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 and a valve cavity, the integrated device comprises a heat exchange assembly, a connecting assembly and a valve assembly, the heat exchange assembly is provided with a first fluid inlet, and the connecting assembly is further provided with a first communicating port, a second communicating port and a third communicating port; the first communicating port communicates with the first fluid inlet, the second communicating port communicates with one end of the bypass channel, and the valve element assembly is configured to selectively communicate at least one of the first communicating port and the second communicating port with the third communicating port; therefore, the pressure loss of the oil medium passing through the integrated device is reduced.

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 oil medium when passing through the integrated device. 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 and a valve cavity, and the integrated device includes a heat exchange component, a connecting component and a valve core component, at least a portion of the valve core component is located in the valve cavity, the heat exchange component has a first fluid inlet, the connecting component is sealed and connected to the heat exchange component, and the connecting component covers the first fluid inlet, 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; wherein the connecting component also has a first connecting port, a second connecting port and a third connecting port, the first connecting port is connected to the first fluid inlet, the second connecting port is connected to the bypass channel, and the valve core component is configured to be able to connect the first connecting port and the second connecting port with the third connecting 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 portion of the wall of the valve cavity, the valve core component is located in the valve cavity, and the first 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 second connecting port to be connected to the bypass channel, the valve core component is configured to be able to connect the first connecting port and the second connecting port to the third connecting port, so that the third connecting port can be connected to both the first fluid inlet and the bypass channel through the valve core component. 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 in the heat exchange component, thereby reducing the flow path of the oil medium in the heat exchange component, 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 also provides a thermal management system, including an oil pump and the above-mentioned integrated device, the connecting assembly also has an inlet channel, the inlet channel is connected to the third connecting port, the oil pump has a first pump port, and the first pump port is connected to the inlet channel.

[0007] According to the thermal management system provided by an embodiment of the present invention, the valve core assembly is configured to be able to connect the first connecting port and the second connecting port with the third connecting port, so that the third connecting port can be connected to both the first fluid inlet and the bypass channel through the valve core assembly. 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 in the heat exchange assembly, thereby reducing the flow path of the oil medium in the heat exchange assembly, facilitating reducing the pressure loss of the oil medium when passing through the integrated device, and thereby reducing the power consumption of the oil pump.

[0008] On the other hand, an embodiment of the present invention also 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 rotation of the valve core assembly according to the comparison result so that the valve core assembly connects at least one of the first connecting port and the second connecting port with the third connecting 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 rotation of the valve core assembly is controlled according to the comparison result, so that the valve core assembly connects at least one of the first connecting port and the second connecting port with the third connecting 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 system structure 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 yes Figure 2 A schematic diagram of a three-dimensional structure of an integrated device shown in FIG.

[0013] Figure 4 yes Figure 3 A schematic diagram of a front view of an integrated device shown in FIG.

[0014] Figure 5 yes Figure 4 A schematic cross-sectional structural diagram of an integrated device in the AA direction is shown in FIG.

[0015] Figure 6 yes Figure 4 A schematic cross-sectional structural diagram of an integrated device in the BB direction is shown in FIG.

[0016] Figure 7 is a schematic diagram of a partial cross-sectional structure of an integrated device provided by an embodiment of the present invention;

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

[0018] Fig. 9 yes Figure 8 A schematic cross-sectional structure diagram of a combined structure of a first connecting member and a blocking cover used in the embodiment;

[0019] Fig.10 It is a three-dimensional structural schematic diagram of a valve core assembly provided by an embodiment of the present invention;

[0020] Fig.11 yes Figure 3 A three-dimensional schematic diagram of a first working state of an integrated device shown in FIG.

[0021] Fig.12 yes Figure 3 A three-dimensional schematic diagram of a second working state of an integrated device shown in FIG.

[0022] Fig.13 is a schematic diagram of the cross-sectional structure of a heat exchange component provided by an embodiment of the present invention;

[0023] Fig.14 It is a schematic block diagram of a control method of a thermal management system provided by an embodiment of the present invention.

[0024] Reference numerals:

[0025] 1. Integrated device; 101. Bypass channel; 102. Valve chamber; P1. First fluid inlet; P2. First fluid outlet; P3. First communication port; P4. Second communication port; P5. Third communication 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; 143. Pipe; 20. Connection assembly; 21. Inlet Channel; 22, outlet channel; 23, first connecting piece; 231, mounting portion; 24, second connecting piece; 25, plugging cover; 30, valve assembly; 31, valve core assembly; 311, conduction cavity; 312, mounting groove; 32, drive assembly; 321, drive member; 33, first sealing member; 34, second sealing member; 2, thermal management system; 40, first branch; 50, oil pump; 51, first pump port; 52, second pump port; 53, electric drive system. 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] Usually, a thermal management system is installed 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 heat exchange fluids can also be the same medium. The two heat exchange fluids flow in their 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. For example, it can exchange heat for the structure in the electronic control system of 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 and the viscosity is high. At this time, the flow resistance of the oil when passing through the heat exchanger will be very large, causing 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.

[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 system 53. 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. The outlet channel of the integrated device 1 can be connected to the electric drive system 53. Among them, the first branch 40 can include devices such as an oil tank, and the electric drive system 53 can include an electric drive system such as an engine. The fluid flowing out of the integrated device 1 can cool the engine and other structures in the electric drive system 53.

[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.

[0030] In some embodiments, the thermal management system 2 also includes a refrigerant branch, the channel in the refrigerant branch is connected to the second heat exchange channel 142 in the heat exchange component 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.

[0031] In order to reduce the occupied space of the thermal management system 2 and facilitate the bypass function of the heat exchange component 10, please refer to Figures 2 to 13 The embodiment of the present invention further provides an integrated device 1, which has a bypass channel 101 and a valve chamber 102. The integrated device 1 includes a heat exchange component 10, a connection component 20 and a valve component 30. The heat exchange component 10 has a first fluid inlet P1, a first fluid outlet P2 and a first heat exchange channel 141. The first fluid inlet P1 and the first fluid outlet P2 are connected through the first heat exchange channel 141. The connection component 20 is sealed and connected to the heat exchange component 10, and the connection component 20 covers the first fluid inlet P1. The connection component 20 has an inlet channel 21, which can be connected to the first pump port 51 of the oil pump 50. The medium oil flowing out of the first pump port 51 of the oil pump 50 can enter the integrated device 1 through the inlet channel 21.

[0032] The connection assembly 20 forms at least a portion of the wall of the bypass channel 101, and the connection assembly 20 forms at least a portion of the wall of the valve cavity 102. The valve assembly 30 includes a valve core assembly 31, and at least a portion of the valve core assembly 31 is located in the valve cavity 102. The connection assembly 20 also has a first communication port P3, a second communication port P4, and a third communication port P5. The first communication port P3 is communicated with the first fluid inlet P1, the second communication port P4 is communicated with one end of the bypass channel 101, and the third communication port P5 is communicated with the inlet channel 21. The valve core assembly 31 is configured to selectively connect at least one of the first communication port P3 and the second communication port P4 to the third communication port P5. Through the above arrangement, the inlet channel 21 can be connected to at least one of the bypass channel 101 and the first heat exchange channel 141 through the valve core assembly 31. When the integrated device 1 of the embodiment of the invention is applied to the thermal management system 2 of the vehicle, for example, when the vehicle is just started or the vehicle is running in a cold environment, the valve core assembly 31 can be controlled to connect the inlet channel 21 with the bypass channel 101, or the valve core assembly 31 can be controlled to connect the inlet channel 21 with both the bypass channel 101 and the first heat exchange channel 141, so as to reduce or avoid oil from entering the first heat exchange channel 141 of the heat exchange assembly 10. When the fluid temperature returns to the temperature threshold, the valve core assembly 31 can be controlled to connect the inlet channel 21 with the first heat exchange channel 141, so as to facilitate heat exchange of the oil through the heat exchange assembly 10. In some other embodiments, the thermal management system 2 can also be used in other devices such as air conditioners.

[0033] In some embodiments, the connection assembly 20 further has an outlet channel 22, which is connected to the other end of the bypass channel 101. The connection assembly 20 can cover the first fluid outlet P2, and the outlet channel 22 is connected to the first fluid outlet P2. Through the above arrangement, the oil flowing out of the bypass channel 101 and the first fluid outlet P2 can flow out of the integrated device 1 through the outlet channel 22.

[0034] Combination Figures 8 to 12 In some embodiments, the first fluid inlet P1 and the first fluid outlet P2 are located on the same side of the heat exchange component 10, the connecting component 20 covers the first fluid outlet P2, the first connecting port P3 is at least partially opposite to the first fluid inlet P1, and the opening of the outlet channel 22 close to the side of the heat exchange component 10 is at least partially opposite to the first fluid outlet P2. Through the above arrangement, the loss of the medium oil when it circulates between the connecting component 20 and the heat exchange component 10 can be reduced.

[0035] In some other embodiments, the first fluid inlet P1 and the first fluid outlet P2 may be located at different sides of the heat exchange component 10, for example Fig.12 In the embodiment, the first fluid inlet P1 and the first fluid outlet P2 can be arranged on both sides of the height direction of the heat exchange component 10. At this time, the connecting component 20 can include a connecting pipe, which connects the port of the bypass channel 101 with the first fluid outlet P2, and the outlet channel 22 can be located in the connecting pipe.

[0036] Further reading Figures 2 to 13 In some embodiments, 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 a plurality of stacked heat exchange plates 131. 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 first fluid inlet P1 and the first fluid outlet P2 are both located on the first side plate 11, and the refrigerant inlet and the refrigerant outlet can both be located on the second side plate 12. The heat exchange assembly 10 also has a second heat exchange channel 142. The second heat exchange channel 142 is isolated from the first heat exchange channel 141, and a heat conduction is arranged between the second heat exchange channel 142 and the first heat exchange channel 141. The second heat exchange channel 142 is isolated from the bypass channel 101. In this article, the isolation of the two channels means that the two channels are not connected, and the fluids flowing in the two channels cannot interact.

[0037] Based on this, to facilitate the circulation of the refrigerant, the integrated device 1 may further include a connecting pipe 143, which is sealed with the second side plate 12, and the flow channel in the connecting pipe 143 is connected with the second heat exchange channel 142. The second fluid inlet and the second fluid outlet may be located at the connecting pipe 143.

[0038] Further, the connection assembly 20 includes a first connection member 23, and the first connection member 23 is sealed and connected to the first side plate 11, so as to reduce the leakage of the fluid when the medium flows between the first connection member 23 and the heat exchange assembly 10. The first connection member 23 and the first side plate 11 jointly define at least part of the wall of the bypass channel 101. In a specific implementation, the first connection member 23 has a groove structure, and the first side plate 11 and the first connection member 23 are sealed and arranged, and the first side plate 11 covers the groove structure to form the bypass channel 101. Through the above arrangement, it is convenient to simplify the structure of the first connection member 23.

[0039] Or, if Figures 6 to 9 As shown, the first connecting member 23 defines the peripheral wall portion of the bypass channel 101, and the connecting assembly 20 includes a plugging cover 25, which is sealed with the first connecting member 23, and the plugging cover 25 blocks the side of the bypass channel 101 away from the second connecting port P4. Through the above arrangement, the bypass channel 101 is formed in the connecting assembly 20, which is convenient for reducing leakage of the bypass channel 101.

[0040] In order to realize the action of the valve core assembly 31, in some embodiments, the valve assembly 30 further includes a driving assembly 32, wherein the driving assembly 32 includes a driving member 321, which can be a motor or a combination of a motor and a reduction structure, and the driving member 321 is connected to the valve core shaft of the valve core assembly 31 by transmission, wherein the driving member 321 and the valve core shaft of the valve core assembly 31 are connected by transmission in the following manners, but not limited to: for example, the driving member 321 and the valve core shaft can be interference fit, or connected by a key, or meshed by a tooth shape, or a non-circular shaped hole is set on one of the driving member 321 and the valve core shaft of the valve core assembly 31, and a shaped shaft segment matching the shaped hole is set on the other, and the shaped shaft segment is embedded in the shaped hole with clearance fit. Through the above-mentioned arrangement, the driving member 321 can drive the valve core assembly 31 to move, so that the integrated device 1 can switch different working modes, so that the thermal management system can adapt to different working environments.

[0041] Optionally, the driving assembly 32 may also include a control member such as a circuit board, and the control member may control the rotation of the driving member 321, so that the driving member 321 controls the rotation of the valve core assembly 31. Through the above arrangement, it is convenient to quickly control the movement of the valve core assembly 31 through the driving assembly 32. Compared with the valve core structure made of a material that expands and contracts with heat and contracts to control the opening and closing of the bypass channel, the integrated device 1 of the embodiment of the present invention has a faster response speed and control accuracy.

[0042] like Figures 2 to 8As shown, the connection assembly 20 also includes a second connection member 24, and the second connection member 24 is connected to the first connection member 23. Specifically, the first connection member 23 includes a mounting portion 231, and the mounting portion 231 is located on the side of the first connection member 23 away from the heat exchange assembly 10. Fasteners such as screws are inserted into the mounting portion 231, and the second connection member 24 is connected to the first connection member 23. Further, the drive assembly 32 is connected to the second connection member 24, and along the axial direction of the valve core assembly 31, the projection of the drive assembly 32 at least partially overlaps with the projection of the heat exchange assembly 10. Through the above arrangement, the installation limit of the drive assembly 32 is facilitated, and the structure of the integrated device 1 is more compact.

[0043] like Figure 6 and Fig.10 As shown, in some embodiments, the outer peripheral surface of the main body of the valve core assembly 31 is a cylindrical surface or a conical surface, and the valve assembly 30 further includes a first sealing member 33, which is located between the side wall defining the valve cavity 102 and the valve core assembly 31, and the first sealing member 33 surrounds the valve core assembly 31. Through the above arrangement, it is convenient to reduce the leakage of oil in the valve cavity 102 to the outside of the valve cavity 102.

[0044] In a specific implementation, at least one of the valve core assembly 31 and the first connecting member 23 includes a groove structure, a portion of the first sealing member 33 is limitedly disposed in the groove structure, and along the radial direction of the valve core assembly 31, the first sealing member 33 is sandwiched between the side wall defining the valve cavity 102 and the circumferential wall surface of the valve core assembly 31, so as to reduce the leakage of the integrated device 1 at the corresponding position of the valve assembly 30. For example Fig.10 In the embodiment, the valve core assembly 31 has a mounting groove 312 , the mounting groove 312 surrounds the rotation axis of the valve core assembly 31 , and the first sealing member 33 can be limitedly disposed in the mounting groove 312 .

[0045] In order to further improve the sealing performance of the integrated device 1 and reduce the internal leakage of the integrated device 1 at the corresponding position of the valve assembly 30, as shown in FIG. Figure 7 As shown, in some embodiments, the integrated device 1 includes a second sealing member 34 , and along the radial direction of the valve core assembly 31 , the second sealing member 34 is located between the wall defining the valve cavity 102 and the valve core assembly 31 .

[0046] Alternatively, in some other embodiments, since a small amount of internal leakage of the valve assembly 30 has little effect on whether the heat exchange assembly 10 is bypassed by the bypass channel 101, in order to simplify the structure of the integrated device 1, in some embodiments, as shown in Figure 6, the valve core assembly 31 is matched with the wall clearance defining the valve cavity 102. For example, the clearance between the valve core assembly 31 and the wall defining the valve cavity 102 is less than 0.1 mm. In this case, structures such as the second seal 34 can be omitted, which facilitates reducing the driving force for the rotation of the valve core assembly 31, reducing the number of parts of the integrated device 1, and simplifying the structure of the integrated device 1.

[0047] In order to realize the control function of the valve assembly 30 on the fluid flow path, in some embodiments, the valve core assembly 31 can rotate, and the valve core assembly 31 has a conducting cavity 311, and the conducting cavity 311 can connect at least one of the first connecting port P3 and the second connecting port P4 with the third connecting port P5. Optionally, the fluid cross-sectional area of ​​the conducting cavity 311 is uniformly set. Fig.10 As shown, the conducting cavity 311 can be a groove structure recessed from the outer peripheral wall of the valve core assembly 31 toward the interior of the valve core assembly 31 , and along the axial direction of the valve core assembly 31 , the groove structure for limiting the first sealing member 33 is spaced apart from the conducting cavity 311 .

[0048] Combining the above possible implementation methods, such as Fig.11 and Fig.12 As shown, in some embodiments, the integrated device 1 has at least one of the following working modes:

[0049] like Fig.11 As shown, in the first working mode of the integrated device 1, the valve core assembly 31 is located in the first position, the third connecting port P5 is connected to the first connecting port P3, and the valve core assembly 31 closes the second connecting port P4. At this time, the inlet channel 21 is connected to the outlet channel 22 through the valve core assembly 31, the first fluid inlet P1, and the first heat exchange channel 141. When the integrated device 1 is applied to the thermal management system 2, the thermal management system 2 is in the first mode at this time. In this first mode, the medium oil flowing out of the first pump port 51 of the oil pump 50 flows out of the outlet channel 22 after passing through the inlet channel 21, the valve core assembly 31, and the first heat exchange channel 141, and the medium oil rarely flows through the bypass channel 101. In this article, the valve core assembly 31 closes the connecting port, which means that the fluid cannot flow out of the connecting port or the fluid flowing out of the connecting port is very small. In the first working mode of the integrated device 1, the medium oil can exchange heat with the refrigerant, and then dissipate heat to the electric drive system 53.

[0050] like Fig.12 As shown, in the second working mode of the integrated device 1, the valve core assembly 31 is located in the second position, the third connecting port P5 is connected to the second connecting port P4, and the valve core assembly 31 closes the first connecting port P3. At this time, the inlet channel 21 is connected to the outlet channel 22 through the valve core assembly 31 and the bypass channel 101. At this time, the heat exchange assembly 10 can be completely bypassed, and this is defined as the full bypass mode. When the integrated device 1 is applied to the thermal management system 2, the thermal management system 2 is in the second mode at this time. In this second mode, the medium oil flowing out of the first pump port 51 of the oil pump 50 passes through the inlet channel 21, the valve core assembly 31, and the bypass channel 101 and then flows out of the outlet channel 22. The medium oil rarely flows through the first heat exchange channel 141, which is convenient for reducing the pressure loss caused by the fluid flowing through the first heat exchange channel 141.

[0051] In the third working mode of the integrated device 1, the valve core assembly 31 is located at the third position, the third communication port P5 is connected to the first communication port P3, the third communication port P5 is connected to the second communication port P4, the inlet channel 21 is connected to the outlet channel 22 through the valve core assembly 31 and the bypass channel 101, and the inlet channel 21 is connected to the outlet channel 22 through the valve core assembly 31, the first fluid inlet P1, and the first heat exchange channel 141. When the integrated device 1 is applied to the thermal management system 2, the thermal management system 2 is in the third working mode at this time. In this third working mode, the medium oil flowing out of the first pump port 51 of the oil pump 50 is divided into two paths after passing through the inlet channel 21, one of which flows out of the outlet channel 22 after passing through the valve core assembly 31 and the bypass channel 101, and the other flows out of the outlet channel 22 after passing through the valve core assembly 31 and the first heat exchange channel 141. At this time, the heat exchange assembly 10 can be partially bypassed, which is defined as a partial bypass mode.

[0052] 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.

[0053] In summary, according to the integrated device 1 provided in the embodiment of the present invention, the connecting component 20 is sealedly connected to the heat exchange component 10, and 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, and the first connecting port P3 of the connecting component 20 is connected to the first fluid inlet P1 of the heat exchange component 10, which is convenient for the integration of the integrated device 1, and is convenient for reducing the pipeline setting between the valve component 30 and the heat exchange component 10, which is conducive to reducing the space occupied by the integrated device 1; further, by setting the second connecting port P4 and the bypass channel 101, One end is connected, and the valve core assembly 31 is configured to selectively connect at least one of the first connecting port P3 and the second connecting port P4 with the third connecting port P5, so that the third connecting port P5 can be selectively connected with at least one of the first fluid inlet P1 and the bypass channel 101 through the valve core assembly 31. 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, thereby reducing the pressure loss of the oil medium when passing through the integrated device 1.

[0054] On the other hand, combined with Figures 1 to 14 As shown, 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, as shown in FIG. Fig.14As shown, the control method of the thermal management system includes:

[0055] Step S110, comparing the temperature of the fluid in the first branch 40 with the temperature threshold to obtain a comparison result;

[0056] Step S120 , controlling the valve core assembly 31 to rotate according to the comparison result, so that the valve core assembly 31 connects at least one of the first communication port P3 and the second communication port P4 with the third communication port P5 .

[0057] 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 fluid temperature is relatively low, and the electric drive system 53 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 system 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, etc., and the present invention is not limited thereto.

[0058] 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.

[0059] In some embodiments, a method for controlling a thermal management system includes:

[0060] 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;

[0061] Step S121 , control the valve core assembly 31 to rotate according to the first comparison result, so that the valve core assembly 31 connects the second communication port P4 with the third communication port P5 , or connects the first communication port P3 , the second communication port P4 with the third communication port P5 .

[0062] Through the above arrangement, it is possible to prevent or reduce the oil medium from entering the heat exchange component 10, thereby facilitating the rapid increase of the fluid temperature and reducing the loss of the oil pump 50.

[0063] Optionally, the temperature threshold may include a first temperature threshold and a second temperature threshold, and the second temperature threshold is less than the first temperature threshold. In this case, the control method of the thermal management system includes:

[0064] 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;

[0065] Step 2: Control the valve core assembly 31 to rotate according to the first result, so that the valve core assembly 31 connects the second communication port P4 with the third communication port P5.

[0066] 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;

[0067] Step 4: Control the valve core assembly 31 to rotate according to the first result, so that the valve core assembly 31 connects the first communication port P3 and the second communication port P4 with the third communication port P5.

[0068] 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.

[0069] Furthermore, in some embodiments, the control method of the thermal management system includes:

[0070] 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;

[0071] Step S122 , controlling the valve core assembly 31 to rotate according to the second comparison result, so that the valve core assembly 31 connects the first communication port P3 with the third communication port P5 , and the valve core assembly 31 closes the second communication port P4 .

[0072] 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.

[0073] 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) and a valve chamber (102), and comprises a heat exchange component (10), a connection component (20) and a valve core component (31), at least part of the valve core component (31) is located in the valve chamber (102), 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 part of the wall of the bypass channel (101), and the connection component (20) forms at least part of the wall of the valve chamber (102); Wherein, the connecting component (20) also has 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 first fluid inlet (P1), the second connecting port (P4) is connected to the bypass channel (101), and the valve core component (31) is configured to be able to connect the first connecting port (P3), the second connecting port (P4) and the third connecting port (P5).

2. The integrated device (1) according to claim 1, 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); The connecting assembly (20) further comprises an inlet channel (21) and an outlet channel (22), wherein the inlet channel (21) is in communication with the third communication port (P5), the outlet channel (22) is in communication with the other end of the bypass channel (101), and the outlet channel (22) is in communication with the first fluid outlet (P2).

3. The integrated device (1) according to claim 2, characterized in that The first fluid inlet (P1) and the first fluid outlet (P2) are located on the same side of the heat exchange component (10), the connecting component (20) covers the first fluid outlet (P2), the first connecting port (P3) is at least partially opposite to the first fluid inlet (P1), and the opening of the outlet channel (22) close to the side of the heat exchange component (10) is at least partially opposite to the first fluid outlet (P2).

4. The integrated device (1) according to claim 2, 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 third communication port (P5) is communicated with the first communication port (P3), the valve core assembly (31) closes the second communication port (P4), and the inlet channel (21) is communicated with the outlet channel (22) via the valve core assembly (31), 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, the third communication port (P5) is communicated with the second communication port (P4), the valve core assembly (31) closes the first communication port (P3), and the inlet channel (21) is communicated with the outlet channel (22) through the valve core assembly (31) and the bypass channel (101); In the third working mode, the valve core assembly (31) is located at the third position, the third communication port (P5) is communicated with the first communication port (P3), the third communication port (P5) is communicated with the second communication port (P4), the inlet channel (21) is communicated with the outlet channel (22) through the valve core assembly (31) and the bypass channel (101), and the inlet channel (21) is communicated with the outlet channel (22) through the valve core assembly (31), the first fluid inlet (P1), and the first heat exchange channel (141).

5. The integrated device (1) according to claim 2, characterized in that The heat exchange component (10) further comprises a second heat exchange channel (142), the second heat exchange channel (142) and the first heat exchange channel (141) are isolated from each other, heat conduction is arranged between the second heat exchange channel (142) and the first heat exchange channel (141), and the second heat exchange channel (142) and the bypass channel (101) are isolated from each other.

6. The integrated device (1) according to any one of claims 1 to 5, characterized in that: The heat exchange component (10) comprises a first side plate (11), the first fluid inlet (P1) is located on the first side plate (11), the connection component (20) comprises a first connection member (23), and the first connection member (23) is sealedly connected to the first side plate (11); The first connecting member (23) and the first side plate (11) jointly define at least a portion of the peripheral wall of the bypass channel (101), or the first connecting member (21) defines a wall portion of the bypass channel (101), and the connecting assembly (20) includes a plugging cover (25), the plugging cover (25) is sealed with the first connecting member (23), and the plugging cover (25) blocks a side of the bypass channel (101) away from the second connecting port (P4).

7. The integrated device (1) according to claim 6, characterized in that The connection assembly (20) further comprises a second connection member (24), wherein the second connection member (24) is connected to the first connection member (23); The integrated device (1) further comprises a driving assembly (32) connected to the second connecting member (24), wherein the driving assembly (32) comprises a driving member (321), wherein the driving member (321) is capable of driving the valve core assembly (31) to rotate, and wherein the driving assembly (32) is connected to the second connecting member (24), and along the axial direction of the valve core assembly (31), a projection of the driving assembly (32) at least partially overlaps with a projection of the heat exchange assembly (10).

8. The integrated device (1) according to any one of claims 1 to 5, characterized in that: The outer peripheral surface of the main body of the valve core assembly (31) is a cylindrical surface or a conical surface. The integrated device (1) further comprises a first sealing member (33). The first sealing member (33) is located between a side wall defining the valve cavity (102) and the valve core assembly (31), and the first sealing member (33) surrounds the valve core assembly (31). The valve core assembly (31) is in clearance with the wall defining the valve cavity (102), or the integrated device (1) includes a second sealing member (34), and along the radial direction of the valve core assembly (31), the second sealing member (34) is located between the wall defining the valve cavity (102) and the valve core assembly (31).

9. The integrated device (1) according to claim 8, characterized in that The valve core assembly (31) is rotatable, and the valve core assembly (31) has a conducting cavity (311), and the conducting cavity (311) is capable of connecting at least one of the first communication port (P3) and the second communication port (P4) with the third communication port (P5); The fluid cross-sectional area of ​​the conduction cavity (311) is uniformly arranged.

10. A thermal management system (2), characterized in that: It comprises an oil pump (50) and an integrated device (1) as described in any one of claims 1 to 8, wherein the connecting assembly (20) further comprises an inlet channel (21), wherein the inlet channel (21) is connected to the third connecting port (P5), and the oil pump (50) comprises a first pump port (51), wherein the first pump port (51) is connected to the inlet channel (21).

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 assembly (31) is controlled to operate according to the comparison result, so that the valve core assembly (31) connects at least one of the first communication port (P3) and the second communication port (P4) with the third communication port (P5).

12. The control method of the thermal management system according to claim 11, 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; The valve core assembly (31) is controlled to rotate according to the first comparison result, so that the valve core assembly (31) connects the second communication port (P4) with the third communication port (P5), or the valve core assembly (31) connects both the first communication port (P3) and the second communication port (P4) with the third communication port (P5).

13. The control method of the management system according to claim 11, 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; The valve core assembly (31) is controlled to rotate according to the second comparison result, so that the valve core assembly (31) connects the first communication port (P3) with the third communication port (P5), and the valve core assembly (31) closes the second communication port (P4).

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