Driving system and intelligent door

Abstract

The utility model provides a driving system and an intelligent door. The driving system is applied to a smart home product and comprises a rotating shaft, a first blade, a transmission part, a motor and a detection module. The rotating shaft comprises at least one rotating part, and the rotating part is of a hollow structure and is configured to rotate around the center line. The first blade is fixedly arranged on the rotating part and rotates along with the rotating part. The transmission part is arranged in the rotating part and is in transmission connection with the rotating part. At least part of the motor is located in the rotating part, an output shaft of the motor is collinear with the center line of the rotating part, and the motor is in transmission connection with the transmission part and drives the rotating part to rotate around the center line through the transmission part. The detection module is configured to obtain one or more of the rotating direction, the rotating angle and the rotating speed of the rotating part or the current flowing into the motor. According to the embodiment of the utility model, the structure is simple, the miniaturization of intelligent household products is facilitated, the production and assembly cost of the intelligent household products is reduced, and the utilization rate of electric energy is improved.

Description

Technical Field

[0001] This utility model relates to the field of smart home product technology, and in particular to a drive system and a smart door. Background Technology

[0002] With technological advancements, smart home applications are increasingly prevalent, and smart home products are offering a wider range of functions. These products include smart doors, smart locks, smart windows, and smart refrigerators. Compared to traditional home products and appliances, smart home products offer greater precision and control, enabling a wider range of functionalities. For example, they can utilize electric motors to provide assistance or allow for contactless operation.

[0003] Taking a rotating smart door as an example (this also applies to windows, wardrobes, refrigerators, etc.), the conventional design for integrating a motor into a smart door involves placing the door opener / closer above the door body. The opener / closer includes a motor, a connecting rod, and a slide rail. The connecting rod, driven by the motor, slides along the slide rail to rotate the door. Existing door openers / closers are complex in structure, large in size, and expensive, hindering miniaturization. Furthermore, the installation process is complex, requiring pre-reserved installation space on the door body and frame, thus encroaching on the door's space. Simultaneously, the door opener / closer needs to overcome sliding friction during operation, resulting in low energy efficiency.

[0004] The content of the background section is merely technology known to the inventor and does not necessarily represent prior art in this field. Utility Model Content

[0005] To address one or more deficiencies in the prior art, this utility model provides a driving system for use in smart home products, the driving system comprising:

[0006] A rotating shaft, the rotating shaft including at least one rotating part; the rotating part is a hollow structure and is configured to rotate about a center line;

[0007] The first blade is fixedly mounted on the rotating part and rotates with the rotating part.

[0008] A transmission component is disposed within the rotating part and is connected to the rotating part in a transmission manner;

[0009] An electric motor, at least a portion of which is located inside the rotating part, and the output shaft of the electric motor is collinear with the centerline of the rotating part, the electric motor being connected to the transmission component and driving the rotating part to rotate about the centerline through the transmission component;

[0010] The detection module is configured to acquire one or more of the following: the rotation direction, rotation angle, rotation speed of the rotating part, or the current flowing through the motor.

[0011] According to one aspect of the present invention, the rotating shaft further includes at least one fixed portion; the at least one fixed portion and the at least one rotating portion are arranged alternately along the center line, and the rotating portion is configured to be rotatable relative to the fixed portion.

[0012] According to one aspect of the present invention, the rotating part includes a side wall, and the transmission member and the motor are both disposed within a cavity surrounded by the side wall.

[0013] According to one aspect of the present invention, the rotating part includes a toothed structure disposed on the inner circumferential side of the rotating part; the transmission member includes:

[0014] The first gear is located inside the rotating part and is fixedly connected to the output shaft of the motor, and rotates with the output shaft of the motor;

[0015] The second gear meshes with the first gear and the toothed structure, and the rotation axis of the second gear is parallel to the output shaft of the motor.

[0016] According to one aspect of the present invention, the rotating part further includes:

[0017] The first mounting part is on which the second gear is rotatably mounted.

[0018] According to one aspect of the present invention, the number of teeth of the second gear is greater than the number of teeth of the first gear.

[0019] According to one aspect of the present invention, the fixing part includes a boss, the rotating part includes a second mounting part, the second mounting part being disposed circumferentially around the boss and rotatable relative to the boss; the driving system further includes:

[0020] A pressure plate is fixedly disposed on the top of the boss and configured to limit the second mounting portion in the circumferential direction of the boss.

[0021] According to one aspect of the present invention, the drive system further includes a second blade, which is fixedly connected to the fixing part.

[0022] According to one aspect of the present invention, the drive system further includes:

[0023] A control module is connected to the motor and the detection module by signal, and is configured to output control signals to the motor and receive feedback signals from the detection module.

[0024] According to one aspect of the present invention, the detection module includes:

[0025] A sensor is disposed on the motor and configured to acquire changes in the magnetic field of the permanent magnet in the motor.

[0026] According to one aspect of the present invention, the sensor includes a first receiving end and a second receiving end, the first receiving end and the second receiving end being located at different positions within the magnetic field range of the permanent magnet; the sensor is configured to determine the rotation direction of the motor based on the phase difference between the first receiving end and the second receiving end.

[0027] According to one aspect of the present invention, the detection module further includes:

[0028] A current detection unit is configured to acquire the current value supplied to the motor.

[0029] According to one aspect of this utility model, this utility model also relates to an intelligent door, the intelligent door comprising:

[0030] At least one drive system as described above;

[0031] The door body is fixedly connected to the first blade in the drive system.

[0032] According to one aspect of the present invention, the smart door includes a plurality of said drive systems, and the rotation axes of the plurality of said drive systems are collinear.

[0033] Compared with existing technologies, this utility model provides a drive system in which the rotating part is a hollow structure, at least a portion of the motor is disposed inside the rotating part, and the output shaft of the motor is collinear with the center of the rotating part, driving the rotating part to rotate around the center line through a transmission component. The drive system in this embodiment can be used to drive the rotation and opening / closing of doors and windows. It has a simple structure, which is beneficial for the miniaturization of smart home products, reducing the production and assembly costs of smart home products, and can also reduce frictional resistance and improve energy efficiency. Furthermore, the drive system in this embodiment also obtains one or more of the following through a detection module: the rotation direction, rotation angle, rotation speed, or the current flowing through the motor, which is beneficial for intelligent control of the drive system.

[0034] This utility model also relates to an intelligent door, which uses the aforementioned drive system to drive the door body to rotate. Attached Figure Description

[0035] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0036] Figure 1 A schematic diagram of the drive system according to some embodiments of the present invention is shown;

[0037] Figure 2 A schematic cross-sectional view of the drive system perpendicular to the axial direction is shown in some embodiments of the present invention;

[0038] Figure 3 A schematic cross-sectional view of the drive system parallel to the axial direction is shown in some embodiments of the present invention;

[0039] Figure 4 A control block diagram of the drive system according to some embodiments of the present invention is shown;

[0040] Figure 5 The diagram shows waveforms of signals received by the sensor according to some embodiments of the present invention;

[0041] Figure 6 A schematic diagram of a first receiving end and a second receiving end according to some embodiments of the present invention is shown;

[0042] Figure 7 The waveforms of the speed pulse signal and direction pulse signal output by the sensor according to some embodiments of the present invention are shown;

[0043] Figure 8 A schematic diagram of the structure of a smart door according to some embodiments of the present invention is shown. Detailed Implementation

[0044] In the following description, only certain exemplary embodiments are briefly described. As those skilled in the art will recognize, the described embodiments can be modified in various ways without departing from the spirit or scope of this invention. Therefore, the drawings and description are considered exemplary in nature and not restrictive.

[0045] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description. They do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first" or "second" may explicitly or implicitly include one or more of the stated features. In the description of this utility model, "multiple" means two or more, unless otherwise explicitly specified.

[0046] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection, an electrical connection, or a connection that allows for mutual communication; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0047] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0048] The following disclosure provides many different embodiments or examples for implementing various structures of this invention. To simplify the disclosure, specific examples of components and arrangements are described below. These are merely examples and are not intended to limit the scope of the invention. Furthermore, reference numerals and / or letters may be repeated in different examples; such repetition is for simplification and clarity and does not in itself indicate a relationship between the various embodiments and / or arrangements discussed. In addition, examples of various specific processes and materials are provided in this invention, but those skilled in the art will recognize the application of other processes and / or the use of other materials.

[0049] The embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.

[0050] Figures 1-3 The diagram illustrates the structure of a drive system 100 according to some embodiments of the present invention. In this embodiment, the drive system 100 is applied in a smart home product to drive the rotation of components within the smart home product. Specifically, for example, the drive system 100 is applied to a smart door to drive the door body to rotate, providing assistance to the user or enabling contactless control and automatic opening and closing of the door. In some embodiments, the drive system 100 can also be used to drive the rotation of windows, cabinet doors, etc., for example, the drive system 100 is applied to smart windows, smart cabinets, or refrigerators. The following description, in conjunction with... Figures 1-3 The structure of the drive system 100 is described.

[0051] The drive system 100 in this embodiment includes a rotating shaft 110, a first blade 120, a transmission component 130, a motor 140, and a control module (in... Figure 4 The control module 170 is shown in the figure.

[0052] The rotating shaft 110 includes at least one rotating portion 111. The rotating portion 111 is a hollow structure and can rotate about a center line. The center line can be a line connecting the centers of symmetry of the rotating portion 111; for example, if the rotating portion 111 is generally cylindrical, the center line can be the axis of the cylinder. In some embodiments, the center line may not have a corresponding solid structure, where the rotating portion 111 is hollow and the center line is a virtual line.

[0053] The first blade 120 is fixedly mounted on the rotating part 111. When the rotating part 111 rotates around its center line, the first blade 120 rotates synchronously with the rotating part 111. For example, the first blade 120 and the rotating part 111 can be integrally formed or welded together. In a preferred embodiment of this invention, the first blade 120 can be used to connect with other structures of a smart home product. When the rotating part 111 rotates around its center line, the first blade 120 drives the connected structure to rotate. Specifically, the first blade 120 can be connected to other structures by means of bolts, rivets, welding, or adhesive.

[0054] The transmission member 130 is disposed inside the rotating part 111 and is drively connected to the rotating part 111. At least a portion of the motor 140 is disposed inside the rotating part 111. Furthermore, as... Figure 2 As shown, the output shaft 141 of the motor 140 is collinear with the center line of the rotating part 111. The motor 140 and the transmission member 130 are connected in transmission, and the rotating part 111 is driven to rotate around the center line through the transmission member 130.

[0055] In some embodiments, a portion of the structure of the motor 140 may be disposed outside the rotating part 111, which is beneficial to reduce the size of the rotating part 111, reduce the processing difficulty of the rotating part 111, and facilitate the assembly of the drive system 100 and the maintenance and replacement of the drive system 100.

[0056] The detection module can acquire one or more of the following: rotation direction, transmission angle, rotation speed, or current supplied to the motor 140 of the rotating part 111. Specifically, the detection module may include one or more sensors, and acquire one or more of the following through the signals fed back by the sensors: rotation direction, transmission angle, rotation speed, or current supplied to the motor 140, thereby acquiring the real-time operating status of the drive system 100. Furthermore, the drive system 100 can be controlled based on the information acquired by the detection module, as will be described in detail in subsequent embodiments.

[0057] In this embodiment, at least a portion of the motor 140 and the transmission component 130 are disposed inside the rotating part 111, which improves the integration of the drive system 100. Furthermore, the drive system 100 in this embodiment has a simple structure, which helps to reduce the space occupied and lowers the processing and assembly costs. Driving smart home products through rotation helps to reduce frictional resistance and improve energy efficiency. Moreover, this embodiment can obtain the operating status of the drive system 100 through a detection module, which is beneficial for intelligent control of the drive system 100.

[0058] According to a preferred embodiment of the present invention, the rotating shaft 110 further includes at least one fixing part 112. The at least one fixing part 112 and at least one rotating part 111 are staggered along the center line, for example... Figure 1 As shown, the rotating shaft 110 includes two rotating parts 111 and one fixed part 112, arranged from top to bottom along the centerline direction as rotating part 111, fixed part 112, and another rotating part 111. In some other embodiments, the rotating shaft 110 may also include one rotating part 111 and two fixed parts 112, arranged from top to bottom along the centerline direction as fixed part 112, rotating part 111, and another fixed part 112.

[0059] In some embodiments, for applications requiring high torque drive, multiple rotating parts 111 can be provided in the rotating shaft 110, each rotating part 111 corresponding to a motor 140, and the output torque of the drive system 100 can be increased by using multiple motors 140 for drive.

[0060] In this embodiment, the rotating part 111 can rotate relative to the fixed part 112. Furthermore, a bearing, roller, ball, or the like can be provided at the joint position of the rotating part 111 and the fixed part 112 to further reduce the frictional resistance when the rotating part 111 and the fixed part 112 rotate relative to each other.

[0061] In this design, the rotating part 111 and the fixed part 112 rotate relative to each other, and their absolute positions are not limited. Taking a smart door as an example, in some embodiments, the fixed part 112 is fixedly mounted on the door frame and the door body of the smart door. The motor 140 drives the rotating part 111 to rotate around the centerline, which in turn drives the door body to rotate via the first blade 120. Alternatively, in other embodiments, the rotating part 111 is mounted on the door frame and the fixed part 112 is mounted on the door body of the smart door. The rotating part 111 and the fixed part 112 move relative to each other to rotate the door body.

[0062] Furthermore, such as Figure 1 As shown, according to a preferred embodiment of the present invention, the drive system 100 further includes a second blade 160. The second blade 160 is fixedly connected to the fixing part 112. In some embodiments, the second blade 160 may be fixedly connected to a part of the structure in a smart home product, such as the door frame of a smart door, the inner side wall of a refrigerator, etc.

[0063] like Figure 2 As shown, in some embodiments, the output shaft 141 of the motor 140 extends into the hollow interior of the rotating portion 111, and the transmission member 130 is also disposed inside the rotating portion 111. The inner side of the hollow structure of the rotating portion 111 can be provided with a structure that cooperates with the transmission member 130, which helps to simplify the transmission structure, reduce the size of the drive system 100, and reduce mechanical failures.

[0064] like Figure 2As shown, in a preferred embodiment of this utility model, the rotating part 111 includes a side wall 113, and the transmission member 130 and the motor 140 are both disposed within the cavity surrounded by the side wall 113. Further, the rotating part 111 or the motor 140 includes a cover plate located at the end of the side wall 113, used to close the cavity of the rotating part 111 and reduce the influence of the external environment on the drive system 100. The cover plate can be fixedly connected to the side wall 113, for example... Figure 3 As shown, the cover plate is fixed to the side wall by bolts.

[0065] Specifically, such as Figure 2 As shown, the rotating part 111 includes a toothed structure 114, which is disposed on the inner circumferential side of the rotating part 111, such as the inner side surface of the sidewall 113. In some embodiments, the toothed structure 114 and the sidewall 113 can be integrally formed, for example, by casting from metal material or by cutting from the same metal blank.

[0066] The transmission component 130 includes a first gear 131 and a second gear 132. The first gear 131 is located inside the rotating part 111 and is fixedly connected to the output shaft 141 of the motor 140. As the output shaft 141 of the motor 140 rotates, for example, the first gear 131 is welded to the output shaft 141, or the first gear 131 is snapped or glued to the output shaft 141 at the center position.

[0067] The second gear 132 meshes with the first gear 131 and the tooth structure 114, and rotates along the axis of the second gear 132 (e.g., Figure 3 The first mounting portion 115 shown is parallel to the output shaft 141 of the motor 140. When the output shaft 141 of the motor 140 rotates, it drives the first gear 131 to rotate. The first gear 131 meshes with the second gear 132, driving the second gear 132 to rotate. The second gear 132 meshes with the toothed structure 114, driving the rotating portion 111 to rotate.

[0068] like Figure 3 As shown, the rotating part 111 also includes a first mounting part 115. A second gear 132 is rotatably mounted on the first mounting part 115 and can rotate around it. In this embodiment, the centerline of the rotating part 111, the output shaft 141 of the motor 140, and the rotation axis of the second gear 132 (the axis of the first mounting part 115) are parallel or collinear, which can reduce lateral compression between the drive systems 100, improve structural stability, and reduce design and manufacturing difficulties.

[0069] Furthermore, according to a preferred embodiment of the present invention, the number of teeth of the second gear 132 is greater than the number of teeth of the first gear 131. The second gear 132 can be used to reduce the rotational speed of the output shaft 141 of the motor 140, thereby increasing the torque and reducing friction and vibration within the drive system 100. Simultaneously, in this embodiment, a single second gear 132 can achieve speed reduction transmission, resulting in a simple and compact structure that saves space and reduces the size of the rotating part 111.

[0070] In embodiments of this invention, the rotating part 111 can rotate relative to the fixed part 112. Specifically, as shown... Figure 3 As shown, the fixing part 112 includes a boss 116 with an arc-shaped circumferential sidewall; for example, the boss 116 is generally cylindrical. The rotating part 111 includes a second mounting part 117, which is disposed around the boss 116 and rotates around the boss 116. Furthermore, a gap exists between the boss 116 and the second mounting part 117, which helps to reduce frictional resistance and increase the tolerance of machining errors. Preferably, a lubricant or rolling friction element can be added between the boss 116 and the second mounting part 117 to further reduce frictional resistance.

[0071] The drive system 100 also includes a pressure plate 150, which is fixedly disposed on the top of the boss 116 and defines the second mounting portion 117 circumferentially within the boss 116. Specifically, the height of the boss 116 is slightly greater than the thickness of the second mounting portion 117. The pressure plate 150 does not contact the second mounting portion 117, and the pressure plate 150 does not restrict the second mounting portion 117 from rotating relative to the boss 116, but rather restricts the second mounting portion 117 and the boss 116 to axially disengage. In some embodiments, the pressure plate 150 can be appropriately enlarged to improve the structural stability of the drive system 100.

[0072] Furthermore, according to a preferred embodiment of the present invention, the mating surfaces of the pressure plate 150 and the boss 116 are set as rough surfaces, for example, by grinding to form a frosted surface. The rough surface can improve the bonding strength between the pressure plate 150 and the boss 116, reduce the risk of damage to the pressure plate 150 due to torque (torque generated by the gravity of a portion of the smart home product connected to the first blade 120), and improve the structural stability and service life of the drive system 100.

[0073] like Figure 4As shown, in a preferred embodiment of this utility model, the drive system 100 further includes a control module 180. The control module 180 is signal-connected to the motor 140 and the detection module 170, and can receive feedback signals from the detection module 170 and output control signals to the motor 140. The control signals output by the control module 180 to the motor 140 may include controlling the rotational speed, torque, and rotation direction of the motor 140.

[0074] Preferably, the control module 180 can output a control signal to the motor 140 based on the feedback signal from the detection module 170, thereby controlling the output torque of the motor 140. For example, the detection module 170 can detect the rotational speed of the rotating part 111 (equivalent to the rotational speed of the first blade 120), and the control module 180 can control the output torque of the motor 140 based on the rotational speed of the rotating part 111, thereby changing the rotational speed of the rotating part 111. Specific details will be explained in subsequent embodiments.

[0075] Furthermore, the detection module 170 includes a sensor 171, which is mounted on the motor 140 and can acquire changes in the magnetic field of the permanent magnet in the motor 140. For example, the sensor 171 can be mounted on the stator or rotor of the motor 140, or on the output shaft 141 of the motor 140. During rotor rotation, the magnetic field of the permanent magnet in the motor 140 changes with the rotor's rotation angle. When the rotor rotates at a constant speed, the magnetic field of the permanent magnet changes periodically.

[0076] In some embodiments, sensor 171 includes a Hall sensor, whose voltage changes when the magnetic field changes. When the rotor of motor 140 rotates at a constant speed, the voltage change waveform of the Hall sensor is as follows: Figure 5 As shown. The Hall sensor can detect the rotation speed and direction of the motor 140, and combined with the timer, the rotation angle of the motor 140 can be determined.

[0077] like Figure 6 As shown, according to some embodiments of the present invention, the sensor 171 includes a first receiving end 172 and a second receiving end 173.

[0078] The first receiving end 172 and the second receiving end 173 are located at different positions within the magnetic field range of the permanent magnet in the motor 140. When the motor 140 rotates, the electrical signals output by the first receiving end 172 and the second receiving end 173 change asynchronously. The sensor 171 can determine the rotation direction of the motor 140 based on the phase difference between the electrical signals output by the first receiving end 172 and the second receiving end 172.

[0079] Specifically, for example Figure 7As shown in the diagram, the upper part represents the speed pulse signal. The detection module 170 detects the rotation speed of the motor 140 based on the signal output by the first receiver 172. For example, the rotation angle of the motor 140 can be determined based on the number of pulses per unit time, and the rotation angle of the motor 140 can be calculated by combining the pulse duration. Furthermore, based on the reduction ratio of the transmission component 130, the rotation speed and rotation angle of the first blade 120 can be determined, which is beneficial for achieving precise control of smart home products.

[0080] Simultaneously, the detection module 170 can detect the rotation direction of the motor 140 based on the signals output from the first receiving end 172 and the second receiving end 173. For example, the internal processing unit of the detection module 170 determines the rotation direction of the motor 140 based on the period deviation of the pulse signals from the first receiving end 172 and the second receiving end 173. Specifically, Figure 7 The lower part of the figure shows the pulse signal for the rotation direction of the motor 140. The rotation direction of the motor 140 can be determined according to the time sequence of the rising and falling edges of the pulse signals of the first receiving end 172 and the second receiving end 173. For example, the motor 140 outputs a high level when rotating clockwise and a low level when rotating counterclockwise.

[0081] Furthermore, in this embodiment, the Hall sensor outputs a signal based on changes in the magnetic field, while the changes in the magnetic field of the permanent magnet in the motor 140 are position-dependent and not determined by the coil of the motor 140. Therefore, even when the motor 140 is not energized, if the rotating part 111 rotates, the Hall sensor can still output signals indicating the rotation speed and direction.

[0082] For example, the drive system 100 should be included in the smart door. When the user manually rotates the door, the rotating part 111 rotates accordingly, and the Hall sensor outputs a signal based on the rotation speed and direction. By recording the output signal of the Hall sensor, the opening and closing information of the smart door can be recorded, enabling real-time monitoring of the smart door.

[0083] like Figure 4 As shown, in some embodiments of this utility model, the detection module 170 further includes a current detection unit 174, which can be used to detect the magnitude of the current flowing through the motor 140, thereby obtaining the output torque of the motor 140. For example, the current detection unit 174 can detect the voltage and current across the coil of the motor 140. Furthermore, the direction of the torque of the motor 140 can also be determined by the voltage and current across the coil of the motor 140.

[0084] According to a preferred embodiment of this utility model, the sensor 171 and the current detection unit 174 in the detection module 170 can cooperate with each other. For example, the sensor 171 includes a Hall sensor. The signal output by the Hall sensor is not directly related to the current flowing into the motor 140. Combined with the current detection unit 174, the drive system 100 can be locked, which is beneficial for protecting the drive system 100 and smart home products, and preventing irreversible damage to the motor 140 caused by lock-up.

[0085] Specifically, for example, if the current detection unit 174 detects that the current flowing into the motor 140 exceeds the threshold, and the signal output by the sensor 171 does not change, this indicates that the motor 140 is energized but not rotating, which can be determined as a stall in the drive system 100. The control module 180 can be used to cut off the power to the motor 140 to prevent damage. When the drive system 100 is used in a smart door, it can prevent fingers from being pinched when the automatically controlled smart door closes.

[0086] like Figure 8 As shown, this utility model also relates to an intelligent door 200. The intelligent door 200 includes at least one drive system 100 as described in the foregoing embodiments and a door body 210. The door body 210 is fixedly connected to the first blade 120 in the drive system 100. When the motor 140 drives the rotating part 111 to rotate, the first blade 120 drives the door body 210 to rotate, thereby realizing the automatic opening and closing of the intelligent door 200.

[0087] According to a preferred embodiment of the present invention, the smart door 200 includes a plurality of drive systems 100, and the rotation axes 110 of the plurality of drive systems 100 are collinear, for example... Figure 8 The smart door 200 shown includes three drive systems 100. The multiple drive systems 100 can be controlled synchronously to increase the torque that drives the door body 210 to rotate and to distribute the gravity of the door body 210 to the multiple drive systems 100, thereby improving the structural stability of the smart door 200.

[0088] Finally, it should be noted that the above descriptions are merely embodiments of this utility model and are not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A drive system characterized by, The driving system is applied to a smart home product, and the driving system comprises: A rotating shaft, the rotating shaft comprising at least one rotating part; the rotating part is a hollow structure and is configured to rotate around a center line; A first blade, the first blade being fixedly arranged on the rotating part and rotating with the rotating part; A transmission member, the transmission member being arranged in the rotating part and being in transmission connection with the rotating part; An electric motor, at least a part of the electric motor being located inside the rotating part, and an output shaft of the electric motor being collinear with the center line of the rotating part, the electric motor being in transmission connection with the transmission member and driving the rotating part to rotate around the center line through the transmission member; and A detection module, the detection module being configured to acquire one or more of a rotating direction, a rotating angle, a rotating speed of the rotating part, or a current flowing into the electric motor.

2. The drive system of claim 1, wherein, The rotating shaft further comprises at least one fixed part; the at least one fixed part and the at least one rotating part are arranged staggeredly along the center line, and the rotating part is configured to be rotatable relative to the fixed part.

3. The drive system of claim 2, wherein, The rotating part comprises a side wall, and the transmission member and the electric motor are arranged in a cavity surrounded by the side wall.

4. The drive system of claim 2, wherein, The rotating part comprises a toothed structure arranged circumferentially on an inner side of the rotating part; the transmission member comprises: A first gear, the first gear being located inside the rotating part and being fixedly connected with the output shaft of the electric motor and rotating with the output shaft of the electric motor; A second gear, the second gear being in meshing connection with the first gear and the toothed structure, and a rotating shaft of the second gear being parallel to the output shaft of the electric motor.

5. The drive system of claim 4, wherein, The rotating part further comprises: A first mounting part, the second gear being rotatably arranged on the first mounting part.

6. The drive system of claim 4, wherein, The second gear has a larger number of teeth than the first gear.

7. The drive system of claim 2, wherein, The fixed part comprises a boss, the rotating part comprises a second mounting part, the second mounting part being arranged circumferentially around the boss and being rotatable relative to the boss; the driving system further comprises: A pressing plate, the pressing plate being fixedly arranged on a top of the boss and being configured to limit the second mounting part in the circumferential direction of the boss.

8. The drive system of any one of claims 2-7, wherein, The driving system further comprises a second blade, the second blade being fixedly connected with the fixed part.

9. The drive system according to any one of claims 1-7, wherein, The driving system further comprises: A control module, the control module being in signal connection with the electric motor and the detection module and being configured to output a control signal to the electric motor and receive a feedback signal sent by the detection module.

10. The drive system of claim 9, wherein, The detection module comprises: A sensor, the sensor being arranged on the electric motor and being configured to acquire a magnetic field change of a permanent magnet in the electric motor.

11. The drive system of claim 10, wherein, The sensor comprises a first receiving end and a second receiving end, the first receiving end and the second receiving end being located at different positions within a magnetic field range of the permanent magnet; the sensor is configured to determine a rotating direction of the electric motor according to a phase difference between the first receiving end and the second receiving end.

12. The drive system of claim 10, wherein, The detection module further comprises: A current detection unit, the current detection unit being configured to acquire a current value flowing into the electric motor.

13. A smart door, characterized by The smart door comprises: At least one drive system as claimed in any one of claims 1 to 12; A door body, the door body being fixedly connected with the first blade in the drive system.

14. The smart door according to claim 13, wherein, The intelligent door comprises a plurality of the drive systems, and the rotation axes in the plurality of the drive systems are collinear. The intelligent door comprises a plurality of the drive systems, and the rotation axes in the plurality of the drive systems are collinear.

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