Heat exchanger

Abstract

The invention provides a heat exchanger which is provided with a middle area and an end area, the heat exchanger comprises at least two plates, the plates are stacked in the height direction of the heat exchanger, each plate comprises a plurality of protruding structures, at least part of the protruding structures are distributed in the middle area, and the protruding structures located in the middle area are arranged in an array mode in the first direction and the second direction. The first direction intersects with the second direction, an included angle between the first direction and the second direction is defined as alpha 1, the alpha 1 faces the end area and is smaller than 90 degrees, and the flow resistance of fluid in the heat exchanger can be reduced.

Description

[0001] This application is a divisional application of a patent application with an application date of August 25, 2023, application number 202311088493.4, and invention name “A plate and a heat exchanger”. Technical Field

[0002] The present application relates to the field of heat exchange technology, and in particular to a heat exchanger. Background Art

[0003] The heat exchanger includes a plurality of plates, and heat exchange channels are formed between adjacent plates. Fluid can flow through the heat exchange channels to exchange heat with external equipment of the heat exchanger. How to reduce the flow resistance of the fluid in the heat exchanger is a technical problem that needs to be solved urgently. Summary of the invention

[0004] The purpose of the present application is to provide a heat exchanger that is conducive to reducing the flow resistance of the fluid in the heat exchanger and increasing the flow path of the fluid in the length direction of the heat exchanger.

[0005] To achieve the above objectives, this application adopts the following technical solutions:

[0006] On the one hand, an embodiment of the present invention provides a heat exchanger, which has a middle area and an end area, and the end area is located outside the middle area. The heat exchanger includes plates stacked along the height direction of the heat exchanger, and the plates include a plurality of protrusion structures. At least a part of the protrusion structures are scattered in the middle area, and the protrusion structures located in the middle area are arranged in an array along a first direction and a second direction. The first direction intersects with the second direction, and one of the angles between the first direction and the second direction is defined as α1, and α1 is toward the end area, and α1 is less than 90 degrees.

[0007] According to the heat exchanger provided by the embodiment of the present invention, a plurality of protrusion structures arranged in an array along the first direction and the second direction are provided on the plate, so as to facilitate the distribution of the fluid, and by setting the angle α1 between the first direction and the second direction toward the end area to be less than 90 degrees, the angle between the first direction and the second direction is smaller, so that the fluid has a smaller flow resistance when flowing to the end area, which facilitates increasing the flow path of the fluid.

[0008] On the other hand, an embodiment of the present invention provides a heat exchanger, which has a middle zone and an end zone, wherein the end zone is located outside the middle zone, and the heat exchanger includes a first plate, wherein the first plate includes a first substrate and a first protrusion connected to each other, wherein the first protrusion protrudes from the first substrate away from the first substrate, and the first protrusion is located in the middle zone, wherein the first protrusion has a first edge and a second edge, and an angle between the first edge and the second edge is defined as α3, wherein α3 is directed toward the end zone, and α3 is less than 90 degrees.

[0009] According to the heat exchanger provided by the embodiment of the present invention, a first protrusion is arranged on the first plate, and an angle α3 is formed between the first edge and the second edge of the first protrusion, α3 is directed toward the end area and α3 is less than 90 degrees. At this time, the angle between the first edge and the second edge is smaller, so that the fluid has a smaller flow resistance when flowing to the end area, which facilitates increasing the flow path of the fluid.

[0010] On the other hand, an embodiment of the present invention provides a heat exchanger having a middle zone and an end zone, wherein the end zone is located outside the middle zone, and the heat exchanger includes a first plate, wherein the first plate includes a first substrate and a first protrusion connected to each other, wherein the first protrusion protrudes from the first substrate toward a direction away from the first substrate, and the first protrusion is located in the middle zone, and in a first reference quadrilateral formed by connecting the center points of four adjacent first protrusions, one of the angles α4 of the first reference quadrilateral is less than 90 degrees along the direction toward the end zone.

[0011] According to the heat exchanger provided in an embodiment of the present invention, in a first reference quadrilateral formed by connecting the center points of four adjacent first protrusions, one of the angles α4 of the first reference quadrilateral is less than 90 degrees along the direction toward the end area. At this time, the angle α4 is small, so that the fluid has a smaller flow resistance when flowing toward the end area, which is convenient for increasing the flow path of the fluid. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of a partial decomposition structure of a heat exchanger provided by an embodiment of the present invention;

[0013] Figure 2 It is a front view structural schematic diagram of a heat exchanger provided by an embodiment of the present invention;

[0014] Figure 3 is a front view structural schematic diagram of one side of a first plate provided by an embodiment of the present invention;

[0015] Figure 4 is a front view structural schematic diagram of one side of a first plate provided by another embodiment of the present invention;

[0016] Figure 5 is a front view structural schematic diagram of one side of a second plate provided by an embodiment of the present invention;

[0017] Figure 6 is a front view structural schematic diagram of one side of a second plate provided by another embodiment of the present invention;

[0018] Figure 7 yes Figure 1 A schematic diagram of a partial cross-sectional structure of one side of a heat exchanger in the longitudinal direction is shown in FIG.

[0019] Figure 8 yes Figure 1 A schematic diagram of a partial cross-sectional structure of the other side of the length direction of a heat exchanger shown in FIG.

[0020] Fig. 9 yes Figure 1 A schematic diagram of a partial cross-sectional structure of a heat exchanger along the length direction is shown in FIG.

[0021] Fig.10 yes Figure 1 Another partial cross-sectional structural schematic diagram of a heat exchanger along the length direction is shown in FIG.

[0022] Fig.11 A schematic diagram of the exploded structure of the first plate and the second plate of one embodiment;

[0023] Fig.12 yes Figure 4 A schematic diagram of a three-dimensional structure of a first plate is shown in FIG.

[0024] Fig.13 Fig.11 Another exploded structural schematic diagram of the first plate and the second plate is shown in FIG.

[0025] Fig.14 yes Figure 5 A partially enlarged structural schematic diagram of a second plate is shown in FIG.

[0026] Fig.15 yes Figure 2 A schematic diagram of a partial cross-sectional structure of a heat exchanger along the MM direction is shown in FIG.

[0027] Fig.16 yes Figure 2 A schematic diagram of a partial cross-sectional structure of a heat exchanger shown in another position;

[0028] Fig.17 yes Figure 4 A schematic diagram of a partial structure of a first plate shown in FIG.

[0029] Fig.18is a schematic diagram of a partial arrangement structure of a first convex portion provided by an embodiment of the present invention;

[0030] Fig.19 is a partial schematic diagram of a first convex portion provided by an embodiment of the present invention;

[0031] Fig. 20 is a schematic diagram of a partial arrangement structure of a second convex portion provided by an embodiment of the present invention;

[0032] Fig.21 It is a partial schematic diagram of a second protrusion provided by an embodiment of the present invention.

[0033] Instruction manual drawings:

[0034] 100, heat exchanger; 105, middle zone; AE3, first sub-zone; AE4, second sub-zone; 106, end zone; AE1, first zone; AE2, second zone; BS, bypass channel; BS3, first bypass slot; BS4, second bypass slot; S4, first channel; S5, second channel; S7, first bypass hole; S8, second bypass hole; 5, plate; 3, body; 4, flange; S0, inter-plate channel; S01, sub-channel; S1, first inter-plate channel; S2, second inter-plate channel; S3, circulation gap; S6, corner hole channel; 101, first hole; 102, second hole; 103, third hole; 104, fourth hole;

[0035] 1. first plate; TU1. convex structure; TU2. convex rib; 14. first rib portion; 11. first convex portion; 35. first base plate; BS1. first bypass structure; LT1. first flow portion;

[0036] 2, second plate; 22, second rib; 201, second convex portion; 36, second base plate; BS2, second bypass channel; LT2, second flow portion;

[0037] DW, low segment; B1, first edge; B2, second edge; B3, third edge, B4, fourth edge; D1, first reference quadrilateral; D2, second reference quadrilateral; D3, third reference quadrilateral; D4, fourth reference quadrilateral. DETAILED DESCRIPTION

[0038] The present application is further described below with reference to the accompanying drawings and specific embodiments:

[0039] like Figures 1 to 21As shown, an embodiment of the present invention provides a heat exchanger 100, which has a middle area 105 and an end area 106. Along the length direction of the heat exchanger 100, the end areas 106 are located on both sides of the middle area 105. The heat exchanger 100 includes at least two plates 5 stacked along the height direction of the heat exchanger 100. The heat exchanger 100 has at least one inter-plate channel S0. The same inter-plate channels S0 can flow the same fluid. The inter-plate channels S0 are located between adjacent plates 5. The same inter-plate channels S0 include at least two sub-channels S01 arranged along the height direction of the heat exchanger 100. In at least one inter-plate channel S0, at least one sub-channel S01 has a bypass flow channel BS, and the bypass flow channel BS is located in the end area 106. Through the above-mentioned arrangement, the fluid can be better distributed under the action of the bypass channel BS when flowing through at least one sub-channel S01. For example, the fluid can flow to the end area 106 or close to the end area 106 under the action of the bypass channel BS, thereby increasing the flow area of ​​the fluid in the heat exchanger 100, increasing the heat exchange area of ​​the heat exchanger 100, and improving the utilization rate of the heat exchanger 100.

[0040] Specifically, in the embodiment of the present invention, the heat exchanger 100 includes a plurality of plates 5, and the plurality of plates 5 are stacked and arranged along the height direction of the heat exchanger. In this embodiment, the heat exchanger 100 has a first inter-plate channel S1 and a second inter-plate channel S2, and the first inter-plate channel S1 and the second inter-plate channel S2 are alternately arranged along the height direction of the heat exchanger 100. The first inter-plate channel S1 and the second inter-plate channel S2 each include a plurality of sub-channels S01, and each sub-channel S01 is located between two adjacent plates 5. Specifically, there is a first inter-plate channel S1 between the plate 5 and the plate 5 on the adjacent side, that is, there is a sub-channel S01 between the plate 5 and the plate 5 on the adjacent side, and there is a second inter-plate channel S2 between the plate 5 and the plate 5 on the adjacent other side, that is, there is a sub-channel S01 between the plate 5 and the plate 5 on the adjacent other side, the first inter-plate channel S1 and the second inter-plate channel S2 are alternately arranged, and the first inter-plate channel S1 and the second inter-plate channel S2 are fluid-isolated, that is, the first inter-plate channel S1 is for the flow of the first fluid, and the second inter-plate channel S2 is for the flow of the second fluid, and the first fluid and the second fluid perform heat exchange. The first inter-plate channel S1 and the second inter-plate channel S2 are alternately arranged, so that the area for heat exchange between the first fluid and the second fluid is large, and the heat exchange effect of the heat exchanger 100 is relatively good.

[0041] In other embodiments, the first inter-plate channel S1 may be provided between the plate 5 and the plate 5 on the adjacent side, and the first inter-plate channel S1 may be provided between the plate 5 and the plate 5 on the adjacent other side, and the second inter-plate channel S2 may be provided between the next layer of plates 5, that is, two layers of first inter-plate channels S1 may be provided continuously, and then one layer of second inter-plate channels S2 may be provided, so that heat exchange between the first fluid and the second fluid may be achieved. In other embodiments, two or more layers of second inter-plate channels S2 may be provided continuously, and then several layers of first inter-plate channels S1 may be provided.

[0042] In this embodiment, the second fluid refers to the coolant, which is mainly a coolant, such as cooling water or cooling oil. The first fluid in this application refers to the refrigerant, which is mainly a refrigerant, such as R134a, R1234yf, etc. For the convenience of description, the upper and lower parts of the definition direction are as shown in the attached drawings of the specification. Figure 1 The upper and lower directions of the heat exchanger 100 are defined as the upper and lower directions of the heat exchanger 100, and the upper and lower directions only represent relative positions; the height direction, length direction, and width direction of the heat exchanger 100 are defined as the height direction, length direction, and width direction of the heat exchanger 100 in the attached drawings of the specification. Figure 1 In the height direction, length direction, and width direction of the heat exchanger 100, in this application, the height direction of the heat exchanger 100 is consistent with the stacking direction of the plate 5; in this application, the length direction of the plate 5 is consistent with the length direction of the heat exchanger 100, and the width direction of the plate 5 is consistent with the width direction of the heat exchanger 100. In this application, the directions of the adjacent sides are consistent, the directions of the adjacent sides are consistent, the adjacent side refers to the adjacent side facing upward, and the adjacent other side refers to the adjacent side facing downward; or, the adjacent side refers to the adjacent side facing downward, and the adjacent other side refers to the adjacent side facing upward.

[0043] In some embodiments, the plate 5 includes a substrate and a plurality of raised structures TU1, wherein the raised structures TU1 are point wave structures of the plate 5, and the plate 5 may be a stamped part. On one side of the plate 5 in the thickness direction, the raised structures TU1 are raised relative to the substrate, and on the other side of the plate 5 in the thickness direction, the surface of the raised structures TU1 may overlap or be recessed with the surface of the substrate. The middle area 105 of the heat exchanger 100 is the main heat exchange area. In order to allow the fluid to be better filled into the middle area 105, at least a portion of the raised structures TU1 are scattered in the middle area 105. In the same inter-plate channel S0, all the sub-channels S01 have a bypass flow channel BS, and the flow cross-sectional area of ​​the inter-plate channel S0 located in the middle area 105 is smaller than the flow cross-sectional area of ​​the bypass flow channel BS. Through the above arrangement, since the bypass flow channel BS has a small flow cross-sectional area and the bypass flow channel BS is located in the end area 106, according to the flow characteristics of the fluid, the fluid can better pass through the middle area 105 to the bypass flow channel BS, thereby increasing the flow area of ​​the fluid; further, through the arrangement, in the same inter-plate channel S0, all the sub-channels S01 have the bypass flow channel BS, so that the fluid in each layer of the sub-channel S01 can have a larger flow area.

[0044] In this article, the heat exchanger 100 also has a corner hole channel S6, which is located in the end area 106. To facilitate the forming and welding of the plate 5, that is, between the edge of the corner hole channel S6 and the raised structure TU1 along the length direction of the heat exchanger 100, the length of the end area 106 is greater than the length of the area where the corner hole channel S6 is located. Optionally, along the length direction of the heat exchanger 100, the end area 106 can be an area defined by the edge of the length direction of the main body of the heat exchanger 100 to the edge of the raised structure TU1 adjacent to the corner hole channel S6.

[0045] Specifically, Figures 11 to 13 As shown, in some embodiments, the heat exchanger 100 has a corner hole channel S6, which is connected to the same type of inter-plate channel S0. In the same type of inter-plate channel S0, the corner hole channel S6 is located in one end area 106, and the bypass flow channel BS is located in the other end area 106. For a working fluid, such as cooling water or refrigerant, the fluid enters or leaves the heat exchanger 100 from the corner hole channel. Through the above arrangement, when the fluid flows into the inter-plate channel S0 from the corner hole channel S6 of one end area 106, since the bypass flow channel BS of the other end area 106 has a larger fluid cross-sectional area and a smaller flow resistance, when the fluid passes through the middle area 105, the fluid pressure decreases, and the bypass flow channel BS easily "attracts" the fluid to the other end area 106, which is convenient for increasing the flow path of the fluid.

[0046] Further, in some embodiments, in order to increase the welding area and welding strength of the plate 5, the plate 5 includes a main body 3 and a flange 4, the flange 4 is the outer peripheral side surrounding the main body 3, a part of the main body 3 is located in the middle area 105, and another part of the main body 3 is located in the end area 106. In order to increase the flow path of the fluid along the width direction of the heat exchanger 100, at least part of the bypass flow channel BS extends along the width direction of the heat exchanger 100, and optionally, the bypass flow channel BS can extend the entire width direction of the heat exchanger 100 or the bypass flow channel BS can extend more than 70% of the width direction of the heat exchanger 100.

[0047] In a specific implementation, the bypass flow channel BS includes a first flow channel S4, which extends along the width direction of the heat exchanger 100, and the extension distance of the first flow channel S4 is less than or equal to the width of the main body 3. And / or the bypass flow channel BS includes a second flow channel S5, which extends along the length direction of the heat exchanger 100, and at least a part of the second flow channel S5 is located in the end area 106.

[0048] like Figure 4 As shown, in the embodiment of the present invention, the bypass channel BS includes a first channel S4 and a second channel S5, the first channel S4 and the second channel S5 are connected, the second channel S5 is located in the end area 106 as a whole, the second channel S5 runs through one of the end areas 106, and the second channel S5 is adjacent to the convex structure TU1 located in the middle area 105, and the second channel S5 is adjacent to the convex structure TU1. Through the above arrangement, the fluid located in the edge direction of the heat exchanger 100 can flow to the middle area 105, and by setting the bypass channel BS structure, the structural strength of the plate 5 can be increased.

[0049] like Figures 1 to 4 As shown, between two adjacent plates 5 forming the bypass flow channel BS, in the area corresponding to the bypass flow channel BS, one of the plates 5 has a protruding structure, and on the other side away from the protruding structure, the plate 5 has a bypass groove, and the other plate can be a planar structure, and the two plates can define the bypass flow channel BS by welding. Furthermore, by providing a protruding structure on the plate 5, it is convenient to weld the plate with another plate, increase the welding area, and thus improve the welding strength.

[0050] Specifically, in the area corresponding to the bypass channel BS, the second layer of plate 5 has a protruding structure toward the third layer of plate 5, and the second layer of plate 5 has a groove toward the first layer of plate 5, and a bypass channel BS is formed between the first layer of plate 5 and the second layer of plate 5, and the protruding structure of the second layer of plate 5 is welded to the third layer of plate 5, so as to increase the welding strength between the second layer of plate 5 and the third layer of plate 5.

[0051] In some embodiments, the inter-plate channel S0 includes a first inter-plate channel S1 and a second inter-plate channel S2, the first inter-plate channel S1 and the second inter-plate channel S2 are fluid-isolated, cooling water and other fluids can be connected in the first inter-plate channel S1, and refrigerant and other fluids can flow in the second inter-plate channel S2. Correspondingly, the corner hole channel S6 includes a first channel 101, a second channel 102, a third channel 103 and a fourth channel 104, the first channel 101 and the second channel 102 are both connected to the first inter-plate channel S1, and the first channel 101 and the second channel 102 are both located in one end area 106, the third channel 103 and the fourth channel 104 are both connected to the second inter-plate channel S2, and the third channel 103 and the fourth channel 104 are both located in the other end area 106. Through the above arrangement, it is convenient to reasonably arrange the inlet and outlet channels of the two fluids.

[0052] Correspondingly, the subchannel S01 of the first inter-plate channel S1 has a bypass channel BS, and the subchannel S01 of the second inter-plate channel S2 has a bypass channel BS. The bypass channel BS of the first inter-plate channel S1 is defined as a first bypass channel S7, and the bypass channel BS of the second inter-plate channel S2 is defined as a second bypass channel S8. The first bypass channel S7 is located in one end area 106 in the width direction of the heat exchanger 100, and the second bypass channel S8 is located in the other end area 106 in the width direction of the heat exchanger 100. Through the above arrangement, it is convenient to make different types of inter-plate channels S0 have a larger fluid flow area.

[0053] In specific implementation, in the embodiment of the present invention, the end area 106 includes a first area AE1 and a second area AE2, the middle area 105 is located between the first area AE1 and the second area AE2, the first channel 101 and the second channel 102 are both located in the first area AE1, and the third channel 103 and the fourth channel 104 are both located in the second area AE2. For the first inter-plate channel S1, the bypass flow channel BS is located in the second area AE2, and for the second inter-plate channel S2, the bypass flow channel BS is located in the first area AE1. Through the above arrangement, when each working fluid enters the inter-plate channel S0 from the corner hole channel S6, the fluid passes through the middle area 105, and then flows to the end area 106 farther away from the middle area 105 under the action of the bypass flow channel BS. Moreover, since the bypass flow channel BS extends along the width direction of the heat exchanger, the fluid can be better "attracted" in the width direction of the heat exchanger 100, thereby improving the situation in which the fluid flowing through the edge of the width direction of the heat exchanger 100 does not flow or rarely flows to the end area 106, thereby increasing the heat exchange area of ​​the heat exchanger 100.

[0054] Since the corner hole channels S6 for the same fluid are located in the same end area 106, in order to better distribute the fluid, in some embodiments, the plate 5 includes a convex rib TU2, which is located in the middle area of ​​the heat exchanger 100 along the width direction of the heat exchanger 100, and defines a part of the wall of the inter-plate channel S0. The depth of the convex rib TU2 is the same as the depth of the bypass channel BS. The convex rib TU2 extends from the edge of one end area 106 in the length direction of the plate 5 to the other end area 106, or the convex rib TU2 extends from the edge of the wall defining the bypass channel BS to the other end area 106. The projection distance L1 of the convex rib TU2 along the length direction of the plate 5 is less than the length of the main body 3 of the plate 5.

[0055] In a specific implementation, the extension direction of the convex rib TU2 may be the length direction of the heat exchanger 100, that is, the convex rib TU2 in the figure extends from the left side to the right side or from the right side to the left side, and the convex rib TU2 may extend along a straight line, a curve, or a broken line, etc., which is not limited in the present invention. The convex rib TU2 may also be a symmetrical structure with respect to the center line of the width direction of the heat exchanger 100, or the convex rib TU2 may be arranged obliquely with respect to the center line of the width direction of the heat exchanger 100.

[0056] In some embodiments, in the same type of inter-plate channel S0, there is a flow gap between the convex rib TU2 and the end area 106 away from the bypass flow channel BS; the middle area 105 includes a first sub-area AE3 and a second sub-area AE4, and the first sub-area AE3 and the second sub-area AE4 are arranged along the width direction of the heat exchanger 100. Along the width direction of the heat exchanger 100, part of the convex rib TU2 is located between the first sub-area AE3 and the second sub-area AE4, and the inter-plate channel S0 located in the first sub-area AE3 and the inter-plate channel S0 located in the second sub-area AE4 are connected through the flow gap S3 and the bypass flow channel BS.

[0057] Combination Figures 12 to 21As shown, in the inter-plate channel S0, the rib TU2 is located in one of the plates 5, and the rib TU2 is welded and sealed with another adjacent plate 5, so that within the length area where the rib TU2 extends, the fluids in the areas on both sides of the width direction of the rib TU2 do not interact, that is, within the length area where the rib TU2 extends, the fluids in the first sub-area AE3 and the second sub-area AE4 do not interact, which is convenient for distributing the fluid through the rib TU2. Compared with not setting the rib TU2, the fluid is easy to flow into the heat exchanger 100 from the inlet and directly flow out from the outlet through fewer paths, which is not conducive to the flow to the plate surface area of ​​the entire heat exchanger 100. Further, in the embodiment of the present invention, by reasonably setting the length of the rib TU2, the heat exchanger has a flow gap S3, which is convenient for realizing the fluid interaction between the first sub-area AE3 and the second sub-area AE4. In the embodiment of the present invention, one plate 5 is provided with one rib TU2, and in other embodiments, one plate can be provided with at least two ribs TU2, and the connection ends of adjacent ribs TU2 and the base plate are located on different sides of the length direction of the plate 5.

[0058] Optionally, the extension length of the rib TU2 can be greater than or equal to 1 / 3 or 1 / 4 of the length of the main body of the heat exchanger 100, and the present invention does not limit this. Specifically, when the flow cross-sectional area of ​​the bypass flow channel BS is large, the "attraction" effect on the fluid is strong, and the extension length of the rib TU2 can be set to be smaller. When the flow cross-sectional area of ​​the bypass flow channel BS is small, the extension length of the rib TU2 can be set to be longer to prevent the flow path of the fluid in the length direction of the heat exchanger from being smaller. By setting the rib TU2, when the fluid flows in the inter-plate channel S0, the fluid path is a U-shaped path.

[0059] Due to the setting of the convex rib TU2 structure, such as Figure 4 As shown, in some embodiments, the rib TU2 extends from the edge of one end region 106 in the length direction of the plate 5 to the other end region 106, and the bypass flow channel BS includes a first flow channel S4, and the first flow channel S4 includes at least two parts, along the width direction of the heat exchanger 100, at least one part is located on one side of the rib TU2, and at least one part is located on the other side of the rib TU2. Through the above arrangement, it is convenient to increase the structural strength of the plate 5. At this time, the extension distance of the first flow channel S4 along the width direction of the heat exchanger 100 is the sum of the extension distances of at least two parts.

[0060] Or Figure 3 As shown, in other embodiments, the bypass flow channel BS extends the entire width of the heat exchanger 100 , and the rib TU2 extends from the edge of the wall defining the bypass flow channel BS to the other end region 106 .

[0061] The structure of the plate 5 forming the first inter-plate channel S1 and the second inter-plate channel S2 is introduced below. In some embodiments, the plate 5 includes the first plate 1 and the second plate 2, based on which, the convex rib TU2 includes the first rib portion 14 and the second rib portion 22, the substrate of the plate 5 includes the first substrate 35 and the second substrate 36, the bypass channel BS includes the first bypass channel BS1 and the second bypass channel BS2, and the convex structure TU1 includes the first convex portion 11 and the second convex portion 201. Along the height direction of the heat exchanger 100, the first plate 1 and the second plate 2 are alternately stacked; the first plate 1 includes a first rib 14, a first substrate 35, a first convex portion 11, a first bypass structure BS1 and a first flow portion LT1, the first rib 14 extends along the length direction of the first plate 1, the first rib 14 protrudes toward the second plate 2 relative to the first substrate 35, the protruding direction of the first rib 14, the protruding direction of the first bypass structure BS1 and the first convex portion 11 are consistent, along the protruding direction away from the first rib 14, the first bypass structure BS1 has a first bypass groove BS3, the wall of the first bypass groove BS3 defines a first bypass channel S7, one end of the first rib 14 is connected to one end of the first plate 1 or to the first bypass structure BS1, the first flow portion LT1 is located between the other end of the first rib 14 and the other end of the first plate 1, and along the height direction of the heat exchanger 100, there is a gap between the first flow portion LT1 and the second plate 2.

[0062] And / or, in some embodiments, the second plate 2 includes a second rib 22, a second substrate 36, a second protrusion 201, a second bypass structure BS2 and a second flow portion LT2, the second rib 22 extends along the length direction of the second plate 2, the second rib 22 protrudes toward the first plate 1 relative to the second substrate 36, the second bypass structure BS2 has a second bypass groove BS4, the wall of the second bypass groove BS4 defines a second bypass channel S8, the protruding direction of the second rib 22, the protruding direction of the second bypass structure BS2 and the second protrusion 201 are consistent, one end of the second rib 22 and one end of the second plate 2 are connected to the second bypass structure BS2, the second flow portion LT2 is located between the other end of the second rib 22 and the other end of the second plate 2, and along the height direction of the heat exchanger 100, there is a gap between the second flow portion LT2 and the first plate 1.

[0063] In the embodiment of the present invention, the first plate 1 includes a first rib 14, and the second plate 2 includes a second rib 22. When projected along the height direction of the heat exchanger 100, the first rib 14 and the second rib 22 are staggered. Through the above arrangement, when the first plate 1 and the second plate 2 are alternately stacked, the first rib 14 and the second rib 22 can both play a guiding role for the fluid. In this article, the first plate 1 and the second plate 2 are alternately stacked, which can be a first plate 1 and a second plate 2 alternately stacked, or at least two first plates 1 and a second plate 2 are alternately stacked, or at least two first plates 1 and at least two second plates 2 are alternately stacked, or a first plate 1 and at least two second plates 2 are alternately stacked.

[0064] In summary, according to the heat exchanger 100 provided by the embodiment of the present invention, at least one sub-channel S01 has a bypass flow channel BS, and the bypass flow channel BS is located in the end area 106, so that when the fluid flows through at least one sub-channel S01, the fluid can be better distributed under the action of the bypass channel BS, thereby increasing the flow area of ​​the fluid in the heat exchanger 100 and increasing the heat exchange area of ​​the heat exchanger 100.

[0065] Furthermore, combined with Figures 17 to 21 As shown, in an embodiment of the present invention, the heat exchanger 100 has an intermediate area 105, and the heat exchanger 100 includes at least two plates 5, and the plates 5 are stacked along the height direction of the heat exchanger 100. The plates 5 include a plurality of protruding structures TU1, and at least a part of the protruding structures TU1 are scattered in the intermediate area 105. The protruding structures TU1 located in the intermediate area 105 are arranged in an array along a first direction E and a second direction F, and the first direction E intersects with the second direction F. Since the path of the heat exchanger 100 in the length direction is relatively large, in order to reduce the flow resistance of the fluid, one of the angles between the first direction E and the second direction F is defined as angle α, α is toward the length direction of the heat exchanger 100, and α is less than 90 degrees. At this time, α is an acute angle structure. By providing a plurality of raised structures TU1 arranged in an array along the first direction E and the second direction F on the plate 5, it is convenient to distribute the fluid, and by setting the angle α between the first direction E and the second direction F toward the length direction of the heat exchanger 100 to be less than 90 degrees, at this time, along the length direction of the heat exchanger 100, the angle between the first direction E and the second direction F is small, so that the fluid has a smaller flow resistance when flowing along the length direction of the heat exchanger 100, which facilitates increasing the flow path of the fluid in the length direction of the heat exchanger 100.

[0066] To further reduce the flow resistance during flow in the length direction of the heat exchanger 100, in some embodiments, α is greater than or equal to 15 degrees and less than or equal to 75 degrees.

[0067] In order to increase the flow area of ​​the fluid in the heat exchanger 100, in some embodiments, the heat exchanger 100 further has an end area 106, along the length direction of the heat exchanger 100, one end area 106 is located on one side of the middle area 105, and the other end area 106 is located on the other side of the middle area 105; a part of the convex structures TU1 are scattered in at least one end area 106, and the convex structures TU1 located in the end area 106 are arranged in an array along the first direction E and the second direction F. By providing the convex structures TU1 in the end area 106, it is convenient to guide and distribute the fluid, so as to increase the flow area of ​​the fluid in the plate 5.

[0068] In the embodiment of the present invention, the end area 106 includes a first area AE1 and a second area AE2, the middle area 105 is located between the first area AE1 and the second area AE2, a part of the protruding structures TU1 are dispersed in the first area AE1, and a part of the protruding structures TU1 are dispersed in the second area AE2, the structural graphics of the protruding structures TU1 located in the first area AE1 and the second area AE2 are the same or similar, and the protruding structure TU1 located in the end area 106 is the same or similar to the protruding structure TU1 located in the middle area 105.

[0069] In some embodiments, another angle between the first direction E and the second direction F is defined as α2, α2 is oriented toward the width direction of the heat exchanger 100, and α2 is greater than 90 degrees. At this time, the angle α2 is an obtuse angle, for example, α2 can be greater than or equal to 105 degrees and less than or equal to 165 degrees. Through the above arrangement, it is convenient to distribute the fluid through the obtuse angle structure, and it is convenient to guide the fluid to flow to the position of the flange 4.

[0070] In the embodiment of the present invention, if the angle of α is set too small, the angle of α2 will be increased, and the area where the fluid is introduced into the flange 4 will be smaller. If the angle of α2 is set too small, the angle of α1 will be increased, and the flow resistance along the length direction of the heat exchanger 100 will be increased. Optionally, the angle of α can be greater than or equal to 15 degrees and less than or equal to 75 degrees, and α2 can be greater than or equal to 105 degrees and less than or equal to 165 degrees. Through the above settings, it is convenient to improve the fluid distribution at the bend of the rib TU2 and guide the fluid to flow to the flange 4.

[0071] Based on this, the convex rib TU2 may include a fold line structure with arc transitions between adjacent fold lines. Among the adjacent fold lines, the straight line where one fold line is located is parallel to the first direction E, and the straight line where the other fold line is located is parallel to the second direction F. At this time, a first angle may be formed between the adjacent fold lines, and the first angle is toward the width direction of the heat exchanger. The first angle may be an obtuse angle.

[0072] In some embodiments, the plate 5 includes a first plate 1, and the first plate 1 includes a first substrate 35 and a first convex portion 11 connected to each other. In this article, the first substrate 35 and the first convex portion 11 are an integral stamping part, and the main body of the first substrate 35 is a flat plate structure. On one side of the thickness direction of the first plate 1, the first convex portion 11 protrudes from the first substrate 35 to the direction away from the first substrate 35, and on the other side of the thickness direction of the first plate 1, a concave portion is formed corresponding to the position where the first convex portion 11 is located. The first convex portion 11 has a first edge B1 and a second edge B2. Along the length direction of the heat exchanger 100, the angle α3 between the first edge B1 and the second edge B2 is less than 90 degrees. At this time, the first convex portion 11 can be a rhombus-like structure. And / or in the first reference quadrilateral D1 formed by connecting the center points of four adjacent first convex portions 11, along the length direction of the heat exchanger 100, one of the angles α4 of the first reference quadrilateral D1 is less than 90 degrees. In this article, the thickness direction of the plate 5 is parallel to or coincides with the height direction of the heat exchanger 100. In the embodiment of the present invention, the angles α4 and α3 are equal.

[0073] Further, in some embodiments, the first convex portion 11 has a third edge B3 and a fourth edge B4, and along the length direction toward the heat exchanger 100, the angle α31 between the third edge B3 and the fourth edge B4 is less than 90 degrees, and / or in the first reference quadrilateral D1 formed by the center point connection line of four adjacent first convex portions 11, along the length direction toward the heat exchanger 100, another angle α41 of the first reference quadrilateral D1 is less than 90 degrees. In the embodiment of the present invention, the angles of α41 and α31 can be equal, the angles of α41 and α4 can be equal, and the angles of α31 and α3 can be equal. The extension direction of the first edge B1 and the extension direction of the third edge B3 can be parallel or substantially parallel to the first direction E, and the extension direction of the second edge B2 and the extension direction of the fourth edge B4 can be parallel or substantially parallel to the second direction F. The two directions being substantially parallel means that the acute angle defined by the two directions is less than or equal to 10 degrees, or is defined according to the needs of the user.

[0074] Along the width direction toward the heat exchanger 100, the angle α5 between the first edge B1 and the fourth edge B4 is greater than 90 degrees, and / or in the first reference quadrilateral D1 formed by connecting the center points of four adjacent first protrusions 11, along the width direction toward the heat exchanger 100, another angle α6 of the first reference quadrilateral D1 is greater than 90 degrees.

[0075] In some embodiments, the heat exchanger 100 further has an end area 106, and a portion of the protruding structures TU1 are distributed in at least one end area 106. In the first plate 1, at least a portion of the protruding structures TU1 located in the end area 106 are the same or similar patterns as the protruding structures TU1 located in the middle area 105.

[0076] Alternatively, for the raised structure TU1 located in the end area 106, in the second reference quadrilateral D2 formed by connecting the center points of four adjacent first protrusions 11, along the length direction of the heat exchanger 100, the angle α7 of the second reference quadrilateral D2 is less than 90 degrees, and along the width direction of the heat exchanger 100, the angle α8 of the second reference quadrilateral D2 is greater than 90 degrees.

[0077] In some embodiments, the plate 5 further includes a second plate 2, the first plate 1 and the second plate 2 are alternately stacked along the height direction of the heat exchanger 100, the heat exchange region has an inter-plate channel S0, and the inter-plate channel S0 is located between the first plate 1 and the second plate 2. The second plate 2 includes a second base plate 36 and a second protrusion 201 connected to each other, the second protrusion 201 protrudes from the second base plate 36 away from the second base plate 36, and in the second reference quadrilateral D2 formed by connecting the center points of four adjacent second protrusions 201, along the length direction of the heat exchanger 100, the angle α9 of the third reference quadrilateral D3 is less than 90 degrees, and along the width direction of the heat exchanger 100, the angle α10 of the third reference quadrilateral D3 is greater than 90 degrees.

[0078] Furthermore, in some embodiments, Fig.21 As shown, the second plate 2 further includes a low section DW, and on the same side of the thickness direction of the second plate 2, the low section DW is recessed relative to the second convex portion 201, and the low section DW is flush with the second substrate 36 or the low section DW is recessed from the second substrate 36 in a direction away from the second convex portion 201. The low sections DW are arranged in an array along the first direction E and the second direction F, and along the length direction and the width direction of the second plate 2, the low sections DW and the second convex portion 201 are arranged alternately; in the fourth reference quadrilateral D4 formed by the center point connection line of four adjacent low sections DW, along the length direction of the heat exchanger 100, the included angle α11 of the fourth reference quadrilateral D4 is less than 90 degrees, and along the width direction of the heat exchanger 100, the included angle α12 of the fourth reference quadrilateral D4 is greater than 90 degrees.

[0079] In some embodiments, the heat exchanger 100 further has an end area 106, and a partial number of the protruding structures TU1 are distributed in at least one end area 106. In the second plate 2, the protruding structure TU1 located in the end area 106 and the protruding structure TU1 located in the middle area 105 are the same or similar patterns; or the protruding structure TU1 located in the end area 106 is a diamond-like structure.

[0080] For example, the raised structure TU1 of the first plate 1 is defined as the first protrusion 11, and the raised structure TU2 of the second plate 2 is defined as the second protrusion 201. A part of the first protrusions 11 may have the same or similar structure as the second protrusions 201, and a part of the second protrusions 201 may have a similar structure to the first protrusions 11.

[0081] In summary, according to the heat exchanger provided by the embodiment of the present invention, a plurality of protrusion structures TU1 arranged in an array along the first direction E and the second direction F are provided on the plate 5, so as to facilitate the distribution of the fluid, and by setting the angle α between the first direction X and the second direction Y toward the length direction of the heat exchanger to be less than 90 degrees, at this time, along the length direction of the heat exchanger, the angle between the first direction and the second direction is small, so that the fluid has a smaller flow resistance when flowing along the length direction of the heat exchanger, which facilitates increasing the flow path of the fluid in the length direction of the heat exchanger.

[0082] It should be noted that the above embodiments are only used to illustrate the present application and are not intended to limit the technical solutions described in the present application. Although the present application has been described in detail in this specification with reference to the above embodiments, a person of ordinary skill in the art should understand that a person of ordinary skill in the art can still modify or make equivalent substitutions to the application, and all technical solutions and improvements thereof that do not depart from the spirit and scope of the present application should be included in the scope of the claims of the present application.

Claims

1. A heat exchanger (100), characterized in that: The heat exchanger (100) has a middle area (105) and an end area (106), wherein the end area (106) is located outside the middle area (105), and the heat exchanger (100) comprises plates (5) stacked along the height direction of the heat exchanger (100), wherein the plates (5) comprise a plurality of protruding structures (TU1), wherein at least a portion of the protruding structures (TU1) are located in the middle area (105), wherein the protruding structures (TU1) located in the middle area (105) are arranged in an array along a first direction (E), and wherein the protruding structures (TU1) located in the middle area (105) are arranged in an array along a second direction (F), wherein the first direction (E) intersects with the second direction (F), and wherein one of the angles between the first direction (E) and the second direction (F) is defined as α1, wherein α1 is directed toward the end area (106), and α1 is less than 90 degrees.

2. The heat exchanger (100) according to claim 1, characterized in that: α1 is greater than or equal to 15 degrees and less than or equal to 75 degrees.

3. The heat exchanger (100) according to claim 1 or 2, characterized in that: Along the length direction of the heat exchanger (100), one of the end regions (106) is located on one side of the middle region (105), and the other end region (106) is located on the other side of the middle region (105); A portion of the protruding structures (TU1) are dispersed in at least one of the end regions (106), and the protruding structures (TU1) located in the end region (106) are arranged in an array along the first direction (E) and the second direction (F).

4. The heat exchanger (100) according to claim 1, characterized in that: Another angle between the first direction (E) and the second direction (F) is defined as α2, wherein α2 is directed toward the width direction of the heat exchanger (100), and α2 is greater than 90 degrees.

5. The heat exchanger (100) according to claim 4, characterized in that: The plate (5) comprises a first plate (1), the first plate (1) comprising a first substrate (35) and a first protrusion (11) connected to each other, the first protrusion (11) protruding from the first substrate (35) in a direction away from the first substrate (35), the first protrusion (11) having a first edge (B1) and a second edge (B2), along the length direction of the heat exchanger (100), an angle α3 between the first edge (B1) and the second edge (B2) is less than 90 degrees, and / or in a first reference quadrilateral (D1) formed by connecting the center points of four adjacent first protrusions (11), along the length direction of the heat exchanger (100), one of the angles α4 of the first reference quadrilateral (D1) is less than 90 degrees.

6. The heat exchanger (100) according to claim 5, characterized in that: The first convex portion (11) has a third edge (B3) and a fourth edge (B4); along the length direction of the heat exchanger (100), an angle α31 between the third edge and the fourth edge is less than 90 degrees; and / or in a first reference quadrilateral (D1) formed by connecting the center points of four adjacent first convex portions (11), along the length direction of the heat exchanger (100), another angle α41 of the first reference quadrilateral (D1) is less than 90 degrees; Along the width direction toward the heat exchanger (100), the angle α5 between the first edge (B1) and the fourth edge (B4) is greater than 90 degrees, and / or in a first reference quadrilateral (D1) formed by connecting the center points of four adjacent first protrusions (11), along the width direction toward the heat exchanger (100), another angle α6 of the first reference quadrilateral (D1) is greater than 90 degrees.

7. The heat exchanger (100) according to claim 5, characterized in that: A portion of the protruding structures (TU1) are distributed in at least one of the end regions (106); in the first plate (1), at least a portion of the protruding structures (TU1) located in the end region (106) and the protruding structures (TU1) located in the middle region (105) are of the same or similar pattern; Alternatively, for the raised structure (TU1) located in the end area (106), in a second reference quadrilateral (D2) formed by connecting the center points of four adjacent first protrusions (11), along the length direction of the heat exchanger (100), an angle α7 of the second reference quadrilateral (D2) is less than 90 degrees, and along the width direction of the heat exchanger (100), an angle α8 of the second reference quadrilateral (D2) is greater than 90 degrees.

8. The heat exchanger (100) according to claim 5, characterized in that: The plate (5) further comprises a second plate (2), the first plate (1) and the second plate (2) being alternately stacked along the height direction of the heat exchanger (100), the heat exchanger (100) comprising an inter-plate channel (S0), the inter-plate channel (S0) being located between the first plate (1) and the second plate (2), the second plate (2) comprising a second base plate (36) and a second convex portion (201) connected to each other, the second convex portion (201) protruding from the second base plate (36) in a direction away from the second base plate (36), in a second reference quadrilateral (D2) formed by connecting the center points of four adjacent second convex portions (201), along the length direction of the heat exchanger (100), the included angle α9 of the third reference quadrilateral (D3) is less than 90 degrees, and along the width direction of the heat exchanger (100), the included angle α10 of the third reference quadrilateral (D3) is greater than 90 degrees; The second plate (2) further comprises a low section (DW), the low section (DW) being recessed relative to the second convex portion (201), the low section (DW) being arranged in an array along the first direction (E) and the second direction (F), the low section (DW) and the second convex portion (201) being arranged alternately along the length direction and the width direction of the second plate (2), and in a fourth reference quadrilateral (D4) formed by connecting the center points of four adjacent low sections (DW), along the length direction of the heat exchanger (100), an angle α11 of the fourth reference quadrilateral (D4) is less than 90 degrees, and along the width direction of the heat exchanger (100), an angle α12 of the fourth reference quadrilateral (D4) is greater than 90 degrees; The heat exchanger (100) further comprises an end zone (106), a part of the protruding structures (TU1) being distributed in at least one of the end zones (106), and in the second plate (2), the protruding structures (TU1) located in the end zone (106) and the protruding structures (TU1) located in the middle zone (105) are of the same or similar shapes; or the protruding structures (TU1) located in the end zone (106) are of a rhombus-like structure.

9. A heat exchanger (100), characterized in that: The heat exchanger (100) has a middle area (105) and an end area (106), wherein the end area (106) is located outside the middle area (105). The heat exchanger (100) comprises a first plate (1), wherein the first plate (1) comprises a first substrate (35) and a first protrusion (11) which are connected to each other, wherein the first protrusion (11) protrudes from the first substrate (35) in a direction away from the first substrate (35), wherein the first protrusion (11) is located in the middle area (105), wherein the first protrusion (11) has a first edge (B1) and a second edge (B2), wherein an angle between the first edge (B1) and the second edge (B2) is defined as α3, wherein α3 is directed toward the end area (106), and α3 is less than 90 degrees.

10. A heat exchanger (100), characterized in that: The heat exchanger (100) comprises a middle area (105) and an end area (106), wherein the end area (106) is located outside the middle area (105), and the heat exchanger (100) comprises a first plate (1), wherein the first plate (1) comprises a first substrate (35) and a first convex portion (11) which are connected to each other, wherein the first convex portion (11) protrudes from the first substrate (35) in a direction away from the first substrate (35), and the first convex portion (11) is located in the middle area (105), and in a first reference quadrilateral (D1) formed by connecting the center points of four adjacent first convex portions (11), one of the angles α4 of the first reference quadrilateral (D1) along the direction toward the end area (106) is less than 90 degrees.

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