Heat exchange core body, heat exchanger and vehicle

Abstract

The utility model discloses a heat exchange core body, a heat exchanger and a vehicle, the heat exchange core body comprises a first heat exchange piece, a second heat exchange piece and a middle heat exchange piece, and the first heat exchange piece and the second heat exchange piece are respectively connected to two ends of the middle heat exchange piece; a semi-closed liquid inlet flow channel, a semi-closed liquid outlet flow channel and a middle flow channel are formed in the first heat exchange piece in a spaced mode, and a second liquid inlet flow channel and a second liquid outlet flow channel are formed in the second heat exchange piece in a spaced mode. A refrigerant flowing into the semi-closed liquid inlet flow channel is suitable for flowing to the second liquid inlet flow channel through one part of the flat pipes positioned in the liquid inlet area and flowing to the middle flow channel from the other part of the flat pipes positioned in the liquid inlet area; and a refrigerant at the middle flow channel is suitable for flowing to the semi-closed liquid outlet flow channel through one part of the flat pipes located in the liquid outlet area, the second liquid outlet flow channel and the other part of the flat pipes located in the liquid outlet area. According to the heat exchange core body, the sealing performance of the semi-closed liquid inlet flow channel and the semi-closed liquid outlet flow channel can be guaranteed, and the manufacturing efficiency can be improved.

Description

Technical Field

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

[0002] With the development of the national economy and the continuous improvement of living standards, vehicles are becoming more and more important in people's lives and travel. With the rapid development of vehicle production technology, in order to meet the concept of energy conservation and emission reduction, most existing vehicles are equipped with heat exchangers. In the actual working state of the vehicle, the refrigerant with a lower temperature enters the heat exchanger and exchanges heat with the coolant through the flat tubes and fins in the heat exchanger. Then the coolant can exchange heat with structures such as the vehicle battery to cool the vehicle battery and the vehicle's electric drive system.

[0003] The heat exchange components of the existing heat exchangers are provided with a liquid inlet channel and a liquid outlet channel, and the liquid inlet and liquid outlet are separated by welding partitions in the liquid inlet channel and the liquid outlet channel. However, welding partitions in the liquid inlet channel and the liquid outlet channel will cause risks such as liquid inlet or liquid outlet leakage, and increase the processing steps and reduce manufacturing efficiency. There is room for improvement. Utility Model Content

[0004] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, the utility model proposes a heat exchange core that can ensure the sealing of the semi-enclosed liquid inlet flow channel and the semi-enclosed liquid outlet flow channel, thereby ensuring the heat exchange efficiency of the heat exchange core, and can reduce the processing steps of the first heat exchange component and improve the manufacturing efficiency.

[0005] According to an embodiment of the utility model, the heat exchange core comprises: a first heat exchange member, a second heat exchange member and an intermediate heat exchange member, wherein the first heat exchange member and the second heat exchange member are respectively connected to the two ends of the intermediate heat exchange member, and the intermediate heat exchange member comprises a liquid inlet area and a liquid outlet area, wherein the liquid inlet area and the liquid outlet area are both provided with a plurality of flat tubes, and a coolant flow channel is formed between two adjacent flat tubes, and the coolant in the coolant flow channel is suitable for heat exchange with the refrigerant in the flat tubes; wherein the first heat exchange member is provided with a semi-enclosed liquid inlet flow channel, a semi-enclosed liquid outlet flow channel and an intermediate flow channel separated from each other, and the second heat exchange member is provided with a second liquid inlet flow channel and a second liquid outlet flow channel separated from each other, and the refrigerant flowing into the semi-enclosed liquid inlet flow channel is suitable for flowing to the second liquid inlet flow channel through a part of the flat tubes located in the liquid inlet area and flowing to the intermediate flow channel from another part of the flat tubes located in the liquid inlet area, and the refrigerant in the intermediate flow channel is suitable for flowing to the semi-enclosed liquid outlet flow channel through a part of the flat tubes located in the liquid outlet area, the second liquid outlet flow channel, and another part of the flat tubes located in the liquid outlet area.

[0006] According to the heat exchange core of the embodiment of the utility model, by directly forming spaced apart semi-closed liquid inlet flow channel, semi-closed liquid outlet flow channel and intermediate flow channel in the first heat exchange component, the sealing of the semi-closed liquid inlet flow channel and the semi-closed liquid outlet flow channel can be ensured to ensure the heat exchange efficiency of the heat exchange core, and the processing steps of the first heat exchange component can be reduced, the manufacturing efficiency can be improved, the use effect is better, and the scope of application is wider.

[0007] According to the heat exchange core of some embodiments of the present invention, the first heat exchange component includes a first cover plate, a first flow channel plate, a second flow channel plate and a first main board which are stacked and connected in sequence, the semi-closed liquid inlet flow channel and the semi-closed liquid outlet flow channel are formed in the first cover plate, the middle flow channel is defined between the first flow channel plate and the second flow channel plate, and a plurality of the flat tubes are connected to the first main board to be respectively connected to the semi-closed liquid inlet flow channel, the semi-closed liquid outlet flow channel and the middle flow channel.

[0008] According to the heat exchange core of some embodiments of the present utility model, a first liquid inlet channel and a first liquid outlet channel are further defined between the first flow channel plate and the second flow channel plate, the first liquid inlet channel is connected between the semi-closed liquid inlet channel and a part of the flat tubes located in the liquid inlet area, and the first liquid outlet channel is connected between another part of the flat tubes located in the liquid outlet area and the semi-closed liquid outlet channel.

[0009] According to the heat exchange core of some embodiments of the utility model, the semi-enclosed liquid inlet flow channel includes a first enclosed section and a first open section which are connected to each other, the first enclosed section is formed with a liquid inlet, the first enclosed section is directly opposite to and spaced from the intermediate flow channel along the stacking direction of the first heat exchange element, and the first open section is directly opposite to and connected to the first liquid inlet flow channel along the stacking direction of the first heat exchange element;

[0010] And / or, the semi-closed liquid outlet channel includes a second closed section and a second open section which are interconnected, the second closed section is formed with a liquid outlet, the second closed section is opposite to and spaced from the intermediate channel along the stacking direction of the first heat exchanger, and the second open section is opposite to and connected to the first liquid outlet channel along the stacking direction of the first heat exchanger.

[0011] According to the heat exchange core of some embodiments of the present invention, the first cover plate is formed with protruding first flow channel columns and second flow channel columns on the side away from the first flow channel plate, the semi-closed liquid inlet flow channel is formed in the first flow channel column, and the semi-closed liquid outlet flow channel is formed in the second flow channel column.

[0012] According to the heat exchange core of some embodiments of the present invention, the second heat exchange element includes a second cover plate, a third flow channel plate, a fourth flow channel plate and a second main board which are stacked and connected in sequence, the second liquid inlet flow channel and the second liquid outlet flow channel are defined between the third flow channel plate and the fourth flow channel plate, the second cover plate is used to close the second liquid inlet flow channel and the second liquid outlet flow channel, and the plurality of flat tubes are connected to the second main board to be respectively connected to the second liquid inlet flow channel and the second liquid outlet flow channel.

[0013] According to some embodiments of the utility model, the heat exchange core further includes a middle partition, which is located between the liquid inlet area and the liquid outlet area, one end of the middle partition is abutted against the second heat exchange element and an end gap is formed between the other end and the first heat exchange element, and the portion of the coolant flow channel located in the liquid inlet area and the portion located in the liquid outlet area are connected through the end gap.

[0014] According to the heat exchange core of some embodiments of the utility model, the first heat exchange member is formed with a plurality of first plug holes, and the plurality of first plug holes are respectively plugged and matched with one end of the plurality of flat tubes;

[0015] And / or, the second heat exchange member is formed with a plurality of second plug holes, and the plurality of second plug holes are respectively plugged and matched with the other ends of the plurality of flat tubes.

[0016] The utility model also provides a heat exchanger.

[0017] The heat exchanger according to the embodiment of the utility model is provided with any of the heat exchange cores described above.

[0018] The utility model also provides a vehicle.

[0019] The vehicle according to the embodiment of the utility model is provided with the heat exchanger described above.

[0020] The advantages of the heat exchanger, the vehicle and the heat exchange core described above compared to the prior art are the same and will not be described in detail here.

[0021] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0023] Figure 1 It is a structural schematic diagram of a heat exchange core and a bottom cover according to an embodiment of the utility model;

[0024] Figure 2 The schematic diagram of the local structure of the heat exchanger according to the embodiment of the utility model is as follows Figure 1 ;

[0025] Figure 3 The schematic diagram of the local structure of the heat exchanger according to the embodiment of the utility model is as follows Figure 2 ;

[0026] Figure 4 is a schematic structural diagram of a first heat exchange member according to an embodiment of the utility model;

[0027] Figure 5 is a schematic structural diagram of a first cover plate according to an embodiment of the utility model;

[0028] Figure 6 is a schematic structural diagram of a first flow channel plate according to an embodiment of the utility model;

[0029] Figure 7 is a schematic structural diagram of a second flow channel plate according to an embodiment of the utility model;

[0030] Figure 8 is a schematic structural diagram of a first mainboard according to an embodiment of the utility model;

[0031] Fig. 9 is a schematic structural diagram of a second heat exchange member according to an embodiment of the utility model;

[0032] Fig.10 is a schematic structural diagram of a second mainboard according to an embodiment of the utility model;

[0033] Fig.11 is a schematic structural diagram of a fourth flow channel plate according to an embodiment of the utility model;

[0034] Fig.12 is a schematic structural diagram of a third flow channel plate according to an embodiment of the utility model;

[0035] Fig.13 It is a structural schematic diagram of a middle partition according to an embodiment of the utility model;

[0036] Fig.14 The schematic diagram of the local structure of the heat exchanger according to the embodiment of the utility model is as follows Figure 3 ;

[0037] Fig.15 It is a partial structural schematic diagram of an intermediate heat exchanger according to an embodiment of the utility model;

[0038] Fig.16 It is a schematic structural diagram of a heat exchanger according to an embodiment of the utility model.

[0039] Reference numerals:

[0040] Heat exchanger 100,

[0041] Shell 1, upper cover 11, side panel 12, bottom cover 13, water inlet pipe 14, water outlet pipe 15, inlet flange 16, outlet flange 17, elastic member 18,

[0042] Heat exchange core 2, first heat exchange element 3, first cover plate 31, first flow channel column 311, semi-enclosed liquid inlet flow channel 312, first closed section 3121, liquid inlet 3122, first open section 3123, second flow channel column 313, semi-enclosed liquid outlet flow channel 314, second closed section 3141, liquid outlet 3142, second open section 3143, first flow channel plate 32, second flow channel plate 33, middle flow channel 331, first liquid inlet flow channel 332, first liquid outlet flow channel 333, first main board 34, first plug hole 341, first notch 342, first buckle 343,

[0043] The second heat exchange member 4, the second cover plate 41, the third flow channel plate 42, the drainage groove 421, the fourth flow channel plate 43, the second liquid inlet flow channel 431, the second liquid outlet flow channel 432, the second main board 44, the second plug hole 441, the second notch 442, the second buckle 443,

[0044] The intermediate heat exchange element 5 , the liquid inlet area 51 , the liquid outlet area 52 , the flat tube 53 , the refrigerant flow channel 531 , the fin 54 , the coolant flow channel 55 , the middle partition plate 56 , the pressing protrusion 57 , and the end gap 58 . DETAILED DESCRIPTION

[0045] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0046] In the description of the present utility model, it is necessary to understand that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, 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 on the present utility model. In addition, features defined as "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present utility model, unless otherwise specified, "multiple" means two or more.

[0047] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0048] Unless otherwise specified, the front-to-back direction in the present application is the longitudinal direction of the vehicle, that is, the X direction; the left-right direction is the lateral direction of the vehicle, that is, the Y direction; and the up-down direction is the vertical direction of the vehicle, that is, the Z direction.

[0049] Reference below Figure 1-Figure 16 The heat exchange core 2 according to the embodiment of the utility model can ensure the sealing of the semi-enclosed liquid inlet channel 312 and the semi-enclosed liquid outlet channel 314, thereby ensuring the heat exchange efficiency of the heat exchange core 2, and can reduce the processing steps of the first heat exchange component 3 and improve the manufacturing efficiency.

[0050] like Figure 1-Figure 16 As shown, a heat exchange core 2 according to an embodiment of the present utility model includes: a first heat exchange element 3, a second heat exchange element 4 and an intermediate heat exchange element 5.

[0051] The first heat exchanger 3 and the second heat exchanger 4 are respectively connected to the two ends of the intermediate heat exchanger 5. The intermediate heat exchanger 5 includes a liquid inlet area 51 and a liquid outlet area 52. The liquid inlet area 51 and the liquid outlet area 52 are both provided with a plurality of flat tubes 53. A coolant flow channel 55 is formed between two adjacent flat tubes 53. The coolant in the coolant flow channel 55 is suitable for heat exchange with the refrigerant in the flat tubes 53.

[0052] The heat exchanger 100 is arranged inside the vehicle. When the vehicle is in actual working state, the refrigerant with lower temperature can enter the heat exchanger 100 through the pipeline, and then exchange heat with the coolant passed into the heat exchanger 100 through the heat exchange core 2 in the heat exchanger 100. Then, the coolant with lower temperature can flow to the outside of the heat exchanger 100 to exchange heat with structures such as the vehicle battery, thereby cooling the vehicle battery and the vehicle's electric drive system to ensure the reliability of vehicle operation. The heat exchanger 100 is provided with a cascade type and a parallel flow type. The cascade heat exchanger 100 can be used in an environment with lower operating pressure, and the parallel flow heat exchanger 100 can be used in an environment with higher operating pressure, thereby meeting different usage requirements and having a wider range of applications.

[0053] Specifically, the heat exchange core 2 can be installed in the heat exchanger 100, and the heat exchange core 2 is provided with a first heat exchange element 3, a second heat exchange element 4 and an intermediate heat exchange element 5. The intermediate heat exchange element 5 is arranged between the first heat exchange element 3 and the second heat exchange element 4, and the two ends of the intermediate heat exchange element 5 are respectively plugged into the first heat exchange element 3 and the second heat exchange element 4, so that the first heat exchange element 3, the second heat exchange element 4 and the intermediate heat exchange element 5 are fixedly connected. The heat exchange core 2 is provided with a liquid inlet area 51 and a liquid outlet area 52 that are spaced apart and distributed. The liquid inlet area 51 and the liquid outlet area 52 are connected, and the coolant can enter the liquid inlet area 51 and then flow to the liquid outlet area 52.

[0054] Both the liquid inlet area 51 and the liquid outlet area 52 are provided with a plurality of flat tubes 53, and each flat tube 53 is correspondingly provided with a connected fin 54. The flat tube 53 can transfer heat to the fin 54. The fin 54 can be provided as an aluminum foil sheet cut by a tool to form a window structure and folded up. The fin 54 can conduct the low temperature generated by the evaporation of the refrigerant in the flat tube 53, and a coolant flow channel 55 is formed between two adjacent flat tubes 53. The coolant can flow in the coolant flow channel 55, so that the flat tube 53 can exchange heat with the coolant. A refrigerant flow channel 531 is provided in the flat tube 53. The coolant in the coolant flow channel 55 can exchange heat with the refrigerant in the flat tube 53, so that the coolant can be cooled. The refrigerant is in a two-phase state when entering the heat exchanger 100. After the refrigerant absorbs heat, the refrigerant flows to the outside of the heat exchanger 100 in a gaseous state.

[0055] Among them, the first heat exchanger 3 is formed with a spaced-apart semi-enclosed liquid inlet channel 312, a semi-enclosed liquid outlet channel 314 and an intermediate channel 331, and the second heat exchanger 4 is formed with a spaced-apart second liquid inlet channel 431 and a second liquid outlet channel 432. The refrigerant flowing into the semi-enclosed liquid inlet channel 312 is suitable for flowing to the second liquid inlet channel 431 through a part of the flat tubes 53 located in the liquid inlet area 51 and flowing from another part of the flat tubes 53 located in the liquid inlet area 51 to the intermediate channel 331. The refrigerant in the intermediate channel 331 is suitable for flowing to the semi-enclosed liquid outlet channel 314 through a part of the flat tubes 53 located in the liquid outlet area 52, the second liquid outlet channel 432, and another part of the flat tubes 53 located in the liquid outlet area 52.

[0056] Specifically, a semi-closed liquid inlet channel 312, a semi-closed liquid outlet channel 314 and an intermediate channel 331 are formed in the first heat exchange element 3. The refrigerant can flow into the heat exchange core 2 through the semi-closed liquid inlet channel 312, and can flow to the outside of the heat exchange core 2 through the semi-closed liquid outlet channel 314. The second heat exchange element 4 is also provided with a second liquid inlet channel 431 and a second liquid outlet channel 432, and the second liquid inlet channel 431 and the second liquid outlet channel 432 are arranged separately.

[0057] Furthermore, the refrigerant flows into the heat exchange core 2 through the semi-closed liquid inlet channel 312, one end of a portion of the flat tubes 53 in the liquid inlet area 51 is connected to the semi-closed liquid inlet channel 312, and the other end is connected to the second liquid inlet channel 431, so that the refrigerant can flow to the second liquid inlet channel 431 through the flat tubes 53, and one end of another portion of the flat tubes 53 in the liquid inlet area 51 is connected to the second liquid inlet channel 431, and the other end is connected to the intermediate channel 331, so that the refrigerant can flow to the intermediate channel 331 through the flat tubes 53.

[0058] At the same time, one end of a portion of the flat tubes 53 in the liquid outlet area 52 is connected to the intermediate flow channel 331, and the other end is connected to the second liquid outlet flow channel 432, and one end of another portion of the flat tubes 53 in the liquid outlet area 52 is connected to the second liquid outlet flow channel 432, and the other end is connected to the semi-closed liquid outlet flow channel 314, so that the refrigerant in the intermediate flow channel 331 can flow to the semi-closed liquid outlet flow channel 314 in sequence through a portion of the flat tubes 53 located in the liquid outlet area 52, the second liquid outlet flow channel 432, and another portion of the flat tubes 53 located in the liquid outlet area 52, so as to flow out of the heat exchange core 2 through the semi-closed liquid outlet flow channel 314, and the semi-closed liquid inlet flow channel 312, the semi-closed liquid outlet flow channel 314 and the intermediate flow channel 331 are directly formed in the first heat exchange component 3, which can ensure the sealing of the semi-closed liquid inlet flow channel 312 and the semi-closed liquid outlet flow channel 314, and can reduce the processing steps of the first heat exchange component 3, thereby improving the manufacturing efficiency.

[0059] According to the heat exchange core 2 of the embodiment of the utility model, by directly forming the spaced-apart semi-enclosed liquid inlet channel 312, the semi-enclosed liquid outlet channel 314 and the intermediate channel 331 in the first heat exchange component 3, the sealing of the semi-enclosed liquid inlet channel 312 and the semi-enclosed liquid outlet channel 314 can be ensured to ensure the heat exchange efficiency of the heat exchange core 2, and the processing steps of the first heat exchange component 3 can be reduced, the manufacturing efficiency can be improved, the use effect is better, and the scope of application is wider.

[0060] In some embodiments, the first heat exchange element 3 includes a first cover plate 31, a first flow channel plate 32, a second flow channel plate 33 and a first main board 34 which are stacked and connected in sequence. A semi-enclosed liquid inlet channel 312 and a semi-enclosed liquid outlet channel 314 are formed in the first cover plate 31. An intermediate flow channel 331 is defined between the first flow channel plate 32 and the second flow channel plate 33. A plurality of flat tubes 53 are connected to the first main board 34 to be connected to the semi-enclosed liquid inlet channel 312, the semi-enclosed liquid outlet channel 314 and the intermediate flow channel 331, respectively.

[0061] Specifically, the heat exchange core 2 is provided with a first heat exchange element 3, a second heat exchange element 4 and an intermediate heat exchange element 5, wherein the intermediate heat exchange element 5 is provided between the first heat exchange element 3 and the second heat exchange element 4. Figure 4 As shown, the first heat exchanger 3 is provided with a first cover plate 31, a first flow channel plate 32, a second flow channel plate 33 and a first main board 34, and the first cover plate 31, the first flow channel plate 32, the second flow channel plate 33 and the first main board 34 are stacked and connected in sequence along the direction toward the intermediate heat exchanger 5.

[0062] like Figure 5 As shown, the semi-enclosed liquid inlet channel 312 and the semi-enclosed liquid outlet channel 314 are formed in the first cover plate 31, and are arranged in parallel and spaced apart on the side of the first cover plate 31 away from the intermediate heat exchanger 5. The first channel plate 32 and the second channel plate 33 are connected and define an intermediate channel 331. The first main board 34 is arranged on the side of the first heat exchanger 3 close to the intermediate heat exchanger 5. A plurality of flat tubes 53 can be connected to the first main board 34, so that the flat tubes 53 can be respectively connected to the semi-enclosed liquid inlet channel 312, the semi-enclosed liquid outlet channel 314 and the intermediate channel 331, so that the refrigerant can flow between the semi-enclosed liquid inlet channel 312, the semi-enclosed liquid outlet channel 314, the intermediate channel 331 and the flat tubes 53, so that the refrigerant and the coolant can exchange heat, meet the use requirements, and increase the insertion depth of the flat tubes 53 to improve the connection reliability.

[0063] Among them, Figure 8As shown, both sides of the first main board 34 are provided with first buckle teeth 343 protruding toward and away from the intermediate heat exchanger 5, and both sides of the first cover plate 31, the first flow channel plate 32 and the second flow channel plate 33 can be welded and connected with the first buckle teeth 343 to ensure connection reliability, and the first main board 34 is provided with a first notch 342 at the first buckle teeth 343 at the end to avoid bulging due to material extrusion, etc., to ensure welding reliability, and chamfers can be provided on both sides of the first cover plate 31 to reduce the stress of the first buckle teeth 343 from both sides to the middle when the first main board 34 is buckled, thereby reducing the deformation of the first cover plate 31 and ensuring welding reliability.

[0064] In some embodiments, a first liquid inlet channel 332 and a first liquid outlet channel 333 are further defined between the first flow channel plate 32 and the second flow channel plate 33. The first liquid inlet channel 332 is connected between the semi-enclosed liquid inlet channel 312 and a portion of the flat tube 53 located in the liquid inlet area 51, and the first liquid outlet channel 333 is connected between another portion of the flat tube 53 located in the liquid outlet area 52 and the semi-enclosed liquid outlet channel 314.

[0065] Specifically, the first flow channel plate 32 and the second flow channel plate 33 are connected and define a first liquid inlet flow channel 332 and a first liquid outlet flow channel 333. The first liquid inlet flow channel 332 is connected between the semi-enclosed liquid inlet flow channel 312 and a portion of the flat tube 53 located in the liquid inlet area 51, that is, one end of a portion of the flat tube 53 in the liquid inlet area 51 is connected to the semi-enclosed liquid inlet flow channel 312 through the first liquid inlet flow channel 332, and the other end is connected to the second liquid inlet flow channel 431, so that the refrigerant in the semi-enclosed liquid inlet flow channel 312 can pass through the first liquid inlet flow channel 332 and the flat tube 53. It flows to the second liquid inlet channel 431, and the first liquid outlet channel 333 is connected between another part of the flat tube 53 located in the liquid outlet area 52 and the semi-closed liquid outlet channel 314, that is, one end of another part of the flat tube 53 in the liquid outlet area 52 is connected to the semi-closed liquid outlet channel 314 through the first liquid outlet channel 333, and the other end is connected to the second liquid outlet channel 432, so that the refrigerant in the second liquid outlet channel 432 can flow to the semi-closed liquid outlet channel 314 through the flat tube 53 and the first liquid outlet channel 333, thereby realizing the circulation of the refrigerant and ensuring operational reliability.

[0066] In some embodiments, the semi-closed liquid inlet channel 312 includes a first closed section 3121 and a first open section 3123 which are interconnected. The first closed section 3121 is formed with a liquid inlet 3122. The first closed section 3121 is opposite to and separated from the intermediate channel 331 along the stacking direction of the first heat exchanger 3. The first open section 3123 is opposite to and connected to the first liquid inlet channel 332 along the stacking direction of the first heat exchanger 3.

[0067] Specifically, a semi-enclosed liquid inlet channel 312 and a semi-enclosed liquid outlet channel 314 are formed in the first cover plate 31 and are arranged in parallel and spaced apart on the side of the first cover plate 31 away from the intermediate heat exchanger 5. The semi-enclosed liquid inlet channel 312 is provided with a first closed section 3121 and a first open section 3123. The first closed section 3121 is a columnar cavity open at both ends. One end of the first closed section 3121 is connected to the first open section 3123, and a liquid inlet 3122 is formed at the other end. The refrigerant can enter the first closed section 3121 through the liquid inlet 3122 and then flow to the first open section 3123. The first closed section 3121 is opposite to and spaced from the intermediate channel 331 along the stacking direction of the first heat exchanger 3, and the first open section 3123 is opposite to and connected to the first liquid inlet channel 332 along the stacking direction of the first heat exchanger 3, that is, the refrigerant can only flow into the first liquid inlet channel 332 through the first open section 3123.

[0068] Furthermore, the refrigerant flowing into the intermediate flow channel 331 can only flow in the intermediate flow channel 331, and the intermediate flow channel 331 is respectively connected with part of the flat tubes 53 in the liquid inlet area 51 and part of the flat tubes 53 in the liquid outlet area 52, so that the refrigerant in the partial flat tubes 53 in the liquid inlet area 51 can flow to the partial flat tubes 53 in the liquid outlet area 52 through the intermediate flow channel 331, so as to realize the full flow of the refrigerant in the intermediate heat exchange component 5 and improve the heat exchange effect.

[0069] And / or, the semi-closed liquid outlet channel 314 includes a second closed section 3141 and a second open section 3143 which are interconnected, the second closed section 3141 is formed with a liquid outlet 3142, the second closed section 3141 is opposite to and separated from the intermediate channel 331 along the stacking direction of the first heat exchanger 3, and the second open section 3143 is opposite to and connected to the first liquid outlet channel 333 along the stacking direction of the first heat exchanger 3.

[0070] Specifically, a semi-enclosed liquid inlet channel 312 and a semi-enclosed liquid outlet channel 314 are formed in the first cover plate 31, and are arranged in parallel and spaced apart on the side of the first cover plate 31 away from the intermediate heat exchanger 5. The semi-enclosed liquid outlet channel 314 is provided with a second closed section 3141 and a second open section 3143. The second closed section 3141 is a columnar cavity open at both ends. One end of the second closed section 3141 is connected to the second open section 3143, and the other two ends are formed with liquid outlets 3142. The refrigerant can enter the first closed section 3121 through the second open section 3143, and then flow to the liquid outlet 3142. The second closed section 3141 is opposite to and spaced from the intermediate channel 331 along the stacking direction of the first heat exchanger 3, and the second open section 3143 is opposite to and connected to the first liquid outlet channel 333 along the stacking direction of the first heat exchanger 3, that is, the refrigerant can only flow into the first open section 3123 through the first liquid inlet channel 332.

[0071] Furthermore, the refrigerant flowing into the intermediate flow channel 331 can only flow in the intermediate flow channel 331, and the intermediate flow channel 331 is respectively connected with part of the flat tubes 53 in the liquid inlet area 51 and part of the flat tubes 53 in the liquid outlet area 52, so that the refrigerant in the partial flat tubes 53 in the liquid inlet area 51 can flow to the partial flat tubes 53 in the liquid outlet area 52 through the intermediate flow channel 331, so as to realize the full flow of the refrigerant in the intermediate heat exchange component 5 and improve the heat exchange effect.

[0072] In some embodiments, the first cover plate 31 is formed with a protruding first flow channel column 311 and a second flow channel column 313 on a side away from the first flow channel plate 32 , a semi-enclosed liquid inlet channel 312 is formed in the first flow channel column 311 , and a semi-enclosed liquid outlet channel 314 is formed in the second flow channel column 313 .

[0073] Specifically, Figure 4-Figure 5 As shown, the first heat exchanger 3 is provided with a first cover plate 31, and the first cover plate 31 is arranged on the side of the first heat exchanger 3 away from the intermediate heat exchanger 5. A semi-enclosed liquid inlet channel 312 and a semi-enclosed liquid outlet channel 314 are formed in the first cover plate 31 to allow the refrigerant to flow into and out of the first heat exchanger 3, and the first cover plate 31 is provided with a first flow channel column 311 and a second flow channel column 313. The first flow channel column 311 is formed on the side of the first cover plate 31 away from the first flow channel plate 32 and protrudes away from the first flow channel plate 32. The second flow channel column 313 is also formed on the side of the first cover plate 31 away from the first flow channel plate 32 and protrudes away from the first flow channel plate 32. The first flow channel column 311 and the second flow channel column 313 are spaced apart.

[0074] The semi-closed liquid inlet channel 312 is formed in the first channel column 311, and the semi-closed liquid outlet channel 314 is formed in the second channel column 313, so that the side of the first cover plate 31 facing the first channel plate 32 is a plane, and thus the semi-closed liquid inlet channel 312 and the semi-closed liquid outlet channel 314 are provided on the first cover plate 31, and the reliability of the connection between the first cover plate 31 and the first channel plate 32 can be guaranteed.

[0075] In some embodiments, the second heat exchange element 4 includes a second cover plate 41, a third flow channel plate 42, a fourth flow channel plate 43 and a second main board 44 which are stacked and connected in sequence, and a second liquid inlet channel 431 and a second liquid outlet channel 432 are defined between the third flow channel plate 42 and the fourth flow channel plate 43. The second cover plate 41 is used to close the second liquid inlet channel 431 and the second liquid outlet channel 432. A plurality of flat tubes 53 are connected to the second main board 44 to communicate with the second liquid inlet channel 431 and the second liquid outlet channel 432, respectively.

[0076] Specifically, the heat exchange core 2 is provided with a first heat exchange element 3, a second heat exchange element 4 and an intermediate heat exchange element 5, wherein the intermediate heat exchange element 5 is provided between the first heat exchange element 3 and the second heat exchange element 4. Fig. 9 As shown, the second heat exchanger 4 is provided with a second cover plate 41, a third flow channel plate 42, a fourth flow channel plate 43 and a second main plate 44, and the second cover plate 41, the third flow channel plate 42, the fourth flow channel plate 43 and the second main plate 44 are stacked and connected in sequence along the direction toward the intermediate heat exchanger 5.

[0077] like Figure 11-Figure 12 As shown, the third flow channel plate 42 and the fourth flow channel plate 43 are connected and define a second liquid inlet flow channel 431 and a second liquid outlet flow channel 432, the second liquid inlet flow channel 431 and the second liquid outlet flow channel 432 are formed on the fourth flow channel plate 43, and the third flow channel plate 42 is formed with a drainage groove 421, the second liquid inlet flow channel 431 and the second liquid outlet flow channel 432 are spaced apart and distributed on both sides of the fourth flow channel plate 43, and the flow channels extend in the same direction, and the extension direction of the drainage groove 421 is the same as that of the second liquid inlet flow channel 431. It is perpendicular to the extension direction of the second liquid outlet channel 432, so that the refrigerant will change its flow direction after flowing from the second liquid inlet channel 431 and the second liquid outlet channel 432 to the drainage groove 421, and will also change its flow direction when flowing from the drainage groove 421 to the second liquid inlet channel 431 and the second liquid outlet channel 432, thereby enabling the refrigerant to flow from one part of the flat tube 53 to another part of the flat tube 53, thereby meeting the use requirements, and increasing the insertion depth of the flat tube 53, thereby improving the connection reliability.

[0078] Among them, Fig.10 As shown, the second main board 44 is provided with second buckle teeth 443 protruding away from the intermediate heat exchanger 5 on both sides, and the second cover plate 41, the third flow channel plate 42 and the fourth flow channel plate 43 can be welded and connected with the second buckle teeth 443 on both sides to ensure the connection reliability, and the second main board 44 is provided with a second notch 442 at the second buckle teeth 443 at the end to avoid bulging caused by material extrusion, etc., thereby ensuring the welding reliability.

[0079] When the number of flat tubes 53 provided in the liquid inlet area 51 and the liquid outlet area 52 is even, the number of the intermediate flow channel 331, the first liquid inlet flow channel 332 and the first liquid outlet flow channel 333 are the same; when the number of flat tubes 53 provided in the liquid inlet area 51 and the liquid outlet area 52 is odd, the number of the first liquid inlet flow channel 332 and the first liquid outlet flow channel 333 are the same and are one more than the number of the intermediate flow channel 331.

[0080] In some embodiments, the heat exchange core 2 also includes a middle partition 56, which is located between the liquid inlet area 51 and the liquid outlet area 52. One end of the middle partition 56 is abutted against the second heat exchange element 4 and an end gap 58 is formed between the other end and the first heat exchange element 3. The portion of the coolant flow channel 55 located in the liquid inlet area 51 and the portion located in the liquid outlet area 52 are connected through the end gap 58.

[0081] Specifically, the heat exchange core 2 is provided with a liquid inlet area 51 and a liquid outlet area 52, the liquid inlet area 51 and the liquid outlet area 52 are connected, and the coolant can flow from the liquid inlet area 51 to the liquid outlet area 52, and Figure 1-Figure 3 as well as Fig.13 As shown, the heat exchange core 2 is also provided with a middle partition 56, which is set to a plate-like structure and is located between the liquid inlet area 51 and the liquid outlet area 52, and one end of the middle partition 56 is abutted against the second heat exchange element 4, and the other end is provided with a pressing protrusion 57, which abuts against the first heat exchange element 3, thereby forming an end gap 58 between the middle partition 56 and the first heat exchange element 3, so that the coolant in the liquid inlet area 51 can flow to the liquid outlet area 52 through the end gap 58.

[0082] Furthermore, the end gap 58 is arranged away from the place where the coolant enters the heat exchange core 2 and the place where the coolant flows out of the heat exchange core 2, that is, the coolant with a higher temperature enters the liquid inlet area 51 and can exchange heat with the refrigerant in the flat tube 53, and the coolant after heat exchange can flow to the liquid outlet area 52 through the end gap 58. The coolant exchanges heat again in the liquid outlet area 52 and then flows out of the heat exchange core 2, thereby extending the heat exchange path of the coolant in the heat exchange core 2 and improving the heat exchange effect.

[0083] In some embodiments, the first heat exchange component 3 is formed with a plurality of first plug-in holes 341, and the plurality of first plug-in holes 341 are respectively plug-fitted with one end of the plurality of flat tubes 53; and / or, the second heat exchange component 4 is formed with a plurality of second plug-in holes 441, and the plurality of second plug-in holes 441 are respectively plug-fitted with the other end of the plurality of flat tubes 53.

[0084] Specifically, the heat exchange core 2 is provided with a first heat exchange element 3, a second heat exchange element 4 and an intermediate heat exchange element 5, and the intermediate heat exchange element 5 is provided with a plurality of flat tubes 53, one end of the plurality of flat tubes 53 is connected to the first heat exchange element 3, and the other end is connected to the second heat exchange element 4, so that the refrigerant can flow between the first heat exchange element 3 and the second heat exchange element 4 through the flat tubes 53.

[0085] Furthermore, the first heat exchange member 3 is formed with a plurality of first plug holes 341, and as shown in FIG. Figure 8 As shown, a plurality of first plug holes 341 are formed on the first main board 34 of the first heat exchanger 3, and the plurality of first plug holes 341 and the plurality of flat tubes 53 are arranged in one-to-one correspondence, so that one end of each flat tube 53 can be plugged into the corresponding first plug hole 341, and the first heat exchanger 3 and the flat tube 53 can both be set as metal parts, which can be brazed after plugging in to ensure connection reliability.

[0086] The second heat exchange member 4 is formed with a plurality of second plug holes 441, and as Figure 8As shown, a plurality of second plug holes 441 are formed on the second main board 44 of the second heat exchanger 4, and the plurality of second plug holes 441 and the plurality of flat tubes 53 are arranged in one-to-one correspondence, so that the other end of each flat tube 53 can be plugged into the corresponding second plug hole 441, and the second heat exchanger 4 and the flat tubes 53 can both be set as metal parts, which can be brazed after plugging in to ensure connection reliability.

[0087] The utility model also provides a heat exchanger 100 .

[0088] The heat exchanger 100 according to the embodiment of the present utility model is provided with any one of the above-mentioned heat exchange cores 2 .

[0089] Specifically, Fig.16 As shown, the heat exchanger 100 is provided with a shell 1, which can provide installation space for the components inside the heat exchanger 100 and provide support and protection for the components inside the heat exchanger 100, and the shell 1 is provided with an upper cover 11, a side panel 12 and a bottom cover 13, the side panel 12 is set as an annular plate structure, the upper cover 11 is connected to one side of the side panel 12, and the middle part of the upper cover 11 can protrude toward the side panel 12, so that the upper cover 11 can be interference-fitted with the side panel 12, and the bottom cover 13 It is connected to the other side of the side panel 12, and the middle part of the bottom cover 13 can also protrude toward the side panel 12, so that the bottom cover 13 can be interference fit with the side panel 12, and when the upper cover 11 and the bottom cover 13 are tightly fitted with the heat exchange core 2 inside the shell 1, a certain gap is still maintained between the bottom cover 13 and the side panel 12, thereby ensuring the reliability of the installation of the heat exchange core 2, and an elastic member 18 is provided between the second heat exchange member 4 and the inner wall of the side panel 12 to avoid coolant bypass and ensure the cooling effect.

[0090] Furthermore, the upper cover 11 of the heat exchanger 100 is provided with a water inlet pipe 14 and a water outlet pipe 15. The coolant can enter the liquid inlet area 51 through the water inlet pipe 14, and the water inlet pipe 14 protrudes from the upper cover 11, which is convenient for the heat exchanger 100 to be connected to external hoses and other structures, and is easy to install. The coolant can flow out of the heat exchanger 100 from the liquid inlet area 51 through the water outlet pipe 15. The water outlet pipe 15 protrudes from the upper cover 11, which is convenient for the heat exchanger 100 to be connected to external hoses and other structures, and is easy to install. The upper cover 11 of the heat exchanger 100 is also provided with an inlet flange 16 and an outlet flange 17. The refrigerant can flow to the liquid inlet 3122 through the inlet flange 16, and can also flow from the liquid outlet 3142 through the outlet flange 17 to the outside of the heat exchanger 100, thereby realizing heat exchange of the heat exchanger 100.

[0091] According to the heat exchanger 100 of the embodiment of the utility model, by directly forming the spaced-apart semi-enclosed liquid inlet channel 312, the semi-enclosed liquid outlet channel 314 and the intermediate channel 331 in the first heat exchange component 3, the sealing of the semi-enclosed liquid inlet channel 312 and the semi-enclosed liquid outlet channel 314 can be ensured to ensure the heat exchange efficiency of the heat exchange core 2, and the processing steps of the first heat exchange component 3 can be reduced, the manufacturing efficiency can be improved, the use effect is better, and the scope of application is wider.

[0092] The utility model also provides a vehicle.

[0093] The vehicle according to the embodiment of the present invention is provided with the above-mentioned heat exchanger 100 .

[0094] According to the vehicle of the embodiment of the utility model, by directly forming the spaced-apart semi-enclosed liquid inlet channel 312, the semi-enclosed liquid outlet channel 314 and the intermediate channel 331 in the first heat exchange component 3, the sealing of the semi-enclosed liquid inlet channel 312 and the semi-enclosed liquid outlet channel 314 can be ensured to ensure the heat exchange efficiency of the heat exchange core 2, and the processing steps of the first heat exchange component 3 can be reduced, the manufacturing efficiency can be improved, the use effect is better, and the scope of application is wider.

[0095] 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 utility model. 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 can be combined in any one or more embodiments or examples in a suitable manner.

[0096] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A heat exchange core, characterized in that: include: A first heat exchanger, a second heat exchanger and an intermediate heat exchanger, wherein the first heat exchanger and the second heat exchanger are respectively connected to two ends of the intermediate heat exchanger, and the intermediate heat exchanger comprises a liquid inlet area and a liquid outlet area, wherein the liquid inlet area and the liquid outlet area are both provided with a plurality of flat tubes, and a coolant flow channel is formed between two adjacent flat tubes, wherein the coolant in the coolant flow channel is suitable for heat exchange with the refrigerant in the flat tubes; Among them, the first heat exchanger is formed with a spaced-apart semi-enclosed liquid inlet channel, a semi-enclosed liquid outlet channel and an intermediate channel, and the second heat exchanger is formed with a spaced-apart second liquid inlet channel and a second liquid outlet channel, the refrigerant flowing into the semi-enclosed liquid inlet channel is suitable for flowing to the second liquid inlet channel through a part of the flat tubes located in the liquid inlet area and flowing from another part of the flat tubes located in the liquid inlet area to the intermediate channel, and the refrigerant in the intermediate channel is suitable for flowing to the semi-enclosed liquid outlet channel through a part of the flat tubes located in the liquid outlet area, the second liquid outlet channel, and another part of the flat tubes located in the liquid outlet area.

2. The heat exchange core according to claim 1, characterized in that: The first heat exchange component includes a first cover plate, a first flow channel plate, a second flow channel plate and a first main plate which are stacked and connected in sequence. The semi-enclosed liquid inlet flow channel and the semi-enclosed liquid outlet flow channel are formed in the first cover plate. The intermediate flow channel is defined between the first flow channel plate and the second flow channel plate. A plurality of flat tubes are connected to the first main plate to communicate with the semi-enclosed liquid inlet flow channel, the semi-enclosed liquid outlet flow channel and the intermediate flow channel, respectively.

3. The heat exchange core according to claim 2, characterized in that: A first liquid inlet channel and a first liquid outlet channel are also defined between the first flow channel plate and the second flow channel plate. The first liquid inlet channel is connected between the semi-enclosed liquid inlet channel and a portion of flat tubes located in the liquid inlet area, and the first liquid outlet channel is connected between another portion of flat tubes located in the liquid outlet area and the semi-enclosed liquid outlet channel.

4. The heat exchange core according to claim 3, characterized in that: The semi-enclosed liquid inlet flow channel comprises a first enclosed section and a first open section which are connected to each other, the first enclosed section is formed with a liquid inlet, the first enclosed section is directly opposite to and spaced from the intermediate flow channel along the stacking direction of the first heat exchange element, and the first open section is directly opposite to and connected to the first liquid inlet flow channel along the stacking direction of the first heat exchange element; And / or, the semi-closed liquid outlet channel includes a second closed section and a second open section which are interconnected, the second closed section is formed with a liquid outlet, the second closed section is opposite to and spaced from the intermediate channel along the stacking direction of the first heat exchanger, and the second open section is opposite to and connected to the first liquid outlet channel along the stacking direction of the first heat exchanger.

5. The heat exchange core according to claim 2, characterized in that: The first cover plate is formed with protruding first and second flow channel columns on a side away from the first flow channel plate, the semi-enclosed liquid inlet flow channel is formed in the first flow channel column, and the semi-enclosed liquid outlet flow channel is formed in the second flow channel column.

6. The heat exchange core according to claim 1, characterized in that: The second heat exchange component includes a second cover plate, a third flow channel plate, a fourth flow channel plate and a second main plate which are stacked and connected in sequence. The second liquid inlet flow channel and the second liquid outlet flow channel are defined between the third flow channel plate and the fourth flow channel plate. The second cover plate is used to close the second liquid inlet flow channel and the second liquid outlet flow channel. The plurality of flat tubes are connected to the second main plate to communicate with the second liquid inlet flow channel and the second liquid outlet flow channel, respectively.

7. The heat exchange core according to claim 1, characterized in that: It also includes a middle partition, which is located between the liquid inlet area and the liquid outlet area. One end of the middle partition is against the second heat exchange element and an end gap is formed between the other end and the first heat exchange element. The part of the coolant flow channel located in the liquid inlet area and the part located in the liquid outlet area are connected through the end gap.

8. The heat exchange core according to claim 2, characterized in that: The first heat exchange member is formed with a plurality of first plug holes, and the plurality of first plug holes are respectively plugged and matched with one end of the plurality of flat tubes; And / or, the second heat exchange member is formed with a plurality of second plug holes, and the plurality of second plug holes are respectively plugged and matched with the other ends of the plurality of flat tubes.

9. A heat exchanger, characterized in that: A heat exchange core according to any one of claims 1 to 8 is provided.

10. A vehicle, characterized in that: A heat exchanger according to claim 9 is provided.

Images