Clutch and clutch motor

Abstract

The present application relates to clutch and clutch motor technical field, specifically a kind of clutch and clutch motor, clutch includes magnetic separation disc, magnetic attraction disc, sleeve, ratchet wheel and clutch piece, the front cover of magnetic separation disc is in sleeve port, magnetic attraction disc is located in the back of magnetic separation disc, the inner peripheral wall of sleeve is equipped with recess, magnetic separation disc is non-magnetic material and front smooth, at least one of clutch piece and magnetic attraction disc is permanent magnet to make clutch piece in natural state can be attracted out recess and adsorbed on magnetic separation disc, ratchet wheel rotates can drive clutch piece move on magnetic separation disc until part is inserted into recess, to make ratchet tooth can be driven sleeve rotation by pushing and shoving clutch piece.This clutch is not limited by use environment, and can realize the clutch of two directions, magnetic separation disc front smooth and can play the role of magnetic separation, make the moving resistance of clutch piece smaller and more easily separate from the suction of magnetic attraction disc and embed in recess, clutch's engagement and disengagement are more smooth, not prone to jamming wear.

Description

TECHNICAL FIELD

[0001] The present application relates to the clutch and clutch motor technical field, and particularly relates to a clutch and clutch motor. BACKGROUND

[0002] With the development of motor technology, the motor equipped with a clutch has been widely used in various fields of industry or life, and the clutch is used to realize the switching between electric drive and manual drive, such as electric doors and windows in the field of construction and automobile field. The existing clutch is generally divided into electromagnetic clutch and mechanical clutch, wherein the electromagnetic clutch has relatively high requirements on the use conditions and environment, and cannot be used when power is lost, and cannot be used in some environments (such as low temperature and water), which not only leads to the failure to realize the switching between electric drive and manual drive, but also leads to the failure to open or close the door and window, and is inconvenient to use and has safety hazards. In addition, when the electric drive mechanism is running, the manual mode is difficult to intervene. Although some mechanical clutches can realize the switching between electric drive and manual drive, and are not easily affected by the use environment, the clutch is often not smooth in the switching between engagement and disengagement, the manual drive cannot be intervened when the motor rotates, the structure is complex, the size is large, and the clutch is not convenient to install. SUMMARY

[0003] In order to overcome the defects in the prior art, one of the tasks of the present application is to provide a clutch, which belongs to mechanical clutch, is not easily affected by the environment during use, has simple structure, can realize the clutch in two directions, the clutch is smooth in the switching between engagement and disengagement, is not easy to appear stuck and wear, the motor can be manually intervened at any time to realize the disengagement of the clutch when the motor rotates, and the clutch can quickly restore the engagement state when the manual intervention is stopped, and is convenient to use. The second task is to provide a clutch motor, and the third task is to provide an integrated clutch motor for a car door.

[0004] One of the tasks of the present application is achieved by the following technical scheme:

[0005] The clutch comprises a clutch housing, a clutch disc, a sleeve, a handle and at least one clutch element, wherein the sleeve is rotatably connected with the clutch housing, the clutch disc comprises fixedly-stacked magnetic isolation discs and magnetic attraction discs, the front surface of the magnetic isolation disc covers the sleeve port to form a clutch cavity, the magnetic attraction disc is located on the back surface of the magnetic isolation disc and is a circular structure concentric with the sleeve, the handle comprises a handle shaft and at least one handle tooth arranged on the handle shaft, the handle tooth and the clutch element are located in the clutch cavity, the handle shaft passes through the center hole of the magnetic isolation disc and the magnetic attraction disc in sequence and is used for directly or indirectly connecting a motor to input rotation, the inner circumferential wall of the sleeve is provided with at least one embedding groove for partially embedding the clutch element, the magnetic isolation disc is made of non-magnetic material and the front surface is smooth, the clutch element and the magnetic attraction disc are made of magnetic material and at least one of them is a permanent magnet, so that the clutch element can be attracted out of the embedding groove and adhered to the magnetic isolation disc in a natural state, and when the handle rotates, the clutch element can be driven to move on the magnetic isolation disc by the handle tooth until it is partially clamped in the embedding groove, so that the handle tooth can drive the sleeve to rotate through the clutch element exposed from the embedding groove.

[0006] As a preferred technical scheme, the magnetic attraction disc is a permanent magnet, the clutch element is a magnetic conductor, the outer diameter of the magnetic isolation disc is greater than the inner diameter of the sleeve, and the outer diameter of the magnetic attraction disc is equal to or slightly greater than the inner diameter of the sleeve, so that when the clutch element is adhered to the magnetic isolation disc, the side wall of the clutch element is tangent to the inner side wall of the sleeve.

[0007] As a preferred technical scheme, the clutch element is a magnetic metal ball or a magnetic metal cylinder, and at least one of the clutch housing, the sleeve and the handle is made of non-magnetic material.

[0008] As a preferred technical scheme, the handle tooth is a trapezoidal tooth, so that the included angle between the two side surfaces of the handle tooth and the inner circumferential wall of the sleeve is an acute angle, the end of the handle tooth is close to the inner side wall of the sleeve, the number of the handle teeth is two and the handle teeth are symmetrically arranged around the handle shaft, the number of the clutch elements is two and the clutch elements are respectively located on the two sides of the handle teeth, and the number of the embedding grooves is two and the embedding grooves are respectively located on the opposite sides of the inner circumferential wall of the sleeve.

[0009] The second task of the present application is achieved by the following technical scheme:

[0010] A clutch motor comprises a motor body, a gear box and the clutch described above, the output shaft of the motor is directly or indirectly connected with the handle shaft, the gear box comprises a gear box housing and first and second gears installed in the gear box housing and meshing with each other, the first gear is concentrically arranged with the sleeve and is in transmission connection with the sleeve, and the second gear is provided with an output through hole for the transmission shaft to pass through to output rotation.

[0011] As a preferred technical scheme, a speed reducer is further included, the motor body, the speed reducer, the clutch and the gear box are sequentially connected to form an L-shaped integrated structure, and the output shaft of the motor is in transmission connection with the handle shaft through the speed reducer.

[0012] The third task of the present application is achieved by the following technical solutions:

[0013] The integrated clutch motor for the middle door of the automobile comprises a shell, a motor body, a reducer and the clutch mentioned above installed in the shell, and an output mechanism extending out of the shell. The reducer comprises a reduction gear set, a gear ring, a rotating frame, a plurality of planetary gears rotatably arranged on the rotating frame, and a fixed gear installed in the shell. Each planetary gear is arranged around the circumference of the fixed gear and engages with it. The outer ring and the inner ring of the gear ring are respectively provided with an outer gear ring and an inner gear ring. The output end of the motor body is provided with a worm. The input end of the reduction gear set is provided with a worm wheel. The motor body is transversely arranged below the reducer and is connected to the reducer through the cooperation of the worm and the worm wheel. The output end of the reduction gear set is in meshing transmission with the outer gear ring, and the inner gear ring is in meshing transmission with each planetary gear, so as to drive the rotating frame to output rotation. The shaft of the rotating frame is in transmission connection with the said shift shaft, so as to drive the said shift wheel to rotate.

[0014] As a preferred technical solution, the shell comprises a first shell and a second shell connected and fixedly connected. The cross section of the second shell is smaller than that of the first shell. The motor body and the reducer are arranged in the first shell, and the clutch is arranged in the second shell. The rear end face of the second shell is fixedly connected or integrally formed with the first shell. At least one outwardly protruding mounting plate is arranged on the front end face. Mounting holes are arranged on the mounting plate. The output mechanism is an output shaft extending out of the front end face of the second shell. An output gear is arranged on the output shaft.

[0015] As a preferred technical solution, the inner side wall of the shell and the fixed gear are respectively provided with plug-in limiting structures matched with each other, so that the fixed gear can be plugged in the shell and cannot rotate.

[0016] As a preferred technical solution, the plug-in limiting structure comprises a plug-in cylinder fixedly arranged on the inner side wall of the shell and a plug-in head fixedly arranged on the back of the fixed gear. The inner side wall of the plug-in cylinder and the outer side wall of the plug-in head are provided with matched plug-in grooves and protrusions.

[0017] Compared with existing technologies, the clutch and clutch motor of this invention are mechanical clutches, which are less affected by the environment during use and have a simple structure. They can achieve clutching in both forward and reverse directions. Moreover, by setting a partition disk with a flat and smooth one-piece structure on the front side of the partition disk, the resistance when the clutch component moves on the partition disk is reduced. Furthermore, the magnetic shielding effect of the partition disk prevents the clutch component from being directly attracted to the magnetic chuck. When the dial wheel rotates and pushes the clutch component, it is easier for the clutch component to break away from the magnetic chuck under the action of centrifugal force and embed into the groove. Therefore, the engagement and disengagement of the clutch is smoother and less prone to jamming and wear. The clutch can also be disengaged at any time by manual intervention while the motor is rotating, and the clutch can quickly return to the engaged state when manual intervention is stopped, making it convenient to use.

[0018] The following will further explain the concept, specific structure and effects of the present invention in conjunction with the accompanying drawings, so as to fully understand the purpose, features and effects of the present invention. Attached Figure Description

[0019] Figure 1 This is an exploded structural diagram of the clutch in the engaged state in Example 1;

[0020] Figure 2 This is an exploded structural diagram of the clutch in the disengaged state in Example 1;

[0021] Figure 3 This is a schematic diagram of the clutch motor in Example 2;

[0022] Figure 4 This is a schematic diagram of the clutch motor in Example 2 after omitting the gearbox housing.

[0023] Figure 5 This is a schematic diagram of the integrated clutch motor used in the middle door of a car in Example 3;

[0024] Figure 6 for Figure 5 One of the schematic diagrams of the decomposed structure;

[0025] Figure 7 for Figure 5 The second schematic diagram of the decomposed structure;

[0026] Figure 8 for Figure 5 The third diagram of the decomposed structure.

[0027] Wherein: clutch 10, clutch housing 11, clutch disc 12, isolation disc 121, magnetic disc 122, sleeve 13, embedded groove 131, dial 14, dial shaft 141, dial teeth 142, clutch element 15, first motor body 21, gear box 22, gear box housing 221, first gear 222, second gear 223, output through hole 2231, first speed reducer 23, housing 31, first housing 311, second housing 312, mounting plate 3121, plug 313, plug groove 3131, second motor body 32, worm 321, second speed reducer 33, speed reduction gear set 331, worm wheel 3311, tooth ring 332, outer gear ring 3321, inner gear ring 3322, rotating frame 333, planetary gear 334, fixed gear 335, plug 3351, convex strip 3352, output gear 34. DETAILED DESCRIPTION

[0028] In order to make the purpose, technical scheme and advantages of the present application more clear, the following will be further described in conjunction with the drawings and examples. It should be understood that the specific examples described herein are only used to explain the present application, and are not used to limit the present application.

[0029] It should be noted that when an element is referred to as "connected" or "mounted" to another element, it can be directly connected or mounted to the other element, or indirectly connected or mounted to the other element through an intermediate element, or in an integral structure. In addition, the terms "upper", "lower", and similar expressions used herein are for the purpose of illustration only, and do not indicate the only implementation; "first", "second", and similar terms do not indicate any order, number or importance, but are only used to distinguish different components; "one" or "an" and similar terms do not indicate a quantity limit, but indicate the existence of at least one; "several", "multiple" and similar terms indicate two or more. The "magnetic material" in this patent includes soft magnetic material and hard magnetic material, "magnetic conductor" refers to soft magnetic material, "permanent magnet" refers to hard magnetic material, and "non-magnetic material" refers to non-magnetic material, such as copper and other non-ferrous metals, also known as non-ferromagnetic material.

[0030] Example 1:

[0031] As Figures 1-2As shown, a kind of clutch 10, including clutch housing 11, clutch disc 12, sleeve 13, handle 14 and at least one clutch piece 15, wherein sleeve 13 is rotatably connected with clutch housing 11, clutch disc 12 includes fixedly arranged magnetic isolation disc 121 and magnetic attraction disc 122, the front cover of magnetic isolation disc 121 is matched to form clutch cavity with the port of sleeve 13, magnetic attraction disc 122 is located at the back of magnetic isolation disc 121 and is the circular structure concentric with sleeve 13, handle 14 includes handle shaft 141 and at least one handle tooth 142 arranged on handle shaft 141, handle tooth 142 and clutch piece 15 are located in clutch cavity, handle shaft 141 is successively from the center hole of magnetic isolation disc 121 and magnetic attraction disc 122 and is used to directly or indirectly connect motor to input rotation, the inner peripheral wall of sleeve 13 is provided with at least one embedding groove 131 for the partial embedding of clutch piece 15, magnetic isolation disc 121 is non-magnetic material and the front is smooth, clutch piece 15 and magnetic attraction disc 122 are magnetic material and at least one of them is permanent magnet so that clutch piece 15 can be attracted out of embedding groove 131 and adsorbed on magnetic isolation disc 121 in natural state, handle 14 can drive clutch piece 15 to slide on magnetic isolation disc 121 until partial card enters embedding groove 131 by handle tooth 142, so that handle tooth 142 can drive sleeve 13 to rotate by clutch piece 15 exposed from embedding groove 131.The working principle of the clutch 10 is as follows: the handle shaft 141 of the clutch 10 is directly or indirectly (such as through a speed reducer) drivingly connected with the motor, when the motor rotates forward or reversely, the handle 14 can be driven to rotate, thus under the joint action of the pushing of the handle tooth 142 and the centrifugal force, the clutch piece 15 can move outward on the magnetic isolation disc 121 until partial card enters the embedding groove 131 of the sleeve 13 under the magnetic attraction force of the magnetic attraction disc 122, and the handle tooth 142 continues to rotate and drives the sleeve 13 to rotate through the clutch piece 15 exposed from the embedding groove 131, that is, the engagement state of the clutch 10 is realized; when the motor stops, or although the motor has not stopped, the sleeve 13 is driven to rotate in the same direction as the handle shaft 141 at a speed greater than that of the handle shaft 141, the clutch piece 15 obtains free space and can quickly separate from the embedding groove 131 of the sleeve 13 and be adsorbed on the magnetic isolation disc 121 under the magnetic attraction force of the magnetic attraction disc 122, at this time, the handle tooth 142 and the sleeve 13 are in disengaged state, and the rotation of the sleeve 13 will not interfere with the handle 14 and the motor, that is, the disengaged state of the clutch 10 is realized, at this time, if the motor is still running and the external force stops, the handle 14 will quickly push the clutch piece 15 into the embedding groove 131 of the sleeve 13 again to realize the engagement of the clutch 10.It needs to be explained that, since the motor (or speed reducer) itself will have some matching clearances, when the motor stops, even if no program is set to make the motor reverse, the clutch piece 15 can also obtain a little free space, of course, if the motor is slightly reversed after stopping, the clutch piece 15 can obtain more free space.

[0032] The clutch 10 provided by the embodiment belongs to mechanical clutch, is not easy to be affected by environment during use, has simple structure, can realize clutching in two directions, and through the setting of the magnetic isolation disc 121 and the flat and smooth integrated structure of the front surface of the magnetic isolation disc 121, the resistance of the clutch part 15 during movement on the magnetic isolation disc 121 is smaller, and through the magnetic isolation effect of the magnetic isolation disc 121, the clutch part 15 will not be directly adsorbed on the magnetic adsorption disc 122, when the dial 14 rotates to push the clutch part 15, the clutch part 15 is more easily separated from the adsorption of the magnetic adsorption disc 122 under the centrifugal force and embedded in the embedding groove 131, so that the clutching and disengaging of the clutch 10 is more smooth, and the clutch 10 is not easy to be stuck and worn, and the clutch 10 can be disengaged at any time through manual intervention during rotation of the motor, and the clutch 10 can quickly restore the clutching state when the manual intervention is stopped, so that the clutch 10 is convenient to use.

[0033] As a preferred embodiment, the magnetic adsorption disc 122 is a permanent magnet, the clutch part 15 is a magnetic conductor, the outer diameter of the magnetic isolation disc 121 is greater than the inner diameter of the sleeve 13, and the outer diameter of the magnetic adsorption disc 122 is equal to or slightly greater than the inner diameter of the sleeve 13, so that when the clutch part 15 is adsorbed on the magnetic isolation disc 121, the side wall of the clutch part 15 is tangent to the inner side wall of the sleeve 13. For a circular or annular magnet, the area with the largest adsorption force is close to the outer edge, and in the patent, the outer diameter of the magnetic adsorption disc 122 is equal to or slightly greater than the inner diameter of the sleeve 13, so that when the clutch part 15 is adsorbed on the magnetic isolation disc 121, the outer side of the clutch part 15 can be as close as possible to the inner side wall of the sleeve 13, so that the dial 14 is more convenient to push the clutch part 15 to be clamped into the embedding groove 131, and the clutch part 15 is more convenient to be separated from the embedding groove 131, so that the clutch 10 is more convenient to clutch and disengage in the critical balance state.

[0034] As a preferred embodiment, the clutch part 15 is a magnetic conductor metal ball or a magnetic conductor metal cylinder, and at least one of the clutch housing 11, the sleeve 13 and the dial 14 is a non-magnetic material. Preferably, the clutch housing 11, the sleeve 13 and the dial 14 are all non-magnetic materials, so as to avoid interference with the magnetic adsorption force between the clutch part 15 and the magnetic adsorption disc 122, and also to avoid the influence caused by magnetization due to long-term use.

[0035] In a preferred embodiment, the teeth 142 are trapezoidal, such that the angles between the two sides of the teeth 142 and the inner peripheral wall of the sleeve 13 are both acute angles. The ends of the teeth 142 are close to the inner sidewall of the sleeve 13. There are two teeth 142, which are symmetrically arranged with the shaft 141 as the center. There are two clutches 15, which are located on both sides of the teeth 142 respectively. There are two grooves 131, which are located on opposite sides of the inner peripheral wall of the sleeve 13 respectively. This design ensures that the side of the shift teeth 142 can guide the clutch 15 regardless of whether the shift wheel 14 rotates clockwise or counterclockwise, making it easier to push the clutch 15 into the groove 131 of the sleeve 13. After the clutch 15 enters the groove 131, the side of the shift teeth 142 tilts and squeezes the clutch 15, applying both tangential thrust and radial outward pressure to the clutch 15. This makes it easier for the clutch 15 to be locked in the groove 131 and push the sleeve 13 to rotate.

[0036] Example 2:

[0037] like Figures 3-4 As shown, a clutch motor includes a first motor body 21, a gearbox 22, and the aforementioned clutch 10. The output shaft of the motor is directly or indirectly connected to the shift shaft 141. The gearbox 22 includes a gearbox housing 221 and a first gear 222 and a second gear 223 meshing with each other installed therein. The first gear 222 is concentrically arranged with the sleeve 13 and is drivenly connected to the sleeve 13. The axis of the second gear 223 is provided with an output through hole 2231 for the drive shaft to pass through and output rotation.

[0038] The clutch motor provided in this embodiment allows the drive shaft to pass through the output through hole 2231 and be connected to it for transmission. This enables one or more motors to drive the same drive shaft, using both ends of the drive shaft to output rotation. For example, when the clutch motor is used to drive the sliding of doors and windows, it can synchronously drive the racks set on both sides of the movable door and window sash through both ends of the drive shaft. Since both ends of the same drive shaft rotate completely synchronously and at the same speed, the smooth movement of the door and window sash can be achieved. Moreover, when the door and window sash is manually pushed or pulled, it can automatically switch from motor drive to manual drive. When the hand is released, the motor will seamlessly resume driving the door and window sash.

[0039] In a preferred embodiment, a first reducer 23 is also included. The first motor body 21, the first reducer 23, the clutch 10 and the gearbox 22 are sequentially connected to form an L-shaped integrated structure. The output shaft of the motor is connected to the dial shaft 141 through the first reducer 23. The motor adopts an integrated structure, which is compact, easy to install and occupies little space.

[0040] Example 3:

[0041] As Figures 5-8 shown in the figure, an integrated clutch motor for a center door of a car includes a housing 31, a second motor body 32, a second speed reducer 33 and the clutch 10 as described above installed in the housing 31, and an output shaft extending out of the housing 31, wherein the output shaft is provided with an output gear 34, the second speed reducer 33 includes a speed reduction gear set 331, a tooth ring 332, a rotating frame 333, a plurality of planetary gears 334 rotatably arranged on the rotating frame 333, and a fixed gear 335 installed in the housing 31, each planetary gear 334 is arranged around the circumference of the fixed gear 335 and engages with it, wherein the outer ring and the inner ring of the tooth ring 332 are respectively provided with an outer gear ring 3321 and an inner gear ring 3322, the output end of the second motor body 32 is provided with a worm 321, the input end of the speed reduction gear set 331 is provided with a worm wheel 3311, the second motor body 32 is transversely arranged below the second speed reducer 33 and is connected to the second speed reducer 33 through the cooperation of the worm 321 and the worm wheel 3311, the output end of the speed reduction gear set 331 engages with the outer gear ring 3321 for transmission, and the inner gear ring 3322 engages with each planetary gear 334 for transmission, so as to drive the rotating frame 333 to rotate, and the axis of the rotating frame 333 is connected to the driving shaft 141 for driving the ratchet wheel 14 to rotate.

[0042] The integrated clutch motor for a center door of a car provided by the embodiment adopts a mechanical clutch 10, is not easily affected by the use environment, can be normally used in power-off, low-temperature and high-temperature environments, can realize automatic clutching in two directions, and can smoothly switch between electric driving and manual driving, and the motor can be manually intervened or stopped at any time during operation, the clutch 10 can be automatically disengaged or automatically restored to engagement; and the motor, the second speed reducer 33 and the clutch 10 are integrated, the worm 321 is arranged at the output end of the motor, the worm wheel 3311 is arranged at the input end of the second speed reducer 33, the cooperation of the worm 321 and the worm wheel 3311 enables the motor to be transversely arranged below the second speed reducer 33, realizes flat design, has a small and compact structure, and can directly replace the existing electric driving mechanism of the center door of the car, and is easy to install.

[0043] As a preferred embodiment, the housing 31 comprises a first housing 311 and a second housing 312 connected in communication and fixed connection, the cross section of the second housing 312 is smaller than the first housing 311, wherein the second motor body 32 and the second speed reducer 33 are arranged in the first housing 311, the clutch 10 is arranged in the second housing 312, the rear end surface of the second housing 312 is fixedly connected or integrally formed with the first housing 311, and at least one outwardly protruding mounting plate 3121 is arranged on the front end surface of the second housing 312, and mounting holes are arranged on the mounting plate 3121. Since the cross section of the second housing 312 is smaller than the first housing 311, and the mounting plate 3121 is arranged on the front end surface of the second housing 312, an operation space is formed between the mounting plate 3121 and the first housing 311, which facilitates installation operation.

[0044] As a preferred embodiment, the inner side wall of the housing 31 and the fixed gear 335 are respectively provided with matching plug-in limiting structures, so that the fixed gear 335 can be plugged into the housing 31 and cannot rotate; preferably, the plug-in limiting structure comprises a plug barrel 313 fixedly arranged on the inner side wall of the housing 31 and a plug 3351 fixedly arranged on the back of the fixed gear 335, and the inner side wall of the plug barrel 313 and the outer side wall of the plug 3351 are provided with matching plug grooves 3131 and protrusions 3352. This design can ensure that the fixed gear 335 cannot rotate in the housing 31, is convenient to disassemble and assemble, and has a simple structure.

[0045] The above description is only the preferred embodiment of the present application and the explanation of the applied technical principles. Those skilled in the art should understand that the scope of the application involved in the present application is not limited to the technical solutions formed by the specific combination of the above technical features, and should also cover other technical solutions formed by any combination of the above technical features or equivalent features without departing from the inventive concept. For example, the above features can be replaced with the technical features disclosed in the present application (but not limited to) having similar functions to form technical solutions.

Claims

1. A clutch, characterized by The clutch comprises a clutch housing, a clutch disc, a sleeve, a handle and at least one clutch element. The sleeve is rotatably connected to the clutch housing. The clutch disc comprises fixedly stacked magnetic isolation disc and magnetic attraction disc. The front surface of the magnetic isolation disc covers the sleeve port to form a clutch cavity. The magnetic attraction disc is located on the back surface of the magnetic isolation disc and is a circular structure concentric with the sleeve. The handle comprises a handle shaft and at least one handle tooth arranged on the handle shaft. The handle tooth and the clutch element are located in the clutch cavity. The handle shaft passes through the center hole of the magnetic isolation disc and the magnetic attraction disc in sequence and is used for directly or indirectly connecting a motor to input rotation. The inner circumferential wall of the sleeve is provided with at least one embedding groove for partially embedding the clutch element. The magnetic isolation disc is made of non-magnetic material and has a smooth front surface. The clutch element and the magnetic attraction disc are made of magnetic material, and at least one of them is a permanent magnet so that the clutch element can be attracted out of the embedding groove and adhered to the magnetic isolation disc in a natural state. When the handle rotates, the clutch element can be moved on the magnetic isolation disc by the handle tooth until it is partially inserted into the embedding groove, so that the handle tooth can drive the sleeve to rotate through the clutch element exposed from the embedding groove. The outer diameter of the magnetic isolation disc is greater than the inner diameter of the sleeve, and the outer diameter of the magnetic attraction disc is equal to or slightly greater than the inner diameter of the sleeve, so that when the clutch element is adhered to the magnetic isolation disc, the side wall of the clutch element is tangent to the inner side wall of the sleeve.

2. The clutch of claim 1, wherein, The magnetic attraction disc is a permanent magnet, and the clutch element is a magnetic conductor.

3. The clutch of claim 1, wherein, The clutch element is a magnetic metal ball or a magnetic metal cylinder, and at least one of the clutch housing, the sleeve and the handle is made of non-magnetic material.

4. The clutch of claim 1, wherein, The handle tooth is a trapezoidal tooth, so that the included angle between the two side surfaces of the handle tooth and the inner circumferential wall of the sleeve is an acute angle. The end of the handle tooth is close to the inner side wall of the sleeve. The number of handle teeth is two and is symmetrically arranged around the handle shaft. The number of clutch elements is two and is located on the two sides of the handle tooth. The number of embedding grooves is two and is located on the opposite sides of the inner circumferential wall of the sleeve.

5. A clutch motor characterized by comprising: The clutch further comprises a motor body, a gear box and the clutch according to any one of claims 1-4. The output shaft of the motor is directly or indirectly connected to the handle shaft. The gear box comprises a gear box housing and first and second gears mounted in the gear box housing and meshing with each other. The first gear is concentrically arranged with the sleeve and is in transmission connection with the sleeve. The second gear has an output through hole for the transmission shaft to pass through to output rotation.

6. The clutch motor according to claim 5, characterized by The clutch further comprises a reducer. The motor body, the reducer, the clutch and the gear box are sequentially connected to form an L-shaped integrated structure. The output shaft of the motor is in transmission connection with the handle shaft through the reducer.

7. An integrated clutch motor for a door in an automobile, characterized by The clutch comprises a housing, a motor body, a speed reducer and the clutch of any one of claims 1-4 installed in the housing, and an output mechanism extending out of the housing, the speed reducer comprising a speed reduction gear set, a gear ring, a rotating frame, a plurality of planet gears rotatably arranged on the rotating frame, and a fixed gear installed in the housing, each planet gear being arranged around the circumference of the fixed gear and engaging with the fixed gear, wherein the outer ring and the inner ring of the gear ring are respectively provided with an outer gear ring and an inner gear ring, the output end of the motor body is provided with a worm, the input end of the speed reduction gear set is provided with a worm wheel, the motor body is transversely arranged below the speed reducer and is connected to the speed reducer through the cooperation of the worm and the worm wheel, the output end of the speed reduction gear set is in meshing transmission with the outer gear ring, and the inner gear ring is in meshing transmission with each planet gear, so as to drive the rotating frame to output rotation, the axis of the rotating frame is in transmission connection with the shift shaft, thereby enabling the shift wheel to rotate.

8. The integrated clutch motor for a center door in an automobile according to claim 7, characterized by, The housing comprises a first housing and a second housing connected and fixedly connected, the cross section of the second housing is smaller than that of the first housing, the motor body and the speed reducer are arranged in the first housing, the clutch is arranged in the second housing, the rear end face of the second housing is fixedly connected or integrally formed with the first housing, at least one outwardly protruding mounting plate is arranged on the front end face, and mounting holes are arranged on the mounting plate, and the output mechanism is an output shaft extending out of the front end face of the second housing, and an output gear is arranged on the output shaft.

9. The integrated clutch motor for a center door in an automobile according to claim 7, characterized by, The inner side wall of the housing and the fixed gear are respectively provided with plug-in limiting structures matched with each other, so that the fixed gear can be plugged into the housing and cannot rotate.

10. The integrated clutch motor for a center door in an automobile according to claim 9, characterized by, The plug-in limiting structure comprises a plug barrel fixedly arranged on the inner side wall of the housing and a plug fixedly arranged on the back of the fixed gear, and the inner side wall of the plug barrel and the outer side wall of the plug are provided with a plug groove and a protruding strip matched with each other.

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