Heat exchanger core structure, heat exchanger and vehicle

Abstract

The utility model relates to the technical field of heat exchange, and particularly provides a heat exchanger core body structure, a heat exchanger and a vehicle, the heat exchanger core body structure comprises a plurality of sheets which are sequentially overlapped together, and a heat exchange medium circulation channel is formed between every two adjacent sheets; the heat exchange medium circulation channel comprises a first channel and a second channel which are alternately arranged in the overlapping direction of the plate sheets, and the volume of the first channel is larger than that of the second channel. The heat exchange efficiency of the heat exchanger can be improved, the energy-saving effect can be achieved, and the using effect of the heat exchanger can be improved.

Description

Technical Field

[0001] The utility model relates to the field of heat exchange, in particular to a heat exchanger core structure, a heat exchanger and a vehicle. Background Art

[0002] In the related art, in the field of heat exchange, heat exchangers are generally used to exchange heat between different media. Taking the frequently used plate heat exchanger as an example, the core of the plate heat exchanger is generally composed of multiple layers of plates stacked on each other. The edges of the plates are usually flanged, and adjacent plates are welded through the flanges on all sides to form channels for the heat exchange medium to flow between the plates, and each plate has an inlet and an outlet for the heat exchange medium to enter and exit the channel.

[0003] In vehicle thermal management systems, particularly those of new energy vehicles equipped with battery packs, plate heat exchangers, such as battery coolers, are often used to exchange heat between the refrigerant and the coolant. However, existing heat exchangers, such as battery coolers, still suffer from low heat exchange efficiency between the refrigerant and the coolant, hindering their effectiveness. Utility Model Content

[0004] In view of this, the present invention aims to provide a heat exchanger core structure to increase the heat exchange efficiency of the heat exchanger and enhance the use effect of the heat exchanger.

[0005] In order to achieve the above-mentioned purpose, the technical solution of the utility model is achieved as follows:

[0006] A heat exchanger core structure comprises a plurality of plates stacked together in sequence, with heat exchange medium flow channels formed between adjacent plates;

[0007] The heat exchange medium circulation channel includes a first channel and a second channel alternately arranged along the stacking direction of the plates, and the volume of the first channel is greater than the volume of the second channel.

[0008] Furthermore, the plurality of plates include first plates and second plates alternately arranged along the stacking direction;

[0009] The first plate and the second plate are each formed with a plurality of protrusions protruding toward the same side of the plate, a connecting portion connecting the inner cavities of adjacent protrusions, and a plurality of recessed portions formed by the protrusions and the connecting portions;

[0010] The first channel includes the inner cavity of the protrusion on the first plate, the second channel includes the inner cavity of the protrusion on the second plate, and the inner cavity volume of the protrusion on the first plate is greater than the inner cavity volume of the protrusion on the second plate.

[0011] Furthermore, the volume ratio of the first channel to the second channel is between 6:4 and 7:3.

[0012] Furthermore, the top of each of the raised portions on the first plate and the second plate is a quadrilateral or a hexagon, and the bottom of each of the recessed portions on the first plate and the second plate is a quadrilateral or a hexagon.

[0013] Furthermore, the top of each of the protrusions on the first plate and the second plate is a diamond shape, and the bottom of each of the concave portions on the first plate and the second plate is a diamond shape;

[0014] The ratio between the major axis and the minor axis of the top of each of the protrusions on the first plate and the second plate is between 3:1 and 3:2, and the ratio between the major axis and the minor axis of the bottom of each of the recessed portions on the first plate and the second plate is between 3:1 and 3:2;

[0015] The major axis is the longer diagonal line between the top of the protruding portion and the bottom of the recessed portion, and the minor axis is the shorter diagonal line between the top of the protruding portion and the bottom of the recessed portion.

[0016] Furthermore, along the protruding direction, the cross-section of each of the protruding portions on the first plate and the second plate is gradually reduced from the bottom to the top;

[0017] Along the concave direction, the cross-section of each of the concave portions on the first plate and the second plate is gradually reduced from the top to the bottom.

[0018] Furthermore, a draft angle α of each of the protrusions on the first plate and the second plate in the direction of the major axis and a draft angle β in the direction of the minor axis satisfy α≤β.

[0019] Furthermore, each of the connecting portions on the first plate and the second plate is saddle-shaped.

[0020] Compared with the prior art, the present invention has the following advantages:

[0021] The heat exchanger core structure described in the present invention can make the flow resistance of the first channel smaller than the flow resistance of the second channel by making the volume of the first channel larger than the volume of the second channel. In this way, when the heat exchanger is in use, coolant can flow through the first channel and refrigerant can flow through the second channel, so as to utilize the reduction of the flow resistance of the first channel relative to the flow resistance of the second channel, so that the flow space on the refrigerant side is relatively small, the refrigerant flow resistance becomes larger, resulting in an increase in the flow velocity of the refrigerant in the channel, more obvious turbulence, and more conducive to sufficient heat exchange with the coolant. At the same time, it can also make the flow space on the coolant side relatively large, the coolant flow resistance becomes smaller, and the coolant flow velocity is slower, which is not only conducive to sufficient heat exchange with the refrigerant, but also increases the heat exchange between the refrigerant and the coolant, and increases the heat exchange efficiency of the heat exchanger, but also helps to reduce the power of the coolant pump, which can play an energy-saving role and improve the use effect of the heat exchanger.

[0022] Furthermore, forming the raised portions, recessed portions, and connecting portions on the plates not only increases the structural strength of the plates but also facilitates control of the volumes of the first and second channels by controlling the internal volumes of the raised portions on the first and second plates. Adjusting the volume ratio of the first and second channels helps meet the heat exchange requirements between the refrigerant and coolant in the heat exchanger.

[0023] Secondly, by making the top of the raised portion and the bottom of the recessed portion quadrilateral or hexagonal, when the plates are stacked and the raised portions and recessed portions of adjacent plates meet, the contact area between the raised and recessed portions is increased, helping to increase the overall strength of the core structure after stacking. The ratio between the major axis and minor axis at the top of the raised portion and the ratio between the major axis and minor axis at the bottom of the recessed portion help reduce the flow resistance of the first channel.

[0024] Furthermore, gradually decreasing the cross-section of the raised portion from bottom to top, and gradually decreasing the cross-section of the recessed portion from top to bottom, facilitates the stamping of the raised and recessed portions. Controlling the draft angles along the long and short axes of the raised portion further facilitates the stamping of the raised and recessed portions. Providing a saddle-shaped connecting portion facilitates its molding and ensures structural strength at the connecting portion.

[0025] Another object of the present invention is to provide a heat exchanger, wherein the heat exchanger has the heat exchanger core structure as described above, wherein the first channel is a coolant channel, and the second channel is a refrigerant channel.

[0026] In addition, the present invention also provides a vehicle, in which the heat exchanger as described above is provided.

[0027] The heat exchanger and vehicle described in the present invention have the same beneficial effects as the above-mentioned heat exchanger core structure compared with the prior art, and will not be described in detail here. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] The accompanying drawings, which constitute part of the present invention, are intended to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are intended to explain the present invention and do not constitute an improper limitation of the present invention. In the accompanying drawings:

[0029] Figure 1 This is a schematic diagram of the heat exchanger core structure according to an embodiment of the present utility model;

[0030] Figure 2 for Figure 1 An enlarged schematic diagram of a local position in the figure;

[0031] Figure 3 A schematic diagram of a heat exchange medium flow channel according to an embodiment of the present utility model;

[0032] Figure 4 This is a structural diagram of the first plate according to an embodiment of the present utility model;

[0033] Figure 5 This is a schematic structural diagram of the second plate according to an embodiment of the present utility model;

[0034] Figure 6 Schematic diagram of the major axis and minor axis of the protrusion and the recess on the first plate according to an embodiment of the present utility model;

[0035] Figure 7 Schematic diagram of the major axis and minor axis of the protrusion and the recess on the second plate according to an embodiment of the present utility model;

[0036] Figure 8 for Figure 3 a top view of the structure shown;

[0037] Figure 9 for Figure 8 Cross-sectional view along the AA direction (showing the draft angle α in the direction of the long axis of the protrusion);

[0038] Figure 10 for Figure 8 Cross-sectional view along the middle BB direction (showing the draft angle β in the minor axis direction of the protrusion);

[0039] Description of reference numerals:

[0040] 1. Plate; 1a. Opening;

[0041] 11. First plate; 12. Second plate;

[0042] 101, raised portion; 102, recessed portion; 103, connecting portion;

[0043] 10. First channel; 20. Second channel. DETAILED DESCRIPTION

[0044] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features therein can be combined with each other.

[0045] In the following description, specific details such as specific system structures and techniques are provided for purposes of illustration rather than limitation to facilitate a thorough understanding of the embodiments of the present application. However, it will be apparent to those skilled in the art that the present application may be implemented in other embodiments without these specific details. In other cases, detailed descriptions of well-known systems, devices, circuits, and methods are omitted to avoid obscuring the description of the present application with unnecessary detail.

[0046] In the description of this utility model, it should be noted that if terms such as "upper," "lower," "inner," and "outer" appear to indicate orientation or positional relationships, these are based on the orientation or positional relationships shown in the accompanying drawings and are intended solely to facilitate the description of this utility model and simplify the description. They do not indicate or imply that the device or component referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, if terms such as "first" and "second" appear, they are used solely for descriptive purposes and should not be construed as indicating or implying relative importance.

[0047] Furthermore, in the description of this utility model, unless otherwise explicitly defined, the terms "mounted," "connected," "connection," and "connector" should be interpreted broadly. For example, they can refer to fixed, removable, or integral connections; mechanical or electrical connections; direct or indirect connections through an intermediary; and internal communication between two components. Those skilled in the art will understand the specific meanings of these terms in this utility model based on specific circumstances.

[0048] The present invention will be described in detail below with reference to the accompanying drawings and in combination with embodiments.

[0049] Example 1

[0050] This embodiment relates to a heat exchanger core structure (referred to as core structure for short), which is specifically a core structure of a plate heat exchanger. The heat exchanger core structure is beneficial to increasing the heat exchange efficiency of the heat exchanger and can improve the use effect of the heat exchanger.

[0051] In terms of overall structure, combined Figures 1 to 3As shown in , the core structure of this embodiment includes a plurality of plates 1 stacked together in sequence, with heat exchange medium circulation channels formed between adjacent plates 1. The heat exchange medium circulation channels include first channels 10 and second channels 20 alternately arranged along the stacking direction of the plates 1, and the volume of the first channels 10 is greater than that of the second channels 20.

[0052] At this time, as set above, by making the volume of the first channel 10 larger than the volume of the second channel 20, this embodiment can make the flow resistance of the first channel 10 smaller than the flow resistance of the second channel 20. Therefore, when the heat exchanger is in use, the coolant can flow through the first channel 10 and the refrigerant can flow through the second channel 20. That is, even if the first channel 10 is a coolant channel and the second channel 20 is a refrigerant channel, and the flow resistance of the first channel 10 is reduced relative to the flow resistance of the second channel 20, and the flow resistance of the first channel 10 is reduced relative to the flow resistance of the second channel 20, not only can the flow space on the refrigerant side be relatively small, the refrigerant flow resistance be increased, resulting in an increase in the flow velocity of the refrigerant in the channel, more obvious turbulence, and more conducive to sufficient heat exchange with the coolant, but also can especially make the flow space on the coolant side relatively large, the coolant flow resistance be reduced, and the coolant flow velocity be slower, which is also conducive to sufficient heat exchange with the refrigerant.

[0053] In this way, this embodiment can achieve the purpose of increasing the heat exchange between the refrigerant and the coolant, thereby increasing the heat exchange efficiency of the heat exchanger and improving the performance of the heat exchanger. Of course, it should be noted that by reducing the flow resistance of the first channel 10, i.e., the coolant channel, it can also reduce the power of the coolant pump during use, thereby achieving energy conservation.

[0054] Based on the above overall introduction, specifically, the first channel 10 is still used as a coolant channel, and the second channel 20 is used as a refrigerant channel. Figure 1 and Figure 2 As shown in the figure, similar to the plate structure in the existing plate heat exchanger, flanges are also provided along the circumference of the plate 1 of this embodiment, and openings 1a are also provided near the two ends of the plate 1. When multiple plates 1 are stacked to form a core structure, the flanges around the plate 1 are welded together, and the openings 1a at both ends are used to form inlets and outlets connected to the heat exchange medium flow channel, and the openings 1a located at one end of the core structure together constitute the coolant inlet and outlet connected to the first channel 10, and the openings 1a located at the other end of the core structure together constitute the refrigerant inlet and outlet connected to the second channel 20.

[0055] In specific implementation, the welding between the flanges when the above-mentioned plates 1 are stacked, the openings 1a at both ends constitute the inlet and outlet of the coolant or refrigerant, and the convex ribs in the middle of each plate 1 in the core structure form a "U"-shaped channel connecting the inlet and outlet in the heat exchange medium flow channel, etc., all of which can be referred to the relevant settings in the existing plate heat exchanger and will not be repeated here.

[0056] In this embodiment, as a specific implementation form of making the volume of the first channel 10 larger than the volume of the second channel 20, Figure 3 , and combined Figure 4 and Figure 5 As shown in the figure, the multiple plates 1 stacked to form the core structure specifically include a first plate 11 and a second plate 12 alternately arranged along the stacking direction, and the first plate 11 and the second plate 12 are both formed with a plurality of protrusions 101 protruding toward the same side of the plate 1, connecting portions 103 connecting the inner cavities of adjacent protrusions 101, and a plurality of recessed portions 102 formed by the protrusions 101 and the connecting portions 103.

[0057] The first channel 11 includes the inner cavity of the raised portion 101 on the first plate 11 , and the second channel 20 includes the inner cavity of the raised portion 101 on the second plate 12 , and the inner cavity volume of the raised portion 101 on the first plate 11 is greater than the inner cavity volume of the raised portion 101 on the second plate 12 .

[0058] At this time, by forming the protrusion 101, the recessed portion 102 and the connecting portion 103 on the plate 1, it is obvious that compared with a simple flat plate structure, it can increase the structural strength of the plate 1. At the same time, by controlling the inner cavity volume of the protrusion 101 on the first plate 11 and the second plate 12, it is also beneficial to achieve control of the volume of the first channel 10 and the second channel 20, which helps to achieve the design purpose of this embodiment.

[0059] In addition, it is worth noting that, based on the arrangement of the raised portions 101 and the recessed portions 102 on each plate 1, when stacked, the raised portions 101 and the recessed portions 102 on adjacent plates 1 are arranged one-to-one, and still Figure 3 As shown in the figure, for example, when viewed from two adjacent plates 1, the inner cavity of the raised portion 101 on the first plate 11 and the inner cavity of the recessed portion 102 on the corresponding second plate 12 are connected, while when viewed from the other two adjacent plates 1, the top of the raised portion 101 on the first plate 11 and the bottom of the recessed portion 102 on the corresponding second plate 12 are in contact, and they are generally also fixed together by welding.

[0060] Therefore, it can be understood that, in addition to the inner cavity containing the protrusion 101, Figure 3As shown, the above-mentioned first channel 10 or second channel 20 also includes a recessed portion 102 corresponding to the raised portion 101 and communicating with the raised portion 101. At the same time, the connecting portion 103 for connecting adjacent raised portions 101 is of course also part of the first channel 10 or the second channel 20.

[0061] Therefore, in this embodiment, each heat exchange medium flow channel is specifically composed of the inner cavity of the convex portion 101, the inner cavity of the concave portion 102, and the inner cavity of the connecting portion 103, etc., which is also the cavity formed between two adjacent plates 1, which constitutes the heat exchange medium flow channel. Figure 4 and Figure 5 As shown in , since the recessed portion 102 on each plate 1 is formed by the raised portion 101 and the connecting portion 103, it can be understood that since the raised height of the raised portion 101 on the plate 1 is constant, when the inner cavity of the raised portion 101 is different, the inner cavity of the recessed portion 102 will also be different accordingly. That is, when the inner cavity of the raised portion 101 increases, the inner cavity of the recessed portion 102 will decrease accordingly, and when the inner cavity of the raised portion 101 decreases, the inner cavity of the recessed portion 102 will increase accordingly. In this way, this embodiment can also be as Figure 3 As shown, by controlling the size of the inner volume of the protrusion 101, the volume of the first channel 10 and the second channel 20 can be controlled.

[0062] In this embodiment, as an exemplary embodiment, the volume ratio between the first channel 10 and the second channel 20 may be, for example, between 6:4 and 7:3, and specifically, may be 6:4, 6:3, or 7:3, etc. Furthermore, depending on the specific design requirements of the heat exchanger, the internal volume of the raised portion 101 can be adjusted. In other words, by adjusting the "size" of the raised portion 101 (adjusting the size of the raised portion 101 will also adjust the size of the recessed portion 102 in a manner that is opposite to the size of the raised portion 101), thereby achieving different volume ratios between the first channel 10 and the second channel 20 to meet the heat exchange requirements of the heat exchanger.

[0063] By setting the volume ratio of the first channel 10 and the second channel 20, it is helpful to meet the heat exchange requirements between the refrigerant and the coolant in the heat exchanger. It should be pointed out that the volume ratio between the first channel 10 and the second channel 20 is also particularly suitable for the heat exchanger of this embodiment to be used as a battery cooler in new energy vehicles, so that the battery cooler has a better use effect.

[0064] Still by Figures 3 to 5As shown, as a preferred embodiment, the top of each raised portion 101 on the first plate 11 and the second plate 12 of this embodiment can be set to a quadrilateral or a hexagon. At the same time, the bottom of each recessed portion 102 on the first plate 11 and the second plate 12 can also be set to a quadrilateral or a hexagon.

[0065] At this point, it should be noted that the top of each raised portion 101 and the bottom of each recessed portion 102 are quadrilateral or hexagonal, which includes not only standard quadrilaterals or hexagons, but also shapes that are similar to quadrilaterals or hexagons when viewed as a whole. The top of the raised portion 101 and the bottom of the recessed portion 102 are quadrilateral or hexagonal, and it can be understood that when the plates 1 are stacked and the raised portions 101 and recessed portions 102 on adjacent plates 1 are butted together, the contact area between the raised portions 101 and recessed portions 102 is larger, thereby helping to increase the overall strength of the core structure after stacking.

[0066] In a specific implementation, based on the top of each raised portion 101 and the bottom of each recessed portion 102 being a quadrilateral or a hexagon, in particular, for example, the top of each raised portion 101 on the first plate 11 and the second plate 12 can be set to a diamond shape, and at the same time, the bottom of each recessed portion 102 on the first plate 11 and the second plate 12 can also be set to a diamond shape.

[0067] At this time, it should also be noted that the above diamond shape, in addition to being a standard diamond shape, also includes the top of the protrusion 101 or the bottom of the recessed portion 102 being generally diamond-shaped, and can be regarded as a diamond structure. Moreover, it can also be understood that by making the top of the protrusion 101 and the bottom of the recessed portion 102 diamond-shaped, this embodiment not only can increase the contact area between the protrusion 101 and the recessed portion 102 when the plates 1 are stacked and the protrusion 101 and the recessed portion 102 on adjacent plates 1 are docked, thereby helping to increase the overall strength of the core structure after stacking, but it is also beneficial to the design and molding of the protrusion 101 and the recessed portion 102.

[0068] In this embodiment, based on the fact that the top of the raised portion 101 and the bottom of the recessed portion 102 are diamond-shaped, in a specific implementation, as a preferred implementation form, the ratio between the major axis and the minor axis of the top of each raised portion 101 on the first plate 11 and the second plate 12 can be between 3:1 and 3:2, and the ratio between the major axis and the minor axis of the bottom of each recessed portion 102 on the first plate 11 and the second plate 12 can also be between 3:1 and 3:2.

[0069] The long axis is the longer diagonal line between the top of the protrusion 101 and the bottom of the recess 102, and the short axis is the shorter diagonal line between the top of the protrusion 101 and the bottom of the recess 102. The ratio of the long axis to the short axis can be 3:1, 2:1 or 3:2. Figure 6 and Figure 7 As shown, for the first plate 11, the ratio between the major axis and the minor axis at the top of the upper protrusion 101 is a:b, and the ratio between the major axis and the minor axis at the bottom of the upper recess 102 is c:d. For the second plate 12, the ratio between the major axis and the minor axis at the top of the upper protrusion 101 is g:h, and the ratio between the major axis and the minor axis at the bottom of the upper recess 102 is e:f.

[0070] In addition, considering that in the core structure, the long axis direction of the diamond-shaped protrusion 101 and the recessed portion 102 can usually be made to extend along the flow direction of the heat exchange medium in the core structure, therefore, by setting the ratio between the long axis and the short axis at the top of the protrusion 101, and the ratio between the long axis and the short axis at the bottom of the recessed portion 102, this embodiment can also help to reduce the flow resistance of the heat exchange medium circulation channel, especially help to reduce the flow resistance of the first channel 10, that is, the coolant channel, which is conducive to sufficient heat exchange between the coolant and the refrigerant, thereby achieving the effect of increasing the heat exchange efficiency, and at the same time, it can also help to reduce the power of the coolant pump, thereby achieving energy saving.

[0071] Continue as Figures 3 to 5 As shown, in this embodiment, along the protruding direction of the protruding portion 101, the cross-section of each protruding portion 101 on the first plate 11 and the second plate 12 is gradually reduced from bottom to top. At the same time, along the recessed direction of the recessed portion 102, the cross-section of each recessed portion 102 on the first plate 11 and the second plate 12 is also gradually reduced from top to bottom. In this way, by making the cross-section of the protruding portion 101 gradually reduced from bottom to top, and making the cross-section of the recessed portion 102 gradually reduced from top to bottom, it is obvious that it can facilitate the stamping of the protruding portion 101 and the recessed portion 102.

[0072] On the basis of the gradual change of the cross-section of the raised portion 101 and the recessed portion 102 on each plate 1, as shown in FIG. Figures 8 and 9 As shown in , as a preferred embodiment, in specific implementation, this embodiment can, for example, ensure that the draft angle α of each protrusion 101 in the major axis direction and the draft angle β in the minor axis direction on the first plate 11 and the second plate 12 satisfy α≤β. Thus, by controlling the draft angles of the protrusions 101 in the major and minor axis directions, the stamping process of the protrusions 101 and the recesses 102 can be further facilitated, thereby facilitating the production of the plate 1. In specific implementations, for example, α can be set to 0.8β, α = 0.65β, or α = 0.5β.

[0073] In this embodiment, as a preferred implementation form, Figure 4 and Figure 5 As shown in , in a specific implementation, each of the connecting portions 103 located on the first plate 11 and the second plate 12 may be, for example, saddle-shaped. In this case, the saddle-shaped, or stamped, connecting portion 103 is slightly concave in the middle and slightly convex at both ends near the raised portion 101. By making the connecting portion 103 saddle-shaped, it can be understood that it not only facilitates the forming of the connecting portion 103 and ensures the structural strength of the connecting portion 103, but also, by controlling the raised height of the connecting portion 103, it can also control the volume of the heat exchange medium flow channel, thereby adjusting the volume ratio between the first channel 10 and the second channel 20.

[0074] The heat exchanger core structure of this embodiment adopts the above design. By making the volume of the first channel 10 in the heat exchange medium circulation channel larger than the volume of the second channel 20, that is, making the volume of the coolant channel larger than the volume of the refrigerant channel, the flow resistance of the first channel 10 can be made smaller than the flow resistance of the second channel 20. During heat exchange, the refrigerant flow resistance can be increased, resulting in an increased flow velocity of the refrigerant in the channel and more obvious turbulence, which is conducive to sufficient heat exchange with the coolant. At the same time, it can also reduce the coolant flow resistance and slow down the coolant flow velocity, which is not only conducive to sufficient heat exchange with the refrigerant, thereby increasing the heat exchange efficiency of the heat exchanger, but also helps to reduce the power of the coolant pump, achieve energy saving, and help to improve the use effect of the heat exchanger.

[0075] Example 2

[0076] This embodiment relates to a heat exchanger, which is specifically a plate heat exchanger. The heat exchanger has the heat exchanger core structure in the first embodiment, and the first channel 10 is a coolant channel, and the second channel 20 is a refrigerant channel.

[0077] In specific implementation, the core structure of the heat exchanger in this embodiment can refer to the description in the above-mentioned embodiment 1, and in addition to the relevant description in embodiment 1, the parts of the core structure of the heat exchanger that are not described, as well as other parts of the heat exchanger except the core structure, can all refer to the relevant structures in the existing plate heat exchanger, and will not be repeated here.

[0078] Finally, this embodiment also relates to a vehicle, in which the above-mentioned heat exchanger is provided.

[0079] The heat exchanger of this embodiment, and the vehicle equipped with the same, are beneficial to increasing the heat exchange efficiency of the heat exchanger, helping to improve the use effect of the heat exchanger, and can also play an energy-saving role, and have good practicality.

[0080] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A heat exchanger core structure, characterized in that: It comprises a plurality of plates (1) stacked together in sequence, with heat exchange medium flow channels formed between adjacent plates (1); The heat exchange medium circulation channel comprises a first channel (10) and a second channel (20) alternately arranged along the stacking direction of the plate (1), and the volume of the first channel (10) is greater than the volume of the second channel (20); The plurality of plates (1) include a first plate (11) and a second plate (12) alternately arranged along a stacking direction, wherein the first plate (11) and the second plate (12) are each formed with a plurality of protrusions (101) protruding toward the same side of the plate (1), a connecting portion (103) connecting the inner cavities of adjacent protrusions (101), and a plurality of recessed portions (102) formed by the protrusions (101) and the connecting portions (103); The first channel (10) includes the inner cavity of the protrusion (101) on the first plate (11), the second channel (20) includes the inner cavity of the protrusion (101) on the second plate (12), and the inner cavity volume of the protrusion (101) on the first plate (11) is greater than the inner cavity volume of the protrusion (101) on the second plate (12).

2. The heat exchanger core structure according to claim 1, characterized in that: The volume ratio of the first channel (10) to the second channel (20) is between 6:4 and 7:

3.

3. The heat exchanger core structure according to claim 1, characterized in that: The tops of the protrusions (101) on the first plate (11) and the second plate (12) are both quadrilateral or hexagonal, and the bottoms of the recesses (102) on the first plate (11) and the second plate (12) are both quadrilateral or hexagonal.

4. The heat exchanger core structure according to claim 3, characterized in that: The top of each of the raised portions (101) on the first plate (11) and the second plate (12) is a diamond shape, and the bottom of each of the recessed portions (102) on the first plate (11) and the second plate (12) is a diamond shape; The ratio between the major axis and the minor axis of the top of each of the protrusions (101) on the first plate (11) and the second plate (12) is between 3:1 and 3:2, and the ratio between the major axis and the minor axis of the bottom of each of the recesses (102) on the first plate (11) and the second plate (12) is between 3:1 and 3:2; The major axis is the longer diagonal line between the top of the raised portion (101) and the bottom of the recessed portion (102), and the minor axis is the shorter diagonal line between the top of the raised portion (101) and the bottom of the recessed portion (102).

5. The heat exchanger core structure according to claim 4, characterized in that: Along the protruding direction, the cross-sections of the protruding portions (101) on the first plate (11) and the second plate (12) are gradually reduced from the bottom to the top; Along the concave direction, the cross-sections of the concave portions (102) on the first plate (11) and the second plate (12) are gradually reduced from the top to the bottom.

6. The heat exchanger core structure according to claim 5, characterized in that: The draft angle α of each of the protrusions (101) on the first plate (11) and the second plate (12) in the direction of the major axis and the draft angle β in the direction of the minor axis satisfy α≤β.

7. The heat exchanger core structure according to claim 1, characterized in that: Each of the connecting portions (103) on the first plate (11) and the second plate (12) is saddle-shaped.

8. A heat exchanger, characterized in that: The heat exchanger has the heat exchanger core structure according to any one of claims 1 to 7, and the first channel (10) is a coolant channel, and the second channel (20) is a refrigerant channel.

9. A vehicle, characterized in that: The vehicle is provided with the heat exchanger according to claim 8.

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