CN116995339A - Liquid cooling device and energy storage equipment - Google Patents
Liquid cooling device and energy storage equipment Download PDFInfo
- Publication number
- CN116995339A CN116995339A CN202311267616.0A CN202311267616A CN116995339A CN 116995339 A CN116995339 A CN 116995339A CN 202311267616 A CN202311267616 A CN 202311267616A CN 116995339 A CN116995339 A CN 116995339A
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- China
- Prior art keywords
- cooling
- liquid
- isolation
- cavity
- core
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- 238000001816 cooling Methods 0.000 title claims abstract description 191
- 239000007788 liquid Substances 0.000 title claims abstract description 114
- 238000004146 energy storage Methods 0.000 title claims abstract description 15
- 238000002955 isolation Methods 0.000 claims description 77
- 238000010586 diagram Methods 0.000 description 10
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 3
- 229910052744 lithium Inorganic materials 0.000 description 3
- 230000004308 accommodation Effects 0.000 description 2
- 239000004020 conductor Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000005192 partition Methods 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
- H01M10/60—Heating or cooling; Temperature control
- H01M10/61—Types of temperature control
- H01M10/613—Cooling or keeping cold
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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
- H01M10/60—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
-
- 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
- H01M10/6556—Solid parts with flow channel passages or pipes for heat exchange
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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
- H01M10/60—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
- H01M50/20—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
Abstract
The application discloses a liquid cooling device and energy storage equipment, the liquid cooling device includes: the support assembly is provided with a core cavity and a cooling cavity at intervals, at least one core cavity is arranged in the circumferential direction of the cooling cavity, the core cavities are arranged at intervals, the core cavities are used for accommodating the cores, the cores are not contacted, and heat conduction between the cores can be avoided. The cooling assembly comprises a cooling piece accommodated in the cooling cavity, and the cooling piece is in contact with the battery core surrounding the cooling assembly so as to absorb heat emitted by the battery core. The cooling piece is contacted with the battery core surrounding the battery core so as to absorb the heat of the battery core surrounding the battery core, so that the overhigh temperature of the battery core can be avoided, the thermal runaway of the battery core caused by overhigh temperature can be avoided, and the safety performance of the battery core can be improved.
Description
Technical Field
The embodiment of the application relates to the technical field of battery energy storage, in particular to a liquid cooling device and energy storage equipment.
Background
The lithium battery is widely applied as a green and environment-friendly new energy, the application field is continuously expanded, and related industries matched with the lithium battery are continuously developed and enlarged. The cylindrical lithium battery most commonly used at the present stage has higher cost, and in order to reduce the cost, the capacity of the battery module is generally designed to be smaller than the output power of a product, for example, the battery capacity is 100Wh, the output power of the product is 300W, and even higher output power. Therefore, the larger the output current of the battery cell is, the more the output current of the battery cell exceeds the upper limit of the output current of the battery cell, the battery cell can be accelerated to heat, and the service life of the battery module is directly influenced; the battery cell temperature is too high to cause short circuit in the battery cell, so that the battery module is in thermal runaway and even the battery cell explodes.
Disclosure of Invention
The embodiment of the application provides a liquid cooling device and energy storage equipment, and aims to solve the problem that a battery cell is easy to heat.
In order to solve the technical problems, the application adopts a technical scheme that: provided is a liquid cooling device including:
the support assembly is provided with a core cavity and a cooling cavity at intervals, at least one core cavity is arranged in the circumferential direction of the cooling cavity, the core cavities are mutually arranged at intervals, the core cavities are used for accommodating the cores, and the cores are not contacted;
the cooling assembly comprises a cooling piece accommodated in the cooling cavity, and the cooling piece is in contact with the battery core surrounding the cooling assembly so as to absorb heat emitted by the battery core.
Optionally, the cooling piece includes the liquid cooling post, the liquid cooling post is used for acceping the heat transfer medium, the heat transfer medium is used for absorbing the heat of electric core.
Optionally, the liquid cooling column is provided with a liquid flow perforation, and the liquid flow perforation is used for accommodating the heat exchange medium;
the cooling piece further comprises a cover plate and a pipe joint, wherein the cover plate is respectively arranged at two ends of the liquid cooling column, and the cover plate is connected with the liquid cooling column; the pipe joints are respectively penetrated through the corresponding cover plates and communicated with the liquid flowing perforations.
Optionally, the cooling assembly further comprises a liquid inlet pipe, a liquid outlet pipe and a serial pipe, wherein the serial pipe is connected with two adjacent pipe joints, so that at least two cooling pieces form a liquid path; the liquid inlet pipe is connected with the pipe joint positioned at the input end of the liquid path, and the liquid outlet pipe is connected with the pipe joint positioned at the output end of the liquid path.
Optionally, the support assembly includes first support, second support and isolation skeleton, first support with the second support encloses to form and holds the chamber, isolation skeleton accept in accept the intracavity, isolation skeleton will accept the chamber and separate into electric core chamber with the cooling chamber.
Optionally, the isolation framework comprises a first isolation part and a second isolation part, and the first isolation part is connected with the first bracket; the second isolation part is connected with the second support, the second isolation part is correspondingly arranged with the first isolation part, and the second isolation part and the corresponding first isolation part jointly define the electric core cavity or the cooling cavity.
Optionally, the second isolation portion is spaced from the corresponding first isolation portion to expose at least a portion of the battery cell or the cooling member.
Optionally, the plurality of electric cores are provided, one part of the electric cores are arranged along a first direction, and the other part of the electric cores are arranged along a second direction, and the first direction is opposite to the second direction;
the liquid cooling device further comprises a first conductive sheet and a second conductive sheet, the first conductive sheet is arranged at one end of the bracket assembly, the first conductive sheet comprises a first conductive part and a second conductive part, and the first conductive part is electrically connected with the positive electrode of each electric core arranged along the first direction; the second conductive part is positioned at one side of the first conductive part, and is arranged in an insulating way with the first conductive part, and is electrically connected with the negative electrode of each electric core arranged along the second direction;
the second conducting strip is arranged at the other end of the bracket component, the second conducting strip is electrically connected with the negative electrode of the battery cell arranged along the first direction, and the second conducting strip is also electrically connected with the positive electrode of the battery cell arranged along the second direction.
Optionally, the liquid cooling device further comprises a top cover and a bottom cover, wherein the top cover covers one end of the bracket assembly, the bottom cover covers the other end of the bracket assembly, and the top cover is connected with the bottom cover.
The application adopts another technical scheme that: there is provided an energy storage device comprising:
a battery cell;
the liquid cooling device as described above, wherein the battery cell is accommodated in the battery cell chamber.
The embodiment of the application has the beneficial effects that: in contrast to the prior art, the liquid cooling device comprises a bracket component and a cooling component, wherein the bracket component is provided with a core cavity and a cooling cavity, and the cooling cavity and the core cavity are arranged at intervals. At least one electric core cavity is arranged in the circumferential direction of each cooling cavity, and the electric core cavities are arranged at intervals, so that the electric core cavities surrounding the same cooling cavity are arranged at intervals, and the electric core cavities surrounding different cooling cavities are also arranged at intervals. The electric core cavity is used for accommodating the electric cores, the electric core cavities are arranged in one-to-one correspondence with the electric cores, the electric cores are not contacted, and heat conduction between the electric cores can be avoided. The cooling assembly comprises cooling pieces, the cooling pieces are accommodated in the cooling cavities, and the cooling pieces and the cooling cavities are arranged in one-to-one correspondence. The cooling piece is contacted with the battery core surrounding the battery core so as to absorb the heat of the battery core surrounding the battery core, so that the overhigh temperature of the battery core can be avoided, the thermal runaway of the battery core caused by overhigh temperature can be avoided, and the safety performance of the battery core can be improved.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. Like elements or portions are generally identified by like reference numerals throughout the several figures. In the drawings, elements or portions thereof are not necessarily drawn to scale.
FIG. 1 is a schematic diagram of an energy storage device according to an embodiment of the present application;
FIG. 2 is an exploded view of an energy storage device according to an embodiment of the present application;
FIG. 3 is a schematic diagram of a partial structure of a liquid cooling apparatus according to an embodiment of the present application;
FIG. 4 is an enlarged schematic view of portion A of FIG. 3;
FIG. 5 is a schematic diagram of a partial structure of a liquid cooling apparatus according to an embodiment of the present application;
FIG. 6 is an enlarged schematic view of portion B of FIG. 5;
FIG. 7 is a schematic diagram showing the positions of the battery cells and the cooling member according to an embodiment of the application;
FIG. 8 is a schematic diagram of the locations of the battery cells and the cooling element according to an embodiment of the application;
FIG. 9 is a schematic diagram of a cooling member of a liquid cooling apparatus according to an embodiment of the present application;
FIG. 10 is a schematic diagram of a liquid cooling column of a liquid cooling apparatus according to an embodiment of the present application;
FIG. 11 is a schematic diagram illustrating a flow direction of a heat exchange medium in a liquid cooling apparatus according to an embodiment of the present application;
FIG. 12 is a schematic diagram of the installation of an energy storage device in an embodiment of the present application;
fig. 13 is a schematic diagram of the installation of an energy storage device in an embodiment of the application.
Reference numerals illustrate:
100. a liquid cooling device; 1. a bracket assembly; 11. a first bracket; 111. a first perforation; 12. a second bracket; 13. isolating the framework; 131. a first isolation part; 132. a second isolation part; 14. a housing chamber; 141. a die cavity; 142. a cooling chamber; 2. a cooling assembly; 21. a cooling member; 211. a liquid cooling column; 2111. a liquid flow perforation; 212. a cover plate; 213. a pipe joint; 22. a series pipe; 23. a liquid inlet pipe; 24. a liquid outlet pipe; 3. a first conductive sheet; 31. a first conductive portion; 32. a second conductive portion; 4. a second conductive sheet; 5. a top cover; 6. a bottom cover; 200. a battery cell; 1000. an energy storage device.
Detailed Description
In order that the application may be readily understood, a more particular description thereof will be rendered by reference to specific embodiments that are illustrated in the appended drawings. It will be understood that when an element is referred to as being "fixed" to another element, it can be directly on the other element or one or more intervening elements may be present therebetween. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or one or more intervening elements may be present therebetween. The terms "vertical," "horizontal," "left," "right," and the like are used herein for illustrative purposes only.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used in the description of the application herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. The term "and/or" as used in this specification includes any and all combinations of one or more of the associated listed items.
Referring to fig. 1 and 2, the application provides a liquid cooling device 100, the liquid cooling device 100 includes a bracket assembly 1 and a cooling assembly 2, wherein the bracket assembly 1 is used for providing a mounting base for a battery cell 200 and the cooling assembly 2, the cooling assembly 2 is mounted on the bracket assembly 1, and the cooling assembly 2 is used for cooling the battery cell 200.
Referring to fig. 3 to 6, the holder assembly 1 is provided with a core chamber 141 and a cooling chamber 142, and the cooling chamber 142 and the core chamber 141 are spaced apart from each other. At least one of the cell cavities 141 is disposed in the circumferential direction of each of the cooling cavities 142, and the cell cavities 141 are disposed at intervals, so that the cell cavities 141 surrounding the same cooling cavity 142 are disposed at intervals, and the cell cavities 141 surrounding different cooling cavities 142 are also disposed at intervals. The electric core cavity 141 is used for accommodating the electric cores 200, the electric core cavities 141 are arranged in one-to-one correspondence with the electric cores 200, the electric cores 200 are not contacted, and heat conduction between the electric cores 200 can be avoided.
Referring to fig. 2, 7 and 8, the cooling assembly 2 includes cooling elements 21, the cooling elements 21 are accommodated in the cooling cavities 142, and the cooling elements 21 are disposed in one-to-one correspondence with the cooling cavities 142. The cooling member 21 contacts the battery cell 200 surrounding itself to absorb heat of the battery cell 200 surrounding itself, so that the temperature of the battery cell 200 can be prevented from being excessively high, thermal runaway of the battery cell 200 due to the excessively high temperature can be prevented, and the safety performance of the battery cell 200 can be improved.
It should be noted that, when the bracket assembly 1 is provided with a plurality of cooling chambers 142, any two adjacent cooling chambers 142 may be spaced apart from each other or may be in communication with each other, and correspondingly, any two adjacent cooling members 21 may be in contact with each other or may be disposed at intervals. In the present application, a plurality of cooling elements 21 are provided, and the cooling elements 21 are disposed at intervals.
Referring to fig. 2, in some embodiments, the bracket assembly 1 includes a first bracket 11, a second bracket 12, and an isolation armature 13. The first bracket 11 is substantially block-shaped, the second bracket 12 is substantially block-shaped, and the second bracket 12 is located on the opposite side of the first bracket 11. The second bracket 12 is connected with the first bracket 11 to jointly enclose a housing cavity 14. The isolation frame 13 is accommodated in the accommodation chamber 14, and the isolation frame 13 partitions the accommodation chamber 14 into the core chamber 141 and the cooling chamber 142.
Referring to fig. 3 to 6, in some embodiments, the isolation skeleton 13 includes a first isolation portion 131 and a second isolation portion 132. The first isolation portion 131 is substantially annular, and one axial end of the first isolation portion 131 is connected to the inner surface of the first bracket 11. The second isolation portions 132 are substantially annular, one axial end of each second isolation portion 132 is connected to the inner surface of the first bracket 11, and the second isolation portions 132 are disposed in one-to-one correspondence with the first isolation portions 131. The second isolation portion 132 and the corresponding first isolation portion 131 together define a core cavity 141, or the second isolation portion 132 and the corresponding first isolation portion 131 together define a cooling cavity 142.
The first isolation parts 131 are provided with a plurality of first isolation parts 131, and the first isolation parts 131 are connected with each other to improve the utilization rate of the accommodating cavity 14. The second isolation parts 132 are provided with a plurality of second isolation parts 132, and the second isolation parts 132 are connected with each other to improve the utilization rate of the accommodating cavity 14.
In other embodiments, the first isolation parts 131 are provided in plurality, and the first isolation parts 131 are spaced apart from each other. The second isolation parts 132 are provided in plurality, and the second isolation parts 132 are spaced apart from each other.
Referring to fig. 1, in some embodiments, the second isolation portion 132 is spaced apart from the corresponding first isolation portion 131 to expose at least a portion of the battery cell 200 or the cooling member 21.
For example, when a certain second isolation portion 132 and the corresponding first isolation portion 131 together define a battery cavity 141, and the second isolation portion 132 is not in contact with the corresponding first isolation portion 131, when the battery cell 200 is accommodated in the battery cavity 141, the second isolation portion 132 is sleeved at one end of the battery cell 200 in the length direction, and the first isolation portion 131 is sleeved at the other end of the battery cell 200 in the length direction, so that the battery cell 200 has a larger surface area to be exposed, contact between the battery cell 200 and the cooling member 21 can be facilitated, and contact heat exchange between the battery cell 200 and the cooling member 21 can be facilitated. Meanwhile, the second isolation portion 132 is spaced from the corresponding first isolation portion 131, so that excessive portions of the battery cell 200 wrapped by the second isolation portion 132 and the first isolation portion 131 can be avoided, and heat dissipation of the battery cell 200 is facilitated.
For example, when one of the second isolation portions 132 and the corresponding first isolation portion 131 together define a cooling cavity 142, and the second isolation portion 132 is not in contact with the corresponding first isolation portion 131, when the cooling member 21 is accommodated in the cooling cavity 142, the second isolation portion 132 is sleeved at one end of the cooling member 21 in the length direction, and the first isolation portion 131 is sleeved at the other end of the cooling member 21 in the length direction, so that the cooling member 21 has a larger surface area to be exposed, the cooling member 21 can be conveniently contacted with the battery cell 200, and the cooling member 21 can be contacted with the battery cell 200 for heat exchange.
Referring to fig. 2 and 8, for the above-mentioned cooling element 21, for convenience of description, an end of the cooling element 21 near the first isolation portion 131 is referred to as a top end, an end of the cooling element 21 near the second isolation portion 132 is referred to as a bottom end, and a diameter of the top end and a diameter of the bottom end of the cooling element 21 are substantially equal. Protrusions are provided between the top and bottom ends of the cooling member 21 such that the diameter of the middle portion of the cooling member 21 is greater than the diameters of the top and bottom ends, thereby facilitating the contact of the cooling member 21 with the battery cell 200.
Referring to fig. 9, in some embodiments, the cooling member 21 includes a liquid cooling column 211, the liquid cooling column 211 is substantially cylindrical, and the liquid cooling column 211 is a main body portion of the cooling member 21. The liquid cooling column 211 accommodates a heat exchange medium therein, and the heat exchange medium has good heat conduction performance so as to quickly absorb heat of the battery cell 200. Heat exchange media include, but are not limited to, water and oil.
Referring to fig. 10, in some embodiments, the liquid cooling column 211 is provided with liquid flow holes 2111, the liquid flow holes 2111 are disposed along the length direction of the liquid cooling column 211, and the length direction of the liquid cooling column 211 is parallel to the length direction of the battery cell 200, so that the contact area between the liquid cooling column 211 and the battery cell 200 is larger. The liquid flow perforations 2111 are for receiving a heat exchange medium.
Referring to fig. 9 again, the cooling member 21 further includes two cover plates 212 and two pipe connectors 213, the cover plates 212 are plate-shaped, the cover plates 212 are respectively disposed at two ends of the liquid cooling column 211 in the length direction, and the cover plates 212 are connected with the liquid cooling column 211 to close the two ends of the liquid cooling column 211 in the length direction, so as to prevent the heat exchange medium in the liquid flowing through holes 2111 from leaking. The pipe joint 213 is a joint for facilitating quick connection of pipes, and the pipe joint 213 is provided in one-to-one correspondence with the cover plate 212. One pipe joint 213 is provided penetrating one cover plate 212 and communicating with one end of the liquid flow perforation 2111, and the other pipe joint 213 is provided penetrating the other cover plate 212 and communicating with the other end of the liquid flow perforation 2111. Therefore, the heat exchange medium can be fed into or taken out of the liquid cooling column 211 through the pipe joint 213, and the heat exchange effect can be improved.
Referring to fig. 2 and 11, in some embodiments, the cooling assembly 2 further includes a liquid inlet tube 23, a liquid outlet tube 24, and a series tube 22. The series tube 22 is generally U-shaped, the series tube 22 being used to connect two adjacent liquid cooled tubes. The serial pipes 22 are provided at both ends in the longitudinal direction, respectively, and two pipe joints 213 connected to the same serial pipe 22 are provided at the same end of the two liquid cooling columns 211. Specifically, one end of one of the tandem pipes 22 is connected to a pipe joint 213 of the same end of one of the cooling members 21, and the other end of the tandem pipe 22 is connected to a pipe joint 213 of the same end of the other cooling member 21 to connect the two cooling members 21 in series. At least two cooling elements 21 may be connected in series to form one liquid path, in other words, one liquid path may be composed of two or three or more cooling elements 21. The liquid cooling device 100 may form one or two or more liquid paths, and the liquid paths may be independent (i.e. in parallel) or may be further connected.
The liquid inlet pipe 23 is connected with the pipe joint 213 of the cooling element 21 at the input end of the liquid path, so that the heat exchange medium can be continuously conveyed to the liquid path through the liquid inlet pipe 23, and the heat exchange effect can be improved. The liquid outlet pipe 24 is connected with a pipe joint 213 of the cooling element 21 at the output end of the liquid path to output the heat exchange medium after heat exchange.
Taking fig. 11 as an example, fig. 11 shows a liquid path, wherein the liquid path comprises four cooling elements 21 and three series pipes 22. Wherein any adjacent two cooling elements 21 are connected by one serial pipe 22, for example, two cooling elements 21 located at the left side are connected by one serial pipe 22, two cooling elements 21 located at the middle are connected by another serial pipe 22, and two cooling elements 21 located at the right side are connected by a third serial pipe 22, so that four cooling elements 21 are connected in series to form a liquid path. The liquid inlet pipe 23 is connected to the pipe joint 213 of the leftmost cooling element 21, and the liquid outlet pipe 24 is connected to the pipe joint 213 of the rightmost cooling element 21.
Referring to fig. 2, 12 and 13, the direction shown by the X-axis in fig. 2 is a first direction, and the direction shown by the Y-axis in fig. 2 is a second direction. In some embodiments, the plurality of battery cells 200 are provided, a portion of the battery cells 200 are disposed along the first direction, and the positive electrode of the battery cells 200 disposed along the first direction faces the first separator 131. The other part of the battery cells 200 are arranged along the second direction, the first direction is opposite to the second direction, and the negative electrode of the battery cell 200 arranged along the second direction faces the first isolation part 131.
The liquid cooling apparatus 100 further includes a first conductive sheet 3 and a second conductive sheet 4. The second conductive sheet 4 is substantially sheet-shaped, and the second conductive sheet 4 is made of a conductor. The second conductive sheet 4 is disposed at the other end of the bracket assembly 1, specifically, the second conductive sheet 4 is disposed corresponding to the second bracket 12, and the second conductive sheet 4 is located at a side of the second bracket 12 facing away from the first bracket 11. The second conductive sheet 4 is electrically connected to the negative electrode of the cell 200 disposed in the first direction, and the second conductive sheet 4 is also electrically connected to the positive electrode of the cell 200 disposed in the second direction.
The first conductive sheet 3 is substantially sheet-shaped, and the first conductive sheet 3 is made of a conductor. The first conductive sheet 3 is disposed at one end of the bracket assembly 1, specifically, the first conductive sheet 3 is disposed corresponding to the first bracket 11, and the first conductive sheet 3 is located at a side of the first bracket 11 facing away from the second bracket 12. The first conductive sheet 3 includes a first conductive portion 31 and a second conductive portion 32, the first conductive portion 31 being located at one side of the first holder 11, the first conductive portion 31 being electrically connected to the positive electrode of each of the cells 200 arranged in the first direction, and thus the cells 200 arranged in the first direction are connected in parallel to each other.
The second conductive part 32 is located at one side of the first bracket 11, the second conductive part 32 is located at one side of the first conductive part 31, and the second conductive part 32 is spaced from the first conductive part 31, so as to realize mutual insulation between the second conductive part 32 and the first conductive part 31. The second conductive portion 32 is electrically connected to the negative electrode of the battery cell 200 disposed in the second direction, and thus, the battery cells 200 disposed in the second direction are connected in parallel to each other, and the plurality of battery cells 200 disposed in the second direction and the plurality of battery cells 200 disposed in the first direction are connected in series to each other.
When the battery cell 200 is disposed in the liquid cooling device 100, the first conductive portion 31 serves as a positive electrode post, and the second conductive portion 32 serves as a negative electrode post.
Referring to fig. 3, the electrical connection between the first conductive portion 31 and the positive electrode of the battery cell 200 may be achieved by providing a plurality of first through holes 111 on the first bracket 11, where the first through holes 111 are disposed corresponding to the positive electrode of the battery cell 200 disposed along the first direction, so that the first conductive portion 31 can directly or indirectly contact with the positive electrode of the battery cell 200 disposed along the first direction. Similarly, the electrical connection of the second conductive part 32 with the negative electrode of the battery cell 200 may be achieved by a plurality of first through holes 111 provided on the first holder 11, and the second through holes are provided corresponding to the negative electrode of the battery cell 200 arranged in the second direction, so that the second conductive part 32 can directly or indirectly contact with the negative electrode of the battery cell 200 arranged in the second direction.
The second support 12 is provided with second through holes (not shown) which are provided corresponding to the negative electrodes of the cells 200 arranged in the first direction and the positive electrodes of the cells 200 arranged in the second direction, so that the second conductive sheet 4 can be electrically connected with the negative electrodes of the cells 200 arranged in the first direction and the positive electrodes of the cells 200 arranged in the second direction at the same time.
In other embodiments, the cells 200 may be arranged in the same direction, specifically, the positive electrode of each cell 200 faces the first support 11, or the negative electrode of each cell 200 faces the first support 11.
Referring to fig. 1 and 2, in some embodiments, the liquid cooling apparatus 100 further includes a top cover 5 and a bottom cover 6. The top cover 5 is approximately cover-shaped, and the top cover 5 covers one end of the bracket assembly 1. The bottom cover 6 is approximately cover-shaped, the bottom cover 6 covers the other end of the bracket assembly 1, and the top cover 5 is connected with the bottom cover 6. Therefore, the top cover 5 and the bottom cover 6 seal the battery cell 200 together, so that the battery cell 200 can be prevented from being affected by water vapor and other impurities, and the use safety of the battery cell 200 can be improved.
For the above-mentioned liquid inlet pipe 23, liquid outlet pipe 24 and serial pipe 22, since the liquid inlet pipe 23 and liquid outlet pipe 24 need to be connected with external pipes, the ends of the liquid inlet pipe 23 and liquid outlet pipe 24 penetrate the top cover 5 and/or the bottom cover 6. The series tube 22 is located between the bottom cover 6 and the top cover 5.
In summary, the liquid cooling apparatus 100 includes a bracket assembly 1 and a cooling assembly 2, where the bracket assembly 1 is provided with a core cavity 141 and a cooling cavity 142, and the cooling cavity 142 and the core cavity 141 are spaced apart from each other. At least one of the cell cavities 141 is disposed in the circumferential direction of each of the cooling cavities 142, and the cell cavities 141 are disposed at intervals, so that the cell cavities 141 surrounding the same cooling cavity 142 are disposed at intervals, and the cell cavities 141 surrounding different cooling cavities 142 are also disposed at intervals. The electric core cavity 141 is used for accommodating the electric cores 200, the electric core cavities 141 are arranged in one-to-one correspondence with the electric cores 200, the electric cores 200 are not contacted, and heat conduction between the electric cores 200 can be avoided. The cooling assembly 2 includes cooling elements 21, the cooling elements 21 are accommodated in the cooling cavities 142, and the cooling elements 21 are disposed in one-to-one correspondence with the cooling cavities 142. The cooling member 21 contacts the battery cell 200 surrounding itself to absorb heat of the battery cell 200 surrounding itself, so that the temperature of the battery cell 200 can be prevented from being excessively high, thermal runaway of the battery cell 200 due to the excessively high temperature can be prevented, and the safety performance of the battery cell 200 can be improved.
The application also provides an energy storage device 1000, wherein the energy storage device 1000 comprises the battery cell 200 and the liquid cooling device 100, and the battery cell 200 is accommodated in the battery cell cavity 141 of the liquid cooling device 100.
The specific structure and operation principle of the battery cell 200 can be referred to the related art. The specific structure of the liquid cooling apparatus 100 is referred to above, and the detailed description thereof will not be provided herein.
It should be noted that the description of the present application and the accompanying drawings illustrate preferred embodiments of the present application, but the present application may be embodied in many different forms and should not be construed as limited to the embodiments set forth herein, which are not to be construed as additional limitations of the application, but are provided for a more thorough understanding of the present application. The above-described features are further combined with each other to form various embodiments not listed above, and are considered to be the scope of the present application described in the specification; further, modifications and variations of the present application may be apparent to those skilled in the art in light of the foregoing teachings, and all such modifications and variations are intended to be included within the scope of this application as defined in the appended claims.
Claims (10)
1. A liquid cooling apparatus, comprising:
the support assembly is provided with a core cavity and a cooling cavity at intervals, at least one core cavity is arranged in the circumferential direction of the cooling cavity, the core cavities are mutually arranged at intervals, the core cavities are used for accommodating the cores, and the cores are not contacted;
the cooling assembly comprises a cooling piece accommodated in the cooling cavity, and the cooling piece is in contact with the battery core surrounding the cooling assembly so as to absorb heat emitted by the battery core.
2. The liquid cooling device of claim 1, wherein the cooling member comprises a liquid cooling column for receiving a heat exchange medium for absorbing heat from the electrical core.
3. The liquid cooling apparatus according to claim 2, wherein the liquid cooling column is provided with liquid flow perforations for accommodating the heat exchange medium;
the cooling piece further comprises a cover plate and a pipe joint, wherein the cover plate is respectively arranged at two ends of the liquid cooling column, and the cover plate is connected with the liquid cooling column; the pipe joints are respectively penetrated through the corresponding cover plates and communicated with the liquid flowing perforations.
4. The liquid cooling device according to claim 3, wherein the cooling assembly further comprises a liquid inlet pipe, a liquid outlet pipe and a serial pipe, wherein the serial pipe connects two adjacent pipe joints, so that at least two cooling pieces form a liquid path; the liquid inlet pipe is connected with the pipe joint positioned at the input end of the liquid path, and the liquid outlet pipe is connected with the pipe joint positioned at the output end of the liquid path.
5. The liquid cooling device according to claim 1, wherein the bracket assembly comprises a first bracket, a second bracket and an isolation framework, the first bracket and the second bracket enclose to form a containing cavity, the isolation framework is contained in the containing cavity, and the isolation framework separates the containing cavity into the electric core cavity and the cooling cavity.
6. The liquid cooling apparatus according to claim 5, wherein the isolation skeleton includes a first isolation portion and a second isolation portion, the first isolation portion being connected to the first bracket; the second isolation part is connected with the second support, the second isolation part is correspondingly arranged with the first isolation part, and the second isolation part and the corresponding first isolation part jointly define the electric core cavity or the cooling cavity.
7. The liquid cooling device according to claim 6, wherein the second isolation portion is spaced apart from the corresponding first isolation portion to expose at least a portion of the battery cell or the cooling member.
8. The liquid cooling device according to claim 1, wherein a plurality of the electric cells are provided, a part of the electric cells are arranged along a first direction, and another part of the electric cells are arranged along a second direction, and the first direction is opposite to the second direction;
the liquid cooling device further comprises a first conductive sheet and a second conductive sheet, the first conductive sheet is arranged at one end of the bracket assembly, the first conductive sheet comprises a first conductive part and a second conductive part, and the first conductive part is electrically connected with the positive electrode of each electric core arranged along the first direction; the second conductive part is positioned at one side of the first conductive part, and is arranged in an insulating way with the first conductive part, and is electrically connected with the negative electrode of each electric core arranged along the second direction;
the second conducting strip is arranged at the other end of the bracket component, the second conducting strip is electrically connected with the negative electrode of the battery cell arranged along the first direction, and the second conducting strip is also electrically connected with the positive electrode of the battery cell arranged along the second direction.
9. The liquid cooling apparatus of any one of claims 1-8, further comprising a top cover and a bottom cover, the top cover covering one end of the bracket assembly and the bottom cover covering the other end of the bracket assembly, the top cover and the bottom cover being connected.
10. An energy storage device, comprising:
a battery cell;
the liquid cooling apparatus according to any one of claims 1 to 9, wherein the battery cell is accommodated in the battery cell chamber.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311267616.0A CN116995339A (en) | 2023-09-28 | 2023-09-28 | Liquid cooling device and energy storage equipment |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202311267616.0A CN116995339A (en) | 2023-09-28 | 2023-09-28 | Liquid cooling device and energy storage equipment |
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| CN116995339A true CN116995339A (en) | 2023-11-03 |
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| CN202311267616.0A Pending CN116995339A (en) | 2023-09-28 | 2023-09-28 | Liquid cooling device and energy storage equipment |
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