CN214254533U - Cooling device of battery pack, electric power storage equipment and air conditioner direct cooling system of electric power storage equipment - Google Patents
Cooling device of battery pack, electric power storage equipment and air conditioner direct cooling system of electric power storage equipment Download PDFInfo
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- CN214254533U CN214254533U CN202120283703.5U CN202120283703U CN214254533U CN 214254533 U CN214254533 U CN 214254533U CN 202120283703 U CN202120283703 U CN 202120283703U CN 214254533 U CN214254533 U CN 214254533U
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Abstract
The utility model discloses a cooling device, electrical storage equipment and air conditioner direct cooling system of battery package, cooling device include import module and export module, import module includes import runner and a plurality of first branch module, one of them first branch module and import runner intercommunication, every first branch module includes a plurality of parallelly connected first branch runners, in the refrigerant flow direction, adjacent first branch module is through the first runner intercommunication that gathers; the outlet module comprises an outlet flow channel and a plurality of second branch modules, the second branch modules are sequentially communicated in the flow direction of the refrigerant, the second branch module located at the most upstream is communicated with the first branch module located at the most downstream through a communication flow channel, the second branch module located at the most downstream is communicated with the outlet flow channel, each second branch module comprises a plurality of second branch flow channels connected in parallel, and the adjacent second branch modules are communicated through at least one second collecting flow channel. The flow resistance of the cooling device is small, and the cooling is uniform.
Description
Technical Field
The utility model belongs to the technical field of the battery technique and specifically relates to a cooling device, electrical storage equipment and air conditioner direct cooling system of battery package is related to.
Background
In the technical field of empty batteries, a refrigerant enters two divided main flow channels from an inlet position of a cooling plate, the main flow channels extend to the bottom end of the cooling plate and are divided into two parts which are symmetrically distributed along the respective flow channels in an S shape and return to an outlet, the total branches of the flow channels are less, the flow resistance of the refrigerant is larger, the evaporation temperature difference of the refrigerant is larger, and the temperature uniformity of a battery pack is influenced. And the flow channels are separated and then do not converge, if the refrigerant distribution is not uniform, the subsequent adjustment and redistribution can not be carried out, and the cooling effect is influenced.
SUMMERY OF THE UTILITY MODEL
The utility model provides a cooling device of battery package, cooling device has the choked flow little, the even advantage of cooling.
The utility model provides an electric power storage equipment, electric power storage equipment has as above battery pack's cooling device.
The utility model provides a direct cooling system of air conditioner, including the air conditioner, the air conditioner shares the refrigerant with the cooling device of battery package.
According to the utility model discloses a cooling device of battery package, including import module and export module, the import module includes inlet flow channel and a plurality of first branch module, one of them first branch module with inlet flow channel intercommunication, a plurality of first branch module communicate in the flow direction order of refrigerant, every first branch module includes a plurality of parallelly connected first branch flow channel, in the refrigerant flow direction, adjacent first branch module is through gathering the runner intercommunication; the outlet module comprises an outlet flow channel and a plurality of second branch modules, the second branch modules are sequentially communicated in the flow direction of the refrigerant, the second branch module positioned at the most upstream is communicated with the first branch module positioned at the most downstream through a communication flow channel, the second branch module positioned at the most downstream is communicated with the outlet flow channel, each second branch module comprises a plurality of second branch flow channels connected in parallel, the adjacent second branch modules are communicated through at least one second collecting flow channel, and the number of the second collecting flow channels is smaller than that of the second branch flow channels of the second branch modules connected with the second branch modules.
According to the utility model discloses cooling device of battery package can reduce the flow resistance of refrigerant through letting first branch module include a plurality of first branch runners, and the evaporating temperature of even refrigerant guarantees the cooling homogeneity of import module to the battery package as far as possible. When the refrigerant flow in the first branch flow channel is unevenly distributed and has temperature difference, the refrigerant can be redistributed by the re-convergence of the first collecting flow channel, and the trend of further worsening of the temperature difference of the refrigerant is further favorably reduced. The flow resistance of the refrigerant can be reduced by the second branch module comprising a plurality of second branch flow channels, the evaporation temperature of the refrigerant is uniform, and the cooling uniformity of the outlet module to the battery pack is ensured as much as possible. When the refrigerant flow in the second branch flow channel is unevenly distributed and has temperature difference, the refrigerant can be redistributed by the re-convergence of the second collecting flow channel, so that the trend of further worsening of the temperature difference of the refrigerant is favorably reduced, and the flow resistance of the refrigerant can be reduced when the second collecting flow channels are multiple.
In some embodiments, the first branch module includes a plurality of sub-modules connected in parallel, each of the sub-modules includes a plurality of the first branch flow passages, and the sub-modules adjacent to each other in the refrigerant flow direction communicate with each other through a third collecting flow passage.
In some embodiments, each of the first branch flow passages extends in a bent manner.
In some embodiments, the first collecting channel extends in a bent manner.
In some embodiments, the cooling device of the battery pack further includes a plurality of inlet branch flow passages respectively communicating with the inlet flow passages, each of the inlet branch flow passages communicating with one of the first branch modules.
In some embodiments, the number of the inlet branch runners is two, and two first branch modules communicating with the two inlet branch runners are distributed on both sides of the inlet runner.
In some embodiments, there are two outlet channels, each outlet channel communicating with one of the second branch modules.
In some embodiments, the second branch flow passage extends in a bent manner.
In some embodiments, the second collecting channel extends in a bent manner.
In some embodiments, the inlet module includes a plurality of first regions in a flow direction of the refrigerant, and each of the first regions includes two first bifurcating modules located at both sides of the inlet channel.
In some embodiments, the cooling device of the battery pack includes a first plate body provided with a flow channel having an open side, and a second plate body provided at the first plate body to close the open side of the flow channel to define the inlet module and the outlet module.
In some embodiments, the inlet channel and the outlet channel are located on the same side of the cooling device, and the plurality of first branching modules and the plurality of second branching modules are arranged in a staggered manner in the flow direction of the refrigerant.
According to the utility model discloses power storage equipment, including the battery package and be used for cooling the cooling device of battery package, cooling device is according to the cooling device of battery package as above.
According to the utility model discloses power storage equipment can reduce the flow resistance of refrigerant through letting first branch module include a plurality of first branch runners, and the evaporation temperature of even refrigerant guarantees the cooling homogeneity of import module to the battery package as far as possible. When the refrigerant flow in the first branch flow channel is unevenly distributed and has temperature difference, the refrigerant can be redistributed by the re-convergence of the first collecting flow channel, and the trend of further worsening of the temperature difference of the refrigerant is further favorably reduced. The flow resistance of the refrigerant can be reduced by the second branch module comprising a plurality of second branch flow channels, the evaporation temperature of the refrigerant is uniform, and the cooling uniformity of the outlet module to the battery pack is ensured as much as possible. When the refrigerant flow in the second branch flow channel is unevenly distributed and has temperature difference, the refrigerant can be redistributed by the re-convergence of the second collecting flow channel, so that the trend of further worsening of the temperature difference of the refrigerant is favorably reduced, and the flow resistance of the refrigerant can be reduced when the second collecting flow channels are multiple.
In some embodiments, the inlet module has a length that is no less than ninety percent of the length of the battery pack and the outlet module has a length that is no less than ninety percent of the length of the battery pack in the lengthwise direction of the battery pack.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
fig. 1 is a schematic structural view of an electric storage apparatus according to an embodiment of the present invention;
fig. 2 is an exploded view of an electric storage apparatus according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of a first plate body according to an embodiment of the present invention
Fig. 4 is a schematic view of the inlet module and the communicating flow passage according to an embodiment of the present invention;
fig. 5 is a schematic structural view of an outlet module according to an embodiment of the present invention;
fig. 6 is a schematic diagram of a second branching module and a second collecting flow channel according to an embodiment of the present invention;
fig. 7 is a schematic structural diagram of a first branching module according to an embodiment of the present invention;
FIG. 8 is a schematic diagram of the inlet module, the outlet module and the communication channel according to an embodiment of the present invention
Fig. 9 is a schematic view of the inlet module and the communicating flow passage according to an embodiment of the present invention;
fig. 10 is a schematic view of the cooperation of an outlet module and a communication flow channel according to an embodiment of the present invention;
fig. 11 is a schematic view of the inlet module and the communicating flow passage according to an embodiment of the present invention;
fig. 12 is a schematic view of the cooperation of an outlet module and a communication flow channel according to an embodiment of the present invention;
FIG. 13 is a schematic diagram of the inlet module, the outlet module and the communication channel according to an embodiment of the present invention
Fig. 14 is a schematic view of the inlet module and the communicating flow passage according to an embodiment of the present invention;
fig. 15 is a schematic view of the cooperation of an outlet module and a communication flow channel according to an embodiment of the present invention;
fig. 16 is a schematic structural diagram of an inlet-outlet joint according to an embodiment of the present invention.
Reference numerals:
an electric storage apparatus 1000, a cooling device 100, a first plate 100a, a second plate 100b, an inlet/outlet connector 100c, a liquid inlet 101, a liquid outlet 102, a battery pack 200,
an inlet module 1, a first area 1a, an inlet runner 11, a first branch module 12, a sub-module 121, a first branch runner 1211, a third collecting runner 122, a first collecting runner 13, an inlet branch runner 14,
an outlet module 2, an outlet runner 21, a second branch module 22, a second branch runner 221, a second collecting runner 23,
and a flow passage 3 is communicated.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention.
The cooling device 100 and the electric storage apparatus 1000 of the battery pack 200 according to the embodiment of the present invention are described below with reference to the drawings, wherein the electric storage apparatus 1000 may include the battery pack 200, and the cooling device 100 may cool the battery pack 200.
As shown in fig. 1 to 16, a cooling device 100 of a battery pack 200 according to an embodiment of the present invention includes an inlet module 1 and an outlet module 2.
Specifically, referring to fig. 3 to 4, 8 to 9, 11 and 13 to 14, the inlet module 1 includes an inlet flow passage 11 and a plurality of first branch modules 12, wherein one first branch module 12 communicates with the inlet flow passage 11, the plurality of first branch modules 12 sequentially communicate in a flow direction of the refrigerant, each first branch module 12 includes a plurality of first branch flow passages 1211 connected in parallel, and adjacent first branch modules 12 communicate through a first collecting flow passage 13 in the flow direction of the refrigerant.
It will be appreciated that refrigerant may flow from the inlet channel 11 into the inlet module 1 to the first branching module 12 communicating with the inlet channel 11, from this first branching module 12 to the first summing channel 13, from the first summing channel 13 to the next first branching module 12 communicating therewith, and so on until refrigerant flows into the most downstream first branching module 12. The refrigerant can flow through each of the first branch flow passages 1211 connected in parallel in the first branch module 12, respectively, and can flow from each of the first branch flow passages 1211 to the first collective flow passage 13, and from the first collective flow passage 13 to each of the first branch flow passages 1211 of the next first branch module 12, respectively. Thus, by having the first branch module 12 include the plurality of first branch flow passages 1211, it is possible to reduce the flow resistance of the refrigerant, to uniformize the evaporation temperature of the refrigerant, and to secure the uniformity of cooling of the battery pack 200 by the inlet module 1 as much as possible. When the refrigerant flow in the first branch flow passage 1211 is unevenly distributed and has a temperature difference, the refrigerant can be redistributed by the re-merging of the first collecting flow passage 13, which is favorable for reducing the further deterioration of the temperature difference of the refrigerant.
As shown in fig. 3, 5, 8, 10, 12-13 and 15, the outlet module 2 includes an outlet flow passage 21 and a plurality of second branch modules 22, the plurality of second branch modules 22 are sequentially communicated in a flow direction of the refrigerant, in the flow direction of the refrigerant, the second branch module 22 located at the most upstream is communicated with the first branch module 12 located at the most downstream through a communication flow passage 3, the second branch module 22 located at the most downstream is communicated with the outlet flow passage 21, each second branch module 22 includes a plurality of second branch flow passages 221 connected in parallel, adjacent second branch modules 22 are communicated through at least one second collecting flow passage 23, and the number of the second collecting flow passages 23 is smaller than the number of the second branch flow passages 221 of the second branch modules 22 connected thereto.
It will be appreciated that the refrigerant may flow from the most downstream first branching module 12 to the communicating flow channel 3, from the communicating flow channel 3 to the most upstream second branching module 22, then to the second collecting flow channel 23 communicating with this second branching module 22, from the second collecting flow channel 23 to the next second branching module 22 communicating therewith, and so on, until the refrigerant flows into the most downstream second branching module 22, from the most downstream second branching module 22 to the outlet flow channel 21, and from the outlet flow channel 21 to the outlet module 2. Thereby, the cooling of the battery pack 200 by the cooling device 100 can be facilitated by the flow of the refrigerant in the inlet module 1 and the outlet module 2.
Here, the refrigerant may respectively flow through each of the second branch channels 221 connected in parallel in the second branch module 22, and may respectively flow from each of the second branch channels 221 to the second collecting channel 23, and may respectively flow from the second collecting channel 23 to each of the second branch channels 221 of the next second branch module 22, where, referring to fig. 6, the second collecting channel 23 may be one, and may be a plurality of, for example, two, three, four, five, and so on. Thus, by having the second branch module 22 include the plurality of second branch flow channels 221, the flow resistance of the refrigerant can be reduced, the evaporation temperature of the refrigerant is uniform, and the cooling uniformity of the outlet module 2 for the battery pack 200 is ensured as much as possible. When the refrigerant flow in the second branch flow channel 221 is unevenly distributed and has temperature difference, the refrigerant can be redistributed by the re-convergence of the second collecting flow channel 23, so that the further deterioration of the temperature difference of the refrigerant is favorably reduced, and the flow resistance of the refrigerant can be reduced when the second collecting flow channel 23 is multiple.
In the related art, the refrigerant enters two divided main flow channels from an inlet position of the cooling plate, the main flow channels extend to the bottom end of the cooling plate and are divided into two parts which are symmetrically distributed back to an outlet in an S shape along the respective flow channels, the total branches of the flow channels are less, the flow resistance of the refrigerant is larger, the evaporation temperature difference of the refrigerant is larger, and the temperature uniformity of the battery pack is influenced. And the flow channels are separated and then do not converge, if the refrigerant distribution is not uniform, the subsequent adjustment and redistribution can not be carried out, and the cooling effect is influenced.
And according to the embodiment of the present invention, the cooling device 100 of the battery pack 200 can reduce the flow resistance of the refrigerant by making the first branch module 12 include the plurality of first branch flow passages 1211, and the evaporation temperature of the uniform refrigerant can ensure the cooling uniformity of the battery pack 200 by the inlet module 1 as much as possible. When the refrigerant flow in the first branch flow passage 1211 is unevenly distributed and has a temperature difference, the refrigerant can be redistributed by the re-merging of the first collecting flow passage 13, which is favorable for reducing the further deterioration of the temperature difference of the refrigerant. By having the second branch flow path 221 include a plurality of second branch flow channels 22, the flow resistance of the refrigerant can be reduced, the evaporation temperature of the refrigerant can be uniform, and the cooling uniformity of the outlet module 2 for the battery pack 200 can be ensured as much as possible. When the refrigerant flow in the second branch flow channel 221 is unevenly distributed and has temperature difference, the refrigerant can be redistributed by the re-convergence of the second collecting flow channel 23, so that the further deterioration of the temperature difference of the refrigerant is favorably reduced, and the flow resistance of the refrigerant can be reduced when the second collecting flow channel 23 is multiple.
According to some embodiments of the present invention, in conjunction with fig. 3, fig. 8 and fig. 13, the communication flow channel 3 may be one sub-flow channel or may be a plurality of sub-flow channels, for example, two sub-flow channels, three sub-flow channels, four sub-flow channels, five sub-flow channels, etc., the communication flow channel 3 may facilitate guiding the refrigerant of the first branch module 12 to the second branch module 22, and the communication flow channel 3 may further achieve that the refrigerant in the first branch module 12 and the refrigerant in the second branch module 22 flow differently, for example, the flow direction of the refrigerant in the first branch module 12 and the flow direction of the refrigerant in the second branch module 22 are opposite, but the relationship between the flow direction of the refrigerant in the first branch module 12 and the flow direction of the refrigerant in the second branch module 22 is not limited thereto.
Further, the communicating flow channel 3 may be bent and extended, so that the first branch module 12 and the second branch module 22 may have their inlets and outlets disposed at any positions, that is, the outlet of the first branch module 12 at the most downstream may be disposed at any position, the inlet of the second branch module 22 at the most upstream may be disposed at any position, and the bent and extended communicating flow channel 3 may connect the first branch module 12 at the most downstream and the second branch module 22 at the most upstream.
In some embodiments of the present invention, as shown in fig. 3 to 4, the first branch module 12 may include a plurality of sub-modules 121 connected in parallel, each sub-module 121 includes a plurality of first branch runners 1211, and the sub-modules 121 adjacent to each other in the refrigerant flowing direction are communicated through the third collecting runner 122. Thus, the arrangement of the first branch module 12 may be facilitated, for example, the first branch module 12 may be arranged according to the positions of the cells in the battery pack 200, and the first branch module 12 including the plurality of parallel sub-modules 121 may be arranged at a position where the number of cells is large.
Referring to fig. 4 and 7, each of the first branch flow passages 1211 may extend while being bent according to some embodiments of the present invention. This can increase the cooling area of the battery pack 200 by the first branching module 12. In connection with fig. 9, according to some embodiments of the present invention, the first summarizing flow channel 13 may be bent and extended, and thus, the first branch module 12 may be disposed at any position for the inlet and outlet, that is, the outlet of the first branch module 12 at the upstream of the first summarizing flow channel 13 may be disposed at any position, the inlet of the first branch module 12 at the downstream of the first summarizing flow channel 13 may be disposed at any position, and the first summarizing flow channel 13 bent and extended may connect two adjacent first branch modules 12.
In some embodiments of the present invention, as shown in fig. 3-4, the cooling device 100 of the battery pack 200 further includes a plurality of inlet branch runners 14, the plurality of inlet branch runners 14 are respectively communicated with the inlet runner 11, and each inlet branch runner 14 is communicated with one first branch module 12. The inlet runner 11 may be divided into a plurality of branch runners through the inlet branch runner 14, and each branch runner may communicate with a plurality of first branch modules 12 connected in sequence, whereby the arrangement area of the first branch modules 12 may be increased, thereby increasing the cooling effect of the inlet module 1 on the battery pack 200.
According to some embodiments of the present invention, as shown in fig. 3 to 4, 8 to 9, 11, and 13 to 14, the inlet branch runners 14 may be two, and two first branch modules 12 communicating with the two inlet branch runners 14 are distributed on both sides of the inlet runner 11. Thereby, the arrangement of the two first branch modules 12 may be facilitated, the compactness of the arrangement of the two first branch modules 12 may be improved, and the cooling area may be maximized while the volume of the cooling device 100 may be reduced.
As shown in fig. 3, 5, 8, 10, 12-13 and 15, in some embodiments of the present invention, there may be two outlet runners 21, and each outlet runner 21 communicates with one second branch module 22. It can be understood that the refrigerant flows from the first branch module 12 to the second branch module 22, and the temperature of the refrigerant is increased when the refrigerant flows to the second branch module 22, so that the refrigerant with higher temperature can be quickly led out of the cooling device 100 by connecting each downstream second branch module 22 with one outlet flow channel 21, thereby accelerating the circulation of the refrigerant and improving the cooling effect of the cooling device 100 on the battery pack 200.
According to some embodiments of the present invention, in conjunction with fig. 14, the second branch flow channel 221 may be bent and extended, thereby increasing the cooling area of the battery pack 200 by the second branch module 22. In combination with fig. 15, according to the utility model discloses a some embodiments, the second is gathered runner 23 and is extended to buckle, from this, can be so that second branch module 22 will exit and set up in optional position, also the second gathers the export of the second branch module 22 of the upper reaches of runner 23 and can set up in optional position, and the import of the second branch module 22 of the lower reaches of runner 23 is gathered to the second can set up in optional position, and the second that buckles the extension is gathered runner 23 and all can be connected two adjacent second branch modules 22.
In some embodiments of the present invention, as shown in fig. 14, in the flowing direction of the refrigerant, the inlet module 1 includes a plurality of first regions 1a, each first region 1a includes two first branch modules 12 located at two sides of the inlet channel 11, thereby two first branch modules 12 can be arranged at each first region 1a, and further the cooling area of the cooling device 100 to the battery pack 200 can be increased, and the arrangement of two first branch modules 12 can be facilitated by the two first branch modules 12 located at two sides of the inlet channel 11, so that the miniaturization design of the cooling device 100 is facilitated on the premise of ensuring the cooling effect.
As shown in fig. 2, according to some embodiments of the present invention, the cooling device 100 includes a first plate 100a and a second plate 100b, wherein the first plate 100a is provided with a flow channel with one side open, and the second plate 100b is provided on the first plate 100a to close the open side of the flow channel to define the inlet module 1 and the outlet module 2. Thus, the cooperation of the first plate body 100a and the second plate body 100b may facilitate the formation of the inlet flow passage 11, the first branch flow passage 1211, the third collecting flow passage 122, the first collecting flow passage 13, the outlet flow passage 21, the second branch flow passage 221, the second collecting flow passage 23, the communicating flow passage 3, and the inlet branch flow passage 14. Further, the first plate body 100a and the second plate body 100b may be welded, so that on one hand, the connection strength between the first plate body 100a and the second plate body 100b may be ensured, and the probability of disengagement between the first plate body 100a and the second plate body 100b may be reduced; on the other hand, the sealing performance of each flow passage after the first plate body 100a and the second plate body 100b are connected can be enhanced, and the probability that the refrigerant flows out from the gap between the first plate body 100a and the second plate body 100b of each flow passage can be reduced. Further, the flow channel opened at one side of the first plate body 100a may be formed by stamping, so that the processing and manufacturing of the flow channel may be facilitated, and the sealing performance of the flow channel on the first plate body 100a may be ensured.
In some embodiments of the present invention, as shown in fig. 3, the inlet channel 11 and the outlet channel 21 are located on the same side of the cooling device 100, and the plurality of first branch modules 12 and the plurality of second branch modules 22 are arranged alternately in the flowing direction of the refrigerant. In the cooling device 100, if the liquid refrigerant is completely evaporated into the gaseous refrigerant in advance when the liquid refrigerant does not flow out of the covering surface of the battery pack 200, the refrigerant continues to absorb heat at this time, so that the temperature of the refrigerant in the subsequent flow channel is rapidly increased, and the plurality of first branch modules 12 and the plurality of second branch modules 22 are arranged in a staggered manner, so that the refrigerant is slightly overheated in advance, and the overall temperature uniformity of the battery pack 200 is not affected. Moreover, since the head and tail portions of the flow channel of the whole cooling device 100 have different pressures of the refrigerant due to the flow resistance of the flow channel, resulting in different evaporation temperatures of the refrigerant, thereby generating a temperature difference, the staggered arrangement of the plurality of first branch modules 12 and the plurality of second branch modules 22 can improve the influence of the temperature difference on the temperature uniformity of the battery pack 200.
According to some embodiments of the present invention, as shown in fig. 16, the cooling device 100 may further include an inlet-outlet joint 100c, and the inlet-outlet joint 100c includes a liquid inlet 101 communicated with the inlet flow channel 11 and a liquid outlet 102 communicated with the outlet flow channel 21, so as to facilitate connection of the cooling device 100 with an external refrigerant device, and facilitate circulation of the refrigerant in the cooling device 100. Further, there may be two liquid outlets 102, so that each liquid outlet 102 may communicate with one outlet flow channel 21, and each outlet flow channel 21 may guide the refrigerant out of the cooling device 100. Since the refrigerant flows from the first branch module 12 to the second branch module 22, and the temperature of the refrigerant is increased when the refrigerant flows to the second branch module 22, each second branch module 22 at the most downstream may be connected to one outlet flow channel 21, and each outlet flow channel 21 may rapidly lead the refrigerant with a higher temperature out of the cooling device 100 through the corresponding liquid outlet 102, so as to accelerate the circulation of the refrigerant and improve the cooling effect of the cooling device 100 on the battery pack 200.
According to the power storage apparatus 1000 of the embodiment of the present invention, including the battery pack 200 and the cooling device 100 for cooling the battery pack 200, the cooling device 100 is the cooling device 100 according to the battery pack 200 as described above.
According to the utility model discloses power storage equipment 1000, can reduce the flow resistance of refrigerant through letting first branch module 12 include a plurality of first branch runner 1211, the evaporating temperature of even refrigerant guarantees the cooling homogeneity of import module 1 to battery package 200 as far as possible. When the refrigerant flow in the first branch flow passage 1211 is unevenly distributed and has a temperature difference, the refrigerant can be redistributed by the re-merging of the first collecting flow passage 13, which is favorable for reducing the tendency of further deterioration of the temperature difference of the refrigerant. By having the second branch flow path 221 include a plurality of second branch flow channels 22, the flow resistance of the refrigerant can be reduced, the evaporation temperature of the refrigerant can be uniform, and the cooling uniformity of the outlet module 2 for the battery pack 200 can be ensured as much as possible. When the refrigerant flow in the second branch flow channel 221 is unevenly distributed and has temperature difference, the refrigerant can be redistributed by the re-convergence of the second collecting flow channel 23, so that the trend of further worsening of the temperature difference of the refrigerant is favorably reduced, and the flow resistance of the refrigerant can be reduced when the number of the second collecting flow channels 23 is multiple.
In some embodiments of the present invention, in the length direction of the battery pack 200, the length of the inlet module 1 is not less than ninety percent of the length of the battery pack 200, and the length of the outlet module 2 is not less than ninety percent of the length of the battery pack 200, it can be understood that, in the cooling device 100, if the liquid refrigerant is completely evaporated into the gaseous refrigerant in advance when not flowing out of the covering surface of the battery pack 200, the refrigerant continues to absorb heat at this time, so that the temperature of the refrigerant in the subsequent flow channel is rapidly increased, the length of the inlet module 1 is not less than ninety percent of the length of the battery pack 200, and the length of the outlet module 2 is not less than ninety percent of the length of the battery pack 200, so that the refrigerant is slightly overheated in advance, and the overall temperature uniformity of the battery pack 200 is not affected.
According to the utility model discloses cold system is directly gone here to air conditioner, air conditioner and battery package cooling device sharing refrigerant, through fusing battery package cooling device to air conditioning system in, the refrigerant among the air conditioning system can flow through battery package cooling device in order to carry out the heat transfer to the battery, under the prerequisite of temperature in the realization regulation vehicle, can realize battery package cooling device's temperature regulation to can improve battery package cooling device's heat exchange efficiency. And the system has simple structure and can meet the heat management requirements of the vehicle and the battery in a more economical and energy-saving mode.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like, indicate the orientation or positional relationship indicated based on the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention. Furthermore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
While embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.
Claims (15)
1. A cooling device for a battery pack, comprising:
the inlet module comprises an inlet runner and a plurality of first branch modules, wherein one first branch module is communicated with the inlet runner, the plurality of first branch modules are sequentially communicated in the flowing direction of the refrigerant, each first branch module comprises a plurality of first branch runners connected in parallel, and the adjacent first branch modules are communicated through a first collecting runner in the flowing direction of the refrigerant;
the outlet module comprises an outlet flow channel and a plurality of second branch modules, the second branch modules are sequentially communicated in the flow direction of refrigerant, in the flow direction of the refrigerant, the second branch module located at the most upstream is communicated with the first branch module located at the most downstream through a communication flow channel, the second branch module located at the most downstream is communicated with the outlet flow channel, each second branch module comprises a plurality of second branch flow channels connected in parallel, the adjacent second branch modules are communicated through at least one second collecting flow channel, and the number of the second collecting flow channels is smaller than that of the second branch flow channels of the second branch modules connected with the second branch modules.
2. The battery pack cooling apparatus according to claim 1, wherein the first branch module includes a plurality of sub-modules connected in parallel, each of the sub-modules includes a plurality of the first branch flow passages, and the sub-modules adjacent in the refrigerant flow direction communicate through a third collective flow passage.
3. The battery pack cooling device according to claim 1, wherein each of the first branch flow paths extends while being bent.
4. The battery pack cooling device according to claim 1, wherein the first collecting flow passage extends while being bent.
5. The battery pack cooling apparatus according to claim 1, further comprising a plurality of inlet branch flow passages respectively communicating with the inlet flow passages, each of the inlet branch flow passages communicating with one of the first branch modules.
6. The battery pack cooling apparatus according to claim 5, wherein the inlet branch flow passage is two, and two first branch modules communicating with the two inlet branch flow passages are distributed on both sides of the inlet flow passage.
7. The battery pack cooling apparatus according to claim 1, wherein the number of the outlet flow passages is two, and each of the outlet flow passages communicates with one of the second branch modules.
8. The battery pack cooling device according to claim 1, wherein the second branch flow path extends while being bent.
9. The battery pack cooling device according to claim 1, wherein the second collecting flow passage extends while being bent.
10. The battery pack cooling apparatus according to claim 1, wherein the inlet module includes a plurality of first regions in a flow direction of the refrigerant, each of the first regions including two first bifurcating modules located at both sides of the inlet flow passage.
11. The battery pack cooling apparatus according to claim 1, comprising a first plate body provided with a flow channel having one side opened and a second plate body provided with the first plate body to close the open side of the flow channel to define the inlet module and the outlet module.
12. The cooling device for battery packs according to any one of claims 1 to 11, wherein the inlet flow path and the outlet flow path are located on the same side of the cooling device, and a plurality of the first branching modules and a plurality of the second branching modules are arranged alternately in a flow direction of the refrigerant.
13. An electric storage apparatus, characterized by comprising:
a battery pack;
a cooling device for cooling the battery pack, the cooling device being the cooling device for a battery pack according to any one of claims 1 to 12.
14. The power storage apparatus according to claim 13, characterized in that a length of the inlet module is not less than ninety percent of a length of the battery pack and a length of the outlet module is not less than ninety percent of the length of the battery pack in a length direction of the battery pack.
15. An air conditioner direct cooling system, comprising:
an air conditioner;
a cooling device for cooling the battery pack, the cooling device being the cooling device for a battery pack according to any one of claims 1 to 12;
the air conditioner shares a refrigerant with a cooling device of the battery pack.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120283703.5U CN214254533U (en) | 2021-02-01 | 2021-02-01 | Cooling device of battery pack, electric power storage equipment and air conditioner direct cooling system of electric power storage equipment |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120283703.5U CN214254533U (en) | 2021-02-01 | 2021-02-01 | Cooling device of battery pack, electric power storage equipment and air conditioner direct cooling system of electric power storage equipment |
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| CN214254533U true CN214254533U (en) | 2021-09-21 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115377548A (en) * | 2022-09-16 | 2022-11-22 | 江苏正力新能电池技术有限公司 | Cooling device and battery pack |
| WO2024002201A1 (en) * | 2022-06-30 | 2024-01-04 | 比亚迪股份有限公司 | Direct cooling plate, heat exchanger, power battery pack and vehicle |
| WO2024022453A1 (en) * | 2022-07-29 | 2024-02-01 | 比亚迪股份有限公司 | Heat exchange plate, battery pack, and vehicle |
-
2021
- 2021-02-01 CN CN202120283703.5U patent/CN214254533U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024002201A1 (en) * | 2022-06-30 | 2024-01-04 | 比亚迪股份有限公司 | Direct cooling plate, heat exchanger, power battery pack and vehicle |
| WO2024022453A1 (en) * | 2022-07-29 | 2024-02-01 | 比亚迪股份有限公司 | Heat exchange plate, battery pack, and vehicle |
| CN115377548A (en) * | 2022-09-16 | 2022-11-22 | 江苏正力新能电池技术有限公司 | Cooling device and battery pack |
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