CN110148694A - Battery modules and battery pack - Google Patents
Battery modules and battery pack Download PDFInfo
- Publication number
- CN110148694A CN110148694A CN201910530563.4A CN201910530563A CN110148694A CN 110148694 A CN110148694 A CN 110148694A CN 201910530563 A CN201910530563 A CN 201910530563A CN 110148694 A CN110148694 A CN 110148694A
- Authority
- CN
- China
- Prior art keywords
- battery
- pressure relief
- battery core
- fire
- battery modules
- 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.)
- Pending
Links
- 239000003063 flame retardant Substances 0.000 claims abstract description 21
- 238000004880 explosion Methods 0.000 claims abstract description 11
- 238000003825 pressing Methods 0.000 claims description 30
- 238000007789 sealing Methods 0.000 claims description 10
- 230000005611 electricity Effects 0.000 claims description 3
- 238000012856 packing Methods 0.000 claims description 2
- 208000032767 Device breakage Diseases 0.000 abstract description 4
- 230000002633 protecting effect Effects 0.000 description 14
- 239000003795 chemical substances by application Substances 0.000 description 8
- 238000004146 energy storage Methods 0.000 description 7
- 238000010586 diagram Methods 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 4
- 238000002347 injection Methods 0.000 description 4
- 239000007924 injection Substances 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- PNEYBMLMFCGWSK-UHFFFAOYSA-N Alumina Chemical compound [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 239000003792 electrolyte Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
- 210000002421 cell wall Anatomy 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- UKACHOXRXFQJFN-UHFFFAOYSA-N heptafluoropropane Chemical compound FC(F)C(F)(F)C(F)(F)F UKACHOXRXFQJFN-UHFFFAOYSA-N 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 229910052744 lithium Inorganic materials 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 230000036632 reaction speed Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
- 239000011787 zinc oxide Substances 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C2/00—Fire prevention or containment
- A62C2/04—Removing or cutting-off the supply of inflammable material
-
- 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
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C35/00—Permanently-installed equipment
- A62C35/02—Permanently-installed equipment with containers for delivering the extinguishing substance
- A62C35/08—Containers destroyed or opened by bursting charge
-
- 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
- H01M50/342—Non-re-sealable arrangements
- H01M50/3425—Non-re-sealable arrangements in the form of rupturable membranes or weakened parts, e.g. pierced with the aid of a sharp member
-
- 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
-
- 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
- Health & Medical Sciences (AREA)
- Public Health (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Battery Mounting, Suspending (AREA)
Abstract
The present invention relates to a kind of battery modules and battery packs, wherein battery modules include battery core (10) and fire-retarding device (20), battery core (10) includes battery core body, shell and pressure relief device, battery core body and pressure relief device are arranged in shell, pressure relief device is used in the case where blast impulse caused by explosion time occurs for the pressure relief device rupture to discharge fire retardant to the battery core (10) for reducing the intracorporal air pressure of the shell, fire-retarding device (20) when the battery core (10) breaks down.Battery pack includes multiple battery modules.Fire-retarding device in the present invention can be ruptured by blast impulse caused by pressure relief device explosion in pressure relief device generation explosion time and discharge fire retardant to battery core, it is swift in response, extinguishing ability is strong, a possibility that battery core re-ignition can also be reduced, it is advantageously implemented complete fire extinguishing, improves the security performance of battery modules.
Description
Technical field
The present invention relates to battery technology field more particularly to a kind of battery modules and battery pack.
Background technique
When battery core is used for energy storage field, a large amount of battery core of serial or parallel connection is needed to form a battery modules, battery mould
Group is then assembled into battery PACK, then battery PACK is assembled into battery cluster, and battery cluster is finally constituted a complete energy storage list
Member externally provides DC bus, to reach the voltage requirements and electricity memory requirement that meet user side.
By taking 1MW lithium titanate energy storage container as an example, up to up to ten thousand, the quantity for being related to battery modules also reaches battery core used
Thousand.In entire energy storage container, each battery core uses the safe safety that can influence entire energy storage container.Exist at present
In the related technology, when handling the problem of battery core in energy storage container causes relief valve to be blown by short circuit, usually first lead to
The gas concentration in gas sensor induction container is crossed, gaseous type extinguishing chemical such as heptafluoro-propane of internal container etc. is restarted
It puts out a fire.This mode needs to start when gas concentration reaches setting condition the injection of extinguishing chemical, to the anti-of fire behavior
It should some lag；And when short circuit occur, all kinds of gathering lines aging, electric conduction phenomena may occur because of the corrosion of electrolyte
And causing battery core re-ignition again, the total amount and injecting time of gas extinguishing agent are limited, may therefore, it is difficult to realize complete fire extinguishing
Other battery cores are influenced, and then influence the safety of entire energy storage container.
It should be noted that the information for being disclosed in background of invention part is merely intended to increase to totality of the invention
The understanding of background, and be not construed as recognizing or imply in any form the information constitute by those skilled in the art public affairs
The prior art known.
Summary of the invention
The purpose of the present invention is to propose to a kind of battery modules and battery packs, the extinguishing ability in mould group can be improved, favorably
It puts out a fire completely in realizing.
To achieve the above object, the present invention provides a kind of battery modules, comprising:
Battery core, including battery core body, shell and pressure relief device, battery core body and pressure relief device are arranged in shell, let out
Pressure device is used to reduce the intracorporal air pressure of shell when battery core breaks down；With
Fire-retarding device, for rupturing in the case where blast impulse caused by explosion time occurs for pressure relief device to discharge and hinder to battery core
Fire agent.
In some embodiments, battery core is equipped with pressure relief opening, and pressure relief device is for opening pressure relief opening when battery core breaks down
Pressure release is carried out, pressure relief device and fire-retarding device are arranged at pressure relief opening.
In some embodiments, fire-retarding device includes:
Container, for storing fire retardant；
Connecting tube, with reservoir and one end far from container is equipped with the opening towards pressure relief opening；With
Sealing cover, for closing opening.
In some embodiments, fire-retarding device includes multiple connecting tubes, multiple connecting tubes and reservoir, battery modules
Including multiple battery cores, each connecting tube respectively corresponds a pressure relief opening.
In some embodiments, battery modules further include module chassis, and module chassis is equipped with multiple first grooves, each
Multiple card slots are equipped in first groove, battery core is mounted in card slot.
In some embodiments, battery modules further include pressing plate, and the side of the separate module chassis of battery core is arranged in pressing plate
For fixing battery core, battery core is equipped with anode, cathode and pressure relief opening, and pressing plate is equipped with for making the positive first through hole exposed, making
The second through-hole that cathode exposes and the third through-hole for exposing pressure relief opening.
In some embodiments, battery modules further include the fixation device for being fixed on fire-retarding device on pressing plate.
In some embodiments, fixed device includes the deck that the side of separate module chassis of pressing plate is arranged in, fire-retardant
Device is mounted on deck.
In some embodiments, battery modules further include strap and boss, and strap is for being packaged and fixing multiple electricity
Core forms the second groove between boss and deck, the second groove is for accommodating strap to prevent strap play.
In some embodiments, battery modules further include circuit board and the first company being connected between battery core and circuit board
Wiring and the second connecting line, the first connecting line are used to acquire the voltage of battery core, and the second connecting line is used to acquire the resistance of battery core.
In some embodiments, pressing plate is equipped with fourth hole, and circuit board is arranged in fourth hole, the hole of fourth hole
Wall is equipped with supporting block, and supporting block is used to support circuit board.
To achieve the above object, the present invention also provides a kind of battery packs, including multiple above-mentioned battery modules.
Based on the above-mentioned technical proposal, fire-retarding device is equipped in the embodiment of the present invention, fire-retarding device can be sent out in pressure relief device
Raw explosion time is ruptured by blast impulse caused by pressure relief device explosion, can be discharged to battery core after fire-retarding device rupture fire-retardant
Agent, to realize fire extinguishing.Compared to being discharged for the scheme of gas extinguishing agent by detection gas concentration in the related technology, originally
The scheme of inventive embodiments starts fire-retarding device by the blast impulse of pressure relief device, fast reaction may be implemented, not with gas
The size of bulk concentration come decide whether start fire-retarding device, can to avoid gas concentration not up to impose a condition when caused by pacify
Full hidden danger；Moreover, fire-retarding device realizes fire extinguishing by way of discharging fire retardant to battery core, relative to injection gas extinguishing agent
Mode for a possibility that can more efficiently protecting battery core, reducing battery core re-ignition, reduce to extinguishing chemical total amount and injection
The requirement of time improves the extinguishing ability in mould group, is advantageously implemented complete fire extinguishing, improves the security performance of battery modules.
Detailed description of the invention
The drawings described herein are used to provide a further understanding of the present invention, constitutes part of this application, this hair
Bright illustrative embodiments and their description are used to explain the present invention, and are not constituted improper limitations of the present invention.In the accompanying drawings:
Fig. 1 is the structural schematic diagram of battery modules one embodiment of the present invention.
Fig. 2 is the structural schematic diagram of battery core in battery modules one embodiment of the present invention.
Fig. 3 is the structural schematic diagram of fire-retarding device in battery modules one embodiment of the present invention.
Fig. 4 is the structural schematic diagram on chassis in battery modules one embodiment of the present invention.
Fig. 5 is the structural schematic diagram of pressing plate in battery modules one embodiment of the present invention.
Fig. 6 is the structural schematic diagram of circuit board in battery modules one embodiment of the present invention.
In figure:
10, battery core；20, fire-retarding device；30, module chassis；40, pressing plate；50, circuit board；60, the first connecting line；70,
Two connecting lines；
11, pressure relief opening；12, positive；13, cathode；
21, container；22, connecting tube；23, sealing cover；
31, the first groove；32, card slot；33, third groove；
41, first through hole；42, the second through-hole；43, third through-hole；44, fourth hole；45, the first protect-ing frame structure；46,
Two protect-ing frame structure；47, deck；48, boss；49, supporting block.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, is clearly and completely retouched to the technical solution in embodiment
It states.Obviously, described embodiment is only a part of the embodiments of the present invention, instead of all the embodiments.Based on this hair
Bright embodiment, every other implementation obtained by those of ordinary skill in the art without making creative efforts
Example, shall fall within the protection scope of the present invention.
In the description of the present invention, it is to be understood that, term " center ", " transverse direction ", " longitudinal direction ", "front", "rear",
The orientation or positional relationship of the instructions such as "left", "right", "upper", "lower", "vertical", "horizontal", "top", "bottom", "inner", "outside" is
It is based on the orientation or positional relationship shown in the drawings, is merely for convenience of description of the present invention and simplification of the description, rather than instruction or dark
Show that signified device or element must have a particular orientation, be constructed and operated in a specific orientation, therefore should not be understood as pair
The limitation of the scope of the present invention.
As shown in Figure 1, the battery modules include 10 He of battery core in one embodiment of battery modules provided by the invention
Fire-retarding device 20, battery core 10 include battery core body, shell and pressure relief device, and battery core body and pressure relief device are arranged at shell
Interior, pressure relief device is used to reduce the intracorporal air pressure of shell when battery core 10 breaks down, and fire-retarding device 20 is used to send out in pressure relief device
Rupture is under blast impulse caused by raw explosion time to discharge fire retardant to battery core 10.
In this embodiment, battery modules include fire-retarding device 20, and fire-retarding device 20 can explode in pressure relief device
When by pressure relief device explode caused by blast impulse rupture, fire-retarding device rupture after can to battery core discharge fire retardant, from
And realize fire extinguishing.Compared to being discharged for the scheme of gas extinguishing agent by detection gas concentration in the related technology, the implementation
The scheme of example starts fire-retarding device 20 by the blast impulse of pressure relief device, fast reaction may be implemented, not with gas concentration
Size come decide whether start fire-retarding device 20, can to avoid gas concentration not up to impose a condition when caused by safety it is hidden
Suffer from.
Moreover, fire-retarding device 20 realizes fire extinguishing by way of discharging fire retardant to battery core, go out relative to injection gas
A possibility that can more efficiently protecting battery core for the mode of fiery agent, reducing battery core re-ignition, reduce to extinguishing chemical total amount and
The requirement of injecting time improves the extinguishing ability in mould group, is advantageously implemented complete fire extinguishing, improves the safety of battery modules
Energy.
As shown in Fig. 2, battery core 10 is equipped with pressure relief opening 11, pressure relief device is for opening pressure release when battery core 10 breaks down
Mouth 11 carries out pressure releases, and pressure relief device and fire-retarding device 20 are arranged at pressure relief opening 11.
By the way that pressure relief device and fire-retarding device 20 to be arranged at pressure relief opening 11, fire-retarding device 20 can be made as much as possible
Close to pressure relief device, more quickly and blast impulse is directly passed to fire-retarding device in pressure relief device generation explosion time
20, make fire-retarding device 20 by that can rupture and discharge fire retardant after blast impulse rapidly, improves reaction speed.Also, it will let out
Pressure device and fire-retarding device 20 are arranged at pressure relief opening 11, can also increase impact force suffered by fire-retarding device 20 as far as possible, from
And fire retardant can be covered to the more large area of battery core 10 after the rupture of fire-retarding device 20, increase fire extinguishing range.
Optionally, the inside of battery core 10 is arranged in pressure relief device, and the outside of battery core 10 is arranged in fire-retarding device 20.
As shown in figure 3, fire-retarding device 20 includes container 21, connecting tube 22 and sealing cover 23, container 21 is fire-retardant for storing
Agent, connecting tube 22 are connected to container 21, and one end of the separate container 21 of connecting tube 22 is equipped with opening, are open towards 11 cloth of pressure relief opening
It sets, sealing cover 23 is for closing opening.Before assembly, fire retardant can be contained into container 21 by opening sealing cover 23, filled up
Sealing cover 23 is covered back again afterwards.Security performance when short circuit occurs for battery modules can be improved in fire retardant prepackage.
Fire retardant can be using solid powderies flame retardants such as aluminium oxide or zinc oxide.
Container 21 can be made of flexible insulating plastic, be to be readily disassembled and not using the benefit of flexible insulating plastic
Cracky, it is easy to maintain, it is at low cost.
Optionally, fire-retarding device 20 includes multiple connecting tubes 22, and multiple connecting tubes 22 are connected to container 21, battery modules
Including multiple battery cores 10, each connecting tube 22 respectively corresponds the pressure relief opening 11 in a battery core 10.
Container 21 is in long tubular, and a container 21, a container 21 and multiple connecting tubes 22 can be set in one group of battery core 10
Connection, connecting tube 22 and pressure relief opening 11 correspond, in this way can be in order to arrange and install, and the occupancy for saving fire-retarding device 20 is empty
Between.
As shown in figure 4, battery modules further include module chassis 30, module chassis 30 is equipped with multiple first grooves 31, often
Multiple card slots 32 are equipped in a first groove 31, battery core 10 is mounted in card slot 32.By the way that card slot 32 is arranged, can effectively improve
The stability of battery core 10.
As shown in figure 5, battery modules further include pressing plate 40, the one of the separate module chassis 30 of battery core 10 is arranged in pressing plate 40
Side is equipped with anode 12, cathode 13 and pressure relief opening 11 for fixing battery core 10, battery core 10, and pressing plate 40 is equipped with for making anode 12
The first through hole 41 of exposing, the second through-hole 42 for exposing cathode 13 and the third through-hole 43 for exposing pressure relief opening 11.
By the way that pressing plate 40 is arranged, battery core 10 can be further consolidated, the stability of battery modules is improved.It is arranged on pressing plate 40
First through hole 41, the second through-hole 42 and third through-hole 43, anode 12, cathode 13 and pressure relief opening 11 can on the one hand exposed,
Convenient for connection and pressure release；On the other hand, battery core 10 can also be positioned by these through-holes, prevents battery core 10 and battery core 10
Between relatively move.
Battery modules further include the fixation device for being fixed on fire-retarding device 20 on pressing plate 40.
The structure type of fixed device can there are many selections.In an alternative embodiment, fixed device includes setting
The deck 47 in the side of the separate module chassis 30 of pressing plate 40 is set, fire-retarding device 20 is mounted on deck 47.
As shown in figure 5, deck 47 is in C font, container 21 can be caught in deck 47 by the opening of deck 47.This knot
The deck 47 of configuration formula, structure is simple, and fixed function is good, and mounts and dismounts more convenient.
The first protect-ing frame structure 45 of first through hole 41 being circumferentially with for protecting anode 12, the circumferential direction of the second through-hole 42 are set
There is the second protect-ing frame structure 46 for protecting cathode 13, it, can be with by setting the first protect-ing frame structure 45 and the second protect-ing frame structure 46
Effective protection anode 12 and cathode 13, avoid anode 12 and cathode 13 from being damaged.
Battery modules further include strap and boss 48, and strap passes through packing for being packaged and fixing multiple battery cores 10
Multiple battery cores 10 can be fixed together by band.The second groove is formed between boss 48 and deck 47, the second groove is for accommodating
Strap is to prevent strap play.
As shown in fig. 6, battery modules further include circuit board 50, by the way that circuit board 50 is arranged, in parallel or string can will be used for
Connection battery core 10 connecting line be arranged on circuit board 50, avoid thering is too many cable to pass by the surface of battery core 10, prevent due to
Connecting line is short-circuit and leads to safety accident, improves the safety of battery modules.
Battery modules further include the first connecting line 60 and the second connecting line 70 being connected between battery core 10 and circuit board 50,
First connecting line 60 is used to acquire the voltage of battery core 10, and the second connecting line 70 is used to acquire the resistance of battery core 10, can adopt in real time
Collect the data such as temperature, the voltage of battery core 10, carries out security monitoring.
Pressing plate 40 is equipped with fourth hole 44, and circuit board 50 is arranged in fourth hole 44, on the hole wall of fourth hole 44
Equipped with supporting block 49, supporting block 49 is used to support circuit board 50.The mounting stability that circuit board 50 can be improved is set in this way.
When battery modules include multiple groups battery core 10, circuit board 50 be can be set between two groups of battery cores 10, accordingly, pressure
Fourth hole 44 on plate 40 is arranged between two groups of through-holes for exposing anode 12, cathode 13 and pressure relief opening 11.Mould group
It can also be correspondingly arranged third groove 33 on chassis 30, to mitigate overall weight, or accommodate other component.
The structure of 1~6 pair of battery modules one embodiment of the present invention and assembling process carry out specifically with reference to the accompanying drawing
It is bright:
As shown in Figure 1, in this embodiment, battery modules further include battery core 10, fire-retarding device 20, module chassis 30, pressure
Plate 40, circuit board 50, the first connecting line 60 and the second connecting line 70.
The battery modules include 8 battery cores 10, and every 4 battery cores 10 are one group, totally 2 groups.Every group of battery core 10 is equipped with a resistance
Fire device 20.
As shown in Fig. 2, each battery core 10 is equipped with pressure relief opening 11, anode 12 and cathode 13.Pressure release is equipped in battery core 10 to fill
It sets, pressure relief device is arranged at pressure relief opening 11.
As shown in figure 3, fire-retarding device 20 includes container 21, connecting tube 22 and sealing cover 23.4 are connected on 1 container 21
A connecting tube 22 respectively corresponds 4 pressure relief openings 11 in 4 battery cores 10.The opening of connecting tube 22 is towards pressure relief opening 11.
As shown in figure 4, being set in module chassis 30 there are two the first groove 31, each first groove 31 is interior to be equipped with 4 card slots
32,8 battery cores are separately mounted in 8 card slots 32 of two the first grooves 31.The circumferential cell wall of first groove 31 and card slot 32
Battery core 10 can be limited and be fixed.Third groove 33 is equipped between two the first grooves 31.
As shown in figure 5, the middle position of pressing plate 40 is equipped with fourth hole 44, the left side of fourth hole 44 is equipped with 4 first
41,4 the second through-hole 42 and 4 third through-holes 43 of through-hole can make the anode 12 of 4 battery cores 10 by 4 first through hole 41
Expose；The cathode 13 of 4 battery cores 10 can be made to expose by 4 the second through-holes 42；It can make 4 by 4 third through-holes 43
The pressure relief opening 11 of battery core 10 exposes, and the connecting tube 22 of fire-retarding device 20 is inserted into third through-hole 43 so as to close pressure relief opening 11 and is let out
Pressure device.
First through hole 41 is circumferentially with the first protect-ing frame structure 45, and the second through-hole 42 is circumferentially with the second protect-ing frame structure
46, deck 47 and boss 48, boss 48 and deck are respectively equipped with positioned at the outside of two third through-holes 43 of the two sides of pressing plate 40
The second groove is formed between 47, strap can pass through the second groove, prevent play.
Deck 47 and boss 48 are arranged at the upper surface of pressing plate 40.Deck 47 is in C font, is open towards right side.4th
The supporting block 49 for being used to support circuit board 50 is equipped in through-hole 44.
The right side of fourth hole 44 is symmetrical with left side, also is provided with 4 first through hole, 41,4 the second through-hole 42 and 4 thirds
Through-hole 43, first through hole 41 are circumferentially with the first protect-ing frame structure 45, and the second through-hole 42 is circumferentially with the second protect-ing frame structure 46,
Deck 47 and boss 48 are respectively equipped with positioned at the outside of two third through-holes 43 of the two sides of pressing plate 40.
As shown in fig. 6, circuit board 50 is equipped with multiple connectors, for connecting the anode 12 or cathode of multiple battery cores 10
13, realize multiple battery cores 10 in parallel or series.First connecting line 60 is used to acquire the voltage of battery core 10, and the second connecting line 70 is used
In the resistance of acquisition battery core 10.
Installation step is as follows:
(1), first 8 battery cores 10 are respectively placed in 8 card slots 32；
(2), pressing plate 40 is pressed in the top of battery core 10 again, 8 battery cores 10 are fixed, while making the anode in battery core 10
12, cathode 13 and pressure relief opening 11 expose；
(3), the battery core 10 assembled is and then put into welding bench, aluminium is welded at the anode 12 and cathode 13 of battery core 10
Row makes battery modules become 4P2S mould group (i.e. every 4 battery cores 10 are in parallel in groups, and two groups are connected again), reuses strap and fix
4P2S mould group；
(4), sealing cover 23 is opened, fire retardant is put into container 21 from the opening of connecting tube 22, then tightens sealing cover
23, then fire-retarding device 20 is mounted on the deck 47 of pressing plate 40, connecting tube 22 is inserted into the third through-hole 43 of pressing plate 40, is guaranteed
Fire-retarding device 20 is located at the top of pressure relief device；
(5) circuit board 50 is fixed in the fourth hole 44 of pressing plate 40 again, uses the first connecting line 60 and the second connection
Battery core 10 is connect by line 70 with circuit board 50, plays the role of collection voltages and resistance, so far, can obtain a structure letter
Battery modules single, stability is good.When experience external short circuit leads to pressure relief device explosion time, fire-retarding device 20 is due to by strong
Power impact causes the opening of connecting tube 22 to rupture, so that fire retardant to be sprayed to the surface of battery modules, realizes extinguishing effect, also
A possibility that battery core re-ignition can be reduced, promotes the security performance of battery.
Pass through the explanation to the multiple embodiments of battery modules of the present invention, it can be seen that battery modules embodiment of the present invention is being set
Setting fire-retarding device at the pressure relief opening of pressure relief device is set, fire-retardant powder can be discharged in pressure relief device explosion time, realize fire extinguishing
Effect can also reduce electrolyte leakage problem when short circuit occurs for battery core, reduce a possibility that re-ignition occurs, be advantageously implemented
Fire extinguishing completely；Modular structure is simple, is easily assembled to, and stability is good；Connecting line is replaced using circuit board, substantially reduces connection wiring harness
Combustion-supporting reaction in Subsequent secure accident promotes safety.
Based on above-mentioned battery modules, the present invention also proposes a kind of battery pack, which includes multiple above-mentioned batteries
Mould group.Positive technical effect possessed by battery modules is equally applicable to battery pack in above-mentioned each embodiment, no longer superfluous here
It states.
Finally it should be noted that: the above embodiments are merely illustrative of the technical scheme of the present invention and are not intended to be limiting thereof；To the greatest extent
The present invention is described in detail with reference to preferred embodiments for pipe, it should be understood by those ordinary skilled in the art that: still
It can modify to a specific embodiment of the invention or some technical features can be equivalently replaced；Without departing from this hair
The spirit of bright technical solution should all cover within the scope of the technical scheme claimed by the invention.
Claims (12)
1. a kind of battery modules characterized by comprising
Battery core (10), including battery core body, shell and pressure relief device, the battery core body and the pressure relief device are arranged at institute
It states in shell, the pressure relief device is for reducing the intracorporal air pressure of the shell when the battery core (10) breaks down；With
Fire-retarding device (20), for rupture to occur caused by explosion time under blast impulse with to the electricity in the pressure relief device
Core (10) discharges fire retardant.
2. battery modules according to claim 1, which is characterized in that the battery core (10) is equipped with pressure relief opening (11), described
Pressure relief device for opened when the battery core (10) breaks down the pressure relief opening (11) carry out pressure release, the pressure relief device and
The fire-retarding device (20) is arranged at the pressure relief opening (11).
3. battery modules according to claim 2, which is characterized in that the fire-retarding device (20) includes:
Container (21), for storing the fire retardant；
Connecting tube (22), is connected to the container (21) and one end far from the container (21) is equipped with towards the pressure relief opening
(11) opening；With
Sealing cover (23), for closing the opening.
4. battery modules according to claim 3, which is characterized in that the fire-retarding device (20) includes multiple connections
It manages (22), multiple connecting tubes (22) are connected to the container (21), and the battery modules include multiple battery cores
(10), each connecting tube (22) respectively corresponds the pressure relief opening (11).
5. battery modules according to claim 1, which is characterized in that further include module chassis (30), the module chassis
(30) multiple first grooves (31) are equipped with, are equipped with multiple card slots (32) in each first groove (31), the battery core
(10) it is mounted in the card slot (32).
6. battery modules according to claim 5, which is characterized in that it further include pressing plate (40), pressing plate (40) setting
In the side far from the module chassis (30) of the battery core (10) for fixing the battery core (10), the battery core (10) is set
There are positive (12), cathode (13) and a pressure relief opening (11), the pressing plate (40) is equipped with for making positive (12) exposing
One through-hole (41), the second through-hole (42) for exposing the cathode (13) and the third through-hole for exposing the pressure relief opening (11)
(43)。
7. battery modules according to claim 6, which is characterized in that further include for the fire-retarding device (20) are fixed
Fixation device on the pressing plate (40).
8. battery modules according to claim 7, which is characterized in that the fixed device includes being arranged in the pressing plate
(40) deck (47) of the side far from the module chassis (30), the fire-retarding device (20) are mounted on the deck (47)
On.
9. battery modules according to claim 8, which is characterized in that further include strap and boss (48), the packing
Band is used to being packaged and fixing multiple battery cores (10), forms the second groove between the boss (48) and the deck (47),
Second groove is for accommodating the strap to prevent the strap play.
10. battery modules according to claim 6, which is characterized in that further include circuit board (50) and be connected to described
The first connecting line (60) and the second connecting line (70) between battery core (10) and the circuit board (50), first connecting line
(60) for acquiring the voltage of the battery core (10), second connecting line (70) is used to acquire the resistance of the battery core (10).
11. battery modules according to claim 10, which is characterized in that the pressing plate (40) is equipped with fourth hole
(44), in the fourth hole (44), the hole wall of the fourth hole (44) is equipped with support for circuit board (50) setting
Block (49), the supporting block (49) are used to support the circuit board (50).
12. a kind of battery pack, which is characterized in that including multiple battery modules as claimed in any one of claims 1 to 11.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910530563.4A CN110148694A (en) | 2019-06-19 | 2019-06-19 | Battery modules and battery pack |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910530563.4A CN110148694A (en) | 2019-06-19 | 2019-06-19 | Battery modules and battery pack |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110148694A true CN110148694A (en) | 2019-08-20 |
Family
ID=67595841
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910530563.4A Pending CN110148694A (en) | 2019-06-19 | 2019-06-19 | Battery modules and battery pack |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110148694A (en) |
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| CN110600787A (en) * | 2019-09-30 | 2019-12-20 | 芜湖天弋能源科技有限公司 | Power battery mould group becomes device |
| CN111682142A (en) * | 2020-06-30 | 2020-09-18 | 上海豫源电力科技有限公司 | Battery pack with fire-fighting function and control method thereof |
| CN113113709A (en) * | 2021-04-22 | 2021-07-13 | 远景动力技术(江苏)有限公司 | Battery pack and fire extinguishing method thereof |
| CN113948807A (en) * | 2020-07-16 | 2022-01-18 | 哲弗智能系统（上海）有限公司 | Battery pack with intelligent fixed-point fire extinguishing function |
| US20220096885A1 (en) * | 2020-09-28 | 2022-03-31 | Hamilton Sundstrand Corporation | Extinguishing battery thermal runaway |
| WO2022082391A1 (en) * | 2020-10-19 | 2022-04-28 | 江苏时代新能源科技有限公司 | Battery, electric apparatus, and battery manufacturing method and device |
| WO2022082397A1 (en) * | 2020-10-19 | 2022-04-28 | 江苏时代新能源科技有限公司 | Battery, electric apparatus, and method and device for preparing battery |
| CN114512762A (en) * | 2020-10-29 | 2022-05-17 | 恒大新能源技术(深圳)有限公司 | Box, battery package and electric automobile |
| WO2023097440A1 (en) * | 2021-11-30 | 2023-06-08 | 宁德时代新能源科技股份有限公司 | Battery, electrical apparatus, and method and apparatus for preparing battery |
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| CN110600787A (en) * | 2019-09-30 | 2019-12-20 | 芜湖天弋能源科技有限公司 | Power battery mould group becomes device |
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| EP4009433A4 (en) * | 2020-10-19 | 2022-06-08 | Jiangsu Contemporary Amperex Technology Limited | Battery, electric apparatus, and battery manufacturing method and device |
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| CN113113709A (en) * | 2021-04-22 | 2021-07-13 | 远景动力技术(江苏)有限公司 | Battery pack and fire extinguishing method thereof |
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