Heat exchanger, air conditioner and vehicle

Abstract

The utility model relates to a heat exchanger, an air conditioner and a vehicle. The heat exchanger comprises a plurality of heat exchange plates which are mutually stacked, four through holes which are mutually spaced are formed in the heat exchange plate located on one side, a flow channel is concavely formed in the attached surface between every two adjacent heat exchange plates, part of the flow channels are communicated with the two through holes in the heat exchange plates, and the other part of the flow channels are communicated with the other two through holes. Projections, on the heat exchange plate, of the two through holes correspondingly communicated with the flow channels are arranged on the two sides of the protruding strips. According to the heat exchanger, the protruding strips are arranged in the flow channels, and the projections of the two through holes correspondingly communicated with the flow channels on the heat exchange plate are located on the two sides of the protruding strips, so that fluid flowing into the flow channels from one through hole needs to bypass the protruding strips to flow into the other through hole, the flowing time of the fluid in the flow channels is prolonged, and the heat exchange efficiency of the heat exchanger is improved.

Description

Technical Field

[0001] The present application relates to the field of heat exchangers, and in particular to a heat exchanger, an air conditioner comprising the heat exchanger, and a vehicle comprising the air conditioner. Background Art

[0002] The heat exchanger usually includes a plurality of heat exchange plates stacked on each other. The surfaces of two adjacent heat exchange plates are concavely provided with flow channels. Part of the flow channels are connected to two through holes on the heat exchange plate on one side, and the other part of the flow channels are connected to the other two through holes on the heat exchange plate on one side. Heat exchange between different fluids can be achieved by injecting different fluids into different flow channels.

[0003] However, since the two through holes connected to the same flow channel are close in distance, the fluid is difficult to be evenly distributed on the surface of the heat exchange plate, which reduces the heat exchange time between the fluids and the heat exchange efficiency. Utility Model Content

[0004] In view of the above-mentioned deficiencies of the prior art, the purpose of the present application is to provide a heat exchanger with improved heat exchange efficiency, an air conditioner including the heat exchanger, and a vehicle including the air conditioner. The specific technical solutions include the following:

[0005] In a first aspect, an embodiment of the present application provides a heat exchanger, comprising a plurality of heat exchange plates stacked on each other, wherein a heat exchange plate on one side is provided with four through holes spaced from each other, and a flow channel is concavely provided on the surfaces of two adjacent heat exchange plates in contact with each other, wherein part of the flow channel is connected to two through holes on the heat exchange plate, and another part of the flow channel is connected to another two through holes;

[0006] Each flow channel is provided with a convex strip, and the projections of two through holes connected to the flow channel on the heat exchange plate are arranged on both sides of the convex strip.

[0007] The heat exchanger of the present application is provided with convex strips in the flow channel, and the projections of the two through holes corresponding to the flow channel on the heat exchange plate are located on both sides of the convex strips, so that the fluid flowing into the flow channel from one through hole needs to bypass the convex strips and flow into the other through hole, thereby increasing the flow time of the fluid in the flow channel, increasing the heat exchange area of ​​the fluid between different flow channels, and thus improving the heat exchange efficiency of the heat exchanger of the present application.

[0008] In one embodiment, along the arrangement direction of the two through holes, the convex strip is close to one through hole and away from the other through hole, wherein the two through holes are two through holes connected to the same flow channel in the heat exchange plate.

[0009] In one embodiment, the extending direction of the convex strip is perpendicular to the arrangement direction of the two through holes.

[0010] In one embodiment, the distance between the convex strip and the midpoint of the line connecting the two through holes is greater than or equal to twice the thickness of the heat exchange plate.

[0011] In one embodiment, the four through holes include two first through holes and two second through holes, the two first through holes are connected through a partial flow channel, and the two second through holes are connected through another partial flow channel; the spacing between the two first through holes is smaller than the spacing between a first through hole and a second through hole; and / or, the spacing between the two second through holes is smaller than the spacing between a second through hole and a first through hole.

[0012] In one embodiment, the flow channel includes a first flow channel and a second flow channel, the two first through holes are connected through each first flow channel, and the two second through holes are connected through each second flow channel.

[0013] In one embodiment, along the thickness direction of the heat exchange plate, the first flow channels and the second flow channels are alternately arranged.

[0014] In one embodiment, each heat exchange plate is provided with four through holes, and along the stacking direction of the heat exchange plates, the through holes between two adjacent heat exchange plates are connected one by one, wherein two through holes are used to communicate with the flow channels between two adjacent heat exchange plates, and the other two through holes are spaced apart from the flow channels between the same two heat exchange plates.

[0015] In one embodiment, a plurality of protrusions are provided in each flow channel, the plurality of protrusions are evenly distributed along the plane direction of the heat exchange plate and are spaced apart from the convex strips, and the plurality of protrusions are used to enhance the turbulent effect on the liquid flowing into the flow channel.

[0016] In one embodiment, the projection of each protrusion on the heat exchange plate is elliptical, and the long axes of the projections of two adjacent protrusions on the heat exchange plate are at an angle.

[0017] In a second aspect, an embodiment of the present application provides an air conditioner, comprising a heat exchanger.

[0018] In a third aspect, an embodiment of the present application provides a vehicle including an air conditioner.

[0019] It can be understood that the air conditioner provided in the second aspect of the present application and the vehicle provided in the third aspect have the beneficial effect of improving the heat exchange efficiency because they adopt the heat exchanger provided in the first aspect of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the structure of a heat exchanger provided in one embodiment of the present application;

[0021] Figure 2 This is an exploded schematic diagram of a heat exchanger provided in one embodiment of the present application;

[0022] Figure 3 A partial cross-sectional schematic diagram of a heat exchanger provided in one embodiment of the present application;

[0023] Figure 4 This is a schematic structural diagram of an end plate provided in one embodiment of the present application;

[0024] Figure 5 This is a structural schematic diagram of a heat exchange mainboard provided in one embodiment of the present application;

[0025] Figure 6 This is a schematic diagram of the planar structure of a heat exchange mainboard provided in one embodiment of the present application;

[0026] Figure 7 This is a schematic diagram of the structure of a base plate provided in an embodiment of the present application. DETAILED DESCRIPTION

[0027] In order to facilitate the understanding of the present application, the present application will be described more fully below with reference to the relevant drawings. The preferred embodiments of the present application are given in the drawings. However, the present application can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present application more thoroughly and comprehensively understood.

[0028] The following descriptions of the embodiments are with reference to the attached diagrams to illustrate specific embodiments that the present application can be used to implement. The serial numbers for the components herein, such as "first", "second", etc., are only used to distinguish the objects described and do not have any order or technical meaning. The "connection" and "coupling" mentioned in the present application, unless otherwise specified, include direct and indirect connections (couplings). The directional terms mentioned in the present application, such as "upper", "lower", "front", "back", "left", "right", "inside", "outside", "side", etc., are only with reference to the directions of the attached drawings. Therefore, the directional terms used are for better and clearer explanation and understanding of the present application, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present application.

[0029] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be fixedly connected, detachably connected, or integrally connected; it can be mechanically connected; it can be directly connected, or indirectly connected through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances. It should be noted that the terms "first", "second", etc. in the specification and claims of this application and the drawings are used to distinguish different objects, rather than to describe a specific order. In addition, the terms "including", "may include", "include", or "may include" used in this application indicate the existence of the corresponding functions, operations, elements, etc. disclosed, and do not limit one or more other functions, operations, elements, etc. In addition, the terms "including" or "include" indicate the existence of the corresponding features, numbers, steps, operations, elements, components, or combinations thereof disclosed in the specification, and do not exclude the existence or addition of one or more other features, numbers, steps, operations, elements, components, or combinations thereof, and are intended to cover non-exclusive inclusions.

[0030] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art to which this application belongs. The terms used herein in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application.

[0031] The present application provides a vehicle, including an air conditioner, wherein the air conditioner includes a heat exchanger, a first heat exchange pipe, and a second heat exchange pipe, wherein the first heat exchange pipe is respectively connected to two communicating through holes of the heat exchanger to inject a first fluid with a higher temperature into the heat exchanger, and the second heat exchange pipe is respectively connected to the other two communicating through holes of the heat exchanger to inject a second fluid with a lower temperature into the heat exchanger.

[0032] In the heat exchanger, the flow channels through which the first fluid and the second fluid flow are spaced apart from each other and exchange heat with each other, so that the second fluid can cool the first fluid. In the air conditioner, the first fluid is usually used to communicate with the external environment, and the second fluid is a refrigerant. That is, in the air conditioner, the heat exchanger reduces the temperature of the first fluid by utilizing the low temperature environment of the second fluid, and outputs the first fluid to the external environment, thereby reducing the temperature of the external environment while avoiding the external environment temperature being too low to affect the user experience.

[0033] It is understandable that in other embodiments, the communication environment of the first fluid and the second fluid can also be other. In other embodiments, the temperature of the first fluid can also be lower than the temperature of the second fluid, that is, the first fluid absorbs the heat of the second fluid, thereby increasing the temperature of the external environment. Exemplarily, the heat exchanger is used in a heating device.

[0034] For details, please refer to Figure 1 The schematic diagram of the structure of the heat exchanger 100 provided in one embodiment of the present application is shown in FIG. Figure 2 The exploded schematic diagram of the heat exchanger 100 provided in one embodiment of the present application is shown in FIG. Figure 3 A partial cross-sectional schematic diagram of a heat exchanger 100 provided in one embodiment of the present application is shown.

[0035] like Figure 1-Figure 3 As shown, the heat exchanger 100 of the present application includes a plurality of heat exchange plates 10 stacked on each other, wherein the heat exchange plates 10 include end plates 11 and heat exchange main plates 12. Along the stacking direction of the heat exchange plates 10, the end plates 11 are the heat exchange plates 10 located on one side, and the heat exchange main plates 12 are the remaining heat exchange plates 10 among all the heat exchange plates 10 except the end plates 11.

[0036] The end plate 11 is provided with four through holes 13 spaced apart from each other. The four through holes 13 are two first through holes 131 and two second through holes 132, the two first through holes 131 are used to communicate with the first heat exchange pipe of the air conditioner, and the two second through holes 132 are used to communicate with the second heat exchange pipe of the air conditioner.

[0037] The surfaces of any two adjacent heat exchange plates 10 that are in contact with each other are concavely provided with flow channels 20 , part of the flow channels 20 are communicated with the two first through holes 131 on the end plate 11 , and the other part of the flow channels 20 are communicated with the two second through holes 132 on the end plate 11 .

[0038] Specifically, Figure 1-Figure 3 As shown, the flow channel 20 is recessed on the surface of each heat exchange main plate 12 , and along the stacking direction of the heat exchange plates 10 , the surfaces of each heat exchange main plate 12 where the flow channel 20 is recessed are located on the same side of each heat exchange main plate 12 .

[0039] For example, Figure 1-Figure 3 As shown, there are three heat exchange mainboards 12, which are respectively the first heat exchange mainboard 121, the second heat exchange mainboard 122 and the third heat exchange mainboard 123. The first heat exchange mainboard 121, the second heat exchange mainboard 122 and the third heat exchange mainboard 123 are stacked in sequence. The surface of the second heat exchange mainboard 122 facing the first heat exchange mainboard 121 is recessed with a first flow channel 21, and the surface of the third heat exchange mainboard 123 facing the second heat exchange mainboard 122 is recessed with a second flow channel 22.

[0040] The first flow channel 21 is in communication with the two first through holes 131, and the second flow channel 22 is in communication with the two second through holes 132. That is, the first fluid in the external first heat exchange pipe can flow into the first flow channel 21 through one first through hole 131, and flow back into the first heat exchange pipe from the other first through hole 131. The second fluid in the external second heat exchange pipe can also flow into the second flow channel 22 through one second through hole 132, and flow back into the second heat exchange pipe from the other second through hole 132.

[0041] Based on the fact that the first fluid in the first flow channel 21 can be spaced apart from the second fluid in the second flow channel 22, and both contact the surfaces of the opposite sides of the second heat exchange main board 122. It can be understood that the first fluid through the first flow channel 21 can achieve heat exchange with the second fluid in the second flow channel 22, thereby achieving the heat exchange function of the heat exchanger 100 of the present application.

[0042] like Figure 1-Figure 3 As shown, each flow channel 20 is provided with a convex strip 14. Along the stacking direction of each heat exchange plate 10, the convex strips 14 arranged in each flow channel 20 are arranged on the same surface of the heat exchange plate 10, so as to prepare each heat exchange plate 10 accordingly.

[0043] When the heat exchange plates 10 are stacked together, the ridges 14 space the corresponding channels 20, thereby increasing the length of the channels 20. The projections of the two through holes 13 corresponding to each channel 20 on the heat exchange plate 10 are arranged on both sides of the ridges 14.

[0044] For example, Figure 2 As shown, for the end plate 11 and the heat exchange main board 12 attached to the end plate 11, the end plate 11 is provided with a convex strip 14 disposed toward the heat exchange main board 12, and the convex strip 14 is disposed between the two second through holes 132. When the end plate 11 is attached to the heat exchange main board 12, the convex strip 14 is also attached to the surface of the heat exchange main board 12 where the flow channel 20 is disposed.

[0045] When the second fluid flows from the first second through hole 132 into the flow channel 20 between the end plate 11 and the heat exchange main plate 12, due to the obstruction of the ridge 14, the second fluid will flow from the first second through hole 132 to the first first through hole 131 along the extension direction of the ridge 14. When the second fluid flows to the area not blocked by the ridge 14, the second fluid will flow from the first first through hole 131 to the second first through hole 131 to bypass the ridge 14 and enter the other side of the ridge 14. The second fluid then flows from the second first through hole 131 to the second second through hole 132 along the extension direction of the ridge 14, and flows out of the end plate 11 from the second second through hole 132. The entire U-shaped loop is completed, and a flow cycle is realized.

[0046] It can be understood that the arrangement of the ridges 14 increases the length of the flow channel 20, so that the fluid flowing into the flow channel 20 needs to bypass the ridges 14 before flowing into the other side of the ridges 14 and flowing out from the through holes 13 on the other side. This increases the flow time of the fluid, which is more conducive to achieving heat exchange between the first fluid and the second fluid.

[0047] Therefore, the heat exchanger 100 of the present application is provided with a convex strip 14 in the flow channel 20, and the projections of the two corresponding through holes 13 connected to the flow channel 20 on the heat exchange plate 10 are located on both sides of the convex strip 14, so that the fluid flowing into the flow channel 20 from one through hole 13 needs to bypass the convex strip 14 and flow into the other through hole 13, thereby increasing the flow time of the fluid in the flow channel 20 and improving the heat exchange efficiency of the heat exchanger 100 of the present application.

[0048] It can be understood that in other embodiments, the flow channels 20 and the convex strips 14 can also be recessed on the end plate 11, and along the stacking direction of the heat exchange plates 10, the arrangement positions of the flow channels 20 and the convex strips 14 can also be located on different surfaces of different heat exchange main boards 12, and adjacent flow channels 20 and the convex strips 14 arranged in the adjacent flow channels 20 can also be arranged on different surfaces of the same heat exchange main board 12. This application does not impose any special restrictions on this.

[0049] For ease of description, Figure 1 In the subsequent figures, the stacking direction of the plurality of heat exchange plates 10 is set to be a first direction 001 , and a second direction 002 and a third direction 003 that are perpendicular to each other are perpendicular to the first direction 001 .

[0050] In one embodiment, the spacing between two first through holes 131 is smaller than the spacing between a first through hole 131 and a second through hole 132, and the spacing between two second through holes 132 is smaller than the spacing between a second through hole 132 and a first through hole 131. It can be understood that the spacing relationship between the first through hole 131 and the second through hole 132, in combination with the convex strip 14 arranged in the flow channel 20, can further improve the heat exchange efficiency of the heat exchanger 100 of the present application.

[0051] For details, please refer to Figure 4 The schematic diagram of the structure of the end plate 11 provided in one embodiment of the present application is shown in FIG. Figure 2 and Figure 3 .

[0052] like Figure 2-Figure 4 As shown, the heat exchange plate 10 is rectangular, and the two first through holes 131 are arranged along the width direction of the heat exchange plate 10 , that is, the arrangement direction of the two first through holes 131 is the third direction 003 .

[0053] The arrangement direction of the two first through holes 131 can cooperate with the ridge 14 set in the first flow channel 21, so that the first fluid flowing into the first flow channel 21 can diffuse along the second direction 002 toward the far end of the ridge 14 after flowing into one of the first through holes 131, bypass the ridge 14 from the other side of the flow channel 20, and then diffuse along the second direction 002 to the other first through hole 131 to flow out.

[0054] Based on the second direction 002 being the length direction of the heat exchange plate 10, it can be understood that setting the arrangement direction of the two first through holes 131 to the third direction 003 can further increase the length of the first flow channel 21, thereby further increasing the flow time of the first fluid in the first flow channel 21, and further improving the heat exchange efficiency of the heat exchanger 100 of the present application.

[0055] At the same time, if Figure 2-Figure 4 As shown, the two second through holes 132 are arranged along the width direction of the heat exchange plate 10 , that is, the arrangement direction of the two second through holes 132 is the third direction 003 .

[0056] The arrangement direction of the two second through holes 132 can cooperate with the ridge 14 set in the second flow channel 22, so that the second fluid flowing into the second flow channel 22 can diffuse along the second direction 002 toward the far end of the ridge 14 after flowing into one second through hole 132, and bypass the ridge 14 from the other side of the flow channel 20, and then diffuse along the second direction 002 to the other second through hole 132 to flow out.

[0057] Based on the second direction 002 being the length direction of the heat exchange plate 10, it can be understood that setting the arrangement direction of the two second through holes 132 to the third direction 003 can further increase the length of the second flow channel 22, thereby further increasing the flow time of the second fluid in the second flow channel 22, and further improving the heat exchange efficiency of the heat exchanger 100 of the present application.

[0058] On the other hand, Figure 2-Figure 4 As shown, the first through holes 131 and the second through holes 132 are arranged along the length direction of the heat exchange plate 10. That is, the arrangement direction of the first through holes 131 and the second through holes 132 is the second direction 002.

[0059] Based on the different temperatures of the first fluid and the second fluid, it is understandable that setting the arrangement direction of the first through hole 131 and the second through hole 132 to the second direction 002 can increase the spacing between the first through hole 131 and the second through hole 132, thereby avoiding the first fluid and the second fluid from exchanging heat before entering the heat exchanger 100 due to the first through hole 131 and the second through hole 132 being too close, thereby ensuring the heat exchange effect of the heat exchanger 100 of the present application.

[0060] It can be understood that in other embodiments, based on the different shapes of the heat exchange plate 10, the arrangement of the two first through holes 131 and the two second through holes 132, and the arrangement of one first through hole 131 and one second through hole 132 can also be other arrangements that conform to the spacing relationship between the first through hole 131 and the second through hole 132.

[0061] In other embodiments, the spacing relationship between the first through hole 131 and the second through hole 132 may be other, and this application does not impose any particular limitation on this.

[0062] See also Figure 5 The structural diagram of the heat exchange mainboard 12 provided in one embodiment of the present application is shown in FIG. Figure 6 The schematic diagram of the planar structure of the heat exchange mainboard 12 provided in one embodiment of the present application is shown in FIG. Figure 2 .

[0063] like Figure 2 , Figure 5 and Figure 6 As shown, each heat exchange main plate 12 is also provided with four through holes 13. Along the first direction 001, each through hole 13 between two adjacent heat exchange plates 10 is connected one by one, wherein two through holes 13 are connected to the flow channel 20 between two adjacent heat exchange plates 10, and the other two through holes 13 are spaced from the flow channel 20 between the same two heat exchange plates 10.

[0064] Among them, Figure 2 , Figure 5 and Figure 6 As shown, for any heat exchange main board 12, the four through holes 13 of the heat exchange main board 12 are also two first through holes 131 and two second through holes 132. Exemplarily, when the flow channel 20 recessed on the heat exchange main board 12 is the first flow channel 21, the two first through holes 131 are arranged in the first flow channel 21, and the two second through holes 132 are arranged outside the first flow channel 21.

[0065] That is, the surface height of the first through hole 131 is lower than the surface height of the second through hole 132, and the surface of the first through hole 131 is spaced apart from the surface of another heat exchange plate 10, and the surface of the second through hole 132 is in contact with the corresponding surface of another heat exchange plate 10.

[0066] For example, when the flow channel 20 recessed on the heat exchange main board 12 is the second flow channel 22 , the two first through holes 131 are disposed outside the second flow channel 22 , and the two second through holes 132 are disposed inside the second flow channel 22 .

[0067] That is, the surface height of the first through hole 131 is higher than the surface height of the second through hole 132, and the surface of the first through hole 131 is in contact with the surface of another heat exchange plate 10, and the surface of the second through hole 132 is spaced from the corresponding surface of another heat exchange plate 10.

[0068] Specifically, Figure 2 and Figure 3 As shown, the first heat exchange main board 121 is attached between the end plate 11 and the second heat exchange main board 122. A second flow channel 22 is formed between the first heat exchange main board 121 and the end plate 11. The first through hole 131 of the first heat exchange main board 121 and the second flow channel 22 are spaced apart from each other, and the surface where the first through hole 131 is provided is attached to the surface of the end plate 11 facing the first heat exchange main board 121, and correspondingly, the second through hole 132 of the first heat exchange main board 121 and the second through hole 132 of the end plate 11 are spaced apart from each other.

[0069] A first flow channel 21 is formed between the first heat exchange main board 121 and the second heat exchange main board 122. The first through hole 131 of the second heat exchange main board 122 is disposed in the first flow channel 21 and is spaced apart from the first through hole 131 of the first heat exchange main board 121. Correspondingly, the second through hole 132 of the second heat exchange main board 122 is spaced apart from the first flow channel 21, and the surface where the second through hole 132 is disposed is in contact with the surface of the first heat exchange main board 121 facing the second heat exchange main board 122.

[0070] That is, part of the first fluid flowing in from the first first through hole 131 of the end plate 11 will directly pass through the first first through hole 131 of the first heat exchange main board 121 and flow into the first flow channel 21 between the first heat exchange main board 121 and the second heat exchange main board 122, and pass through the second first through hole 131 of the first heat exchange main board 121 via the first flow channel 21 and flow out from the second first through hole 131 of the end plate 11. Another part of the first fluid will continue to flow downward through the first first through hole 131 of the second heat exchange main board 122, and after completing the heat exchange, flow into the second first through hole 131 of the end plate 11 from the second first through hole 131 of the second heat exchange main board 122.

[0071] A portion of the second fluid flowing in from the first second through hole 132 of the end plate 11 will directly flow into the second flow channel 22 between the end plate 11 and the first heat exchange main board 121, and will flow out from the second second through hole 132 of the end plate 11. Another portion of the second fluid will continue to flow downward through the first second through hole 132 of the first heat exchange main board 121 and the second heat exchange main board 122, and after completing the heat exchange, will sequentially pass through the second second through hole 132 of the second heat exchange main board 122 and the second second through hole 132 of the first heat exchange main board 121 and flow into the second first through hole 131 of the end plate 11.

[0072] Along the first direction 001, the first flow channels 21 and the second flow channels 22 are alternately arranged. The first fluid flowing in from the first through hole 131 of the end plate 11 will sequentially pass through the heat exchange main board 12 provided with the second flow channels 22, and respectively flow into the heat exchange main board 12 provided with the first flow channels 21. The second fluid flowing in from the second through hole 132 of the end plate 11 will sequentially pass through the heat exchange main board 12 provided with the first flow channels 21, and respectively flow into the heat exchange main board 12 provided with the second flow channels 22.

[0073] It can be understood that the alternating arrangement of the first flow channel 21 and the second flow channel 22 can further increase the heat exchange time of the fluid in the heat exchanger 100 of the present application while ensuring that the first fluid in each first flow channel 21 can achieve heat exchange with the second fluid in at least one second flow channel 22, thereby further improving the heat exchange efficiency of the heat exchanger 100 of the present application.

[0074] In one embodiment, if Figure 2-Figure 6 As shown, two positioning protrusions 10a are protruded on the flow channel 20 of each heat exchange main board 12, and two through holes 13 spaced apart from the flow channel 20 in each heat exchange main board 12 are respectively arranged on the surface of one positioning protrusion 10a. And the projection of each positioning protrusion 10a on the heat exchange plate 10 affixed thereto accommodates another through hole 13, so as to ensure complete sealing between two adjacent heat exchange plates 10.

[0075] In one embodiment, each heat exchange plate 10 is a sheet metal part, and each heat exchange plate 10 is manufactured by a stamping process to form structures such as the convex strips 14 .

[0076] In one embodiment, if Figure 2-Figure 6 As shown, along the third direction 003, the convex strip 14 is close to one through hole 13 and away from another through hole 13. That is, there is a distance between the convex strip 14 and the central axis of the rectangular heat exchange plate 10. For any two adjacent heat exchange plates 10, the positions of the convex strips 14 of each heat exchange plate 10 are symmetrical relative to the central axis.

[0077] When the convex strips 14 protrude toward one surface, there are grooves on the other surface of the heat exchange plate 10. It can be understood that the convex strips 14 are arranged on one side of the central axis so that when the heat exchange plates 10 are fitted together, the convex strips 14 on each heat exchange plate 10 can fit with the surface of the corresponding heat exchange plate 10, preventing the convex strips 14 from being difficult to connect with another heat exchange plate 10 due to the alignment of the positions of the convex strips 14, and avoiding the situation where the fluid directly flows out through the gap between the convex strips 14 and the surface of the heat exchange plate 10, thereby ensuring the convex strips 14 to improve the heat exchange efficiency of the heat exchanger 100 of the present application.

[0078] It is understandable that in other embodiments, when the heat exchange plate 10 is prepared by other processes, the convex strips 14 can be arranged at other positions that can fit with another heat exchange plate 10, and the present application does not impose any particular limitation on this.

[0079] In one embodiment, if Figure 2-Figure 6 As shown, the extension direction of the ridge 14 is the second direction 002, so as to reduce the influence of the setting position of the ridge 14 on the flow rate of the fluid on the two opposite sides of the ridge 14, and further improve the heat exchange efficiency of the heat exchanger 100 of the present application.

[0080] It is understandable that in other embodiments, the extension direction of the convex strip 14 may also be other extension directions that can achieve adhesion with another heat exchange plate 10. The present application does not impose any particular limitation on this.

[0081] In one embodiment, the distance between the convex strip 14 and the midpoint of the line connecting the two first through holes 131 or the two second through holes 132 is greater than or equal to twice the thickness of the heat exchange plate 10. That is, the distance between the convex strip 14 and the central axis is greater than or equal to twice the thickness of the heat exchange plate 10.

[0082] When the distance between the ridge 14 and the central axis is less than twice the thickness of the heat exchange plate 10, the contact area between the ridge 14 and the other heat exchange plate 10 is relatively small, which is not conducive to achieving the connection between the ridge 14 and the other heat exchange plate 10. There may be a possibility of a gap between the ridge 14 and the other heat exchange plate 10, resulting in part of the fluid flowing out directly through the gap, thereby affecting the effect of the ridge 14 on improving the heat exchange effect of the heat exchanger 100 of the present application.

[0083] That is, the setting that the distance between the convex strip 14 and the central axis is greater than or equal to twice the thickness of the heat exchange plate 10 can further achieve the blocking effect of the convex strip 14 on the fluid, and further ensure the improvement effect of the convex strip 14 on the heat exchange effect of the heat exchanger 100 of the present application.

[0084] In one embodiment, if Figure 2-Figure 6 As shown, the convex strip 14 includes a main body 141 and a protruding portion 142. The main body 141 extends along the second direction 002, and the protruding portion 142 is disposed on opposite sides of the main body 141 and extends toward the opposite sides of the main body 141 along the third direction 003 respectively.

[0085] It can be understood that the setting of the protrusion 142 enables the fluid flowing into the flow channel 20 to be blocked by the protrusion 142 when flowing to the protrusion 142, and the flow direction of the fluid is changed, thereby enhancing the flow disturbance effect on the fluid in the flow channel 20, further improving the flow efficiency of the fluid in the flow channel 20, increasing the flow area, and further improving the heat exchange efficiency of the heat exchanger 100 of the present application.

[0086] In one embodiment, if Figure 2-Figure 6 As shown, each flow channel 20 is provided with a plurality of protrusions 15, each protrusion 15 is evenly distributed along the plane of the heat exchange plate 10, and is spaced apart from the convex strips 14. It can be understood that the provision of a plurality of protrusions 15 can further enhance the turbulence effect on the fluid in the flow channel 20, thereby further enhancing the heat exchange efficiency of the heat exchanger 100 of the present application.

[0087] Specifically, the plurality of protrusions 15 include a plurality of first protrusions 151 and a plurality of second protrusions 152. The first protrusions 151 are evenly distributed between the first through holes 131 and the second through holes 132, and along the third direction 003, each first protrusion 151 in each row is arranged between two first protrusions 151 in an adjacent row. That is, each two adjacent first protrusions 151 are arranged in a staggered manner.

[0088] It can be understood that the staggered arrangement of the multiple first protrusions 151 can further enhance the flow disturbance effect of the first protrusions 151 on the fluid in the flow channel 20 , and further enhance the heat exchange efficiency of the heat exchanger 100 of the present application.

[0089] The second protrusion 152 is disposed at the outer edge of the through hole 13, and the projection area of ​​the second protrusion 152 is larger than the projection area of ​​the first protrusion 151. This can achieve the turbulence effect on the fluid in the flow channel 20 while enhancing the supporting effect of the protrusion 15 on the adjacent heat exchange plate 10, thereby ensuring the structural stability of the heat exchanger 100 of the present application.

[0090] In one embodiment, if Figure 2-Figure 6 As shown, the projection of the first protrusion 151 on the heat exchange plate 10 is elliptical, and along the third direction 003, the long axes of the projections of two adjacent first protrusions 151 on the heat exchange plate 10 are at an angle, so as to further enhance the turbulence effect on the fluid in the flow channel 20 and further enhance the heat exchange efficiency of the heat exchanger 100 of the present application.

[0091] In one embodiment, if Figure 2-Figure 6 As shown, the projection of the second protrusion 152 on the heat exchange plate 10 is in an oval shape.

[0092] It is understandable that in other embodiments, the shape, quantity and distribution of the first protrusion 151 and the second protrusion 152 may be other shapes, and the present application does not impose any particular limitation on this.

[0093] In one embodiment, if Figure 2-Figure 6As shown, the heat exchange plate 10 includes a plate body 16 and a side wall 17. A flow channel 20 is recessed on one side of the plate body 16, and the side wall 17 surrounds the outer edge of the plate body 16 and extends toward the side of the plate body 16 where the flow channel 20 is not provided, so as to fit with the side wall 17 of the adjacent heat exchange plate 10 and be fixedly connected as a whole. Thus, while ensuring the connection effect of the heat exchanger 100 of the present application, the connection strength of the heat exchanger 100 of the present application is also ensured.

[0094] In one embodiment, if Figure 2-Figure 6 As shown, a shielding portion 171 is provided on the side wall 17, and the shielding portion 171 extends in a direction away from the flow channel 20, and along the third direction 003, the width of the shielding portion 171 is greater than the width of the convex strip 14. The shielding portion 171 is used to fit with the end of the convex strip 14.

[0095] The arrangement of the convex strip 14 will result in a groove on the other side of the heat exchange plate 10. It is understandable that the arrangement of the shielding portion 171 can seal the convex strip 14, preventing the fluid from flowing out directly through the end of the convex strip 14, thereby affecting the heat exchange function of the heat exchanger 100 of the present application.

[0096] It can be understood that the shape of each heat exchange main board 12 in the heat exchanger 100 of the present application can be set to be the same. When installing each heat exchange main board 12, two adjacent heat exchange main boards 12 can be rotated 180° for installation, thereby realizing the heat exchange function of the heat exchanger 100 of the present application.

[0097] See also Figure 7 The schematic diagram of the structure of the bottom plate 30 provided in one embodiment of the present application is shown in FIG. Figure 1 and Figure 2 .

[0098] like Figure 1 , Figure 2 and Figure 7 As shown, the heat exchanger 100 of the present application further includes a bottom plate 30 , wherein the bottom plate 30 is attached to a side of the heat exchange main plate 12 away from the end plate 11 , and each heat exchange main plate 12 is located between the bottom plate 30 and the end plate 11 .

[0099] The bottom plate 30 includes a bottom plate body 31 and two bosses 32, wherein the two bosses 32 are convexly arranged on the bottom plate body 31 and extend toward the heat exchange plate 10. Since each heat exchange plate 10 is provided with four through holes 13, and the setting planes of two through holes 13 are lower than the setting planes of the other two through holes 13. It can be understood that when the bottom plate 30 is fitted with the heat exchange main plate 12, the surfaces of the two through holes 13 facing the bottom plate 30 are fitted with the surface of the bottom plate body 31, thereby achieving sealing of the two through holes 13. The surfaces of the other two through holes 13 facing the bottom plate 30 are respectively fitted with the surface of a boss 32, thereby achieving sealing of the two through holes 13.

[0100] That is, the setting of the bottom plate 30 realizes the sealing of the four through holes 13 of the heat exchange plate 10 located on the other side of the end plate 11, thereby ensuring the relative sealing of the first flow channel 21 and the second flow channel 22 in the heat exchanger 100 of the present application, and ensuring the heat exchange function of the heat exchanger 100 of the present application.

[0101] It should be understood that the terms "first", "second", etc. are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the embodiments of the present application, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0102] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples" or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0103] It should be understood that the application of the present application is not limited to the above examples. For ordinary technicians in the field, they can make improvements or changes based on the above description, and all these improvements and changes should fall within the scope of protection of the claims attached to this application. Ordinary technicians in the field can understand that all or part of the processes of the above embodiments are implemented, and equivalent changes made according to the claims of this utility model still fall within the scope covered by this utility model.

Claims

1. A heat exchanger, characterized in that: It comprises a plurality of heat exchange plates stacked on each other, the heat exchange plate on one side is provided with four through holes spaced from each other, a flow channel is concavely provided on the surfaces of the adjacent two heat exchange plates, part of the flow channel is communicated with two through holes on the heat exchange plate, and another part of the flow channel is communicated with the other two through holes; A convex strip is provided in each of the flow channels, and the projections of the two through holes corresponding to the flow channels in communication on the heat exchange plate are arranged on both sides of the convex strip.

2. The heat exchanger according to claim 1, characterized in that: Along the arrangement direction of the two through holes, the convex strip is close to one through hole and away from the other through hole, wherein the two through holes are two through holes connected to the same flow channel in the heat exchange plate.

3. The heat exchanger according to claim 2, characterized in that: The extending direction of the convex strip is perpendicular to the arrangement direction of the two through holes.

4. The heat exchanger according to claim 2, characterized in that: The distance between the convex strip and the midpoint of the line connecting the two through holes is greater than or equal to twice the thickness of the heat exchange plate.

5. The heat exchanger according to any one of claims 1 to 4, characterized in that: The four through holes include two first through holes and two second through holes, the two first through holes are connected through a part of the flow channel, and the two second through holes are connected through another part of the flow channel; The distance between two of the first through holes is smaller than the distance between one of the first through holes and one of the second through holes; and / or the distance between two of the second through holes is smaller than the distance between one of the second through holes and one of the first through holes.

6. The heat exchanger according to claim 5, characterized in that The flow channel includes a first flow channel and a second flow channel, the two first through holes are connected through the first flow channels, and the two second through holes are connected through the second flow channels.

7. The heat exchanger according to claim 6, characterized in that Along the thickness direction of the heat exchange plate, the first flow channels and the second flow channels are alternately arranged.

8. The heat exchanger according to any one of claims 1 to 4, characterized in that: Each of the heat exchange plates is provided with four through holes. Along the stacking direction of the heat exchange plates, the through holes between two adjacent heat exchange plates are connected one by one, two of which are used to communicate with the flow channel between two adjacent heat exchange plates, and the other two through holes are spaced apart from the flow channel between the same two heat exchange plates.

9. The heat exchanger according to any one of claims 1 to 4, characterized in that: A plurality of protrusions are protruding from each of the flow channels. The plurality of protrusions are evenly distributed along the plane direction of the heat exchange plate and are spaced apart from the convex strips. The plurality of protrusions are used to enhance the turbulent effect on the liquid flowing into the flow channels.

10. The heat exchanger according to claim 9, characterized in that The projection of each protrusion on the heat exchange plate is elliptical, and the major axes of the projections of two adjacent protrusions on the heat exchange plate have an included angle.

11. An air conditioner, characterized in that: Comprising the heat exchanger according to any one of claims 1 to 10.

12. A vehicle, characterized in that: Comprising the air conditioner as claimed in claim 11.

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