A two-way clutch device, an actuator using the same, and a household appliance.

Abstract

This utility model discloses a bidirectional clutch device and an actuator and household appliance using the same, including a clutch assembly, a motor assembly, and an actuator assembly. The clutch assembly includes a driving member, a driven member, and a clutch element. The motor assembly is mounted on a housing and connected to the driving member. The actuator assembly is connected to the driven member. In the initial state, the driving member and the driven member are separated. The clutch element connects the driving member and the driven member in a transmission connection only when the driving member rotates, thereby driving the actuator assembly to move. In the bidirectional clutch device of this utility model, the clutch assembly connects the driving member and the driven member only when the driving member moves, and the driving member is driven by the motor assembly. Therefore, there is no need to set up a separate drive structure to open the clutch assembly, which not only simplifies the structure but also makes the start-stop consistency of the motor assembly and the clutch assembly higher, improving the operational stability of the mechanism.

Description

Technical Field

[0001] This utility model relates to the field of clutch device design technology, and in particular to a two-way clutch device, an actuator using the same, and household appliances. Background Technology

[0002] A clutch is a device used to disconnect or connect a drive component and an actuator. To avoid emergencies such as power outages or power trips, most actuators are currently equipped with both manual and electric drive modes. In this case, a clutch is installed between the electric drive component and the actuator. When driven manually, the electric drive component is separated from the actuator.

[0003] Existing clutch devices are mostly independently controlled components. For example, the clutch device disclosed in patent number CN202222488384.9 is driven by a push rod. By pushing the push rod, the transmission connection assembly can be pushed upward to connect with the first transmission assembly. When the push rod is released, the transmission connection assembly moves downward to separate from the first transmission assembly under the action of the separation assembly. Another example is the clutch structure disclosed in patent number CN201921380282.7, which uses an electromagnet to drive and control the motor assembly to disconnect or connect with the lead screw assembly. Since the clutch device needs to be started independently, an additional control program is required to connect the clutch device and the drive component. This not only increases the complexity of the structure but also the complexity of the program control, thereby increasing the cost of use. If the start and stop of the clutch device cannot be perfectly coordinated with the start and stop of the drive component, operational malfunctions may occur, affecting operational stability.

[0004] In addition, the clutch device that uses electromagnets to drive the clutch function has the following problems: the electromagnet will generate a lot of heat after continuous use, and the heat will reduce its thrust, resulting in insufficient thrust and affecting the connection and disengagement of the clutch device. Utility Model Content

[0005] To address the technical problems of high operating costs and poor operational stability in existing clutch devices that require independent start-up and separate control programs to connect the clutch device and drive components, this invention provides a bidirectional clutch device, an actuator using it, and a household appliance to solve these problems.

[0006] This utility model proposes a bidirectional clutch device, including a clutch assembly, a motor assembly, and an actuation assembly. The clutch assembly includes a driving element, a driven element, and a clutch element. The motor assembly is mounted on a housing and connected to the driving element. The actuation assembly is connected to the driven element. In the initial state, the driving element and the driven element are separated. When the driving element rotates, the clutch element drives the driving element and the driven element to connect, thereby driving the actuation assembly to move.

[0007] In an optional embodiment of this utility model, the clutch includes a cage and a plurality of rolling columns. The driving member has a plurality of circumferentially spaced actuating portions. The rolling columns are located between two adjacent actuating portions. The cage and the driven member are located on the inner and outer sides of the actuating portions, respectively. The outer circumferential surface of the cage has an outer clearance portion corresponding to each rolling column. The inner circumferential surface of the driven member has a radially inwardly protruding transition portion. The transition portion fits against the outer circumferential surface of the actuating portion. When the driving member rotates, the rolling columns can move to the outer circumferential surface of the cage. The diameter of the rolling columns is greater than the difference between the inner diameter of the transition portion and the outer diameter of the cage.

[0008] In an optional embodiment of this utility model, the rolling column is made of metal, and the cage is provided with an annular first insert, which can adsorb the rolling column.

[0009] In an optional embodiment of this utility model, the output end of the motor assembly is provided with a drive gear, the driving member is a driving gear meshing with the drive gear; the actuating part is located on the end face of the driving gear; the input end of the execution assembly is provided with an output gear, the driven member is a driven gear meshing with the output gear, and the transition part is located on the inner circumference of the driven gear.

[0010] In an optional embodiment of this utility model, the end of the drive gear is further provided with a central shaft that rotates with the inner circumference of the cage.

[0011] In an optional embodiment of this utility model, the outer peripheral surface of the central shaft is provided with a plurality of protruding ribs at intervals, and the inner peripheral surface of the retainer has a plurality of concave inner relief portions. The protruding ribs are located within the inner relief portions and can slide within the inner relief portions.

[0012] In an optional embodiment of this utility model, the retainer is attached to the surface of the housing, and the end face of the retainer facing the housing is provided with a second insert for adsorbing the housing, and the adsorption force between the second insert and the housing is greater than the adsorption force between the first insert and the rolling column.

[0013] In an optional embodiment of this utility model, the driven gear has an upper support surface that contacts the end of the rolling column and a lower support surface that contacts the end of the cage. The cage has an axially protruding frustum, which fits against the surface of the housing.

[0014] In an optional embodiment of this invention, the actuating component includes a transmission belt connected to the output gear, a connecting rod mounted on the transmission belt, and a balance shaft guiding the connecting rod.

[0015] This utility model also proposes an actuator, including a housing and the bidirectional clutch device described above, wherein the housing has an opening for the actuator to extend out.

[0016] This utility model also proposes a household appliance, including a cabinet, a door, and the aforementioned actuator, wherein the actuator is mounted on the cabinet and the end of the actuator is connected to the door.

[0017] The beneficial effects of this utility model are: (1) In the bidirectional clutch device described in this utility model, the clutch assembly connects the driving member and the driven member only when the driving member moves, and the driving member is driven by the motor assembly. Therefore, there is no need to set up a separate drive structure to open the clutch assembly, which not only simplifies the structure, but also makes the start-stop consistency of the motor assembly and the clutch assembly higher and improves the stability of the mechanism operation.

[0018] (2) Since the actuator is connected to the driven member, and the movement of the driven member will not cause the clutch assembly to open, the present invention will not interfere with the motor assembly when performing manual operation.

[0019] (3) This utility model uses the irregular design of the active part, driven part and cage surface to make the rolling column move between the driven part and the cage within the space defined by the action part, so as to realize the transmission connection or disconnection between the active part and the driven part. The structure is compact and occupies a small area. Attached Figure Description

[0020] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0021] Figure 1 This is an exploded view of the actuator described in this utility model; Figure 2 This is an exploded view of the clutch assembly in this utility model; Figure 3 This is a perspective view of the drive gear in this utility model; Figure 4 This is a perspective view of the cage in this utility model (viewed from the top). Figure 5 This is a perspective view of the cage in this utility model (viewed from the bottom). Figure 6 This is a perspective view of the driven gear in this utility model; Figure 7 This is a perspective view of the output gear in this utility model; Figure 8 This is an exploded view of the execution component in this utility model; Figure 9 This is a perspective view of the shell in this utility model; Figure 10 This is an axial sectional view of the clutch assembly after assembly in this utility model; Figure 11This is a perspective view of the execution component in this utility model; Figure 12 This is an assembly diagram of the actuator and the transmission belt in this utility model; Figure 13 This is an internal schematic diagram of the actuator described in this utility model; Figure 14 This is an axial sectional view of the clutch assembly and housing after assembly in this utility model; Figure 15 This is a diagram showing the end engagement state of the clutch assembly when the actuator of this utility model is in its initial state; Figure 16 This is a diagram showing the state of the rolling column about to leave the outer clearance part after the motor assembly in the actuator of this utility model rotates clockwise. Figure 17 This is a diagram showing the end engagement state of the clutch assembly when it is started in this utility model. Figure 18 It is by Figure 17 A schematic diagram of the motor assembly in reverse state; Figure 19 This is a schematic diagram of the execution component in this utility model when it is started from the initial state; Figure 20 The execution component in this utility model is composed of Figure 19 The state diagram when the position shown is moved to the rightmost extreme position; Figure 21 This is a schematic diagram of the clutch assembly in the disengaged state; Figure 22 This is a schematic diagram of the installation of the actuator described in this utility model in a household appliance.

[0022] In the diagram, 1. Housing, 2. Door, 3. Connecting screw, 4. Motor assembly, 5. Clutch assembly, 51. Drive gear, 511. Drive gear, 512. Central hole, 513. Actuating part, 5131. Side actuating surface, 5132. Outer arc surface, 5133. Inner arc surface, 514. Protruding rib, 515. First lower end face, 516. Central shaft, 517. Second lower end face, 52. Rolling column, 53. Cage, 530. Upper mating surface, 531. First insert, 532. Inner diameter surface, 533. Inner clearance part, 534. Outer clearance part, 535. Outer circular surface, 536. Second insert, 537. Lower mating surface, 538. Supporting mating surface, 539. Side wall, 54. Driven gear, 541. Driven gear, 542. Concave part, 54 3. Upper support surface; 544. Lower support surface; 545. Inner wall; 546. Transition section; 6. Output gear; 61. Output tooth; 62. Transmission section; 7. End cover screw; 8. Pressing end cover; 9. Sensor; 10. Auxiliary wheel; 11. Balance shaft; 12. Transmission belt; 13. Actuation component; 131. Pin; 132. Small magnet; 133. Stabilizing block; 134. Drive block; 135. Connecting rod; 136. Fixing screw; 137. Snap ring; 14. Housing; 141. Mounting area; 142. First fixed shaft; 143. Annular insert; 144. Shaft platform; 145. Second fixed shaft; 146. Left fixed block; 147. First slot; 148. Second slot; 149. Right fixed block; 1410. Third fixed shaft; 1411. Opening. Detailed Implementation

[0023] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0024] A bidirectional clutch device includes a clutch assembly 5, a motor assembly 4, and an actuation assembly 13. The clutch assembly 5 includes a driving element, a driven element, and a clutch element. The motor assembly 4 is mounted on a housing 14 and connected to the driving element. The actuation assembly 13 is connected to the driven element, that is, the motor assembly 4 is linked with the driving element, and the actuation assembly 13 is linked with the driven element. In the initial state, the driving element and the driven element are separated. The clutch element drives the driving element and the driven element to connect in a transmission connection only when the driving element rotates, thereby driving the actuation assembly 13 to move.

[0025] Since the driving component is linked with the motor assembly 4, meaning the driving component is driven to rotate by the motor assembly 4, the clutch assembly 5 is started under the drive of the motor assembly 4. The starting state of the clutch assembly 5 refers to the state in which the clutch assembly 5 connects the motor assembly 4 and the actuator 13. In other words, the driving component is connected to the driven component through the clutch assembly. Compared with the prior art, this utility model does not require an additional starting structure for the clutch assembly 5, which simplifies the overall structure, reduces the cost of use, and ensures the consistency of the start and stop of the motor assembly 4 and the clutch assembly 5, thereby making the mechanism run more stably.

[0026] In addition, since the clutch assembly 5 in this utility model is only driven by the motor assembly 4, when it is directly manually controlled at one end of the execution assembly 13, the clutch assembly 5 will not be opened. That is, during manual operation, the driven part and the driving part are in a separate state and cannot transmit power to each other. Therefore, the stopping of the motor assembly 4 will not interfere with the manual operation.

[0027] The bidirectional clutch device is described below with reference to specific embodiments.

[0028] Example 1 A two-way clutch device, such as Figures 1-8 As shown, the assembly includes a clutch assembly 5, a motor assembly 4, and an actuator assembly 13. The clutch assembly 5 includes a driving member, a driven member, and a clutch element. The clutch element includes a cage 53 and multiple rolling columns 52. The driving member has multiple circumferentially spaced actuating portions 513, each actuating portion 513 being arc-shaped. The two sides of the actuating portion 513 form side actuating surfaces 5131. The rolling columns 52 are located between the side actuating surfaces 5131 of two adjacent actuating portions 513. The cage 53 and the driven member are located on the inner and outer sides of the actuating portions 513, respectively. The outer peripheral surface of the cage 53 has an outer clearance portion 534 corresponding to each rolling column 52. The inner peripheral surface of the driven member has a radially inwardly protruding transition portion 546, which fits against the outer peripheral surface of the actuating portion 513. When the driving member rotates, the rolling columns 52 can move to the outer peripheral surface of the cage 53. The diameter of the rolling column 52 is greater than the difference between the inner diameter of the transition portion 546 and the outer diameter of the cage 53.

[0029] The outer clearance portion 534 is recessed inward. Initially, the outer clearance portion 534 is located between two adjacent actuating portions 513, and the rolling column 52 is embedded in the outer clearance portion 534. At this time, the outer peripheral surface of the rolling column 52 does not exceed the transition portion 546. When the driven member rotates, it will not drive the rolling column 52 to rotate. Therefore, the driven member cannot engage with the driving member through the clutch. However, when the motor assembly 4 drives the driving member to rotate, the side actuating surface 5131 of the driving member will push the rolling column 52 away from the outer clearance portion 534. When the rolling column 52 reaches the outer peripheral surface of the cage 53, since the diameter of the rolling column 52 is greater than the difference between the inner diameter of the transition portion 546 and the outer diameter of the cage 53 (both the outer diameter and inner diameter refer to the radius), the outer surface of the rolling column 52 will exceed the transition portion 546. Therefore, the driving member drives the driven member to rotate by pushing the transition portion 546 through the rolling column 52, thereby driving the actuator 13 to move and realizing electric operation.

[0030] In order for the rolling column 52 to move to the outer peripheral surface of the cage 53 when the driving member rotates, it is necessary to ensure that the rolling column 52 moves before the cage 53.

[0031] To ensure that the rolling column 52 fits snugly against the outer clearance portion 534 in the initial state, in a preferred embodiment, the rolling column 52 is made of metal, and the retainer 53 has an annular first insert 531 inside, which can attract the rolling column 52. The first insert 531 is a magnet, located inside the outer clearance portion 534, and the rolling column 52 is attracted to the surface of the outer clearance portion 534 by the attraction of the magnet.

[0032] In this embodiment, three rolling columns 52 are provided, and the three rolling columns 52 are equally divided between the driving member and the driven member.

[0033] The connection between motor assembly 4 and the driving element can be, but is not limited to, the following structure: The output end of the motor assembly 4 is provided with a drive gear, and the driving element is a drive gear 51 that meshes with the drive gear; the actuating part 513 is located on the end face of the drive gear 51. In other optional embodiments, it can also be achieved through gear and rack meshing, worm gear engagement, etc.

[0034] Similarly, the execution component 13 and the driven component are connected by the following structure: The input end of the actuator 13 is provided with an output gear 6, and the driven member is a driven gear 54 that meshes with the output gear 6. The transition part 546 is located on the inner circumference of the driven gear 54.

[0035] like Figure 3 and Figure 6As shown, the outer ring of the driving gear 51 is the driving tooth portion 511, and the center is a disk for placing the actuating part 513, the rolling column 52, the cage 53 and the driven gear 54. The outer ring of the driven gear 54 is the driven tooth portion 541. One end of the driven gear 54 has a recessed structure to form an inner circular surface. The transition portion 546 is located on the inner circular surface, and an inner concave portion 542 is formed between adjacent transition portions 546. That is, the radial dimension of the inner concave portion 542 is greater than the radial dimension of the transition portion 546.

[0036] like Figure 2 , Figure 4 and Figure 10 As shown, during installation, the driving gear 51 is located above the driven gear 54, and the top of the cage 53 is the upper mating surface 530.

[0037] In the axial direction, the lower end face of the driving gear 51 abuts against the upper end face of the rolling column 52 and the upper mating surface 530 of the cage 53. Here, the lower end face of the driving gear 51 is named the first lower end face 515. The lower ends of the actuating part 513, the rolling column 52, the cage 53, and the driven gear 54 can directly contact the housing 14.

[0038] In the circumferential direction, the rolling column 52 is limited by the side action surface 5131 of the action part 513.

[0039] In the radial direction, the outer circular surface 535 of the retainer 53 mates with the inner arc-shaped surface 5133 of the actuating part 513, and the outer arc-shaped surface 5132 of the actuating part 513 mates with the transition part 546 of the driven gear 54.

[0040] To ensure the coaxiality of the drive gear 51 and the cage 53, in a preferred embodiment, the end of the drive gear 51 is further provided with a central shaft 516 that rotates with the inner circumference of the cage 53. For example... Figure 3 As shown, the center shaft 516 has a central hole 512 for mounting a fixed shaft, and the end of the center shaft 516 is a second lower end face 517, which contacts the housing 14. At this time, in the radial direction, the inner diameter surface 532 of the retainer 53 mates with the outer surface of the center shaft 516.

[0041] Execution Component 13: This includes a drive belt 12 connected to the output gear 6, a connecting rod 135 mounted on the drive belt 12, and a balance shaft 11 that guides the connecting rod 135. For example... Figure 7 , Figure 12 and Figure 13 As shown, the output gear 6 is provided with a transmission part 62, and the housing 14 is also provided with an auxiliary wheel 10. The two ends of the transmission belt 12 are sleeved on the transmission part 62 and the auxiliary wheel 10 to ensure that the transmission belt 12 is in a taut state. When the output gear 6 rotates, it can drive the transmission belt 12 to perform transmission, thereby driving the connecting rod 135 to move along the axial direction of the balance shaft 11.

[0042] The connecting rod 135 can be directly fixed to the transmission belt 12, or it can adopt the following assembly structure: like Figure 8 and Figure 11 As shown, one end of the connecting rod 135 is connected to a drive block 134, which in turn connects to a stabilizing block 133. The connecting rod 135 forms a stable engagement with the drive block 134 through the cooperation of a pin 131 and a snap ring 137, allowing the connecting rod 135 to rotate freely around the pin 131. A transmission belt 12 is sandwiched between the stabilizing block 133 and the drive block 134, and the three are secured together by a fixing screw 136. The stabilizing block 133 has a shaft hole for the balance shaft 11. When a sensor 9 is provided, a small magnet 132 that mates with the sensor 9 can be embedded in the stabilizing block 133.

[0043] Example 2 This embodiment improves the assembly method of the cage 53 based on Embodiment 1. To prevent the rolling column 52 from deviating too far from the outer arc surface 5132, making it difficult for the rolling column 52 to return to the outer arc surface 5132 of the cage 53, the cage 53 preferably rotates together with the drive gear 51. However, this is on the premise that the cage 53 only starts to rotate after the clutch assembly 5 is engaged. This embodiment adopts the following structure: like Figure 14 As shown, the retainer 53 is attached to the surface of the housing 14, and the end face of the retainer 53 facing the housing 14 is provided with a second insert 536 that attracts the housing 14. An annular insert 143 is provided on the surface of the housing 14. The second insert 536, like the first insert 531, is also a magnet. The attraction force between the second insert 536 and the housing 14 ensures the initial fixation of the retainer 53. To ensure that the retainer 53 does not rotate when the drive gear 51 rotates and pushes the rolling column 52, the attraction force between the second insert 536 and the housing 14 is greater than the attraction force between the first insert 531 and the rolling column 52.

[0044] The rotation of cage 53 is achieved by the following structure, as follows: Figure 3 and Figure 4As shown, the outer circumferential surface of the central shaft 516 is provided with multiple raised ribs 514 at intervals, and the inner circumferential surface of the retainer 53 has multiple concave inner relief portions 533. The raised ribs 514 are located within the inner relief portions 533 and can slide within them. When the motor assembly 4 is initially started, the retainer 53 remains stationary, the drive gear 51 rotates, and the side action surface 5131 of the drive gear 51 pushes the rolling column 52 to the outer circumferential surface of the retainer 53, thereby driving the driven gear 54 to rotate. At the same time, the raised ribs 514 rotate within the inner relief portions 533. When the raised ribs 514 contact the end of the inner relief portions 533, and the motor assembly 4 continues to rotate, the retainer 53 can be driven to rotate together. In the initial state, the raised ribs 514 are located at the center of the inner relief portions 533. Whether the motor assembly 4 rotates forward or backward, the raised ribs 514 can rotate within the inner relief portions 533 without affecting the bidirectional clutch function of the clutch assembly 5.

[0045] Example 3 Based on the above embodiments, this embodiment encloses the rolling pin 52 between the driving gear 51 and the driven gear 54 in both the axial and radial directions, preventing the rolling pin 52 from contacting the housing 14, reducing wear, and ensuring the integrity of the clutch assembly 5. The specific structure is as follows: Driven gear 54 has an upper support surface 543 that contacts the end of rolling pin 52 and a lower support surface 544 that contacts the end of retainer 53. Retainer 53 has an axially protruding frustum that fits against the surface of housing 14. Figure 6 As shown, the inner bottom surface of the driven gear 54 after its end has sunk is the upper support surface 543. The center of the upper support surface 543 continues to sink to form the lower support surface 544. The second insert 536 is located at the end of the frustum; alternatively, the second insert 536 can be directly considered as a frustum. Figure 5 As shown, one end of the cage 53 connected to the frustum forms a support mating surface 538, and the end of the frustum forms a lower mating surface 537.

[0046] In this embodiment, axially, the upper end of the retainer 53 also contacts the end of the driving gear 51, the lower end support mating surface 538 of the retainer 53 mates with the upper support surface 543 of the driven gear 54, and the lower mating surface 537 mates with the lower support surface 544 of the driven gear 54. At this time, the rolling column 52 and the retainer 53 can be clamped in the driving gear 51 and the driven gear 54, and the four components can be assembled and then installed into the housing 14.

[0047] To ensure a compact structure, the inner wall 545 of the step where the lower support surface 544 is located can be fitted with the side wall 539 of the frustum in the radial direction.

[0048] Example 4 An actuator includes a housing 14 and the aforementioned bidirectional clutch device, the housing 14 having an opening 1411 for the actuator to extend out.

[0049] The structure of the housing 14 is as follows Figure 9 As shown, the housing 14 is provided with a mounting area 141 for mounting the motor assembly 4, a first fixed shaft 142 that mates with the central hole 512, a second fixed shaft 145 that mates with the output gear 6, a first slot 147 and a second slot 148 for mounting the sensor 9, a third fixed shaft 1410 that mates with the auxiliary wheel 10, and a left fixed block 146 and a right fixed block 149 for fixing the balance shaft 11.

[0050] like Figure 13 As shown, the motor assembly 4 is installed in the mounting area 141 and locked to the housing 14 by the connecting screws 3.

[0051] The clutch assembly 5 is mounted on the first fixed shaft 142 and can rotate around the shaft. Its lower end engages with the shaft platform 144. The second insert 536 of the clutch assembly 5 is magnetically connected to the annular insert 143 of the housing 14. At the same time, the drive gear 51 of the clutch assembly 5 meshes with the drive gear of the motor assembly 4.

[0052] The output gear 6 is mounted on the second fixed shaft 145, and its output teeth 61 mesh with the driven gear 54 of the clutch assembly 5. The auxiliary wheel 10 is mounted on the third fixed shaft 1410.

[0053] When the balance shaft 11 is placed horizontally, its left end engages with the left fixed end of the housing 14 and is secured by the clamping end cap 8 and the end cap screw 7; its right end engages with the right fixed end of the housing 14 and is secured by the clamping end cap 8 and the end cap screw 7.

[0054] Sensors 9 are installed in the first slot 147 and the second slot 148 respectively. The feedback signals from the two side sensors 9 are used to detect whether the execution component 13 is in place, thereby controlling the power supply to the motor component 4.

[0055] I. Working principle of clutch assembly 5: 1. Clutch assembly 5 in its initial state: ①For example Figure 14 As shown in the figure, the clutch assembly 5 and the housing 14 are assembled. The central hole of the whole is engaged with the first fixed shaft 142, and the lower end face is engaged with the shaft platform surface 144 of the housing 14 assembly. The second insert 536 and the annular insert 143 are engaged by magnetic force. In this way, in the initial state, the retainer 53 in the clutch assembly 5 and the housing 14 are in a relatively static state of attraction due to magnetic force.

[0056] ②For example Figure 15The diagram shows the internal state of the clutch assembly 5 at this time. The rolling column 52 is located between the action parts 513 of the drive gear 51, and is in contact with the outer clearance part 534 under the magnetic force of the first insert 531 of the retainer 53. The rolling column 52 is always between the two due to the obstruction of the side action surfaces 5131 on both sides of the action part 513.

[0057] 2. When the motor assembly 4 is energized to drive the clutch assembly 5: ① When the drive gear of motor assembly 4 drives the meshing drive gear 51 to rotate, the drive gear 51 moves according to... Figure 16 The direction of the arrow indicates rotation. At this time, the second insert 536 at the bottom of the retainer 53 and the annular insert 143 of the housing 14 are magnetically attracted, and the two remain relatively stationary; under the rotation of the drive gear 51, the side action surface 5131 of its action part 513 pushes the rolling column 52 to move along the outer clearance part 534 of the retainer 53, moving to Figure 16 The state is shown; at this time, the protruding rib 514 of the drive gear 51 also rotates within the inner relief part 533.

[0058] ② As the drive gear 51 continues to rotate, the rolling column 52 is pushed to Figure 17 In the state shown, the rolling column 52 is pushed out of the outer relief portion 534 by the side action surface 5131 and contacts the outer circular surface 535. At the same time, the rolling column 52 also contacts and engages with the inner concave portion 542 of the driven gear 54. Thus, the positional relationship at this time allows the driving gear 51, the rolling column 52 and the driven gear 54 to form a whole that can rotate synchronously. Meanwhile, the protruding rib portion 514 of the driving gear 51 also contacts the end of the inner relief portion 533 of the cage 53. Thus, the driving gear 51 will also rotate synchronously with the cage 53 as shown in the figure. The motor assembly 4 drives the driven gear 54 to rotate while driving the driving gear 51 to rotate.

[0059] 3. Through the action of the aforementioned clutch assembly 5, the output gear 6, which meshes with the driven gear 54, is also driven. As the output gear 6 rotates, it also drives the transmission belt 12, which in turn drives the connecting rod 135 connected to the transmission belt 12 to move along the balance shaft 11. When the connecting rod 135 moves to the predetermined position, the motor assembly 4 rotates in the opposite direction by a certain angle, causing the rolling pin 52 inside the clutch assembly 5 to separate from the driven gear 54 under the reverse push of the actuating part 513, and return to its original position. Figure 15 The initial state.

[0060] II. Movement mode of component 13; 1. In the initial position, the drive section connecting the actuator 13 and the transmission belt 12 is in the position... Figure 19In this state, the small magnet 132 engages with the sensor 9 at the first slot 147, and the sensor 9 on the left side feeds a signal back to the controller, indicating that the execution component 13 is in the initial position.

[0061] 2. When the drive output gear 6 rotates in the direction of the arrow, the transmission belt 12 also moves, which drives the actuator 13 to move to the right along the balance shaft 11. The end of the connecting rod 135 is connected to the outer door body 2, which drives the door body 2 to open.

[0062] 3. Driven by the transmission belt 12, the actuating component 13 moves to... Figure 20 When the position is shown, the sensor 9 on the right is triggered to indicate that the actuator 13 has moved into place. After receiving the feedback signal from the sensor 9, the controller cuts off the power to the motor assembly 4.

[0063] 4. The above describes the working state of the clutch assembly 5 and the execution assembly 13 when the door 2 is pushed outward by electric motor. When the door 2 is electrically retracted inward, the motor assembly 4 controls the clutch assembly 5 to reverse, and the execution assembly 13 will also move to the left until it contacts the sensor 9 on the left and then stops.

[0064] III. Operation mode of clutch assembly 5 in manual mode: As can be seen from the above, when the driving gear 51 and the driven gear 54 rotate synchronously, the driving gear 51 needs to push the rolling column 52 to engage with the driven gear 54; however, conversely, when the door 2 is manually opened or closed, the connecting rod 135 of the actuator 13 drives the output gear 6 to rotate via the transmission belt 12, and the output gear 6 meshes with the driven gear 54; for example... Figure 21 As shown in the diagram, the clutch assembly 5 is in the disengaged state. When the driven gear 54 is manually driven, the size of the circle where the transition part 546 of the driven gear 54 is located is shown by the dotted line in the figure. The size of the dotted line is slightly larger than the circle where the outer arc surface 5132 of the driving gear 51 and the outer diameter of the three rolling columns 52 are located. Thus, when the driven gear 54 rotates, it cannot drive the other parts in the clutch assembly 5. Therefore, when the door 2 is manually opened and closed, the driven gear 54 will only follow the rotation and will not connect with the driving gear 51.

[0065] Example 5 A household appliance includes a housing 1, a door 2, and the aforementioned actuator, wherein the actuator is mounted on the housing 1 and the end of the actuator is connected to the door 2.

[0066] Figure 22 The actuator is installed on the appliance. Its main body is installed on the appliance's casing 1 and connected to the door 2 via a connecting rod 135, thereby driving the door 2 to open and close.

[0067] In the description of this utility model, it should be understood that the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0068] In this specification, the illustrative expressions of the terms do not necessarily refer to the same embodiments. Moreover, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments.

[0069] Based on the above-described preferred embodiments of this utility model, and through the foregoing description, those skilled in the art can make various changes and modifications without departing from the technical concept of this utility model. The technical scope of this utility model is not limited to the contents of the specification, but must be determined according to the scope of the claims.

Claims

1. A bidirectional clutching device, characterized in that include: A clutch assembly, comprising a driving element, a driven element, and a clutch element; A motor assembly, which is mounted on a housing and connected to the drive component; An execution component, which is connected to a slave component; In the initial state, the driving member and the driven member are separated; the clutch engages the driving member and the driven member in a transmission connection if and only if the driving member rotates, thereby driving the actuator to move.

2. A bidirectional clutching device according to claim 1, characterized in that: The clutch includes a cage and multiple rolling columns. The driving member has multiple circumferentially spaced actuating parts. The rolling columns are located between two adjacent actuating parts. The cage and the driven member are located on the inner and outer sides of the actuating parts, respectively. The outer circumferential surface of the cage has an outer clearance portion corresponding to each rolling column. The inner circumferential surface of the driven member has a radially inwardly protruding transition portion. The transition portion fits against the outer circumferential surface of the actuating part. When the driving member rotates, the rolling column can move to the outer circumferential surface of the cage, and the diameter of the rolling column is greater than the difference between the inner diameter of the transition section and the outer diameter of the cage.

3. The bidirectional clutch device according to claim 2, characterized in that: The rolling column is made of metal, and the cage has an annular first insert that can attract the rolling column.

4. The bidirectional clutch device according to claim 2, characterized in that: The output end of the motor assembly is provided with a drive gear, and the driving element is a drive gear that meshes with the drive gear; the working part is located on the end face of the drive gear. The input end of the actuator is provided with an output gear, the driven member is a driven gear that meshes with the output gear, and the transition part is located on the inner circumference of the driven gear.

5. The bidirectional clutch device according to claim 4, characterized in that: The retainer is attached to the surface of the housing, and the end face of the retainer facing the housing is provided with a second insert for adsorbing the housing, and the adsorption force between the second insert and the housing is greater than the adsorption force between the first insert and the rolling column.

6. The bidirectional clutch device according to claim 5, characterized in that: The end of the drive gear is also provided with a central shaft that rotates with the inner circumference of the cage.

7. The bidirectional clutch device according to claim 6, characterized in that: The outer circumferential surface of the central shaft is provided with a plurality of raised ribs at intervals, and the inner circumferential surface of the retainer has a plurality of concave inner relief portions. The raised ribs are located within the inner relief portions and can slide within the inner relief portions.

8. The bidirectional clutch device according to claim 4, characterized in that: The driven gear has an upper support surface that contacts the end of the rolling column and a lower support surface that contacts the end of the cage. The cage has an axially protruding frustum that fits against the surface of the housing.

9. The bidirectional clutch device according to claim 4, characterized in that: The actuating components include a drive belt connected to the output gear, a connecting rod mounted on the drive belt, and a balance shaft that guides the connecting rod.

10. An actuator, characterized in that: It includes a housing and a bidirectional clutch device as described in any one of claims 1-9, wherein the housing has an opening for the actuator to extend out.

11. A household appliance, characterized in that: It includes a housing, a door, and the actuator as described in claim 10, wherein the actuator is mounted on the housing and the end of the actuator is connected to the door.

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