Heat exchange module and thermal management system

Abstract

This application provides a heat exchange module, including a first heat exchanger. The first heat exchanger includes multiple plates alternately stacked along its thickness direction. Each plate includes a side plate, which is the outermost plate in the thickness direction of the first heat exchanger. A first channel is located in at least one of the side plates and the plate closest to the side plate, and the first channel has a throttling function. In this application, when the first heat exchanger is in a certain operating state, the fluid in the first flow channel can exchange heat with the fluid in the second flow channel. The first channel enables a throttling function. The first heat exchanger integrates both throttling and heat exchange functions, which, compared to related technologies, can shorten or eliminate some piping, facilitating miniaturization. This application also provides a thermal management system that is conducive to miniaturization.

Description

Technical Field

[0001] This application relates to the field of heat exchange technology, and more particularly to a heat exchange module and a thermal management system. Background Technology

[0002] In related technologies, expansion valves (or throttling devices) with throttling channels are connected to other components through pipelines. Both the expansion valve and the pipeline require a certain amount of space, resulting in a large space requirement for the combination of pipelines and expansion valves. Summary of the Invention

[0003] The purpose of this application is to provide a heat exchange module and thermal management system that are conducive to miniaturization.

[0004] To achieve the above objectives, the embodiments of this application adopt the following technical solutions:

[0005] In a first aspect, a heat exchange module includes: a first heat exchanger comprising a plurality of plates alternately stacked along the thickness direction of the first heat exchanger, the plurality of plates including side plates, the side plates being the outermost plates in the thickness direction of the first heat exchanger; the first heat exchanger having a first through slot, a first flow channel and a second flow channel, the first through slot, the first flow channel and the second flow channel being isolated from each other within the first heat exchanger, the first through slot being located at at least one of the side plates and the plate closest to the side plate, the first through slot having a throttling function.

[0006] In this application, the first heat exchanger has a first through slot, which is located in at least one of the side plate and the plate closest to the side plate. The first through slot has a throttling function. When the heat exchange module is in a certain operating state, the fluid in the first flow channel and the fluid in the second flow channel can exchange heat. The first through slot realizes the throttling function. The first heat exchanger integrates the throttling function and the heat exchange function. Compared with related technologies, it can shorten the pipeline or eliminate part of the pipeline, which is beneficial to miniaturization.

[0007] Secondly, a thermal management system includes a compressor and the aforementioned heat exchange module, wherein the outlet of the compressor is connected to the inlet of the first channel, the outlet of the first channel is connected to the compressor's gas replenishment and enthalpy-increasing inlet, and the second flow channel is connected to the compressor's gas inlet.

[0008] In this application, the first heat exchanger has a first through slot, which is located in at least one of the side plate and the plate closest to the side plate. When the thermal management system is in a certain working mode, the first heat exchanger can realize heat exchange between the fluid in the first flow channel and the fluid in the second flow channel. The first through slot realizes the throttling function. The first heat exchanger integrates the throttling function and the heat exchange function. Compared with related technologies, it can shorten the pipeline or eliminate part of the pipeline, which is beneficial to miniaturization. Attached Figure Description

[0009] Figure 1 This is a schematic diagram of the structure of an embodiment of the heat exchange module of this application;

[0010] Figure 2 This is an exploded view of an embodiment of the heat exchange module of this application;

[0011] Figure 3 This is an exploded view of another embodiment of the heat exchange module of this application;

[0012] Figure 4 This is an exploded view of an embodiment of the first heat exchanger of this application, wherein the side plate is in perspective.

[0013] Figures 5 to 9 This is a cross-sectional schematic diagram of an embodiment of the heat exchange module of this application;

[0014] Figure 10 This is an exploded view of another embodiment of the heat exchange module of this application;

[0015] Figure 11 yes Figure 10 A cross-sectional schematic diagram of the heat exchange module shown;

[0016] Figure 12 This is a schematic diagram of a first mode of an embodiment of the thermal management system of this application;

[0017] Figure 13 This is a schematic diagram of a second mode of an embodiment of the thermal management system of this application. Detailed Implementation

[0018] Exemplary embodiments will now be described in detail, examples of which are illustrated in the accompanying drawings. When the following description relates to the drawings, unless otherwise indicated, the same numbers in different drawings denote the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with this application. Rather, they are merely examples of apparatuses and methods consistent with some aspects of this application as detailed in the appended claims.

[0019] The terminology used in this application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. The singular forms “a,” “the,” and “the” used in this application and the appended claims are also intended to include the plural forms unless the context clearly indicates otherwise.

[0020] It should be understood that the terms "first," "second," and similar terms used in this application specification and claims do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Similarly, "a" or "one," and similar terms do not indicate a quantity limitation, but rather indicate the presence of at least one; "multiple" indicates two or more. Unless otherwise stated, terms such as "front," "rear," "lower," and / or "upper" are for illustrative purposes only and are not limited to a location or spatial orientation. Terms such as "comprising" or "including" indicate that the elements or objects preceding "comprising" encompass the elements or objects listed following "comprising" or "including" and their equivalents, but do not exclude other elements or objects.

[0021] The heat exchange module 10 of the exemplary embodiment of this application will now be described in detail with reference to the accompanying drawings. Unless otherwise specified, the features of the following embodiments and implementations can complement or combine with each other.

[0022] According to a specific embodiment of the heat exchange module 10 of this application, such as Figures 1 to 9 As shown, the heat exchange module 10 includes a first heat exchanger 3, which includes a plurality of plates alternately stacked along the thickness direction of the first heat exchanger 3. The plurality of plates include a side plate B1, which is the outermost plate in the thickness direction of the first heat exchanger 3. The first heat exchanger 3 has a first through-slot T1, a first flow channel B5, and a second flow channel B6. The first through-slot T1, the first flow channel B5, and the second flow channel B6 are isolated from each other within the first heat exchanger 3. The first through-slot T1 is located at least one of the side plate B1 and the plate closest to the side plate B1, and the first through-slot T1 has a throttling function.

[0023] In this application, when the heat exchange module 10 is in a certain operating state, the first heat exchanger 3 can realize the heat exchange between the fluid in the first flow channel B5 and the fluid in the second flow channel B6. The first through slot T1 realizes the throttling function. The first heat exchanger 3 integrates the throttling function and the heat exchange function. Compared with related technologies, it can shorten the pipeline or eliminate part of the pipeline, which is conducive to the miniaturization of the heat exchange module 10.

[0024] Reference Figures 2 to 9 The first heat exchanger 3 includes multiple plates, each plate being approximately rectangular in shape. The multiple plates of the first heat exchanger 3 include an end plate B4, a side plate B1, at least two second plates B3, and at least one first plate B2. The first plates B2 and the second plates B3 are stacked alternately along the thickness direction of the first heat exchanger 3. The side plate B1 and the end plate B4 are located on opposite sides of the thickness direction of the first heat exchanger 3, and both the side plate B1 and the end plate B4 are located on the outermost side of the first heat exchanger 3.

[0025] The first heat exchanger 3 has a first channel 31, a second channel 32, a third channel 33, a fourth channel 34, a fifth channel 35, a first inter-plate channel (not shown in the figure), and a second inter-plate channel (not shown in the figure). The first inter-plate channel and the second inter-plate channel are isolated from each other in the first heat exchanger 3. The first channel 31, the second channel 32, and the third channel 33 are respectively connected to the first inter-plate channel, and the fourth channel 34 and the fifth channel 35 are respectively connected to the second inter-plate channel. The first channel 31, the second channel 32, the third channel 33, the fourth channel 34, and the fifth channel 35 all extend along the thickness direction of the first heat exchanger 3. One side opening of the first channel 31, the second channel 32, the third channel 33, the fourth channel 34, and the fifth channel 35 is located on the side plate B1. The other opening of the second channel 32, the third channel 33, the fourth channel 34, and the fifth channel 35 is blocked by the end plate B4. The other opening of the first channel 31 is blocked by the plate located in the middle.

[0026] In this embodiment, refer to Figures 6 to 8 The extension length of the first channel 31 is less than the extension length of the other channels of the first heat exchanger 3. The first channel 31 communicates with a portion of the first inter-plate channel, and the first channel 31 can communicate with another portion of the first inter-plate channel through the second channel 32. In some other embodiments, the extension length of the first channel 31 is the same as the extension length of the second channel 32, and the first channel 31 communicates with all the first inter-plate channels.

[0027] The first heat exchanger 3 has a first flow channel B5 and a second flow channel B6, which are isolated from each other within the first heat exchanger 3. The first flow channel B5 includes a first channel 31, a second channel 32, a third channel 33, and a first inter-plate channel. The second flow channel B6 includes a fourth channel 34, a fifth channel 35, and a second inter-plate channel. Optionally, the first heat exchanger 3 is a plate heat exchanger used as an intermediate heat exchanger, and is used to achieve heat exchange between refrigerants.

[0028] For ease of description, the following description uses a first heat exchanger 3 comprising a side plate B1, an end plate B4, two first plates B2, and two second plates B3 as an example. Specifically, along the thickness direction of the first heat exchanger 3, the stacked plates are, in sequence, side plate B1, second plate B3, first plate B2, second plate B3, first plate B2, and end plate B4. The second plate inter-channel is located between the back side of the second plate B3 and the front side of the adjacent first plate B2, and the first plate inter-channel is located between the front side of the second plate B3 and the back side of the adjacent first plate B2. The first plate B2 and the second plate B3 each have a seventh orifice F2, an eighth orifice F3, a ninth orifice F4, and a tenth orifice F5. The first plate B2, which is closer to the side plate B1, and the second plate B3, which is closer to the side plate B1, each have a sixth orifice F1. The sixth orifice F1 of the first plate B2 and the sixth orifice F1 of the second plate B3 are stacked to form a first channel 31. The seventh orifice F2 of the first plate B2 and the seventh orifice F2 of the second plate B3 are stacked to form a second channel 32. The eighth orifice F3 of the first plate B2 and the eighth orifice F3 of the second plate B3 are stacked to form a third channel 33. The ninth orifice F4 of the first plate B2 and the ninth orifice F4 of the second plate B3 are stacked to form a fourth channel 34. The tenth orifice F5 of the first plate B2 and the tenth orifice F5 of the second plate B3 are stacked to form a fifth channel 35.

[0029] In some embodiments, refer to Figures 6 to 8 The heat exchange module 10 includes a second heat exchanger 2, which comprises multiple plates, each plate being approximately rectangular in shape, and the multiple plates are stacked along the thickness direction of the second heat exchanger 2. Optionally, the second heat exchanger 2 is a plate heat exchanger used as an economizer, and the second heat exchanger 2 is used to realize heat exchange between refrigerants.

[0030] Multiple plates of the second heat exchanger 2 are stacked to form a sixth channel 21, a seventh channel 22, an eighth channel 23, a ninth channel 24, multiple third inter-plate channels (not shown in the figure), and multiple fourth inter-plate channels (not shown in the figure). The sixth channel 21 and the seventh channel 22 are connected to the third inter-plate channels, and the eighth channel 23 and the ninth channel 24 are connected to the fourth inter-plate channels. The third and fourth inter-plate channels are isolated from each other within the second heat exchanger 2. The sixth channel 21, the seventh channel 22, the eighth channel 23, and the ninth channel 24 all extend along the thickness direction of the second heat exchanger 2.

[0031] In this embodiment, the second heat exchanger 2 is installed on the side plate B1, and the plate stacking direction of the second heat exchanger 2 is parallel or coincident with the plate stacking direction of the first heat exchanger 3. In the second heat exchanger 2, the sixth channel 21, the eighth channel 23, and the ninth channel 24 are all blind holes, and each has an opening on the side near the side plate B1. The seventh channel 22 is a through hole. In the heat exchange module 10, the sixth channel 21, the seventh channel 22, the eighth channel 23, and the ninth channel 24 are all blind holes. Specifically, the second heat exchanger 2 has a top plate on the side away from the side plate B1. The top plate is a solid plate. One side of the sixth channel 21, the eighth channel 23, and the ninth channel 24 are all blocked by the top plate. The openings on the other side of the sixth channel 21, the eighth channel 23, and the ninth channel 24 are respectively connected to different flow channels of the first heat exchanger 3. The seventh channel 22 has an opening located on the top plate. The other side of the seventh channel 22 is blocked by the side plate B1. The seventh channel 22 is connected to the external space of the heat exchange module 10.

[0032] The second heat exchanger 2 has a third flow channel A1 and a fourth flow channel A2, which are isolated from each other. The third flow channel A1 includes a sixth channel 21, a seventh channel 22, and a third inter-plate channel. The fourth flow channel A2 includes an eighth channel 23, a ninth channel 24, and a fourth inter-plate channel. The first through-slot T1 is connected to the third flow channel A1, and the fourth flow channel A2 is connected to the first flow channel B5. In the plate stacking direction of the first heat exchanger 3, the ninth channel 24 is correspondingly arranged with the second channel 32 and is connected to it.

[0033] Reference Figures 2 to 10 The first heat exchanger 3 has several grooves located in at least one of the side plate B1 and the plate near the side plate B1. In this embodiment, the plate near the side plate B1 is one of the second plates B3. The grooves, the first flow channel B5, and the second flow channel B6 are isolated from each other within the first heat exchanger 3. The grooves are used to connect the inner cavity between the two components mounted on the side plate B1. The grooves replace the function of pipes, which can reduce the use of external pipes and reduce the space occupied by the heat exchange module 10.

[0034] In some embodiments, refer to Figure 10 and Figure 11 A groove is entirely provided on the second plate B3. A portion of the second plate B3 is recessed to form a groove. The openings of the grooves all face the side plate B1. The side plate B1 seals the periphery of the groove openings.

[0035] In some embodiments, refer to Figure 4 A groove is set entirely on the side plate B1, and a portion of the side plate B1 is recessed to form a groove. The openings of the grooves all face the second plate B3, and the second plate B3 seals the periphery of the groove openings.

[0036] In some embodiments, a portion of a groove is disposed on the second plate B3, and a portion of the second plate B3 is recessed to form the portion of the groove. The openings of the grooves located on the second plate B3 all face the side plate B1. Another portion of the same groove is disposed on the side plate B1, and a portion of the side plate B1 is recessed to form the portion of the groove. The openings of the grooves located on the side plate B1 all face the second plate B3. The periphery of the openings of the two portions of the grooves can be sealed to each other.

[0037] In some embodiments, when the number of grooves is at least two, all grooves may be provided on the side plate B1; all grooves may be provided on the second plate B3; or some grooves may be provided on the side plate B1 and other grooves may be provided on the second plate B3. The structural design of each groove is as described above, as long as it does not affect the communication relationship, and this application does not impose any restrictions.

[0038] In this application, the second plate B3 is a solid structure, meaning that the second plate B3 does not have internal flow channels. The front side of the second plate B3 near the side plate B1, except for the area with grooves, is flush with and sealed to the back side of the side plate B1, without forming a channel between them. However, it should be understood that since several components are installed on the side plate B1, the inner cavity of some components needs to communicate with the inner cavity of the first heat exchanger 3. Therefore, the second plate B3 near the side plate B1 has several connecting holes that penetrate the second plate B3 along its thickness direction to achieve communication.

[0039] In this application, side plate B1 is a solid structure, meaning it does not have internal flow channels. However, it should be understood that side plate B1 has a through hole, which can be used for the installation of other components or for communication between the inner cavity of a component and the inner cavity of the first heat exchanger 3. Specifically, before other components are assembled with the first heat exchanger 3, the through hole of side plate B1 is connected to the groove; after other components are assembled, a portion of the component is located in the through hole, and the component is sealed to the peripheral wall of the through hole, while the inner cavity of the component is connected to the groove.

[0040] The first heat exchanger 3 has a first through-slot T1, which communicates with the sixth channel 21. The first through-slot T1, the first flow channel B5, and the second flow channel B6 are isolated from each other within the first heat exchanger 3. The arrangement of the first through-slot T1 is described in the above description of the groove. In this application, the first through-slot T1 is a slit, roughly elongated in shape, and has a small hydraulic diameter, giving it a throttling capability. The hydraulic diameter of the first through-slot T1 is designed according to the required throttling capability.

[0041] In this embodiment, refer to Figure 4 and 6 A first through groove T1 is provided on the side plate B1. A groove is machined into the side plate B1, and this groove mates with the plate closest to the side plate B1 to form the first through groove T1. In some other embodiments, refer to... Figure 10 and 11 The first through groove T1 is located on the plate closest to the side plate B1. A groove is punched into the plate, and then the groove mates with the side plate B1 to form the first through groove T1. Of course, the first through groove T1 can also be partially located on the side plate B1 and partially located on the plate closest to the side plate B1.

[0042] The first heat exchanger 3 has a second through groove T2, which communicates with the eighth channel 23. The second through groove T2, the first flow channel B5, the second flow channel B6, and other grooves are isolated from each other within the first heat exchanger 3. The arrangement of the second through groove T2 is described in the above description of the grooves. Optionally, the outer contour of the second through groove T2 is approximately waist-shaped, and the waist-shaped structure has better pressure resistance.

[0043] It is understandable that, on a plane perpendicular to the thickness direction of the first heat exchanger 3, the projection of the outer contour of the first through groove T1 is smaller than the projection of the outer contour of the second through groove T2.

[0044] In one possible embodiment, refer to Figure 1 , Figure 2 , Figure 3 and Figure 6 The heat exchange module 10 includes a flow-diverting component 1, which has flow-diverting capability. The flow-diverting component 1 has a first interface 11, a second interface 12, and a third interface 13. The first interface 11 is the inlet for fluid to flow into the flow-diverting component 1, and the second interface 12 and the third interface 13 are the outlets for fluid to flow out of the flow-diverting component 1. Optionally, the flow-diverting component 1 is a valve, with the first interface 11, the second interface 12, and the third interface 13 respectively communicating with the inner cavity of the flow-diverting component 1. The first interface 11 is connected to the second interface 12 and the third interface 13 through a valve core. Optionally, the flow-diverting component 1 is a three-way component, where fluid flowing through the flow-diverting component 1 is divided into two paths. Optionally, the flow-diverting component 1 is a three-way flow-diverting component, such as a three-way valve, a three-way proportional valve, a combination of a three-way component and a shut-off valve, or a combination of proportional valves.

[0045] In one possible embodiment, the diverter 1 further has a fourth interface 14, which communicates with the inner cavity of the diverter 1 and also serves as the outlet for fluid to flow out of the diverter 1. When the diverter 1 is a valve, the valve core of the diverter 1 switches the connection state of the four through holes. The diverter 1 has two operating states: the first interface 11 is connected to the fourth interface 14, and the first interface 11, the third interface 13, and the second interface 12 are isolated from each other; or the first interface 11 is simultaneously connected to the third interface 13 and the second interface 12, and the first interface 11 and the fourth interface 14 are isolated from each other. Optionally, the diverter 1 is a four-way diverter.

[0046] For ease of description and understanding, the following explanation will use the diversion component 1 as an example, which has four ports and a valve core. The second port 12 is connected to the first through channel T1, the third port 13 is connected to the eighth channel 23, and the fourth port 14 is connected to the second channel 32. The hydraulic diameter at the second port 12 is larger than the hydraulic diameter at the first through channel T1.

[0047] In this embodiment, the flow splitting component 1 has a flow splitting function, and the first heat exchanger 3 has a first through groove T1 that can realize the throttling function. When the heat exchange module 10 is in a certain operating state, the first interface 11 is simultaneously connected to the third interface 13 and the second interface 12. After the fluid flows through the flow splitting component 1, it is divided into two paths: one path flows through the first through groove T1 to realize throttling and then enters the third flow channel, and the other path flows into the fourth flow channel. The first heat exchanger 3 integrates the throttling function and the heat exchange function, which can shorten the pipeline or eliminate part of the pipeline, thereby reducing the space occupied by the heat exchange module 10.

[0048] Optionally, the flow divider 1 is installed on the side plate B1 of the first heat exchanger 3. The groove of the first heat exchanger 3 can enable communication between the second heat exchanger 2 and the flow divider 1, so that the second heat exchanger 2 and the flow divider 1 can be close to each other, thereby shortening the pipeline or eliminating part of the pipeline, and thus reducing the space occupied by the heat exchange module 10.

[0049] In some possible embodiments, the heat exchange module 10 includes a third heat exchanger 4 for heat exchange between the refrigerant and the coolant. The third heat exchanger 4 is mounted and fixed to the first heat exchanger 3, and is in contact with and fixed to the side plate B1. (Refer to...) Figure 2 , 3 The third heat exchanger 4 includes multiple plates, each plate being approximately rectangular in shape. These plates are stacked along the thickness direction of the third heat exchanger 4. The plates include a middle plate S3. The third heat exchanger 4 includes a first part S1 and a second part S2 located on opposite sides of the middle plate S3 along its thickness direction. Optionally, the third heat exchanger 4 is a plate heat exchanger, and the plate stacking direction of the third heat exchanger 4 is parallel to or coincides with the plate stacking direction of the first heat exchanger 3.

[0050] The first part S1 has a tenth channel 41, an eleventh channel 42, a twelfth channel 43, a thirteenth channel 44, a fifth inter-plate channel (not shown in the figure), and a sixth inter-plate channel (not shown in the figure). The fifth inter-plate channel and the sixth inter-plate channel are isolated from each other in the third heat exchanger 4. The tenth channel 41 and the eleventh channel 42 are respectively connected to the fifth inter-plate channel, and the twelfth channel 43 and the thirteenth channel 44 are respectively connected to the sixth inter-plate channel.

[0051] The second part S2 has fourteenth channel 45, fifteenth channel 46, sixteenth channel 47, seventeenth channel 48, eighteenth channel 49, seventh inter-plate channel (not shown in the figure) and eighth inter-plate channel (not shown in the figure). Eighteenth channel 49, seventh inter-plate channel and eighth inter-plate channel are isolated from each other in the third heat exchanger 4. Fourteenth channel 45 and fifteenth channel 46 are connected to the seventh inter-plate channel respectively, and sixteenth channel 47 and seventeenth channel 48 are connected to the eighth inter-plate channel respectively.

[0052] Eleventh channel 42 connects to eighteenth channel 49, twelfth channel 43 connects to sixteenth channel 47, and thirteenth channel 44 connects to seventeenth channel 48. Specifically, the intermediate plate S3 has a first through groove S31, a second through groove S32, and a third through groove S33. The three through grooves penetrate the intermediate plate S3 along its thickness direction and are isolated from each other on the intermediate plate S3. Eleventh channel 42, eighteenth channel 49, and first through groove S31 are correspondingly arranged in the thickness direction of the third heat exchanger 4, and first through groove S31 connects eleventh channel 42 and eighteenth channel 49. Twelfth channel 43, sixteenth channel 47, and second through groove S32 are correspondingly arranged in the thickness direction of the third heat exchanger 4, and second through groove S32 connects twelfth channel 43 and sixteenth channel 47. Thirteenth channel 44, seventeenth channel 48, and third through channel S33 are correspondingly arranged in the thickness direction of the third heat exchanger 4, and the third through channel S33 connects thirteenth channel 44 and seventeenth channel 48. Tenth channel 41 and fifteenth channel 46 are correspondingly arranged in the thickness direction of the third heat exchanger 4, and intermediate plate S3 isolates tenth channel 41 and fifteenth channel 46.

[0053] All nine channels of the third heat exchanger 4 extend along the thickness direction of the third heat exchanger 4. One side opening of the tenth channel 41, the twelfth channel 43, and the thirteenth channel 44 is located on the side of the first part S1 away from the second part S2. One side opening of the fourteenth channel 45, the fifteenth channel 46, and the eighteenth channel 49 is located on the side of the second part S2 away from the first part S1. The other side opening of the tenth channel 41, the fourteenth channel 45, and the fifteenth channel 46 is blocked by the intermediate plate S3. The other side opening of the eleventh channel 42 is blocked by the plate of the first part S1 that is furthest from the second part S2. The other side opening of the sixteenth channel 47 and the seventeenth channel 48 is blocked by the plate of the second part S2 that is furthest from the first part S1.

[0054] In some embodiments, refer to Figures 2 to 5The first heat exchanger 3 has a third through groove T3, which connects the first interface 11 and the fifteenth channel 46. The third through groove T3 is isolated from other grooves within the first heat exchanger 3. Along the length of the first heat exchanger 3, the flow divider 1 is located beside the third heat exchanger 4. The third through groove T3 connects the inner cavity of the flow divider 1 to the fifteenth channel 46 of the third heat exchanger 4, allowing the first heat exchanger 3, the third heat exchanger 4, and the flow divider 1 to be close to each other, reducing the space occupied by the heat exchange module 10.

[0055] In the third heat exchanger 4 of this embodiment, the refrigerant in the fifth inter-plate channel exchanges heat with the coolant in the sixth inter-plate channel, and the refrigerant in the seventh inter-plate channel exchanges heat with the coolant in the eighth inter-plate channel. The same refrigerant flows through the fifth inter-plate channel first and then through the seventh inter-plate channel, so that the third heat exchanger 4 simultaneously functions as a condenser and a subcooler. By designing the plates of the third heat exchanger 4, the third heat exchanger 4 integrates the functions of a condenser and a subcooler, and the refrigerant outlet of the condenser and the refrigerant inlet of the subcooler are located on the same side of the third heat exchanger 4, optimizing the space occupied by the supporting components of the third heat exchanger 4 and facilitating integration.

[0056] In some possible embodiments, the heat exchange module 10 includes a liquid receiver 5 for filtering and drying the refrigerant. The liquid receiver 5 is mounted and fixed to the first heat exchanger 3 and is in contact with and fixed to the side plate B1. The liquid receiver 5 has a first opening 51 and a second opening 52, which are respectively connected to the inner cavity of the liquid receiver 5. One of the first opening 51 and the second opening 52 is the inlet of the liquid receiver 5, and the other is the outlet of the liquid receiver 5.

[0057] In some embodiments, refer to Figures 2 to 6 The first heat exchanger 3 has a fourth channel T4, which connects the first opening 51 and the eighteenth channel 49. The fourth channel T4 is isolated from other grooves in the first heat exchanger 3.

[0058] In some embodiments, refer to Figures 2 to 5 The first heat exchanger 3 has a fifth through groove T5, which connects the second opening 52 and the fourteenth channel 45. The fifth through groove T5 is isolated from other grooves within the first heat exchanger 3.

[0059] In this embodiment, along the length of the first heat exchanger 3, the liquid reservoir 5 is located beside the third heat exchanger 4. The inner cavity of the liquid reservoir 5 is connected to the eighteenth channel 49 of the third heat exchanger 4 through the fourth channel T4, and / or the inner cavity of the liquid reservoir 5 is connected to the fourteenth channel 45 of the third heat exchanger 4 through the fifth channel T5. This allows the first heat exchanger 3, the third heat exchanger 4 and the liquid reservoir 5 to be close to each other, reducing the space occupied by the heat exchange module 10.

[0060] In this embodiment, the flow divider 1 and the liquid reservoir 5 are both located on the side of the width direction of the third heat exchanger 4, and on the side of the width direction of the second heat exchanger 2. The length direction of the second heat exchanger 2, the length direction of the third heat exchanger 4, and the width direction of the first heat exchanger 3 are parallel or coincident. The flow divider 1 and the liquid reservoir 5 are arranged in a straight line along the width direction of the first heat exchanger 3. Through a more reasonable arrangement, several components can be close to each other, thereby reducing the space occupied by the heat exchange module 10.

[0061] The third heat exchanger 4 includes a fifth flow channel C1 and a sixth flow channel C2 that are isolated from each other. In this embodiment, the fifth flow channel C1 includes a first sub-flow channel C11 and a second sub-flow channel C12. The first sub-flow channel C11 includes a tenth channel 41, an eleventh channel 42, an eighteenth channel 49 and a fifth inter-plate channel. The second sub-flow channel C12 includes a fourteenth channel 45, a fifteenth channel 46 and a seventh inter-plate channel. The sixth flow channel C2 includes a twelfth channel 43, a thirteenth channel 44, a sixteenth channel 47, a seventeenth channel 48, a sixth inter-plate channel and an eighth inter-plate channel.

[0062] If the heat exchange module 10 is equipped with a liquid reservoir 5 and the liquid reservoir 5 is located next to the third heat exchanger 4, the fourth channel T4 connects the outlet of the first sub-channel C11 and the first opening 51, the fifth channel T5 connects the inlet of the second sub-channel C12 and the second opening 52, and the outlet of the second sub-channel C12 connects to the first interface 11.

[0063] If the heat exchange module 10 does not have a liquid reservoir 5, it is not necessary to set the fourth channel T4, the fifth channel T5 and the eighteenth channel 49. The eleventh channel 42 is connected to the fourteenth channel 45, and the outlet of the second sub-channel C12 is connected to the first interface 11.

[0064] In some other possible embodiments, the third heat exchanger 4 does not have a second part S2. Correspondingly, the third heat exchanger 4 does not have the fourteenth channel 45, the fifteenth channel 46, the sixteenth channel 47, the seventeenth channel 48, the eighteenth channel 49, the seventh inter-plate channel, and the eighth inter-plate channel. In this embodiment, the eleventh channel 42 is connected to the first opening 51 of the liquid reservoir 5 through the fourth through groove T4, and the second opening 52 of the liquid reservoir 5 is connected to the first interface 11.

[0065] In some other possible embodiments, the liquid reservoir 5 is located on the side of the first part S1 away from the second part S2, and the structures of the first heat exchanger 3 and the third heat exchanger 4 need to be adjusted accordingly so that the connection can be realized.

[0066] In some possible embodiments, the heat exchange module 10 includes a throttling valve 6 for throttling and cooling the refrigerant. The throttling valve 6 is fixedly mounted to the first heat exchanger 3 and contacts and is fixed to the side plate B1. The throttling valve 6 has a third opening 61 and a fourth opening 62, which are respectively connected to the inner cavity of the throttling valve 6. One of the third opening 61 and the fourth opening 62 is the inlet of the throttling valve 6, and the other is the outlet of the throttling valve 6. The third opening 61 is connected to the third channel 33.

[0067] Along the width direction of the first heat exchanger 3, the throttle valve 6 is located on the side of the length direction of the second heat exchanger 2. The relatively reasonable layout makes reasonable use of the space on the upper side of the side plate B1, allowing the components to be close to each other.

[0068] In some possible embodiments, the heat exchange module 10 includes a fourth heat exchanger 7 for heat exchange between the refrigerant and the coolant. The fourth heat exchanger 7 is mounted and fixed to the first heat exchanger 3, and is in contact with and fixed to the side plate B1. (Refer to...) Figures 2 to 9 The fourth heat exchanger 7 includes multiple plates, each plate being approximately rectangular in shape, and the multiple plates are stacked along the thickness direction of the fourth heat exchanger 7. Optionally, the fourth heat exchanger 7 is a plate heat exchanger, and the plate stacking direction of the fourth heat exchanger 7 is parallel to or coincides with the plate stacking direction of the first heat exchanger 3.

[0069] The fourth heat exchanger 7 has a nineteenth channel 71, a twentieth channel 72, a twenty-first channel 73, a twenty-second channel 74, a ninth inter-plate channel (not shown in the figure), and a tenth inter-plate channel (not shown in the figure). The ninth and tenth inter-plate channels are isolated from each other within the fourth heat exchanger 7. The nineteenth channel 71 and the twentieth channel 72 are respectively connected to the ninth inter-plate channel, and the twenty-first channel 73 and the twenty-second channel 74 are respectively connected to the tenth inter-plate channel. The twentieth channel 72 is connected to the fourth channel 34. The fourth heat exchanger 7 includes a seventh flow channel D1 and an eighth flow channel D2 that are isolated from each other. The seventh flow channel D1 includes the nineteenth channel 71, the twentieth channel 72, and the ninth inter-plate channel, and the eighth flow channel D2 includes the twenty-first channel 73, the twenty-second channel 74, and the tenth inter-plate channel.

[0070] Nineteenth channel 71, twentieth channel 72, twenty-first channel 73, and twenty-second channel 74 all extend along the thickness direction of the fourth heat exchanger 7. In the fourth heat exchanger 7, nineteenth channel 71 and twentieth channel 72 are blind holes, while twenty-first channel 73 and twenty-second channel 74 are through holes. In the heat exchange module 10, nineteenth channel 71, twentieth channel 72, twenty-first channel 73, and twenty-second channel 74 are all blind holes. Specifically, on the side of the fourth heat exchanger 7 closest to the first heat exchanger 3, the nineteenth channel 71, the twentieth channel 72, the twenty-first channel 73, and the twenty-second channel 74 all form openings, and the openings of the twenty-first channel 73 and the twenty-second channel 74 are blocked by the side plate B1; on the side of the fourth heat exchanger 7 furthest from the first heat exchanger 3, the twenty-first channel 73 and the twenty-second channel 74 form openings, and the nineteenth channel 71 and the twenty-first channel 72 are blocked by the outermost plate in the thickness direction of the fourth heat exchanger 7.

[0071] In this embodiment, the throttle valve 6 is located beside the fourth heat exchanger 7. The first heat exchanger 3 has a sixth through groove T6, which connects the fourth opening 62 and the nineteenth channel 71. The sixth through groove T6 is isolated from other grooves within the first heat exchanger 3. Based on the positional distribution of the fourth heat exchanger 7 and the throttle valve 6, the sixth through groove T6 extends approximately along the length of the first heat exchanger 3.

[0072] In this application, all components are installed on the side plate B1 of the first heat exchanger 3, making reasonable use of the space on the upper side of the side plate B1. The internal cavities of each component are connected through the grooves of the first heat exchanger 3, allowing the components to be close to each other, reducing the space occupied by the heat exchange module 10, and facilitating integration. On the other hand, all the outward-facing interfaces of the components are located on the same side, which facilitates the connection of external pipelines and also facilitates integration.

[0073] Taking the heat exchange module 10, which includes the aforementioned second heat exchanger 2, first heat exchanger 3, third heat exchanger 4, fourth heat exchanger 7, flow divider 1, throttle valve 6, and reservoir 5, as an example, the second heat exchanger 2, third heat exchanger 4, fourth heat exchanger 7, flow divider 1, throttle valve 6, and reservoir 5 are all installed on side plate B1 and located on the same side of the thickness direction of the first heat exchanger 3. The second heat exchanger 2, flow divider 1, throttle valve 6, and reservoir 5 are all located between the third heat exchanger 4 and the fourth heat exchanger 7. The flow divider 1 and reservoir 5 are arranged along the width direction of the first heat exchanger 3, the second heat exchanger 2 and throttle valve 6 are arranged along the width direction of the first heat exchanger 3, and the flow divider 1 is located between the second heat exchanger 2 and the third heat exchanger 4. Along the length of the first heat exchanger 3, the size of the second heat exchanger 2 is larger than the size of the throttle valve 6. The fifth channel 35 is placed between the liquid reservoir 5 and the throttle valve 6, utilizing the size difference to achieve rational space utilization and make the components more compact. The width direction of the first heat exchanger 3, the length direction of the second heat exchanger 2, the length direction of the third heat exchanger 4, and the width direction of the fourth heat exchanger 7 are approximately parallel. The thickness direction of the first heat exchanger 3, the thickness direction of the second heat exchanger 2, the thickness direction of the third heat exchanger 4, and the thickness direction of the fourth heat exchanger 7 are also approximately parallel. The length direction dimension of the third heat exchanger 4, the width direction dimension of the fourth heat exchanger 7, and the width direction dimension of the first heat exchanger 3 are approximately the same.

[0074] Based on the structure of the heat exchange module 10 described above, referring to Figures 1 to 9 When the heat exchange module 10 is in operation, the refrigerant enters the first part S1 from the tenth channel 41, then flows into the eleventh channel 42 through multiple fifth inter-plate channels, then enters the eighteenth channel 49 through the first through groove S31, and then flows out of the second part S2 from the eighteenth channel 49; the refrigerant flowing out of the eighteenth channel 49 enters the inner cavity of the liquid receiver 5 through the fourth through groove T4, is filtered and dried, and then enters the second part S2 from the fourteenth channel 45 through the fifth through groove T5; then flows into the fifteenth channel 46 through multiple seventh inter-plate channels, and then flows out of the second part S2 again from the fifteenth channel 46; the refrigerant flowing out of the fifteenth channel 46 flows into the first interface 11 through the third through groove T3.

[0075] When the diversion component 1 is in the state of connection between the first interface 11 and the fourth interface 14, the refrigerant enters the first channel 31 from the fourth interface 14 and flows in the first inter-plate channel of the first layer. A portion of the refrigerant enters the second inter-plate channel of the second layer from the second channel 32 and flows in. Then all the refrigerant flows out of the first heat exchanger 3 from the third channel 33. The refrigerant flowing out of the first heat exchanger 3 enters the inner cavity of the throttle valve 6 through the third opening 61. After being throttled and cooled by the throttle valve 6, it flows out of the throttle valve 6 from the fourth opening 62. The refrigerant enters the nineteenth channel 71 through the sixth channel T6 and then flows into the nineteenth channel 71 through multiple ninth inter-plate channels. The refrigerant flows out of the nineteenth channel 71 and enters the fourth channel 34. Then it flows to the fifth channel 35 through multiple second inter-plate channels and then flows out of the heat exchange module 10 from the fifth channel 35.

[0076] When the flow divider 1 is in the state where the first interface 11 is connected to the third interface 13 and the second interface 12, the refrigerant flowing out of the flow divider 1 is divided into two paths: one path of refrigerant enters the eighth channel 23 from the third interface 13 through the second through slot T2, flows into the ninth channel 24 along multiple fourth inter-plate channels, and then flows into the first heat exchanger 3 from the second channel 32; the other path of refrigerant enters the first through slot T1 from the second interface 12, is throttled and cooled by the first through slot T1, enters the sixth channel 21, then flows into the seventh channel 22 along multiple third inter-plate channels, and finally flows out of the heat exchange module 10 from the seventh channel 22. The refrigerant in the second channel 32 flows into the third channel 33 along multiple first inter-plate channels, and then enters the inner cavity of the throttling valve 6 through the third opening 61. The subsequent flow path is similar to the flow path when the flow divider 1 is in the state where the first interface 11 is connected to the fourth interface 14, and will not be described again here.

[0077] In the third heat exchanger 4, the coolant enters the first part S1 through the twelfth channel 43. Part of the coolant in the twelfth channel 43 flows into the thirteenth channel 44 through multiple sixth interplate channels, and the other part enters the sixteenth channel 47 through the second channel S32. The coolant in the sixteenth channel 47 flows into the seventeenth channel 48 through multiple eighth interplate channels. The coolant flows from the seventeenth channel 48 into the thirteenth channel 44 of the first part S1 through the third channel S33. The coolant flows out of the third heat exchanger 4 through the thirteenth channel 44.

[0078] In the fourth heat exchanger 7, the coolant enters the fourth heat exchanger 7 through the twenty-first channel 73, flows into the twenty-second channel 74 through multiple eighth interplate channels, and then flows out of the fourth heat exchanger 7 through the twenty-second channel 74.

[0079] In this embodiment, the coolant flowing in the third heat exchanger 4 is isolated from the coolant flowing in the fourth heat exchanger 7. The refrigerants flowing in the second heat exchanger 2, the first heat exchanger 3, the third heat exchanger 4 and the fourth heat exchanger 7 are refrigerants from different sections of the same circuit. When the heat exchange module 10 is in use, the refrigerant flows in from the tenth channel 41 and flows out from the fifth channel 35.

[0080] According to one embodiment of the thermal management system of this application, refer to Figure 12 and 13 The thermal management system is primarily used to manage cooling and heating to meet the overall cooling and heating needs of the vehicle, such as the cooling / heating requirements of the cabin, the cooling requirements of the motor, and the heating / cooling requirements of the battery. A portion of the cooling / heating is supplied through methods such as operating the refrigerant circulation loop, starting the heater, and utilizing the cooling capacity carried by the coolant itself; another portion of the heating is obtained by methods such as recovering cooling / heat from other parts of the vehicle. Integrating some components of the thermal management system forms the heat exchange module 10.

[0081] In this application, the thermal management system includes a compressor 9 and a heat exchange module 10 of any of the above embodiments. The number of components of the heat exchange module 10 can be adjusted according to actual needs. For ease of description, this embodiment is described with the heat exchange module 10 including a second heat exchanger 2, a first heat exchanger 3, a third heat exchanger 4, a fourth heat exchanger 7, a flow divider 1, a throttle valve 6, and a liquid receiver 5 as an example.

[0082] The various components of the thermal management system are connected by piping to form two main systems: the refrigerant system and the coolant system. These two systems are isolated and not interconnected. Refrigerant flows through the refrigerant system, while coolant flows through the coolant system. The refrigerant can be R134A, carbon dioxide, or other heat exchange media, and the coolant can be a mixture of ethanol and water or other cooling media.

[0083] The second heat exchanger 2, the first heat exchanger 3, the third heat exchanger 4, and the fourth heat exchanger 7 are all plate heat exchangers. The third heat exchanger 4 and the fourth heat exchanger 7 are used for heat exchange between the refrigerant and the coolant, while the first heat exchanger 3 and the second heat exchanger 2 are used for heat exchange between two points of refrigerant in the same circuit. Specifically, the third flow channel A1, the fourth flow channel A2, the first flow channel B5, the second flow channel B6, the fifth flow channel C1, and the seventh flow channel D1 are connected to the refrigerant system, and the sixth flow channel C2 and the eighth flow channel D2 are connected to the coolant system.

[0084] In this embodiment, the thermal management system includes a compressor 9 and a heat exchange module 10. The heat exchange module 10 includes a second heat exchanger 2, a first heat exchanger 3, a third heat exchanger 4, a fourth heat exchanger 7, a flow divider 1, a throttling valve 6, and a liquid receiver 5. The outlet of the compressor 9 is connected to the tenth channel 41 of the heat exchange module 10, the gas inlet of the compressor 9 is connected to the fifth channel 35 of the heat exchange module 10, and the gas injection and enthalpy-increasing inlet of the compressor 9 is connected to the seventh channel 22 of the heat exchange module 10. The first through-slot T1 and its peripheral inner wall in the first heat exchanger 3 serve as a throttling component 8. The throttling component 8 is an expansion tube structure, which achieves throttling through the internal flow channel of the first heat exchanger 3, saving space and improving integration.

[0085] The thermal management system of this application is a full-loop system. Once the working state of the flow divider 1 is determined, the flow path of the refrigerant remains unchanged under any operating condition.

[0086] Specifically, when the flow divider 1 is connected to the first interface 11 and the fourth interface 14, the flow path is as follows: compressor 9 outlet, first sub-channel C11 of the third heat exchanger 4, liquid receiver 5, second sub-channel C12 of the third heat exchanger 4, flow divider 1, first channel B5 of the first heat exchanger 3, throttle valve 6, seventh channel D1 of the fourth heat exchanger 7, second channel B6 of the first heat exchanger 3, and compressor 9 inlet are connected sequentially. When the thermal management system is in operation, the refrigerant flowing out of compressor 9 flows into heat exchange module 10 through tenth channel 41, then flows out of heat exchange module 10 through fifth channel 35, and finally flows to the gas inlet of compressor 9. The flow path of refrigerant in heat exchange module 10 is described above and will not be repeated here.

[0087] When the flow divider 1 is connected to the first interface 11, the second interface 12, and the third interface 13, one path is the sequential connection of the compressor 9 outlet, the first sub-flow channel C11 of the third heat exchanger 4, the liquid receiver 5, the second sub-flow channel C12 of the third heat exchanger 4, the flow divider 1, the fourth flow channel A2 of the second heat exchanger 2, the first flow channel B5 of the first heat exchanger 3, the throttle valve 6, the seventh flow channel D1 of the fourth heat exchanger 7, the second flow channel B6 of the first heat exchanger 3, and the compressor 9 inlet; the other path is the sequential connection of the compressor 9 outlet, the first sub-flow channel C11 of the third heat exchanger 4, the liquid receiver 5, the second sub-flow channel C12 of the third heat exchanger 4, the flow divider 1, the third flow channel A1 of the second heat exchanger 2, and the compressor 9 gas replenishment and enthalpy increase inlet. When the thermal management system is in operation, the refrigerant flowing out of the compressor 9 flows into the heat exchange module 10 through the tenth channel 41, flows out of the heat exchange module 10 through the fifth channel 35, then flows to the gas inlet of the compressor 9, flows out of the heat exchange module 10 through the seventh channel 22, and then flows to the gas replenishment and enthalpy increase inlet of the compressor 9. The flow path of the refrigerant in the heat exchange module 10 is described above and will not be repeated here.

[0088] In this embodiment, the compressor 9 has a gas injection enthalpy-increasing inlet and a gas inlet. The gas injection enthalpy-increasing inlet is connected to the seventh channel 22, and the gas inlet is connected to the fifth channel 35. The second heat exchanger 2 serves as a gas injection enthalpy-increasing heat exchanger to achieve heat exchange between the higher-temperature refrigerant and the lower-temperature refrigerant. The first heat exchanger 3 serves as an intermediate heat exchanger to achieve heat exchange between the higher-temperature refrigerant and the lower-temperature refrigerant. The third heat exchanger 4 serves as a water-cooled condenser to heat the coolant. The fourth heat exchanger 7 serves as a water-cooled evaporator to absorb heat from the coolant. The coolant system can be designed according to requirements, and this application does not limit it.

[0089] The thermal management system of this application is a full-loop system, which can reduce the refrigerant charge, reduce the leakage rate, and facilitate the integration of the refrigerant system. The use of a highly integrated heat exchange module 10 results in a smaller footprint for the thermal management system.

[0090] In this application, the "connection" between two components can be a direct connection or a connection via a pipeline. The two components may only have a pipeline between them, or they may have a valve or other component in addition to a pipeline. Similarly, the "connection" between two components in this application can be a direct connection or a connection via a pipeline. The two components may only have a pipeline connection, or they may have a valve or other component in addition to a pipeline connection.

[0091] The above description is merely a preferred embodiment of this application and is not intended to limit this application in any way. Although this application has disclosed the preferred embodiment as above, it is not intended to limit this application. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the technical solution of this application. Any simple modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of this application without departing from the content of the technical solution of this application shall still fall within the scope of the technical solution of this application.

Claims

1. A heat exchange module, characterized in that, include: A first heat exchanger includes a plurality of plates stacked alternately along the thickness direction of the first heat exchanger, the plurality of plates including side plates, the side plates being the outermost plates in the thickness direction of the first heat exchanger. The first heat exchanger has a first through slot, a first flow channel and a second flow channel. The first through slot, the first flow channel and the second flow channel are isolated from each other in the first heat exchanger. The first through slot is located in at least one of the side plate and the plate closest to the side plate. The first through slot has a throttling function. The heat exchange module includes a second heat exchanger, which has a third flow channel and a fourth flow channel, and the third flow channel and the fourth flow channel are isolated from each other within the second heat exchanger; The first channel is connected to the third flow channel, and the fourth flow channel is connected to the first flow channel.

2. A heat exchange module as described in claim 1, characterized in that, The first through groove is located on the plate closest to the side plate, and the opening of the first through groove faces the side plate; Alternatively, the first through groove is provided on the side plate, with the opening of the first through groove facing the plate closest to the side plate; Alternatively, a portion of the first through groove is located on the side plate, and another portion is located on the plate closest to the side plate. The opening of the first through groove located on the side plate faces the plate closest to the side plate, and the opening of the first through groove located on the plate closest to the side plate faces the side plate.

3. A heat exchange module as described in claim 1, characterized in that, The second heat exchanger includes a plurality of plates that are alternately stacked along the thickness direction of the second heat exchanger. The stacking direction of the plurality of plates of the second heat exchanger is parallel to or coincides with the stacking direction of the plurality of plates of the first heat exchanger. The second heat exchanger is fixed to the side plate. The first flow channel, the second flow channel, the third flow channel, and the fourth flow channel are all used for the flow of refrigerant.

4. A heat exchange module as described in claim 1, characterized in that, The heat exchange module includes a flow splitting component, which is mounted on the side plate and located on the side of the side plate away from other plates; The diversion component has a first interface, a second interface, and a third interface. The first interface can communicate with both the second interface and the third interface simultaneously. One end of the extension direction of the first through groove is connected to the second interface, and the other end of the extension direction of the first through groove is connected to the third flow channel. The third interface is connected to the fourth flow channel. The first through-slot is a narrow slit, and the hydraulic radius at the first through-slot is smaller than the hydraulic radius at the second interface.

5. A heat exchange module as described in claim 4, characterized in that, The shunt component also has a fourth interface; The first interface is simultaneously connected to the second interface and the third interface, and the fourth flow channel is connected to the first flow channel; or, the first interface is connected to the fourth interface, and the fourth interface is connected to the first flow channel.

6. A heat exchange module as described in claim 1, characterized in that, The heat exchange module includes a third heat exchanger, which is installed on the side plate and located on the side of the side plate away from other plates. The third heat exchanger is located next to the second heat exchanger. The third heat exchanger has a fifth flow channel and a sixth flow channel that are isolated from each other. The fifth flow channel is connected to the first flow channel, or the fifth flow channel is connected to both the first through channel and the fourth flow channel.

7. A heat exchange module as described in claim 6, characterized in that, The heat exchange module includes a liquid reservoir, which has a first opening and a second opening, and the first opening and the second opening are respectively connected to the inner cavity of the liquid reservoir. The first opening communicates with the fifth flow channel, and the second opening communicates with the first flow channel; or, the second opening communicates with both the first through-slot and the fourth flow channel; or... The fifth flow channel includes a first sub-flow channel and a second sub-flow channel. The first sub-flow channel, the second sub-flow channel and the sixth flow channel are isolated from each other in the third heat exchanger. The first opening is connected to the first sub-flow channel, the second opening is connected to one end of the second sub-flow channel, and the other end of the second sub-flow channel is connected to the first flow channel. Alternatively, the other end of the second sub-flow channel is simultaneously connected to the first through channel and the fourth flow channel.

8. A heat exchange module as described in any one of claims 1 to 7, characterized in that, The heat exchange module includes a throttling valve and a fourth heat exchanger, both of which are mounted on the side plate and located on the side of the side plate away from other plates. The fourth heat exchanger has a seventh flow channel and an eighth flow channel that are isolated from each other; the throttling valve includes a third opening and a fourth opening, the third opening and the fourth opening are respectively connected to the inner cavity of the throttling valve, the throttling valve has a throttling state, the third opening is connected to the first flow channel, the fourth opening is connected to one end of the seventh flow channel, and the other end of the seventh flow channel is connected to the second flow channel.

9. A thermal management system, characterized in that, It includes a compressor and a heat exchange module as described in any one of claims 1 to 8, wherein the outlet of the compressor is connected to the inlet of the first through slot, and the outlet of the first through slot is connected to the gas replenishment and enthalpy enhancement inlet of the compressor.

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