CN219419175U - Liquid cooling plate device for cooling battery, corresponding battery cell module and battery device - Google Patents
Liquid cooling plate device for cooling battery, corresponding battery cell module and battery device Download PDFInfo
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- CN219419175U CN219419175U CN202320298818.0U CN202320298818U CN219419175U CN 219419175 U CN219419175 U CN 219419175U CN 202320298818 U CN202320298818 U CN 202320298818U CN 219419175 U CN219419175 U CN 219419175U
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- 239000007788 liquid Substances 0.000 title claims abstract description 240
- 238000001816 cooling Methods 0.000 title claims abstract description 231
- 238000005452 bending Methods 0.000 claims abstract description 10
- 239000000110 cooling liquid Substances 0.000 claims description 30
- 238000000034 method Methods 0.000 abstract description 6
- 230000017525 heat dissipation Effects 0.000 description 12
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 10
- 238000013461 design Methods 0.000 description 8
- 238000010586 diagram Methods 0.000 description 8
- 230000000694 effects Effects 0.000 description 7
- 238000012986 modification Methods 0.000 description 4
- 230000004048 modification Effects 0.000 description 4
- 238000003466 welding Methods 0.000 description 4
- 239000002826 coolant Substances 0.000 description 3
- 230000001965 increasing effect Effects 0.000 description 3
- 238000007789 sealing Methods 0.000 description 3
- 238000010521 absorption reaction Methods 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000002708 enhancing effect Effects 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 239000003292 glue Substances 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 229910000679 solder Inorganic materials 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 230000007306 turnover Effects 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 provides a liquid cooling plate device for cooling a battery, which comprises a liquid cooling plate, wherein the liquid cooling plate comprises a liquid cooling plate first part, a liquid cooling plate second part and a connecting part. The first part of the liquid cooling plate and the second part of the liquid cooling plate are oppositely arranged in parallel, the first part of the liquid cooling plate and the second part of the liquid cooling plate are formed by integrally bending, the connecting part is a bending part between the first part of the liquid cooling plate and the second part of the liquid cooling plate, and cavity runner structures are respectively arranged in the first part of the liquid cooling plate and the second part of the liquid cooling plate. The connecting portion includes first connecting portion and second connecting portion, and first connecting portion and second connecting portion are the hollow structure that is linked together with the cavity runner structure of liquid cooling board first portion and liquid cooling board second portion simultaneously, and first connecting portion is equipped with the inlet, and second connecting portion is equipped with the liquid outlet. The utility model also provides a battery cell module using the liquid cooling plate device and a battery device using a plurality of battery cell modules, and the assembly process of the battery module is reasonably optimized.
Description
Technical Field
The present utility model relates to a battery technology, and more particularly, to a liquid cooling plate for cooling a battery, a battery cell module using the same, and a battery device.
Background
Along with the wide popularization and application of electric automobiles, the battery pack technology is continuously improved, and the requirements on the stability, the safety, the applicability and the like of a battery pack system are continuously improved. Particularly, the battery pack system has higher and higher requirements on the aspects of intelligent management, temperature control, energy density and the like of the battery pack system so as to meet the requirements of the battery pack system on development of high energy, high energy density, quick charge, integration, high environmental suitability and the like. The heat generated by the battery cell is released efficiently and reliably during fast charge or high-power discharge, so that the reliable and stable working environment of the battery system is ensured to have important effects of improving the system performance and prolonging the service life. On the other hand, the battery pack system is designed in a lightweight way, so that the energy density is improved; the processing and assembling process is reasonably optimized, the overall performance is improved, and each function is ensured to be realized stably and reliably.
The cooling modes of the batteries of the electric automobile are various, wherein the liquid cooling modes account for the vast majority; the liquid cooling heat dissipation mode of the battery pack needs to realize heat exchange between the battery pack and cooling liquid by means of a liquid cooling plate; the design of the liquid cooling plate, particularly the design of the flow channel, is the key of balancing the temperature of the battery pack core. In the extrusion forming aluminum profile liquid cooling plate at present, because the runner of the liquid cooling plate is linear, the water inlet connector and the water outlet connector are respectively arranged at two ends or two sides, the positions of the water inlet connector and the water outlet connector cannot be placed to be adjacent like a stamping and filling solder welding forming liquid cooling plate, the temperature of the water inlet connector and the temperature of the water outlet connector cannot be neutralized, the temperature difference between cooling liquid of the water inlet connector and cooling liquid of the water outlet connector is reduced, the temperature difference between modules cannot be further balanced, and the battery liquid cooling system also needs to provide independent liquid inlet and outlet channels for each liquid cooling plate. Therefore, the battery pack system is required to effectively improve the energy density on the basis of being as light as possible, fully dissipate heat through the liquid cooling plate and ensure the structural stability of the battery cell.
Disclosure of Invention
In view of the above-mentioned drawbacks of the prior art, the present utility model is directed to a liquid cooling plate device for cooling a battery, a corresponding battery cell module and a battery device, which are used for solving the problem that in the prior art, a plurality of battery cells are low in heat dissipation efficiency due to a liquid cooling plate structure, and by providing each battery cell with a corresponding liquid cooling plate contact surface for heat dissipation, the number of inlet and outlet openings of a battery liquid cooling system pipeline is reduced, and the problem that the whole structure of the battery is easy to deform due to charge and discharge expansion of the battery cells is also solved.
To achieve the above and other related objects, the present utility model provides a liquid cooling plate apparatus for cooling a battery, comprising:
the liquid cooling plate comprises a liquid cooling plate first part, a liquid cooling plate second part and a connecting part; wherein,,
the first part of the liquid cooling plate and the second part of the liquid cooling plate are oppositely arranged in parallel;
the liquid cooling plate first part and the liquid cooling plate second part are formed by integrally bending, the connecting part is a bending part between the liquid cooling plate first part and the liquid cooling plate second part, and cavity runner structures are respectively arranged in the liquid cooling plate first part and the liquid cooling plate second part;
the connecting portion comprises a first connecting portion and a second connecting portion, a first connecting flow passage communicated with the cavity flow passage structure of the first portion of the liquid cooling plate is arranged in the first connecting portion, a second connecting flow passage communicated with the cavity flow passage structure of the second portion of the liquid cooling plate is arranged in the second connecting portion, a liquid inlet communicated with the first connecting flow passage is formed in the first connecting portion, and a liquid outlet communicated with the second connecting flow passage is formed in the second connecting portion.
In one embodiment of the present utility model, the liquid cooling plate first portion includes a first plate, a second plate disposed symmetrically to the first plate, and a first cavity flow passage formed between the first plate and the second plate; the liquid cooling plate second portion includes a third plate, a fourth plate disposed symmetrically with the third plate, and a second cavity flow passage formed between the third plate and the fourth plate.
In an embodiment of the present utility model, a plurality of bump structures are uniformly distributed on the first cavity flow channel and the second cavity flow channel, and the bump structures are protruded towards the first cavity flow channel and the second cavity flow channel.
In an embodiment of the present utility model, the first cavity flow channel and the second cavity flow channel are both U-shaped hollow structures; the cavity flow channel structure comprises the first cavity flow channel and the second cavity flow channel.
In an embodiment of the utility model, the first connecting portion of the connecting portion includes a first curved wall, a second curved wall disposed symmetrically opposite to the first curved wall, and the first connecting flow passage disposed in the first curved wall and the second curved wall.
In an embodiment of the present utility model, the second connecting portion of the connecting portion includes a third curved wall, a fourth curved wall symmetrically disposed opposite to the third curved wall, and the second connecting flow passage disposed in the third curved wall and the fourth curved wall.
The utility model also provides a battery cell module, comprising: a liquid cooling plate as described above;
and, the first, second, third and fourth cell blocks;
the first electric core block and the second electric core block clamp the first part of the liquid cooling plate, and the third electric core block is stacked on one side, far away from the first part of the liquid cooling plate, of the second electric core block; the liquid cooling plate second part is located one side of the third electric core block far away from the second electric core block, and the fourth electric core block and the third electric core block clamp the liquid cooling plate second part therebetween.
In an embodiment of the present utility model, the liquid cooling plate includes a liquid cooling plate first portion, a liquid cooling plate second portion, and a connecting portion connecting the liquid cooling plate first portion and the liquid cooling plate second portion, and the cooling liquid flows into and out of the first cavity flow channel of the liquid cooling plate first portion and the second cavity flow channel of the liquid cooling plate second portion through the first connecting portion and the second connecting portion of the liquid cooling plate, respectively.
In an embodiment of the utility model, the first cell block, the second cell block, the third cell block and the fourth cell block comprise at least one cell.
The utility model also provides a battery device comprising at least one cell module as described above.
As described above, the liquid cooling plate device for cooling a battery, the corresponding battery cell module and the battery device of the present utility model have the following beneficial effects:
through double-deck liquid cooling plate structure design, solved among the prior art the unable surperficial refrigerated problem to 4 layers of electric core module simultaneously of individual layer liquid cooling plate. The cooling liquid inlet and outlet of the multi-layer liquid cooling plate is solved through the single inlet and outlet, so that the cooling liquid can fully absorb heat during circulation, and the problem of power consumption increase caused by continuous opening of an external circulation system is solved. Meanwhile, the double-layer liquid cooling plate can effectively absorb the problem of deformation of the battery cell structure caused by charge-discharge expansion of the battery cell.
Drawings
Fig. 1 is a schematic structural diagram of a double-layer liquid cooling plate according to the present utility model.
Fig. 2 is a schematic diagram of the working principle of the structure of the cooling plate with the protruding points for enhancing cooling in the cavity flow channel structure.
Fig. 3 is a schematic perspective view of a battery module according to a preferred embodiment of the utility model.
Fig. 4 is a cross-sectional view taken along the line indicated by the A-A section in fig. 3.
Fig. 5 is a schematic diagram of the cell module of fig. 4 in a state in which the cell module expands to resist compression and the liquid cooling plate is deformed to absorb energy.
Fig. 6 is a schematic structural diagram of a cell module composed of 8 cells according to another preferred embodiment of the present utility model.
Description of element reference numerals
The liquid cooling plate 1, the liquid cooling plate first part 11, the first plate 111, the second plate 112, the liquid cooling plate second part 12, the second plate connecting part 13, the first connecting part 131, the second connecting part 132, the hollow structure 14, the cavity flow channel structure 15, the first cavity flow channel 151, the second cavity flow channel 152, the liquid inlet 16, the liquid outlet 17, the bump structure 18 and the sealing part 19;
first cell block 21, cell one 211, cell two 212, second cell block 22, cell three 221, cell four 222, third cell block 23, cell five 231, cell six 232, fourth cell block 24, cell seven 241, cell eight 242.
Detailed Description
Other advantages and effects of the present utility model will become apparent to those skilled in the art from the following disclosure, which describes the embodiments of the present utility model with reference to specific examples. The utility model may be practiced or carried out in other embodiments that depart from the specific details, and the details of the present description may be modified or varied from the spirit and scope of the present utility model. It should be noted that the following embodiments and features in the embodiments may be combined with each other without conflict. It is also to be understood that the terminology used in the examples of the utility model is for the purpose of describing particular embodiments only, and is not intended to limit the scope of the utility model. The test methods in the following examples, in which specific conditions are not noted, are generally conducted under conventional conditions or under conditions recommended by the respective manufacturers.
Please refer to fig. 1 to 6. It should be understood that the structures, proportions, sizes, etc. shown in the drawings are for illustration purposes only and should not be construed as limiting the utility model to the extent that it can be practiced, since modifications, changes in the proportions, or otherwise, used in the practice of the utility model, are not intended to be critical to the essential characteristics of the utility model, but are intended to fall within the spirit and scope of the utility model. Also, the terms such as "upper," "lower," "left," "right," "middle," and "a" and the like recited in the present specification are merely for descriptive purposes and are not intended to limit the scope of the utility model, but are intended to provide relative positional changes or modifications without materially altering the technical context in which the utility model may be practiced.
Referring to fig. 1, the present utility model provides a liquid cooling plate device for cooling a battery, which includes a liquid cooling plate 1. The liquid cooling plate 1 specifically includes a liquid cooling plate first portion 11, a liquid cooling plate second portion 12, and a connection portion 13. Wherein the liquid-cooled plate first portion 11 and the liquid-cooled plate second portion 12 are disposed in opposite parallel, and may have the same or different structures. The liquid cooling plate first portion 11 and the liquid cooling plate second portion 12 are formed by integrally bending, the connecting portion 13 is a bending portion between the liquid cooling plate first portion 11 and the liquid cooling plate second portion 12, and cavity flow channel structures 15 are respectively arranged in the liquid cooling plate first portion 11 and the liquid cooling plate second portion 12. The connecting part 13 comprises a first connecting part 131 and a second connecting part 132, wherein a first connecting runner communicated with the cavity runner structure 15 of the first part 11 of the liquid cooling plate is arranged in the first connecting part 131, a second connecting runner communicated with the cavity runner structure 15 of the second part 12 of the liquid cooling plate is arranged in the second connecting part 132, the first connecting part 131 is provided with a liquid inlet 16 communicated with the first connecting runner, and the second connecting part 132 is provided with a liquid outlet 17 communicated with the second connecting runner.
As shown in fig. 1, the cavity flow channel structure 15 includes a first cavity flow channel 151 and a second cavity flow channel 152. The liquid-cooled plate first portion 11 includes a first plate 111, a second plate 112 arranged symmetrically to the first plate 111, and a first cavity flow channel 151 formed between the first plate 111 and the second plate 112. The liquid-cooled plate second portion 12 includes a third plate 121, a fourth plate 122 disposed symmetrically to the third plate 121, and a second cavity flow passage 152 formed between the third plate 121 and the fourth plate 122. The cavity flow channel structure 15 includes a first cavity flow channel 151 and a second cavity flow channel 152, and both the first cavity flow channel 151 and the second cavity flow channel 152 may adopt a U-shaped hollow structure by designing a cooling circuit in a liquid cooling plate and filling a cooling liquid. The cooling liquid flows into the first cavity flow channel 151 provided in the first portion 11 of the liquid cooling plate and the second cavity flow channel 152 provided in the second portion 12 of the liquid cooling plate through the liquid inlet 16 provided in the first connecting portion 131 of the connecting portion 13, and the cooling liquid may be water or another suitable cooling agent. The liquid inlet 16 is used for communicating the liquid cooling plate 1 with an external coolant management system, and is used for circulating the coolant of the first cavity runner 151 and the second cavity runner 152 of the liquid cooling plate 1, and flows out through the liquid outlet 17, so that heat of the battery cell module contacted with the liquid cooling plate 1 is conducted out, and the effect of heat dissipation of the battery cell is realized. The first connecting portion 131 and the second connecting portion 132 of the liquid inlet 16 and the liquid outlet 17 and the connecting portion 13 may be welded, or may be connected in other suitable manners. The first connecting portion 131 of the connecting portion 13 includes a first curved wall, a second curved wall symmetrically disposed opposite to the first curved wall, and a first connecting channel disposed in the first curved wall and the second curved wall, and a liquid inlet 16 is fixedly disposed on the first connecting channel; the second connecting portion 132 includes a third curved wall, a fourth curved wall symmetrically disposed opposite to the third curved wall, and a second connecting channel disposed in the third curved wall and the fourth curved wall, and the second connecting channel is fixedly provided with a liquid outlet 17. The first curved wall and the third curved wall are symmetrically and relatively fixed on the first portion 11 of the liquid cooling plate, and the second curved wall and the fourth curved wall are symmetrically and relatively fixed on the second portion 12 of the liquid cooling plate, so that the first portion 11 of the liquid cooling plate and the second portion 12 of the liquid cooling plate are respectively communicated with the liquid inlet 16 and the liquid outlet 17.
Fig. 2 is a schematic diagram of the working principle of the cooling plate according to the present utility model, in which a bump structure for enhancing cooling is provided in the cavity flow channel structure. A plurality of bump structures 18 are uniformly or unevenly distributed on the first cavity flow channel 151 and the second cavity flow channel 152, and the bump structures 18 are respectively protruded toward the first cavity flow channel 151 and the second cavity flow channel 152. After the cooling liquid flows into the cavity flow channel structure 15 from the liquid inlet 16, the flow velocity is reduced at the position around the bump structure 18. The design of the bump structure 18 makes the flow velocity of the cooling liquid slow down when the cooling liquid forms resistance vortex when encountering the bump structure 18 when circulating in the cavity flow channel structure 15, and the time of the cooling liquid absorbing heat in the cavity flow channel structure 15 increases, so that the heat dissipation effect of the liquid cooling plate 1 is enhanced.
In the embodiment shown in fig. 3, the present utility model further provides a battery cell module, which includes the liquid cooling plate 1, the first battery cell block 21, the second battery cell block 22, the third battery cell block 23, and the fourth battery cell block 24. Wherein the first electric core block 21 and the second electric core block 22 clamp the liquid cooling plate first part 11 of the liquid cooling plate 1 therebetween, and the third electric core block 23 is stacked on one side of the second electric core block 22 away from the liquid cooling plate first part 11; the liquid-cooled plate second portion 12 is located on a side of the third cell block 23 remote from the second cell block 22, and the fourth cell block 24 and the third cell block 23 sandwich the liquid-cooled plate second portion 12 therebetween.
Fig. 3 is a schematic structural diagram of a battery module according to the present utility model, where the liquid cooling plate 1 includes a liquid cooling plate first portion 11, a liquid cooling plate second portion 12, and a connection portion 13 connecting the liquid cooling plate first portion 11 and the liquid cooling plate second portion 12. The cooling liquid flows into and out of the first cavity flow channel 151 of the first portion 11 of the liquid cooling plate and the second cavity flow channel 152 of the second portion 12 of the liquid cooling plate through the first connecting portion 131 and the second connecting portion 132 of the connecting portion 13 of the liquid cooling plate 1, respectively, and when the charge and discharge of the battery cell module connected to one side of the first portion 11 of the liquid cooling plate or the second portion 12 of the liquid cooling plate generates more heat, the amount of the liquid inlet of the cavity flow channel structure 15 on the side with higher inflow temperature of the cooling liquid increases according to the fluid mechanics principle. Because of the relationship between temperature and flow rate, when the temperature of one side of the liquid cooling plate first part 11 or the liquid cooling plate second part 12 becomes higher, the radial movement of fluid particles is more severe, and the more severe the collision among the particles is, the faster the energy exchange is necessarily caused, so that the flow rate is high at the place with high temperature.
In a preferred embodiment of the present utility model, referring to fig. 1 and 3. The liquid-cooling plate first portion 11, the liquid-cooling plate second portion 12, and the connection portion 13 of the liquid-cooling plate 1 may be integrally formed using a press welding process. And stamping the two sections with the same shape through a die to form a T-shaped hollow shape. The two sections after stamping are bent in opposite directions to form a U-shaped structure and combined into a double-layer three-dimensional structure, and then the peripheral sealing part 19 at the edge of the double-layer three-dimensional structure is melted at high temperature and resolidified into a complete whole, so that the liquid cooling plate 1 is a sealed double-layer liquid cooling plate structure, and the hollow shape inside the double-layer liquid cooling plate structure is combined into a cavity runner structure 15 through sealing. When the cell module arranged on the liquid cooling plate 1 works and expands, the energy is absorbed through the hollow structural deformation of the first cavity flow channel 151 and the second cavity flow channel 152 in the liquid cooling plate first part 11 and the liquid cooling plate second part 12, so that the whole cell module cannot deform, and the stability of the cell module is affected. And only one group of liquid inlets 16 and liquid outlets 17 are arranged on the double-layer liquid cooling plate, so that the number of pipelines of a cooling system in the battery pack or the battery module is reduced.
Fig. 4 and fig. 5 are schematic structural diagrams of the cell module of the present utility model when the cell module expands to resist compression and the liquid cooling plate absorbs energy by deforming. As shown in fig. 3, the first, second, third and fourth cell blocks 21, 22, 23 and 24 include at least one cell thereon. The first electric core block 21 and the second electric core block 22 clamp the liquid cooling plate first part 11 of the liquid cooling plate 1 therebetween, and the third electric core block 23 is stacked on one side of the second electric core block 22 away from the liquid cooling plate first part 11; the liquid-cooled plate second portion 12 is located on a side of the third cell block 23 remote from the second cell block 22, and the fourth cell block 24 and the third cell block 23 sandwich the liquid-cooled plate second portion 12 therebetween. The first portion 11 of the liquid cooling plate and the second portion 12 of the liquid cooling plate are respectively provided with a cavity flow channel structure 15, wherein the first portion 11 of the liquid cooling plate is provided with a first cavity flow channel 151, the second portion 12 of the liquid cooling plate is provided with a second cavity flow channel 152, and the first cavity flow channel 151 and the second cavity flow channel 152 respectively realize the heat dissipation of the first electric core block 21, the second electric core block 22, the third electric core block 23 and the fourth electric core block 24 which are contacted with the first cavity flow channel 151 and the second cavity flow channel 152. Referring to fig. 4, when any one or more of the first, second, third and fourth battery cell blocks 21, 22, 23 and 24 are expanded by heat release due to charge and discharge, the first and second cavity flow channels 151 and 152 on the first and second parts 11 and 12 of the liquid cooling plate connected with the first and second battery cell blocks are deformed and energy absorbed, so that the overall battery cell block maintains a stable structure without affecting the stability of the overall battery module or battery pack.
Fig. 6 is a schematic diagram showing a cell module composed of 8 cells according to another preferred embodiment of the present utility model. Referring to fig. 1, the first cell block 21 includes a first cell 211 and a second cell 212, the second cell block 22 includes a third cell 221 and a fourth cell 222, the third cell block 23 includes a fifth cell 231 and a sixth cell 232, and the fourth cell block 24 includes a seventh cell 241 and an eighth cell 242. The first battery cell 211, the second battery cell 212, the third battery cell 221, the fourth battery cell 222, the fifth battery cell 231, the sixth battery cell 232, the seventh battery cell 241 and the eighth battery cell 242 are electrically connected with each other through heat conducting glue, and the battery cells are connected with the liquid cooling plate 1 through heat conducting glue. The liquid-cooling plate 1 specifically includes a liquid-cooling plate first portion 11, a liquid-cooling plate second portion 12, and a connection portion 13. The liquid cooling plate first portion 11 and the liquid cooling plate second portion 12 are oppositely arranged in parallel, the liquid cooling plate first portion 11 and the liquid cooling plate second portion 12 are formed by integrally bending, the connecting portion 13 is a bending portion between the liquid cooling plate first portion 11 and the liquid cooling plate second portion 12, and cavity runner structures 15 are respectively arranged in the liquid cooling plate first portion 11 and the liquid cooling plate second portion 12. The connecting part 13 comprises a first connecting part 131 and a second connecting part 132, wherein a first connecting runner communicated with the cavity runner structure 15 of the first part 11 of the liquid cooling plate is arranged in the first connecting part 131, a second connecting runner communicated with the cavity runner structure 15 of the second part 12 of the liquid cooling plate is arranged in the second connecting part 132, the first connecting part 131 is provided with a liquid inlet 16 communicated with the first connecting runner, and the second connecting part 132 is provided with a liquid outlet 17 communicated with the second connecting runner. The liquid inlet 16 and the liquid outlet 17 of the liquid cooling plate 1 are respectively connected with a battery cooling system of the vehicle. A plurality of bump structures 18 are uniformly distributed on the first cavity flow channel 151 and the second cavity flow channel 152, and the bump structures 18 are protruded towards the directions of the first cavity flow channel 151 and the second cavity flow channel 152. The cooling liquid flows through the salient point structures 18 of the cavity flow channel structures 15 from the liquid inlet 16 to slow down the flow rate of the cooling liquid. The design of the bump structure 18 makes the flow velocity of the cooling liquid slow down when the cooling liquid forms resistance vortex when encountering the bump structure 18 when circulating in the cavity flow channel structure 15, and the time of the cooling liquid absorbing heat in the cavity flow channel structure 15 increases, so that the heat dissipation effect of the liquid cooling plate 1 is enhanced. At the same time, the first cavity flow channel 151 and the second cavity flow channel 152 on the first part 11 and the second part 12 of the liquid cooling plate realize deformation energy absorption and collapse, so that the whole cell module keeps a stable structure.
The utility model also provides a battery device comprising at least one cell module shown in fig. 3. The battery cell module can comprise at least two liquid cooling parts (namely liquid cooling plates), a first connecting part and a second connecting part on the connecting part shared by the liquid cooling parts are internally provided with a first connecting runner communicated with the cavity runner structure of each liquid cooling plate part, and a second connecting runner communicated with the cavity runner structure of each liquid cooling part is internally provided with a second connecting runner. The first connecting part is provided with a liquid inlet communicated with the first connecting flow channel, and the second connecting part is provided with a liquid outlet communicated with the second connecting flow channel, so that a plurality of electric cores can dissipate heat through one liquid cooling plate part (plate) through one liquid inlet and one liquid outlet. Based on the structure that a plurality of electric cores pass through the liquid cooling plate 1 is realized to foretell electric core module, has increased the heat transfer area of electric core and liquid cooling plate 1, all can contact the heat dissipation with the liquid cooling plate on the guarantee every layer electric core contact surface to reduced the required business turn over mouth of a river of liquid cooling plate's quantity, formed a liquid cooling plate through integrated into one piece's two liquid cooling plates. And the liquid cooling plate 1 adopts a stamping welding process, and the internal cavity runner structure 15 is used for the flow of the battery cell cooling liquid in daily life. When the battery cells expand in the charge and discharge process, the adjacent battery cells can effectively extrude the cavity flow channel structure 15 of the liquid cooling plate 1, so that the stability of the overall structure of the battery cell module is ensured. Through the structural design of the bump structure 18, the cooling liquid circularly flows in the cavity flow channel structure 15 and forms a resistance vortex, and the resistance vortex of the cooling liquid is formed around the bump structure 18, so that the cooling liquid energy absorption of the liquid cooling plate 1 can be increased, and the heat dissipation effect is enhanced. When placing through the stack of a plurality of electric core, can ensure simultaneously that the surface of every layer of electric core all can contact the liquid cooling board and dispel the heat, double-deck liquid cooling board integrated design can effectively reduce the water inlet outlet quantity simultaneously, and the cavity design that forms after its punching press can effectively absorb the deformation that electric core inflation brought, guarantee stable in structure. The flow channel of the double-layer liquid cooling plate is internally provided with the salient point structure, so that resistance vortex can be formed to slow down the flow of the cooling liquid, and the double-layer liquid cooling plate can fully absorb heat to improve the heat dissipation efficiency. And meanwhile, the energy density of the battery cells in the battery pack or the battery module is improved by reducing the number of the cooling plates.
In summary, the double-layer liquid cooling plate structure is adopted, and the heat dissipation of the contact surface of each layer of electric core and the liquid cooling plate can be ensured by increasing the heat exchange area between 4 layers of electric cores and the liquid cooling plate. Meanwhile, only one liquid inlet and one liquid outlet are formed in the double-layer liquid cooling plate, so that the number of cooling pipelines of the whole battery pack is reduced. The double-layer liquid cooling plate adopts a stamping and welding integrated forming process, cooling liquid flows in a cavity runner of the liquid cooling plate, a plurality of salient point structures are arranged on the cavity runner, and when the cooling liquid circulates in the runner, resistance vortexes can be formed through the salient point structures, so that the contact time of the cooling liquid and the liquid cooling plate is prolonged, the time of the cooling liquid for absorbing heat is prolonged, and the heat dissipation effect is enhanced. And the cavity runner also has an energy-absorbing collapse function, so that when the battery cell expands, the liquid cooling plate can be extruded, and the battery cell deforms and collapses, thereby ensuring the structural stability of the whole battery cell module. Therefore, the utility model effectively overcomes various defects in the prior art and has high industrial utilization value.
The above embodiments are merely illustrative of the principles of the present utility model and its effectiveness, and are not intended to limit the utility model. Modifications and variations may be made to the above-described embodiments by those skilled in the art without departing from the spirit and scope of the utility model, and it is intended that the appended claims be interpreted as covering all equivalent modifications and variations as fall within the true spirit and scope of the utility model.
Claims (10)
1. A liquid cooling plate apparatus for cooling a battery, comprising:
a liquid cooling plate (1), wherein the liquid cooling plate (1) comprises a liquid cooling plate first part (11), a liquid cooling plate second part (12) and a connecting part (13); wherein,,
the liquid cooling plate first part (11) and the liquid cooling plate second part (12) are oppositely arranged in parallel;
the liquid cooling plate first part (11) and the liquid cooling plate second part (12) are formed by integrally bending, the connecting part (13) is a bending part between the liquid cooling plate first part (11) and the liquid cooling plate second part (12), and cavity runner structures (15) are respectively arranged in the liquid cooling plate first part (11) and the liquid cooling plate second part (12);
the connecting portion (13) comprises a first connecting portion (131) and a second connecting portion (132), a first connecting flow passage communicated with the cavity flow passage structure (15) of the first liquid cooling plate portion (11) is arranged in the first connecting portion (131), a second connecting flow passage communicated with the cavity flow passage structure (15) of the second liquid cooling plate portion (12) is arranged in the second connecting portion (132), a liquid inlet (16) communicated with the first connecting flow passage is formed in the first connecting portion (131), and a liquid outlet (17) communicated with the second connecting flow passage is formed in the second connecting portion (132).
2. The liquid cooling plate apparatus according to claim 1, wherein: the liquid cooling plate first portion (11) includes a first plate (111), a second plate (112) arranged symmetrically to the first plate (111), and a first cavity flow channel (151) formed between the first plate (111) and the second plate (112); the liquid cooling plate second portion (12) includes a third plate (121), a fourth plate (122) symmetrically arranged with the third plate (121), and a second cavity flow passage (152) formed between the third plate (121) and the fourth plate (122).
3. The liquid cooling plate apparatus according to claim 2, wherein: a plurality of salient point structures (18) are uniformly distributed on the first cavity flow channel (151) and the second cavity flow channel (152), and the salient point structures (18) are protruded towards the directions of the first cavity flow channel (151) and the second cavity flow channel (152).
4. A liquid cooling plate apparatus according to claim 3, wherein: the first cavity flow channel (151) and the second cavity flow channel (152) are both U-shaped hollow structures; the cavity flow channel structure (15) comprises the first cavity flow channel (151) and the second cavity flow channel (152).
5. The liquid cooling plate apparatus according to claim 4, wherein: the first connection portion (131) of the connection portion (13) includes a first curved wall, a second curved wall disposed symmetrically opposite the first curved wall, and the first connection flow passage disposed within the first curved wall and the second curved wall.
6. The liquid cooling plate apparatus according to claim 5, wherein: the second connecting portion (132) of the connecting portion (13) includes a third curved wall, a fourth curved wall disposed symmetrically opposite the third curved wall, and the second connecting flow passage disposed within the third curved wall and the fourth curved wall.
7. A battery cell module, comprising:
the liquid cooling plate apparatus according to any one of claims 1 to 6;
a first cell block (21);
a second cell block (22);
a third cell block (23); and
a fourth cell block (24);
the first electric core block (21) and the second electric core block (22) clamp a liquid cooling plate first part (11) of a liquid cooling plate (1) of the liquid cooling plate device, and the third electric core block (23) is stacked on one side, far away from the liquid cooling plate first part (11), of the second electric core block (22); the liquid cooling plate second part (12) is positioned on one side, far away from the second electric core block (22), of the third electric core block (23), and the fourth electric core block (24) and the third electric core block (23) clamp the liquid cooling plate second part (12) between the fourth electric core block and the third electric core block.
8. The cell module of claim 7, wherein: the liquid cooling plate (1) comprises a liquid cooling plate first part (11), a liquid cooling plate second part (12) and a connecting part (13) for connecting the liquid cooling plate first part (11) and the liquid cooling plate second part (12), and cooling liquid flows into and flows out of a first cavity runner (151) of the liquid cooling plate first part (11) and a second cavity runner (152) of the liquid cooling plate second part (12) through a first connecting part (131) and a second connecting part (132) of the connecting part (13) of the liquid cooling plate (1) respectively.
9. The cell module of claim 8, wherein: the first cell block (21), the second cell block (22), the third cell block (23) and the fourth cell block (24) comprise at least one cell.
10. A battery device, characterized by comprising at least one cell module according to any of the preceding claims 7-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320298818.0U CN219419175U (en) | 2023-02-23 | 2023-02-23 | Liquid cooling plate device for cooling battery, corresponding battery cell module and battery device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320298818.0U CN219419175U (en) | 2023-02-23 | 2023-02-23 | Liquid cooling plate device for cooling battery, corresponding battery cell module and battery device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219419175U true CN219419175U (en) | 2023-07-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320298818.0U Active CN219419175U (en) | 2023-02-23 | 2023-02-23 | Liquid cooling plate device for cooling battery, corresponding battery cell module and battery device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219419175U (en) |
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2023
- 2023-02-23 CN CN202320298818.0U patent/CN219419175U/en active Active
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