Magnetic force control method and device for automatic shaking of furniture

Abstract

The invention discloses a magnetic force control method and device for automatic shaking of furniture, a controller can judge the position and the state of a swinging bracket through position signals sensed by a plurality of sensors, and the controller applies voltage to a magnetic force generator to generate magnetic force; the magnetic force generator is driven to generate repulsive force or attractive force between the swing support and the fixed support, the swing support is pushed to continuously swing in the inertia direction, magnetic force compensation enables the swing support to continuously swing in the inertia action, and when the swing support swings to the commanding height, the swing support naturally falls back. The rotating speed of the motor and the fixed size of the eccentric wheel are not limited, mechanical limited shaking is effectively avoided, and the swinging comfort is higher; the controller can control the magnetic force generator to apply magnetic force compensation of repulsive force or attractive force between the swing support and the fixed support, so that the swing support can maintain automatic swing at the speed preset by the controller, the swing action is smoother, and the body feeling of a user is better.

Description

Technical Field

[0001] The invention relates to a magnetic force control method and device for automatic shaking of furniture, belonging to the technical field of furniture. Background Art

[0002] Modern people are increasingly favoring smart furniture, especially automatic swinging sofas or chairs. Such products play an important role in modern home life, not only improving the convenience of life, but also providing users with a relaxing experience.

[0003] The original intention of designing furniture such as automatic rocking sofas or chairs is to meet the growing health and comfort needs of modern people. The automatic rocking chairs in the industry mainly realize the rocking function through motor drive and mechanical transmission system. Specifically, these rocking chairs usually use electric motors as the power source, and convert the rotational motion of the motor into the reciprocating swing of the rocking chair through mechanical structures such as reducers, gear transmissions or belt transmissions. Among them, the rocking motion of the rocking chair is usually achieved through mechanical transmission devices such as gears, belts or pulleys.

[0004] For example, in the prior art, a smart baby rocking chair uses a motor to drive a gear transmission mechanism to make the bracket swing left and right. In addition, there are some designs that use a stepper motor and a screw transmission system to achieve a smooth center of gravity shift and automatic swing. For the existing products, the motor-driven swinging method used by the sofa that can shake automatically is bound by the motor speed and the fixed size of the eccentric wheel. The strength, frequency and amplitude of the swing are constrained. The constrained shaking always makes the user feel a sense of restraint in the body, and the comfort is poor. Therefore, there is an urgent need for a magnetic control method and device for automatic shaking of furniture to improve the user's comfort during automatic swinging. Summary of the invention

[0005] In view of the deficiencies of the above-mentioned prior art, the object of the present invention is to provide a magnetic control method and device for automatic shaking of furniture, wherein the controller senses the position signal of the swing bracket through at least one sensor, and can determine the position and state of the swing bracket. The controller applies voltage to the magnetic generator, driving the magnetic generator to generate a repulsive force or an attractive force between the swing bracket and the fixed bracket, thereby pushing the swing bracket to continue shaking in the direction of inertia. Among them, the magnetic compensation makes the swing bracket continue to swing in an inertial motion. When it swings to the commanding height, the swing bracket is in a natural fall. There is no motor speed and eccentric wheel fixed size constraint, which effectively avoids mechanical constraint and shaking, and the swinging comfort is higher; and the controller can determine the swinging state of the swing bracket according to the sensor information of the swing bracket passing through at least one sensor; when the swing bracket is in the downward swing acceleration state, the controller controls the magnetic generator to apply a repulsive or attractive magnetic compensation, so that the swing bracket can maintain the downward swing speed preset by the controller; when the swing bracket is in the upward swing deceleration state, the controller can control the magnetic generator to apply a repulsive or attractive magnetic compensation, so that the swing bracket can maintain the upward swing speed preset by the controller, the swinging movement is smoother, and the user's body feeling is better.

[0006] To achieve the above-mentioned object, the present invention provides a magnetic force control method for automatic shaking of furniture, wherein a controller can sense the position of a swing bracket through at least one sensor, and the controller can apply voltage to a magnetic force generator on the swing bracket and / or the fixed bracket, driving the magnetic force generator to generate a repulsive force or an attractive force between the swing bracket and the fixed bracket, thereby pushing the swing bracket to continue shaking in the direction of inertia;

[0007] Among them, the controller can determine the swing state of the swing bracket based on the sensing information of the swing bracket passing through at least one sensor; when the swing bracket is in the downward swing acceleration state, the controller controls the magnetic generator to apply a repulsive force or an attractive force compensation, so that the swing bracket can maintain the downward swing speed preset by the controller; when the swing bracket is in the upward swing deceleration state, the controller can control the magnetic generator to apply a repulsive force or an attractive force compensation, so that the swing bracket can maintain the upward swing speed preset by the controller.

[0008] Furthermore, as a more preferred embodiment of the present invention, the swing bracket can obtain an initial kinetic energy of swing under the action of external force. When the initial kinetic energy pushes the swing bracket to generate an initial speed of swing, the controller can judge the speed of the swing bracket passing through at least one sensor, and the controller makes a judgment in the speed range preset by the corresponding at least one sensor. When the speed of the swing bracket passing through at least one sensor is greater than the preset speed range, the controller controls the magnetic generator to stop magnetic compensation; when the speed of the swing bracket decays to the speed range preset by the controller, the controller controls the magnetic generator to perform magnetic compensation, and pushes the swing bracket to continue shaking in the direction of inertia.

[0009] Furthermore, as a more preferred embodiment of the present invention, sensors are provided for the swinging stroke of the swing bracket, and a magnetic generator is provided at the position corresponding to each sensor. The control can compare the real-time status of each sensor passed by the swing bracket with the speed range preset by the controller at all times, and the controller can adjust the magnetic compensation opening and closing or size of the magnetic generator in real time.

[0010] Furthermore, as a more preferred embodiment of the present invention, the swing bracket is provided with a pressure sensor for detecting the user's weight, and the controller presets a target pressure value. When the pressure information received by the controller from the pressure sensor is lower than the target pressure value, the controller determines that no one is riding on the swing bracket, and controls the magnetic generator to stop performing magnetic compensation on the swing bracket; when the pressure information received by the controller from the pressure sensor exceeds the target pressure value, the controller controls the magnetic generator to perform magnetic compensation on the swing bracket.

[0011] Furthermore, as a more preferred embodiment of the present invention, the controller includes at least one user input, so that the user can adjust the preset speed range through at least one user input, thereby adjusting the swing speed or swing amplitude of the swing bracket.

[0012] Based on the same inventive concept, the present invention also provides a magnetic control device with automatic shaking using the above method, comprising a fixed bracket, the fixed bracket being used to be supported on the ground; a swing bracket, the swing bracket being used to be connected to a seat cushion on which a human body sits; at least one rocker member, one end of the at least one rocker member being rotatably connected to the top of the fixed bracket; the other end of the at least one rocker member being rotatably connected to the swing bracket; the swing bracket being capable of being suspended from the ground; and a magnetic force generating component, the magnetic force generating component being connected to the fixed bracket, and / or the magnetic force generating component being connected to the swing bracket, the magnetic force generating component being capable of driving the swing bracket to swing relative to the fixed bracket.

[0013] Further, as a more preferred embodiment of the present invention, the magnetic force generating assembly comprises:

[0014] at least one sensor, wherein the at least one sensor is disposed on the fixed bracket or the swing bracket;

[0015] A swing position sensing pointer, the swing position sensing pointer is arranged on the swing bracket or the fixed bracket; the swing position sensing pointer is adapted to the sensing end of the at least one sensor, and the at least one sensor can identify the position passed by the swing position sensing pointer;

[0016] A controller, the controller being electrically connected to the at least one sensor; the controller being capable of receiving sensing information of the at least one sensor triggered by the swing position sensing pointer, and determining the swing position of the swing bracket;

[0017] A magnetic generator, wherein the magnetic generator is electrically connected to the controller, and the controller can sense the movement position of the swing bracket according to the sensing information of the at least one sensor, control the magnetic generator to generate mutual repulsion, attraction or shut down the magnetic force, and can drive the swing bracket to swing relative to the fixed bracket.

[0018] Further, as a more preferred embodiment of the present invention, the magnetic force generator includes a first magnetic force generating end, the first magnetic force generating end is connected to the fixed bracket, the magnetic force generated by the magnetic force generating component can act on the swing bracket, and can drive the swing bracket to swing relative to the fixed bracket; and / or the magnetic force generating component includes a second magnetic force generating end, the second magnetic force generating end is connected to the swing bracket, the magnetic force generated by the second magnetic force generating end can act on the fixed bracket or the first magnetic force generating end, and can drive the swing bracket to swing relative to the fixed bracket.

[0019] Furthermore, as a more preferred embodiment of the present invention, it includes at least one control button electrically connected to the controller, and the user can adjust the speed range preset by the controller through the at least one control button, thereby adjusting the swing speed or swing amplitude of the swing bracket.

[0020] Furthermore, as a more preferred embodiment of the present invention, the magnetic force generating component includes at least one speed sensor, and the position of the speed sensor is adapted to the at least one sensor so that the at least one speed sensor can detect the speed of the swing position sensing pointer passing through the at least one sensor.

[0021] Furthermore, as a more preferred embodiment of the present invention, the magnetic force generating component includes a pressure sensor, which is electrically connected to the controller, and the pressure sensor is arranged between the rocking bracket and the seat cushion. The pressure sensor can detect the user's weight information and transmit the weight information to the controller.

[0022] The magnetic control method and device for automatic shaking of furniture of the present invention has a controller that senses the position signal of the swing bracket through at least one sensor, and can determine the position and state of the swing bracket. The controller applies voltage to the magnetic generator to drive the magnetic generator to generate a repulsive force or an attractive force between the swing bracket and the fixed bracket, thereby pushing the swing bracket to continue shaking in the direction of inertia. Among them, the magnetic compensation makes the swing bracket continue to swing in an inertial motion. When it swings to the commanding height, the swing bracket is in a natural fall. There is no motor speed and eccentric wheel fixed size constraint, which effectively avoids mechanical constraint and shaking, and the swinging comfort is higher; and the controller can determine the swinging state of the swing bracket according to the sensor information of the swing bracket passing through at least one sensor; when the swing bracket is in the downward swing acceleration state, the controller controls the magnetic generator to apply a repulsive or attractive magnetic compensation, so that the swing bracket can maintain the downward swing speed preset by the controller; when the swing bracket is in the upward swing deceleration state, the controller can control the magnetic generator to apply a repulsive or attractive magnetic compensation, so that the swing bracket can maintain the upward swing speed preset by the controller, the swinging movement is smoother, and the user's body feeling is better. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the structure of the magnetic force control device for automatic shaking of furniture in the embodiment.

[0024] Figure 2 Schematic diagram of the structure of the magnetic force control device using two magnetic force generators in the embodiment.

[0025] Figure 3 It is a structural schematic diagram of a magnetic force generator corresponding to each sensor of the magnetic force control device in the embodiment.

[0026] Figure 4 It is a schematic diagram of the structure of adding a pressure sensor to the magnetic control device in the embodiment.

[0027] Reference numerals:

[0028] 1-fixed bracket, 11-circular ring, 12-support arm, 2-swing bracket, 3-rocker, 4-magnetic force generating assembly, 41-sensor, 411-first sensor, 412-second sensor, 413-third sensor, 42-swing position sensing pointer, 43-controller, 431-control panel, 44-magnetic force generator, 441-first magnetic force generating end, 442-second magnetic force generating end, 45-speed sensor, 46-pressure sensor. 100-sector area. DETAILED DESCRIPTION

[0029] In order to enable those skilled in the art to better understand the technical solutions in the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of this application.

[0030] It should be noted that when an element is referred to as being "fixed on" or "set on" another component, it can be directly on the other component or indirectly set on the other component; when a component is referred to as being "connected to" another component, it can be directly connected to the other component or indirectly connected to the other component.

[0031] It should be understood that the orientation or position relationship indicated by terms such as "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or component referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0032] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, "multiple" and "several" mean two or more, unless otherwise clearly and specifically defined.

[0033] It should be noted that the structures, proportions, sizes, etc. illustrated in the drawings of this specification are only used to match the contents disclosed in the specification for people familiar with this technology to understand and read, and are not used to limit the conditions under which this application can be implemented. Therefore, they have no substantive technical significance. Any structural modification, change in proportional relationship or adjustment of size should still fall within the scope of the technical content disclosed in this application without affecting the effects and purposes that can be achieved by this application.

[0034] Example

[0035] This embodiment is intended to promote the solution of the problem in the prior art that furniture that is driven to sway by a motor and an eccentric wheel sways in a manner that is constrained by the motor's rotation speed and the fixed size of the eccentric wheel, i.e., the strength, frequency and amplitude of the swaying are constrained, and the comfort is poor. The constrained swaying always makes the user feel a sense of restraint. Figure 1-4 As shown, a magnetic control method and device for automatic shaking of furniture, wherein the controller 43 senses the position signal of the swing bracket 2 through at least one sensor, and can determine the position and state of the swing bracket 2. The controller 43 applies voltage to the magnetic generator 44, driving the magnetic generator 44 to generate a repulsive force or an attractive force between the swing bracket 2 and the fixed bracket, pushing the swing bracket 2 to continue shaking in the direction of inertia. Among them, the magnetic compensation makes the swing bracket 2 continue to swing in an inertial motion. When it swings to the commanding height, the swing bracket 2 is in a natural fall. There is no motor speed and the fixed size of the eccentric wheel to constrain, effectively avoiding mechanical constraint and shaking, and the swinging comfort is higher; and the controller 43 can determine the swinging state of the swing bracket 2 according to the sensing information of the swing bracket 2 through at least one sensor; when the swing bracket 2 is in the downward swing acceleration state, the controller 43 controls the magnetic generator 44 to apply a repulsive force or an attractive force to compensate, so that the swing bracket 2 can maintain the downward swing speed preset by the controller 43; when the swing bracket 2 is in the upward swing deceleration state, the controller 43 can control the magnetic generator 44 to apply a repulsive force or an attractive force to compensate, so that the swing bracket 2 can maintain the upward swing speed preset by the controller 43, the swinging movement is smoother, and the user's body feeling is better.

[0036] Reference Figure 1As shown, a magnetic control method for automatic shaking of furniture, wherein the controller 43 can sense the position of the swing bracket 2 through at least one sensor 41, and the controller 43 can apply voltage to the magnetic generator 44 on the swing bracket 2 and / or the fixed bracket 1, driving the magnetic generator 44 to repel or attract the swing bracket 2 and the fixed bracket 1, and push the swing bracket 2 to continue shaking in the direction of inertia. Exemplarily, a plurality of sensors 41 can be installed on the swing bracket 2, and these sensors can be a combination of one or more Hall sensors and linear displacement sensors. These sensors are used to detect the motion state of the swing bracket 2, and the motion state includes speed, position and direction. Exemplarily, the Hall sensor determines the position and direction of the swing bracket 2 by detecting changes in the magnetic field, wherein the distance and time elapsed between the Hall sensors can be known, and the speed between the Hall sensors can be calculated. It should be noted that the swing bracket 2, as a supporting part of furniture (such as a chair, a bed, etc.), can swing around a certain axis. The magnetic generator 44 can be set on the swing bracket 2. When the swing bracket 2 is in an upward swing, the controller 43 applies a voltage to the magnetic generator 44, and a repulsive force is generated between the magnetic generator 44 and the fixed bracket 1 at the corresponding position, so as to compensate for the kinetic energy consumption of the swing bracket 2 when it swings upward. In some embodiments, a power amplifier is included, and the magnetic generator 44 can be an electromagnet. The controller 43 transmits the processed signal to the power amplifier, and the power amplifier adjusts the magnitude and direction of the electromagnetic force of the electromagnet according to the instructions of the controller 43. The power amplifier is responsible for converting the weak control signal into a sufficiently large current to drive the magnetic generator 44. Exemplarily, the controller 43 can use a microcontroller to output a PWM signal to drive the on and off of the electromagnetic coil, thereby adjusting the magnitude and direction of the magnetic force. When the duty cycle increases, the electromagnetic coil is energized for a longer time, and the repulsive or attractive force generated also increases; vice versa. The controller 43 can be a single-chip microcomputer or a computer control system.

[0037] Among them, the controller 43 can determine the swing state of the swing bracket 2 passing through at least one sensor 41 according to the sensing information of at least one sensor 41; when the swing bracket 2 is in the swing acceleration state, the controller 43 controls the magnetic force generator 44 to apply a magnetic force compensation of a repulsive force or an attractive force, so that the swing bracket 2 can maintain the swing speed preset by the controller 43; when the swing bracket 2 is in the swing deceleration state, the controller 43 controls another magnetic force generator 44 to apply a magnetic force compensation of a repulsive force or an attractive force, so that the swing bracket 2 can maintain the swing speed preset by the controller 43. Exemplarily, the controller 43 receives signals from each sensor 41 and determines the state of the swing bracket 2 by analyzing the changes of these signals. For example, when the swing bracket 2 moves from one known position to another known position, the controller 43 can calculate the swing speed and acceleration according to the time difference and the displacement difference. If the speed is detected to increase and the acceleration is positive, it can be determined that the swing bracket 2 is in the swing acceleration state; conversely, if the speed is detected to decrease and the acceleration is negative, it can be determined that the swing bracket 2 is in the swing deceleration state. Exemplarily, when only one sensor 41 is set in the middle of the bottom 1 of the swing amplitude of the swing bracket, when the swing bracket 2 passes the sensor 41 for the first time and the sensor 41 for the second time, the controller 43 can determine the swing amplitude of the swing bracket 2 based on the time difference.

[0038] Reference Figure 1-3 As shown, under the action of external force, the swing bracket 2 can obtain an initial kinetic energy of swing. When the initial kinetic energy pushes the swing bracket 2 to generate an initial speed of swing, the controller 43 can judge the speed of the swing bracket 2 passing at least one sensor 41, and the controller 43 makes a judgment in the speed interval preset by the corresponding at least one sensor 41. When the speed of the swing bracket 2 passing at least one sensor 41 is greater than the preset speed interval, the controller 43 controls the magnetic generator 44 to stop magnetic compensation; when the speed of the swing bracket 2 decays to the speed interval preset by the controller 43, the controller 43 controls the magnetic compensation to push the swing bracket 2 to continue to swing in the direction of inertia. The initial kinetic energy can be fully utilized to reduce the inertia. It should be added that even if there is no initial kinetic energy, when multiple magnetic generators 44 alternately generate magnetic compensation, the swing bracket 2 can be gradually driven to swing.

[0039] Reference Figure 4As shown, in some embodiments, a speed sensor 45 is correspondingly provided in each sensor 41, and the controller 43 can read the sensing information of each speed sensor 45, judge the speed of the swing bracket 2 passing the corresponding sensor 41, and judge whether the swing bracket 2 is in an acceleration or deceleration state; the controller 43 presets a speed interval in each sensor 41, and when the swing speed of the swing bracket 2 exceeds the speed interval, the controller 43 applies voltage to the magnetic generator 44, and the magnetic force of the magnetic generator 44 is consistent with the swing speed direction, so that the speed of the swing bracket 2 passing the next sensor 41 reaches the speed interval preset by the sensor 41, and then the controller 43 stops applying voltage to the magnetic generator 44. In some embodiments, the sensor 41 can be a position sensor, wherein the time and distance between the position sensor and another position sensor are fixed, and the average speed between the two can be calculated, and the controller 43 determines whether the average speed of the distance is in the preset speed interval, and then controls the magnetic compensation. Exemplarily, the implementation process of the above method can be divided into the following steps: S1. Speed ​​interval preset: The controller 43 presets a speed interval in each sensor 41 or between two sensors 41. This speed interval is set according to the ideal speed range when the swing bracket 2 is at a specific position or position interval, and the specific position can be one or more of the multiple sensors 41. S2. Speed ​​detection and comparison: When the swing bracket 2 passes the sensor 41, the speed sensor 45 detects the actual speed of the swing bracket 2 and transmits the speed signal to the controller 43. S3. Error calculation: The controller 43 compares the actual speed with the preset speed interval and calculates the speed error. If the actual speed exceeds the preset speed interval, the controller 43 will consider that intervention is required to adjust the speed. S4. Voltage application and magnetic force adjustment: If the speed is detected to exceed the preset interval, the controller 43 will apply voltage to the magnetic generator 44. The magnetic generator 44 adjusts the magnetic field strength by changing the current intensity, thereby generating a magnetic force consistent with the speed direction of the swing bracket 2. This magnetic force will exert a reaction force on the swing bracket 2, causing it to slow down or accelerate until its speed returns to the preset speed interval. S5. Stop applying voltage: When the speed of the swing bracket 2 returns to the preset speed range, the controller 43 stops applying voltage to the magnetic generator 44, thereby stopping further intervention on the swing bracket 2. S6. Feedback and adjustment: During the whole process, the sensor 41 continuously provides real-time position and speed feedback, and the controller 43 continuously adjusts the output of the magnetic generator 44 according to these feedbacks to ensure that the swing bracket 2 can stably maintain operation within the preset speed range and improve the stability of the automatic swing.

[0040] Reference Figure 3As shown, in some embodiments, the swing travel of the swing bracket 2 is provided with a sensor 41, and a magnetic generator 44 is provided at the position of each sensor. The control can be compared with the speed range preset by the controller 43 at all times according to the real-time state of each sensor passed by the swing bracket 2, and the controller 43 can adjust the magnetic compensation opening and closing or size of the magnetic generator 44 in real time. It should be noted that, considering that when a person sits on furniture (such as a swing sofa), the lowest point in the free state changes due to the change of human body posture, and a certain position point in the swing process may never pass through the sensor set at the top of the swing travel. In this case, multiple sensors and magnetic generators 44 are provided, so that no matter what posture the person is in, at least one sensor can be sensed.

[0041] Reference Figure 4As shown, the swing bracket 2 is provided with a pressure sensor 46 for detecting the user's weight, and the controller 43 presets a target pressure value. When the pressure information received by the controller 43 from the pressure sensor 46 is lower than the target pressure value, the controller 43 determines that no one is sitting on the swing bracket 2, and controls the magnetic force generator 44 to stop performing magnetic force compensation on the swing bracket 2; when the pressure information received by the controller 43 from the pressure sensor 46 exceeds the target pressure value, the controller 43 controls the magnetic force generator 44 to perform magnetic force compensation on the swing bracket 2. In some embodiments, when the pressure information received by the controller 43 from the pressure sensor 46 exceeds the target pressure value, and when the controller 43 determines that there is an initial kinetic energy input and the swing bracket 2 is in an upward swing deceleration state, the controller 43 starts to control the magnetic force generator 44 to apply a repulsive or attractive magnetic force compensation. Exemplarily, the pressure sensor 46 can be provided on the swing bracket 2, and the swing bracket 2 is usually covered with a sofa cushion. The user sits on the sofa cushion, and the gravity of his weight acts on the pressure sensor 46. In some embodiments, the pressure sensor 46 may also be arranged on the fixed bracket 1. When the user sits on the swing bracket 2, the pressure sensor 46 is squeezed between the fixed bracket 1 and the ground. The pressure sensor 46 is used to monitor the actual pressure value on the swing bracket 2. The pressure sensor 46 is a device for measuring and monitoring pressure changes, and its working principle is to convert physical pressure into electrical signal output. When the user stands on the swing bracket 2, the pressure sensor 46 will measure the actual pressure value of the bracket in real time and feed back these data to the controller 43. Specifically, the pressure sensor 46 detects the pressure change on the bracket and converts it into an electrical signal. These signals are then transmitted to the controller 43, and the controller 43 performs corresponding processing or adjustment according to the received pressure data. It should be supplemented that the swing bracket 2 detects the user's weight through the pressure sensor 46, and combines the preset target pressure value of the controller 43 to realize the control of magnetic compensation. The specific implementation method includes: S1. Target pressure value setting: A target pressure value is preset in the controller 43, which is the expected value of the user's weight. The controller 43 compares this target pressure value with the actual pressure value fed back by the sensor. S2. Condition judgment: When the information from the pressure sensor 46 received by the controller 43 exceeds the target pressure value, and at the same time it is judged that there is an initial kinetic energy input and the swing bracket 2 is in an upward swing deceleration state, the controller 43 will start the corresponding control program. S3. Implementation of magnetic compensation: Once the above conditions are met, the controller 43 will control the magnetic generator 44 to apply a repulsive or attractive magnetic compensation. This magnetic compensation is to balance the user's weight, thereby maintaining the stability and the same swing height of the swing bracket 2. S4. Closed-loop control system: The entire process is a closed-loop control system, that is, the pressure sensor 46 monitors the pressure value in real time, and the controller 43 adjusts the magnetic compensation according to the feedback information to ensure the stable operation of the automatic swing.

[0042] Reference Figure 4 As shown, in some embodiments, the controller 43 can apply voltage to the magnetic generator 44 according to the weight of the user, so as to increase the magnetic force of the magnetic generator 44 so that the speed of the swing bracket 2 passing the next sensor 41 reaches the speed range preset by the sensor 41. It should be supplemented that a plurality of sensors are set on the fixed bracket 1 or the swing bracket 2, and the sensors may include a sensor 41, a speed sensor 45 and an angle encoder, which are used to detect parameters such as the position, speed and acceleration of the swing bracket 2. These sensors transmit data to the controller 43 in real time as feedback signals. Its control steps include: S1. Calculation and adjustment by the controller 43: The controller 43 calculates the current value to be adjusted according to the received feedback signal and the user's weight information through a preset control algorithm (such as a PID control algorithm). This algorithm dynamically adjusts the current intensity in the electromagnet according to the change of the user's weight, thereby changing the magnetic field intensity generated by the magnetic generator 44. S2. Power amplifier adjustment: The controller 43 sends the calculated current value to the power amplifier, and the power amplifier adjusts the current size in the electromagnet according to these instructions. By changing the current, the electromagnetic force can be strengthened or weakened, thereby affecting the movement speed and stability of the swing bracket 2. S3. Speed ​​control and correction: During the movement of the swing bracket 2, the sensor 41 continuously monitors its position speed deviation and feeds back the speed deviation signal to the controller 43. The controller 43 further adjusts the current of the electromagnet according to these deviation signals to ensure that the swing bracket 2 can operate in a predetermined speed range. S4. Real-time adjustment and optimization: The whole process is carried out in real time. The controller 43 continuously receives data from each sensor and performs calculations to ensure that the swing bracket 2 can operate stably under different user weight conditions and that the speed meets the preset requirements, realizing adaptive control and improving the flexibility and accuracy of the system.

[0043] Reference Figure 1-3As shown, in some embodiments, a sensor 41 of the highest swing position is preset. When the controller 43 determines that there is an initial kinetic energy input and the swing position is higher than the sensor 41 of the highest swing position, the controller 43 stops applying a repulsive or attractive magnetic compensation to the magnetic generator 44, so that the user can swing freely in the original kinetic energy state. When the free swing gradually decays, that is, when the controller 43 determines that there is an initial kinetic energy input and the swing amplitude is lower than the sensor 41 of the highest swing position for the first time, the controller 43 starts to control the magnetic generator 44 to apply a repulsive or attractive magnetic compensation. Exemplarily, a vertically downward swing position sensing pointer 42 is set at the middle bottom of the swing bracket 2. When the swing bracket 2 swings relative to the fixed bracket 1, the swing position sensing pointer 42 swings in an arc shape. A high point is selected from the fan-shaped area 100 formed in the swing stroke of the swing position sensing pointer 42. A sensor 41 is set at the high point, and the sensor is set as the sensor 41 for the highest position sensing. The control steps may be, S1. Determination of initial kinetic energy input: When the swing device starts to move, the controller 43 determines whether there is initial kinetic energy input by detecting the acceleration or speed change of the swing device. S2. Processing when the dynamic position sensing pointer of the swing bracket 2 is higher than the sensor 41 at the highest position: When the controller 43 determines that the swing position is higher than the sensor 41 at the highest swing position, the controller 43 stops applying voltage to the magnetic generator 44, that is, the magnetic generator 44 stops the magnetic compensation of repulsion or attraction. In this way, the user can swing freely in the original kinetic energy state. S3. Attenuation detection of free swing: When the swing gradually decays, that is, when the controller 43 determines that the swing amplitude is lower than the sensor 41 at the highest swing position for the first time, the controller 43 starts to control one or more magnetic generators 44 to apply a magnetic compensation of repulsion or attraction, so that the swing bracket 2 automatically swings at a fixed amplitude. S4: Dynamic compensation mechanism: In order to improve the responsiveness and stability of the system, a dynamic compensation mechanism can be introduced. Exemplarily, the magnetic compensation is adjusted in real time by the PID controller 43 to cope with dynamic changes during the swing process. S5: System feedback and adjustment: The whole system requires a feedback mechanism to ensure the accuracy of control. This can be achieved through a closed-loop control system, in which the sensor continuously feeds back the swing position and speed information to the controller 43 so as to adjust the magnetic compensation in real time.

[0044] In some embodiments, the controller 43 includes at least one user input, so that the user can adjust the preset speed range through at least one user input, thereby adjusting the swing speed or swing amplitude of the swing bracket 2. Exemplarily, the user input can be an adjustment knob, which can be rotated to adjust the swing speed or swing amplitude of the swing bracket 2 preset by the controller 43.

[0045] Reference Figure 1-4As shown, this embodiment also provides a magnetic force control device for automatic shaking of furniture, which is applied to the magnetic force control method for automatic shaking of furniture, wherein the device comprises: a fixed bracket 1, a swing bracket 2, at least one rocker 3 and a magnetic force generating assembly 4. The fixed bracket 1 is used to support the ground. For example, a circular ring 11 for stabilizing the support as a whole is provided at the bottom of the fixed bracket 1, and the size of the circular ring 11 can be greater than or equal to the outer contour size of the fixed bracket 1. The swing bracket 2 is used to connect with a cushion for human body to sit on; one end of at least one rocker 3 is rotatably connected to the top of the fixed bracket 1; the other end of at least one rocker 3 is rotatably connected to the swing bracket 2; the swing bracket 2 can be suspended on the ground. For example, support arms 12 are respectively provided on both sides of the fixed bracket 1, and the two ends of the support arm 12 are respectively rotatably connected to the rocker 3, and the two sides of the swing bracket 2 are respectively rotatably connected to the corresponding rocker 3. The magnetic force generating component 4 is connected to the fixed bracket 1 , and / or the magnetic force generating component 4 is connected to the swing bracket 2 , and the magnetic force generating component 4 can drive the swing bracket 2 to swing relative to the fixed bracket 1 .

[0046] Reference Figure 1-3 As shown, the magnetic force generating component 4 includes: at least one sensor 41, a swing position sensing pointer 42, a controller 43 and a magnetic force generator 44. At least one sensor 41 is arranged on the fixed bracket 1 or the swing bracket 2. The swing position sensing pointer 42 is arranged on the swing bracket 2 or the fixed bracket 1; the swing position sensing pointer 42 is adapted to the sensing end of at least one sensor 41, and at least one sensor 41 can identify the position where the swing position sensing pointer 42 passes; the controller 43 is electrically connected to at least one sensor 41; the controller 43 can receive the sensing information of at least one sensor 41 triggered by the swing position sensing pointer 42, and judge the swing position of the swing bracket 2; the magnetic force generator 44 is electrically connected to the controller 43, and the controller 43 can sense the movement position and state of the swing bracket 2 according to the sensing information of at least one sensor 41, control the magnetic force generator 44 to generate mutual repulsion, attraction or close the magnetic force, and can drive the swing bracket 2 to swing relative to the fixed bracket 1. Exemplarily, three sensors 41 are provided, namely a first sensor 411, a second sensor 412 and a third sensor 413, all of which are provided on the fixed bracket 1, wherein the swing position sensing pointer 42 of the swing bracket 2 in a natural suspended state is vertically arranged in the middle, and the fixed bracket 1 sets the first sensor 411 at a position corresponding to the swing position sensing pointer 42 in a natural suspended state, and within the fan-shaped area 100 where the position sensing pointer swings, the second sensor 412 and the third sensor 413 are symmetrically arranged at two sides of the swing position sensing pointer 42 in the natural suspended state.

[0047] Reference Figure 1-3As shown, the magnetic force generator 44 includes a first magnetic force generating end 441, which is connected to the fixed bracket 1. The magnetic force generated by the magnetic force generating component 4 can act on the swing bracket 2, and can drive the swing bracket 2 to swing relative to the fixed bracket 1; and / or the magnetic force generating component 4 includes a second magnetic force generating end 442, which is connected to the swing bracket 2. The magnetic force generated by the second magnetic force generating end 442 can act on the fixed bracket 1 or the first magnetic force generating end 441, and can drive the swing bracket 2 to swing relative to the fixed bracket 1. Exemplarily, the first magnetic force generating end 441 is set at the bottom of the swing bracket 2, corresponding to the position of swinging up or swinging down. The first magnetic force generating end 441 can be an electromagnet, which can generate a repulsive force or an attractive force with the fixed bracket 1 after being energized. In some embodiments, the first magnetic force generating end 441 is set at the position of the swing bracket 2 corresponding to the swing position sensing pointer 42; at least one second magnetic force generating end 442 is set on the fixed bracket 1, and the second magnetic force generating end 442 is set corresponding to the position of the swing bracket 2 swinging up or down. When the first magnetic force generating end 441 swings up or down, its position corresponds to the second magnetic force generating end 442, the first magnetic force generating end 441 and the second magnetic force generating end 442 can generate repulsive force or attractive force, and the first magnetic force generating end 441 or the second magnetic force generating end 442 is an electromagnet.

[0048] In some embodiments, at least one control button electrically connected to the controller 43 is included, and the user can adjust the speed range preset by the controller 43 through the at least one control button, thereby adjusting the swing speed or swing amplitude of the swing bracket 2. Exemplarily, the control button can be a button or a knob.

[0049] Reference Figure 1-3 As shown, in some embodiments, the magnetic force generating component 4 includes at least one speed sensor 45, and the position of the speed sensor 45 is adapted to the at least one sensor 41 so that the at least one speed sensor 45 can detect the speed of the swing position sensing pointer 42 passing through the at least one sensor 41.

[0050] Reference Figure 1-3 As shown, in some embodiments, the magnetic force generating component 4 includes a pressure sensor 46, which is electrically connected to the controller 43. The pressure sensor 46 is arranged between the swing bracket 2 and the seat cushion. The pressure sensor 46 can detect the user's weight information and transmit the weight information to the controller 43.

[0051] Reference Figure 1-4As shown, it should be supplemented that the controller 43 of this embodiment can be a control panel 431 that can be embedded in the surface of furniture, and the control panel 431 has a single-chip microcomputer or computer control system. Among them, the controller 43 can detect the position and direction of the swing bracket 2 through multiple sensors 41. The controller 43 can process the position signals fed back by each sensor and adjust the working state of the magnetic generator 44 according to these signals. This includes signal amplification, filtering and conversion to ensure the accuracy and stability of the signal. Among them, the controller 43 can drive the power amplifier to adjust the current in the electromagnet. By changing the magnitude of the current, the corresponding magnetic field strength can be generated, thereby realizing the thrust or pull control of the swing bracket 2. In some embodiments, the controller 43 is equipped with an embedded microprocessor or DSP (digital signal processor) and supports programming and software updates. More complex control logic and algorithms can be implemented to adapt to a variety of usage scenarios and needs. In some embodiments, the controller 43 includes at least one user input, wherein the user input may include the following methods: Manual control of the swing amplitude: The user can set the swing amplitude through a manual input device (such as a button, a knob, etc.), thereby adjusting the range and intensity of motion of the swing bracket 2. This method allows the user to adjust the size and frequency of the swing according to personal needs to achieve a comfortable effect. Swing mode selection: The user can select different swing modes, such as a gentle mode, a medium mode, and a strong mode. These modes are achieved by changing the current intensity of the magnetic generator 44, thereby affecting the strength and frequency of the swing. Timing function setting: The user can set the swing time period, such as setting the time period or duration of automatic shaking every day. This can be set through a timer on the controller 43 or through external device interaction (such as a smartphone application). Safety protection setting: The user can set safety protection functions, such as a maximum swing angle limit or an emergency stop button, to prevent accidents. These functions detect the position deviation of the swing bracket 2 through corresponding sensors and automatically stop the swing when it exceeds the set range. Power on and off settings, the user can turn the entire device on and off by pressing a button.

[0052] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but rather to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A magnetic force control method for automatic shaking of furniture, characterized in that: The controller can sense the position of the swing bracket through at least one sensor, and can apply voltage to the magnetic force generator on the swing bracket and / or the fixed bracket to drive the magnetic force generator to generate a repulsive force or an attractive force between the swing bracket and the fixed bracket, so as to push the swing bracket to continue to swing in the direction of inertia; Among them, the controller can determine the swing state of the swing bracket passing through at least one sensor based on the sensing information of at least one sensor; when the swing bracket is in a downward swing acceleration state, the controller controls the magnetic generator to apply a repulsive force or an attractive force compensation, so that the swing bracket can maintain a downward swing speed preset by the controller; when the swing bracket is in an upward swing deceleration state, the controller can control the magnetic generator to apply a repulsive force or an attractive force compensation, so that the swing bracket can maintain a upward swing speed preset by the controller.

2. The magnetic force control method according to claim 1, characterized in that: Under the action of external force, the swing bracket can obtain an initial kinetic energy of swing. When the initial kinetic energy pushes the swing bracket to generate an initial speed of swing, the controller can judge the speed of the swing bracket passing at least one sensor, and make a judgment with the controller in the speed range preset by the corresponding at least one sensor. When the speed of the swing bracket passing at least one sensor is greater than the preset speed range, the controller controls the magnetic generator to stop magnetic compensation; when the speed of the swing bracket decays to the speed range preset by the controller, the controller controls the magnetic generator to perform magnetic compensation, and pushes the swing bracket to continue shaking in the direction of inertia.

3. The magnetic force control method according to claim 1, characterized in that: The swinging stroke of the swing bracket is equipped with sensors, and a magnetic generator is set at the corresponding position of each sensor. The control can compare the real-time status of each sensor passed by the swing bracket with the speed range preset by the controller at all times. The controller can adjust the magnetic compensation opening and closing or size of the magnetic generator in real time.

4. The magnetic force control method according to claim 1, characterized in that: The swing bracket is provided with a pressure sensor for detecting the user's weight. The controller presets a target pressure value. When the pressure information received by the controller from the pressure sensor is lower than the target pressure value, the controller determines that no one is riding on the swing bracket and controls the magnetic generator to stop performing magnetic compensation on the swing bracket; when the pressure information received by the controller from the pressure sensor exceeds the target pressure value, the controller controls the magnetic generator to perform magnetic compensation on the swing bracket.

5. The magnetic force control method according to claim 2, characterized in that: The controller includes at least one user input, so that the user can adjust the preset speed range through the at least one user input, thereby adjusting the swing speed or swing amplitude of the swing bracket.

6. A magnetic control device for automatic shaking of furniture, characterized in that: include: A fixed bracket, the fixed bracket is used to support on the ground; A swing bracket, the swing bracket is used to be connected to a seat cushion for a human body to sit on; at least one rocker member, one end of the at least one rocker member being rotatably connected to the top of the fixed bracket; The other end of the at least one rocker member is rotatably connected to the rocking bracket; the rocking bracket can be suspended on the ground; A magnetic force generating component is connected to the fixed bracket, and / or the magnetic force generating component is connected to the swing bracket, and the magnetic force generating component can drive the swing bracket to swing relative to the fixed bracket.

7. The magnetic force control device according to claim 6, characterized in that: The magnetic force generating assembly comprises: at least one sensor, wherein the at least one sensor is disposed on the fixed bracket or the swing bracket; A swing position sensing pointer, the swing position sensing pointer is arranged on the swing bracket or the fixed bracket; the swing position sensing pointer is adapted to the sensing end of the at least one sensor, and the at least one sensor can identify the position passed by the swing position sensing pointer; A controller, the controller being electrically connected to the at least one sensor; the controller being capable of receiving sensing information of the at least one sensor triggered by the swing position sensing pointer, and determining the swing position of the swing bracket; A magnetic generator, wherein the magnetic generator is electrically connected to the controller, and the controller can sense the movement position of the swing bracket according to the sensing information of the at least one sensor, control the magnetic generator to generate mutual repulsion, attraction or shut down the magnetic force, and can drive the swing bracket to swing relative to the fixed bracket.

8. The magnetic force control device according to claim 7, characterized in that: The magnetic force generator comprises a first magnetic force generating end, the first magnetic force generating end is connected to the fixed bracket, and the magnetic force generated by the magnetic force generating assembly can act on the swing bracket, and can drive the swing bracket to swing relative to the fixed bracket; And / or the magnetic force generating component includes a second magnetic force generating end, which is connected to the swing bracket. The magnetic force generated by the second magnetic force generating end can act on the fixed bracket or the first magnetic force generating end, and can drive the swing bracket to swing relative to the fixed bracket.

9. The magnetic force control device according to claim 7, characterized in that: It includes at least one control button electrically connected to the controller, and the user can adjust the speed range preset by the controller through the at least one control button, thereby adjusting the swing speed or swing amplitude of the swing bracket.

10. The magnetic force control device according to claim 7, characterized in that: The magnetic force generating component includes a pressure sensor, which is electrically connected to the controller. The pressure sensor can detect the user's weight information and transmit the weight information to the controller.

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