Intermediate heat exchanger, heat management system and vehicle

Abstract

The utility model discloses an intermediate heat exchanger, a heat management system and a vehicle, the intermediate heat exchanger comprises: a heat exchanger body, which is provided with a plurality of flow channels arranged along a first direction, a cold side medium inlet and a cold side medium outlet arranged along a second direction, and a hot side medium inlet and a hot side medium outlet arranged along a third direction, the multiple flow channels comprise the cold side flow channel and the hot side flow channel, the cold side medium inlet and the cold side medium outlet are both communicated with the cold side flow channel, the hot side medium inlet and the hot side medium outlet are both communicated with the hot side flow channel, and the second direction and the third direction intersect and are perpendicular to the first direction; the first heat exchange fins are arranged on the cold side flow channel and divide the cold side flow channel into a plurality of first heat exchange channels, the adjacent first heat exchange channels communicate through second heat exchange channels, the included angle between the arrangement direction of the two ends of each first heat exchange channel and the second direction is alpha, and alpha is smaller than or equal to 15 degrees. According to the intermediate heat exchanger provided by the embodiment of the utility model, the requirements on heat exchange amount, flow resistance and space compactness of the intermediate heat exchanger can be met.

Description

Technical Field

[0001] The utility model relates to the technical field of heat exchangers, and more specifically, to an intermediate heat exchanger, a thermal management system and a vehicle. Background Art

[0002] In the related art, the intermediate heat exchanger has high efficiency in heat exchange capacity, but it is difficult to simultaneously meet the requirements of heat exchange capacity, flow resistance and space compactness required by the vehicle thermal management system. Utility Model Content

[0003] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, one purpose of the utility model is to provide an intermediate heat exchanger, which can control the heat exchange amount within a reasonable range, reduce the flow resistance, and occupy a small space, which is conducive to meeting the space compactness requirement.

[0004] Another object of the present invention is to provide a thermal management system having the above intermediate heat exchanger.

[0005] Another object of the present invention is to provide a vehicle with the above thermal management system.

[0006] According to an embodiment of the utility model, the intermediate heat exchanger includes: a heat exchanger body, the heat exchanger body has a plurality of flow channels arranged along a first direction, a cold side medium inlet and a cold side medium outlet arranged along a second direction, and a hot side medium inlet and a hot side medium outlet arranged along a third direction, the plurality of flow channels include a cold side flow channel and a hot side flow channel, the cold side medium inlet and the cold side medium outlet are both connected to the cold side flow channel and used for circulating the cold side medium, the hot side medium inlet and the hot side medium outlet are both connected to the hot side flow channel and used for circulating the hot side medium, the second direction intersects with the third direction and the second direction and the third direction are respectively perpendicular to the first direction; a first heat exchange fin, the first heat exchange fin is arranged on the cold side flow channel and divides the cold side flow channel into a plurality of first heat exchange channels, adjacent first heat exchange channels are connected through a second heat exchange channel, and the angle between the arrangement direction of the two ends of the first heat exchange channel and the second direction is α, α≤15°.

[0007] According to the intermediate heat exchanger of the embodiment of the utility model, the flow path of the hot side medium and the flow path of the cold side medium are spatially intersected, so that the size of the intermediate heat exchanger can be reduced while controlling the heat exchange rate within a reasonable range, and the angle α between the arrangement direction of the two ends of the first heat exchange channel and the second direction satisfies α≤15°, which is beneficial to reducing the flow resistance of the intermediate heat exchanger, taking into account the heat exchange rate, flow resistance and space compactness requirements of the intermediate heat exchanger, and is beneficial to improving the system capacity.

[0008] In addition, the intermediate heat exchanger according to the above embodiment of the utility model may also have the following additional technical features:

[0009] According to some embodiments of the present invention, the first heat exchange channel extends parallel to the second direction, and a plurality of the first heat exchange channels are arranged at intervals along the third direction.

[0010] According to some embodiments of the present invention, the second heat exchange channel extends along the third direction.

[0011] According to some embodiments of the utility model, the first heat exchange fins include a plurality of first fin groups arranged along the third direction, the first fin group includes a plurality of first fins arranged at intervals along the second direction, the first fins extend perpendicular to the first direction, and the first fins are connected to second fins extending parallel to the first direction, wherein the first heat exchange channel is defined between two adjacent first fin groups, and / or, one side wall of the cold side flow channel along the first direction abuts against the first fin group and the other side wall defines the first heat exchange channel with the first fin group; the second heat exchange channel is defined between two adjacent second fins.

[0012] According to some embodiments of the present utility model, the heat exchanger body has four corners, and the cold side medium inlet, the cold side medium outlet, the hot side medium inlet and the hot side medium outlet are respectively arranged at the four corners.

[0013] According to some embodiments of the present utility model, the heat exchanger body includes a mounting plate, a bottom plate and a plurality of heat exchange plates arranged between the mounting plate and the bottom plate, the mounting plate has the four corners and is provided with the cold side medium inlet, the cold side medium outlet, the hot side medium inlet and the hot side medium outlet, and the plurality of heat exchange plates divide the space between the mounting plate and the bottom plate into a plurality of flow channels.

[0014] According to some embodiments of the present invention, the heat exchanger body has two side edges opposite to each other along a fourth direction and two side edges opposite to each other along a fifth direction, the fourth direction, the fifth direction and the first direction are perpendicular to each other, the spacing between the two side edges opposite to each other along the fourth direction is L1, the spacing between the two side edges opposite to each other along the fifth direction is L2, and L1 / L2 is greater than or equal to 1 and less than or equal to 1.5.

[0015] According to some embodiments of the utility model, in the fourth direction, the arrangement direction of the cold side medium inlet and the cold side medium outlet is opposite to the arrangement direction of the hot side medium inlet and the hot side medium outlet; in the fifth direction, the arrangement direction of the cold side medium inlet and the cold side medium outlet is the same as the arrangement direction of the hot side medium inlet and the hot side medium outlet.

[0016] According to some embodiments of the present invention, the number of the cold side flow channels is greater than the number of the hot side flow channels, and the cold side flow channels include a first cold side flow channel and a second cold side flow channel, the first cold side flow channel is adjacent to the hot side flow channel, and the second cold side flow channel is separated from the hot side flow channel.

[0017] According to some embodiments of the present invention, the second cold-side flow channel is located on a side of the first cold-side flow channel facing away from the hot-side flow channel so as to be spaced apart from the hot-side flow channel.

[0018] According to some embodiments of the present invention, there are one or more first cold side flow channels, and multiple first cold side flow channels are arranged alternately with the hot side flow channels along the first direction, wherein the second cold side flow channel is located on the side of the first cold side flow channel at the outermost end in the first direction, away from the hot side flow channel; and / or, the second cold side flow channel is one or multiple ones arranged continuously along the first direction.

[0019] According to some embodiments of the present invention, a second heat exchange fin is provided in the hot side flow channel, and the density of the second heat exchange fin is greater than the density of the first heat exchange fin.

[0020] The thermal management system according to the embodiment of the present utility model includes the intermediate heat exchanger according to the embodiment of the present utility model.

[0021] A vehicle according to an embodiment of the present invention includes a thermal management system according to an embodiment of the present invention.

[0022] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0024] Figure 1 is a schematic structural diagram of an intermediate heat exchanger according to an embodiment of the utility model;

[0025] Figure 2 yes Figure 1 A cross-sectional view of

[0026] Figure 3 is a structural schematic diagram of a first heat exchange fin according to an embodiment of the utility model;

[0027] Figure 4 yes Figure 3 A partial enlarged view of

[0028] Figure 5 is a partial structural schematic diagram of a thermal management system according to an embodiment of the utility model;

[0029] Figure 6 is a schematic diagram of a thermal management system according to an embodiment of the utility model;

[0030] Figure 7 is a schematic diagram of a vehicle according to an embodiment of the utility model.

[0031] Reference numerals:

[0032] Vehicle 1000; thermal management system 200; collector plate 210; external heat exchanger 220; cabin evaporator 230; cabin condenser 240; compressor 250; first throttle valve 261; second throttle valve 262; first on-off valve 271; second on-off valve 272; third on-off valve 273; fourth on-off valve 274; fifth on-off valve 275; sixth on-off valve 276; liquid storage tank 280;

[0033] Intermediate heat exchanger 100;

[0034] Heat exchanger body 10; mounting plate 11; cold side medium inlet 111; cold side medium outlet 112; hot side medium inlet 113; hot side medium outlet 114; corner 115; bottom plate 12; heat exchange plate 13;

[0035] First heat exchange fin 20; first fin group 21; first fin 211; first heat exchange channel 212; second fin 22; second heat exchange channel 221; second heat exchange fin 30; through hole 35;

[0036] Flow channel 40; cold side flow channel 41; first cold side flow channel 411; second cold side flow channel 412; hot side flow channel 42;

[0037] First direction F1; second direction F2; third direction F3; fourth direction F4; fifth direction F5. DETAILED DESCRIPTION

[0038] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0039] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0040] In the description of the present invention, "first feature" and "second feature" may include one or more such features, "plurality" means two or more, the first feature "above" or "below" the second feature may include the first and second features being in direct contact, or may include the first and second features not being in direct contact but being in contact through another feature between them, the first feature "above", "above" and "above" the second feature may include the first feature being directly above and diagonally above the second feature, or may simply mean that the first feature is at a higher level than the second feature.

[0041] With the rapid update and iteration of new energy vehicle technology, the thermal management system, as a key system that affects vehicle endurance and passenger experience, has become the focus of technological innovation. Compactness is the core competitiveness of electric vehicle thermal management integrated modules. The selection of compact, efficient heat exchange, and low flow resistance heat exchange structures is a difficult problem that needs to be overcome urgently.

[0042] In some related technologies, high-pressure and low-pressure fluid channels are set in the refrigerant flow plate, and heat exchange is carried out through the partition. In other related technologies, the plate heat exchanger is used as a heat exchange element, also known as an intermediate heat exchanger, which is independent of the refrigerant flow plate, adopts an inserted structure, and is fixed to the refrigerant flow plate by bolts. The intermediate heat exchanger is used to guide the refrigerant liquid condensed by the condenser and the refrigerant vapor after absorbing heat and vaporizing in the evaporator to exchange heat, thereby increasing the supercooling before the expansion valve, thereby reducing throttling losses and improving refrigeration efficiency. Compared with the heat exchange structure inside the refrigerant flow plate, the intermediate heat exchanger has a more efficient heat exchange capacity, which can greatly reduce the plate size of the refrigerant flow plate and achieve compactness.

[0043] Harmful overheating will lead to low system capacity, so the compressor suction temperature cannot be too high, and the heat exchange capacity of the intermediate heat exchanger cannot be too large. It must be within the range specified by the system to play a beneficial role. At the same time, the lower the flow resistance, the better, especially the refrigerant flow resistance on the low-pressure side. Too much flow resistance will also lead to low system capacity. However, the intermediate heat exchanger in the related technology usually pursues the higher the heat exchange capacity, the better, increasing the heat exchange area or fin density of the intermediate heat exchanger to increase the heat exchange capacity, but it is easy to cause the intermediate heat exchanger to occupy a large space and have high flow resistance, which makes it difficult to simultaneously meet the requirements of the heat exchange range, low flow resistance and space compactness required by the automotive thermal management system.

[0044] Based on this, the present application proposes an intermediate heat exchanger 100 and a thermal management system 200 having the intermediate heat exchanger 100. The intermediate heat exchanger 100 occupies a small space, has good space compactness, and can control the heat exchange amount within a reasonable range and reduce flow resistance.

[0045] The intermediate heat exchanger 100 according to an embodiment of the present invention will be described below with reference to the accompanying drawings.

[0046] Reference Figure 1-Figure 4 As shown, the intermediate heat exchanger 100 according to the embodiment of the present invention may include a heat exchanger body 10 and first heat exchange fins 20 .

[0047] Specifically, the heat exchanger body 10 has a first direction F1 (eg Figure 1-Figure 2 The plurality of flow channels 40 are arranged in the upper and lower directions (as shown in the figure), the cold side medium inlet 111 and the cold side medium outlet 112 are arranged along the second direction F2, and the hot side medium inlet 113 and the hot side medium outlet 114 are arranged along the third direction F3. The plurality of flow channels 40 include a cold side flow channel 41 and a hot side flow channel 42. The cold side medium inlet 111 and the cold side medium outlet 112 are both connected to the cold side flow channel 41 and are used for circulating the cold side medium. The hot side medium inlet 113 and the hot side medium outlet 114 are both connected to the hot side flow channel 42 and are used for circulating the hot side medium. The second direction F2 intersects with the third direction F3, and the second direction F2 and the third direction F3 are respectively perpendicular to the first direction F1.

[0048] The first heat exchange fins 20 are arranged on the cold side flow channel 41 and divide the cold side flow channel 41 into multiple first heat exchange channels 212. Adjacent first heat exchange channels 212 are connected through the second heat exchange channels 221. The arrangement direction of the two ends of the first heat exchange channels 212 forms an angle α with the second direction F2, α≤15°.

[0049] The flow channel 40 can provide flow space for the heat exchange medium on the cold side and the hot side. For example, the cold side flow channel 41 can provide flow space for the cold side medium with a lower temperature, and the hot side flow channel 42 can provide flow space for the hot side medium with a higher temperature. When the cold side flow channel 41 and the hot side flow channel 42 are adjacent and there is a temperature difference, heat exchange can be achieved by transferring heat. The arrangement and number of the multiple flow channels 40 are not limited. For example, the multiple flow channels 40 can be as follows. Figure 1-Figure 2 As shown, they are stacked along the first direction F1 to make the structure compact and facilitate heat exchange.

[0050] In the intermediate heat exchanger 100, the cold side medium and the hot side medium are refrigerants at different positions in the same refrigerant circulation loop, specifically, the refrigerants at the compressor suction port side and the throttle valve upstream side.

[0051] The cold side medium can enter the cold side flow channel 41 through the cold side medium inlet 111 and flow out of the cold side flow channel 41 through the cold side medium outlet 112 ; the hot side medium can enter the hot side flow channel 42 through the hot side medium inlet 113 and flow out of the hot side flow channel 42 through the hot side medium outlet 114 .

[0052] The first heat exchange fin 20 is provided in the cold side flow channel 41. The first heat exchange fin 20 can increase the heat exchange area between the first heat exchange fin 20 and the heat exchange medium, and improve the heat exchange efficiency. The cold side medium in the cold side flow channel 41 can flow along the first heat exchange channel 212 and the second heat exchange channel 221 through the first heat exchange fin 20. The flow direction of the cold side medium in the first heat exchange channel 212 can be as follows: Figure 3 As shown by the solid arrow in the middle, the flow direction of the cold side medium in the second heat exchange channel 221 can be as follows: Figure 3 Indicated by hollow arrows.

[0053] Most of the cold-side medium flowing into the cold-side flow channel 41 through the cold-side medium inlet 111 flows to the cold-side medium outlet 112 through the area close to the cold-side medium inlet 111, forming a main flow area; a small part flows to the cold-side medium outlet 112 through the area far from the cold-side medium inlet 111. For example, most of the cold-side medium flowing into the cold-side flow channel 41 through the cold-side medium inlet 111 flows from the first heat exchange channel 212 close to the cold-side medium inlet 111 to the cold-side medium outlet 112, and a small part flows to the first heat exchange channel 212 far from the cold-side medium inlet 111 and then flows to the cold-side medium outlet 112 through the first heat exchange channel 212 and the second heat exchange channel 221 in a zigzag manner, so that the cold-side medium in the cold-side flow channel 41 is more distributed in the area where the first heat exchange channel 212 close to the cold-side medium inlet 111 is located. Similarly, most of the hot side medium flowing into the hot side flow channel 42 through the hot side medium inlet flows to the hot side medium outlet 114 through the area close to the hot side medium inlet 113 to form a main flow area, and a small part flows to the hot side medium outlet 114 through the area far from the hot side medium inlet 113.

[0054] The cold side medium inlet 111 and the cold side medium outlet 112 are arranged along the second direction F2, the hot side medium inlet 113 and the hot side medium outlet 114 are arranged along the third direction F3, and the second direction F2 intersects with the third direction F3, so that the cold side medium generally flows along the second direction F2 from the cold side medium inlet 111 toward the cold side medium outlet 112, and the main flow area of ​​the cold side medium in the cold side flow channel 41 is located in the area near the line connecting the cold side medium inlet 111 and the cold side medium outlet 112, and the hot side medium in the hot side flow channel 42 generally flows along the third direction F3 from the hot side medium inlet 113 toward the hot side medium outlet 114, and the main flow area of ​​the hot side medium in the hot side flow channel 42 is located in the area near the line connecting the hot side medium inlet 113 and the hot side medium outlet 114.

[0055] The second direction F2 intersects with the third direction F3, so that the main flow area of ​​the cold side flow channel 41 intersects with the projection of the main flow area of ​​the hot side flow channel 42 along the first direction F1, and the cold side medium in the main flow area of ​​the cold side flow channel 41 exchanges heat with the hot side medium in the main flow area of ​​the hot side flow channel 42, which can increase the heat exchange capacity of the intermediate heat exchanger 100 when the size of the intermediate heat exchanger 100 is constant, and achieve efficient heat exchange. It can be understood that the intermediate heat exchanger 100 in the present application has lower requirements on the size of the intermediate heat exchanger 100 under the same heat exchange demand, so that the size of the intermediate heat exchanger 100 can be reduced while controlling the heat exchange capacity to meet the demand and be within a reasonable range, which can greatly reduce the occupied space of the intermediate heat exchanger 100, such as reducing the installation space required for the intermediate heat exchanger 100 on the collector 210, which is conducive to improving the spatial compactness of the intermediate heat exchanger 100.

[0056] In some specific embodiments, Figure 1-Figure 2 As shown, the line connecting the center of the cold side medium inlet 111 and the center of the cold side medium outlet 112 is T1, the line connecting the center of the hot side medium inlet 113 and the center of the hot side medium outlet 114 is T2, and the projections of T1 and T2 along the first direction F1 intersect. Here, the center may refer to a geometric center, for example, if the cold side medium inlet 111 is configured in a circle, the center of the cold side medium inlet 111 refers to the center of the circle of the cold side medium inlet 111, which is beneficial to increase the heat exchange area between the cold side medium and the hot side medium to a certain extent.

[0057] It should be noted that the cold side medium inlet 111, the cold side medium outlet 112, the hot side medium inlet 113 and the hot side medium outlet 114 are not limited to the arrangement positions in the first direction F1. For example, the four openings (i.e., the cold side medium inlet 111, the cold side medium outlet 112, the hot side medium inlet 113 and the hot side medium outlet 114) can be as follows: Figure 1-Figure 2As shown, they are arranged on the same side in the first direction F1, so as to facilitate the connection between the intermediate heat exchanger 100 and the collecting plate 210 and other structures. The four openings may also be arranged partly on one side in the first direction F1 and partly on the other side in the first direction F1, which is also within the protection scope of the present application.

[0058] The angle α between the arrangement direction of the two ends of the first heat exchange channel 212 and the second direction F2 is less than or equal to 15°, and the cold side medium inlet 111 and the cold side medium outlet 112 are arranged along the second direction F2. The larger the angle α, the greater the difference between the flow path of the cold side medium in the first heat exchange channel 212 and the second direction F2, making it difficult for the cold side medium to flow directly from the cold side medium inlet 111 to the cold side medium outlet 112 through the first heat exchange channel 212, which is easy to increase the flow resistance of the cold side medium in the cold side flow channel 41, and has a greater adverse effect on the flow resistance. Making the angle α within the above angle range is conducive to meeting the low flow resistance requirements of the intermediate heat exchanger 100, thereby helping to improve the system capacity. For example, α is 0°, 10°, 15°, etc.

[0059] It is worth noting that when α is not equal to 0°, the inlet end of the first heat exchange channel 212 can be located on one side of the cold side medium inlet 111 in the third direction F3, and the outlet end of the first heat exchange channel 212 can be located on the other side of the cold side medium outlet 112 in the third direction F3; or, the inlet end of the first heat exchange channel 212 can be located on the other side of the cold side medium inlet 111 in the third direction F3, and the outlet end of the first heat exchange channel 212 can be located on one side of the cold side medium outlet 112 in the third direction F3.

[0060] There is more heat exchange medium in the main flow area of ​​the cold side flow channel 41 and the hot side flow channel 42, and the flow rate is large, which easily causes the problem of increased flow resistance. By limiting the angle α between the arrangement direction of the two ends of the first heat exchange channel 212 and the second direction F2, it is possible to reduce the obstruction to the flow of the heat exchange medium in the main flow area, reduce the flow resistance in the main flow area, and make the heat exchange medium flow in the main flow area smoother, which is beneficial to increase the heat exchange amount in the main flow area to a certain extent, reduce the size requirement of the intermediate heat exchanger 100 under the same heat exchange demand, and take into account the heat exchange range, low flow resistance and space compactness requirements of the intermediate heat exchanger 100.

[0061] According to the intermediate heat exchanger 100 of the embodiment of the utility model, the flow path of the hot side medium and the flow path of the cold side medium are spatially intersected, so that the size of the intermediate heat exchanger 100 can be reduced while controlling the heat exchange amount within a reasonable range, and the angle α between the arrangement direction of the two ends of the first heat exchange channel 212 and the second direction F2 satisfies α≤15°, which is beneficial to reducing the flow resistance of the intermediate heat exchanger 100, taking into account the heat exchange amount, flow resistance and space compactness requirements of the intermediate heat exchanger 100, and is beneficial to improving the system capacity.

[0062] In some embodiments, a second heat exchange fin 30 is provided in the hot side flow channel 42, and the second heat exchange fin 30 divides the hot side flow channel 42 into a plurality of third heat exchange channels, and adjacent third heat exchange channels are connected through a fourth heat exchange channel, and the angle between the arrangement direction of the two ends of the third heat exchange channel and the third direction is β, 0°≤β≤15°. Similarly, the hot side medium in the hot side flow channel 42 can flow more to the main flow area through the third heat exchange channel and the fourth heat exchange channel, which is conducive to increasing the flow channel in the main flow area of ​​the hot side flow channel 42, so that more hot side medium in the main flow area of ​​the hot side flow channel 42 can exchange heat with a large amount of cold side medium in the main flow area of ​​the cold side flow channel 41, further improving the heat exchange capacity of the intermediate heat exchanger 100, so as to further reduce the size of the intermediate heat exchanger 100 under the condition of the same heat exchange demand, and the space compactness is better.

[0063] The first heat exchange channel 212 can extend along a straight line, a curve, an irregular shape, etc., so that the angle α between the arrangement direction of the two ends of the first heat exchange channel 212 and the second direction F2 satisfies the above angle range. Figure 3-Figure 4 As shown, the first heat exchange channel 212 extends parallel to the second direction F2, that is, α is equal to 0°, and multiple first heat exchange channels 212 are arranged at intervals along the third direction F3, so that the arrangement direction of the cold side medium inlet 111 and the cold side medium outlet 112 is slightly different from the flow path of the cold side medium in the first heat exchange channel 212, and the cold side medium entering the cold side flow channel 41 through the cold side medium inlet 111 can flow in the first heat exchange channel 212 along the second direction F2 toward the cold side medium outlet 112, that is, the cold side medium in the cold side flow channel 41 can flow along the arrangement direction of the cold side medium inlet 111 and the cold side medium outlet 112, which is beneficial to reducing the flow resistance of the first heat exchange channel 212 and meeting the low flow resistance requirement of the intermediate heat exchanger 100.

[0064] In some embodiments, Figure 3-Figure 4 As shown, the second heat exchange channel 221 extends along the third direction F3, so that the arrangement direction of the hot side medium inlet 113 and the hot side medium outlet 114 is slightly different from the flow path of the cold side medium in the second heat exchange channel 221, which is beneficial to increase the heat exchange area between the cold side medium flowing along the second heat exchange channel 221 in the cold side channel 41 and the hot side medium in the adjacent hot side channel 42, while reducing the flow resistance of the first heat exchange channel 212 and further improving the heat exchange efficiency, so that the size of the intermediate heat exchanger 100 can be smaller, the space compactness is improved, and the heat exchange amount is controlled within a reasonable range.

[0065] In some embodiments of the present invention, Figure 2-Figure 4As shown, the first heat exchange fin 20 includes a plurality of first fin groups 21 arranged along the third direction F3, the first fin group 21 includes a plurality of first fins 211 arranged at intervals along the second direction F2, the first fins 211 extend perpendicularly to the first direction F1, and the first fins 211 are connected to second fins 22 extending parallel to the first direction F1. A first heat exchange channel 212 is defined between two adjacent first fin groups 21, and a second heat exchange channel 221 is defined between two adjacent second fins 22.

[0066] By connecting the first fin 211 and the second fin 22, the relative positions of the plurality of first fin groups 21 in the third direction F3 are stabilized, and the relative positions of the plurality of first fins 211 of the same first fin group 21 in the second direction F2 are stabilized, thereby the channel structure of the first heat exchange channel 212 and the second heat exchange channel 221 is stable, which is conducive to improving the stability of the heat exchange amount and flow resistance; and the structural stability of the fins can be improved, and the fins are not easily deformed, which is conducive to improving the service life. In some specific embodiments, such as Figure 2-Figure 4 As shown, in the first direction F1 , the first fin 211 is connected to the upper end of the second fin 22 .

[0067] A first heat exchange channel 212 is defined between two adjacent first fin groups 21 , and the plurality of first fins 211 of the first fin group 21 are arranged along the second direction F2 , so that the first heat exchange channel 212 is substantially formed into a linear channel, thereby greatly reducing the flow resistance.

[0068] The second fin 22 can block the heat exchange medium flowing through the opposite second heat exchange channel 221 to reduce the flow rate and flow of the heat exchange medium and change the flow direction of the heat exchange medium, which can increase the flow resistance of the second heat exchange channel 221, so that the flow resistance of the first heat exchange channel 212 is smaller than the flow resistance of the second heat exchange channel 221, so as to control the flow of the heat exchange medium flowing along the second direction F2. The heat exchange fin has a simple structure and a good effect of controlling the heat exchange amount and flow resistance.

[0069] In some embodiments, Figure 2-Figure 4 As shown, one side wall of the cold side flow channel 41 along the first direction F1 abuts against the first fin group 21 and a first heat exchange channel 212 is defined between the other side wall and the first fin group 21, so that a plurality of first fins 211 of the same first fin group 21 define the first heat exchange channel 212, and the plurality of first fins 211 of the first fin group 21 are arranged along the second direction F2, so that the first heat exchange channel 212 is generally formed as a straight channel extending along the second direction F2, thereby greatly reducing the flow resistance.

[0070] In some embodiments of the present invention, Figure 1-Figure 2As shown, the heat exchanger body 10 has four corners 115, and the cold side medium inlet 111, the cold side medium outlet 112, the hot side medium inlet 113 and the hot side medium outlet 114 are respectively arranged at the four corners 115. The heat exchange medium mainly flows in the middle area of ​​the heat exchanger body 10 defined by the four corners 115, and the heat exchange medium is not easy to flow to the edge of the heat exchanger body 10 and then flow to the middle area, which is conducive to reducing the flow resistance of the heat exchange medium and improving the heat exchange efficiency. And the four openings are respectively located at the four corners 115 of the heat exchanger body 10, which can make the path between the cold side medium inlet 111 and the cold side medium outlet 112 longer, and the path between the hot side medium inlet 113 and the hot side medium outlet 114 longer, so as to extend the flow path of the heat exchange medium and thus increase the heat exchange area of ​​the heat exchange medium, so that the heat exchange amount is not too low, which is conducive to controlling the heat exchange amount within a reasonable range.

[0071] In some embodiments, the horizontal plane of the heat exchanger body 10 is configured as a square, and the four corners 115 of the square refer to the two ends of each of the two diagonals of the square, so that the angle between T1 and T2 is a right angle, and T1 and T2 are both the longest straight line segments in the plane, which is conducive to maximizing the size of the heat exchanger body 10, controlling the heat exchange amount within a reasonable range while reducing the size of the intermediate heat exchanger 100. In some embodiments, the horizontal plane of the heat exchanger body 10 is configured as a rectangle, and the four corners 115 of the rectangle refer to the two ends of each of the two diagonals of the rectangle. Of course, in some embodiments, the horizontal plane of the heat exchanger body 10 can also be configured in other shapes such as a square with rounded corners 115, a square with a mounting portion extending from the corner 115, etc.

[0072] In some embodiments, Figure 1-Figure 2 As shown, the heat exchanger body 10 includes a mounting plate 11, a bottom plate 12, and a plurality of heat exchange plates 13 disposed between the mounting plate 11 and the bottom plate 12. The mounting plate 11 has four corners 115 and is provided with a cold side medium inlet 111, a cold side medium outlet 112, a hot side medium inlet 113, and a hot side medium outlet 114. The plurality of heat exchange plates 13 divide the space between the mounting plate 11 and the bottom plate 12 into a plurality of flow channels 40. The flow channels 40 of the heat exchanger body 10 are formed into heat exchange layers, the heat exchange area of ​​adjacent heat exchange layers is large, the heat exchange efficiency is higher, and the structure is more compact.

[0073] In some embodiments, Figure 2-Figure 4As shown, the lower end of the first fin 211 is connected to the second fin 22, the upper end of the first fin 211 abuts against the heat exchange plate 13 and the lower end of the second fin 22 abuts against the adjacent heat exchange plate 13, so as to support and limit the two heat exchange plates 13, so that the two heat exchange plates 13 are not easily deformed and collapsed, which is beneficial to improving the spatial stability of the heat exchange layer, and the heat exchange medium can exchange heat with the wall of the heat exchange layer through the fin after heat exchange with the fin, thereby realizing heat exchange with the heat exchange medium in the adjacent heat exchange layer, and the first fin 211 and the second fin 22 increase the heat transfer area and improve the heat exchange efficiency.

[0074] In some embodiments of the present invention, Figure 1-Figure 2 As shown, the heat exchanger body 10 has a fourth direction F4 (eg Figure 1 The left and right directions shown in FIG. 1 and the left and right directions shown in FIG. 1 and the right and left directions shown in FIG. 1 and 1 Figure 1 The fourth direction F4, the fifth direction F5 and the first direction F1 are perpendicular to each other, the spacing between the two side edges opposite to each other along the fourth direction F4 is L1, the spacing between the two side edges opposite to each other along the fifth direction F5 is L2, and L1 / L2 is greater than or equal to 1 and less than or equal to 1.5.

[0075] If the ratio of L1 / L2 is too large, it is easy to cause the relative dimensions of the two sides of the heat exchanger body 10 along the fifth direction F5 to be too large compared to the other two sides. Under the condition of the same heat exchange demand, the requirement for L1 is higher, the heat exchange is difficult to control, and it is easy to cause size waste; if the ratio of L1 / L2 is too small, it is easy to cause the relative dimensions of the two sides of the heat exchanger body 10 along the fourth direction F4 to be too large compared to the other two sides. Under the condition of the same heat exchange demand, the requirement for L2 is higher, the heat exchange is difficult to control, and it is easy to cause size waste. Controlling the ratio of L1 / L2 within the above range is conducive to controlling the heat exchange within a reasonable range, and reducing the requirements for L1 and L2 at the same time under the condition of the same heat exchange demand, which is conducive to improving the utilization rate of the size of the heat exchanger body 10 and reducing the size of the intermediate heat exchanger 100. For example, L1 / L2 is equal to 1, 1.2, 1.5, etc.

[0076] For example, in some specific embodiments, Figure 1-Figure 2 As shown, the fourth direction F4 is the left-right direction, the fifth direction F5 is the front-back direction, the two opposite sides of the heat exchanger body 10 along the fourth direction F4 are the left side and the right side, the two opposite sides of the heat exchanger body along the fifth direction F5 are the front side and the rear side, and the connection between the front side and the left side, the connection between the front side and the right side, the connection between the rear side and the left side, and the connection between the rear side and the right side respectively form corners 115.

[0077] In some embodiments, Figure 1-Figure 4As shown, in the fourth direction F4, the arrangement direction of the cold side medium inlet 111 and the cold side medium outlet 112 is opposite to the arrangement direction of the hot side medium inlet 113 and the hot side medium outlet 114; in the fifth direction F5, the arrangement direction of the cold side medium inlet 111 and the cold side medium outlet 112 is the same as the arrangement direction of the hot side medium inlet 113 and the hot side medium outlet 114. The cold side medium and the hot side medium flow in opposite directions in the fourth direction F4, which is conducive to increasing the heat exchange between the cold side medium and the hot side medium along the fourth direction F4, and L1 / L2 is greater than or equal to 1 and less than or equal to 1.5, so that the length of the heat exchanger body 10 along the fourth direction F4 is equal to or longer than the length along the fifth direction F5, which is conducive to increasing the heat exchange area between the cold side medium and the hot side medium at the corresponding position along the fourth direction F4, thereby facilitating the control of the heat exchange within a reasonable range.

[0078] For example, in some specific embodiments, Figure 1 As shown, in the left-right direction, the cold side medium inlet 111 is located on the right side of the cold side medium outlet 112, and the hot side medium inlet 113 is located on the left side of the hot side medium outlet 114; in the front-to-back direction, the cold side medium inlet 111 is located in front of the cold side medium outlet 112, and the hot side medium inlet 113 is located in front of the hot side medium outlet 114.

[0079] In some embodiments of the present invention, Figure 2 As shown, the number of cold side channels 41 is greater than the number of hot side channels 42 , and the cold side channels 41 include a first cold side channel 411 and a second cold side channel 412 . The first cold side channel 411 is adjacent to the hot side channel 42 , and the second cold side channel 412 is spaced apart from the hot side channel 42 .

[0080] Among them, the hot side flow channel 42 can be one or more, and the cold side flow channel 41 can be multiple and the number is greater than the hot side flow channel 42, that is, the number of cold side flow channels 41 is increased, thereby providing more circulation space for the cold side medium, reducing the resistance to the flow of the cold side medium, and is beneficial to improving the temperature control ability of the thermal management system 200.

[0081] The first cold side flow channel 411 is adjacent to the hot side flow channel 42, which means that the first cold side flow channel 411 and the hot side flow channel 42 are separated only by a wall surface without other air layers, heat insulation materials, etc. For example, the first cold side flow channel 411 and the hot side flow channel 42 are separated by a heat exchange plate 13, so that the cold side medium in the first cold side flow channel 411 and the hot side medium in the hot side flow channel 42 can directly exchange heat through the heat exchange plate 13.

[0082] The second cold side flow channel 412 is separated from the hot side flow channel 42, that is, the second cold side flow channel 412 and the hot side flow channel 42 may not only be provided with a wall surface for separation, but also be provided with at least one of the structures such as the first cold side flow channel 411, an air layer, and a heat insulating material. For example, the second cold side flow channel 412 and the hot side flow channel 42 are separated by a plurality of heat exchange plates 13 and the first cold side flow channel 411, so that the cold side medium in the second cold side flow channel 412 and the hot side medium in the hot side flow channel 42 cannot directly exchange heat through the heat exchange plates 13.

[0083] Among them, the heat exchange amount of the cold side medium in the second cold side flow channel 412 can be different according to the setting position of the second cold side flow channel 412. For example, a first cold side flow channel 411 is provided between the second cold side flow channel 412 and the hot side flow channel 42, so that when the temperature of the cold side medium in the first cold side flow channel 411 increases, heat exchange can occur with the cold side medium in the second cold side flow channel 412 to a certain extent, but the heat exchange amount of the cold side medium in the second cold side flow channel 412 is relatively low. For another example, in an embodiment where the second cold side flow channel 412 is separated from the hot side flow channel 42 by an air layer, a heat insulating material or other structure, the cold side medium in the second cold side flow channel 412 basically does not exchange heat. Therefore, compared with the cold side medium in the first cold side flow channel 411, the thermal resistance of the cold side medium in the second cold side flow channel 412 is increased, so that the overall heat exchange of the intermediate heat exchanger 100 is controlled within a reasonable range, and the heat exchange required by the thermal management system 200 is ensured through the heat exchange of the cold side medium in the first cold side flow channel 411, thereby controlling the overall heat exchange within an appropriate range, which is beneficial to improving the temperature regulation capability of the thermal management system 200.

[0084] By making the number of cold-side flow channels 41 greater than the number of hot-side flow channels 42, the flow resistance is reduced, and the second cold-side flow channel 412 is separated from the hot-side flow channel 42, which can increase the thermal resistance to a certain extent. While reducing the flow resistance, the heat exchange amount is controlled within a reasonable range, which is beneficial to improving the temperature control capability of the thermal management system 200.

[0085] There are many specific forms in which the second cold side flow channel 412 is spaced apart from the hot side flow channel 42. For example, in some embodiments, Figure 2 As shown, the second cold side flow channel 412 is located on the side of the first cold side flow channel 411 facing away from the hot side flow channel 42 so as to be separated from the hot side flow channel 42. In other words, the second cold side flow channel 412 and the hot side flow channel 42 are separated by the first cold side flow channel 411, and no other spacing structure is required, which is conducive to improving the compactness of the structure and simplifying the structure.

[0086] In some embodiments, the first cold side flow channel 411 may be one or more. For example, in an embodiment where the first cold side flow channel 411 is one, Figure 2As shown, all hot-side flow channels 42 are located on one side of the first cold-side flow channel 411 , and all second cold-side flow channels 412 are located on the other side of the first cold-side flow channel 411 , thereby controlling the heat exchange rate within a suitable range and avoiding excessive heat exchange rate.

[0087] For example, in some embodiments, there are multiple first cold-side flow channels 411, and the multiple first cold-side flow channels 411 are arranged alternately with the hot-side flow channels 42 along the first direction F1. In other words, along the first direction F1, they are arranged in the order of one first cold-side flow channel 411 and one hot-side flow channel 42, and in the above-mentioned alternating arrangement structure, the two flow channels 40 located at both ends of the first direction F1 can both be the first cold-side flow channels 411, or one of them can be the first cold-side flow channel 411 and the other can be the hot-side flow channel 42.

[0088] The second cold-side flow channel 412 is located on a side of the outermost first cold-side flow channel 411 in the first direction F1 away from the hot-side flow channel 42 .

[0089] In the embodiment where the two flow channels 40 located at both ends of the first direction F1 are both the first cold side flow channels 411, the second cold side flow channels 412 may all be located on the same side of the alternating arrangement structure along the first direction F1, or may be partially located on one side of the alternating arrangement structure along the first direction F1 and the other partially located on the other side of the alternating arrangement structure along the first direction F1. In the embodiment where the flow channel 40 located at one end of the first direction F1 is the first cold side flow channel 411, all the second cold side flow channels 412 are located on the side of the first cold side flow channel 411 away from the hot side flow channel 42. This can achieve the separation of the second cold side flow channel 412 from the hot side flow channel 42, increase the thermal resistance, and the multiple first cold side flow channels 411 can all efficiently exchange heat with the hot side flow channel 42, thereby meeting the heat exchange efficiency and heat exchange quantity requirements, and further keeping the overall heat exchange quantity of the intermediate heat exchanger 100 within an appropriate range.

[0090] In some embodiments, there is one second cold side flow channel 412, which can reduce the flow resistance to a certain extent, and the second cold side flow channel 412 is located on the side of the first cold side flow channel 411 facing away from the hot side flow channel 42, which can achieve the purpose of increasing thermal resistance to control the heat exchange amount.

[0091] In other embodiments, Figure 2 As shown, there are multiple second cold side channels 412, and the second cold side channels 412 are arranged continuously along the first direction F1. The continuous arrangement makes at least one side of the second cold side channel 412 adjacent to another second cold side channel 412, reducing the heat exchange area between the second cold side channel 412 and the first cold side channel 411, which is more conducive to increasing the thermal resistance to control the heat exchange amount within a reasonable range.

[0092] For example, in some embodiments, Figure 2As shown, there are four second cold side flow channels 412, among which the upper side of the second cold side flow channel 412 located above is adjacent to the first cold side flow channel 411 and performs a small amount of heat exchange. The heat exchange of the adjacent second cold side flow channels 412 can be ignored, and the effect of controlling the heat exchange is better.

[0093] In some specific embodiments, Figure 2-Figure 4 As shown, the cold side medium inlet 111, the cold side medium outlet 112, the hot side medium inlet 113 and the hot side medium outlet 114 are all arranged on the upper side in the first direction F1, the hot side flow channel 42 is one and is close to four openings, the cold side flow channels 41 are five and are all located on the lower side of the hot side flow channel 42, wherein there is one first cold side flow channel 411 and there are four second cold side flow channels 412.

[0094] Since the hot side flow channel 42 is located on the upper side of the cold side flow channel 41 and close to the four openings, and the cold side flow channel 41 is located on the side of the hot side flow channel 42 facing away from the four openings, the heat exchange plate 13 defining the hot side flow channel 42 is provided with through holes 35 respectively opposite to the four openings, and the heat exchange plate 13 defining the cold side flow channel 41 is provided with through holes 35 respectively opposite to the cold side medium inlet 111 and the cold side medium outlet 112, so that the hot side medium can flow into the hot side flow channel 42 through the through holes 35, and the cold side medium can flow into the cold side flow channel 41 through the through holes 35 through the hot side flow channel 42, and there is no need to provide a hole for the hot side medium to pass through the area on the heat exchange plate 13 defining the cold side flow channel 41 opposite to the hot side medium inlet 113 and the hot side medium outlet 114.

[0095] In some embodiments, Figure 3-Figure 4 As shown, the first heat exchange fin 20 is provided with a through hole 35 respectively opposite to the cold side medium inlet 111 and the cold side medium outlet 112. The through hole 35 can be an incomplete shape, for example, part of the edge of the through hole 35 is cut off to reduce the possibility of breakage of the edge of the through hole 35, which is beneficial to improve the strength of the first heat exchange fin 20.

[0096] In some embodiments of the present invention, Figure 2 As shown, a second heat exchange fin 30 is disposed in the hot side flow channel 42 , and the density of the second heat exchange fin 30 is greater than the density of the first heat exchange fin 20 .

[0097] The greater the density of the heat exchange fins, the stronger the high pressure resistance and the greater the flow resistance. The pressure of the hot side medium is greater than that of the cold side medium. The hot side medium is not sensitive to flow resistance, while the cold side medium is very sensitive to flow resistance. Therefore, the hot side flow channel 42 corresponding to the hot side medium is provided with a second heat exchange fin 30 with a higher density to obtain a higher pressure resistance, and the cold side flow channel 41 corresponding to the cold side medium is provided with a first heat exchange fin 20 with a lower density to obtain a lower flow resistance, thereby reducing the overall flow resistance of the intermediate heat exchanger 100 and improving the pressure resistance.

[0098] The density of heat exchange fins refers to the size of the space occupied by the solid part of the heat exchange fins in a unit space, that is, the volume of the heat exchange fins in a unit space. The density of heat exchange fins can be adjusted by fin thickness, fin width, number of fins, fin spacing, etc. Among them, the greater the fin thickness, the greater the density of the heat exchange fins; the greater the fin width, the greater the density of the heat exchange fins; the greater the number of fins, the greater the density of the heat exchange fins; the smaller the fin spacing, the greater the density of the heat exchange fins.

[0099] For example, in some embodiments, the spacing between two adjacent fins of the second heat exchange fin 30 is smaller than the spacing between two adjacent fins of the first heat exchange fin 20, so that the density of the second heat exchange fin 30 is greater than the density of the first heat exchange fin 20, thereby meeting the dual requirements of pressure resistance and low flow resistance.

[0100] In some embodiments, the heat exchange capacity of the intermediate heat exchanger 100 can be adjusted by adjusting the density, installation angle, etc. of the second heat exchange fins 30 .

[0101] like Figure 5-Figure 6 As shown, the thermal management system 200 according to the embodiment of the utility model includes a collector plate 210 and an intermediate heat exchanger 100 according to the embodiment of the utility model, and the intermediate heat exchanger 100 is installed on the collector plate 210. The plate heat exchanger is integrated in the collector plate 210 as the intermediate heat exchanger 100, and is independent of the flow channel of the collector plate 210. It can adopt an inserted structure and be fixed to the collector plate 210 by bolts. Compared with the heat exchange structure in the refrigerant flow channel plate in the related art, the intermediate heat exchanger 100 has a more efficient heat exchange capacity, which can greatly reduce the plate size of the collector plate 210 and realize a compact space structure.

[0102] In addition, since the intermediate heat exchanger 100 according to the embodiment of the utility model has the above-mentioned beneficial technical effects, the thermal management system 200 according to the embodiment of the utility model makes the flow path of the hot side medium and the flow path of the cold side medium intersect in space, which can reduce the size of the intermediate heat exchanger 100 while controlling the heat exchange amount within a reasonable range, and the angle α between the arrangement direction at both ends of the first heat exchange channel and the second direction F2 satisfies α≤15°, which is beneficial to reducing the flow resistance of the intermediate heat exchanger 100, taking into account the heat exchange amount, flow resistance and spatial compactness requirements of the intermediate heat exchanger 100, and is beneficial to improving the system capacity.

[0103] In some embodiments, Figure 6As shown, the thermal management system 200 includes: an external heat exchanger 220, a cabin heat exchanger, a compressor 250 and a throttling device. The inlet of the compressor 250 is connected to the cold side medium outlet 42 of the intermediate heat exchanger 100, one of the external heat exchanger 220 and the cabin heat exchanger is connected to the cold side medium inlet 41 and the hot side medium outlet 44 of the intermediate heat exchanger 100, and the other of the external heat exchanger 220 and the cabin heat exchanger is connected to the hot side medium inlet 43 of the intermediate heat exchanger 100 and the outlet of the compressor 250, and the throttling device is connected between at least one of the external heat exchanger 220 and the cabin heat exchanger and the hot side medium outlet 44.

[0104] The external heat exchanger 220 can exchange heat with the external environment outside the cabin, and the cabin heat exchanger can exchange heat with the environment inside the cabin. The compressor 250 is used to drive the flow of the heat exchange medium in the circuit to achieve heat exchange between the cabin and the external environment through the circulation of the heat exchange medium.

[0105] One of the external heat exchanger 220 and the cabin heat exchanger is formed as a condenser, and the other is formed as an evaporator. By arranging the intermediate heat exchanger 100 between the condenser and the evaporator of the circulation loop, the intermediate heat exchanger 100 is used to guide the refrigerant liquid condensed by the condenser and the refrigerant vapor after absorbing heat and vaporizing by the evaporator to exchange heat, thereby increasing the degree of subcooling before the throttling device, thereby reducing throttling losses and improving refrigeration efficiency.

[0106] In some embodiments, continue to refer to Figure 6 As shown, the cabin heat exchanger includes a cabin evaporator 230 and a cabin condenser 240, and the throttling device includes a first throttle valve 261 and a second throttle valve 262. The cabin condenser 240 is connected to the outlet of the compressor 250 and the hot side medium inlet 43, the cabin evaporator 230 is connected to the cold side medium inlet 41 and the hot side medium outlet 44, the external heat exchanger 220 is connected to the outlet of the compressor 250 and the hot side medium inlet 43, the first throttle valve 261 is connected between the hot side medium outlet 44 and the external heat exchanger 220, and the second throttle valve 262 is connected between the hot side medium outlet 44 and the cabin evaporator 230.

[0107] Thus, the cabin evaporator 230 and the cabin condenser 240 are connected to different openings of the intermediate heat exchanger 100 through different branches, and by providing two throttle valves, the flow paths of the refrigerant in the cabin heat exchanger and the external heat exchanger 220 can be switched, thereby achieving function switching.

[0108] Specifically, the thermal management system 200 has a heating mode and a cooling mode. In the cooling mode, the compressor 250, the external heat exchanger 220, the hot side flow channel 32 of the intermediate heat exchanger 100, the first throttle valve 261, the cabin evaporator 230 and the cold side flow channel of the intermediate heat exchanger 100 are connected to form a first refrigerant circulation flow path. In the heating mode, the compressor 250, the cabin condenser 240, the hot side flow channel 32 of the intermediate heat exchanger 100, the second throttle valve 262, the external heat exchanger 220 and the cold side flow channel of the intermediate heat exchanger 100 are connected to form a second refrigerant circulation flow path.

[0109] In some embodiments, Figure 6 As shown, the thermal management system 200 may further include a liquid storage tank 280, a first on-off valve 271, a second on-off valve 272, a third on-off valve 273, a fourth on-off valve 274, a fifth on-off valve 275, and a sixth on-off valve 276. The outlet of the liquid storage tank 280 is connected to the hot side medium inlet 43 of the intermediate heat exchanger 100, and the outlet of the cabin condenser 240 and the outlet of the external heat exchanger 220 are both connected to the inlet of the liquid storage tank 280. The external heat exchanger 220 has a first connection end and a second connection end.

[0110] The first on-off valve 271 is connected between the outlet of the compressor 250 and the inlet of the cabin condenser 240, the second on-off valve 272 is connected between the outlet of the compressor 250 and the first connection end of the external heat exchanger 220, the third on-off valve 273 is connected between the outlet of the cabin condenser 240 and the inlet of the liquid storage tank 280, the fourth on-off valve 274 is connected between the second connection end of the external heat exchanger 220 and the inlet of the liquid storage tank 280, the fifth on-off valve 275 is connected between the first connection end of the external heat exchanger 220 and the cold side medium inlet 41 of the intermediate heat exchanger 100, and the sixth on-off valve 276 is connected between the outlet of the cabin evaporator 230 and the cold side medium inlet 41 of the intermediate heat exchanger 100.

[0111] In the cooling mode, the first on-off valve 271, the third on-off valve 273, the fifth on-off valve 275 and the second throttle valve 262 are disconnected, and the second on-off valve 272, the fourth on-off valve 274, the sixth on-off valve 276 and the first throttle valve 261 are connected; in the heating mode, the first on-off valve 271, the third on-off valve 273, the fifth on-off valve 275 and the second throttle valve 262 are connected, and the second on-off valve 272, the fourth on-off valve 274, the sixth on-off valve 276 and the first throttle valve 261 are disconnected, thereby realizing mode switching and simple control.

[0112] like Figure 7As shown, the vehicle 1000 according to the embodiment of the utility model includes the thermal management system 200 according to the embodiment of the utility model. Since the thermal management system 200 according to the embodiment of the utility model has the above-mentioned beneficial technical effects, the vehicle 1000 according to the embodiment of the utility model makes the flow path of the hot side medium and the flow path of the cold side medium intersect in space, which can reduce the size of the intermediate heat exchanger 100 while controlling the heat exchange amount to be within a reasonable range, and the angle α between the arrangement direction of the two ends of the first heat exchange channel and the second direction F2 satisfies α≤15°, which is conducive to reducing the flow resistance of the intermediate heat exchanger 100, taking into account the requirements of the heat exchange amount, flow resistance and space compactness of the intermediate heat exchanger 100, and is conducive to improving the system capacity.

[0113] The thermal management system 200 disclosed in the embodiment of the present application can be used in a device that needs to use the thermal management system 200 or a control system of the thermal management system 200. The device can be, but is not limited to, a vehicle, a ship, a spacecraft, etc. Among them, the spacecraft can include an airplane, a rocket, a space shuttle, and a spacecraft.

[0114] Among them, vehicle 1000 can be a new energy vehicle. In some embodiments, the new energy vehicle can be a pure electric vehicle with a motor as the main driving force. In other embodiments, the new energy vehicle can also be a hybrid vehicle or an extended-range vehicle with an internal combustion engine and a motor as the main driving force. Regarding the internal combustion engine and motor mentioned in the above embodiments that provide driving power for the new energy vehicle, the internal combustion engine can use gasoline, diesel, hydrogen, etc. as fuel, and the way to provide electrical energy to the motor can use power batteries, hydrogen fuel cells, etc., which are not specifically limited here. It should be noted that this is only an exemplary description of the structure of new energy vehicles, etc., and it does not limit the scope of protection of the utility model.

[0115] In some embodiments, the thermal management system 200 is an important component for regulating the vehicle cabin environment (temperature, humidity, etc.) and the working environment of other components, wherein the thermal management system 200 mainly includes: valves, heat exchangers, compressors and pumps, such as electronic water pumps or other water pumps, wherein the thermal management system 200 has a circulating refrigerant, which may be Freon, propane, etc.

[0116] A thermal management system 200 according to a specific embodiment of the present invention is described in detail below with reference to the accompanying drawings. It should be understood that the following description is only an exemplary illustration and cannot be construed as a limitation to the present invention.

[0117] like Figure 1-Figure 6As shown, the thermal management system 200 includes a collecting plate 210 and an intermediate heat exchanger 100. The cold side medium inlet 111, the cold side medium outlet 112, the hot side medium inlet 113 and the hot side medium outlet 114 of the intermediate heat exchanger 100 are arranged on the same side of the heat exchanger body 10 in the up and down direction, so that the intermediate heat exchanger 100 can be independent of the collecting plate 210, and the pipeline connection is realized by adopting an insert structure through four openings, and the sealing is realized by adopting a sealing ring. The intermediate heat exchanger 100 is fixed on the collecting plate 210 by fasteners to realize structural integration, which can greatly reduce the plate size of the collecting plate 210 and realize a compact structure.

[0118] The intermediate heat exchanger 100 includes a heat exchanger body 10, a first heat exchange fin 20, and a second heat exchange fin 30. The heat exchanger body 10 includes a mounting plate 11, a bottom plate 12 located below the mounting plate 11, and a plurality of heat exchange plates 13 located between the mounting plate 11 and the bottom plate 12. The distance between the left side and the right side of the heat exchanger body 10 is L1, and the distance between the front side and the rear side is L2, and L1 / L2 is equal to 1.

[0119] The mounting plate 11 is provided with a cold side medium inlet 111, a cold side medium outlet 112, a hot side medium inlet 113 and a hot side medium outlet 114, and a line connecting the center of the cold side medium inlet 111 and the center of the cold side medium outlet 112 is T1, a line connecting the center of the hot side medium inlet 113 and the center of the hot side medium outlet 114 is T2, and T1 is perpendicular to T2.

[0120] A plurality of heat exchange plates 13 are stacked in the vertical direction, and the space between the mounting plate 11 and the bottom plate 12 is divided into six heat exchange layers, each heat exchange layer forms a flow channel 40, and a heat exchange fin is arranged in the flow channel 40. The six flow channels 40 include a hot side flow channel 42, a first cold side flow channel 411, and four second cold side flow channels 412 arranged from top to bottom. The first heat exchange fin 20 is arranged in the cold side flow channel 41, and the second heat exchange fin 30 is arranged in the hot side flow channel 42. The density of the second heat exchange fin 30 is greater than that of the first heat exchange fin 20. The first heat exchange fin 20 divides the cold side flow channel 41 into a plurality of first heat exchange channels 212 arranged along the third direction F3. The first heat exchange channel 212 is a linear channel extending along the second direction F2, that is, α=0°, and adjacent first heat exchange channels 212 are connected through the second heat exchange channel 221.

[0121] In the above embodiment, L1 / L2 is equal to 1, and T1 is perpendicular to T2, which is conducive to improving the heat exchange efficiency, and is conducive to reducing the size of the intermediate heat exchanger 100 while controlling the heat exchange amount within a reasonable range, thereby improving the spatial compactness of the intermediate heat exchanger 100. The first heat exchange channel 212 extends parallel to the second direction F2, which is conducive to reducing the size of the intermediate heat exchanger 100 while reducing the flow resistance. The number of cold side channels 41 is greater than the number of hot side channels 42, and the second cold side channel 412 is not directly adjacent to the hot side channel 42, so that the cold side medium in the second cold side channel 412 does not participate in the heat exchange, or the cold side medium in the second cold side channel 412 participates in the heat exchange, but due to the large thermal resistance, the heat exchange effect is reduced, and the effect of controlling the heat exchange amount within a reasonable range is better. The density of the second heat exchange fin 30 is greater than the density of the first heat exchange fin 20, so that the overall flow resistance of the intermediate heat exchanger 100 is reduced and the pressure resistance is improved.

[0122] Therefore, the heat exchange range, low flow resistance and high pressure resistance required by the thermal management system 200 can be met, and the space compactness is good.

[0123] Other structures and operations of the thermal management system 200 and the vehicle 1000 according to the embodiment of the present invention are well known to those skilled in the art and will not be described in detail herein.

[0124] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0125] In the description of this specification, the description with reference to the terms "embodiment", "specific embodiment", "example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0126] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. An intermediate heat exchanger, characterized in that: include: A heat exchanger body, the heat exchanger body having a plurality of flow channels arranged along a first direction, a cold side medium inlet and a cold side medium outlet arranged along a second direction, and a hot side medium inlet and a hot side medium outlet arranged along a third direction, the plurality of flow channels comprising a cold side flow channel and a hot side flow channel, the cold side medium inlet and the cold side medium outlet are both connected to the cold side flow channel and used for circulating the cold side medium, the hot side medium inlet and the hot side medium outlet are both connected to the hot side flow channel and used for circulating the hot side medium, the second direction intersects the third direction and the second direction and the third direction are respectively perpendicular to the first direction; The first heat exchange fin is arranged on the cold side flow channel and divides the cold side flow channel into a plurality of first heat exchange channels, adjacent first heat exchange channels are connected through a second heat exchange channel, and the angle between the arrangement direction of the two ends of the first heat exchange channel and the second direction is α, α≤15°.

2. The intermediate heat exchanger according to claim 1, characterized in that: The first heat exchange channel extends parallel to the second direction, and a plurality of the first heat exchange channels are arranged at intervals along the third direction.

3. The intermediate heat exchanger according to claim 2, characterized in that: The second heat exchange channel extends along the third direction.

4. The intermediate heat exchanger according to any one of claims 1 to 3, characterized in that: The first heat exchange fins include a plurality of first fin groups arranged along the third direction, the first fin groups include a plurality of first fins arranged at intervals along the second direction, the first fins extend perpendicular to the first direction, and the first fins are connected to second fins extending parallel to the first direction, wherein: The first heat exchange channel is defined between two adjacent first fin groups, and / or one side wall of the cold side flow channel along the first direction abuts against the first fin group and the first heat exchange channel is defined between the other side wall and the first fin group; The second heat exchange channel is defined between two adjacent second fins.

5. The intermediate heat exchanger according to claim 1, characterized in that: The heat exchanger body has four corners, and the cold side medium inlet, the cold side medium outlet, the hot side medium inlet and the hot side medium outlet are respectively arranged at the four corners.

6. The intermediate heat exchanger according to claim 5, characterized in that: The heat exchanger body includes a mounting plate, a bottom plate and a plurality of heat exchange plates arranged between the mounting plate and the bottom plate, the mounting plate has the four corners and is provided with the cold side medium inlet, the cold side medium outlet, the hot side medium inlet and the hot side medium outlet, and the plurality of heat exchange plates divide the space between the mounting plate and the bottom plate into a plurality of flow channels.

7. The intermediate heat exchanger according to claim 1, characterized in that: The heat exchanger body has two sides opposite to each other along a fourth direction and two sides opposite to each other along a fifth direction, and the fourth direction, the fifth direction and the first direction are perpendicular to each other. The distance between two opposite sides along the fourth direction is L1, the distance between two opposite sides along the fifth direction is L2, and L1 / L2 is greater than or equal to 1 and less than or equal to 1.

5.

8. The intermediate heat exchanger according to claim 7, characterized in that: In the fourth direction, the arrangement direction of the cold side medium inlet and the cold side medium outlet is opposite to the arrangement direction of the hot side medium inlet and the hot side medium outlet; in the fifth direction, the arrangement direction of the cold side medium inlet and the cold side medium outlet is the same as the arrangement direction of the hot side medium inlet and the hot side medium outlet.

9. The intermediate heat exchanger according to claim 1, characterized in that: The number of the cold-side flow channels is greater than the number of the hot-side flow channels, and the cold-side flow channels include a first cold-side flow channel and a second cold-side flow channel, wherein the first cold-side flow channel is adjacent to the hot-side flow channel, and the second cold-side flow channel is spaced apart from the hot-side flow channel.

10. The intermediate heat exchanger according to claim 9, characterized in that: The second cold-side flow channel is located on a side of the first cold-side flow channel facing away from the hot-side flow channel to be spaced apart from the hot-side flow channel.

11. The intermediate heat exchanger according to claim 10, characterized in that: There are one or more first cold-side flow channels, and the plurality of first cold-side flow channels and the hot-side flow channels are arranged alternately along the first direction, wherein the second cold-side flow channel is located on a side of the first cold-side flow channel at the outermost end in the first direction away from the hot-side flow channel; and / or, The second cold-side flow channel is one or a plurality of second cold-side flow channels continuously arranged along the first direction.

12. The intermediate heat exchanger according to claim 1, characterized in that: A second heat exchange fin is disposed in the hot side flow channel, and the density of the second heat exchange fin is greater than the density of the first heat exchange fin.

13. A thermal management system, characterized in that: Comprising an intermediate heat exchanger according to any one of claims 1-12.

14. A vehicle, characterized in that: Comprising a thermal management system according to claim 13.

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