Motor module with internal clutch

Abstract

The utility model discloses a motor module group with an internal clutch. The motor module group comprises a housing assembly; the main gear is rotationally arranged on the shell assembly; the main motor is fixedly arranged on the shell assembly; the gear reduction assembly is arranged in the shell assembly and connected with a rotating shaft of the main motor, and the gear reduction assembly comprises an output gear pair; the clutch structure comprises a support and a clutch gear, the support is movably arranged in the shell assembly and can rotate around the axis of the output gear pair, and the clutch gear is rotationally arranged on the support and meshed with the output gear pair; when the output gear pair rotates, the clutch gear can be driven to rotate around the axis of the output gear pair to be meshed with the main gear. The clutch structure is arranged on the motor module, the main gear can directly drive the mechanical lock body to operate, meshing transmission and separation of the clutch gear and the main gear are achieved through forward rotation and reverse rotation of the main motor, the requirement that the motor module drives the mechanical lock body to operate for unlocking and locking can be met, and the vacancy mode needed by key / knob unlocking and locking can be achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of intelligent locks, in particular to a motor module of an intelligent lock. Background Art

[0002] Currently, many door locks are equipped with intelligent locks. By inputting fingerprints, passwords, NFC signals, etc. as unlocking information, after the main control module of the intelligent lock verifies the unlocking information, it controls the operation of the internal motor module, thereby realizing the unlocking of the intelligent lock. After unlocking, the motor module of some intelligent locks will also operate to realize the automatic locking of the intelligent lock.

[0003] Intelligent locks usually are also equipped with key switch locks or knob switch locks to realize the emergency opening of the intelligent lock. To meet the requirements of key / knob switch locks, a vacant position mode needs to be set (in this mode, the key / knob can rotate to switch the lock, and the rotation torque of the key / knob will not be transmitted to the main motor of the motor module). Commonly, it is realized by the cooperation of the motor module and the transmission structure. For example, when the key or knob rotates, it directly drives the main gear to rotate, and the main gear drives the mechanical lock core to operate to switch the lock; a transmission structure composed of a half-tooth, a pick head, etc. is arranged between the main gear and the motor module; the motor module operates and is linked with the main gear through the transmission structure to realize switching the lock; after switching the lock, the motor module operates to reset, so that the motor module is no longer linked with the main gear through the transmission structure. At this time, the vacant position requirement for the rotation of the key / knob and the yielding requirement for the key to be pulled out can be ensured.

[0004] In the above structure, a transmission structure composed of a half-tooth, a pick head, etc. needs to be arranged between the motor module and the main gear, making the structure of the intelligent lock complex. And during the general assembly production of the intelligent lock, the parts of the transmission structure usually need to be installed one by one, making the assembly steps of the intelligent lock complicated. Summary of the Utility Model

[0005] The purpose of the utility model is to provide a motor module with an internal clutch, which can realize the vacant position mode required for key / knob switch locks and simplify the structure of the intelligent lock.

[0006] To achieve the above purpose, a motor module with an internal clutch is provided, which includes: a housing assembly; a main gear rotatably arranged on the housing assembly; a main motor fixedly arranged on the housing assembly; a gear reduction assembly arranged in the housing assembly and connected to the rotating shaft of the main motor, the gear reduction assembly includes an output gear pair; a clutch structure including a bracket and a clutch gear, the bracket is movably arranged in the housing assembly and can rotate around the axis of the output gear pair, the clutch gear is rotatably arranged on the bracket and meshes with the output gear pair; when the output gear pair rotates, it can drive the clutch gear to rotate around the axis of the output gear pair to mesh with the main gear.

[0007] According to the motor module with internal clutch described above, the bracket includes a chassis, a first fixing piece and a support shaft. The chassis and the first fixing piece are movably sleeved on the output gear pair. The support shaft is arranged between the chassis and the first fixing piece. The clutch gear is sleeved on the support shaft and can rotate around the axis of the support shaft.

[0008] According to the motor module with internal clutch described above, two clutch gears are provided and are respectively arranged on both sides of the output gear pair.

[0009] According to the motor module with internal clutch described above, the gear reduction assembly further includes a worm, a worm gear, a transmission gear, a first reduction gear pair and a second reduction gear pair. The worm is fixedly connected to the rotating shaft of the main motor and meshes with the worm gear. The worm gear and the transmission gear are fixedly connected, and the worm gear and the transmission gear are rotatably arranged in the housing assembly. The first reduction gear pair and the second reduction gear pair are arranged in the housing assembly. The transmission gear, the first reduction gear pair, the second reduction gear pair and the output gear pair are sequentially meshed.

[0010] According to the motor module with internal clutch described above, a second fixing piece is fixedly connected in the housing assembly. The first reduction gear pair includes a first gear set and a first gear shaft. The first gear set is sleeved on the first gear shaft. Both ends of the first gear shaft are respectively inserted into the housing assembly and the second fixing piece. The second reduction gear pair includes a second gear set and a second gear shaft. The second gear set is sleeved on the second gear shaft. Both ends of the second gear shaft are respectively inserted into the housing assembly and the second fixing piece.

[0011] According to the motor module with internal clutch described above, the output gear pair includes a third gear set and a third gear shaft. The third gear set is movably sleeved on the third gear shaft. Both ends of the third gear shaft are respectively inserted into the housing assembly. The first fixing piece is movably sleeved on the third gear shaft.

[0012] According to the motor module with internal clutch described above, the housing assembly includes a housing, a gearbox housing and a motor bottom cover which are sequentially connected. The output gear pair and the clutch structure are arranged between the gearbox body and the housing. The main motor is arranged between the motor bottom cover and the gearbox housing.

[0013] According to the motor module with internal clutch described above, a magnet sheet is coaxially arranged on the main gear. A plurality of magnetic induction parts are arranged at intervals around the magnet sheet on the housing assembly.

[0014] Advantageous effects: With the above structure, a clutch structure is provided in the motor module. The main gear can directly drive the mechanical lock body to operate, and the forward and reverse rotations of the main motor are used to realize the meshing transmission and separation of the clutch gear and the main gear, which can meet the requirement of the motor module to drive the mechanical lock body to operate for locking and unlocking, and can also realize the vacant position mode required for key / knob locking and unlocking; There is no need to set a transmission structure composed of half teeth, paddles, etc. between the motor module and the main gear, which simplifies the structure of the intelligent lock.

[0015] Additional aspects and advantages of the present utility model will be given in part in the following description, become apparent in part from the following description, or be understood through the practice of the present utility model. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The present utility model will be further described below in conjunction with the drawings and embodiments;

[0017] Figure 1 is a structural diagram of an embodiment of the present utility model;

[0018] Figure 2 is a first exploded view of an embodiment of the present utility model;

[0019] Figure 3 is a second exploded view of an embodiment of the present utility model;

[0020] Figure 4 is a schematic diagram of the cooperation between the main gear and the magnet sheet;

[0021] Figure 5 is a structural diagram of an embodiment of the present utility model after removing the housing assembly;

[0022] Figure 6 is a top view of an embodiment of the present utility model after removing the housing assembly;

[0023] Figure 7 is an exploded view of an embodiment of the present utility model after removing the housing assembly. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0024] This part will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the drawings. The role of the drawings is to supplement the description of the text part of the specification, enabling people to intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but it cannot be understood as a limitation on the protection scope of the present utility model.

[0025] In the description of the present utility model, terms such as "greater than", "less than", "exceeding", etc. are understood not to include the corresponding number, while terms such as "above", "below", "within", etc. are understood to include the corresponding number. If there is a description of "first" and "second", it is only for the purpose of distinguishing technical features and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features or the sequence relationship of the indicated technical features.

[0026] In the description of the present utility model, unless otherwise clearly defined, terms such as "set", "installed", "connected", etc. should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above terms in the present utility model in combination with the specific content of the technical solution.

[0027] Referring to Figure 1-7 , a motor module with an internal clutch, which includes a housing assembly 10, a main gear 20, a main motor 30, a gear reduction assembly 40 and a clutch structure 50. The main gear 20 is rotatably arranged on the housing assembly 10, the main motor 30 is fixedly arranged on the housing assembly 10, the gear reduction assembly 40 is arranged in the housing assembly 10, and the gear reduction assembly 40 is connected to the rotating shaft of the main motor 30. The gear reduction assembly 40 includes an output gear pair 41. The clutch structure 50 includes a bracket and a clutch gear 52. The bracket is movably arranged in the housing assembly 10 and can rotate around the axis of the output gear pair 41. The clutch gear 52 is rotatably arranged on the bracket, and the clutch gear 52 meshes with the output gear pair 41.

[0028] In some working modes: the main motor 30 can operate to drive the output gear pair 41 to rotate clockwise. The clutch gear 52 meshing with it rotates counterclockwise, and the clutch structure 50 rotates around the axis of the output gear pair 41. The clutch gear 52 moves closer to the main gear 20 until they mesh. Then, the main gear 20 can be driven to rotate clockwise through the clutch gear 52, and the mechanical lock body can be driven to operate through the main gear 20. After the main gear 20 rotates to the required angle, the main motor 30 switches to reverse operation, driving the output gear pair 41 to rotate counterclockwise, driving the clutch structure 50 to rotate so that the clutch gear 52 disengages from the main gear 20. At this time, the clutch gear 52 is separated from the main gear 20, and the intelligent lock reaches the empty position mode, and the key or knob can be freely rotated to lock or unlock. In addition, after the main motor 30 runs in reverse to separate the clutch gear 52 from the main gear 20, the main motor 30 can continue to run in reverse, driving the clutch structure 50 to continue to rotate so that the clutch gear 52 meshes with the main gear 20 again.

[0029] In the above structure, a clutch structure 50 is provided in the motor module. The main gear 20 can directly drive the mechanical lock body to operate. By using the forward and reverse rotation of the main motor 30, the meshing transmission and separation between the clutch gear 52 and the main gear 20 can be realized, which can meet the requirement of the motor module to drive the mechanical lock body to operate for locking and unlocking, and can also realize the vacant position mode required for key / knob locking and unlocking. There is no need to set up a transmission structure composed of half teeth, paddles, etc. between the motor module and the main gear 20, which simplifies the structure of the intelligent lock. Moreover, as an integral component, the motor module participates in the overall assembly of the intelligent lock, which can simplify the assembly process and improve the assembly production efficiency during the overall assembly production of the intelligent lock.

[0030] Among them, in order to detect the rotation direction and rotation angle of the main gear 20, a magnet sheet 60 is coaxially arranged on the main gear 20, and a plurality of magnetic induction components are arranged around the magnet sheet 60 at intervals on the housing assembly 10. Among them, the S / N poles of the magnet sheet 60 are arranged along the radial direction of the main gear 20. When the main gear 20 rotates, the magnetic field direction of the magnet sheet 60 also changes accordingly. By sequentially sensing the magnetic field by a plurality of magnetic induction components, the rotation direction and rotation angle of the main gear 20 can be detected.

[0031] In this embodiment, the bracket includes a chassis 511, a first fixing piece 512 and a support shaft 513. The chassis 511 and the first fixing piece 512 are movably sleeved on the output gear pair 41. The support shaft 513 is arranged between the chassis 511 and the first fixing piece 512. The clutch gear 52 is sleeved on the support shaft 513 and can rotate around the axis of the support shaft 513. For example, both ends of the support shaft 513 are rotatably inserted into the chassis 511 and the first fixing piece 512 respectively; the clutch gear 52 is rotatably sleeved on the support shaft 513.

[0032] In this embodiment, two clutch gears 52 are provided and are respectively arranged on both sides of the output gear pair 41. So that the clutch structure 50 is symmetrical, runs smoothly, and reduces the stroke required for the clutch gear 52 to rotate to engage with the main gear 20.

[0033] In this embodiment, the gear reduction assembly 40 further includes a worm 42, a worm gear 43, a transmission gear 44, a first reduction gear pair 45 and a second reduction gear pair 46. The worm 42 is fixedly connected to the rotating shaft of the main motor 30, and the worm 42 meshes with the worm gear 43. The worm gear 43 and the transmission gear 44 are fixedly connected, and the worm gear 43 and the transmission gear 44 are rotatably arranged in the housing assembly 10. The first reduction gear pair 45 and the second reduction gear pair 46 are arranged in the housing assembly 10. The transmission gear 44, the first reduction gear pair 45, the second reduction gear pair 46 and the output gear pair 41 are sequentially meshed. Specifically, a shaft rod 47 is arranged in the housing assembly 10, and the worm gear 43 and the transmission gear 44 are movably sleeved on the shaft rod 47 to rotatably arrange the worm gear 43 and the transmission gear 44 in the housing assembly 10.

[0034] In this embodiment, a second fixing piece 14 is fixedly connected inside the housing assembly 10 by screws. The first reduction gear pair 45 includes a first gear set 451 and a first gear shaft 452. The first gear set 451 is movably sleeved on the first gear shaft 452. Two ends of the first gear shaft 452 are respectively inserted into the housing assembly 10 and the second fixing piece 14. The second reduction gear pair 46 includes a second gear set 461 and a second gear shaft 462. The second gear set 461 is movably sleeved on the second gear shaft 462. Two ends of the second gear shaft 462 are respectively inserted into the housing assembly 10 and the second fixing piece 14. The output gear pair 41 includes a third gear set 411 and a third gear shaft 412. The third gear set 411 is movably sleeved on the third gear shaft 412. Two ends of the third gear shaft 412 are both inserted into the housing assembly 10, and the first fixing piece 512 is movably sleeved on the third gear shaft 412.

[0035] Specifically, the first gear set 451, the second gear set 461, and the third gear set 411 each include a large gear and a small gear that are fixedly connected and arranged coaxially. The large gear of the first gear set 451 meshes with the transmission gear 44. The small gear of the first gear set 451 meshes with the large gear of the second gear set 461. The small gear of the second gear set 461 meshes with the large gear of the third gear set 411. The small gear of the third gear set 411 meshes with the clutch gear 52. The aforementioned chassis 511 is movably sleeved on the small gear of the third gear set 411, and the two clutch gears 52 are respectively arranged on both sides of the small gear of the third gear set 411.

[0036] In this embodiment, the housing assembly 10 includes an outer housing 11, a gearbox housing 12, and a motor bottom cover 13 that are sequentially connected by screws. The output gear pair 41 and the clutch structure 50 are arranged between the gearbox body and the outer housing 11, and the main motor 30 is arranged between the motor bottom cover 13 and the gearbox housing 12. Specifically, one ends of the first gear shaft 452, the second gear shaft 462, and the third gear shaft 412 are all inserted into the gearbox housing 12, and the other end of the third gear shaft 412 is inserted into the outer housing 11; both ends of the shaft rod 47 are inserted into the gearbox body and the motor bottom cover 13 respectively; the two axial ends of the main gear 20 are rotatably inserted into the gearbox body and the outer housing 11 respectively. With this structure, the assembly of the clutch structure 50 and the gear reduction assembly 40 can be facilitated.

[0037] The above has described the embodiments of the present invention in detail with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Within the knowledge scope of those of ordinary skill in the art in the said technical field, various changes can be made without departing from the gist of the present invention.

Claims

1. A motor module with internal clutch, characterized in that: include: Shell assembly; A main gear, rotatably disposed on the housing assembly; A main motor, fixedly arranged on the housing assembly; A gear reduction assembly is disposed in the housing assembly and connected to the rotating shaft of the main motor, wherein the gear reduction assembly includes an output gear pair; The clutch structure comprises a bracket and a clutch gear, wherein the bracket is movably arranged in the housing assembly and can rotate around the axis of the output gear pair, and the clutch gear is rotatably arranged on the bracket and meshes with the output gear pair; When the output gear pair rotates, the clutch gear can be driven to rotate around the axis of the output gear pair until it meshes with the main gear.

2. A motor module with internal clutch according to claim 1, characterized in that: The bracket includes a chassis, a first fixing plate and a support shaft. The chassis and the first fixing plate are movably sleeved on the output gear pair. The support shaft is arranged between the chassis and the first fixing plate. The clutch gear is sleeved on the support shaft and can rotate around the axis of the support shaft.

3. A motor module with internal clutch according to claim 1 or 2, characterized in that: The clutch gears are provided in two numbers and are respectively arranged on both sides of the output gear pair.

4. A motor module with internal clutch according to claim 1 or 2, characterized in that: The gear reduction assembly also includes a worm, a worm wheel, a transmission gear, a first reduction gear pair and a second reduction gear pair. The worm is fixedly connected to the rotating shaft of the main motor and meshes with the worm wheel. The worm wheel and the transmission gear are fixedly connected, and the worm wheel and the transmission gear are rotatably arranged in the housing assembly. The first reduction gear pair and the second reduction gear pair are arranged in the housing assembly, and the transmission gear, the first reduction gear pair, the second reduction gear pair and the output gear pair are meshed in sequence.

5. The motor module with internal clutch according to claim 4, characterized in that: A second fixing plate is fixedly connected inside the housing assembly, the first reduction gear pair includes a first gear group and a first gear shaft, the first gear group is sleeved on the first gear shaft, and the two ends of the first gear shaft are respectively inserted into the housing assembly and the second fixing plate; the second reduction gear pair includes a second gear group and a second gear shaft, the second gear group is sleeved on the second gear shaft, and the two ends of the second gear shaft are respectively inserted into the housing assembly and the second fixing plate.

6. The motor module with internal clutch according to claim 2, characterized in that: The output gear pair includes a third gear set and a third gear shaft. The third gear set is movably sleeved on the third gear shaft. Both ends of the third gear shaft are respectively inserted into the housing assembly. The first fixing plate is movably sleeved on the third gear shaft.

7. The motor module with internal clutch according to claim 1, characterized in that: The housing assembly comprises an outer housing, a gearbox housing and a motor bottom cover which are connected in sequence; the output gear pair and the clutch structure are arranged between the gearbox housing and the outer housing; and the main motor is arranged between the motor bottom cover and the gearbox housing.

8. The motor module with internal clutch according to claim 1, characterized in that: A magnet sheet is coaxially arranged on the main gear, and a plurality of magnetic induction components are arranged at intervals around the magnet sheet on the housing assembly.

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