CN215816029U - Cold drawing structure of battery module - Google Patents
Cold drawing structure of battery module Download PDFInfo
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- CN215816029U CN215816029U CN202121765189.5U CN202121765189U CN215816029U CN 215816029 U CN215816029 U CN 215816029U CN 202121765189 U CN202121765189 U CN 202121765189U CN 215816029 U CN215816029 U CN 215816029U
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- flow
- apron
- liquid
- battery module
- liquid cooling
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- 238000010622 cold drawing Methods 0.000 title description 7
- 239000007788 liquid Substances 0.000 claims abstract description 102
- 238000001816 cooling Methods 0.000 claims abstract description 68
- 239000002826 coolant Substances 0.000 claims abstract description 23
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 12
- 238000003756 stirring Methods 0.000 claims description 25
- 238000003466 welding Methods 0.000 claims description 3
- 238000009826 distribution Methods 0.000 abstract description 3
- 239000000110 cooling liquid Substances 0.000 description 23
- 230000009286 beneficial effect Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 230000002349 favourable effect Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 229910001416 lithium ion Inorganic materials 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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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 utility model relates to the technical field of batteries, and discloses a cold plate structure of a battery module, which comprises: the liquid cooling unit, the liquid cooling unit includes first apron and second apron, the sealed lid of second apron is located on the first apron, form the liquid cooling passageway between first apron and the second apron, the liquid cooling passageway is used for passing through the coolant liquid, be equipped with the water conservancy diversion piece in the liquid cooling passageway, the centre gripping of water conservancy diversion piece is between first apron and second apron, the liquid cooling passageway includes heat transfer portion and mass flow portion, mass flow portion communicates in the low reaches of heat transfer portion, mass flow portion sets up to the horn mouth shape, the opening direction of mass flow portion sets up with the flow direction of coolant liquid relatively, mass flow portion is used for converging the coolant liquid and leading. Through the structure, the cooling plate structure of the battery module is high in cooling efficiency, the highest temperature of the battery core is favorably reduced, the temperature distribution is uniform, and the temperature uniformity between the battery cores is favorably ensured.
Description
Technical Field
The utility model relates to the technical field of cooling equipment, in particular to a cold plate structure of a battery module.
Background
The safety of the electric automobile is directly influenced by the heat management strategy and the heat management loop design of the electric automobile, the optimal working temperature of the lithium ion battery is between 20 and 40 ℃, and the maximum temperature difference between the battery core and the battery core is less than 5 ℃. When the temperature range or the temperature difference range is exceeded, the cell capacity is prone to attenuation, and therefore the thermal management system has an important influence on the performance of the battery.
In the existing thermal management circuit, liquid-based cooling has become one of the most common cooling methods because of its high cooling efficiency, compactness and temperature uniformity compared with air cooling. In order to reduce the maximum temperature of the battery cell and maintain the temperature uniformity of the battery cell in the battery module, the heat transfer and dissipation capacity of the battery module is generally enhanced by optimizing the structure of the cold plate.
The cold board that uses commonly in present battery module is mostly the cold board of serpentine tube formula, and this kind of cold board is generally placed within battery module's main part, thereby intraductal circulation lets in coolant and reaches the effect that reduces electric core temperature. As shown in fig. 1, the serpentine tube type cold plate has the advantages of simple design and low cost, but in the battery module of the pure electric vehicle, the cooling efficiency is low, and the heat dissipation requirement of the battery module is still difficult to meet.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a cold plate structure of a battery module, which has high cooling efficiency, is beneficial to reducing the highest temperature of battery cores, has uniform temperature distribution and is beneficial to ensuring the temperature uniformity among the battery cores.
In order to achieve the purpose, the utility model adopts the following technical scheme:
a cold plate structure of a battery module, comprising: the liquid cooling unit, the liquid cooling unit includes first apron and second apron, the sealed lid of second apron is located on the first apron, first apron with form the liquid cooling passageway between the second apron, the liquid cooling passageway is used for passing through the coolant liquid, be equipped with the water conservancy diversion piece in the liquid cooling passageway, the centre gripping of water conservancy diversion piece in first apron with between the second apron, the liquid cooling passageway includes heat transfer portion and mass flow portion, mass flow portion communicate in the low reaches of heat transfer portion, mass flow portion sets up to the horn mouth shape, the opening direction of mass flow portion with the flow direction of coolant liquid sets up relatively, mass flow portion is used for right the coolant liquid converges and leads.
As a preferred scheme of the cold plate structure of the battery module, the flow guide block comprises a flow stirring block, the flow stirring block is arranged in the heat exchange part, and a circulation gap is arranged between the flow stirring block and the inner wall of the heat exchange part.
As a preferred scheme of a cold plate structure of a battery module, the stirring blocks are arranged in a plurality, the stirring blocks are distributed at intervals, and a circulation gap is formed between every two adjacent stirring blocks.
As a preferred scheme of the cold plate structure of the battery module, the width range of the flow stirring block is
The above-mentionedThe length of the flow-through gap is in the range
Wherein L1 is the width of liquid cooling channel, L2 is the length of liquid cooling channel.
As a preferable scheme of the cold plate structure of the battery module, the flow guide block further comprises a flow collecting block, the flow collecting block is arranged in the flow collecting portion, and a flow collecting gap is formed between the flow collecting block and the inner wall of the flow collecting portion.
As a preferable scheme of a cold plate structure of the battery module, a flow guide surface is arranged on the current collecting block, and the flow guide surface and the inner wall of the current collecting part are arranged in parallel at intervals to form the current collecting gap.
As an optimal scheme of a cold plate structure of the battery module, a liquid inlet interface and a liquid outlet interface are arranged on the liquid cooling channel, the liquid inlet interface is arranged on the heat exchanging part, and the liquid outlet interface is arranged on the flow collecting part.
As an optimal scheme of the cold plate structure of the battery module, the cold plate structure of the battery module further comprises a plurality of communicating pipelines, and the two ends of each communicating pipeline are respectively communicated with the liquid inlet interface and the liquid outlet interface of the two adjacent liquid cooling units.
As an optimal scheme of the cold plate structure of the battery module, the wall surfaces of the first cover plate and the second cover plate, which are close to the liquid cooling channel, are both provided with wavy surfaces.
As a preferred scheme of a cold plate structure of the battery module, two ends of the flow guide block are respectively connected to the first cover plate and the second cover plate by welding.
The utility model has the beneficial effects that:
the utility model provides a cold plate structure of a battery module, which comprises a liquid cooling unit, wherein the liquid cooling unit comprises a first cover plate and a second cover plate, the second cover plate is covered on the first cover plate, a liquid cooling channel for passing cooling liquid is formed between the first cover plate and the second cover plate, the liquid cooling channel is provided with a flow guide block clamped between the first cover plate and the second cover plate, the flow guide block can not only destroy the laminar flow of the cooling liquid in the liquid cooling channel and increase the convection of the cooling liquid, so that the temperature of the cooling liquid is uniform, but also increase the heat exchange areas of the first cover plate and the second cover plate with the cooling liquid, and further improve the heat exchange efficiency and the temperature uniformity of the cold plate structure of the battery module. The flow collecting portion in the liquid cooling channel is communicated with the downstream of the heat exchanging portion, the flow collecting portion is arranged in a horn shape, the opening direction of the flow collecting portion is opposite to the flowing direction of the cooling liquid, the flow collecting portion is used for collecting and guiding the cooling liquid, the cooling liquid introduced into the liquid cooling channel can flow and collect under the guiding of the flow collecting portion, and flowing resistance of the cooling liquid is reduced. Through the structure, the cooling efficiency of the cold plate structure of the battery module is high, the highest temperature of the battery core is favorably reduced, and the temperature distribution of the cold plate structure of the battery module is uniform, so that the temperature uniformity between the battery cores is favorably ensured.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings used in the description of the embodiments of the present invention will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the contents of the embodiments of the present invention and the drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a cold plate structure of a battery module according to an embodiment of the utility model.
In the figure:
1. a liquid cooling unit; 11. a liquid cooling channel; 111. a heat exchanging part; 112. a current collecting portion; 12. a flow guide block; 121. stirring the flow block; 122. a flow collection block; 13. a liquid inlet interface; 14. a liquid outlet interface; 15. a communicating pipeline; 100. a flow-through gap; 101. a current collecting gap.
Detailed Description
In order to make the technical problems solved, technical solutions adopted and technical effects achieved by the present invention clearer, the technical solutions of the embodiments of the present invention will be described in further detail below with reference to the accompanying drawings, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, unless expressly stated or limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, e.g., as meaning permanently connected, removably connected, or integral to one another; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.
The technical solution of the cold plate structure of the battery module provided by the present invention is further described by the following embodiments with reference to the accompanying drawings.
The embodiment provides a cold drawing structure of battery module, as shown in fig. 1, the cold drawing structure of this battery module includes liquid cooling unit 1, and liquid cooling unit 1 carries out heat exchange in order to reduce the temperature of electric core with the electric core of contact in arranging in the main part of battery module in, through the coolant liquid. In this embodiment, the liquid cooling unit 1 includes first apron (not shown in the figure) and second apron (not shown in the figure), first apron and second apron can laminate with electric core, the sealed lid of second apron is located on first apron, form liquid cooling passageway 11 between first apron and the second apron, liquid cooling passageway 11 is used for through the coolant liquid, the coolant liquid can carry out the heat exchange through first apron and second apron and electric core in liquid cooling passageway 11, realize the heat exchange of coolant liquid and electric core, reduce the temperature of electric core.
Preferably, the wall surfaces of the first cover plate and the second cover plate close to the liquid cooling channel 11 are both set to be wavy surfaces, and the wavy surfaces increase the wall surface area of the first cover plate and the second cover plate close to the liquid cooling channel 11, so that the heat exchange area of the first cover plate and the second cover plate and the cooling liquid is increased, and the heat exchange efficiency of the cold plate structure of the battery module is further improved. Specifically, first apron and second apron are corrosion resistant plate, are favorable to prolonging the life of first apron and second apron.
Preferably, be equipped with water conservancy diversion piece 12 in the liquid cooling passageway 11, water conservancy diversion piece 12 centre gripping is between first apron and second apron, the both ends of water conservancy diversion piece 12 are connected respectively on first apron and second apron, the laminar flow of coolant liquid in the liquid cooling passageway 11 not only can be destroyed to water conservancy diversion piece 12, increase the convection current of coolant liquid, make the temperature of coolant liquid even, local high temperature or low excessively has been avoided, and water conservancy diversion piece 12 has still increased the heat transfer area of first apron and second apron and coolant liquid, the heat exchange efficiency of the cold drawing structure of this battery module has further been improved, therefore water conservancy diversion piece 12 has not only improved the heat exchange efficiency of the cold drawing structure of this battery module, also be favorable to guaranteeing the temperature homogeneity between the electric core.
In this embodiment, the two ends of the flow guide block 12 are connected to the first cover plate and the second cover plate by welding, so that the flow guide block 12 is firmly connected to the first cover plate and the second cover plate, and the heat transfer efficiency between the flow guide block 12 and the first cover plate and the second cover plate is high. Preferably, the baffle block 12 is provided with a cavity (not shown), which can reduce the mass of the baffle block 12 and help reduce the weight of the cold plate structure of the battery module.
Specifically, the liquid cooling channel 11 includes a heat exchanging portion 111 and a current collecting portion 112, the current collecting portion 112 communicates with the downstream of the heat exchanging portion 111, the current collecting portion 112 is in a bell-mouth shape, the opening direction of the bell-mouth shape is opposite to the flowing direction of the cooling liquid, so that the flowing cooling liquid can enter the current collecting portion 112, the current collecting portion 112 is used for converging and guiding the cooling liquid, the cooling liquid introduced into the liquid cooling channel 11 can flow and collect under the guiding of the current collecting portion 112, and the flowing resistance of the cooling liquid is reduced.
In this embodiment, the flow guiding block 12 includes a flow stirring block 121, the flow stirring block 121 is disposed in the heat exchanging portion 111, a flow passage gap 100 is disposed between the flow stirring block 121 and the inner wall of the heat exchanging portion 111, and the cooling liquid can smoothly flow through the flow passage gap 100. Preferably, the plurality of stirring blocks 121 are arranged, the plurality of stirring blocks 121 are distributed at intervals, a circulation gap 100 is formed between two adjacent stirring blocks 121, the cooling liquid can smoothly flow through the circulation gap 100, and the cooling liquid flowing through the circulation gap 100 can exchange heat with the first cover plate, the second cover plate and the stirring blocks 121.
Further, the width of the stirring block 121 ranges from
The length of the flow-through gap 100 ranges from
Wherein L1 is the width of liquid cooling passageway 11, and L2 is the length of liquid cooling passageway 11, and the laminar flow of coolant liquid in liquid cooling passageway 11 can effectively be destroyed to the stirring piece 121 of this size scope, increases the convection current of coolant liquid, makes the temperature of coolant liquid even. Specifically, the width of the stirring block 121 in the present embodiment is
The length of the flow-through gap 100 is
The size of the turbulence block 121 can increase the convection of the cooling liquid, so that the temperature of the cooling liquid is uniform, and the over-high manufacturing cost of the cold plate structure of the battery module can be avoided.
Preferably, the flow guide block 12 further includes a flow collecting block 122, the flow collecting block 122 is disposed in the flow collecting portion 112, and a flow collecting gap 101 is provided between the flow collecting block 122 and an inner wall of the flow collecting portion 112, and the coolant can smoothly flow through the flow collecting gap 101. Furthermore, the flow collecting block 122 is provided with a flow guiding surface, the flow guiding surface is parallel to the inner wall of the flow collecting part 112 at an interval to form a flow collecting gap 101, and the flow collecting gap 101 can guide the flow direction of the cooling liquid.
In this embodiment, the liquid cooling channel 11 is provided with a liquid inlet port 13 and a liquid outlet port 14, the liquid inlet port 13 is disposed on the heat exchanging portion 111, the liquid outlet port 14 is disposed on the collecting portion 112, the liquid inlet port 13 is used for receiving the cooling liquid, and the liquid outlet port 14 is used for flowing out the cooling liquid. The cold drawing structure of battery module still includes communicating pipe way 15, and liquid cooling unit 1 is equipped with a plurality ofly, and communicating pipe way 15's both ends communicate respectively in the inlet liquid interface 13 and the play liquid interface 14 of two adjacent liquid cooling units 1 to communicate a plurality of liquid cooling units 1 in proper order, make the coolant liquid can flow through each liquid cooling unit 1 in proper order.
It should be understood that the above-described embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Numerous obvious variations, adaptations and substitutions will occur to those skilled in the art without departing from the scope of the utility model. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.
It is noted that reference throughout this specification to "some embodiments," "other embodiments," or the like, means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
Claims (10)
1. A cold plate structure of a battery module, comprising:
liquid cooling unit (1), liquid cooling unit (1) includes first apron and second apron, the sealed lid of second apron is located on the first apron, first apron with form liquid cooling passageway (11) between the second apron, liquid cooling passageway (11) are used for through the coolant liquid, be equipped with water conservancy diversion piece (12) in liquid cooling passageway (11), water conservancy diversion piece (12) centre gripping in first apron with between the second apron, liquid cooling passageway (11) are including heat transfer portion (111) and collecting portion (112), collecting portion (112) communicate in the low reaches of heat transfer portion (111), collecting portion (112) set up to the horn mouth shape, the opening direction of collecting portion (112) with the flow direction of coolant liquid sets up relatively, collecting portion (112) are used for right the coolant liquid converges and leads.
2. The cold plate structure of the battery module according to claim 1, wherein the flow guiding block (12) comprises a flow stirring block (121), the flow stirring block (121) is disposed in the heat exchanging part (111), and a flow gap (100) is disposed between the flow stirring block (121) and an inner wall of the heat exchanging part (111).
3. The cold plate structure of the battery module according to claim 2, wherein the plurality of the stirring blocks (121) are arranged, the plurality of the stirring blocks (121) are distributed at intervals, and a flow gap (100) is formed between two adjacent stirring blocks (121).
4. The cold plate structure of the battery module according to claim 3, wherein the width of the stirring block (121) ranges from
The length range of the flow-through gap (100) is
Wherein L1 is the width of the liquid cooling channel (11), and L2 is the length of the liquid cooling channel (11).
5. The cold plate structure of the battery module according to claim 2, wherein the flow guiding block (12) further comprises a flow collecting block (122), the flow collecting block (122) is arranged in the flow collecting portion (112), and a flow collecting gap (101) is provided between the flow collecting block (122) and an inner wall of the flow collecting portion (112).
6. The cold plate structure of the battery module according to claim 5, wherein the current collecting block (122) is provided with a flow guiding surface, and the flow guiding surface is parallel to and spaced apart from the inner wall of the current collecting part (112) to form the current collecting gap (101).
7. The cold plate structure of the battery module according to claim 1, wherein the liquid cooling channel (11) is provided with a liquid inlet (13) and a liquid outlet (14), the liquid inlet (13) is disposed on the heat exchanging portion (111), and the liquid outlet (14) is disposed on the current collecting portion (112).
8. The cold plate structure of the battery module according to claim 7, wherein the cold plate structure of the battery module further comprises a plurality of communication pipes (15), and the liquid cooling units (1) are provided, and two ends of each communication pipe (15) are respectively communicated with the liquid inlet (13) and the liquid outlet (14) of two adjacent liquid cooling units (1).
9. The cold plate structure of the battery module according to claim 1, wherein the wall surfaces of the first cover plate and the second cover plate close to the liquid cooling channel (11) are both provided with wavy surfaces.
10. The cold plate structure of the battery module according to claim 1, wherein both ends of the flow guide block (12) are connected to the first cover plate and the second cover plate by welding, respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121765189.5U CN215816029U (en) | 2021-07-30 | 2021-07-30 | Cold drawing structure of battery module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121765189.5U CN215816029U (en) | 2021-07-30 | 2021-07-30 | Cold drawing structure of battery module |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215816029U true CN215816029U (en) | 2022-02-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121765189.5U Active CN215816029U (en) | 2021-07-30 | 2021-07-30 | Cold drawing structure of battery module |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215816029U (en) |
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2021
- 2021-07-30 CN CN202121765189.5U patent/CN215816029U/en active Active
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