Valve devices and actuators

Abstract

This application discloses an actuator having a receiving cavity. The actuator includes a motor assembly, a first transmission mechanism, and a second transmission mechanism. The motor assembly is located in the receiving cavity and includes at least two drive units and a motor body. The at least two drive units protrude from the axial end of the same motor body and are rotatable relative to the same motor body. The first transmission mechanism is drively connected to one of the drive units, and the second transmission mechanism is drively connected to the other drive unit. By driving two sets of transmission mechanisms with a single motor, the energy conversion and transmission process is more direct and efficient, thereby effectively improving energy utilization efficiency and reducing energy consumption.

Description

Technical Field

[0001] This utility model relates to the field of fluid control technology, specifically to a valve device and actuator for vehicles or energy storage. Background Technology

[0002] In fluid control valves, to achieve flow path control, taking the integration of two valve cores in a single valve body as an example, the actuator needs to be equipped with two motors, each motor driving one valve core independently. When multiple motors work together, there may be problems with poor energy utilization efficiency. Utility Model Content

[0003] The purpose of this application is to provide a valve device and actuator to improve energy utilization efficiency.

[0004] To achieve the above objectives, this application adopts the following technical solution: an actuator having a receiving cavity, comprising a motor assembly, a first transmission mechanism, and a second transmission mechanism. The motor assembly is located within the receiving cavity, and includes a motor body and at least two driving parts. The at least two driving parts protrude from the axial end of the same motor body and are rotatable relative to the same motor body. The first transmission mechanism is drively connected to one of the driving parts, and the second transmission mechanism is drively connected to the other driving part. The actuator provided in this application, by driving two sets of transmission mechanisms with the same motor assembly, makes the energy conversion and transmission process more direct and efficient, thereby effectively improving energy utilization efficiency and reducing energy consumption.

[0005] This application also provides an actuator having a receiving cavity. The actuator includes a motor assembly, a first transmission mechanism, and a second transmission mechanism. The motor assembly is located in the receiving cavity and includes a motor body and a drive unit. The drive unit protrudes from the axial end of the motor body and is rotatable relative to the motor body. The first transmission mechanism and the second transmission mechanism are drively connected to the same drive unit. The actuator provided in this application drives two sets of transmission mechanisms through the same motor assembly, making the energy conversion and transmission process more direct and efficient, thereby effectively improving energy utilization efficiency and reducing energy consumption.

[0006] This application also provides a valve device, including a first valve core, a second valve core, and the aforementioned actuator, wherein the actuator drives the first valve core and the second valve core to rotate respectively. The valve device provided in this application uses a single motor assembly to drive two sets of transmission mechanisms to rotate the two valve cores, making the energy conversion and transmission process more direct and efficient, thereby effectively improving energy utilization efficiency and reducing energy consumption. Attached Figure Description

[0007] Figure 1This is an exploded view of the structure of an actuator provided in an embodiment of this application;

[0008] Figure 2 yes Figure 1 Assembly diagram of the central motor and the second housing;

[0009] Figure 3 yes Figure 1 A schematic diagram of the motor structure in the diagram;

[0010] Figure 4 yes Figure 1 A schematic diagram of the structure of the second shell in the middle;

[0011] Figure 5 yes Figure 1 A top view of the actuator (excluding the first housing);

[0012] Figure 6 yes Figure 1 A schematic diagram of a local structure in the image;

[0013] Figure 7 yes Figure 1 A structural schematic diagram of the actuator from another perspective;

[0014] Figure 8 yes Figure 7 A magnified view of a portion of region D;

[0015] Figure 9 This is an exploded view of the structure of another actuator provided in an embodiment of this application;

[0016] Figure 10 yes Figure 9 A top view of the actuator (excluding the first housing);

[0017] Figure 11 yes Figure 9 Assembly diagram of the central motor and the second housing;

[0018] Figure 12 yes Figure 9 A schematic diagram of the structure of the second shell in the middle;

[0019] Figure 13 yes Figure 9 An assembly diagram of the actuator (excluding the first housing);

[0020] Figure 14 yes Figure 9 A schematic diagram of a local structure in the image;

[0021] Figure 15 This is a schematic diagram of the structure of another actuator provided in the embodiments of this application;

[0022] Figure 16This is a schematic diagram of a valve device provided in an embodiment of this application.

[0023] The annotations in the figure are explained as follows:

[0024] 1, 1', First housing; 10, 10', Receiving cavity; 100, Motor receiving cavity; 2, 2', Second housing; 201, 201', First hole; 202, 202', Second hole; 21, Limiting protrusion; 210, Mounting hole; 2a, Coil; 3, 3', Motor assembly; 30, 30', Drive unit; 301, 301', First drive unit; 302, 302', Second drive unit; 31, 31', Motor body; 32, 32', Axial protrusion; 321, 32 1', First axial protrusion; 322, 322', Second axial protrusion; 33, 33', Motor support; 331, 331', First support; 332, 332', Second support; 34, 34', Groove; 341', First groove; 342', Second groove; 35, 35', Rotating shaft; 351, 351', First rotating shaft; 352, 352', Second rotating shaft; 36, 36', Worm gear; 361, 361', First worm gear; 362, 362', Second worm; 37, 37', axial end; 371, 371', first axial end; 372, 372', second axial end; 4, 4', first transmission mechanism; 41, 41', first gear set; 411, 411', first worm wheel; 412, 412', first sub-gear; 4a, elastic element; 4b, magnetic element; 42, 42', second gear set; 421, 421', second sub-gear; 422, 422', third sub-gear; 5, 5', second transmission mechanism; 53, 53', Third gear set; 531, 531', Second worm gear; 532, 532', Fourth sub-gear; 54, 54', Fourth gear set; 541, 541', Fifth sub-gear; 542, 542', Sixth sub-gear; 55', Fifth gear set; 551', Seventh sub-gear; 552', Eighth sub-gear; 6, 6', First output gear; 7, 7', Second output gear; 8, 8', Circuit board; C1, First valve core; C2, Second valve core; A, Actuator. Detailed Implementation

[0025] As can be seen from the background technology, current actuators may have problems with poor energy utilization efficiency.

[0026] To address the aforementioned problems, this application provides an actuator. To make the objectives, technical solutions, and advantages of this utility model clearer, the embodiments are further described below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are merely illustrative of this utility model and are not intended to limit its scope.

[0027] The actuators provided in this application embodiment can be applied to automotive thermal management systems, water valve actuators, and refrigerant valve actuators.

[0028] Please refer to Figures 1-6 This application provides an actuator having a receiving cavity 10. The actuator includes a motor assembly 3, a first transmission mechanism 4, and a second transmission mechanism 5. The motor assembly 3 is located in the receiving cavity 10. The motor assembly 3 includes at least two drive parts 30 and a motor body 31. The at least two drive parts 30 protrude from the axial end 37 of the same motor body 31. The at least two drive parts 30 are rotatable relative to the same motor body 31. The first transmission mechanism 4 is drivenly connected to one of the drive parts 30, and the second transmission mechanism 5 is drivenly connected to the other drive part 30.

[0029] As is readily understood, the motor includes a rotor assembly, and the drive unit 30 refers to the component capable of transmitting power from the rotor assembly to the transmission mechanism. The drive unit can rotate together with the rotor assembly; for example, the rotor assembly and the drive unit 30 are fixedly connected or limit-connected. Part of the drive unit 30 protrudes from the axial end 37 of the motor body 31, and part of the drive unit 30 may be located inside the motor body 31.

[0030] In one specific embodiment, the drive unit 30 may include a rotating shaft 35 and a worm gear 36, with the worm gear 36 fixed to the rotating shaft 35 and rotating together with the rotating shaft 35. Of course, in other embodiments, the drive unit 30 may be an integral structure. For example, the drive unit 30 may be a rotating shaft 35, and at least part of the rotating shaft 35 may include a toothed portion 36L with worm gear function. The drive unit 30 may also be a rotating shaft 35 with worm gear 36 protruding from one side of the axial end of the motor body 31.

[0031] In a direction perpendicular to the axis of the rotating shaft 35, the first transmission mechanism 4 and the second transmission mechanism 5 can be respectively disposed on both sides of a single drive unit 30. The first transmission mechanism 4 and the second transmission mechanism 5 are respectively connected to the same drive unit 30. For example, when the drive unit 30 is a rotating shaft 35 with a worm gear 36 protruding from one end of the motor body 31, the first transmission mechanism 4 and the second transmission mechanism 5 are respectively disposed on both sides of the worm gear 36 in a direction perpendicular to the axis of the rotating shaft 35. When the drive unit 30 is a rotating shaft 35 with a toothed portion 36L that has a worm function protruding from one side of the axial end of the motor body 31, the first transmission mechanism 4 and the second transmission mechanism 5 are respectively disposed on both sides of the toothed portion 36L in a direction perpendicular to the axis of the rotating shaft 35. It should be noted that, in a direction perpendicular to the axis of the rotating shaft 35, the first transmission mechanism 4 and the second transmission mechanism 5 can be respectively arranged on both sides of a single drive unit 30, that is, the drive unit is located between the first transmission mechanism 4 and the second transmission mechanism 5. The direction perpendicular to the axis of the rotating shaft 35 is to indicate that the positions of the first transmission mechanism 4 and the second transmission mechanism 5 are distributed on both sides of the axis, and does not limit the line connecting the first transmission mechanism 4 and the second transmission mechanism 5 to be perpendicular to the axis.

[0032] When there are at least two drive units, the first drive unit 301 and the second drive unit 302 may protrude from the first axial end 371 and the first axial end 372 of the motor body 31, respectively. The structures of the first drive unit 301 and the second drive unit 302 may be the same or different. For example, in one specific embodiment, one of the first drive unit 301 and the second drive unit 302 is a rotating shaft 35 with a toothed portion 36L having a worm function, and the other of the first drive unit 301 and the second drive unit 302 is a rotating shaft 35 with a worm 36; in another embodiment, the first drive unit 301 is a first rotating shaft 351 with a first worm 361, and the second drive unit 302 is a second rotating shaft 352 with a second worm 362. The structures of the first worm 361 and the second worm 362 may be the same or different.

[0033] The actuator provided in this application embodiment drives two sets of transmission mechanisms with a single motor assembly, reducing the number of motor assemblies and related control equipment. This not only saves on motor procurement costs but also reduces the cost of control equipment, thereby reducing the overall construction cost of the control system. Reducing the number of motors also reduces the number of motors and connecting components, resulting in a more compact system structure and a more rational layout between components. This simplifies the system structure, saves installation space, and facilitates subsequent installation and maintenance, reducing maintenance costs and complexity. When a single motor assembly is running, the energy conversion and transmission process within the actuator is more direct and efficient, avoiding the energy loss and efficiency reduction problems that may occur when multiple motors work together, thus effectively improving energy utilization efficiency and reducing energy consumption. Furthermore, a single motor can precisely coordinate the movement of the two transmission mechanisms, achieving high-precision coordinated movement between the two gear sets even under complex working conditions, significantly improving the overall performance of the system and ensuring its stability and reliability.

[0034] Specifically, for ease of processing and assembly, the drive unit 30 may include a shaft 35 and a worm gear 36. At least a portion of the shaft 35 protrudes from the axial end 37 of the motor body 31, and the worm gear 36 is fixed to the shaft 35. The first transmission mechanism 4 and the second transmission mechanism 5 are respectively connected to the corresponding worm gear 36 for transmission. In this way, the threading process on the shaft can be omitted, and the radial dimension of the shaft can be reduced, saving costs.

[0035] To improve transmission efficiency, in one specific embodiment, the first drive unit 301 includes a first rotating shaft 351, and the second drive unit 302 includes a second rotating shaft 352. The first rotating shaft 351 and the second rotating shaft 352 are either an integral structure or separately configured. The motor assembly 3 also includes a rotor assembly located inside the motor body. Both the first rotating shaft 351 and the second rotating shaft 352 are fixedly connected to the same rotor assembly. Here, an integral structure means that the first and second rotating shafts are integrally formed, while a separate configuration means that the first and second rotating shafts are directly fixedly connected or connected through the rotor assembly. Specifically, the motor body 31 has a first axial end 371 and a second axial end 372. At least a portion of the shaft 35 protrudes from the first axial end 371 and at least a portion of the shaft 35 protrudes from the second axial end 372. The shaft 35 protruding from the first axial end 371 is defined as the first shaft 351, and the shaft 35 protruding from the second axial end 372 is defined as the second shaft 352. The first shaft 351 and the second shaft 352 can rotate synchronously. The worm gear 36 includes a first worm gear 361 and a second worm gear 362. The first worm gear 361 is fixed to the first shaft 351, and the second worm gear 362 is fixed to the second shaft 352. The first worm gear 361 is connected to the first transmission mechanism 4, and the second worm gear 362 is connected to the second transmission mechanism 5. The two axial ends 37 of the single motor 3 simultaneously output power to drive the two transmission mechanisms. The rotation direction of the output gear is controlled by adjusting the rotation direction of the drive unit 30. Since the rotating shaft 35 protrudes from the two axial ends 37 of the motor assembly 3, the single output power of the traditional motor is transformed into bidirectional output power, which drives two sets of transmission mechanisms to transmit torque. The two sets of transmission mechanisms can share the power of the same motor assembly, enabling the actuator to drive two transmission mechanisms with a single motor assembly. This not only improves work efficiency but also reduces the space occupied by the motor assembly, ultimately saving actuator space.

[0036] It should be noted that the first rotating shaft 351 and the second rotating shaft 352 are used to illustrate that the drive part is located at the first axial end 371 and the second axial end 372 of the motor body 31, respectively, and should not be construed as a limitation on the connection relationship between the first rotating shaft 351 and the second rotating shaft 352. The first rotating shaft 351 and the second rotating shaft 352 can be integrally formed axial end regions of the same rotating shaft. Alternatively, the first rotating shaft 351 and the second rotating shaft 352 can be fixedly connected or limitedly connected axial end regions of the same rotating shaft. The radial and axial dimensions of the first rotating shaft 351 and the second rotating shaft 352 can be exactly the same, or they can be different. Alternatively, the first rotating shaft 351 and the second rotating shaft 352 can be part of different rotating shafts. The rotating shaft connected to the first rotating shaft 351 that extends into the motor housing and the rotating shaft connected to the second rotating shaft 352 that extends into the motor housing can be unconnected. The rotating shaft connected to the first rotating shaft 351 that extends into the motor housing and the rotating shaft connected to the second rotating shaft 352 that extends into the motor housing are respectively fixed to the rotor assembly and rotate together with the rotor assembly. Similarly, the first worm 361 fixed to the first rotating shaft 351 and the second worm 362 fixed to the second rotating shaft 352 can be the same or different.

[0037] The first transmission mechanism 4 includes at least one gear set and a first output gear 6, and the second transmission mechanism 5 includes at least one gear set and a second output gear 7. The first transmission mechanism 4 and the second transmission mechanism 5 can be the same, or the transmission ratios of the first transmission mechanism 4 and the second transmission mechanism 5 can be the same. As the number of gear sets in the first transmission mechanism 4 increases, the transmission torque of the first output gear 6 can be increased. Similarly, as the number of gear sets in the second transmission mechanism 5 increases, the transmission torque of the second output gear 7 can be increased.

[0038] Continue to refer to Figure 1 The actuator includes a first housing 1 and a second housing 2, which respectively define a portion of the cavity wall of the receiving cavity 10. The actuator has a first hole 201 and a second hole 202, which are respectively formed in the second housing 2. A portion of the first output gear 6 is located in the first hole 201, and a portion of the second output gear 7 is located in the second hole 202. The first output gear 6 and the second output gear 7 are connected to the first valve core and the second valve core through the first hole 201 and the second hole 202. Of course, in other embodiments, the position of the first hole and the second hole in the actuator housing is not limited; the first hole and the second hole can be formed on the first housing or on the side wall of the actuator housing.

[0039] To reduce motor vibration during operation, the first housing 1 has a motor support portion 33, which includes a groove 34. The motor 3 includes an axial protrusion 32 located within the groove 34, and the drive portion 30 protrudes from the axial protrusion 32. The axial end... Figure 3 The dashed frame in the diagram shows that the axial end 37 includes an axial protrusion 32.

[0040] The actuator also includes a circuit board 8 and at least one sensor, the circuit board 8 and the motor assembly 3 being electrically connected; the sensor is fixed to the circuit board 8 and is capable of detecting the rotation signal of at least one output gear.

[0041] The first transmission mechanism 4 includes at least one gear set and a first output gear 6, and the second transmission mechanism 5 includes at least one gear set and a second output gear 7. The first transmission mechanism 4 and the second transmission mechanism 5 are the same, which not only ensures the stability of a single motor assembly driving two transmission components, but also helps to reduce the installation difficulty of the actuator production line. Of course, in other embodiments, the first transmission mechanism 4 and the second transmission mechanism 5 can also be different. As long as the transmission ratio of the first transmission mechanism 4 and the second transmission mechanism 5 is the same, the effect of synchronous driving can also be achieved.

[0042] Specifically, see Figure 6 The first transmission mechanism 4 includes a first gear set 41 and a second gear set 42. The first gear set 41 includes a first worm gear 411 and a first sub-gear 412, which are coaxially arranged. The second gear set 42 includes a second sub-gear 421 and a third sub-gear 422, which are coaxially arranged and can be an integral structure. The first worm gear 411 is driven by the first worm 361, the first sub-gear 412 is driven by the second sub-gear 421, and the third sub-gear 422 is driven by the first output gear 6. Both the first gear set 41 and the second gear set 42 can be double gears.

[0043] See Figure 6 The second transmission mechanism 55 includes a third gear set 53 and a fourth gear set 54. The third gear set 53 includes a second worm gear 531 and a fourth sub-gear 532, which are arranged coaxially. The fourth gear set 54 includes a fifth sub-gear 541 and a sixth sub-gear 542, which are arranged coaxially. The fifth sub-gear 541 and the sixth sub-gear 542 can be an integral structure. The second worm gear 531 is driven by the second worm 362, the fourth sub-gear 532 is driven by the fifth sub-gear 541, and the sixth sub-gear 542 is driven by the second output gear 7. Both the third gear set 53 and the fourth gear set 54 can be double gears.

[0044] The first housing 1 is fixed with a first gear shaft A1, a second gear shaft A2, a third gear shaft A3, and a fourth gear shaft A4. Correspondingly, a first gear set 41 is sleeved on the first gear shaft A1, a second gear set 42 is sleeved on the second gear shaft A2, a third gear set 53 is sleeved on the third gear shaft A3, and a fourth gear set 54 is sleeved on the fourth gear shaft A4. During transmission, the first transmission mechanism 4 and the second transmission mechanism 5 are axially fixed to the gear shafts and can rotate circumferentially along the gear shafts. For ease of manufacturing, each gear shaft can be integrally formed with the first housing 1. Of course, in other embodiments, each gear shaft can also be fixed to the first housing 1 by bonding, welding, or other methods.

[0045] The actuator also includes a connector 11, which is electrically connected to the motor assembly 3. The connector 11 includes a connector housing and connection terminals disposed in the connector housing. The connector housing is integrally or sealedly connected to the actuator housing.

[0046] Specifically, the sensor can be a potentiometer, which is fixed to circuit board 8 via terminals. Circuit board 8 is fixed to the first housing 1. When the first transmission mechanism 4 and the second transmission mechanism 5 are the same, the number of sensors can be one. By detecting the rotation signal of one of the first and second output gears, the control of the two valve bodies can be achieved, thereby further saving costs. Of course, in other embodiments, the number of sensors can also be two, with each sensor detecting the transmission signal of one output gear. The output gear includes a D-shaped shaft, and the potentiometer includes a rotating element with a D-shaped hole. Part of the D-shaped shaft is located inside the D-shaped hole, and the D-shaped shaft is limited to the wall surface defining the D-shaped hole. Thus, when the D-shaped shaft of the output gear rotates, it drives the rotating element of the potentiometer to rotate together. The circuit board compares the potentiometer opening position signal with the target position signal to determine whether to control the motor to continue operating or stop. In other embodiments, the actuator can also be a Hall sensor.

[0047] The motor assembly 3 can be a DC motor. The circuit board 8 can be thermally riveted to the first housing. The circuit board 8 precisely controls the forward and reverse rotation of the DC motor according to the LIN signal emitted by the integrated circuit. When the DC motor is running, it drives the first worm 361 and the second worm 362 located on both sides of the motor body 31. Through the engagement of the first worm 361 with the first transmission mechanism 4 and the engagement of the second worm 362 with the second transmission mechanism 5, torque is output, thereby achieving the result of reducing speed and increasing torque. By connecting and controlling two valve cores simultaneously through a single motor assembly, the efficiency of the motor is improved, the coordination accuracy of the two sets of transmission mechanisms is increased, space is saved, assembly is simplified, and costs are reduced.

[0048] Of course, the actuator can also control the meshing state of the first transmission mechanism 4 and the first worm 361, or the meshing state of the second transmission mechanism 5 and the second worm 362, to change the synchronous transmission of the first transmission mechanism 4 and the second transmission mechanism 5 into a single-sided transmission of one of them.

[0049] For details, please refer to Figures 7-8 The actuator includes a first housing 1 and a second housing 2. The first housing 1 is fixed with a third gear shaft A3. The second housing 2 has a limiting protrusion 21 and a mounting hole 210. The end of the third gear shaft A3 is located in the mounting hole 210.

[0050] The second transmission mechanism 5 includes a third gear set 53, which is a double gear set. The third gear set 53 is sleeved on the first gear shaft A3. The third gear set 53 includes a second worm gear 531, which is directly connected to the second drive unit 302. The actuator also includes an elastic element 4a, which is compressed and disposed between the second worm gear 531 and the limiting protrusion 21 along the axial direction of the third gear set 53. A magnetic element 4b is disposed on the side of the second worm gear 531 facing the second housing 22, and a coil 2a is disposed on the side of the second housing 22 facing the second worm gear 531. When the coil 2a is energized, it can drive the third gear set 53 to move along the axial direction of the third gear set 53 through the magnetic element 4b, thereby disconnecting the transmission connection between the second drive unit 302 and the second transmission mechanism 5. Specifically, in one operating mode, when a single valve core needs to be driven, coil 2a is energized, and coil 2a attracts the magnetic component 4b. Along the axial direction of the third gear shaft A3, the third gear set 53 overcomes the spring pressure and moves towards the first housing 1. The second worm gear 531 disengages from the worm 36, and the transmission between the second worm gear 531 and the second transmission mechanism 5 is disconnected. In another operating mode, when the first transmission mechanism and the second transmission mechanism need to be synchronously driven, the two valve cores are synchronously driven, coil 2a is de-energized, and the third gear set 53 moves away from the first housing 1 under the action of spring pressure until the second worm gear and the worm mesh. It should be noted that the third gear set 53 includes a second worm gear 531 and a fourth sub-gear 532 arranged coaxially. During the axial movement of the second worm gear 531, the fourth sub-gear 532 always remains meshed with the next stage gear.

[0051] It should be noted that, Figure 1The positions of the first transmission mechanism 4 and the second transmission mechanism 5 are merely illustrative; in other embodiments, the positions of the first transmission mechanism 4 and the second transmission mechanism 5 can be interchanged. In other embodiments, the actuator includes a first housing 1 and a second housing 2. The first housing 1 is fixed with a first gear shaft A1, and the second housing 2 has a limiting protrusion 21 with a mounting hole 210. The end of the first gear shaft A1 is located in the mounting hole 210. The first transmission mechanism 4 includes a first gear set 41, which is a double gear set. The first gear set 41 is sleeved on the first gear shaft A1 and includes a first worm gear 411. The first worm gear 411 and the first drive unit 301 are directly connected. The actuator also includes an elastic element 4a, which is compressed and disposed between the first worm gear 411 and the limiting protrusion 21 along the axial direction of the first gear set 41. A magnetic element 4b is disposed on the side of the first worm gear 411 facing the second housing 2, and a coil 2a is disposed on the side of the second housing 2 facing the first worm gear 411. When the coil 2a is energized, it can drive the first gear set 41 to move along the axial direction of the first gear set 41 through the magnetic element 4b, so as to disconnect the transmission connection between the first drive unit 301 and the first transmission mechanism 4.

[0052] Please refer to Figures 9-14 To improve transmission efficiency, in one specific embodiment, the motor body has an axial first end 371' and an axial second end 372'. At least a portion of the drive portion 30 protrudes from the axial first end 371' and at least a portion of the drive portion 30 protrudes from the axial second end 372'. The drive portion 30 protruding from the axial first end 371' is defined as the first drive portion 301', and the drive portion 30 protruding from the axial second end 372' is defined as the second drive portion 302'. The first drive portion 301' and the second drive portion 302' rotate synchronously. The first transmission mechanism 4' is drively connected to the first drive portion 301', and the second transmission mechanism 5' is drively connected to the second drive portion 302'. The synchronous rotation of the first drive portion 301' and the second drive portion 302' means that the first drive portion 301 and the second drive portion 302' rotate together under the power of the same motor assembly 3.

[0053] It should be noted that the first driving unit and the second driving unit may be the same or different. Specifically, for ease of processing and assembly, the first driving unit may include a first rotating shaft 351' and a first worm gear 361', and the second driving unit may include a second rotating shaft 352' and a second worm gear 362'. The first rotating shaft 351' and the second rotating shaft 352' may be the same or different, and the first worm gear 361' and the second worm gear 362' may be the same or different. Of course, in another embodiment, at least one of the first driving unit 301' and the second driving unit 302' may be a rotating shaft with a toothed portion 36L', which replaces the worm gear to transmit torque and change direction. Alternatively, the first driving unit 301' may include a first rotating shaft 351' with a first toothed portion 36L1', and the second driving unit 302' may include a first rotating shaft 352' with a second toothed portion 36L2'.

[0054] The first transmission mechanism 4' includes at least one gear set and a first output gear 6', and the second transmission mechanism 5' includes at least one gear set and a second output gear 7'. The transmission ratios of the first transmission mechanism 4' and the second transmission mechanism 5' are different. Thus, the rotation angles of the first output gear 6' and the second output gear 7' controlled by a single motor assembly are asynchronous, which can increase the diversity of the control modes of the valve device.

[0055] The actuator includes a first housing 1' and a second housing 2', which respectively define a portion of the cavity wall of the receiving cavity 10'. The first housing 1' and the second housing 2' are sealed together, for example, by using laser welding for fitting and installation, which helps to ensure the tightness and stability of the connection between the two. Of course, in other embodiments, the first housing 1' and the second housing 2' can also be sealed together by means of bonding, welding, bolting, or snap-fit ​​connection. The second housing 2' has a first hole 201' and a second hole 202', with a portion of the first output gear 6' located in the first hole 201' and a portion of the second output gear 7' located in the second hole 202'.

[0056] To increase the rotational stability of the motor assembly 3, the first housing 1' has a motor support portion 33', which includes a groove 34'. The motor assembly 3' includes an axial protrusion 32' located in the groove 34', and the drive portion 30' protrudes from the axial protrusion 32'. The axial end portion... Figure 10 The dashed box in the figure shows that the axial end 37' includes an axial protrusion 32' (shown in...). Figure 11 middle).

[0057] To further increase the rotational stability of the motor assembly 3', reduce wear on the motor assembly, and lower the risk of wobbling of the rotating shaft 35', the motor support portion 33' includes a first support portion 331' and a second support portion 332'. The first support portion 331' and the second support portion 332' are arranged side by side along the axial direction of the motor assembly 3'. The groove 34' includes a first groove 341' and a second groove 342'. The first groove 341' is formed in the first support portion 331', and the second groove 342' is formed in the second support portion 332'. The axial protrusion 32' is located on the groove wall defining the first groove 341', and the end of the drive portion 30' is located on the groove wall defining the second groove 342'. Of course, in the above embodiment, a second support portion 332' and a second groove 342' can also be added to reduce wear on the first rotating shaft 351 and the second rotating shaft 352.

[0058] The actuator also includes a circuit board 8', a first sensor, and a second sensor. The circuit board 8' is electrically connected to the motor assembly 3'. The first sensor and the second sensor are respectively electrically connected to the circuit board 8'. For ease of circuit board arrangement, one of the first sensor and the second sensor is signal-connected to the first transmission mechanism 4', and the other of the first sensor and the second sensor is signal-connected to the drive unit 30'. Specifically, the first sensor can be a potentiometer, which detects the rotation signal of the first output gear; the second sensor can be a Hall sensor, which detects the rotation signal of the second shaft. Of course, in other embodiments, the types of the first sensor and the second sensor are not limited; both the first sensor and the second sensor can be potentiometers or both can be Hall sensors.

[0059] The actuator also includes a connector 11', which is electrically connected to the motor assembly 3'. The connector 11' includes a connector housing and connection terminals disposed in the connector housing. The connector housing is integrally or sealedly connected to the actuator housing.

[0060] To increase the transmission torque of the first output gear 6', the first transmission mechanism 4' includes a first gear set 41' and a second gear set 42'. The first gear set 41' includes a first worm gear 411' and a first sub-gear 412', which are arranged coaxially. The second gear set 42' includes a second sub-gear 421' and a third sub-gear 422', which are arranged coaxially. The first worm gear 411' is connected to the first worm 361', the first sub-gear 412' is connected to the second sub-gear 421', and the third sub-gear 422' is connected to the first output gear 6'. Both the first gear set 41' and the second gear set 42' can be double gears.

[0061] Similarly, in order to increase the transmission torque of the second output gear 7', the second transmission mechanism 5' includes a third gear set 53', a fourth gear set 54', and a fifth gear set 55'. Power is transmitted through the first worm gear 361' on the first rotating shaft 351' to the first gear set 41', from the first gear set 41' to the second gear set 42', and from the second gear set 42' to the first output gear 6'. At the same time, power is transmitted through the second worm gear 362' on the second rotating shaft 352' to the third gear set 53', from the third gear set 53' to the fourth gear set 54', from the fourth gear set 54' to the fifth gear set 55', and from the fifth gear set 55' to the second output gear 7'. The third gear set 53' includes a second worm gear 531' and a fourth sub-gear 532', which are coaxially arranged. The fourth gear set 54' includes a fifth sub-gear 541' and a sixth sub-gear 542', which are coaxially arranged. The second worm gear 531' and the second worm 362' are driven by each other. The fourth sub-gear 532' and the fifth sub-gear 541' are also driven by each other. The fifth gear set 55' includes a seventh sub-gear 551' and an eighth sub-gear 552', which are coaxially arranged. The sixth sub-gear 542' and the seventh sub-gear 551' are driven by each other. The eighth sub-gear 552' is driven by the second output gear 7'. The third gear set 53', the fourth gear set 54', and the fifth gear set 55' can all be double gears.

[0062] The first housing 1' is fixed with a first gear shaft A1', a second gear shaft A2', a third gear shaft A3', a fourth gear shaft A4', and a fifth gear shaft A5'. Correspondingly, a first gear set 41' is sleeved on the first gear shaft A1', a second gear set 42' is sleeved on the second gear shaft A2', a third gear set 53' is sleeved on the third gear shaft A3', a fourth gear set 54' is sleeved on the fourth gear shaft A4', and a fifth gear set 55' is sleeved on the fifth gear shaft A5'. During transmission, the first transmission mechanism 4' and the second transmission mechanism 5' are axially fixed to the gear shafts and can rotate circumferentially along the gear shafts. For ease of manufacturing, each gear shaft can be integrally formed with the first housing 1'. Of course, in other embodiments, each gear shaft can also be fixed to the first housing 1' by bonding, welding, or other methods.

[0063] On the one hand, the actuator provided in this application embodiment can achieve the result of reducing the speed and increasing the torque by adopting a multi-stage transmission system; on the other hand, by changing the transmission ratio of the first transmission mechanism and the second transmission mechanism, the torques of the first output gear and the second output gear driven by a single motor assembly can be different, which ultimately results in different rotation angles of the first valve core connected to the first output gear and the second valve core connected to the second output gear, thereby increasing the working modes of the valve device.

[0064] To solve the above problems, such as Figure 15 As shown, this application also provides an actuator having a receiving cavity 10,10'. The actuator includes a motor assembly 3,3', a first transmission mechanism 4,4', and a second transmission mechanism 5,5'. The motor assembly 3,3' is located in the receiving cavity 10,10'. The motor assembly 3,3' includes a motor body 31,31' and a drive part 30,30'. The drive part 30,30' protrudes from the axial end 37,37' of the motor body 31,31' and is rotatable relative to the motor body 31,31'. The first transmission mechanism 4,4' and the second transmission mechanism 5,5' are connected to the same drive part 30,30'.

[0065] Please refer to the previous text for an explanation of the drive unit; it will not be repeated here.

[0066] To solve the above problems, such as Figure 16 As shown, this application also provides a valve device, including a first valve core C1, a second valve core C2, and the aforementioned actuator A, wherein the actuator A drives the first valve core C1 and the second valve core C2 to rotate via a driving part.

[0067] Specifically, the first valve core C1 can be driven to the first output gear 6 / 6' of the first drive unit 301 / 301', and the second valve core C2 can be driven to the second output gear 7 / 7' of the second drive unit 302 / 302'.

[0068] The valve device provided in this application uses an actuator that drives two sets of transmission mechanisms through a single motor assembly. This results in a more direct and efficient energy conversion and transmission process, typically achieving higher operating efficiency than a combination of two motors, thereby effectively improving energy utilization efficiency and reducing energy consumption. Simultaneously connecting and controlling two valve cores through the same motor assembly increases both motor efficiency and coordination precision, while also saving space, simplifying assembly, and reducing costs. The valve device provided in this application can switch between control modes for the water valve, enabling precise control of the coolant temperature in the vehicle's thermal management system through on / off switching, reversing, mixing, or proportional distribution. This, in turn, allows for temperature control of the battery, motor, and controller, improving driving range and vehicle performance.

[0069] The above embodiments only illustrate several implementation methods of this application, and their descriptions are quite specific, but they should not be construed as limiting the scope of the utility model patent. It should be noted that for those skilled in the art, several modifications can be made without departing from the concept of this utility model, and these modifications all fall within the protection scope of this utility model.

Claims

1. An actuator, characterized by The actuator has a receiving cavity (10,10'), and the actuator includes a motor assembly (3,3'), a first transmission mechanism (4,4'), and a second transmission mechanism (5,5'). The motor assembly (3,3') is located in the receiving cavity (10,10'). The motor assembly (3,3') includes a motor body (31,31') and at least two drive units (30,30'). The at least two drive units (30,30') protrude from the axial ends (37,37') of the same motor body (31,31'). The at least two drive units (30,30') are rotatable relative to the same motor body (31,31'). The first transmission mechanism (4,4') is drively connected to one of the drive units (30,30'), and the second transmission mechanism (5,5') is drively connected to the other drive unit (30,30').

2. The actuator of claim 1, wherein The motor body (31, 31') has an axial first end (371, 371') and an axial second end (372, 372'), wherein one of the driving parts (30, 30') protrudes from the axial first end (371, 371'), and the other driving part (30, 30') protrudes from the axial second end (372, 372'). The driving part (30, 30') protruding from the axial first end (371, 371') is defined as the first driving part. The first drive unit (301, 301') and the second drive unit (302, 302') protruding from the second end (372, 372') in the axial direction are connected to the first drive unit (301, 301'). The first drive unit (301, 301') and the second drive unit (302, 302') rotate synchronously. The first transmission mechanism (4, 4') is connected to the first drive unit (301, 301') in a transmission connection. The second transmission mechanism (5, 5') is connected to the second drive unit (302, 302') in a transmission connection.

3. The actuator as described in claim 2, characterized in that, The first drive unit (301, 301') includes a first rotating shaft (351, 351'), and the second drive unit (302, 302') includes a second rotating shaft (352, 352'). The first rotating shaft (351, 351') and the second rotating shaft (352, 352') are either an integral structure or separate components. The motor assembly (3,3') further includes a rotor assembly located inside the motor body, wherein the first rotating shaft (351,351') and the second rotating shaft (352,352') are both fixedly connected to the same rotor assembly.

4. The actuator as described in claim 3, characterized in that, The first rotating shaft (351, 351') includes a toothed portion (36L, 36L') with a worm gear function, and the first transmission mechanism (4, 4') is drivenly connected to the corresponding toothed portion (36L, 36L'), or the first driving unit (301, 301') further includes a first worm gear (361, 361'), the first worm gear (361, 361') is fixed to the first rotating shaft (351, 351'), and the first worm gear (361, 361') is drivenly connected to the first transmission mechanism (4, 4'); And / or, the second rotating shaft (352, 352') includes a toothed portion (36L, 36L') with a worm gear function, and the second transmission mechanism (5, 5') is drive-connected to the corresponding toothed portion (36L, 36L'), or the second drive unit (302, 302') further includes a second worm gear (362, 362'), the second worm gear (362, 362') is fixed to the second rotating shaft (352, 352'), and the second worm gear (362, 362') is drive-connected to the second transmission mechanism (5, 5').

5. The actuator according to any one of claims 1-4, characterized in that, The first transmission mechanism (4,4') includes at least one gear set and a first output gear (6,6'), and the second transmission mechanism (5,5') includes at least one gear set and a second output gear (7,7'). The transmission ratio of the first transmission mechanism (4,4') and the transmission ratio of the second transmission mechanism (5,5') are either greater than or equal to the other. The actuator includes a first housing (1,1') and a second housing (2,2'), which are sealed together. The actuator has a first hole (201,201') and a second hole (202,202'). The first housing (1,1') and the second housing (2,2') respectively define a portion of the cavity wall of the receiving cavity (10,10'), the first hole (201,201') is at least partially located in the first housing (1,1') or the second housing (2,2'), and / or, the second hole (202,202') is at least partially located in the first housing (1,1') or the second housing (2,2'), a portion of the first output gear (6,6') is located in the first hole (201,201'), and a portion of the second output gear (7,7') is located in the second hole (202,202').

6. The actuator as described in claim 5, characterized in that, The actuator further includes a circuit board (8, 8') and at least one sensor, the circuit board (8, 8') and the motor assembly (3, 3') being electrically connected; the sensor is electrically connected to the circuit board (8, 8') and is signal-connected to at least one of the first transmission mechanism (4, 4') and the second transmission mechanism (5, 5'), the sensor including a potentiometer or a Hall sensor; Alternatively, the transmission ratio of the first transmission mechanism (4') is greater than the transmission ratio of the second transmission mechanism (5'). The actuator further includes a circuit board (8'), a first sensor, and a second sensor. The circuit board (8') and the motor assembly (3') are electrically connected. The first sensor and the second sensor are electrically connected to the circuit board (8'). One of the first sensor and the second sensor is signal-connected to the first transmission mechanism (4'). The motor body (31, 31') has an axial first end (371, 371') and an axial second end (372, 372'). The driving part protruding from the axial second end (372, 372') is the second driving part (302, 302'). The other of the first sensor and the second sensor is signal-connected to the second driving part (302'). At least one of the first sensor and the second sensor includes a Hall sensor.

7. The actuator as claimed in claim 6, characterized in that, The first housing (1,1') is fixed with a first gear shaft (A1,A1'). The first transmission mechanism (4,4') includes a first gear set (41,41'), which is a double gear set. The first gear set (41,41') is sleeved on the first gear shaft (A1,A1'). The second housing (2,2') has a limiting protrusion (21), which has a mounting hole (210). The ends of the gear shafts (A1, A1') are located in the mounting holes (210); the first gear set (41, 41') includes a first worm gear (411, 411') and a first sub-gear (412, 412'), and the drive portion (30, 30') protruding from the first axial end (371, 371') is defined as the first drive portion (301, 301'), and the first drive portion (301, 301') also includes a first worm (361, 361'). The first worm gear (411, 411') and the first worm (361, 361') are directly connected by transmission. The actuator also includes an elastic element (4a) along the axial direction of the first gear set (41, 41'). The elastic element (4a) is disposed in a compressed state between the first worm gear (411, 411') and the limiting protrusion (21, 21'). A magnetic element (4b) is provided on the side of the first worm gear (411, 411') facing the second housing (2, 2'). A coil (2a) is provided on the side of the second housing (2, 2') facing the first worm gear (411, 411'). When the coil (2a) is energized, it can drive the first gear set (41, 41') to move along the axial direction of the first gear set (41, 41') through the magnetic element (4b) to disconnect the transmission connection between the first drive unit (301, 301') and the first transmission mechanism (4, 4').

8. The actuator as claimed in claim 6, characterized in that, The actuator has a motor support (33, 33') with a groove (34, 34'), the motor assembly (3, 3') includes an axial protrusion (32, 32') located in the groove (34, 34'), the axial protrusion (32, 32') abutting against the groove wall defining the groove (34, 34'), and the drive unit (30, 30') protruding from the axial protrusion (32, 32'). The actuator further includes a connector (11,11') which is electrically connected to the motor assembly (3,3'). The connector (11,11') includes a connector housing and a connection terminal disposed in the connector housing. The connector housing is integrally or sealedly connected to the housing of the actuator.

9. The actuator as claimed in claim 8, characterized in that, The motor support portion (33, 33') includes a first support portion (331') and a second support portion (332'), the first support portion (331') and the second support portion (332') are arranged side by side along the axial direction of the motor assembly (3, 3'), the groove (34, 34') includes a first groove (341') ​​and a second groove (342'), the first groove (341') ​​is formed in the first support portion (331'), and the second groove (342') is formed in the second support portion (332'); the axial protrusion (32, 32') is located on the groove wall defining the first groove (341'), and the end of the drive portion (30, 30') is located on the groove wall defining the second groove (342'); The first transmission mechanism (4,4') includes a first gear set (41,41') and a second gear set (42,42'). The first gear set (41,41') includes a first worm gear (411,411') and a first sub-gear (412,412'), which are coaxially arranged. The second gear set (42,42') includes a second sub-gear (421,421') and a third sub-gear (422,422'). The first drive unit (30, 30') and the third sub-gear (422, 422') are arranged coaxially. The drive unit (30, 30') protruding from the first axial end (371, 371') is defined as the first drive unit (301, 301'). The first drive unit (301, 301') also includes a first worm (361, 361'). The first worm wheel (411, 411') and the first worm (361, 361') are connected in a transmission. The first sub-gear (412, 412') and the second sub-gear (421, 421') are connected in a transmission. The third sub-gear (422, 422') and the first output gear (6, 6') are connected by a transmission connection; or, the second transmission mechanism (5, 5') includes a third gear set (53, 53') and a fourth gear set (54, 54'), the third gear set (53, 53') including a second worm gear (531, 531') and a fourth sub-gear (532, 532'), the second worm gear (531, 531') and the fourth sub-gear (532, 532') being coaxially arranged; the fourth gear set (54, 5... 4') includes a fifth sub-gear (541, 541') and a sixth sub-gear (542, 542'), which are coaxially arranged. The second drive unit (302, 302') also includes a second worm (362, 362'), which is driven by the second worm wheel (531, 531') and the second worm (362, 362'). The fourth sub-gear (532, 532') is driven by the fifth sub-gear (541, 541'). The sixth sub-gear (542) and the second output gear (7) are connected in a transmission connection; or, the second transmission mechanism (5') further includes a fifth gear set (55'), the fifth gear set (55') includes a seventh sub-gear (551') and an eighth sub-gear (552'), the seventh sub-gear (551') and the eighth sub-gear (552') are arranged coaxially, the sixth sub-gear (542') and the seventh sub-gear (551') are connected in a transmission connection, and the eighth sub-gear (552') and the second output gear (7') are connected in a transmission connection.

10. An actuator, characterized in that, The actuator has a receiving cavity (10,10') and includes a motor assembly (3,3'), a first transmission mechanism (4,4'), and a second transmission mechanism (5,5'). The motor assembly (3,3') is located in the receiving cavity (10,10'). The motor assembly (3,3') includes a motor body (31,31') and a drive unit (30,30'). The drive unit (30,30') protrudes from the axial end (37,37') of the motor body (31,31') and is rotatable relative to the motor body (31,31'). The first transmission mechanism (4,4') and the second transmission mechanism (5,5') are connected to the same drive unit (30,30').

11. A valve device, characterized in that, The actuator includes a first valve core (C1), a second valve core (C2), and an actuator (A) as described in any one of claims 1-9. The first valve core (C1) is capable of being driven to the first output gear (6 / 6') of the first drive unit (301 / 301') of the actuator (A), and the second valve core (C2) is capable of being driven to the second output gear (7 / 7') of the second drive unit (302 / 302') of the actuator (A). The actuator (A) simultaneously drives the first valve core (C1) and the second valve core (C2) to rotate.

Images