Coolant distribution assembly, thermal management module, and vehicle thermal management system

Abstract

The present application relates to a coolant distribution assembly, a thermal management module and a vehicle thermal management system. The coolant distribution assembly provided by the present application is easy to assemble because the mounting opening and the passage opening of the distribution plate body are respectively oriented to two sides in the thickness direction of the distribution plate body. The thermal management module provided by the present application comprises the coolant distribution assembly. The vehicle thermal management system provided by the present application comprises the thermal management module.

Description

Technical Field

[0001] This invention relates to a coolant distribution assembly, a thermal management module, and a vehicle thermal management system. Background Technology

[0002] As vehicles move towards electrification, their thermal management systems are becoming increasingly important. These systems not only manage the thermal environment of the passenger compartment but also the batteries, motors, and other modules. This necessitates a large number of refrigerant and coolant lines connecting these components, resulting in a complex and bulky thermal management system.

[0003] Existing technology includes a thermal management module that uses highly customized components to reduce the number of refrigerant and coolant lines, thereby reducing the size of the thermal management system. The thermal management module includes a coolant distribution assembly. However, the coolant distribution assembly in the prior art suffers from high assembly difficulty. Summary of the Invention

[0004] The purpose of this invention is to provide a coolant distribution assembly that is easy to assemble.

[0005] Another objective of this invention is to provide a thermal management module, including the aforementioned coolant distribution component.

[0006] Another objective of this invention is to provide a vehicle thermal management system, including the aforementioned thermal management module.

[0007] A coolant distribution assembly for achieving a specific purpose includes a distribution plate body, a cover, and a coolant distribution unit; the distribution plate body has a mounting cavity, a channel cavity, and a through hole; the through hole connects the mounting cavity and the channel cavity;

[0008] The mounting cavity has a mounting opening, and the channel cavity has a channel opening; the mounting opening and the channel opening are respectively oriented towards both sides in the thickness direction of the distribution plate body;

[0009] The coolant distribution unit is installed in the mounting cavity through the mounting opening; the cover covers the channel opening.

[0010] In one embodiment, the cover has an interface portion; the interface portion communicates with the channel cavity.

[0011] In one embodiment, the mounting cavity has a first bottom wall and a first side wall; along the thickness direction of the distribution plate body, one end of the first side wall is connected to the first bottom wall, and the other end of the first side wall defines the mounting opening;

[0012] The channel cavity has a second bottom wall and a second side wall; along the thickness direction of the distribution plate body, one end of the second side wall is connected to the second bottom wall, and the other end of the second side wall defines the channel opening;

[0013] Within the mounting cavity, the edge of the through hole is formed on the first sidewall and / or the first bottom wall; within the channel cavity, the edge of the through hole is formed on the second sidewall and / or the second bottom wall.

[0014] In one embodiment, the mounting cavity has a first depth defined by the mounting opening and the first bottom wall in the thickness direction; the channel cavity has a second depth defined by the mounting opening and the second bottom wall in the thickness direction.

[0015] The first depth and the second depth at least partially overlap in the thickness direction to define an overlap area; at least a portion of the edge of the through hole is located in the overlap area.

[0016] In one embodiment, the edge of the through hole includes a first edge and a second edge located within the channel cavity; the first edge is formed on the second bottom wall, and the second edge is formed on the second side wall.

[0017] In one embodiment, the edge of the through hole includes a third edge and a fourth edge located within the mounting cavity; the third edge is formed on the first bottom wall, and the fourth edge is formed on the first side wall.

[0018] In one embodiment, the coolant distribution unit includes a coolant pump, and the mounting cavity includes a pump mounting cavity;

[0019] The coolant pump is installed in the pump mounting cavity; the coolant pump is used to draw in and discharge coolant into the pump mounting cavity.

[0020] In one embodiment, the through hole includes an upstream through hole and a downstream through hole, and the channel cavity includes an upstream channel cavity and a downstream channel cavity; the pump mounting cavity communicates with the upstream channel cavity through the upstream through hole; the pump mounting cavity communicates with the downstream channel cavity through the downstream through hole.

[0021] The pump mounting cavity is configured to draw in coolant from the upstream channel cavity through the upstream through-hole and discharge coolant to the downstream channel cavity through the downstream through-hole.

[0022] In one embodiment, the first bottom wall of the pump mounting cavity is recessed to form a vortex flow channel; wherein the vortex flow channel gradually widens in the direction pointing to the downstream through hole.

[0023] In one embodiment, the pump mounting cavity includes a first pump mounting cavity and a second pump mounting cavity; the coolant pump includes a first coolant pump mounted in the first pump mounting cavity and a second coolant pump mounted in the second pump mounting cavity; the upstream through hole includes a first upstream through hole and a second upstream through hole; the downstream through hole includes a first downstream through hole and a second downstream through hole; the downstream channel cavity includes a first downstream channel cavity and a second downstream channel cavity;

[0024] The first pump mounting cavity is configured to draw in coolant from the upstream channel cavity through the first upstream through-hole and discharge coolant to the first downstream channel cavity through the first downstream through-hole; the second pump mounting cavity is configured to draw in coolant from the upstream channel cavity through the second upstream through-hole and discharge coolant to the second downstream channel cavity through the second downstream through-hole.

[0025] In one embodiment, the interface portion of the cover includes a first interface portion and a second interface portion; the first interface portion and the second interface portion are respectively connected to the upstream channel cavity, wherein the first interface portion and the first upstream through hole are arranged along the same center line, and the second interface portion and the second upstream through hole are arranged along the same center line.

[0026] In one embodiment, the coolant distribution unit further includes a coolant valve; the mounting cavity further includes a valve mounting cavity; the coolant valve is mounted in the valve mounting cavity;

[0027] Wherein, the coolant valve includes a first coolant valve; the valve mounting cavity includes a first valve mounting cavity; the first coolant valve is mounted in the first valve mounting cavity;

[0028] The through hole includes a first intermediate through hole; the upstream channel cavity is connected to the first valve mounting cavity through the first intermediate through hole;

[0029] The first intermediate through hole, the first upstream through hole, and the second upstream through hole are distributed along the extension direction of the upstream channel cavity; wherein the second upstream through hole is located between the first intermediate through hole and the first upstream through hole.

[0030] The thermal management module for achieving its purpose includes a first heat exchanger, a second heat exchanger, and a coolant distribution assembly;

[0031] The first heat exchanger has a first coolant opening and a second coolant opening;

[0032] The second heat exchanger has a third coolant opening and a fourth coolant opening;

[0033] The coolant distribution assembly has a first distribution port, a second distribution port, a third distribution port, a first intermediate through hole, an upstream channel cavity, and a first downstream channel cavity;

[0034] The first coolant opening is connected to the first distribution port; the second coolant opening is connected to the second distribution port, and is connected to the upstream channel cavity through the second distribution port and the first intermediate through hole;

[0035] The third coolant opening is connected to the third distribution port and is also connected to the first downstream channel cavity through the third distribution port.

[0036] A vehicle thermal management system for achieving a purpose includes a heater core and a thermal management module; the thermal management module includes a coolant distribution assembly; the outlet of the heater core is connected to a first interface portion of the coolant distribution assembly, and is connected to an upstream channel cavity of the coolant distribution assembly through the first interface portion.

[0037] The positive and progressive effects of the present invention are as follows: the coolant distribution assembly provided by the present invention has the installation opening and channel opening of the distribution plate body facing the two sides of the thickness direction of the distribution plate body respectively, which allows the cover and the coolant distribution unit to be assembled with the distribution plate body on both sides of the distribution plate body respectively, thereby reducing the assembly difficulty and making the coolant distribution assembly easy to assemble. Attached Figure Description

[0038] The above and other features, properties and advantages of the present invention will become more apparent from the following description taken in conjunction with the accompanying drawings and embodiments, wherein:

[0039] Figure 1 This is a schematic diagram of the thermal management module;

[0040] Figure 2 A schematic diagram of the thermal management module after the bracket has been removed;

[0041] Figure 3 This is an exploded view of the thermal management module, without showing the support bracket;

[0042] Figure 4 This is a schematic diagram of the thermal management module, showing different brackets;

[0043] Figure 5A , 5B A schematic diagram of the support and coolant distribution assembly;

[0044] Figure 6A , 6B A schematic diagram of the support frame, coolant distribution assembly, first heat exchanger, second heat exchanger, and liquid receiver dryer;

[0045] Figure 7Top view of the support frame, coolant distribution assembly, first heat exchanger, and liquid receiver dryer;

[0046] Figure 8A A schematic diagram of the coolant distribution assembly;

[0047] Figure 8B This is a top view of the main body of the distribution panel;

[0048] Figure 9A This is a schematic diagram of the main body of the distribution plate, showing one side where the channel cavity is located;

[0049] Figure 9B This is a schematic diagram of the main body of the distribution plate, showing one side where the mounting cavity is located;

[0050] Figure 10A For the main body of the distribution plate along Figure 8B A schematic diagram after being cut open along the AA direction;

[0051] Figure 10B for Figure 10A A magnified view of a portion of the image;

[0052] Figure 11 This is a partial schematic diagram of the main body of the distribution plate, showing the first edge of the through hole;

[0053] Figure 12 This is a partial schematic diagram of the main body of the distribution plate, showing the third and fourth edges of the through hole;

[0054] Figure 13 This is a partial top view of the main body of the distribution plate, showing the third edge of the through hole;

[0055] Figure 14 A partial cross-sectional view of the main body of the distribution plate, showing the upstream channel cavity;

[0056] Figure 15A This is a schematic diagram of a refrigerant valve assembly;

[0057] Figure 15B This is a schematic diagram of the valve body;

[0058] Figure 16A For valve body along Figure 15B A schematic diagram after being cut open along the BB direction;

[0059] Figure 16B For valve body along Figure 15B Top view after being cut along the BB direction;

[0060] Figure 17A This is a schematic diagram of the valve body, showing the second valve body opening and the fourth valve body opening;

[0061] Figure 17BThis is a schematic diagram of a refrigerant valve assembly, showing the second valve body opening and the fourth valve body opening;

[0062] Figure 18 This is a schematic diagram of a vehicle thermal management system.

[0063] Figure 19 A schematic diagram of the first operating mode of the vehicle thermal management system;

[0064] Figure 20 A schematic diagram of the second operating mode of the vehicle thermal management system;

[0065] Figure 21 A schematic diagram of the third operating mode of the vehicle thermal management system;

[0066] Figure 22 This is a schematic diagram of the fourth operating mode of the vehicle thermal management system.

[0067] Figure 23 This is a schematic diagram of the fifth operating mode of the vehicle thermal management system.

[0068] Figure 24 This is a schematic diagram of the sixth operating mode of the vehicle thermal management system.

[0069] Figure 25 This is a schematic diagram of the seventh operating mode of the vehicle thermal management system.

[0070] Figure 26 This is a schematic diagram of the eighth operating mode of the vehicle thermal management system. Detailed Implementation

[0071] The following discloses various embodiments or examples of the subject matter technical solutions. To simplify the disclosure, specific examples of the elements and arrangements are described below. Of course, these are merely examples and are not intended to limit the scope of protection of the present invention. For example, the distribution of the first feature and the second feature as described later in the specification can include an embodiment in which the first and second features are distributed in a direct connection, or an embodiment in which an additional feature is formed between the first and second features, so that the first and second features are not directly connected. In addition, reference numerals and / or letters may be repeated in different examples in these contents. This repetition is for brevity and clarity and does not in itself indicate the relationship between the various embodiments and / or structures to be discussed. Furthermore, when the first element is described in a manner connected or combined with the second element, the description includes embodiments in which the first and second elements are directly connected or combined with each other, as well as embodiments in which one or more other intervening elements are added to indirectly connect or combine the first and second elements with each other.

[0072] It is important to note that Figures 1 to 26These are merely examples and are not drawn to scale, nor should they be construed as limiting the scope of protection of the present invention.

[0073] Vehicle thermal management systems not only need to manage the thermal environment of the cabin, but also the modules such as the battery and motor. To achieve this thermal management, the vehicle thermal management system includes a refrigerant circuit and a coolant circuit. In the refrigerant circuit, the refrigerant is driven by a compressor and flows through the objects requiring thermal management, such as the air conditioning module for the cabin environment. In the coolant circuit, the coolant is driven by a coolant pump and flows through the objects requiring thermal management, such as the battery and motor. Heat exchange occurs between the refrigerant in the refrigerant circuit and the coolant in the coolant circuit to bring the coolant to the desired temperature. This heat exchange is achieved through heat exchangers. To meet the requirements of modularity, the vehicle thermal management system integrates at least some components that make up the refrigerant circuit and / or coolant circuit into a single thermal management module.

[0074] Figure 18 The illustration shows a vehicle thermal management system 900 according to one embodiment of the present invention, including a battery 92, a motor 93, an evaporator 94, a coolant heating device 95, a compressor 96, a radiator 97, an external heat exchanger 98, an external intermediate heat exchanger 99, an external electronic expansion valve 991, an external shut-off valve 992, and a thermal management module 90. "External" refers to the area outside the thermal management module 90, as opposed to the area outside the thermal management module 90.

[0075] Figures 1 to 4 A thermal management module 90 according to an embodiment of the present invention is shown, including a first heat exchanger 1, a coolant distribution assembly 2, and a bracket 3. The first heat exchanger 1 has a first coolant opening 1a, a second coolant opening 1b, a first refrigerant opening 1c, and a second refrigerant opening 1d. The first coolant opening 1a and the second coolant opening 1b define a coolant passage penetrating the first heat exchanger 1, and the first refrigerant opening 1c and the second refrigerant opening 1d define a refrigerant passage penetrating the first heat exchanger 1, wherein, inside the first heat exchanger 1, coolant in the coolant passage exchanges heat with refrigerant in the refrigerant passage. In one operating mode of the vehicle thermal management system 900, the first heat exchanger 1 is an evaporator, that is, the refrigerant evaporates in the first heat exchanger 1 to absorb heat from the coolant, thereby lowering the temperature of the coolant leaving the first heat exchanger 1. The coolant distribution assembly 2 includes a distribution plate body 20; the distribution plate body 20 has a first distribution port 2a and a second distribution port 2b; the first coolant opening 1a is connected to and communicates with the first distribution port 2a, and the second coolant opening 1b is connected to and communicates with the second distribution port 2b.

[0076] More specifically, see reference Figure 3The thermal management module 90 also includes a first hose 41 and a second hose 42. The first coolant opening 1a is connected to the first distribution port 2a via the first hose 41; the second coolant opening 1b is connected to the second distribution port 2b via the second hose 42. The use of hose connections can reduce the transmission of vibrations from the distribution plate body 20 to the first heat exchanger 1.

[0077] In one operating mode of the vehicle thermal management system, coolant leaves the first heat exchanger 1 from the first coolant opening 1a and enters the distribution plate body 20 from the first distribution port 2a. Coolant leaves the distribution plate body 20 from the second distribution port 2b and enters the first heat exchanger 1 from the second coolant opening 1b.

[0078] The first heat exchanger 1 and the distribution plate body 20 are respectively mounted on the bracket 3, making the first heat exchanger 1 and the refrigerant distribution component 2 relatively independent, thereby making the thermal management module 90 highly compatible and with low maintenance costs.

[0079] like Figure 1 , 4 As shown in Figures 5A, 5B, 6A, 6B, and 7, the bracket 3 includes a back plate 30 and a connecting plate 31; the distribution plate body 20 is disposed opposite to the back plate 30; the connecting plate 31 is connected to both the back plate 30 and the distribution plate body 20. This design allows a space to be formed between the distribution plate body 20 and the back plate 30, which can be used to install other components of the thermal management module 90, such as the coolant distribution unit 22, including the coolant pump 221 and / or the coolant valve 222. This helps to make the thermal management module 90 compact. More specifically, the coolant pump 221 and the coolant valve 222 are mounted on the distribution plate body 20 and located on the side of the distribution plate body 20 facing the back plate 30.

[0080] like Figure 1 , 5A As shown in Figure 5B, the connecting plate 31 has a first plate portion 311; the first plate portion 311 is connected to the back plate 30 and the distribution plate body 20 respectively; wherein, the distribution plate body 20 is located inside the first plate portion 311. The connecting plate 31 also has a second plate portion 312; the second plate portion 312 forms an angle with the first plate portion 311; the second plate portion 312 is connected to the distribution plate body 20; wherein, the distribution plate body 20 is located inside the second plate portion 312. The inner side is the side relatively closer to the center of the thermal management module 90, and the outer side is the side relatively farther from the center of the thermal management module 90. This design allows the distribution plate body 20 to be located inside the connecting plate 31, contributing to a compact structure of the thermal management module 90; furthermore, the connection between the distribution plate body 20 and the first plate portion 311 and the second plate portion 312 respectively makes the connection between the distribution plate body 20 and the bracket 3 more secure.

[0081] like Figure 6A , 6B As shown, the first heat exchanger 1 is mounted on the second plate portion 312 and is located inside the side plate portion 312 and the top plate portion 311. The inner side is the side relatively close to the center of the thermal management module 90, and the outer side is the side relatively far from the center of the thermal management module 90. This design helps to make the thermal management module 90 structurally compact.

[0082] refer to Figure 1 , 2 As can be seen from points 3 and 4, at least a portion of the first heat exchanger 1 coincides with the distribution plate body 20 in the thickness direction T. This design makes the thermal management module 90 compact in the thickness direction T. More specifically, the distribution plate body 20 has a notch 20c extending along the thickness direction T; the first heat exchanger 1 extends into the notch 20c to coincide with the distribution plate body 20 in the thickness direction T.

[0083] The distribution plate body 20 has a first portion 20a and a second portion 20b distributed along its width direction W; along the length direction L of the distribution plate body 20, the first portion 20a protrudes from the second portion 20b to form a notch 20c.

[0084] according to Figure 3 , 4 It is understood that the second part 20b has a first distribution port 2a and a second distribution port 2b; the first coolant opening 1a and the second coolant opening 1b are disposed within the notch 20c; the first coolant opening 1a and the second coolant opening 1b are aligned with the first distribution port 2a and the second distribution port 2b respectively; the first hose 41 and the second hose 42 extend within the notch 20c. This design helps to make the thermal management module 90 compact and can reduce the transmission of vibrations from the distribution plate body 20 to the first heat exchanger 1. In a specific embodiment, the first heat exchanger 1 is perpendicular to the distribution plate body 20.

[0085] refer to Figure 6A , 6BThe thermal management module 90 also includes a second heat exchanger 5 and a third hose 43. The second heat exchanger 5 has a third coolant opening 5a, a fourth coolant opening 5b, a third refrigerant opening 5c, and a fourth refrigerant opening 5d. The third coolant opening 5a and the fourth coolant opening 5b define the coolant passage of the second heat exchanger 5, and the third refrigerant opening 5c ​​and the fourth refrigerant opening 5d define the refrigerant passage of the second heat exchanger 5. The coolant in the coolant passage of the second heat exchanger 5 exchanges heat with the refrigerant in the refrigerant passage of the second heat exchanger 5. In one operating mode of the vehicle thermal management system 900, the second heat exchanger 5 acts as a condenser, where the refrigerant condenses in the second heat exchanger 5 to release heat to the coolant, thereby increasing the temperature of the coolant leaving the second heat exchanger 5.

[0086] The distribution plate body 20 also has a third distribution port 2c; a third coolant opening 5a is connected to and communicates with the third distribution port 2c via a third hose 43; wherein, the distribution plate body 20 is disposed opposite to the back plate 30, and the second heat exchanger 5 is mounted on the back plate 30 and located on the outside of the back plate 30. In one operating mode of the vehicle thermal management system, coolant leaves the distribution plate body 20 from the third distribution port 2c and enters the second heat exchanger 5 from the third coolant opening 5a.

[0087] refer to Figure 4 , 6A 6B, the thermal management module 90 also includes a liquid receiver dryer 6; the bracket 3 also includes a mounting part 32; the mounting part 32 is connected to the second plate part 312; the liquid receiver dryer 6 is mounted on the mounting part 32 and connected to the first plate part 311; the inlet 6a of the liquid receiver dryer 6 is in communication with the fourth refrigerant opening 5d. The liquid receiver dryer 6 has an inlet 6a and an outlet 6b, wherein the inlet 6a of the liquid receiver dryer 6 is in communication with the fourth refrigerant opening 5d of the second heat exchanger 5.

[0088] Figures 8A to 14 A coolant distribution assembly 2 according to one embodiment of the present invention is shown. Figure 8A , 8BAs shown in Figures 9A, 9B, 10A, and 10B, the coolant distribution assembly 2 includes a distribution plate body 20, a cover 21, and a coolant distribution unit 22. The distribution plate body 20 has a mounting cavity 20d, a channel cavity 20e, and a through hole 20f. The through hole 20f connects the mounting cavity 20d and the channel cavity 20e. The mounting cavity 20d has a mounting opening 205, and the channel cavity 20e has a channel opening 206. The mounting opening 205 and the channel opening 206 face opposite sides in the thickness direction T of the distribution plate body 20. The coolant distribution unit 22 is mounted in the mounting cavity 20d through the mounting opening 205. The cover 21 covers the channel opening 206. This design makes the coolant distribution assembly 2 easy to assemble. In a specific embodiment, the cover 21 and the distribution plate body 20 are connected as a single unit by thermofusion welding.

[0089] refer to Figure 8A The cover 21 has an interface portion 21a; the interface portion 21a communicates with the channel cavity 20e. The interface portion 21a can communicate with a coolant pipeline outside the thermal management module 90.

[0090] Continue to refer to Figure 10A and Figure 10B The mounting cavity 20d has a first bottom wall 201 and a first side wall 202. Along the thickness direction T of the distribution plate body 20, one end of the first side wall 202 is connected to the first bottom wall 201, and the other end of the first side wall 202 defines a mounting opening 205. The channel cavity 20e has a second bottom wall 203 and a second side wall 204. Along the thickness direction T of the distribution plate body 20, one end of the second side wall 204 is connected to the second bottom wall 203, and the other end of the second side wall 204 defines a channel opening 206. Within the mounting cavity 20d, the edge of the through hole 20f is formed on the first side wall 202 and / or the first bottom wall 201; within the channel cavity 20e, the edge of the through hole 20f is formed on the second side wall 204 and / or the second bottom wall 203. This design allows the mounting cavity 20d and the channel cavity 20e to be distributed relatively closely on the distribution plate body 20.

[0091] like Figure 10B As shown, the mounting cavity 20d has a first depth D1 defined by the mounting opening 205 and the first bottom wall 201 in the thickness direction T; the channel cavity 20e has a second depth D2 defined by the mounting opening 206 and the second bottom wall 203 in the thickness direction T; the first depth D1 and the second depth D2 at least partially overlap in the thickness direction T to define an overlap area D3; at least a portion of the edge of the through hole 20f is located in the overlap area 20g. This design makes the structure of the distribution plate body 20 compact in the thickness direction T.

[0092] refer to Figure 10B , 1112. The edge of the through-hole 20f includes a first edge 2031 and a second edge 2041 located within the channel cavity 20e; the first edge 2031 is formed on the second bottom wall 203, and the second edge 2041 is formed on the second side wall 204. The edge of the through-hole 20f also includes a third edge 2011 and a fourth edge 2021 located within the mounting cavity 20d; the third edge 2011 is formed on the first bottom wall 201, and the fourth edge 2021 is formed on the first side wall 202. This design increases the area of ​​the through-hole 20f, thereby allowing a larger flow rate of coolant to pass through.

[0093] refer to Figure 1 , 2 3, 9B, 10A, 10B, the coolant distribution unit 22 includes a coolant pump 221, and the mounting cavity 20d includes a pump mounting cavity 20d'; the coolant pump 221 is installed in the pump mounting cavity 20d'; the coolant pump 221 is used to draw in and discharge coolant into the pump mounting cavity 20d'. The coolant distribution unit 22 also includes a coolant valve 222; the mounting cavity 20d also includes a valve mounting cavity 20d'", and the coolant valve 222 is used to control the flow of coolant in the valve mounting cavity 20d'.

[0094] like Figure 8B As shown, the through hole 20f includes an upstream through hole 20f' and a downstream through hole 20f", and the channel cavity 20e includes an upstream channel cavity 20e' and a downstream channel cavity 20e". The pump mounting cavity 20d' is connected to the upstream channel cavity 20e' through the upstream through hole 20f'; the pump mounting cavity 20d' is connected to the downstream channel cavity 20e" through the downstream through hole 20f". The pump mounting cavity 20d' is configured to draw in coolant from the upstream channel cavity 20e' through the upstream through hole 20f' and discharge coolant to the downstream channel cavity 20e" through the downstream through hole 20f".

[0095] like Figure 10B , 12 As shown in Figure 13, the first bottom wall 201 of the pump mounting cavity 20d' is recessed to form a vortex flow channel 201a; wherein, the vortex flow channel 201a gradually widens along the direction pointing to the downstream through hole 20f”.

[0096] refer to Figure 3 , Figure 9B , Figure 10A , Figure 14 and Figure 18The pump mounting cavity 20d' includes a first pump mounting cavity 20d'1 and a second pump mounting cavity 20d'2; the coolant pump 221 includes a first coolant pump 2211 installed in the first pump mounting cavity 20d'1 and a second coolant pump 2212 installed in the second pump mounting cavity 20d'2, and also includes a third coolant pump 2213; the upstream through hole 20f' includes a first upstream through hole 20f'1 and a second upstream through hole 20f'2; the downstream through hole 20f” includes a first downstream through hole 20f”1 and a second downstream through hole 20f”2; the downstream channel cavity 20e” includes a first downstream channel cavity 20e”1 and a second downstream channel cavity 20e”2;

[0097] The first pump mounting cavity 20d'1 is configured to draw in coolant from the upstream channel cavity 20e' through the first upstream through-hole 20f'1 and discharge coolant to the first downstream channel cavity 20e"1 through the first downstream through-hole 20f"1; the second pump mounting cavity 20d'2 is configured to draw in coolant from the upstream channel cavity 20e' through the second upstream through-hole 20f'2 and discharge coolant to the second downstream channel cavity 20e"2 through the second downstream through-hole 20f"2. This design allows the first pump mounting cavity 20d'1 and the second pump mounting cavity 20d'2 to share the same upstream channel cavity 20e', thereby making the structure of the distribution plate body 20 compact.

[0098] Continue to refer to Figure 9A The first upstream through hole 20f'1 and the second upstream through hole 20f'2 are distributed at a certain distance along the extension direction of the upstream channel cavity 20e'.

[0099] refer to Figure 14The interface portion 21a of the cover 21 includes a first interface portion 21a1, a second interface portion 21a2, a third interface portion 21a3, a fourth interface portion 21a4, a fifth interface portion 21a5, and a sixth interface portion 21a6. The first interface portion 21a1 and the second interface portion 21a2 are respectively connected to the upstream channel cavity 20e'. The first interface portion 21a1 and the first upstream through hole 20f'1 are arranged along the same center line, and the second interface portion 21a2 and the second upstream through hole 20f'2 are arranged along the same center line. This design allows the coolant entering the upstream channel cavity 20e' from the first interface portion 21a1 to pass through the first upstream through hole 20f'1 and enter the first pump mounting cavity 20d'1 via the shortest path, and allows the coolant entering the upstream channel cavity 20e' from the second interface portion 21a2 to pass through the second upstream through hole 20f'2 and enter the second pump mounting cavity 20d'2 via the shortest path. This effectively reduces the possibility that coolant entering the upstream channel cavity 20e' from the first interface 21a1 will enter the second pump mounting cavity 20d'2, and also effectively reduces the possibility that coolant entering the upstream channel cavity 20e' from the second interface 21a2 will enter the first pump mounting cavity 20d'1. The third interface 21a3, the fourth interface 21a4, the fifth interface 21a5, and the sixth interface 21a6 are each connected to their respective channel cavities 20e.

[0100] Continue to refer to Figure 3 , 9A9B, 14, and 18, the coolant distribution unit 22 further includes a coolant valve 222; the mounting cavity 20d further includes a valve mounting cavity 20d”; the coolant valve 222 is mounted in the valve mounting cavity 20d”; wherein, the coolant valve 222 includes a first coolant valve 2221, a second coolant valve 2222, and a third coolant valve 2223; the valve mounting cavity 20d” includes a first valve mounting cavity 20d”1, a second valve mounting cavity 20d”2, and a third valve mounting cavity 20d”3; the first coolant valve 2221 is mounted in the first valve mounting cavity 20d”1, and the second coolant valve 222… 2 is installed in the second valve mounting cavity 20d”2, and the third coolant valve 2223 is installed in the third valve mounting cavity 20d”3; the through hole 20f includes a first intermediate through hole 20f-1; the upstream channel cavity 20e' is connected to the first valve mounting cavity 20d”1 through the first intermediate through hole 20f-1; the first intermediate through hole 20f-1, the first upstream through hole 20f'1 and the second upstream through hole 20f'2 are distributed along the extension direction of the upstream channel cavity 20e'; wherein, the second upstream through hole 20f'2 is located between the first intermediate through hole 20f-1 and the first upstream through hole 20f'1. This design allows the coolant entering the upstream channel cavity 20e' from the first intermediate through hole 20f-1 to first pass through the second upstream through hole 20f'2 and pass through the second upstream through hole 20f'2 as much as possible to enter the second pump mounting cavity 20d’2, thereby reducing the possibility that the coolant enters the first pump mounting cavity 20d’1 through the first upstream through hole 20f'1.

[0101] refer to Figure 1 , 2 3, 4, 6A, 6B, 9A, 9B and Figure 18 The thermal management module 90 includes a first heat exchanger 1, a second heat exchanger 5, and a coolant distribution assembly 2; the first heat exchanger 1 has a first coolant opening 1a and a second coolant opening 1b; the second heat exchanger 5 has a third coolant opening 5a and a fourth coolant opening 5b; the coolant distribution assembly 2 has a first distribution port 2a, a second distribution port 2b, a third distribution port 2c, a first intermediate through hole 20f-1, an upstream channel cavity 20e', and a first downstream channel cavity 20e”1; the first coolant opening 1a is connected to and communicates with the first distribution port 2a; the second coolant opening 1b is connected to and communicates with the second distribution port 2b, and communicates with the upstream channel cavity 20e' through the second distribution port 2b and the first intermediate through hole 20f-1; the third coolant opening 5a is connected to and communicates with the third distribution port 2c, and communicates with the first downstream channel cavity 20e”1 through the third distribution port 2c.

[0102] Continue to refer to Figure 18The vehicle thermal management system 900 includes a heater core 91 and a thermal management module 90; the thermal management module 90 includes a coolant distribution assembly 2; the outlet 91a of the heater core 91 is connected to the first interface portion 21a1 of the coolant distribution assembly 2, and is connected to the upstream channel cavity 20e' of the coolant distribution assembly 2 through the first interface portion 21a1.

[0103] In one operating mode of the vehicle thermal management system 900, the coolant cooled by the first heat exchanger 1 leaves the first heat exchanger 1 through the second coolant opening 1b, then enters the distribution plate body 20 through the second distribution port 2b, and enters the upstream channel cavity 20e' under the control of the first coolant valve 2221 through the first valve mounting cavity 20d”1 and the first intermediate through hole 20f-1; the coolant heated by the heater core 91 leaves the heater core 91 through the outlet 91a and enters the upstream channel cavity 20e' through the first interface 21a1. Because the first interface 21a1 and the first upstream through hole 20f'1 are arranged along the same centerline, the coolant heated by the heater core 91... The coolant can pass through the first upstream through-hole 20f'1 as much as possible to enter the first pump mounting cavity 20d'1. Since the second upstream through-hole 20f'2 is closer to the first intermediate through-hole 20f-1 than the first upstream through-hole 20f'1, the coolant cooled by the first heat exchanger 1 can pass through the second upstream through-hole 20f'2 as much as possible to enter the second pump mounting cavity 20d'2. Therefore, in this operating mode of the vehicle thermal management system 900, the coolant heated by the heater core 91 and the coolant cooled by the first heat exchanger 1 can avoid mixing in the upstream channel cavity 20e' as much as possible, which is beneficial to improving the efficiency of the vehicle thermal management system 900.

[0104] Figures 15A to 17B A refrigerant valve assembly 2 according to one embodiment of the present invention is shown. The refrigerant valve assembly 2 includes a valve body 70; the valve body 70 has a first valve body opening 70a, a second valve body opening 70b, a third valve body opening 70c, a first intermediate cavity 70g, a fourth valve body opening 70d, a fifth valve body opening 70e, a sixth valve body opening 70f, and a second intermediate cavity 70h; wherein the first intermediate cavity 70g, together with the first valve body opening 70a, the second valve body opening 70b, and the third valve body opening 70c, respectively defines a first internal channel 701, a second internal channel 702, and a third internal channel 703; the second intermediate cavity 70h, together with the fourth valve body opening 70d, the fifth valve body opening 70e, and the sixth valve body opening 70f, respectively defines a fourth internal channel 704, a fifth internal channel 705, and a sixth internal channel 706. This design helps to reduce the number of openings in the valve body 70, thereby making the valve body 70 structurally compact.

[0105] In one specific embodiment, the first valve body opening 70a is the inlet, and the second valve body opening 70b and the third valve body opening 70c are the outlets. Refrigerant enters the valve body 70 through the first valve body opening 70a and flows into the first intermediate cavity 70g through the first internal channel 701. Then, in the first intermediate cavity 70g, it splits into two paths: one flows through the second internal channel 702 to the second valve body opening 70b, and the other flows through the third internal channel 703 to the third valve body opening 70c. The refrigerant exits the valve body 70 through the second valve body opening 70b and the third valve body opening 70c, respectively. It can be seen that the second valve body opening 70b and the third valve body opening 70c, which serve as outlets, share the first valve body opening 70a, which serves as the inlet. This design helps reduce the number of openings in the valve body 70, thus making the valve body 70 more compact.

[0106] The valve body 70 also has a seventh valve body opening 70L, which communicates with the first internal passage 701. A portion of the refrigerant entering the valve body 70 from the first valve body opening 70a flows to the seventh valve body opening 70L, while another portion flows to the first intermediate cavity 70g. This design improves the adaptability of the valve body 70.

[0107] Furthermore, the fourth valve body opening 70d and the fifth valve body opening 70e are inlets, and the sixth valve body opening 70f is the outlet. Two refrigerant streams enter the valve body 70 from the fourth valve body opening 70d and the fifth valve body opening 70e, respectively, flowing along the fourth internal channel 704 and the fifth internal channel 705 to the second intermediate cavity 70h. In the second intermediate cavity 70h, they converge into one stream, which then flows along the sixth internal channel 706 to the sixth valve body opening 70f, and exits the valve body 70 from the sixth valve body opening 70f. It can be seen that the fourth valve body opening 70d and the fifth valve body opening 70e, serving as inlets, share the sixth valve body opening 70f, which serves as the outlet. This design helps reduce the number of openings in the valve body 70, thus making the valve body 70 more compact.

[0108] The valve body 70 also has an eighth valve body opening 70M, which communicates with the fifth internal passage 705. Refrigerant entering the valve body 70 through the eighth valve body opening 70M merges with refrigerant entering the valve body 70 through the fifth valve body opening 70e and flows into the second intermediate cavity 70h. This design improves the adaptability of the valve body 70.

[0109] like Figure 17A As shown, the valve body 70 also has a sensor opening 70n, and the first expansion valve 71 includes a sensor (not shown in the figure). The sensor is mounted in the sensor opening 70n and at least a portion of it is located within the fourth internal channel 704 to detect the refrigerant within the fourth internal channel 704.

[0110] In one specific embodiment, the refrigerant entering the valve body 70 from the first valve body opening 70a is a high-pressure, unthrottled refrigerant, while the refrigerant leaving the valve body 70 from the second valve body opening 70b and the third valve body opening 70c is a low-pressure, throttled refrigerant. The refrigerant entering the valve body 70 from the fourth valve body opening 70d and the fifth valve body opening 70e is a low-pressure, evaporated refrigerant, and the refrigerant leaving the valve body 70 from the sixth valve body opening 70f is a low-pressure, evaporated refrigerant.

[0111] refer to Figure 15A , 15B 17A, 17B, the refrigerant valve assembly 7 also includes a first expansion valve 71 and a second expansion valve 72; the valve body 70 further has a first valve chamber 70i and a second valve chamber 70j; the first valve chamber 70i communicates with a second internal channel 702, and the second valve chamber 70j communicates with a third internal channel 703; the first expansion valve 71 is disposed in the first valve chamber 70i and is used to throttle the refrigerant passing through the second internal channel 702; the second expansion valve 72 is disposed in the second valve chamber 70j and is used to throttle the refrigerant in the third internal channel 703. This design allows the refrigerant valve assembly 7 to have at least two channels for throttling refrigerant, improving the integration and compactness of the refrigerant valve assembly 7.

[0112] Continue to refer to Figure 15A , 15B 17A, 17B, the refrigerant valve assembly 7 also includes a shut-off valve 73; the valve body 70 further has a third valve chamber 70k, which communicates with the fifth mounting channel 705; the shut-off valve 73 is installed in the third mounting chamber 70k and is used to control the flow of refrigerant in the fifth mounting channel 705. This design enables the refrigerant valve assembly 7 to control the flow of coolant in the fifth mounting channel 705, thereby allowing the refrigerant valve assembly 7 to adapt to various operating modes of the vehicle thermal management system 900.

[0113] refer to Figure 16A , 16B The first valve body opening 70a, the first internal channel 701, the first intermediate cavity 70g, the sixth valve body opening 70f, the sixth internal channel 706, and the second intermediate cavity 70h are all located on the same cross section BB. This design allows the first valve body opening 70a, the first internal channel 701, the first intermediate cavity 70g, the sixth valve body opening 70f, the sixth internal channel 706, and the second intermediate cavity 70h to all be located on the same cross section BB, thus making the structure of the valve body 70 compact in the direction perpendicular to the cross section BB.

[0114] Continue to refer to Figure 16A , 16BThe second internal channel 702 has a first segment 7021 connected to the first intermediate cavity 70g; the third internal channel 703 has a second segment 7031 connected to the first intermediate cavity 70g; the first segment 7021 and the second segment 7031 are located on the cross section BB. This design ensures that at least a portion of the second internal channel 702 and the third internal channel 703 are also located on the cross section BB, thereby making the valve body 70 structurally compact in the direction perpendicular to the cross section BB.

[0115] Continue to refer to Figure 16A , 16B The fifth installation channel 705 has a third segment 7051 connected to the second intermediate cavity 70h; the third segment 7051 is located on the cross section BB; the fourth internal channel 704 is connected to and communicates with the third segment 7051; the fourth internal channel 704 extends perpendicular to the cross section BB.

[0116] like Figure 1 , 2 As shown in Figures 3 and 18, the thermal management module 90 also includes an intermediate heat exchanger 8, which is connected to the valve body 70. The intermediate heat exchanger 8 has a first heat exchanger opening 8a, a second heat exchanger opening 8b, a third heat exchanger opening 8c, and a fourth heat exchanger opening 8d. The first heat exchanger opening 8a and the third heat exchanger opening 8c define a first intermediate heat exchange channel 81; the second heat exchanger opening 8b and the fourth heat exchanger opening 8d define a second intermediate heat exchanger channel 82. The first heat exchanger opening 8a communicates with the first valve body opening 70a, the second heat exchanger opening 8b communicates with the sixth valve body opening 70f, the third heat exchanger opening 8c communicates with the outlet 6b of the liquid receiver dryer 6, and the fourth heat exchanger opening 8d communicates with the inlet of the compressor 96. The refrigerant in the first intermediate heat exchange channel 81 exchanges heat with the refrigerant in the second intermediate heat exchanger channel 82.

[0117] Figures 19 to 26 Multiple operating modes of the vehicle thermal management system 900 are shown. Figure 19 In the first operating mode of the vehicle thermal management system 900 shown, both the external electronic expansion valve 991 and the external shut-off valve 992 are closed, and there is no refrigerant flow in the external heat exchanger 98. There is no coolant flow in the heater core 91.

[0118] Refrigerant discharged from compressor 96 enters the second heat exchanger 5 through the third refrigerant opening 5c ​​and exits the second heat exchanger 5 through the fourth refrigerant opening 5d. In the second heat exchanger 5, the refrigerant condenses and releases heat. Then, the refrigerant passes through the first intermediate heat exchange channel 81 of the receiver-dryer 6 and intermediate heat exchanger 8, and enters valve body 70 through the first valve body opening 70a, flowing towards the first intermediate cavity 70g. The first expansion valve 71 is closed, preventing refrigerant flow from the first intermediate cavity 70g into the first heat exchanger 1. The second expansion valve 72 opens and throttles the refrigerant from the first intermediate cavity 70g. The throttled refrigerant enters evaporator 94 and evaporates, absorbing heat from the airflow flowing through evaporator 94, thereby generating a cooled airflow to be delivered into the vehicle compartment. Refrigerant flowing out of evaporator 94 enters valve body 70 through the fifth valve body opening 70e. The shut-off valve 73 is open, allowing refrigerant to flow out of valve body 70 through the second intermediate cavity 70h and the sixth valve body opening 70f. The refrigerant flowing out of the valve body 70 from the sixth valve body opening 70f passes through the second intermediate heat exchange channel 82 of the intermediate heat exchanger 8 and enters the discharge port of the compressor 96.

[0119] Coolant flowing from the outlet of the first coolant pump 2211 enters the second heat exchanger 5 through the third coolant opening 5a and exits the second heat exchanger 5 through the fourth coolant opening 5b. In the second heat exchanger 5, the heat released by the refrigerant is absorbed by the coolant, causing the refrigerant temperature to rise. The fourth coolant opening 5b is connected to the inlet of the coolant heating device 95, allowing the coolant leaving the second heat exchanger 5 to enter the coolant heating device 95. The outlet of the coolant heating device 95 is connected to the sixth interface 21a6. The coolant leaving the coolant heating device 95 enters the coolant distribution assembly 2 through the sixth interface 21a6 and merges with the coolant leaving the motor 93 under the control of the third coolant valve 2223. The merged coolant flows to the fourth interface 21a4 under the control of the second coolant valve 2222, and exits the coolant distribution assembly 2 from the fourth interface 21a4 to the radiator 97. The outlet of the radiator 97 is connected to the second interface 21a2. The coolant leaving the radiator 97 enters the coolant distribution assembly 2 from the second interface 21a2, and more specifically, enters the upstream channel cavity 20e'. A portion of the upstream channel cavity 20e' flows to the third coolant opening 5a under the drive of the first coolant pump 2211 and enters the second heat exchanger 5. Another portion of the upstream channel cavity 20e' leaves the coolant distribution assembly 2 through the second coolant pump 2212 and the third interface 21a3 and flows to the motor 93. The first coolant valve 2221 and the second coolant valve 2222 are configured to prevent coolant flow in the first heat exchanger 1 and to prevent coolant from passing through the third coolant pump 2213 and the battery 92, thereby preventing the battery 92 from exchanging heat with the coolant.

[0120] exist Figure 20 In the second operating mode of the vehicle thermal management system 900 shown, compared to the first operating mode, the first coolant valve 2221 and the second coolant valve 2222 are configured to allow coolant flow in the first heat exchanger 1 and the third coolant pump 2213, and the first expansion valve 71 is opened, allowing refrigerant flow from the first intermediate chamber 70g in the first heat exchanger 1. The refrigerant in the first heat exchanger 1 evaporates to absorb heat from the coolant in the first heat exchanger 1, thereby lowering the temperature of the coolant passing through the first heat exchanger 1. The lowered coolant can then cool the battery 92. The distribution plate body 20 also has a fourth distribution port 2d and a fifth distribution port 2e. Coolant for cooling the battery 92 enters and exits the coolant distribution assembly 2 through the fourth distribution port 2d and the fifth distribution port 2e. The distribution plate body 20 also has a confluence chamber 20h, which is connected to the first distribution port 2a and the fifth distribution port 2e, respectively. The confluence chamber 20h is also connected to the second valve mounting chamber 20d”2.

[0121] exist Figure 21 In the third operating mode of the vehicle thermal management system 900 shown, compared to the first operating mode, the coolant with a higher temperature leaving the coolant heating device 95 enters the coolant distribution assembly 2 through the sixth interface 21a6 and flows to the heater core 91 under the control of the third coolant valve 2223, enabling the heater core 91 to heat the airflow cooled by the evaporator 94. The distribution plate body 20 also has a sixth distribution port 2f. The coolant passing through the heater core 91 enters and exits the coolant distribution assembly 2 via the first interface 21a1 and the sixth distribution port 2f. The coolant leaving the heater core 91 enters the upstream channel cavity 20e' after entering the coolant distribution assembly 2 through the first interface 21a1. The coolant leaving the motor 93 no longer merges with the coolant leaving the coolant heating device 95, but flows to the fourth interface 21a4 under the control of the second coolant valve 2222, and then leaves the coolant distribution assembly 2 from the fourth interface 21a4 to the radiator 97.

[0122] exist Figure 22In the fourth operating mode of the vehicle thermal management system 900 shown, compared to the first operating mode, the external electronic expansion valve 991 is closed, and the external shut-off valve 992 is open. The shut-off valve 73 of the refrigerant valve assembly 7 is closed, so that the refrigerant flowing from the evaporator 94 does not enter the valve body 70, but flows to the external intermediate heat exchanger 99, and then through the external shut-off valve 992 to the external heat exchanger 98. The refrigerant leaving the external heat exchanger 98 flows to the suction port of the compressor 96 after passing through the external intermediate heat exchanger 99. In this operating mode, the external heat exchanger 98 acts as an evaporator to absorb heat from the external airflow. The high-temperature refrigerant leaving the coolant heating device 95 enters the coolant distribution assembly 2 from the sixth interface 21a6, and flows to the heater core 91 under the control of the third coolant valve 2223, so that the heater core 91 can heat the airflow cooled by the evaporator 94. The coolant leaving the motor 93 no longer merges with the coolant leaving the coolant heating device 95. Instead, it flows to the fourth interface 21a4 under the control of the second coolant valve 2222, and then leaves the coolant distribution assembly 2 from the fourth interface 21a4 to the radiator 97. The first coolant valve 2221 and the second coolant valve 2222 are configured to prevent coolant flow in the first heat exchanger 1, while coolant passes through the battery 92 and the third coolant pump 2213. This allows the battery 92 to exchange heat with the coolant, thus cooling the battery 92.

[0123] exist Figure 23 In the fifth operating mode of the vehicle thermal management system 900 shown, compared to the fourth operating mode, the external electronic expansion valve 991 is in the open state, and the external shut-off valve 992 is in the closed state. In this mode, the external electronic expansion valve 991 throttles the refrigerant entering the external heat exchanger 98, thereby achieving a lower evaporation temperature compared to the fourth operating mode. The external heat exchanger 98 functions as an evaporator in this mode.

[0124] exist Figure 24In the sixth operating mode of the vehicle thermal management system 900 shown, compared to the fourth operating mode, the second coolant valve 2222 is configured to prevent coolant flow in the radiator 97. The coolant leaving the motor 93 has been heated by the motor 93. This heated coolant enters the coolant distribution assembly 2 via the fifth interface 21a5 and flows to the confluence chamber 20h under the guidance of the second coolant valve 2222. It then leaves the coolant distribution assembly 2 through the first distribution port 2a and enters the first heat exchanger 1 through the first coolant opening 1a. The second coolant valve 2221 is configured to guide the coolant leaving the first heat exchanger 1 from the second coolant opening 1b into the upstream channel chamber 20e'. There is no coolant flow in the battery 92 and the third coolant pump 2213. The first expansion valve 71 opens, allowing refrigerant flow from the first intermediate chamber 70g to the first heat exchanger 1. The refrigerant in the first heat exchanger 1 evaporates to absorb heat from the coolant in the first heat exchanger 1. The refrigerant leaving the first heat exchanger 1 flows to the intermediate heat exchanger 8 through the second intermediate chamber 70h. The refrigerant leaving the intermediate heat exchanger 8 merges with the refrigerant leaving the external intermediate heat exchanger 99 and flows to the suction port of the compressor 96.

[0125] exist Figure 25 In the seventh operating mode of the vehicle thermal management system 900 shown, there is no refrigerant flow in the refrigerant circuit. In the coolant circuit, the coolant heating device 95 heats the coolant leaving the second heat exchanger 5 from the fourth coolant opening 5b. The heated coolant is divided into two paths under the guidance of the third coolant valve 2223: one path passes through the battery 92 to heat the battery, and the other path passes through the heater core 91 to heat the airflow passing through the heater core 91. The coolant leaving the battery 92 and the coolant leaving the heater core 91 respectively enter the upstream passage cavity 20e' and flow to the third coolant opening 5a of the second heat exchanger 5 under the suction of the first coolant pump 2211.

[0126] exist Figure 26 In the eighth operating mode of the vehicle thermal management system 900 shown, there is no refrigerant flow in the refrigerant circuit, and no coolant flow in the coolant heating device 95 and the second heat exchanger 5. The coolant leaving the motor 93 passes through the battery 92, allowing the heat generated during the operation of the motor 93 to be transferred to the battery 92, thereby cooling the motor 93 while simultaneously warming the battery 92.

[0127] Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make possible changes and modifications without departing from the spirit and scope of the present invention. Any modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention shall fall within the protection scope defined by the claims of the present invention.

Claims

1. A coolant distribution assembly, comprising a distribution plate body (20), a cover (21), and a coolant distribution unit (22); the distribution plate body (20) having a mounting cavity (20d), a channel cavity (20e), and a through hole (20f); the through hole (20f) communicating with the mounting cavity (20d) and the channel cavity (20e). The mounting cavity (20d) has a mounting opening (205), and the channel cavity (20e) has a channel opening (206); the mounting opening (205) and the channel opening (206) are respectively oriented toward both sides of the thickness direction (T) of the distribution plate body (20); The coolant distribution unit (22) is installed in the mounting cavity (20d) through the mounting opening (205); the cover (21) covers the channel opening (206); The cover (21) has an interface (21a); ​​the interface (21a) communicates with the channel cavity (20e); The coolant distribution unit (22) includes a coolant pump (221), and the mounting cavity (20d) includes a pump mounting cavity (20d'). The coolant pump (221) is installed in the pump mounting cavity (20d'); the coolant pump (221) is used to draw in and discharge coolant into the pump mounting cavity (20d'); The through hole (20f) includes an upstream through hole (20f') and a downstream through hole (20f"); the channel cavity (20e) includes an upstream channel cavity (20e') and a downstream channel cavity (20e"); the pump mounting cavity (20d') is connected to the upstream channel cavity (20e') through the upstream through hole (20f'); the pump mounting cavity (20d') is connected to the downstream channel cavity (20e") through the downstream through hole (20f"); The pump mounting cavity (20d') is configured to draw in coolant from the upstream channel cavity (20e') through the upstream through hole (20f') and discharge coolant to the downstream channel cavity (20e') through the downstream through hole (20f").

2. The coolant distribution assembly as claimed in claim 1, characterized in that, The mounting cavity (20d) has a first bottom wall (201) and a first side wall (202); along the thickness direction (T) of the distribution plate body (20), one end of the first side wall (202) is connected to the first bottom wall (201), and the other end of the first side wall (202) defines the mounting opening (205). The channel cavity (20e) has a second bottom wall (203) and a second side wall (204); along the thickness direction (T) of the distribution plate body (20), one end of the second side wall (204) is connected to the second bottom wall (203), and the other end of the second side wall (204) defines the channel opening (206). Within the mounting cavity (20d), the edge of the through hole (20f) is formed on the first sidewall (202) and / or the first bottom wall (201); within the channel cavity (20e), the edge of the through hole (20f) is formed on the second sidewall (204) and / or the second bottom wall (203).

3. The coolant distribution assembly as claimed in claim 2, characterized in that, The mounting cavity (20d) has a first depth (D1) in the thickness direction (T) defined by the mounting opening (205) and the first bottom wall (201); the channel cavity (20e) has a second depth (D2) in the thickness direction (T) defined by the channel opening (206) and the second bottom wall (203). The first depth (D1) and the second depth (D2) at least partially overlap in the thickness direction (T) to define an overlap region (D3); at least a portion of the edge of the through hole (20f) is located in the overlap region (D3).

4. The coolant distribution assembly as claimed in claim 2, characterized in that, The edge of the through hole (20f) includes a first edge (2031) and a second edge (2041) located within the channel cavity (20e); the first edge (2031) is formed on the second bottom wall (203), and the second edge (2041) is formed on the second side wall (204).

5. The coolant distribution assembly as claimed in claim 2, characterized in that, The edge of the through hole (20f) includes a third edge (2011) and a fourth edge (2021) located within the mounting cavity (20d); the third edge (2011) is formed on the first bottom wall (201), and the fourth edge (2021) is formed on the first side wall (202).

6. The coolant distribution assembly as claimed in claim 1, characterized in that, The first bottom wall (201) of the pump mounting cavity (20d') is recessed to form a vortex flow channel (201a); wherein the vortex flow channel (201a) gradually widens in the direction pointing to the downstream through hole (20f)”.

7. The coolant distribution assembly as claimed in claim 1, characterized in that, The pump mounting cavity (20d') includes a first pump mounting cavity (20d'1) and a second pump mounting cavity (20d'2); the coolant pump (221) includes a first coolant pump (2211) installed in the first pump mounting cavity (20d'1) and a second coolant pump (2212) installed in the second pump mounting cavity (20d'2); the upstream through hole (20f') includes a first upstream through hole (20f'1) and a second upstream through hole (20f'2); the downstream through hole (20f") includes a first downstream through hole (20f”1) and a second downstream through hole (20f”2); the downstream channel cavity (20e") includes a first downstream channel cavity (20e”1) and a second downstream channel cavity (20e”2); The first pump mounting chamber (20d'1) is configured to draw in coolant from the upstream channel chamber (20e') through the first upstream through-hole (20f'1) and discharge coolant to the first downstream channel chamber (20e"1) through the first downstream through-hole (20f"1); the second pump mounting chamber (20d'2) is configured to draw in coolant from the upstream channel chamber (20e') through the second upstream through-hole (20f'2) and discharge coolant to the second downstream channel chamber (20e"2) through the second downstream through-hole (20f"2).

8. The coolant distribution assembly as claimed in claim 7, characterized in that, The interface portion (21a) of the cover (21) includes a first interface portion (21a1) and a second interface portion (21a2); the first interface portion (21a1) and the second interface portion (21a2) are respectively connected to the upstream channel cavity (20e'), wherein the first interface portion (21a1) is arranged with the first upstream through hole (20f'1) along the same center line, and the second interface portion (21a2) is arranged with the second upstream through hole (20f'2) along the same center line.

9. The coolant distribution assembly as claimed in claim 7, characterized in that, The coolant distribution unit (22) further includes a coolant valve (222); the mounting cavity (20d) further includes a valve mounting cavity (20d”); the coolant valve (222) is mounted in the valve mounting cavity (20d”). Wherein, the coolant valve (222) includes a first coolant valve (2221); the valve mounting cavity (20d) includes a first valve mounting cavity (20d”1); the first coolant valve (2221) is mounted in the first valve mounting cavity (20d”1); The through hole (20f) includes a first intermediate through hole (20f-1); the upstream channel cavity (20e') and the first valve mounting cavity (20d”1) are connected through the first intermediate through hole (20f-1); The first intermediate through hole (20f-1), the first upstream through hole (20f'1), and the second upstream through hole (20f'2) are distributed along the extension direction of the upstream channel cavity (20e'); wherein the second upstream through hole (20f'2) is located between the first intermediate through hole (20f-1) and the first upstream through hole (20f'1).

10. A thermal management module, characterized in that, It includes a first heat exchanger (1), a second heat exchanger (5), and a coolant distribution assembly (2) as described in any one of claims 1 to 9; The first heat exchanger (1) has a first coolant opening (1a) and a second coolant opening (1b); The second heat exchanger (5) has a third coolant opening (5a) and a fourth coolant opening (5b); The coolant distribution assembly (2) has a first distribution port (2a), a second distribution port (2b), a third distribution port (2c), a first intermediate through hole (20f-1), an upstream channel cavity (20e'), and a first downstream channel cavity (20e”1); The first coolant opening (1a) is connected to the first distribution port (2a); the second coolant opening (1b) is connected to the second distribution port (2b), and is connected to the upstream channel cavity (20e') through the second distribution port (2b) and the first intermediate through hole (20f-1); The third coolant opening (5a) is connected to the third distribution port (2c) and is connected to the first downstream channel cavity (20e”1) through the third distribution port (2c).

11. A vehicle thermal management system, comprising a heater core (91) and a thermal management module (90); the thermal management module (90) includes a coolant distribution assembly (2) as claimed in any one of claims 1 to 9; the outlet (91a) of the heater core (91) is connected to a first interface portion (21a1) of the coolant distribution assembly (2), and is connected to an upstream channel cavity (20e') of the coolant distribution assembly (2) through the first interface portion (21a1).

Images