Heat exchange device
By designing a distribution groove extending along the thickness direction in the heat exchange device and aligning it with the flow channel between the plates, the problem of uneven fluid distribution caused by manufacturing errors is solved, achieving more efficient fluid distribution and heat exchange effects.
Patent Information
- Authority / Receiving Office
- WO · WO
- Patent Type
- Applications
- Current Assignee / Owner
- ZHEJIANG SANHUA INTELLIGENT CONTROLS CO LTD
- Filing Date
- 2025-12-19
- Publication Date
- 2026-07-16
AI Technical Summary
In heat exchange devices, manufacturing process errors can cause distribution holes and flow channels to not correspond accurately, affecting the uniformity of fluid distribution.
A heat exchange device is designed by setting distribution grooves extending along the thickness direction on the plates. The distribution grooves are aligned with the inter-plate flow channels to form distribution ports that communicate with the first and second sub-plate flow channels respectively. This reduces the alignment risk caused by manufacturing errors and improves the accuracy of the distribution grooves and inter-plate flow channels.
It improves the uniformity of fluid distribution and enhances the overall heat exchange effect of the heat exchange device.
Smart Images
Figure CN2025143914_16072026_PF_FP_ABST
Abstract
Description
heat exchanger Technical Field
[0001] This application relates to the field of heat exchange technology, and more particularly to a heat exchange device. Background Technology
[0002] A heat exchanger is a device used to transfer heat between different fluids, playing a vital role in industrial production, energy utilization, and environmental control. A heat exchanger comprises multiple plates stacked to form multiple flow channels. Fluids at different temperatures flow into these channels from the outside of the heat exchanger, exchanging heat through the temperature differences between the plates. The heat exchanger includes a distributor and distribution channels. The distribution channels communicate with the multiple flow channels. To improve the heat exchange uniformity, the distributor includes multiple distribution orifices. Fluid flows into the distribution channels from these orifices for distribution, thus enhancing the uniformity of fluid distribution.
[0003] However, when installing the distributor, multiple distribution holes and multiple flow channels need to correspond one-to-one. Due to manufacturing errors, it is difficult to accurately correspond multiple distribution holes and multiple flow channels one-to-one, thus affecting the uniformity of fluid distribution in the heat exchange device. Summary of the Invention
[0004] This application aims to provide a heat exchange device with precise alignment between the distribution groove and the flow channel between the plates, so as to improve the uniformity of fluid distribution in the heat exchange device.
[0005] Therefore, this application provides a heat exchange device having an inter-plate flow channel. The heat exchange device includes multiple plates stacked along the thickness direction of the heat exchange device. At least a portion of the plates is used to form the inter-plate flow channel, which includes a first sub-inter-plate flow channel and a second sub-inter-plate flow channel. The heat exchange device includes a distributor having a distribution channel and a distribution groove. The distribution channel communicates with the distribution groove. A direction perpendicular to the thickness direction of the heat exchange device is defined as a first direction. Along the first direction, the distribution groove penetrates the sidewall of the distribution channel. The distribution groove includes a distribution port, which includes a first distribution port and a second distribution port. The first distribution port communicates with the first sub-inter-plate flow channel and the distribution channel, and the second distribution port communicates with the second sub-inter-plate flow channel and the distribution channel. The distributor includes a distribution cylinder, which is a partial wall of the distribution channel and a partial wall of the distribution port. The plates are partial walls of the distribution port.
[0006] .
[0007] The distribution groove extends at least partially along the thickness direction of the heat exchange device, and multiple plates are stacked along the thickness direction of the heat exchange device, so that the distribution groove extending along the thickness direction of the heat exchange device and the inter-plate flow channels between the plates are aligned to form distribution ports that are respectively connected to the first sub-plate flow channel and the second sub-plate flow channel. The distribution groove is connected to the first sub-plate flow channel through the distribution port, and the distribution groove is connected to the second sub-plate flow channel through the distribution port. This reduces the risk that the distribution port and multiple flow channels may not correspond one-to-one due to manufacturing process errors, improves the accuracy of the alignment between the distribution groove and the inter-plate flow channel, and thus improves the uniformity of fluid distribution in the heat exchange device. Attached Figure Description
[0008] Figure 1 is a perspective view of a heat exchange device provided in one embodiment of this application;
[0009] Figure 2 is an explosion diagram of the heat exchange device shown in Figure 1;
[0010] Figure 3 is a three-dimensional schematic diagram of the distributor in the heat exchange device shown in Figure 1;
[0011] Figure 4 is a cross-sectional schematic diagram of the heat exchange device shown in Figure 1;
[0012] Figure 5 is a cross-sectional view of the heat exchange device shown in Figure 4 from another angle.
[0013] Figure 6 is an exploded schematic diagram of the distributor shown in Figure 3;
[0014] Figure 7 is a schematic projection of a heat exchange device provided in one embodiment of the application;
[0015] Figure 8 is a schematic projection of a heat exchange device provided in one embodiment of the application;
[0016] Figure 9 is a partial structural schematic diagram of the heat exchange device shown in Figure 1. Detailed Implementation
[0017] To better understand the technical solution of this application, the technical solution of this application will be described in detail below with reference to the accompanying drawings.
[0018] In related technologies, the heat exchange device 100 distributes fluid to the second inter-plate flow channel 103 through multiple distribution grooves 22. Due to manufacturing process errors, during installation, the multiple distribution grooves 22 cannot correspond one-to-one with each second inter-plate flow channel 103, resulting in poor fluid distribution uniformity. In this application, the heat exchange device 100 has an inter-plate flow channel 104. The heat exchange device 100 includes multiple plates 101, which are stacked along the thickness direction of the heat exchange device. At least a portion of the plates 101 is used to form the inter-plate flow channel 104, which includes a first sub-inter-plate flow channel 1031 and a second sub-inter-plate flow channel 1032. As shown in Figures 1 and 3, the heat exchange device 100 includes a distributor 2, which has a distribution channel 21 and a distribution groove 22. The distribution channel 21 and the distribution groove 22 are connected. A direction perpendicular to the thickness direction of the heat exchange device 100 is defined as a first direction W1. Along the first direction W1, the distribution groove 22 penetrates the side wall of the distributor 2. The distribution groove 22 includes a distribution port 40, which includes a first distribution port 41 and a second distribution port 42. The first distribution port 41 connects the first sub-plate inter-flow channel 1031 and the distribution channel 21, and the second distribution port 42 connects the first sub-plate inter-flow channel 1031 and the distribution channel 21. The distribution port 42 connects the second sub-plate inter-channel 1032 and the distribution channel 21. The distributor 2 includes a distribution cylinder 23, which forms part of the wall of the distribution channel 21 and part of the wall of the distribution port 40. The plate 101 forms part of the wall of the distribution port 40. In other words, the distribution port 40 connects the first sub-plate inter-channel 1031 and the distribution channel 21, or the distribution port 40 connects the second sub-plate inter-channel 1032 and the distribution channel 21. The distribution groove 22 extends at least partially along the thickness direction of the heat exchange device 100. The plane perpendicular to the first direction W1 is defined as the projection plane. As shown in Figure 8, the orthographic projection of plate 101 on the projection plane is plate projection P101, and the orthographic projection of the wall of distribution groove 22 on the projection plane is distribution groove projection P0. A portion of the plate projection P101 of at least one of the plurality of plates 101 is located within the distribution groove projection P0. The distribution groove 22 extends at least partially along the thickness direction of the heat exchange device. The plurality of plates are stacked along the thickness direction of the heat exchange device 100, such that the distribution groove 22 extending along the thickness direction of the heat exchange device 100... The inter-plate flow channels between the plates 101 are aligned to form distribution ports 40 that are respectively connected to the first sub-plate flow channel 1031 and the second sub-plate flow channel 1032. The distribution channel is connected to the first sub-plate flow channel 1031 through the distribution port, and the distribution channel is connected to the second sub-plate flow channel 1032 through the distribution port 40. This reduces the risk that the distribution port 40 and multiple flow channels may not correspond one-to-one due to manufacturing process errors, improves the accuracy of the alignment between the distribution channel and the inter-plate flow channel, and thus improves the uniformity of fluid distribution in the heat exchange device.
[0019] In one embodiment, the orthographic projection of the wall of the dispensing port 40 onto the projection plane is the dispensing port projection P40. The dispensing port projection P40 includes a first portion P401 and a second portion P402. The plate projection P101 includes the first portion P401, and the dispensing groove projection P0 includes the second portion P402. The dispensing port projection P0 is a closed curve, and the first portion P401 and the second portion P402 are each part of the closed curve. The first portion P401 and the second portion P402 intersect each other, for example, the first portion is perpendicular to the second portion, as shown in Figures 2 and 8.
[0020] The distribution groove extends at least partially along the thickness direction of the heat exchange device, making the distribution groove at least partially elongated. A portion of the projection of at least one of the multiple plates is located within the projection of the distribution groove. The projection of the distribution port includes a first portion, the projection of the plate includes the first portion, and the projection of the distribution groove includes a second portion. That is, the elongated distribution groove and the position of the plates form a first portion and a second portion, allowing the distribution groove to directly communicate with the flow channel between the first and second sub-plates through the first portion and directly with the flow channel between the second and third sub-plates through the second portion. This reduces the risk that manufacturing errors may prevent the first and second portions from corresponding one-to-one with the multiple flow channels, improving the accuracy of the alignment between the distribution groove and at least two flow channels, thereby improving the uniformity of fluid distribution in the heat exchange device.
[0021] Further, in one embodiment, as shown in FIG2, the inter-plate flow channel 104 includes a first inter-plate flow channel 102 and at least two second inter-plate flow channels 103, the first inter-plate flow channel 102 and at least two second inter-plate flow channels 103 being fluidly isolated, and the at least two second inter-plate flow channels 103 including a first sub-inter-plate flow channel 1031 and a second sub-inter-plate flow channel 1032; the heat exchange device 100 includes a first plate 31, a second plate 32 and a third plate 33, and along the thickness direction of the heat exchange device 100, the second plate 32 is located between the first plate 31 and the third plate 33, the first plate 31 and the second plate 33... The first plate 31 and the third plate 32 are stacked along the axial direction of the distribution channel 21. At least a portion of the first plate 31 and at least a portion of the second plate 32 are part of the wall of the first sub-plate flow channel 1031. At least a portion of the second plate 32 and at least a portion of the third plate 33 are part of the wall of the first sub-plate flow channel 102. At least a portion of the third plate 33 is part of the wall of the second sub-plate flow channel 1032. In this case, the fluid in the first sub-plate flow channel 1031 and the fluid in the first inter-plate flow channel 102 exchange heat through the second plate 32. Generally, the fluid in the first inter-plate flow channel 102 is water, and the fluid in the second inter-plate flow channel 103 is refrigerant. As shown in Figure 4, the distribution port 40 has a first distribution port 41 and a second distribution port 42. The first distribution port 41 connects the first sub-board inter-channel 1031 and the distribution groove 22, and the second distribution port 42 connects the second sub-board inter-channel 1032 and the distribution groove 22. As shown in Figure 7, the orthographic projection of the first plate 31 on the projection plane is the first projection P1, the orthographic projection of the second plate 32 on the projection plane is the second projection P2, and the orthographic projection of the third plate 33 on the projection plane is the third projection P3. A portion of the first projection P1, a portion of the second projection P2, and a portion of the third projection P3 are all located within the distribution groove projection P0. The distribution groove 22 extends at least partially along the thickness direction of the heat exchange device 100, making the distribution groove 22 at least partially elongated. The first distribution port 41 and the second distribution port 42 are formed by the positional arrangement of the first plate 31, the second plate 32, the third plate 33 and the elongated distribution groove 22, so that the distribution groove 22 is directly connected to at least two second inter-plate flow channels 103 through the first distribution port 41 and the second distribution port 42. This reduces the risk that multiple distribution grooves 22 and at least two second inter-plate flow channels 103 may not correspond one-to-one due to manufacturing process errors, improves the accuracy of the alignment of the distribution groove 22 and at least two second inter-plate flow channels 103, and thus improves the uniformity of fluid distribution.
[0022] Furthermore, in one embodiment, as shown in FIG5, at least one of the first plate 31, the second plate 32, and the third plate 33 includes a flanged portion 50 and a flat portion 51. The flanged portion 50 is closer to the distribution channel 21 than the flat portion 51. The flat portion 51 is at least partially perpendicular to the thickness direction of the heat exchange device 100. The flanged portion 50 protrudes from the flat portion 51. The flanged portion 50 and the flat portion 51 are integral. In one embodiment, as shown in FIG5, the flanged portion 50 and the flat portion 51 form a rounded corner R. The rounded corner R simplifies the manufacturing process of the flanged portion 50 and the flat portion 51 while strengthening the connection strength between them. In one embodiment, the rounded corner R is 0.2-0.6.
[0023] The thickness direction of the heat exchanger 100 is parallel to the axial direction of the distribution channel 21. In one embodiment, as shown in Figures 2 and 5, the flanged portion 50 includes a first flanged portion 501 and a second flanged portion 502, the flat plate portion 51 includes a first flat plate portion 511 and a second flat plate portion 512, and the first distribution port 41 is formed by the walls of the first flanged portion 501, the second flanged portion 502, and the distribution groove 22. In one embodiment, the first plate 31 includes a first flanged portion 501 and a first flat plate portion 511, and the second plate 32 includes a second flanged portion 502 and a second flat plate portion 512. The first flanged portion 501 protrudes from the first flat plate portion 511 in a direction close to the second plate 32, and the second flanged portion 502 protrudes from the second flat plate portion 512 in a direction close to the first plate 31. The flow area of the first distribution port 41 can be adjusted by the first flanged portion 501 and the second flanged portion 502. The first flat plate portion 511 and the second flat plate portion 512 are both part of the walls of the first sub-plate inter-flow channel 1031.
[0024] In one embodiment, as shown in FIG5, a first flange portion 501 protrudes from a first flat plate portion 511 along a second direction W2, and a second flange portion 502 protrudes from a second flat plate portion 512 along a third direction W3. Both the second direction W2 and the third direction W3 are parallel to the axial direction of the distribution channel 21, and the second direction W2 is opposite to the third direction W3. That is, at least a portion of the first flange portion 501 and at least a portion of the first flat plate portion 511 are at right angles, at least a portion of the second flange portion 502 and at least a portion of the second flat plate portion 512 are at right angles, and the extending direction of the first flange portion 501 is opposite to the extending direction of the second flange portion 502.
[0025] When the flow area of the first distribution port 41 is constant, the heights of the first flange 501 and the second flange 502 are adjustable. Specifically, in one embodiment, as shown in FIG5, along the axial direction of the heat exchange device 100, the heat exchange device 100 has a plate spacing H1, defined as the distance between the first plate 31 and the second plate 32. The first flange 501 has a first height h1, the second flange 502 has a second height h2, and the distance between the first flange 501 and the second flange 502 is a third height h3; wherein, h3 + h1 + h2 = H1, and h3 = (30% ~ 50%) H1. Based on h3 = (30% ~ 50%) H1, the heights of the second height h2 and the third height h3 are adjusted.
[0026] In one embodiment, as shown in FIG5, the third plate 33 includes a third flange portion 503 and a third flat plate portion 513. The third flange portion 503 is a portion of the wall of the second distribution port 42, and the third flat plate portion 513 is a portion of the wall of the second sub-plate inter-channel 1032. Along the axial direction of the distribution channel 21, the third plate 33 is located away from the first plate 31 relative to the second plate 32. The third plate 33 is disposed adjacent to the second plate 32, and the third flange portion 503 protrudes from the third flat plate portion 513 in a direction away from the second plate 32. Specifically, the extending direction of the third flange portion 503 is opposite to the extending direction of the second flange portion 502.
[0027] In one embodiment, as shown in FIG5, the heat exchange device 100 includes two first plates 31, wherein the two first plates 31 are located at the two ends of the third plate 33 and the second plate 32 respectively along the axial direction of the distribution channel 21. In another embodiment, the heat exchange device 100 includes a plate group 35, which includes a first plate 31, a second plate 32 and a third plate 33. The heat exchange device 100 includes at least two plate groups 35, which are stacked along the axial direction of the distribution channel 21.
[0028] In one embodiment, as shown in FIG6, the distributor 2 includes a distribution cylinder 23 and an orifice plate 24. The distribution cylinder 23 has a partial distribution channel 21. The orifice plate 24 is connected to the distribution cylinder 23 and has a first through hole 241. The first through hole 241 connects the outside to the distribution channel 21. Along the first direction W1, the center of the first through hole 241 is farther away from the center of the distribution channel 21 than the distribution groove 22. In this way, the refrigerant enters the distribution channel 21 from the first through hole 241 and rebounds when it reaches the bottom. The rebounded portion of the refrigerant is distributed through the distribution groove 22, thereby improving the distribution uniformity of the distributor 2. Furthermore, the flow area of the first distribution port 41 accounts for 10%-20% of the flow area of the first through hole 241, and the flow area of the second distribution port 42 accounts for 10%-20% of the flow area of the first through hole 241.
[0029] In one embodiment, as shown in FIG3, the orifice plate 24 has a second through hole 242, the flow area of which is smaller than that of the first through hole 241. Along the first direction, the second through hole 242 is closer to the distribution groove 22 than the first through hole 241. In this way, a portion of the refrigerant can enter the distribution channel 21 through the second through hole 242, and the fluid is distributed in the distribution groove 22 on the side closer to the orifice plate 24. This compensates for the portion of the refrigerant that does not reach the side closer to the orifice plate 24 when it enters the distribution channel 21 through the first through hole 241 and rebounds, thereby improving the uniformity of refrigerant distribution and thus improving the heat exchange uniformity of the heat exchange device 100.
[0030] In one embodiment, the distribution groove 22 extends through the distribution cylinder 23 along the thickness direction of the heat exchange device 100. As shown in FIG3, the distribution groove 22 extends along the thickness direction of the heat exchange device 100. In order to improve the strength of the distribution cylinder 23 itself and prevent it from being interfered with by the distribution groove 22, in one embodiment, as shown in FIG6, the distributor 2 includes a bottom cylinder 25, which is part of the wall of the distribution channel 21. The distribution cylinder 23 includes a first end 231 and a second end 232. Along the thickness direction of the heat exchange device 100, the first end 231 and the second end 232 are the two ends of the distribution cylinder 23, respectively. In other words, along the axial direction of the distribution channel 21, the orifice plate 24 is located on one side of the distribution cylinder 23, and the bottom cylinder 25 is located on the other side of the distribution cylinder 23. The distribution cylinder 23 is connected to the bottom cylinder 25. The orifice plate 24 is fixedly connected to the first end 231, and the bottom cylinder 25 is fixedly connected to the second end 232. The connection between the distribution cylinder 23 and the bottom cylinder 25 improves the strength of the distribution cylinder 23. Furthermore, the bottom cylinder 25 is at least partially an annular structure 255, which is located at least partially within the distribution cylinder 23. The annular structure 255 provides a surrounding force to the distribution cylinder 23. Specifically, as shown in Figure 9, the bottom cylinder 25 includes a first wall portion 251 and a second wall portion 252, which are integral. The first wall portion 251 is an annular structure, and the distribution cylinder 23 is cylindrical. The first wall portion 251 is connected to the distribution cylinder 23, and the first wall portion 251 is directly connected to the distribution cylinder 23. Furthermore, the first wall portion 251 is located within the distribution cylinder 23, and the second wall portion 252 is at least partially located on the periphery of the distribution cylinder 23.
[0031] In one embodiment, as shown in FIG6, the heat exchange device 100 has a first groove 253, which is recessed from the first wall portion 251 away from the orifice plate 24 along the thickness direction of the heat exchange device 100; the first groove 253 and the distribution groove 22 are at least partially aligned along a first direction. In this way, the refrigerant is distributed from the distribution channel 21 through the distribution groove 22 and through the first groove 253 in the first wall portion 251, and the uniformity of distribution is not affected by the first wall portion 251 surrounding the distribution cylinder 23.
[0032] In one embodiment, as shown in FIG3, the heat exchange device 100 includes at least two or more distribution grooves 22, which are arranged vertically along the circumferential direction of the distribution cylinder 23, and at least two distribution grooves 22 are spaced apart from each other.
[0033] Multiple rows of elongated distribution grooves 22 can increase the distribution efficiency of refrigerant. As shown in Figure 6, the bottom cylinder has a through hole 254, which is disposed through the bottom cylinder along the thickness direction of the heat exchange device 100; in another embodiment, the heat exchange device 100 includes a bottom plate 26, which is connected to the bottom cylinder 25, and the bottom plate 26 and the distribution cylinder 23 are respectively located on both sides of the through hole 254 along the thickness direction of the heat exchange device 100.
[0034] Specifically, the base plate 26 is part of the wall of the distribution channel 21. The base plate 26 and the perforated plate 24 are located at opposite ends of the distribution channel 21, as shown in Figure 6. The base plate 26 has a second groove 261 that is recessed away from the perforated plate 24. The base plate 26 includes an arc surface 260 located in the second groove 261, which is part of the wall surface of the distribution channel 21. Along the axial direction of the distribution channel 21, the arc surface 261 is recessed from the base plate 26 away from the distribution channel 21. When the refrigerant hits the base plate 26, the second groove 261 increases the resilience of the base plate 26 to the refrigerant, increasing the refrigerant's resilience height. The rebounded refrigerant can continue to be distributed, improving distribution efficiency. In one embodiment, the base plate 26 is connected to the second wall portion 252. In another embodiment, the bottom cylinder 25 includes a second wall portion 252, a first wall portion 251 extending from the inner wall of the second wall portion 252 toward a direction close to its axis, and a through hole 254 passing through both ends of the second wall portion 252 in the axial direction.
[0035] In one embodiment, as shown in FIG6, the heat exchange device 100 includes an inlet 61 connected to an orifice plate 24. The inlet 61 has an inlet 611 and a first through hole 241 connecting the inlet 611 and the distribution channel 21.
[0036] The above examples illustrate the principles and implementation methods of the present invention. These embodiments are merely illustrative and intended to aid in understanding the method and core concepts of the present invention. It should be noted that those skilled in the art can make various improvements and modifications to the present invention without departing from its principles, and these improvements and modifications also fall within the scope of protection of the present invention.
Claims
1. A heat exchange device, wherein, The heat exchange device (100) has an interplate flow channel (104). The heat exchange device (100) includes a plurality of plates (101) stacked along the thickness direction of the heat exchange device (100). At least a portion of the plates (101) is used to form the interplate flow channel (104). The interplate flow channel (104) includes a first sub-interplate flow channel (1031) and a second sub-interplate flow channel (1032). The heat exchange device (100) includes a distributor (2), which has a distribution channel (21) and a distribution groove (22). The distribution channel (21) communicates with the distribution groove (22). A direction perpendicular to the thickness direction of the heat exchange device (100) is defined as a first direction (W1). Along the first direction (W1), the distribution groove (22) penetrates the side wall of the distributor (2). The distribution slot (22) includes a distribution port (40), the distribution port (40) includes a first distribution port (41) and a second distribution port (42), the first distribution port (41) connects the first sub-board inter-flow channel (1031) and the distribution channel (21), the second distribution port (42) connects the second sub-board inter-flow channel (1032) and the distribution channel (21); the distributor (2) includes a distribution cylinder (23), the distribution cylinder (23) is part of the wall of the distribution channel (21), the distribution cylinder (23) is part of the wall of the distribution port (40), and the plate (101) is part of the wall of the distribution port (40).
2. The heat exchange device according to claim 1, wherein, The distribution groove (22) extends at least partially along the thickness direction of the heat exchange device (100). The surface perpendicular to the first direction (W1) is defined as the projection surface. The orthographic projection of the plate (101) on the projection surface is the plate projection (P101). The orthographic projection of the wall of the distribution groove (22) on the projection surface is the distribution groove projection (P0). A portion of the plate projection (P101) of at least one of the plurality of plates (101) is located within the distribution groove projection (P0). The orthographic projection of the wall of the distribution port (40) on the projection surface is the distribution port projection (P40). The distribution port projection (P40) includes a first part (P401) and a second part (P402). The plate projection (P101) includes the first part (P401), and the distribution groove projection (P0) includes the second part (P402). The inter-plate flow channel (104) includes a first inter-plate flow channel (102) and a second inter-plate flow channel (103), the first inter-plate flow channel (102) and the second inter-plate flow channel (103) are fluidly isolated, and the second inter-plate flow channel (103) includes a first sub-inter-plate flow channel (1031) and a second sub-inter-plate flow channel (1032).
3. The heat exchange device according to claim 2, wherein, The plate (101) includes a first plate (31), a second plate (32), and a third plate (33). Along the thickness direction of the heat exchange device (100), the second plate (32) is located between the first plate (31) and the third plate (33). At least a portion of the first plate (31) and at least a portion of the second plate (32) are part of the wall of the first inter-plate flow channel (1031). At least a portion of the second plate (32) and at least a portion of the third plate (33) are part of the first inter-plate flow channel (102). The third plate (33) is at least part of the wall of the second sub-plate inter-channel (1032); the orthographic projection of the first plate (31) on the projection plane is the first projection (P1), the orthographic projection of the second plate (32) on the projection plane is the second projection (P2), and the orthographic projection of the third plate (33) on the projection plane is the third projection (P3). A portion of the first projection (P1), a portion of the second projection (P2), and a portion of the third projection (P3) are all located within the distribution slot projection (P0).
4. The heat exchange device according to any one of claims 3, wherein, At least one of the first plate (31), the second plate (32), and the third plate (33) includes a flange (50) and a flat plate (51), the flange (50) being close to the distribution channel (21) relative to the flat plate (51), the flat plate (51) being at least partially perpendicular to the thickness direction of the heat exchange device (100), and the flange (50) being provided protruding from the flat plate (51); The thickness direction of the heat exchange device (100) is consistent with the axial direction of the distribution channel (21).
5. The heat exchange device according to claim 4, wherein, The flanged portion (50) includes a first flanged portion (501) and a second flanged portion (502), the flat portion (51) includes a first flat portion (511) and a second flat portion (512), the first plate (31) includes the first flanged portion (501) and the first flat portion (511), the second plate (32) includes the second flanged portion (502) and the second flat portion (512), the first flanged portion (501) protrudes from the first flat portion (511) in a direction close to the second plate (32), and the second flanged portion (502) protrudes from the second flat portion (512) in a direction close to the first plate (31); The first flat plate portion (511) and the second flat plate portion (512) are both partial walls of the first sub-plate inter-flow channel (1031).
6. The heat exchange device according to claim 5, wherein, Both the second direction (W2) and the third direction (W3) are parallel to the axial direction of the distribution channel (21). Along the second direction (W2), the first flange (501) protrudes from the first flat plate (511), and along the third direction (W3), the second flange (502) protrudes from the second flat plate (512).
7. The heat exchange device according to claim 5 or 6, wherein, Defined along the axial direction of the distribution channel (21), the first flange (501) has a first height (h1), the second flange (502) has a second height (h2), and the distance between the first flange (501) and the second flange (502) is a third height (h3); in, h3=(30%~50%)*(h3+h1+h2).
8. The heat exchange device according to any one of claims 2 to 7, wherein, The third plate (33) includes a third flange (503) and a third flat plate (513), wherein the third flat plate (513) is part of the wall of the second sub-plate inter-channel (1032); Along the thickness direction of the heat exchange device (100), the third plate (33) is further away from the first plate (31) relative to the second plate (32), the third plate (33) is disposed adjacent to the second plate (32), and the third flange (503) protrudes from the third flat plate (513) in a direction away from the second plate (32).
9. The heat exchange device according to any one of claims 1 to 8, wherein, The distributor (2) includes a distribution cylinder (23) and an orifice plate (24). The distribution cylinder (23) is part of the wall of the distribution channel (21). The orifice plate (24) is connected to the distribution cylinder (23). The orifice plate (24) has a first through hole (241). The first through hole (241) connects to the outside and the distribution channel (21). Along the first direction (W1), the center of the first through hole (241) is far away from the distribution groove (22) relative to the center of the distribution channel (21). The flow area of the first distribution port (41) accounts for 10%-20% of the flow area of the first through hole (241), and the flow area of the second distribution port (42) accounts for 10%-20% of the flow area of the first through hole (241).
10. The heat exchange device according to claim 9, wherein, The perforated plate (24) has a second through hole (242), the flow area of which is smaller than that of the first through hole (241), and along the first direction (W1), the second through hole (242) is closer to the distribution groove (22) than the first through hole (241).
11. The heat exchange device according to any one of claims 9 or 10, wherein, Along the thickness direction of the heat exchange device (100), the distribution groove (22) penetrates the distribution cylinder (23); The distributor (2) includes a bottom cylinder (25), and the distribution cylinder (23) includes a first end (231) and a second end (232). Along the thickness direction of the heat exchange device (100), the first end (231) and the second end (232) are the two ends of the distribution cylinder (23), respectively. The perforated plate (24) is fixedly connected to the first end (231), and the bottom cylinder (25) is fixedly connected to the second end (232). The bottom cylinder (25) includes an annular structure (255), and the annular structure (255) is at least partially located inside the distribution cylinder (23).
12. The heat exchange device according to any one of claims 9-11, wherein, The bottom cylinder (25) is part of the wall of the distribution channel (21), and the bottom cylinder (25) includes a first wall portion (251), which is connected to the distribution cylinder (23); The heat exchange device (100) has a first groove (253) that is recessed from the first wall portion (251) away from the orifice plate (24) along the thickness direction of the heat exchange device (100); along the first direction, the first groove (253) and the distribution groove (22) are at least partially aligned.
13. The heat exchange device according to claim 12, wherein, The heat exchange device (100) includes at least two of the distribution grooves (22) along the circumferential direction of the distribution cylinder (23), and there is a gap between the at least two distribution grooves (22).
14. The heat exchange device according to claim 12, wherein, The bottom cylinder (25) has a through hole (254) which extends through the bottom cylinder along the thickness direction of the heat exchange device (100). The distributor (2) includes a base plate (26) connected to the bottom cylinder (25). Along the thickness direction of the heat exchange device (100), the base plate (26) and the distribution cylinder (23) are located on both sides of the through hole (254). The base plate (26) is part of the wall of the distribution channel (21). The base plate (26) has a second groove (261) that is recessed away from the perforated plate (24). The base plate (26) includes an arc surface (260) located in the second groove (61). The arc surface (260) is part of the wall of the distribution channel (21).
15. The heat exchange device according to claim 14, wherein, The bottom cylinder (25) includes a second wall portion (252), the first wall portion (251) extends from the inner wall of the second wall portion (252) toward a direction close to its axis, and the through hole (254) passes through both ends of the second wall portion (252) in the axial direction.