Integrated device, thermal management system and control method thereof

Abstract

The invention discloses an integrated device, a heat management system and a control method of the heat management system, the integrated device is provided with a bypass channel, a valve cavity and a valve port, the integrated device comprises a heat exchange assembly, a connecting assembly and a valve assembly, and the heat exchange assembly is provided with a first fluid inlet, a communicating port and a first heat exchange channel; the first fluid inlet communicates with the communicating opening through the part of the first heat exchange channel, the valve assembly comprises a valve element assembly, and at least part of the valve element assembly is located in the valve cavity. Wherein the valve port communicates with the bypass channel, the communicating port communicates with the valve cavity, and the valve element assembly can move in the direction close to or away from the valve port so as to adjust the communicating state of the communicating port and the valve port; in this way, the integrated device can bypass part of the first heat exchange channel through the bypass channel, and pressure loss generated when an oil medium passes through the integrated device can be reduced conveniently.

Description

Technical Field

[0001] The present invention relates to the technical field of heat exchange, and in particular to an integrated device, a thermal management system and a control method thereof. Background Art

[0002] The thermal management system includes a heat exchange device, and the working medium in the thermal management system will pass through the internal flow path of the heat exchange device. The thermal management system may encounter a variety of different environments during operation. For example, when the working medium in the thermal management system is at a low temperature, for example, when the working medium is oil, the viscosity of the oil is greater at a lower temperature, and the flow resistance of the working medium through the internal flow path of the thermal device is greater, which is easy to cause a large pressure loss. Summary of the invention

[0003] The object of the present invention is to provide an integrated device, a thermal management system and a control method thereof, which are convenient for bypassing part of the first heat exchange channel through the bypass channel, thereby reducing the pressure loss of the working fluid of the integrated device in a low-temperature environment, and the integrated device has a high degree of integration, which is convenient for reducing the occupied space of the integrated device and the thermal management system.

[0004] On the one hand, an embodiment of the present invention provides an integrated device, which has a bypass channel, a valve cavity and a valve port, and the integrated device includes a heat exchange component, a connecting component and a valve core component. The heat exchange component has a first fluid inlet, a connecting port and a first heat exchange channel, the first fluid inlet is connected to the connecting port through a portion of the first heat exchange channel, the connecting component is sealed and connected to the heat exchange component, the connecting component covers the connecting port, the connecting component forms at least a portion of the wall of the bypass channel, and the connecting component forms at least a portion of the wall of the valve cavity, and at least a portion of the valve core component is located in the valve cavity; wherein the valve port is connected to the bypass channel, the connecting port is connected to the valve cavity, and the valve core component can move toward or away from the valve port to adjust the connection state between the connecting port and the valve port.

[0005] According to the integrated device provided by the embodiment of the present invention, the connecting assembly forms at least a portion of the wall of the bypass channel and the valve cavity, at least a portion of the valve core assembly is located in the valve cavity, the connecting assembly is sealed and connected to the heat exchange assembly, and the valve cavity is connected to the connecting port, which is convenient for improving the integration of the integrated device and is beneficial for reducing the space occupied by the integrated device; further, by setting the valve port to be connected to the bypass channel, and the connecting port to be connected to the valve cavity, the valve core assembly can be moved toward or away from the valve port to adjust the connection state between the connecting port and the valve port. When the integrated device is applied to a thermal management system and the fluid temperature in the thermal management system is low, the connecting port and the valve port can be connected by controlling the valve core assembly. At this time, the bypass channel can bypass part of the first heat exchange channel, which is convenient for reducing the pressure loss of the oil medium when passing through the integrated device.

[0006] On the other hand, an embodiment of the present invention further provides a thermal management system, including an oil pump and the above-mentioned integrated device, wherein the oil pump has a first pump port, and the first pump port is connected to the first fluid inlet.

[0007] According to the thermal management system provided by the embodiment of the present invention, the valve port is connected to the bypass channel by setting the connecting port to the valve cavity, and the valve core assembly can move toward or away from the valve port to adjust the connection state between the connecting port and the valve port. When the fluid temperature in the thermal management system is low, the valve core assembly can be controlled to enable the bypass channel to bypass the first fluid inlet, so that the oil medium entering from the inlet channel enters the bypass channel, thereby reducing or avoiding the oil medium from entering the heat exchange component through the first fluid inlet, thereby reducing the pressure loss of the oil medium when passing through the integrated device, thereby reducing the power consumption of the oil pump.

[0008] On the other hand, an embodiment of the present invention further provides a control method for a thermal management system, which is used to control the above-mentioned thermal management system, wherein the thermal management system includes a first branch, the first branch is located upstream of the oil pump, and the channel in the first branch is connected to the channel in the oil pump, and the control method includes: comparing the fluid temperature in the first branch with a temperature threshold to obtain a comparison result; and controlling the valve core assembly to move toward or away from the valve port according to the comparison result to adjust the connection state between the connecting port and the valve port.

[0009] According to the control method of the thermal management system provided by an embodiment of the present invention, a comparison result is obtained by comparing the fluid temperature in the first branch with the temperature threshold, and the valve core assembly is controlled to move toward or away from the valve port according to the comparison result to adjust the connection state between the connecting port and the valve port, so that the integrated device can control the valve core assembly according to the fluid temperature in the first branch, thereby facilitating better operation of the thermal management system in a variety of different environments and reducing the loss of oil medium. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 is a schematic block diagram of a thermal management system provided by an embodiment of the present invention;

[0011] Figure 2 is a schematic diagram of the exploded structure of an integrated device provided by an embodiment of the present invention;

[0012] Figure 3 is a schematic diagram of the three-dimensional structure of an integrated device provided by an embodiment of the present invention;

[0013] Figure 4 yes Figure 3 A schematic cross-sectional view of an integrated device at one position is shown in FIG.

[0014] Figure 5 yes Figure 2 A schematic cross-sectional view of a valve assembly is shown in FIG.

[0015] Figure 6 yes Figure 3 A partial cross-sectional structural schematic diagram of an integrated device at another position shown in FIG.

[0016] Figure 7 yes Figure 2 A three-dimensional structural schematic diagram of a connecting piece is shown in FIG.

[0017] Figure 8 yes Figure 2 A schematic diagram of a cross-sectional structure of a valve body is shown in FIG.

[0018] Fig. 9 is a schematic diagram of the exploded structure of an integrated device provided by another embodiment of the present invention;

[0019] Fig.10 yes Fig. 9 A schematic diagram of a three-dimensional structure of an integrated device shown in FIG.

[0020] Fig.11 yes Fig.10 A schematic cross-sectional structure diagram of an integrated device at one position shown in FIG.

[0021] Fig.12 yes Fig.10 A schematic diagram of a three-dimensional structure of a valve body is shown in FIG.

[0022] Fig.13 yes Fig.10 A schematic diagram of a three-dimensional structure of a clamping member is shown in FIG.

[0023] Fig.14 yes Fig.10 A schematic cross-sectional structure diagram of an integrated device at another position shown in FIG.

[0024] Fig.15 It is a flowchart diagram of a control method for a thermal management system provided by an embodiment of the present invention.

[0025] Reference numerals:

[0026] 1. Integrated device; 101. Bypass channel; 102. Valve cavity; P1. First fluid inlet; P2. First fluid outlet; P3. Communication port; P4. Valve port; 10. Heat exchange assembly; 11. First side plate; 12. Second side plate; 13. Heat exchange core; 131. Heat exchange plate; 141. First heat exchange channel; 142. Second heat exchange channel; TD1. First corner hole channel; TD2. Second corner hole channel; TD3. Inter-plate channel; 15. Pipe connection; 20. Connecting assembly; 23. Connector; 231. First mounting portion; 232. Second mounting portion; 24. Valve body; 241. Communication channel; 242 , snap-fitting part; 244, limiting hole; 245, limiting groove; 30, valve assembly; 31, valve core assembly; 311, valve stem; 32, drive assembly; 321, drive shell; 322, coil assembly; 323, moving iron core; 324, static iron core; 325, elastic member; 33, snap-fitting part; 331, limiting part; 332, main body; 34, first sealing member; 35, isolation cover; 36, balancing hole; 37, balancing chamber; 38, second sealing member; 39, third sealing member; 2, thermal management system; 40, first branch; 50, oil pump; 51, first pump port; 52, second pump port; 61, electric drive device. DETAILED DESCRIPTION

[0027] The features and exemplary embodiments of various aspects of the present invention will be described below. In order to make the purpose, technical solutions and advantages of the present invention more clear, the present invention will be further described below in conjunction with the accompanying drawings and specific embodiments. In this article, relational terms such as "first" and "second" are only used to distinguish one component with the same name from another, and do not necessarily require or imply any such actual relationship or order between these components.

[0028] like Figures 1 to 4 As shown, a thermal management system is usually provided in vehicles and other transportation vehicles. The thermal management system includes a heat exchanger. Two heat exchange fluids can flow in the heat exchanger. The two heat exchange fluids flow in their respective corresponding flow channels and the two heat exchange fluids can achieve heat exchange. Optionally, the two heat exchange fluids can be cooling water and oil, etc., respectively. The heat exchanger provided in the thermal management system can exchange heat for structures such as the electric drive device in the vehicle. However, when the vehicle is just started and / or when the vehicle is running in a cold environment, the fluid temperature is low. For example, the viscosity of the medium oil is high when the temperature is low. At this time, the flow resistance of the oil when passing through the heat exchanger will be very large, resulting in a large pressure loss. When the oil passes through the heat exchanger, the oil and the cooling water achieve heat exchange, which is not conducive to the rapid rise of the fluid temperature to the optimal operating temperature of the electric drive device.

[0029] To improve the above problems, Figure 1As shown, an embodiment of the present invention provides a thermal management system 2, which includes a first branch 40, an oil pump 50, an integrated device 1 and an electric drive device 61. The oil pump 50 has a first pump port 51 and a second pump port 52. The first pump port 51 can be the outlet of the oil pump 50, and the second pump port 52 can be the inlet of the oil pump 50. The outlet of the first branch 40 can be connected to the inlet of the oil pump 50, and the outlet of the oil pump 50 can be connected to the inlet channel of the integrated device 1, and the outlet channel of the integrated device 1 can be connected to the electric drive device 61. Among them, the first branch 40 can include devices such as an oil tank, and the electric drive device 61 can include an electric drive device such as an engine. In this article, for example, the two openings of the outlet of the first branch 40 and the inlet of the oil pump 50 are connected, which can mean that the mouths where the two openings are located are directly sealed and connected to each other, or the two openings are connected through other connecting blocks or pipelines, wherein the mouths where the openings are located include the openings and the wall surface defining the openings.

[0030] The integrated device 1 in the embodiment of the present invention has a bypass channel 101, and the integrated device 1 includes a heat exchange assembly 10 and a valve assembly 30. The heat exchange assembly 10 has a first heat exchange channel 141 and a second heat exchange channel 142. For example, a first fluid such as a medium oil can flow through the first heat exchange channel 141, and a second fluid such as a refrigerant can flow through the second heat exchange channel 142. The valve assembly 30 includes a valve core assembly 31, and at least part of the first heat exchange channel 141 can be bypassed by controlling the action of the valve core assembly 31. At this time, the first heat exchange channel 141 and the bypass channel 101 are arranged in parallel. Through the above arrangement, when the vehicle is just started and / or when the vehicle is running in a cold environment, the action of the valve core assembly 31 is controlled to bypass at least part of the first heat exchange channel 141, so that at least part of the medium oil can pass through the bypass channel 101, reduce or avoid the medium oil from passing through the heat exchange assembly 10 for heat exchange, and reduce the oil consumption of the medium oil, which is conducive to reducing the driving force of the oil pump 50.

[0031] In some embodiments, the thermal management system 2 further includes a refrigerant branch, the channel in the refrigerant branch is connected to the second heat exchange channel 142 in the heat exchange assembly 10, the fluid in the second heat exchange channel 142 does not interact with the fluid in the first heat exchange channel 141, and the fluid in the second heat exchange channel 142 can exchange heat with the fluid in the first heat exchange channel 141. Through the above arrangement, the fluid in the second heat exchange channel 142 can cool the fluid in the first heat exchange channel 141, so that the fluid such as the dielectric oil flowing out of the first heat exchange channel 141 dissipates heat for the electric drive device 61.

[0032] In order to reduce the occupied space of the thermal management system 2 and facilitate the function of bypassing at least part of the first heat exchange channel 141, please refer to Figures 2 to 8The embodiment of the present invention further provides an integrated device 1, which has a bypass channel 101, a valve cavity 102 and a valve port P4. The integrated device 1 includes a heat exchange component 10, a connection component 20 and a valve component 30. The connection component 20 is sealed and connected to the heat exchange component 10 to prevent fluid leakage between the connection component 20 and the heat exchange component 10. The connection component 20 forms at least part of the wall of the bypass channel 101, and the connection component 20 forms at least part of the wall of the valve cavity 102. The valve component 30 includes a valve core component 31, at least part of the valve core component 31 is located in the valve cavity 102, and the valve core component 31 can move toward or away from the valve port P4.

[0033] The heat exchange assembly 10 has a first fluid inlet P1, a communication port P3 and a first heat exchange channel 141. The first fluid inlet P1 is connected to the communication port P3 through a portion of the first heat exchange channel 141. For example, Figure 4 As shown, the first fluid inlet P1 is located upstream of the connecting port P3, the first heat exchange channel 141 includes a first corner hole channel TD1, the first fluid inlet P1 is connected to the connecting port P3 through the first corner hole channel TD1, and at least part of the connecting component 20 and at least part of the valve component 30 are located on the side of the heat exchange component 10 away from the first fluid inlet P1. The connecting component 20 covers the connecting port P3, wherein the valve port P4 is connected to the bypass channel 101, the connecting port P3 is connected to the valve cavity 102, and the valve core component 31 can move toward or away from the valve port P4 to adjust the connection state between the connecting port P3 and the valve port P4. Through the above arrangement, when the integrated device 1 is applied to the thermal management system 2, and the fluid temperature in the thermal management system 2 is low, the connecting port and the valve port can be connected by controlling the relative movement of the valve core component 31 and the valve port P4, and at this time, the bypass channel can bypass part of the first heat exchange channel, so as to reduce the pressure loss of the oil medium when passing through the integrated device.

[0034] To facilitate the circulation of the medium oil in the integrated device 1, in some embodiments, the heat exchange assembly 10 further has a first fluid outlet P2, the first fluid inlet P1 and the first fluid outlet P1 are located on the outer surface of the integrated device 1, and the fluid can enter the integrated device 1 through the first fluid inlet P1 and flow out of the integrated device from the first fluid outlet P2. The first heat exchange channel 141 also includes a second corner hole channel TD2 and an inter-plate channel TD3, the inter-plate channel TD3 connects the first corner hole channel TD1 and the second corner hole channel TD2, the first fluid inlet P1 is connected to the connecting port P3 through the first corner hole channel TD1, the first fluid outlet P2 is located downstream of the connecting port P3, and the first fluid outlet P2 is connected to the second corner hole channel TD2.

[0035] Based on this, the integrated device 1 has a first working mode, as shown in Figure 3, in the first working mode, there is a gap between the valve core assembly 31 and the wall defining the valve port P4, the connecting port P3 is connected to the valve port P4, the first fluid inlet P1 is connected to the first fluid outlet P2 through the first corner hole channel TD1, the second corner hole channel TD2 and the inter-plate channel TD3, and the first fluid inlet P1 is also connected to the first fluid outlet P2 through the first corner hole channel TD1, the connecting port P3, the valve cavity 102, the valve port P4, the bypass channel 101, and the second corner hole channel TD2. At this time, the bypass channel 101 and the inter-plate channel TD3 are arranged in parallel. Through the above arrangement, when the medium oil flows into the heat exchange assembly 10, due to the large flow resistance of the inter-plate channel TD3 and the small flow resistance of the valve cavity 102 and the bypass channel 101, most of the medium oil will flow into the valve cavity 102, and flow from the bypass channel 101 to the second corner hole channel TD2, and then flow out from the first fluid inlet P1. Since the bypass channel 101 is arranged in parallel with the inter-plate channel TD3 , the flow resistance of the integrated device 1 is reduced in the first working mode of the integrated device 1 , which is beneficial to reducing the driving power consumption of the oil pump 50 .

[0036] As shown in FIG3 , in a specific implementation, the valve core assembly 31 moves in a direction away from the valve port P4 so that there is a gap between the valve core assembly 31 and the wall defining the valve port P4. At this time, the valve port P4 is connected to the connecting port P3, so that the first angle hole channel TD1 is connected through the connecting port P3, the valve port P4 and the bypass channel 101. Further, the valve core assembly 31 includes a valve stem 311, a valve core part and an elastic part. The valve core part and the valve stem 311 are an integral structure. The elastic part is limitedly arranged on the valve core part or the two are an integral structure. The elastic part can be squeezed and deformed so that the elastic part can abut against the wall defining the valve port P4.

[0037] Combination Figures 4 to 8In some embodiments, the heat exchange assembly 10 includes a first side plate 11, a second side plate 12 and a heat exchange core 13. The first side plate 11 and the second side plate 12 are arranged along the height direction of the heat exchange assembly 10. At least part of the heat exchange core 13 is located between the first side plate 11 and the second side plate 12. The heat exchange core 13 includes heat exchange plates 131 stacked along the height direction of the heat exchange assembly 10. The stacking direction of the heat exchange plates 131 is parallel to or coincides with the height direction of the heat exchange assembly 10. The first fluid inlet P1 and the first fluid outlet P2 are located on the first side plate 11; the connecting assembly 20 includes a valve body 24 and a connecting member 23 that are sealed. The valve body 24 defines at least part of the wall of the valve cavity 102. The valve body 24 may also include a connecting channel 241. The connecting channel 241 connects the valve port P4 with the bypass channel 101, wherein the connecting channel 241 may be an L-shaped channel. The connecting member 23 and the second side plate 12 are sealed to jointly define at least part of the bypass channel 101. Optionally, the valve body 24 may be made of plastic, the connector 23 may be made of metal, and the valve body 24 may be connected and sealed to the connector 23 by brazing. In other embodiments, the valve body 24 and the connector 23 may be made of the same material, and the two may be an integral part.

[0038] Combination Figure 1 In some embodiments, the heat exchange assembly 10 further includes a second heat exchange channel 142. In the heat exchange assembly 10, the second heat exchange channel 142 is fluidically isolated from the first heat exchange channel 141, that is, in the heat exchange assembly 10, the second heat exchange channel 142 is not connected to the first heat exchange channel 141. The heat exchange assembly 10 further includes a connecting pipe 15, which is sealed with the second side plate 12 or the connecting member 23. The connecting pipe 15 has a channel that is connected to the second heat exchange channel 142, and the coolant can flow into or out of the integrated device 1 from the connecting pipe 15. Along the height direction of the heat exchange assembly 10, at least part of the connecting assembly 20 and at least part of the connecting pipe 15 are located at the same height. By arranging at least part of the connecting assembly 20 and the connecting pipe 15 on the same side of the height direction of the heat exchange assembly 10, it is convenient to reduce the space occupied by the integrated heat exchange device 1.

[0039] Further integration Figures 4 to 7 As shown, in some embodiments, the connecting member 23 is covered on the outer peripheral side of the second side plate 12, a portion of the connecting member 23 is located at the same height as the second side plate 12, and a portion of the connecting member 23 is sealed with the heat exchange plate 131 to define a portion of the wall of the first corner hole channel TD1 and / or a portion of the wall of the second corner hole channel TD2.

[0040] In the specific implementation, along the height direction perpendicular to the heat exchange assembly 10, the second side plate 12 is located in the middle position of the heat exchange assembly 10, and the heat exchange plate adjacent to the second side plate 12 is defined as the first heat exchange plate. The second side plate 12 and the first heat exchange plate can be sealed by welding. The connector 23 is covered on the outer peripheral side of the second side plate 12, and part of the connector 23 and the first heat exchange plate can be sealed by welding. Through the above arrangement, it is convenient to reduce the thickness of the integrated device 1. Optionally, as shown in Figure 3, along the circumferential direction of the first corner hole channel TD1, the connector 23 is sealed and connected to the first heat exchange plate throughout the circumference, and along the circumferential direction of the second corner hole channel TD2, one part is the connector 23 and the first heat exchange plate are sealed and connected, and the other part is the second side plate 12 and the first heat exchange plate are sealed and connected. At this time, the connecting member 23 may include a first mounting portion 231 and a second mounting portion 232 , wherein one connecting pipe portion 15 is limitedly disposed and sealed with the first mounting portion 231 , and the other connecting pipe portion 15 is limitedly disposed and sealed with the second mounting portion 232 .

[0041] Alternatively, in other embodiments, the second side plate 12 is stacked to the side of the first heat exchange plate away from the first side plate 11, and along the circumferential direction of the first corner hole channel TD1 and the circumferential direction of the second corner hole channel TD2, the second side plate 12 and the first heat exchange plate are sealed and connected, and along the height direction of the heat exchange assembly 10, the connecting member 23 is located on the side of the second side plate 12 away from the first side plate 11.

[0042] To realize the movement of the valve core assembly 31, the valve assembly 30 also includes a drive assembly 32. The drive assembly 32 includes a drive member, which may be a motor; or a combination of a motor and a reduction mechanism; or a combination of a motor and a screw rod; or an electromagnetic drive member.

[0043] To achieve the limit setting of the drive assembly 32, in some embodiments, combined with Figures 2 to 8 As shown, the valve assembly 30 further includes a clamping member 33, and the driving assembly 32 includes a driving shell 321. One of the driving shell 321 and the valve body 24 is embedded in the other, and the driving shell 321 is sealed with the valve body 24. The clamping member 33 penetrates the valve body 24 and the driving shell 321, and the valve body 24 and the driving shell 321 are connected through the clamping member 33. In order to limit the position of the clamping member 33, a clamping portion 242 is further provided in the valve body 24. When the clamping member 33 penetrates the valve body 24 and the driving shell 321, the clamping member 33 is clamped by the clamping portion 242 to prevent the clamping member 33 from coming out.

[0044] In a specific implementation, the drive assembly 32 also includes a coil assembly 322, a static iron core 324, an elastic member 325 and a moving iron core 323. The coil assembly 322 is located in the space defined by the drive shell 321 or the coil assembly 322 and the drive shell 321 are an integral injection molded structure. At least part of the moving iron core 323 is located on the inner circumference of the coil assembly 322. The valve core assembly 31 includes a valve stem. The moving iron core 323 and the valve stem are an integral structure or a limit setting. The moving iron core 323 can move toward or away from the static iron core 324. The elastic member 325 can be a spring. The elastic member 325 is located between the moving iron core 323 and the static iron core 324, so that the coil assembly 322 can drive the moving iron core 323 to reset when the power is off.

[0045] To prevent fluid from entering the area where the coil assembly 322 is located and causing damage to the coil assembly 322 , in some embodiments, the drive assembly 32 also includes an isolation cover 35 , which is sealed to the drive shell 321 , and at least a portion of the isolation cover 35 is located between the moving iron core 323 and the coil assembly 322 .

[0046] Furthermore, the valve assembly 30 may also include a first seal 34 , which is located between the moving iron core 323 and the drive housing 321 , or between the valve core assembly 31 and the drive housing 321 , so as to improve the sealing performance of the valve assembly 30 .

[0047] In order to reduce the valve opening pressure of the valve assembly 30, the valve assembly 30 also has a balancing hole 36 and a balancing chamber 37. The balancing chamber 37 is located on the side of the first sealing member 34 away from the valve chamber 102. As shown in Figure 4, part of the balancing chamber 37 is located between the isolation cover 35 and the moving iron core 323. The balancing hole 36 connects the bypass channel 101 with the balancing chamber 37.

[0048] To further prevent fluid leakage, in some embodiments, the valve assembly 30 further includes a second seal 38 and a third seal 39 , wherein the second seal is sandwiched between the drive housing 321 and the valve body 24 , and the third seal is sandwiched between the isolation cover 35 and the drive housing 321 .

[0049] In some embodiments, the bypass channel 101 and the first heat exchange channel 141 are both connected to the first fluid outlet P2. In order to realize the heat exchange function of the integrated device 1, the integrated device 1 also has a second working mode. In the second working mode, the valve core assembly 31 abuts against the wall that defines the valve port P4, and the first fluid inlet P1 is connected to the first fluid outlet P2 through the first heat exchange channel 141.

[0050] Furthermore, in order to reduce the number of parts and save costs, the structure of the integrated device 1 is simplified. Figures 9 to 14 As shown, in some embodiments, the present invention also provides an integrated device 1, the structure of the integrated device 1 is similar to Figures 2 to 8The heat exchange integrated structures shown are similar, with at least the difference being that the structures of the connector 23 and the valve body 24 are different.

[0051] Specifically, combined Figures 9 to 14 In an embodiment of the present invention, the connection assembly 20 includes a sealingly connected connector 23 and a valve body 24. The connector 23 is a transfer tube structure. For example, the connector 23 can be a bent tube structure. The connector 23 defines the wall of the bypass channel 101. The valve port P4 can be located at the connector 23 or the valve body 24. The connector 23 and the valve body 24 are filled with solder and then welded. The valve body 24 and the heat exchange assembly 10 can be riveted and then welded.

[0052] Specifically, in Figures 9 to 14 In the integrated device 1 shown, the second side plate 12 has a connecting port P3 and a transfer port P8, the connecting port P3 is connected to the first fluid inlet P1 through the first corner hole channel TD1, the transfer port P8 is connected to the first fluid outlet P2 through the second corner hole channel TD2, and one end of the bypass channel 101 can be connected to the valve port P4, and the other end is connected to the transfer port P8.

[0053] Furthermore, combined with Figures 9 to 14 The integrated device 1 also includes a drive component 32, which is connected to Figures 2 to 8 The structures shown are similar, and similar structures are not described again. The two integrated devices 1 differ at least in that the drive assembly 32 includes a drive shell 321. To achieve the limit position between the drive assembly 32 and the valve body 24, in some embodiments, a portion of the drive shell 321 is sleeved inside the valve body 24, and the integrated device 1 includes a clamping member 33, which connects the drive shell 321 and the valve body 24 in a limit position.

[0054] In a specific implementation, the valve body 24 includes a limiting groove 245 and at least two limiting holes 244. The limiting groove 245 extends from the outer peripheral surface of the valve body 24 to the inside of the valve body 24. The limiting holes 244 penetrate the inner wall of the valve body 24 from the bottom wall of the limiting groove 245. The limiting holes 244 penetrate the peripheral wall of the valve body 24, and the limiting holes 244 are arranged along the outer peripheral wall of the valve body 24. Correspondingly, the clamping member 33 includes a limiting portion 331 and a main body 332. The inner wall surface of the limiting portion 331 is closer to the center of the clamping member 33 than the inner wall surface of the main body 332. The main body 332 is limited in the limiting groove 245, and the limiting portion 331 passes through the limiting hole 244 and abuts against the outer wall of the drive shell 321.

[0055] In the embodiment of the present invention, a bypass channel is provided on the flow path side of the first fluid, and / or, in some other embodiments, a bypass channel with a similar structure may also be provided on the flow path side of the second fluid.

[0056] In summary, according to the integrated device 1 provided by the embodiment of the present invention, the connecting component 20 forms at least part of the wall of the bypass channel 101 and the valve cavity 102, the valve core component 31 included in the valve component 30 is located in the valve cavity 102, the connecting component 20 is sealed and connected to the heat exchange component 10, and the valve cavity 102 is connected to the connecting port P3, which is convenient for improving the integration of the integrated device 1, reducing the pipeline arrangement between the valve component 30 and the heat exchange component 10, and is conducive to reducing the space occupied by the integrated device 1; further, by setting the valve port P4 to be connected to the bypass channel 101, the connecting port P3 is connected to the valve cavity, and the valve core component 31 can move toward or away from the valve port P4 to adjust the connection state of the connecting port P3 and the valve port P4. When the integrated device 1 is applied to the thermal management system 2, and the fluid temperature in the thermal management system 2 is low, by controlling the valve core component 31, the connecting port P3 and the valve port P4 can be connected. At this time, the bypass channel 101 can bypass part of the first heat exchange channel 141, which is convenient for reducing the pressure loss of the oil medium when passing through the integrated device 1.

[0057] On the other hand, an embodiment of the present invention further provides a control method of a thermal management system, which is used to control the thermal management system 2 of any of the above embodiments, wherein the thermal management system 2 includes a first branch 40, the first branch 40 is located upstream of the oil pump 50, and the channel in the first branch 40 is connected to the channel in the oil pump 50, and the control method of the thermal management system includes:

[0058] S110, comparing the temperature of the fluid in the first branch 40 with the temperature threshold to obtain a comparison result;

[0059] S120 , controlling the valve core assembly 31 to move toward or away from the valve port P4 according to the comparison result, so as to adjust the communication state between the communication port P3 and the valve port P4 .

[0060] In some embodiments, before step S110, a step of detecting the temperature of the fluid in the first branch 40 may be further included. Optionally, the temperature threshold may be 40°C. When the temperature of the fluid in the first branch 40 is less than or equal to 40°C, the fluid temperature is relatively low, and the electric drive device 61 may be heat exchanged. At this time, the oil medium may not need to pass through the heat exchange component 10 to exchange heat with the oil medium. When the fluid temperature exceeds 40°C, the fluid temperature is relatively high, and the oil medium needs to be cooled by the heat exchange component 10 before the electric drive device 61 can be better cooled. In some other specific embodiments, the temperature threshold may be set according to user needs, for example, it may be 35°C, 30°C, 41°C, 42°C, etc., and the present invention is not limited thereto.

[0061] The first branch 40 includes a structure such as an oil tank, and the medium oil is stored in the oil tank. By comparing the fluid temperature in the first branch 40 with the temperature threshold, the valve core assembly 31 can be better controlled according to the operating environment of the vehicle, thereby cooling or not cooling the fluid temperature, improving the pressure loss of the oil medium, and facilitating the reduction of the driving force of the oil pump 50.

[0062] Exemplarily, the first branch 40 may also include a temperature sensor, which can be used to detect the fluid temperature in the first branch 40. For example, the temperature sensor can detect the fluid temperature of the fuel tank. The temperature sensor can feed back the detected fluid temperature result to the electronic control unit (ECU), where the electronic control unit can be a control system of an automobile engine, and the ECU controls the action of the valve core assembly 31 to facilitate improving the response speed of the valve core assembly 31.

[0063] In some embodiments, the control method includes: comparing the fluid temperature in the first branch 40 with the temperature threshold, obtaining a first comparison result that the fluid temperature in the first branch 40 is less than or equal to the temperature threshold; and controlling the valve core assembly 31 to move to a gap between the valve core assembly 31 and the wall defining the valve port P4 according to the first comparison result. Through the above arrangement, when the vehicle is just started or running in a cold environment, the fluid temperature in the first branch 40 is relatively low, which can prevent or reduce the oil medium from entering the heat exchange assembly 10, facilitate rapid increase of the fluid temperature, and reduce the loss of the oil pump 50.

[0064] Furthermore, the control method of the thermal management system includes: comparing the fluid temperature in the first branch 40 with the temperature threshold, obtaining a second comparison result that the fluid temperature in the first branch 40 is greater than the temperature threshold; and controlling the valve core assembly 31 to move to the point where the valve core assembly 31 abuts against the wall defining the valve port P4 according to the second comparison result. Through the above arrangement, the medium oil flowing in from the first fluid inlet P1 can pass through the first heat exchange channel 141, and the medium oil can exchange heat with the fluid flowing in the second heat exchange channel 142, and then the medium oil flows out from the second fluid outlet P2 and flows to the electric drive device 61, so as to facilitate cooling the electric drive device 61.

[0065] It should be noted that the above embodiments are only used to illustrate the present invention and are not intended to limit the technical solutions described in the present invention, such as the directional definitions of "front", "back", "left", "right", "up" and "down". Although the present invention has been described in this specification with reference to the above embodiments, it should be understood by those skilled in the art that the present invention can still be modified, combined or replaced by equivalents, and all technical solutions and improvements thereof that do not depart from the spirit and scope of the present invention should be included in the scope of the claims of the present invention.

Claims

1. An integrated device (1), characterized in that: The integrated device (1) has a bypass channel (101), a valve cavity (102) and a valve port (P4), and comprises a heat exchange component (10), a connection component (20) and a valve core component (31). The heat exchange component (10) has a first fluid inlet (P1), a communication port (P3) and a first heat exchange channel (141). The first fluid inlet (P1) is connected to the communication port (P3) through a portion of the first heat exchange channel (141). The connection component (20) is sealedly connected to the heat exchange component (10). The connection component (20) covers the communication port (P3). The connection component (20) forms at least a portion of the wall of the bypass channel (101), and the connection component (20) forms at least a portion of the wall of the valve cavity (102). At least a portion of the valve core component (31) is located in the valve cavity (102). The valve port (P4) is connected to the bypass channel (101), the communication port (P3) is connected to the valve cavity (102), and the valve core assembly (31) can move toward or away from the valve port (P4) to adjust the connection state between the communication port (P3) and the valve port (P4).

2. The integrated device (1) according to claim 1, characterized in that The first heat exchange channel (141) comprises a first corner hole channel (TD1), the first fluid inlet (P1) is connected to the connecting port (P3) through the first corner hole channel (TD1), and the valve core assembly (31) and the connecting assembly (20) are located on a side of the heat exchange assembly (10) away from the first fluid inlet (P1).

3. The integrated device (1) according to claim 2, characterized in that The heat exchange component (10) further comprises a first fluid outlet (P2), the first heat exchange channel (141) further comprises a second corner hole channel (TD2) and an inter-plate channel (TD3), the inter-plate channel (TD3) connects the first corner hole channel (TD1) and the second corner hole channel (TD2), the first fluid inlet (P1) is connected to the communication port (P3) through the first corner hole channel (TD1), the first fluid outlet (P2) is located downstream of the communication port (P3), and the first fluid outlet (P2) is connected to the second corner hole channel (TD2); The integrated device (1) has a first working mode. In the first working mode, the first fluid inlet (P1) is connected to the first fluid outlet (P2) through the first corner hole channel (TD1), the second corner hole channel (TD2) and the inter-plate channel (TD3); the first fluid inlet (P1) is also connected to the first fluid outlet (P2) through the first corner hole channel (TD1), the connecting port (P3), the valve port (P4), the bypass channel (101) and the second corner hole channel (TD2).

4. The integrated device (1) according to claim 3, characterized in that The heat exchange component (10) comprises a first side plate (11), a second side plate (12) and a heat exchange core (13); the first side plate (11) and the second side plate (12) are arranged along the height direction of the heat exchange component (10); at least a portion of the heat exchange core (13) is located between the first side plate (11) and the second side plate (12); the first fluid inlet (P1) and the first fluid outlet (P2) are located on the first side plate (11); and the communication port (P3) is located on the second side plate (12); The connection assembly (20) comprises a valve body (24) and a connection member (23) which are sealed, and the connection member (23) and the second side plate (12) are sealed to jointly define at least a portion of the bypass channel (101).

5. The integrated device (1) according to claim 4, characterized in that The heat exchange component (10) comprises a second heat exchange channel (142), in which the second heat exchange channel (142) and the first heat exchange channel (141) are fluidically isolated from each other, and the heat exchange component (10) further comprises a connecting pipe portion (15), wherein the connecting pipe portion (15) is sealed with the second side plate (12) or the connecting member (23), and a channel of the connecting pipe portion (15) is in communication with the second heat exchange channel (142); Along the height direction of the heat exchange component (10), at least a portion of the connection component (20) and at least a portion of the connecting pipe portion (15) are located at the same height.

6. The integrated device (1) according to claim 4, characterized in that The heat exchange core (13) comprises heat exchange plates (131) stacked along the height direction of the heat exchange assembly (10); the connecting piece (23) is covered on the outer peripheral side of the second side plate (12); a portion of the connecting piece (23) and the second side plate (12) are located at the same height; a portion of the connecting piece (23) and the heat exchange plates (131) are sealed to define a portion of the wall of the first corner hole channel (TD1) and / or a portion of the wall of the second corner hole channel (TD2); Alternatively, along the height direction of the heat exchange assembly (10), the connecting member (23) is located on a side of the second side plate (12) facing away from the first side plate (11).

7. The integrated device (1) according to claim 4, characterized in that The integrated device (1) further comprises a driving assembly (32) and a clamping member (33), wherein the driving assembly (32) comprises a driving shell (321), wherein one of the driving shell (321) and the valve body (24) is embedded in the other, and the driving shell (321) and the valve body (24) are sealed, and the clamping member (33) penetrates the valve body (24) and the driving shell (321), and the valve body (24) and the driving shell (321) are connected via the clamping member (33); The drive assembly (32) further comprises a coil assembly (322), a static iron core (324) and a moving iron core (323); the coil assembly (322) is located in a space defined by the drive housing (321) or the coil assembly (322) and the drive housing (321) are an integral injection-molded structure; at least a portion of the moving iron core (323) is located on the inner circumference of the coil assembly (322); the valve core assembly (31) comprises a valve stem; the moving iron core (323) and the valve stem are an integral structure or a position-limiting arrangement; the moving iron core (323) can move in a direction close to or away from the static iron core (324); The drive assembly (32) further comprises an isolation cover (35) and a first sealing member (34), wherein the first sealing member (34) is located between the isolation cover (35) and the drive housing (321), and at least a portion of the isolation cover (35) is located between the moving iron core (323) and the coil assembly (322). The valve core assembly (31) further comprises a balancing hole (36) and a balancing chamber (37), wherein the balancing chamber (37) is located on a side of the first sealing member (34) facing away from the valve chamber (102), and the balancing hole (36) connects the bypass channel (101) with the balancing chamber (37).

8. The integrated device (1) according to claim 3, characterized in that The heat exchange component (10) comprises a first side plate (11), a second side plate (12) and a heat exchange core (13), wherein the first side plate (11) and the second side plate (12) are arranged along the height direction of the heat exchange component (10), at least a portion of the heat exchange core (13) is located between the first side plate (11) and the second side plate (12), and the first fluid inlet (P1) and the first fluid outlet (P2) are located on the first side plate (11); The communication port (P3) is located on the second side plate (12); the connection assembly (20) comprises a valve body (24) and a connection member (23) which are sealed; the bypass channel (101) is located on the connection member (23); and the connection member (23) is sealed with the heat exchange assembly (10).

9. The integrated device (1) according to any one of claims 1 to 8, characterized in that: The heat exchange component (10) also has a first fluid outlet (P2), and the bypass channel (101) and the first heat exchange channel (141) are both connected to the first fluid outlet (P2). The integrated device (1) also has a second working mode. In the second working mode, the valve core component (31) abuts against the wall portion defining the valve port (P4), and the first fluid inlet (P1) is connected to the first fluid outlet (P2) through the first heat exchange channel (141).

10. A thermal management system (2), characterized in that: The integrated device (1) comprises an oil pump (50) and any one of claims 1 to 9, wherein the oil pump (50) has a first pump port (51), and the first pump port (51) is connected to the first fluid inlet (P1).

11. A control method for a thermal management system, characterized in that: For controlling the thermal management system (2) according to claim 10, the thermal management system (2) comprising a first branch (40), the first branch (40) being located upstream of the oil pump (50), and a channel in the first branch (40) being connected to a channel in the oil pump (50), the control method comprising: comparing the temperature of the fluid in the first branch (40) with a temperature threshold to obtain a comparison result; The valve core component (31) is controlled to move toward or away from the valve port (P4) according to the comparison result, so as to adjust the communication state between the communication port (P3) and the valve port (102).

12. The control method of the thermal management system according to claim 10, characterized in that: The control method comprises: Comparing the temperature of the fluid in the first branch (40) with the temperature threshold, and obtaining a first comparison result that the temperature of the fluid in the first branch (40) is less than or equal to the temperature threshold; According to the first comparison result, the valve core component (31) is controlled to move until a gap is formed between the valve core component (31) and a wall portion defining the valve port (P4).

13. The control method of the management system according to claim 11 or 12, characterized in that: The control method comprises: Comparing the temperature of the fluid in the first branch (40) with the temperature threshold, and obtaining a second comparison result that the temperature of the fluid in the first branch (40) is greater than the temperature threshold; According to the second comparison result, the valve core assembly (31) is controlled to move until the valve core assembly (31) abuts against a wall portion defining the valve port (P4).

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