CN220209084U - Soaking type liquid cooling battery pack - Google Patents
Soaking type liquid cooling battery pack Download PDFInfo
- Publication number
- CN220209084U CN220209084U CN202321770289.6U CN202321770289U CN220209084U CN 220209084 U CN220209084 U CN 220209084U CN 202321770289 U CN202321770289 U CN 202321770289U CN 220209084 U CN220209084 U CN 220209084U
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- liquid
- battery pack
- heat exchanger
- inlet
- outlet
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- 239000007788 liquid Substances 0.000 title claims abstract description 104
- 238000001816 cooling Methods 0.000 title claims abstract description 27
- 238000002791 soaking Methods 0.000 title claims abstract description 14
- 239000000110 cooling liquid Substances 0.000 claims abstract description 32
- 239000002826 coolant Substances 0.000 claims abstract description 15
- 238000007789 sealing Methods 0.000 claims description 17
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 15
- 238000007654 immersion Methods 0.000 claims description 10
- 238000004891 communication Methods 0.000 claims description 7
- 239000012782 phase change material Substances 0.000 claims description 4
- 229920002545 silicone oil Polymers 0.000 claims description 3
- 230000017525 heat dissipation Effects 0.000 abstract description 6
- 238000004880 explosion Methods 0.000 abstract description 5
- 230000008676 import Effects 0.000 abstract 1
- 238000007599 discharging Methods 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000000178 monomer Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000008707 rearrangement Effects 0.000 description 1
- 230000008439 repair process Effects 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
Abstract
The utility model belongs to the technical field of batteries, and discloses a soaking type liquid cooling battery pack. The soaking type liquid cooling battery pack comprises a battery box, a battery pack and a heat exchanger. The battery box is internally filled with insulating cooling liquid, and a liquid inlet and a liquid outlet for the insulating cooling liquid to enter and exit are formed in the side wall of the battery box; the battery pack is arranged in the battery box and is in contact heat exchange with the insulating cooling liquid; the heat exchanger sets up in the battery box outside, and the liquid outlet communicates with the first import of heat exchanger, and the first export and the inlet intercommunication of heat exchanger, and the heat exchanger is used for absorbing the heat of insulating coolant liquid. The soaking type liquid cooling battery pack can realize rapid heat dissipation of the battery pack, reduce the risk of ignition and explosion of the battery pack, and improve the temperature consistency between the single batteries.
Description
Technical Field
The utility model relates to the technical field of batteries, in particular to a soaking type liquid cooling battery pack.
Background
The battery can generate a great amount of heat in the discharging and charging processes to raise the temperature of the battery pack, and overheat can cause the performance of the battery to be reduced or even generate the risk of burning, so that a certain measure must be taken to control the excessive rise of the temperature during the charging and discharging of the battery.
At present, air cooling or liquid cooling is generally adopted for temperature control. The air cooling is slow, the cooling is uneven, and the cooling effect is poor. Liquid cooling generally utilizes cooling liquid circulation to dissipate heat, needs to arrange liquid cooling pipeline, occupies a large amount of space in the battery package, and the system is complicated, and the cost is higher. And when the battery pack is out of control and instantaneously generates a large amount of heat, the battery pack cannot be cooled quickly by the two temperature control modes of air cooling and liquid cooling, and the battery pack is easy to fire and explode.
Therefore, it is desirable to provide an immersion type liquid cooling battery pack to solve the above-mentioned problems.
Disclosure of Invention
The utility model provides a soaking type liquid cooling battery pack, which can realize rapid heat dissipation of the battery pack, reduce the risk of ignition and explosion of the battery pack and improve the temperature consistency among single batteries.
To achieve the purpose, the utility model adopts the following technical scheme:
an immersion liquid cooled battery pack comprising:
the battery box is filled with insulating cooling liquid, and a liquid inlet and a liquid outlet for the insulating cooling liquid to enter and exit are formed in the side wall of the battery box;
the battery pack is arranged in the battery box and is in contact heat exchange with the insulating cooling liquid;
the heat exchanger is arranged on the outer side of the battery box, the liquid outlet is communicated with a first inlet of the heat exchanger, a first outlet of the heat exchanger is communicated with the liquid inlet, and the heat exchanger is used for absorbing heat of the insulating cooling liquid.
Optionally, the soaking type liquid cooling battery pack further comprises a water pump, wherein an inlet of the water pump is communicated with the liquid outlet, and an outlet of the water pump is communicated with the first inlet; or alternatively, the first and second heat exchangers may be,
the inlet of the water pump is communicated with the first outlet, and the outlet of the water pump is communicated with the liquid inlet.
Optionally, the two opposite side walls of the battery box are respectively provided with the liquid inlet and the liquid outlet, and the heat exchangers are arranged on the two opposite side walls of the battery box; the first inlet and the first outlet of each heat exchanger are respectively communicated with the corresponding liquid outlet and liquid inlet.
Optionally, the soaking type liquid cooling battery pack further comprises a battery management system, wherein the battery management system is in signal connection with the heat exchanger, and the battery management system can control the start and stop of the heat exchanger according to the temperature of the battery pack.
Optionally, the heat exchanger is detachably connected to the battery box.
Optionally, the first inlet is fixedly connected with a liquid inlet pipe, the first outlet is fixedly connected with a liquid outlet pipe, the liquid inlet pipe is in sealing connection with the liquid outlet, and the liquid outlet pipe is in sealing connection with the liquid inlet.
Optionally, a first sealing element is arranged between the liquid inlet pipe and the liquid outlet, and a second sealing element is arranged between the liquid outlet pipe and the liquid inlet.
Optionally, a second inlet and a second outlet for heat exchange medium to enter and exit are arranged on one side of the heat exchanger, which is away from the battery box.
Optionally, the heat exchanger is a plate heat exchanger.
Optionally, the insulating cooling liquid is silicone oil or an insulating phase change material.
The utility model has the beneficial effects that:
the utility model provides a soaking type liquid cooling battery pack which comprises a battery box, a battery pack and a heat exchanger. By immersing the battery pack in the insulating cooling liquid in the battery box, the insulating cooling liquid is in contact with the battery pack to exchange heat, and compared with the mode of exchanging heat to the battery pack through a liquid cooling pipeline in the prior art, on one hand, each single battery in the battery pack can be in contact with the insulating cooling liquid, so that the temperature consistency among the single batteries is improved; on the other hand, the space for arranging the liquid cooling pipeline is not required to be reserved in the battery box, so that the space utilization rate of the battery pack is improved; in yet another aspect, pipeline costs are saved.
The heat exchanger is arranged to absorb the heat of the insulating cooling liquid in the battery box, so that the temperature of the insulating cooling liquid in the battery box can be reduced rapidly, the temperature of the battery pack can be reduced rapidly through the insulating cooling liquid when the battery is out of control, and the risk of fire and explosion of the battery pack is reduced. And the heat exchanger is arranged to exchange heat with the insulating cooling liquid, so that the heat exchange efficiency of the insulating cooling liquid is improved compared with the heat exchange of the insulating cooling liquid and the battery box.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the following description will briefly explain the drawings needed in the description of the embodiments of the present utility model, and it is obvious that the drawings in the following description are only some embodiments of the present utility model, and other drawings may be obtained according to the contents of the embodiments of the present utility model and these drawings without inventive effort for those skilled in the art.
Fig. 1 is an exploded view of a soaking type liquid-cooled battery pack according to an embodiment of the present utility model;
fig. 2 is a schematic structural diagram of an immersion liquid-cooled battery pack according to an embodiment of the present utility model;
fig. 3 is a top view of a heat exchanger provided by an embodiment of the present utility model.
In the figure:
100. a battery box; 200. a battery pack; 300. a heat exchanger; 310. a liquid inlet pipe; 320. a liquid outlet pipe; 330. a second inlet; 340. a second outlet; 400. a battery management system.
Detailed Description
The utility model is described in further detail below with reference to the drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the utility model and are not limiting thereof. It should be further noted that, for convenience of description, only some, but not all of the structures related to the present utility model are shown in the drawings.
In the description of the present utility model, unless explicitly stated and limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.
In the present utility model, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.
In the description of the present embodiment, the terms "upper", "lower", "left", "right", and the like are orientation or positional relationships based on those shown in the drawings, merely for convenience of description and simplicity of operation, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the utility model. Furthermore, the terms "first," "second," and the like, are used merely for distinguishing between descriptions and not for distinguishing between them.
The embodiment provides a soak formula liquid cooling battery package, can realize the quick heat dissipation of battery package, has reduced the risk that the battery package fires explosion to the temperature uniformity between the monomer battery has been improved.
Specifically, as shown in fig. 1 to 3, the immersion liquid-cooled battery pack includes a battery case 100, a battery pack 200, and a heat exchanger 300. Wherein, the battery box 100 is filled with an insulating coolant, the battery pack 200 is arranged in the battery box 100, and the battery pack 200 is in contact heat exchange with the insulating coolant. By immersing the battery pack 200 in the insulating coolant in the battery box 100, the insulating coolant is in contact with the battery pack 200 for heat exchange, and compared with the mode of carrying out heat exchange on the battery pack 200 through a liquid cooling pipeline in the prior art, on one hand, each single battery in the battery pack 200 can be in contact with the insulating coolant, so that the temperature consistency among the single batteries is improved; on the other hand, the space for arranging the liquid cooling pipeline is not required to be reserved in the battery box 100, so that the space utilization rate of the battery pack is improved; in yet another aspect, pipeline costs are saved. The heat exchanger 300 is arranged outside the battery box 100, a liquid inlet and a liquid outlet for the insulating cooling liquid to enter and exit are formed in the side wall of the battery box 100, the liquid outlet is communicated with the first inlet of the heat exchanger 300, the first outlet of the heat exchanger 300 is communicated with the liquid inlet, and the heat exchanger 300 is used for absorbing heat of the insulating cooling liquid so as to reduce the temperature of the insulating cooling liquid. By arranging the heat exchanger 300 to absorb the heat of the insulating cooling liquid in the battery box 100, the temperature of the insulating cooling liquid in the battery box 100 can be rapidly reduced, so that when the battery is out of control, the temperature of the battery pack can be rapidly reduced through the insulating cooling liquid, and the risk of fire and explosion of the battery pack is further reduced. Further, by providing the heat exchanger 300 to exchange heat with the insulating coolant, the heat exchange efficiency of the insulating coolant is improved as compared with the heat exchange between the insulating coolant and the battery case 100.
Preferably, the immersion liquid cooling battery pack further includes a water pump (not shown) for supplying power to the flow of the insulating coolant. Alternatively, in one embodiment, the inlet of the water pump may be in communication with the liquid outlet and the outlet of the water pump may be in communication with the first inlet. In another embodiment, the inlet of the water pump may also be in communication with the first outlet, and the outlet of the water pump may also be in communication with the liquid inlet.
Further, with continued reference to fig. 1 and 2, the above-mentioned immersed liquid-cooled battery pack further includes a battery management system 400, where the battery management system 400 is in signal connection with the heat exchanger 300, and the battery management system 400 can control the start and stop of the heat exchanger 300 according to the temperature of the battery pack 200.
In this embodiment, the battery management system 400 may be a centralized or distributed controller, for example, the controller may be a single-chip microcomputer, or may be formed by distributed multiple single-chip microcomputers, where a control program may be run to further control the heat exchanger 300 to implement its function.
Illustratively, in the present embodiment, the above battery pack operates according to the following principle:
the battery management system 400 detects the temperature of the battery pack 200 in real time, and when the temperature of the battery pack 200 exceeds a preset temperature, the battery management system 400 controls the heat exchanger 300 to start, and the heat exchanger 300 absorbs the heat of the insulating cooling liquid to accelerate the heat dissipation of the battery pack 200; when the temperature of the battery pack 200 does not exceed the preset temperature, the battery management system 400 controls the heat exchanger 300 to stop running, and the battery pack 200 is cooled by the insulating cooling liquid, so that the energy consumption is reduced.
Alternatively, in the present embodiment, the preset temperature is 25 ℃. In other embodiments, the preset temperature may be set to be other, and may be set according to actual needs, which is not specifically limited in this application.
Optionally, the battery pack further includes a signal acquisition module, where the signal acquisition module can acquire a temperature signal of the battery pack 200, the signal acquisition module is in signal connection with the battery management system 400, and the battery management system 400 controls the start and stop of the heat exchanger 300 through the temperature signal acquired by the signal acquisition module.
Further, referring to fig. 1 and 2, the two opposite side walls of the battery case 100 are respectively provided with a liquid inlet and a liquid outlet, and the heat exchanger 300 is disposed on the two opposite side walls of the battery case 100. Specifically, the first inlet and the first outlet of each heat exchanger 300 are respectively in communication with a corresponding liquid outlet and liquid inlet. By arranging two heat exchangers 300, the heat dissipation efficiency of the insulating coolant can be increased, and the purpose of quickly reducing the temperature of the battery pack 200 in a short time through the insulating coolant can be further achieved.
Alternatively, the battery management system 400 may also control only one heat exchanger 300 to be turned on or two heat exchangers 300 to be turned on simultaneously according to the temperature control of the battery pack 200, so as to realize diversified control of the heat of the battery pack. And, when one of the heat exchangers 300 is damaged and cannot work, the heat dissipation of the battery pack is not affected, and the improvement of the working reliability of the battery pack is facilitated.
Further, in the present embodiment, the heat exchanger 300 is detachably connected to the battery box 100. The removable connection facilitates replacement and repair of the heat exchanger 300.
Alternatively, as shown in fig. 2 and 3, in one embodiment, the first inlet is fixedly connected with a liquid inlet pipe 310, the first outlet is fixedly connected with a liquid outlet pipe 320, the liquid inlet pipe 310 is in sealing connection with the liquid outlet, and the liquid outlet pipe 320 is in sealing connection with the liquid inlet. The connection mode has the advantages of simple structure, convenient installation and disassembly of the heat exchanger 300, no need of other parts and low cost. In other embodiments, the heat exchanger 300 may be fastened to the battery box 100 by bolts, and the connection strength of the bolting is high, so that the structure is simple, and the installation and the disassembly are convenient.
Further, a first sealing member is disposed between the liquid inlet pipe 310 and the liquid outlet, and a second sealing member is disposed between the liquid outlet pipe 320 and the liquid inlet. The first seal and the second seal are optionally but not limited to sealing rings. The sealing between the liquid inlet pipe 310 and the liquid outlet is realized through the first sealing piece, and the sealing between the liquid outlet pipe 320 and the liquid inlet is realized through the second sealing piece, so that the structure is simple, the cost is low, the connection strength between the liquid inlet pipe 310 and the liquid outlet can be improved, and the connection strength between the liquid outlet pipe 320 and the liquid inlet can be improved.
Further, with continued reference to fig. 1-3, a side of the heat exchanger 300 facing away from the battery case 100 is provided with a second inlet 330 and a second outlet 340 for a heat exchange medium for exchanging heat with the insulating coolant. Optionally, the heat exchange medium can be liquid or gas, and is set according to actual needs.
Alternatively, in the present embodiment, the heat exchanger 300 is a plate heat exchanger. In other embodiments, the heat exchanger 300 may be other, such as a fin type heat exchanger, and the like, and may be configured according to actual needs, which is not specifically limited in this application.
Alternatively, the insulating coolant may be silicone oil having insulating properties. The insulating cooling liquid can also be an insulating phase change material, and the insulating phase change material has high heat absorption capacity, so that the insulating cooling liquid can be cooled rapidly.
It is to be understood that the above examples of the present utility model are provided for clarity of illustration only and are not limiting of the embodiments of the present utility model. Various obvious changes, rearrangements and substitutions can be made by those skilled in the art without departing from the scope of the utility model. It is not necessary here nor is it exhaustive of all embodiments. Any modification, equivalent replacement, improvement, etc. which come within the spirit and principles of the utility model are desired to be protected by the following claims.
Claims (10)
1. Soak formula liquid cooling battery package, its characterized in that includes:
the battery box (100), the battery box (100) is filled with insulating cooling liquid, and a liquid inlet and a liquid outlet for the insulating cooling liquid to enter and exit are arranged on the side wall of the battery box (100);
the battery pack (200) is arranged in the battery box (100), and the battery pack (200) is in contact heat exchange with the insulating cooling liquid;
the heat exchanger (300) is arranged on the outer side of the battery box (100), the liquid outlet is communicated with a first inlet of the heat exchanger (300), a first outlet of the heat exchanger (300) is communicated with the liquid inlet, and the heat exchanger (300) is used for absorbing heat of the insulating cooling liquid.
2. The immersion liquid cooled battery pack of claim 1, further comprising a water pump, an inlet of the water pump being in communication with the liquid outlet, an outlet of the water pump being in communication with the first inlet; or alternatively, the first and second heat exchangers may be,
the inlet of the water pump is communicated with the first outlet, and the outlet of the water pump is communicated with the liquid inlet.
3. The soaking liquid-cooled battery pack according to claim 1, wherein the liquid inlet and the liquid outlet are formed in opposite side walls of the battery box (100), and the heat exchanger (300) is arranged on opposite side walls of the battery box (100); the first inlet and the first outlet of each heat exchanger (300) are respectively communicated with the corresponding liquid outlet and liquid inlet.
4. The immersion liquid cooled battery pack according to claim 1, further comprising a battery management system (400), the battery management system (400) being in signal connection with the heat exchanger (300), the battery management system (400) being capable of controlling the start-stop of the heat exchanger (300) in dependence on the temperature of the battery pack (200).
5. The immersion liquid cooled battery pack according to claim 1, wherein the heat exchanger (300) is detachably connected to the battery box (100).
6. The soaking liquid-cooled battery pack according to claim 5, wherein the first inlet is fixedly connected with a liquid inlet pipe (310), the first outlet is fixedly connected with a liquid outlet pipe (320), the liquid inlet pipe (310) is in sealing connection with the liquid outlet, and the liquid outlet pipe (320) is in sealing connection with the liquid inlet.
7. The soaking liquid-cooled battery pack according to claim 6, wherein a first sealing member is arranged between the liquid inlet pipe (310) and the liquid outlet, and a second sealing member is arranged between the liquid outlet pipe (320) and the liquid inlet.
8. The immersion liquid cooled battery pack according to any one of claims 1-7, wherein a side of the heat exchanger (300) facing away from the battery box (100) is provided with a second inlet (330) and a second outlet (340) for heat exchange medium.
9. The submerged liquid cooled battery pack according to any of claims 1-7, characterized in that the heat exchanger (300) is a plate heat exchanger.
10. The immersion liquid cooled battery pack according to any one of claims 1 to 7, wherein the insulating coolant is silicone oil or an insulating phase change material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321770289.6U CN220209084U (en) | 2023-07-07 | 2023-07-07 | Soaking type liquid cooling battery pack |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321770289.6U CN220209084U (en) | 2023-07-07 | 2023-07-07 | Soaking type liquid cooling battery pack |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220209084U true CN220209084U (en) | 2023-12-19 |
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ID=89145658
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321770289.6U Active CN220209084U (en) | 2023-07-07 | 2023-07-07 | Soaking type liquid cooling battery pack |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220209084U (en) |
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2023
- 2023-07-07 CN CN202321770289.6U patent/CN220209084U/en active Active
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