Heat exchanger

Abstract

The utility model relates to a heat exchanger which specifically comprises a first plate sheet and a second plate sheet which are arranged in a stacked mode, the second plate sheet comprises a first rib part, a second rib part and a first plate part, the second rib part and the first rib part protrude relative to the first plate part, the stacking direction of the first plate sheet and the second plate sheet is defined as the first direction, and the first plate sheet and the second plate sheet are stacked in the first direction. The protruding directions of the second rib parts and the first rib parts are the same, in the first direction, the second rib parts and the first rib parts form first recesses on one side of the second plate sheet, the second rib parts and / or the first rib parts comprise first turbulent flow parts, and the first turbulent flow parts are located in the first recesses; according to the heat exchanger, the medium flowing in the first recess is disturbed through the first turbulent flow part, the flowing resistance of the medium in the first recess is increased, medium bypass caused by the first recess formed by the second rib part and the first rib part on one side of the second plate sheet is reduced, and then the heat exchange efficiency of the heat exchanger is improved.

Description

Technical Field

[0001] This utility model relates to the field of thermal management technology, and in particular to a heat exchanger for automobiles. Background Technology

[0002] U-loop heat exchangers require ribs on the plates. These ribs work in conjunction with adjacent plates to isolate the medium, increasing the length of the medium flow path and thus improving the heat exchanger's efficiency. The ribs protruding from the plates create recesses on the opposite side of the plates. When in conjunction with adjacent plates, these recesses form bypass channels. Medium flowing through these bypass channels affects the heat exchanger's efficiency. Utility Model Content

[0003] Therefore, it is necessary to provide a heat exchanger that reduces medium bypass in order to address the above problems.

[0004] The technical solution adopted in this utility model is as follows:

[0005] A heat exchanger includes a first plate and a second plate stacked together. The second plate includes a first rib, a second rib, and a first plate portion. The second rib and the first rib protrude relative to the first plate portion. The stacking direction of the first plate and the second plate is defined as a first direction. Along the first direction, the protrusion directions of the second rib and the first rib are the same. Along the first direction, the second rib and the first rib form a first recess on one side of the second plate. The recess direction of the first recess relative to the first plate portion is the same as the protrusion direction of the second rib and the first rib relative to the first plate portion. The second rib and / or the first rib includes a first turbulence portion located in the first recess.

[0006] In the above technical solution, since the second rib and the first rib protrude relative to the first plate, the second rib and the first rib form a first depression on one side of the second plate. At least one of the second rib and the first rib includes a first turbulence part, which is located in the first depression. The first turbulence part turbulents the medium flowing in the first depression, increases the resistance of the medium flowing in the first depression, reduces the medium bypass caused by the first depression formed by the second rib and the first rib on one side of the second plate, and thus improves the heat exchange efficiency of the heat exchanger. Attached Figure Description

[0007] Figure 1 An exploded structural diagram of a first embodiment of a heat exchanger provided by this utility model;

[0008] Figure 2 for Figure 1 A schematic diagram of the exploded structure of the stacked heat exchange plates;

[0009] Figure 3 for Figure 1 A cross-sectional view of the stacked heat exchange plates.

[0010] Figure 4 for Figure 3 Enlarged structural diagram at point A;

[0011] Figure 5 This is a schematic diagram of the structure of the second plate in Embodiment 1;

[0012] Figure 6 This is a cross-sectional view of the stacked first and second plates in Embodiment 1.

[0013] Figure 7 This is a schematic diagram of the structure of the second plate in Example 2;

[0014] Figure 8 This is a cross-sectional view of the stacked first and second plates in Embodiment 2;

[0015] Figure 9 This is a schematic diagram of another structure of the second plate in Embodiment 2;

[0016] Figure 10 This is a schematic diagram of the structure of the second plate in Example 3;

[0017] Figure 11 This is a cross-sectional view of the stacked first and second plates in Embodiment 3;

[0018] Figure 12 This is a schematic diagram of the structure of the second plate in Example 4;

[0019] Figure 13 This is a cross-sectional view of the stacked first and second plates in Embodiment 4;

[0020] Figure 14 This is a schematic diagram of another structure of the second plate in Example 4;

[0021] Figure 15 This is a schematic diagram of the structure of the second plate in Example 5;

[0022] Figure 16 This is a schematic diagram of the structure of the first plate in Example 5;

[0023] Figure 17 This is a schematic diagram of the stacked exploded structure of the first and second plates in Example 5;

[0024] Figure 18 for Figure 17 A structural diagram from another direction;

[0025] Figure 19 for Figure 18 A schematic diagram of the assembly structure of the first plate, the second plate, and the fins;

[0026] Figure 20 This is a cross-sectional structural schematic diagram of a second embodiment of a heat exchanger provided by this utility model.

[0027] Explanation of reference numerals in the attached figures:

[0028] 1. Heat exchanger; 11. Heat exchange plate; 111. Rib; 112. First plate; 1121. Third rib; 11211. First connecting surface; 1122. Second recess; 1123. First side; 1124. Second side; 1125. First edge; 1126. Connecting part; 1127. First face; 1128. Second face; 113. Second plate; 1131. Second rib; 311. First sidewall; 3111. First base; 312. Second sidewall; 3121. Second base; 1132. First rib; 321. Third sidewall; 3211. Third base; 322. Fourth sidewall; 3221. Fourth base; 1133. First recess ; 1134, First plate portion; 1135, Second protrusion; 1136, Third side; 1137, Fourth side; 1138, Second edge portion; 1139, Connecting portion; 1140, Groove portion; 11401, Second connecting surface; 1141, Third surface portion; 1142, Fourth surface portion; 20, First turbulence portion; 21, First recessed portion; 22, First protrusion portion; 23, Second recessed portion; 24, Second protrusion portion; 12, First heat exchange channel; 121, First flow channel; 122, Second flow channel; 13, Second heat exchange channel; 14, Turbulence structure; 141, Concave-convex structure; 142, Fin; 30, First barrier portion; 15, Rib; 16, First protrusion; 40, Second plate portion. Detailed Implementation

[0029] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the scope of the present utility model.

[0030] Please see Figures 1-20The heat exchanger 1 provided by this utility model includes stacked heat exchange plates 11. The heat exchanger 1 also includes a first heat exchange channel 12 and a second heat exchange channel 13. At least a portion of the first heat exchange channel 12 and the second heat exchange channel 13 are alternately arranged. There is a first heat exchange channel 12 between the heat exchange plates 11 and adjacent heat exchange plates 11, and there is a second heat exchange channel 13 between the heat exchange plates 11 and another adjacent heat exchange plate 11. One medium flows in the first heat exchange channel 12 and another medium flows in the second heat exchange channel 13, and the two media exchange heat. To improve the heat exchange efficiency of heat exchanger 1, a turbulence structure 14 can be provided in the first heat exchange channel 12 and the second heat exchange channel 13. For example, a concave-convex structure 141 can be provided on at least one heat exchange plate 11, or fins 142 can be provided between adjacent heat exchange plates 11 to increase the turbulence effect on the medium, thereby improving the heat exchange efficiency of heat exchanger 1. Furthermore, to increase the length of the medium flow path, a rib 15 can be provided on at least one heat exchange plate 11. When the medium flows in the first heat exchange channel 12 and the second heat exchange channel 13, since the rib 15 protrudes from the plate surface of the heat exchange plate 11, the medium is blocked by the rib 15 during the flow process and flows around the rib 15, thereby increasing the length of the medium flow path and thus improving the heat exchange efficiency of heat exchanger 1.

[0031] The heat exchanger 1 includes a first plate 112 and a second plate 113 stacked together. The second plate 113 includes a first rib 1132, a second rib 1131, and a first plate 1134. The second rib 1131 and the first rib 1132 protrude relative to the first plate 1134. The stacking direction of the first plate 112 and the second plate 113 can be defined as a first direction. Along the first direction, the protrusion directions of the second rib 1131 and the first rib 1132 are the same. Along the first direction, the second rib 1131 and the first rib 1132 form a first recess 1133 on one side of the second plate 113. The first recess 1133 is opposite to the first plate 113. The recessed direction of the first plate portion 1134 is the same as the protruding direction of the second rib portion 1131 and the first rib portion 1132 relative to the first plate portion 1134. The second rib portion 1131 and / or the first rib portion 1132 includes a first turbulence portion 20. The first turbulence portion 20 is located in the first recess 1133. The first turbulence portion 20 turbulentizes the medium flowing in the first recess 1133, increases the resistance of the medium flowing in the first recess 1133, reduces the medium bypass caused by the first recess 1133 formed by the second rib portion 1131 and the first rib portion 1132 on one side of the second plate 113, and thus improves the heat exchange efficiency of the heat exchanger 1.

[0032] In this design, the first plate 112 includes a third rib 1121 and a second plate 40. The third rib 1121 protrudes relative to the second plate 40. Along the first direction, the protrusion directions of the third rib 1121, the second rib 1131, and the first rib 1132 are the same. Since the third rib 1121, the second rib 1131, and the first rib 1132 all protrude in the same direction along the first direction, the third rib 1121 is located on the first plate 112, and the second rib 1131 and the first rib 1132 are located on the second plate 113. The first plate 112 and the second plate 113 are stacked, and the first heat exchange channel 12 and the second heat exchange channel 13 are alternately arranged. Therefore, the medium in the first heat exchange... The flow paths in both channel 12 and the second heat exchange channel 13 are increased. For example, the third rib 1121 is located in the first heat exchange channel 12, and the second rib 1131 and the first rib 1132 are located in the second heat exchange channel 13; or, the third rib 1121 is located in the second heat exchange channel 13, and the second rib 1131 and the first rib 1132 are located in the first heat exchange channel 12. In this embodiment, the second rib 1131 and the first rib 1132 are located in the first heat exchange channel 12, and the third rib 1121 is located in the second heat exchange channel 13. The third rib 1121 forms a second recess 1122 on one side of the first plate 112. The recess 1122 of the second recess 1122 relative to the recess of the second plate 40 is parallel to the third rib 1121. 21 has the same protruding direction as the second plate portion 40. The medium flows in the first heat exchange channel 12 and the second heat exchange channel 13. Since the third rib portion 1121 has a second recess 1122 formed on one side of the first plate 112, the medium will flow into the second recess 1122 and along the extending direction of the third rib portion 1121. The medium flowing in the second recess 1122 formed in the third rib portion 1121 will bypass the concave-convex structure 141, so the heat exchange efficiency of the heat exchanger 1 will be reduced. Since the second recess 1122 is between the second rib portion 1131 and the first rib portion 1132 along the direction perpendicular to the extending direction of the third rib portion 1121, the third rib portion 1122 is also located in the second recess 1131 and the first rib portion 1132 along the direction perpendicular to the extending direction of the third rib portion 1121. 21. The second recess 1122 formed in the first plate 112 is located between the connection between the second rib 1131 and the first plate 112 and the connection between the first rib 1132 and the first plate 112. Along the first direction, the second rib 1131 is fixedly connected to the second plate portion 40 of the adjacent first plate 112, and the first rib 1132 is fixedly connected to the second plate portion 40 of the adjacent first plate 112. Therefore, along the direction perpendicular to the extension of the third rib 1121, the medium does not flow directly through the second recess 1122 formed on one side of the first plate 112 by the third rib 1121, reducing medium bypass and thereby improving the heat exchange efficiency of the heat exchanger 1. Furthermore, the first rib 1132 and the second rib 1131 are provided in the second plate 113.The first rib 1132 and the second rib 1131 are both fixedly connected to the second plate portion 40 of the adjacent first plate 112, thereby strengthening the connection between the first plate 112 and the second plate 113 and reducing the probability of connection failure between the first rib 1132 and the second rib 1131 and the first plate 112.

[0033] The third rib 1121 forms a second recess 1122 on one side of the first plate 112, and the third rib 1121 forms a first protrusion 16 on the other side of the first plate 112. The second rib 1131 and the first rib 1132 form a first recess 1133 on one side of the second plate 113, and the second rib 1131 and the first rib 1132 form a second protrusion 1135 on the other side of the second plate 113. It should be noted that in this solution, the rib 15 of the second plate 113 includes the second rib 1131 and the first rib 1132. Both the second rib 1131 and the first rib 1132 protrude from the second plate 113. The second protrusion 1135 mentioned in this solution includes the protruding part of the second rib 1131 and the protruding part of the first rib 1132.

[0034] In this design, both the first heat exchange channel 12 and the second heat exchange channel 13 in heat exchanger 1 are U-shaped loops. Therefore, the first plate 112 includes a third rib 1121, and the second plate 113 includes a first rib 1132 and a second rib 1131. In other embodiments, such as... Figure 20 As shown, the second rib 1131 and the first rib 1132 are located within the first heat exchange channel 12, and the first heat exchange channel 12 can be a U-shaped loop. The second plate 113 includes the first rib 1132 and the second rib 1131.

[0035] This paper focuses on improving the structure of the first rib 1132, the second rib 1131 and the third rib 1121, which will be explained below with reference to the attached drawings.

[0036] Example 1

[0037] like Figure 5 , Figure 6The first embodiment shown specifically discloses a second rib 1131 extending in a direction perpendicular to the second rib 1131. The second rib 1131 includes a first sidewall 311 and a second sidewall 312. The first sidewall 311 and the second sidewall 312 are walls that are not parallel to the surface of the first plate 1134. Since the second rib 1131 protrudes relative to the first plate 1134 in a first direction, along the first direction, the second rib 1131 forms a second protrusion 1135 on one side of the second plate 113 and a first recess 1133 on the other side of the second plate 113. Since the second plate 113 includes the second rib 1131 and the first rib 1132, the second rib 1131 and the first rib 1132 together form the second rib 1135. The protrusion 1135 and the first recess 1133, therefore, for the second protrusion 1135, the second protrusion 1135 includes the portion formed by the second rib 1131 and the portion formed by the first rib 1132, the portion formed by the second rib 1131 is described as the second protrusion 1135 formed by the second rib 1131. For the first recess 1133, the first recess 1133 includes the portion formed by the second rib 1131 and the portion formed by the first rib 1132, the portion formed by the second rib 1131 is described as the first recess 1133 formed by the second rib 1131. Also, since along the first direction, the second rib 1131 is fixedly connected to the first plate portion 1134 of the first plate 112, that is, the second rib 1131 forms the first plate portion 1134. The two protrusions 1135 are fixedly connected to the first plate 112. The second rib 1131 acts as a barrier to the medium. The medium flowing in the first heat exchange channel 12 is blocked by the second rib 1131, causing the medium to flow around the second rib 1131, increasing the flow path length of the medium and thus increasing the heat exchange efficiency of the heat exchanger 1. The second rib 1131 forms a first recess 1133 on the other side of the second plate 113. The medium flowing in the second heat exchange channel 13 flows into the first recess 1133 formed by the second rib 1131 in the second plate 113 and flows along the extension direction of the second rib 1131. The medium flowing in the first recess 1133 formed by the second rib 1131 is not disturbed by the turbulence structure 14, which will reduce the flow rate. To reduce the heat exchange efficiency of heat exchanger 1, the first turbulence section 20 includes a first recess 21, and the first sidewall 311 includes the first recess 21 and a first base 3111. The first recess 21 is recessed relative to the first base 3111 towards the second sidewall 312. Since the second rib 1131 protrudes from one side of the second plate 113 to form the portion of the first recess 1133, and forms the portion of the second protrusion 1135 on the other side of the second plate 113, the wall portion forming the second rib 1131 includes the first sidewall 311 and the second sidewall 312. The first recess 1133 formed by the second rib 1131 is located between the first sidewall 311 and the second sidewall 312. The first recess 21 of the first sidewall 311 is recessed towards the second sidewall 312.That is, the first recess 21 is recessed into the first depression 1133 formed by the second rib 1131, reducing the flow cross-sectional area of ​​the first depression 1133 formed by the second rib 1131. This makes it more difficult for the medium to flow into the first depression 1133 formed by the second rib 1131, resulting in a smaller amount of medium flowing into the first depression 1133 formed by the second rib 1131. This reduces the bypass volume entering the first depression 1133 formed by the second rib 1131, thereby improving the heat exchange efficiency of the heat exchanger 1. Furthermore, because the first recess 21 is recessed into the first depression 1133 formed by the second rib 1131, the flow cross-sectional area of ​​the first depression 1133 formed by the second rib 1131 is reduced, increasing the resistance to the flow of the medium in the depression formed by the second rib 1131. This further reduces the bypass volume in the first depression 1133 formed by the second rib 1131, improving the heat exchange efficiency of the heat exchanger 1.

[0038] Example 2

[0039] like Figures 7-9 The second embodiment shown in this embodiment specifically discloses that the first turbulence portion 20 includes a first protrusion 22, and the second sidewall 312 includes the first protrusion 22 and the second base 3121. The first protrusion 22 protrudes away from the second base 3121 in a direction away from the first sidewall 311. Since the second rib portion 1131 protrudes from one side of the second plate 113 to form a first recess 1133, and forms a second protrusion 1135 on the other side of the second plate 113, the wall portion forming the second rib portion 1131 includes the first sidewall 311 and the second sidewall 312. The first recess 1133 is located between the first sidewall 311 and the second sidewall 312. The first protrusion 22 protrudes away from the first sidewall 311 relative to the second base 3121, that is, the first protrusion 22 protrudes outward from the first recess 1133 formed by the second rib 1131. The flow cross-sectional area of ​​the first recess 1133 formed by the second rib 1131 changes, increasing the resistance of the medium flowing in the first recess 1133 formed by the second rib 1131, thereby reducing the bypass volume of the first recess 1133 formed by the second rib 1131 and improving the heat exchange efficiency of the heat exchanger 1.

[0040] Of course, this embodiment can also be based on Embodiment 1, where the first turbulence portion 20 includes a first protrusion 22 and a first recess 21, the first sidewall 311 includes the first recess 21, and the second sidewall 312 includes the first protrusion 22. Both the first recess 21 and the second protrusion 24 alter the flow path of the medium in the recess formed by the second rib 1131, increasing the resistance to the flow of the medium within the first recess 1133 formed by the second rib 1131, thereby reducing the bypass capacity of the first recess 1133 formed by the second rib 1131, improving the heat exchange efficiency of the heat exchanger 1, and along the direction perpendicular to the extension of the second rib 1131, the first sidewall 311 is closer to the first rib 1132 than the second sidewall 312. The wall 311 includes a first recess 21, which is recessed relative to the first base 3111 towards the second sidewall 312, i.e., the first recess 21 is recessed relative to the first base 3111 towards the direction away from the first rib 1132, thereby increasing the distance between the second rib 1131 and the first rib 1132, increasing the welding area of ​​the first plate 112 and the second plate 113, and improving the connection strength of the heat exchanger 1. Along the direction perpendicular to the extension of the second rib 1131, the first protrusion 22 coincides with the first recess 21. Since the first recess 21 is recessed into the first recess 1133 formed by the second rib 1131, i.e., the distance between the first sidewall 311 and the second sidewall 312 at the first recess 21 is increased. The distance between the first sidewall 311 and the second sidewall 312 at the first protrusion 22 decreases, while the first protrusion 22 protrudes outward from the first recess 1133 formed by the second rib 1131. That is, the distance between the first sidewall 311 and the second sidewall 312 at the first protrusion 22 increases, restricting the extension direction perpendicular to the second rib 1131. The first protrusion 22 coincides with the first recess 21, so that the distance between the first sidewall 311 and the second sidewall 312 will not be too small due to the recess of the first recess 21, nor too large due to the protrusion of the first protrusion 22. Since the second rib 1131 is fixedly connected to the first plate 112, the top surface of the protruding second rib 1131 is fixedly connected to the first plate 112. The width of the top surface of the protruding second rib 1131 is equal to the width of the first sidewall 311 and the second sidewall 312. The spacing between the walls 312 is related. If the spacing between the first sidewall 311 and the second sidewall 312 is too small, it will affect the welding strength between the second rib 1131 and the first plate 112. If the spacing between the first sidewall 311 and the second sidewall 312 is too large, it will affect the bypass volume of the second rib 1131. Therefore, the spacing between the first sidewall 311 and the second sidewall 312 is limited so that it is not too small due to the depression of the first recess 21, thereby ensuring the welding strength between the second rib 1131 and the first plate 112. It is also not too large due to the protrusion of the first protrusion 22, which would increase the flow cross-sectional area of ​​the first recess 1133 formed by the second rib 1131, thereby increasing the bypass volume of the recess formed by the second rib 1131.

[0041] Example 3

[0042] like Figure 10 , Figure 11The third embodiment shown is based on the above two embodiments and specifically discloses a direction extending perpendicular to the first rib 1132. The first rib 1132 includes a third sidewall 321 and a fourth sidewall 322. The second plate 113 includes a first plate portion 1134. The third sidewall 321 and the fourth sidewall 322 are walls that are not parallel to the surface of the first plate portion 1134. Since the first rib 1132 protrudes relative to the first plate portion 1134 in a first direction, along the first direction, the first rib 1132 forms a second protrusion 1135 on one side of the second plate 113 and a first recess 1133 on the other side of the second plate 113. Since the second plate 113 includes the second rib 1131 and the first rib... 1132, the second rib 1131 and the first rib 1132 together form the second protrusion 1135 and the first depression 1133. Therefore, the second protrusion 1135 includes the portion formed by the second rib 1131 and the portion formed by the first rib 1132. The portion formed by the first rib 1132 is described as the second protrusion 1135 formed by the first rib 1132. The first depression 1133 includes the portion formed by the second rib 1131 and the portion formed by the first rib 1132. The portion formed by the first rib 1132 is described as the first depression 1133 formed by the first rib 1132. Furthermore, since along the first direction, the first rib 1132 and the first plate 1... The first plate portion 1134 of 12 is fixedly connected, that is, the second protrusion 1135 formed by the first rib portion 1132 is fixedly connected to the first plate 112. The first rib portion 1132 acts as a barrier to the medium. The medium flowing in the first heat exchange channel 12 is blocked by the first rib portion 1132, and the medium flows around the first rib portion 1132, increasing the flow path length of the medium, thereby increasing the heat exchange efficiency of the heat exchanger 1. The first rib portion 1132 forms a first recess 1133 on the other side of the second plate 113. The medium flowing in the second heat exchange channel 13 flows into the first recess 1133 formed by the first rib portion 1132 on the second plate 113 and flows along the extending direction of the first rib portion 1132. The medium flowing in the first recess 1133 is not turbulent by the turbulence structure 14, which would reduce the heat exchange efficiency of the heat exchanger 1. The first turbulence portion 20 includes a second recess 23, and the third sidewall 321 includes a second recess 23 and a third base 3211. The second recess 23 is recessed relative to the third base 3211 towards the fourth sidewall 322. Since the first rib 1132 protrudes from one side of the second plate 113 to form the portion of the first recess 1133, and forms the portion of the second protrusion 1135 on the other side of the second plate 113, the wall portion forming the first rib 1132 includes the third sidewall 321 and the fourth sidewall 322. The first recess 1133 formed by the first rib 1132 is located between the third sidewall 321 and the fourth sidewall 322.The second recess 23 of the third sidewall 321 is recessed towards the fourth sidewall 322, that is, the second recess 23 is recessed into the first recess 1133 formed by the first rib 1132, reducing the flow cross-sectional area of ​​the first recess 1133 formed by the first rib 1132, making it more difficult for the medium to flow into the first recess 1133 formed by the first rib 1132, and reducing the amount of medium flowing into the first recess 1133 formed by the first rib 1132, thereby reducing the amount of medium entering the first recess 1132 formed by the first rib 1132. The bypass flow of the first recess 1133 is reduced, thereby improving the heat exchange efficiency of the heat exchanger 1. Furthermore, because the second recess 23 is recessed into the first recess 1133 formed by the first rib 1132, the flow cross-sectional area of ​​the first recess 1133 formed by the first rib 1132 is reduced. This increases the resistance to the flow of the medium within the first recess 1133 formed by the first rib 1132, thereby reducing the bypass flow of the first recess 1133 formed by the first rib 1132 and improving the heat exchange efficiency of the heat exchanger 1.

[0043] Example 4

[0044] like Figures 12-14 The fourth embodiment shown in this embodiment specifically discloses that the first turbulence portion 20 includes a second protrusion 24, and the fourth sidewall 322 includes the second protrusion 24 and the fourth base 3221. The second protrusion 24 protrudes away from the third sidewall 321 relative to the fourth base 3221. Since the first rib portion 1132 protrudes from one side of the second plate 113 to form a first recess 1133, a second protrusion 1135 is formed on the other side of the second plate 113. The wall portion forming the first rib portion 1132 includes the third sidewall 321 and the fourth sidewall 322. The first rib portion 1132 forms... The first recess 1133 is located between the third sidewall 321 and the fourth sidewall 322. The second protrusion 24 protrudes away from the third sidewall 321 relative to the fourth base 3221. That is, the second protrusion 24 protrudes outward from the first recess 1133 formed by the first rib 1132. The flow cross-sectional area of ​​the first recess 1133 formed by the first rib 1132 changes, increasing the resistance of the medium flowing in the first recess 1133 formed by the first rib 1132, thereby reducing the bypass volume of the first recess 1133 formed by the first rib 1132 and improving the heat exchange efficiency of the heat exchanger 1.

[0045] Of course, this embodiment can also be based on Embodiment 3, where the first turbulence portion 20 includes a second concave portion 23 and a second convex portion 24, the third sidewall 321 includes a second concave portion 23, and the fourth sidewall 322 includes a second convex portion 24. Both the second concave portion 23 and the second convex portion 24 alter the flow path of the medium in the concave portion formed by the first rib 1132, increasing the resistance to the flow of the medium within the first recess 1133 formed by the first rib 1132, thereby reducing the bypass volume of the first recess 1133 formed by the first rib 1132, improving the heat exchange efficiency of the heat exchanger 1, and along the direction perpendicular to the first rib 1132, the third sidewall 321 is closer to the second rib 1131 than the fourth sidewall 322. The wall 321 includes a second recess 23, which is recessed relative to the third base 3211 towards the fourth sidewall 322. That is, the second recess 23 is recessed relative to the third base 3211 towards the direction away from the second rib 1131, thereby increasing the distance between the second rib 1131 and the first rib 1132, increasing the welding area of ​​the first plate 112 and the second plate 113, and improving the connection strength of the heat exchanger 1. Along a direction perpendicular to the first rib 1132, the second protrusion 24 coincides with the second recess 23. Since the second recess 23 is recessed into the first recess 1133 formed by the first rib 1132, the distance between the third sidewall 321 and the fourth sidewall 322 at the second recess 23 is... The distance between the third sidewall 321 and the fourth sidewall 322 at the second protrusion 24 is reduced, while the second protrusion 24 protrudes outward from the first recess 1133 formed by the first rib 1132. That is, the distance between the third sidewall 321 and the fourth sidewall 322 at the second protrusion 24 is increased, which restricts the direction of extension perpendicular to the first rib 1132. The second protrusion 24 coincides with the second recess 23, so that the distance between the third sidewall 321 and the fourth sidewall 322 will not be too small due to the recess of the second recess 23, nor too large due to the protrusion of the second protrusion 24. Since the first rib 1132 is fixedly connected to the first plate 112, the top surface of the protruding first rib 1132 is fixedly connected to the first plate 112. The width of the top surface of the protruding first rib 1132 is equal to the width of the third sidewall 321 and the fourth sidewall 322. The spacing between the two sides is related to the fact that if the spacing between the third sidewall 321 and the fourth sidewall 322 is too small, it will affect the welding strength of the first rib 1132 and the first plate 112. If the spacing between the third sidewall 321 and the fourth sidewall 322 is too large, it will affect the bypass volume of the first rib 1132. Therefore, the spacing between the third sidewall 321 and the fourth sidewall 322 is limited to prevent it from being too small due to the depression of the second recess 23, so as to ensure the welding strength of the first rib 1132 and the first plate 112. It is also prevented from being too large due to the protrusion of the second protrusion 24, which would increase the flow cross-sectional area of ​​the first recess 1133 formed by the first rib 1132, thereby increasing the bypass volume of the first recess 1133 formed by the first rib 1132.

[0046] Example 5

[0047] like Figures 15-19The fifth embodiment shown is based on the above embodiments and specifically discloses a first plate 112 including a first side 1123 and a second side 1124. The first plate 112 includes a first edge 1125. A third rib 1121 extends from the first side 1123 to the second side 1124. The third rib 1121 is fixedly connected to the first edge 1125 located on the first side 1123. There is a gap between the third rib 1121 and the first edge 1125 located on the second side 1124. Since the third rib 1121 is fixedly connected to the first edge 1125 of the first side 1123 and has a gap with the first edge 1125 of the second side 1124, the medium flows in the second heat exchange channel 13. A plate 112 is blocked at its first side 1123 by a third rib 1121, and passes around the third rib 1121 at the gap between the third rib 1121 and the first edge 1125 of the second side 1124. A second plate 113 includes a third side 1136 and a fourth side 1137. The first side 1123 of the first plate 112 and the third side 1136 of the second plate 113 are located on the same side of the heat exchanger 1. The second side 1124 of the first plate 112 and the fourth side 1137 of the second plate 113 are also located on the same side of the heat exchanger 1. The second plate 113 includes a second edge 1138 and a connecting portion 1139. The end of the connecting portion 1139 near the fourth side 1137 is fixed to the second edge 1138. The connecting part 1139 is fixedly connected to the second rib 1131 at one end near the third side 1136 and to the first rib 1132 at the other end near the third side 1136. Since the connecting part 1139 is fixedly connected to the second side 1138 at one end near the fourth side 1137, the medium flows in the first heat exchange channel 12. The medium is blocked by the connecting part 1139 at the fourth side 1137 of the second plate 113. Because the connecting part 1139 is fixedly connected to both the second rib 1131 and the first rib 1132 at one end near the third side 1136, the medium flowing in the first heat exchange channel 12 is continuously blocked by the connecting part 1139 and the second rib 1131 or the connecting part 1139 and the first rib 1132. The obstruction of 132, and due to the spacing between the second rib 1131 and the second edge 1138 located on the third side 1136, allows the medium to bypass the second rib 1131 through the spacing between the second rib 1131 and the second edge 1138 located on the third side 1136. Similarly, the spacing between the first rib 1132 and the second edge 1138 located on the third side 1136 allows the medium to bypass the first rib 1132 through the spacing between the first rib 1132 and the second edge 1138 located on the third side 1136. In this embodiment, compared to a direct connection between the second rib 1131 and the second edge 1138, or a direct connection between the first rib 1132 and the second edge 1138,...Since both the second rib 1131 and the first rib 1132 are connected to the connecting portion 1139, and the connecting portion 1139 is fixedly connected to the second side portion 1138, there is only one connection point on the second side portion 1138, namely the connection point between the connecting portion 1139 and the second side portion 1138. This reduces the thinning amount of the second side portion 1138. Furthermore, since the first side 1123 of the first plate 112 and the third side 1136 of the second plate 113 are located on the same side of the heat exchanger 1, and the second side 1124 of the first plate 112 and the fourth side 1137 of the second plate 113 are located on the same side of the heat exchanger 1, the flow directions of the medium flowing in the first heat exchange channel 12 and the medium flowing in the second heat exchange channel 13 are opposite, thus increasing the heat exchange performance of the heat exchanger 1.

[0048] Example 6

[0049] like Figures 1-19 The sixth embodiment shown is based on the previous embodiment and specifically discloses that the second plate 113 includes a groove 1140 extending in a direction perpendicular to the second rib 1131. The groove 1140 is located between the second rib 1131 and the first rib 1132. Since both the second rib 1131 and the first rib 1132 protrude in a first direction, the groove 1140 is formed between the second rib 1131 and the first rib 1132 in a direction perpendicular to the extension of the second rib 1131. 1140 is recessed relative to the second rib 1131 and the first rib 1132. The heat exchanger 1 includes a first barrier portion 30, which includes the second rib 1131, the first rib 1132 and the groove portion 1140. Along the direction perpendicular to the extension of the second rib 1131, the width of the connecting portion 1139 is smaller than the width of the first barrier portion 30. Since the width of the connecting portion 1139 is smaller than the width of the first barrier portion 30, the heat exchange area of ​​the medium at the connecting portion 1139 is larger, thereby increasing the heat exchange efficiency of the heat exchanger 1.

[0050] Example 7

[0051] like Figures 1-19The seventh embodiment shown is based on embodiments five and six. Specifically, it discloses a first plate 112 symmetrical about the third rib 1121, and a second plate 113 including a groove 1140 extending perpendicularly to the second rib 1131. The groove 1140 is located between the second rib 1131 and the first rib 1132. The second plate 113 is symmetrical about the groove 1140. In this embodiment, because the first plate 112 is symmetrical about the third rib 1121 and the second plate 113 is symmetrical about the groove 1140, in the first heat exchange channel 12, the width of the flow cross-sectional area before the medium flows past the second rib 1131 and the first rib 1132 is similar to the width of the flow cross-sectional area after flowing past the second rib 1131 and the first rib 1132. A heat exchange channel 12 includes a first flow channel 121 and a second flow channel 122. That is, the flow cross-sectional area of ​​the first flow channel 121 and the flow cross-sectional area of ​​the second flow channel 122 are the same. It should be noted that due to various factors such as solder melting, the flow cross-sectional area may change, so there may be a certain deviation in the flow cross-sectional area. This should also be understood as the same. Therefore, the heat exchange performance is similar whether the medium flows from the first flow channel 121 to the second flow channel 122 or from the second flow channel 122 to the first flow channel 121. It should be noted that since the heat exchange performance is affected by various factors, the similarity here means that the flow of the medium from the first flow channel 121 to the second flow channel 122 or from the second flow channel 122 to the first flow channel 121 has no substantial impact on the heat exchange performance.

[0052] Example 8

[0053] like Figures 15-19 The eighth embodiment shown is based on the previous embodiment and specifically discloses that a connecting portion 1126 is provided between the third rib portion 1121 and the first side portion 1125 located on the second side 1124. Along the first direction, the groove portion 1140 coincides with the position of the third rib portion 1121, and the connecting portion 1139 coincides with the position of the connecting portion 1126. Since the groove portion 1140 coincides with the position of the third rib portion 1121, the groove portion 1140 is recessed relative to the second rib portion 1131 and the first rib portion 1132. The protrusion directions of the third rib portion 1121, the second rib portion 1131, and the first rib portion 1132 are the same. Therefore, the protruding top of the third rib portion 1121 is fixedly connected to the groove portion 1140.

[0054] Further, along the first direction, the first plate 112 includes a first face 1127 and a second face 1128, and the second plate 113 includes a third face 1141 and a fourth face 1142. The first face 1127 of the first plate 112 faces the fourth face 1142 of an adjacent second plate 113, and the second face 1128 of the first plate 112 faces the third face 1141 of another adjacent second plate 113. The third rib 1121 protrudes along the first direction and forms a first protrusion 16 on the first face 1127 of the first plate 112. On the first face 1127, the first protrusion 16 includes a first connecting surface 11211. The second rib 1131 and the first rib 1132 protrude along the first direction and form a first recess 1133 on the fourth face 1142 of the second plate 113. A protrusion is formed on the fourth face 1142 relative to the second rib 1131 and the first rib 1132. On the fourth face 1142, the groove 1140 includes a second connecting surface 11401 extending in a direction perpendicular to the third rib 1121. The width of the first connecting surface 11211 is less than or equal to the width of the second connecting surface 11401. Compared to the width of the first connecting surface 11211 being greater than the width of the second connecting surface 11401, since the first protrusion 16 includes the first connecting surface 11211, setting the width of the first connecting surface 11211 to be less than or equal to the width of the second connecting surface 11401 reduces the width of the third rib 1121 along the direction perpendicular to the third rib 1121. With the area of ​​the first plate 112 remaining unchanged, reducing the width of the third rib 1121 increases the area of ​​the first plate 112 for heat exchange, thereby improving the heat exchange efficiency of the heat exchanger 1.

[0055] The technical features of the above-described technical solutions can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above-described technical solutions are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0056] The above-described technical solutions only illustrate several embodiments of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications without departing from the concept of this utility model, and these modifications all fall within the protection scope of this utility model.

Claims

1. A heat exchanger (1), characterized in that The first plate (112) and the second plate (113) are arranged in a stack, the second plate (113) comprises a first rib (1132), a second rib (1131) and a first plate portion (1134), the second rib (1131) and the first rib (1132) protrude relative to the first plate portion (1134), the stacking direction of the first plate (112) and the second plate (113) is defined as a first direction, along the first direction, the protruding directions of the second rib (1131) and the first rib (1132) are the same, along the first direction, the second rib (1131) and the first rib (1132) form a first recess (1133) on one side of the second plate (113), the second rib (1131) and / or the first rib (1132) comprises a first spoiler portion (20), the first spoiler portion (20) is located in the first recess (1133).

2. The heat exchanger (1) according to claim 1, characterized in that Along a direction perpendicular to the extension direction of the second rib (1131), the second rib (1131) comprises a first side wall (311) and a second side wall (312), the first spoiler portion (20) comprises a first recess portion (21), the first side wall (311) comprises the first recess portion (21) and a first base portion (3111), the first recess portion (21) is recessed relative to the first base portion (3111) towards the second side wall (312), and / or, along a direction perpendicular to the extension direction of the second rib (1131), the second rib (1131) comprises a first side wall (311) and a second side wall (312), the first spoiler portion (20) comprises a first protrusion portion (22), the second side wall (312) comprises the first protrusion portion (22) and a second base portion (3121), the first protrusion portion (22) is protruded relative to the second base portion (3121) away from the first side wall (311).

3. The heat exchanger (1) according to claim 2, characterized in that The first side wall (311) comprises the first recess portion (21), the second side wall (312) comprises the first protrusion portion (22), along a direction perpendicular to the extension direction of the second rib (1131), the first side wall (311) is closer to the first rib (1132) than the second side wall (312), along a direction perpendicular to the extension direction of the second rib (1131), the first protrusion portion (22) coincides with the first recess portion (21).

4. A heat exchanger (1) according to any one of claims 1-3, characterized in that The first rib (1132) comprises a third side wall (321) and a fourth side wall (322) in a direction perpendicular to the extension direction of the first rib (1132), the first rib (1132) comprises a second concave part (23), the third side wall (321) comprises the second concave part (23) and a third base (3211), the second concave part (23) is recessed relative to the third base (3211) towards the fourth side wall (322), and / or the first rib (1132) comprises a third side wall (321) and a fourth side wall (322) in a direction perpendicular to the extension direction of the first rib (1132), the first rib (1132) comprises a second convex part (24), the fourth side wall (322) comprises the second convex part (24) and a fourth base (3221), the second convex part (24) is convex relative to the fourth base (3221) away from the third side wall (321).

5. The heat exchanger (1) according to claim 4, characterized in that The third side wall (321) comprises the second concave part (23), the fourth side wall (322) comprises the second convex part (24), the third side wall (321) is closer to the second rib (1131) than the fourth side wall (322) in a direction perpendicular to the extension direction of the first rib (1132), and the second convex part (24) coincides with the second concave part (23) in a direction perpendicular to the extension direction of the first rib (1132).

6. A heat exchanger (1) according to any of claims 1-3, 5, characterized in that The first plate (112) comprises a third rib (1121), the third rib (1121), the second rib (1131) and the first rib (1132) have the same convex direction in the first direction, the third rib (1121) forms a second recess (1122) on one side of the first plate (112), the second recess (1122) is between the second rib (1131) and the first rib (1132) in a direction perpendicular to the extension direction of the third rib (1121), the first plate (112) comprises a second plate part (40), the third rib (1121) is convex relative to the second plate part (40), the recess direction of the second recess (1122) relative to the second plate part (40) is the same as the convex direction of the third rib (1121) relative to the second plate part (40), the third rib (1121) is fixedly connected with the first plate part (1134) of the second plate (113) adjacent to the third rib (1121) in the first direction, the second rib (1131) is fixedly connected with the second plate part (40) of the first plate (112) adjacent to the second rib (1131), and the first rib (1132) is fixedly connected with the second plate part (40) of the first plate (112) adjacent to the first rib (1132).

7. The heat exchanger (1) according to claim 6, characterized in that The first plate (112) comprises a first side (1123) and a second side (1124), the first plate (112) comprises a first edge (1125), the third rib (1121) extends from the first side (1123) to the second side (1124), the third rib (1121) is fixedly connected with the first edge (1125) located at the first side (1123), and a spacing is provided between the third rib (1121) and the first edge (1125) located at the second side (1124); The second plate (113) comprises a third side (1136) and a fourth side (1137), the first side (1123) of the first plate (112) and the third side (1136) of the second plate (113) are located on the same side of the heat exchanger (1), the second side (1124) of the first plate (112) and the fourth side (1137) of the second plate (113) are located on the same side of the heat exchanger (1), the second plate (113) comprises a second edge (1138), the second plate (113) comprises a connecting portion (1139), one end of the connecting portion (1139) close to the fourth side (1137) is fixedly connected with the second edge (1138), and one end of the connecting portion (1139) close to the third side (1136) is fixedly connected with the second rib (1131) and the first rib (1132), a spacing is provided between the second rib (1131) and the second edge (1138) located at the third side (1136), and a spacing is provided between the first rib (1132) and the second edge (1138) located at the third side (1136).

8. The heat exchanger (1) according to claim 7, characterized in that The second plate (113) comprises a groove portion (1140), the groove portion (1140) is located between the second rib (1131) and the first rib (1132) in a direction perpendicular to the extension direction of the second rib (1131), the heat exchanger (1) comprises a first blocking portion (30), the first blocking portion (30) comprises the second rib (1131), the first rib (1132) and the groove portion (1140), and the width of the connecting portion (1139) is less than the width of the first blocking portion (30) in the direction perpendicular to the extension direction of the second rib (1131).

9. - Heat exchanger (1) according to claim 7 or 8, characterized in that The first plate (112) is symmetrical about the third rib (1121), the second plate (113) comprises a groove portion (1140), the groove portion (1140) is located between the second rib (1131) and the first rib (1132) in a direction perpendicular to the extension direction of the second rib (1131), and the second plate (113) is symmetrical about the groove portion (1140).

10. The heat exchanger (1) according to claim 9, characterized in that The third rib portion (1121) has a communication portion (1126) between the first edge portion (1125) on the second side (1124), and along the first direction, the groove portion (1140) is positioned coincident with the third rib portion (1121), and the connection portion (1139) is positioned coincident with the communication portion (1126).

11. Heat exchanger (1) according to claim 10, characterized in that Along the first direction, the first plate (112) includes a first face portion (1127) and a second face portion (1128), and the second plate (113) includes a third face portion (1141) and a fourth face portion (1142), the first face portion (1127) of the first plate (112) is opposite to the fourth face portion (1142) of an adjacent second plate (113), the second face portion (1128) of the first plate (112) is opposite to the third face portion (1141) of another adjacent second plate (113), the third rib portion (1121) protrudes along the first direction, the third rib portion (1121) forms a first protrusion (16) on the first face portion (1127) of the first plate (112), and on the first face portion (1127), the first protrusion (16) includes a first connecting face (11211). The second rib portion (1131) and the first rib portion (1132) protrude along the first direction, the second rib portion (1131) and the first rib portion (1132) form the first recess (1133) on the fourth face portion (1142) of the second plate (113), the groove portion (1140) forms a protrusion relative to the second rib portion (1131) and the first rib portion (1132) on the fourth face portion (1142), and on the fourth face portion (1142), the groove portion (1140) includes a second connecting face (11401), along a direction perpendicular to the extension direction of the third rib portion (1121), the width of the first connecting face (11211) is less than or equal to the width of the second connecting face (11401).

12. The heat exchanger (1) according to claim 4, characterized in that The first plate piece (112) comprises a third rib (1121), the protruding directions of the third rib (1121), the second rib (1131) and the first rib (1132) are same along the first direction, the third rib (1121) forms a second recess (1122) on one side of the first plate piece (112), the recessing direction of the second recess (1122) relative to the second plate part (40) is same with the protruding direction of the third rib (1121) relative to the second plate part (40) along the direction perpendicular to the extension direction of the third rib (1121), the first plate piece (112) comprises a second plate part (40), the third rib (1121) protrudes relative to the second plate part (40), the first plate piece (112) is fixedly connected with the first plate part (1134) of the second plate piece (113) adjacent to the third rib (1121) along the first direction, the second rib (1131) is fixedly connected with the second plate part (40) of the first plate piece (112) adjacent to the second rib (1131), and the first rib (1132) is fixedly connected with the second plate part (40) of the first plate piece (112) adjacent to the first rib (1132).

13. The heat exchanger (1) according to claim 12, characterized in that The first plate piece (112) comprises a first side (1123) and a second side (1124), the first plate piece (112) comprises a first edge part (1125), the third rib (1121) extends from the first side (1123) to the second side (1124), the third rib (1121) is fixedly connected with the first edge part (1125) located on the first side (1123), and a space is arranged between the third rib (1121) and the first edge part (1125) located on the second side (1124). The second plate piece (113) comprises a third side (1136) and a fourth side (1137), the first side (1123) of the first plate piece (112) and the third side (1136) of the second plate piece (113) are located on the same side of the heat exchanger (1), the second side (1124) of the first plate piece (112) and the fourth side (1137) of the second plate piece (113) are located on the same side of the heat exchanger (1), the second plate piece (113) comprises a second edge portion (1138), the second plate piece (113) comprises a connecting portion (1139), one end of the connecting portion (1139) close to the fourth side (1137) is fixedly connected with the second edge portion (1138), one end of the connecting portion (1139) close to the third side (1136) is fixedly connected with the second rib portion (1131) and the first rib portion (1132), the second rib portion (1131) is arranged at a distance from the second edge portion (1138) located on the third side (1136), and the first rib portion (1132) is arranged at a distance from the second edge portion (1138) located on the third side (1136).

14. The heat exchanger (1) according to claim 13, characterized in that The second plate piece (113) comprises a groove portion (1140), and the groove portion (1140) is located between the second rib portion (1131) and the first rib portion (1132) in a direction perpendicular to the extension direction of the second rib portion (1131), the heat exchanger (1) comprises a first blocking portion (30), the first blocking portion (30) comprises the second rib portion (1131), the first rib portion (1132) and the groove portion (1140), and the width of the connecting portion (1139) is less than the width of the first blocking portion (30) in the direction perpendicular to the extension direction of the second rib portion (1131).

15. - Heat exchanger (1) according to claim 13 or 14, characterized in that The first plate piece (112) is symmetrical about the third rib portion (1121), the second plate piece (113) comprises a groove portion (1140), and the groove portion (1140) is located between the second rib portion (1131) and the first rib portion (1132) in a direction perpendicular to the extension direction of the second rib portion (1131), and the second plate piece (113) is symmetrical about the groove portion (1140).

16. The heat exchanger (1) according to claim 15, characterized in that The third rib portion (1121) has a communication portion (1126) between the first edge portion (1125) located on the second side (1124), the groove portion (1140) is located at the same position as the third rib portion (1121) in the first direction, and the connecting portion (1139) is located at the same position as the communication portion (1126).

17. The heat exchanger (1) according to claim 16, characterized in that In the first direction, the first plate piece (112) includes a first face (1127) and a second face (1128), the second plate piece (113) includes a third face (1141) and a fourth face (1142), the first face (1127) of the first plate piece (112) is opposite to the fourth face (1142) of an adjacent second plate piece (113), the second face (1128) of the first plate piece (112) is opposite to the third face (1141) of another adjacent second plate piece (113), the third rib (1121) protrudes in the first direction, the third rib (1121) forms a first protrusion (16) at the first face (1127) of the first plate piece (112), and the first protrusion (16) includes a first connecting face (11211) at the first face (1127); The second rib (1131) and the first rib (1132) protrude in the first direction, the second rib (1131) and the first rib (1132) form the first recess (1133) at the fourth face (1142) of the second plate piece (113), the groove portion (1140) forms a protrusion relative to the second rib (1131) and the first rib (1132) at the fourth face (1142), and the groove portion (1140) includes a second connecting face (11401) at the fourth face (1142), in a direction perpendicular to the extension direction of the third rib (1121), the width of the first connecting face (11211) is less than or equal to the width of the second connecting face (11401).

18. A heat exchanger (1) characterized by The first plate piece (112) and the second plate piece (113) are arranged in a stack, the second plate piece (113) includes a first rib (1132), a second rib (1131) and a first plate portion (1134), the second rib (1131) and the first rib (1132) protrude relative to the first plate portion (1134), the stacking direction of the first plate piece (112) and the second plate piece (113) is defined as a first direction, in the first direction, the protruding directions of the second rib (1131) and the first rib (1132) are the same, in the first direction, the second rib (1131) and the first rib (1132) form a first recess (1133) at one side of the second plate piece (113), the recess direction of the first recess (1133) relative to the first plate portion (1134) is the same as the protruding direction of the second rib (1131) and the first rib (1132) relative to the first plate portion (1134), and the second rib (1131) and / or the first rib (1132) includes a first spoiler portion (20), the first spoiler portion (20) is located at the first recess (1133).

Images