Ultrasonic generation assembly, ultrasonic device and safety control method

Abstract

The invention provides an ultrasonic generation assembly, an ultrasonic device and a safety control method, the ultrasonic device comprises the ultrasonic generation assembly, and the safety control method is applied to the ultrasonic generation assembly. The ultrasonic generation assembly comprises a shell, a transducer, a motor, a transmission assembly, a radial magnetizing magnet and a position sensor. The transmission assembly is in driving connection with the motor and the transducer, and the radial magnetizing magnet is installed on the transmission assembly and synchronously rotates along with the transmission assembly. The position sensor and the radial magnetizing magnet are oppositely arranged, and the position sensor is used for sensing magnetic field changes generated in the rotating process of the radial magnetizing magnet and can generate continuous displacement feedback signals according to the magnetic field changes so as to be used for judging whether the real-time position of the transducer meets a preset movement track or not. Therefore, high-frequency, continuous and non-contact real-time monitoring of the movement position of the transducer is realized, the real-time performance of position feedback is improved, and the possibility of repeated dotting or missing dotting of the transducer is reduced.

Description

Technical Field

[0001] This invention relates to ultrasonic technology, and more particularly to an ultrasonic generating component, an ultrasonic device, and a safety control method. Background Technology

[0002] The ultrasound generator is the component in an ultrasound device that outputs ultrasound waves. It converts electrical energy into high-frequency mechanical vibration energy (ultrasound waves) via a transducer and emits it into the working medium. The transducer moves along a preset trajectory, intermittently emitting ultrasound energy to achieve targeted aesthetic treatment. Ensuring the transducer moves strictly along the predetermined trajectory is crucial for guaranteeing treatment safety and uniformity of results. Jamming or abrupt changes in the transmission components can cause incorrect energy output positioning, leading to issues such as repeated or missed treatments. Repeated treatments expose the skin to excessive ultrasound energy in a short period, posing a risk of burns. Missed treatments affect the uniformity of energy coverage in the treatment area, impacting the final aesthetic outcome. Furthermore, because the momentary abrupt changes in the transmission components are difficult for the operator to perceive visually, such positional errors can accumulate and recur.

[0003] Related technologies only set detection points at the start and end of the motion trajectory to confirm the position, or completely omit the position detection step during the motion process. This discrete or missing detection method cannot monitor in time whether the actual motion trajectory of the transducer deviates from the preset path. The reliability of monitoring the motion position of the transducer is not high, and it cannot provide timely warning or intervention when transmission failure occurs, affecting the user's use. Summary of the Invention

[0004] This invention provides an ultrasonic generating component, an ultrasonic device, and a safety control method to solve the technical problem of how to monitor the movement position of the transducer in an ultrasonic beauty instrument in real time and continuously, so as to reduce the possibility of incorrect energy output position (such as repeated or missed dots) due to jamming or jumping of transmission components.

[0005] The technical solution of this invention is implemented as follows: This invention provides an ultrasonic generating assembly, comprising: a housing; a transducer disposed within the housing for outputting ultrasonic energy to the outside of the housing; a motor fixed to the housing; a transmission assembly connected to the motor and the transducer for driving at least the transducer to rotate about a first direction; a radially magnetized magnet mounted on the transmission assembly and rotating synchronously with the transmission assembly; and a position sensor electrically connected to a detection unit and disposed opposite to the radially magnetized magnet. The position sensor senses changes in the magnetic field generated by the radially magnetized magnet during rotation and generates a continuous displacement feedback signal based on these changes to determine whether the real-time position of the transducer conforms to a preset motion trajectory. The displacement feedback signal constitutes at least a portion of an enable signal allowing the transducer to output ultrasonic energy.

[0006] In some embodiments, the ultrasonic generating assembly further includes: a detection unit fixed to the housing and electrically connected to the position sensor; wherein the detection unit receives the displacement feedback signal, performs a judgment on whether the real-time position of the transducer conforms to a preset motion trajectory, and generates at least a portion of the enable signal when the judgment is correct.

[0007] In some embodiments, the transmission assembly includes: a driving gear fixedly connected to the output shaft of the motor; a driven gear meshing with the driving gear; and a power output assembly, one end of which is drivenly connected to the driven gear and the other end of which is drivenly connected to the transducer; wherein the radially magnetized magnet is disposed on the driving gear.

[0008] In some embodiments, the radially magnetized magnet is coaxially arranged with the drive gear, and / or the central axis of the radially magnetized magnet passes through the geometric center of the sensing area of ​​the position sensor.

[0009] In some embodiments, the drive gear has a slot located between the motor and the position sensor; wherein the radially magnetized magnet is engaged and fixed within the slot.

[0010] In some embodiments, both the driven gear and the driving gear are external gears, and the power output component drives the transducer to rotate around a first axis, which is the central axis of the driven gear.

[0011] In some embodiments, the power output assembly includes: a rotating shaft, one end of which is coaxially connected to the driven gear, and the other end of which is spaced apart from the transducer; a track disk through which the rotating shaft passes and is clearance-fitted with the rotating shaft, the track disk including a guide structure extending in a spiral trajectory around the rotating shaft; a slide rail, which is coaxially arranged with the rotating shaft and rotates differentially relative to the track disk; and a slider, on which the transducer is mounted, the slider rotating with the slide rail and sliding relative to the slide rail along the spiral trajectory of the guide structure, so that the transducer moves along the spiral trajectory in a first plane; wherein the central axis of the rotating shaft is the first axis, and the first plane is perpendicular to the first axis.

[0012] The ultrasonic generator assembly provided in this invention integrates a radially magnetized magnet onto a transmission assembly and, in conjunction with a high-response position sensor, ensures that the continuous displacement feedback signal generated by the position sensor itself constitutes at least a portion of the enabling signal that allows the transducer to output ultrasonic energy. This displacement feedback signal can be used directly or after processing to determine whether the real-time position of the transducer conforms to a preset motion trajectory, thereby achieving high-frequency, continuous, and non-contact real-time monitoring of the transducer's movement position. For example, if the transmission assembly jams due to increased resistance, the rotation of the radially magnetized magnet will slow down or stop, and the frequency of the displacement feedback signal output by the position sensor will decrease or disappear. Since the displacement feedback signal is a component of the enabling signal, its abnormality will directly lead to an incomplete or ineffective enabling signal, indicating that the transducer 2 may be stalled, and there is a possibility of repeated energy emission from the same position, thus reducing the possibility of skin energy overload due to repeated application. If the transmission component 4 slips, the radial magnetized magnet 5 will exhibit unexpected angular acceleration, and the displacement feedback signal will show a sudden change, also reflecting an abnormality in the enable signal. This indicates a possible positional jump in transducer 2 and triggers an early warning, improving the treatment effect caused by undetected missed treatment points. It also allows for timely repair of slippage in the transmission component 4, reducing the possibility of repeated missed treatment points caused by accumulated transmission errors in the transmission component 4. This solution provides comprehensive and continuous monitoring of the transducer's movement, improving the real-time performance of position feedback and the system's sensitivity to transmission faults, reducing the possibility of repeated or missed treatment points, and providing a more reliable guarantee for the accurate and safe output of ultrasonic energy.

[0013] This invention provides an ultrasonic device, which includes the ultrasonic generating component described in any of the above embodiments. The ultrasonic device further includes: a device body, in which the ultrasonic generating component is installed; a controller, in which the ultrasonic generating component is installed; and a switch, on the surface of the device body. The controller is electrically connected to the switch, the detection unit in the ultrasonic generating component, and the transducer, and is configured to: control the operating state of the ultrasonic generating component and the energy output of the transducer in response to the triggering of the switch and based on an enable signal or fault signal generated at least based on the displacement feedback signal.

[0014] The ultrasound device provided in this invention integrates an ultrasound generator with real-time motion monitoring capabilities with a controller that intelligently responds to monitoring feedback, thus constructing a closed-loop control system with active safety protection capabilities. This design reduces reliance on user expertise and simplifies operation. Simultaneously, the ultrasound device can intervene before potential skin safety risks (such as repeated application) actually occur, and by ensuring energy is output only at the correct locations, it guarantees the accuracy and uniformity of treatment effects, improving user experience and treatment outcomes.

[0015] This invention provides a safety control method applied to the ultrasonic generating component described in any of the above embodiments. The safety control method includes: step S100: starting the motor and driving the transducer to move along a preset motion trajectory via the transmission component; step S200: acquiring a displacement feedback signal reflecting the movement position of the transducer in real time via the position sensor; step S300: determining the real-time position of the transducer based on the displacement feedback signal; step S400: comparing the real-time position with a expected position on the preset motion trajectory; step S500: only when the real-time position matches the expected position, making the displacement feedback signal constitute at least a part of an enabling signal allowing the transducer to output ultrasonic energy.

[0016] In some embodiments, the safety control method further includes an anomaly monitoring step, which is located after the comparison operation in step S400 and before the execution of step S500. The anomaly monitoring step includes: if the comparison finds that the real-time position does not conform to the expected position, then further determining the anomaly type; if it is determined to be a position jamming anomaly, then executing a first safety strategy, the first safety strategy including generating a first fault signal for requesting the transducer to stop outputting ultrasonic energy; if it is determined to be a position jump anomaly, then executing a second safety strategy, the second safety strategy including generating a second fault signal for requesting the motor to stop and / or triggering a fault alarm.

[0017] In some embodiments, the condition for determining a position jamming anomaly is that the real-time position of the transducer remains unchanged for a duration longer than a preset time during multiple consecutive detection cycles.

[0018] In some embodiments, the condition for determining an abnormal position jump is that the displacement increment of the transducer in two adjacent detection cycles is greater than a preset threshold, wherein the preset threshold is a preset multiple of the theoretical maximum displacement increment calculated based on the current speed of the motor, the transmission ratio of the transmission component and the duration of the detection cycle.

[0019] In some embodiments, the safety control method further includes a speed warning step following step S200, the speed warning step including: calculating the real-time movement speed of the transducer based on continuous displacement feedback signals; if the real-time movement speed deviates from a preset speed range, adjusting the drive parameters of the motor, or issuing a speed abnormality warning.

[0020] In some embodiments, the safety control method further includes a status indication step: displaying the transducer's position information, motion status, or system fault information in real time via a display unit or indicator light.

[0021] The safety control method provided in this invention binds the energy output authority of the transducer to the accuracy of the transducer's motion trajectory. By making the displacement feedback signal constitute at least a part of the enabling signal that allows the transducer to output ultrasonic energy, real-time correlation between position verification and energy authorization is achieved. This safety control method, through continuous position verification and conditional authorization, can directly and effectively reduce the possibility of repeated energy reception (repeated energy tapping) at the same position due to unexpected jamming of the transmission system. It also reduces the possibility of complete energy loss (missed energy tapping) at a predetermined position due to transmission jumps. This provides proactive and real-time protection for the safety of ultrasonic cosmetic treatments, improving the level of protection for the user's skin. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the structure of the ultrasonic generator assembly provided in an embodiment of the present invention; Figure 2 This is a top view of the ultrasonic generating component provided in an embodiment of the present invention; Figure 3 yes Figure 2 A cross-sectional view along the AA direction; Figure 4 for Figure 1 The diagram shown is a structural schematic of the ultrasonic generator assembly after omitting the housing and some components. Figure 5 for Figure 3 Enlarged view of point B in the middle; Figure 6 This is an exploded view of the motor and transmission assembly provided in an embodiment of the present invention; Figure 7 This is an exploded view of the transmission assembly provided in an embodiment of the present invention; Figure 8 This is a schematic diagram of the ultrasonic device provided in an embodiment of the present invention; Figure 9 This is a flowchart illustrating the safety control method provided in an embodiment of the present invention.

[0023] Explanation of reference numerals in the attached figures: 10. Ultrasonic generating assembly; 1. Housing; 2. Transducer; 3. Motor; 31. Output shaft; 4. Transmission assembly; 41. Drive gear; 411. Slot; 42. Driven gear; 43. Power output assembly; 431. Rotating shaft; 432. Track disk; 4321. Guide structure; 433. Slide rail; 4331. Slide groove; 434. Sliding element; 4341. Body; 4342. Connector; 44. Differential gear set; 5. Radial magnet; 6. Detection unit; 7. Position sensor; 20. Equipment body; 30. Controller; 40. Switch. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings. The described embodiments should not be regarded as limitations on the present invention. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0025] This invention provides an ultrasound generating component 10, which is used in an ultrasound beauty device to generate and output ultrasound waves. This ultrasound generating component 10 is mainly used in devices that achieve beauty effects by applying focused ultrasound waves to the skin. However, it should be noted that the specific application scenarios of this invention do not limit the structural configuration of the ultrasound generating component 10.

[0026] like Figures 1 to 3 As shown, the ultrasonic generating assembly 10 provided in this embodiment of the invention includes a housing 1, a transducer 2, a motor 3, a transmission assembly 4, a radially magnetized magnet 5, and a position sensor 7. The housing 1 constitutes the main frame of the ultrasonic generating assembly 10, used to house and fix other components. The transducer 2 is disposed in the internal working cavity of the housing 1. The transducer 2 is used to convert the input electrical energy into high-frequency mechanical vibration, i.e., ultrasonic waves, and output the ultrasonic energy to the target area outside the housing 1.

[0027] Motor 3 is fixed to housing 1, providing rotational power for the entire motion system. Specifically, motor 3 can be mounted outside housing 1 via a mounting bracket. Transmission assembly 4 connects the output end of motor 3 to transducer 2. Transmission assembly 4 transmits and converts the rotational motion of motor 3 into power to drive transducer 2 to produce the desired motion. Specifically, transmission assembly 4 is configured to at least drive transducer 2 to rotate in a first direction. Transmission assembly 4 may include gear pairs, linkage mechanisms, or cam structures to achieve transmission. It can be understood that the first direction is the extension direction of a line. Figure 3 In the schematic diagram shown, Z represents the rotation axis of the transmission assembly 4. Therefore, the direction in which the rotation axis Z of the transmission assembly 4 extends is the first direction, which is also perpendicular to the axis of rotation. Figure 2 The direction of the paper's extension shown.

[0028] A radially magnetized magnet 5 is fixedly mounted on the transmission assembly 4. The radially magnetized magnet 5 is configured to rotate synchronously with a specific rotating component (e.g., the drive gear 41) in the transmission assembly 4. Specifically, the radially magnetized magnet 5 can be aligned with the central axis of the rotating component by means of interference fit, snap-fit, or bonding.

[0029] The position sensor 7 is positioned corresponding to the radially magnetized magnet 5, such that the sensing area of ​​the position sensor 7 maintains a small, constant gap with the rotating radially magnetized magnet 5. The position sensor 7 is used to sense the changes in the magnetic field generated by the radially magnetized magnet 5 during rotation; specifically, it senses the alternating polarity changes of the magnetic field.

[0030] The position sensor 7 can generate continuous displacement feedback signals based on changes in the magnetic field. Specifically, during operation, the motor 3 drives the transmission assembly 4, which in turn causes the transducer 2 to move along a preset trajectory. Simultaneously, the radially magnetized magnet 5 rotates synchronously with the transmission assembly 4. The position sensor 7 senses the changing magnetic field in real time and generates a series of continuous electrical signals corresponding to the rotation angle and speed of the radially magnetized magnet 5—that is, the displacement feedback signals.

[0031] The displacement feedback signal constitutes at least a portion of the enable signal for allowing transducer 2 to output ultrasonic energy. This displacement feedback signal is used to determine whether the real-time position of transducer 2 conforms to a preset motion trajectory. The enable signal may also include other signals reflecting the operating status or safety conditions of the ultrasonic generating components, such as velocity signals, acceleration signals derived from the displacement feedback signal, as well as transducer temperature signals, handle in-position signals, system self-test ready signals, and operating mode confirmation signals. These signals, together with the displacement feedback signal, constitute a complete enable condition. Transducer 2 is only allowed to output ultrasonic energy when all or a specified combination of conditions is met.

[0032] Specifically, as one possible implementation, the position sensor 7 can be directly fixed to the housing 1 and electrically connected to the controller 30 inside the ultrasonic device via a lead wire. The controller 30 receives the displacement feedback signal and determines whether the real-time position of the transducer 2 conforms to the preset motion trajectory based on the signal. When the real-time position conforms to the preset motion trajectory, the displacement feedback signal, as part of the enable signal, works in conjunction with other enable conditions (such as user trigger signals, system ready signals, etc.) to allow the transducer 2 to output ultrasonic energy; when the real-time position deviates, the abnormal characteristics of the displacement feedback signal will result in an incomplete enable signal, thereby preventing or interrupting energy output. This solution eliminates the need for a separate detection unit, resulting in a simpler structure.

[0033] In other embodiments, the detection unit 6 may also be set as the mounting carrier of the position sensor 7, and the position determination is performed by the detection unit 6, which will be described in detail in the preferred embodiments below.

[0034] This real-time, continuous position monitoring and verification mechanism enables the system to monitor the transmission status throughout the entire process. For example, if the transmission component 4 becomes stuck due to increased resistance, the rotation of the radial magnetized magnet 5 will slow down or stop, and the frequency of the displacement feedback signal output by the position sensor 7 will decrease or disappear. Since the displacement feedback signal is a component of the enable signal, its abnormality will directly lead to an incomplete or ineffective enable signal, indicating that the transducer 2 may be stalled and there is a possibility of repeated energy emission at the same position, thereby reducing the possibility of skin energy overload due to repeated application. If the transmission component 4 slips, the radial magnetized magnet 5 will exhibit unexpected angular acceleration, and the sudden change in the displacement feedback signal will also reflect an abnormality in the enable signal, indicating that there is a possibility of a position jump in the transducer 2 and triggering an early warning. This improves the problem of treatment effect being affected by missed application points not being detected in time, and can also promptly check the slippage of the transmission component 4, thereby reducing the possibility of repeated missed application points by the transducer 2 due to the cumulative transmission error of the transmission component 4.

[0035] The ultrasonic generating assembly 10 provided in this embodiment of the invention includes a housing 1, a transducer 2, a motor 3, a transmission assembly 4, a radially magnetized magnet 5, and a position sensor 7. The transducer 2 is disposed inside the housing 1 and is used to output ultrasonic energy to the outside of the housing 1. The motor 3 is fixed to the housing 1, and the transmission assembly 4 is drivenly connected to the motor 3 and the transducer 2, and at least drives the transducer 2 to rotate around a first direction. The radially magnetized magnet 5 is mounted on the transmission assembly 4 and rotates synchronously with the transmission assembly 4. The position sensor 7 is disposed opposite to the radially magnetized magnet 5 and is used to sense the magnetic field changes generated by the radially magnetized magnet 5 during rotation. It can generate a continuous displacement feedback signal based on the magnetic field changes. The displacement feedback signal constitutes at least a part of the enable signal for allowing the transducer 2 to output ultrasonic energy, and is used to determine whether the real-time position of the transducer 2 conforms to a preset motion trajectory. By integrating the radially magnetized magnet 5 onto the transmission assembly 4, the radially magnetized magnet 5 is positioned on the power transmission chain from the motor 3 to the transducer 2. Combined with a high-response position sensor 7, this enables high-frequency, continuous, non-contact real-time monitoring of the transducer 2's position. This solution upgrades position detection from a traditional discrete start-end point mode to a full-coverage continuous mode throughout the motion process. This improves the real-time performance of position feedback and the system's sensitivity to transmission faults, reduces the possibility of repeated or missed detection by the transducer 2, and provides a more reliable guarantee for the accurate and safe output of ultrasonic energy.

[0036] In some embodiments, the ultrasonic generating assembly 10 further includes a detection unit 6. The detection unit 6 is fixed to the housing 1 and serves as a mounting carrier for the position sensor 7. Specifically, the detection unit 6 may include a circuit board fixedly mounted on the housing 1, as well as a microprocessor and related peripheral circuitry integrated on the circuit board. The position sensor 7 is soldered to the circuit board and electrically connected to the detection unit 6.

[0037] In this embodiment, the position sensor 7 generates continuous displacement feedback signals and sends them to the detection unit 6. The detection unit 6 receives the displacement feedback signals and determines whether the real-time position of the transducer 2 conforms to a preset motion trajectory. The detection unit 6 calculates the real-time rotation angle and angular velocity of the radially magnetized magnet 5 using an internal algorithm, and obtains the precise position information of the transducer 2 in real time based on the kinematic model of the transmission component 4, comparing it with the theoretical position of the preset trajectory. When the detection unit 6 determines that the real-time position conforms to the preset motion trajectory, it generates at least a portion of an enable signal.

[0038] This preferred embodiment adds a detection unit 6 to the basic scheme, which enables further processing and intelligent judgment of the displacement feedback signal. The enable signal is composed of the "displacement feedback signal" and the "detection unit judgment confirmation signal". While retaining the advantage that the displacement feedback signal itself is a component of the enable signal, it further improves the accuracy and reliability of safety control.

[0039] In some embodiments, such as Figure 3 and Figure 4 As shown, the transmission assembly 4 includes a driving gear 41, a driven gear 42, and a power output assembly 43. The transmission assembly 4 serves as an intermediate power transmission and conversion mechanism connecting the motor 3 and the transducer 2, and is used to convert the rotational motion output by the motor 3 into the composite motion required to drive the transducer 2 to move along a specific trajectory.

[0040] The drive gear 41 is fixedly connected to the output shaft 31 of the motor 3. The drive gear 41 directly receives power from the motor 3, and the rotational speed of the drive gear 41 is directly related to the rotational speed of the motor 3. Specifically, the drive gear 41 can achieve synchronous rotation with the shaft of the motor 3 through key connection, interference fit, or threaded fastening.

[0041] Driven gear 42 meshes with driving gear 41. Driven gear 42 is used to receive and transmit power from driving gear 41. Depending on the gear ratio of driving gear 41 to driven gear 42, deceleration, speed increase or constant speed transmission can be achieved.

[0042] One end of the power output assembly 43 is driven and connected to the driven gear 42, and the other end is driven and connected to the transducer 2. The power output assembly 43 is used to further convert and output the single-axis rotational motion of the driven gear 42 into the final motion form required to drive the transducer 2. Specifically, the power output assembly 43 may include a motion conversion mechanism composed of a rotating shaft 431, a track disk 432, a slide rail 433, a sliding member 434, etc., the purpose of which is to convert the rotational motion into two-dimensional or three-dimensional motion that causes the transducer 2 to move along a preset trajectory (e.g., a planar helical trajectory).

[0043] The radially magnetized magnet 5 is mounted on the drive gear 41. Thus, the position monitoring point is located at the power input end of the entire transmission chain. Specifically, the radially magnetized magnet 5 can be installed coaxially with the drive gear 41, for example, by embedding it in a snap-fit ​​groove on the end face or side of the drive gear 41, or by fixing it with adhesive. This arrangement allows the rotation angle of the radially magnetized magnet 5 to directly reflect the rotation state of the output shaft 31 of the motor 3, i.e., the original power source.

[0044] Thus, by monitoring the rotation of the drive gear 41, the detection unit 6 can acquire the motion information of the front end of the transmission system. Based on the fixed transmission ratio from the drive gear 41 to the driven gear 42, and the known kinematic relationship between the driven gear 42 and the power output component 43 between the transducer 2, the system can accurately deduce the real-time position of the transducer 2 at the end of its motion trajectory. Setting the detection point on the drive gear 41 reduces the impact of errors caused by gear backlash, elastic deformation, etc., in the downstream transmission chain on position detection, making the displacement feedback signal more directly reflect the driving intention and improving the source accuracy and response speed of the entire position monitoring system. At the same time, this integrated design also simplifies the structure, eliminating the need to add additional detection wheels or transmission components for the detection function.

[0045] In some embodiments, such as Figure 5 As shown, the radially magnetized magnet 5 is coaxially arranged with the driving gear 41. That is, the rotation center axis of the radially magnetized magnet 5 coincides with the rotation center axis of the driving gear 41. Specifically, a concentric mounting position (such as the slot 411 described below) can be machined on the end face or wheel body of the driving gear 41, and the radially magnetized magnet 5 can be fixed to the mounting position by interference fit, snap-fit, or adhesive, thereby ensuring the rotational synchronization and coaxiality of the two. This coaxial arrangement ensures that when the radially magnetized magnet 5 rotates, the switching plane of the NS magnetic poles is parallel to and centered with the rotation plane of the gear, so that the magnetic field change period sensed by the position sensor 7 can strictly correspond to the rotation angle of the driving gear 41, eliminating the angle detection error caused by eccentric rotation, and providing a geometric basis for subsequent accurate calculation of the transducer 2 position.

[0046] In some embodiments, such as Figure 5 As shown, the central axis of the radially magnetized magnet 5 passes through the geometric center of the sensing area of ​​the position sensor 7. That is, after installation and positioning, the axis originating from the rotation center of the radially magnetized magnet 5 passes through the center point of the sensing element (such as the sensing area of ​​a Hall element) of the position sensor 7 on a projection plane perpendicular to this axis. Specifically, this can be achieved through precise alignment using tooling fixtures during assembly, or by designing corresponding positioning structures on the circuit board and housing 1. This alignment allows the magnetic lines of force of the radially magnetized magnet 5 to pass through the sensing area of ​​the sensor in a more symmetrical manner when the radially magnetized magnet 5 rotates, resulting in a stronger amplitude and more regular waveform for the sensor output signal (such as a voltage pulse). This improves the possibility of weak signal, low signal-to-noise ratio, or unclear pulse edges due to misalignment between the radially magnetized magnet 5 and the position sensor 7, improves the quality and reliability of the displacement feedback signal, and makes the detection unit 6 more accurate in judging angles and speeds.

[0047] In some embodiments, such as Figure 5As shown, the radially magnetized magnet 5 is coaxially arranged with the drive gear 41, and the central axis of the radially magnetized magnet 5 passes through the geometric center of the sensing area of ​​the position sensor 7. In this way, by ensuring rotational concentricity and sensing alignment, the influence of mechanical installation tolerances and magnetic field asymmetry on detection accuracy is reduced. The system can obtain a more stable and linear raw angle signal, reducing the possibility of errors introduced by signal distortion when calculating the position of the transducer 2, thereby improving the accuracy and anti-interference capability of real-time motion position monitoring.

[0048] In some embodiments, such as Figure 3 and Figure 5 As shown, a slot 411 is provided on the wheel body of the drive gear 41. This slot 411 is spatially located between the power-providing motor 3 and the position sensor 7 responsible for detection. For example, in Figure 3 From the view shown, motor 3 is above slot 411, and position sensor 7 is directly below slot 411. Radial magnet 5 is fixed in slot 411 by snap-fit ​​and interference fit or by adhesive fixation.

[0049] In this way, the radial magnet 5 is directly integrated onto the drive gear 41 via a dedicated slot 411, simplifying the overall structure and eliminating the need for a separate bracket or connector to fix the radial magnet 5, thus reducing the number of parts and assembly complexity. Furthermore, the rigid connection method of direct snap-fit ​​fixation ensures that the radial magnet 5 is constrained radially by the groove wall of the slot 411, reducing the possibility of it loosening under centrifugal force. Simultaneously, the interference fit or auxiliary bonding reduces the possibility of axial movement of the radial magnet 5. This improves the mechanical reliability of the radial magnet 5 under long-term high-speed operation and reduces the possibility of signal reference drift due to vibration, providing a solid structural foundation for continuous, stable, and accurate monitoring of the transmission input status.

[0050] In some embodiments, such as Figure 4 and Figure 6 As shown, both the driven gear 42 and the driving gear 41 are external gears, transmitting power and motion through the meshing of their tooth profiles. The power output assembly 43 drives the transducer 2 to rotate around a first axis, which is specifically defined as the central axis of the driven gear 42. Specifically, the driving gear 41 and the driven gear 42 form a pair of parallel-shaft external meshing gears, which makes the rotation axis of the power output assembly 43 (i.e., the first axis) and the output shaft 31 of the motor 3 parallel and spaced apart (i.e., not on the same straight line) in a spatial relationship.

[0051] Thus, compared to a layout where the output shaft 31 of the motor 3 is directly coaxially connected to the power output assembly 43 via a coupling or sleeve, this embodiment of the invention achieves a "Z"-shaped or parallel offset in the power transmission path through a pair of meshing gears. This layout allows the motor 3 and the power output assembly 43 to be spatially staggered, rather than necessarily being directly aligned along a straight line. Therefore, along the axial direction of the output shaft 31 of the motor 3 (which is also typically the direction of the device's thickness or height), the motor 3, the gear pair, and the power output assembly 43 can partially overlap or be arranged more compactly, thereby helping to reduce the overall size or height of the ultrasonic generator assembly 10 in this direction. This parallel-shaft gear transmission layout provides greater flexibility for optimizing the internal space of the product.

[0052] In some embodiments, such as Figure 4 and Figure 7 As shown, the power output assembly 43 includes a rotating shaft 431, a track disk 432, a slide rail 433, and a sliding member 434. It should be noted that... Figure 4 and Figure 7 The perspective shown is opposite; if we take... Figure 4 The perspective is defined as a top-down perspective, then Figure 7 The perspective will be from bottom to top.

[0053] like Figure 3 As shown, one end of the rotating shaft 431 is driven and connected to the motor 3, and the other end is spaced apart from the transducer 2. The output shaft 31 of the motor 3 directly drives the rotating shaft 431 to rotate, but the rotating shaft 431 does not directly drive the transducer 2. The track disk 432 is through which the rotating shaft 431 passes and is clearance-fitted with the rotating shaft 431, that is, the track disk 432 does not rotate synchronously with the rotating shaft 431. The track disk 432 includes a guide structure 4321 extending around the rotating shaft 431 in a helical trajectory, that is, the central axis of the rotating shaft 431 is the center point of the helical trajectory.

[0054] The slide rail 433 is coaxially arranged with the rotating shaft 431 and rotates differentially relative to the track disk 432. That is, the slide rail 433 is directly driven by the rotating shaft 431 and rotates synchronously with the rotating shaft 431. The transducer 2 is mounted on the sliding member 434, which rotates with the slide rail 433 and slides relative to the slide rail 433 along the spiral trajectory of the guide structure 4321, either close to or away from the central axis of the rotating shaft 431. It should be noted that in this embodiment, the track disk 432 may or may not rotate, as long as the sliding member 434 can rotate along the spiral trajectory of the guide structure 4321 and slide relative to the slide rail 433 to achieve translation.

[0055] The slider 434 rotates and translates along the spiral trajectory of the guide structure 4321, causing the transducer 2 to move along the spiral trajectory in the first plane, forming a spiral motion path in the first plane. It should be noted that the first plane does not refer to a single fixed plane, but rather a collection of multiple parallel planes, as shown in the schematic diagram of this application. Figure 2 The paper plane shown is the first plane.

[0056] Transducer 2 continuously changes position along the guide structure 4321 on the first plane, making it difficult for the incident and reflected waves to be stably superimposed at a fixed position, thus reducing the generation of standing waves. From the center to the edge of the spiral, the radius of rotation of the spiral gradually increases. Transducer 2 moves slowly and stays for a longer time in the central region near the center of the spiral, resulting in a larger total amount of ultrasonic energy applied to that region. Transducer 2 rotates at a higher speed in the peripheral region near the edge of the spiral, resulting in a relatively shorter dwell time per unit area. However, it should be noted that the relatively shorter dwell time in the peripheral region does not mean that the ultrasonic energy is not concentrated there. Transducer 2 can move to the peripheral region and output ultrasonic waves in a concentrated manner, thus concentrating ultrasonic energy in both the central and peripheral regions. The different speeds of transducer 2 in the central and peripheral regions of the spiral, along with this speed variation characteristic, make the ultrasonic energy distribution more in line with the actual requirement of "stronger at the center and weaker at the periphery," reducing the waste of ultrasonic energy caused by excessive dwell time in the peripheral region and improving the overall effective utilization rate of ultrasonic energy.

[0057] Thus, a single motor 3 can achieve both translation on the first plane and rotation around the first direction of the transducer 2, reducing the number of components in the ultrasonic generator assembly 10. Even if the position of the housing 1 on the first plane remains unchanged, the transducer 2 can emit ultrasonic waves at multiple positions while rotating and translating, allowing the ultrasonic energy to cover a larger area and expanding the effective radiation area of ​​the ultrasonic generator assembly 10. Furthermore, because the transducer 2 performs two movements, its vibration is not just a single amplitude or frequency, but a multi-dimensional superposition of vibrations, which can more effectively excite the piezoelectric effect of the piezoelectric material, increase the vibration intensity, and thus enhance the ultrasonic output. The two movements can further change the vibration direction of the transducer 2 to adjust its resonant state, reduce the loss of ultrasonic energy at non-resonant frequencies, concentrate the ultrasonic energy in the output area, and increase the ultrasonic energy density of a single output of the ultrasonic generator assembly 10.

[0058] Specifically, such as Figure 4 and Figure 7 As shown, for ease of understanding, this embodiment of the invention provides an exemplary scheme for realizing the movement of the transducer 2 along a spiral trajectory on a first plane.

[0059] The guide structure 4321 is a groove. The sliding member 434 includes a body 4341 and a connector 4342. The body 4341 is fixed to the transducer 2 and slides relative to the slide rail 433. The connector 4342 protrudes from the body 4341. The slide rail 433 has a groove 4331 for the body 4341 to slide. The connector 4342 passes through the groove 4331 and is inserted into the guide structure 4321. In this way, the connector 4342 is inserted into the groove, and the sidewall of the groove provides guidance for the movement of the connector 4342 by restricting the position of the connector 4342. The transmission assembly 4 also includes a differential gear set 44, which is rotatably connected to the housing 1. The differential gear set 44 is drivenly connected to both the rotating shaft 431 and the track disk 432. Through the differential gear set 44, the rotating shaft 431 indirectly drives the track disk 432 to rotate. The differential gear set 44 creates a speed difference between the rotational speed of the track disk 432 and the rotational speed of the shaft 431. The speed distribution of each differential gear in the differential gear set 44 can be adjusted as needed, reducing the mechanical stress caused by the speed mismatch between the track disk 432 and the shaft 431. This provides a smoother, safer, and more efficient power transmission, and facilitates the movement of the transducer 2 along a spiral trajectory on the first plane.

[0060] like Figure 8 As shown, this embodiment of the invention provides an ultrasonic device, which includes the ultrasonic generating component 10 described in any of the above embodiments. The ultrasonic device also includes a device body 20, a controller 30, and a switch 40. The ultrasonic device outputs ultrasonic waves through the ultrasonic generating component 10, which integrates real-time position monitoring functionality, for example, in a beauty device used for skin care.

[0061] The device body 20 constitutes the outer shell and handheld portion of the ultrasound device, providing the user with a physical object for gripping and operation. The ultrasound generating component 10 is installed inside the front end or working end of the device body 20, and its transducer 2 output surface is typically aligned with the treatment window on the surface of the device body 20. The device body 20 provides mechanical support and physical protection for all internal functional modules and forms the user interface.

[0062] The controller 30 is installed inside the device body 20. The controller 30 is typically a main control circuit board containing a microprocessor, memory, and input / output interfaces. The controller 30 is the "brain" of the ultrasound device, responsible for executing programs, processing signals, and coordinating the operation of various components.

[0063] The switch 40 is mounted on the surface of the device body 20, such as the side or top, with some of its structure exposed for user operation by pressing, sliding, or touching. The switch 40 receives user commands such as power on / off, mode selection, or intensity adjustment. Specifically, the control functions of the switch 40 include, but are not limited to, turning the transducer 2 on and off, adjusting the ultrasonic energy output frequency of the transducer 2, adjusting the ultrasonic energy output time of the transducer 2, and turning the motor 3 on and off.

[0064] The controller 30 occupies a central position in the circuit connection relationship. The controller 30 is electrically connected to the switch 40, the detection unit 6 in the ultrasonic generator assembly 10, and the transducer 2 in the ultrasonic generator assembly 10. Specifically, the controller 30 receives a trigger signal from the switch 40 via wires or flexible circuits; the controller 30 acquires an enable signal or fault signal generated at least based on the displacement feedback signal; the controller 30 controls the power supply and operating parameters of the transducer 2 via a drive circuit. This enable signal or fault signal can be generated by the detection unit 6 and sent to the controller 30 via a signal line, or it can be generated by the controller 30 itself based on the displacement feedback signal, or generated by other processing units and then sent to the controller 30. It should be noted that... Figure 8 The dashed lines in the diagram only indicate electrical connections and do not refer to specific parts. Figure 8 The two components connected at both ends of the same dotted line are electrically connected.

[0065] The controller 30 is configured to execute specific control logic: responding to the triggering of the switch 40 and controlling the operating state of the ultrasonic generating component 10 and the energy output of the transducer 2 based on an enable signal or fault signal generated at least based on the displacement feedback signal. Specifically, the controller 30 executes the following process: First, the controller 30 responds to the user's triggering operation of the switch 40. For example, when the user presses the power button, the controller 30 is awakened and begins system initialization. Subsequently, during operation, the control logic of the controller 30 depends on the enable signal or fault signal generated at least based on the displacement feedback signal. When the detection unit 6 (or other processing unit) continuously outputs an enable signal indicating "normal position," the controller 30 determines that the transducer 2's motion trajectory is correct, and then, according to a preset program, controls the transducer 2 to precisely emit ultrasonic energy at a specific point on the motion trajectory. At this time, the ultrasonic device is in a normal and safe operating state.

[0066] If the controller 30 receives a fault signal indicating "position abnormality" (e.g., a first fault signal corresponding to position stagnation or a second fault signal corresponding to position jump), the controller 30's control logic will change immediately. The controller 30 will execute a preset safety strategy based on the type of fault signal received. For example, for a fault signal indicating a risk of repeated marking, the controller 30 can immediately cut off or suspend the energy supply to the transducer 2, stopping energy output even if the motor 3 is still rotating, thereby preventing the possibility of localized skin overheating at the source. For signals indicating missed markings or serious transmission faults, in addition to stopping energy output, the controller 30 may also control the motor 3 to stop and issue a fault alarm to the user via indicator lights, a screen, or a buzzer, prompting the user to check the equipment or contact maintenance.

[0067] Thus, the ultrasound device provided in this embodiment of the invention integrates the ultrasound generating component 10 with real-time motion monitoring function with a controller 30 that can intelligently respond to monitoring feedback, constructing a closed-loop control system with active safety protection capabilities. Users can start the device with a simple switch 40 operation, while complex motion state monitoring and safety decisions are automatically completed by the controller 30 in the background. The enabling or fault signals upon which these safety decisions are based are at least generated based on displacement feedback signals, and their source is not limited to the detection unit, enhancing the flexibility of the system architecture. This design reduces reliance on user expertise and simplifies operation. Simultaneously, the ultrasound device can intervene before potential skin safety risks (such as repeated application) actually occur, upgrading the traditional "shutdown after failure" mode to an "anomaly prediction and prevention" mode, thereby improving the safety of the ultrasound device in home or professional use scenarios. Furthermore, by ensuring that energy is output only at the correct location, the accuracy and uniformity of the treatment effect are guaranteed, improving the user experience and the predictability of the treatment effect.

[0068] like Figure 9 As shown, this embodiment of the invention also provides a safety control method, which is applied to the ultrasonic generating component 10 containing a real-time position monitoring structure described in any of the foregoing embodiments. The core of this safety control method is to dynamically determine whether to allow the transducer 2 to output ultrasonic energy by continuously verifying whether the actual movement position of the transducer 2 meets expectations and making the displacement feedback signal constitute at least a part of the enabling signal for allowing the transducer 2 to output ultrasonic energy, thereby achieving proactive safety control of the operation process.

[0069] The safety control method begins with step S100: starting motor 3, which drives transducer 2 to move along a preset motion trajectory via transmission assembly 4. In step S100, after motor 3 is powered on and initialized, controller 30 sends a drive command to motor 3. Motor 3 begins to rotate, and the power of motor 3 is transmitted through transmission assembly 4 (e.g., driving gear 41, driven gear 42, and power output assembly 43), ultimately transforming into mechanical action that drives transducer 2 to perform a specific form of motion (such as moving along a spiral trajectory). The preset motion trajectory has been pre-stored in controller 30 or detection unit 6, defining the spatial coordinate sequence that transducer 2 should theoretically reach at each moment.

[0070] Next, step S200 is executed: the position sensor 7 acquires a displacement feedback signal reflecting the movement position of the transducer 2 in real time. As the transmission assembly 4 operates, the radially magnetized magnet 5, rotating synchronously with the transmission assembly 4, generates a periodically changing magnetic field. The fixedly positioned position sensor 7 (such as a Hall sensor) continuously senses this magnetic field change and converts it into a series of continuous electrical signals, i.e., the displacement feedback signal. The frequency of this displacement feedback signal corresponds to the rotational speed, and the number of pulses or phase changes of the displacement feedback signal encode the rotation angle information, thus indirectly but continuously reflecting the instantaneous motion state of the motor 3.

[0071] Then, step S300 is performed: the real-time position of transducer 2 is determined based on the displacement feedback signal. The displacement feedback signal is sent to a processing unit, which may be a detection unit 6, a controller 30, or other circuits or chips with signal processing capabilities. The processing unit receives the raw displacement feedback signal from the position sensor 7 and processes these displacement feedback signals using internal algorithms (such as pulse counting, frequency measurement, and kinematic conversion based on transmission ratio). Specifically, the processing unit first calculates the real-time rotation angle and speed of the radially magnetized magnet 5 (i.e., the driving gear 41), and then, based on the fixed and known geometric relationships and transmission ratios between the various components of the transmission assembly 4 (driving gear 41, driven gear 42, and power output assembly 43), it uses a mathematical model to calculate in real time and outputs the specific position coordinates or state parameters of the transducer 2 on the preset motion trajectory at the current moment.

[0072] The next step is S400: comparing the real-time position with the expected position on the preset motion trajectory. The processing unit (e.g., detection unit 6 or controller 30) compares the real-time position information of the transducer 2 calculated in step S300 with the expected position information of the preset trajectory at the same time point stored in the system. The comparison process typically includes position deviation calculation to determine whether the real-time position falls within an allowable error range centered on the expected position. This allowable error range can be preset based on transmission accuracy, detection accuracy, and safety margin.

[0073] Finally, step S500 is executed: only when the real-time position matches the expected position, the displacement feedback signal constitutes at least a portion of the enabling signal that allows transducer 2 to output ultrasonic energy. "Matching" means that the deviation between the real-time position and the expected position is within the allowable error range, achieving safe control. When this condition is met, the displacement feedback signal itself is used as a component of the enabling signal—its frequency, amplitude, or phase characteristics characterize the correct motion state. This signal can act directly or in conjunction with other enabling conditions (such as system ready signals, user trigger signals, etc.) to authorize transducer 2 to emit pulsed ultrasonic energy at this time and position. When the real-time position does not match the expected position, abnormal characteristics of the displacement feedback signal (such as frequency loss, amplitude distortion, phase jumps, etc.) will cause the enabling signal to be incomplete or fail, thereby automatically prohibiting or interrupting the energy output of transducer 2. It should be noted that in the embodiment with detection unit 6, detection unit 6 can generate a portion of the enabling signal when it determines that the real-time position matches the expected position. This portion acts in conjunction with other enabling conditions (such as system ready signals, user trigger signals, etc.) to form a complete enabling signal.

[0074] Thus, this safety control method constructs a closed-loop safety interlocking mechanism based on real-time position verification. It binds the energy output authority of transducer 2 to the accuracy of its motion trajectory, and by directly incorporating displacement feedback signals into the enable conditions, it achieves the association between position verification and energy authorization. This safety control method does not rely on preset timing control of energy emission, adding the real-time and necessary permission condition of "position correctness." Through continuous position verification and conditional authorization, this safety control method can directly and effectively reduce the possibility of repeated energy reception (repeated spotting) at the same position due to unexpected jamming of the transmission system, and also reduces the possibility of complete energy omission at the predetermined position (missed spotting) due to transmission jumps. This provides proactive and real-time protection for the safety of ultrasound cosmetic treatments, improving the level of protection for the user's skin.

[0075] In some embodiments, such as Figure 9 As shown, the safety control method also includes an anomaly monitoring step. This anomaly monitoring step is located after step S400 (comparing the real-time position with the expected position) and before step S500 (generating an enable signal). This anomaly monitoring step includes: if the real-time position is found to be inconsistent with the expected position in step S400, the system does not directly proceed to step S500, but first enters the anomaly analysis process to further determine the specific type of the anomaly.

[0076] If the current anomaly is determined to be a "position jamming anomaly" according to the predetermined algorithm, the system executes the first safety strategy. The core action of the first safety strategy includes generating a first fault signal, which is used by the controller 30 to request the immediate cessation of the ultrasonic energy output of the transducer 2, thereby prioritizing the cutting off of the energy source of the transducer 2 when there is a possibility of repeated pulses.

[0077] If the current anomaly is determined to be a "position jump anomaly," the system executes a second safety strategy different from the first safety strategy. The core actions of the second safety strategy include generating a second fault signal, which is used to request the controller 30 to implement more stringent protection measures, such as requesting the complete shutdown of motor 3 to prevent the fault from escalating, and / or triggering fault alarms in the form of sound or light to notify the user.

[0078] Thus, by adding an anomaly monitoring step, the safety control method of this embodiment can not only detect deviations but also further distinguish whether the nature of the deviation is "position jamming" or "position jump". For "position jamming," the most common fault that directly leads to repeated marking, the first safety strategy (stopping energy output) is executed, achieving rapid and accurate point-to-point protection while ensuring safety and minimizing interference with other parts of the system (such as the operation of motor 3). For "position jump," which may be more dangerous and indicates a possible failure of the mechanical transmission, the second safety strategy, including shutdown and alarm, is executed, taking protective and warning measures. This differentiated safety response mechanism based on anomaly type makes safety protection more intelligent and refined. It can match appropriate handling intensity according to the potential risk level of the fault, thereby improving safety while also optimizing system availability and user experience.

[0079] In some embodiments, such as Figure 9 As shown, the condition for determining a position jamming anomaly is: the real-time position of transducer 2 remains unchanged for more than a preset time during multiple consecutive detection cycles. In other words, the detection unit 6 does not detect any displacement change in transducer 2 during multiple consecutive detection cycles (e.g., three or more), and the total duration of this "no position change" state exceeds a preset time threshold (e.g., 100 milliseconds). This preset time threshold is typically set based on the mechanical response time of the transmission system, the sampling period of the control system, and a safety margin.

[0080] The logic behind this judgment is based on the physical fact that under normal driving of motor 3, transducer 2 should move continuously; prolonged position stagnation usually indicates jamming or severe blockage in the transmission chain. By detecting the continuity and consistency of the real-time position data of transducer 2, it is possible to reliably distinguish between genuine mechanical jamming and occasional signal interference, thereby more accurately determining position jamming and implementing the first safety strategy.

[0081] In some embodiments, such as Figure 9 As shown, the condition for determining an abnormal position jump is: the displacement increment of transducer 2 in two adjacent detection cycles is greater than a preset threshold. The preset threshold is a preset multiple of the theoretical maximum displacement increment calculated based on the current speed of motor 3, the transmission ratio of transmission component 4, and the detection cycle duration.

[0082] The displacement increment of transducer 2 within two adjacent detection cycles (i.e., the most recent calculation cycle and the previous calculation cycle) exceeds a preset displacement change threshold. This preset threshold is not a fixed value but is dynamically calculated: it is based on the current commanded speed of motor 3, the total transmission ratio of transmission component 4 from drive gear 41 to transducer 2, and the system's detection cycle duration. It calculates the theoretically maximum displacement increment that transducer 2 can move within a single detection cycle under ideal conditions, and then multiplies this theoretical maximum displacement increment by a preset multiple greater than 1 (e.g., 1.5 or 2 times) as the final judgment threshold. This judgment logic aims to identify abnormal, sudden, large displacements, which are usually caused by gear slippage, tooth skipping, or momentary loosening of the transmission connection. Thus, this dynamic threshold takes into account the normal speed changes of motor 3 at different speeds, making the judgment more intelligent and accurate, and reducing the possibility of false alarms due to normal acceleration processes.

[0083] In some embodiments, such as Figure 9 As shown, the safety control method also includes a speed warning step following step S200 (acquiring displacement feedback signal). This speed warning step includes: calculating the real-time movement speed of transducer 2 based on continuous displacement feedback signals; if the real-time movement speed deviates from the preset speed range, adjusting the drive parameters of motor 3, or issuing a speed abnormality warning.

[0084] The detection unit 6 not only calculates the position using displacement feedback signals, but also calculates the speed of transducer 2 in real time based on the rate of change of continuous signals (such as pulse frequency). The system compares the calculated real-time speed with a preset safe or ideal speed range. If the real-time speed continuously deviates from (e.g., below or above) this preset range, it indicates that the transmission system may be in an unhealthy state, such as abnormal load, unstable drive, or decreased efficiency. At this time, the system can take two main measures: first, adjust the drive parameters of motor 3, such as fine-tuning the motor 3 current or PWM duty cycle through a PID algorithm, in an attempt to pull the speed back to the normal range, which is an active compensation adjustment; second, directly issue a speed abnormality warning signal to indicate that there is a potential problem in the system or the user, which is a passive warning mechanism. The speed warning step, as a supplement to the position monitoring step, can detect some progressive faults that may eventually lead to abnormal position earlier.

[0085] In some embodiments, such as Figure 9 As shown, the safety control method also includes a status indication step. This status indication step displays the position information, motion status, or system fault information of the transducer 2 in real time through a display unit or indicator light.

[0086] This status indication step can display information related to the system's operating status to the user in real time through a display unit (such as an LCD screen or OLED screen) or indicator lights (such as LEDs) integrated on the ultrasonic device. The displayed content may include: the relative position information of transducer 2 on a preset trajectory (such as progress percentage), the current operating mode status (such as normal operation, speed adjustment, alarm status), and specific fault information detected by the system (such as "Position abnormal, please stop use"). This status indication step transforms the "invisible" status of the internal monitoring system into visually perceptible information for the user, improving the user-friendliness and transparency of human-machine interaction. This status indication step allows the user to immediately understand whether the ultrasonic generating component 10 is working properly and to receive clear prompts when a fault occurs, thereby guiding them to take the correct subsequent actions (such as pausing use or contacting maintenance), further enhancing the overall safety and controllability of the ultrasonic generating component 10.

[0087] The above description is merely an embodiment of the present invention and is not intended to limit the scope of protection of the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and scope of the present invention are included within the scope of protection of the present invention.

Claims

1. An ultrasonic generating component, characterized in that, include: case; A transducer, disposed inside the housing, is used to output ultrasonic energy to the outside of the housing; The motor is fixed to the housing; A transmission assembly is driven and connected to the motor and the transducer, and at least drives the transducer to rotate about a first direction; A radially magnetized magnet is mounted on the transmission assembly and rotates synchronously with the transmission assembly; A position sensor is electrically connected to the detection unit and is positioned opposite to the radially magnetized magnet. The position sensor is used to sense the magnetic field changes generated by the radial magnetized magnet during rotation, and generates a continuous displacement feedback signal based on the magnetic field changes to determine whether the real-time position of the transducer conforms to the preset motion trajectory. The displacement feedback signal constitutes at least a part of the enable signal for allowing the transducer to output ultrasonic energy.

2. The ultrasonic generating component according to claim 1, characterized in that, The ultrasound generating component also includes: The detection unit is fixed to the housing and electrically connected to the position sensor; The detection unit receives the displacement feedback signal, determines whether the real-time position of the transducer conforms to a preset motion trajectory, and generates at least a portion of the enable signal when the determination is correct.

3. The ultrasonic generating assembly according to claim 1 or 2, characterized in that, The transmission assembly includes: The drive gear is fixedly connected to the output shaft of the motor; The driven gear meshes with the driving gear; The power output component is connected at one end to the driven gear and at the other end to the transducer. The radially magnetized magnet is disposed on the drive gear.

4. The ultrasonic generating component according to claim 3, characterized in that, The radially magnetized magnet is coaxially arranged with the drive gear, and / or the central axis of the radially magnetized magnet passes through the geometric center of the sensing area of ​​the position sensor.

5. The ultrasonic generating assembly according to claim 3, characterized in that, The drive gear has a slot located between the motor and the position sensor; wherein the radially magnetized magnet is engaged and fixed within the slot.

6. The ultrasonic generating assembly according to claim 3, characterized in that, Both the driven gear and the driving gear are external gears. The power output component drives the transducer to rotate around a first axis, which is the central axis of the driven gear.

7. The ultrasonic generating assembly according to claim 6, characterized in that, The power output component includes: The rotating shaft has one end coaxially connected to the driven gear and the other end spaced apart from the transducer; A track disk through which the rotating shaft passes and with clearance fit to the rotating shaft, the track disk including a guide structure extending in a spiral trajectory around the rotating shaft; The slide rail is coaxially arranged with the rotating shaft and rotates at a differential speed relative to the track disk; A sliding member, on which the transducer is mounted, the sliding member rotates with the slide rail and slides relative to the slide rail along the spiral trajectory of the guide structure, so that the transducer moves along the spiral trajectory in a first plane; Wherein, the central axis of the rotating shaft is the first axis, and the first plane is perpendicular to the first axis.

8. An ultrasonic device, characterized in that, The ultrasonic generating assembly according to any one of claims 1 to 7 further includes: The device body, wherein the ultrasonic generating component is installed within the device body; The controller is installed inside the device body; A switch is mounted on the surface of the device body. The controller is electrically connected to the switch, the detection unit in the ultrasonic generator assembly, and the transducer, and is configured to: control the operating state of the ultrasonic generator assembly and the energy output of the transducer in response to the triggering of the switch and based on an enable signal or fault signal generated at least based on the displacement feedback signal.

9. A safety control method, characterized in that, The safety control method, applied to the ultrasound generating assembly as described in any one of claims 1 to 7, comprises: Step S100: Start the motor and drive the transducer to move along a preset motion trajectory through the transmission assembly; Step S200: The displacement feedback signal reflecting the movement position of the transducer is acquired in real time through the position sensor; Step S300: Determine the real-time position of the transducer based on the displacement feedback signal; Step S400: Compare the real-time position with the expected position on the preset motion trajectory; Step S500: Only when the real-time position matches the expected position, make the displacement feedback signal constitute at least a portion of the enable signal for allowing the transducer to output ultrasonic energy.

10. The safety control method according to claim 9, characterized in that, The security control method further includes an anomaly monitoring step, which is located after the comparison operation in step S400 and before the execution of step S500. The anomaly monitoring step includes: If the comparison reveals that the real-time location does not match the expected location, the anomaly type will be further determined. If the position is determined to be abnormal, a first safety strategy is executed, which includes generating a first fault signal to request the transducer to stop outputting ultrasonic energy. If the position jump is determined to be abnormal, a second safety strategy is executed. The second safety strategy includes generating a second fault signal for requesting the motor to stop and / or triggering a fault alarm.

11. The security control method according to claim 10, characterized in that, The condition for determining a position jamming abnormality is that the real-time position of the transducer remains unchanged for a duration longer than a preset time within multiple consecutive detection cycles.

12. The security control method according to claim 10, characterized in that, The condition for determining an abnormal position jump is that the displacement increment of the transducer in two adjacent detection cycles is greater than a preset threshold. The preset threshold is a preset multiple of the theoretical maximum displacement increment calculated based on the current speed of the motor, the transmission ratio of the transmission component, and the duration of the detection cycle.

13. The safety control method according to claim 9, characterized in that, The safety control method further includes a speed warning step following step S200, the speed warning step including: The real-time velocity of the transducer is calculated based on continuous displacement feedback signals; If the real-time motion speed deviates from the preset speed range, the drive parameters of the motor will be adjusted, or a speed abnormality warning will be issued.

14. The security control method according to claim 9, characterized in that, The safety control method also includes a status indication step: displaying the transducer's position information, motion status, or system fault information in real time through a display unit or indicator light.

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