CN220021257U - Cooling assembly and battery pack - Google Patents

Abstract

The utility model discloses a cooling assembly and a battery pack, wherein the cooling assembly comprises: the heat exchange part comprises a plurality of heat exchange pieces, the plurality of heat exchange pieces are distributed in sequence along the first direction of the cooling assembly, each heat exchange piece comprises a converging inlet joint and a converging outlet joint, the first collecting piece and the second collecting piece are located on the same side of the heat exchange part, the first collecting piece is connected with a plurality of first collecting joints, the plurality of first collecting joints are connected with corresponding converging inlet joints to enable the first collecting pieces to be communicated with corresponding heat exchange pieces, the second collecting piece is connected with a plurality of second collecting joints, and the plurality of second collecting joints are connected with corresponding converging outlet joints to enable the second collecting pieces to be communicated with corresponding heat exchange pieces. Therefore, the first collecting joint of the first collecting piece and the second collecting joint of the second collecting piece only participate in the heat exchange medium sub-circulation of the corresponding heat exchange piece, and the pressure of the heat exchange part at each joint of the first collecting piece and the second collecting piece is greatly reduced.

Description

Cooling assembly and battery pack

Technical Field

The utility model relates to the technical field of battery cooling, in particular to a cooling assembly and a battery pack.

Background

With the rapid development of electric vehicles, the performance of the power battery is more and more paid attention to, and the heat dissipation capacity of the power battery is a key factor affecting the performance, in order to enable the power battery to obtain a better cooling effect, in related technologies, a direct cooling scheme is generally adopted to cool the power battery of the electric vehicle, for example, a collecting pipe is directly connected in series between each heat exchange piece so as to realize the cooling circulation of a heat exchange medium, but in the scheme, the interface between the collecting pipe and the heat exchange piece participates in the main circulation of the heat exchange medium in the collecting pipe and also participates in the sub-circulation of the heat exchange medium in the heat exchange piece, so that the pressure at the interface between the collecting pipe and the heat exchange piece is overlarge, and the pressure requirement at the interface in a cooling system is difficult to meet.

Disclosure of Invention

The present utility model aims to solve at least one of the technical problems existing in the prior art. Therefore, a first object of the present utility model is to propose a cooling assembly which enables the communication of a first header and a second header with each heat exchange element and which, with respect to the direct series connection of headers between each heat exchange element, takes part in the main circulation of the heat exchange medium, the first header and the second header of which take part in the sub-circulation of the heat exchange medium of the respective heat exchange element, so as to greatly reduce the pressure at the junction of the first header with the header inlet and at the junction of the second header with the header outlet, and at the same time, also enables the parallel design of a plurality of heat exchange elements, reducing the flow length of the heat exchange medium, which is advantageous for improving the heat exchange efficiency of the cooling assembly.

A second object of the present utility model is to provide a battery pack.

To achieve the above object, an embodiment of a first aspect of the present utility model provides a cooling assembly, including:

the heat exchange part comprises a plurality of heat exchange pieces which are sequentially distributed along the first direction of the cooling assembly, and each heat exchange piece comprises a converging inlet joint and a converging outlet joint;

the first current collecting piece and the second current collecting piece are positioned on the same side of the heat exchange part, the first current collecting piece is connected with a plurality of first current collecting joints, the plurality of first current collecting joints are connected with corresponding current collecting inlet joints so as to enable the first current collecting piece to be communicated with the corresponding heat exchange piece,

the second header is connected with a plurality of second header connectors which are connected with corresponding header outlet connectors so as to enable the second header to be communicated with corresponding heat exchange pieces.

According to the cooling assembly provided by the embodiment of the utility model, the first collecting piece and the second collecting piece are respectively provided with the first collecting joint and the second collecting joint which are special for connection, the first collecting joint is connected with the corresponding collecting inlet joint, the second collecting joint is connected with the corresponding collecting outlet joint, the communication of the first collecting piece and the second collecting piece with each heat exchange piece is realized, and compared with the process that the collecting pipes are directly connected between the heat exchange pieces in series, the first collecting piece and the second collecting piece participate in the main circulation of heat exchange medium, and the first collecting joint of the first collecting piece and the second collecting joint of the second collecting piece only participate in the sub-circulation of heat exchange medium of the corresponding heat exchange piece, so that the pressure at the position of the first collecting joint and the collecting inlet joint and the pressure at the position of the second collecting joint and the collecting outlet joint are greatly reduced, meanwhile, the parallel connection design of the heat exchange pieces is realized, the flow length of the heat exchange medium is reduced, and the heat exchange efficiency of the cooling assembly is improved.

In some examples of the utility model, the first header is plugged with the manifold inlet header and the second header is plugged with the manifold outlet header.

In some examples of the utility model, the manifold inlet header has a first communication aperture, the first manifold header has a first connection tube portion that fits within the first communication aperture to communicate the first manifold and the heat exchange member, and the manifold inlet header and the first manifold header are secured by a fastener.

In some examples of the utility model, the manifold inlet header further has a first mounting hole, the first manifold header further has a second mounting hole corresponding to the first mounting hole, and the fastener is threaded through the first and second mounting holes.

In some examples of the utility model, further comprising: the sealing piece is sleeved outside the first connecting pipe part and is positioned between the first connecting pipe part and the inner wall of the first connecting hole, so that the sealing piece seals a gap between the first connecting pipe part and the inner wall of the first connecting hole.

In some examples of the utility model, the outer peripheral wall of the first connecting tube portion is provided with a mounting groove in which the seal is mounted.

In some examples of the utility model, the manifold inlet connector has a first mating portion and the first manifold connector has a second mating portion, the first mating portion mating within the second mating portion to secure the manifold inlet connector and the first manifold connector.

In some examples of the utility model, the manifold inlet and outlet connectors are identical in construction and the first and second manifold connectors are identical in construction.

In some examples of the utility model, the heat exchange member further comprises: the heat exchange piece body is internally provided with a first flow channel and a second flow channel, one end of the first flow channel is communicated with one end of the second flow channel, the other end of the first flow channel is communicated with a converging inlet joint, and the other end of the second flow channel is communicated with a converging outlet joint.

In some examples of the utility model, a divider plate is disposed within the first flow channel and/or the second flow channel, the divider plate dividing the respective flow channel into a plurality of sub-flow channels.

In some examples of the utility model, the first header further has a first header in communication with each of the plurality of first header connectors, the first header having an inlet end, the second header further has a second header in communication with each of the plurality of second header connectors, the second header having an outlet end, the inlet end and/or the outlet end being connected to the communicating member.

To achieve the above object, a second aspect of the present utility model provides a battery pack, comprising:

a battery cell;

and the cooling assembly is the cooling assembly in the embodiment of the first aspect, and the heat exchange piece is suitable for contacting with the battery cells.

According to the battery pack disclosed by the embodiment of the utility model, by arranging the cooling assembly, two heat exchange pieces exchange heat for one battery monomer at the same time, so that the heat exchange efficiency is improved, and meanwhile, the heat exchange pieces are matched with the outer surfaces of the battery monomers, so that the heat exchange pieces are in contact with the battery monomers more fully, and the heat exchange effect of the cooling assembly is improved.

Additional aspects and advantages of the utility model 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 utility model.

Drawings

The foregoing and/or additional aspects and advantages of the utility model will become apparent and may be better understood from the following description of embodiments taken in conjunction with the accompanying drawings in which:

FIG. 1 is a perspective view of a cooling assembly according to a first embodiment of the present utility model;

FIG. 2 is an enlarged view at A in FIG. 1;

fig. 3 is a top view of a first header, a second header and a communication according to a first embodiment of the present utility model;

fig. 4 is a perspective view of a heat exchange member according to a first embodiment of the present utility model;

fig. 5 is an enlarged view at B in fig. 4;

fig. 6 is a perspective view of a manifold inlet header and a first manifold header according to a first embodiment of the present utility model;

FIG. 7 is a perspective view of a heat exchange member according to a second embodiment of the present utility model;

fig. 8 is an enlarged view at B in fig. 7;

FIG. 9 is a side view of a heat exchange member according to a second embodiment of the present utility model;

fig. 10 is a perspective view of a first current collector according to a second embodiment of the present utility model;

FIG. 11 is a side view of a heat exchange member according to a first embodiment of the present utility model;

FIG. 12 is a cross-sectional view taken along the line C-C in FIG. 11;

fig. 13 is an enlarged view of D in fig. 12;

fig. 14 is a perspective view of a battery pack according to a first embodiment of the present utility model;

fig. 15 is a perspective view of a battery pack according to a second embodiment of the present utility model.

Reference numerals:

a cooling assembly 100;

a heat exchange section 10; a heat exchange member 1; a confluence inlet joint 11; a first communication hole 111; a first fitting hole 112; a first plug-in portion 113; a confluence outlet joint 12; a heat exchange member body 13; a first flow channel 131; a second flow passage 132; a partition plate 133; a sub-runner 134;

a first current collector 2; a first header 21; a first connection pipe portion 211; a mounting groove 2111; a second fitting hole 212; a second plug-in portion 213; a first header 22; an inlet end 221;

a second current collector 3; a second header 31; a second header 32; an outlet end 321;

a seal 4;

a communication member 5;

a fastener 6;

a battery pack 200;

a battery cell 201;

a first direction X.

Detailed Description

Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the utility model.

The cooling assembly 100 and the battery pack 200 according to the embodiment of the present utility model are described below with reference to the accompanying drawings.

As shown in fig. 1-13, a cooling assembly 100 according to an embodiment of the first aspect of the present utility model includes: the heat exchange part 10, the first current collector 2 and the second current collector 3, the heat exchange part 10 comprises a plurality of heat exchange pieces 1, the plurality of heat exchange pieces 1 are distributed in sequence along the first direction of the cooling assembly, each heat exchange piece 1 comprises a current collecting inlet joint 11 and a current collecting outlet joint 12, the first current collector 2 and the second current collector 3 are positioned on the same side of the heat exchange part 10, the first current collector 2 is connected with a plurality of first current collecting joints 21, the plurality of first current collecting joints 21 are connected with the corresponding current collecting inlet joints 11 so as to enable the first current collector 2 to be communicated with the corresponding heat exchange pieces 1, the second current collector 3 is connected with a plurality of second current collecting joints 31, and the plurality of second current collecting joints 31 are connected with the corresponding current collecting outlet joints 12 so as to enable the second current collector 3 to be communicated with the corresponding heat exchange pieces 1.

Specifically, as shown in fig. 1, the heat exchange part 10 includes a plurality of heat exchange members 1, the number of the heat exchange members 1 is set according to specific needs, and is not limited herein, wherein the plurality of heat exchange members 1 are sequentially and alternately distributed along a first direction X of the cooling assembly 100, a battery can be arranged between adjacent heat exchange members 1, the heat exchange members 1 are in direct contact with the battery, and a heat exchange medium is arranged inside the heat exchange members 1, wherein the heat exchange medium can be a refrigerant or a cooling liquid, and can exchange heat at two sides of the battery simultaneously through the heat exchange members 1 which are alternately distributed, so that the heat exchange efficiency is improved, and further, as shown in fig. 4 and 5, the same side of each heat exchange member 1 is provided with a confluence inlet connector 11 and a confluence outlet connector 12, and the heat exchange medium flows into the heat exchange member 1 from the confluence inlet connector 11 and flows out of the confluence outlet connector 12 after flowing through the whole heat exchange member 1, thereby realizing heat exchange between the heat exchange medium and the battery.

The first current collector 2 and the second current collector 3 are located on the same side of the heat exchange portion 10, alternatively, the first current collector 2 and the second current collector 3 are located on the same side of the current collecting inlet joint 11 and the current collecting outlet joint 12 close to the heat exchange piece 1, the first current collector 2 has a plurality of first current collecting joints 21, the number of the first current collecting joints 21 is the same as that of the heat exchange piece 1, for example, as shown in connection with fig. 1 and referring to fig. 2, the cooling assembly 100 comprises 8 heat exchange pieces 1, the first current collector 2 has 8 first current collecting joints 21, each first current collecting joint 21 is respectively connected with the current collecting inlet joint 11 of the corresponding heat exchange piece 1, the second current collector 3 has a plurality of second current collecting joints 31, the number of the second current collecting joints 31 is the same as that of the heat exchange pieces 1, for example, as shown in connection with fig. 1 and referring to fig. 2, the cooling assembly 100 comprises 8 heat exchange pieces 1, the second current collecting joints 3 has 8 second current collecting joints 31, each second current collecting joint 31 is respectively connected with the current collecting outlet joint 12 of the corresponding heat exchange piece 1.

When the cooling assembly 100 is in operation, the heat exchange medium flows into the first current collector 2 from the outside and flows into the corresponding current collecting inlet joint 11 through the first current collecting joints 21 respectively, so that the heat exchange medium flows into the corresponding heat exchange piece 1, and flows out of the corresponding current collecting outlet joint 12 after flowing through the corresponding heat exchange piece 1, and each current collecting outlet joint 12 is connected with the corresponding second current collecting joint 31, so that the heat exchange medium in the heat exchange pieces 1 flows back to the second current collector 3 again through the corresponding second current collecting joint 31, the communication between the first current collector 2 and the second current collector 3 and the heat exchange pieces 1 is realized, and compared with the direct connection of the current collecting pipes between the heat exchange pieces 1, the first current collecting joint 21 of the first current collector 2 and the second current collecting joint 31 of the second current collector 3 only participate in the main circulation of the heat exchange medium, thereby greatly reducing the pressure between the first current collecting joint 21 and the current collecting inlet joint 11 and the second current collecting joint 31 and the current collecting outlet joint 12, simultaneously realizing the realization of the heat exchange medium flow of a plurality of heat exchange pieces 1, and the cooling assembly 100 is facilitated to be reduced in the design.

According to the cooling module 100 of the embodiment of the utility model, by arranging the plurality of first current collecting connectors 21 and the plurality of second current collecting connectors 31 special for connection respectively on the first current collecting piece 2 and the second current collecting piece 3, and connecting the first current collecting connector 21 with the corresponding current collecting inlet connector 11 and connecting the second current collecting connector 31 with the corresponding current collecting outlet connector 12, the communication between the first current collecting piece 2 and the second current collecting piece 3 and each heat exchanging piece 1 is realized, and compared with the direct connection of the current collecting pipes between the heat exchanging pieces 1, the first current collecting piece 2 and the second current collecting piece 3 participate in the main circulation of heat exchanging medium, and the first current collecting connector 21 of the first current collecting piece 2 and the second current collecting connector 31 of the second current collecting piece 3 only participate in the sub circulation of heat exchanging medium of the corresponding heat exchanging piece 1, so that the pressures of the first current collecting connector 21 and the current collecting inlet connector 11 and the second current collecting connector 31 and the current collecting outlet connector 12 are greatly reduced, meanwhile, the parallel connection design of the plurality of heat exchanging pieces 1 is realized, the flow length of heat exchanging medium is reduced, and the cooling module 100 is beneficial to be improved.

In some embodiments of the present utility model, the first header 21 is plugged with the manifold inlet header 11 and the second header 31 is plugged with the manifold outlet header 12. That is, when the first current collector 2 and the second current collector 3 are assembled with the heat exchange member 1, the first current collector joint 21 of the first current collector 2 is directly assembled with the current collecting inlet joint 11 of the heat exchange member 1 in a plugging manner, and the second current collector joint 31 of the second current collector 3 is assembled with the current collecting outlet joint 12 of the heat exchange member 1 in a plugging manner, wherein the first current collector joint 21 can be inserted into the current collecting inlet joint 11, the current collecting inlet joint 11 can be inserted into the first current collector joint 21, similarly, the second current collector joint 31 can be inserted into the current collecting outlet joint 12, and the current collecting outlet joint 12 can be inserted into the second current collector joint 31, which is not particularly limited, so that the connection of the first current collector 2 with the heat exchange member 1 and the connection of the second current collector 3 with the heat exchange member 1 are facilitated, and meanwhile, the assembly difficulty is reduced, and the assembly efficiency is improved.

In some embodiments of the present utility model, as shown in fig. 6, the manifold inlet header 11 has a first communication hole 111, the first header 21 has a first connection pipe portion 211, and the first connection pipe portion 211 is installed in the first communication hole 111 to communicate the first header 2 with the heat exchanger 1, and the manifold inlet header 11 and the first header 21 are fixed by the fastener 6. Specifically, when the confluence inlet joint 11 and the first confluence joint 21 are installed in a matched manner, the first connecting pipe 211 of the first confluence joint 21 is installed to the first connecting hole 111 of the confluence inlet joint 11, so that the first confluence joint 2 and the heat exchange piece 1 are communicated, the matched installation of the first confluence joint 21 and the confluence inlet joint 11 is facilitated, the first confluence joint 21 can be directly inserted into the confluence inlet joint 11, the installation efficiency is improved, meanwhile, when a heat exchange medium in the heat exchange piece 1 is a refrigerant, the pressure at the inlet and the outlet of the heat exchange piece 1 is larger, in order to improve the static pressure resistance and the explosion resistance of the inlet and the outlet of the heat exchange piece 1, the connection strength of the heat exchange piece 1 and the first confluence piece 2 or the second confluence piece 3 is required to be further improved.

In some embodiments of the present utility model, as shown in fig. 6, the manifold inlet header 11 further has a first fitting hole 112, the first manifold header 21 further has a second fitting hole 212 corresponding to the first fitting hole 112, and the fastener 6 is inserted through the first fitting hole 112 and the second fitting hole 212. That is, the bus inlet connector 11 and the first manifold connector 21 are respectively provided with the first assembly hole 112 and the second assembly hole 212, when the bus inlet connector 11 and the first manifold connector 21 are assembled, the first assembly hole 112 of the bus inlet connector 11 is opposite to the second assembly hole 212 of the first manifold connector 21, and the fastener 6 is arranged through the first assembly hole 112 and the second assembly hole 212 in a penetrating manner so as to realize the fixed installation of the bus inlet connector 11 and the first manifold connector 21, alternatively, the fastener 6 can be but not limited to a bolt, and the arrangement is such that the bus inlet connector 11 and the first manifold connector 21 are more convenient to install, and meanwhile, the connection strength of the heat exchange piece 1 and the first manifold piece 2 can be improved, so that the static pressure resistance and the explosion resistance at the inlet of the heat exchange piece 1 can be improved.

In some embodiments of the present utility model, as shown in fig. 6, further comprising: and a sealing member 4, wherein the sealing member 4 is sleeved outside the first connecting pipe portion 211 and is positioned between the first connecting pipe portion 211 and the inner wall of the first connecting hole 111, so that the sealing member 4 seals the gap between the first connecting pipe portion 211 and the inner wall of the first connecting hole 111.

Specifically, when the bus inlet joint 11 and the first collecting joint 21 are mounted in a matched manner, the sealing element 4 is first sleeved outside the first connecting pipe portion 211 of the first collecting joint 21, and the first connecting pipe portion 211 provided with the sealing element 4 is inserted into the first connecting hole 111, so that the sealing element 4 is located between the first connecting pipe portion 211 and the inner wall of the first connecting hole 111, gaps between the outer side of the first connecting pipe portion 211 and the inner wall of the first connecting hole 111 can be filled, the sealing function of the sealing element 4 is achieved, and the sealing function between the bus inlet joint 11 and the first collecting joint 21 is improved.

In some embodiments of the present utility model, as shown in fig. 6, the outer circumferential wall of the first connection pipe portion 211 of the first collecting tab 21 is provided with a mounting groove 2111, and the sealing member 4 is mounted in the mounting groove 2111. That is, taking the first collecting connector 21 as an example, the sealing member 4 is mounted in the mounting groove 2111 of the outer peripheral wall of the first connecting tube portion 211, the mounting groove 2111 may be split, semi-open or closed, and the sealing member 4 is firmly sleeved on the first connecting tube portion 211 through the mounting groove 2111, so as to avoid the falling of the sealing member 4 in the use process, thereby being beneficial to improving the sealing effect.

In some embodiments of the present utility model, as shown in fig. 7 to 10, the bus inlet connector 11 has a first socket portion 113, and the first header connector 21 has a second socket portion 213, and the first socket portion 113 is inserted into the second socket portion 213, so that the bus inlet connector 11 and the first header connector 21 are fixed.

Specifically, when the heat exchange medium in the heat exchange member 1 is cooling liquid, the pressure at the inlet and the outlet of the heat exchange member 1 is smaller, the utility model takes the busbar inlet joint 11 and the first current collecting joint 21 as an example, the first plug-in part 113 and the second plug-in part 213 are respectively arranged on the busbar inlet joint 11 and the first current collecting joint 21, the first plug-in part 113 is inserted into the second plug-in part 213 to realize the fixed connection of the busbar inlet joint 11 and the first current collecting joint 21, and alternatively, the first plug-in part 113 and the second plug-in part 213 can be quick plug-in joints which are correspondingly arranged, that is, the plug-in connection of the busbar inlet joint 11 and the first current collecting joint 21 and the communication of the first current collecting member 2 and the heat exchange member 1 are realized through the quick plug-in joints, so that the first current collecting joint 21 and the busbar inlet joint 11 can be directly inserted into the first current collecting joint 21 are conveniently installed, and the installation efficiency is improved.

In other embodiments of the present utility model, the first header joint 21 of the first header 2 may also be fixed together by welding or snap-fit connection with the header inlet joint 11 to achieve a fixed assembly of the two. Likewise, the second header 31 of the second header 3 may also be secured together by welding or snap-fit connection with the manifold outlet header 12. The specific combination of the two is not limited in the utility model, and other conventional fixing combination modes are adopted besides the embodiment.

In some embodiments of the present utility model, the manifold inlet header 11 and the manifold outlet header 12 are identical in construction and the first manifold header 21 and the second manifold header 31 are identical in construction. That is, the manifold inlet joint 11 and the manifold outlet joint 12 of each heat exchange member 1 have the same structure, the first manifold joint 21 of the first manifold member 2 and the second manifold joint 31 of the second manifold member 3 have the same structure, and the arrangement is such that the manifold outlet joint 12 and the manifold inlet joint 11 have the same function, the second manifold joint 31 and the first manifold joint 21 have the same function, and the beneficial effects of the fitting of the manifold outlet joint 12 and the second manifold joint 31 are consistent with the beneficial effects of the fitting of the manifold inlet joint 11 and the first manifold joint 21, and at the same time, the versatility of the parts is improved, the replacement and the installation between the parts are facilitated, the installation efficiency is improved, and the improvement of the universality of the parts is also reduced, and the design and the production cost is reduced.

In some embodiments of the present utility model, as shown in fig. 11 to 13, the heat exchange member 1 further includes: the heat exchange member body 13, a first flow passage 131 and a second flow passage 132 are formed in the heat exchange member body 13, one end of the first flow passage 131 is communicated with one end of the second flow passage 132, the other end of the first flow passage 131 is communicated with the confluence inlet joint 11, and the other end of the second flow passage 132 is communicated with the confluence outlet joint 12.

Specifically, as shown in fig. 11, the heat exchange member 1 further includes a heat exchange member body 13, as shown in fig. 12, fig. 12 is a sectional view taken along the C-C plane in fig. 11, further, as shown in fig. 13, fig. 13 is an enlarged view taken at D in fig. 12, as a specific example, the heat exchange member body 13 is composed of a confluence member, a heat exchange plate and a penetration member, the heat exchange plate defines a flow passage in which a first partition plate is provided, and the first partition plate extends in the length direction of the heat exchange plate to divide the flow passage into a first flow passage 131 and a first flow passage 131; the through member is arranged at one end of the heat exchange plate, optionally, the through member is welded at one end of the heat exchange plate, and the through member defines a through cavity with one open end, and the through cavity is used for communicating the first flow channel 131 and the second flow channel 132; the converging piece is arranged at the other end of the heat exchange plate, optionally, the converging piece is welded at the other end of the heat exchange plate, the converging piece defines a converging cavity with one open end, a second partition plate is arranged in the converging cavity, the second partition plate is opposite to the first partition plate and is mutually abutted to the first partition plate, so that the second partition plate divides the converging cavity into a first flow passage 131 and a second flow passage 132 which are communicated with the heat exchange plate, the first flow passage 131 of the converging piece is communicated with the converging inlet joint 11, and the second flow passage 132 of the converging piece is communicated with the converging outlet joint 12.

When the cooling module 100 is operated, the heat exchange medium flows into the first flow channel 131 from the confluence inlet joint 11 and flows along the first flow channel 131, and when the heat exchange medium reaches the communication position of the first flow channel 131 and the second flow channel 132, namely after the heat exchange medium flows into the second flow channel 132, the flowing direction is changed, and finally the heat exchange medium flows out from the confluence outlet joint 12, so that the heat exchange medium circulation of the heat exchange member body 13 is realized. Therefore, the U-shaped design of the heat exchange flow channel is realized by arranging the first flow channel 131 and the second flow channel 132 which are connected at one end of the heat exchange piece body 13, the space of the heat exchange piece 1 is saved, and meanwhile, the battery can contact heat exchange media with more similar temperature, so that the uniformity of the heat exchange effect is improved.

In some embodiments of the present utility model, as shown in fig. 13, a partition plate 133 is provided in the first flow passage 131 and/or the second flow passage 132, and the partition plate 133 partitions the respective flow passages into a plurality of sub-flow passages 134.

Specifically, the first flow channel 131 may be provided therein with a partition plate 133, or the second flow channel 132 may be provided therein with a partition plate 133, or the first flow channel 131 and the second flow channel 132 may be provided therein with a partition plate 133 at the same time, as shown in fig. 13, the present utility model is described by taking the case that the first flow channel 131 and the second flow channel 132 are provided therein with a partition plate 133 at the same time, wherein the partition plates 133 in the first flow channel 131 and the second flow channel 132 are provided in the heat exchange plate, the number of the partition plates 133 in the first flow channel 131 and the second flow channel 132 is set according to the circumstances, the partition plates 133 divide the first flow channel 131 and the second flow channel 132 in the heat exchange plate into a plurality of sub-flow channels 134, respectively, when the heat exchange medium flows from the confluence inlet joint 11 into the first flow channel 131 of the confluence member, the heat exchange medium flows along the plurality of sub-flow channels 134 divided by the first flow channel 131 in the heat exchange plate, and after the heat exchange medium reaches the through member, the heat exchange medium flows along the plurality of sub-flow channels 134 divided by the second flow channel 132 in the heat exchange plate, and the flow direction is changed, and finally the heat exchange medium flows into the confluence member 12, and the heat exchange medium flows out of the confluence member 13 from the outlet joint 12. By arranging the plurality of sub-flow passages 134 in the first flow passage 131 and/or the second flow passage 132, the flow speed of the heat exchange medium in the heat exchange member body 13 can be increased, the heat exchange effect of the heat exchange medium and the battery is improved, and the heat exchange performance of the heat exchange member 1 is improved.

In some embodiments of the present utility model, the cross-sectional shape of the sub-flow path 134 is circular or polygonal. That is, the cross-sectional shape of the sub-flow channel 134 formed in the first flow channel 131 and/or the second flow channel 132 may be circular, or may be polygonal, for example, quadrangular, hexagonal, etc., and it should be noted that the cross-sectional shape of the sub-flow channel 134 is set according to the specific heat exchange efficiency requirement and the pressure drop requirement, which is not specifically described herein, and by setting the sub-flow channel 134 with a suitable cross-sectional shape, the heat exchange efficiency can be improved while the pressure drop requirement is satisfied, thereby being beneficial to further improving the heat exchange performance of the heat exchange member 1.

In some embodiments of the present utility model, as shown in fig. 1-3, the first header 2 further has a first header 22 in communication with each of the plurality of first header connectors 21, the first header 22 having an inlet end 221, and the second header 3 further has a second header 32 in communication with each of the plurality of second header connectors 31, the second header 32 having an outlet end 321, the inlet end 221 and/or the outlet end 321 being connected to the communicating member 5.

Specifically, as shown in fig. 1 to 3, the heat exchange medium flows into the first collecting header 21 from the inlet end 221 of the first collecting header 22 and flows into the corresponding heat exchange member 1 from the first collecting header 21, respectively, and after the heat exchange cycle of the corresponding heat exchange member 1 is completed, the heat exchange medium flows into the second collecting header 32 from the second collecting header 31 of the corresponding heat exchange member 1 and flows out from the outlet end 321 of the second collecting header 32, wherein the first collecting header 22 and the second collecting header 32 may be metal pipes as long as the working pressure requirement of the heat exchange medium is satisfied. Further, the inlet end 221 and/or the outlet end 321 are/is connected with the communicating member 5, that is, the inlet end 221 may be connected with the communicating member 5, or the outlet end 321 may be connected with the communicating member 5, or both the inlet end 221 and the outlet end 321 are connected with the communicating member 5, as shown in fig. 1-3, the utility model uses the inlet end 221 and the outlet end 321 both connected with the communicating member 5 as an example to describe, the communicating member 5 may be an air conditioner high-pressure hose, and the air conditioner high-pressure hose not only meets the working pressure requirement of the heat exchange medium, but also facilitates the assembly of the communicating member 5 with the inlet end 221 and the outlet end 321, and reduces the requirement of the position tolerance of the inlet end 221 and the outlet end 321.

As shown in fig. 14 and 15, a battery pack 200 according to an embodiment of the second aspect of the present utility model includes: battery cell 201 and cooling assembly 100. Wherein the cooling assembly 100 is the cooling assembly 100 in the embodiment of the first aspect, the heat exchanging member 1 is adapted to be in contact with the battery cell 201.

Specifically, the battery pack 200 includes a plurality of battery cells 201, the heat exchange members 1 are suitable for contacting with the battery cells 201, wherein, a plurality of battery cells 201 which are arranged in sequence form a battery column, the battery pack 200 includes a plurality of battery columns, and a group of battery columns are arranged between adjacent heat exchange members 1, so that two heat exchange members 1 can exchange heat with one battery cell 201 at the same time, and the heat exchange efficiency is improved. Further, the heat exchange member 1 is adapted to the outer surface of the battery cell 201, as shown in fig. 14 and 15, if the outer surface of the battery cell 201 is cylindrical, the heat exchange member 1 is arranged in a wavy manner, so that the heat exchange member 1 contacts with the battery cell 201 more fully, thereby being beneficial to improving the heat exchange effect of the cooling assembly 100.

According to the battery pack 200 of the embodiment of the utility model, by arranging the cooling assembly 100, two heat exchange pieces 1 exchange heat with one battery cell 201 at the same time, so that the heat exchange efficiency is improved, and meanwhile, the heat exchange pieces 1 are matched with the outer surface of the battery cell 201, so that the heat exchange pieces 1 are in contact with the battery cell 201 more fully, and the heat exchange effect of the cooling assembly 100 is improved.

It should be noted that, unless explicitly stated or limited otherwise, 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; 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 will be understood in specific cases by those of ordinary skill in the art.

In the description of the present specification, reference to the terms "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples," etc., means 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 utility model. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. 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 utility model have been shown and described, it will be understood by those of ordinary skill in the art that: many changes, modifications, substitutions and variations may be made to the embodiments without departing from the spirit and principles of the utility model, the scope of which is defined by the claims and their equivalents.

Claims (12)

1. A cooling assembly, comprising:

the heat exchange part comprises a plurality of heat exchange pieces, the plurality of heat exchange pieces are sequentially distributed along the first direction of the cooling assembly, and each heat exchange piece comprises a converging inlet joint and a converging outlet joint;

a first current collector and a second current collector, the first current collector and the second current collector being positioned on the same side of the heat exchange part, the first current collector being connected with a plurality of first current collector joints, the plurality of first current collector joints being connected with the corresponding current collector inlet joints so as to communicate the first current collector with the corresponding heat exchange part,

the second collecting piece is connected with a plurality of second collecting connectors, and a plurality of second collecting connectors are connected with corresponding collecting outlet connectors so that the second collecting piece and the corresponding heat exchange piece are communicated.

2. The cooling assembly of claim 1, wherein the first header is plugged with the manifold inlet and the second header is plugged with the manifold outlet.

3. The cooling assembly of claim 2, wherein the manifold inlet header has a first communication aperture, the first manifold header has a first connection tube portion that fits within the first communication aperture to communicate the first manifold and the heat exchange member, and the manifold inlet header and the first manifold header are secured by fasteners.

4. The cooling assembly of claim 3, wherein the manifold inlet header further has a first mounting hole, the first manifold header further has a second mounting hole corresponding to the first mounting hole, and the fastener is threaded through the first and second mounting holes.

5. A cooling assembly according to claim 3, further comprising: the sealing piece is sleeved outside the first connecting pipe part and is positioned between the first connecting pipe part and the inner wall of the first connecting hole, so that the sealing piece seals a gap between the first connecting pipe part and the inner wall of the first connecting hole.

6. The cooling assembly of claim 5, wherein the outer peripheral wall of the first connecting tube portion is provided with a mounting groove in which the seal is mounted.

7. The cooling assembly of claim 2, wherein the manifold inlet connector has a first mating portion and the first manifold connector has a second mating portion, the first mating portion mating within the second mating portion to secure the manifold inlet connector and the first manifold connector.

8. The cooling assembly of any of claims 2-7, wherein the manifold inlet and outlet header are identical in structure and the first and second header are identical in structure.

9. The cooling assembly of any one of claims 1-7, wherein the heat exchange member further comprises: the heat exchange member comprises a heat exchange member body, wherein a first flow channel and a second flow channel are formed in the heat exchange member body, one end of the first flow channel is communicated with one end of the second flow channel, the other end of the first flow channel is communicated with the confluence inlet joint, and the other end of the second flow channel is communicated with the confluence outlet joint.

10. The cooling module of claim 9, wherein a divider plate is disposed within the first flow passage and/or the second flow passage, the divider plate dividing the respective flow passage into a plurality of sub-flow passages.

11. The cooling assembly of claim 1 wherein the first header further has a first header in communication with each of the plurality of first header connectors, the first header having an inlet end, the second header further having a second header in communication with each of the plurality of second header connectors, the second header having an outlet end, the inlet end and/or the outlet end being connected with a communication member.

12. A battery pack, comprising:

a battery cell;

a cooling assembly according to any one of claims 1-11, the heat exchange member being adapted to be in contact with the battery cell.