CN219321437U - Battery pack heat dissipation system - Google Patents
Battery pack heat dissipation system Download PDFInfo
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- CN219321437U CN219321437U CN202223589149.7U CN202223589149U CN219321437U CN 219321437 U CN219321437 U CN 219321437U CN 202223589149 U CN202223589149 U CN 202223589149U CN 219321437 U CN219321437 U CN 219321437U
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- 230000017525 heat dissipation Effects 0.000 title claims abstract description 69
- 238000001816 cooling Methods 0.000 claims abstract description 14
- 230000004308 accommodation Effects 0.000 claims description 11
- 238000004891 communication Methods 0.000 claims description 11
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 abstract description 22
- 229910052744 lithium Inorganic materials 0.000 abstract description 22
- 238000000034 method Methods 0.000 abstract description 7
- 238000009529 body temperature measurement Methods 0.000 description 10
- 238000010586 diagram Methods 0.000 description 7
- 238000002485 combustion reaction Methods 0.000 description 6
- 230000002269 spontaneous effect Effects 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 4
- 230000008878 coupling Effects 0.000 description 3
- 238000010168 coupling process Methods 0.000 description 3
- 238000005859 coupling reaction Methods 0.000 description 3
- 239000007769 metal material Substances 0.000 description 3
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 230000001788 irregular Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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Abstract
The application provides a group battery cooling system relates to the relevant technical field of batteries, can improve the security of lithium cell group. The battery pack heat dissipation system includes: the shell is provided with a first air inlet and a first air outlet; the first battery pack is arranged in the shell, the first battery pack and the shell are enclosed to form a closed cold channel and a first closed hot channel, one end of the closed cold channel is communicated with the first air inlet, and one end of the first closed hot channel is communicated with the first air outlet; a first accommodating space for accommodating the first battery cell group is arranged in the first battery pack, and the first accommodating space is communicated with the closed cold channel and the first closed hot channel; the first gas driving piece is arranged outside the shell, and an air outlet of the first gas driving piece is communicated with the first air inlet. The embodiment of the application is used in the heat dissipation process of the battery pack.
Description
Technical Field
The application relates to the technical field of batteries, in particular to a battery pack heat dissipation system.
Background
At present, a heat dissipation technology can be used on the shell of the lithium battery pack, for example, a material with good heat conductivity is used as the shell, fins are added on the shell, and the like, so that the heat dissipation capacity of the shell is increased, the heat dissipation capacity of the lithium battery pack can be improved, and the heat dissipation efficiency of the internal battery cell of the lithium battery pack can be improved, so that the situation that the internal battery cell of the lithium battery pack is out of control is avoided.
However, since the prior art uses the heat dissipation technology on the casing of the lithium battery pack, the heat dissipation efficiency of the battery cell far from the casing in the internal battery cell of the lithium battery pack may be still low, and thus, the thermal runaway of the internal battery cell of the lithium battery pack may occur, which may result in the spontaneous combustion of the lithium battery pack, and thus, the safety of the lithium battery pack is poor.
Disclosure of Invention
The application provides a group battery cooling system, can improve the security of lithium cell group.
In order to achieve the above purpose, the present application adopts the following technical scheme:
in a first aspect, the present application provides a battery pack heat dissipation system comprising: the shell is provided with a first air inlet and a first air outlet; the first battery pack is arranged in the shell, the first battery pack and the shell are enclosed to form a closed cold channel and a first closed hot channel, one end of the closed cold channel is communicated with the first air inlet, and one end of the first closed hot channel is communicated with the first air outlet; a first accommodating space for accommodating the first battery cell group is arranged in the first battery pack, and the first accommodating space is communicated with the closed cold channel and the first closed hot channel; the first gas driving piece is arranged outside the shell, and an air outlet of the first gas driving piece is communicated with the first air inlet.
Based on the above technical scheme, the first battery pack and the shell of the battery pack heat dissipation system can enclose into the closed cold channel and the first closed heat channel, and the first accommodating space of the first battery pack accommodating the first battery cell group is communicated with the closed cold channel and the first closed heat channel, so that heat dissipation gas can enter the first accommodating space to dissipate heat of the first battery cell group under the action of the first gas driving piece through the closed cold channel, and the heat dissipation gas can directly enter the shell to dissipate heat of all battery cells in the first battery cell group through the first closed heat channel, so that heat dissipation efficiency of all battery cells of the first battery cell group can be improved, the occurrence of thermal runaway of the first battery cell group can be reduced, the occurrence of spontaneous combustion of the first battery pack can be reduced, and the safety of the battery pack can be improved.
In a first possible implementation manner of the first aspect, the first battery cell group includes at least two first battery cells; the first accommodating space comprises at least two first sub-accommodating spaces, the at least two first sub-accommodating spaces are sequentially arranged between the closed cold channel and the first closed hot channel, and each first sub-accommodating space accommodates one first battery cell; wherein, at least two first sub-accommodation spaces are communicated with the closed cold channel and the closed hot channel.
In a second possible implementation manner of the first aspect, the first wall of the first sub-accommodating space is in communication with the closed cold channel, and the second wall of the first sub-accommodating space is in communication with the first closed hot channel; wherein the first wall and the second wall are disposed opposite.
In a third possible implementation manner of the first aspect, the casing is further provided with a second air outlet; the above-mentioned group battery cooling system still includes: the second battery pack is arranged in the shell, the second battery pack, the first battery pack and the shell are enclosed to form a closed cold channel, the second battery pack and the shell are enclosed to form a second closed hot channel, and one end of the second closed hot channel is communicated with the second air outlet; wherein, a second accommodating space for accommodating a second battery cell group is arranged in the second battery pack, and the second accommodating space is communicated with the closed cold channel and the second closed hot channel; the second battery pack and the first battery pack are both positioned on the same side of the closed cold aisle.
In a fourth possible implementation manner of the first aspect, the second battery cell group includes at least two second battery cells; the second accommodating space comprises at least two second sub-accommodating spaces, the at least two second sub-accommodating spaces are sequentially arranged between the closed cold channel and the second closed hot channel, and each second sub-accommodating space accommodates one second battery cell; wherein, at least two second sub-accommodation spaces are communicated with the closed cold channel and the closed hot channel.
In a fifth possible implementation manner of the first aspect, the first battery pack, the second battery pack, and the closed cold channel enclose a third accommodating space; the third accommodating space is used for accommodating the first gas driving piece.
In a sixth possible implementation manner of the first aspect, the casing is further provided with a third air outlet; the above-mentioned group battery cooling system still includes: the third battery pack is arranged in the shell, the third battery pack, the second battery pack, the first battery pack and the shell are enclosed to form a closed cold channel, the third battery pack and the shell are enclosed to form a third closed hot channel, and one end of the third closed hot channel is communicated with the third air outlet; the third battery pack is internally provided with a third accommodating space for accommodating a third battery cell group, and the third accommodating space is communicated with the closed cold channel and the third closed hot channel; the third battery pack and the second battery pack are located on different sides of the closed cold aisle.
In a seventh possible implementation manner of the first aspect, the casing is further provided with a second air inlet; the above-mentioned group battery cooling system still includes: the second gas driving piece is arranged outside the shell, and an air outlet of the second gas driving piece is communicated with the second air inlet.
In an eighth possible implementation manner of the first aspect, the second gas driving member and the first gas driving member are located on different sides of the closed cold channel; the second gas driving member and the first gas driving member are symmetrically disposed with respect to the closed cold aisle.
In a ninth possible implementation manner of the first aspect, the above battery pack heat dissipation system further includes: at least two temperature measuring members disposed in the housing, the temperature measuring members for measuring a temperature in the housing; and the first gas driving piece is in a working state under the condition that the maximum temperature in the temperatures measured by the at least two temperature measuring pieces is greater than or equal to a preset temperature.
Drawings
Fig. 1 is a schematic structural diagram of a heat dissipation system of a battery pack according to an embodiment of the present application;
fig. 2 is a schematic structural diagram of another battery pack heat dissipation system according to an embodiment of the present disclosure;
fig. 3 is a schematic structural diagram of another battery pack heat dissipation system according to an embodiment of the present disclosure;
fig. 4 is a schematic structural diagram of another battery pack heat dissipation system according to an embodiment of the present disclosure;
fig. 5 is a schematic structural diagram of a battery pack heat dissipation system according to another embodiment of the present disclosure;
fig. 6 is a schematic structural diagram of another battery pack heat dissipation system according to an embodiment of the present disclosure;
fig. 7 is a schematic structural diagram of a battery pack heat dissipation system according to another embodiment of the present disclosure;
wherein: 10-housing, 101-first air inlet, 102-first air outlet, 103-second air inlet, 104-second air outlet, 105-third air outlet, 106-fourth air outlet, 11-first battery pack, 111-first accommodation space, 1111-first sub-accommodation space, 1112-first wall, 1113-second wall, 12-closed cold channel, 13-first closed heat channel, 14-first battery pack, 141-first battery cell, 15-first gas drive, 16-second gas drive, 17-second battery pack, 171-second accommodation space, 1711-second sub-accommodation space, 18-second closed heat channel, 19-second battery pack, 191-second battery cell, 20-drive accommodation space, 21-third battery pack, 22-third closed heat channel, 23-third battery pack, 24-third accommodation space, 25-fourth battery pack, 26-fourth closed heat channel, 27-fourth battery pack, 28-fourth accommodation space, 29-first accommodation space.
Detailed Description
The battery pack heat dissipation system provided in the embodiments of the present application is described in detail below with reference to the accompanying drawings.
The term "and/or" is herein merely an association relationship describing an associated object, meaning that there may be three relationships, e.g., a and/or B, may represent: a exists alone, A and B exist together, and B exists alone.
The terms "first" and "second" and the like in the description and in the drawings are used for distinguishing between different objects or for distinguishing between different processes of the same object and not for describing a particular sequential order of objects.
Furthermore, references to the terms "comprising" and "having" and any variations thereof in the description of the present application are intended to cover a non-exclusive inclusion. For example, a process, method, system, article, or apparatus that comprises a list of steps or elements is not limited to only those listed but may optionally include other steps or elements not listed or inherent to such process, method, article, or apparatus.
It should be noted that, in the embodiments of the present application, words such as "exemplary" or "such as" are used to mean serving as an example, instance, or illustration. Any embodiment or design described herein as "exemplary" or "for example" should not be construed as preferred or advantageous over other embodiments or designs. Rather, the use of words such as "exemplary" or "such as" is intended to present related concepts in a concrete fashion.
In the description of the present application, unless otherwise indicated, the meaning of "a plurality" means two or more.
At present, a heat dissipation technology can be used on the shell of the lithium battery pack, for example, a material with good heat conductivity is used as the shell, fins are added on the shell, and the like, so that the heat dissipation capacity of the shell is increased, the heat dissipation capacity of the lithium battery pack can be improved, and the heat dissipation efficiency of the internal battery cell of the lithium battery pack can be improved, so that the situation that the internal battery cell of the lithium battery pack is out of control is avoided. However, since the prior art uses the heat dissipation technology on the casing of the lithium battery pack, the heat dissipation efficiency of the battery cell far from the casing in the internal battery cell of the lithium battery pack may be still low, and thus, the thermal runaway of the internal battery cell of the lithium battery pack may occur, which may result in the spontaneous combustion of the lithium battery pack, and thus, the safety of the lithium battery pack is poor.
In order to solve the problem of poor safety of a lithium battery pack in the prior art, the application provides a battery pack heat dissipation system, as shown in fig. 1, the battery pack heat dissipation system includes: the shell 10 is provided with a first air inlet 101 and a first air outlet 102; the first battery pack 11 is arranged in the shell 10, the first battery pack 11 and the shell 10 are enclosed into a closed cold channel 12 and a first closed hot channel 13, one end of the closed cold channel 12 is communicated with the first air inlet 101, and one end of the first closed hot channel 13 is communicated with the first air outlet 102; a first accommodating space 111 for accommodating the first battery cell group 14 is arranged in the first battery pack 11, and the first accommodating space 111 is communicated with the closed cold channel 12 and the first closed hot channel 13; the first gas driving member 15 is disposed outside the housing 10, and an air outlet of the first gas driving member 15 is communicated with the first air inlet 101.
Alternatively, in embodiments of the present application, the housing 10 may be made of a metallic material. It can be appreciated that the metal material has better thermal conductivity and compression resistance, so the metal material is selected to prepare the housing 10, so that the compression resistance of the housing 10 can be improved while the heat dissipation efficiency of the battery pack heat dissipation system is improved.
In this embodiment, the first air inlet 101 is configured to communicate with an external environment, so that heat dissipation air can enter the housing 10.
Optionally, in this embodiment of the present application, the shape of the first air inlet 101 may be any of the following: triangle, square, round, oval, irregular, etc.
In this embodiment, the first air outlet 102 is configured to communicate with an external environment, so that the heat dissipation air can be exhausted from the housing 10.
Optionally, in this embodiment of the present application, the shape of the first air outlet 102 may be any of the following: triangle, square, round, oval, irregular, etc. The shape of the first air outlet 102 may be the same as or different from the shape of the first air inlet 101.
Alternatively, in the embodiment of the present application, the first battery pack 11 may be a lithium battery pack. A first accommodation space 111 for accommodating the first battery cell group 14 is provided in the housing of the first battery pack 11.
In the embodiment of the present application, the outer case of the first battery pack 11 may enclose the first closed cold channel 12 and the first closed hot channel 13 with the inner wall of the case 10.
Alternatively, in the present embodiment, the closed cold aisle 12 may be a linear aisle.
Alternatively, in the embodiment of the present application, the first closed thermal channel 13 may be a linear channel.
Alternatively, in the embodiment of the present application, the first cell group 14 may include a plurality of cell groups, and the shape cell groups of the plurality of channels may be disposed in parallel.
Alternatively, in the embodiment of the present application, in the case that the first battery cell group 14 includes a plurality of battery cell groups, the first accommodating space 111 may include a plurality of sub-accommodating spaces, and each sub-accommodating space is used to accommodate one battery cell group.
Alternatively, in the embodiment of the present application, the first gas driving member 15 may be an air pump. It will be appreciated that the first gas driver 15 may drive low temperature gas (i.e., heat dissipating gas) from the external environment to the first inlet 101, so that the heat dissipating gas may dissipate heat from the components within the housing 10.
The first cell group 14 includes a plurality of cell groups as will be exemplified below.
Optionally, in an embodiment of the present application, as shown in fig. 2 in conjunction with fig. 1, the first battery cell group 14 includes at least two first battery cells 141; the first accommodating space 111 includes at least two first sub-accommodating spaces 1111, and the at least two first sub-accommodating spaces 1111 are sequentially disposed between the closed cold channel 12 and the first closed hot channel 13, and each first sub-accommodating space 1111 accommodates one first battery cell 141; wherein at least two first sub-receiving spaces 1111 communicate with the closed cold channel 12, the first closed hot channel 13.
It is understood that the outer walls of at least two first sub-receiving spaces 1111 may be fitted to the closed cold aisle 12 and disposed sequentially in a direction along which the heat dissipation gas flows in the closed cold aisle 12.
Therefore, under the condition that a plurality of first electric cores are arranged, a plurality of sub-accommodating spaces can be arranged, and each word accommodating space accommodates one first electric core, so that the situation that other electric cores are out of control due to the fact that one electric core is out of control is reduced, and the situation that the battery pack is in spontaneous combustion can be reduced.
Alternatively, in a possible implementation manner of the embodiment of the present application, at least two first sub-receiving spaces 1111 may be mutually communicated, and one wall of a first sub-receiving space 1111 of the at least two first sub-receiving spaces 1111 is provided with one opening, and another wall of a last first sub-receiving space 1111 of the at least two first sub-receiving spaces 1111 is provided with another opening, wherein the one opening is in communication with the closed cold channel 12, and the other opening is in communication with the first closed hot channel 13, so that the heat dissipation gas may enter the first sub-receiving space 1111 from the closed cold channel 12, sequentially pass through each first sub-receiving space 1111, and then enter the first closed hot channel 13 from the last first sub-receiving space 1111 and then exit the housing 10.
Alternatively, in another possible implementation of the embodiment of the present application, as shown in fig. 3, for each first sub-accommodation 1111 of the at least two first sub-accommodation 1111, the first wall 1112 of the first sub-accommodation 1111 communicates with the closed cold channel 12, and the second wall 1113 of the first sub-accommodation 1111 communicates with the first closed hot channel 13; wherein the first wall 1112 and the second wall 1113 are disposed opposite.
Further, for each first sub-accommodation space 1111 of the at least two first sub-accommodation spaces 1111, one opening is provided on the first wall 1112 of the first sub-accommodation space 1111, which communicates with the closed cold aisle 12, and another opening is provided on the second wall 1113 of the first sub-accommodation space 1111, which communicates with the first closed hot aisle 13.
Further, the first wall 1112 and the second wall 1113 are parallel, and a projection area of the first wall 1112 on the second wall 1113 is completely coincident with the first wall 1112.
In the present embodiment, the heat dissipation gas may enter each of the first sub-receiving spaces 1111 from the closed cold channel 12, and exit the case 10 after entering the first closed hot channel 13 from each of the first sub-receiving spaces 1111.
Therefore, the two walls of each first sub-accommodating space are respectively communicated with the closed cold channel and the first closed hot channel, so that the heat dissipation gas can enter each first sub-accommodating space respectively through the closed cold channel and enter the first closed hot channel through each first sub-accommodating space, and the heat dissipation gas can be enabled to dissipate heat of each first sub-accommodating space respectively, and therefore the heat dissipation efficiency can be improved.
Of course, in order to further improve the heat dissipation efficiency, a plurality of gas drivers may be provided, as will be exemplified below.
Optionally, in this embodiment, as shown in fig. 4, the casing 10 is further provided with a second air inlet 103; the above-mentioned group battery cooling system still includes: the second gas driving member 16 is disposed outside the housing 10, and an air outlet of the second gas driving member 16 is communicated with the second air inlet 103.
Alternatively, in the embodiment of the present application, the second air driving member 16 may be an air pump. It will be appreciated that the second gas driver 16 may drive low temperature gas (i.e., heat dissipating gas) from the external environment to the second inlet 103, so that the heat dissipating gas may dissipate heat from the components within the housing.
Therefore, the first gas driving member and the second gas driving member can be arranged, so that the flow rate of the heat dissipation gas entering the shell can be increased, and the heat dissipation efficiency can be improved.
Alternatively, in the embodiment of the present application, in connection with fig. 4, the second gas driving member 16 and the first gas driving member 15 are located on different sides of the closed cold channel 12; the second gas driver 16 and the first gas driver 15 are symmetrically arranged with respect to the closed cold aisle 12.
Optionally, in an embodiment of the present application, the above battery pack heat dissipation system further includes: at least two temperature measuring members provided in the housing 10 for measuring a temperature in the housing 10; wherein, in the case that the maximum temperature of the temperatures measured by the at least two temperature measuring members is greater than or equal to the preset temperature, the first gas driving member 15 is in an operating state.
Further, for each of the at least two temperature measuring members, the temperature measuring member may be specifically a thermometer.
Further, at least two temperature measurement members may be disposed at different temperature measurement locations within the housing 10, such that the at least two temperature measurement members may measure temperatures at different temperature measurement locations within the housing 10.
It will be appreciated that the temperatures measured by the at least two temperature measurement members may be different.
In one example, an alarm may be provided in the battery pack heat dissipation system, and in the case that the maximum temperature of the temperatures measured by the at least two temperature measurement members is greater than or equal to the preset temperature, the alarm may sound an alarm to prompt a worker to control the first gas driving member 15 (and/or the second gas driving member 16) to be in an operating state.
In another example, a control module may be disposed in the battery pack heat dissipation system, and the control module may directly control the first gas driving member 15 (and/or the second gas driving member 16) to be in an operating state in case that a maximum temperature among temperatures measured by the at least two temperature measuring members is greater than or equal to a preset temperature.
In this embodiment, if the maximum temperature of the temperatures measured by the at least two temperature measurement elements is greater than or equal to the preset temperature, it is considered that the first cell set 14 may have a thermal runaway condition, and therefore, the first gas driving element 15 (and/or the second gas driving element 16) may be controlled to be in a working state.
Optionally, in this embodiment of the present application, after the first gas driving member 15 (and/or the second gas driving member 16) is controlled to be in the working state, in a case where a maximum temperature of temperatures measured by at least two of the temperature measurement members is less than or equal to a preset value, the first gas driving member 15 (and/or the second gas driving member 16) may be controlled to be in the non-working state.
As can be seen from this, since at least two temperature measurement members may be provided, and the first gas driving member 15 is in the operating state only when the maximum temperature of the temperatures measured by the at least two temperature measurement members is greater than or equal to the preset temperature, rather than being in the operating state all the time, it is possible to reduce the energy consumption of the heat dissipation system of the battery pack while avoiding thermal runaway of the first battery cell.
Based on the above technical scheme, the first battery pack and the shell of the battery pack heat dissipation system can enclose into the closed cold channel and the first closed heat channel, and the first accommodating space of the first battery pack accommodating the first battery cell group is communicated with the closed cold channel and the first closed heat channel, so that heat dissipation gas can enter the first accommodating space to dissipate heat of the first battery cell group under the action of the first gas driving piece through the closed cold channel, and the heat dissipation gas can directly enter the shell to dissipate heat of all battery cells in the first battery cell group through the first closed heat channel, so that heat dissipation efficiency of all battery cells of the first battery cell group can be improved, the occurrence of thermal runaway of the first battery cell group can be reduced, the occurrence of spontaneous combustion of the first battery pack can be reduced, and the safety of the battery pack can be improved.
Of course, the battery pack heat dissipation system may be provided with a plurality of battery packs so that heat can be dissipated for each battery pack by closing the cold aisle 12, as will be exemplified below.
Optionally, in this embodiment, as shown in fig. 5, the casing 10 is further provided with a second air outlet 104; the above-mentioned group battery cooling system still includes: the second battery pack 17 is arranged in the shell 10, the second battery pack 17, the first battery pack 11 and the shell 10 are enclosed to form a closed cold channel 12, the second battery pack 17 and the shell 10 are enclosed to form a second closed hot channel 18, and one end of the second closed hot channel 18 is communicated with the second air outlet 104; wherein, a second accommodating space 171 for accommodating a second battery cell group 19 is arranged in the second battery pack 17, and the second accommodating space 171 is communicated with the closed cold channel 12 and the second closed hot channel 18; the second battery pack 17 and the first battery pack 11 are both located on the same side of the closed cold aisle 12.
Therefore, the second battery pack, the first battery pack and the shell of the battery pack heat dissipation system can be enclosed to form a closed cold channel, the second battery pack and the shell can be enclosed to form a first closed heat channel, and the second accommodating space for accommodating the second battery cell pack in the second battery pack is communicated with the closed cold channel and the second closed heat channel, so that heat dissipation gas can enter the second accommodating space from the closed cold channel to dissipate heat of the second battery cell pack under the action of the first gas driving piece, and the heat dissipation gas is discharged from the shell from the second closed heat channel, namely, the heat dissipation gas can directly enter the shell to dissipate heat of all battery cells in the second battery cell pack, so that the heat dissipation efficiency of all battery cells of the second battery cell pack can be improved, the occurrence of thermal runaway condition of the second battery cell pack can be reduced, and the occurrence of spontaneous combustion condition of the second battery pack can be reduced.
Optionally, in an embodiment of the present application, as shown in fig. 5 and fig. 6, the second battery cell group 19 includes at least two second battery cells 191; the second accommodating space 171 includes at least two second sub-accommodating spaces 1711, where the at least two second sub-accommodating spaces 1711 are sequentially disposed between the closed cold channel 12 and the second closed hot channel 18, and each second sub-accommodating space 1711 accommodates one second electric cell 191; wherein at least two second sub-accommodation spaces 1711 are in communication with the closed cold aisle 12 and the second closed hot aisle 18.
It should be noted that, for the description of the second battery cell 191 and the second sub-accommodating space 1711, reference may be made to the specific appearance of the first battery cell 141 and the first sub-accommodating space 1111 in the above embodiment, and the embodiments of the present application are not repeated here.
Alternatively, in the embodiment of the present application, with reference to fig. 6, the first battery pack 11, the second battery pack 17, and the closed cold channel 12 are enclosed to form the driving accommodating space 20; wherein the drive accommodating space 20 is for accommodating the first gas driver 15.
Therefore, the first battery pack, the second battery pack and the closed cold channel can be enclosed to form the driving accommodation space for accommodating the first gas driving piece, and the accommodation space is not required to be additionally arranged, so that the utilization rate of the space in the shell can be improved.
Optionally, in this embodiment of the present application, as shown in fig. 7, the casing 10 is further provided with a third air outlet 105; the above-mentioned group battery cooling system still includes: a third battery pack 21 disposed in the housing 10, wherein the third battery pack 21, the second battery pack 17, the first battery pack 11 and the housing 10 enclose a closed cold channel 12, the third battery pack 21 and the housing 10 enclose a third closed hot channel 22, and one end of the third closed hot channel 22 is communicated with the third air outlet 105; wherein, a third accommodating space 24 for accommodating a third cell group 23 is arranged in the third cell group 21, and the third accommodating space 24 is communicated with the closed cold channel 12 and the third closed hot channel 22; the third battery pack 21 and the second battery pack 17 are located on different sides of the closed cold aisle 12.
It should be noted that, for the description that the third battery cell group 23 includes a plurality of battery cells, reference may be made to the specific description in the above embodiment, and this embodiment will not be repeated here.
Therefore, the third battery pack and the second battery pack can be arranged on different sides of the closed cold channel, so that the space in the shell can be fully utilized, and the utilization rate of the space in the shell can be improved.
Optionally, in this embodiment of the present application, referring to fig. 7, the casing 10 is further provided with a fourth air outlet 106; the above-mentioned group battery cooling system still includes: a fourth battery pack 25 disposed in the housing 10, wherein the fourth battery pack 25, the third battery pack 21, the second battery pack 17, the first battery pack 11 and the housing 10 enclose a closed cold channel 12, the fourth battery pack 25 and the housing 10 enclose a fourth closed hot channel 26, and one end of the fourth closed hot channel 26 is communicated with the fourth air outlet 106; wherein, a fourth accommodating space 28 for accommodating a fourth battery cell group 27 is arranged in the fourth battery pack 25, and the fourth accommodating space 28 is communicated with the closed cold channel 12 and the fourth closed hot channel 26; the fourth battery pack 25 and the first battery pack 11 are located on different sides of the closed cold aisle 12.
It should be noted that, for the description that the fourth cell group 27 includes a plurality of cells, reference may be made to the specific description in the above embodiment, and the embodiment of the present application will not be repeated here.
Alternatively, in the embodiment of the present application, with reference to fig. 7, the fourth battery pack 25, the third battery pack 21, and the closed cold aisle 12 are enclosed into a first driving accommodation space 29; wherein the first drive receiving space 29 is for receiving the second gas drive 16.
Therefore, the fourth battery pack and the first battery pack can be arranged on different sides of the closed cold channel, so that the space in the shell can be fully utilized, and the utilization rate of the space in the shell can be improved.
In the several embodiments provided in this application, it should be understood that the disclosed systems, devices, and methods may be implemented in other ways. For example, the above-described apparatus embodiments are merely illustrative, and for example, the division of the units is merely a logical function division, and there may be additional divisions when actually implemented, for example, multiple units or components may be combined or integrated into another system, or some features may be omitted or not performed. Alternatively, the coupling or direct coupling or communication connection shown or discussed with each other may be through some interface, indirect coupling or communication connection of devices or units, electrical, mechanical, or other form.
The units described as separate units may or may not be physically separate, and units shown as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.
In addition, each functional unit in each embodiment of the present application may be integrated in one processing unit, or each unit may exist alone physically, or two or more units may be integrated in one unit.
The foregoing is merely a specific embodiment of the present application, but the protection scope of the present application is not limited thereto, and any changes or substitutions within the technical scope of the present disclosure should be covered in the protection scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.
Claims (10)
1. A battery pack heat dissipation system, the battery pack heat dissipation system comprising:
the shell is provided with a first air inlet and a first air outlet;
the first battery pack is arranged in the shell, the first battery pack and the shell are enclosed to form a closed cold channel and a first closed hot channel, one end of the closed cold channel is communicated with the first air inlet, and one end of the first closed hot channel is communicated with the first air outlet; a first accommodating space for accommodating a first battery cell group is arranged in the first battery pack, and the first accommodating space is communicated with the closed cold channel and the first closed hot channel;
the first gas driving piece is arranged outside the shell, and an air outlet of the first gas driving piece is communicated with the first air inlet.
2. The battery pack heat dissipation system of claim 1, wherein the first cell group comprises at least two first cells; the first accommodating space comprises at least two first sub-accommodating spaces, the at least two first sub-accommodating spaces are sequentially arranged between the closed cold channel and the first closed hot channel, and each first sub-accommodating space accommodates one first battery cell;
wherein at least two of the first sub-accommodation spaces are in communication with the closed cold channel and the first closed hot channel.
3. The battery pack heat dissipation system of claim 2, wherein a first wall of the first sub-receiving space is in communication with the closed cold channel and a second wall of the first sub-receiving space is in communication with the first closed hot channel;
wherein the first wall and the second wall are disposed opposite.
4. The battery pack cooling system of claim 1 wherein the housing is further open with a second air outlet; the battery pack heat dissipation system further includes:
the second battery pack is arranged in the shell, the second battery pack, the first battery pack and the shell are enclosed to form the closed cold channel, the second battery pack and the shell are enclosed to form a second closed hot channel, and one end of the second closed hot channel is communicated with the second air outlet;
a second accommodating space for accommodating a second battery cell group is arranged in the second battery pack, and the second accommodating space is communicated with the closed cold channel and the second closed hot channel; the second battery pack and the first battery pack are both located on the same side of the closed cold aisle.
5. The battery pack heat dissipation system of claim 4, wherein the second cell group comprises at least two second cells; the second accommodating space comprises at least two second sub-accommodating spaces, the at least two second sub-accommodating spaces are sequentially arranged between the closed cold channel and the second closed hot channel, and each second sub-accommodating space accommodates one second battery cell;
wherein at least two of the second sub-accommodation spaces are in communication with the closed cold channel and the second closed hot channel.
6. The battery pack cooling system of claim 4 wherein the first battery pack, the second battery pack, and the enclosed cold aisle enclose a drive containment space;
wherein, the drive accommodation space is used for holding the first gas driver.
7. The battery pack cooling system of claim 4 wherein the housing is further open with a third air outlet; the battery pack heat dissipation system further includes:
the third battery pack is arranged in the shell, the third battery pack, the second battery pack, the first battery pack and the shell are enclosed to form the closed cold channel, the third battery pack and the shell are enclosed to form a third closed hot channel, and one end of the third closed hot channel is communicated with the third air outlet;
a third accommodating space for accommodating a third battery cell group is arranged in the third battery pack, and the third accommodating space is communicated with the closed cold channel and the third closed hot channel; the third battery pack and the second battery pack are located on different sides of the closed cold aisle.
8. The battery pack cooling system of claim 1 wherein the housing is further open with a second air inlet; the battery pack heat dissipation system further includes:
the second gas driving piece is arranged outside the shell, and an air outlet of the second gas driving piece is communicated with the second air inlet.
9. The battery pack cooling system of claim 8 wherein the second gas driver and the first gas driver are located on different sides of the closed cold aisle;
the second gas driver and the first gas driver are symmetrically disposed with respect to the closed cold aisle.
10. The battery pack heat dissipation system of claim 1, further comprising:
at least two temperature measuring pieces, the temperature measuring pieces are arranged in the shell, and the temperature measuring pieces are used for measuring the temperature in the shell;
and the first gas driving piece is in a working state under the condition that the maximum temperature in the temperatures measured by the at least two temperature measuring pieces is greater than or equal to a preset temperature.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223589149.7U CN219321437U (en) | 2022-12-30 | 2022-12-30 | Battery pack heat dissipation system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223589149.7U CN219321437U (en) | 2022-12-30 | 2022-12-30 | Battery pack heat dissipation system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116826240A (en) * | 2023-07-26 | 2023-09-29 | 苏州时代华景新能源有限公司 | Energy storage box |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116826240A (en) * | 2023-07-26 | 2023-09-29 | 苏州时代华景新能源有限公司 | Energy storage box |
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