A heat exchanger, a heat exchange component and a thermal management system

Abstract

The present invention discloses a heat exchanger, including a first heat exchange zone and a second heat exchange zone. The heat exchanger includes four plates, wherein the first plate, the third plate, the fourth plate and the second plate are arranged in sequence; the third plate includes a matching hole, and the fourth plate includes a matching hole arranged opposite to and connected to the matching hole of the third plate; the fourth plate includes a matching hole arranged opposite to and connected to the second plate, and the second plate includes a hole arranged opposite to and connected to the fourth plate; a channel in the first heat exchange zone is connected to a channel in the second heat exchange zone through the third plate and the fourth plate. In this way, the two heat exchange zones are conveniently arranged as one, and the two heat exchange zones are conveniently connected. The different requirements of various systems can be realized by changing the structure of the plate, the setting of pipelines can be reduced, and the system connection is simple and convenient.

Description

Technical Field

[0001] The present invention relates to the field of fluid control, and in particular to a heat exchanger, a heat exchange component and a thermal management system. Background Art

[0002] Some thermal management systems include no less than two heat exchangers, such as a plate evaporator. These heat exchangers and components are generally connected by pipes and fixed in the system application. Since there are many components in the system, the pipe connections of the system are relatively complicated. Summary of the invention

[0003] To provide a new heat exchanger, the heat exchanger includes two heat exchange areas, the two heat exchange areas can have different functions respectively, and the volume is small and easy to assemble, and at the same time provide a heat exchange component that is relatively simple to connect when installed and used in the system, the present invention provides the following technical solutions:

[0004] A heat exchanger comprises a first heat exchange zone and a second heat exchange zone, wherein the first heat exchange zone comprises a first plate, the second heat exchange zone comprises a second plate, the heat exchanger further comprises a third plate and a fourth plate, the third plate main body is located between the first plate and the fourth plate, the fourth plate main body is located between the third plate and the second plate, the second heat exchange zone comprises two fluid flow channels, heat exchange can be performed between the two fluid flow channels; the first heat exchange zone comprises a first hole channel and a second hole channel, the second heat exchange zone comprises four holes channel: a first hole channel, a second hole channel, a third hole channel, and a fourth hole channel, the second heat exchange zone has two holes for communication on a side close to the first heat exchange zone: a first hole channel and a second hole, and the second plate comprises the first hole channel and the second hole;

[0005] The fourth plate includes at least two mating holes, the third plate includes a mating hole arranged opposite to a mating hole of the fourth plate, the mating hole of the fourth plate corresponds to and is connected with the mating hole of the third plate; the other mating hole of the fourth plate corresponds to and is connected with a hole of the second plate.

[0006] The third plate may also include at least one matching portion, on which a matching hole is provided; the fourth plate includes at least two matching portions, on which a matching hole is provided respectively; the matching portion of the third plate is arranged opposite to one of the matching portions of the fourth plate and fixed by welding, and the matching hole of the third plate in the matching portion is relatively connected with one of the matching holes of the fourth plate; the second plate includes at least one matching portion, on which one of the holes is provided; the other matching portion of the fourth plate is arranged opposite to the matching portion of the second plate and fixed by welding, and the other matching hole of the fourth plate is connected with the hole of the matching portion of the second plate; the second channel of the first heat exchange zone is connected with a channel of the second heat exchange zone through the third plate and the fourth plate.

[0007] A heat exchange component is also provided, comprising a throttling element, a connecting piece, and a heat exchanger as described in any of the above claims, wherein the throttling element is relatively close to the first heat exchange zone and is fixed or limitedly arranged with the heat exchanger, and the heat exchange component comprises a first interface, a second interface, a third interface, and a fourth interface; the connecting piece is fixedly arranged with the heat exchanger; the second channel of the first heat exchange zone is connected to a fluid flow channel of the second heat exchange zone, the inlet of the throttling element is connected to another fluid flow channel of the second heat exchange zone, and the outlet of the throttling element is connected to the first channel of the first heat exchange zone.

[0008] The first heat exchange zone may include two fluid channels: a refrigerant channel and a coolant channel, the refrigerant channel includes the first channel and the second channel, and the coolant channel of the first heat exchange zone includes a third channel and a fourth channel.

[0009] A thermal management system is also provided, which includes a refrigerant flow channel, and the thermal management system includes a heat exchange component as claimed in claim 6 or 7 above; the thermal management system includes a compressor, a condenser, and at least one evaporator, the outlet of the condenser is connected to the first interface through a pipeline, or a liquid reservoir is included between the outlet of the condenser and the first interface, the inlet of the compressor is connected to the second interface, and the inlet of the evaporator is connected to the third interface, or the vehicle thermal management system also includes a throttling element between the inlet of the evaporator and the third interface, and the outlet of the evaporator is connected to the fourth interface.

[0010] The heat exchanger is provided with four plates so that two heat exchange zones with different functions can be welded to form an integrated structure. The flow direction of the fluid in the heat exchange zone is controlled by setting matching holes in the plates between the two heat exchange zones, so that the second channel of the first heat exchange zone is connected to a channel of the second heat exchange zone. The assembly is relatively convenient and the structure of the heat exchanger can be relatively small. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 , Figure 2 A three-dimensional schematic diagram of a heat exchange component provided by the present invention in two directions;

[0012] Figure 3 is a schematic diagram of the heat exchange component;

[0013] Figure 4 for Figure 3 A schematic diagram of a cross-section of the heat exchange component in the AA direction shown;

[0014] Figure 5 for Figure 4 A partially enlarged schematic diagram of an implementation method of; Figure 6 It is a partially enlarged schematic diagram of another embodiment of the heat exchange component;

[0015] Figure 7 is an exploded schematic diagram of the heat exchange component;

[0016] Figure 8 is an exploded schematic diagram of a second embodiment of a heat exchange assembly;

[0017] Fig. 9 is an exploded schematic diagram of a third embodiment of a heat exchange assembly;

[0018] Fig.10 It is a schematic exploded view of a fourth embodiment of a heat exchange component.

[0019] In the figure: 10 heat exchanger, 102 connecting port, 105 connecting pipe, 11 first plate, 110 main plate surface, 111 first matching part, 112 second matching part, 113 third matching part, 114 fourth matching part, 118 hole, 119 flange part, 12 third plate, 120, 120' main plate surface, 121 first matching part, 122 second matching part, 123 third matching part, 124 fourth matching part, 127 first matching hole, 128 second matching hole, 129 flange part, 13 fourth plate, 130, 130' main plate surface, 131 first matching part A first matching portion, 132 a second matching portion, 133 a third matching portion, 134 a fourth matching portion, 137 a third matching hole, 138 a fourth matching hole, 139 a flange portion, 14 a second plate, 140 a main plate surface, 141 a first matching portion, 142 a second matching portion, 143 a third matching portion, 144 a fourth matching portion, 147 a first hole, 148 a second hole, 15 a first heat exchange zone, 151 a first channel, 152 a second channel, 16 a second heat exchange zone; 161 a first channel, 162 a second channel, 163 a third channel, 164 a fourth channel;

[0020] 20 throttling element, 41 first coolant interface, 42 second coolant interface, 43 first interface, 44 first connection, 45 second connection, 51 first coolant interface, 52 second coolant interface, 53 first interface, 54 second interface, 55 third interface, 56 fourth interface. DETAILED DESCRIPTION

[0021] The technical solution is described below in conjunction with specific implementation methods. Figure 1-Figure 7 As shown, Figure 1 , Figure 2 They are respectively three-dimensional schematic diagrams of a heat exchange component provided by the present invention, Figure 3 is a schematic diagram of the main view of the heat exchange component, Figure 4 for Figure 3 The schematic diagram of the AA section of the heat exchange component shown in FIG. Figure 5 for Figure 4 A partially enlarged schematic diagram of an embodiment of Figure 7 This is an exploded diagram of the heat exchange component. Figure 6 This is a partially enlarged schematic diagram of another embodiment of the heat exchange component. The exploded schematic diagram illustrates the structure in two directions, which is different from the actual processing. This split is mainly to illustrate the structure of this part.

[0022] The heat exchange assembly includes a heat exchanger 10, a throttling element 20, and a connector. The heat exchanger 10 includes a first heat exchange zone 15, a second heat exchange zone 16, a third plate 12, and a fourth plate 13. The main body of the third plate 12 is located between the first heat exchange zone 15 and the second heat exchange zone 16, and the main body of the fourth plate 13 is located between the first heat exchange zone 15 and the second heat exchange zone 16. The first heat exchange zone 15 includes a first plate 11, the second heat exchange zone 16 includes a second plate 14, the main bodies of the third plate 12 and the fourth plate 13 are located between the first plate 11 and the second plate 14, and the third plate 12 is located between the first plate 11 and the fourth plate 13. In this embodiment, the first plate 11, the third plate 12, the fourth plate 13, and the second plate 14 are arranged in sequence.

[0023] The first heat exchange area 15 has a heat exchange core, and the first heat exchange area 15 has two fluid flow channels for fluids to flow through and exchange heat with each other. The two fluid flow channels are separated, and the first heat exchange area 15 includes a plurality of plates. The first heat exchange area 15 may also include fins, which is conducive to heat exchange; the first heat exchange area 15 has interlayer flow channels separated by stacked plates, and the first heat exchange area 15 can flow through at least two fluids, and the two fluids can exchange heat in the first heat exchange area 16, such as one fluid is a refrigerant, and the other can be a coolant, such as a coolant used to cool heating elements such as batteries; in addition, it can also be used for three fluids, such as one fluid is a refrigerant, and the other two can be coolants. The two coolants can be controlled to exchange heat with the refrigerant, and then the coolant can be used to cool the components that need to be cooled after heat exchange and cooling. The first heat exchange area 15 can also have only one fluid flow channel and two channels: the first channel 151 and the second channel 152, such as only connecting the refrigerant flow channel and contacting with other components or media that need heat exchange for heat exchange. The second heat exchange zone 16 has a heat exchange core. The second heat exchange zone 16 includes plates. The second heat exchange zone 16 has two fluid flow channels for fluid to flow through for heat exchange. The two fluid flow channels are separated by stacked plates and can exchange heat. The second heat exchange zone 16 includes interlayer flow channels separated by stacked plates. The second heat exchange zone 16 can flow through at least two fluids. The two fluids can exchange heat in the second heat exchange zone 16, such as both fluids are refrigerants: one fluid is a relatively high temperature refrigerant and the other is a relatively low temperature refrigerant, or one fluid is a refrigerant and the other can be a coolant, such as a coolant used to cool heating elements such as batteries. The second heat exchange zone 16 has four channels: a first channel 161, a second channel 162, a third channel 163, and a fourth channel 164.

[0024] The first plate 11 has a flanged portion 119 that is flanged toward the third plate, the third plate 12 has a flanged portion 129 that is flanged toward the fourth plate, the fourth plate 13 has a flanged portion 139 that is flanged toward the second plate, and the second plate 14 has a flanged portion 149 that is flanged toward the second heat exchange zone. The flanged directions of these plates are consistent and are welded to form a relatively sealed structure, so that the space between the plates will not leak through the four sides. In addition, the flanged directions of these plates can also be opposite, that is, flanged toward the first heat exchange zone.

[0025] The first plate 11 has a first matching portion 111 protruding toward the third plate and a second matching portion 112 recessed toward the first heat exchange zone. The first plate 11 has a hole in the first matching portion 111, and a portion of the connecting pipe 105 passes through the hole, or one end of the connecting pipe 105 can be roughly flush with the hole, and one end of the connecting pipe 105 is welded to the first matching portion, so that the first channel 151 of the first heat exchange zone is not directly connected to the first plate and the space between the third plate and the fourth plate; the first plate 11 has a hole 118 for fluid circulation in the second matching portion 112, and the hole 118 is connected to the second channel 152 of the first heat exchange zone, or the hole 118 is a part of the second channel 152 constituting the first heat exchange zone. The third plate 12 has a first matching portion 121 at a position relative to the first matching portion 111 of the first plate 11, and the first matching portion 121 of the third plate 12 protrudes toward the first plate. The first matching portion 121 of the third plate 12 and the first matching portion 111 of the first plate 11 can be roughly abutted to achieve matching welding, and the third plate 12 has a first matching hole 127 in the first matching portion, and the connecting port 102 of the connecting pipe 105 is connected to the first matching hole 127 of the third plate 12 or the connecting pipe 105 passes through the first matching hole 127 and is match-welded with the first matching portion of the third plate 12. The third plate 12 has a second matching portion 122 at a position relative to the second matching portion 112 of the first plate 11. The second matching portion 122 of the third plate 12 protrudes toward the fourth plate 13. The second matching portion 112 of the first plate 11 is concave toward the first heat exchange zone when viewed from the third plate. The distance between the second matching portion 122 of the third plate 12 and the second matching portion 112 of the first plate 11 is greater than the distance between the second main board surface 120' of the third plate 12 and the main board surface 110 of the first plate 11, so that the space formed between the second matching portion 122 of the third plate 12 and the second matching portion 112 of the first plate 11 can be used for fluid circulation. The third plate 12 also includes a fourth matching portion 124, and the third plate 12 has a second matching hole 128 in the fourth matching portion 124, and the fourth matching portion 124 protrudes toward the fourth plate 13. Relatively speaking, the fourth plate 13 is provided with a fourth matching portion 134 at a position relative to the fourth matching portion 124 of the third plate, and the fourth matching portion 134 protrudes toward the third plate. The fourth matching portion 124 of the third plate 12 is matched and welded with the fourth matching portion 134 of the fourth plate 13, and the second matching hole 128 of the third plate 12 is opposite to and connected with the fourth matching hole 138 of the fourth plate 13.

[0026] The third plate 12 may also have a third matching portion 123, and the third matching portion 123 of the third plate 12 protrudes toward the first plate. In addition, the third plate 12 may also have a second matching portion 122, and the second matching portion 122 of the third plate 12 protrudes toward the fourth plate. The third plate 12 may not be provided with the second matching portion and / or the third matching portion. The fourth plate 13 is provided with a first matching portion 131, a third matching portion 133, and a fourth matching portion 134. The position of the first matching portion 131 of the fourth plate 13 corresponds to the position of the first matching portion 121 of the third plate, and the position of the fourth matching portion 134 of the fourth plate 13 corresponds to the position of the fourth matching portion 124 of the third plate. The first matching portion 131 of the fourth plate 13 protrudes toward the second plate, the third matching portion 133 of the fourth plate 13 protrudes toward the second plate, and the fourth matching portion 134 of the fourth plate 13 protrudes toward the third plate. The fourth matching portion 134 of the fourth plate 13 is matched and welded with the fourth matching portion 124 of the third plate 12 to achieve relative sealing. The fourth plate 13 has a third fitting hole 137 in the third fitting portion 133 , and the fourth plate 13 has a fourth fitting hole 138 in the fourth fitting portion 134 .

[0027] The second plate 14 is provided with a third matching portion 143 and a fourth matching portion 144. The position of the third matching portion 143 of the second plate 14 corresponds to the position of the third matching portion 133 of the fourth plate. The second plate 14 may also be provided with a fourth matching portion 144. The position of the fourth matching portion 144 of the second plate 14 corresponds to the position of the fourth matching portion 134 of the fourth plate. The third matching portion 143 of the second plate 14 protrudes toward the fourth plate. The third matching portion 133 of the fourth plate 13 is matched with the third matching portion 143 of the second plate 14 to achieve relative sealing by welding. The second plate 14 has a first hole 147 for fluid circulation in the third matching portion 143, and the second plate 14 has a second hole 148 for fluid circulation in the fourth matching portion 144. The first hole 147 is connected to the third channel 163 of the second heat exchange zone 16, or the first hole 147 is a part of the third channel 163 of the second heat exchange zone; the second hole 148 is connected to the fourth channel 164 of the second heat exchange zone 16, or the second hole 148 is a part of the fourth channel 164 of the second heat exchange zone. The second plate 14 may also be provided with a first matching portion 141, the first matching portion 141 of the second plate 14 may protrude toward the fourth plate, and the first matching portion 141 of the second plate 14 and the first matching portion 131 of the fourth plate 13 may be matched and welded to achieve relative sealing.

[0028] The space between the second main board surface 120' of the third plate 12 and the main board surface 110 of the first plate 11 is connected to the hole 118 of the first plate, that is, the space between the second main board surface 120' of the third plate 12 and the main board surface 110 of the first plate 11 is connected to the second channel 152 of the first heat exchange zone; the space between the second main board surface 120' of the third plate 12 and the main board surface 110 of the first plate 11 is connected to the second matching hole 128 of the third plate, and is connected to the fourth matching hole 138 of the fourth plate, and is connected to the second hole 148 of the second plate, that is, it is connected to the fourth channel 164 of the second heat exchange zone, and the fourth channel 164 of the second heat exchange zone is connected to the second channel 152 of the first heat exchange zone through the second matching hole 128 of the third plate and the fourth matching hole 138 of the fourth plate. The first matching hole 127 of the third plate is connected to the connecting port 102, and the other side of the connecting port 102 is connected to the throttling element 20; the space between the main board surface 120 of the third plate 12 and the second main board surface 130' of the fourth plate 13 is connected to the first matching hole 127 of the third plate or the connecting port 102 of the pipe 105; the space between the main board surface 120 of the third plate 12 and the second main board surface 130' of the fourth plate 13 is connected to the third matching hole 137 of the fourth plate 13; the third matching hole 137 of the fourth plate 13 is connected to the first hole 147 of the second plate, that is, the third matching hole 137 of the fourth plate 13 is connected to the third channel 163 of the second heat exchange zone; that is, the third channel 163 of the second heat exchange zone is connected to the connecting port 102 through the first matching hole 127 of the third plate and the third matching hole 137 of the fourth plate.

[0029] The connecting member includes a first interface portion 43, a first connecting portion 44, and a second connecting portion 45. The first interface portion 43 is provided with a first interface 53, the first connecting portion 44 is provided with a second interface 54, and the second connecting portion 45 is provided with a third interface 55 and a fourth interface 56. In a specific automobile air-conditioning system, a high-temperature and high-pressure refrigerant can flow from the first interface 53 into the first channel 161 of the second heat exchange zone 16, perform heat exchange with a relatively low-temperature refrigerant in another fluid flow channel in the second heat exchange zone 16, and then flow to the third channel 163. In the third channel 163 of the second heat exchange zone 16, the refrigerant can be divided into two parts: one part flows to the evaporator of the system through the third interface 55 or flows to the evaporator of the system through the throttling element. After evaporation in the evaporator, the refrigerant passes through the fourth interface 56 to the second channel 162 of the second heat exchange zone 16, and performs heat exchange with a relatively high-temperature refrigerant in another fluid flow channel; the other part of the refrigerant passes through The third matching hole 137 of the fourth plate 13, the space between the third plate and the fourth plate, and the connecting port 102 reach the throttling element 20, and then reach the first channel 151 of the first heat exchange zone after throttling by the throttling element 20, and heat exchange with the medium of another fluid flow channel such as coolant in the first heat exchange zone 15 to the second channel 152 of the first heat exchange zone, and after heat exchange in the first heat exchange zone 15, it passes through the space between the first plate and the third plate, the second matching hole 128 of the third plate, the fourth matching hole 138 of the fourth plate, and the fourth channel 164 of the second heat exchange zone, and flows out through the second interface 54 and flows to the compressor. Of course, it can also pass through components such as a vapor-liquid separator and then return to the compressor.

[0030] In this scheme, the heat exchanger is provided with four plates so that two heat exchange areas with different functions can form an integrated structure through welding. The flow direction of the refrigerant between the two heat exchange areas is controlled by setting the matching parts and matching holes of the plates. When the refrigerant flows in different directions, the local structure of the plates can be changed. For example, by changing the matching parts of the plates and the matching holes used for conduction, the needs of different system connections can be met, and the structure of the heat exchanger can be relatively small.

[0031] In addition, holes can also be set at the matching position, such as Figure 6As shown, the difference between this embodiment and the above-mentioned embodiment includes that the second plate is also provided with a hole 145 in its first matching part, the fourth plate is not provided with a hole in its first matching part, the first matching part of the second plate is relatively matched with the first matching part of the fourth plate and relative sealing is achieved through welding, and the opposite can also be true, that is, the fourth plate is provided with a hole in its first matching part, and the second plate is not provided with a hole in its first matching part, which can also be achieved in the same way. In addition, the connecting pipe 105 with the connecting port 102 can also extend out of the first heat exchange zone. The connecting pipe 105 can be welded with the first matching part of the first plate to achieve relative sealing, and the connecting pipe 105 can also extend into the first matching hole 127 of the third plate and welded with the first matching part of the third plate to achieve relative sealing. Here, the first matching hole 127 of the third plate is matched with the connecting pipe 105 and is no longer used for conduction.

[0032] Specific embodiments can also be as follows Figure 8 As shown, Figure 8 The exploded schematic diagram of the second embodiment of the heat exchange assembly also illustrates two directions. This embodiment can refer to the above embodiment. The heat exchanger 10 includes a first heat exchange zone 15, a second heat exchange zone 16, a third plate 12, and a fourth plate 13. The main body of the third plate 12 and the main body of the fourth plate 13 are located between the first plate and the second plate. The first heat exchange zone 15 includes a first plate 11, the second heat exchange zone 16 includes a second plate 14, and the third plate 12 is located between the first plate 11 and the fourth plate 13. In this embodiment, the first plate 11, the third plate 12, the fourth plate 13, and the second plate 14 are arranged in sequence.

[0033] The first plate 11 has a first matching portion 111 protruding toward the third plate, a second matching portion 112 concave toward the first heat exchange zone, and the first plate 11 may also be provided with a third matching portion 113. The first plate 11 has a through hole in the first matching portion 111, through which a part of the pipe 105 passes, or one end of the pipe 105 may be roughly flush with the through hole and welded with the first matching portion 111 to achieve relative sealing; the first plate 11 has a hole 118 for fluid flow in the second matching portion 112, the hole 118 is connected with the second channel 152 of the first heat exchange zone, or the hole 118 is a part of the second channel 152 of the first heat exchange zone. The third plate 12 has a first matching portion 121 at a position relative to the first matching portion 111 of the first plate 11, the first matching portion 121 of the third plate 12 protrudes toward the first plate, and the first matching portion 121 of the third plate 12 is welded with the first matching portion 111 of the first plate 11 to achieve relative sealing. The third plate 12 has a second matching portion 122 at a position relative to the second matching portion 112 of the first plate 11, the second matching portion 122 of the third plate 12 protrudes toward the fourth plate 13, the second matching portion 112 of the first plate 11 is a structure concave toward the first heat exchange zone when viewed from the third plate, and the distance between the second matching portion 122 of the third plate 12 and the second matching portion 112 of the first plate 11 is greater than the distance between the second main board surface 120' of the third plate 12 and the main board surface 110 of the first plate 11. The third plate 12 may also include a third matching portion 123, the third matching portion 123 of the third plate 12 protrudes toward the first plate 11. The third plate 12 has a first matching hole 127 in the first matching part, and the third plate 12 has a second matching hole 128 in the second matching part 122. The connecting port 102 of the connecting pipe 105 is connected to the first matching hole 127 of the third plate 12, or the connecting port 102 of the connecting pipe 105 is connected to the space between the third plate and the fourth plate; the second matching hole 128 of the third plate 12 is connected to the part of the second channel 152 of the first heat exchange zone that is relatively close to the third plate. The second matching part of the first plate and the second matching part of the third plate may not be provided, as long as a hole is provided at this part to enable fluid communication, that is, the second channel 152 of the first heat exchange zone can be connected to the second heat exchange zone through the hole of the first plate for communication, the space between the first plate and the third plate, the matching hole of the third plate, and the matching hole of the fourth plate. The fourth plate 13 is provided with a second matching portion 132 at a position relative to the second matching portion 122 of the third plate, the second matching portion 132 of the fourth plate 13 protrudes toward the third plate, and the second matching portion 122 of the third plate 12 and the second matching portion 132 of the fourth plate 13 are matched and welded to achieve relative sealing; the fourth plate 13 can be provided with a third matching portion 133 at a position relative to the third matching portion 123 of the third plate, and the third matching portion 132 of the fourth plate 13 protrudes toward the second plate. The fourth plate 13 has a fourth matching hole 138 at the second matching portion 132, and the fourth plate 13 has a third matching hole 137 at the third matching portion 133.

[0034] The second plate 14 is provided with a second matching portion 142 and a third matching portion 143. The second matching portion 142 of the second plate 14 is located opposite to the second matching portion 132 of the fourth plate. The third matching portion 143 of the second plate 14 is located opposite to the third matching portion 133 of the fourth plate. The third matching portion 143 of the second plate 14 protrudes toward the fourth plate. The second plate 14 has a first hole 147 for fluid circulation in the third matching portion 143, and the second plate 14 has a second hole 148 for fluid circulation in the second matching portion 142. The first hole 147 of the second plate 14 is connected to the third channel 163 of the second heat exchange zone 16, or the first hole 147 is a part of the third channel 163 of the second heat exchange zone; the second hole 148 is connected to the second channel 162 of the second heat exchange zone 16, or the second hole 148 is a part of the second channel 162 of the second heat exchange zone. The third matching portion 133 of the fourth plate 13 is matched with the third matching portion 143 of the second plate 14 by welding to achieve relative sealing.

[0035] The second plate 14 may also be provided with a first matching portion 141, and correspondingly, the fourth plate is provided with a first matching portion 131, the position of the first matching portion 141 of the second plate 14 corresponds to the position of the first matching portion 131 of the fourth plate, the first matching portion 141 of the second plate 14 may protrude toward the fourth plate, the first matching portion 131 of the fourth plate 13 protrudes toward the second plate, and the first matching portion 131 of the fourth plate 13 cooperates with the first matching portion 141 of the second plate 14 to achieve relative sealing. Alternatively, the second plate 14 may also be provided with a fourth matching portion 144, and correspondingly, the fourth matching portion 134 is provided on the fourth plate, the position of the fourth matching portion 144 of the second plate 14 corresponds to the position of the fourth matching portion 134 of the fourth plate, the fourth matching portion 144 of the second plate 14 protrudes toward the fourth plate, the fourth matching portion 134 of the fourth plate 13 protrudes toward the second plate, and the fourth matching portion 134 of the fourth plate 13 cooperates with the fourth matching portion 144 of the second plate 14 to achieve relative sealing. The second plate may or may not be provided with a hole in the first matching portion or the fourth matching portion.

[0036] The second mating hole 128 of the third plate 12 is connected to the fourth mating hole 138 of the fourth plate 13, the space between the second main board surface 120' of the third plate 12 and the main board surface 110 of the first plate 11 is connected to the second mating hole 128 of the third plate, and is connected to the fourth mating hole 138 of the fourth plate, and is connected to the second hole 148 of the second plate, that is, it is connected to the second channel 162 of the second heat exchange zone, and the second channel 162 of the second heat exchange zone is connected to the second channel 152 of the first heat exchange zone through the second mating hole 128 of the third plate and the fourth mating hole 138 of the fourth plate. The first matching hole 127 of the third plate is connected to the connecting port 102, and the other side of the connecting port 102 is connected to the throttling element 20; the space between the main plate surface 120 of the third plate 12 and the second main plate surface 130' of the fourth plate 13 is connected to the first matching hole 127 of the third plate, and is connected to the third matching hole 137 of the fourth plate 13; the third matching hole 137 of the fourth plate 13 is connected to the first hole 147 of the second plate, that is, the third matching hole 137 of the fourth plate 13 is connected to the third channel 163 of the second heat exchange zone; that is, the third channel 163 of the second heat exchange zone is connected to the connecting port 102 through the first matching hole 127 of the third plate and the third matching hole 137 of the fourth plate. The flanges of these plates are also facing the same side and are fixed by welding and relatively sealed.

[0037] The connecting member also includes a first interface portion 43, a first connecting portion 44, and a second connecting portion 45. The first interface portion 43 is provided with a first interface 53, the first connecting portion 44 is provided with a second interface 54, and the second connecting portion 45 is provided with a third interface 55 and a fourth interface 56. In a specific automobile air conditioning system, the first interface portion 43 can be connected to the outlet of the compressor, the first connecting portion 44 can be connected to the inlet of the compressor, the second interface 54 can be connected to the return air port of the compressor, the second connecting portion 45 can be connected to the inlet and outlet of the evaporator, the third interface 55 can be connected to the evaporator or throttling element of the system, and the fourth interface 56 can be connected to the outlet of the evaporator of the system or the outlet of the vapor-liquid separator. When the system is running, high-temperature and high-pressure refrigerant comes out of the compressor and can flow from the first interface 53 into the first channel 161 of the connected second heat exchange area 16 to the third channel 163, and perform heat exchange with the relatively low-temperature refrigerant in another fluid flow channel in the second heat exchange area 16. In the third channel 163 of the second heat exchange area 16, the refrigerant can be divided into two parts: one part flows to the evaporator of the system through the third interface 55 or flows to the evaporator of the system through a throttling element, or is divided into two evaporators after throttling. The refrigerant after evaporation in the evaporator passes through the fourth interface 56 to the second channel 162 of the second heat exchange area 16 and flows to the fourth channel 164, and performs heat exchange with the relatively high-temperature refrigerant in another fluid flow channel; the other part of the refrigerant flows through the first hole 147 of the second plate, the third matching hole 137 of the fourth plate 13, and the first matching hole 147 of the third plate The space between the first main plate surface 120 and the second main plate surface 130' of the fourth plate, through the connecting port 102 to the throttling element 20, after throttling by the throttling element 20, then to the first channel 151 of the first heat exchange zone, relatively close to the throttling element side, in the first heat exchange zone 15, heat exchange is performed with the medium of another fluid flow channel, such as coolant, to the second channel 152 of the first heat exchange zone, and then through the second matching hole 128 of the third plate, the fourth matching hole 138 of the fourth plate, and the second hole 148 of the second plate to the second channel 162 of the second heat exchange zone, and merge with the refrigerant coming back from the fourth interface 56 to flow to the fourth channel 164, heat exchange is performed with the refrigerant of another fluid flow channel, and flows out through the second interface 54 connected to the fourth channel 164 and flows to the compressor, and of course, it can also return to the compressor after passing through components such as a vapor-liquid separator. In this embodiment, the low-temperature refrigerants at the two locations are heat exchanged with the relatively high-temperature refrigerant after merging. Other structures and working methods can refer to the first embodiment above.

[0038] The third embodiment is described below. Fig. 9 As shown, Fig. 91 is an exploded schematic diagram of the third embodiment of the heat exchange assembly. The heat exchanger 10 also includes a first heat exchange zone 15, a second heat exchange zone 16, a third plate 12, and a fourth plate 13. The main bodies of the third plate 12 and the fourth plate 13 are located between the first heat exchange zone 15 and the second heat exchange zone 16. The first heat exchange zone 15 includes a first plate 11, the second heat exchange zone 16 includes a second plate 14, the third plate 12 and the fourth plate 13 are located between the third plate 12 and the second plate 14, the third plate 12 is located between the first plate 11 and the fourth plate 13, and the first plate 11, the third plate 12, the fourth plate 13, and the second plate 14 are arranged in sequence.

[0039] The first plate 11 has a first matching portion 111 protruding toward the third plate, and may have a second matching portion 112 concave toward the first heat exchange zone. In addition, the first plate 11 may also be provided with a third matching portion 113 or a fourth matching portion 114. The first plate 11 has a through hole in the first matching portion 111, and a portion of the pipe 105 passes through the through hole, or one end of the pipe 105 may be roughly flush with the through hole and relatively sealed by welding with the first matching portion 111, and one end of the pipe 105 may also be relatively sealed by welding with the third plate, and the pipe and the first plate may be relatively sealed by welding. The first plate 11 has a hole 118 for fluid circulation in the second matching portion 112, and the hole 118 is connected to the second channel 152 of the first heat exchange zone, or the hole 118 is a part of the second channel 152 constituting the first heat exchange zone. The third plate 12 is provided with a plurality of concave and convex portions in the main board area, and the concave and convex portions may also be provided on the fourth plate, etc. The third plate 12 has a first matching portion 121 at a position relative to the first matching portion 111 of the first plate 11. The first matching portion 121 of the third plate 12 can protrude toward the first plate. The first matching portion 121 of the third plate 12 and the first matching portion 111 of the first plate 11 can be relatively sealed by matching welding or matched welding and sealing with the pipe. The third plate 12 has a second matching portion 122 at a position relative to the second matching portion 112 of the first plate 11. The second matching portion 122 of the third plate 12 protrudes toward the fourth plate 13. The second matching portion 112 of the first plate 11 can be concave toward the first heat exchange zone when viewed from the third plate.

[0040] The third plate 12 may also include a third matching portion 123 or a fourth matching portion 124. The third plate 12 has a first matching hole 127 at the first matching portion for conducting or matching with the connecting pipe, and the third plate 12 has a second matching hole 128 at the second matching portion 122. The connecting port 102 of the connecting pipe 105 is connected to the first matching hole 127 of the third plate 12, or the connecting pipe is matched and welded with the hole of the second matching portion of the third plate, or the connecting port 102 of the connecting pipe 105 is connected to the space between the third plate and the fourth plate; the second matching hole 128 of the third plate 12 is connected to the hole 118 of the first plate, and the second matching hole 128 of the third plate 12 is connected to the part of the second channel 152 of the first heat exchange zone that is relatively close to the third plate.

[0041] The fourth plate 13 is provided with a first matching portion 131, which can be provided at a position opposite to the first matching portion 121 of the third plate, or at other free positions. The fourth plate 13 is provided with a second matching portion 132 at a position opposite to the second matching portion 122 of the third plate, and the second matching portion 132 of the fourth plate 13 protrudes toward the third plate. The second matching portion 122 of the third plate 12 and the second matching portion 132 of the fourth plate 13 are matched and welded to achieve relative sealing. The fourth plate 13 has a fourth matching hole 138 in the second matching portion 132, and the fourth plate 13 has a third matching hole 137 in the first matching portion 131.

[0042] The second plate 14 is provided with a first matching portion 141 and a fourth matching portion 144. The first matching portion 141 of the second plate 14 is located opposite to the first matching portion 131 of the fourth plate, and the first matching portion 141 of the second plate 14 protrudes toward the fourth plate. The second plate 14 has a first hole 147 for fluid circulation in the first matching portion 141, and a second hole 148 for fluid circulation in the fourth matching portion 144. The first hole and the second hole are holes for communication of a fluid flow channel in the second heat exchange zone. The first hole 147 of the second plate 14 is connected to the first channel 161 of the second heat exchange zone 16, or the first hole 147 is a part of the first channel 161 constituting the second heat exchange zone; the second hole 148 is connected to the fourth channel 164 of the second heat exchange zone 16, or the second hole 148 is a part of the fourth channel 164 constituting the second heat exchange zone.

[0043] The second plate 14 may also be provided with a third matching portion 143. The position of the first matching portion 141 of the second plate 14 corresponds to the position of the first matching portion 131 of the fourth plate, the first matching portion 141 of the second plate 14 protrudes toward the fourth plate, the first matching portion 131 of the fourth plate 13 protrudes toward the second plate, and the first matching portion 131 of the fourth plate 13 and the first matching portion 141 of the second plate 14 are matched and welded to achieve relative sealing. The fourth matching portion 144 of the second plate 14 is concavely arranged toward the second heat exchange zone.

[0044] The second matching hole 128 of the third plate 12 is connected to the fourth matching hole 138 of the fourth plate 13, the space between the second main plate surface 120' of the third plate 12 and the main plate surface 110 of the first plate 11 is connected to the first matching hole 127 of the third plate or the connecting port, and is connected to the third matching hole 137 of the fourth plate, and is connected to the first hole 147 of the second plate, that is, it is connected to the first channel 161 of the second heat exchange zone, the first channel 161 of the second heat exchange zone is connected to the connecting port 102 through the first matching hole 127 of the third plate and the third matching hole 137 of the fourth plate, and the other side of the connecting port 102 is connected to the throttling element 20. The second matching hole 128 of the third plate is connected to the second channel 152 of the first heat exchange zone; the space between the main board surface 120 of the third plate 12 and the second main board surface 130' of the fourth plate 13 is connected to the first matching hole 127 of the third plate or to the connecting port 102, and the space between the main board surface 120 of the third plate 12 and the second main board surface 130' of the fourth plate 13 is connected to the third matching hole 137 of the fourth plate; the third matching hole 137 of the fourth plate 13 is connected to the first hole 147 of the second plate, that is, the third matching hole 137 of the fourth plate 13 is connected to the first channel 161 of the second heat exchange zone; the first channel 161 of the second heat exchange zone is connected to the connecting port 102 through the first matching hole 127 of the third plate, the third matching hole 137 of the fourth plate, or the first channel 161 of the second heat exchange zone is connected to the connecting port 102 through the third matching hole 137 of the fourth plate.

[0045] The connector of this embodiment includes a first interface portion 43, a first connection portion 44, and a second connection portion 45. The first interface portion 43 is provided with a first interface 53, the first connection portion 44 is provided with a second interface 54, and the second connection portion 45 is provided with a third interface 55 and a fourth interface 56. In a specific automobile air conditioning system, the first interface portion 43 can be communicated with the outlet of the compressor, the second interface 54 of the first connection portion 44 can be communicated with the return air port of the compressor, the third interface 55 of the second connection portion 45 can be communicated with the evaporator or throttling element of the system, and the fourth interface 56 can be communicated with the outlet of the evaporator of the system or the outlet of the vapor-liquid separator. When the system is running, the high-temperature and high-pressure refrigerant can flow from the first interface 53 into the second channel 162 (not shown in the figure) of the second heat exchange zone 16, perform heat exchange with the relatively low-temperature refrigerant of another fluid flow channel in the second heat exchange zone 16, and then go to the first channel 161. In the first channel 161 of the second heat exchange zone 16, the refrigerant is divided into two parts: one part flows to the evaporator of the system through the third interface 55 or flows to the evaporator of the system through the throttling element, or is divided into two evaporators after throttling. The refrigerant after evaporation in the evaporator passes through the fourth interface 56 to the fourth channel 164 of the connected second heat exchange zone 16, and performs heat exchange with the relatively high-temperature refrigerant of another fluid flow channel; the other part of the refrigerant passes through the first hole 147 of the second plate, the third matching hole 137 of the fourth plate 13, and the space between the first main board surface 120 of the third plate and the second main board surface 130' of the fourth plate Sometimes, the first matching hole 127 of the third plate goes through the connecting port 102 to the throttling element 20, and then goes to the first channel 151 of the first heat exchange zone relatively close to the throttling element side after throttling by the throttling element 20, and exchanges heat with the medium of another fluid flow channel such as coolant in the first heat exchange zone 15, and goes to the second channel 152 of the first heat exchange zone, and passes through the second matching hole 128 of the third plate, the fourth matching hole 138 of the fourth plate, the space between the first main plate surface 130 of the fourth plate and the main plate surface 140 of the second plate, and the second hole 148 of the second plate to the fourth channel 164 of the second heat exchange zone, and merges with the refrigerant coming back from the fourth interface 56 to flow to the third channel 163, exchanges heat with the refrigerant of another fluid flow channel, and flows out through the second interface 54 connected to the third channel 163 and flows to the compressor, and of course, it can also go through the gas-liquid separator and other components and then return to the compressor. Other structures and methods of this embodiment can refer to the first embodiment above.

[0046] In the second and third embodiments above, the relatively low temperature refrigerant performs heat exchange with the relatively high temperature refrigerant in the second heat exchange zone. Alternatively, the local low temperature refrigerant may participate in the heat exchange in the second heat exchange zone, such as Fig.10 , Fig.10 It is a schematic exploded view of a fourth embodiment of a heat exchange component.

[0047] The heat exchanger 10 also includes a first heat exchange area 15, a second heat exchange area 16, a third plate 12, and a fourth plate 13. The first plate 11, the third plate 12, the fourth plate 13, and the second plate 14 are arranged in sequence. The first plate 11 has a first matching portion 111 protruding toward the third plate, and a second matching portion 112 concave toward the first heat exchange area. In addition, the first plate 11 can also be provided with a third matching portion 113 and a fourth matching portion 114. The first plate 11 has a through hole in the first matching portion 111 that matches the pipe 105. One end of the pipe 105 can be roughly flush with the through hole and welded with the first matching portion 111 to be relatively sealed. One end of the pipe 105 can also be welded with the third plate to be relatively sealed. At the same time, the pipe is welded with the first plate to be relatively sealed. The first plate 11 has a hole 118 for fluid circulation in the second matching portion 112. The hole 118 is a part of the second channel 152 that constitutes the first heat exchange area. The third plate 12 or the fourth plate is provided with a plurality of concave and convex parts in the main board area. The third plate 12 has a first matching portion 121 at a position relative to the first matching portion 111 of the first plate 11. The first matching portion 121 of the third plate 12 can protrude toward the first plate. The first matching portion 121 of the third plate 12 and the first matching portion 111 of the first plate 11 can be relatively sealed by matching welding, or the pipe can match the first matching portion of the third plate and be relatively sealed by welding. The third plate 12 is provided with a second matching portion 122, and the second matching portion 122 of the third plate 12 protrudes toward the fourth plate 13. The third plate 12 may also include a third matching portion 123 or a fourth matching portion 124. The third plate 12 has a first matching hole 127 in the first matching part, and the third plate 12 has a second matching hole 128 in the second matching part 122. The connecting port 102 of the connecting pipe 105 is connected with the first matching hole 127 of the third plate 12, or the connecting pipe is matched and welded with the hole of the second matching part of the third plate, or the connecting port 102 of the connecting pipe 105 is connected with the space between the third plate and the fourth plate; the second matching hole 128 of the third plate 12 is connected with the hole 118 of the first plate, and the second matching hole 128 of the third plate 12 is connected with the part of the second channel 152 of the first heat exchange zone that is relatively close to the third plate.

[0048] The fourth plate 13 is provided with a first matching portion 131, which can be set at a position opposite to the first matching portion 121 of the third plate. Since this flow path is connected through the space between the third plate and the fourth plate, the position of the matching portion and the matching hole can be adjusted according to the structure of the first heat exchange zone and the second heat exchange zone, or according to the structure of the first exchange plate and the second plate, that is, it can be set at other free positions, which is relatively convenient for adjustment. The fourth plate 13 is provided with a second matching portion 132 at a position opposite to the second matching portion 122 of the third plate. The second matching portion 132 of the fourth plate 13 protrudes toward the third plate. The second matching portion 122 of the third plate 12 and the second matching portion 132 of the fourth plate 13 are matched and welded to achieve relative sealing. The fourth plate 13 has a fourth matching hole 138 in the second matching portion 132, and the fourth plate 13 has a third matching hole 137 in the first matching portion 131. In addition, the first matching portion 131 of the fourth plate 13 can also be a hole that matches the pipe.

[0049] The second plate 14 is provided with a first matching portion 141 and a third matching portion 143. The first matching portion 141 of the second plate 14 is located opposite to the first matching portion 131 of the fourth plate, and the first matching portion 141 of the second plate 14 protrudes toward the fourth plate. The second plate 14 has a first hole 147 through which fluid can flow in the first matching portion 141, and the second plate 14 has a second hole 148 through which fluid can flow in the third matching portion 143. The first hole 147 of the second plate 14 is connected to the first channel 161 of the second heat exchange zone 16, or the first hole 147 is a part of the first channel 161 of the second heat exchange zone; the second hole 148 is connected to the third channel 163 of the second heat exchange zone 16, or the second hole 148 is a part of the third channel 163 of the second heat exchange zone.

[0050] The second plate 14 may also be provided with a third matching portion or a fourth matching portion 144. The position of the first matching portion 141 of the second plate 14 corresponds to the position of the first matching portion 131 of the fourth plate, the first matching portion 141 of the second plate 14 protrudes toward the fourth plate, the first matching portion 131 of the fourth plate 13 protrudes toward the second plate, and the first matching portion 131 of the fourth plate 13 is matched with the first matching portion 141 of the second plate 14 by welding to achieve relative sealing. The third matching portion 143 of the second plate 14 is concavely arranged toward the second heat exchange zone.

[0051] The second matching hole 128 of the third plate 12 is connected to the fourth matching hole 138 of the fourth plate 13, and the third matching hole 137 of the fourth plate is connected to the first hole 147 of the second plate, that is, it is connected to the first channel 161 of the second heat exchange zone. The first channel 161 of the second heat exchange zone is connected to the connecting port 102 through the first matching hole 127 of the third plate and the third matching hole 137 of the fourth plate, and the other side of the connecting port 102 is connected to the throttling element 20. The second matching hole 128 of the third plate is connected to the second channel 152 of the first heat exchange zone; the space between the main board surface 120 of the third plate 12 and the second main board surface 130' of the fourth plate 13 is connected to the first matching hole 127 of the third plate or to the connecting port 102, and the space between the main board surface 120 of the third plate 12 and the second main board surface 130' of the fourth plate 13 is connected to the third matching hole 137 of the fourth plate; the third matching hole 137 of the fourth plate 13 is connected to the first hole 147 of the second plate, that is, the third matching hole 137 of the fourth plate 13 is connected to the first channel 161 of the second heat exchange zone; the first channel 161 of the second heat exchange zone is connected to the connecting port 102 through the first matching hole 127 of the third plate, the third matching hole 137 of the fourth plate, or the first channel 161 of the second heat exchange zone is connected to the connecting port 102 through the third matching hole 137 of the fourth plate.

[0052] The connector of this embodiment includes a first interface portion 43, a first connection portion 44, and a second connection portion 45. The first interface portion 43 is provided with a first interface 53, the first connection portion 44 is provided with a second interface 54, and the second connection portion 45 is provided with a third interface 55 and a fourth interface 56. When applied to a specific automobile air conditioning system, the first interface portion 43 can be communicated with the outlet of the compressor, the second interface 54 of the first connection portion 44 can be communicated with the return air port of the compressor, the third interface 55 of the second connection portion 45 can be communicated with the evaporator or throttling element of the system, and the fourth interface 56 can be communicated with the outlet of the evaporator of the system or the outlet of the vapor-liquid separator. When the system is running, the high-temperature and high-pressure refrigerant can flow from the first interface 53 into the second channel 162 (not shown in the figure) of the connected second heat exchange zone 16, exchange heat with the relatively low-temperature refrigerant in another fluid flow channel in the second heat exchange zone 16, and then go to the first channel 161. In the first channel 161 of the second heat exchange zone 16, the refrigerant is divided into two parts: one part flows to the evaporator of the system through the third interface 55 or flows to the evaporator of the system through the throttling element, or is divided into two evaporators after throttling. The refrigerant after evaporation in the evaporator passes through the fourth interface 56 to the fourth channel 164 of the second heat exchange zone 16, and exchanges heat with the relatively high-temperature refrigerant in another fluid flow channel; the other part of the refrigerant passes through the first hole 147 of the second plate, the third matching hole 137 of the fourth plate 13, the first main plate surface 120 of the third plate and the fourth plate The space between the second main plate surface 130' or the first matching hole 127 of the third plate, through the connecting port 102 to the throttling element 20, after throttling by the throttling element 20, to the first channel 151 of the first heat exchange zone, relatively close to the throttling element side, in the first heat exchange zone 15, heat is exchanged with the medium of another fluid flow channel such as coolant, to the second channel 152 of the first heat exchange zone, and through the second matching hole 128 of the third plate, the fourth matching hole 138 of the fourth plate, the space between the first main plate surface 130 of the fourth plate and the main plate surface 140 of the second plate, the second hole 148 of the second plate to the fourth channel 164 of the second heat exchange zone, and merge with the refrigerant coming from the fourth channel, and flow out through the second interface 54 connected to the third channel 163 and flow to the compressor, and of course, it can also return to the compressor after passing through components such as a vapor-liquid separator. Other structures and methods of this embodiment can refer to the third embodiment above.

[0053] In the above embodiment, there are four interfaces for connecting the refrigerant, and there may also be 5 or 6 interfaces. For example, if the system has two evaporators, two interfaces lead to the two evaporators or the throttling element and the evaporator, and or two interfaces are connected to the evaporator outlet. In addition, the connector may also be an integral structure, rather than a combination of multiple components as in the embodiment.

[0054] The above heat exchanger can be used for a heat exchange component, and the heat exchange component can have a first coolant interface part 41 and a second coolant interface part 42. The first coolant interface part 41 has a first coolant interface 51, and the second coolant interface part 42 has a second coolant interface 52. The first coolant interface 51 and the second coolant interface 52 are connected through the coolant flow channel of the first heat exchange zone, and can exchange heat with the medium of another fluid flow channel, i.e., the refrigerant flow channel. The first coolant interface part 41 and the second coolant interface part 42 are fixedly connected to the heat exchanger by welding. Specifically, the first coolant interface part 41 and the second coolant interface part 42 are arranged on a side relatively close to the first heat exchange zone, and are welded to the side plate of the heat exchanger. The refrigerant flow channel of the first heat exchange zone of the above-mentioned component can be a single flow, that is, flowing from the first channel 151 to the second channel 152, and can also be a three-flow or even a five-flow. For example, in the case of a three-flow, the first heat exchange zone is roughly divided into three parts, the first channel 151 is divided into a first part close to the throttling element and a second part relatively close to the third plate, and the second part of the first channel 151 is longer than the first part; the second channel 152 is divided into a first part close to the throttling element and a second part relatively close to the third plate, and the second part of the second channel 152 is shorter than the first part; the first flow flows from the first part of the first channel 151 to the first part of the second channel 152, and then flows from the first part of the second channel 152 relatively close to the middle part to the second part of the first channel, and then flows from the second part of the first channel 151 relatively close to the third plate to the second part of the second channel 103, so the above-mentioned embodiment only describes the outflow from the second channel 152.

[0055] The heat exchange assembly can be used in a thermal management system for a vehicle. The thermal management system includes a compressor, a heat exchange assembly, at least one evaporator and a second heat exchanger, a liquid storage tank or a gas-liquid separator, and at least one throttling element. The thermal management system includes a refrigerant system and a coolant system. The medium flowing in the refrigerant system is the refrigerant, and the medium flowing in the coolant system is the coolant. The first coolant interface 51 and the second coolant interface 52 are connected through the coolant flow channel of the first heat exchange zone. The first coolant interface part 101 and the second coolant interface part 102 can be part of the side plate of the first heat exchange zone, or can be separately processed and fixed to the side plate and / or heat exchange core of the first heat exchange zone by welding. The first coolant interface part and the second coolant interface part can also be fixed to the first heat exchange zone in the form of a pipe connector. The coolant flow channel of the first heat exchange zone includes a first channel and a second channel, and the coolant flow channel is not connected to the coolant flow channel. The heat exchange assembly can facilitate the installation and connection of the thermal management system, reduce the connected pipelines, and reduce the volume of the system. The heat exchange component is used in a vehicle thermal management system as an example for explanation. It should be noted that these components are fixed in actual use. For the sake of clarity, the flow of the refrigerant is shown in the exploded diagram of this article. This is only for the purpose of clear marking and explanation.

[0056] The heat exchange assembly can realize heat exchange between high-temperature refrigerant and low-temperature refrigerant, reduce the temperature of high-temperature refrigerant, thereby improving efficiency. The two parts of low-temperature refrigerant return to the compressor together through the second interface of the heat exchange assembly, which can reduce the setting of pipelines and make the system connection simple and convenient. Another way of the heat exchange assembly can realize heat exchange between high-temperature refrigerant and part of low-temperature refrigerant, reduce the temperature of high-temperature refrigerant, and will not make the temperature of the refrigerant returning to the compressor too high, thereby improving efficiency and making the system connection simple and convenient.

[0057] The flow direction in this article is for illustration only and is not a limitation or a requirement for closure. Other components may be added therein, such as other control valves in front of the compressor. For example, the flow direction to the evaporator may include a throttling element in front of the evaporator, or even a control valve. These technical solutions can be modified according to the actual system, and the connectivity shall be subject to the specific technical solutions.

[0058] In this article, the connection between the two or other parts is not a closed description in this article, which means that the two are connected, and there are also other parts between the two, such as throttling elements, separators, control valves, one-way valves, heat exchangers, etc. There are many possibilities. The connection method in this article is not closed. For example, the second channel of the first heat exchange zone is connected with the first channel of the second heat exchange zone through the matching hole of a certain plate. Here, it means that the flow channel between the second channel of the first heat exchange zone and the first channel of the second heat exchange zone passes through the matching hole. The connection can be achieved by the matching hole alone, and it also includes multiple ways such as through the matching hole of another plate or even including the space between the two plates. The others are similar. In this article, for the sake of clarity, the serial numbers used, such as the first, second, third, and fourth, are only for the convenience of description and distinction. It does not mean that the part must have 4 such structures. It can have only one or two such structures. For example, the third plate includes the second matching part and the fourth matching part, which means that the third plate includes these two matching parts, not that the third plate has four matching parts. When the second heat exchange zone is used as an intermediate heat exchanger and the first heat exchange zone is used as a cooler, the heat exchange assembly also needs to have a throttling element, so that the high-temperature refrigerant from the intermediate heat exchanger can be throttled by the throttling element. When the throttling element is an electronic expansion valve, the high-temperature refrigerant can be connected by extending the connecting pipe. If a throttling tube is used, the throttling tube can be arranged in the first channel. These structures can be changed accordingly depending on the application method of the system. The thickness of the four plates in the above embodiment can be the same as the plate of the first heat exchange zone, and the outer size of the four plates is similar, except that the position of the matching part and the hole is different. In addition, the outer size can also be different, such as extending the third plate outward, which is conducive to distinguishing and identifying.

[0059] In addition, the mating parts that are arranged and matched between the two plates can be convex structures as in the embodiment, or accessories such as gaskets with holes can be added between the mating parts. For example, the second mating part of the third plate and the second mating part of the fourth plate are flush with their main body parts, that is, they are not convex. In order to make the two fit and weld, a gasket of suitable material is arranged between the two, so that the two are welded to the gasket respectively and the two are welded and fixed. The heat exchanger is provided with four plates, and the flow channels between the two adjacent plates are connected through a matching hole and the other is connected through the space between the two plates, so that the two heat exchange zones with different functions can be relatively conveniently formed into an integrated structure by welding. The two heat exchange zones are provided with a mating part and a matching hole of the plate to realize an integrated heat exchanger with two heat exchange zones, so that the second channel of the first heat exchange zone is connected to a channel of the second heat exchange zone. When the refrigerant flows in different directions, only the local structure of the plate needs to be changed, such as changing the mating part of the plate and the matching hole used for conduction, to achieve the needs of different system connections, and the structure of the heat exchanger can be relatively small.

[0060] It should be noted that the above embodiments are only used to illustrate the present invention and are not intended to limit the technical solutions described in the present invention, such as the directional definitions of "front", "back", "left", "right", "up" and "down". Although this specification has described the present invention in detail with reference to the above embodiments, it should be understood by those skilled in the art that the present invention can still be modified, combined or replaced by equivalents, and all technical solutions and improvements thereof that do not depart from the spirit and scope of the present invention should be included in the scope of the claims of this solution.

Claims

1. A heat exchanger, comprising a first heat exchange zone (15) and a second heat exchange zone (16), wherein the first heat exchange zone (15) comprises a first plate (11), and the second heat exchange zone (16) comprises a second plate (14), the heat exchanger further comprising a third plate (12) and a fourth plate (13), wherein a main body of the third plate (12) is located between the first plate and the fourth plate, and a main body of the fourth plate (13) is located between the third plate and the second plate, and the second heat exchange zone (16) comprises two fluid flow channels, and the two fluid flow channels can be The first heat exchange zone (15) comprises a first hole (151) and a second hole (152); the second heat exchange zone (16) comprises four holes: a first hole (161), a second hole (162), a third hole (163), and a fourth hole (164); the second heat exchange zone (16) has two holes for communication on a side close to the first heat exchange zone: a first hole (147) and a second hole (148); the second plate (14) comprises the first hole (147) and the second hole (148); The fourth plate includes at least two matching holes, the third plate includes a matching hole arranged opposite to a matching hole of the fourth plate, the matching hole of the fourth plate corresponds to and communicates with the matching hole of the third plate; another matching hole of the fourth plate corresponds to and communicates with a hole of the second plate; The second channel of the first heat exchange zone is connected with a channel of the second heat exchange zone through the third plate and the fourth plate.

2. A heat exchanger, comprising a first heat exchange zone (15) and a second heat exchange zone (16), wherein the first heat exchange zone (15) comprises a first plate (11), and the second heat exchange zone (16) comprises a second plate (14), the heat exchanger further comprising a third plate (12) and a fourth plate (13), wherein a main body of the third plate (12) is located between the first plate and the fourth plate, and a main body of the fourth plate (13) is located between the third plate and the second plate, and the second heat exchange zone (16) comprises two fluid flow channels, and the two fluid flow channels can be The first heat exchange zone (15) comprises a first hole (151) and a second hole (152); the second heat exchange zone (16) comprises four holes: a first hole (161), a second hole (162), a third hole (163), and a fourth hole (164); the second heat exchange zone (16) has two holes for communication on a side close to the first heat exchange zone: a first hole (147) and a second hole (148); the second plate (14) comprises the first hole (147) and the second hole (148); The third plate includes at least one matching portion, and a matching hole is provided on the matching portion; the fourth plate includes at least two matching portions, and a matching hole is provided on each matching portion; the matching portion of the third plate is arranged opposite to one of the matching portions of the fourth plate and fixed by welding, and the matching hole on the matching portion of the third plate is relatively connected to one of the matching holes of the fourth plate; The second plate includes at least one matching portion, and one of the holes is provided on the matching portion; another matching portion of the fourth plate is arranged opposite to the matching portion of the second plate and is fixed by welding, and another matching hole of the fourth plate is connected to the hole of the matching portion of the second plate; The second channel of the first heat exchange zone is connected with a channel of the second heat exchange zone through the third plate and the fourth plate.

3. The heat exchanger according to claim 2, It is characterized in that The matching portion of the third plate is protruding toward the fourth plate; one of the two matching portions of the fourth plate is protruding toward the third plate, and the other matching portion is protruding toward the second plate; the third plate (12) has two matching holes: a first matching hole (127) and a second matching hole (128), one of which is provided at the matching portion of the third plate protruding toward the fourth plate, and the other matching hole is connected to the space between the third plate and the fourth plate; the fourth plate (13) has two matching holes for fluid circulation: a third matching hole (137) and a fourth matching hole (138), one of which is provided at the matching portion of the fourth plate protruding toward the third plate and is connected to the space between the fourth plate and the second plate, and the other matching hole is connected to the space between the third plate and the fourth plate.

4. The heat exchanger according to claim 3, It is characterized in that The heat exchanger further comprises a connecting pipe (105), wherein the connecting pipe is at least partially located in the first channel of the first heat exchange zone, the first plate comprises a matching portion (111) protruding in the direction of the second plate, the third plate further comprises a matching portion protruding in the direction of the first plate, the matching portion of the third plate protruding in the direction of the first plate is welded to the matching portion of the first plate protruding in the direction of the third plate or is welded to the connecting pipe; the first heat exchange zone comprises two fluid flow channels, one of which comprises the first channel and the second channel; the other fluid flow channel of the first heat exchange zone comprises a third channel and a fourth channel; the second channel of the first heat exchange zone is connected to a fluid flow channel of the second heat exchange zone through the third plate and the fourth plate, and the connecting port (102) of the connecting pipe is connected to another fluid flow channel of the second heat exchange zone.

5. The heat exchanger according to any one of claims 1 to 4, It is characterized in that The circumferential sides of the first plate, the third plate, the fourth plate and the second plate all have flanged portions, the flanged portions of the first plate, the third plate, the fourth plate and the second plate face the same side and the flanged portion of the first plate is welded and fixed to the flanged portion of the third plate, the flanged portion of the third plate is welded and fixed to the flanged portion of the fourth plate, and the flanged portion of the fourth plate is welded and fixed to the flanged portion of the second plate.

6. The heat exchanger according to claim 5, It is characterized in that The first heat exchange zone (15) has a heat exchange core, the first heat exchange zone includes a plurality of plates, and the heat exchange core also includes fins; the first plate, the third plate, the fourth plate, and the second plate are arranged in sequence, and at least one of them is provided with a concave-convex structure on its main body.

7. A heat exchange component, comprising a throttling element, a connecting piece, and a heat exchanger as claimed in any one of the above claims, wherein the throttling element is relatively close to the first heat exchange zone and is fixed or limitedly arranged with the heat exchanger, and the heat exchange component comprises a first interface (53), a second interface (54), a third interface (55), and a fourth interface (56); the connecting piece is fixedly arranged with the heat exchanger; the second channel of the first heat exchange zone is connected to a fluid flow channel of the second heat exchange zone, the inlet of the throttling element is connected to another fluid flow channel of the second heat exchange zone, and the outlet of the throttling element is connected to the first channel of the first heat exchange zone.

8. The heat exchange assembly according to claim 7, It is characterized in that The heat exchange component includes a connecting pipe, which is connected to the inlet of the throttling element, and the connecting pipe is welded and fixed to the first plate and / or the second plate; the connecting piece is provided with the first interface (53), the second interface (54), the third interface (55), and the fourth interface (56); the first interface, the second interface, the third interface, and the fourth interface are respectively connected to a channel of the second heat exchange zone; the heat exchange component also includes a first coolant interface part (41) and a second coolant interface part (42), the first heat exchange zone includes two fluid flow channels: a refrigerant flow channel and a coolant flow channel, the refrigerant flow channel includes the first channel and the second channel, and the coolant flow channel of the first heat exchange zone includes the third channel and the fourth channel.

9. A thermal management system, comprising a refrigerant flow channel, the thermal management system comprising a heat exchange component as described in claim 7 or 8 above; the thermal management system comprises a compressor, a condenser, and at least one evaporator, the outlet of the condenser is connected to the first interface through a pipeline, or a liquid reservoir is included between the outlet of the condenser and the first interface, the inlet of the compressor is connected to the second interface, and the inlet of the evaporator is connected to the third interface, or the thermal management system further comprises a throttling element between the inlet of the evaporator and the third interface, and the outlet of the evaporator is connected to the fourth interface.

10. The thermal management system according to claim 9, wherein the thermal management system includes a coolant flow channel, the first heat exchange zone includes a first coolant interface portion (41) and a second coolant interface portion (42), the first coolant interface portion has a first coolant interface (51), and the second coolant interface portion has a second coolant interface (52); the coolant flow channel flows through the first coolant interface portion, the second coolant interface portion and the coolant flow channel in the first heat exchange zone that is connected to the first coolant interface and the second coolant interface.

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