Thermal management device and control valve

Abstract

The utility model discloses a thermal management device and a control valve, the thermal management device comprises a runner plate assembly, a valve core assembly, a valve driving assembly and a sealing element, the runner plate assembly comprises a first runner plate and a cover body, the runner plate assembly is provided with a valve cavity, the valve core assembly comprises a transmission shaft, and the cover body comprises an annular supporting part. The space defined by the annular supporting part communicates with the valve cavity, the inner surface side of the annular supporting part is partially sleeved with the transmission shaft, the valve driving assembly comprises a first driving shell and an output gear, the first driving shell comprises a bottom plate part and an annular protruding part protruding out of the bottom plate part, and the inner surface side of the annular protruding part is partially sleeved with the output gear. The transmission shaft is connected with the output gear in a limiting mode, the sealing piece abuts against the position between the annular protruding part and the output gear in the radial direction of the output gear, one side of the sealing piece abuts against the annular supporting part in the axial direction of the sealing piece, and the other side of the sealing piece abuts against the bottom plate part, so that sealing of the heat management device can be achieved, and meanwhile the structure of the heat management device is simplified.

Description

Technical Field

[0001] This utility model relates to the field of thermal management technology, and in particular to a thermal management device and control valve for vehicles or energy storage. Background Technology

[0002] The thermal management device includes a drive assembly, a valve assembly, and multiple fluid channels. The drive assembly drives the valve core in the valve assembly to rotate, thereby switching the flow paths of the multiple fluid channels.

[0003] To achieve a sealed thermal management device, multiple sets of sealing gaskets are usually required, resulting in a complex structure. Utility Model Content

[0004] Based on this, the present application provides a thermal management device and a control valve, which can reduce the number of parts and simplify the structure of the thermal management device while achieving sealing.

[0005] On one hand, the present application provides a thermal management device, which includes a flow channel plate assembly, a valve core assembly, a valve drive assembly, and a seal. The flow channel plate assembly includes a first flow channel plate and a cover. The flow channel plate assembly has a valve cavity. The first flow channel plate and the cover both define a portion of the wall of the valve cavity. The valve core assembly includes a drive shaft. The cover includes an annular support portion. The space defined by the annular support portion communicates with the valve cavity. A portion of the drive shaft is sleeved on the inner surface side of the annular support portion. The valve drive assembly includes a first drive housing and an output gear. The first drive housing includes a base plate portion and an annular protrusion portion protruding from the base plate portion. A portion of the output gear is sleeved on the inner surface side of the annular protrusion portion. The drive shaft is limitedly connected to the output gear. Along the radial direction of the output gear, the seal abuts between the annular protrusion portion and the output gear. Along the axial direction of the seal, one side of the seal abuts against the annular support portion, and the other side of the seal abuts against the base plate portion.

[0006] According to the thermal management device provided in this application, the first drive housing of the valve drive assembly includes an annular protrusion, and a portion of the output gear is sleeved on the inner surface of the annular protrusion. Along the radial direction of the output gear, a seal abuts between the annular protrusion and the output gear, so that the seal can form a sealing structure between the inner surface of the annular protrusion and the outer surface of the output gear. In this application, the cover includes an annular support, and a portion of the drive shaft of the valve core assembly is sleeved on the inner surface of the annular support. Along the axial direction of the seal, one side of the seal abuts against the annular support, and the other side of the seal abuts against the base plate, so that the seal can form a sealing structure between the base plate and the annular support. This is beneficial to reduce or prevent water vapor or fluid from outside the valve drive assembly from entering the valve drive assembly, and to reduce or prevent fluid leakage from inside the valve cavity to the outside of the thermal management device. The technical solution of this application forms a sealing structure on both the radial surface and the axial end face of the seal, which helps to reduce the number of seals in the thermal management device and simplifies the structure of the thermal management device.

[0007] On the other hand, the present application also provides a control valve, which includes a valve body assembly, a valve core assembly, a valve drive assembly, and a seal. The valve body assembly includes a main valve body and a cover body, and the valve body assembly has a valve cavity. The main valve body and the cover body each define a portion of the wall of the valve cavity. The valve core assembly includes a drive shaft, and the cover body includes an annular support portion. The space defined by the annular support portion communicates with the valve cavity. A portion of the drive shaft is sleeved on the inner surface side of the annular support portion. The valve drive assembly includes a first drive housing and an output gear. The first drive housing includes a base plate portion and an annular protrusion portion protruding from the base plate portion. A portion of the output gear is sleeved on the inner surface side of the annular protrusion portion. The drive shaft is limitedly connected to the output gear. Along the radial direction of the output gear, the seal abuts between the annular protrusion portion and the output gear. Along the axial direction of the seal, one side of the seal abuts against the annular support portion, and the other side of the seal abuts against the base plate portion.

[0008] According to the control valve provided in this application, the first drive housing of the valve drive assembly includes an annular protrusion, and a portion of the output gear is sleeved on the inner surface of the annular protrusion. Along the radial direction of the output gear, a seal abuts between the annular protrusion and the output gear, so that the seal can form a sealing structure between the inner surface of the annular protrusion and the outer surface of the output gear. In this application, the cover includes an annular support, and a portion of the drive shaft of the valve core assembly is sleeved on the inner surface of the annular support. Along the axial direction of the seal, one side of the seal abuts against the annular support, and the other side of the seal abuts against the base plate, so that the seal can form a sealing structure between the base plate and the annular support. This is beneficial to reduce or prevent water vapor or fluid from entering the valve drive assembly from outside, and to reduce or prevent fluid leakage from inside the valve cavity to the outside of the control valve. The technical solution of this application, by forming a sealing structure on both the radial surface and the axial end face of the seal, facilitates the reduction of the number of seals in the control valve and simplifies the structure of the control valve. Attached Figure Description

[0009] Figure 1 This is a three-dimensional structural diagram of the thermal management device provided in the first embodiment of the present invention, showing its layout at one angle.

[0010] Figure 2 yes Figure 1 The diagram shows a partially exploded view of a thermal management device.

[0011] Figure 3 yes Figure 1 The diagram shows a partial front view of a thermal management device.

[0012] Figure 4 yes Figure 3 The diagram shows a cross-sectional view of a thermal management device along the AA direction.

[0013] Figure 5 yes Figure 4 The diagram shows an enlarged structural schematic of a thermal management device at point Q1.

[0014] Figure 6 yes Figure 3 The diagram shows a partial cross-sectional view of a thermal management device along the BB direction.

[0015] Figure 7 yes Figure 1 The diagram shows a three-dimensional structure of a threaded sleeve.

[0016] Figure 8 yes Figure 7 The diagram shows a cross-sectional structure of a threaded sleeve.

[0017] Figure 9 yes Figure 1 The diagram shows a three-dimensional structure of a cover.

[0018] Figure 10 yes Figure 1 The diagram shows a three-dimensional structure of a valve drive assembly.

[0019] Figure 11 yes Figure 10 A partial structural schematic diagram of a valve actuation assembly is shown in the figure;

[0020] Figure 12 This is a partially exploded structural diagram of the thermal management device provided in the second embodiment of the present invention;

[0021] Figure 13 This is a partially exploded structural diagram of the thermal management device provided in the third embodiment of the present invention;

[0022] Figure 14 yes Figure 13 The diagram shows a partial three-dimensional structure of a thermal management device.

[0023] Figure 15 yes Figure 14 The diagram shows a partial cross-sectional structure of a thermal management device.

[0024] Figure 16 This is a partially exploded structural diagram of the thermal management device provided in the fourth embodiment of the present invention;

[0025] Figure 17 This is a partially exploded structural diagram of the thermal management device provided in the fifth embodiment of the present invention;

[0026] Figure 18 yes Figure 17 The diagram shows a partial three-dimensional structure of a thermal management device.

[0027] Figure 19 This is a schematic diagram of the cross-sectional structure of a control valve provided in an embodiment of this utility model.

[0028] Figure label:

[0029] 1. Thermal management device; 100. Flow channel plate assembly; 101. Valve chamber; 102. Pump chamber; 11. First flow channel plate; 12. Cover; 121. Annular support part; 120. Limiting part; 122. Receiving cavity; 123. Plate part; 125. First threaded structure; 126. Plate part; 127. Support column; 128. Outer shell part; 129. Rib part; 13. Gap channel; 14. Fluid channel; 20. Valve core assembly; 21. Core body; 22. Drive shaft; 30. Valve drive assembly; 301. Drive cavity; 31. First drive shell; 311. Base plate part; 312. Annular protrusion part; 3121. Flange structure; 313. Opening; 314. Mating part; 315. Mounting part; 316. Limiting block; 32. Output gear; 320. Output shaft; 321. Installation space; 33. Motor; 34. Second drive housing; 35. First electrical connection terminal; 351. First terminal housing; 36. Circuit board; 40. Seal; 41. Elastic part; 410. Main body; 411. Sealing lip; 412. Groove; 50. Threaded sleeve; 51. Second threaded structure; 52. Protrusion; 53. Limiting groove; 54. Snap-fit ​​part; 61. Snap ring; 62. Fastener; 70. Control assembly; 71. Control cavity; 72. Control board; 73. Second electrical connection terminal; 731. Second terminal housing; 74. Control housing; 200. Control valve; 80. Valve body assembly; 81. Main valve body. Detailed Implementation

[0030] The features and exemplary embodiments of various aspects of this utility model will now be described in detail. To make the objectives, technical solutions, and advantages of this utility model clearer, the embodiments will be further described in detail below with reference to the accompanying drawings. In this document, relational terms such as "first" and "second" are used merely to distinguish one component from another that has the same name, and do not necessarily require or imply any such actual relationship or order between these components.

[0031] The thermal management system includes a coolant system and a refrigerant system. It includes heat exchange components such as an evaporator or condenser. The coolant in the coolant system and the refrigerant in the refrigerant system can exchange heat in these heat exchange components, for example, in an evaporator or condenser. The coolant or refrigerant can flow in the loop of the thermal management system to achieve its heat exchange function. In this embodiment, the thermal management system can be a vehicle thermal management system, capable of exchanging heat for the battery, motor, passenger compartment, etc. Alternatively, it can be an energy storage thermal management system.

[0032] like Figures 1 to 6As shown, in order to reduce the space occupied by the thermal management system, this utility model embodiment provides a thermal management device 1, the coolant assembly including a flow channel plate assembly 100, the flow channel plate assembly 100 having a coolant channel, and the coolant can flow in the coolant channel.

[0033] To integrate multiple flow paths in the thermal management device 1 and to enable the thermal management device 1 to switch the flow paths of the fluid, the thermal management device 1 includes a flow channel plate assembly 100, a valve core assembly 20, a valve actuation assembly 30, and a seal 40. Along the axial direction of the seal 40, a portion of the valve actuation assembly 30 is arranged parallel to the flow channel plate assembly 100. The flow channel plate assembly 100 includes a first flow channel plate 11 and a cover 12, and the flow channel plate assembly 100 has a valve cavity 101, with both the first flow channel plate 11 and the cover 12 defining a portion of the wall of the valve cavity 101. The first flow channel plate 11 and the cover 12 are sealed together. Specifically, the first flow channel plate 11 and the cover 12 can be sealed by welding, bonding, or a sealing ring can be provided between the first flow channel plate 11 and the cover 12. The first flow channel plate 11 and the cover 12 are fastened together by fasteners, and the sealing ring and the first flow channel plate 11 and the cover 12 form a sealing surface to prevent fluid from leaking from the connection between the first flow channel plate 11 and the cover 12.

[0034] The first flow channel plate 11 has multiple communication ports. The valve core assembly 20 includes a core 21 and a drive shaft 22. The core 21 is located in the valve cavity 101. The drive shaft 22 is positioned and integrated with the core 21, or it is an integral structure. The drive shaft 22 can drive the core 21 to rotate to achieve connection or switching of at least two communication ports. In this embodiment of the present invention, the core 21 and the drive shaft 22 can be an integral injection molded part, and a portion of the drive shaft 22 can be located outside the valve cavity 101. The outer peripheral surface of the core 21 can include a spherical surface or a cylindrical surface, which is not limited in this application.

[0035] The cover 12 includes a plate portion 123 and an annular support portion 121. The annular support portion 121 protrudes from the plate portion 123 toward the valve drive assembly 30. The plate portion 123 can define the top wall surface of the valve cavity 101. The space defined by the annular support portion 121 communicates with the valve cavity 101. A portion of the drive shaft 22 is sleeved on the inner surface side of the annular support portion 121, and at least a portion of the drive shaft 22 passes through the annular support portion 121 and is located outside the valve cavity 101.

[0036] The valve drive assembly 30 includes a first drive housing 31 and an output gear 32. The first drive housing 31 includes a base plate 311 and an annular protrusion 312 protruding from the base plate 311 toward the core 21. A portion of the output gear 32 is fitted onto the inner surface of the annular protrusion 312. The drive shaft 22 is connected to the output gear 32 in a limiting connection. For example, the drive shaft 22 and the output gear 32 can be connected by a toothed structure, a spline structure, or a key structure. Alternatively, a non-standard drive shaft can be provided and connected to the output gear 32, so that the output gear 32 can drive the drive shaft 22 to rotate synchronously.

[0037] Along the radial direction of the output gear 32, the seal 40 abuts against the annular protrusion 312 and the output gear 32, so that the seal 40 can form a sealing structure between the inner surface of the annular protrusion 312 and the outer surface of the output gear 32. Along the axial direction of the seal 40, one side of the seal 40 abuts against the annular support 121, and the other side of the seal 40 abuts against the base plate 311, so that the seal 40 can form a sealing structure between the base plate 311 and the annular support 121. This helps to reduce or prevent water vapor or fluid from entering the valve drive assembly 30 from outside, and also helps to reduce or prevent fluid leakage from the valve cavity 101 to the outside of the thermal management device 1. Compared with setting sealing gaskets in the valve drive assembly and the valve cavity respectively to achieve sealing of the valve drive assembly and reduce fluid leakage from the valve cavity, the technical solution of this application forms a sealing structure on both the radial surface and the axial end face of the seal 40, which helps to reduce the number of seals 40 in the thermal management device and simplifies the structure of the thermal management device 1.

[0038] Please refer to further information. Figures 4 to 6 In some embodiments, the valve actuation assembly 30 has a drive chamber 301. The valve actuation assembly 30 also includes a motor 33, a reduction gear assembly, and a circuit board 36. The circuit board 36 is electrically connected to the conductive parts of the motor 33. The output shaft of the motor 33 is drivenly connected to the reduction gear assembly, and the reduction gear assembly is drivenly connected to the output gear 32, so that power can be transmitted between the motor 33, the reduction gear assembly, and the output gear 32. A first drive housing 31 defines a portion of the wall of the drive chamber 301. The first drive housing 31 has an opening 313. The output gear 32 includes an output shaft 320. One portion of the output shaft 320 is located inside the opening 313, and the other portion of the output shaft 320 is located outside the drive chamber 301. Along the radial direction of the output shaft 320, a seal 40 abuts against the annular protrusion 312 and the output shaft 320. With the above configuration, the seal 40 can form a sealing structure between the annular protrusion 312 of the first drive housing 31 and the output shaft 320, which can reduce or prevent external moisture and other structures from entering the drive cavity 301 and prevent damage to components such as the circuit board 36.

[0039] To achieve a limiting connection between the drive shaft 22 and the output shaft 320 of the valve core assembly 20, in some embodiments, a portion of the drive shaft 22 is located within the space defined by the annular support portion 121. The output shaft 320 has an installation space 321, which is fluidly isolated from the drive chamber 301. A portion of the drive shaft 22 is located within the installation space 321, and the outer surface of the drive shaft 22 is limited to the inner surface of the output shaft 320. In this document, the fluid isolation between the installation space 321 and the drive chamber 301 means that fluid cannot flow between the installation space 321 and the drive chamber 301. This arrangement prevents fluid in the valve chamber 101 from entering the installation space 321 and then entering the drive chamber 301.

[0040] Furthermore, in this embodiment of the present invention, a gap channel 13 is provided between the drive shaft 22 and the inner wall surface of the cover 12. The gap channel 13 communicates with the valve chamber 101 and is fluid-isolated from the drive chamber 301. By providing a gap channel 13 between the drive shaft 22 and the inner wall surface of the cover 12, and the gap channel 13 penetrating the cover 12, fluid in the valve chamber 101 can enter the gap channel 13. By providing a seal 40 abutting between the annular protrusion 312 and the output gear 32 along the radial direction of the output gear 32, and one side of the seal 40 abutting against the annular support 121 along the axial direction of the seal 40, and the other side of the seal 40 abutting against the bottom plate 311, the outflow of fluid in the valve chamber 101 through the gap channel 13 to the outside of the thermal management device 1 can be reduced or prevented. With the above-mentioned arrangement, compared to setting a seal between the cover and the drive shaft to prevent fluid leakage, the present invention can omit the seal between the cover 12 and the drive shaft 22, which is beneficial to reduce the frictional resistance experienced by the valve core assembly 20 during rotation.

[0041] To improve the sealing performance of the seal 40, in some embodiments, the seal 40 includes an elastic portion 41, which includes a main body portion 410 and at least two sealing lips 411. Along the radial direction of the seal 40, the sealing lips 411 are closer to the centerline of the seal 40 than the main body portion 410. Along the axial direction of the seal 40, at least two sealing lips 411 are arranged side by side. The sealing lips 411 are interference-fitted with the outer surface of the output shaft 320. By providing sealing lips 411, it is easier to increase the elastic deformation of the seal 40, which is beneficial to improving the sealing performance of the seal 40.

[0042] Furthermore, along the axial direction of the seal 40, at least one axial end of the seal 40 has a groove 412. The groove 412 extends from the axial end face of the seal 40 into the interior of the seal 40. One end face of the seal 40 abuts against the annular support portion 121, and the other end face of the seal 40 abuts against the base plate portion 311. By providing a groove 412 at at least one axial end of the seal 40, the contact area between the seal 40 and the base plate portion 311 and the annular support portion 121 is reduced, which facilitates increasing the deformation of the seal 40 and improves the sealing performance of the seal 40.

[0043] In specific implementation, in order to improve the structural strength of the seal 40, the seal 40 may optionally include a support frame, which can be located as an insert in the elastic part 41 to improve the clamping force between the seal 40 and the output shaft 320, the first drive housing 31 and the annular support part 121, thereby improving the sealing performance of the seal 40.

[0044] like Figure 9 and Figure 10 As shown, to limit the position of the valve drive assembly 30, in some embodiments, the cover 12 further includes a limiting part 120, and the first drive housing 31 further includes a mating part 314. One of the limiting part 120 and the mating part 314 is embedded inside the other, and the limiting part 120 and the mating part 314 are limited in position. The limiting part 120 is eccentrically positioned relative to the centerline of the valve core assembly 20, and the limiting surface of the limiting part 120 is a non-cylindrical surface, and / or the mating surface of the mating part 314 is a non-cylindrical surface. This configuration facilitates the limitation of the circumferential position of the valve drive assembly 30 relative to the cover 12.

[0045] Optionally, the mating part 314 can be disposed adjacent to the output shaft 320, and the projection of the mating part 314 on the first drive housing 31 can at least partially overlap with the projection of the output gear 32 on the first drive housing 31. Alternatively, the valve drive assembly 30 may also include a reduction gear assembly, and the projection of the mating part 314 on the first drive housing 31 can at least partially overlap with the projection of the reduction gear assembly on the first drive housing 31. When the thermal management device 1 includes at least two valve core assemblies 20 and corresponding at least two valve drive assemblies 30, the above arrangement facilitates a reduction in the space occupied by the valve drive assembly 30.

[0046] In specific implementation, the limiting part 120 has an elongated hole structure or a round hole structure. The limiting part 120 protrudes from the plate body 123, and the height of the limiting part 120 protruding from the plate body 123 is less than the height of the annular support part 121 protruding from the plate body 123, so as to prevent the limiting part 120 from affecting the sealing member 40 by squeezing the annular support part 121.

[0047] Please refer to further information. Figures 4 to 11In some embodiments, the annular protrusion 312 is sleeved on the outer periphery of a portion of the annular support 121. To connect the valve actuation assembly 30 and the cover 12, the thermal management device 1 further includes a threaded sleeve 50. The outer surface of one of the annular protrusion 312 and the annular support 121 includes a flange structure 3121, and the outer surface of the other of the annular protrusion 312 and the annular support 121 has a first thread structure 125. The threaded sleeve 50 includes a snap-fit ​​portion 54 and a second thread structure 51, the snap-fit ​​portion 54 engaging with the flange structure 3121. Further, as... Figure 7 and Figure 8 As shown, the threaded sleeve 50 has a limiting groove 412 extending from the inner surface of the threaded sleeve 50 into the interior of the threaded sleeve 50. At least a portion of the flange structure 3121 is located within the limiting groove 412. The first threaded structure 125 and the second threaded structure 51 are connected by threads. This arrangement facilitates the threaded connection between the valve drive assembly 30 and the cover 12, and ensures that the cover 12 abuts against the seal 40.

[0048] In specific implementation, at least two snap-fit ​​portions 54 are provided, and these at least two snap-fit ​​portions 54 are evenly distributed along the outer periphery of the threaded sleeve 50. To facilitate assembly of the threaded sleeve 50, the threaded sleeve 50 has protrusions 52, which are spaced apart along the outer periphery of the threaded sleeve 50. This arrangement facilitates tightening the threaded sleeve 50. In this embodiment, the annular protrusion 312 includes a flange structure 3121, which is an annular structure, and the annular support portion 121 has an external thread structure.

[0049] In this embodiment of the utility model, the valve drive assembly 30 and the cover 12 can be connected by a limiting part 120 and a threaded sleeve 50, which simplifies the structure of the thermal management device 1.

[0050] like Figure 11 As shown, to limit the output gear 32, the first drive housing 31 may further include a limiting block 316. The limiting block 316 protrudes from the base plate 311 and is located within the drive cavity 301. Optionally, the limiting block 316 may be an annular structure, or there may be at least two limiting blocks 316 arranged in an array along the circumference of the output gear 32. The space defined by the limiting block 316 is clearance-fitted with the output shaft 320 of the output gear 32.

[0051] Further as Figures 12 to 18 This shows some other thermal management devices 1. Figures 12 to 18 The thermal management device 1 shown is Figures 1 to 11 The thermal management devices shown have similar structures, and optionally, Figures 12 to 18The cover 12 includes an annular support portion 121 and a limiting portion 120. The valve drive assembly 30 may include a mating portion 314. The limiting portion 120 is limited and mated with the limiting portion 120, and the annular support portion 121 abuts against the axial end of the seal 40. Figures 12 to 18 and Figures 1 to 11 The difference between the thermal management devices shown is at least in the way the valve drive assembly 30 is connected to the cover 12.

[0052] Specifically, Figure 12 The thermal management device 1 shown also includes a retaining ring 61, a portion of which is inserted into the cover 12 and the first drive housing 31, and the retaining ring 61 abuts against the cover 12 and the first drive housing 31. By providing the retaining ring 61, quick disassembly between the valve drive assembly 30 and the cover 12 is facilitated, making maintenance of the thermal management device 1 easier.

[0053] And / or, such as Figures 13 to 18 As shown, the cover 12 also includes at least one support post 127, which is spaced apart from the limiting part 120 along the circumferential direction of the drive shaft 22. The valve drive assembly 30 also includes a second drive housing 34, which is sealed to the first drive housing 31 to define the drive cavity 301. For example, the second drive housing 34 is welded to the first drive housing 31, bonded to it, or clamped to it by a sealing ring and fasteners. The first drive housing 31 and / or the second drive housing 34 include mounting parts 315 in the same number as the support posts 127, such as... Figure 16 As shown, the support column 127 is riveted to the mounting part 315, or as... Figure 17 and Figure 18 As shown, the support column 127 is connected to the mounting part 315 by fasteners 64. And / or, the cover 12 can also be welded to the first drive housing 31.

[0054] The connection method between the valve drive assembly 30 and the cover 12 can be configured according to user needs; for example, it can be selected... Figures 1 to 18 The valve actuation assembly 30 and the cover 12 can be connected in any of the shown methods or any combination of at least two to connect the valve actuation assembly and the cover 12. The valve actuation assembly 30 and the cover 12 can be connected by at least one fastener such as a screw, specifically, the number of screws can be two, three, four or other numbers.

[0055] Figures 12 to 18In the middle, the limiting part 120 has an elongated hole structure or a round hole structure. The limiting part 120 protrudes from the plate body 123, and the height of the limiting part 120 protruding from the plate body 123 can be greater than or equal to the height of the annular support part 121 protruding from the plate body 123. Specifically, the height of the limiting part 120 protruding from the plate body 123 can be less than the sum of the thickness of the sealing member 40 and the height of the annular support part 121 protruding from the plate body 123. Through the above arrangement, the limiting part 120 can perform a better limiting function while preventing the limiting part 120 from interfering with the annular support part 121 pressing the sealing member 40.

[0056] Please refer to further information. Figure 9 In some embodiments, the limiting part 120 has a receiving cavity 122. The limiting part 120 includes a housing part 128 and a rib part 129. The housing part 128 protrudes from the plate part in a direction away from the valve cavity 101. The rib part 129 is connected to the plate part, and the height of the rib part 129 is less than the height of the housing part 128. Alternatively, the rib part 129 is connected to the side wall of the housing part 128. The mating part 314 has a cavity and is embedded in the receiving cavity 122. The mating part 314 and the limiting part 120 are in clearance fit. Through the above configuration, the structural strength of the limiting part 120 is increased.

[0057] To improve the structural strength of the cover 12, the plate part 123 may also include radial ribs and circumferential ribs, with the radial ribs intersecting the circumferential ribs.

[0058] like Figures 1 to 18 As shown, in some embodiments, the thermal management device 1 has at least two valve drive assemblies 30 and at least two valve core assemblies 20. The first flow channel plate 11 has at least two valve chambers 101. At least a portion of the valve core assembly 20 is located within the corresponding valve chamber 101. The valve drive assembly 30 is driven to the corresponding valve core assembly 20 to facilitate power transmission between the valve drive assembly 30 and the valve core assembly 20. The thermal management device 1 also includes a control assembly 70, which includes a control board 72. The control assembly 70 has a control chamber 71, and the control board 72 is located within the control chamber 71. The control board 72 is capable of controlling at least two valve drive assemblies 30. This configuration facilitates improved domain control integration of the thermal management device 1.

[0059] The valve drive assembly 30 includes a first electrical connection terminal 35 and a motor 33, and the control assembly 70 includes a second electrical connection terminal 73. One of the first electrical connection terminal 35 and the second electrical connection terminal 73 is embedded in the other, and the motors 33 of at least two valve drive assemblies 30 are electrically connected to the same control board 72 through corresponding first electrical connection terminals 35 and second electrical connection terminals 73. The flow channel plate assembly 100 defines at least a portion of the wall of the control cavity 71 or the flow channel plate assembly 100 is connected to the control housing 74 defining the control cavity 71.

[0060] The first electrical connection terminal 35 includes a first terminal housing 351, and the second electrical connection terminal 73 includes a second terminal housing 731. The first terminal housing 351 and the second terminal housing 731 are snapped together by a snap-fit ​​structure, or as follows: Figure 17 and Figure 18 As shown, the housing defining the control cavity 71 and the valve drive assembly 30 are fastened together by fasteners 64 near the first electrical connection terminal 35, which facilitates increased connection strength between the first terminal housing 351 and the second terminal housing 731. Figure 17 and Figure 18 In the embodiment shown, the limiting part 120 of the cover 12 can be omitted, and correspondingly, the fitting part 314 of the valve drive assembly 30 can be omitted.

[0061] To further improve the integration of the thermal management device 1, in some embodiments, the first flow channel plate 11 also has at least one pump chamber 102, and the mounting ports of the valve chambers 101 and the pump chambers 102 are located on the same side of the first flow channel plate 11. This arrangement facilitates the installation of the pump assembly and the valve core assembly on the same side of the first flow channel plate, simplifying the manufacturing process of the thermal management device 1. In this embodiment, the first flow channel plate 11 may have at least three valve chambers 101 and at least three pump chambers 102, with the mounting ports of all valve chambers 101 and all pump chambers 102 located on the side of the first flow channel plate 11 facing the valve drive assembly 30. In other embodiments, the first flow channel plate 11 may also have mounting chambers for one-way valves, sensor mounting chambers, etc.

[0062] On the other hand, such as Figure 19As shown, this utility model embodiment also provides a control valve 200, which includes a valve body assembly 80, a valve core assembly 20, a valve drive assembly 30, and a seal 40. The valve body assembly 80 includes a main valve body 81 and a cover 12, and has a valve cavity 101. Both the main valve body 81 and the cover 12 define a portion of the wall of the valve cavity 101. The valve core assembly 20 includes a drive shaft 22, and the cover 12 includes an annular support portion 121. The space defined by the annular support portion 121 communicates with the valve cavity 101, and a portion of the drive shaft 22 is sleeved on the inner surface of the annular support portion 121. The valve drive assembly 30 includes a first drive housing 31 and an output gear 32. The first drive housing 31 includes a base plate 311 and an annular protrusion 312 protruding from the base plate 311. A portion of the output gear 32 is sleeved on the inner surface of the annular protrusion 312. The drive shaft 22 is limitedly connected to the output gear 32. Along the radial direction of the output gear 32, a seal 40 abuts between the annular protrusion 312 and the output gear 32. Along the axial direction of the seal 40, one side of the seal 40 abuts against the annular support 121, and the other side of the seal 40 abuts against the base plate 311. In this embodiment of the present invention, the main valve body 81 may have a flow channel tube, which is sealed to the flow channel plate assembly 100 in the thermal management device. Alternatively, the ports of the main valve body 81 may be integrated into the same plane. The main valve body 81 includes a mounting plate portion, and all ports are located on the mounting plate portion. The main valve body 81 is sealed to the flow channel plate assembly 100 through the mounting plate portion.

[0063] With the above configuration, the first drive housing 31 of the valve drive assembly 30 includes an annular protrusion 312, and a portion of the output gear 32 is sleeved on the inner surface of the annular protrusion 312. Along the radial direction of the output gear 32, the seal 40 abuts against the annular protrusion 312 and the output gear 32, thereby forming a sealing structure between the seal 40 and the inner surface of the annular protrusion 312 and the outer surface of the output gear 32. Furthermore, in this application's technical solution, the cover 12 includes an annular support 121, and a portion of the drive shaft 22 of the valve core assembly 20 is sleeved on the inner surface of the annular support 121. Along the axial direction of the seal 40, one side of the seal 40 abuts against a portion of the annular support 121. The other side of the seal 40 abuts against the base plate 311, so that the seal 40 can form a sealing structure with the base plate 311 and the annular support 121. This helps to reduce or prevent water vapor or fluid from entering the valve drive assembly 30, and also helps to reduce or prevent fluid leakage from the valve cavity 101 to the outside of the control valve 200. Compared with setting sealing gaskets in the valve drive assembly and the valve cavity respectively to achieve sealing of the valve drive assembly and reduce fluid leakage from the valve cavity, the technical solution of this application forms a sealing structure on both the radial surface and the axial end face of the seal 40, which helps to reduce the number of seals in the control valve 200 and simplifies the structure of the control valve 200.

[0064] It should be noted that the above-described embodiments only illustrate several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be pointed out that those skilled in the art can make several modifications without departing from the concept of this utility model, and these modifications all fall within the protection scope of this utility model.

Claims

1. A thermal management device (1) characterized in that, The thermal management device (1) includes a flow channel plate assembly (100), a valve core assembly (20), a valve actuation assembly (30), and a seal (40). The flow channel plate assembly (100) includes a first flow channel plate (11) and a cover (12). The flow channel plate assembly (100) has a valve cavity (101). The first flow channel plate (11) and the cover (12) both define a portion of the wall of the valve cavity (101). The valve core assembly (20) includes a drive shaft (22). The cover (12) includes an annular support portion (121). The space defined by the annular support portion (121) communicates with the valve cavity (101). A portion of the drive shaft (22) is sleeved on the inner surface side of the annular support portion (121). The valve actuation assembly (40) 30) includes a first drive housing (31) and an output gear (32). The first drive housing (31) includes a base plate (311) and an annular protrusion (312) protruding from the base plate (311). A portion of the output gear (32) is sleeved on the inner surface of the annular protrusion (312). The drive shaft (22) is limitedly connected to the output gear (32). Along the radial direction of the output gear (32), the seal (40) abuts between the annular protrusion (312) and the output gear (32). Along the axial direction of the seal (40), one side of the seal (40) abuts against the annular support (121), and the other side of the seal (40) abuts against the base plate (311).

2. The thermal management device (1) according to claim 1, characterized in that The valve actuation assembly (30) has an actuation cavity (301), a first actuation housing (31) defining a portion of the wall of the actuation cavity (301), the first actuation housing (31) having an opening (313), the output gear (32) including an output shaft (320), a portion of the output shaft (320) being located within the opening (313), and another portion of the output shaft (320) being located outside the actuation cavity (301), and the seal (40) abutting between the annular protrusion (312) and the output shaft (320) along the radial direction of the output shaft (320).

3. The thermal management device (1) according to claim 2, characterized in that A portion of the drive shaft (22) is located within the space defined by the annular support (121). There is a gap channel (13) between the drive shaft (22) and the inner wall of the cover (12). The gap channel (13) communicates with the valve chamber (101) and is fluidly isolated from the drive chamber (301). The output shaft (320) has an installation space (321) which is fluidly isolated from the drive cavity (301). A portion of the drive shaft (22) is located in the installation space (321), and the outer surface of the drive shaft (22) is limited to the inner surface of the output shaft (320).

4. The thermal management device (1) according to claim 1, characterized in that The output gear (32) includes an output shaft (320), and the seal (40) includes an elastic portion (41). The elastic portion (41) includes a main body (410) and at least two sealing lips (411). Along the radial direction of the seal (40), the sealing lips (411) are closer to the center line of the seal (40) than the main body (410). Along the axial direction of the seal (40), at least two sealing lips (411) are arranged side by side. The sealing lips (411) are interference-fitted with the outer surface of the output shaft (320). Along the axial direction of the seal (40), at least one axial end of the seal (40) has a groove (412) extending from the axial end face of the seal (40) into the interior of the seal (40). One end face of the seal (40) abuts against the annular support portion (121), and the other end face of the seal (40) abuts against the base plate portion (311).

5. The thermal management device (1) according to any one of claims 1 to 4, characterized in that The cover (12) further includes a limiting part (120), and the first drive shell (31) further includes a mating part (314). One of the limiting part (120) and the mating part (314) is embedded inside the other, and the limiting part (120) and the mating part (314) are limited. The limiting part (120) is eccentrically positioned relative to the center line of the valve core assembly (20). The limiting surface of the limiting part (120) is a non-cylindrical surface, and / or the mating surface of the mating part (314) is a non-cylindrical surface. The cover (12) also includes a plate portion (123), the limiting portion (120) and the annular support portion (121) both protrude from the plate portion (123) toward the valve drive assembly (30), and the height of the limiting portion (120) protruding from the plate portion (123) is less than the height of the annular support portion (121) protruding from the plate portion (123).

6. The thermal management device (1) according to claim 5, characterized in that The annular protrusion (312) is sleeved on the outer periphery of part of the annular support (121). The thermal management device (1) also includes a threaded sleeve (50). The outer surface of one of the annular protrusion (312) and the annular support (121) includes a flange structure (3121). The outer surface of the other of the annular protrusion (312) and the annular support (121) has a first thread structure (125). The threaded sleeve (50) includes a snap-fit ​​part (54) and a second thread structure (51). The snap-fit ​​part (54) engages with the flange structure (3121). The first thread structure (125) and the second thread structure (51) are connected by threads.

7. The thermal management device (1) according to claim 5, characterized in that The thermal management device (1) further includes a retaining ring (61), a portion of which is inserted into the cover (12) and the first drive housing (31), and the retaining ring (61) abuts against the cover (12) and the first drive housing (31); And / or, the cover (12) further includes at least one support post (127), the support post (127) and the limiting part (120) being spaced apart along the circumferential direction of the drive shaft (22), the valve drive assembly (30) further includes a second drive housing (34), the valve drive assembly (30) having a drive cavity (301), the second drive housing (34) being sealed to the first drive housing (31) to define the drive cavity (301), the first drive housing (31) and / or the second drive housing (34) including the same number of mounting parts (315) as the support post (127), the support post (127) being riveted to the mounting part (315), or the support post (127) being connected to the mounting part (315) by fasteners (64); And / or, the cover (12) and the first drive housing (31) are welded together.

8. The thermal management device (1) according to claim 5, characterized in that The limiting part (120) has a receiving cavity (122). The limiting part (120) includes a shell part (128) and a rib part (129). The shell part (128) protrudes from the plate part in a direction away from the valve cavity (101). The rib part (129) is connected to the plate part and the height of the rib part (129) is less than the height of the shell part (128). Alternatively, the rib part (129) is connected to the side wall of the shell part (128). The mating part (314) has a cavity, the mating part (314) is embedded in the receiving cavity (122), and the mating part (314) is in clearance fit with the limiting part (120).

9. The thermal management device (1) according to claim 5, characterized in that The thermal management device (1) has at least two valve drive assemblies (30) and at least two valve core assemblies (20), the first flow channel plate (11) has at least two valve chambers (101), at least a portion of the valve core assembly (20) is located in the corresponding valve chamber (101), the valve drive assembly (30) is driven to the corresponding valve core assembly (20), the thermal management device (1) further includes a control assembly (70), the control assembly (70) includes a control plate (72), the control assembly (70) has a control chamber (71), and the control plate (72) is located in the control chamber (71); The valve drive assembly (30) includes a first electrical connection terminal (35) and a motor (33), the control assembly (70) includes a second electrical connection terminal (73), one of the first electrical connection terminal (35) and the second electrical connection terminal (73) is embedded in the other, and at least two motors (33) of the valve drive assembly (30) are electrically connected to the control board (72) through corresponding first electrical connection terminals (35) and second electrical connection terminals (73), the flow channel plate assembly (100) defines at least a portion of the wall of the control cavity (71) or the flow channel plate assembly (100) is connected to the housing defining the control cavity (71); The first electrical connection terminal (35) includes a first terminal housing (351), and the second electrical connection terminal (73) includes a second terminal housing (731). The first terminal housing (351) and the second terminal housing (731) are snapped together by a snap-fit ​​structure, or the housing defining the control cavity (71) and the valve drive assembly (30) are fastened together by fasteners (64) at a position adjacent to the first electrical connection terminal (35). The first flow channel plate (11) also has at least one pump chamber (102), and the mounting port of the valve chamber (101) and the mounting port of the pump chamber (102) are both located on the same side of the first flow channel plate (11).

10. A control valve (200) characterized by, The control valve (200) includes a valve body assembly (80), a valve core assembly (20), a valve drive assembly (30), and a seal (40). The valve body assembly (80) includes a main valve body (81) and a cover (12). The valve body assembly (80) has a valve cavity (101). The main valve body (81) and the cover (12) each define a portion of the wall of the valve cavity (101). The valve core assembly (20) includes a drive shaft (22). The cover (12) includes an annular support portion (121). The space defined by the annular support portion (121) communicates with the valve cavity (101). A portion of the drive shaft (22) is sleeved on the inner surface side of the annular support portion (121). The valve drive assembly (30) includes... A first drive housing (31) and an output gear (32) are provided. The first drive housing (31) includes a base plate (311) and an annular protrusion (312) protruding from the base plate (311). A portion of the output gear (32) is sleeved on the inner surface of the annular protrusion (312). The drive shaft (22) is connected to the output gear (32) in a limiting manner. Along the radial direction of the output gear (32), the seal (40) abuts between the annular protrusion (312) and the output gear (32). Along the axial direction of the seal (40), one side of the seal (40) abuts against the annular support (121), and the other side of the seal (40) abuts against the base plate (311).

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