Plate sheet and heat exchanger

Abstract

The plate sheet comprises a plurality of stacked plate sheets, each plate sheet comprises a rib part and a base part, the rib part protrudes out of the base part, each plate sheet is provided with a first side part and a second side part, the rib part extends from the first side part to the second side part, a communicating part is arranged between the rib part and the second side part in the extending direction of the rib part, and each plate sheet comprises at least four corner holes. The at least four corner holes are closer to the first side part relative to the communicating parts in the extending direction of the rib part, a first inter-plate channel or a second inter-plate channel is formed between the plate sheet and the adjacent plate sheet, the rib part abuts against the adjacent plate sheet, the communicating parts communicate areas on the two sides of the rib part, and the communicating parts on the two sides of the plate sheet at least partially coincide in the direction perpendicular to the plate sheet; in the direction perpendicular to the plate pieces, due to the fact that the communicating parts located on the two sides of the plate pieces at least partially coincide, the first fluid and the second fluid at least partially coincide in the flowing area in the direction perpendicular to the extending direction of the convex ribs, the heat exchange area of the first fluid and the second fluid is increased, and then the heat exchange effect is enhanced.

Description

[0001] This application is a divisional 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 thermal management technology, and in particular to a plate and a heat exchanger. Background Art

[0003] The plate is provided with ribs to separate the fluid. When the fluid flows from one side of the rib to the other side in a direction perpendicular to the extension of the rib, the fluid flows on one side of the plate in a direction perpendicular to the plate, and the corresponding area on the other side of the plate is provided with corner holes for the fluid to flow in and out. The corner holes reduce the area of ​​the fluid flow, thereby reducing the heat exchange area in the area where the fluid flows from one side of the rib to the other side, thereby affecting the heat exchange performance. Summary of the invention

[0004] The purpose of the present application is to provide a plate and a heat exchanger, the structure of the plate is conducive to increasing the heat exchange area and thus enhancing the heat exchange effect.

[0005] One embodiment of the present application provides a plate, including a rib and a base, the rib protruding from the base, the plate having a first side and a second side, the rib extending from the first side toward the second side, and a connecting portion between the rib and the second side along the extending direction of the rib, the plate including at least four corner holes, and along the extending direction of the rib, at least four of the corner holes are closer to the first side relative to the connecting portion.

[0006] In the above technical solution, along the extension direction of the ribs, the connecting portion is close to the second side of the plate, and at least four corner holes are close to the first side of the plate relative to the connecting portion. In the direction perpendicular to the plate, both sides of the plate are fluid flow areas, and there is no obstruction by the corner holes, thereby increasing the heat exchange area between the first fluid and the second fluid at the connecting portion, thereby enhancing the heat exchange effect.

[0007] One embodiment of the present application provides a heat exchanger, including the above-mentioned plate, wherein a plurality of plates are stacked, a first inter-plate channel or a second inter-plate channel is provided between the plate and adjacent plates, the ribs abut against adjacent plates, the connecting portions connect the areas on both sides of the ribs, and the connecting portions on both sides of the plates at least partially overlap.

[0008] An embodiment of the present application provides a plate and a heat exchanger. Along a direction perpendicular to the plate, since the connecting parts located on both sides of the plate at least partially overlap, the flow areas of the first fluid and the second fluid along the direction perpendicular to the extension of the rib at least partially overlap, thereby increasing the heat exchange area between the first fluid and the second fluid, thereby enhancing the heat exchange effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1 is a three-dimensional structural schematic diagram of a first embodiment of the heat exchanger provided by the present application from one viewing angle;

[0010] Figure 2 yes Figure 1 A schematic diagram of a three-dimensional structure of the heat exchanger from another perspective;

[0011] Figure 3 yes Figure 1 Schematic diagram of the cross-sectional structure of the heat exchanger;

[0012] Figure 4 yes Figure 1 A schematic cross-sectional structure diagram of another embodiment of a heat exchanger;

[0013] Figure 5 This is a schematic diagram of the structure of the plate before the heat exchanger of the present application is assembled;

[0014] Figure 6 It is a structural schematic diagram of the first embodiment of the rib portion in the present application;

[0015] Figure 7 It is a structural schematic diagram of a second embodiment of the rib portion in the present application;

[0016] Figure 8 It is a schematic diagram of the assembly structure of the first embodiment of the rib part in the present application;

[0017] Fig. 9 It is a schematic diagram of the assembly structure of the second embodiment of the rib portion in the present application;

[0018] Fig.10 It is a three-dimensional structural schematic diagram of a first embodiment of the first hole channel, the second hole channel, the third hole channel and the fourth hole channel of the plate of the present application;

[0019] Fig.11 It is a structural schematic diagram of a second embodiment of the first hole channel, the second hole channel, the third hole channel and the fourth hole channel of the plate of the present application;

[0020] Fig.12 It is a structural schematic diagram of a third embodiment of the first hole channel, the second hole channel, the third hole channel and the fourth hole channel of the plate of the present application;

[0021] Fig.13It is a structural schematic diagram of a fourth embodiment of the first hole channel, the second hole channel, the third hole channel and the fourth hole channel of the plate of the present application;

[0022] Fig.14 It is a structural schematic diagram of a fifth embodiment of the first hole channel, the second hole channel, the third hole channel and the fourth hole channel of the plate of the present application;

[0023] Fig.15 It is a structural schematic diagram of a sixth embodiment of the first hole channel, the second hole channel, the third hole channel and the fourth hole channel of the plate of the present application;

[0024] Fig.16 It is a structural schematic diagram of a seventh embodiment of the first hole channel, the second hole channel, the third hole channel and the fourth hole channel of the plate of the present application;

[0025] Fig.17 It is a structural schematic diagram of an eighth embodiment of the first hole channel, the second hole channel, the third hole channel and the fourth hole channel of the plate of the present application;

[0026] Fig.18 It is a structural schematic diagram of a ninth embodiment of the first hole channel, the second hole channel, the third hole channel and the fourth hole channel of the plate of the present application;

[0027] Fig.19 It is a structural schematic diagram of a tenth embodiment of the first hole channel, the second hole channel, the third hole channel and the fourth hole channel of the plate of the present application;

[0028] Fig. 20 It is a structural schematic diagram of the eleventh embodiment of the first channel, the second channel, the third channel and the fourth channel of the plate of the present application.

[0029] Description of reference numerals:

[0030] 100, heat exchanger; 5, plate; 51, base; 53, corner hole; 54, first side; 55, second side; 56, third side; 57, fourth side; 541, first group of corner holes; 542, second group of corner holes; 15, first side; 16, second side; 101, first channel; 102, second channel; 103, third channel; 104, fourth channel; S1, first inter-plate channel; S2, second inter-plate channel; TU2, rib; LT0, connecting portion; CB, groove. DETAILED DESCRIPTION

[0031] Specific embodiments are now described in detail with reference to the accompanying drawings. In order to fully understand the present invention, numerous specific details are mentioned in the following detailed description, but those skilled in the art should understand that the specific components, devices and features illustrated in the accompanying drawings and described herein are only exemplary and should not be considered as limiting.

[0032] like Figure 1-Figure 20 The figure shows a first embodiment of the heat exchanger 100, the heat exchanger 100 comprises a plurality of plates 5, the plurality of plates 5 are stacked, a first inter-plate channel S1 is provided between the plate 5 and the plate 5 on one side adjacent to each other, a second inter-plate channel S2 is provided between the plate 5 and the plate 5 on the other side adjacent to each other, the first inter-plate channel S1 and the second inter-plate channel S2 are alternately provided, the first inter-plate channel S1 and the second inter-plate channel S2 are not connected, the first inter-plate channel S1 is for the flow of the first fluid, 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 provided, 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. In other embodiments, there may be a first inter-plate channel S1 between the plate 5 and the adjacent plate 5 on one side, and there may also be a first inter-plate channel S1 between the plate 5 and the adjacent plate 5 on the other side, and there may be a second inter-plate channel S2 between the next layer of plates 5, that is, two layers of first inter-plate channels S1 are continuously arranged, and then one layer of second inter-plate channel S2 is arranged, so that heat exchange between the first fluid and the second fluid can be achieved. In this embodiment, the second fluid refers to the coolant, which is mainly a coolant, such as cooling water or cooling oil, and the first fluid refers to the refrigerant, which is mainly a refrigerant, such as R134a, R1234yf, etc. Figure 4 , multiple plates 5 are stacked, and there is a first inter-plate channel S1 or a second inter-plate channel S2 between the plates 5 and the adjacent plates 5. In other embodiments, two or more layers of the second inter-plate channel S2 are continuously arranged, and then several layers of the first inter-plate channel S1 are arranged. The rib TU2 abuts against the adjacent plates 5, and the connecting portion LT0 connects the areas on both sides of the rib TU2. The connecting portions LT0 on both sides of the plates 5 at least partially overlap, and at least two layers of coolant are arranged in the middle to reduce the heat exchange temperature difference on both sides of the plates 5, thereby reducing the occurrence of thermal bridges. For the convenience of description, the upper and lower directions are defined as the upper and lower directions 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 adjacent sides are consistent, the directions of 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.

[0033] This article focuses on improving the structure of the plate 5 of the heat exchanger, which is described in detail below with reference to the accompanying drawings.

[0034] like Figure 1-Figure 7 As shown, in this embodiment, the heat exchanger 100 includes a plate 5, and the plate 5 includes a rib TU2 and a base 51. The rib TU2 is protruding from the base 51, and the rib TU2 and the base 51 are an integral structure. For example, the base 51 is stamped to form the rib TU2, and the rib TU2 is located in the first inter-plate channel S1 and the second inter-plate channel S2. Along the height direction of the plate, the rib TU2 abuts against the adjacent plate 5, and the plate 5 has a first side portion 54 and a second side portion 55. The rib TU2 extends from the first side portion 54 toward the second side portion 55. The rib TU2 divides the plate 5 into two parts along a direction perpendicular to the extension of the rib TU2. Along the extension direction of the rib TU2, there is a connecting portion LT0 between the rib TU2 and the second side portion 55. The plate 5 includes an angular hole 53. Along the extension direction of the rib TU2, the angular hole 53 is closer to the first side portion 54 than the connecting portion LT0. The side portion 54 and the corner hole 53 are both located on a side close to the first side portion 54. In the direction perpendicular to the plate 5, both sides of the plate 5 are fluid flow areas, and there is no obstruction by the corner hole 53, thereby increasing the heat exchange area between the first fluid and the second fluid at the connecting portion LT0, thereby enhancing the heat exchange effect. Along the direction perpendicular to the plate 5, the connecting portion LT0 in the first inter-plate channel S1 and the connecting portion LT0 in the adjacent second inter-plate channel S2 at least partially overlap. When the first fluid and the second fluid flow from one side of the rib TU2 to the other side along the direction perpendicular to the extension of the rib TU2, since the connecting portion LT0 in the first inter-plate channel S1 and the connecting portion LT0 in the second inter-plate channel S2 at least partially overlap, the first fluid and the second fluid at least partially overlap in the flow area, thereby increasing the heat exchange area of ​​the first fluid and the second fluid, thereby enhancing the heat exchange effect.

[0035] Combination Figure 5-Figure 6 In this embodiment, along the extension direction of the rib TU2, the extension length of the rib TU2 is greater than half the length of the plate 5, the rib TU2 in the first inter-plate channel S1 and the rib TU2 in the adjacent second inter-plate channel S2 extend from the same side of the plate 5 to the other opposite side, the connecting portion LT0 in the first inter-plate channel S1 and the connecting portion LT0 in the adjacent second inter-plate channel S2 are located on the same side of the plate 5, the overlapping area of ​​the connecting portion LT0 in the first inter-plate channel S1 and the connecting portion LT0 in the adjacent second inter-plate channel S2 is increased, the heat exchange area between the first fluid and the second fluid is further increased, and the heat exchange effect is enhanced.

[0036] Combination Figure 7In other embodiments, the rib TU2 in the first inter-plate channel S1 and the rib TU2 in the adjacent second inter-plate channel S2 can extend from different sides of the plate 5 to the other opposite side, the extension length of the rib TU2 is less than half the length of the plate 5, the connecting portion LT0 in the first inter-plate channel S1 and the connecting portion LT0 in the adjacent second inter-plate channel S2 overlap near the center line, and the center line is the extension direction of the plate along the rib TU2, thereby increasing the heat exchange area between the first fluid and the second fluid, thereby enhancing the heat exchange effect.

[0037] Combination Figure 8 In this embodiment, along the direction perpendicular to the plate 5, the rib TU2 in the first inter-plate channel S1 and the rib TU2 in the adjacent second inter-plate channel S2 are staggered. Along the direction perpendicular to the plate 5, the rib TU2 is protruded relative to the plate 5 toward the side close to the adjacent plate 5, and the rib TU2 abuts against the adjacent plate 5. After the rib TU2 abuts against the adjacent plate 5, the first inter-plate channel S1 and the second inter-plate channel S2 are separated into two parts, and the connection strength between the adjacent plates 5 is increased. In addition, the stamping distance of the rib TU2 is small, the wall thickness of the rib TU2 is less thinned, and the strength of the rib TU2 is enhanced.

[0038] Combination Fig. 9 In other embodiments, the rib TU2 in the first inter-board channel S1 and the rib TU2 in the adjacent second inter-board channel S2 can also be arranged to overlap along the direction perpendicular to the plate 5. The overlap here means that the orthographic projections of the rib TU2 in the first inter-board channel S1 and the rib TU2 in the adjacent second inter-board channel S2 overlap on the plate 5, and the rib TU2 forms a corresponding groove CB on the other side of the plate 5. The rib TU2 protrudes to the groove CB of the adjacent plate 5 and abuts against the groove CB. After the groove CB and the rib TU2 abut, the first inter-board channel S1 and the second inter-board channel S2 are separated into two parts, and the connection strength between the adjacent plates 5 is increased.

[0039] Combination Figure 2 , Figure 5 , Figure 6 , Fig.10 In this embodiment, the heat exchanger 100 includes a first channel 101, a second channel 102, a third channel 103 and a fourth channel 104. Along the extension direction of the rib TU2, the first channel 101, the second channel 102, the third channel 103 and the fourth channel 104 are all arranged close to the end of the plate 5 opposite to the connecting portion LT0.

[0040] Combination Figure 2 , Figure 5 , Figure 6 , Fig.10In this embodiment, the plate 5 includes four corner holes 53, which are arranged at one end of the plate 5 close to the first side portion 54. Along the direction perpendicular to the extension of the rib TU2, the two corner holes 53 located on the same side of the rib TU2 are distributed along the direction perpendicular to the extension of the rib TU2. The corner holes 53 are divided into a first group of corner holes 541 and a second group of corner holes 542. The two corner holes 53 of the first group of corner holes 541 are located on both sides of the rib TU2, and the first group of corner holes 541 flows the first fluid, the two corner holes 53 of the second group of corner holes 542 are located on both sides of the rib TU2, and the second group of corner holes 542 flows the second fluid. The four corner holes 53 of each plate 5 are arranged along the stacking direction of the plate 5. The four corner holes are aligned along the stacking direction of the plate 5 to form four channels, which are the first channel 101, the second channel 102, the third channel 103 and the fourth channel 104. The first channel 101 is for the refrigerant to flow into the heat exchanger 100, and the second channel 102 is for the refrigerant to flow out of the heat exchanger 100. At the first channel 101 and the second channel 102, the first inter-plate channel S1 is opened, and the first channel 101 and the second channel 102 are connected through the first inter-plate channel S1. At the first channel 101 and the second channel 102, the second inter-plate channel S2 is not opened, and the first channel 101 and the second channel 102 are not connected to the second inter-plate channel S2. In this embodiment, the third channel 103 is for the coolant to flow into the heat exchanger 100, and the fourth channel 104 is for the coolant to flow out of the heat exchanger 100. At the third channel 103 and the fourth channel 104, the second inter-plate channel S2 is opened, and the third channel 103 and the fourth channel 104 are connected through the second inter-plate channel S2. At the third channel 103 and the fourth channel 104, the first inter-plate channel S1 is not opened, and the third channel 103 and the fourth channel 104 are not connected to the first inter-plate channel S1. The refrigerant flows in the first inter-plate channel S1, and the coolant flows in the second inter-plate channel S2, and heat exchange occurs between the refrigerant and the coolant. In this embodiment, the plate 5 has a third side portion 56 and a fourth side portion 57. In the direction perpendicular to the extension of the rib TU2, the two corner holes 53 are closer to the third side portion 56 than the rib TU2, and the two corner holes 53 are closer to the fourth side portion 57 than the rib TU2. In this embodiment, in the direction perpendicular to the extension of the rib TU2, the first channel 101 and the fourth channel 104 are located on one side of the rib TU2, and the third channel 103 and the second channel 102 are located on the other side of the rib TU2. In this embodiment, the rib TU2 divides the plate 5 into a first side 15 and a second side 16. The first channel 101 is the inflow channel of the refrigerant, and the second channel 102 is the outflow channel of the refrigerant.The refrigerant flows into the heat exchanger 100 from the first channel 101, first flows on the first side 15 of the plate 5, then flows around the rib TU2 to the second side 16 of the plate 5, and flows out of the heat exchanger 100 from the second channel 102. The setting of the rib TU2 makes the refrigerant flow around the rib TU2 in a U-shaped line, so that the refrigerant has two flow sections, which can increase the flow path of the refrigerant, increase the heat exchange area between the refrigerant and the coolant, and improve the effect of the heat exchanger 100. In this embodiment, the third channel 103 is the inflow channel of the coolant, and the fourth channel 104 is the outflow channel of the coolant. The coolant flows into the heat exchanger 100 from the third channel 103, first flows on the second side 16 of the plate 5, then flows around the rib TU2 to the first side 15 of the second plate 2, and flows out of the heat exchanger 100 from the fourth channel 104. The coolant flows around the rib TU2 in a U-shaped line. The setting of the rib TU2 can make the coolant have two flow sections, which can increase the flow path of the coolant and improve the heat exchange effect of the coolant and the refrigerant. In addition, along the direction perpendicular to the extension of the rib TU2, the inflow of the refrigerant and the outflow of the coolant are located on one side of the rib TU2, and the outflow of the refrigerant and the inflow of the coolant are located on the other side of the rib TU2. The refrigerant and the coolant always maintain countercurrent on the flow path, which increases the heat exchange temperature difference between the refrigerant and the coolant and enhances the heat exchange performance.

[0041] Along the direction perpendicular to the extension of the rib TU2, the two corner holes 53 located on the same side of the rib TU2 are distributed along the extension direction of the rib TU2. Fig.11 and Fig.12 In other embodiments, the first channel 101 and the fourth channel 104 can be distributed along the extension direction of the rib TU2, so that the overlapping area of ​​the refrigerant and the coolant flowing at the first side 15 is increased, thereby increasing the heat exchange area between the refrigerant and the coolant, thereby improving the heat exchange effect. Fig.13 and Fig.14In other embodiments, the second channel 102 and the third channel 103 can be distributed along the extension direction of the rib TU2, and the overlapping area of ​​the refrigerant and the coolant flowing at the second side 16 is increased, thereby increasing the heat exchange area of ​​the refrigerant and the coolant, and thus improving the heat exchange effect. The first channel 101 is the inlet channel of the refrigerant, and the second channel 102 is the outlet channel of the refrigerant. The refrigerant flows into the heat exchanger 100 from the first channel 101, first flows on the first side 15 of the plate 5, then flows around the rib TU2 to the second side 16 of the plate 5, and flows out of the heat exchanger 100 from the second channel 102. The setting of the rib TU2 allows the refrigerant to flow in a U-shaped line around the rib TU2, so that the refrigerant has two flow sections, which can increase the flow path of the refrigerant, increase the heat exchange area of ​​the refrigerant and the coolant, and improve the effect of the heat exchanger 100. In this embodiment, the third channel 103 is the inflow channel of the coolant, and the fourth channel 104 is the outflow channel of the coolant. The coolant flows into the heat exchanger 100 from the third channel 103, first flows on the second side 16 of the plate 5, then flows around the rib TU2 to the first side 15 of the second plate 2, and flows out of the heat exchanger 100 from the fourth channel 104. The coolant flows around the rib TU2 in a U-shaped line. The setting of the rib TU2 can make the coolant have two flow sections, which can increase the flow path of the coolant and improve the heat exchange effect of the coolant and the refrigerant. In addition, along the direction perpendicular to the extension of the rib TU2, the inflow of the refrigerant and the outflow of the coolant are located on one side of the rib TU2, and the outflow of the refrigerant and the inflow of the coolant are located on the other side of the rib TU2. The refrigerant and the coolant always maintain countercurrent on the flow path, and the heat exchange temperature difference between the refrigerant and the coolant is increased, thereby enhancing the heat exchange performance.

[0042] Combination Fig.10, along the direction perpendicular to the extension of the rib TU2, on the side of the rib TU2 close to the third side portion 56, the corner hole 53 of the first group of corner holes 541 is closer to the rib TU2 than the corner hole 53 of the second group of corner holes 542, and on the side of the rib TU2 close to the fourth side portion 57, the corner hole 53 of the second group of corner holes 542 is closer to the rib TU2 than the corner hole 53 of the first group of corner holes 541, that is, in this embodiment, along the direction perpendicular to the extension of the rib TU2, the first channel 101 is closer to the rib TU2 than the fourth channel 104, and the third channel 103 is closer to the rib TU2 than the second channel 102, the refrigerant flows in from the side close to the rib TU2 and then flows out from the side away from the rib TU2, and the coolant flows in from the side away from the rib TU2 and then flows out from the side close to the rib TU2, thereby reducing the probability of the refrigerant or the coolant accumulating in the area near the rib TU2 and improving the fluid distribution. rate, thereby increasing the exchange effect; or, along the direction perpendicular to the extension of the rib TU2, on the side of the rib TU2 close to the third side portion 56, the corner hole 53 of the second group of corner holes 542 is closer to the rib TU2 than the corner hole 53 of the first group of corner holes 541, on the side of the rib TU2 close to the fourth side portion 57, the corner hole 53 of the first group of corner holes 541 is closer to the rib TU2 than the corner hole 53 of the second group of corner holes 542, the fourth channel 104 is closer to the rib TU2 than the first channel 101, and the second channel 102 is closer to the rib TU2 than the third channel 103, the refrigerant flows in from the side away from the rib TU2 and then flows out from the side close to the rib TU2, the coolant flows in from the side close to the rib TU2 and then flows out from the side away from the rib TU2, the probability of the refrigerant or coolant accumulating in the area near the rib TU2 is reduced, the fluid distribution rate is improved, and the exchange effect is increased.

[0043] Combination Figure 15-Figure 20 In other embodiments, the two corner holes 53 of the first group of corner holes 541 may be closer to the rib TU2 than the two corner holes 53 of the second group of corner holes 542 along the direction perpendicular to the extension of the rib TU2, that is, the fourth channel 104 is closer to the rib TU2 than the first channel 101, and the third channel 103 is closer to the rib TU2 than the second channel 102; or, the first channel 101 is closer to the rib TU2 than the fourth channel 104, and the second channel 102 is closer to the rib TU2 than the third channel 103, the refrigerant and the coolant always maintain countercurrent on the flow path, and the overlapping area of ​​the refrigerant and the coolant flowing at the first side 15 or the second side 16 is increased, the heat exchange area of ​​the refrigerant and the coolant is increased, and the heat exchange effect is improved, the heat exchange temperature difference between the refrigerant and the coolant is increased, and the heat exchange performance is enhanced.

[0044] It should be noted that the plate and heat exchanger provided by the present application are introduced in detail above. Specific examples are used in this article to illustrate the principle and implementation method of the present application. The description of the above embodiments is only used to help understand the core idea of ​​the present application. It should be pointed out that for ordinary technicians in this technical field, without departing from the principle of the present application, several improvements and modifications can be made to the present application, and these improvements and modifications also fall within the scope of protection of the claims of the present application.

Claims

1. A plate (5), characterized in that: The plate (5) comprises a rib (TU2) and a base (51), wherein the rib (TU2) is arranged to protrude from the base (51), the plate (5) has a first side portion (54) and a second side portion (55), the rib (TU2) extends from the first side portion (54) toward the second side portion (55), and along the extension direction of the rib (TU2), a connecting portion (LT0) is provided between the rib (TU2) and the second side portion (55), and the plate (5) comprises at least four corner holes (53), and along the extension direction of the rib (TU2), at least four of the corner holes (53) are closer to the first side portion (54) relative to the connecting portion (LT0).

2. The plate (5) according to claim 1, characterized in that Along the extension direction of the rib portion (TU2), four corner holes (53) are all arranged at one end of the plate (5) close to the first side portion (54).

3. The plate (5) according to claim 2, characterized in that The plate (5) has a third side portion (56) and a fourth side portion (57), and along a direction perpendicular to the extension of the rib portion (TU2), the two corner holes (53) are closer to the third side portion (56) than the rib portion (TU2), and the two corner holes (53) are closer to the fourth side portion (57) than the rib portion (TU2).

4. The plate (5) according to claim 3, characterized in that Along a direction perpendicular to the extension of the rib portion (TU2), the two corner holes (53) located on the same side of the rib portion (TU2) are distributed along the direction perpendicular to the extension of the rib portion (TU2); Alternatively, the two corner holes (53) located on the side of the rib portion (TU2) close to the third side portion (56) are distributed along a direction perpendicular to the extension of the rib portion (TU2), and the two corner holes (53) located on the side of the rib portion (TU2) close to the fourth side portion (57) are distributed along the extension direction of the rib portion (TU2); Alternatively, along a direction perpendicular to the extension of the rib portion (TU2), the two corner holes (53) located on the same side of the rib portion (TU2) are distributed along the extension direction of the rib portion (TU2).

5. The plate (5) according to claim 3 or 4, characterized in that The corner holes (53) are divided into a first group of corner holes (541) and a second group of corner holes (542); the two corner holes (53) of the first group of corner holes (541) are located on both sides of the rib portion (TU2); a first fluid flows through the first group of corner holes (541); the two corner holes (53) of the second group of corner holes (542) are located on both sides of the rib portion (TU2); a second fluid flows through the second group of corner holes (542).

6. The plate (5) according to claim 5, characterized in that Along a direction perpendicular to the extension of the rib portion (TU2), the two angular holes (53) of the first group of angular holes (541) are closer to the rib portion (TU2) than the two angular holes (53) of the second group of angular holes (542); Alternatively, along a direction perpendicular to the extension of the rib portion (TU2), on a side of the rib portion (TU2) close to the third side portion (56), the corner holes (53) of the first group of corner holes (541) are closer to the rib portion (TU2) than the corner holes (53) of the second group of corner holes (542); and on a side of the rib portion (TU2) close to the fourth side portion (57), the corner holes (53) of the second group of corner holes (542) are closer to the rib portion (TU2) than the corner holes (53) of the first group of corner holes (541); Alternatively, along a direction perpendicular to the extension of the rib portion (TU2), on a side of the rib portion (TU2) close to the third side portion (56), the corner holes (53) of the second group of corner holes (542) are closer to the rib portion (TU2) than the corner holes (53) of the first group of corner holes (541); and on a side of the rib portion (TU2) close to the fourth side portion (57), the corner holes (53) of the first group of corner holes (541) are closer to the rib portion (TU2) than the corner holes (53) of the second group of corner holes (542); Alternatively, along a direction perpendicular to the extension of the rib portion (TU2), the two corner holes (53) of the second group of corner holes (542) are closer to the rib portion (TU2) than the two corner holes (53) of the first group of corner holes (541).

7. A heat exchanger (100), characterized in that: It comprises a plurality of plates (5) as described in any one of claims 1 to 6, wherein the plurality of plates (5) are stacked, wherein a first inter-plate channel (S1) or a second inter-plate channel (S2) is provided between the plate (5) and the adjacent plate (5), wherein the rib portion (TU2) abuts against the adjacent plate (5), and the connecting portion (LT0) connects the areas on both sides of the rib portion (TU2), and along a direction perpendicular to the plate 5, the connecting portions (LT0) on both sides of the plate (5) at least partially overlap.

8. The heat exchanger (100) according to claim 7, characterized in that: Along the length direction of the heat exchanger (100), the rib portion (TU2) in the first inter-plate channel (S1) and the rib portion (TU2) in the adjacent second inter-plate channel (S2) extend in the same direction, and the connecting portion (LT0) in the first inter-plate channel (S1) and the connecting portion (LT0) in the adjacent second inter-plate channel (S2) are located on the same side of the plate (5).

9. The heat exchanger (100) according to claim 7, characterized in that: Along the length direction of the heat exchanger (100), the ribs (TU2) in the first inter-plate channel (S1) and the ribs (TU2) in the adjacent second inter-plate channel (S2) extend in opposite directions; the connecting portion (LT0) in the first inter-plate channel (S1) is located on one side of the plate (5), and the connecting portion (LT0) in the adjacent second inter-plate channel (S2) is located on the other side opposite to the plate (5).

10. The heat exchanger (100) according to claim 8, characterized in that: The heat exchanger (100) comprises a first hole channel (101), a second hole channel (102), a third hole channel (103) and a fourth hole channel (104); along a direction perpendicular to the extension of the rib portion (TU2), the first hole channel (101) and the fourth hole channel (104) are located on one side of the rib portion (TU2), the second hole channel (102) and the third hole channel (103) are located on the other side of the rib portion (TU2), the first hole channel (101) is connected to the second hole channel (102) through the first inter-plate channel (S1), the third hole channel (103) is connected to the fourth hole channel (104) through the second inter-plate channel (S2), and the first inter-plate channel (S1) and the second inter-plate channel (S2) are not connected; Along the width direction of the plate (5), the fourth hole (104) is closer to the rib (TU2) than the first hole (101), and the second hole (102) is closer to the rib (TU2) than the third hole (103); or, the first hole (101) is closer to the rib (TU2) than the fourth hole (104), and the second hole (102) is closer to the rib (TU2) than the third hole (103).

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