e.g. dimensions
    • H01M50/242—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by physical properties of casings or racks, e.g. dimensions adapted for protecting batteries against vibrations, collision impact or swelling
    • 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
    • H01M50/244—Secondary casings; Racks; Suspension devices; Carrying devices; Holders characterised by their mounting method
    • 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
    • H01M50/251—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders specially adapted for stationary devices, e.g. power plant buffering or backup power supplies
    • 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
    • H01M50/258—Modular batteries; Casings provided with means for assembling
    • 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
    • H01M50/262—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders with fastening means, e.g. locks
    • H01M50/264—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders with fastening means, e.g. locks for cells or batteries, e.g. straps, tie rods or peripheral frames
    • 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
    • H01M50/289—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by spacing elements or positioning means within frames, racks or packs
    • 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

Abstract

The invention relates to the technical field of electrochemical energy storage, and discloses a battery box, which comprises an annular side plate, a bottom plate and an upper cover, wherein the annular side plate, the bottom plate and the upper cover are enclosed to form a first containing cavity capable of containing a battery module, a pair of opposite side plates in the annular side plate all comprise a fixing part and a reinforcing part, the fixing part is parallel to the reinforcing part and has a gap, the outer side surface of the reinforcing part is provided with a plurality of lifting holes through which lifting hooks can pass, the bottom plate is provided with a first cross beam and a second cross beam which are parallel to each other, and the first cross beam and the second cross beam are connected with a battery core mounting structure. The invention solves the problems that in the prior art, the battery box is not easy to grasp in the transportation process and the battery module is easy to shake in the transportation process.

Description

Battery box and battery pack
Technical Field
The invention relates to the technical field of electrochemical energy storage, in particular to a battery box and a battery pack.
Background
The energy storage battery can effectively store and release electric energy in a time-selecting way through energy form conversion, and the space-time asymmetry of power supply and demand is broken. The energy storage battery mainly refers to a battery pack for storing energy, and the battery pack comprises a battery box and a battery module positioned in the battery box.
However, during installation and transportation, the following problems exist: 1. the outer surface of the battery box is smooth, the battery box is not easy to grasp, and the workload during carrying is easy to increase; 2. the battery module is adhered to the bottom plate of the battery box, in the transportation process, adhesion is not firm, the battery module is easy to shake and is contacted with the inner wall of the battery box due to the influence of external force, and then the outer surface of the battery module is worn, so that the normal operation of the battery module is influenced.
Disclosure of Invention
In order to overcome the defects in the prior art, one of the aims of the invention is to provide a battery box which can facilitate grabbing a battery pack in the process of installation and transportation and ensure that a battery module is fixed on a bottom plate all the time and does not shake.
The technical scheme adopted by the invention is as follows:
the utility model provides a battery box, includes annular curb plate, bottom plate and upper cover, annular curb plate, bottom plate and upper cover enclose and close the first appearance chamber that forms can hold battery module, a pair of relative curb plate is all including fixed part and reinforcement portion in the annular curb plate, fixed part is parallel and gapped with reinforcement portion, reinforcement portion lateral surface is equipped with the lifting eye that a plurality of lifting hooks can pass, the bottom plate is equipped with first crossbeam and the second crossbeam that is parallel to each other, first crossbeam and second crossbeam all are connected with electric core mounting structure.
Compared with the prior art, the invention has the beneficial effects that:
1. the fixing part and the reinforcing part are provided with gaps, so that the bearing performance of the battery box can be improved, the heat insulation effect of the battery box can be improved, the influence of the external temperature on the inside of the battery box can be delayed, the noise caused by the operation of devices in the battery box can be isolated, the explosion-proof capacity of the battery box can be enhanced when abnormal conditions occur in the battery box, the battery box can be conveniently grabbed through the hoisting hole, the fixing part and the reinforcing part are provided with gaps, the lifting hook can penetrate through the hoisting hole and is positioned between the fixing part and the reinforcing part, the battery box can be conveniently and stably grabbed by the lifting hook, and the battery box can be easily grabbed while ensuring the closed space of a battery module;
2. the first cross beam and the second cross beam are positioned at two ends of the battery module, so that a positioning function can be provided for the battery module, the battery module can be conveniently and rapidly adhered to the bottom plate, and the battery module can be limited and reinforced again, so that the battery module is further prevented from shaking.
As a preferred embodiment of the present invention: the battery cell mounting structure comprises a fire-fighting support and a plurality of fixing pieces used for assisting in binding the battery cell group, wherein the fire-fighting support is connected with the fixing pieces, and the fixing pieces are respectively connected with the first cross beam and the second cross beam.
The beneficial effect of this scheme: the mounting is connected with first crossbeam and second crossbeam respectively, can strengthen the stability that the electric core group was connected with the battery box.
In a preferred embodiment of the present invention, the fixing member is provided with a first through groove penetrating through the upper end surface and the lower end surface of the fixing member, the first through groove is provided with a plurality of connecting portions connecting two opposite inner side walls of the first through groove, the first through groove and the connecting portions are enclosed to form a second containing cavity, and the surface, connected with the fixing member, of the second cross beam is provided with a plurality of protruding blocks capable of extending into the second containing cavity.
The beneficial effect of this scheme: the first through groove can lighten the weight of the fixing piece, and then reduces the weight of the battery core mounting structure, the connecting portion can strengthen the supporting strength of the fixing piece, the second accommodating cavity and the convex block are combined, positioning can be provided for the fixing piece, the fixing piece and the second cross beam are convenient to quickly connect, and meanwhile the fixing piece and the second cross beam are connected more stably.
In a preferred embodiment of the present invention, the first beam has a U-shape, an end surface of the vertical portion of the first beam is connected to the bottom plate, and the horizontal portion of the first beam is connected to the fixing member.
The beneficial effect of this scheme: the U type can be convenient for first crossbeam quick heat dissipation, can also make first crossbeam and bottom plate welded solder joint be held between two vertical portion medial surfaces of first crossbeam, and then prevent solder joint scratch battery module surface, influence battery module normal operating.
As a preferred embodiment of the present invention, the second beam is provided with a plurality of U-shaped second through slots.
The beneficial effect of this scheme: the second through groove can hold the solder joint that produces when second crossbeam and bottom plate welding, can avoid the solder joint to scrape and touch the battery module, produces the damage to the battery module surface, and then influences the normal work of battery module.
As a preferred embodiment of the invention, the fixing piece is connected with the adjacent fixing piece through a first bracket, the fixing piece positioned at the outermost side is provided with a second bracket connected with the first bracket, the first bracket and the second bracket are connected through a connecting rod, a plurality of clamping columns used for connecting a fire-fighting bracket are arranged on the surface parallel to the outer side surface of the fixing piece, the fire-fighting bracket is connected with a smoke sensor and an aerosol fire extinguisher, and the upper part of the fire-fighting bracket is provided with a strip-shaped hole clamped on the clamping column.
The beneficial effect of this scheme: the first support can be connected mounting and adjacent mounting, and then make the fixed relative slip that does not take place between battery module and the adjacent battery module in the transportation, ensure transportation safety, first support, second support and connecting rod combined action, can be convenient for set up the card post, the design of card post cooperation joint that sets up on through bar hole and the connecting rod, during the equipment, directly will install the fire control support card of smoke transducer and aerosol fire extinguisher and go into the card post and can realize the fast-assembling, and the design in bar hole, after the card goes into the spliced pole, the position of fire control support can carry out self-adaptation as required.
As the preferred implementation mode of the invention, the outer side surface of the fixing piece is symmetrically provided with the mounting holes communicated with the second containing cavity, the positions of the fire-fighting bracket, which are connected with the smoke sensor and the aerosol fire extinguisher, are hollowed out, and the mounting holes can be opposite to the hollowed-out positions.
The beneficial effect of this scheme: 1. in the scheme, the fire-fighting bracket is positioned at the smoke sensor and the aerosol fire extinguisher and is provided with the mounting holes corresponding to the hollowed-out parts, so that the weight of the whole fire-fighting bracket and the mounting part is reduced, and the fire-fighting bracket is more convenient to transport, mount and dismount; 2. on the other hand, when the inside of the battery box is in a normal state, the transverse position of the whole fire-fighting support is not right opposite to the mounting hole or the position of the fire-fighting support is just opposite to the mounting hole, so that the normal detection of the smoke sensor is not affected, the dust prevention and water prevention effects are not affected due to excessive exposure of the inside of the battery core, when the inside of the battery core is abnormal, if thermal runaway occurs, the internal gas is rapidly increased, a large amount of gas flows to the mounting hole at the fixing part through the inside of the battery core, and then flows to the hollow of the fire-fighting support through the mounting hole, and when the fire-fighting support is matched with the clamping column of the connecting rod through the strip-shaped hole, the floating type connection mode with adjustable transverse position is adopted, so that a large amount of rapidly increased gas can force the whole fire-fighting support to generate trace transverse movement, thereby enabling the right area of the hollow of the fire-fighting support and the mounting hole of the fixing part to be larger, enabling direct gas flow channels to be formed between the inside of each battery core and the smoke sensor and the explosion-proof pressure release valve, compared with other gas flow channels, the gas flow paths can be greatly shortened, the gas flow paths can be rapidly and rapidly through the inside of the battery core to the mounting hole to the fixing part and the mounting hole, and the explosion-proof pressure release valve, and the fire-fighting pressure sensor can also be more effectively detected, and the fire-fighting pressure release valve.
In a preferred embodiment of the invention, a plurality of third cross beams are arranged on the inner side surface of the bottom plate at intervals, a heat insulation layer attached to the inner side surface of the bottom plate is arranged between the third cross beams, and the outer side surface of the third cross beams is parallel to the outer side surface of the heat insulation layer and higher than the outer side surface of the heat insulation layer.
The beneficial effect of this scheme: the third crossbeam can prevent insulating layer and other object direct contact, influences thermal-insulated effect, and a plurality of third crossbeams combined action can also provide the support to the bottom plate, and the bottom plate is the liquid cooling board, can also prevent that the bottom plate from directly contacting with other object direct contact, and transfer temperature influences the liquid cooling effect.
In a preferred embodiment of the present invention, the lifting hole is inverted T-shaped.
The beneficial effect of this scheme: the lifting hole is of an inverted T shape, and a contact point can be provided for the lifting hook when the battery box is grabbed, so that the lifting hook is fixed in the lifting hole and does not slide, and further the battery box can be stably grabbed.
Another object of the invention is also to propose a battery pack comprising a battery box as described above.
Drawings
Fig. 1 is a schematic view of the structure of a battery case of the present invention;
FIG. 2 is a schematic view of a partial structure of a battery case according to the present invention;
FIG. 3 is a schematic view of the structure of the first and second beams of the present invention;
fig. 4 is a schematic structural view of the cell mounting structure of the present invention;
FIG. 5 is a schematic view of the structure of the invention in position A;
FIG. 6 is a schematic view of a partial structure of the battery box of the present invention at another angle;
FIG. 7 is a schematic view of the structure of the present invention in position B;
FIG. 8 is a schematic view of a battery box according to another embodiment of the present invention;
FIG. 9 is a schematic view of the structure of the present invention at position C;
fig. 10 is a schematic structural view of embodiment 2 of the present invention;
FIG. 11 is a schematic view showing the structure of embodiment 3 of the present invention;
fig. 12 is a schematic view of the structure of the present invention at the position D.
Detailed Description
Exemplary embodiments that embody features and advantages of the present invention will be set forth in detail in the following description. It will be understood that the invention is capable of various modifications in various embodiments, all without departing from the scope of the invention, and that the description and illustrations herein are intended to be by way of illustration only and not to be construed as limiting the invention.
In the description of the present application, the orientation or positional relationship indicated by the terms "first", "second", "one side", etc. are based on the orientation or positional relationship shown in the drawings, and are merely for convenience of description of the present application and to simplify the description, rather than to indicate or imply that the structure referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present application.
The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.
The reference numerals include:
the battery module comprises a fixing piece 101, a first through groove 103, a connecting part 107, a mounting hole 110, a battery module 111, a battery cell group 114, a first bracket 119 and a battery cell mounting structure 120;
the device comprises an annular side plate 301, a bottom plate 302, an upper cover 303, a first containing cavity 304, a fixing part 305, a reinforcing part 306, a lifting hole 307, a first beam 308, a second beam 309, a fire-fighting bracket 310, a second containing cavity 311, a convex block 312, a second through groove 313, a second bracket 314, a connecting rod 315, a clamping column 316, a smoke sensor 317, an aerosol fire extinguisher 318, a strip-shaped hole 319, a third beam 320, a heat insulation layer 321 and a battery box 322;
the hollow 5061, the guide groove 509 and the first electromagnet 5091;
the standby gas-liquid two-phase spray head 601, the mounting seat 602, the guide rail 603, the mounting plate 604, the sliding block 605, the second electromagnet 606 and the magnet 607.
Example 1
Referring to fig. 1 and 2, a battery box 322 includes an annular side plate 301, a bottom plate 302 and an upper cover 303, wherein the annular side plate 301, the bottom plate 302 and the upper cover 303 enclose a first accommodating cavity 304 capable of accommodating a battery module 111, the annular side plate 301 includes a first side plate, a second side plate opposite to the first side plate, a third side plate connected with the first side plate and the second side plate, and a fourth side plate opposite to the third side plate and connected with the first side plate and the second side plate, the first side plate and the second side plate both include a fixing portion 305 and a reinforcing portion 306 connected with the third side plate and the fourth side plate, the fixing portion 305 is parallel to the reinforcing portion 306 and has a gap, and a plurality of hanging holes 307 through which inverted-T hooks can pass are opened on the outer side surface of the reinforcing portion 306.
In this embodiment, the bottom plate 302 is a liquid cooling plate, the bottom plate 302 is welded with the annular side plate 301, the upper cover 303 is in threaded connection with the bottom plate 302, the third side plate and the fourth side plate are welded with the surface of the bottom plate 302, which is in contact with the first beam 308, the third side plate is spaced from the front end surface of the bottom plate 302, so that a space is reserved on the bottom plate 302 for placing a liquid cooling nozzle joint, the third side plate is provided with a plurality of square holes capable of placing an explosion-proof valve, a charge-discharge interface and a communication interface, and the third side plate is provided with a plurality of holes capable of bolting the explosion-proof valve, the charge-discharge interface and the communication interface to the third side plate.
As shown in fig. 3, the bottom plate 302 is welded with a first beam 308 and a second beam 309 connected with the first side plate and the second side plate, the first beam 308 is close to the third side plate, the second beam 309 is close to the fourth side plate, the first beam 308 and the second beam 309 are both connected with the cell mounting structure 120, the first beam 308 and the second beam 309 are both provided with a plurality of first threaded holes, the surface of the fixing element 101 in contact with the first beam 308 is symmetrically provided with a second threaded hole communicated with the first threaded hole, the first beam 308 and the second beam 309 are respectively connected with the fixing element 101 through threads penetrating through the first threaded hole and the second threaded hole, the first beam 308 is in a U shape, the end face of the vertical part of the first beam 308 is connected with the bottom plate 302, the first threaded hole is located on the transverse part of the first beam 308, the second beam 309 is provided with a plurality of U-shaped second through grooves 313, and the surface of the second beam 309 connected with the fixing element 101 is provided with a plurality of bumps 312 capable of extending into the second accommodating cavity 311.
As shown in fig. 4, 5 and 6, the cell mounting structure 120 is adhered to the bottom plate 302, and the cell mounting structure 120 includes a cell group 114, end plates, a tie, and a fire-fighting bracket 310 connected to the end plates, the end plates being located at two ends of the cell group 114, the cell group 114 and the end plates being connected by the tie.
The end plate comprises a plurality of fixing pieces 101 used for assisting in binding the battery cell group 114 and an output electrode support, the fixing pieces 101 are provided with first through grooves 103 penetrating through two end faces of the fixing pieces 101, the upper end faces of the fixing pieces 101 are provided with clamping grooves communicated with the first through grooves 103, the output electrode support is connected with elastic pieces capable of being clamped into the clamping grooves, the upper end faces of the fixing pieces 101 are provided with U-shaped grooves communicated with the first through grooves 103, the first through grooves 103 are connected with a plurality of connecting portions 107 connected with two opposite inner side walls of the first through grooves 103, the bottoms of the output electrode support are symmetrically connected with supporting portions protruding and attached to the bottoms of the connecting portions 107 and the U-shaped grooves, the connecting portions 107 play a supporting role on the supporting portions, the transverse portions of the first cross beams 308 are connected with the fixing pieces 101, the first through grooves 103 and the connecting portions 107 form a plurality of second accommodating cavities 311, the faces of the second cross beams 309 are fixedly connected with bumps 312, and the bumps 312 extend into the second accommodating cavities 311.
In this embodiment, the two ends of the bottom of the output electrode support are symmetrically connected with the step parts, before the spring is clamped into the clamping groove, the spring is pressed first, so that the spring moves towards the central axis close to the width direction of the output electrode support, the supporting part is attached to the connecting part 107 and the U-shaped groove, meanwhile, the step parts are attached to the outer surface of the fixing part, the vertical parts of the step parts are abutted to the side walls of the U-shaped groove, the spring moves to the clamping groove along the length direction of the first through groove 103 in the first through groove 103, the spring is released, part of the spring is clamped into the clamping groove, and part of the spring is positioned between the output electrode support and the U-shaped groove, and at this time, the step parts are not contacted with the connecting part; the spring plate is taken out from the clamping groove, the part of the spring plate between the output pole support and the U-shaped groove is pressed firstly, so that the spring plate moves towards the central shaft close to the width direction of the output pole support, the part of the spring plate clamped into the clamping groove is withdrawn from the clamping groove, the output pole support is taken upwards, and the output pole support is detached from the fixing piece 101.
As shown in fig. 5, the fixing pieces 101 are connected with the adjacent fixing pieces 101 through a first bracket 119, the first bracket 119 is L-shaped, the inner side surface of the first bracket 119 is attached to the outer surface of the fixing piece 101, the first bracket 119 is connected with the fixing piece 101 through a surface bolt of an output pole bracket, the fixing piece 101 close to the second side plate is connected with a second bracket 314 through a surface bolt of an output pole bracket, the first bracket 119 is connected with the second bracket 314 through a connecting rod 315, the connecting rod 315 is attached to the outer side surface of the fixing piece 101, clamping columns 316 for connecting the fire-fighting bracket 310 are fixedly connected with the surfaces of the first bracket 119 and the second bracket 314 parallel to the outer side surface of the fixing piece 101, the fire-fighting bracket 310 is connected with a smoke sensor 317 and an aerosol fire extinguisher 318, and a strip-shaped hole 319 clamped on the clamping columns 316 is formed in the upper portion of the fire-fighting bracket 310.
As shown in fig. 6 and 7, the outer side surface of the fixing member 101 is symmetrically provided with mounting holes 110 communicated with the second accommodating cavity 311, and the positions of the fire-fighting bracket 310, where the smoke sensor 317 and the aerosol fire extinguisher 318 are connected, are hollowed out, and the positions of the mounting holes 110 can be opposite to the hollowed-out positions.
As shown in fig. 8 and 9, a plurality of third beams 320 parallel to the second side plate are fixedly connected to the outer side surface of the bottom plate 302 at intervals, a heat insulation layer 321 attached to the inner side surface of the bottom plate 302 is adhered between the third beams 320, and the outer side surface of the third beams 320 is parallel to the outer side surface of the heat insulation layer 321 and higher than the outer side surface of the heat insulation layer 321.
In this embodiment, be connected with the explosion-proof relief valve and the gas-liquid two-phase shower nozzle that can dismantle the installation on the third curb plate and be close to the second curb plate on the third curb plate, gas-liquid two-phase shower nozzle is located the explosion-proof relief valve directly over, is connected with the smoke transducer and the aerosol fire extinguisher that can dismantle the installation on fire control support 310 on the fire control support 310, and the aerosol fire extinguisher is close to smoke transducer, and smoke transducer is close to each other and just to the position with the explosion-proof relief valve.
The explosion-proof pressure release valve and the gas-liquid two-phase spray head are both positioned on the third side plate, so that the explosion-proof pressure release valve, the gas-liquid two-phase spray head and the fire-fighting bracket are positioned on the same side, and the reasonable layout of the battery pack can be improved; the explosion-proof pressure release valve is arranged on the third side plate, when the battery pack is in a normal working state, gas in the battery pack box body flows to the outside through the explosion-proof pressure release valve, and the smoke sensor is close to the explosion-proof pressure release valve and faces the explosion-proof pressure release valve, so that the smoke sensor is just positioned on a flow path of the gas in the battery pack box body flowing to the explosion-proof pressure release valve, and the gas has certain fluidity, so that compared with other positions in the battery pack box body, the real-time detection of the smoke sensor can be ensured to be more reliable and stable, and the current gas concentration and the component conditions in the battery pack box body can be reflected integrally; when the abnormality occurs in the battery pack box body, the gas is rapidly increased, so that a large amount of gas is leaked through the explosion-proof pressure release valve, in the process, the smoke sensor is close to the explosion-proof pressure release valve and is designed to be opposite to the explosion-proof pressure release valve, so that the increase of the gas concentration and the change of the gas composition can be timely detected, countermeasures are timely taken to avoid the aggravation of abnormal conditions, and the design has the effect of timely and efficient detection.
A battery pack, such as battery box 322, as described above.
Example 2
As shown in fig. 10, the difference between the present embodiment and embodiment 1 is that the fire protection device of the battery pack of the present embodiment further discloses a connection mode of the smoke sensor 317 and the fire protection bracket 310, in this embodiment, two guide grooves 509 along the vertical direction are provided on two sides of the fire protection bracket 310, which are located at the hollow 5061, the cross section of the guide grooves 509 is in a dovetail shape, the lower parts of the guide grooves extend downward beyond the hollow 5061, a first electromagnet 5091 is provided at the position of the bottom of the guide grooves, which is opposite to the explosion-proof pressure release valve, two sliding blocks (not shown in the figure) slidingly engaged with the guide grooves 509 are provided on the inner side surface of the smoke sensor 317, metal sheets capable of being absorbed by the first electromagnet 5091 are provided at the bottom of the sliding blocks, and the on-off of the first electromagnet 5091 is controlled by a controller provided in the battery pack.
When the battery pack works normally, the electromagnet is electrified, so that the smoke sensor is adsorbed, the smoke sensor faces the explosion-proof pressure release valve, a large amount of gas is generated in the battery pack, and the smoke sensor timely detects that the smoke concentration is increased, and simultaneously, the pressure of the large amount of gas is released through the explosion-proof pressure release valve. If after the explosion-proof pressure release valve and the outside of the battery pack form a free gas channel, the smoke sensor is still in a right position with the explosion-proof pressure release valve, and the smoke concentration at the position is lower than the smoke concentration at other positions of the battery pack due to the rapid circulation of gas at the explosion-proof pressure release valve, so that the smoke concentration detected by the smoke sensor is inaccurate.
The embodiment further discloses fire control early warning method of battery package, still includes smoke transducer position adjustment step, and after explosion-proof relief valve was released the pressure, the electro-magnet outage was controlled to the controller to make smoke transducer slide to the position that is close to battery package bottom along the guide way under self gravity effect, thereby no longer just right with explosion-proof relief valve.
Example 3
As shown in fig. 11 and 12, the present embodiment is different from embodiment 1 in that: in this embodiment, the air-liquid dual-phase spray nozzle further comprises a standby air-liquid dual-phase spray nozzle 601, a through hole is formed in the battery box 322, the standby air-liquid dual-phase spray nozzle 601 horizontally penetrates through the through hole, one end of a nozzle of the standby air-liquid dual-phase spray nozzle faces the inside of the battery box 322, an installation seat 602 is arranged outside the battery box 322, a guide rail 603 is arranged on the upper portion of the installation seat 602, one end, far away from the nozzle, of the standby air-liquid dual-phase spray nozzle 601 is provided with an installation plate 604, two sides of the lower portion of the installation plate 604 are respectively provided with a sliding block 605, the sliding block 605 is in sliding fit with the guide rail 603, a second electromagnet 606 is arranged at the end, close to the battery box 322, of the installation seat 602, on one side, close to the battery box 322, of the sliding block 605 is provided with a magnet 607 which can be adsorbed or repelled by the second electromagnet 606, and the polarity of the second electromagnet 606 is controlled by a controller according to the temperature collected in the battery box 322 and the temperature condition collected in the energy storage container.
The use scene and principle of this scheme lie in: in the electrochemical energy storage technology, a battery pack is a basic energy storage unit and is formed by installing a plurality of groups of battery modules inside a battery box, each group of battery modules comprises a plurality of battery cores which are arranged in a row, a temperature sensor is arranged on each battery core, the temperature inside the battery box is measured by the highest value of the temperature collected in each battery core, the plurality of battery packs form an energy storage container, the temperatures outside the battery box and inside the shell of the energy storage container are collected through the temperature sensors inside the energy storage container, and in addition, smoke sensors are also arranged inside and outside the battery box.
Description: in the invention, in a normal initial state, the second electromagnet is electrified to enable the polarity of the second electromagnet to be different from that of the magnet, so that the magnet is adsorbed, a nozzle of the standby gas-liquid two-phase spray head faces the inside of the battery box, the standby gas-liquid two-phase spray head is always connected with a fire-fighting pipeline, and a valve is arranged on the fire-fighting pipeline.
The invention is provided with the standby gas-liquid two-phase spray head, and has the following advantages: when the temperature inside a certain battery box is too high and the gas concentration is too high and exceeds the warning value to approach the dangerous value, the controller can control the valve on the fire-fighting pipeline to be opened at the moment, so that the standby gas-liquid two-phase spray head is started to extinguish the fire inside the battery box.
When the temperature sensor in the energy storage container collects the temperature in the whole energy storage container to be too high, the smoke sensor in the energy storage container collects smoke concentration to be too high, the fact that open fire is generated is required to extinguish fire, and when the temperature and the smoke concentration in the single battery box are not close to dangerous values, the controller can control the second electromagnet to be electrified with reverse current, so that the polarities of the second electromagnet and the magnets are the same, and the second electromagnet repels each other, the sliding blocks positioned on two sides of the lower portion of the mounting plate slide along the guide rail under the repulsive force effect, so that the standby gas-liquid two-phase spray head is driven to gradually withdraw from the through hole of the battery box until the nozzle of the gas-liquid two-phase spray head is completely positioned between the outside of the battery box and the shell of the energy storage container, then the controller controls the valve to be opened, the standby gas-liquid two-phase spray head is started to extinguish fire, meanwhile, after the standby gas-liquid two-phase spray head withdraws from the through hole, the battery box and the inner space of the energy storage container are communicated, so that the internal gas flow inside the battery box or the inner space of the energy storage container is better, and the explosion danger caused by mass aggregation of gas in the internal gas flow of the battery box or the gas flow difference inside the energy storage container is avoided, and the design has more outstanding technical effects.
The above embodiments are only preferred embodiments of the present invention, and the scope of the present invention is not limited thereto, but any insubstantial changes and substitutions made by those skilled in the art on the basis of the present invention are intended to be within the scope of the present invention as claimed.

Claims (6)

1. The utility model provides a battery box, includes annular curb plate, bottom plate and upper cover, its characterized in that: the annular side plate, the bottom plate and the upper cover are enclosed to form a first containing cavity capable of containing the battery module, the annular side plate comprises a first side plate, a second side plate opposite to the first side plate, a third side plate connected with the first side plate and the second side plate, and a fourth side plate opposite to the third side plate and connected with the first side plate and the second side plate, the first side plate and the second side plate both comprise a fixing part and a reinforcing part connected with the third side plate and the fourth side plate, the fixing part is parallel to the reinforcing part and has a gap, the outer side surface of the reinforcing part is provided with a plurality of lifting holes through which lifting hooks can pass, the bottom plate is welded with a first cross beam and a second cross beam connected with the first side plate and the second side plate, the first cross beam is close to the third side plate, the second cross beam is close to the fourth side plate, and the first cross beam and the second cross beam are both connected with a battery core mounting structure;
the battery cell mounting structure comprises a fire-fighting bracket and a plurality of fixing pieces for assisting in binding the battery cell group, wherein the fire-fighting bracket is connected with the fixing pieces, and the fixing pieces are respectively connected with the first cross beam and the second cross beam;
the fixing piece is provided with a first through groove penetrating through the upper end face and the lower end face of the fixing piece, the first through groove is provided with a plurality of connecting parts connecting two opposite inner side walls of the first through groove, the first through groove and the connecting parts are enclosed to form a second containing cavity, and the face, connected with the fixing piece, of the second cross beam is provided with a plurality of protruding blocks capable of extending into the second containing cavity;
the first cross beam is U-shaped, the end face of the vertical part of the first cross beam is connected with the bottom plate, and the horizontal and vertical part of the first cross beam is connected with the fixing piece;
the second cross beam is provided with a plurality of U-shaped second through grooves.
2. The battery box according to claim 1, wherein: the fire-fighting device comprises a fire-fighting support, a smoke sensor and an aerosol fire extinguisher, wherein the fire-fighting support is arranged on the fire-fighting support, the fire-fighting support is connected with the fire-fighting support through a fire-fighting sensor, the fire-fighting sensor is connected with the fire-fighting sensor through a fire-fighting sensor, and the fire-fighting sensor is connected with the fire-fighting sensor through a fire-fighting sensor.
3. The battery box according to claim 1, wherein: the mounting holes communicated with the second containing cavity are symmetrically formed in the outer side face of the fixing piece, the fire-fighting support is connected with the smoke sensor and the aerosol fire extinguisher in a hollowed-out mode, and the mounting holes can be opposite to the hollowed-out position.
4. The battery box according to claim 1, wherein: the heat insulation layer is arranged between the third cross beams and is attached to the inner side face of the bottom plate, and the outer side face of the third cross beams is parallel to the outer side face of the heat insulation layer and higher than the outer side face of the heat insulation layer.
5. The battery box according to claim 1, wherein: the lifting hole is of an inverted T shape.
6. A battery pack, characterized in that: comprising a battery compartment as claimed in claims 1-5.
CN202310565885.9A 2023-05-19 2023-05-19 Battery box and battery pack Active CN116565433B (en)

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Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108039434A (en) * 2017-12-05 2018-05-15 北京普莱德新能源电池科技有限公司 A kind of integral type water cooling power battery box
CN211879458U (en) * 2020-04-30 2020-11-06 比亚迪股份有限公司 Battery tray
CN212625866U (en) * 2020-08-19 2021-02-26 江苏塔菲尔动力系统有限公司 Battery box, battery package and car
CN112448086A (en) * 2019-08-16 2021-03-05 比亚迪股份有限公司 Battery tray, battery pack and vehicle
CN217182284U (en) * 2022-04-29 2022-08-12 爱驰汽车有限公司 Battery box and battery package
CN217239698U (en) * 2022-02-25 2022-08-19 山东德晋新能源科技有限公司 Novel battery module end plate
CN217589277U (en) * 2022-01-26 2022-10-14 湖北亿纬动力有限公司 Energy storage battery structure
CN218039442U (en) * 2022-08-31 2022-12-13 骆驼能源科技有限公司 Liquid cooling battery case and battery package
CN218996983U (en) * 2022-12-09 2023-05-09 厦门海辰储能科技股份有限公司 Battery box and battery pack

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108039434A (en) * 2017-12-05 2018-05-15 北京普莱德新能源电池科技有限公司 A kind of integral type water cooling power battery box
CN112448086A (en) * 2019-08-16 2021-03-05 比亚迪股份有限公司 Battery tray, battery pack and vehicle
CN211879458U (en) * 2020-04-30 2020-11-06 比亚迪股份有限公司 Battery tray
CN212625866U (en) * 2020-08-19 2021-02-26 江苏塔菲尔动力系统有限公司 Battery box, battery package and car
CN217589277U (en) * 2022-01-26 2022-10-14 湖北亿纬动力有限公司 Energy storage battery structure
CN217239698U (en) * 2022-02-25 2022-08-19 山东德晋新能源科技有限公司 Novel battery module end plate
CN217182284U (en) * 2022-04-29 2022-08-12 爱驰汽车有限公司 Battery box and battery package
CN218039442U (en) * 2022-08-31 2022-12-13 骆驼能源科技有限公司 Liquid cooling battery case and battery package
CN218996983U (en) * 2022-12-09 2023-05-09 厦门海辰储能科技股份有限公司 Battery box and battery pack

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