A heat exchange component and a thermal management system

Abstract

The present invention discloses a heat exchange component, which includes a first heat exchange part, a bridge, and a second heat exchange part. The bridge is at least partially located between the first heat exchange part and the second heat exchange part, and the bridge includes a first interface part with a first interface; the first heat exchange part includes a first channel and a second channel, and the second heat exchange part includes a first channel and a second channel; the bridge includes a hole or groove connected to the first channel of the first heat exchange part and a hole or groove connected to the first channel of the second heat exchange part; the first interface is connected to the first channel of the first heat exchange part through the hole and / or groove for communication of the bridge, and the first interface is connected to the first channel of the second heat exchange part through the hole and / or groove for communication of the bridge; the fluid communication between the two heat exchange parts can be relatively conveniently achieved through the bridge, and changes in system requirements can be achieved by changing the structure of the bridge, so that the system pipelines are simple, the setting of pipelines between the interfaces 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 exchange component and a thermal management system. Background Art

[0002] Some thermal management systems include no less than two heat exchangers, such as plate evaporators. These heat exchangers and components are generally connected by pipes and fixed in the system application. Due to the large number of components in the system, the pipe connections of the system are also relatively complicated. Summary of the Invention

[0003] In order to provide a heat exchange component that is relatively simple to connect when connecting a system, the present invention provides the following technical solutions:

[0004] A heat exchange assembly, comprising a first heat exchange portion, a bridge, and a second heat exchange portion, wherein the bridge is at least partially located between the first heat exchange portion and the second heat exchange portion, and the first heat exchange portion, the bridge, and the second heat exchange portion are fixed by welding; the heat exchange assembly comprises a first interface and a second interface; the bridge comprises a first interface portion, and the first interface is located at the first interface portion; the first heat exchange portion comprises a first channel and a second channel, and the second heat exchange portion comprises a first channel and a second channel; the bridge comprises a hole or slot communicating with the first channel of the first heat exchange portion, and the bridge comprises a hole or slot communicating with the first channel of the second heat exchange portion; the first interface communicates with the first channel of the first heat exchange portion via the holes and / or slots of the bridge for communication, and the first interface communicates with the first channel of the second heat exchange portion via the holes and / or slots of the bridge for communication. Here, the holes and / or slots of the bridge communicating with the first channel of the first heat exchange portion may partially overlap with the holes and / or slots communicating with the first channel of the second heat exchange portion, or the same holes and / or slots may simultaneously communicate with both.

[0005] At the same time, a vehicle thermal management system is also provided, which includes a refrigerant flow channel, and the vehicle thermal management system includes the heat exchange component as described above; the heat exchange component includes a first interface part, the first interface part has a first interface, and the heat exchange component includes a second interface, a third interface, and a fourth interface; the vehicle thermal management system includes a compressor, a condenser, and at least one evaporator, the outlet of the condenser is connected to the second interface through a pipeline, or a liquid reservoir is included between the outlet of the condenser and the second interface, the inlet of the compressor is connected to the first 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.

[0006] The bridge can relatively easily realize the connection between the two heat exchange parts and the system fluid, which can reduce the pipeline interfaces connected to the system. The change of system requirements can be achieved by changing the structure of the bridge, which makes the system pipeline simple and can reduce the setting of pipelines, making the connection simple and convenient when the system is used; in addition, the first interface part is set on the bridge, and the first interface is connected to one channel of each of the two heat exchange parts at the same time, which can reduce the number of interfaces. BRIEF DESCRIPTION OF THE DRAWINGS

[0007] Figure 1 A three-dimensional schematic diagram of a first embodiment of a heat exchange assembly provided by the present invention;

[0008] Figure 2 for Figure 1 A schematic diagram of the heat exchange assembly shown in the main viewing direction;

[0009] Figure 3 for Figure 2 A schematic diagram of a cross-section of the heat exchange component shown in the AA direction;

[0010] Figure 4 is a partial schematic diagram of the first heat exchange portion of the heat exchange assembly;

[0011] Figure 5 is an exploded schematic diagram of the heat exchange component;

[0012] Figure 6 is a three-dimensional schematic diagram of the bridge of the heat exchange component;

[0013] Figure 7 for Figure 6 The bridge is shown in its main view and in cross-section along the BB and CC directions;

[0014] Figure 8 、 Figure 9 It is a three-dimensional schematic diagram of the connecting parts of the component in two directions;

[0015] Figure 10 This is an exploded diagram of the second embodiment of the heat exchange assembly. Figure 11 is a three-dimensional schematic diagram of the bridge of the heat exchange component;

[0016] Figure 12 for Figure 11 A schematic diagram of another embodiment of the bridge is shown;

[0017] Figure 13 is an exploded schematic diagram of a third embodiment of a heat exchange assembly;

[0018] Figure 14 for Figure 13 An exploded schematic diagram of the connector of the heat exchange assembly shown;

[0019] Figure 15is a perspective schematic diagram of a fourth embodiment of a heat exchange assembly;

[0020] Figure 16 for Figure 15 An exploded schematic diagram of the heat exchange component shown;

[0021] Figure 17 for Figure 16 A schematic diagram of the bridge of the heat exchange assembly shown;

[0022] Figure 18 、 Figure 19 for Figure 16 A schematic diagram of the three-dimensional view and the front view of the connector of the heat exchange assembly;

[0023] Figure 20 An exploded schematic diagram of a fifth embodiment of a heat exchange assembly;

[0024] Figure 21 for Figure 20 The main view of the bridge of the heat exchange assembly shown and the schematic diagram of the cross-section in the GG direction and the FF direction;

[0025] In the figure: 10 first heat exchange part, 100 matching part, 101 first coolant interface part, 102 second coolant interface part, 103 first channel, 104 second channel, 105 communication port, 110 throttling element,

[0026] 20 bridge, 200 first matching portion, 200' second matching portion, 202 guide hole, 203 first groove, 2032 weight reduction hole, 204, 204' conducting portion, 2041 hole, 2042 groove, 205 second groove, 206 through hole, 207 second mounting portion, 2080 groove, 2081 hole, 2082 oblique hole, 2084 hole, 209 mounting portion, 210 first interface portion, 211 second interface portion, 212, 213 shoulders, 217 protrusion, 218 second protrusion, 221 fixing hole, 222 through hole, 223, 224 holes, 250 sensor element, 2501 sensor head,

[0027] 30 second heat exchange part, 300, 300' matching part, 301 third channel, 302 fourth channel, 303 first channel, 304 second channel,

[0028] 40 Connecting member, 4010 Main body, 4011 Extension, 405 Groove, 409 Fixing hole, 411 Connecting block, 4111, 4112, 4113 Through holes, 412 Connecting plate, 4122, 4123, 4124, 4125 Through holes, 4132 Second interface mating portion, 4133 First interface mating portion, 421 Connecting block, 4211, 4212 Grooves, 4213, 4215, 4216 Interface portions, 4217, 4218 Through holes, 423 Interface mating member, 442 Connecting portion, 450 Fixing member;

[0029] 51 first coolant interface, 52 second coolant interface, 53 second interface, 54 first interface, 55 third interface, 56 fourth interface, 57 fifth interface, 58 sixth interface. DETAILED DESCRIPTION

[0030] The technical solution is described below in conjunction with specific implementation methods. Figures 1-9 As shown, Figure 1 This is a three-dimensional schematic diagram of the first embodiment of the heat exchange assembly provided by the present invention. Figure 2 is a schematic diagram of the main viewing direction of the heat exchange component, Figure 3 This is a schematic diagram of the AA direction section of the heat exchange component. Figure 4 is a partial schematic diagram of the first heat exchange part of the heat exchange assembly, Figure 5 This is an exploded diagram of the heat exchange component. Figure 6 is a three-dimensional schematic diagram of the bridge of the heat exchange component, Figure 7 This is the main view of the bridge and the schematic diagram of the cross-section in the BB and CC directions. Figure 8 、 Figure 9 The figure shows a three-dimensional schematic diagram of the connector of the assembly from two directions. As shown in the figure, the heat exchange assembly includes a first heat exchange section 10, a throttling element 110, a bridge 20, a second heat exchange section 30, and a connector 40. The bridge 20 is mostly located between the first heat exchange section 10 and the second heat exchange section 30, and the connector 40 is located on the other side of the second heat exchange section 30. That is, the bridge 20 and the connector 40 are respectively arranged on either side of the second heat exchange section. The first heat exchange section 10, the bridge 20, and the second heat exchange section 30 are fixed together by welding, or the first heat exchange section 10, the bridge 20, the second heat exchange section 30, and the connector are fixed together by welding.

[0031] The first heat exchange part 10 has a heat exchange core. The first heat exchange part 10 has two flow channels for fluid to flow through for heat exchange. The two fluid flow channels are separated. The first heat exchange part 10 includes interlayer flow channels separated by stacked plates. The first heat exchange part 10 can flow through at least two fluids. These two fluids can exchange heat in the first heat exchange part. For example, one fluid is a refrigerant and the other can be a coolant, such as 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 part 10 can also have only two channels, which are only connected to the refrigerant channel and are in contact with other components or media that need heat exchange for heat exchange. The following is an example of two fluids.

[0032] The heat exchange assembly has a first coolant port 51, a second coolant port 52, a first port 54, a second port 53, a third port 55, a fourth port 56, a fifth port 57, and a sixth port 58. In this embodiment, the first heat exchange unit is provided with the first coolant port 51 and the second coolant port 52, the bridge 20 is provided with the first port 54 and the second port 53, and the connector 40 is provided with the third port 55, the fourth port 56, the fifth port 57, and the sixth port 58. The throttling element 110 is fixed or positionally fixed to the first heat exchange unit 10. The first heat exchange unit 10 has four channels (not all of which are shown in the figure), including a first channel 103 and a second channel 104. The first heat exchange unit is also provided with a tube having a connecting port 105 in the second channel 104. The connecting port 105 is connected to the throttling element 110. The first heat exchange unit 10 includes a first coolant interface 101 and a second coolant interface 102. The first coolant interface 101 has a first coolant interface 51, and the second coolant interface 102 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 heat exchange core. The first coolant interface 101 and the second coolant interface 102 can be part of the side plate of the first heat exchange unit, or can be separately processed and fixed to the side plate and / or heat exchange core of the first heat exchange unit by welding. The first coolant interface and the second coolant interface can also be fixed to the first heat exchange unit by pipe fittings. The first channel of the first heat exchange unit is connected to the second channel through the refrigerant flow channel, and the coolant flow channel is not connected to the refrigerant flow channel.

[0033] The bridge 20 has a first matching portion 200 and a second matching portion 200'. Correspondingly, the first heat exchange portion 10 has a matching portion 100, which matches the first matching portion 200 of the bridge. The second heat exchange portion 30 has a matching portion 300, which matches the second matching portion 200' of the bridge. The matching portion 100 of the first heat exchange portion 10, the matching portion 300 of the second heat exchange portion 30 and the two matching portions of the bridge all include a flat portion. The holes, grooves or openings of the conducting portion provided on the side of the first matching portion 200 for communication are all located at the first The interior of the matching part and each of the ports for communication are surrounded by the first matching part, and the first heat exchange part has a corresponding communication port at a position corresponding to the position of each port for communication of the bridge, and each communication port of the first heat exchange part is located inside its matching part and each communication port is surrounded by the matching part; in this way, after the matching part 100 of the first heat exchange part 10 and the first matching part 200 of the bridge are welded and sealed, the port for communication of the bridge can be communicated with the corresponding port for communication of the first heat exchange part, and the matching part is relatively tight. Sealed; or in other words, each of the ports for communication includes a portion of the matching portion around it, and both form a substantially closed structure at the matching portions arranged opposite to each other; the matching portion 300 of the second heat exchange portion 30 corresponds to the second matching portion 200' of the bridge, and after the two are welded and sealed, the ports for communication on this side of the bridge are all connected to the ports of a channel for communication of the second heat exchange portion, specifically, the second heat exchange portion 30 has three channel ports on the side opposite to the bridge 20: the third channel 301, the fourth channel 302, and the first channel 303, and the bridge 20 On the side opposite to the second heat exchange part 30, that is, the second matching part, there are the mouth of the guide hole 202, the mouth of the first groove 203 and the mouth of the hole 2041 of the conductive part 204. The mouth of the third channel 301 of the second heat exchange part corresponds to the position of the mouth of the guide hole 202, the mouth of the fourth channel 302 corresponds to the position of the mouth of the first groove 203, the mouth of the first channel 303 corresponds to a part of the mouth of the hole 2041 of the conductive part 204, the mouth of the hole 2041 is roughly extended up and down, and the mouth of the first groove 203 is roughly extended up and down.

[0034] The terms "up" and "down" in this document are for clarity and should not be construed as limiting. They correspond to the height direction. Holes herein include, but are not limited to, through holes and blind holes. Holes can be circular or non-circular. Slots generally refer to non-through holes, but also include most non-through holes that partially penetrate.

[0035] The bridge 20 includes a first interface portion 210 and a second interface portion 211. The first interface portion 210 includes a first interface 54, which communicates with the conductive portion 204, with one end of the conductive portion 204 relatively close to the first interface portion. The second interface portion 211 includes a second interface 53. Both interface portions include outwardly protruding structures and are located on the same side, which facilitates connection during system operation. The two interface portions can be integral to the bridge body, or they can be separately machined and secured to the bridge body via welding. In addition, the bridge 20 is provided with a through hole 206, the first groove 203 is a structure similar to a blind hole and extends up and down, and the through hole 206 is provided on the side of the first groove 203 relatively close to the second interface portion; the bridge is provided with a second groove 205 on the side where the first matching portion is located, the second groove 205 is a structure similar to a blind hole and extends up and down, and the through hole 206 is located on the side of the second groove 205 relatively far away from the second interface portion; the first groove 203 and the second groove 205 are connected through the through hole 206, or in other words, one end of the first groove 203 extending is the through hole 206 or a part of the through hole 206, and one end of the second groove 205 extending is the through hole 206 or a part of the through hole 206, as shown in FIG. Figure 7 The guide hole 202 is similar to a blind hole, and the mouth of the guide hole 202 is on the side of the second matching portion. The guide hole 202 is connected to the second interface 53. The depth of the guide hole is greater than or equal to half of the thickness of the bridge, or the depth of the guide hole is close to half of the thickness of the bridge, such as greater than or equal to one-third of the thickness of the bridge and less than two-thirds of the thickness of the bridge; the conductive portion 204 includes a hole 2041 and a groove 2042. The hole 2041 is similar to a through hole, and the groove 2042 is similar to a blind hole. The mouth of the groove 2042 is set on the side where the first matching portion is located. The side of the bridge facing the first heat exchange part is defined as the front side, and the side of the bridge facing the second heat exchange part is defined as the back side. In this example, the side of the bridge where the first groove 203 is set is the back side, and the side where the second groove 205 is set is the front side. The projection of the first groove 203 to the front side is at least partially located in the groove 2042 of the conductive part, and the projection of the guide hole 202 to the front side is at least partially located in the second groove 205, that is, the guide hole 202 and the second groove 205 are at least partially opposite to each other and not directly connected, and the first groove 203 and the groove 2042 are at least partially opposite to each other and not directly connected.

[0036] The connector 40 includes a main body 4010 and an extension 4011. The connector 40 is provided with a third interface 55, a fourth interface 56, a fifth interface 57, and a sixth interface 58. Furthermore, a fixing hole 409 is provided for cooperating with fixation or limiting. The connector 40 has a groove 405 on the side facing the second heat exchange portion 30. The groove 405 is similar to a blind hole structure. The fifth interface 57 is provided in the groove 405 relatively close to the sixth interface 58. The third interface 55 is provided approximately in the middle of the groove 405. The third interface 55 is connected to the groove 405, and the fifth interface 57 is connected to the groove 405. The connector may also include a fixing member 450 for fixing or limiting. The fixing member 450 can be fixed or limited in position in the fixing hole 409. In this embodiment, an extension portion 4011 is provided, and the main body 4010 and the extension portion 4011 have a groove 405, and the groove 405 is connected to the third interface 55 and the fifth interface 57. In this way, the sixth interface 58, the third interface 55, the fourth interface 56, and the fifth interface 57 can be provided on the main body 4010, so that the connection of each interface is relatively convenient and compact.

[0037] The heat exchange assembly can facilitate the installation and connection of the thermal management system, reduce the number of connected pipes, and reduce the volume of the system. Taking the heat exchange assembly used in a vehicle thermal management system as an example, 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 view. This is only for the purpose of clarity. In a specific vehicle thermal management system, the vehicle thermal management system includes a refrigerant system and a coolant system. Figure 5As shown in other figures, the coolant system includes a first coolant interface portion 101 and a second coolant interface portion 102 of the heat exchange component, and a coolant flow channel in the first heat exchange portion that is connected to the first coolant interface and the second coolant interface. The heat of the battery is transferred to the coolant, which flows through the first coolant interface 51 or the second coolant interface 52 through the first heat exchange portion, and exchanges heat with the refrigerant in the refrigerant flow channel in the first heat exchange portion. After cooling, the coolant returns to cool the battery. The second interface 53, the first interface 54, the third interface 55, the fourth interface 56, the fifth interface 57, and the sixth interface 58 are connected to the refrigerant system respectively. For example, the refrigerant cooled by the condenser enters the heat exchange component through the second interface 53, or the refrigerant through the liquid reservoir enters the heat exchange component through the second interface 53. In this way, the high-temperature and high-pressure refrigerant passes through the guide hole 202 to the third channel 301 of the second heat exchange part, and exchanges heat with the refrigerant of another flow channel in the second heat exchange part 30 to the fourth channel 302. The refrigerant to the fourth channel 302 is divided into two parts: one part is formed by the groove 405 located at the second heat exchange part through the connector 40 and the second heat exchange part. The flow channel formed by the space flows out through the third interface 55 and the fifth interface 57, such as the third interface 55 leads to the front evaporator and the fifth interface 57 leads to the rear evaporator, or the third interface 55 leads to the rear evaporator and the fifth interface 57 leads to the front evaporator. A throttling element can also be set in front of the front evaporator or the rear evaporator; another part of the refrigerant passes through the flow channel formed by the space where the first groove 203 is located in cooperation with the second heat exchange part, through the through hole 206, through the flow channel formed by the space where the second groove 205 is located in cooperation with the bridge and the first heat exchange part, and enters the throttling element 110 through the connecting port 105 connected to the throttling element 1 After throttling, the refrigerant enters the second channel 104 of the first heat exchange part 10, and exchanges heat with the coolant in the coolant channel of the first heat exchange part and reaches the first channel 103. It passes through the flow channel formed by the conducting part 204 coordinated by the bridge, the first heat exchange part and the second heat exchange part, and merges with the refrigerant coming from the first channel 303 of the second heat exchange part, and flows out from the first interface 54 through the conducting part 204, such as returning to the compressor; in addition, the fourth interface 56 and the sixth interface 58 can be used to connect the refrigerant flowing back from the front evaporator and the rear evaporator, such as a part of the low-temperature refrigerant in this embodiment passes through the sixth interface 58 and the first interface 58 of the second heat exchange part. A channel 303 to the conducting part 204; then the refrigerant flows out through the first interface 54, such as returning to the compressor; another part of the low-temperature refrigerant flows from the evaporator through the fourth interface 56, and flows through the second channel 304 of the second heat exchange part to the first channel 303, and exchanges heat with the high-temperature refrigerant flowing from the third channel 301 to the fourth channel 302. In the first channel 303, the two parts of the refrigerant converge and then flow to the conducting part 204. After the refrigerants converge in the conducting part 204, they can flow back to the compressor through the first interface. In this way, part of the low-temperature refrigerant is used to cool the high-temperature refrigerant, which can reduce the condensation temperature of the refrigerant without making the temperature of the refrigerant returning to the compressor higher.Only one of the fourth and sixth interfaces can be provided as needed, and the fourth or sixth interface is connected to the first interface via the second heat exchange section. The flow directions described herein are for illustrative purposes only and are not intended to be limiting or a requirement for closure. Other components, such as control valves before the compressor, may be added. The bridge 20 also includes a second mounting portion 207 for mounting a sensor element 250, such as a temperature sensor. The temperature sensing head 2501 passes through the mounting portion and is positioned within the flow path of the conductive portion 204. The second mounting portion 207 is positioned relatively away from the first interface, or relatively close to the second channel of the first heat exchange section relative to the first interface, or relatively close to the first channel. This allows the refrigerant temperature after passing through the first heat exchange section, or the evaporator outlet temperature, to be determined. This solution is applicable to two evaporators. If more evaporators are added, the number of interfaces can be increased accordingly. If fewer evaporators are added, the number of interfaces can be reduced accordingly, such as by eliminating the fifth and sixth interfaces. The bridge can also be provided with weight-reducing holes to reduce weight and make it more suitable for welding to the two heat exchange sections.

[0038] The heat exchange component can realize the 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 refrigerant returning to the compressor too high, thereby improving efficiency. In addition, the refrigerant of the two heat exchange parts returns to the compressor through the first interface, which can reduce the setting of pipelines and make the system connection simple and convenient. In addition, the high temperature refrigerant flowing to the first heat exchange part can be cooled without passing through the second heat exchange part. Figure 10 、 Figure 11As shown, the second embodiment is an improvement on the above embodiment, the difference lies in the structure of the bridge and the second heat exchange part. The guide hole 202 of the bridge is a through hole. The inlet of the compressor can be connected to the first interface 54, and the second interface 53 can be connected to the high-temperature refrigerant, such as the refrigerant cooled by the condenser enters the heat exchange component through the second interface 53, or the refrigerant through the liquid storage enters the heat exchange component through the second interface 53. In this way, the high-temperature and high-pressure refrigerant can be divided into two parts through the guide hole 202, one part goes to the third channel 301 of the second heat exchange part, and after heat exchange with the refrigerant in another channel in the second heat exchange part 30, it goes to the fourth channel 302. The refrigerant in the fourth channel 302 flows through the flow channel formed by the space where the groove 405 is located, formed by the cooperation of the connector 40 and the second heat exchange part, and flows out through the third interface 55 and the fifth interface 57, such as through the third interface 55 to the front evaporator, through the fifth interface 57 to the rear evaporator, or through the third interface 55 leads to the rear evaporator and leads to the front evaporator through the fifth interface 57. A throttling element can also be set in front of the front evaporator or the rear evaporator; another part of the refrigerant enters the throttling element 110 through the connecting port 105 connected to the throttling element, and enters the second channel of the first heat exchange part 10 after throttling by the throttling element 110, and exchanges heat with the coolant in the coolant channel in the refrigerant flow channel of the first heat exchange part, reaches the first channel 103, and passes through the flow channel formed by the conducting part 204 coordinated by the bridge, the first heat exchange part, and the second heat exchange part, and merges with the refrigerant in the first channel 303 of the second heat exchange part, and flows out through the first interface 54, such as returning to the compressor; In addition, the fourth interface 56 and the sixth interface 58 can be used to connect the refrigerant flowing back from the front evaporator and or the rear evaporator, For example, the low-temperature refrigerant returning through the fourth interface flows through the second channel 304 of the second heat exchange unit to the first channel 303, exchanging heat with the high-temperature refrigerant flowing from the third channel 301 to the fourth channel 302. Meanwhile, the low-temperature refrigerant returning through the sixth interface flows to the first channel 303, and the two refrigerants converge at the conducting portion 204. After converging, the refrigerants can flow back to the compressor through the first interface. In this way, part of the low-temperature refrigerant is used to cool the high-temperature refrigerant, which can lower the condensation temperature of the refrigerant without increasing the temperature of the refrigerant returning to the compressor.

[0039] In this way, the refrigerant to the first heat exchange part can be supercooled or not, which can be achieved only by changing the structure of the bridge. Figure 12 As shown, the structure of the conductive portion 204' is changed to a tilted through-hole structure, one end 204b of the conductive portion 204' is relatively close to the first interface 54 and communicates with the first interface 54, and the other end 204a of the conductive portion 204' is relatively close to the first channel 303 of the first heat exchange part.

[0040] In addition, the bridge can also be provided with weight-reducing holes to reduce weight and make the bridge more suitable for welding with the two heat exchange parts, refer to the following embodiment. Figure 13 、 Figure 14 , Figure 13 This is an exploded schematic diagram of the third embodiment of the heat exchange assembly. Figure 14 An exploded view of the heat exchange assembly's connector. The heat exchange assembly includes a first heat exchange portion 10, a bridge 20, a second heat exchange portion 30, and connectors. The heat exchange assembly includes a first interface 54, a second interface 53, a third interface 55, a fourth interface 56, a fifth interface 57, and a sixth interface 58. The bridge 20 is provided with a first interface portion 210 and a second interface portion 211. The throttling element 110 is fixed or limitedly arranged with the first heat exchange part 10, wherein the first heat exchange part 10 has four channels (not all of which are shown in the figure), including a first channel 103 and a second channel 104. The first heat exchange part 10 includes a first coolant interface part 101 and a second coolant interface part 102. The first coolant interface part 101 has a first coolant interface 51, and the second coolant interface part 102 has a second coolant interface 52. The first coolant interface 51 and the second coolant interface 52 are connected through the flow channel of the heat exchange core. 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 part, or can be separately processed and fixed to the side plate and / or heat exchange core of the first heat exchange part by welding.

[0041] The bridge 20 has a first matching portion 200 and a second matching portion 200'. The first heat exchange portion 10 has a matching portion 100 that matches the first matching portion 200 of the bridge. The first matching portion 200 is opposite to and matches the matching portion of the first heat exchange portion. The matching portion 100 of the first heat exchange portion 10 and the first matching portion 200 of the bridge both include a planar portion. The hole, groove, or opening of the conducting portion for communication provided on the side of the first matching portion 200 of the bridge is located inside the first matching portion, and each opening for communication is surrounded by the first matching portion. The first heat exchange portion has a corresponding communicating opening at a position corresponding to the position of each communicating opening of the bridge, and each communicating opening is located inside its matching portion, and each connecting opening is surrounded by the matching portion. ; In other words, both of them include a roughly closed structure in the relatively arranged matching parts; in this way, after the matching part 100 of the first heat exchange part 10 and the first matching part 200 of the bridge are welded and sealed, the mouth of the bridge for communication is connected with the corresponding mouth of the first heat exchange part for communication, specifically, the first heat exchange part 10 has the mouth of the first channel 103 and the connecting port 105 connected to the throttling element on the side opposite to the bridge 20, and the bridge 20 has corresponding holes 223 and holes 224 on the side opposite to the first heat exchange part 10, the mouth of the hole 223 is connected to the corresponding position of the mouth of the first channel 103 of the first heat exchange part, and the mouth of the hole 224 is connected to the connecting port 105 connected to the throttling element; the hole 223 and the hole 224 are through holes.

[0042] The bridge 20 has a second matching portion 200', which faces the second heat exchange portion. The second heat exchange portion 30 has a matching portion 300. The matching portion 300 of the second heat exchange portion 30 and the second matching portion 200' of the bridge both include a planar portion. The hole, groove, or opening of the conducting portion for communication provided on the side of the second matching portion of the bridge is located inside the second matching portion, and each opening for communication is surrounded by the second matching portion. The second heat exchange portion has a corresponding communicating opening at a position corresponding to the position of each opening for communication of the bridge, and each communicating opening is located inside its matching portion, and each opening for communication is surrounded by the matching portion; or in other words, each opening for communication is surrounded by a portion of the matching portion, and the two form a substantially closed joint at the matching portions arranged opposite to each other. structure; the matching portion 300 of the second heat exchange part 30 corresponds to the position of the second matching portion 200' of the bridge. After the two are welded and sealed, the mouth of the bridge on this side for communication can be connected with the mouth of the second heat exchange part for communication. Specifically, the second heat exchange part 30 has three channel mouths on the side opposite to the bridge 20: the third channel 301, the fourth channel 302, and the mouth of the first channel 303. The bridge 20 has the mouth of the guide hole 202, the mouth of the hole 223 and the mouth of the hole 224 on the side opposite to the second heat exchange part 30, that is, the second matching portion. The mouth of the third channel 301 of the second heat exchange part is connected to the position corresponding to the mouth of the guide hole 202, the mouth of the fourth channel 302 is connected to the position corresponding to the position of the mouth of the hole 224, and the mouth of the first channel 303 corresponds to the position of the mouth of the hole 223. The bridge 20 includes a first interface portion 210 and a second interface portion 211. The first interface portion 210 has a first interface 54, and the second interface portion 211 has a second interface 53. Both interface portions include outwardly protruding structures. The interface portions can be integral with the bridge body or separately machined and secured to the bridge body via welding. The bridge 20 is provided with four weight-reducing holes 2032. These weight-reducing holes 2032 can be non-circular through holes or circular holes. The diversion holes 202 are similar to blind holes. The mouth of the diversion holes 202 is located on the side where the second mating portion is located. The diversion holes 202 communicate with the second interface 53, and the holes 223 communicate with the first interface 54. The bridge also includes a protrusion 217 and a second protrusion 218. The protrusion 217 is arranged to protrude roughly laterally along the main body, and the second protrusion 218 is arranged to protrude roughly outward from a corner of the main body. The side surfaces on both sides of the protrusion 217 are not higher than the matching parts on both sides of the bridge, and the side surfaces on both sides of the second protrusion 218 are not higher than the matching parts on both sides of the bridge; similarly, the side surfaces of the second protrusion are also correspondingly lower than the matching parts on the corresponding side of the two sides of the bridge; in other words, the thickness of the protrusion 217 is less than the thickness of the main body of the bridge, and the thickness of the second protrusion 218 is less than the thickness of the main body of the bridge.The provision of the convex portion and the second convex portion can reduce the main body of the bridge, so that at least part of the fixing hole 221 can be provided on the convex portion 217 and / or the second convex portion 218, and at least part of the two interface portions can be located on the second convex portion, thereby reducing its main body.

[0043] The connecting member includes a connecting block 411, a connecting plate 412, a first connecting pipe fitting portion 4133, and a second connecting pipe fitting portion 4132. The connecting block 411, the connecting plate 412, the first connecting pipe fitting portion 4133, and the second connecting pipe fitting portion 4132 can be fixed by welding; the thickness of the connecting block 411 is greater than the thickness of the connecting plate 412. The first connecting pipe fitting portion 4133 is provided with a third interface 55 and a fourth interface 56, and the second connecting pipe fitting portion 4132 is provided with a fifth interface 57 and a sixth interface 58. The connecting pipe fitting portion of the connecting member can also be provided with a fixing hole 409 for fixing or limiting with the fixing member 450. The connecting plate 412 is located between the connecting block 411 and the connecting pipe fitting portion. The connecting block is relatively close to the second heat exchange portion, or in other words, the connecting block is close to the second heat exchange portion and fixed by welding. The connecting block 411 has three through holes: through hole 4111, through hole 4112, and through hole 4113. Through hole 4111 and through hole 4112 are non-circular and can be set at an angle or in an arc shape. There is no requirement for the shape, as long as the positions of their two ends can conduct the corresponding flow channels. Through hole 4113 is circular; one side of through hole 4111 is relatively close to one side of through hole 4112, and the other side of through hole 4112 is relatively close to through hole 4113, which facilitates the setting of the pipe fitting part. The connecting plate has four through holes: 4122, 4123, 4124, and 4125. The position of through hole 4125 corresponds to and is connected to through hole 4111; the positions of through holes 4122 and through holes 4124 correspond to through hole 4112 respectively, that is, through holes 4122 and through holes 4124 are connected to through hole 4112, and the position of through hole 4123 corresponds to through hole 4113; the position of the sixth interface 58 corresponds to through hole 4125, and the sixth interface can be connected to through hole 4125, that is, connected to through hole 4111 of the connecting block; the position of the fifth interface 57 corresponds to and is connected to through hole 4124, that is, connected to through hole 4112 of the connecting block; the position of the third interface 55 corresponds to and is connected to through hole 4122, that is, connected to through hole 4112 of the connecting block; the position of the fourth interface 56 corresponds to and is connected to through hole 4123, that is, connected to through hole 4113 of the connecting block. In this embodiment, the connector can be formed by processing profiles or stamping parts and assembling them, which can reduce the number of machining steps.

[0044] The heat exchange assembly can facilitate the installation and connection of the thermal management system, reduce the number of connected pipes and connection interfaces, and reduce the volume of the system. Taking the heat exchange assembly used in a vehicle thermal management system as an example, 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 view. This is only for the purpose of clarity. Figure 14Taking a vehicle thermal management system as an example, the vehicle thermal management system includes a refrigerant system and a coolant system. The coolant system includes a first coolant interface portion 101 and a second coolant interface portion 102 of a heat exchange component, and a coolant flow channel connecting the first heat exchange portion with the first coolant interface and the second coolant interface. Heat energy from the battery is transferred to the coolant, which flows through the first coolant interface 51 or the second coolant interface 52 through the flow channel of the first heat exchange portion, exchanges heat with the refrigerant in the other flow channel in the first heat exchange portion, and then returns to cool the battery after being cooled. The first interface 54, the second interface 53, the third interface 55, the fourth interface 56, the fifth interface 57, and the sixth interface 58 are respectively connected to the refrigerant system. For example, the refrigerant cooled by the condenser enters the heat exchange component through the second interface 53, or the refrigerant through the liquid reservoir enters the heat exchange component through the second interface 53. In this way, the high-temperature and high-pressure refrigerant passes through the guide hole 202 to the third channel 301 of the second heat exchange part, and exchanges heat with the refrigerant of another channel in the second heat exchange part 30 to the fourth channel 302. The refrigerant to the fourth channel 302 is divided into two parts: one part passes through the channel formed by the connector and the second heat exchange part, such as the connector. The through hole 4112 of the connecting block 411 and the through hole 4124 of the connecting plate are connected to the fifth interface 57, and the through hole 4112 of the connecting block 411 of the connecting member and the through hole 4122 of the connecting plate are connected to the third interface 55, and then flow out through the third interface 55 and the fifth interface 57, such as leading to the front evaporator through the third interface 55 and leading to the rear evaporator through the fifth interface 57, or leading to the rear evaporator through the third interface 55 and leading to the front evaporator through the fifth interface 57. A throttling element can also be set in front of the front evaporator or the rear evaporator; another part of the refrigerant passes through the through hole 224 of the bridge and the communication port 10 connected to the throttling element 110. 5 enters the throttling element 110, and there is no communication between the bridge and the second channel 104. After throttling by the throttling element 110, the refrigerant enters the second channel 104 of the first heat exchange part 10, and performs heat exchange between the refrigerant flow channel of the first heat exchange part and the coolant in the coolant flow channel, reaches the first channel 103, and passes through the hole 223 of the bridge, and merges with the refrigerant coming from the first channel 303 of the second heat exchange part, and then flows out through the first interface 54, such as back to the compressor; In addition, the fourth interface 56 can be used to connect the refrigerant flowing back from the front evaporator and / or the rear evaporator. This part of the low-temperature refrigerant passes through the through hole 4123 of the connecting plate and the through hole of the connecting block. 4113 flows to the second channel 304 of the second heat exchange part, and then flows to the first channel 303 to exchange heat with the high-temperature refrigerant flowing from the third channel 301 to the fourth channel 302. In the first channel 303, the two parts of the refrigerant converge and flow to the hole 223, and then flow back to the compressor after merging with the refrigerant coming from the first heat exchange part; the sixth interface 58 can be used to connect the refrigerant flowing back from the rear evaporator and / or the front evaporator. This part of the low-temperature refrigerant passes through the through hole 4125 of the connecting plate and the through hole 4111 of the connecting block, converges to the first channel 303 of the second heat exchange part, and flows to the hole 223, and can return to the compressor through the first interface.The flow directions in this article are for illustration only and are not intended to be limiting or a requirement for closure. Other components may be added, such as other control valves in front of the compressor.

[0045] The second interface of the above embodiment is located at the bridge, and can also be set at the connecting piece, as shown in the fourth embodiment described below. Figures 15-19 , Figure 15 is a three-dimensional schematic diagram of a fourth embodiment of a heat exchange assembly, Figure 16 This is an exploded diagram of the heat exchange component. Figure 17 A schematic diagram of the bridge. Figure 18 、 Figure 19 It is a three-dimensional schematic diagram and a front view schematic diagram of the connecting part.

[0046] The heat exchange assembly includes a first heat exchange part 10, a bridge 20, a second heat exchange part 30, and a connector. The heat exchange assembly has a first coolant interface 51, a second coolant interface 52, a first interface 54, a second interface 53, a third interface 55, a fourth interface 56, a fifth interface 57, and a sixth interface 58. The throttling element 110 is fixed or limitedly arranged with the first heat exchange part 10, wherein the first heat exchange part 10 has four channels including a first channel 103 and a second channel 104 (the other two are not shown in the figure), and the first heat exchange part 10 includes a first coolant interface part 101 and a second coolant interface part 102. The first coolant interface part 101 has a first coolant interface 51, and the second coolant interface part 102 has a second coolant interface 52. The first coolant interface 51 and the second coolant interface 52 are connected through the flow channel of the heat exchange core. 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 part, or can be separately processed and fixed to the side plate and / or heat exchange core of the first heat exchange part by welding.

[0047] The bridge 20 has a first mating portion 200 and a second mating portion 200'. Accordingly, the first mating portion 200 is opposite to and mated with the mating portion 100 of the first heat exchange portion 10, and the second mating portion 200' is opposite to and mated with the mating portion 300 of the second heat exchange portion 30. The mating portion 100 of the first heat exchange portion 10, the mating portion 300 of the second heat exchange portion 30 and the two mating portions of the bridge all include planar portions. The bridge 20 includes a roughly circular hole 223 and a non-circular through hole 222, and the through hole 222 extends roughly horizontally; the bridge 20 also includes a second mounting portion 207, the hole of the second mounting portion 207 is connected to the through hole 222, or in other words, the mounting portion is arranged on the side close to the through hole 222. The openings of the hole 223 and the through hole 222 near the first heat exchange part are located inside the first matching part and are surrounded by the first matching part, or in other words, the openings of the hole 223 and the through hole 222 have a flat surface for matching welding and sealing; on the other side, the openings of the hole 223 and the through hole 222 are located inside the second matching part and are surrounded by the second matching part, or in other words, the openings of the hole 223 and the through hole 222 have a flat surface for matching welding and sealing; in this way, the matching part 100 of the first heat exchange part 10 and the first matching part 200 of the bridge are on both sides. After welding and sealing, the mouths of the two through holes of the bridge are connected with the corresponding mouths for communication of the first heat exchange part. Specifically, the hole 223 of the bridge corresponds to and is connected with the communication port 105, the communication port 105 is connected with the throttling element, and the through hole 222 corresponds to and is connected with the first channel 103 of the first heat exchange part 10; the mouths of the two through holes of the bridge are connected with the corresponding mouths for communication of the second heat exchange part, the hole 223 of the bridge corresponds to and is connected with the fourth channel 302 of the second heat exchange part, and at least a part of the through hole 222 corresponds to and is connected with the first channel 303 of the second heat exchange part 30.

[0048] The bridge 20 also includes two weight-reducing holes 2032. The provision of these holes 2032 reduces the weight of the bridge and reduces the planar surface area of ​​the two mating portions of the bridge, thereby reducing the area of ​​contact between the bridge and the first and second heat exchange portions. This reduces the contact welding range and improves the welding quality. The bridge in this solution is relatively simple to manufacture. For example, it can be made of a profile with four corresponding through-holes. The bridge is manufactured by cutting, machining the mounting portion, and processing the two mating portions on either side, thus reducing the number of manufacturing steps.

[0049] The connector includes a connecting block 421 and an interface fitting 423. The connecting block 421 and interface fitting 423 can be secured by welding or sealed by a fixing member or seal. The connecting member is provided with a second interface 53, a third interface 55, a fourth interface 56, a fifth interface 57, and a sixth interface 58. The connecting block can be provided with an interface portion, which can be an integral structure of the connecting block plate portion or a separately machined structure secured to the connecting block plate portion by welding; examples include the second interface portion 4213, the third interface portion 4215, and the fourth interface portion 4216. The connecting block is further provided with through-holes 4217 and 4218, as well as a fixing hole 429 for securing or limiting the connection. The connecting piece has slots 4211 and 4212 on the side facing the second heat exchange section 30. The slots are similar to blind holes. The connecting block is provided with a through-hole 4218 in slot 4211, which communicates with slot 4211. The connecting block is provided with a third interface 55 in slot 4212, which communicates with through-hole 4217. The third interface 55 and through-hole 4217 communicate with slot 4212. The fourth interface 56 communicates with the second channel 304 of the second heat exchange section 30. The third interface 55 communicates with the fourth channel 302 of the second heat exchange section 30. The second interface 53 communicates with the third channel 301 of the second heat exchange section 30. The interface fitting 423 is provided with a fifth interface 57 and a sixth interface 58 . The fifth interface 57 corresponds to and is in communication with the through hole 4217 of the connection block, and the sixth interface 58 corresponds to and is in communication with the through hole 4218 of the connection block.

[0050] In order to indicate the flow mode of the refrigerant during use, Figure 16The exploded diagram is shown for illustration only. In actual use, several components are fixed. In a specific vehicle thermal management system, the vehicle thermal management system includes a refrigerant system and a coolant system. The coolant system includes a first coolant interface portion 101 and a second coolant interface portion 102 of a heat exchange component, and a coolant flow channel in the first heat exchange portion that is connected to the first coolant interface and the second coolant interface. The heat energy of the battery is transferred to the coolant, which flows through the first coolant interface 51 or the second coolant interface 52 through the portion of the flow channel of the first heat exchange portion, exchanges heat with the refrigerant in the refrigerant flow channel in the first heat exchange portion, and then returns to cool the battery after being cooled. The first interface 54, the second interface 53, the third interface 55, the fourth interface 56, the fifth interface 57, and the sixth interface 58 are respectively used to communicate with the refrigerant system. For example, the refrigerant cooled by the condenser enters the heat exchange component through the second interface 53, or the refrigerant from the liquid reservoir enters the heat exchange component through the second interface 53. In this way, the high-temperature and high-pressure refrigerant enters the third channel 301 of the second heat exchange part 30 through the connector, and then exchanges heat with the refrigerant in another channel in the second heat exchange part 30 and enters the fourth channel 302. The refrigerant in the fourth channel 302 is divided into two parts: one part The refrigerant flows out through the flow channel formed by the space where the groove 4212 is located, formed by the cooperation between the connecting piece and the second heat exchange part, and flows out through the third interface 55 and the fifth interface 57, such as leading to the front evaporator through the third interface 55 and leading to the rear evaporator through the fifth interface 57, or leading to the rear evaporator through the third interface 55 and leading to the front evaporator through the fifth interface 57. A throttling element can also be set in front of the front evaporator or the rear evaporator; the other part of the refrigerant enters the throttling element through the hole 223 of the bridge connected to the fourth channel 302 of the second heat exchange part and the connecting port 105 connected to the throttling element. After throttling, the throttling element 110 enters the second channel 104 of the first heat exchange part 10, and performs heat exchange in the refrigerant flow channel of the first heat exchange part and the coolant in the coolant flow channel, reaches the first channel 103, and passes through the through hole 222 of the bridge, and merges with the refrigerant coming from the first channel 303, and flows out through the first interface 54 connected to the through hole 222, such as returning to the compressor; In addition, the fourth interface 56 can be used to connect the refrigerant flowing back from the front evaporator or the rear evaporator, and this part of the low-temperature refrigerant flows to the first through the second channel 304 of the second heat exchange part. The channel 303 exchanges heat with the high-temperature refrigerant flowing from the third channel 301 to the fourth channel 302. In the first channel 303, after merging with the remaining refrigerant, it flows to the through hole 222 and can flow back to the compressor through the first interface. In addition, the sixth interface 58 can be used to connect the refrigerant flowing back from the rear evaporator or the front evaporator. This part of the low-temperature refrigerant passes through the through hole 4218, the connection piece and the second heat exchange part, and the flow channel formed by the groove 4211, through the first channel of the second heat exchange part to the through hole 222. After the three parts of the refrigerant converge, they can flow back to the compressor through the first interface. The flow direction in this article is for illustration only and cannot be used as a limitation, nor is it a requirement for closure. Other components can be added therein, such as adding other control valve components in front of the compressor.A second mounting portion 207 is also provided on the bridge 20 for mounting a sensing element 250, such as a temperature sensing element, so that the temperature sensing head 2501 passes through the mounting portion and is located in the flow channel where the through hole 222 is located. The second mounting portion 207 is located relatively close to the first channel position, so that the temperature of the refrigerant after passing through the first heat exchange portion or the outlet temperature of the evaporator can be obtained.

[0051] In this solution, except for the first interface back to the compressor, the remaining refrigerant connection ports are set on the connector, which makes connection more convenient during use and also concentrates the pipelines on the same side. In addition, if the number of evaporators is reduced accordingly, the number of interfaces can be reduced.

[0052] The heat exchange components can also be Figure 20-21 As shown, Figure 20 This is an exploded schematic diagram of the fifth embodiment of the heat exchange assembly. Figure 21 The following is a schematic diagram of the bridge of the heat exchange assembly and a schematic diagram of a cross-section along the GG and FF directions. The heat exchange assembly includes a first heat exchange section 10, a throttling element 110, a bridge 20, a second heat exchange section 30, and a connector. The bridge 20 is mostly located between the first heat exchange section 10 and the second heat exchange section 30, and the connector is located on the other side of the second heat exchange section 30. That is, the bridge 20 and the connector are located on either side of the second heat exchange section. The first heat exchange section 10, bridge 20, and second heat exchange section 30 are fixed together by welding, or the first heat exchange section 10, bridge 20, second heat exchange section 30, and connector are fixed together by welding. The first heat exchange section 10 is larger than the second heat exchange section 30.

[0053] The first heat exchange part 10 has a heat exchange core. The first heat exchange part 10 includes at least two flow channels for fluid to flow through for heat exchange. The two fluid flow channels are separated. The first heat exchange part 10 includes interlayer flow channels separated by stacked plates. The first heat exchange part 10 can flow through at least two fluids. The two fluids can exchange heat in the first heat exchange part. For example, one fluid is a refrigerant and the other can be a coolant, such as used to cool heating elements such as batteries or to cool the vehicle compartment; 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 following is an example of two fluids.

[0054] The heat exchange assembly has a first coolant interface 51, a second coolant interface 52, a first interface 54, a second interface 53, a third interface 55, and a fourth interface 56. The first heat exchange section is provided with a first coolant interface portion 101 and a second coolant interface portion 102. The bridge 20 is provided with a first interface portion 210 and a second interface portion 211. The first interface portion 210 and the second interface portion 211 are arranged on different sides of the bridge. The connecting member is provided with a third interface 55 and a fourth interface 56. The throttling element 110 is fixed or limited to the bridge 20. The first heat exchange section 10 has four channels, such as the first channel 103 and the second channel 104 (the two channels connected to the coolant are not shown). The first heat exchange part 10 includes a first coolant interface part 101 and a second coolant interface part 102. The first coolant interface part 101 has a first coolant interface 51, and the second coolant interface part 102 has a second coolant interface 52. The first coolant interface 51 and the second coolant interface 52 are connected through the flow channel of the heat exchange core. 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 part, or can be separately processed and fixed to the side plate and / or the heat exchange core of the first heat exchange part by welding. The first coolant interface part and the second coolant interface part can also be fixed to the first heat exchange part in the form of pipe connectors.

[0055] The bridge 20 has a first matching portion 200 and a second matching portion 200'. Correspondingly, the first heat exchange portion 10 has a matching portion 100, which matches the first matching portion 200 of the bridge. The second heat exchange portion 30 has a matching portion 300, which matches the second matching portion 200' of the bridge. The matching portion 100 of the first heat exchange portion 10, the matching portion 300 of the second heat exchange portion 30 and the two matching portions of the bridge all include a flat portion. The hole, groove or opening of the conducting portion for communication on the side of the first matching portion 200 of the bridge is located inside the first matching portion and each opening for communication is surrounded by The first matching part is surrounded by the first heat exchange part, and the first heat exchange part has a corresponding communicating mouth at a position corresponding to the position of each communicating mouth of the bridge, and each communicating mouth of the first heat exchange part is located inside its matching part and each communicating mouth is surrounded by the matching part; in this way, after the matching part 100 of the first heat exchange part 10 and the first matching part 200 of the bridge are welded and sealed, the communicating mouth of the bridge can be communicated with the corresponding communicating mouth of the first heat exchange part, or in other words, each communicating mouth is surrounded by a part of the matching part, and the two form a roughly closed structure at the relatively arranged matching parts. The first heat exchange section 10 has the mouth of the first channel 103 and the mouth of the second channel 104 on the side opposite the bridge 20. The bridge 20 has corresponding holes 2084 and 2091 on the side opposite the first heat exchange section 10. The mouth of hole 2084 communicates with the corresponding position of the mouth of the first channel 103 of the first heat exchange section, and the mouth of hole 2091 communicates with the corresponding position of the mouth of the second channel 104 of the first heat exchange section. Furthermore, the bridge 20 has a groove 2080 on the side opposite the first heat exchange section 10. Groove 2080 communicates with hole 2081. On the other side of the groove, there is an inclined hole 2082. The other end of inclined hole 2082 communicates with the hole of the mounting section 209. Thus, the hole of the mounting section 209 communicates with hole 2081 via inclined hole 2082 and groove 2080.

[0056] The mating portion 300 of the second heat exchange portion 30 corresponds to the position of the second mating portion 200' of the bridge. After the two are welded and sealed, the mouth of the bridge on this side for communication corresponds to the mouth of the second heat exchange portion for communication. Specifically, the second heat exchange portion 30 has three openings of the channel on the side opposite to the bridge 20: the opening of the third channel 301, the opening of the fourth channel 302, and the opening of the first channel 303. The bridge 20 has the opening of the guide hole 202, the opening of the hole 2081 and the opening of the hole 2084 on the side opposite to the second heat exchange portion 30. The opening of the third channel 301 of the second heat exchange portion corresponds to the position of the opening of the guide hole 202, the opening of the fourth channel 302 corresponds to the position of the opening of the hole 2081, and the opening of the first channel 303 corresponds to the position of the opening of the hole 2084.

[0057] The bridge 20 includes a mounting portion 209, a first interface portion 210 having a first interface 54, and a second interface portion 211 having a second interface 53. Both interface portions comprise outwardly protruding structures. The interface portions may be integral to the bridge body or separately machined and secured to the bridge body via welding. The mounting portion 209 is used to mount the throttling element 110. The first interface portion 54 communicates with the hole 2084, which is opposite and connected to the first channel 103 of the first heat exchange section. The hole 2084 is opposite and connected to the first channel 303 of the second heat exchange section.

[0058] In addition, the bridge 20 is provided with four weight-reducing holes 2032 to reduce the weight of the bridge and reduce the area of ​​the flat surface portion for welding to improve welding quality. The bridge 20 is also provided with a plurality of fixing holes 221 for fixing.

[0059] The connector includes a connecting portion 442 having a third interface 55 and a fourth interface 56. The third interface 55 corresponds to and is in communication with the fourth channel 302 of the second heat exchange portion 30, while the fourth interface 56 corresponds to and is in communication with the second channel 304 of the second heat exchange portion 30. The connector may also include a fixing member for securing or limiting the connection. The connecting portion 442 may have a fixing hole 409, which the fixing member can be fixed or fixed in. If additional interfaces are required, this can be accommodated by adding connecting portions.

[0060] The heat exchange assembly can facilitate the installation and connection of the thermal management system, reduce the number of connecting pipes, and reduce the volume of the system. Taking the heat exchange assembly used in a vehicle thermal management system as an example, 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 view. This is only for the purpose of clarity. The vehicle thermal management system includes a refrigerant system and a coolant system. Figure 20As shown in other figures, the coolant system includes a first coolant interface portion 101 and a second coolant interface portion 102 of the heat exchange component, and a coolant flow channel in the first heat exchange portion that is connected to the first coolant interface and the second coolant interface. The heat of the battery is transferred to the coolant, which flows through the first coolant interface 51 or the second coolant interface 52 through the part of the flow channel of the first heat exchange portion, and exchanges heat with the refrigerant in the other flow channel in the first heat exchange portion. After cooling, the coolant returns to cool the battery. The first interface 54, the second interface 53, the third interface 55, and the fourth interface 56 are used for connecting the refrigerant system. For example, the refrigerant cooled by the condenser enters the heat exchange component through the second interface 53, or the refrigerant through the liquid reservoir enters the heat exchange component through the second interface 53. The high-temperature and high-pressure refrigerant passes through the guide hole 202 to the third channel of the second heat exchange part, and exchanges heat with the refrigerant in another flow channel in the second heat exchange part 30 to the fourth channel 302. The refrigerant in the fourth channel 302 is divided into two parts: one part flows out from the third interface 55 through the connecting part 442, such as the refrigerant passes through the third interface 55 to the front evaporator or For other evaporators, a throttling element can be further provided in front of the front evaporator; another part of the refrigerant enters the throttling element 110 through the hole 2081, the groove 2080 and the inclined hole 2082 of the bridge, and after being throttled by the throttling element 110, passes through the hole 2091 to the second channel 104 of the first heat exchange part 10, and exchanges heat with the coolant in the coolant channel of the first heat exchange part, reaches the first channel 103, and passes through the hole 2084 of the bridge, and merges with the refrigerant coming from the first channel 303 of the second heat exchange part, and flows out through the first interface 54 connected to the hole 2084, such as returning to the compressor. The fourth port 56 can be used to connect the refrigerant flowing back from the previous evaporator or other evaporators. This portion of low-temperature refrigerant flows to the first channel 303 through the second channel 304 of the second heat exchange portion, and performs heat exchange with the high-temperature refrigerant flowing from the third channel 301 to the fourth channel 302. In this way, part of the low-temperature refrigerant is used to cool the high-temperature refrigerant, which can reduce the condensation temperature of the refrigerant without increasing the temperature of the refrigerant returning to the compressor. The flow direction described herein is for illustration only and is not intended to be limiting, nor is it a requirement for closure. Other components may be added thereto, such as other control valves in front of the compressor.

[0061] The weight-reducing holes 2032 herein are for reducing weight and making the bridge suitable for welding with the first heat exchange part and the second heat exchange part. It is more convenient to set it as a through hole. The weight-reducing holes 2032 pass through from the side of the bridge close to the first heat exchange part to the side close to the second heat exchange part. The weight-reducing holes 2032 are not connected to the channel of the first heat exchange part, the weight-reducing holes 2032 are not connected to the channel of the second heat exchange part, and the weight-reducing holes 2032 are not connected to the hole or groove used for communication of the bridge; the distance between the weight-reducing holes 2032 and the hole for communication in the direction of the bridge or close to the first heat exchange part is greater than or equal to 1.5 mm, and the distance between the weight-reducing holes 2032 and the groove for communication in the direction of the bridge or close to the first heat exchange part is greater than or equal to 1.5 mm; the distance between the weight-reducing holes 2032 and the hole for communication in the direction of the bridge or close to the second heat exchange part is greater than or equal to 1.5 mm, and the distance between the weight-reducing holes 2032 and the groove for communication in the direction of the bridge or close to the second heat exchange part is greater than or equal to 1.5 mm.

[0062] The bridge includes a first interface that simultaneously connects a channel of the first heat exchange part and a channel of the second heat exchange part, and is connected to the compressor of the system through the first interface, and has other holes or grooves that are connected. In this way, the bridge can relatively easily realize the fluid communication between the two heat exchange parts. Different system requirements can be achieved by changing the structure of the bridge, making the system pipeline simple, reducing the setting of pipelines between the interfaces, and making the system connection simple and convenient. The refrigerant flow channel of the first heat exchange part of the above-mentioned component can be a single flow, that is, flowing from the second channel 104 to the first channel 103. It can also be a three-flow or even a five-flow flow. For example, in the case of a three-flow flow, the first heat exchange part is roughly divided into three parts horizontally. The first flow flows from the first part of the second channel 104 to the first part of the first channel 103, then flows from the middle part of the first channel 103 to the middle part of the second channel 104, and then flows from the third part of the second channel 104 to the third part of the first channel 103. Therefore, the embodiment only describes the outflow from the first channel 103. Unless otherwise specified, the thickness of the bridge refers to the thickness between the planar parts of the two mating parts of the bridge. Furthermore, the bridge has a certain thickness to facilitate the placement of the first interface. For example, if the diameter of the first interface is 15 mm, the thickness of the bridge portion where the first interface is located should be greater than or equal to 19 mm. If the diameter of the first interface is 16 mm, the thickness of the bridge portion where the first interface is located should be greater than or equal to 20 mm, or even close to 21 mm or 22 mm. The first interface portion 210 can partially protrude from the second heat exchange portion, making the connection relatively convenient. Alternatively, the bridge can be provided without protrusion, so that the first interface has a similar concave connection structure.

[0063] The flow direction described herein is for illustrative purposes only and is not intended to be limiting or a requirement for closure. Other components may be added, such as control valves in front of the compressor. For example, the flow to the evaporator may include a throttling element or even a control valve in front of the evaporator. The second channel 104 of the first heat exchange unit is connected to the outlet of the throttling element 110. When the throttling element 110 is fixed to the first heat exchange unit, the second channel 104 may not have an outlet when facing the bridge. The diagram is merely for illustrative purposes. These technical solutions can be modified based on the actual system. The connectivity is subject to the specific technical solution. For example, if one interface is connected to another, this does not preclude simultaneous connectivity with other interfaces.

[0064] In this article, the holes and / or slots used for communication include various situations: holes used for communication, slots used for communication, holes and slots used for communication, holes and holes used for communication, slots and slots used for communication, etc.; the same applies to the holes and / or slots connected to the second heat exchange part: it can be a hole connected to the second heat exchange part, a slot connected to the second heat exchange part, or a hole and slot connected to the second heat exchange part. Communication also includes direct communication and indirect communication. The two holes or slots used for communication of the bridge facing the first heat exchange part do not exclude the possibility that they can also be connected to the second heat exchange part. If they are in the form of through holes, they can be directed to the first heat exchange part at the same time, or directed to the second heat exchange part and connected to the second heat exchange part. The description of the two being connected through a pipeline or other means in this article is not a closed description. It means that the two are connected, and it also includes the possibility that there are other components between the two, such as throttling elements, separators, control valves, one-way valves, heat exchangers, etc. The connection method herein is not closed. For example, if the first interface is connected to the first channel of the first heat exchange component via the holes and / or grooves of the bridge for communication, the connection can be achieved solely by the flow channel formed by the holes and / or grooves of the bridge. The flow channel that achieves communication can also include a portion of the flow channel formed by the bridge and the first heat exchange component, or a portion of the flow channel formed by the bridge and the first heat exchange component and the second heat exchange component. For example, the third interface is connected to the second interface via the second heat exchange component, which means that at least a portion of the flow channel between the third interface and the second interface passes through the second heat exchange component, or that the flow channel between the third interface and the second interface includes the second heat exchange component. This does not exclude the remaining portion of the flow channel. For example, the flow between the third interface and the second interface may also include the flow channel formed by the connector, the bridge, or both together with the second heat exchange component. The fourth interface is connected to the first interface via the second heat exchange component, which also means that at least a portion of the flow channel between the fourth interface and the first interface passes through the second heat exchange component, or that the flow channel between the fourth interface and the first interface includes the second heat exchange component. The same applies to other aspects.

[0065] 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. For example, with respect to 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 within the scope of the claims of this solution.

Claims

1. A heat exchange assembly, comprising a first heat exchange portion (10), a bridge (20), and a second heat exchange portion (30), wherein the bridge (20) is at least partially located between the first heat exchange portion (10) and the second heat exchange portion (30), and the first heat exchange portion, the bridge, and the second heat exchange portion are fixed by welding; The heat exchange component includes a first interface (54) and a second interface (53); the bridge includes a first interface portion (210), the first interface (54) is located in the first interface portion (210), and the first interface is an external interface; the first heat exchange portion includes a first channel (103) and a second channel (104), and the second heat exchange portion includes a first channel (303) and a second channel (304); the bridge includes a hole or a groove communicating with the first channel (103) of the first heat exchange portion, and the bridge includes a hole or a groove communicating with the first channel (303) of the second heat exchange portion; the first interface is communicated with the first channel (103) of the first heat exchange portion through the hole and / or groove for communication of the bridge, and the first interface is communicated with the first channel (303) of the second heat exchange portion through the hole and / or groove for communication of the bridge.

2. The heat exchange assembly according to claim 1, characterized in that: The first interface portion (210) at least partially protrudes from the second heat exchange portion or the first heat exchange portion; the first heat exchange portion has a heat exchange core, the first heat exchange portion includes at least two fluid flow channels, and the two fluid flow channels are not connected; the first heat exchange portion also includes a third channel and a fourth channel, and the third channel is connected to the fourth channel; the second heat exchange portion also includes a third channel (301) and a fourth channel (302), and the third channel of the second heat exchange portion is connected to the fourth channel; the first heat exchange portion includes a first cooling liquid interface portion (101) and a second cooling liquid interface portion (102) connected to the third channel or the fourth channel Cooling liquid interface portion (102); the bridge includes two holes or grooves for communication toward the first heat exchange portion; the bridge includes at least two holes or grooves capable of communicating with the second heat exchange portion, and the mouths of the holes or grooves of the bridge capable of communicating with the second heat exchange portion face the second heat exchange portion; one of the holes or grooves of the bridge for communication toward the first heat exchange portion is relatively communicated with the first channel (103) of the first heat exchange portion and is communicated with the first interface; one of the two holes or grooves of the bridge capable of communicating with the second heat exchange portion is communicated with the first channel of the second heat exchange portion and is communicated with the first interface.

3. The heat exchange assembly according to claim 1, characterized in that: The first interface portion (210) at least partially protrudes from the second heat exchange portion or the first heat exchange portion; the heat exchange assembly further comprises a throttling element and a connecting piece, the throttling element is fixed or limitedly arranged with the first heat exchange portion or the bridge, and the connecting piece is fixedly arranged with the second heat exchange portion; the heat exchange assembly further comprises a third interface (55) and a fourth interface (56), and the connecting piece has the third interface (55) and the fourth interface (56); the bridge comprises two holes or grooves for communication toward the first heat exchange portion; the bridge comprises three holes or grooves capable of communicating with the second heat exchange portion, the mouth of the hole or groove of the bridge capable of communicating with the second heat exchange portion faces the second heat exchange portion; the other holes or grooves of the bridge for communication toward the first heat exchange portion One of the bridges is in communication with the throttling element, the other is in communication with the first channel (103) of the first heat exchange part, and is in communication with the first interface; one of the holes or slots of the bridge that can be in communication with the second heat exchange part is in communication with the first channel of the second heat exchange part; the bridge includes a second interface part (211), and the second interface part (211) is provided with the second interface (53); the bridge includes holes and or slots in communication with the second interface (53), and the holes and or slots in communication with the second interface (53) of the bridge are in communication with at least one channel of the first heat exchange part or the second heat exchange part; the third interface is in communication with the second interface (53) through the second heat exchange part; the fourth interface is in communication with the first interface through the second heat exchange part.

4. The heat exchange assembly according to claim 1, characterized in that: The first interface portion (210) at least partially protrudes from the second heat exchange portion or the first heat exchange portion; the heat exchange component further includes a connector, which is fixedly arranged with the second heat exchange portion; the heat exchange component further includes a third interface (55), a fourth interface (56), and a fifth interface (57), and the connector has the third interface (55), the fourth interface (56), and the fifth interface (57); the bridge includes two holes or grooves for communication toward the first heat exchange portion; the bridge includes three holes or grooves that can be communicated with the second heat exchange portion, and the mouths of the holes or grooves of the bridge that can be communicated with the second heat exchange portion face the second heat exchange portion; one of the holes or grooves of the bridge that are for communication toward the first heat exchange portion is communicated with the first channel (103) of the first heat exchange portion and is communicated with the first interface; one of the holes or grooves of the bridge that can be communicated with the second heat exchange portion is communicated with the first channel of the second heat exchange portion; the third interface is communicated with the second interface (53); the fourth interface is communicated with the first interface; and the fifth interface is communicated with the second interface.

5. The heat exchange assembly according to any one of claims 1 to 4, characterized in that: The second heat exchange part is not larger than the first heat exchange part, and the first interface part (210) at least partially protrudes from the second heat exchange part; the thickness of the portion of the bridge where the first interface part is set is greater than or equal to 19 mm; the bridge has a first matching part (200) and a second matching part (200'), the first heat exchange part has a matching part (100), and the matching part of the first heat exchange part corresponds to the first matching part of the bridge; the second heat exchange part has a matching part (300), and the matching part of the second heat exchange part corresponds to the second matching part (200') of the bridge; the matching part of the first heat exchange part, the matching part of the second heat exchange part and the two matching parts of the bridge include a planar part; the mouth of the hole or groove of the bridge facing the first heat exchange part for communication is located inside the first matching part; the mouth of the hole or groove of the bridge that can communicate with the second heat exchange part and is close to the second heat exchange part is located inside the second matching part.

6. The heat exchange assembly according to any one of claims 1 to 4, characterized in that: The bridge also includes at least one weight-reducing hole (2032); the weight-reducing hole (2032) is not connected to the hole of the first heat exchange part, the weight-reducing hole (2032) is not connected to the hole of the second heat exchange part, and the weight-reducing hole (2032) is not connected to the hole or groove for communication of the bridge; the distance between the weight-reducing hole and the hole or groove for communication of the bridge toward the first heat exchange part is greater than or equal to 1.5 mm, and the distance between the weight-reducing hole and the hole or groove for communication of the bridge toward the second heat exchange part is greater than or equal to 1.5 mm.

7. The heat exchange assembly according to claim 5, characterized in that: The bridge also includes at least one weight-reducing hole (2032); the weight-reducing hole (2032) is not connected to the hole of the first heat exchange part, the weight-reducing hole (2032) is not connected to the hole of the second heat exchange part, and the weight-reducing hole (2032) is not connected to the hole or groove for communication of the bridge; the distance between the weight-reducing hole and the hole or groove for communication of the bridge toward the first heat exchange part is greater than or equal to 1.5 mm, and the distance between the weight-reducing hole and the hole or groove for communication of the bridge toward the second heat exchange part is greater than or equal to 1.5 mm.

8. The heat exchange assembly according to any one of claims 1 to 4, characterized in that: The heat exchange assembly includes a connecting piece, which is located on a side of the second heat exchange part opposite to the bridge; the connecting piece is fixedly connected to the second heat exchange part; the connecting piece includes a third interface (55), a fourth interface (56), and a fifth interface (57); the third interface is connected to the second interface (53) through the second heat exchange part, the fourth interface is connected to the first interface through the second heat exchange part, and the fifth interface is connected to the second interface (53) through the second heat exchange part.

9. The heat exchange assembly according to claim 5, characterized in that: The heat exchange assembly includes a connecting piece, which is located on a side of the second heat exchange part opposite to the bridge; the connecting piece is fixedly connected to the second heat exchange part; the connecting piece includes a third interface (55), a fourth interface (56), and a fifth interface (57); the third interface is connected to the second interface (53) through the second heat exchange part, the fourth interface is connected to the first interface through the second heat exchange part, and the fifth interface is connected to the second interface (53) through the second heat exchange part.

10. A vehicle thermal management system, comprising a refrigerant flow channel, and comprising a heat exchange component as claimed in any one of the above claims; the heat exchange component comprises a first interface portion (210), the first interface portion (210) having a first interface (54), and the heat exchange component comprises a second interface (53), a third interface (55), and a fourth interface (56); the vehicle thermal management system comprises a compressor, a condenser, and at least one evaporator, the outlet of the condenser is connected to the second interface through a pipeline, or a liquid reservoir is further included between the outlet of the condenser and the second interface, the inlet of the compressor is connected to the first interface, the inlet of the evaporator is connected to the third interface, or the vehicle 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.

11. The vehicle thermal management system according to claim 10, wherein the vehicle thermal management system includes a coolant flow channel, the first heat exchange part includes a first coolant interface part (101) and a second coolant interface part (102), the first coolant interface part (101) has a first coolant interface (51), and the second coolant interface part (102) has a second coolant interface (52); the coolant flow channel flows through the first coolant interface part, the second coolant interface part and the coolant flow channel in the first heat exchange part that is connected to the first coolant interface and the second coolant interface; the vehicle thermal management system includes a front evaporator and a rear evaporator, the heat exchange component further includes a fifth interface, the inlet of one of the front evaporator or the rear evaporator is connected to the third interface or the vehicle thermal management system is provided with a throttling element between the inlet of one of the front evaporator or the rear evaporator and the third interface, and the inlet of the other evaporator is connected to the fifth interface or the vehicle thermal management system is provided with a throttling element between the inlet of the other evaporator and the fifth interface, and the outlet of the front evaporator and / or the rear evaporator is connected to the fourth interface.

12. The vehicle thermal management system according to claim 10, wherein the vehicle thermal management system includes a coolant flow channel, the first heat exchange portion includes a first coolant interface portion (101) and a second coolant interface portion (102), the first coolant interface portion (101) has a first coolant interface (51), and the second coolant interface portion (102) 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 portion that is connected to the first coolant interface and the second coolant interface; the vehicle thermal management system includes The front evaporator and the rear evaporator, the heat exchange component also includes a fifth interface and a sixth interface, the inlet of one of the front evaporator or the rear evaporator is connected to the third interface or the vehicle thermal management system is provided with a throttling element between the inlet of one of the front evaporator or the rear evaporator and the third interface, the inlet of the other evaporator is connected to the fifth interface or the vehicle thermal management system is provided with a throttling element between the inlet of the other evaporator and the fifth interface, the outlet of one of the front evaporator or the rear evaporator is connected to the fourth interface, and the outlet of the other evaporator is connected to the sixth interface.

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