阅读说明：本技术 无线旋钮控制器、旋钮及底座 (Wireless knob controller, knob and base ) 是由 周立功 范攀锋 白金龙 于 2019-08-30 设计创作，主要内容包括：本发明涉及一种无线旋钮控制器、旋钮及底座,设置有相互独立的旋钮和底座,旋钮设置有旋钮壳体,底座设置有底座壳体。角运动检测模块根据旋钮壳体的旋转角度获得的传感信号,在被调制电路调制成调制电信号后可通过第一线圈与第二线圈之间的耦合进行信息传递,无需设置任何开孔,有利于清洁维护和降低三防设计难度。同时,通过角运动检测模块检测旋钮的旋转角度,提高旋钮控制器的使用寿命和控制精度。(the invention relates to a wireless knob controller, a knob and a base. The angular motion detection module can transmit information through the coupling between the first coil and the second coil after being modulated into a modulation electric signal by the modulation circuit according to a sensing signal obtained by the rotation angle of the knob shell, and no opening is required to be formed, so that the cleaning maintenance is facilitated, and the three-prevention design difficulty is reduced. Meanwhile, the rotation angle of the knob is detected through the angular motion detection module, so that the service life of the knob controller is prolonged, and the control precision of the knob controller is improved.)

1. a wireless knob controller is characterized by comprising a knob and a base;

The knob comprises a knob shell, a first coil, an angular motion detection module and a first in-band communication circuit, wherein the first coil, the angular motion detection module and the first in-band communication circuit are arranged in the knob shell;

The base comprises a base shell, a second coil and a second in-band communication circuit, wherein the second coil and the second in-band communication circuit are arranged in the base shell; the base shell and the knob shell are oppositely arranged;

the angular motion detection module is used for obtaining a sensing signal according to the rotation angle of the knob shell and outputting the sensing signal to the first in-band communication circuit;

The first in-band communication circuit is used for generating a modulation electric signal according to the sensing signal and loading the modulation electric signal to two ends of the first coil;

The second coil is used for generating an induced alternating current signal according to the coupling between the first coil and the second coil;

the second in-band communication circuit is used for generating demodulation data according to the induction alternating current signal; wherein the demodulated data is used to adjust a controlled device.

2. the wireless knob controller according to claim 1 wherein the first in-band communication circuit comprises a load modulation circuit;

The load modulation circuit is used for accessing the sensing signal, generating the modulation electric signal according to the sensing signal and loading the modulation electric signal to two ends of the first coil.

3. The wireless knob controller according to claim 2 wherein the first in-band communication circuit further comprises a demodulation circuit;

the demodulation circuit is used for demodulating the frequency modulation signal sensed by the first coil.

4. the wireless knob controller according to claim 1 wherein the second in-band communication circuit comprises a resonant circuit;

the resonant circuit is used for generating demodulation data according to the induction alternating current signal.

5. the wireless knob controller according to claim 4 wherein the second in-band communication circuit further comprises an inverter circuit;

The inverter circuit is used for converting the power supply of the power supply source into an alternating current signal and loading the alternating current signal to the second coil.

6. The wireless knob controller according to claim 4 wherein the resonant circuit comprises an LC series resonant circuit or an LC parallel resonant circuit.

7. the wireless knob controller according to claim 4, wherein a power supply circuit is further provided within the knob housing;

the power supply circuit is used for converting the voltage at two ends of the first coil into power supply voltage according to the coupling of the first coil and the second coil; wherein the supply voltage is used to power modules and circuitry disposed within the knob housing.

8. The wireless knob controller according to claim 1, wherein a first magnet is further disposed within the knob housing, and a second magnet is further disposed within the base housing;

The bottom of the knob shell is adsorbed on the surface of the base shell through the mutual attraction of the first magnet and the second magnet.

9. the wireless knob controller according to claim 1, further comprising an information prompt module;

The information prompt module is arranged outside the knob shell and used for obtaining information prompt according to the sensing signal.

10. the wireless knob controller according to claim 9, wherein the information prompt module includes a display screen;

The display screen is arranged on the top of the knob shell.

11. The wireless knob controller according to any one of claims 1 to 10 wherein the angular motion detection module comprises a gyro sensor or an inertial sensor.

12. a knob, comprising a knob housing, and a first coil, an angular motion detection module and a first in-band communication circuit disposed within the knob housing;

The angular motion detection module is used for obtaining a sensing signal according to the rotation angle of the knob shell and outputting the sensing signal to the first in-band communication circuit;

the first in-band communication circuit is used for generating a modulation electric signal according to the sensing signal and loading the modulation electric signal to two ends of the first coil;

the first coil is used for being coupled with a second coil of the base and transmitting a modulation electric signal to the second coil.

13. a base is characterized by comprising a base shell, a second coil and a second in-band communication circuit, wherein the second coil and the second in-band communication circuit are arranged in the base shell;

the second coil is used for being coupled with the first coil of the knob to generate an induction alternating current signal;

the second in-band communication circuit is used for generating demodulation data according to the induction alternating current signal; wherein the demodulated data is used to adjust a controlled device.

Technical Field

The invention relates to the technical field of electronic products, in particular to a wireless knob controller, a knob and a base.

Background

Switch control is an important component in electronic products. Taking a knob controller in a switch as an example, the knob controller is an indispensable switch adjusting mechanism in many electronic products, such as household electrical appliances.

a potentiometer is arranged in a traditional knob controller, and the working principle of the traditional knob controller is that the resistance value of the potentiometer is changed by rotating the potentiometer, so that the rotating amplitude is sensed, and the controlled device is adjusted. In a specific structure, the knob controller is directly connected with the variable resistance adjusting rod through the knob cover, so that a through hole for penetrating through the variable resistance adjusting rod must be formed, the three-prevention design difficulty of the knob controller is high, dirt is easy to corrode, and cleaning and maintenance are inconvenient. Meanwhile, a potentiometer inside the knob controller is easy to wear, and the service life and the control precision of the knob controller are influenced.

In summary, the conventional knob controller has the above-mentioned drawbacks.

Disclosure of Invention

In view of the above, it is necessary to provide a wireless knob controller, a knob and a base for overcoming the drawbacks of the conventional knob controller.

A wireless knob controller comprises a knob and a base;

The knob comprises a knob shell, a first coil, an angular motion detection module and a first in-band communication circuit, wherein the first coil, the angular motion detection module and the first in-band communication circuit are arranged in the knob shell;

The base comprises a base shell, a second coil and a second in-band communication circuit, wherein the second coil and the second in-band communication circuit are arranged in the base shell; the base shell is also used for placing the knob shell;

The angular motion detection module is used for obtaining a sensing signal according to the rotation angle of the knob shell and outputting the sensing signal to the first in-band communication circuit;

The first in-band communication circuit is used for generating a modulation electric signal according to the sensing signal and loading the modulation electric signal to two ends of the first coil;

The second coil is used for generating an induced alternating current signal according to the coupling between the first coil and the second coil;

The second in-band communication circuit is used for generating demodulation data according to the induction alternating current signal; wherein the demodulated data is used to adjust the controlled device.

the wireless knob controller is provided with a knob and a base which are mutually independent, the knob is provided with a knob shell, and the base is provided with a base shell. The angular motion detection module can transmit information through the coupling between the first coil and the second coil after being modulated into a modulation electric signal by the first in-band communication circuit according to a sensing signal obtained by the rotation angle of the knob shell, and no opening is required to be formed, so that the cleaning maintenance and the reduction of the three-prevention design difficulty are facilitated. Meanwhile, the rotation angle of the knob is detected through the angular motion detection module, so that the service life of the knob controller is prolonged, and the control precision of the knob controller is improved.

In one embodiment, the first in-band communication circuit comprises a load modulation circuit;

The load modulation circuit is used for accessing the sensing signal, generating a modulation electric signal according to the sensing signal and loading the modulation electric signal to two ends of the first coil.

in one embodiment, the first in-band communication circuit further comprises a demodulation circuit;

The demodulation circuit is used for demodulating the frequency modulation signal sensed by the first coil.

In one embodiment, the second in-band communication circuit comprises a resonant circuit;

the resonant circuit is used for generating demodulation data according to the induction alternating current signal.

In one embodiment, the second in-band communication circuit further comprises an inverter circuit;

The inverter circuit is used for converting the power supply of the power supply into an alternating current signal and loading the alternating current signal to the second coil.

In one embodiment, the inverter circuit includes a half-bridge inverter circuit or a full-bridge inverter circuit.

In one embodiment, the resonant circuit comprises an LC series resonant circuit or an LC parallel resonant circuit.

in one embodiment, a power supply circuit is further arranged in the knob shell;

the power supply circuit is used for converting the voltage at two ends of the first coil into power supply voltage according to the coupling of the first coil and the second coil; wherein the supply voltage is used to power the module and circuitry disposed within the knob housing.

in one embodiment, a first magnet is further arranged in the knob shell, and a second magnet is further arranged in the base shell;

the bottom of the knob shell is adsorbed on the surface of the base shell through the mutual attraction of the first magnet and the second magnet.

in one embodiment, the system further comprises an information prompt module;

the information prompt module is arranged outside the knob shell and used for obtaining information prompt according to the sensing signals.

in one embodiment, the information prompt module comprises a display screen;

The display screen is arranged on the top of the knob shell.

In one embodiment, the information prompt module comprises an LED;

The LED is arranged on the top of the knob shell.

In one embodiment, the device further comprises a dark color filter lens;

the dark color filter lens is used for covering the information prompting module.

in one embodiment, the angular motion detection module comprises a gyroscope sensor or an inertial sensor.

A knob comprising a knob housing, and a first coil, an angular motion detection module and a first in-band communication circuit disposed within the knob housing;

The angular motion detection module is used for obtaining a sensing signal according to the rotation angle of the knob shell and outputting the sensing signal to the first in-band communication circuit;

The first in-band communication circuit is used for generating a modulation electric signal according to the sensing signal and loading the modulation electric signal to two ends of the first coil;

The first coil is used for being coupled with a second coil of the base and transmitting a modulation electric signal to the second coil.

A base comprising a base housing, and a second coil and a second in-band communication circuit disposed within the base housing;

The second coil is used for being coupled with the first coil of the knob to generate an induction alternating current signal;

The second in-band communication circuit is used for generating demodulation data according to the induction alternating current signal; wherein the demodulated data is used to adjust a controlled device.

drawings

FIG. 1 is a cross-sectional view of a wireless knob controller configuration according to one embodiment;

FIG. 2 is a schematic diagram of a wireless power transmission principle;

FIG. 3 is a waveform diagram of signal modulation according to an embodiment;

fig. 4 is a waveform diagram of signal modulation according to another embodiment.

Detailed Description

for better understanding of the objects, technical solutions and effects of the present invention, the present invention will be further explained with reference to the accompanying drawings and examples. Meanwhile, the following described examples are only for explaining the present invention, and are not intended to limit the present invention.

FIG. 1 is a cross-sectional view of an embodiment of a wireless knob controller, as shown in FIG. 1, the embodiment of the wireless knob controller includes a knob A and a base B;

The knob A comprises a knob shell 1, a first coil 5, an angular motion detection module 10 and a first in-band communication circuit, wherein the first coil 5, the angular motion detection module 10 and the first in-band communication circuit are arranged in the knob shell 1;

In one embodiment, the knob housing 1 can be a fully enclosed housing. In one embodiment, the knob housing 1 is made of a non-conductive material to avoid the influence of the coupling between the first coil 5 and the second coil 6. Meanwhile, in order to facilitate the rotation of the knob housing 1, the knob housing 1 may be a cylindrical housing or a circular truncated cone housing. As a preferred embodiment, as shown in fig. 1, the knob housing 1 is a cylindrical housing, which is placed on the base housing 2, and the lower surface of the cylindrical housing is in contact with the base housing 2.

the angular motion detection module 10 is configured to detect a rotation angle of the knob housing 1, and obtain a sensing signal according to the rotation angle of the knob housing 1 when the knob housing 1 rotates. In one embodiment, the angular motion detection module 10 includes a gyroscope sensor and an inertial sensor. As a preferred embodiment, the angular motion detection module 10 is a gyro sensor. As shown in fig. 1, the gyroscope sensor is disposed at the center of the knob housing 1, i.e., on the connection line of the centers of the upper and lower surfaces of the cylindrical housing, which is beneficial to accurately obtaining the rotation angle of the knob housing 1.

As a preferred embodiment, as shown in fig. 1, a first circuit board 7 is provided in the knob housing 1, and the first in-band communication circuit is provided on the first circuit board 7. The first circuit board 7 may further be configured to provide the angular motion detection module 10, so as to facilitate routing between the angular motion detection module 10 and the first in-band communication circuit. In one embodiment, the first circuit board 7 comprises a printed circuit board or a copper plate.

The base B comprises a base shell 2, a second coil 6 and a second in-band communication circuit 8 which are arranged in the base shell 2; the base shell 2 is also used for placing the knob shell 1;

in one embodiment, the base housing 2 may be a fully enclosed housing. In one embodiment, the base housing 2 is made of a non-conductive material to avoid the influence of the coupling between the first coil 5 and the second coil 6. Meanwhile, in order to place the knob shell 1 conveniently, the knob shell 1 can be a cylindrical shell, a circular truncated cone shell, a cuboid shell or a cubic shell and the like.

As a preferred embodiment, as shown in fig. 1, a second circuit board 8 is provided in the base housing 2, and the second in-band communication circuit is provided on the second circuit board 8. The second circuit board 8 may further be configured to provide the second coil 6, so as to facilitate routing between the second coil 6 and the second in-band communication circuit. In one embodiment, the second circuit board 8 comprises a printed circuit board or a copper plate. As a preferred embodiment, the second circuit board 8 is fixed to the base housing 2 by screws 9, as shown in fig. 1.

as a preferred mode, as shown in fig. 1, in the knob housing 1, the first circuit board 7 is disposed above the first coil 5, and the second circuit board 8 is disposed below the second coil 6, so as to avoid the influence of the first circuit board 7 or the second circuit board 8 on the coupling effect between the first coil 5 and the second coil 6.

The angular motion detection module 10 is used for obtaining a sensing signal according to the rotation angle of the knob shell 1 and outputting the sensing signal to the first in-band communication circuit;

The second coil 6 is used for generating an induced alternating current signal according to the coupling between the first coil 5 and the second coil 6;

The second in-band communication circuit is used for generating demodulation data according to the induction alternating current signal; wherein the demodulated data is used to adjust the controlled device.

The first in-band communication circuit is used for generating a modulation electric signal according to the sensing signal and loading the modulation electric signal to two ends of the first coil 5;

The first coil 5 serves as a transmitting end, the second coil 6 serves as a receiving end, and data to be communicated is modulated on the power transmission signal. The voltage on the first coil 5 is transmitted to the second coil 6 through the coupling effect of the first coil 5 and the second coil 6, so that an induced alternating current signal is generated on the second coil 6. The second in-band communication circuit generates demodulated data from the induced alternating current signal.

in one embodiment, the first in-band communication circuit comprises a load modulation circuit; the second in-band communication circuit comprises a resonant circuit;

the load modulation circuit is used for accessing the sensing signal, generating a modulation electric signal according to the control of the modulation controller and loading the modulation electric signal to two ends of the first coil;

The resonant circuit is used for generating demodulation data according to the induction alternating current signal.

In one embodiment, the first in-band communication circuit further comprises a demodulation circuit;

the demodulation circuit is used for demodulating the frequency modulation signal sensed by the first coil.

in one embodiment, the second in-band communication circuit further comprises an inverter circuit;

The inverter circuit is configured to convert power supplied from the power supply source into an ac signal, and load the ac signal to the second coil 6.

In one embodiment, the inverter circuit includes a half-bridge inverter circuit or a full-bridge inverter circuit. The resonance circuit includes an LC series resonance circuit or an LC parallel resonance circuit.

in one embodiment, the demodulation circuit comprises an FSK demodulation chip or an ASK demodulation chip.

fig. 2 is a schematic diagram of a wireless power transmission principle, as shown in fig. 2, the wireless power transmission system includes a second in-band communication circuit 100, an inverter circuit in the second in-band communication circuit 100 is used for inverting the power supplied by the power supply into an ac signal to be applied to the second coil 6, a resonant frequency F ₀ of a resonant circuit in the second in-band communication circuit 100 is 1/2 pi (LC) ^1/2, the resonant frequency is generally controlled in a range from several hundred KHz to several MHz, a PWM frequency of the resonant controller is controlled at a frequency greater than F0, so that a resonant voltage on the second coil 6 is several times greater than an input voltage, and power transmission adjustment is achieved by using a magnetic induction principle in a fixed frequency adjustment or fixed frequency adjustment manner.

in one embodiment, as shown in fig. 2, the load modulation circuit in the first in-band communication circuit 101 changes the equivalent impedance across the first coil 5 by controlling the on/off of the switch according to the sensing signal. The voltage across the second coil 6 is varied by the coupling between the first coil 5 and the second coil 6. Based on this, the voltage across the second coil 6 is changed by the load modulation of the load modulation circuit, so that the second in-band communication circuit can generate demodulated data from the voltage across the second coil 6, thereby realizing data communication.

In one example, fig. 3 is a waveform diagram of signal modulation according to an embodiment, as shown in fig. 3, when the signal modulation is performed between the first in-band communication circuit and the second in-band communication circuit by using the amplitude modulation technique, bi-phase symbol coding may be used for data coding, and the communication rate is controlled to be several tens of Kbps to several hundreds of Kbps. As shown in fig. 3, the second coil 6 serves as a power transmitting terminal, i.e., a TX coil. The low voltage amplitude on the TX coil corresponds to a low level on the demodulated data waveform and the high voltage amplitude on the TX coil corresponds to a high level on the demodulated data waveform. When the duty ratio of the demodulation data waveform in one communication period is 0.5, the demodulation data is '1'; the voltage amplitude of the TX coil corresponds to the demodulation data "0" when the duty ratio of the demodulation data waveform is 0 in one communication cycle.

in one example, fig. 4 is a signal modulation waveform diagram of another embodiment, as shown in fig. 4, when the frequency modulation technique is used for signal communication between the first in-band communication circuit and the second in-band communication circuit, bi-phase symbol encoding can be used for data encoding, and the communication rate is controlled to be several tens of Kbps to several hundreds of Kbps. As shown in fig. 4, the second coil 6 serves as a transmitting terminal, i.e., a TX coil. The high frequency voltage on the TX coil corresponds to a low level on the demodulated data waveform and the low frequency voltage on the TX coil corresponds to a high level on the demodulated data waveform. When the duty ratio of the demodulation data waveform in one communication period is 0.5, the demodulation data is '1'; the voltage amplitude of the TX coil corresponds to the demodulation data "0" when the duty ratio of the demodulation data waveform is 0 in one communication cycle.

The wireless knob controller according to the above embodiment is provided with the knob a and the base B which are independent of each other, the knob a is provided with the knob housing 1, and the base B is provided with the base housing 2. The angular motion detection module 10 can perform information transmission through the coupling between the first coil 5 and the second coil 6 after load modulation is performed by the first in-band communication circuit according to a sensing signal obtained by the rotation angle of the knob housing 1, and does not need to be provided with any opening, thereby being beneficial to cleaning and maintenance and reducing the difficulty of three-prevention design. Meanwhile, the rotation angle of the knob is detected through the angular motion detection module 10, so that the service life of the knob controller is prolonged, and the control precision of the knob controller is improved.

in one embodiment, a power supply circuit is further arranged in the knob shell 1; the power supply circuit is used for converting the voltage at two ends of the first coil 5 into power supply voltage according to the coupling of the first coil 5 and the second coil 6; wherein the supply voltage is used to supply the modules and circuits arranged in the knob housing 1.

The power supply circuit forms a power supply circuit based on wireless power transmission between the first coil 5 and the second coil 6, supplies power to modules and circuits in the knob shell 1, and comprises an angular motion detection module 10, a first in-band communication circuit or other circuit modules and the like.

In one embodiment, as shown in FIG. 1, the power supply circuit may be disposed on the first circuit board 7 as shown in FIG. 1 to facilitate integral routing within the knob housing 1. In one embodiment, the first power supply circuit includes an AC/DC power module.

through first power supply circuit and second power supply circuit for the circuit module of knob casing 1 inside need not external power supply or built-in battery can obtain the power supply, when being convenient for the totally closed integrative design of knob casing 1, is favorable to reducing knob A's cost and whole volume.

in one embodiment, a first magnet is further arranged in the knob shell 1, and a second magnet is further arranged in the base shell;

The bottom of the knob shell is adsorbed on the surface of the base shell 2 through the mutual attraction of the first magnet and the second magnet.

through the mutual attraction of the first magnet and the second magnet, the knob shell 1 is adsorbed on the surface of the base shell 2, so that the knob shell 1 and the relative position between the first coil 5 and the second coil 6 are fixed conveniently.

In one embodiment, as shown in fig. 1, the first magnet 3 and the second magnet 4 are both circular ring magnets with specific sizes and shapes, the first magnet 3 and the second magnet 4 are oppositely arranged, and the polarities of the adjacent surfaces of the first magnet 3 and the second magnet 4 are opposite. By selecting the ring-shaped magnet, the knob housing 1 is stabilized.

In one embodiment, the wireless knob controller further comprises an information prompting module;

the information prompt module is arranged outside the knob shell 1 and used for obtaining information prompt according to the sensing signals.

The information prompting module is used for prompting information and prompting a user to turn the rotation angle of the shell 1 or the adjustment degree of the controlled device.

In one embodiment, the information prompt module comprises a display screen;

the display screen is arranged on the top of the knob shell.

as shown in fig. 1, a display screen 11 is disposed on the upper surface of the knob housing 1 for displaying the sensing signal detected by the angular motion detection module 10 on the display screen 11 in a visual form.

The information prompt module comprises an LED;

The LED is arranged on the top of the knob shell.

As shown in fig. 1, an LED12 is provided on the upper surface of the knob housing 1 for displaying a sensing signal detected by the angular movement detection module 10 on the LED12 in the form of light.

in one embodiment, the wireless knob controller further comprises a dark filter lens;

The dark color filter lens is used for covering the information prompting module.

As shown in fig. 1, the dark filter 13 is disposed above the information prompt module and forms an integral geometric structure with the knob housing 1. When the information prompt module does not show, the user can not see through the inside, can see the prompt message at the information prompt module when the information prompt module shows, can provide the protection for the information prompt module through dark filter lens 13 promptly, prevents that spot such as greasy dirt from influencing the normal work of information prompt module.

The technical features of the above embodiments can be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the above embodiments are not described, but should be considered as the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

the above examples only show some embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.