A thermal management integrated module and a vehicle thermal management system

Abstract

This application relates to a thermal management integrated module and a vehicle thermal management system. The thermal management integrated module is integrated onto an electric drive, which includes an electric drive housing. The thermal management integrated module includes a flow channel plate, a multi-way valve, and a water pump. The multi-way valve and the water pump are fixed to a first surface of the flow channel plate. A second surface of the flow channel plate is fixedly connected to the electric drive housing, and a first flow channel groove is formed on the second surface. A second flow channel groove is formed on the side of the electric drive housing facing the flow channel plate. The first and second flow channel grooves are joined to form a connecting flow channel, and the two ends of the connecting flow channel are respectively connected to the internal flow channel of the flow channel plate and the internal flow channel of the electric drive housing. The valve seat of the multi-way valve is integrated onto the flow channel plate, thereby reducing the height of the water valve on the module. The integration of the thermal management integrated module with the electric drive reduces the flow resistance caused by the flow channel transition, further optimizes the connection structure of the vehicle thermal management system, and further improves space utilization.

Description

Technical Field

[0001] This application relates to the field of automotive thermal management technology, and in particular to a thermal management integrated module and a vehicle thermal management system. Background Technology

[0002] The thermal management system of new energy vehicles is mainly responsible for the thermal control and regulation of batteries, electric drive systems and power electronic devices. Its main function is to keep the temperature of batteries and power systems within a reasonable range under different operating conditions, so as to ensure the stability of the performance and the extension of the life of new energy vehicles.

[0003] Currently, conventional integrated thermal management modules all adopt an independent, single-unit structure, assembled as a whole in a dedicated installation area in the vehicle's front compartment. The bottom of the module is rigidly fixed to the body sheet metal using shock-absorbing pads and locking screws. The module's outlet connects to external flexible and rigid pipelines, respectively connecting to components of the three major subsystems: electric drive cooling, battery temperature control, and air conditioning heat exchange. Relying on the flow of media through the external pipelines, it completes the thermal management and control of the entire vehicle. However, this structure has the following problems: a separate space needs to be designed in the front compartment to house the thermal management module, which will compress core components such as the motor, radiator, and electronic control, which is not conducive to the front compartment layout; the number of external connection pipelines is large, the pipeline span is large, and there are many pipeline assembly points; the overall weight of the vehicle's thermal management assembly is relatively large, which is not conducive to the control of vehicle lightweighting. Summary of the Invention

[0004] One objective of this application is to provide a thermal management integrated module and a vehicle thermal management system that solves the problems of large overall volume, low space utilization, large number of external pipelines, and long flow channel length in the prior art.

[0005] According to one aspect of this application, a thermal management integrated module is provided, integrated on an electric drive, the electric drive including an electric drive housing, the thermal management integrated module including: a flow channel plate, a multi-way valve and a water pump; The multi-way valve and the water pump are fixed to the first side of the flow channel plate; The second side of the flow channel plate is fixedly connected to the electric drive housing, and a first flow channel groove is formed on the second side. A second flow channel groove is formed on the side of the electric drive housing facing the flow channel plate. The first flow channel and the second flow channel are joined together to form a connected flow channel, and the two ends of the connected flow channel are respectively connected to the internal flow channel of the flow channel plate and the internal flow channel of the electric drive housing.

[0006] Optionally, the multi-way valve includes a valve seat and a valve cover, the valve seat is integrated and installed on the first side of the flow channel plate, and a sealing structure is provided between the multi-way valve and the flow channel plate.

[0007] Optionally, the sealing structure includes a first sealing element fitted onto the valve cover, the first sealing element being used to achieve a radial seal between the valve cover and the valve seat.

[0008] Optionally, the sealing structure further includes a second sealing element assembled within the valve seat, the second sealing element being used to achieve end face sealing between the flow channel plate and multiple valve ports within the valve seat.

[0009] Optionally, the second surface of the flow channel plate is provided with an annular sealing groove on the outer periphery of the second flow channel groove; The annular sealing groove is equipped with a static sealing gasket, which is used to seal the circumferential gap of the connecting flow channel formed after assembly.

[0010] Optionally, the multi-way valve further includes a valve core and an actuator; The valve core is disposed between the valve cover and the valve seat, and the actuator is fixed to the top of the valve cover. The actuator is used to drive the valve core to rotate to switch the connection state of different flow channels.

[0011] Optionally, the flow channel plate is fixedly connected to the electric drive housing by a positioning structure and fasteners; The positioning structure includes multiple positioning pins, which are used to limit the relative displacement between the flow channel plate and the electric drive housing.

[0012] Optionally, the fastener includes a plurality of screws, and the flow channel plate is provided with a plurality of through-hole inserts adapted to the plurality of screws; Each screw passes through the corresponding through-hole insert to lock the flow channel plate to the electric drive housing.

[0013] Optionally, the thermal management integrated module further includes a water temperature sensor; The water temperature sensor is fixed to the first side of the flow channel plate by a clip and is used to detect the temperature of the coolant in the internal flow channel of the flow channel plate.

[0014] Optionally, the electric drive housing is provided with a docking through hole; One end of the connecting channel is connected to the internal channel of the channel plate through the docking through hole, and the other end is connected to the internal channel of the electric drive housing through the docking through hole.

[0015] Optionally, the flow channel plate is provided with multiple general water circuit interfaces and at least one VDA water circuit interface; The multiple universal interfaces and at least one VDA water interface are all connected to the internal flow channels of the flow channel plate for external connection of the vehicle cooling pipeline.

[0016] Optionally, the flow channel plate includes an upper flow channel plate and a lower flow channel plate; The lower surface of the upper flow channel plate is provided with a first half flow channel groove, and the upper surface of the lower flow channel plate is provided with a second half flow channel groove. After the upper flow channel plate and the lower flow channel plate are welded and fixed, the first half of the flow channel groove and the second half of the flow channel groove are combined to form the internal flow channel of the flow channel plate.

[0017] Optionally, the electric drive housing is provided with a client water channel interface, which is connected to the internal flow channel of the flow channel plate through the connecting flow channel.

[0018] According to another aspect of this application, a vehicle thermal management system is also provided, including the thermal management integrated module as described above.

[0019] Compared with existing technologies, this application provides a thermal management integrated module integrated on an electric drive. The electric drive includes an electric drive housing, and the thermal management integrated module includes a flow channel plate, a multi-way valve, and a water pump. The multi-way valve and the water pump are fixed to a first surface of the flow channel plate. A second surface of the flow channel plate is fixedly connected to the electric drive housing, and a first flow channel groove is formed on the second surface. A second flow channel groove is formed on the side of the electric drive housing facing the flow channel plate. The first flow channel groove and the second flow channel groove are joined to form a connecting flow channel, and the two ends of the connecting flow channel are respectively connected to the internal flow channel of the flow channel plate and the internal flow channel of the electric drive housing. The valve seat of the multi-way valve is integrated on the flow channel plate, thereby reducing the height of the water valve on the module. The thermal management integrated module is integrated with the electric drive, reducing the flow resistance caused by the flow channel transition, further optimizing the connection structure of the vehicle thermal management system, and further improving space utilization. Attached Figure Description

[0020] To make the above-mentioned objectives, features and advantages of this application more apparent and understandable, the specific embodiments of this application will be described in detail below with reference to the accompanying drawings, wherein: Figure 1 An exploded view of the thermal management integrated module in one embodiment of this application is shown; Figure 2 A rear view of a thermal management integrated module in one embodiment of this application is shown; Figure 3 This diagram shows the assembly structure of the electric drive housing and the flow channel plate in one embodiment of this application; Figure 4 This diagram illustrates the assembly relationship between the eight-way valve and the flow channel plate in one embodiment of this application. Figure 5 A cross-sectional schematic diagram of an integrated valve seat according to an embodiment of this application is shown; Figure 6 A top view of a water valve integrated into a flow channel plate is shown in one embodiment of this application; Figure 7A cross-sectional view of the thermal management integrated module and the electric drive assembly in one embodiment of this application is shown; Figure 8 A schematic diagram of the fixed installation of a water valve is shown in one embodiment of this application; Figure 9 A schematic diagram of the water interface of the thermal management integrated module in one embodiment of this application is shown; Figure 10 A schematic diagram of the client interface of the thermal management integrated module in one embodiment of this application is shown.

[0021] The same or similar reference numerals in the accompanying drawings represent the same or similar parts.

[0022] The attached diagram is labeled as follows: 10-Thermal management integrated module; 11-Flow channel plate; 101-Upper flow channel plate; 102-Lower flow channel plate; 111-First surface; 112-Second surface; 113-Mating through hole; 114-Universal water circuit interface; 115-VDA water circuit interface; 110-First flow channel groove; 120-Second flow channel groove; 12-Multi-way valve; 121-Valve seat; 122-Valve core; 123-Valve cover; 124-Actuator; 13-Water pump; 14-First seal; 15-Second seal; 16-Annular sealing groove; 17-Static sealing gasket; 18-Positioning structure; 19-Fastener; 201-Water temperature sensor; 202-Snap-on; 20 - Electric drive; 21 - Electric drive housing; 22 - Client water interface; 30 - Connecting flow channel. Detailed Implementation

[0023] To make the above-mentioned objectives, features and advantages of this application more apparent and understandable, the specific embodiments of this application will be described in detail below with reference to the accompanying drawings.

[0024] Many specific details are set forth in the following description in order to provide a full understanding of this application. However, this application may also be implemented in other ways different from those described herein, and therefore this application is not limited to the specific embodiments disclosed below.

[0025] In the description of this application, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0026] Furthermore, the terms “up,” “down,” “left,” “right,” “top,” “bottom,” “horizontal,” and “vertical” used in the following description should be understood as the orientations shown in the paragraph and related figures. This relative terminology is for illustrative purposes only and does not imply that the described device must be manufactured or operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0027] It is understood that although terms such as “first,” “second,” “third,” etc., may be used here to describe various pipes, channels, components, areas, layers, and / or parts, these components, areas, layers, and / or parts should not be limited by these terms, and these terms are only used to distinguish different pipes, channels, components, areas, layers, and / or parts.

[0028] refer to Figures 1 to 10 The thermal management integrated module 10 is integrated on the electric drive 20. The electric drive 20 includes an electric drive housing 21. The thermal management integrated module 10 includes a flow channel plate 11, a multi-way valve 12, and a water pump 13. The multi-way valve 12 and the water pump 13 are fixed to the first surface 111 of the flow channel plate 11. The second surface 112 of the flow channel plate 11 is fixedly connected to the electric drive housing 21. A first flow channel groove 110 is formed on the second surface 112. A second flow channel groove 120 is formed on the side of the electric drive housing 21 facing the flow channel plate 11. The first flow channel groove 110 and the second flow channel groove 120 are combined to form a connecting flow channel 30. The two ends of the connecting flow channel 30 are respectively connected to the internal flow channel of the flow channel plate 11 and the internal flow channel of the electric drive housing 21.

[0029] The electric drive is the core powertrain of new energy vehicles, including the electric drive housing 21, an external structural component with integrated internal coolant channels, i.e., internal flow channels. The thermal management integrated module 10 is a modular assembly integrating coolant circulation control functions. The flow channel plate 11 has a preset flow channel network inside, used to connect various functional components such as multi-way valves and water pumps, and guide the coolant to flow along a predetermined path between these components. The first surface 111 of the flow channel plate 11 is used to fix functional components such as multi-way valves and water pumps, and the first surface 112 is used to connect to the electric drive housing 21. This ensures that the installation of functional components and the docking between modules are located on both sides of the flow channel plate 11, achieving physical isolation between the functional surfaces and the docking surfaces, and avoiding mutual interference.

[0030] In this embodiment, key components in the thermal management integrated module 10 are integrated using the flow channel plate 11 as a carrier, further reducing the overall volume of the module; and through the flow channel groove splicing structure between the flow channel plate 11 and the electric drive housing 21, the coolant channel between the thermal management integrated module 10 and the electric drive system is directly connected. The design scheme of integrating the module into the electric drive optimizes the connection structure of the vehicle thermal management system and further improves the space utilization rate.

[0031] Specifically, the thermal management integrated module 10 is integrated and installed on the housing of the electric drive. The water pumps in the thermal management integrated module 10 include two battery water pumps, which provide driving force for the flow of coolant in the pipes and channels. Water pumps 13 are installed on the first surface 111 (such as the front) of the flow channel plate 11. Each water pump 13 is fixed with multiple (e.g., 4) self-tapping screws. The water pumps 13 and water valves are installed on the same side of the flow channel plate 11. The water valve is located between the two water pumps 13 and is connected to the water pumps 13 through an internal flow channel. The inlet of the water pump 13 is connected to the water valve. The water valve is a multi-port valve, which is a fluid control valve with multiple interfaces. The connection or disconnection between different interfaces is realized by switching the internal valve disc, thereby controlling the flow direction of coolant in different circuits. In a preferred embodiment of this application, the multi-port valve is an eight-port valve.

[0032] An open water channel structure is designed on the first surface 112 (such as the back side) of the flow channel plate 11, namely, an open first flow channel groove 110, which communicates with the internal flow channel of the flow channel plate 11. A matching open flow channel, namely a second flow channel groove 120, is designed on the electric drive housing 21, which communicates with the internal flow channel of the electric drive. The two flow channel grooves are located on the mating surfaces of the two mating parts, respectively. After the flow channel plate 11 is fixedly connected to the electric drive housing 21, the two grooves are aligned and joined together to form a complete connecting flow channel 30. One end of this connecting flow channel connects to the internal flow channel of the flow channel plate 11, and the other end connects to the internal flow channel of the electric drive housing 21. Therefore, without the use of any external connecting pipes, the coolant is directly connected between the heat pipe integrated module and the electric drive system through the connecting flow channel formed by the flow channel grooves opened on the two mating surfaces of the flow channel plate 11 and the electric drive housing 21, thereby reducing the number of pipes at the source. Furthermore, the flow channel connection can be completed simultaneously when the flow channel plate 11 is fixedly connected to the electric drive housing 21, thereby further reducing independent assembly steps. This solution also shortens the flow channel length, reduces circuit voltage drop and heat transfer, effectively improves system performance, and also reduces the risk of coolant leakage.

[0033] In one embodiment of this application, as Figure 4 As shown, the multi-way valve 12 includes a valve seat 121 and a valve cover 123. The valve seat 121 is integrated and installed on the first surface 111 of the flow channel plate 11. A sealing structure is provided between the multi-way valve 12 and the flow channel plate 11.

[0034] The valve seat 121 is a fixed base structure in the multi-way valve 12 that supports the rotation of the valve core 122 and provides an interface for the valve port flow. Multiple valve ports are provided on the valve seat 121, each corresponding to a coolant circuit interface. When the valve core 122 rotates within the valve seat 121, the flow direction of the coolant is controlled by switching the connection between different valve ports. (Reference) Figures 5 to 7The valve seat 121 is directly integrated with the flow channel plate 11, and the valve port on the valve seat 121 directly connects with the internal flow channel of the flow channel plate 11, thus forming the physical channel for coolant to enter and exit each circuit after the valve core 122 switches. During integrated installation, the valve seat 121 can be directly embedded into the mounting cavity of the flow channel plate 11, or the bottom surface of the valve seat 121 can be attached to the surface of the flow channel plate 11 to form a valve cavity. This reduces the number of valve seat 121 components and the height of the water valve on the module; it also further shortens the connection distance between the valve port and the internal flow channel of the flow channel plate 11, reducing the flow resistance caused by the flow channel transition.

[0035] A sealing structure is provided between the multi-way valve 12 (specifically the valve seat) and the flow channel plate 11, thereby preventing coolant leakage from the joint surface between the valve seat and the flow channel plate 11.

[0036] Specifically, refer to Figure 4 The sealing structure includes a first sealing element 14 sleeved on the valve cover 123, the first sealing element 14 being used to achieve radial sealing between the valve cover 123 and the valve seat 121.

[0037] The first sealing element 14 can be an O-ring. The eight-way valve and the flow channel plate 11 use an O-ring for radial sealing to prevent cross-flow between the valve cover and the valve seat, thus achieving external leakage protection. Specifically, the O-ring is fitted around the outer circumference of the valve cover 123, specifically within a sealing groove on the outer circumferential surface of the valve cover 123. Radial sealing refers to the sealing force acting in the radial direction. That is, after the valve cover 123 is installed on top of the valve seat 121, the O-ring is compressed in the annular gap between the outer diameter surface of the valve cover 123 and the inner diameter surface of the valve seat 121, forming a seal between the valve cover 123 and the inner wall of the valve seat 121. The O-ring forms a circumferential sealing isolation zone around the outer circumference of the valve cover 123, blocking the media from seeping out radially, thereby achieving the purpose of preventing external leakage.

[0038] Following the above embodiments, refer to Figure 4 The sealing structure further includes a second sealing element 15 assembled in the valve seat 121, the second sealing element 15 being used to achieve end face sealing between the flow channel plate 11 and multiple valve ports in the valve seat 121.

[0039] The second sealing element 15 can use a dynamic sealing gasket. The eight-way valve and the flow channel plate 11 use the end face of the dynamic sealing gasket for sealing, preventing leakage at the mating surface between the end face of each valve port in the valve seat 121 and the flow channel plate 11, thus achieving internal leakage protection. Specifically, the dynamic sealing gasket is installed in the sealing groove on the end face of the valve seat 121 facing the flow channel plate 11. When the valve seat 121 is integrated into the flow channel plate 11, the dynamic sealing gasket is pressed between the end face of the valve seat 121 and the surface of the flow channel plate 11, and is in an axial compression state. End face sealing means that the sealing force acts in the axial direction, and the dynamic sealing gasket forms a seal between the lower end face of the valve seat 121 and the upper end face (mating surface) of the flow channel plate 11. The multiple valve ports in the valve seat 121 correspond to different thermal management circuits. When the flow channel plate is in the closed position of a certain valve port, the medium may still flow from one valve port to another through the tiny gap between the flow channel plate and the end face of the valve port, causing internal leakage. Therefore, after the valve seat 121 is integrated and installed on the first surface 111 of the flow channel plate 11, the valve port on the valve seat 121 needs to be connected and circulated with the internal flow channel of the flow channel plate 11. There is a gap between the mating surfaces. The dynamic sealing gasket is set on the opposite side and arranged around the valve port to ensure that the flow channels are completely isolated when the valve port is closed, thereby achieving the purpose of preventing internal leakage.

[0040] The first sealing element 14 (O-ring) and the second sealing element 15 (dynamic gasket) respectively cover two different sealing interfaces inside the multi-way valve 12: the first sealing element 14 achieves radial static sealing between the valve cover 123 and the valve seat 121 to prevent external leakage at the mating surface; the second sealing element 15 achieves dynamic sealing of the end faces between each valve port in the valve seat 121 and the flow channel plate 11 to prevent cross-flow when different flow channels pass through the water valve, that is, to prevent internal leakage (cross-flow) between valve ports.

[0041] The two sets of seals are arranged in layers in space. The first seal 14 is located between the valve cover 123 and the valve seat 121, and the second seal 15 is located at the interface between each valve port and the flow channel plate 11 inside the valve seat 121. This forms a dual anti-leakage structure that prevents internal cross-flow and external leakage. It seals and isolates different leakage paths inside the multi-way valve 12, thereby ensuring the overall sealing reliability of the multi-way valve 12 when it is integrated and installed on the flow channel plate 11.

[0042] In one embodiment of this application, as Figure 2 and Figure 7 As shown, the first surface 112 of the flow channel plate 11 is provided with an annular sealing groove 16 on the outer periphery of the second flow channel groove 120; a static sealing gasket 17 is assembled in the annular sealing groove 16, and the static sealing gasket is used to seal the circumferential gap of the connecting flow channel formed after assembly.

[0043] In addition to the two-stage seal formed by the first sealing element 14 and the second sealing element 15, this embodiment of the application also includes a third-stage seal to solve the outermost sealing problem between the thermal management integrated module 10 and the electric drive system. Specifically, an annular sealing groove is formed on the first surface 112 (back side) of the flow channel plate 11, extending along the outer periphery of the second flow channel groove 120. That is, this sealing groove is set around the flow channel to assemble the static sealing gasket 17, which is used to seal the flow channel formed after the module and the electric drive are correctly installed. When the first surface 112 of the flow channel plate 11 is attached and fixed to the electric drive housing 21, the static sealing gasket 17 is axially compressed between the surface of the flow channel plate 11 and the surface of the electric drive housing 21, generating elastic force and tightly fitting the two mating surfaces to form a sealing band around the connecting flow channel. This achieves precise positioning sealing and facilitates the replacement of the static sealing gasket in the groove, enabling disassembly and maintenance.

[0044] The first flow channel 110 and the second flow channel 120 are combined to form a connecting flow channel. The two flow channel channels are located on the mating surfaces of the two components respectively. On the mating surfaces, the mating gaps on both sides of the connecting flow channel are sealed with static tightness gaskets. Thus, this integrated design further reduces the space occupied by the module in the front compartment, while eliminating some pipeline connections, shortening the flow channel, reducing loop pressure drop and heat transfer, and enhancing heat transfer efficiency.

[0045] In one embodiment of this application, as Figure 4 As shown, the multi-way valve 12 also includes a valve core 122 and an actuator 124; the valve core 122 is disposed between the valve cover and the valve seat 121, and the actuator 124 is fixed to the top of the valve cover 123. The actuator 124 is used to drive the valve core 122 to rotate to switch the connection state of different flow channels.

[0046] The valve seat 121 is integrated on the flow channel plate 11. The valve cover 123 and the valve seat 121 cooperate to form a valve cavity. The valve core 122 is disposed in the valve cavity formed between the valve cover 123 and the valve seat 121, and is used to switch the connection relationship between the valve ports. An actuator 124 is fixedly installed on the top of the valve cover 123 (the side away from the valve core 122) to provide rotational driving force, thereby driving the valve core 122 to rotate. Specifically, the valve seat 121 is provided with multiple valve ports, each corresponding to a different coolant circuit. When the actuator 124 receives a control signal from the thermal management integrated module 10, it drives the valve core 122 to rotate to a target angle position. At this target angle position, the flow channel structure of the valve core 122 selectively connects the corresponding valve ports on the valve seat 121, thereby allowing the coolant to flow according to a predetermined circuit path, realizing the flow channel switching under different thermal management modes.

[0047] In one embodiment of this application, as Figure 8As shown, the flow channel plate 11 and the electric drive housing 21 are fixedly connected by a positioning structure 18 and fasteners 19. The positioning structure 18 includes multiple positioning pins, which are used to limit the relative displacement between the flow channel plate 11 and the electric drive housing 21. The fasteners 19 include multiple screws, and the flow channel plate 11 is provided with multiple through-hole inserts that are adapted to the multiple screws. Each screw passes through the corresponding through-hole insert to lock the flow channel plate 11 to the electric drive housing 21.

[0048] The positioning structure 18 includes positioning pins and matching positioning holes. The outer diameter of the positioning pin and the inner diameter of the positioning pin hole can be interference-fitted. The number of positioning pins is at least two, and they can preferably be distributed at intervals along the outer periphery of the flow channel plate 11. When there are two positioning pins, the positioning constraint in the direction of the line connecting the two positioning pins is the strongest. Therefore, the direction of the line connecting the two positioning pins can be consistent with the direction with the highest alignment accuracy requirement of the first flow channel groove 110 and the second flow channel groove 120. For example, the two positioning pins are arranged diagonally on the product, and one of them is arranged next to a through-hole insert to facilitate the alignment of the through hole of the through-hole insert with the screw hole. Eleven through-hole inserts can be used to assemble the module onto the electric drive housing with eleven metric screws. After the first flow channel groove 110 on the flow channel plate 11 and the second flow channel groove 120 on the electric drive housing 21 are precisely aligned and assembled to form a connected flow channel, the flow channel plate 11 and the electric drive housing 21 are locked in the in-plane direction by the positioning pin to prevent misalignment between the two, thereby ensuring that the two flow channel grooves always maintain a precise alignment state.

[0049] The through-hole insert is embedded in the through hole of the flow channel plate 11 and fixedly connected to the body of the flow channel plate 11. The inner hole of the through-hole insert allows screws to pass through, and a flange face can also be provided at the upper end of the through-hole insert. After each screw passes through the corresponding through-hole insert, it is screwed into the threaded hole on the electric drive housing 21. After the screw is tightened, its head presses against the flange face of the through-hole insert, transmitting the clamping force to the body of the flow channel plate 11. This causes the first surface 112 of the flow channel plate 11 to fit tightly against the surface of the electric drive housing 21, thereby axially compressing the static sealing gasket assembled in the annular sealing groove to the designed compression amount, forming a reliable seal.

[0050] In one embodiment of this application, as Figure 1 As shown, the thermal management integrated module 10 also includes a water temperature sensor 201; the water temperature sensor 201 is fixed to the first surface 111 of the flow channel plate 11 by a buckle 202, and is used to detect the coolant temperature of the internal flow channel of the flow channel plate 11.

[0051] The internal flow channel of the flow channel plate 11 serves as a converging passage for coolant flow between the valve ports of the multi-way valve 12 and the inlet and outlet of the water pump 13. The outer periphery of the housing of the water temperature sensor 201 may be provided with claws, and the first surface 111 of the flow channel plate 11 is provided with a snap-fit ​​mounting seat adapted to the claws. Thus, when the water temperature sensor 201 is assembled, the claws spring into the slots on the mounting seat, achieving automatic locking. Alternatively, a snap-fit ​​can be provided on the water temperature sensor 201, and claws can be provided on the first surface 111 of the flow channel plate 11. The temperature sensing end of the water temperature sensor 201 passes through a sensor mounting hole opened on the flow channel plate 11 and extends into the internal flow channel of the flow channel plate 11 to detect the coolant temperature in the internal flow channel of the flow channel plate 11. The detected temperature signal is transmitted to the thermal management controller, which then adjusts the rotation angle of the valve core 122 of the multi-way valve 12 and the speed of the water pump 13 based on the temperature signal and a preset control strategy, thereby achieving closed-loop temperature control of the electric drive system and the battery system.

[0052] In one embodiment of this application, as Figure 2 As shown, the electric drive housing 21 has a docking through hole 113; one end of the connecting flow channel is connected to the internal flow channel of the flow channel plate 11 through the docking through hole 113, and the other end is connected to the internal flow channel of the electric drive housing 21 through the docking through hole 113.

[0053] A through hole 113 is formed on the electric drive housing 21, with one end connected to the internal flow channel of the electric drive housing 21 and the other end connected to the internal flow channel of the flow channel plate 11, thereby connecting the flow channel with the internal flow channel of the flow channel plate 11. The connecting flow channel includes multiple flow channels, with each valve port corresponding to an independent flow channel branch. Each flow channel is connected to the customer interface through two external interfaces. When the flow channel plate is rotated to a working position, a set of valve port connection schemes is selected, corresponding to a specific internal flow channel. That is, the selected flow channel and the customer flow channel form a closed loop flow channel, so that the coolant circulates in one direction, thereby carrying away the heat of high-temperature parts and heating low-temperature parts, realizing heat transfer.

[0054] In one embodiment of this application, as Figure 9 As shown, the flow channel plate 11 is provided with multiple general water circuit interfaces 114 and at least one VDA water circuit interface 115; the multiple general interfaces and at least one VDA water circuit interface are all connected to the internal flow channel of the flow channel plate 11 for external connection of the vehicle cooling pipeline.

[0055] A universal water interface 114 is located on the side wall or first surface 111 of the flow channel plate 11, connecting the internal flow channels of the flow channel plate 11 to the outside. A VDA water interface 115 is a VDA-compliant coolant quick-connect interface, also connecting the internal flow channels of the flow channel plate 11 to the outside. The VDA water interface is used to connect pipe sections in the vehicle's cooling system that use VDA standard connectors, such as battery cooling circuit pipes. By simultaneously providing both the universal water interface and the VDA water interface on the flow channel plate 11, a hybrid interface is formed, enabling the thermal management integrated module 10 to simultaneously meet the needs of standardized assembly and customized adaptation.

[0056] In one embodiment of this application, reference continues to be made to... Figure 5 The flow channel plate 11 includes an upper flow channel plate 101 and a lower flow channel plate 102; a first half-flow channel groove is formed on the lower surface of the upper flow channel plate 101, and a second half-flow channel groove is formed on the upper surface of the lower flow channel plate 102; after the upper flow channel plate 101 and the lower flow channel plate 102 are welded and fixed, the first half-flow channel groove and the second half-flow channel groove are combined to form the internal flow channel of the flow channel plate 11.

[0057] The flow channel plate 11 is composed of two layers: an upper flow channel plate 101 and a lower flow channel plate 102. The upper surface of the upper flow channel plate 101 forms the first surface 111 of the flow channel plate, which is used to fix and install functional components such as the multi-way valve 12, the water pump 13, and the water temperature sensor. The lower surface 102 of the lower flow channel plate forms the first surface 112 of the flow channel plate, which is used to fix the electric drive housing 21. A first half-flow channel groove is formed on the lower surface of the upper flow channel plate, and a second half-flow channel groove is formed on the upper surface of the lower flow channel plate. When the first half-flow channel groove and the second half-flow channel groove are aligned and joined together on the mating surface, the two half-flow channel grooves enclose a complete closed cross-section flow channel, which is the internal flow channel of the flow channel plate 11.

[0058] In one embodiment of this application, the electric drive housing 21 is provided with a client water channel interface 22, which is connected to the internal flow channel of the flow channel plate 11 through the connecting flow channel.

[0059] like Figure 10As shown, A represents the sealing area on the back of the product with the client. The client is the purchaser and user of the thermal management integrated module 10. The client's water interface 22 is located on the outer surface of the electric drive housing 21 and serves as the external connection port for the coolant. The coolant enters the electric drive housing 21 from the vehicle side pipeline via the client's water interface, passes through the guide channel inside the electric drive housing 21 to the second flow channel 120, enters the connecting flow channel formed by the first flow channel 110 and the second flow channel 120, and then passes through the docking through hole on the flow channel plate 11 to the internal flow channel of the flow channel plate 11, and finally reaches the valve port of the multi-way valve 12 and the inlet and outlet of the water pump 13. The numbers "3, 4, 5, 7" represent the pipe interface numbers. Several interfaces are located on the electric axle housing and are interconnected, and are connected to the flow channel plate. Figure 8 The corresponding numerical serial numbers in the module correspond one-to-one. This allows the thermal management integration module 10 to simultaneously adapt to three types of vehicle cooling pipelines: standardized VDA pipelines, general pipelines, and OEM-customized pipelines (via the client water interface), thus improving its adaptability.

[0060] Based on the same concept, this application also provides a vehicle thermal management system, including the thermal management integrated module 10 as described above. Thus, this thermal management system eliminates the external coolant piping between the module and the electric drive, reduces the size of the thermal management system, shortens the flow path length, reduces loop pressure drop and heat transfer, effectively improves system performance, and also reduces the risk of coolant leakage.

[0061] The basic concepts have been described above. Obviously, for those skilled in the art, the above disclosure is merely illustrative and does not constitute a limitation of this application. Although not explicitly stated herein, those skilled in the art may make various modifications, improvements, and corrections to this application. Such modifications, improvements, and corrections are suggested in this application, and therefore remain within the spirit and scope of the exemplary embodiments of this application.

[0062] Furthermore, this application uses specific terms to describe embodiments of the application. For example, "an embodiment," "one embodiment," and / or "some embodiments" refer to a particular feature, structure, or characteristic related to at least one embodiment of the application. Therefore, it should be emphasized and noted that "an embodiment," "one embodiment," or "an alternative embodiment" mentioned twice or more in different locations in this specification do not necessarily refer to the same embodiment. In addition, certain features, structures, or characteristics in one or more embodiments of the application can be appropriately combined.

[0063] In some embodiments, numbers describing the quantity of components and attributes are used. It should be understood that such numbers used in the description of embodiments are modified in some examples with the terms "approximately," "approximately," or "generally." Unless otherwise stated, "approximately," "approximately," or "generally" indicates that the numbers are allowed to vary by ±20%. Accordingly, in some embodiments, the numerical parameters used in the specification and claims are approximate values, which may be changed depending on the characteristics required by individual embodiments. In some embodiments, numerical parameters should take into account specified significant digits and employ a general method of digit reservation. Although the numerical ranges and parameters used to confirm their breadth of scope in some embodiments of this application are approximate values, in specific embodiments, such values ​​are set as precisely as feasible.

Claims

1. A thermal management integrated module, integrated on an electric drive, the electric drive including an electric drive housing, characterized in that, The thermal management integrated module includes: a flow channel plate, a multi-way valve, and a water pump; The multi-way valve and the water pump are fixed to the first side of the flow channel plate; The second side of the flow channel plate is fixedly connected to the electric drive housing, and a first flow channel groove is formed on the second side. A second flow channel groove is formed on the side of the electric drive housing facing the flow channel plate. The first flow channel and the second flow channel are joined together to form a connected flow channel, and the two ends of the connected flow channel are respectively connected to the internal flow channel of the flow channel plate and the internal flow channel of the electric drive housing.

2. The thermal management integrated module according to claim 1, characterized in that, The multi-way valve includes a valve seat and a valve cover. The valve seat is integrated and installed on the first side of the flow channel plate. A sealing structure is provided between the multi-way valve and the flow channel plate.

3. The thermal management integrated module according to claim 2, characterized in that, The sealing structure includes a first sealing element sleeved on the valve cover, the first sealing element being used to achieve a radial seal between the valve cover and the valve seat.

4. The thermal management integrated module according to claim 2, characterized in that, The sealing structure further includes a second sealing element assembled in the valve seat, the second sealing element being used to achieve end face sealing between the flow channel plate and multiple valve ports in the valve seat.

5. The thermal management integrated module according to claim 1, characterized in that, The second surface of the flow channel plate is provided with an annular sealing groove on the outer periphery of the second flow channel groove; The annular sealing groove is equipped with a static sealing gasket, which is used to seal the circumferential gap of the connecting flow channel formed after assembly.

6. The thermal management integrated module according to claim 2, characterized in that, The multi-way valve also includes a valve core and an actuator; The valve core is disposed between the valve cover and the valve seat, and the actuator is fixed to the top of the valve cover. The actuator is used to drive the valve core to rotate to switch the connection state of different flow channels.

7. The thermal management integrated module according to claim 1, characterized in that, The flow channel plate is fixedly connected to the electric drive housing by a positioning structure and fasteners; The positioning structure includes multiple positioning pins, which are used to limit the relative displacement between the flow channel plate and the electric drive housing.

8. The thermal management integrated module according to claim 7, characterized in that, The fastener includes a plurality of screws, and the flow channel plate is provided with a plurality of through-hole inserts that are adapted to the plurality of screws; Each screw passes through the corresponding through-hole insert to lock the flow channel plate to the electric drive housing.

9. The thermal management integrated module according to claim 1, characterized in that, The thermal management integrated module also includes a water temperature sensor; The water temperature sensor is fixed to the first side of the flow channel plate by a clip and is used to detect the temperature of the coolant in the internal flow channel of the flow channel plate.

10. The thermal management integrated module according to claim 1, characterized in that, The electric drive housing is provided with a through hole; One end of the connecting channel is connected to the internal channel of the channel plate through the docking through hole, and the other end is connected to the internal channel of the electric drive housing through the docking through hole.

11. The thermal management integrated module according to claim 1, characterized in that, The flow channel plate is provided with multiple general water circuit interfaces and at least one VDA water circuit interface; The multiple universal interfaces and at least one VDA water interface are all connected to the internal flow channels of the flow channel plate for external connection of the vehicle cooling pipeline.

12. The thermal management integrated module according to claim 1, characterized in that, The flow channel plate includes an upper flow channel plate and a lower flow channel plate; The lower surface of the upper flow channel plate is provided with a first half flow channel groove, and the upper surface of the lower flow channel plate is provided with a second half flow channel groove. After the upper flow channel plate and the lower flow channel plate are welded and fixed, the first half of the flow channel groove and the second half of the flow channel groove are combined to form the internal flow channel of the flow channel plate.

13. The thermal management integrated module according to claim 1, characterized in that, The electric drive housing is provided with a client water circuit interface, which is connected to the internal flow channel of the flow channel plate through the connecting flow channel.

14. A vehicle thermal management system, characterized in that, Includes the thermal management integrated module as described in any one of claims 1 to 13.

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