CN222422060U - Liquid cooling plate assembly, battery pack and power consumption device - Google Patents
Liquid cooling plate assembly, battery pack and power consumption device Download PDFInfo
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- CN222422060U CN222422060U CN202323508683.5U CN202323508683U CN222422060U CN 222422060 U CN222422060 U CN 222422060U CN 202323508683 U CN202323508683 U CN 202323508683U CN 222422060 U CN222422060 U CN 222422060U
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- 239000007788 liquid Substances 0.000 title claims abstract description 329
- 238000001816 cooling Methods 0.000 title claims abstract description 148
- 238000010992 reflux Methods 0.000 claims description 19
- 238000005192 partition Methods 0.000 claims description 6
- 239000000110 cooling liquid Substances 0.000 abstract description 30
- 230000002035 prolonged effect Effects 0.000 abstract description 3
- 239000002826 coolant Substances 0.000 description 6
- 239000012530 fluid Substances 0.000 description 4
- 238000011144 upstream manufacturing Methods 0.000 description 4
- 239000000853 adhesive Substances 0.000 description 3
- 230000001070 adhesive effect Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 238000004146 energy storage Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 230000007704 transition Effects 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 230000020169 heat generation Effects 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
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- 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
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Abstract
The invention relates to a liquid cooling plate assembly, a battery pack and an electric device, wherein the liquid cooling plate assembly comprises at least two liquid cooling plates, the liquid cooling plates extend along a first direction and are arranged at intervals in a second direction, each liquid cooling plate comprises a liquid inlet channel and a liquid return channel, the liquid inlet channel and the liquid return channel of one liquid cooling plate and the liquid inlet channel and the liquid return channel of the other liquid cooling plate in two adjacent liquid cooling plates are arranged in a staggered manner in a third direction, and the first direction, the second direction and the third direction are mutually perpendicular. The liquid cooling plate assembly avoids the condition that the temperature of the cooling liquid on one side (above) of the battery cell positioned between two adjacent liquid cooling plates in the third direction is generally higher than/lower than that of the cooling liquid on the other side (below), and improves the temperature uniformity, so that the service life of the battery cell is prolonged.
Description
Technical Field
The disclosure relates to the technical field of battery cooling, in particular to a liquid cooling plate assembly, a battery pack and an electric device.
Background
In recent years, the new energy automobile industry is rapidly developed, and the battery is taken as the most important part of the electric automobile and occupies a higher production cost proportion. The continuous progress of battery technology has led to higher and higher power and energy densities, but at the same time to higher and higher amounts of heat generation. Therefore, battery heat dissipation systems including liquid cooling plates and the like are also required to meet higher demands.
In the related art, a liquid cooling plate assembly for cooling a battery comprises a plurality of harmonica pipes and current collectors arranged at two ends of the harmonica pipes, and the harmonica pipes are communicated through connecting pipes, so that cooling of a plurality of battery cores is realized.
Disclosure of utility model
The purpose of this disclosure is to provide a liquid cooling board subassembly, battery package and power consumption device, and this liquid cooling board subassembly has avoided the condition that one side (top) coolant liquid temperature of third direction appears in the electric core that is located between two adjacent liquid cooling boards generally is higher than/is less than opposite side (below) coolant liquid temperature, has promoted the homogeneity of temperature to the life of extension electric core.
To achieve the above object, a first aspect of the present disclosure provides a liquid cooling plate assembly, including:
the liquid cooling plates are at least two and extend along the first direction and are arranged at intervals in the second direction, and each liquid cooling plate comprises a liquid inlet channel and a liquid return channel;
In the two adjacent liquid cooling plates, the liquid inlet flow channel and the liquid return flow channel of one liquid cooling plate are staggered with the liquid inlet flow channel and the liquid return flow channel of the other liquid cooling plate in a third direction;
Wherein the first direction, the second direction and the third direction are perpendicular to each other.
Optionally, the liquid cooling plate assembly further comprises a current collector with a liquid inlet cavity and a liquid return cavity, and a reflux body with a reflux cavity, wherein the current collector and the reflux body are respectively connected with a first end and an opposite second end of the liquid cooling plate;
The liquid inlet channel is respectively communicated with the liquid inlet cavity and the backflow cavity, and the liquid return channel is respectively communicated with the liquid return cavity and the backflow cavity.
Optionally, the liquid cooling plate assembly further comprises a transfer tube;
The transfer pipe is used for connecting the liquid inlet cavity of two adjacent current collectors and the liquid return cavity of two adjacent current collectors.
Optionally, the liquid inlet cavity and the liquid return cavity of the current collector connected to each liquid cooling plate respectively correspond to the liquid inlet channel and the liquid return channel of the liquid cooling plate in the third direction.
Optionally, the liquid inlet channel comprises a plurality of liquid inlet sub-channels which are arranged at intervals along the third direction and respectively communicated with the liquid inlet cavity and the backflow cavity, and/or
The liquid return channel comprises a plurality of liquid return sub-channels which are arranged at intervals along the third direction and are respectively communicated with the liquid return cavity and the liquid return cavity.
Optionally, a partition part recessed towards the liquid cooling plate is formed between the liquid inlet cavity and the liquid return cavity.
Optionally, the current collector is formed with two first interfaces communicated with the liquid inlet cavity, and the two first interfaces are respectively positioned at two opposite sides of the current collector in the second direction;
The current collector is formed with two second interfaces communicated with the liquid return cavity, and the two second interfaces are positioned on two opposite sides of the current collector in the second direction.
Optionally, in the same current collector, the axes of the two first interfaces are coincident, and the axes of the two second interfaces are coincident;
And the axes of the first interface and the second interface are staggered at least in the first direction.
Optionally, the axis of the first interface of one current collector is staggered with the axis of the first interface of the other current collector in the third direction, and the axis of the second interface of one current collector is staggered with the axis of the second interface of the other current collector in the third direction.
Optionally, in the two adjacent current collectors, the first interface of one current collector is communicated with the first interface of the other current collector through a transfer pipe;
In the two adjacent current collectors, the second interface of one current collector is communicated with the second interface of the other current collector through a switching tube.
Optionally, the transfer pipe comprises a first connecting section, a second connecting section and a third connecting section which are sequentially connected, wherein the second connecting section extends along a third direction;
The first connecting section and the third connecting section are respectively used for connecting opposite first interfaces of two adjacent current collectors and opposite second interfaces of the two adjacent current collectors.
Optionally, the adapter tube is generally Z-shaped.
In a second aspect of the disclosure, a battery pack is provided, where the battery pack includes an electric core and the liquid cooling plate assembly described above;
The battery cell is arranged between two adjacent liquid cooling plates.
In a third aspect of the present disclosure, there is also provided an electric device including the battery pack described above.
Through above-mentioned technical scheme, the liquid cooling board subassembly of this disclosure promptly, including two at least liquid cooling boards that extend along the first direction and follow second direction interval arrangement, wherein, the liquid cooling board includes inlet channel and the back flow runner at third direction interval arrangement, because in two adjacent liquid cooling boards, inlet channel and back flow runner are in the staggered arrangement of third direction, the cross flow of coolant liquid in two adjacent liquid cooling boards has avoided the condition that one side (top) coolant liquid temperature of third direction is generally higher than/is less than the condition of opposite side (below) coolant liquid temperature to lie in the electric core between two adjacent liquid cooling boards, the homogeneity of temperature has been promoted, thereby the life of extension electric core.
Additional features and advantages of the present disclosure will be set forth in the detailed description which follows.
Drawings
The accompanying drawings are included to provide a further understanding of the disclosure, and are incorporated in and constitute a part of this specification, illustrate the disclosure and together with the description serve to explain, but do not limit the disclosure. In the drawings:
Fig. 1 is a partially disassembled view of a liquid cooled plate assembly provided in some embodiments of the present disclosure, wherein a cell is illustrated.
Fig. 2 is a block diagram of a liquid cooled plate assembly provided in some embodiments of the present disclosure.
Fig. 3 is a connection structure diagram of a liquid cooling plate, a current collector, and a current return of a liquid cooling plate assembly according to some embodiments of the present disclosure.
Fig. 4 is a cross-sectional view illustrating connection between a liquid cooling plate and a current collector, and a current return of a liquid cooling plate assembly according to some embodiments of the present disclosure.
Fig. 5 is a schematic illustration of partial coolant flow of a liquid cooled plate assembly provided in some embodiments of the present disclosure.
Fig. 6 is a partially exploded view of a liquid cooled plate assembly according to some embodiments of the present disclosure, wherein a back adhesive is schematically shown.
Description of the reference numerals
10-Liquid cooling plate assembly, 100-liquid cooling plate, 110-current collector, 111-liquid inlet cavity, 1111-first interface, 112-liquid return cavity, 1121-second interface, 113-partition, 1001-liquid inlet runner, 1001 a-liquid inlet sub runner, 1002-liquid return runner, 1002 a-liquid return sub runner, 120-liquid return, 121-liquid return cavity, 130-transfer pipe;
20-cell and 30-back glue.
Detailed Description
Specific embodiments of the present disclosure are described in detail below with reference to the accompanying drawings. It should be understood that the detailed description and specific examples, while indicating and illustrating the disclosure, are not intended to limit the disclosure.
In this disclosure, unless otherwise indicated, terms of orientation such as "upper, lower, left, right" and "upper, lower, left, right" are used generally with respect to the figures, to "inner, outer" are used to refer to the inner and outer of the contour of the corresponding component, and to "distal, proximal" are used to refer to the relative structure or relative component away from or toward another structure or component. In the drawings of the present disclosure, X represents a first direction, Y represents a second direction, and Z represents a third direction. In addition, the terms "first," "second," and the like, as used in this disclosure, are used to distinguish one element from another element without sequence or importance. Furthermore, in the following description, when referring to the drawings, the same reference numerals in different drawings denote the same or similar elements unless otherwise explained. The foregoing definitions are provided for the purpose of illustrating and explaining the present disclosure and should not be construed as limiting the present disclosure.
The purpose of the present disclosure is to provide a liquid cooling plate assembly 10, a battery pack and an electric device, so as to avoid the situation that the temperature of the cooling liquid on one side (above) of the battery cell 20 located between two adjacent liquid cooling plates 100 is generally higher/lower than that on the other side (below), and improve the uniformity of the temperature, thereby prolonging the service life of the battery cell 20.
In order to achieve the above object, as shown in fig. 1 to 6, an embodiment of the present disclosure provides a liquid cooling plate assembly 10, the liquid cooling plate assembly 10 includes at least two liquid cooling plates 100, the liquid cooling plates 100 extend along a first direction and are arranged at intervals in a second direction, the liquid cooling plates 100 include a liquid inlet channel 1001 and a liquid return channel 1002, the liquid inlet channel 1001 and the liquid return channel 1002 of one liquid cooling plate 100 are staggered with the liquid inlet channel 1001 and the liquid return channel 1002 of the other liquid cooling plate 100 in a third direction, wherein the first direction, the second direction and the third direction are mutually perpendicular.
Through the arrangement, the liquid cooling plate assembly 10 disclosed by the disclosure comprises at least two liquid cooling plates 100 extending along a first direction and arranged at intervals along a second direction, wherein the liquid cooling plates 100 comprise a liquid inlet channel 1001 and a liquid return channel 1002 which are arranged at intervals along a third direction, and because the liquid inlet channel 1001 and the liquid return channel 1002 in the two adjacent liquid cooling plates 100 are arranged in a staggered manner along the third direction, the cross flow of cooling liquid in the two adjacent liquid cooling plates 100 is avoided, the condition that the temperature of the cooling liquid on one side (upper) of the battery cell 20 positioned between the two adjacent liquid cooling plates 100 in the third direction is generally higher than/lower than that on the other side (lower) is avoided, the uniformity of the temperature is improved, and the service life of the battery cell 20 is prolonged.
In some embodiments, the liquid cooling plate assembly 10 comprises at least two liquid cooling plates 100, wherein the two liquid cooling plates 100 extend along a first direction and are arranged at intervals in a second direction, each liquid cooling plate 100 comprises a liquid inlet channel 1001 and a liquid return channel 1002 which are arranged at intervals in a third direction (the width direction of the liquid cooling plate 100), the liquid cooling plate assembly 10 further comprises a current collector 110 with a liquid inlet cavity 111 and a liquid return cavity 112 and a reflux body 120 with a reflux cavity 121, and the current collector 110 and the reflux body 120 are respectively connected to a first end and an opposite second end of the liquid cooling plate 100. That is, a first end of each liquid cooling plate 100 is connected to a current collector 110, and a second end of the liquid cooling plate 100 opposite to the first end is connected to a reflux body 120.
The intake runner 1001 communicates with the intake chamber 111 and the return chamber 121, respectively, and the return runner 1002 communicates with the return chamber 112 and the return chamber 121, respectively. The first end of the liquid inlet channel 1001 is communicated with the liquid inlet cavity 111 of the current collector 110, the second end of the liquid return channel 1002 is communicated with the liquid return cavity 121 of the current collector 110, and the second end of the liquid return channel 1002 is communicated with the liquid return cavity 112 of the current collector 120, so that cooling liquid flowing in from the liquid inlet cavity 111 flows into the liquid return cavity 112 after passing through the liquid inlet channel 1001, the liquid return cavity 121 and the liquid return channel 1002, and heat exchange with the battery cell 20 is realized.
In the adjacent two liquid cooling plates 100, the liquid inlet flow channels 1001 and the liquid return flow channels 1002 are staggered in a third direction, wherein the first direction, the second direction and the third direction are perpendicular to each other.
Through the arrangement, the liquid cooling plate assembly 10 disclosed by the disclosure comprises at least two liquid cooling plates 100 extending along a first direction and arranged at intervals along a second direction, and a current collector 110 and a reflux body 120 arranged at a second end of each liquid cooling plate 100, wherein the liquid cooling plates 100 comprise a liquid inlet channel 1001 and a liquid return channel 1002 which are arranged at intervals along a third direction, the first end of the liquid inlet channel 1001 is communicated with the liquid inlet cavity 111, the second end is communicated with the reflux cavity 121, the first end of the liquid return channel 1002 is communicated with the liquid return cavity 112, and the second end is communicated with the reflux cavity 121, so that the cooling liquid flowing in from the liquid inlet cavity 111 flows into the liquid return cavity 112 after passing through the liquid inlet channel 1001, the reflux cavity 121 and the liquid return channel 1002, and due to the cross flow of the cooling liquid in the adjacent two liquid cooling plates 100 in the third direction, the situation that the temperature of the cooling liquid on one side (above) of a battery cell 20 between the adjacent two liquid cooling plates 100 is generally higher than the temperature of the other side (above) is generally higher than the temperature of the battery cell 20 is improved, and the service life of the battery cell is prolonged.
It should be noted that, the current collectors 110 are all installed at the first end of the liquid cooling plate 100, and the current return bodies 120 are all installed at the second end of the liquid cooling plate 100, wherein the current collectors 110 are further formed with a first interface 1111 communicating with the liquid inlet cavity 111, and a second interface 1121 communicating with the liquid return cavity 112, for realizing inflow and outflow of the cooling liquid.
The second end of the liquid inlet channel 1001 and the second end of the liquid return channel 1002 are both communicated with the return cavity 121 of the return body 120, and the return body 120 is only used for realizing the diversion flow direction of the cooling liquid without providing a liquid inlet and a liquid outlet, so that the cooling liquid flows from the first end to the second end of the liquid cooling plate 100, and then flows back to the return cavity 112 at the first end after being diverted through the return body 120.
Through above-mentioned setting, the liquid cooling plate assembly 10 of this disclosure can all arrange the pipeline that is used for feed liquor and return liquid in same side (the first end of liquid cooling plate 100) for the reflux body 120 of opposite side (the second end of liquid cooling plate 100) can simplify, reduces the volume, thereby improves the space utilization in the whole battery package.
It can be appreciated that the liquid cooling plate assembly 10 may further include more than two liquid cooling plates 100 arranged at intervals in the second direction, where a first end of each liquid cooling plate 100 is connected with one current collector 110, a second end of each liquid cooling plate is connected with one current collector 120, and the liquid inlet cavities 111 of two adjacent current collectors 110 may be communicated through a connecting pipe, and the liquid return cavities 112 of two adjacent current collectors 110 may be communicated through a connecting pipe, so as to connect the plurality of liquid cooling plates 100, to realize circulation of cold liquid, and to cool or heat the electrical core 20 between the two liquid cooling plates 100.
Optionally, the liquid cooling plate assembly 10 further comprises a switching tube 130, wherein the switching tube 130 is used for connecting the liquid inlet cavities 111 of two adjacent current collectors 110 and the liquid return cavities 112 of two adjacent current collectors 110.
Each current collector 110 is provided with two first interfaces 1111 communicated with the liquid inlet cavity 111, wherein the two first interfaces 1111 are respectively located at two opposite sides of the current collector 110 in the second direction, one first interface 1111 is communicated with the first interface 1111 of the liquid inlet cavity 111 of the upstream current collector 110 through a transfer tube 130 and is used for receiving the cooling liquid of the upstream current collector 110, and the other first interface 1111 is communicated with the liquid inlet cavity 111 of the downstream current collector 110 through the transfer tube 130 and is used for conveying part of the cooling liquid flowing into the liquid inlet cavity 111 to the liquid inlet cavity 111 of the downstream current collector 110.
Meanwhile, each current collector 110 is further provided with two second interfaces 1121 communicated with the liquid return cavity 112, wherein the two second interfaces 1121 are respectively located at two opposite sides of the current collector 110 in the second direction, one second interface 1121 is communicated with the second interface 1121 of the liquid return cavity 112 of the upstream current collector 110 through the transfer tube 130 and is used for receiving cooling liquid of the upstream current collector 110, and the other first interface 1111 is communicated with the liquid return cavity 112 of the downstream current collector 110 through the transfer tube 130 and is used for conveying part of cooling liquid flowing into the liquid inlet cavity 111 and cooling liquid of the liquid return channel 1002 corresponding to the current collector 110 to the liquid return cavity 112 of the downstream current collector 110.
The two first interfaces 1111 and the two second interfaces 1121 on the current collector 110 may be configured in any suitable manner, in some embodiments, in the same current collector 110, the axes of the two first interfaces 1111 are coincident, and the axes of the two second interfaces 1121 are coincident, that is, in the same current collector 110, the two first interfaces 1111 and the two second interfaces 1121 are respectively located on two opposite sides of the current collector 110 in the second direction, and the central axes of the two first interfaces 1111 are coincident, and the central axes of the two second interfaces 1121 are coincident.
The axes of the first port 1111 and the second port 1121 are staggered at least in the first direction, that is, the positions of the first port 1111 and the second port 1121 in the first direction are different in the same current collector 110, so that connection arrangement of the switching tube 130 for satisfying the liquid inlet and the liquid outlet is facilitated.
In other embodiments, the axis of the first port 1111 of one current collector 110 is offset from the axis of the first port 1111 of the other current collector 110 in the third direction, and the axis of the second port 1121 of one current collector 110 is offset from the axis of the second port 1121 of the other current collector 110 in the third direction. Through the above arrangement, by arranging the first interface 1111 and the second interface 1121 to correspond to the same positions of the liquid inlet chamber 111 and the liquid return chamber 112 in the third direction, liquid inlet and liquid outlet are facilitated, and simultaneously, the manufacturing of the current collector 110 and the liquid cooling plate 100 is simplified, and the uniformity of heat exchange of the cell 20 between the two liquid cooling plates 100 can be further improved, corresponding to the liquid inlet channel 1001 and the liquid return channel 1002 in the liquid cooling plate 100.
As shown in fig. 5, the flow direction of the cooling liquid is shown by an arrow in the figure, wherein a solid line with an arrow represents cold flow (i.e., cooling liquid before heat exchange), and a broken line with an arrow represents hot flow (i.e., cooling liquid after heat exchange). As can be seen from the figure, the two adjacent current collectors 110 are arranged upside down (i.e. the liquid inlet cavities 111 and the liquid return cavities 112 in the two adjacent current collectors 110 are staggered in the third direction), and the liquid inlet channels 1001 and the liquid return channels 1002 in the corresponding liquid cooling plates 100 are also staggered in the third direction, so that it is ensured that the cold flow of one liquid cooling plate 100 flows from below and flows back from above (the cold flow is the hot flow after the cold flow is changed), and the cold flow of the other liquid cooling plate 100 flows back from below (the cold flow is the hot flow after the cold flow is changed). Because the battery cell 20 is disposed between two adjacent liquid cooling plates 100, such cross flow avoids the situation that the temperature of the cooling liquid above the battery cell 20 is generally higher/lower than that of the cooling liquid below the battery cell 20, and improves the uniformity of the temperature, thereby prolonging the service life of the battery cell 20.
In some embodiments, the first port 1111 of one current collector 110 and the first port 1111 of the other current collector 110 of two adjacent current collectors 110 are communicated through a transfer pipe 130, and the second port 1121 of one current collector 110 and the second port 1121 of the other current collector 110 of two adjacent current collectors 110 are communicated through a transfer pipe 130. It should be noted that the connection pipe and the adapter pipe 130 may be configured by any suitable structure, for example, a hose may be used.
To accommodate the first and second interfaces 1111 and 1121 that are staggered in both the first and third directions, in some embodiments, the adapter tube 130 includes a first connection section, a second connection section, and a third connection section that are sequentially connected, and the second connection section extends along the third direction, where the first and third connection sections are respectively used to connect the opposing first interfaces 1111 of two adjacent current collectors 110 and the opposing second interfaces 1121 of two adjacent current collectors 110.
For example, the transition tube may take the Z-shaped configuration shown in fig. 1 and 5, i.e., transition tube 130 may be generally Z-shaped, or may be approximately Z-shaped. It may include a second connection section extending along a third direction, and first and second connection sections disposed at opposite ends of the second connection section for connection with the first and second interfaces 1111 and 1121, and interfaces of the first and third connection sections can be in sealing connection with the first and second interfaces 1111 and 1121, and specific connection structure details may refer to related known technologies, for example, by providing a sealing ring or the like, which will not be described herein.
The current collectors 110 may be configured in any suitable structure, and in order to better achieve connection and correspondence with the liquid cooling plates 100, as shown in fig. 4, in some embodiments, the liquid inlet chamber 111 and the liquid return chamber 112 connected to the current collector 110 of each liquid cooling plate 100 correspond to the liquid inlet channel 1001 and the liquid return channel 1002 of the liquid cooling plate 100 in the third direction, respectively. Among the current collectors 110 corresponding to each liquid cooling plate 100, the liquid inlet cavity 111 of the current collector 110 corresponds to the position of the liquid inlet channel 1001 of the liquid cooling plate 100 in the third direction, and the liquid return cavity 112 of the current collector 110 corresponds to the position of the liquid return channel 1002 of the liquid cooling plate 100 in the third direction.
In order to facilitate the arrangement of the connecting tube, the portion of the current collector 110 forming the liquid inlet 111 and the portion forming the liquid return 112 may be arranged offset in the first direction, by which the connecting tube may be arranged extending in the second direction only by bending in the third direction.
In the related art, the current collector 110 is usually formed by welding the left and right parts after being buckled and spliced, which is complicated to process and is prone to risk of leakage of liquid.
In some embodiments, current collector 110 and/or the return fluid are integrally formed. The current collector 110 or the reflux body can be integrally formed, for example, can be integrally formed by machining, and the integrated current collector 110 and the reflux body have high precision and have no leakage risk in the structure.
In addition, the current collector 110 and the current return body may be integrally formed.
The inlet flow path 1001 and the return flow path 1002 may be configured in any suitable manner, as shown in fig. 4, and in some embodiments, the inlet flow path 1001 includes a plurality of inlet sub-flow paths 1001a spaced apart in the third direction and communicating with the inlet chamber 111 and the return chamber, respectively, and/or the return flow path 1002 includes a plurality of return sub-flow paths 1002a spaced apart in the third direction and communicating with the return chamber 112 and the return chamber, respectively.
The liquid inlet channel 1001 may include a plurality of liquid inlet sub-channels 1001a disposed at one side of the symmetry axis in the second direction and arranged at intervals, the plurality of liquid inlet sub-channels 1001a are respectively communicated with the liquid inlet cavity 111 of the corresponding current collector 110 of the liquid cooling plate 100 and the backflow cavity of the backflow fluid, the liquid return channel 1002 may include a plurality of liquid return sub-channels 1002a disposed at the other side of the symmetry axis in the second direction and arranged at intervals, and the plurality of liquid return sub-channels 1002a are respectively communicated with the liquid return cavity 112 of the corresponding current collector 110 of the liquid cooling plate 100 and the backflow cavity of the backflow fluid, so that the cooling liquid in the liquid inlet cavity 111 can respectively enter the backflow cavity through the plurality of liquid inlet sub-channels 1001a and flow back to the liquid return cavity 112 of the current collector 110 through the plurality of liquid return sub-channels 1002 a.
The cooling liquid for cooling the battery cell 20 enters the liquid inlet cavity 111, the cooling liquid after heat exchange flows back into the liquid return cavity 112, the temperature of the cooling liquid in the liquid inlet cavity 111 is lower than that of the cooling liquid in the liquid return cavity 112 under the condition of cooling the battery cell 20, and in order to reduce heat exchange between the cooling liquid in the liquid return cavity 112 and the cooling liquid in the liquid inlet cavity 111, a partition portion 113 recessed towards the direction of the liquid cooling plate 100 is formed between the liquid inlet cavity 111 and the liquid return cavity 112 in some embodiments as shown in fig. 4. The partition portion 113 may have any suitable structure, for example, along a direction away from the liquid cooling plate 100, the partition portion 113 may be configured as an open groove, so as to reduce a contact area between the liquid inlet cavity 111 and the liquid return cavity 112, reduce heat transfer amounts of the cooled liquid and the cooled liquid, and avoid affecting a cooling effect.
Embodiments of the present disclosure also provide a battery pack including the liquid cooling plate assembly 10 of the above-described embodiments, and thus, the battery pack also has all the advantages of the liquid cooling plate assembly 10.
Optionally, the battery pack further comprises a battery cell 20 arranged between two adjacent liquid cooling plates 100 of the liquid cooling assembly, and the battery cell 20 is adhered to the liquid cooling plates 100 through the back adhesive 30. The plurality of electric cells 20 disposed between two adjacent liquid cooling plates 100 may be arranged at intervals along the first direction, and two opposite sides (large surfaces of the electric cells 20) of the electric cells 20 in the second direction are respectively adhered to the side surfaces of the liquid cooling plates 100 in the second direction through the back adhesive 30, so as to be used for connecting and fixing the electric cells 20 and the liquid cooling plates 100.
The embodiment of the disclosure also provides an electricity consumption device, which includes the battery pack, so that the electricity consumption device also has the advantages of the battery pack, and the details are not repeated here.
The electric device may be a new energy vehicle, such as an electric vehicle or a hybrid vehicle. In addition, the power utilization device can also be other electric equipment using a battery pack, such as an electric energy storage device and the like.
It can be appreciated that the liquid cooling plate assembly 10, the battery pack and the electric device of the present disclosure may be used in the technical field of new energy automobiles, and may also be used in the technical field of energy storage and other fields requiring fluid to cool/heat a high temperature/low temperature object.
The liquid cooling plate assembly 10, battery pack and electric device of the present disclosure,
The liquid cooling plate assembly 10 arranges inlet pipes and outlet pipes for inflow and outflow of cooling liquid of the liquid cooling plate 100 on the same side (first end), so that a reflux body on the other side (second end) can be simplified, the volume is reduced, and the space utilization rate in the whole battery pack is improved.
The preferred embodiments of the present disclosure have been described in detail above with reference to the accompanying drawings, but the present disclosure is not limited to the specific details of the embodiments described above, and various simple modifications may be made to the technical solutions of the present disclosure within the scope of the technical concept of the present disclosure, and all the simple modifications belong to the protection scope of the present disclosure.
In addition, the specific features described in the above embodiments may be combined in any suitable manner without contradiction. The various possible combinations are not described further in this disclosure in order to avoid unnecessary repetition.
Moreover, any combination between the various embodiments of the present disclosure is possible as long as it does not depart from the spirit of the present disclosure, which should also be construed as the disclosure of the present disclosure.
Claims (14)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323508683.5U CN222422060U (en) | 2023-12-21 | 2023-12-21 | Liquid cooling plate assembly, battery pack and power consumption device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323508683.5U CN222422060U (en) | 2023-12-21 | 2023-12-21 | Liquid cooling plate assembly, battery pack and power consumption device |
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| Publication Number | Publication Date |
|---|---|
| CN222422060U true CN222422060U (en) | 2025-01-28 |
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|---|---|---|---|
| CN202323508683.5U Active CN222422060U (en) | 2023-12-21 | 2023-12-21 | Liquid cooling plate assembly, battery pack and power consumption device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN222422060U (en) |
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2023
- 2023-12-21 CN CN202323508683.5U patent/CN222422060U/en active Active
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