CN220569746U - Heat dissipation device for battery module balancing module, battery management system and battery pack - Google Patents
Heat dissipation device for battery module balancing module, battery management system and battery pack Download PDFInfo
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- CN220569746U CN220569746U CN202321834635.2U CN202321834635U CN220569746U CN 220569746 U CN220569746 U CN 220569746U CN 202321834635 U CN202321834635 U CN 202321834635U CN 220569746 U CN220569746 U CN 220569746U
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- 230000017525 heat dissipation Effects 0.000 title claims abstract description 72
- 239000007788 liquid Substances 0.000 claims abstract description 97
- 238000001816 cooling Methods 0.000 claims abstract description 80
- 238000012546 transfer Methods 0.000 claims abstract description 6
- 239000000178 monomer Substances 0.000 abstract description 13
- 238000000034 method Methods 0.000 abstract description 5
- 230000008569 process Effects 0.000 abstract description 5
- 230000000694 effects Effects 0.000 description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- 239000003292 glue Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 1
- 230000004308 accommodation Effects 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000000110 cooling liquid Substances 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 229910052744 lithium Inorganic materials 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
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Abstract
The utility model provides a heat dissipation device for a battery module balancing module, a battery management system and a battery pack. This a heat abstractor for balanced module of battery module includes: the heat dissipation structure comprises heat dissipation fins arranged on at least one side of the equalization module, and the heat dissipation fins are used for dissipating heat of the equalization module; the liquid cooling device comprises a liquid cooling pipe, and the heat dissipation structure is configured to be in contact with the liquid cooling pipe so as to transfer heat generated by the balancing module to the liquid cooling pipe. The heat dissipation device for the battery module balancing module can actively dissipate heat of the balancing module, so that the problem that the consistency of battery monomers is affected due to the fact that the temperature difference among the battery monomers is increased due to heat generated in the operation process of the balancing module is avoided.
Description
Technical Field
The utility model relates to the technical field of electric automobiles, in particular to a heat dissipation device for a battery module balancing module, a battery management system and a battery pack.
Background
The electric vehicle mainly uses a power battery such as a lithium battery as a power driving source, the performance of the power battery is sensitive to temperature change, and the reliability and the safety performance of the electric vehicle can be influenced by too high or too low temperature in the using or storing process. The voltages of the charged battery cells cannot be completely consistent due to the inconsistency among the battery cells, so that the inconsistent battery cells need to be subjected to equalization processing in order to solve the inconsistency among the battery cells. At present, the electric automobile power battery pack mainly adopts a passive equalization mode, and the equalization module of the battery management system consumes energy, and is connected with the battery monomers, and because the distance between the equalization module and the battery monomers is relatively close to each other, the temperature difference between the battery monomers can be increased due to heat generated in the operation process of the equalization module, and the consistency of the battery monomers is affected.
Disclosure of Invention
The utility model mainly aims to provide a heat dissipation device, a battery management system and a battery pack for a battery module balancing module, which can actively dissipate heat of the balancing module, so that the problem that the consistency of battery monomers is affected due to the fact that the temperature difference among the battery monomers is increased due to heat generated in the operation process of the balancing module is solved.
In order to achieve the above object, according to an aspect of the present utility model, there is provided a heat dissipation device for a battery module balancing module, comprising: the heat dissipation structure comprises heat dissipation fins arranged on at least one side of the equalization module, and the heat dissipation fins are used for dissipating heat of the equalization module; the liquid cooling device comprises a liquid cooling pipe, and the heat dissipation structure is configured to be in contact with the liquid cooling pipe so as to transfer heat generated by the balancing module to the liquid cooling pipe.
Further, the number of the cooling fins is plural, the plurality of cooling fins are arranged along the circumferential direction of the equalization module and are connected with the equalization module, and a part of the plurality of cooling fins can be in contact with the liquid cooling pipe.
Further, a plurality of radiating fins are connected end to end in sequence to enclose into the accommodation space capable of accommodating the equalization module.
Further, the thickness of the heat sink is 2mm to 4mm.
Further, the liquid cooling pipe comprises a liquid inlet pipe and a liquid outlet pipe, and the heat dissipation structure is in contact with the liquid inlet pipe or the liquid outlet pipe.
According to another aspect of the present utility model, there is provided a battery management system including: the battery module consists of at least two battery monomers which are connected in series or in parallel; the balancing module is electrically connected with the battery module, and the balancing module and the battery module are respectively positioned at two sides of the liquid cooling pipe; and the heat dissipation device for the battery module balancing module.
Further, the quantity of battery module is a plurality of, and the liquid cooling pipe includes feed liquor pipe and drain pipe, and the feed liquor pipe is connected and encloses into rectangular region with the drain pipe, and a plurality of battery module intervals set up in rectangular region, and balanced module sets up outside rectangular region.
Further, a plurality of battery modules are arranged in rows and columns along the first direction and the second direction, the radiating fin is located on one side of the liquid cooling pipe, which is away from the battery modules, and a gap is formed between the battery modules and the liquid cooling pipe.
Further, the number of the equalization modules and the number of the heat dissipation structures are two, the equalization modules and the heat dissipation structures are correspondingly arranged, the two equalization modules are symmetrically arranged on two sides of the liquid cooling device along the first direction, one of the two heat dissipation structures is in contact with the liquid inlet pipe, and the other of the two heat dissipation structures is in contact with the liquid outlet pipe.
According to another aspect of the present utility model, there is provided a battery pack including: a case; the battery management system described above; the battery management system is mounted in the case.
By applying the technical scheme of the utility model, the heat dissipation structure and the liquid cooling pipe are arranged, the heat dissipation structure comprises the heat dissipation plate, and the heat dissipation plate is in contact with the liquid cooling pipe because the heat dissipation plate is in contact with the liquid cooling pipe, so that the heat generated by the balancing module during operation can be transferred to the liquid cooling pipe by the heat dissipation plate, and the liquid cooling pipe is internally provided with circulating low-temperature liquid, so that rapid heat dissipation can be realized. Compared with the natural heat dissipation mode in the prior art, the heat dissipation mode can realize the rapid heat dissipation of the equalization module, and prevent the heat generated by the equalization module from increasing the temperature difference between the battery monomers and affecting the consistency of the battery monomers.
Drawings
The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the utility model.
In the drawings:
fig. 1 shows a schematic structure of a battery pack according to an embodiment of the present utility model.
Wherein the above figures include the following reference numerals:
10. an equalization module; 20. a heat sink; 30. a liquid-cooled tube; 31. a liquid inlet pipe; 32. a liquid outlet pipe; 40. a battery module; 50. a box body.
Detailed Description
It should be noted that, without conflict, the embodiments of the present utility model and features of the embodiments may be combined with each other. The utility model will be described in detail below with reference to the drawings in connection with embodiments.
As shown in fig. 1, the present utility model provides a heat sink for a battery module balancing module. The heat dissipating device includes: the heat dissipation structure comprises a heat dissipation fin 20 arranged on at least one side of the equalization module 10, wherein the heat dissipation fin 20 is used for dissipating heat of the equalization module 10; the liquid cooling device comprises a liquid cooling pipe 30, and the heat dissipation structure is configured to be capable of contacting with the liquid cooling pipe 30 so as to transfer heat generated by the equalization module 10 to the liquid cooling pipe 30.
In this embodiment, the balancing module 10 includes a resistor, where the resistor is connected in parallel with the battery cells to be balanced, and when the voltage of the battery rises to a certain value due to charging, the resistor can release the surplus electric quantity in the form of heat energy, so as to realize balancing among the battery cells. The battery module 40 includes a plurality of battery cells connected in series or in parallel. The heat dissipation device of the equalization module for the battery module of the embodiment comprises the heat dissipation fin 20 and the liquid cooling tube 30, wherein the heat dissipation fin 20 can be adhered to the equalization module 10 through the heat conduction glue, and the heat dissipation fin 20 can transfer heat generated during the operation of the equalization module 10 to the liquid cooling tube 30 due to the contact between the heat dissipation fin 20 and the liquid cooling tube 30, and low-temperature liquid capable of circularly flowing is arranged in the liquid cooling tube 30, so that rapid heat dissipation can be realized. Compared with the natural heat dissipation mode in the prior art, the heat dissipation mode can realize rapid heat dissipation of the equalization module 10, and prevent heat generated by the equalization module 10 from increasing temperature difference among the battery cells and affecting consistency of the battery cells.
In an embodiment not shown in the drawings, the liquid cooling device further comprises a water pump and a water tank, the water tank is used for storing cooling liquid, the water pump is connected with the liquid cooling pipe 30, and the liquid in the liquid cooling pipe 30 circularly flows in the liquid cooling pipe 30 under the action of the water pump.
As shown in fig. 1, in one embodiment of the present utility model, the number of the heat sinks 20 is plural, the plurality of heat sinks 20 are disposed along the circumferential direction of the equalization module 10 and connected to the equalization module 10, and a part of the plurality of heat sinks 20 can be in contact with the liquid cooling pipe 30.
In this embodiment, the plurality of cooling fins 20 are disposed along the circumference of the equalization module 10, and the cooling fins 20 can be adhered to the equalization module 10 by heat conducting glue, wherein a part of cooling fins 20 are not in contact with the liquid cooling tube 30, and only the cooling fins 20 are used for cooling the equalization module 10, a part of cooling fins 20 are in contact with the liquid cooling tube 30, at this time, a part of heat generated by the equalization module 10 is cooled by the cooling fins 20, and a part of heat is transferred to the liquid cooling tube 30 by the cooling fins 20 to realize cooling, so that compared with the cooling fins 20 alone, the cooling efficiency can be improved by the cooling mode, and the cooling effect is better.
As shown in fig. 1, in one embodiment of the present utility model, a plurality of heat sinks 20 are connected end to end in sequence to define a receiving space capable of receiving the equalization module 10.
In this embodiment, the heat dissipation fins 20 are sequentially connected end to enclose the equalization module 10 and isolate the equalization module 10 from the battery module 40, so as to slow down the diffusion speed of the heat generated by the equalization module 10 and reduce the influence of the heat generated by the equalization module 10 on the battery module 40.
In one embodiment of the present utility model, as shown in FIG. 1, the heat sink 20 has a thickness of 2mm to 4mm.
Through above-mentioned setting, can guarantee the radiating effect, can also practice thrift the cost, reduce the occupation of installation space.
As shown in fig. 1, in one embodiment of the present utility model, the liquid cooling tube 30 includes a liquid inlet tube 31 and a liquid outlet tube 32, and the heat dissipation structure is in contact with the liquid inlet tube 31 or the liquid outlet tube 32.
In this embodiment, since the positions of the liquid inlet pipe 31 and the liquid outlet pipe 32 are different, the staff can make the heat dissipation structure contact with the liquid inlet pipe 31 or contact with the liquid outlet pipe 32 as required, so that the applicability is higher.
As shown in fig. 1, according to another aspect of the present utility model, there is provided a battery management system including: a battery module 40 composed of at least two battery cells connected in series or parallel; the balancing module 10 is electrically connected with the battery module 40, and the balancing module 10 and the battery module 40 are respectively positioned at two sides of the liquid cooling pipe 30; and a heat sink of the balancing module 10 for the battery module 40 as described above.
In this embodiment, the equalization module 10 and the battery module 40 are respectively located at two sides of the liquid cooling tube 30, and the liquid cooling tube 30 can not only dissipate heat of the equalization module 10, but also dissipate heat of the battery module 40. Each balancing module 10 is provided with a heat dissipating device corresponding to the position where the balancing module is located, and the heat dissipating device of the battery management system is identical to the technical scheme and the technical effect of the heat dissipating device, and is not described herein again.
As shown in fig. 1, in one embodiment of the present utility model, the number of the battery modules 40 is plural, the liquid cooling tube 30 includes a liquid inlet tube 31 and a liquid outlet tube 32, the liquid inlet tube 31 is connected with the liquid outlet tube 32 and encloses a rectangular area, the plurality of battery modules 40 are disposed in the rectangular area at intervals, and the equalization module 10 is disposed outside the rectangular area. The plurality of battery modules 40 are arranged in rows and columns along the first direction and the second direction, the cooling fin 20 is located on one side of the liquid cooling tube 30, which is away from the battery modules 40, and a gap is formed between the battery modules 40 and the liquid cooling tube 30.
In the present embodiment, a plurality of battery modules 40 are provided at intervals to reduce the influence of heat generated from the battery modules 40 on each other. The battery module 40 and the liquid cooling tube 30 have a gap therebetween, so that a certain distance can be maintained between the cooling fin 20 and the battery module 40, heat generated by the equalization module 10 is prevented from being transferred to the battery module 40 through the cooling fin 20, and the temperature difference between the battery cells is increased.
In addition, a plurality of battery modules 40 are arranged in the rectangular area, and the radiating fins 20 and the balancing module 10 are arranged outside the rectangular area, namely, the battery modules 40, the radiating fins 20 and the balancing module 10 are located in different areas, so that the radiating fins 20 are convenient to install or replace, and the problem of scratch and scratch on the battery modules 40 in the rectangular area caused by the process of installing or replacing the radiating fins 20 can be avoided.
As shown in fig. 1, in one embodiment of the present utility model, two equalization modules 10 and heat dissipation structures are provided, where the equalization modules 10 and the heat dissipation structures are disposed correspondingly, the two equalization modules 10 are symmetrically disposed on two sides of the liquid cooling device along the first direction, one of the two heat dissipation structures is in contact with the liquid inlet pipe 31, and the other of the two heat dissipation structures is in contact with the liquid outlet pipe 32.
In this embodiment, two equalization modules 10 can be connected with the battery modules 40 at different positions to realize equalization of the battery cells, and the positions of the equalization modules 10 are respectively provided with a heat dissipation structure corresponding to each other, and the heat dissipation structures are in contact with the liquid cooling pipes 30 so as to transfer the heat generated by the equalization modules 10 to the liquid cooling pipes 30, thereby realizing rapid heat dissipation of the equalization modules 10, preventing the heat generated by the equalization modules 10 from increasing the temperature difference between the battery cells and affecting the consistency of the battery cells.
In an embodiment not shown in the drawings, the battery management system further comprises a collection module for monitoring the voltage, current and temperature of the battery cells. The equalization module 10 and the acquisition module are integrated on one circuit board, compared with the prior art that the equalization module 10 and the main control board of the battery management system are integrated together, the volume of the equalization module 10 and the acquisition module integrated together is relatively small, the equalization module 10 and the acquisition module are convenient to arrange and install, and meanwhile, the influence of heat generated by the equalization module 10 on the main control board can be avoided.
According to another aspect of the present utility model, there is provided a battery pack including: a case 50; the battery management system described above; the battery management system is mounted within the case 50.
In this embodiment, the heat dissipation device of the battery management system of the battery pack is identical to the technical scheme and the technical effect of the battery management system described above, and will not be described here again.
From the above description, it can be seen that the above-described embodiments of the present utility model achieve the following technical effects: the heat dissipation structure comprises a heat dissipation fin, and the heat dissipation fin is in contact with the liquid cooling pipe, so that the heat generated during the operation of the balancing module can be transferred to the liquid cooling pipe by the heat dissipation fin, and the liquid cooling pipe is internally provided with circulating low-temperature liquid, so that rapid heat dissipation can be realized. Compared with the natural heat dissipation mode in the prior art, the heat dissipation mode can realize the rapid heat dissipation of the equalization module, and prevent the heat generated by the equalization module from increasing the temperature difference between the battery monomers and affecting the consistency of the battery monomers.
It will be apparent that the embodiments described above are merely some, but not all, embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the present utility model without making any inventive effort, shall fall within the scope of the present utility model.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments in accordance with the present application. As used herein, the singular is also intended to include the plural unless the context clearly indicates otherwise, and furthermore, it is to be understood that the terms "comprises" and/or "comprising" when used in this specification are taken to specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof.
The above description is only of the preferred embodiments of the present utility model and is not intended to limit the present utility model, but various modifications and variations can be made to the present utility model by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.
Claims (10)
1. A heat sink for a battery module balancing module, comprising:
the heat dissipation structure comprises heat dissipation fins (20) arranged on at least one side of the equalization module (10), wherein the heat dissipation fins (20) are used for dissipating heat of the equalization module (10);
the liquid cooling device comprises a liquid cooling pipe (30), and the heat radiating structure is configured to be capable of being in contact with the liquid cooling pipe (30) so as to transfer heat generated by the balancing module (10) to the liquid cooling pipe (30).
2. The heat dissipating device for an equalization module of a battery module according to claim 1, wherein the number of said heat dissipating fins (20) is plural, a plurality of said heat dissipating fins (20) are provided along a circumferential direction of said equalization module (10) and are connected to said equalization module (10), and a part of a plurality of said heat dissipating fins (20) can be brought into contact with said liquid cooling pipe (30).
3. The heat dissipation device for the battery module balancing module according to claim 2, wherein a plurality of the heat dissipation fins (20) are connected end to end in sequence to enclose an accommodating space capable of accommodating the balancing module (10).
4. The heat sink for a battery module balancing module according to any one of claims 1 to 3, wherein the thickness of the heat sink (20) is 2mm to 4mm.
5. A heat sink for a battery module balancing module according to any one of claims 1 to 3, characterized in that the liquid cooling pipe (30) comprises a liquid inlet pipe (31) and a liquid outlet pipe (32), the heat dissipating structure being in contact with the liquid inlet pipe (31) or the liquid outlet pipe (32).
6. A battery management system, comprising:
a battery module (40) composed of at least two battery cells connected in series or in parallel;
the balancing module (10) is electrically connected with the battery module (40), and the balancing module (10) and the battery module (40) are respectively positioned at two sides of the liquid cooling pipe (30); and
the heat sink for a battery module balancing module according to any one of claims 1 to 5.
7. The battery management system according to claim 6, wherein the number of the battery modules (40) is plural, the liquid cooling pipe (30) includes a liquid inlet pipe (31) and a liquid outlet pipe (32), the liquid inlet pipe (31) is connected with the liquid outlet pipe (32) and encloses a rectangular area, the plurality of battery modules (40) are arranged in the rectangular area at intervals, and the equalization module (10) is arranged outside the rectangular area.
8. The battery management system of claim 7, wherein a plurality of the battery modules (40) are arranged in rows and columns in a first direction and a second direction, the heat sink (20) is located on a side of the liquid cooling pipe (30) facing away from the battery modules (40), and a gap is provided between the battery modules (40) and the liquid cooling pipe (30).
9. The battery management system according to claim 7, wherein the number of the equalization modules (10) and the number of the heat dissipation structures are two, the equalization modules (10) and the heat dissipation structures are arranged correspondingly, the two equalization modules (10) are symmetrically arranged on two sides of the liquid cooling device along the first direction, one of the two heat dissipation structures is in contact with the liquid inlet pipe (31), and the other of the two heat dissipation structures is in contact with the liquid outlet pipe (32).
10. A battery pack, comprising:
a case (50);
the battery management system according to any one of claims 6 to 9;
the battery management system is mounted within the housing (50).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321834635.2U CN220569746U (en) | 2023-07-12 | 2023-07-12 | Heat dissipation device for battery module balancing module, battery management system and battery pack |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321834635.2U CN220569746U (en) | 2023-07-12 | 2023-07-12 | Heat dissipation device for battery module balancing module, battery management system and battery pack |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220569746U true CN220569746U (en) | 2024-03-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321834635.2U Active CN220569746U (en) | 2023-07-12 | 2023-07-12 | Heat dissipation device for battery module balancing module, battery management system and battery pack |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220569746U (en) |
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2023
- 2023-07-12 CN CN202321834635.2U patent/CN220569746U/en active Active
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