CN220474718U - Liquid cooling structure and battery pack - Google Patents
Liquid cooling structure and battery pack Download PDFInfo
- Publication number
- CN220474718U CN220474718U CN202321850088.7U CN202321850088U CN220474718U CN 220474718 U CN220474718 U CN 220474718U CN 202321850088 U CN202321850088 U CN 202321850088U CN 220474718 U CN220474718 U CN 220474718U
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- Prior art keywords
- liquid
- liquid cooling
- battery
- battery module
- pipe
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- 239000007788 liquid Substances 0.000 title claims abstract description 208
- 238000001816 cooling Methods 0.000 title claims abstract description 106
- 239000004593 Epoxy Substances 0.000 claims description 18
- 239000002184 metal Substances 0.000 claims description 18
- 229910052751 metal Inorganic materials 0.000 claims description 18
- 238000007789 sealing Methods 0.000 claims description 6
- 230000000149 penetrating effect Effects 0.000 claims description 2
- 238000003780 insertion Methods 0.000 description 4
- 230000017525 heat dissipation Effects 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 230000004308 accommodation Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- 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
Landscapes
- Secondary Cells (AREA)
- Battery Mounting, Suspending (AREA)
Abstract
The embodiment of the utility model provides a liquid cooling structure and a battery pack, and relates to the technical field of batteries. The utility model provides a liquid cooling structure, which comprises a liquid inlet liquid collecting pipe, a liquid outlet liquid collecting pipe and a plurality of liquid cooling flat pipes, wherein liquid inlets of the liquid cooling flat pipes are communicated with the liquid inlet liquid collecting pipe, liquid outlets of the liquid cooling flat pipes are communicated with the liquid outlet liquid collecting pipe, a battery module accommodating space is defined between the adjacent liquid cooling flat pipes, the liquid cooling flat pipes are used for heat exchange with the battery module, compared with the prior art, the liquid cooling structure does not adopt a quick-plug pipeline, but adopts a mode that liquid inlets of the liquid cooling flat pipes are communicated with the liquid inlet liquid collecting pipe, and liquid outlets of the liquid cooling flat pipes are communicated with the liquid outlet liquid collecting pipe to form the liquid cooling structure for cooling the battery module.
Description
Technical Field
The utility model relates to the technical field of batteries, in particular to a liquid cooling structure and a battery pack.
Background
The internal temperature of the battery pack directly influences the safety of the battery pack, and then the use safety of the whole vehicle is influenced. In order to improve the safety of the battery pack, it is necessary to control the temperature of the internal structure, so it is important to increase the heat dissipation performance of the overall structure.
In the prior art, aiming at the cylindrical battery cell liquid cooling mode, all coil the battery cell cylindrical surface through snakelike liquid cooling flat tube, establish ties each liquid cooling flat tube through fast-insertion pipeline, the rethread water inlet and outlet joint is connected with whole car, but because fast-insertion joint is more, the assembly is complicated, has increased the risk of revealing.
Disclosure of Invention
The utility model provides a liquid cooling structure and a battery pack, which can reduce leakage risk of the liquid cooling structure.
Embodiments of the utility model may be implemented as follows:
in a first aspect, the present utility model provides a liquid cooling structure comprising:
a liquid inlet and collection pipe;
a liquid outlet and collecting pipe; and
the liquid cooling flat pipes are connected with the liquid inlet liquid collecting pipes, the liquid outlets of the liquid cooling flat pipes are connected with the liquid outlet liquid collecting pipes, a battery module accommodating space is defined between the liquid cooling flat pipes adjacent to the liquid cooling flat pipes, and the liquid cooling flat pipes are used for heat exchange with the battery module.
In an optional embodiment, the liquid cooling flat tube comprises a first flat tube, a second flat tube and a return tube, wherein a liquid outlet of the first flat tube, the return tube and a liquid inlet of the second flat tube are sequentially communicated, a liquid inlet of the first flat tube is communicated with the liquid inlet liquid collecting tube, and a liquid outlet of the second flat tube is communicated with the liquid outlet liquid collecting tube.
In an alternative embodiment, the liquid inlet and liquid collecting pipes are arranged at intervals, and the first flat pipe and the second flat pipe are parallel.
In a second aspect, the present utility model provides a battery pack, including a battery module, a battery housing, and a liquid cooling structure according to any one of the foregoing embodiments, the battery module being disposed in the battery module accommodating space, the battery module and the liquid cooling structure being disposed in the battery housing.
In an alternative embodiment, the battery pack further comprises a plurality of heat conducting pads, and the heat conducting pads are arranged on two opposite sides of each liquid cooling flat tube.
In an alternative embodiment, the battery pack further includes epoxy plates respectively disposed at sides of the thermal pads away from the battery module receiving space.
In an alternative embodiment, the battery pack further comprises a sheet metal part, wherein the sheet metal part is arranged on one side, away from the heat conducting pad, of the epoxy plate, and the sheet metal part is located between the epoxy plate and the inner wall of the battery shell.
In an alternative embodiment, the battery pack further includes a fixing rod penetrating through the sheet metal part, the epoxy plate, the plurality of heat conductive pads, and the battery module at the same time.
In an alternative embodiment, the battery case includes an upper case and a lower case, the lower case has a receiving cavity, the upper case is covered with the lower case, and the battery module and the liquid cooling structure are disposed in the receiving cavity.
In an alternative embodiment, the battery pack further includes a sealing ring disposed between the upper case and the lower case to seal the battery case.
The liquid cooling structure and the battery pack provided by the embodiment of the utility model have the beneficial effects that:
the utility model provides a liquid cooling structure, which comprises a liquid inlet liquid collecting pipe, a liquid outlet liquid collecting pipe and a plurality of liquid cooling flat pipes, wherein liquid inlets of the liquid cooling flat pipes are communicated with the liquid inlet liquid collecting pipe, liquid outlets of the liquid cooling flat pipes are communicated with the liquid outlet liquid collecting pipe, a battery module accommodating space is defined between the adjacent liquid cooling flat pipes, the liquid cooling flat pipes are used for heat exchange with the battery module, compared with the prior art, the liquid cooling structure does not adopt a quick-plug pipeline, but adopts a mode that liquid inlets of the liquid cooling flat pipes are communicated with the liquid inlet liquid collecting pipe, and liquid outlets of the liquid cooling flat pipes are communicated with the liquid outlet liquid collecting pipe to form the liquid cooling structure for cooling the battery module.
The utility model provides a battery pack, which comprises a battery module, a battery shell and the liquid cooling structure, wherein the battery module is arranged in a battery module accommodating space, the battery module and the liquid cooling structure are arranged in the battery shell, and the battery pack has all functions of the liquid cooling structure.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some embodiments of the present utility model and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic view of a battery pack provided in an embodiment of the present utility model;
fig. 2 is a first exploded view of a battery pack provided in an embodiment of the present utility model;
FIG. 3 is a schematic diagram of a liquid cooling structure according to an embodiment of the present utility model;
fig. 4 is a second exploded view of a battery pack provided in an embodiment of the present utility model;
fig. 5 is a third exploded view of a battery pack provided in an embodiment of the present utility model.
Icon: 1000-a liquid cooling structure; 100-a liquid inlet and collection pipe; 200-a liquid outlet and collecting pipe; 201-a battery module accommodating space; 300-liquid cooling flat tube; 310-a first flat tube; 320-a second flat tube; 330-return pipe; 400-liquid inlet pipe; 500-liquid outlet pipes; 2000-battery pack; 2100-battery module; 2200-a battery housing; 2210-an upper housing; 2220-lower housing; 2230-sealing ring; 2300-thermal pad; 2400-epoxy panel; 2500-sheet metal part; 2600—a fixed rod; 2700—collector plate.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments of the present utility model. The components of the embodiments of the present utility model generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the utility model, as presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures.
In the description of the present utility model, it should be noted that, if the terms "upper", "lower", "inner", "outer", and the like indicate an azimuth or a positional relationship based on the azimuth or the positional relationship shown in the drawings, or the azimuth or the positional relationship in which the inventive product is conventionally put in use, it is merely for convenience of describing the present utility model and simplifying the description, and it is not indicated or implied that the apparatus or element referred to must have a specific azimuth, be configured and operated in a specific azimuth, and thus it should not be construed as limiting the present utility model.
Furthermore, the terms "first," "second," and the like, if any, are used merely for distinguishing between descriptions and not for indicating or implying a relative importance.
It should be noted that the features of the embodiments of the present utility model may be combined with each other without conflict.
As mentioned in the background art, the internal temperature of the battery pack directly affects the safety thereof, thereby affecting the safety of the whole vehicle. In order to improve the safety of the battery pack, it is necessary to control the temperature of the internal structure, so it is important to increase the heat dissipation performance of the overall structure.
In the prior art, to the mode of cylinder electricity core liquid cooling, all be through the flat pipe of snakelike liquid cooling around electric core face of cylinder, establish ties each liquid cooling flat pipe through quick-connect pipe way, the rethread water inlet and outlet connects and is connected with whole car, but because quick-connect connector is more, the assembly is complicated, has increased and has revealed the risk, leads to can not being applied to direct cooling system, simultaneously, uses more quick-connect connector, and the cost of battery package also can rise.
In view of this, please refer to fig. 1-5, the liquid cooling structure 1000 and the battery pack 2000 according to the embodiment of the present utility model can solve this problem, which will be described in detail below.
The utility model provides a battery pack 2000, the battery pack 2000 comprises a battery module 2100, a battery housing 2200 and a liquid cooling structure 1000, the battery module 2100 is arranged in a battery module accommodating space 201, the battery module 2100 and the liquid cooling structure 1000 are arranged in the battery housing 2200, and the liquid cooling structure 1000 of the battery pack 2000 can reduce leakage risk and reduce cost of the battery pack 2000 without using a quick connector.
Specifically, the liquid cooling structure 1000 includes a liquid inlet collector tube 100, a liquid outlet collector tube 200 and a plurality of liquid cooling flat tubes 300, wherein liquid inlets of the liquid cooling flat tubes 300 are all communicated with the liquid inlet collector tube 100, liquid outlets of the liquid cooling flat tubes 300 are all communicated with the liquid outlet collector tube 200, a battery module accommodating space 201 is defined between adjacent liquid cooling flat tubes 300, and the liquid cooling flat tubes 300 are used for heat exchange with the battery module 2100, for example, the liquid cooling flat tubes 300 can cool the battery module 2100.
Of course, in some cases, the liquid-cooled flat tube 300 may heat the battery module 2100.
Compared with the prior art, the liquid cooling structure 1000 does not adopt a quick insertion pipeline, but adopts the mode that liquid inlets of a plurality of liquid cooling flat pipes 300 are communicated with the liquid inlet liquid collecting pipe 100 and liquid outlets of a plurality of liquid cooling flat pipes 300 are communicated with the liquid outlet liquid collecting pipe 200, so that the liquid cooling structure 1000 for cooling the battery module 2100 is formed, and the leakage risk can be reduced due to the fact that the quick insertion pipeline is not arranged.
In this embodiment, the liquid cooling flat tube 300 includes a first flat tube 310, a second flat tube 320 and a return tube 330, where a liquid outlet of the first flat tube 310, the return tube 330 and a liquid inlet of the second flat tube 320 are sequentially communicated, a liquid inlet of the first flat tube 310 is communicated with the liquid inlet liquid collecting tube 100, a liquid outlet of the second flat tube 320 is communicated with the liquid outlet liquid collecting tube 200, the liquid inlet liquid collecting tube 100 and the liquid outlet liquid collecting tube 200 are arranged at intervals, and the first flat tube 310 and the second flat tube 320 are parallel.
In order to facilitate liquid to enter or flow out of the liquid cooling flat tube 300, the liquid inlet and collecting tube 100 is provided with a liquid inlet tube 400, the liquid inlet tube 400 is communicated with the inner cavity of the liquid inlet and collecting tube 100, the liquid outlet and collecting tube 200 is provided with a liquid outlet tube 500, and the liquid outlet tube 500 is communicated with the inner cavity of the liquid outlet and collecting tube 200.
It should be noted that, since the leakage risk of the liquid cooling structure 1000 is small, the liquid cooling structure 1000 can also be applied to a direct cooling system.
Specifically, the number of the battery modules 2100 is plural, specifically three battery modules 2100, each battery module 2100 includes a plurality of cylindrical electric cores, and the number of the liquid cooling flat tubes 300 is four, so as to form three battery module accommodating spaces 201.
The battery case 2200 includes an upper case 2210 and a lower case 2220, the lower case 2220 has a receiving cavity, the upper case 2210 is covered on the lower case 2220, all the battery modules 2100 and the liquid cooling structure 1000 are disposed in the receiving cavity, and the battery pack 2000 further includes a sealing ring 2230 disposed between the upper case 2210 and the lower case 2220 to seal the battery case 2200.
In order to facilitate heat exchange between the liquid cooling flat tubes 300 and the battery module 2100, the battery pack 2000 further includes a plurality of heat conductive pads 2300, the heat conductive pads 2300 are disposed on two opposite sides of each liquid cooling flat tube 300, and a current collecting plate 2700 is welded on the battery module 2100.
Also, for convenience of insulation, the battery pack 2000 further includes two epoxy plates 2400, and the two epoxy plates 2400 are respectively disposed at sides of the two thermal pads 2300 remote from the battery module receiving space 201.
In addition, the battery pack 2000 further comprises two sheet metal parts 2500, the cross section of each sheet metal part 2500 is similar to an L-shaped structure, the sheet metal parts 2500 are conveniently abutted against the lower shell 2220 of the battery shell 2200, the two sheet metal parts 2500 are respectively arranged on one side, far away from the heat conducting pad 2300, of the two epoxy plates 2400, and the sheet metal parts 2500 are located between the epoxy plates 2400 and the inner wall of the lower shell 2220 of the battery shell.
In addition, the battery pack 2000 further includes four fixing rods 2600, the fixing rods 2600 are threaded rods, and the four fixing rods 2600 simultaneously penetrate through the two sheet metal parts 2500, the two epoxy plates 2400, all the heat conductive pads 2300 and all the battery modules 2100 to form an integral structure, so that the battery pack is convenient to be assembled into the lower housing 2220, and it is easy to understand that the heat conductive pads 2300, the sheet metal parts 2500, the epoxy plates 2400, the current collecting plates 2700 and the fixing rods 2600 are all located in the accommodating cavities of the lower housing 2220.
Specifically, when the battery pack 2000 is assembled, the battery module 2100 is assembled, the current collector plate 2700 is welded, the welded battery modules 2100 are placed in sequence, the heat conductive pad 2300 is attached to the liquid cooling flat tube 300 of the liquid cooling structure 1000, and the liquid cooling structure 1000 with the heat conductive pad 2300 attached is placed in the placed battery module 2100.
Then, the epoxy plate 2400 and the sheet metal 2500 are placed on both sides, the battery module 2100, the sheet metal 2500, the epoxy plate 2400, and the heat conductive pad 2300 are fixed together by the fixing rod 2600, and are hung into the lower case 2220 together and fixed by bolts, the internal harness, the copper bar, the electrical parts, the BMS (battery management system), and the like are assembled, and finally the sealing ring 2230 is installed, and the upper case 2210 is closed.
In summary, this liquid cooling structure 1000 includes feed liquor collector tube 100, drain collector tube 200 and a plurality of liquid cooling flat tube 300, the inlet of a plurality of liquid cooling flat tube 300 all communicates with feed liquor collector tube 100, the liquid outlet of a plurality of liquid cooling flat tube 300 all communicates with drain collector tube 200, the battery module accommodation space 201 is defined between the adjacent liquid cooling flat tube 300, liquid cooling flat tube 300 is used for with battery module 2100 heat exchange, for current technical scheme, this liquid cooling structure 1000 does not adopt fast-plug pipeline, but adopts the inlet of a plurality of liquid cooling flat tube 300 all to communicate with feed liquor collector tube 100, the liquid outlet of a plurality of liquid cooling flat tube 300 all communicates with drain collector tube 200 mode, form the liquid cooling structure 1000 that is used for the cooling to battery module 2100, because there is not fast-plug pipeline, can reduce the risk of revealing.
The battery pack 2000 includes the battery module 2100, the battery case 2200, and the liquid cooling structure 1000 described above, the battery module 2100 is disposed in the battery module accommodating space 201, the battery module 2100 and the liquid cooling structure 1000 are disposed in the battery case 2200, and the battery pack 2000 has all the functions of the liquid cooling structure 1000 described above.
The foregoing is merely illustrative of the present utility model, and the present utility model is not limited thereto, and any changes or substitutions easily contemplated by those skilled in the art within the scope of the present utility model should be included in the present utility model. Therefore, the protection scope of the present utility model shall be subject to the protection scope of the claims.
Claims (9)
1. A liquid cooling structure, comprising:
a liquid inlet and collection pipe (100);
a liquid outlet and collecting pipe (200); and
the liquid cooling flat pipes (300) are communicated with the liquid inlet liquid collecting pipes (100) through liquid inlets of the liquid cooling flat pipes (300), liquid outlets of the liquid cooling flat pipes (300) are communicated with the liquid outlet liquid collecting pipes (200), a battery module accommodating space (201) is defined between adjacent liquid cooling flat pipes (300), and the liquid cooling flat pipes (300) are used for exchanging heat with the battery module (2100);
the liquid cooling flat pipe (300) comprises a first flat pipe (310), a second flat pipe (320) and a return pipe (330), wherein a liquid outlet of the first flat pipe (310), the return pipe (330) and a liquid inlet of the second flat pipe (320) are sequentially communicated, a liquid inlet of the first flat pipe (310) is communicated with the liquid inlet liquid collecting pipe (100), and a liquid outlet of the second flat pipe (320) is communicated with the liquid outlet liquid collecting pipe (200).
2. The liquid cooling structure according to claim 1, wherein the liquid inlet liquid collecting pipe (100) and the liquid outlet liquid collecting pipe (200) are arranged at intervals, and the first flat pipe (310) and the second flat pipe (320) are parallel.
3. A battery pack, characterized by comprising a battery module (2100), a battery housing (2200), and the liquid cooling structure of claim 1 or claim 2, wherein the battery module (2100) is disposed in the battery module accommodating space (201), and the battery module (2100) and the liquid cooling structure are disposed in the battery housing (2200).
4. The battery pack according to claim 3, further comprising a plurality of thermal pads (2300), wherein the thermal pads (2300) are disposed on opposite sides of each liquid-cooled flat tube (300).
5. The battery pack according to claim 4, further comprising epoxy plates (2400), the epoxy plates (2400) being respectively disposed at sides of the thermal pads (2300) remote from the battery module accommodating space (201).
6. The battery pack of claim 5, further comprising a sheet metal part (2500), the sheet metal part (2500) being disposed on a side of the epoxy plate (2400) remote from the thermal pad (2300), and the sheet metal part (2500) being located between the epoxy plate (2400) and an inner wall of the battery case (2200).
7. The battery pack according to claim 6, further comprising a fixing rod (2600), the fixing rod (2600) penetrating through the sheet metal member (2500), the epoxy plate (2400), the plurality of thermal pads (2300) and the battery module (2100) at the same time.
8. The battery pack according to claim 3, wherein the battery housing (2200) includes an upper case (2210) and a lower case (2220), the lower case (2220) has a receiving cavity, the upper case (2210) is covered on the lower case (2220), and the battery module (2100) and the liquid cooling structure are disposed in the receiving cavity.
9. The battery pack according to claim 8, further comprising a sealing ring (2230), the sealing ring (2230) being disposed between the upper housing (2210) and the lower housing (2220) to seal the battery case (2200).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321850088.7U CN220474718U (en) | 2023-07-13 | 2023-07-13 | Liquid cooling structure and battery pack |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321850088.7U CN220474718U (en) | 2023-07-13 | 2023-07-13 | Liquid cooling structure and battery pack |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220474718U true CN220474718U (en) | 2024-02-09 |
Family
ID=89780013
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321850088.7U Active CN220474718U (en) | 2023-07-13 | 2023-07-13 | Liquid cooling structure and battery pack |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220474718U (en) |
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2023
- 2023-07-13 CN CN202321850088.7U patent/CN220474718U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant |