Heat exchange core body, plate heat exchanger, heat management system and electric equipment

Abstract

The utility model discloses a heat exchange core body, a plate heat exchanger, a heat management system and electric equipment. The heat exchange core body comprises a plurality of first plate bodies and a plurality of second plate bodies, the plurality of second plate bodies and the plurality of first plate bodies are alternately arranged, any first plate body and the second plate body on one side form a refrigerant cavity for circulating a refrigerant, and any first plate body and the second plate body on the other side form a cold liquid cavity for circulating a cold liquid; the second plate body is provided with a plurality of through holes arranged at intervals, and the through holes communicate with the two adjacent refrigerant cavities and are isolated from the cold liquid cavities. And the through holes in the second plate body can communicate with the adjacent refrigerant cavities, so that uniform flow distribution of the refrigerant in the multiple refrigerant cavities is realized, and the heat exchange performance of the heat exchange core body is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of heat exchange, in particular to a heat exchange core, a plate heat exchanger, a thermal management system and an electrical equipment. Background Art

[0002] On the heat exchange plate of the plate heat exchanger, there are a refrigerant inlet hole, a refrigerant outlet hole, a heat medium inlet hole and a heat medium outlet hole. Multiple heat exchange plates are assembled to form independent refrigerant flow channels and heat medium flow channels. The refrigerant in the refrigerant flow channel flows through the plate surface of the heat exchange plate to exchange heat with the heat medium in the heat medium flow channel, thereby realizing the heat exchange function of the plate heat exchanger.

[0003] In the related art, due to the pressure loss in the process of heat exchange fluid flow, the fluid distribution in different laminar flow channels is uneven, which affects the heat exchange effect of the heat exchanger. Summary of the Utility Model

[0004] The utility model aims to solve at least one of the technical problems existing in the prior art. For this purpose, the utility model provides a heat exchange core. The through holes on the second plate body can communicate with the adjacent refrigerant cavities, so as to realize uniform flow distribution of the refrigerant in multiple refrigerant cavities and improve the heat exchange performance of the heat exchange core.

[0005] The utility model further provides a plate heat exchanger.

[0006] The utility model further provides a thermal management system.

[0007] The utility model also provides an electrical equipment.

[0008] The heat exchange core according to the first aspect embodiment of the utility model includes: a plurality of first plate bodies; a plurality of second plate bodies, the plurality of second plate bodies and the plurality of first plate bodies are arranged alternately. Any one of the first plate bodies forms a refrigerant cavity for flowing refrigerant with the second plate body on one side and forms a cold liquid cavity for flowing cold liquid with the second plate body on the other side; a plurality of through holes are arranged on the second plate body at intervals, and the through holes communicate with two adjacent refrigerant cavities and are isolated from the cold liquid cavity.

[0009] For the heat exchange core according to the embodiment of the utility model, the through holes on the second plate body can communicate with the adjacent refrigerant cavities, so as to realize uniform flow distribution of the refrigerant in multiple refrigerant cavities and improve the heat exchange performance of the heat exchange core.

[0010] According to some embodiments of the utility model, a plurality of through-flow channels are arranged on the first plate body. The through-flow channels extend along a first direction. One end of the through-flow channel is connected to the through hole on the second plate body on one side and the other end is connected to the through hole on the second plate body on the other side to communicate with two adjacent refrigerant cavities.

[0011] According to some embodiments of the present utility model, two first orifices are provided on the first plate body, two second orifices are provided on the second plate body, a first orifice passage is formed between the second orifice and the first orifice of the first plate body on one side, and a plurality of the first orifice passages communicate with each other and communicate with the refrigerant cavity.

[0012] According to some embodiments of the present utility model, two third orifices are provided on the first plate body, two fourth orifices are provided on the second plate body, a second orifice passage is formed between the fourth orifice and the third orifice of the first plate body on the other side, and a plurality of the second orifice passages communicate with each other and communicate with the coolant cavity.

[0013] According to some embodiments of the present utility model, in the direction away from the connection line of the two second orifices, the distance between adjacent two of the through holes gradually increases.

[0014] According to some embodiments of the present utility model, in the direction away from the connection line of the two second orifices, the number of the through holes gradually decreases.

[0015] According to some embodiments of the present utility model, in the direction away from the connection line of the two second orifices, the aperture of the through holes gradually decreases.

[0016] According to some embodiments of the present utility model, the heat exchange core further includes: a third plate body, a refrigerant inlet is provided on the third plate body, a refrigerant inlet cavity is formed between the third plate body and the outermost second plate body on one side, the refrigerant inlet cavity communicates with the refrigerant cavity, and the refrigerant inlet communicates with the refrigerant inlet cavity.

[0017] According to some embodiments of the present utility model, the heat exchange core further includes: a fourth plate body, a refrigerant outlet cavity is formed between one side of the fourth plate body and the outermost first plate body on the other side, and the refrigerant outlet cavity communicates with the refrigerant cavity.

[0018] According to some embodiments of the present utility model, the heat exchange core further includes: a fifth plate body, the fifth plate body is connected to the fourth plate body, a coolant inlet and outlet cavity is formed between the fifth plate body and the other side of the fourth plate body, the coolant inlet and outlet cavity communicates with the coolant cavity and is isolated from the refrigerant outlet cavity, a coolant inlet and a coolant outlet are provided on the fifth plate body, and the coolant inlet and the coolant outlet communicate with the coolant inlet and outlet cavity.

[0019] The plate heat exchanger according to the second aspect embodiment of the present utility model includes: the heat exchange core; a refrigerant inlet pipe, which is communicated with the refrigerant cavity and used for inlet of the refrigerant; a refrigerant outlet pipe, which is communicated with the refrigerant cavity and used for outlet of the refrigerant; a cold liquid inlet pipe, which is communicated with the cold liquid cavity and used for inlet of the cold liquid; and a cold liquid outlet pipe, which is communicated with the cold liquid cavity and used for outlet of the cold liquid.

[0020] The thermal management system according to the third aspect embodiment of the present utility model includes: the plate heat exchanger.

[0021] The electrical equipment according to the fourth aspect embodiment of the present utility model includes: the plate heat exchanger or the thermal management system.

[0022] The additional aspects and advantages of the present utility model will be partially given in the following description, partially become obvious from the following description, or be understood through the practice of the present utility model. Description of the Drawings

[0023] The above and / or additional aspects and advantages of the present utility model will become obvious and easy to understand from the description of the embodiments in conjunction with the following drawings, where:

[0024] Figure 1 is the overall schematic diagram of the plate heat exchanger according to the second embodiment of the present utility model;

[0025] Figure 2 is the exploded view of the heat exchange core according to the first embodiment of the present utility model;

[0026] Figure 3 is the cross-sectional view of the plate heat exchanger according to the second embodiment of the present utility model

[0027] Figure 4 is the structural schematic diagram of the first plate body and the second plate body of the present utility model in one direction;

[0028] Figure 5 is the structural schematic diagram of the first plate body and the second plate body of the present utility model in another direction;

[0029] Figure 6 is the structural schematic of the second plate body of the present utility model Figure 1 ;

[0030] Figure 7 is the structural schematic of the second plate body of the present utility model Figure 2 ;

[0031] Figure 8 is the structural schematic of the second plate body of the present utility model Figure 3 .

[0032] Reference numerals:

[0033] 100, plate heat exchanger;

[0034] 10, heat exchange core; 11, first plate body; 111, cross-flow channel; 112, first orifice; 113, third orifice; 12, second plate body; 121, through hole; 122, second orifice; 123, fourth orifice; 13, third plate body; 131, refrigerant inlet; 14, fourth plate body; 15, fifth plate body; 151, cold liquid inlet; 152, cold liquid outlet; 153, refrigerant outlet; 16, refrigerant cavity; 17, cold liquid cavity; 18, refrigerant inlet cavity; 19, refrigerant outlet cavity; 20, cold liquid inlet and outlet cavity; 21, refrigerant inlet pipe; 22, refrigerant outlet pipe; 23, cold liquid inlet pipe; 24, cold liquid outlet pipe. Detailed implementation manners

[0035] The embodiments of the present invention will be described in detail below. The embodiments described with reference to the accompanying drawings are exemplary. The embodiments of the present invention will be described in detail below.

[0036] Below, with reference to Figures 1-8 Describe the heat exchange core 10 according to the embodiments of the present invention. A plate heat exchanger 100 having the above heat exchange core 10 is also proposed; and, a thermal management system having the above plate heat exchanger 100 is further proposed. Furthermore, a vehicle having the above plate heat exchanger 100 or the above thermal management system is further proposed.

[0037] As Figure 2 and Figure 3 shown, the heat exchange core 10 includes: a plurality of first plate bodies 11 and a plurality of second plate bodies 12. The plurality of second plate bodies 12 and the plurality of first plate bodies 11 are alternately arranged. Any first plate body 11 and the second plate body 12 on one side form a refrigerant cavity 16 for flowing refrigerant and form a cold liquid cavity 17 for flowing cold liquid with the second plate body 12 on the other side. That is to say, the plurality of first plate bodies 11 and the plurality of second plate bodies 12 are stacked to form non-communicating refrigerant cavities 16 and cold liquid cavities 17. The refrigerant cavity 16 is used for flowing refrigerant, and the cold liquid cavity 17 is used for flowing cold liquid.

[0038] The plurality of first plate bodies 11 and the plurality of second plate bodies 12 are alternately arranged. When a refrigerant cavity 16 is formed between the first plate body 11 and an adjacent second plate body 12, a plurality of refrigerant cavities 16 are formed in the heat exchange core 10, and the refrigerant cavities 16 are used for flowing refrigerant; when a cold liquid cavity 17 is formed between the first plate body 11 and another adjacent second plate body 12, a plurality of cold liquid cavities 17 are formed in the heat exchange core 10, and the cold liquid cavities 17 are used for flowing cold liquid. The plurality of refrigerant cavities 16 and the plurality of cold liquid cavities 17 are alternately arranged to enable the refrigerant and the cold liquid to exchange heat.

[0039] Reference Figures 2-8 As shown, a plurality of through holes 121 are provided on the second plate body 12 at intervals. The through holes 121 communicate with two adjacent refrigerant cavities 16 and are isolated from the cold liquid cavity 17. Specifically, the plurality of through holes 121 are provided on the second plate body 12 at intervals. The through holes 121 pass through the cold liquid cavity 17 between two adjacent refrigerant cavities 16. The through holes 121 are isolated from the cold liquid cavity 17. The through holes 121 communicate with two adjacent refrigerant cavities 16, so that a plurality of refrigerant through cavities are communicated through the through holes 121, which is conducive to realizing uniform flow distribution of the refrigerant in the plurality of refrigerant cavities 16 and improving the heat exchange performance of the heat exchange core 10.

[0040] Thus, the through holes 121 on the second plate body 12 can communicate with the adjacent refrigerant cavities 16, realizing uniform flow distribution of the refrigerant in the plurality of refrigerant cavities 16 and improving the heat exchange performance of the heat exchange core 10.

[0041] Reference Figures 2-5 As shown, a plurality of through-flow channels 111 are provided on the first plate body 11. The through-flow channels 111 extend along the first direction. One end of the through-flow channel 111 is connected to the through hole 121 on one side of the second plate body 12 and the other end is connected to the through hole 121 on the other side of the second plate body 12 to communicate with two adjacent refrigerant cavities 16. Specifically, the first direction is the direction in which the first plate body 11 and the second plate body 12 are stacked. The plurality of through-flow channels 111 are provided on the first plate body 11 at intervals. One end of the through-flow channel 111 is connected to the through hole 121 on an adjacent second plate body 12, and the other end of the through-flow channel 111 is connected to the through hole 121 on an adjacent other second plate body 12. The number of the through-flow channels 111 is the same as the number of the through holes 121, and the plurality of through-flow channels 111 and the plurality of through holes 121 correspond to each other one by one.

[0042] The through-flow channel 111 is designed with a hollow interior to communicate with two adjacent refrigerant cavities 16. Refrigerant flows inside the through-flow channel 111, and cold liquid flows through the outer periphery of the through-flow channel 111. On the one hand, it can strengthen the turbulence degree of the cold liquid on the cold liquid cavity 17, and on the other hand, it can increase the heat exchange area between the cold liquid and the refrigerant, thereby improving the heat exchange performance of the heat exchange core 10.

[0043] Combined Figures 2-5As shown, two first orifices 112 are provided on the first plate body 11, and two second orifices 122 are provided on the second plate body 12. A first duct is formed between the second orifice 122 and the first orifice 112 of the first plate body 11 on one side. Multiple first ducts communicate with each other and are connected to the refrigerant cavity 16. Specifically, the two first orifices 112 can be provided at two corners of the first plate body 11, the two second orifices 122 can be provided at two corners of the second plate body 12, and the two first orifices 112 and the two second orifices 122 are coaxially arranged respectively. A first duct is formed between the second orifice 122 and the first orifice 112 of the first plate body 11 on one side, and the first duct is used for the refrigerant to flow through. The first duct is connected to the refrigerant cavity 16 so that the refrigerant flows from the first duct to the refrigerant cavity 16.

[0044] As Figures 2-5 shown, two third orifices 113 are provided on the first plate body 11, and two fourth orifices 123 are provided on the second plate body 12. A second duct is formed between the fourth orifice 123 and the third orifice 113 of the first plate body 11 on the other side. Multiple second ducts communicate with each other and are connected to the cold liquid cavity 17. Specifically, the two third orifices 113 can be provided at the other two corners of the first plate body 11, the two fourth orifices 123 can be provided at the other two corners of the second plate body 12, and the two third orifices 113 and the two fourth orifices 123 are coaxially arranged respectively. A second duct is formed between the fourth orifice 123 and the third orifice 113 of the first plate body 11 on one side, and the second duct is used for the cold liquid to flow through. The second duct is connected to the cold liquid cavity 17 so that the cold liquid flows from the second duct to the cold liquid cavity 17.

[0045] In some embodiments, as Figure 6 shown, in the direction away from the connection line of the two second orifices 122, the distance between two adjacent through holes 121 gradually increases. Specifically, if one of the second orifices 122 is for the inlet of the refrigerant and the other second orifice 122 is for the outlet of the refrigerant, then the refrigerant flow rate is the largest on the connection line of the two second orifices 122, and the farther away from the connection line of the two second orifices 122, the relatively smaller the refrigerant flow rate. Therefore, the farther away from the connection line of the two second orifices 122, the larger the distance between two adjacent through holes 121, which can improve the problem that the fluid flow rate is large in the area with a short flow path and small in the area with a long flow path, and further improve the heat exchange performance of the heat exchange core 10.

[0046] In some other embodiments, as Figure 7As shown, in the direction away from the connection line of the two second orifices 122, the number of through holes 121 gradually decreases. Specifically, one of the second orifices 122 is for the inlet of the refrigerant, and the other second orifice 122 is for the outlet of the refrigerant. Then, the refrigerant flow rate is the largest on the connection line of the two second orifices 122, and the farther away from the connection line of the two second orifices 122, the relatively smaller the refrigerant flow rate. Therefore, the farther away from the connection line of the two second orifices 122, the number of through holes 121 decreases, which can improve the problem that the fluid has a large flow rate in the area with a short flow path and a small flow rate in the area with a long flow path, and further improve the heat exchange performance of the heat exchange core 10.

[0047] Or, as Figure 8 shown, in the direction away from the connection line of the two second orifices 122, the aperture of the through holes 121 gradually decreases. Specifically, one of the second orifices 122 is for the inlet of the refrigerant, and the other second orifice 122 is for the outlet of the refrigerant. Then, the refrigerant flow rate is the largest on the connection line of the two second orifices 122, and the farther away from the connection line of the two second orifices 122, the relatively smaller the refrigerant flow rate. Then, the aperture of the through holes 121 gradually decreases, which can improve the problem that the fluid has a large flow rate in the area with a short flow path and a small flow rate in the area with a long flow path, and further improve the heat exchange performance of the heat exchange core 10.

[0048] According to Figure 2 and Figure 3 shown, the heat exchange core 10 further includes: a third plate body 13, a refrigerant inlet 131 is provided on the third plate body 13, a refrigerant inlet cavity 18 is formed between the third plate body 13 and the outermost second plate body 12 on one side, the refrigerant inlet cavity 18 is communicated with the refrigerant cavity 16, and the refrigerant inlet 131 is communicated with the refrigerant inlet cavity 18. Specifically, the third plate body 13 is connected to the outermost second plate body 12 on one side, and can be fixedly connected by brazing. A refrigerant inlet cavity 18 is formed between the third plate body 13 and the second plate body 12, a refrigerant inlet 131 is provided on the third plate body 13, and the refrigerant inlet 131 can be connected to the refrigerant inlet pipe 21 so that the refrigerant flows from the refrigerant inlet pipe 21 into the refrigerant inlet cavity 18. The second orifice 122 on the outermost second plate body 12 communicates the refrigerant inlet cavity 18 and the refrigerant cavity 16, so that the refrigerant flows from the refrigerant inlet cavity 18 into the refrigerant cavity 16 and exchanges heat with the cold liquid in the cold liquid cavity 17 through a plurality of refrigerant cavities 16.

[0049] Combined with Figure 2 and Figure 3As shown, the heat exchange core 10 further includes: a fourth plate body 14, a refrigerant outlet cavity 19 is formed between one side of the fourth plate body 14 and the outermost first plate body 11 on the other side, and the refrigerant outlet cavity 19 is connected to the refrigerant cavity 16. Specifically, four orifices are provided at four corners of the fourth plate body 14, and the four orifices are respectively coaxially arranged with the two first orifices 112 and the two third orifices 113 on the outermost first plate body 11. Two of the orifices are arranged opposite to the two first orifices 112 on the outermost first plate body 11, and are used for the inflow and outflow of the refrigerant. A refrigerant outlet cavity 19 is formed between the fourth plate body 14 and the first plate body 11 on the other side. The refrigerant outlet cavity 19 is connected to the refrigerant cavity 16. The refrigerant flows into the refrigerant cavity 16 from the refrigerant inlet cavity 18, flows through multiple refrigerant cavities 16 and exchanges heat with the cold liquid in the cold liquid cavity 17, and finally flows into the refrigerant outlet cavity 19 and flows out of the heat exchange core 10 from the refrigerant outlet cavity 19.

[0050] like Figure 2 and Figure 3 As shown, the heat exchange core 10 also includes: a fifth plate body 15, which is connected to the fourth plate body 14, and a cold liquid inlet and outlet cavity 20 is formed between the fifth plate body 15 and the other side of the fourth plate body 14, and the cold liquid inlet and outlet cavity 20 is connected to the cold liquid cavity 17 and isolated from the refrigerant outlet cavity 19, and a cold liquid inlet 151 and a cold liquid outlet 152 are provided on the fifth plate body 15, and the cold liquid inlet 151 and the cold liquid outlet 152 are connected to the cold liquid inlet and outlet cavity 20.

[0051] Specifically, the other two holes on the fourth plate body 14 are arranged opposite to the two third holes 113 on the outermost first plate body 11, and a cold liquid cavity 17 is formed between the outermost first plate body 11 and the adjacent second plate body 12 on the side away from the fourth plate body 14. The cold liquid cavity 17 flows to the cold liquid inlet and outlet cavity 20 through the third holes 113, and finally flows out of the heat exchange core 10 from the cold liquid inlet 151 and the cold liquid outlet 152.

[0052] The cold liquid flows through the other two holes on the fourth plate body 14 and flows into the cold liquid inlet and outlet chamber 20. The cold liquid inlet and outlet chamber 20 is not connected to the refrigerant outlet chamber 19. A refrigerant outlet 153 is provided on the fifth plate body 15. The refrigerant outlet 153 is arranged opposite to one of the two holes on the fourth plate body 14, so that the refrigerant in the refrigerant outlet chamber 19 flows through the refrigerant outlet 153 from one of the two holes on the fourth plate body 14 and finally flows out of the heat exchange core 10.

[0053] like Figure 1As shown in the figure, the plate heat exchanger 100 includes: a heat exchange core 10, a refrigerant inlet pipe 21, a refrigerant outlet pipe 22, a coolant inlet pipe 23, and a coolant outlet pipe 24. The refrigerant inlet pipe 21 is communicated with the refrigerant cavity 16 for refrigerant inlet. The refrigerant inlet pipe 21 can be communicated with the refrigerant inlet cavity 18, so the refrigerant inlet pipe 21 can be communicated with multiple refrigerant cavities 16. The refrigerant outlet pipe 22 can be communicated with the refrigerant outlet cavity 19, so the refrigerant outlet pipe 22 can be communicated with multiple refrigerant cavities 16 for refrigerant outlet. The refrigerant flows in from the refrigerant inlet pipe 21, flows through multiple refrigerant cavities 16 in sequence, and finally flows out from the refrigerant outlet pipe 22. The coolant inlet pipe 23 is communicated with the coolant cavity 17 for coolant inlet. The coolant inlet pipe 23 can be communicated with the coolant inlet cavity, so the coolant inlet pipe 23 can be communicated with multiple coolant cavities 17. The coolant outlet pipe 24 can be communicated with the coolant outlet cavity, so the coolant outlet pipe 24 can be communicated with multiple coolant cavities 17 for coolant outlet. The coolant flows in from the coolant inlet pipe 23, flows through multiple coolant cavities 17 in sequence, and finally flows out from the coolant outlet pipe 24. Part of the refrigerant in the heat exchange core 10 can be communicated with adjacent two refrigerant cavities 16 through the through holes 121 on the second plate body 12, realizing uniform flow distribution of the refrigerant in multiple refrigerant cavities 16 and improving the heat exchange performance of the plate heat exchanger 100.

[0054] According to the heat management system of the third aspect embodiment of the present invention, it includes: a plate heat exchanger 100. The plate heat exchanger 100 includes: a heat exchange core 10. Part of the refrigerant in the heat exchange core 10 can be communicated with adjacent two refrigerant cavities 16 through the through holes 121 on the second plate body 12, realizing uniform flow distribution of the refrigerant in multiple refrigerant cavities 16 and improving the heat exchange performance of the heat management system.

[0055] According to the electrical equipment of the fourth aspect embodiment of the present invention, it includes: a plate heat exchanger 100. The plate heat exchanger 100 includes: a heat exchange core 10. Part of the refrigerant in the heat exchange core 10 can be communicated with adjacent two refrigerant cavities 16 through the through holes 121 on the second plate body 12, realizing uniform flow distribution of the refrigerant in multiple refrigerant cavities 16 and improving the heat exchange performance of the electrical equipment.

[0056] In some other embodiments, according to the electrical equipment of the fourth aspect embodiment of the present invention, it includes: a heat management system. The heat management system includes: a plate heat exchanger 100. The plate heat exchanger 100 includes: a heat exchange core 10. Part of the refrigerant in the heat exchange core 10 can be communicated with adjacent two refrigerant cavities 16 through the through holes 121 on the second plate body 12, realizing uniform flow distribution of the refrigerant in multiple refrigerant cavities 16 and improving the heat exchange performance of the electrical equipment.

[0057] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by terms such as "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. is based on the orientation or positional relationship shown in the drawings, and is 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 should not be construed as a limitation to the present utility model.

[0058] In the description of this specification, the description with reference to terms such as "one embodiment", "some embodiments", "schematic embodiments", "examples", "specific examples", or "some examples", etc. means that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example.

[0059] Although the embodiments of the present utility model have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present utility model, and the scope of the present utility model is defined by the claims and their equivalents.

Claims

1. A heat exchange core, characterized in that: include: A plurality of first plates (11); A plurality of second plates (12), wherein the plurality of second plates (12) and the plurality of first plates (11) are arranged alternately, and any of the first plates (11) and the second plates (12) on one side form a refrigerant cavity (16) for circulating refrigerant, and any of the first plates (11) and the second plates (12) on the other side form a refrigerant cavity (17) for circulating refrigerant; The second plate body (12) is provided with a plurality of through holes (121) arranged at intervals, wherein the through holes (121) communicate with two adjacent refrigerant cavities (16) and are isolated from the cold liquid cavity (17).

2. The heat exchange core according to claim 1, characterized in that: A plurality of through-flow channels (111) are provided on the first plate body (11), and the through-flow channels (111) extend along a first direction, one end of the through-flow channel (111) is connected to the through hole (121) on the second plate body (12) on one side, and the other end is connected to the through hole (121) on the second plate body (12) on the other side, so as to connect two adjacent refrigerant cavities (16).

3. The heat exchange core according to claim 1, characterized in that: The first plate body (11) is provided with two first openings (112), and the second plate body (12) is provided with two second openings (122). A first channel is formed between the second opening (122) and the first opening (112) of the first plate body (11) on one side, and the plurality of first channels are interconnected and connected to the refrigerant cavity (16).

4. The heat exchange core according to claim 3, characterized in that: The first plate body (11) is provided with two third orifices (113), the second plate body (12) is provided with two fourth orifices (123), a second channel is formed between the fourth orifice (123) and the third orifice (113) of the first plate body (11) on the other side, and a plurality of the second orifices are interconnected and connected to the cold liquid cavity (17).

5. The heat exchange core according to claim 3, characterized in that: In a direction away from a line connecting the two second openings (122), the distance between two adjacent through holes (121) gradually increases.

6. The heat exchange core according to claim 3, characterized in that: In a direction away from a line connecting the two second openings (122), the number of the through holes (121) gradually decreases.

7. The heat exchange core according to claim 3, characterized in that: In a direction away from a line connecting the two second openings (122), the aperture of the through hole (121) gradually decreases.

8. The heat exchange core according to claim 1, characterized in that: Also includes: A third plate body (13), wherein a refrigerant inlet (131) is provided on the third plate body (13), and a refrigerant inlet cavity (18) is formed between the third plate body (13) and the outermost layer of the second plate body (12) on one side, wherein the refrigerant inlet cavity (18) is communicated with the refrigerant cavity (16), and the refrigerant inlet (131) is communicated with the refrigerant inlet cavity (18).

9. The heat exchange core according to claim 1, characterized in that: Also includes: A fourth plate body (14), a refrigerant outlet cavity (19) is formed between one side of the fourth plate body (14) and the outermost layer of the first plate body (11) on the other side, and the refrigerant outlet cavity (19) is connected to the refrigerant cavity (16).

10. The heat exchange core according to claim 9, characterized in that: Also includes: A fifth plate body (15), wherein the fifth plate body (15) is connected to the fourth plate body (14), and a cold liquid inlet and outlet cavity (20) is formed between the fifth plate body (15) and the other side of the fourth plate body (14), wherein the cold liquid inlet and outlet cavity (20) is communicated with the cold liquid cavity (17) and isolated from the cold medium outlet cavity (19), and a cold liquid inlet (151) and a cold liquid outlet (152) are provided on the fifth plate body (15), and the cold liquid inlet (151) and the cold liquid outlet (152) are communicated with the cold liquid inlet and outlet cavity (20).

11. A plate heat exchanger, characterized in that: include: The heat exchange core (10) according to any one of claims 1 to 10; A refrigerant inlet pipe (21), the refrigerant inlet pipe (21) being in communication with the refrigerant cavity (16) and being used for the refrigerant to enter the liquid; A refrigerant outlet pipe (22), the refrigerant outlet pipe (22) being in communication with the refrigerant cavity (16) and used for the refrigerant to discharge liquid; A cold liquid inlet pipe (23), the cold liquid inlet pipe (23) being in communication with the cold liquid cavity (17) and being used for the cold liquid to be introduced; A cold liquid outlet pipe (24), the cold liquid outlet pipe (24) is in communication with the cold liquid cavity (17) and is used for the cold liquid to be discharged.

12. A thermal management system, characterized in that: include: The plate heat exchanger (100) as claimed in claim 11.

13. An electrical equipment, characterized in that: include: The plate heat exchanger (100) according to claim 11 or the thermal management system according to claim 12.

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