CN117293433A - Immersed liquid-cooled battery system and explosion-proof method - Google Patents
Immersed liquid-cooled battery system and explosion-proof method Download PDFInfo
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- CN117293433A CN117293433A CN202311590918.1A CN202311590918A CN117293433A CN 117293433 A CN117293433 A CN 117293433A CN 202311590918 A CN202311590918 A CN 202311590918A CN 117293433 A CN117293433 A CN 117293433A
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- battery cell
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- 238000000034 method Methods 0.000 title claims abstract description 21
- 238000006748 scratching Methods 0.000 claims abstract description 53
- 230000002393 scratching effect Effects 0.000 claims abstract description 53
- 239000007788 liquid Substances 0.000 claims abstract description 38
- 238000012544 monitoring process Methods 0.000 claims abstract description 36
- 238000007654 immersion Methods 0.000 claims abstract description 34
- 238000003860 storage Methods 0.000 claims abstract description 23
- 208000034693 Laceration Diseases 0.000 claims description 18
- 230000008859 change Effects 0.000 claims description 12
- 230000002093 peripheral effect Effects 0.000 claims description 12
- 238000001514 detection method Methods 0.000 claims description 10
- WVLBCYQITXONBZ-UHFFFAOYSA-N trimethyl phosphate Chemical compound COP(=O)(OC)OC WVLBCYQITXONBZ-UHFFFAOYSA-N 0.000 claims description 4
- 238000001816 cooling Methods 0.000 description 14
- 230000002159 abnormal effect Effects 0.000 description 10
- 238000004880 explosion Methods 0.000 description 8
- 238000009434 installation Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
- 238000004146 energy storage Methods 0.000 description 1
- 239000003063 flame retardant Substances 0.000 description 1
- 230000014509 gene expression Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
Classifications
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- 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
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/48—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte
- H01M10/482—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte for several batteries or cells simultaneously or sequentially
-
- 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
-
- 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
- H01M10/63—Control systems
-
- 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
- H01M10/63—Control systems
- H01M10/633—Control systems characterised by algorithms, flow charts, software details or the like
-
- 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
- H01M10/656—Means for temperature control structurally associated with the cells characterised by the type of heat-exchange fluid
- H01M10/6567—Liquids
-
- 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
- H01M50/30—Arrangements for facilitating escape of gases
- H01M50/383—Flame arresting or ignition-preventing means
Abstract
The invention provides an immersed liquid-cooled battery system and an explosion-proof method. The battery cabinet is provided with a storage cavity, a plurality of electric cores and immersion liquid are stored in the storage cavity, and the electric cores are immersed in the immersion liquid. The plurality of battery cells are all connected with the monitoring module, and the monitoring module is used for detecting the working parameters of the plurality of battery cells. The breaking structure is movably arranged in the battery cabinet, and the breaking part of the breaking structure is used for breaking the explosion-proof valve of the battery core so that no liquid enters the battery core through the breaking opening. The monitoring module and the scratching structure are connected with the control module, so that the control module controls the operation of the scratching structure according to the working parameters detected by the monitoring module. By the technical scheme provided by the invention, the technical problem of poor safety of the battery cell in the immersed liquid-cooled battery system in the prior art can be solved.
Description
Technical Field
The invention relates to the technical field of immersed energy storage, in particular to an immersed liquid-cooled battery system and an explosion-proof method.
Background
At present, in the use process of an immersed liquid cooling battery system in the prior art, when the battery core works abnormally, the battery core is easy to explode or fire, so that serious potential safety hazards are brought. And for the immersed liquid cooling battery system, because the immersed liquid cooling battery system is generally of a closed structure, even if an internal battery core explodes or changes, the hidden danger is difficult to eliminate in time, and the safety of the immersed liquid cooling battery system is poor.
Disclosure of Invention
The invention mainly aims to provide an immersed liquid-cooled battery system and an explosion-proof method, so as to solve the technical problem of poor safety of an electric core in the immersed liquid-cooled battery system in the prior art.
In order to achieve the above object, according to one aspect of the present invention, there is provided an immersion liquid-cooled battery system including: the battery cabinet is provided with a storage cavity, a plurality of electric cores and immersion liquid are stored in the storage cavity, and the electric cores are immersed in the immersion liquid; the monitoring module is connected with the plurality of battery cells and used for detecting working parameters of the plurality of battery cells; the battery cell comprises a battery cabinet, a breaking structure and a control module, wherein the breaking structure is movably arranged in the battery cabinet, and a breaking part of the breaking structure is used for breaking an explosion-proof valve of the battery cell so as to enable immersion liquid to enter the battery cell through a breaking opening; the monitoring module and the scratching structure are connected with the control module, so that the control module controls the operation of the scratching structure according to the working parameters detected by the monitoring module.
Further, the laceration structure includes: the main body part is provided with an installation cavity and an installation opening communicated with the installation cavity; and the control module is used for controlling the movement of the scratching blade to the scratching position extending out of the mounting opening and the avoiding position retracting into the mounting cavity.
Further, the laceration structure further comprises: the telescopic driving assembly is arranged on the main body part and is in driving connection with the lacerating blade; the telescopic driving assembly is provided with a first driving state and a second driving state; when the telescopic driving assembly is in a first driving state, the telescopic driving assembly drives the lacerating blade to move to a lacerating position or an avoiding position; when the telescopic driving assembly is in the laceration position, the telescopic driving assembly is in a second driving state, and the driving part of the telescopic driving assembly reciprocates up and down in a preset height range.
Further, the drive assembly includes: and the driving part of the moving driving assembly moves along the peripheral direction of the explosion-proof valve, and is in driving connection with the telescopic driving assembly so as to drive the telescopic driving assembly to move along the peripheral direction of the explosion-proof valve.
Further, the immersion liquid cooling battery system further includes: the position detection piece is arranged on the lacerating structure, is connected with the control module, and is used for detecting the position of the battery core and the position of the explosion-proof valve, and the detection part of the position detection piece is arranged towards the battery core; after the position detecting piece detects the battery core, the position detecting piece detects and identifies the position of the explosion-proof valve of the battery core and sends the peripheral position information and the peripheral shape information of the explosion-proof valve to the control module, so that the control module controls the scratching structure to move along the periphery of the explosion-proof valve.
Further, the immersion liquid cooling battery system further includes: the driving module is connected with the control module, and is movably arranged in the storage cavity and is in driving connection with the scratching structure so as to drive the scratching structure to move in the storage cavity.
Further, the driving module includes: the driving part of the first driving structure is movably arranged in the storage cavity along a first preset direction and is in driving connection with the scratching structure; the driving part of the second driving structure is movably arranged in the storage cavity along a second preset direction and is in driving connection with the first driving structure; the driving part of the third driving structure is movably arranged in the storage cavity along a third preset direction, and the driving part of the third driving structure is in driving connection with the second driving structure.
Further, the monitoring module includes: the temperature monitoring structure is connected with the plurality of battery cells so as to monitor the temperatures of the plurality of battery cells through the temperature monitoring structure; and/or, the internal resistance monitoring structure is connected with the plurality of battery cells so as to monitor the internal resistances of the plurality of battery cells through the internal resistance monitoring structure.
Further, the immersion liquid is made of trimethyl phosphate.
According to another aspect of the present invention, there is provided an explosion-proof method of an immersion liquid-cooled battery system, the explosion-proof method including: acquiring working parameters of a plurality of electric cores, and comparing the working parameters of the electric cores with preset parameters; determining the battery cells to be exploded according to the comparison result of the working parameters of the battery cells and the preset parameters; the method comprises the steps of obtaining the position condition of a battery cell to be exploded, controlling the movement of a scratching structure according to the position condition of the battery cell to be exploded, and controlling the scratching structure to conduct scratching operation on an explosion-proof valve of the battery cell to be exploded, so that immersion liquid enters the battery cell to be exploded through a scratching opening of the explosion-proof valve.
Further, determining the battery cell to be exploded according to the comparison result of the working parameters of the battery cells and the preset parameters, including: and when the voltage abrupt change value of the battery cell is larger than a preset voltage value or when the internal resistance abrupt change value of the battery cell is larger than a preset internal resistance value, judging the battery cell as the battery cell to be exploded.
Further, determining the battery cell to be exploded according to the comparison result of the working parameters of the battery cells and the preset parameters, including: when the voltage abrupt change value of the battery cell is larger than 0.1V/S or when the internal resistance abrupt change value of the battery cell is larger than 1mΩ, the battery cell is judged to be the battery cell to be exploded.
By applying the technical scheme of the invention, the monitoring module monitors each cell in the battery cabinet in real time, the control module controls the scratching structure according to the working parameters detected by the monitoring module, when the detection module detects that the working parameters are abnormal, the control module controls the scratching part of the scratching structure to puncture the explosion-proof valve of the cell, and the immersion liquid enters the cell through the puncturing opening so as to cool and reduce the pressure in the cell, thereby actively eliminating potential safety hazards and avoiding the occurrence of fire or explosion.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention. In the drawings:
fig. 1 is a schematic diagram of an immersion liquid-cooled battery system according to a first embodiment of the present invention;
fig. 2 is a schematic flow chart of an explosion-proof method of an immersed liquid-cooled battery system according to a second embodiment of the present invention;
fig. 3 is a schematic diagram showing an overall control flow of an explosion-proof method of an immersion liquid-cooled battery system according to a second embodiment of the present invention.
Wherein the above figures include the following reference numerals:
10. a battery cell; 11. an explosion-proof valve; 20. a lacerating structure; 21. a main body portion; 22. a lacerating blade.
Detailed Description
It should be noted that, in the case of no conflict, the embodiments and features in the embodiments may be combined with each other. The invention will be described in detail below with reference to the drawings in connection with embodiments.
As shown in fig. 1, a first embodiment of the present invention provides an immersion liquid-cooled battery system, which includes a battery cabinet, a plurality of battery cells 10, a monitoring module, a lancing structure 20, and a control module. The battery cabinet is provided with a storage cavity, a plurality of battery cells 10 and immersion liquid are stored in the storage cavity, and the battery cells 10 are immersed in the immersion liquid. The plurality of battery cells 10 are all connected with a monitoring module, and the monitoring module is used for detecting the working parameters of the plurality of battery cells 10. The puncturing structure 20 is movably disposed in the battery cabinet, and a puncturing portion of the puncturing structure 20 is used for puncturing the explosion-proof valve 11 of the battery cell 10, so that no liquid enters the battery cell 10 through the puncturing opening. The monitoring module and the laceration structure 20 are both connected with the control module, so that the control module controls the operation of the laceration structure 20 according to the working parameters detected by the monitoring module.
By using the immersed liquid cooling battery system provided by the embodiment, the monitoring module monitors each battery cell 10 in the battery cabinet in real time, the control module controls the scratching structure 20 according to the working parameters detected by the monitoring module, when the detection module detects that the working parameters are abnormal, the control module controls the scratching structure 20 to puncture the explosion-proof valve 11 of the battery cell 10, and the immersion liquid enters the battery cell 10 through the puncturing opening so as to cool and reduce the pressure in the battery cell 10, thereby eliminating potential safety hazards and avoiding the condition of fire or explosion. Therefore, through the immersion liquid cooling battery system provided by the embodiment, the technical problem that the safety of the battery cell 10 in the immersion liquid cooling battery system in the prior art is poor can be solved.
In the present embodiment, the laceration mechanism 20 includes a body portion 21 and a laceration blade 22. Wherein, the main body part 21 is provided with a mounting cavity and a mounting opening communicated with the mounting cavity; the lacerating blade 22 forms a lacerating portion of the lacerating structure 20, and the lacerating blade 22 is telescopically disposed at the mounting opening to control movement of the lacerating blade 22 to a lacerating position extending out of the mounting opening and to an evading position retracted into the mounting cavity by the control module. When the battery cell 10 works normally, the control module controls the lacerating blade 22 to retract to the avoiding position, so that the battery cell 10 can be prevented from being damaged due to leakage of the lacerating blade; when the battery cell 10 works abnormally, the control module controls the scratching blade 22 to extend out of the scratching position so as to puncture the explosion-proof valve 11 to relieve hidden danger. By adopting the arrangement, the damage to the normally operating battery cell 10 caused by the scratching structure 20 can be avoided, the hidden danger to the abnormally operating battery cell 10 can be eliminated in time, and the safety of the immersed liquid-cooled battery system is improved.
Specifically, the number of the breaking structures 20 may be multiple, and the breaking structures 20 can facilitate the breaking operation to the multiple abnormal cells 10, so as to effectively reduce the potential safety hazards of the multiple abnormal cells 10.
In this embodiment, the laceration mechanism 20 further includes a telescoping drive assembly disposed on the body portion 21 in driving connection with the laceration blade 22. The telescopic driving assembly is provided with a first driving state and a second driving state; when the telescopic driving assembly is in the first driving state, the telescopic driving assembly drives the lacerating blade 22 to move to a lacerating position or an avoiding position; when the telescopic driving assembly is in the laceration position, the telescopic driving assembly is in a second driving state, and the driving part of the telescopic driving assembly reciprocates up and down in a preset height range. With such an arrangement, the structure is simple, and the position of the laceration blade 22 can be stably controlled. And when the telescopic driving assembly is positioned at the laceration position, the driving part of the telescopic driving assembly reciprocates up and down in a preset height range, so that the laceration blade 22 is driven to reciprocate, and the laceration blade 22 is convenient to better puncture the explosion-proof valve 11.
In particular, the end of the lacerating blade 22 adjacent to the cell 10 may be pointed in configuration to facilitate better puncturing of the explosion proof valve 11.
In this embodiment, the driving assembly includes a moving driving assembly, and a driving portion of the moving driving assembly moves along a peripheral direction of the explosion-proof valve 11, and the driving portion of the moving driving assembly is in driving connection with the telescopic driving assembly, so as to drive the telescopic driving assembly to move along the peripheral direction of the explosion-proof valve 11. In this way, the periphery of the explosion-proof valve 11 can be adapted to better, the structural strength of the periphery of the explosion-proof valve 11 is weaker, the puncture operation is facilitated, and a larger puncture opening is formed effectively, so that the immersion liquid can enter the battery cell 10 through the puncture opening better.
Specifically, the periphery of the explosion proof valve 11 forms a racetrack-shaped scored area. With such a configuration, the entire racetrack-shaped scratch area of the explosion-proof valve 11 can be rapidly scratched to increase the area of the puncture, so that more immersion liquid can enter the cell 10 through the puncture more rapidly, thereby eliminating potential safety hazards more rapidly.
In this embodiment, the submerged liquid-cooled battery system further includes a position detecting member disposed on the burst structure 20 and connected to the control module, and a detecting portion of the position detecting member is disposed toward the battery cell 10 for detecting a position of the battery cell 10 and a position of the explosion-proof valve 11. When the battery cell 10 is detected, the position detecting member detects and identifies the position of the explosion-proof valve 11 of the battery cell 10, and sends the peripheral position information and the peripheral shape information of the explosion-proof valve 11 to the control module, so that the control module controls the laceration structure 20 to move along the periphery of the explosion-proof valve 11. Thus, the position and the shape of the explosion-proof valve 11 can be recognized more accurately, so that the burst blade 22 is controlled to puncture the explosion-proof valve 11 in time, and potential safety hazards are eliminated more accurately.
In this embodiment, the submerged liquid-cooled battery system further includes a driving module. The driving module is connected with the control module, and the driving module is movably arranged in the storage cavity and is in driving connection with the scratching structure 20 so as to drive the scratching structure 20 to move in the storage cavity. Thus, different battery cells 10 can be pierced through the single scratching structure 20, and when the operation of the battery cells 10 is abnormal, the control module controls the scratching structure 20 to scratch the battery cells 10 with abnormal operation, so that the requirements of eliminating potential safety hazards can be met, and the manufacturing cost can be saved.
In this embodiment, the driving module includes: the first driving structure, the second driving structure and the third driving structure. Wherein the driving part of the first driving structure is movably arranged in the storage cavity along the first preset direction, and the driving part of the first driving structure is in driving connection with the scratching structure 20; the driving part of the second driving structure is movably arranged in the storage cavity along a second preset direction and is in driving connection with the first driving structure; the driving part of the third driving structure is movably arranged in the storage cavity along a third preset direction, and the driving part of the third driving structure is in driving connection with the second driving structure. Specifically, the first preset direction, the second preset direction and the third preset direction are perpendicular to each other. Like this, can control through drive module and scratch the structure 20 and freely remove in whole depositing the intracavity for scratch the structure 20 and can remove the unusual electric core 10 department of work, thereby in time eliminate the potential safety hazard.
In this embodiment, the monitoring module includes at least one of a temperature monitoring structure and an internal resistance monitoring structure. The plurality of battery cells 10 are connected with the temperature monitoring structure, so that the temperature of the plurality of battery cells 10 is monitored through the temperature monitoring structure; the plurality of battery cells 10 are all connected with the internal resistance monitoring structure so as to monitor the internal resistances of the plurality of battery cells 10 through the internal resistance monitoring structure. When the internal resistance of the battery cell 10 is too large or the temperature is too high, a fire or explosion easily occurs. Through the arrangement, the electric core 10 can be detected in real time, and when the temperature and the internal resistance of the electric core 10 are abnormal, abnormal information can be timely sent to the control structure, so that the safety of the immersed liquid cooling battery system is improved.
In this embodiment, the immersion liquid is made of trimethyl phosphate. Trimethyl phosphate has good cooling effect and flame retardant capability, can not only meet the requirement of cooling the battery cell 10, but also prevent the battery cell 10 from igniting or exploding when the battery cell 10 works abnormally, thereby improving the safety of the immersed liquid cooling battery system.
As shown in fig. 2, a second embodiment of the present invention provides an explosion-proof method of an immersion liquid cooling battery system, where the explosion-proof method includes: acquiring working parameters of a plurality of battery cells 10, and comparing the working parameters of the battery cells 10 with preset parameters; determining the battery cells 10 to be exploded according to the comparison result of the working parameters of the battery cells 10 and the preset parameters; the position condition of the battery cell 10 to be exploded is obtained, the movement of the scratching structure 20 is controlled according to the position condition of the battery cell 10 to be exploded, and the scratching structure 20 is controlled to conduct scratching operation on the explosion-proof valve 11 of the battery cell 10 to be exploded, so that immersion liquid enters the battery cell 10 to be exploded through the scratching opening of the explosion-proof valve 11.
By adopting the explosion-proof method of the immersed liquid-cooled battery system, each battery cell 10 in the battery cabinet is monitored in real time, the scratching structure 20 is controlled according to the comparison result of the working parameters of the battery cell 10 and the preset parameters, when the working parameters of the battery cell 10 are abnormal, the scratching structure 20 is controlled to scratch the explosion-proof valve 11, and external immersion liquid is timely introduced into the battery cell 10 through the puncturing opening, so that the inside of the battery cell 10 is cooled and depressurized, potential safety hazards are eliminated, and the condition of fire or explosion is avoided. Therefore, by the explosion-proof method of the immersed liquid-cooled battery system provided by the embodiment, the technical problem of poor safety of the battery cell 10 in the immersed liquid-cooled battery in the prior art can be solved.
In this embodiment, determining the battery cell 10 to be exploded according to the comparison result of the working parameters of the battery cells 10 and the preset parameters includes: when the voltage abrupt change value of the battery cell 10 is greater than a preset voltage value, or when the internal resistance abrupt change value of the battery cell 10 is greater than a preset internal resistance value, the battery cell 10 is judged to be the battery cell 10 to be exploded. When the voltage or internal resistance of the battery cell 10 is excessively large, the condition of ignition or explosion is easy to occur, by the method, the battery cell 10 can be detected in real time, and when the voltage or internal resistance of the battery cell 10 is abnormal, the scratching structure 20 can be controlled to scratch the battery cell 10 to be exploded in time, so that the ignition or explosion of the battery is prevented.
As shown in fig. 3, in this embodiment, determining the battery cell 10 to be exploded according to the comparison result of the working parameters of the battery cells 10 and the preset parameters includes: when the voltage abrupt change value of the battery cell 10 is larger than 0.1V/S, or when the internal resistance abrupt change value of the battery cell 10 is larger than 1mΩ, the battery cell 10 is judged to be the battery cell 10 to be exploded, at the moment, the system sends out an instruction of actively tearing the explosion-proof valve 11, the tearing blade 22 punctures the explosion-proof valve 11, and cuts the scratch area of the explosion-proof valve 11, and the immersion liquid is introduced into the battery cell 10 through the puncture opening so as to cool and reduce the pressure inside the battery cell 10. By the arrangement, the battery cell 10 to be exploded can be found and processed in time, so that the safety of the immersed liquid-cooled battery is improved.
From the above description, it can be seen that the above embodiments of the present invention achieve the following technical effects: when the battery cell 10 works abnormally, the explosion-proof valve 11 of the battery cell 10 is actively scratched by the scratching structure 20, and external immersion liquid is timely introduced into the battery cell 10 through the puncturing opening, so that the inside of the battery cell 10 is cooled and depressurized, the battery is prevented from being ignited or exploded, the use safety of the battery cell 10 is improved, and the safety of an immersed liquid-cooled battery system is further improved.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments in accordance with the present application. As used herein, the singular is also intended to include the plural unless the context clearly indicates otherwise, and furthermore, it is to be understood that the terms "comprises" and/or "comprising" when used in this specification are taken to specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof.
The relative arrangement of the components and steps, numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present application unless it is specifically stated otherwise. Meanwhile, it should be understood that the sizes of the respective parts shown in the drawings are not drawn in actual scale for convenience of description. Techniques, methods, and apparatus known to one of ordinary skill in the relevant art may not be discussed in detail, but should be considered part of the specification where appropriate. In all examples shown and discussed herein, any specific values should be construed as merely illustrative, and not a limitation. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further discussion thereof is necessary in subsequent figures.
In the description of the present application, it should be understood that, where azimuth terms such as "front, rear, upper, lower, left, right", "transverse, vertical, horizontal", and "top, bottom", etc., indicate azimuth or positional relationships generally based on those shown in the drawings, only for convenience of description and simplification of the description, these azimuth terms do not indicate and imply that the apparatus or elements referred to must have a specific azimuth or be constructed and operated in a specific azimuth, and thus should not be construed as limiting the scope of protection of the present application; the orientation word "inner and outer" refers to inner and outer relative to the contour of the respective component itself.
Spatially relative terms, such as "above … …," "above … …," "upper surface at … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial location relative to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "above" or "over" other devices or structures would then be oriented "below" or "beneath" the other devices or structures. Thus, the exemplary term "above … …" may include both orientations of "above … …" and "below … …". The device may also be positioned in other different ways (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.
In addition, the terms "first", "second", etc. are used to define the components, and are merely for convenience of distinguishing the corresponding components, and unless otherwise stated, the terms have no special meaning, and thus should not be construed as limiting the scope of the present application.
The above description is only of the preferred embodiments of the present invention and is not intended to limit the present invention, but various modifications and variations can be made to the present invention by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (12)
1. An immersion liquid cooled battery system, comprising:
a battery cabinet and a plurality of electric cores (10), wherein the battery cabinet is provided with a storage cavity, the plurality of electric cores (10) and immersion liquid are stored in the storage cavity, and the plurality of electric cores (10) are immersed in the immersion liquid;
the monitoring module is connected with the plurality of battery cells (10) and is used for detecting working parameters of the plurality of battery cells (10);
the battery pack comprises a scratching structure (20) and a control module, wherein the scratching structure (20) is movably arranged in the battery pack, and the scratching part of the scratching structure (20) is used for puncturing an explosion-proof valve (11) of a battery cell (10) so as to enable the immersion liquid to enter the battery cell (10) through a puncturing opening; the monitoring module and the laceration structure (20) are both connected with the control module, so that the control module controls the operation of the laceration structure (20) according to the working parameters detected by the monitoring module.
2. The submerged, liquid-cooled battery system according to claim 1, wherein the lacerating structure (20) comprises:
a main body part (21), wherein the main body part (21) is provided with a mounting cavity and a mounting opening communicated with the mounting cavity;
the scratching blade (22), the scratching blade (22) forms the scratching part of the scratching structure (20), and the scratching blade (22) is telescopically arranged at the mounting opening, so that the scratching blade (22) is controlled to move to the scratching position stretching out of the mounting opening and retract to the avoiding position in the mounting cavity through the control module.
3. The submerged, liquid-cooled battery system of claim 2, characterized in that the lacerating structure (20) further comprises:
the telescopic driving assembly is arranged on the main body part (21) and is in driving connection with the lacerating blade (22);
the telescopic driving assembly is provided with a first driving state and a second driving state; when the telescopic driving assembly is in the first driving state, the telescopic driving assembly drives the lacerating blade (22) to move to the lacerating position or the avoiding position; when the telescopic driving assembly is positioned at the laceration position, the telescopic driving assembly is positioned in the second driving state, and the driving part of the telescopic driving assembly reciprocates up and down in a preset height range.
4. The submerged, liquid-cooled battery system of claim 3, wherein the drive assembly comprises:
and the driving part of the moving driving assembly moves along the peripheral direction of the explosion-proof valve (11), and the driving part of the moving driving assembly is in driving connection with the telescopic driving assembly so as to drive the telescopic driving assembly to move along the peripheral direction of the explosion-proof valve (11).
5. The submerged, liquid-cooled battery system of claim 1, further comprising:
the position detection piece is arranged on the lacerating structure (20), the position detection piece is connected with the control module, the detection part of the position detection piece is arranged towards the battery cell (10), and the position detection piece is used for detecting the position of the battery cell (10) and the position of the explosion-proof valve (11);
when the position detecting piece detects the battery core (10), the position detecting piece detects and identifies the position of the explosion-proof valve (11) of the battery core (10) and sends peripheral position information and peripheral shape information of the explosion-proof valve (11) to the control module, so that the control module controls the scratching structure (20) to move along the periphery of the explosion-proof valve (11).
6. The submerged, liquid-cooled battery system of claim 1, further comprising:
the driving module is connected with the control module, the driving module is movably arranged in the storage cavity, and the driving module is in driving connection with the scratching structure (20) so as to drive the scratching structure (20) to move in the storage cavity.
7. The submerged, liquid-cooled battery system of claim 6, wherein the drive module comprises:
the driving part of the first driving structure is movably arranged in the storage cavity along a first preset direction and is in driving connection with the scratching structure (20);
the driving part of the second driving structure is movably arranged in the storage cavity along a second preset direction and is in driving connection with the first driving structure;
the driving part of the third driving structure is movably arranged in the storage cavity along a third preset direction, and the driving part of the third driving structure is in driving connection with the second driving structure.
8. The submerged, liquid-cooled battery system of claim 1, wherein the monitoring module comprises:
the temperature monitoring structure is connected with the plurality of battery cells (10) so as to monitor the temperatures of the plurality of battery cells (10) through the temperature monitoring structure; and/or the number of the groups of groups,
and the plurality of battery cells (10) are connected with the internal resistance monitoring structure so as to monitor the internal resistances of the plurality of battery cells (10) through the internal resistance monitoring structure.
9. The submerged, liquid-cooled battery system of any of claims 1 to 8, wherein the immersion liquid is made of trimethyl phosphate.
10. An explosion-proof method for an immersed liquid-cooled battery system, applied to the immersed liquid-cooled battery system according to any one of claims 1 to 9, comprising:
acquiring working parameters of a plurality of electric cores, and comparing the working parameters of the electric cores with preset parameters;
determining the battery cells to be exploded according to the comparison result of the working parameters of the battery cells and the preset parameters;
the position condition of the battery cell to be exploded is obtained, the movement of the scratching structure is controlled according to the position condition of the battery cell to be exploded, and the scratching structure is controlled to scratch the explosion-proof valve of the battery cell to be exploded, so that the immersion liquid enters the battery cell to be exploded through the scratching opening of the explosion-proof valve.
11. The explosion-proof method of an immersed liquid-cooled battery system according to claim 10, wherein determining the battery cell to be exploded according to a comparison result of the working parameters of the plurality of battery cells and the preset parameters comprises:
and when the voltage abrupt change value of the battery cell is larger than a preset voltage value or when the internal resistance abrupt change value of the battery cell is larger than a preset internal resistance value, judging the battery cell as the battery cell to be exploded.
12. The explosion-proof method of an immersed liquid-cooled battery system according to claim 10, wherein determining the battery cell to be exploded according to a comparison result of the working parameters of the plurality of battery cells and the preset parameters comprises:
and judging the battery cell as the battery cell to be exploded when the voltage abrupt change value of the battery cell is larger than 0.1V/S or when the internal resistance abrupt change value of the battery cell is larger than 1mΩ.
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Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009238644A (en) * | 2008-03-27 | 2009-10-15 | Sanyo Electric Co Ltd | Power source device for vehicle |
| KR20190021579A (en) * | 2017-08-23 | 2019-03-06 | 현대모비스 주식회사 | Apparatus for protecting submersion of battery system |
| KR102225889B1 (en) * | 2020-07-15 | 2021-03-11 | 한국에너지기술연구원 | Battery apparatus and system for management of battery temperature |
| JP3232945U (en) * | 2021-03-10 | 2021-07-15 | 東莞蒲微防水透気膜材料有限公司Ｄｏｎｇｇｕａｎ Ｐｕｗｅｉ Ｗａｔｅｒｐｒｏｏｆ ａｎｄ Ｂｒｅａｔｈａｂｌｅ Ｍｅｍｂｒａｎｅ Ｍａｔｅｒｉａｌ Ｃｏ．， Ｌｔｄ． | Explosion-proof valve core, explosion-proof valve, box airtightness inspection jig |
| CN114006103A (en) * | 2021-11-02 | 2022-02-01 | 上海兰钧新能源科技有限公司 | Immersed liquid cooling battery system |
| WO2022056722A1 (en) * | 2020-09-16 | 2022-03-24 | 华为数字能源技术有限公司 | Battery cell, battery pack, system, and electric vehicle |
| CN219226501U (en) * | 2023-03-27 | 2023-06-20 | 楚能新能源股份有限公司 | Battery structure capable of flame retarding and fire extinguishing |
| CN116492621A (en) * | 2023-05-08 | 2023-07-28 | 楚能新能源股份有限公司 | Elastic compaction self-piercing fire-fighting module |
| CN116526058A (en) * | 2023-06-29 | 2023-08-01 | 楚能新能源股份有限公司 | Battery explosion-proof valve, battery plug box and electric equipment |
| CN116780034A (en) * | 2023-08-09 | 2023-09-19 | 中科开创（广州）智能科技发展有限公司 | Full-immersion non-circulating flow liquid-cooled battery energy storage thermal management system |
-
2023
- 2023-11-27 CN CN202311590918.1A patent/CN117293433B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009238644A (en) * | 2008-03-27 | 2009-10-15 | Sanyo Electric Co Ltd | Power source device for vehicle |
| KR20190021579A (en) * | 2017-08-23 | 2019-03-06 | 현대모비스 주식회사 | Apparatus for protecting submersion of battery system |
| KR102225889B1 (en) * | 2020-07-15 | 2021-03-11 | 한국에너지기술연구원 | Battery apparatus and system for management of battery temperature |
| WO2022056722A1 (en) * | 2020-09-16 | 2022-03-24 | 华为数字能源技术有限公司 | Battery cell, battery pack, system, and electric vehicle |
| JP3232945U (en) * | 2021-03-10 | 2021-07-15 | 東莞蒲微防水透気膜材料有限公司Ｄｏｎｇｇｕａｎ Ｐｕｗｅｉ Ｗａｔｅｒｐｒｏｏｆ ａｎｄ Ｂｒｅａｔｈａｂｌｅ Ｍｅｍｂｒａｎｅ Ｍａｔｅｒｉａｌ Ｃｏ．， Ｌｔｄ． | Explosion-proof valve core, explosion-proof valve, box airtightness inspection jig |
| CN114006103A (en) * | 2021-11-02 | 2022-02-01 | 上海兰钧新能源科技有限公司 | Immersed liquid cooling battery system |
| CN219226501U (en) * | 2023-03-27 | 2023-06-20 | 楚能新能源股份有限公司 | Battery structure capable of flame retarding and fire extinguishing |
| CN116492621A (en) * | 2023-05-08 | 2023-07-28 | 楚能新能源股份有限公司 | Elastic compaction self-piercing fire-fighting module |
| CN116526058A (en) * | 2023-06-29 | 2023-08-01 | 楚能新能源股份有限公司 | Battery explosion-proof valve, battery plug box and electric equipment |
| CN116780034A (en) * | 2023-08-09 | 2023-09-19 | 中科开创（广州）智能科技发展有限公司 | Full-immersion non-circulating flow liquid-cooled battery energy storage thermal management system |
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|---|---|
| CN117293433B (en) | 2024-03-26 |
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