Heat exchanger and heat exchange plate thereof

Abstract

The invention discloses a heat exchanger and a heat exchange plate thereof, the heat exchange plate is provided with a first hole part and a second hole part, each of the first hole part and the second hole part comprises a first communicating part, the first hole part and / or the second hole part comprises a second communicating part, and the distribution direction of the first hole part and the second hole part is defined as a first direction; the second communication part is distributed along a second direction relative to the first communication part, an included angle between the second direction and the first direction is greater than 0 degree, and the first communication part is communicated with the second communication part; the structural design of the heat exchange plate is beneficial to improving the uniformity of fluid distribution, increasing the exchange area and further improving the heat exchange performance.

Description

Technical Field

[0001] The present application relates to the field of thermal management technology, and in particular to a heat exchanger and a heat exchange plate thereof. Background Art

[0002] The corner hole structure of the heat exchange plate set diagonally is prone to the situation that the fluid is mainly concentrated in the middle area while the fluid distribution on both sides of the corner hole is less, causing the problem of uneven fluid distribution, reducing the fluid exchange area, and thus affecting the heat exchange performance. Summary of the invention

[0003] The purpose of the present application is to provide a heat exchanger and a heat exchange plate thereof, wherein the structural design of the heat exchange plate is conducive to improving the uniformity of fluid distribution, increasing the exchange area and thus improving the heat exchange performance.

[0004] One embodiment of the present application provides a heat exchange plate, wherein the heat exchange plate has a first hole portion and a second hole portion, wherein the first hole portion and the second hole portion both include a first connecting portion, and the first hole portion and / or the second hole portion include a second connecting portion, wherein the distribution direction of the first hole portion and the second hole portion is defined as a first direction, and the second connecting portion is distributed along a second direction relative to the first connecting portion, wherein the angle between the second direction and the first direction is greater than 0°, and the first connecting portion is connected to the second connecting portion.

[0005] The present application also provides a heat exchanger, comprising a plurality of the heat exchange plates arranged in a stacked manner, wherein the heat exchange plates are the heat exchange plates introduced above; the heat exchange plates include a connecting portion, and adjacent heat exchange plates are fixed by welding through two side surfaces of the connecting portion.

[0006] The embodiments of the present application provide a heat exchange plate and a heat exchanger, wherein the heat exchange plate has a first hole portion and a second hole portion, wherein the first hole portion and the second hole portion include a first connecting portion, and when the fluid flows between the first connecting portion of the first hole portion and the first connecting portion of the second hole portion, the main fluid area of ​​the fluid is concentrated in the area between the first connecting portion of the first hole portion and the first connecting portion of the second hole portion, and at the same time, the first hole portion and / or the second hole portion include a second connecting portion, and the second connecting portion is distributed along a second direction relative to the first connecting portion, and the distribution direction of the first hole portion and the second hole portion is the first direction, and the angle between the first direction and the second direction is greater than 0°, that is, the distribution direction of the second connecting portion is offset from that of the first hole portion and the second hole portion, and thus the main fluid area of ​​the fluid flowing between the second connecting portion and the first hole portion or the second hole portion does not overlap with the main fluid area of ​​the fluid flowing between the first connecting portion of the first hole portion and the first connecting portion of the second hole portion, thereby increasing the area of ​​the main fluid area when the fluid flows, increasing the exchange area, and thus improving the heat exchange performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0007] Figure 1 is a cross-sectional schematic diagram of a heat exchanger in one embodiment provided in the present application;

[0008] Figure 2 yes Figure 1 A partial enlarged view of the middle A area;

[0009] Figure 3 This is a schematic structural diagram of a first embodiment of a heat exchange plate provided in this application;

[0010] Figure 4 This application Figure 3 A schematic structural diagram of a second embodiment of the first hole portion and the second hole portion;

[0011] Figure 5 This application Figure 3 A schematic structural diagram of a third embodiment of the first hole portion and the second hole portion;

[0012] Figure 6 This application Figure 3 A schematic structural diagram of a second embodiment of a heat exchange plate;

[0013] Figure 7 It is a structural schematic diagram of a third embodiment of the heat exchange plate provided in this application;

[0014] Figure 8 This application Figure 7 A schematic structural diagram of a second embodiment of the first hole portion and the second hole portion;

[0015] Fig. 9 This application Figure 7 A schematic structural diagram of a third embodiment of the first hole portion and the second hole portion;

[0016] Fig.10 This application Figure 7 A schematic structural diagram of a fourth embodiment of the first hole portion and the second hole portion;

[0017] Fig.11 It is a structural schematic diagram of a fourth embodiment of the heat exchange plate provided in the present application;

[0018] Fig.12 This application Fig.11 A schematic structural diagram of another implementation scheme of the middle heat exchange part.

[0019] Description of reference numerals:

[0020] Heat exchange plate 10, connecting portion 101, first side 101A, second side 101B, first hole portion 102, first connecting portion 1021, second connecting portion 1022, second hole portion 103, fluid channel 104, first flow channel 1041, second flow channel 1042, third hole portion 105, fourth hole portion 106, edge portion 107, heat exchange portion 108, first convex portion 1081, first line L1, second line L2, first line portion 11, first length D2, second line portion 12, second length d2, third line L3, third line portion 13, third length D3, fourth line portion 14, fourth length d3. DETAILED DESCRIPTION

[0021] 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.

[0022] Please refer to Figure 1 and Figure 2 , Figure 1 A cross-sectional schematic diagram of a heat exchanger in an embodiment provided in the present application; Figure 2 for Figure 1 A partial enlarged view of point A in the middle.

[0023] An embodiment of the present application provides a heat exchanger, which includes a plurality of heat exchange plates 10 arranged in a stacked manner. The heat exchange plates 10 include a connecting portion 101, which facilitates the stacking of the heat exchange plates 10. The connecting portion 101 has a first side 101A and a second side 101B opposite to each other. When arranged, the first side 101A of the connecting portion 101 of one heat exchange plate 10 is fixed to the second side 101B of the connecting portion 101 of another heat exchange plate 10 by welding.

[0024] Fluid channels 104 are formed between adjacent heat exchange plates 10. Adjacent fluid channels 104 are located on both sides of the heat exchange plates 10, and adjacent fluid channels 104 are not connected. The fluid channels 104 on one side of the heat exchange plate 10 are used for the flow of the first fluid, and the fluid channels 104 on the other side of the heat exchange plate 10 are used for the flow of the second fluid. When flowing, heat exchange is performed between the first fluid and the second fluid.

[0025] This article focuses on improving the structure of the heat exchange plates of the heat exchanger, which is described in detail below with reference to the accompanying drawings.

[0026] Embodiment 1

[0027] Please refer to Figure 1-Figure 5The first embodiment shown in the figure specifically discloses a heat exchange plate 10, the heat exchange plate 10 has a first hole portion 102 and a second hole portion 103, the first hole portion 102 and the second hole portion 103 both include a first connecting portion 1021, the first connecting portion 1021 of the first hole portion 102 is connected to the first connecting portion 1021 of the second hole portion 103 along the fluid channel 104, when the fluid flows, a main fluid area is formed between the first connecting portion 1021 of the first hole portion 102 and the first connecting portion 1021 of the second hole portion 103, the first hole portion 102 and / or the second hole portion 103 include a second connecting portion 1022, the second connecting portion 102 of the first hole portion 102 The connecting portion 1022 is connected to the second hole portion 103 along the fluid channel 104, and / or the second connecting portion 1022 of the second hole portion 103 is connected to the first hole portion 102 along the fluid channel 104. When the fluid flows, another main fluid area is formed between the second connecting portion 1022 of the first hole portion 102 and the second hole portion 103, and / or the connecting portion of the second hole portion 103 and the first hole portion 102. The distribution direction of the first hole portion 102 and the second hole portion 103 is defined as a first direction. Since the distribution directions of the first hole portion 102 and the second hole portion 103 are numerous, it is further defined that along the first direction, the first hole portion is projected onto the second hole portion, and the overlapping area is the largest. It should be noted that, along the first direction, the maximum aperture of the first hole portion 102 and / or the second hole portion 103 is the first diameter, the first connecting portion 1021 mentioned here refers to the area of ​​the first hole portion 102 and / or the second hole portion 103 located in the circular area formed by the first diameter, the second connecting portion 1022 refers to the area of ​​the first hole portion 102 and / or the second hole portion 103 excluding the first connecting portion 1021, and the second connecting portion 1022 and the first connecting portion 1021 mentioned here are for the same first hole portion 102 or second hole portion 103, the second connecting portion 1022 is distributed along the second direction relative to the first connecting portion 1021, the angle between the second direction and the first direction is greater than 0°, another main fluid area formed by the fluid passing through the second connecting portion 1022 is at least partially located outside the main fluid area formed by the fluid passing through the first connecting portion 1021, the first connecting portion 1021 is connected to the second connecting portion 1022, and the provision of the second connecting portion 1022 increases the area of ​​the main fluid area, thereby increasing the heat exchange area and enhancing the heat exchange effect.

[0028] In this embodiment, the heat exchange plate 10 is circular. Figure 6 , of course it can also be a rectangle.

[0029] Embodiment 2

[0030] Please refer to Figure 2 and Figure 7The second embodiment shown is based on the previous embodiment and specifically discloses a heat exchange plate 10, the heat exchange plate 10 has a third hole portion 105 and a fourth hole portion 106, the fluid channel 104 includes a first flow channel 1041 and a second flow channel 1042, the first fluid flows in the first flow channel 1041, the second fluid flows in the second flow channel 1042, the first flow channel 1041 and the second flow channel 1042 are alternately arranged, the first hole portion 102 is connected to the second hole portion 103 along the first flow channel 1041, the third hole portion 105 is connected to the fourth hole portion 106 along the adjacent second flow channel 1042, along the direction perpendicular to the first direction, the third hole portion 105 and the fourth hole portion 106 are respectively located on both sides of the first hole portion 102 and the second hole portion 103, and the first fluid and the second fluid mainly exchange heat in the central area of ​​the heat exchange plate 10.

[0031] The second connecting portion 1022 of the first hole portion 102 is located between the first hole portion 102 and the third hole portion 105, and / or the second connecting portion 1022 of the first hole portion 102 is located between the first hole portion 102 and the fourth hole portion 106. The second connecting portion 1022 of the first hole portion 102 extends toward the third hole portion 105 and / or the fourth hole portion 106 on both sides to lengthen the first hole portion 102. The amount of fluid located in the area on both sides of the first hole portion 102 is increased, thereby increasing the main fluid region area where the first fluid flows in the first flow channel 1041, thereby increasing the heat exchange area of ​​the first fluid, and thereby increasing the heat exchange effect.

[0032] Of course, you can also refer to Figure 8 The second hole portion 103 includes a second connecting portion 1022, and the second connecting portion 1022 of the second hole portion 103 is located between the second hole portion 103 and the third hole portion 105, and / or, the second connecting portion 1022 of the second hole portion 103 is located between the second hole portion 103 and the fourth hole portion 106, and the second connecting portion 1022 of the second hole portion 103 extends toward the third hole portion 105 and / or the fourth hole portion 106 on both sides to lengthen the second hole portion 103, and the amount of fluid located on both sides of the second hole portion 103 is increased, thereby increasing the main area where the second fluid flows in the second flow channel 1042, thereby increasing the heat exchange area of ​​the second fluid, and thereby increasing the heat exchange effect.

[0033] Of course, you can also refer to Fig. 9The first hole portion 102 and the second hole portion 103 include a second connecting portion 1022, the second connecting portion 1022 of the first hole portion 102 is located between the first hole portion 102 and the third hole portion 105, and / or, the second connecting portion 1022 of the first hole portion 102 is located between the first hole portion 102 and the fourth hole portion 106, the second connecting portion 1022 of the second hole portion 103 is located between the second hole portion 103 and the third hole portion 105, and / or, the second connecting portion 1022 of the second hole portion 103 is located between the second hole portion 103 and the fourth hole portion 106 The second connecting portion 1022 of the first hole portion 102 and the second hole portion 103 extends toward the third hole portion 105 and / or the fourth hole portion 106 to lengthen the first hole portion 102 and the second hole portion 103, and the amount of fluid located on both sides of the first hole portion 102 and the second hole portion 103 increases, thereby increasing the main fluid area area where the first fluid flows in the first flow channel 1041 and the main fluid area area where the second fluid flows in the second flow channel 1042, thereby increasing the heat exchange area between the first fluid and the second fluid, and thereby increasing the heat exchange effect.

[0034] Embodiment 3

[0035] Please refer to Fig.10 The third embodiment shown is different from the second embodiment in that the heat exchange plate 10 includes an edge 107. Along the first direction, the second connecting portion 1022 and the edge 107 are located on the same side of the first connecting portion 1021. At least part of the second connecting portion 1022 is farther away from the center of the heat exchange plate 10 than the first connecting portion 1021. The second connecting portion 1022 reduces the distance between the edge 107 and the first hole portion 102 or the second hole portion 103, increases the fluid flow between the edge 107 and the first hole portion 102 or the second hole portion 103, thereby increasing the heat exchange area between the first fluid and the second fluid, thereby increasing the heat exchange effect.

[0036] Embodiment 4

[0037] Please refer to Fig.11 The fourth embodiment shown is based on the above embodiments and specifically discloses a heat exchange plate 10. The heat exchange plate 10 includes a heat exchange portion 108. The heat exchange portion 108 increases the contact area of ​​the fluid, thereby enhancing the heat exchange effect. The heat exchange portion 108 and the heat exchange plate 10 are an integrated structure. The heat exchange portion 108 is formed by stamping the heat exchange plate 10. The heat exchange portions 108 are alternately arranged along the third direction and alternately arranged along the fourth direction. The third direction is at right angles to the fourth direction, thereby enhancing the heat exchange effect.

[0038] In this embodiment, the third direction and the fourth direction form a right angle. Of course, the third direction and the fourth direction may also form an obtuse angle or an acute angle.

[0039] Embodiment 5

[0040] Please refer to Fig.12 The fifth embodiment shown is based on the previous embodiment and specifically discloses a heat exchange plate 10, wherein the heat exchange portion 108 includes a first protrusion 1081, at least part of the first protrusion 1081 is located on both sides of the first hole portion 102 and / or the second hole portion 103, the first protrusion 1081 is elongated, and the elongated first protrusion 1081 generates greater resistance to the fluid, thereby guiding more fluid to flow to the surrounding area of ​​the first hole portion 102 and / or the second hole portion 103, improving the distribution of the fluid flow, and more fluid exchanges heat around the first hole portion 102 and / or the second hole portion 103, thereby increasing the heat exchange effect.

[0041] Furthermore, the first protrusion 1081 extends to the areas on both sides of the first hole portion 102 or the second hole portion 103, and the extension direction or the reverse direction of the first protrusion 1081 passes through the center of the heat exchange plate 10, directing more fluid to the areas on both sides of the first hole portion 102 or the second hole portion 103, thereby increasing the heat exchange area of ​​the fluid and improving the heat exchange effect.

[0042] Embodiment 6

[0043] Please refer to Fig.12 The sixth embodiment shown is based on the above embodiments and specifically discloses that a line connecting the center of the first connecting portion 1021 of the first hole portion 102 and the center of the first connecting portion 1021 of the second hole portion 103 is defined as a first line L1, and a second line L2 is defined to be perpendicular to the first line L1 and pass through the center of the first hole portion 102. The second line L2 includes a first line portion 11 and a second line portion 12. The first line portion 11 is the overlapping portion of the second line L2 and the heat exchange plate 10. The first line portion 11 has a first length D2, and the second line portion 12 is the portion of the second line L2 located in the first hole portion 102. The second line portion 12 has a second length d2, and the ratio of the second length d2 to the first length D2 is in the range of 1 / 4-1 / 3. Since the larger the first hole portion 102, the smaller the area of ​​the remaining heat exchange plate 10, the length of the first hole portion 102 is controlled, thereby increasing the second connection portion 101 to improve fluid distribution and enhance the heat exchange effect, while reducing the impact of the reduction in heat exchange area on the heat exchange effect.

[0044] And / or, the second connecting portion 1022 of the second hole portion 103 is located between the second hole portion 103 and the third hole portion 105 and / or the fourth hole portion 106, and the third line L3 is defined to be perpendicular to the first line L1 and pass through the center of the second hole portion 103. The third line L3 includes a third line portion 13 and a fourth line portion 14. The third line portion 13 is the overlapping portion of the third line L3 and the heat exchange plate 10. The third line portion 13 has a third length D3, and the fourth line portion 14 is the portion of the third line L3 located in the second hole portion 103. The ratio of the fourth length d3 to the third length D3 is within 1 / 4-1 / 3. Since the larger the second hole portion 103, the smaller the area of ​​the remaining heat exchange plate 10, the length of the second hole portion 103 is controlled, thereby increasing the second connecting portion 101 to improve fluid distribution and enhance the heat exchange effect, while reducing the impact of the reduction in heat exchange area on the heat exchange effect.

[0045] It should be noted that: the heat exchanger provided by the present application is introduced in detail above. Specific examples are used in this article to illustrate the principles and implementation methods 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 principles 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 heat exchange plate, characterized in that: The heat exchange plate (10) has a first hole portion (102) and a second hole portion (103), the first hole portion (102) and the second hole portion (103) both include a first connecting portion (1021), the first hole portion (102) and / or the second hole portion (103) include a second connecting portion (1022), the distribution direction of the first hole portion (102) and the second hole portion (103) is defined as a first direction, the second connecting portion (1022) is distributed along a second direction relative to the first connecting portion (1021), the angle between the second direction and the first direction is greater than 0°, and the first connecting portion (1021) is connected to the second connecting portion (1022).

2. The heat exchange plate according to claim 1, characterized in that: The heat exchange plate (10) has a third hole portion (105) and a fourth hole portion (106). Along a direction perpendicular to the first direction, the third hole portion (105) and the fourth hole portion (106) are respectively located on both sides of the first hole portion (102) and the second hole portion (103).

3. The heat exchange plate according to claim 2, characterized in that: Along a direction perpendicular to the first direction, the second connecting portion (1022) of the first hole portion (102) is located between the first hole portion (102) and the third hole portion (105), and / or the second connecting portion (1022) of the first hole portion (102) is located between the first hole portion (102) and the fourth hole portion (106); a line connecting the center of the first connecting portion (1021) of the first hole portion (102) and the center of the first connecting portion (1021) of the second hole portion (103) is defined as a first line (L1), and a second line (L2) is defined as being perpendicular to the first line (L1). The second line (L2) passes through the center of the first connecting portion (1021) of the first hole portion (102), the second line (L2) comprises a first line portion (11) and a second line portion (12), the first line portion (11) is the overlapping portion of the second line (L2) and the heat exchange plate (10), the first line portion (11) has a first length (D2), the second line portion (12) is the portion of the second line (L2) located in the first hole portion (102), the second line portion (12) has a second length (d2), and the ratio of the second length (d2) to the first length (D2) is within 1 / 4-1 / 3.

4. The heat exchange plate according to claim 3, characterized in that: Along a direction perpendicular to the first direction, the second connecting portion (1022) of the second hole portion (103) is located between the second hole portion (103) and the third hole portion (105), and / or, the second connecting portion (1022) of the second hole portion (103) is located between the second hole portion (103) and the fourth hole portion (106); a third line (L3) is defined as being perpendicular to the first line (L1) and passing through the center of the first connecting portion (1021) of the second hole portion (103); The third line (L3) comprises a third line portion (13) and a fourth line portion (14), wherein the third line portion (13) is the portion where the third line (L3) overlaps with the heat exchange plate (10), and the third line portion (13) has a third length (D3), and the fourth line portion (14) is the portion of the third line (L3) located in the second hole portion (103), and the fourth line portion (14) has a fourth length (d3), and a ratio of the fourth length (d3) to the third length (D3) is within a range of 1 / 4-1 / 3.

5. The heat exchange plate according to claim 2, characterized in that: The heat exchange plate (10) comprises an edge portion (107); along the first direction, the second connecting portion (1022) and the edge portion (107) are located on the same side of the first connecting portion (1021); at least a portion of the second connecting portion (1022) is farther from the center of the heat exchange plate (10) than the first connecting portion (1021).

6. The heat exchange plate according to any one of claims 1 to 5, characterized in that: The heat exchange plate (10) comprises a heat exchange portion (108), the heat exchange portion (108) and the heat exchange plate (10) are an integral structure, the heat exchange portions (108) are arranged alternately along a third direction, and the heat exchange portions (108) are arranged alternately along a fourth direction, and the third direction forms an acute angle, a right angle, or an obtuse angle with the fourth direction.

7. The heat exchange plate according to claim 6, characterized in that: The heat exchange portion (108) comprises a first convex portion (1081), at least part of the first convex portion (1081) is located on both sides of the first hole portion (102) and / or the second hole portion (103), and the first convex portion (1081) is elongated.

8. The heat exchange plate according to claim 7, characterized in that: The first protrusion (1081) extends to the areas on both sides of the first hole portion (102) or the second hole portion (103), and the extension direction or the reverse direction of the first protrusion (1081) passes through the center of the heat exchange plate (10).

9. A heat exchanger, characterized in that: Comprising a plurality of the heat exchange plates (10) stacked together, wherein the heat exchange plates (10) are the heat exchange plates (10) according to any one of claims 1 to 8; The heat exchange plates (10) comprise a connecting portion (101), and adjacent heat exchange plates (10) are fixed by welding via the connecting portion (101).

10. The heat exchanger according to claim 9, characterized in that Fluid channels (104) are formed between adjacent heat exchange plates (10), and the adjacent fluid channels (104) are located on both sides of the heat exchange plates (10), and the adjacent fluid channels (104) are not connected, and the fluid channels (104) on one side of the heat exchange plate (10) are used for the flow of a first fluid, and the fluid channels (104) on the other side of the heat exchange plate (10) are used for the flow of a second fluid.

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