Integrated device, thermal management system and control method thereof

Abstract

The invention discloses an integrated device, a heat management system and a control method thereof.The integrated device is provided with a bypass channel, a valve cavity, a first valve port and a second valve port, the integrated device comprises a heat exchange assembly, a connecting assembly and a valve assembly, the valve assembly comprises a valve element assembly, at least part of the valve element assembly is located in the valve cavity, and a first communicating port communicates with the bypass channel; the second communication port is communicated with the first fluid inlet, the third communication port is communicated with the inlet, the third communication port can be communicated with the first communication port through the first valve port, the third communication port can be communicated with the second communication port through the second valve port, and the valve element assembly is configured to selectively enable at least one of the first valve port and the second valve port to be in an open state; in this way, the integrated device can bypass the first fluid inlet of the heat exchange assembly through the bypass channel, and pressure loss of working fluid in 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. The integrated device can bypass at least part of the flow path of the heat exchange component through a bypass channel, so as to reduce the pressure loss of the working fluid of the integrated device in a low-temperature environment. The integrated device has a high degree of integration, so as to reduce 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, a first valve port and a second valve port. The integrated device includes a heat exchange component, a connection component and a valve core component. The heat exchange component has a first fluid inlet, the connection component is sealed and connected to the heat exchange component, and the connection component covers the first fluid inlet, the connection component forms at least a portion of the wall of the bypass channel, and the connection component forms at least a portion of the wall of the valve cavity, at least a portion of the valve core component is located in the valve cavity, and the valve core component is movably arranged relative to the first valve port and the second valve port; wherein the connection component has an inlet, a first connecting port, a second connecting port and a third connecting port, the first connecting port is connected to the bypass channel, the second connecting port is connected to the first fluid inlet, the third connecting port is connected to the inlet, the third connecting port can be connected to the first connecting port through the first valve port, and the third connecting port can be connected to the second connecting port through the second valve port, and the valve core component is configured to selectively open at least one of the first valve port and the second valve port.

[0005] According to the integrated device provided by the embodiment of the present invention, the connecting component is sealed and connected to the heat exchange component, and the connecting component forms a bypass channel and at least a partial wall portion of the valve cavity, the valve core component is located in the valve cavity, and the second connecting port of the connecting component is connected to the first fluid inlet of the heat exchange component, which facilitates the integration of the integrated device and helps to reduce the space occupied by the integrated device; further, by setting the first connecting port to be connected to the bypass channel, and the third connecting port to be connected to the inlet, the valve core component is configured to selectively make at least one of the first valve port and the second valve port in an open state, and the third connecting port can be connected to the first connecting port through the first valve port, and the third connecting port can be connected to the second connecting port through the second valve port. When the fluid temperature in the thermal management system is low, by controlling the valve core component, the bypass channel can bypass at least part of the flow path of the heat exchange component, thereby reducing or avoiding the oil medium from entering the heat exchange component through the first fluid inlet, 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, comprising 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 inlet.

[0007] According to the thermal management system provided by an embodiment of the present invention, the valve core assembly is configured to selectively open at least one of the first valve port and the second valve port, and the third connecting port can be connected to the first connecting port through the first valve port, and the third connecting port can be connected to the second connecting port through the second valve port. When the fluid temperature in the thermal management system is low, by controlling the valve core assembly, the bypass channel can bypass at least part of the flow path of the heat exchange component, 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.

[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 relative to the first valve port and the second valve port according to the comparison result, so that the valve core assembly opens at least one of the first valve port and the second valve port.

[0009] According to the control method of the thermal management system provided by an embodiment of the present invention, the comparison result is obtained by comparing the fluid temperature in the first branch with the temperature threshold, and the movement of the valve core assembly is controlled according to the comparison result to open at least one of the first valve port and the second valve port, so that the integrated device can control the valve core assembly according to the fluid temperature in the first branch, so as to facilitate the thermal management system to operate better in a variety of different environments and reduce the loss of oil medium. BRIEF DESCRIPTION OF THE DRAWINGS

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

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

[0012] Figure 3 yes Figure 2 A schematic diagram of the exploded structure of an integrated device at another angle is shown in FIG.

[0013] Figure 4 yes Figure 2 A schematic diagram of a three-dimensional structure of an integrated device shown in FIG.

[0014] Figure 5 yes Figure 4 A schematic structural diagram of an integrated device in a first working mode is shown in;

[0015] Figure 6 yes Figure 4 A schematic diagram of a partial cross-sectional structure of an integrated device shown in FIG.

[0016] Figure 7 yes Figure 4 Another partial cross-sectional structural schematic diagram of an integrated device shown in FIG.

[0017] Figure 8 is a schematic diagram of the three-dimensional structure of a connection assembly provided by an embodiment of the present invention;

[0018] Fig. 9 yes Figure 8 A schematic diagram of a three-dimensional structure of a shell shown in FIG.

[0019] Fig.10 yes Fig. 9 A schematic diagram of a cross-sectional structure of a shell shown in FIG.

[0020] Fig.11 yes Figure 4 A schematic diagram of the three-dimensional structure of a valve assembly is shown in FIG.

[0021] Fig.12 yes Fig.11 A schematic cross-sectional structure diagram of a valve assembly is shown in FIG.

[0022] Fig.13 yes Figure 4 A schematic structural diagram of an integrated device in a second working mode is shown in;

[0023] Fig.14 It is a schematic block diagram of the process of a control method for an integrated device provided by an embodiment of the present invention. Description of the drawings:

[0025] 1. Integrated device; 101. Bypass channel; 102. Valve cavity; 103. First valve port; 104. Second valve port; P6. First valve port; P7. Second valve port; P1. First fluid inlet; P2. First fluid outlet; P3. First communication port; P4. Second communication port; P5. Third communication port; 10. Heat exchange component; 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; 15. Pipe connection; 20. Connecting component; 21. Inlet; 22. Outlet; 23. Shell; 231. Clamping part; 232. Mounting channel; 24. Flow channel component; 241. First plate; 2411. First port; 2 412, second port; 242, second plate; 243, third plate; 244, first flow channel; 245, second flow channel; 30, valve assembly; 31, valve core assembly; 311, first valve core portion; 312, second valve core portion; 313, valve stem; 32, drive assembly; 321, drive shell; 322, coil assembly; 323, moving iron core; 324, stationary iron core; 325, elastic member; 33, snap-on member; 34, first sealing member; 35, isolation cover; 361, balancing hole; 362, balancing chamber; 37, second sealing member; 38, third sealing member; 39, fourth 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

[0026] 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.

[0027] like Figures 1 to 6As shown, a thermal management system is usually provided on 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 temperature of the medium oil is low and the viscosity is high. At this time, the flow resistance of the oil when passing through the heat exchanger is large, resulting in a large pressure loss. When the oil passes through the heat exchanger, the oil and the cooling water achieve heat exchange. At this time, the cooling water will cool the oil, which is not conducive to the rapid rise of the fluid temperature.

[0028] To improve the above problems, Figure 1 As 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 21 of the integrated device 1, and the outlet 22 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 connecting pipelines, wherein the mouths where the openings are located include the openings and the wall surface defining the openings.

[0029] 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 component 10 and a valve component 30. The heat exchange component 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 component 30 includes a valve core component 31, and at least a portion of the first heat exchange channel 141 can be bypassed by controlling the action of the valve core component 31. Through the above arrangement, when the vehicle is just started and / or when the vehicle is running in a cold environment, at least a portion of the first heat exchange channel 141 can be bypassed by controlling the action of the valve core component 31, so that at least a portion of the medium oil can pass through the bypass channel 101, reducing or avoiding the medium oil from passing through the heat exchange component 10 for heat exchange, and reducing the oil consumption of the medium oil, which is conducive to reducing the driving force of the oil pump 50. Alternatively, the bypass channel 101 can be closed by controlling the action of the valve core assembly 31. Through the above arrangement, when the fluid temperature in the thermal management system 2 is high, the oil exchanges heat with the cooling water through the first heat exchange channel 141, thereby facilitating the reduction of the fluid temperature and thereby cooling the electric drive device 61.

[0030] In some embodiments, the thermal management system 2 further includes a second branch, the channel in the second branch is connected to the second heat exchange channel 142 in the heat exchange assembly 10, and the second branch may also include a heat exchanger to facilitate heat exchange of structures such as batteries in the vehicle. 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.

[0031] The heat exchange assembly 10 includes a first side plate 11, a second side plate 12, and a heat exchange core 13 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. Part of the first heat exchange channel 141 can be located between adjacent heat exchange plates 131, and part of the second heat exchange channel 142 can be located between adjacent heat exchange plates 131. The heat exchange assembly 10 has a first fluid inlet P1 and a first fluid outlet P2. The first fluid inlet P1 and the first fluid outlet P2 are both located on the first side plate 11. The inlet of a refrigerant such as cooling water and the outlet of the refrigerant can be both located on the second side plate 12. The second heat exchange channel 142 of the heat exchange assembly 10 is isolated from the first heat exchange channel 141, and heat conduction is arranged between the second heat exchange channel 142 and the first heat exchange channel 141. The second heat exchange channel 142 and the bypass channel 101 are isolated. In this article, the two channels are isolated from each other, which means that the two channels are not connected, and the fluids flowing in the two channels cannot interact with each other.

[0032] In some embodiments, the heat exchange assembly 10 further includes a connecting pipe 15 , which is sealed to the second side plate 12 , and a channel of the connecting pipe 15 is connected to the second heat exchange channel 142 , so that the coolant can flow into or out of the integrated device 1 from the connecting pipe 15 .

[0033] like Figures 2 to 7 As shown, in an embodiment of the present invention, the integrated device 1 has a bypass channel 101, a valve cavity 102, a first valve port P6 and a second valve port P7, the integrated device 1 includes a heat exchange component 10, a connecting component 20 and a valve component 30, the heat exchange component 10 has a first fluid inlet P1, the connecting component 20 is sealed and connected to the heat exchange component 10, and the connecting component 20 covers the first fluid inlet P1, the connecting component 20 forms at least a portion of the wall of the bypass channel 101, and the connecting component 20 forms at least a portion of the wall of the valve cavity 102, the valve assembly 30 includes a valve core assembly 31, at least a portion of the valve core assembly 31 is located in the valve cavity 102, and the valve core assembly 31 is movably arranged relative to the first valve port P6 and the second valve port P7. The connecting assembly 20 has an inlet 21, a first connecting port P3, a second connecting port P4 and a third connecting port P5. The oil flowing out of the oil pump 50 can flow into the integrated device 1 through the inlet 21. The first connecting port P3 is connected to the bypass channel 101, the second connecting port P4 is connected to the first fluid inlet P1, and the third connecting port P5 is connected to the inlet 21. The third connecting port P5 can be connected to the first connecting port P3 through the first valve port P6, and the third connecting port P5 can be connected to the second connecting port P4 through the second valve port P7. The valve core assembly 31 is configured to selectively make at least one of the first valve port P6 and the second valve port P7 in an open state.

[0034] Specifically, the integrated device 1 includes a first valve port portion 103 and a second valve port portion 104, the first valve port portion 103 includes a first valve port P6 and a wall defining the first valve port P6, the second valve port portion 104 includes a second valve port P7 and a wall defining the second valve port P7, the first valve port portion 103 and the second valve port portion 104 are arranged at intervals along the moving direction of the valve core assembly 31, and the valve core assembly 31 includes a first valve core portion 311 and a second valve core portion 312, as shown in FIG. Figure 5 and Figure 7 As shown, the first valve core part 311 and the second valve core part 312 can both be located between the first valve port part 103 and the second valve port part 104. In other embodiments, the first valve port part 103 and the second valve port part 104 can both be located between the first valve core part 311 and the second valve core part 312. When the valve core assembly 31 moves to the point where the first valve core part 311 abuts against the first valve port part 103, there is a gap between the second valve core part 312 and the second valve port part 104, at which time the first valve port P6 is in a closed state, and the second valve port P7 is in an open state. When the valve core assembly 31 moves to the point where there is a gap between the first valve core part 311 and the first valve port part 103, the second valve core part 312 abuts against the second valve port part 104, at which time the first valve port P6 is in an open state, and the second valve port P7 is in a closed state. When the valve core assembly 31 moves to a point where there is a gap between the first valve core portion 311 and the first valve port portion 103 and a gap between the second valve core portion 312 and the second valve port portion 104 , the first valve port P6 is in an open state and the second valve port P7 is in an open state.

[0035] In this article, the first valve core portion 311 and the second valve core portion 312 both include a valve core portion and an elastic portion, and the elastic portion can be deformed under the extrusion of the valve core portion, so that the first valve core portion 311 abuts against the first valve mouth portion 103, or the second valve core portion 312 abuts against the second valve mouth portion 104.

[0036] Please read further Figures 5 to 10 In some embodiments, the connection assembly 20 includes a shell 23 and a flow channel assembly 24, and the shell 23 and the flow channel assembly 24 are sealed and connected. Specifically, the shell 23 can be welded with the flow channel assembly 24 for sealing, or the shell 23 can be an integral structure with at least part of the flow channel assembly 24. The shell 23 forms at least part of the wall of the valve cavity 102, and the flow channel assembly 24 forms at least part of the wall of the bypass channel 101. Through the above arrangement, it is convenient to reduce the pipeline arrangement between the shell 23 and the flow channel assembly. In a specific implementation, the shell 23 and the flow channel assembly 24 can be metal parts, and the shell 23 can be sealed and connected with the flow channel assembly 24 by brazing.

[0037] In some other embodiments, the housing 23 may be a plastic part, and the housing 23 and the flow channel assembly 24 may be sealed by a flat gasket and locked and fixed by fasteners such as bolts. The above arrangement is convenient for reducing the weight of the integrated device 1 and saving costs.

[0038] The flow channel assembly 24 is sealed with the heat exchange assembly 10, and the flow channel assembly 24 is located on one side of the height direction of the heat exchange assembly 10 and covers the first fluid inlet P1. The shell 23 and the flow channel assembly 24 are arranged in parallel along the direction intersecting the height direction of the heat exchange assembly 10. Optionally, the shell 23 and the flow channel assembly 24 are arranged in parallel along the direction perpendicular to the height direction of the heat exchange assembly 10. Through the above arrangement, it is convenient to reduce the size of the integrated device 1 in the height direction.

[0039] In some embodiments, the first heat exchange channel 141 connects the first fluid inlet P1 and the first fluid outlet P2, and the connecting component 20 also has an outlet 22. The inlet 21 and the outlet 22 are both located in the flow channel component 24. The outlet 22 is connected to the first fluid outlet P2 and the bypass channel 101, so that the fluid flowing out of the bypass channel 101 and the fluid flowing out of the first fluid outlet P2 can both flow out of the integrated device 1 through the outlet 22, and the position of the outlet 22 can be flexibly set to meet user needs.

[0040] Please further combine Figures 2 to 8 In some embodiments, the flow channel assembly 24 includes a first plate 241, a second plate 242 and a third plate 243. Along the height direction of the heat exchange assembly 10, a portion of the first plate 241 is located between the second plate 242 and the heat exchange assembly 10, and at least a portion of the second plate 242 is located between the first plate 241 and the third plate 243. The first plate 241 is sealedly connected to the second plate 242, the second plate 242 is sealedly connected to the third plate 243, and the first plate 241 is sealedly connected to the heat exchange assembly 10 and the shell 23.

[0041] Further, in order to facilitate the flexible setting of the position of the inlet 21, in some embodiments, the flow channel assembly 24 has a first flow channel 244, the first flow channel 244 connects the inlet 21 and the third connecting port P5, and the second connecting port P4 is arranged at intervals with the first fluid inlet P1 along the direction intersecting the height direction of the heat exchange assembly 10; the flow channel assembly 24 also has a second flow channel 245, and the second flow channel 245 connects the second connecting port P4 with the first fluid inlet P1. Through the above arrangement, it is convenient to flexibly adjust the position of the inlet 21 according to different oil pipeline position requirements in the vehicle. The second flow channel 245 is located between the first plate 241 and the second plate 242, and the first flow channel 244 is located between the second plate 242 and the third plate 243. The first plate 241 has a first port 2411 and a second port 2412, the first port 2411 is aligned and connected with the first fluid inlet P1, and the second port 2412 is aligned and connected with the first fluid outlet P2.

[0042] To achieve positioning of the flow channel assembly 24 , in some embodiments, one of the heat exchange assembly 10 and the flow channel assembly 24 includes a limiting column, and the other includes a mounting hole, and the limiting column is inserted into the mounting hole to position the heat exchange assembly 10 and the flow channel assembly 24 .

[0043] In some embodiments, the valve assembly 30 further includes a drive assembly 32, which includes a drive shell 321 and a drive member, the drive member can drive the valve core assembly 31 to move, a portion of the drive shell 321 is embedded in the housing 23, and the drive shell 321 is sealed and connected to the housing 23, the first valve port P6 is located in the housing 23, and the second valve port P7 is located in the drive shell 321, that is, the first valve port portion 103 is located in the housing 23, and the second valve port portion 104 is located in the drive shell 321. The drive member can be a motor; or a combination of a motor and a speed reduction mechanism; or a combination of a motor and a screw rod; or the drive member can be an electromagnetic drive member.

[0044] In order to achieve precise control of the moving position of the valve core assembly 31, the drive assembly 32 may also include a control component such as a printed circuit board, so as to facilitate the simultaneous opening of the first valve port P6 and the second valve port P7, or control the opening of one of the first valve port P6 and the second valve port P7. In some other embodiments, the drive assembly 32 may not include a control component, and the opening of one of the first valve port P6 and the second valve port P7 is achieved by energizing or de-energizing the coil assembly.

[0045] 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 also includes a valve stem 313. The moving iron core 323 and the valve stem 313 are an integral structure or a limit setting. The first valve core portion 311 and the second valve core portion 312 and the valve stem 313 are an integral structure or a limit setting. The moving iron core 323 can move in a direction close to 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.

[0046] 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 .

[0047] Furthermore, in order to make the integrated device 1 have better sealing performance, Figures 6 to 12 In some embodiments, the integrated device 1 may further include a first seal 34, a second seal 37, a third seal 38 and a fourth seal 39. In the radial direction of the valve core assembly 31, the first seal 34 and the second seal 37 are sandwiched between the drive shell 321 and the housing 23. In the moving direction of the valve core assembly 31, the first seal 34 is located on the side of the second communication port P4 away from the third communication port P5, and the second seal 37 is located between the second communication port P4 and the third communication port P5. In the radial direction of the valve core assembly 31, the third seal 38 is sandwiched between the drive shell 321 and the isolation cover 35, and the fourth seal 39 is sandwiched between the moving iron core 323 and the drive shell 321, or the fourth seal 39 is located between the valve core assembly 31 and the drive shell 321, so as to improve the sealing performance of the valve assembly 30. In the moving stroke range of the valve core assembly 31, the fourth seal 39 can achieve the sealing between the valve core assembly 31 and the drive shell 321.

[0048] In order to reduce the valve opening pressure of the valve assembly 30, the valve assembly 30 further has a balance hole 361 and a balance cavity 362. The balance cavity 362 is located on the side of the fourth sealing member 39 facing the static iron core 324, as shown in FIG. Figure 6 As shown, part of the balancing chamber 362 is located between the isolation cover 35 and the moving iron core 323 , and the balancing hole 361 connects the bypass channel 101 with the balancing chamber 362 .

[0049] To achieve the limit setting of the drive assembly 32, in some embodiments, combined with Figures 2 to 8As 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 housing 23 is embedded in the other, and the driving shell 321 is sealed with the housing 23. The clamping member 33 penetrates the housing 23 and the driving shell 321, and the housing 23 and the driving shell 321 are connected through the clamping member 33. The housing 23 includes a mounting channel 232, and part of the clamping member 33 is located in the mounting channel 232. In order to limit the position of the clamping member 33, a clamping portion 231 is further provided in the housing 23. When the clamping member 33 penetrates the housing 23 and the driving shell 321, the clamping member 33 is clamped by the clamping portion 231 to prevent the clamping member 33 from coming out.

[0050] In some embodiments, the integrated device 1 has at least one of the following working modes:

[0051] like Figure 5 and Figure 7 As shown, in the first working mode of the integrated device 1, the valve core assembly 31 is located at the first position, the first valve core portion 311 is in contact with the first valve port portion 103, there is a gap between the second valve core portion 312 and the second valve port portion 104, and the inlet 21 is connected with the outlet 22 through the third connecting port P5, the second valve port P7, the second connecting port P4, the first fluid inlet P1, and the first heat exchange channel 141. In the first working mode, the cooling oil enters the flow channel assembly 24 from the inlet 21, and through the control of the valve core assembly 31, the cooling oil flows from the second valve port P7 to the first fluid inlet P1, and then flows from the first fluid outlet P2 to the outlet 22 through the first heat exchange channel 141, completing the heat exchange process.

[0052] like Fig.13 As shown, in the second working mode of the integrated device 1, the valve core assembly 31 is located in the second position, there is a gap between the first valve core portion 311 and the first valve port portion 103, the second valve core portion 312 abuts against the second valve port portion 104, and the inlet 21 is connected to the outlet through the third connecting port P5, the first valve port P6, the first connecting port P3, and the bypass channel 101. At this time, the bypass channel 101 bypasses the heat exchange component 10, and the medium oil rarely flows through the first heat exchange channel 141, thereby reducing or avoiding the oil medium from entering the heat exchange component 10 through the first fluid inlet, which is convenient for reducing the pressure loss of the oil medium when passing through the integrated device 1, and is convenient for reducing the driving force of the oil pump 50.

[0053] In the third working mode of the integrated device 1, the valve core assembly 31 is located in the third position, there is a gap between the first valve core portion 311 and the first valve port portion 103, there is a gap between the second valve core portion 312 and the second valve port portion 104, the inlet 21 is connected to the outlet through the third connecting port P5, the second valve port P7, the second connecting port P4, the first fluid inlet P1, and the first heat exchange channel 141, and the inlet 21 is connected to the outlet through the third connecting port P5, the first valve port P6, the first connecting port P3, and the bypass channel 101.

[0054] 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.

[0055] In summary, according to the integrated device 1 provided in the embodiment of the present invention, the first connecting port P3 is connected to the bypass channel 101, and the third connecting port P5 is connected to the inlet 21. The valve core assembly 31 is configured to selectively make at least one of the first valve port P6 and the second valve port P7 in an open state, and the third connecting port P5 can be connected to the first connecting port P3 through the first valve port P6, and the third connecting port P5 can be connected to the second connecting port P4 through the second valve port P7. When the fluid temperature in the thermal management system 2 is low, by controlling the valve core assembly 31, the bypass channel 101 can bypass the first fluid inlet P1, thereby reducing or avoiding the oil medium from entering the heat exchange component 10 through the first fluid inlet P1, so as to reduce the pressure loss of the oil medium when passing through the integrated device 1.

[0056] 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 of any of the above-mentioned embodiments, wherein the thermal management system comprises a first branch 40, an oil pump 50 and an integrated device 1 of any of the above-mentioned embodiments, wherein the first branch 40 is located upstream of the oil pump 50, and a channel in the first branch 40 is connected to a channel in the oil pump 50, and an outlet of the oil pump 50 is connected to an inlet 21 of the integrated device 1. The control method of the thermal management system in the embodiment of the present invention comprises:

[0057] Step S110, comparing the temperature of the fluid in the first branch 40 with the temperature threshold to obtain a comparison result;

[0058] Step S120 , controlling the valve core assembly 31 to move relative to the first valve port P6 and the second valve port P7 according to the comparison result, so that the valve core assembly 31 opens at least one of the first valve port P6 and the second valve port P7 .

[0059] In some embodiments, medium oil may flow through the first branch 40, and the fluid temperature in the first branch 40 may be the oil temperature in the first branch 40. Before step S110, a step of detecting the temperature of the fluid in the first branch 40 may also be 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 temperature of the fluid 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.

[0060] The first branch 40 includes structures 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.

[0061] 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.

[0062] In some embodiments, the valve core assembly 31 includes a first valve core portion 311 and a second valve core portion 312 arranged at intervals, the integrated device 1 includes a first valve port portion 103 and a second valve port portion 104, the first valve port portion 103 includes a first valve port P6 and a wall defining the first valve port P6, the second valve port portion 104 includes a second valve port P7 and a wall defining the second valve port P7, and the control method of the thermal management system 2 includes:

[0063] Step S111, comparing the temperature of the fluid in the first branch 40 with a 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;

[0064] Step S121 , according to the first comparison result, the second valve core portion 312 is controlled to abut against the second valve opening portion 104 , and a gap is provided between the first valve core portion 311 and the first valve opening portion 103 , which is defined as a full bypass mode.

[0065] Through the above arrangement, the medium oil enters the bypass channel 101 from the first valve port 103, which can prevent or reduce the oil medium from entering the heat exchange component 10, facilitate rapid increase of the fluid temperature, and reduce the loss of the oil pump 50.

[0066] Furthermore, the control method of the thermal management system also includes:

[0067] Step S112, 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;

[0068] Step S122, according to the second comparison result, control the second valve core part 312 to move to a position where there is a gap between it and the second valve mouth part 104, and make the first valve core part 311 abut against the first valve mouth part 103, and define this as the full bypass mode; or according to the second comparison result, control the second valve core part 312 to move to a position where there is a gap between it and the second valve mouth part 104, and make the first valve core part 311 abut against the first valve mouth part 103, and define this as the partial bypass mode.

[0069] Through the above arrangement, when the temperature of the fluid in the first branch 40 is greater than the temperature threshold, the action of the control valve core assembly 31 is controlled so that the medium oil flows through the heat exchange assembly 10 for heat exchange, thereby cooling the medium oil.

[0070] Optionally, the drive assembly 32 may include a control component such as a printed circuit board, which may control the moving position of the valve core assembly 31. The temperature threshold at this time may include a first temperature threshold and a second temperature threshold, and the second temperature threshold is greater than the first temperature threshold. At this time, the control method of the thermal management system includes:

[0071] Step 1, comparing the temperature of the fluid in the first branch 40 with a temperature threshold, and obtaining a first result that the temperature of the fluid in the first branch 40 is less than or equal to the first temperature threshold;

[0072] Step 2: Control the valve core assembly 31 to move according to the first result, so that the second valve core portion 312 abuts against the second valve port portion 104 , and a gap exists between the first valve core portion 311 and the first valve port portion 103 .

[0073] Step 3, comparing the temperature of the fluid in the first branch 40 with the temperature threshold, and obtaining a second result that the temperature of the fluid in the first branch 40 is greater than the first temperature threshold and less than or equal to the second temperature threshold;

[0074] Step 4: Control the valve core assembly 31 to move according to the first result, so that the second valve core portion 312 moves to a position where there is a gap between the second valve core portion 312 and the second valve opening portion 104 , and a gap between the first valve core portion 311 and the first valve opening portion 103 .

[0075] In a specific implementation, the first temperature threshold can be equal to the second temperature threshold, that is, when the fluid temperature in the first branch 40 is less than or equal to the temperature threshold, for example, when the fluid temperature in the first branch 40 is less than or equal to 40°C, the user can control the action of the valve core assembly 31 as needed to achieve a partial bypass mode or a full bypass mode of the thermal management system.

[0076] According to the control method of the thermal management system provided by an embodiment of the present invention, the comparison result is obtained by comparing the fluid temperature in the first branch 40 with the temperature threshold, and the movement of the valve core assembly 31 is controlled according to the comparison result to open at least one of the first valve port P6 and the second valve port P7, so that the integrated device 1 can control the valve core assembly 31 according to the fluid temperature in the first branch 40, so as to facilitate the thermal management system 2 to operate better in a variety of different environments, reduce the loss of oil medium, and improve the response speed and control accuracy of the valve assembly 30.

[0077] 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), a first valve port (P6) and a second valve port (P7), and the integrated device (1) includes 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); the connection component (20) is sealedly connected to the heat exchange component (10), and the connection component (20) covers the first fluid inlet (P1); 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), and the valve core component (31) is movably arranged relative to the first valve port (P6) and the second valve port (P7); Wherein, the connecting component (20) has an inlet (21), a first connecting port (P3), a second connecting port (P4) and a third connecting port (P5); the first connecting port (P3) is connected to the bypass channel (101); the second connecting port (P4) is connected to the first fluid inlet (P1); the third connecting port (P5) is connected to the inlet (21); the third connecting port (P5) can be connected to the first connecting port (P3) through the first valve port (P6); the third connecting port (P5) can be connected to the second connecting port (P4) through the second valve port (P7); the valve core component (31) is configured to selectively enable at least one of the first valve port (P6) and the second valve port (P7) to be in an open state.

2. The integrated device (1) according to claim 1, characterized in that The connection assembly (20) comprises a housing (23) and a flow channel assembly (24); the housing (23) and the flow channel assembly (24) are sealed and connected; the housing (23) forms at least a portion of the wall of the valve chamber (102); and the flow channel assembly (24) forms at least a portion of the wall of the bypass channel (101); The flow channel component (24) is located on one side of the height direction of the heat exchange component (10) and covers the first fluid inlet (P1). Along a direction intersecting the height direction of the heat exchange component (10), the shell (23) and the flow channel component (24) are arranged in parallel.

3. The integrated device (1) according to claim 2, characterized in that The heat exchange component (10) further comprises a first heat exchange channel (141) and a first fluid outlet (P2), wherein the first heat exchange channel (141) connects the first fluid inlet (P1) and the first fluid outlet (P2), and the connection component (20) further comprises an outlet (22), wherein the inlet (21) and the outlet (22) are both located in the flow channel component (24), and the outlet (22) is connected to the first fluid outlet (P2) and the bypass channel (101).

4. The integrated device (1) according to claim 3, characterized in that Along a direction intersecting with the height direction of the heat exchange component (10), the second communication port (P4) and the first fluid inlet (P1) are arranged at intervals; The flow channel component (24) comprises a first flow channel (244) and a second flow channel (245), wherein the first flow channel (244) connects the inlet (21) and the third communication port (P5), and the second flow channel (245) connects the second communication port (P4) and the first fluid inlet (P1).

5. The integrated device (1) according to claim 4, characterized in that The flow channel component (24) includes a first plate (241), a second plate (242) and a third plate (243); along the height direction of the heat exchange component (10), a portion of the third plate (243) is located between the second plate (242) and the heat exchange component (10); at least a portion of the second plate (242) is located between the first plate (241) and the third plate (243); the first plate (241) is sealedly connected to the second plate (242); the second plate (242) is sealedly connected to the third plate (243); and the first plate (241) is sealedly connected to the heat exchange component (10) and the shell (23).

6. The integrated device (1) according to any one of claims 3 to 5, characterized in that: The valve core assembly (31) comprises a first valve core portion (311) and a second valve core portion (312) which are arranged at intervals, and the integrated device (1) comprises a first valve port portion (103) and a second valve port portion (104), wherein the first valve port portion (103) has a first valve port (P6), and the second valve port portion (104) comprises the second valve port (P7); Along the axial direction of the valve core assembly (31), the first valve core portion (311) and the second valve core portion (312) are both located between the first valve port portion (103) and the second valve port portion (104), or along the axial direction of the valve core assembly (31), the first valve port portion (103) and the second valve port portion (104) are located between the first valve core portion (311) and the second valve core portion (312).

7. The integrated device (1) according to claim 6, characterized in that The connection assembly (20) comprises a housing (23), wherein the housing (23) forms at least a portion of a wall of the valve chamber (102); The integrated device (1) also includes a drive assembly (32), the drive assembly (32) includes a drive shell (321) and a drive member, the drive member can drive the valve core assembly (31) to move, a portion of the drive shell (321) is embedded in the shell (23), and the drive shell (321) is sealed and connected to the shell (23), the first valve port (P6) is located in the shell (23), and the second valve port (P7) is located in the drive shell (321).

8. The integrated device (1) according to claim 6, characterized in that The integrated device (1) has at least one of the following working modes: In a first working mode, the valve core assembly (31) is located at a first position, the first valve core portion (311) is in contact with the first valve port portion (103), a gap is provided between the second valve core portion (312) and the second valve port portion (104), and the inlet (21) is connected to the outlet (22) via the third communication port (P5), the second valve port (P7), the second communication port (P4), the first fluid inlet (P1), and the first heat exchange channel (141); In the second working mode, the valve core assembly (31) is located at the second position, a gap is provided between the first valve core portion (311) and the first valve port portion (103), the second valve core portion (312) is in contact with the second valve port portion (104), and the inlet (21) is connected with the outlet (22) via the third communication port (P5), the first valve port (P6), the first communication port (P3), and the bypass channel (101); In the third working mode, the valve core assembly (31) is located at the third position, a gap is provided between the first valve core portion (311) and the first valve port portion (103), a gap is provided between the second valve core portion (312) and the second valve port portion (104), the inlet (21) is connected to the outlet (22) via the third connecting port (P5), the second valve port (P7), the second connecting port (P4), the first fluid inlet (P1), and the first heat exchange passage (141), and the inlet (21) is connected to the outlet (22) via the third connecting port (P5), the first valve port (P6), the first connecting port (P3), and the bypass passage (101).

9. A thermal management system, characterized in that: It comprises an oil pump (50) and the integrated device (1) according to any one of claims 1 to 8, wherein the oil pump (50) has a first pump port (51), and the first pump port (51) is connected to the inlet (21).

10. A control method for a thermal management system, characterized in that: For controlling the thermal management system according to claim 9, the thermal management system 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 assembly (31) is controlled to move relative to the first valve port (P6) and the second valve port (P7) according to the comparison result, so that the valve core assembly (31) opens at least one of the first valve port (P6) and the second valve port (P7).

11. The control method of the thermal management system according to claim 10, characterized in that: The valve core assembly (31) comprises a first valve core portion (311) and a second valve core portion (312) arranged at an interval, a wall portion defining the first valve port (P6) is defined as a first valve port portion (103), and a wall portion defining the second valve port (P7) is defined as a second valve port portion (104), and 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; The second valve core portion (312) is controlled to abut against the second valve opening portion (104) according to the first comparison result, and a gap is provided between the first valve core portion (311) and the first valve opening portion (103).

12. The control method of the management system according to claim 10, characterized in that: The valve core assembly (31) comprises a first valve core portion (311) and a second valve core portion (312) which are arranged at intervals, the integrated device (1) comprises a first valve port portion (103) and a second valve port portion (104), the first valve port portion (103) comprises a first valve port (P6), the second valve port portion (104) comprises the second valve port (P7), and 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 second valve core part (312) is controlled to move to a position where a gap is formed between the second valve core part (312) and the second valve mouth part (104), and the first valve core part (311) is brought into contact with the first valve mouth part (103); or according to the second comparison result, the second valve core part (312) is controlled to move to a position where a gap is formed between the second valve core part (311) and the first valve mouth part (103), and a gap is formed between the first valve core part (311) and the first valve mouth part (103).

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