CN220086189U - Battery pack and energy storage device - Google Patents
Battery pack and energy storage device Download PDFInfo
- Publication number
- CN220086189U CN220086189U CN202223356814.8U CN202223356814U CN220086189U CN 220086189 U CN220086189 U CN 220086189U CN 202223356814 U CN202223356814 U CN 202223356814U CN 220086189 U CN220086189 U CN 220086189U
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- liquid
- liquid inlet
- cooling plate
- battery pack
- liquid outlet
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- 238000004146 energy storage Methods 0.000 title claims abstract description 18
- 239000007788 liquid Substances 0.000 claims abstract description 193
- 238000001816 cooling Methods 0.000 claims abstract description 58
- 239000000110 cooling liquid Substances 0.000 claims abstract description 11
- 230000009286 beneficial effect Effects 0.000 abstract description 5
- 230000005611 electricity Effects 0.000 abstract description 3
- 238000009434 installation Methods 0.000 abstract description 2
- 230000000694 effects Effects 0.000 description 4
- 230000008901 benefit Effects 0.000 description 3
- 230000004308 accommodation Effects 0.000 description 2
- 239000002826 coolant Substances 0.000 description 2
- 238000007726 management method Methods 0.000 description 2
- 206010011469 Crying Diseases 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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- Battery Mounting, Suspending (AREA)
Abstract
The utility model provides a battery pack and energy storage equipment, wherein a liquid cooling plate is arranged on a bottom plate of the battery pack, and a module accommodating area and an electric component accommodating area are arranged in the battery pack; the liquid cooling plate is connected with the battery module in the module accommodating area; the liquid cooling plate comprises a liquid cooling plate body with a liquid inlet and a liquid outlet, and a liquid cooling flow passage communicated with the liquid inlet and the liquid outlet is arranged on the liquid cooling plate; the liquid inlet and the liquid outlet are arranged at one end of the liquid cooling plate body, which is close to each liquid inlet main runner, and are positioned in the electric component accommodating area; the cooling liquid flow channel comprises a plurality of liquid inlet main flow channels and liquid outlet main flow channels, each liquid inlet main flow channel evenly flows out of a plurality of liquid inlet branch flow channels, and each liquid inlet branch flow channel is converged to a flow collecting flow channel communicated with the liquid outlet main flow channel. The battery pack disclosed by the utility model is beneficial to the arrangement and installation of the battery module and the electric parts in different areas, so that electricity and heat can be effectively separated, and the battery module can be uniformly cooled, so that the damage probability of the electric elements can be reduced when the electric core is out of control.
Description
Technical Field
The utility model relates to the technical field of vehicle parts, in particular to a battery pack. The utility model also relates to energy storage equipment provided with the battery pack.
Background
The liquid cooling plate is an important component of the energy storage battery pack. At present, the common runner form of liquid cooling board is the series connection form to only have a passageway, this can cause the battery temperature at the liquid cooling board water inlet low, and the battery temperature at the liquid cooling board delivery port is high, and this can cause the condition that whole battery package difference in temperature is big, even the condition that the difference in temperature is great appears in single package. For an energy storage container, generally, at least 48 battery packs are formed in one energy storage container, the temperature difference of each battery pack is enlarged to the whole system, the temperature difference of the whole system is larger, the cycle life of the whole system is reduced due to the large temperature difference, and the income of users is reduced.
On the other hand, use quick connector, bellows in the liquid cooling battery package, be connected with the metal joint outside the battery package, owing to need artifical grafting, there is the insecure hidden danger of plug, there is the risk of weeping in joint department. In order to avoid such risks, the critical dimensions of the liquid-cooled joint are required to be restrained, so that the material processing cost is increased, higher requirements are also required to be put forward for operators, and the joint is required to be rechecked after being pressed, so that the working time of the workers is increased; after the plugging, whether the waterway is completely sealed or not needs to be checked, a set of working procedures is added, the working time of workers is increased, and the cost is increased.
Disclosure of Invention
In view of the above, the present utility model aims to propose a battery pack so as to effectively separate electricity and heat and reduce the probability of damaging electrical components.
In order to achieve the above purpose, the technical scheme of the utility model is realized as follows:
a liquid cooling plate is arranged on a bottom plate of the battery pack, and a module accommodating area and an electric component accommodating area are arranged in the battery pack;
the liquid cooling plate is connected with the battery module in the module accommodating area; the liquid cooling plate comprises a liquid cooling plate body with a liquid inlet and a liquid outlet, and a cooling liquid flow passage which is communicated with the liquid inlet and the liquid outlet is arranged on the liquid cooling plate; the liquid inlet and the liquid outlet are arranged at one end of the liquid cooling plate body, which is close to each liquid inlet main runner; the liquid inlet and the liquid outlet are positioned in the electric component accommodating area;
the cooling liquid flow channels comprise a plurality of liquid inlet main flow channels communicated with the liquid inlet and liquid outlet main flow channels communicated with the liquid outlet, a plurality of liquid inlet branch flow channels are evenly distributed and flow out of each liquid inlet main flow channel, each liquid inlet branch flow channel is converged to a current collecting flow channel, and the current collecting flow channels are communicated with the liquid outlet main flow channels.
Further, each liquid inlet main runner is located at one end of the liquid cooling plate body, the current collecting runner is located at the other end of the liquid cooling plate body, and each liquid inlet branch runner is located between the liquid inlet main runner and the current collecting runner, and forms a cooling zone.
Further, a liquid inlet pipe is welded at the liquid inlet, and/or a liquid outlet pipe is welded at the liquid outlet.
Furthermore, a rectangular frame is arranged on the bottom plate, so that a containing cavity is formed, a cross beam connected with the frame is arranged in the containing cavity, and the cross beam divides the containing cavity into the module containing area and the electric component containing area.
Further, a longitudinal beam is arranged in the module accommodating area, and is connected with the cross beam and the frame to divide the module accommodating area into a plurality of modules.
Compared with the prior art, the utility model has the following advantages:
according to the battery pack, the liquid cooling plate is connected with the battery module in the module accommodating area, and the cooling liquid flow channels in the liquid cooling plate are optimized, so that cooling liquid can flow into the collecting flow channels along the liquid inlet main flow channels and the liquid inlet branch flow channels and flow out of the liquid collecting flow channels through the liquid outlet main flow channels, a multi-stage parallel flow channel mode can be realized, the temperature uniformity of the battery module can be improved, and the temperature difference among battery units is reduced. Meanwhile, the battery module and the electric components are arranged and installed in different areas, so that electricity and heat are effectively separated, and the damage probability of the electric components can be reduced when the electric core is out of control.
In addition, the crossbeam that sets up can separate battery module and electrical component and liquid inlet and the liquid outlet of liquid cooling board, and when the liquid cooling board appears leaking, can prevent that liquid from getting into the module and acceping the district, and do benefit to and avoid taking place problem such as battery short circuit. And liquid inlet and liquid outlet department of liquid cooling board adopts welded feed liquor pipe and drain pipe, compares in prior art and adopts quick connector or bellows isotructure, more does benefit to the leakage that prevents liquid.
The utility model also provides energy storage equipment, and a plurality of battery packs are arranged in the energy storage equipment.
By adopting the battery pack, the energy storage device can reduce the temperature difference of the whole system of the energy storage device, thereby being beneficial to prolonging the service life of the energy storage device.
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 is a schematic diagram of a liquid cooling plate according to an embodiment of the present utility model;
fig. 2 is a schematic view illustrating a part of a structure of a battery pack according to an embodiment of the present utility model;
FIG. 3 is a schematic view of the structure of the lower housing according to the embodiment of the utility model;
reference numerals illustrate:
1. a liquid cooling plate; 100. a liquid cooling plate body; 101. a first liquid inlet main flow passage; 1011. a first liquid inlet branch flow passage; 102. a second liquid inlet main flow passage; 1021. a second liquid inlet branch flow passage; 103. a collecting flow channel; 104. a liquid outlet main flow channel;
2. a frame; 201. a frame; 202. a cross beam; 203. a longitudinal beam;
3. a liquid inlet pipe; 4. a liquid outlet pipe; 5. a battery module;
10. a liquid inlet; 20. a liquid outlet; 30. a module accommodating area; 40. an electric component accommodation area.
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.
In the description of the present utility model, it should be noted that, if terms indicating an orientation or positional relationship such as "upper", "lower", "inner", "outer", etc. are presented, they are based on the orientation or positional relationship shown in the drawings, only for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the apparatus or element to be referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and the like, if any, are also used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
Furthermore, in the description of the present utility model, the terms "mounted," "connected," and "connected," are to be construed broadly, unless otherwise specifically defined. For example, the connection can be fixed connection, detachable connection or integrated connection; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art in combination with specific cases.
The utility model will be described in detail below with reference to the drawings in connection with embodiments.
The embodiment relates to a liquid cooling plate, which has a good temperature equalizing effect, can uniformly cool a battery module and reduce the temperature difference between battery units.
In the overall structure, as shown in fig. 1, the liquid cooling plate of the present embodiment includes a liquid cooling plate body 100 having a liquid inlet 10 and a liquid outlet 20, and a cooling liquid flow channel communicating the liquid inlet 10 and the liquid outlet 20 is provided on the liquid cooling plate 1. The cooling liquid flow channel comprises a plurality of liquid inlet main flow channels communicated with the liquid inlet 10 and a liquid outlet main flow channel 104 communicated with the liquid outlet 20, wherein each liquid inlet main flow channel evenly flows out of a plurality of liquid inlet branch flow channels, each liquid inlet branch flow channel is converged to a current collecting flow channel 103, and the current collecting flow channel 103 is communicated with the liquid outlet main flow channel 104.
In the structure, through the optimization to the coolant flow channel of the liquid cooling plate 1, the multi-stage parallel flow channel mode can be realized, so that the flow is distributed more uniformly, and the battery module can be cooled uniformly, thereby being beneficial to reducing the temperature difference among all battery units in the battery module.
In detail, as shown in fig. 1, as a preferred embodiment, the liquid cooling plate 1 is provided with a first liquid inlet main channel 101 and a second liquid inlet main channel 102 communicating with the liquid inlet 10. And the first liquid inlet main flow passage 101 branches into two first liquid inlet branch flow passages 1011, and the second liquid inlet main flow passage 102 branches into two second liquid inlet branch flow passages 1021. And the two first liquid inlet branch flow passages 1011 and the two second liquid inlet branch flow passages 1021 are converged to the collecting flow passage 103 and are communicated with the liquid outlet main flow passage 104.
It should be noted that, in this embodiment, the number of the liquid inlet main channels and the number of the liquid inlet branch channels that each main channel branches off may be two or more, so that each liquid inlet main channel is connected in parallel and each liquid inlet branch channel is connected in parallel.
In addition, in this embodiment, each liquid inlet main channel is disposed specifically at one end of the liquid cooling plate body 100, the current collecting channel 103 is specifically at the other end of the liquid cooling plate body 100, and each liquid inlet branch channel is specifically located between the liquid inlet main channel and the current collecting channel 103, and forms a cooling area. Therefore, the cooling effect is more uniform in the range of the cooling area corresponding to each branch flow passage, and the uniform temperature of the battery module is improved.
Meanwhile, the liquid inlet 10 and the liquid outlet 20 are arranged at one end of the liquid cooling plate body 100 close to each liquid inlet main runner. This can increase the flow path of the coolant, thereby contributing to further improvement of the cooling effect.
In order to prevent leakage of the liquid in the liquid cooling plate 1, in this embodiment, a liquid inlet pipe 3 is preferably welded at the liquid inlet 10, and a liquid outlet pipe 4 is preferably welded at the liquid outlet 20. In this way, the liquid inlet pipe 3 and the liquid outlet pipe 4 are connected with the liquid cooling plate body 100 in a welding mode, so that the liquid cooling plate is more beneficial to preventing liquid leakage compared with the structures such as quick connectors or corrugated pipes in the prior art.
It should be noted that, in the present embodiment, the liquid inlet pipe 3 may be welded only at the liquid inlet 10, or the liquid outlet pipe 4 may be welded only at the liquid outlet 20, which is also beneficial to preventing leakage of liquid to some extent.
The present embodiment also relates to a battery pack having the liquid cooling plate 1 described above provided therein. The battery pack has a structure as shown in fig. 2, which includes a lower case in which a battery module is accommodated, wherein the battery module includes a plurality of battery cells stacked together. As an implementation form, the lower shell comprises a bottom plate and a rectangular frame 2 fixedly connected to the bottom plate, and the frame 2 and the bottom plate form a containing cavity.
With continued reference to fig. 2 and in conjunction with fig. 3, the liquid cooling plate 1 is specifically disposed on the bottom plate of the battery pack and is connected to the bottom of the battery module 5. In practice, the bottom of the battery module 5 is usually adhered and fixed to the upper surface of the liquid cooling plate 1.
In the present embodiment, the cross member 202 connected to the frame 2 is provided in the housing chamber, and the cross member 202 partitions the housing chamber into the module housing area 30 and the electrical component housing area 40. The liquid inlet 10 and the liquid outlet 20 of the liquid cooling plate 1 are positioned in the electric component accommodating area 40. At this time, the welded liquid inlet pipe 30 and liquid outlet pipe 40 are partially located in the electric component accommodating area 40, and one ends of the liquid inlet pipe 30 and the liquid outlet pipe 40 penetrate through the frame 2 and extend outwards from the battery case, so that connection and installation of external pipelines are facilitated.
In addition, in order to facilitate the fixing effect of the battery module 5 and facilitate the accommodation of a plurality of battery modules, in this embodiment, a longitudinal beam 203 is disposed in the module accommodating area 30, and the longitudinal beam 203 is connected with the cross beam 202 and the frame 2, so as to divide the module accommodating area 30 into a plurality of modules, so that a plurality of battery modules are accommodated in the battery lower housing, and the energy density of the battery pack is improved.
In addition, the electrical component housing area 40 may be used for housing and mounting one or more of a connection line row, a signal acquisition assembly, a BMS (Battery Management System, a battery management system), and the like. In addition, other structures of the battery pack, such as the upper cover and the electric device, may refer to the existing mature technology, and will not be described herein.
In specific use, the cooling liquid flows into the first liquid inlet main runner 101 and the second liquid inlet main runner 102 from the liquid inlet 10, then flows into the two first liquid inlet branch runners 1011 and the two second liquid inlet branch runners 1021 from the first liquid inlet main runner 101 and the second liquid inlet main runner 102 in a split manner, and then the cooling liquid in each of the first liquid inlet branch runners 1011 and the second liquid inlet branch runners 1021 flows into the collecting runner 103 and flows out from the liquid outlet main runner to realize heat exchange.
In addition, the embodiment also relates to an energy storage device, wherein a plurality of battery packs are arranged in the energy storage device.
The temperature difference of the whole system of the energy storage device can be reduced by adopting the battery pack, so that the service life of the energy storage device is prolonged.
The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, alternatives, and improvements that fall within the spirit and scope of the utility model.
Claims (6)
1. A battery pack, characterized in that:
a liquid cooling plate (1) is arranged on the bottom plate of the battery pack, and a module accommodating area (30) and an electric part accommodating area (40) are arranged in the battery pack;
the liquid cooling plate (1) is connected with a battery module (5) in the module accommodating area (30); the liquid cooling plate (1) comprises a liquid cooling plate body (100) with a liquid inlet (10) and a liquid outlet (20), and a cooling liquid flow passage which is communicated with the liquid inlet (10) and the liquid outlet (20) is arranged on the liquid cooling plate (1); the liquid inlet (10) and the liquid outlet (20) are arranged at one end, close to each liquid inlet main runner, of the liquid cooling plate body (100); the liquid inlet (10) and the liquid outlet (20) are positioned in the electric component accommodating area (40);
the cooling liquid flow channel comprises a plurality of liquid inlet main flow channels communicated with the liquid inlet (10) and liquid outlet main flow channels (104) communicated with the liquid outlet (20), the liquid inlet main flow channels uniformly flow out of a plurality of liquid inlet branch flow channels, the liquid inlet branch flow channels are converged to a current collecting flow channel (103), and the current collecting flow channel (103) is communicated with the liquid outlet main flow channels (104).
2. The battery pack according to claim 1, wherein:
each liquid inlet main runner is positioned at one end of the liquid cooling plate body (100), the current collecting runner (103) is positioned at the other end of the liquid cooling plate body (100), and each liquid inlet branch runner is positioned between the liquid inlet main runner and the current collecting runner (103) and forms a cooling zone.
3. The battery pack according to claim 1, wherein:
the liquid inlet (10) is welded with a liquid inlet pipe (3), and/or the liquid outlet (20) is welded with a liquid outlet pipe (4).
4. The battery pack according to any one of claims 1 to 3, wherein
The base plate is provided with a rectangular frame (2) and is provided with a containing cavity, a cross beam (202) connected with the frame (2) is arranged in the containing cavity, and the cross beam (202) divides the containing cavity into the module containing area (30) and the electric component containing area (40).
5. The battery pack according to claim 4, wherein:
the module accommodating area (30) is internally provided with a longitudinal beam (203), and the longitudinal beam (203) is connected with the cross beam (202) and the frame (2) to divide the module accommodating area (30) into a plurality of modules.
6. An energy storage device, characterized by:
the energy storage device is provided therein with a plurality of battery packs according to any one of claims 1 to 5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223356814.8U CN220086189U (en) | 2022-12-14 | 2022-12-14 | Battery pack and energy storage device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223356814.8U CN220086189U (en) | 2022-12-14 | 2022-12-14 | Battery pack and energy storage device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220086189U true CN220086189U (en) | 2023-11-24 |
Family
ID=88823489
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223356814.8U Active CN220086189U (en) | 2022-12-14 | 2022-12-14 | Battery pack and energy storage device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220086189U (en) |
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2022
- 2022-12-14 CN CN202223356814.8U patent/CN220086189U/en active Active
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