CN218410849U

CN218410849U - Heat exchanger

Info

Publication number: CN218410849U
Application number: CN202221610387.9U
Authority: CN
Inventors: 请求不公布姓名
Original assignee: Shaoxing Sanhua New Energy Auto Parts Co ltd
Current assignee: Shaoxing Sanhua New Energy Auto Parts Co ltd
Priority date: 2022-06-24
Filing date: 2022-06-24
Publication date: 2023-01-31
Anticipated expiration: 2032-06-24

Abstract

A heat exchange device comprises a first heat exchanger, wherein the first heat exchanger comprises a first plate and a second plate, a first circulation channel is arranged between the first plate and the second plate, the first circulation channel comprises a first main channel, a second main channel and a plurality of heat exchange channels, a first port of each heat exchange channel is communicated with the first main channel, a second port of each heat exchange channel is communicated with the second main channel, the first heat exchanger is provided with a first port and a second port, the first port is an inlet, the second port is an outlet, the first port is communicated with the first main channel, the second port is communicated with the second main channel, and the communication area between at least part of the heat exchange channels close to the first port and the first main channel is smaller than the communication area between at least part of the heat exchange channels far away from the first port and the first main channel, so that the fluid flow of the plurality of heat exchange channels is adjusted, and the temperature uniformity of the heat exchanger is improved.

Description

Heat exchanger

Technical Field

The application relates to the technical field of heat exchange, in particular to a heat exchange device.

Background

The water-cooling board generally includes two slab, sets up the circulation passageway between two slab, and the circulation passageway has import and export and supplies heat transfer fluid to flow in and flow out heat transfer passageway, and apart heat transfer passageway nearer apart from the import, the lower heat transfer performance of cooling water temperature is better, and apart heat transfer passageway far away from the import, the temperature of the cooling water of distributing is higher usually, and heat transfer performance is relatively poor, leads to the temperature uniformity of water-cooling board relatively poor.

SUMMERY OF THE UTILITY MODEL

The purpose of the application is to provide a heat exchange device with better temperature uniformity.

One embodiment of the present application provides a heat exchange apparatus, including a first heat exchanger including a first plate and a second plate, the first plate and the second plate having a first circulation passage therebetween, the first circulation passage including a first main passage, a second main passage and a plurality of heat exchange passages, a first port of the heat exchange passage being in communication with the first main passage, a second port of the heat exchange passage being in communication with the second main passage, the first heat exchanger having a first port and a second port, the first port being an inlet, the second port being an outlet, the first port being in communication with the first main passage, the second port being in communication with the second main passage;

a communication area between at least a portion of the heat exchange channel closer to the first port and the first main channel is smaller than a communication area between at least a portion of the heat exchange channel farther from the first port and the first main channel.

According to the technical scheme, the communicating area between the at least part of the heat exchange channels close to the first port and the first main channel is smaller than the communicating area between the at least part of the heat exchange channels far away from the first port and the first main channel, so that the fluid flow of the heat exchange channels is adjusted, and the temperature uniformity of the first heat exchanger is improved.

Drawings

FIG. 1 is a schematic perspective view of a first heat exchanger according to an embodiment of the present application;

FIG. 2 is an exploded view of the heat exchanger shown in FIG. 1;

FIG. 3 is a schematic view of a second plate of the heat exchanger of FIG. 1;

FIG. 4 is an enlarged partial view of a portion of the structure of the second plate shown in FIG. 3;

FIG. 5 is an enlarged partial view of still another portion of the second plate shown in FIG. 3;

FIG. 6 is a schematic perspective view of a heat exchange device;

FIG. 7 is a schematic perspective view of a second heat exchanger in the heat exchange unit of FIG. 6;

FIG. 8 is a schematic view of a third plate of the heat exchanger of FIG. 7;

fig. 9 is a schematic view of the fourth plate of the heat exchanger shown in fig. 7.

Detailed Description

Specific embodiments will now be described in detail with reference to the accompanying drawings. In the following detailed description, for purposes of explanation and not limitation, numerous specific details are set forth, such as examples, in order to provide a thorough understanding of the present invention, but it will be appreciated by one skilled in the art that the specific components, devices, and features illustrated in the drawings and described herein are merely exemplary and should not be considered as limiting.

Fig. 1 to 5 show a structure of a first heat exchanger 10, fig. 6 shows a structure of a heat exchange apparatus 100 including the first heat exchanger 10, and fig. 7 to 9 show a structure of a second heat exchanger 20 of the heat exchange apparatus 100 shown in fig. 6. As shown in fig. 1 to 5, the first heat exchanger 10 includes a first plate 11 and a second plate 12, a first circulation channel 3 is provided between the first plate 11 and the second plate 12, the first circulation channel 3 has an inlet and an outlet, a fluid flows into the first heat exchanger 10 from the inlet, and flows out from the outlet after flowing through the first circulation channel 3, the fluid in the first circulation channel 3 exchanges heat with an object to be heated outside the first plate 11 through the first plate 11, or exchanges heat with an object to be heated outside the second plate 12 through the second plate 12, or exchanges heat with an object to be heated outside a corresponding plate through the first plate 11 and the second plate 12, for example, a battery is provided outside the first plate 11 and/or the second plate 12, cooling water flows through the first circulation channel 3, and the cooling water takes heat of the battery away, so as to reduce the temperature of the battery, thereby increasing the service life of the battery. It should be noted that the first flow channel 3 may be formed by processing a concave-convex structure on the first plate 11 and matching with the second plate 12, for example, welding and fixing the first flow channel 3, or may be formed by processing a concave-convex structure on the second plate 12, the first plate 11 is a flat plate, the second plate 12 is welded and fixed with the first plate 11 to form the first flow channel 3, this embodiment is the same manner, and of course, a concave-convex structure may be processed on both the first plate 11 and the second plate 12, and the first plate 11 and the second plate 12 match to form the first flow channel 3.

As shown in fig. 3, 6, and 9, the horizontal direction in the drawing is a first direction, that is, the direction N in the drawing is a first direction, the vertical direction in the drawing is a second direction, that is, the direction M in the drawing is a second direction, and the second direction and the first direction are arranged perpendicularly, and along the first direction, the first heat exchanger 10 has a first side 103 and a second side 104, and along the second direction, the first heat exchanger 10 has a third side 101 and a fourth side 102, and as shown in fig. 3, the left side is the first side 103, the right side is the second side 104, the upper side is the third side 101, and the lower side is the fourth side 102.

The first circulation channel 3 includes a first main channel 31, a second main channel 32 and a plurality of heat exchange channels 33, wherein a first port 3301 of the heat exchange channel 33 is communicated with the first main channel 31, a second port 3302 of the heat exchange channel 33 is communicated with the second main channel 32, in some embodiments, as shown in fig. 1 and 3, the first main channel 31 is close to the third side 101 of the heat exchanger 10, the second main channel 32 is close to the fourth side 102 of the heat exchanger 10, and the first main channel 31 and the second main channel 32 extend generally along the first direction, in particular, the first main channel 31 and the second main channel 32 may extend straight along the first direction, or extend obliquely, or have an arc section or a bent section, etc., as shown in fig. 3, and the first main channel 31 and the second main channel 32 have an oblique section. The first heat exchanger 10 has a first port 13 and a second port 14, one of the first port 13 and the second port 14 is an inlet, the other is an outlet, the first port 13 is communicated with the first main channel 31, the second port 14 is communicated with the second main channel 32, and the first port 13 and the second port 14 are located on the same side of the first heat exchanger 10 along the first direction, i.e. the first port 13 and the second port 14 are both close to the first side portion 103 of the first heat exchanger 10, or the first port 13 and the second port 14 are both close to the second side portion 104 of the first heat exchanger 10, in the present embodiment, as shown in fig. 1 to 3, the first port 13 and the second port 14 are both close to the first side portion 103 of the first heat exchanger 10. Of course, the first port 13 and the second port 14 may also be located on different sides of the first heat exchanger 10 in the first direction, and the first port 13 and the second port 14 may be located on different sides, which may result in a more uniform distribution of fluid in each heat exchange channel 33 than on the same side.

In some embodiments, as shown in fig. 3, the second main channel 32 includes a first section of flow channel 321, the first section of flow channel 321 extends along the second direction, although the first section of flow channel 321 may also extend obliquely or bend along the second direction, one end of the first section of flow channel 321 communicates with the second port 14, the heat exchange channel 33 near the second port 14 is defined as a first heat exchange channel 331, the first port 3314 of the first heat exchange channel 331 communicates with the first main channel 31, the second port 3315 of the first heat exchange channel 331 communicates with the second main channel 32, the first section of flow channel 321 communicates with the second port 14 and the second port 3315 of the first heat exchange channel 331, when the second port 14 is an outlet, the first section of flow channel 321 is located downstream of the first heat exchange channel 331, and when the second port 14 is an inlet, the first section of flow channel 321 is located upstream of the first heat exchange channel 331.

As shown in fig. 3 and 4, in the second direction, the minimum distance between the first segment flow passage 321 and the first main passage 31 is smaller than the minimum distance between the second port 3315 of the first heat exchange passage 331 and the first main passage 31, the minimum distance between the first port 13 and the second port 14 in the second direction is smaller than the minimum distance between the second port 3315 of the first heat exchange passage 331 and the first main passage 31, at least a part of the first heat exchange passage 331 is located between the first segment flow passage 321 and the first main passage 31, and the space between the first segment flow passage 321 and the first main passage 31 is used, so that the heat exchange area of the first heat exchanger 10 is increased. As shown in fig. 3, the first port 13 communicated with the first main channel 31 is an inlet, the second port 14 communicated with the second main channel 32 is an outlet, the length of the first main channel 31 is smaller than the length of the second main channel 32, and the average width of the first main channel 31 is smaller than the average width of the second main channel 32, so as to reduce the pressure drop of the second main channel 32, reduce the overall flow resistance of the first heat exchanger 10, and improve the heat exchange performance of the first heat exchanger 10. In some embodiments, as shown in fig. 3 and 4, the average width of the first section of the flow channels 321 is greater than the average width of the first main channel 31, and since the first section of the flow channels 321 is close to the outlet, the first section of the flow channels 321 is the position where the flow rate of the whole first heat exchanger 10 is maximum, so as to ensure that the first section of the flow channels 321 has a sufficient width, increase the flow cross section of the first section of the flow channels 321, and significantly reduce the pressure drop of the whole first heat exchanger 10.

As shown in fig. 1 to 5, the first main channel 31 is provided with a first blocking portion 34, the second main channel 32 is provided with a second blocking portion 35, the first blocking portion 34 is elongated, the first blocking portion 34 extends along the extending direction of the first main channel 31, of course, the first blocking portion 34 may be circular or in other shapes, the second blocking portion 35 is elongated, the second blocking portion 35 extends along the extending direction of the second main channel 32, of course, the second blocking portion 35 may be circular or in other shapes, specifically, as shown in fig. 2 and 3, the first blocking portion 34 and the second blocking portion 35 are formed by a protruding structure of the second plate 12, and the tops of the first blocking portion 34 and the second blocking portion 35 are welded and fixed to the inner side surface of the first plate 11, so as to improve the structural strength of the first main channel 31 and the second main channel 32, and avoid deformation caused by insufficient strength due to excessively wide flow channels of the first main channel 31 and the second main channel 32.

As shown in fig. 3-5, in some embodiments, the first heat exchanging channel 331 includes a first section of channel 3311, a second section of channel 3312, and a third section of channel 3313, the first section of channel 3311, the second section of channel 3312, and the third section of channel 3313 are arranged in a first direction, the first section of channel 3311, the second section of channel 3312, and the third section of channel 3313 extend in a second direction, the first section of channel 3311 is in communication with the first main channel 31, the second section of channel 3312 is in communication with the first section of channel 3311 and the third section of channel 3313, the third section of channel 3313 is in communication with the second main channel 32, the first heat exchanging channel 331 has a serpentine configuration, wherein the first section of channel 3311 and the second section of channel 3312 are located between the first section of channel 321 and the first main channel 31, and the third section of channel 3313 has a length greater than the first section of channel 3311 and the second section of channel 3312, of course, the first heat exchanging channel 331 may include more than the first section of channel 33110, and the heat exchanging channels 33113 may be more flexibly installed than the first section of channel 33110, and the heat exchanger may be more flexibly installed to accommodate the pressure drop of the heat exchanging channel 33110.

In some embodiments, the heat exchanging channels 33 include a second heat exchanging channel 332, as shown in fig. 4, the first port 3314 of the first heat exchanging channel 331 is directly communicated with the first port 3324 of the second heat exchanging channel 332, the first and second heat exchanging channels 331 and 332 are communicated with the first main channel 31 through the first reduced port 71, the second port 3315 of the first heat exchanging channel 331 and the second port 3325 of the second heat exchanging channel 332 are respectively communicated with the second main channel 32, the second heat exchanging channel 332 includes a first section channel 3321, a second section channel 3322 and a third section channel 3323 which are arranged in a serpentine shape like the first heat exchanging channel 331, the first and second heat exchanging channels 331 and 332 constitute a first set of heat exchanging channels, as shown in fig. 3, the first heat exchanger 10 has four sets of the first set of heat exchanging channels. Wherein, the first section channel 3321 of the second heat exchanging channel 332 is communicated with the first main channel 31, the second section channel 3322 of the second heat exchanging channel 332 is communicated with the first section channel 3321 of the second heat exchanging channel 332 and the third section channel 3323 of the second heat exchanging channel 332, the third section channel 3323 of the second heat exchanging channel 332 is communicated with the second main channel 32, like the first heat exchanging channel 331, the second heat exchanging channel 332 can be more than three sections channels, the length of the first section channel 3321 of the second heat exchanging channel 332 of the first group of heat exchanging channels close to the first port 13 and the second port 14 is larger than that of the first section channel 3311 of the first heat exchanging channel 331, the first heat exchanging channel 331 and the second heat exchanging channel 332 adopt an asymmetric structure, and by shortening the first section channel 3311 and the second section channel 3312 of the first heat exchanging channel 331, more space is provided for the first section channel 321 to ensure the width of the first section channel 3311, so that the fluid in the first circulating channel 321 can flow out of the first circulating channel 3 more smoothly, thereby reducing the pressure drop of the whole first heat exchanging channel 33110.

As shown in fig. 3 and 5, the first heat exchanger 10 further comprises a second group of heat exchange channels, the second group of heat exchange channels comprises a third heat exchange channel 333 and a fourth heat exchange channel 334, wherein each first group of heat exchange channels is closer to the first port 13 and the second port 14 than the second group of heat exchange channels, a first port of the third heat exchange channel 333 is directly communicated with a first port of the fourth heat exchange channel 334 and is communicated with the first main channel 31 through a fifth reducing 75, a second port of the third heat exchange channel 331 and a second port of the fourth heat exchange channel 334 are respectively communicated with the second main channel 32, the third heat exchange channel 333 comprises a first section channel 3331, a second section channel 3332 and a third section channel 3333 which are arranged in a serpentine shape like the first heat exchange channel 331, the fourth heat exchange channel 334 comprises a first section channel 3343, a second section channel 3342 and a third section channel 3341 which are arranged in a serpentine shape like the first heat exchange channel 331, the first section channel 3331 of the third heat exchanging channel 333 communicates with the first main channel 31, the second section channel 3332 of the third heat exchanging channel 333 communicates with the first section channel 3331 of the third heat exchanging channel 333 and the third section channel 3333 of the third heat exchanging channel 333, the third section channel 3333 of the third heat exchanging channel 333 communicates with the second main channel 32, the first section channel 3343 of the fourth heat exchanging channel 334 communicates with the first main channel 31, the second section channel 3342 of the fourth heat exchanging channel 334 communicates with the first section channel 3343 and the third section channel 3341 of the fourth heat exchanging channel 334, the third section channel 3341 of the fourth heat exchanging channel 334 communicates with the second main channel 32, the third heat exchanging channel 334 and the fourth heat exchanging channel 334 may have more than three sections as with the first heat exchanging channel 331, and the sum of the lengths of the third heat exchanging channel 333 and the fourth heat exchanging channel 334 is greater than the sum of the lengths of the first heat exchanging channel 331 and the second heat exchanging channel 332, or the length of the third heat exchange channel 333 or the fourth heat exchange channel 334 is greater than that of the second heat exchange channel 332, so as to preferentially ensure the heat exchange performance of the first group of heat exchange channels close to the first port 13 and the second port 14, and concentrate the heat exchange channels with poorer heat exchange performance together, thereby improving the heat exchange performance of the second group of heat exchange channels by locally increasing the flow rate of the heat exchange fluid or increasing the number of the heat exchangers.

In some embodiments, the second set of heat exchange channels is two, and the other second set of heat exchange channels comprises a fifth heat exchange channel and a sixth heat exchange channel, the first port of the fifth heat exchange channel is directly communicated with the first port of the sixth heat exchange channel, and is communicated with the first main channel 31 through a sixth throat 76, the second port of the fifth heat exchange channel and the second port of the sixth heat exchange channel are respectively communicated with the second main channel 32, the fifth heat exchange channel comprises a first section of channel 3351, a second section of channel 3352 and a third section of channel 3353 which are arranged in a snake shape, the sixth heat exchange channel comprises a first section of channel 3361, a second section of channel 3362 and a third section of channel 3363 which are arranged in a snake shape, wherein the first section 3351 of the fifth heat exchange channel is communicated with the first main channel 31, the second section 3352 of the fifth heat exchange channel is communicated with the first section 3351 of the fifth heat exchange channel and the third section 3353 of the fifth heat exchange channel 333, the third section 3353 of the fifth heat exchange channel is communicated with the second main channel 32, the first section 3361 of the sixth heat exchange channel is communicated with the first main channel 31, the second section 3362 of the sixth heat exchange channel is communicated with the first section 3361 and the third section 3363 of the sixth heat exchange channel, the third section 3363 of the sixth heat exchange channel is communicated with the second main channel 32, like the first heat exchange channel 331, the fifth heat exchange channel and the sixth heat exchange channel can be more than three sections, also, the first section flow channel 3351 of the fifth heat exchange channel has substantially the same length as the first section flow channel 3331 of the third heat exchange channel 333, the first section flow channel 3361 of the sixth heat exchange channel has a length greater than the first section flow channel 3343 of the fourth heat exchange channel 334, and the third section channel 3363 of the sixth heat exchange channel is directly communicated with the second end 323 of the second main channel 32.

In some embodiments, the communication area between at least a portion of the heat exchange channels 33 closer to the first port 13 and the first main channel 31 is smaller than the communication area between at least a portion of the heat exchange channels 33 farther from the first port 13 and the first main channel 31, and as shown in fig. 3 in particular, the first heat exchanger 10 includes four sets of first set heat exchange channels and two sets of second set heat exchange channels, the first set heat exchange channels are closer to the first port 13 than the second set heat exchange channels, the communication area between two sets of first set heat exchange channels and the first main channel 31 closer to the first port 13, as shown in fig. 3, i.e., the flow area of the first and

second sinks

71, 72, is smaller than the communication area between two sets of first set heat exchange channels and the first main channel 31 relatively far from the first port 13, i.e., the flow area of the third and

fourth sinks

73, 74, the communication area between two sets of second set heat exchange channels and the first main channel 31, i.e., the flow area of the fifth and sixth sinks 76, is larger than the communication area between each first set heat exchange channels and the first main channel 31, and the flow area of the fifth and the first set heat exchange channels is smaller than the flow area of each heat exchange channels, and the first set heat exchange channels, and the first heat exchange channels are gradually increased along the direction of the first heat exchange channels, and the first heat exchange channels 13, and the flow direction of the first heat exchange channels are gradually increased, and the first heat exchange channels 13, and the flow direction of the first heat exchange channels, and the second heat exchange channels are gradually increased.

In some embodiments, the first heat exchanger 10 includes a first port 13, a second port 14 and a third port 15, the first port 13 and the third port 15 are communicated with the first main channel 31, the second port 14 is communicated with the second main channel 32, at least a portion of the first port 3301 of the heat exchange channel 33 is communicated with the first main channel 31 between the first port 13 and the third port 15, as shown in fig. 2, the first heat exchanger 10 includes a first port 13, a second port 14, a third port 15 and a fourth port 16, the first port 13 and the third port 15 are communicated with the first main channel 31, the second port 14 and the fourth port 16 are communicated with the second main channel 32, the first main channel 31 includes a first end 311 and a second end 312 in a first direction, the second main channel 32 includes a third end 322 and a fourth end 323, wherein the first end 311 and the first end 322 are close to the first side 103 of the first heat exchanger 10, the second end 312 and the fourth end 323 are close to the first side 104 of the first heat exchanger 10, the first port 312 and the fourth port 3301 and the eighth port 3302 is communicated with the first main channel 3301, the first port 3301 is communicated with the heat exchange channel 33, the fourth port 3302 is located between the first port 3301 and the eight heat exchange channel 33 is communicated with the first port 3301, and the first port 3302. Of course, the third port 15 may be located at the second end 312, and the first ports 3301 of all the heat exchange channels 33 communicate with the first main channel 31 located between the first port 13 and the third port 15. Specifically, the first port 13 and the third port 15 are inlets, the second port 14 and the fourth port 16 are outlets, and fluid is supplemented through the third port 15, so that a certain temperature difference is ensured between the temperature of the fluid in a part of the heat exchange channel 33 far away from the first port 13 and an object to be heated, and the heat exchange performance of the part of the heat exchange channel 33 is ensured. Of course, the first heat exchanger 10 may not be provided with the fourth port 16, and the fluid after heat exchange is enabled to leave the first heat exchanger 10 more quickly by providing the fourth port 16, so as to reduce the overall pressure drop of the first heat exchanger 10 and improve the heat exchange performance of the first heat exchanger 10.

In some embodiments, as shown in fig. 3, the second plate 12 has a first protrusion 36 and a second protrusion 37 protruding toward the first plate 11, the first protrusion 36 is adjacent to the third port 15, the second protrusion 37 is adjacent to the fourth port 16, and the first protrusion 36 is located on the side of the third port 15 close to the first port 13, so that the fluid entering from the third port 15 flows to the part of the heat exchange channel 33 away from the first port 13, thereby making the heat exchange of the first heat exchanger 10 more uniform.

In some embodiments, referring to fig. 1 and 2, the first port 13 is located at the first end 311 of the first main channel, the second port 14 may be located at the fourth end 323 of the second main channel 32, the first port 3301 of a portion of the heat exchange channel 33 communicates with the first main channel 31 between the first port 13 and the third port 15, the second port 3302 of the portion of the heat exchange channel 33 communicates with the second main channel 32 between the third port 322 and the fourth port 16, the first port 3301 of another portion of the heat exchange channel 33 communicates with the first main channel 31 between the third port 15 and the second port 312, and the second port 3302 of the portion of the heat exchange channel 33 communicates with the second main channel 32 between the fourth port 16 and the second port 14.

In some embodiments, as shown in fig. 6 to 9, the heat exchange device 100 includes a second heat exchanger 20, the second heat exchanger 20 includes a third plate 21 and a fourth plate 22, a second circulation channel 4 is provided between the third plate 21 and the fourth plate 22, the second heat exchanger 20 has a fifth port 23 and a sixth port 24, the fifth port 23 is communicated with one end of the second circulation channel 4, and the sixth port 24 is communicated with the other end of the second circulation channel 4, as shown in fig. 6, the heat exchange device 100 further includes a first connecting pipe 5 and a second connecting pipe 6, the first connecting pipe 5 is communicated with the third port 15 and the fifth port 23, the second connecting pipe 6 is communicated with the fourth port 16 and the sixth port 24, and through the arrangement of the first connecting pipe 5 and the second connecting pipe 6, the third port 15 and the fifth port 23 can be simultaneously filled with fluid, so as to simplify the pipeline.

In some embodiments, referring to fig. 6, a first plane is defined, the first plane is perpendicular to the arrangement direction of the first heat exchanger 10 and the second heat exchanger 20, that is, the first plane is parallel to the first plate 11 or the third plate 21, an orthographic projection of the first plane on the heat exchange channel 33 communicated with the first main channel 31 between the third port 15 and the second end 212 at least partially coincides with an orthographic projection of the second circulation channel 4 on the first plane, that is, the second heat exchanger 20 is arranged corresponding to at least a part of the heat exchange channel 33 far away from the first port 13, and exchanges heat with the object to be heated together to improve the heat exchange performance of the part, so that the heat exchange performance of the whole heat exchange device 100 is more balanced.

As shown in fig. 6 and 7, in the first direction, the second heat exchanger 20 has a fifth side 201 and a sixth side 202, the fifth side 201 is closer to the first side 103 of the first heat exchanger 10 than the sixth side 202, the first port 13 and the second port 14 are closer to the first side 103 of the first heat exchanger 10, and the fifth port 23 and the sixth port 24 are closer to the fifth side 201 of the second heat exchanger 20, so that the lengths of the first connecting pipe 5 and the second connecting pipe 6 are shortened, which not only saves materials, but also reduces the weight of the whole heat exchange device 100. Of course, the fifth port 23 and the sixth port 24 may be close to the sixth side 202 of the second heat exchanger 20, so that the general flow path of the second flow-through channel 4 in the second heat exchanger 20 along the first direction is opposite to the general flow path of the heat exchange fluid between the third port 15 and the second end 312 of the first main channel 31 along the first direction, thereby making the heat exchange of the portion of the object to be heat exchanged between the second heat exchanger 20 and the first heat exchanger 10 more uniform.

As shown in fig. 7 to 9, the second flow path 4 includes a third main path 41, a fourth main path 42, a first sub-flow path 44, and a second sub-flow path 43, one end of the first sub-flow path 44 communicates with the fifth port 23, the other end of the first sub-flow path 44 communicates with the third main path 41, and the first sub-flow path 44 is L-shaped, but the first sub-flow path 44 may also extend straight, four second sub-flow paths 43 are arranged in the second direction, one end of the bottommost second sub-flow path 43 communicates with the third main path 41, the other end of the bottommost second sub-flow path 43 communicates with the sixth port 24, one end of the other three second sub-flow paths 43 communicates with the third main path 41, and the other end communicates with the fourth main path 42.

Of course, the second flow path 4 of the second heat exchanger 20 may have other structures, and the specific shape of the second flow path 4 is not limited.

It should be noted that: the heat exchange device provided by the invention is described in detail above. The principles and embodiments of the present invention are explained herein using specific examples, which are presented only to assist in understanding the core concepts of the present invention. It should be noted that, for those skilled in the art, it is possible to make various improvements and modifications to the present invention without departing from the principle of the present invention, and those improvements and modifications also fall within the scope of the claims of the present invention.

Claims

1. A heat exchange device (100) comprising a first heat exchanger (10), the first heat exchanger (10) comprising a first plate (11) and a second plate (12), the first plate (11) and the second plate (12) having a first flow-through channel (3) therebetween, characterized in that the first flow-through channel (3) comprises a first main channel (31), a second main channel (32) and a plurality of heat exchange channels (33), a first port (3301) of the heat exchange channel (33) being in communication with the first main channel (31), a second port (3302) of the heat exchange channel (33) being in communication with the second main channel (32), the first heat exchanger (10) having a first port (13) and a second port (14), the first port (13) being an inlet, the second port (14) being an outlet, the first port (13) being in communication with the first main channel (31), the second port (14) being in communication with the second main channel (32);

the communication area between at least a part of the heat exchange channel (33) closer to the first port (13) and the first main channel (31) is smaller than the communication area between at least a part of the heat exchange channel (33) farther from the first port (13) and the first main channel (31).

2. A heat exchange device (100) according to claim 1, characterized in that a first direction is defined, in which the first heat exchanger (10) has a first side (103) and a second side (104), the first port (13) being close to the first side (103) of the first heat exchanger (10), the second port (14) being close to the first side (103) of the first heat exchanger (10).

3. The heat exchange device (100) according to claim 2, wherein the heat exchange channels (33) comprise a first set of heat exchange channels and a second set of heat exchange channels, the first set of heat exchange channels being closer to the first port (13) than the second set of heat exchange channels, the first set of heat exchange channels comprising a first heat exchange channel (331) and a second heat exchange channel (332), the first heat exchange channel (331) and the first port (3301) of the second heat exchange channel (332) being in direct communication, the second set of heat exchange channels comprising a third heat exchange channel (333) and a fourth heat exchange channel (334), the third heat exchange channel (333) and the first port (3301) of the fourth heat exchange channel (334) being in direct communication, the sum of the lengths of the first heat exchange channel (331) and the second heat exchange channel (332) being smaller than the sum of the lengths of the third heat exchange channel (333) and the fourth heat exchange channel (334).

4. The heat exchange device (100) according to claim 2, wherein the heat exchange channels (33) comprise a first set of heat exchange channels and a second set of heat exchange channels, the first set of heat exchange channels being closer to the first port (13) than the second set of heat exchange channels, the first set of heat exchange channels comprising a first heat exchange channel (331) and a second heat exchange channel (332), the first heat exchange channel (331) and the first port (3301) of the second heat exchange channel (332) being in direct communication, the first heat exchanger (10) comprising at least two first set of heat exchange channels, each of the first set of heat exchange channels being closer to the first port (13) than the second set of heat exchange channels.

5. A heat exchange device (100) according to any one of claims 2 to 4, wherein the first heat exchanger (10) has a third port (15), the third port (15) being an inlet port, the third port (15) being in communication with the first main channel (31), the first port (3301) of at least part of the heat exchange channel (33) being in communication with the first main channel (31) between the first port (13) and the third port (15).

6. A heat exchange device (100) according to claim 5, wherein in the first direction the first main channel (31) has a first end (311) and a second end (312), the first port (13) is located at the first end (311), the third port (15) is located between the first port (13) and the second end (312), and at least part of the first port (3301) of the heat exchange channel (33) communicates with the first main channel (31) located between the third port (15) and the second end (312).

7. A heat exchange device (100) according to claim 6, wherein the first heat exchanger (10) further comprises a fourth port (16), the fourth port (16) being an outlet port, the fourth port (16) communicating with the second main channel (32), in the first direction the second main channel (32) comprising a third end (322) and a fourth end (323), the second port (14) being located at the third end (322), at least part of the second port (3302) of the heat exchange channel (33) communicating with the second main channel (32) between the second port (14) and the fourth port (16), at least part of the second port (3302) of the heat exchange channel (33) communicating with the second main channel (32) between the fourth port (16) and the fourth port (323);

alternatively, the second port (14) is located at the fourth port (323), at least part of the second port (3302) of the heat exchanging channel (33) communicates with the second main channel (32) between the third port (322) and the fourth port (16), and at least part of the second port (3302) of the heat exchanging channel (33) communicates with the second main channel (32) between the fourth port (16) and the second port (14).

8. A heat exchange device (100) according to claim 3 or 4, characterised in that the heat exchange device (100) comprises a second heat exchanger (20), the second heat exchanger (20) comprising a third plate (21) and a fourth plate (22), the third plate (21) and the fourth plate (22) having a second flow-through channel (4) therebetween, defining a first face perpendicular to the direction of arrangement of the first heat exchanger (10) and the second heat exchanger (20), the orthographic projection of the second set of heat exchange channels in the first face at least partially coinciding with the orthographic projection of the second flow-through channel (4) in the first face.

9. A heat exchange device (100) according to claim 8, wherein the first heat exchanger (10) has a third port (15) and a fourth port (16), the third port (15) is an inlet, the fourth port (16) is an outlet, the third port (15) communicates with the first main channel (31), the fourth port (16) communicates with the second main channel (32), the second heat exchanger (20) has a fifth port (23) and a sixth port (24), the fifth port (23) communicates with one end of the second flow channel (4), the sixth port (24) communicates with the other end of the second flow channel (4), the heat exchange device (100) comprises a first connecting pipe (5) and a second connecting pipe (6), the first connecting pipe (5) communicates the third port (15) with the fifth port (23), and the second connecting pipe (6) communicates the fourth port (16) with the sixth port (24).

10. The heat exchange device (100) according to claim 1 or 2 or 3 or 4 or 6 or 7 or 9, wherein a first direction and a second direction are defined, the first direction is perpendicular to the second direction, the first heat exchanger (10) has a third side portion (101) and a fourth side portion (102) along the second direction, the first main channel (31) is adjacent to the third side portion (101), the second main channel (32) is adjacent to the fourth side portion (102), the heat exchange channel (33) includes a first section channel (3311, 3321, 8230; 8230, the sections 823061, a second section channel (822, 3322, 8230; the sections 8230, the sections 3362; the sections 8230; the sections N ≥ 3), the first section channel (3311, 3321; the sections 8230333061), the sections (82331, 33823031; the sections 333322; the sections of the channels) are communicated with the first main channel (823031), the second section channel (82338233823312, the sections 3330) are communicated with the sections 823311, 823062; the sections 8233823022; the sections 8233823313; the sections 823022; the sections of the channels).

11. The heat exchange device (100) according to claim 5, wherein a first direction and a second direction are defined, the first direction being perpendicular to the second direction, and the first heat exchanger (10) having a third side (101) and a fourth side (102) along the second direction, the first main channel (31) being adjacent to the third side (101), the second main channel (32) being adjacent to the fourth side (102), the heat exchange channel (33) comprising a first section channel (3311, 3321, \\ 8230 \ 8230, 3361), a second section channel (3312, 3322, \823030; 82308230308230; 3362); an N section channel, n.gtoreq.3, the first section channel (821, 3321, \\ 8230; 8230, 3361) being in communication with the first main channel (31), the second section channel (822, 3322, \\\ 823312, 333382303; the first section channel (823312; 8230331303; the second section channel (823312, 338233130), the third section channel (823312; 82303312; 82303313), the third section channel (823312; 82303312; the third section) being in communication with the second main channel, the third section channel).

12. The heat exchange device (100) according to claim 8, characterized in that a first direction and a second direction are defined, the first direction being perpendicular to the second direction, along which the first heat exchanger (10) has a third side (101) and a fourth side (102), the first main channel (31) being adjacent to the third side (101), the second main channel (32) being adjacent to the fourth side (102), the heat exchange channel (33) comprising a first section channel (3311, 3321, \8230 \, 3361), a second section channel (3312, 3322, \8230;,8230), 3362) \8230- \\ 8230: [ N ] a nth section of channel, wherein N is more than or equal to 3, the first section of channel (3311, 3321, \8230; [ 8230 ]; [ 3361 ] is communicated with the first main channel (31), the second section of channel (3312, 3322, [ 8230 ]; [ 823030 ]; [ 8230 ]; [ 3323 ]; [ 823030 ]; [ 82303030 ]; [ 3363 ] is communicated with the first section of channel (3311, 3321 ], the first section of channel (8230); [ 8230 ]; [ 823312 ], 3322 ], the second section of channel (82303030303030); [ 8233130 ]; [ 8230 ]; [ 822 ]; [ 8233130 ]; [ 30 ]; [ 8230 ]; [ N ] is arranged along the first direction).