CN220307192U - Circuit structure for eye beautifying instrument - Google Patents

Abstract

The utility model provides a circuit structure for an eye-beautifying instrument, which has the technical scheme that: the power supply circuit is electrically connected with the main control chip, the RF generation circuit and the EMS driving circuit are respectively provided with two output ends of EMS_AOUT and EMS_BOUT, the EMS_BOUT output ends in the RF generation circuit and the EMS driving circuit are electrically connected with a B-end switching circuit for switching radio frequency output or micro current output, and the EMS_AOUT output ends in the RF generation circuit and the EMS driving circuit and the output ends of the B-end switching circuit are electrically connected with a radio frequency guide head interface; the utility model combines the effects of micro-current pulse and radio frequency pulse, realizes the high-frequency switching control of radio frequency output and micro-current output, and enables the micro-current pulse and the radio frequency pulse to safely act on eyes.

Description

Circuit structure for eye beautifying instrument

[ field of technology ]

The utility model relates to the field of eye beautifying instruments, in particular to a circuit structure for an eye beautifying instrument.

[ background Art ]

In the medical and cosmetic field, a microcurrent function and a radio frequency function are commonly used in a cosmetic instrument, and microcurrent pulses generated by the microcurrent function are known to stimulate skin cells so as to tighten skin; the radio frequency pulse generated by the radio frequency function has the effects of warming skin and promoting skin cell metabolism; when the micro-current function is applied to the eye beautifying instrument, eye acupuncture points can be stimulated through micro-current pulses, so that eye fatigue is relieved, and when the radio frequency function is applied to the eye beautifying instrument, skin cell metabolism can be promoted through radio frequency pulses, and dark eye circles are relieved or eliminated.

However, the radio frequency circuit in the beauty instrument often adopts the transformer to produce radio frequency pulse, and the volume of transformer is great, and the radio frequency pulse power of production is higher, is unsuitable to be applied to in the beauty instrument, and near the eyes nerve cell of human body is more developed, when using little current function alone, has the stinging sense, needs to combine the radio frequency function to switch the use to promote the use experience.

In order to solve the above-mentioned defects, the present utility model has developed a circuit structure for an eye-beautifying apparatus.

[ utility model ]

In order to combine the effects of micro-current pulse and radio-frequency pulse and realize the switching control of radio-frequency output and micro-current output so that the micro-current pulse and the micro-current output can act on eyes, the utility model develops a circuit structure for an eye-beautifying instrument.

In order to solve the problems, the utility model provides the following technical scheme:

a circuit structure for an eye-beautifying instrument, characterized in that: the power supply circuit is electrically connected with the main control chip, the RF generation circuit and the EMS driving circuit are both provided with two output ends of EMS_AOUT and EMS_BOUT, the EMS_BOUT output ends in the RF generation circuit and the EMS driving circuit are electrically connected with a B-end switching circuit for switching radio frequency output or micro current output, and the EMS_AOUT output ends in the RF generation circuit and the EMS driving circuit and the output end EMS_BOUT of the B-end switching circuit are electrically connected with a radio frequency lead interface.

The circuit structure for the eye beautifying instrument is characterized in that: the radio frequency lead interface is provided with an EMS_AOUT and an EMS_BOUT, the EMS_AOUT output ends of the RF generating circuit and the EMS driving circuit are directly and electrically connected with the EMS_AOUT input port of the radio frequency lead interface, and the EMS_BOUT output ends of the RF generating circuit and the EMS driving circuit are respectively and electrically connected with the EMS_BOUT input end of the B-end switching circuit and the EMS_BOUT input port of the radio frequency lead interface.

The circuit structure for the eye beautifying instrument is characterized in that: the power supply input ends of the RF generation circuit and the EMS drive circuit are respectively provided with an RF power supply switching circuit and an EMS power supply switching circuit which are used for preventing two functions from interfering each other when the B-end switching circuit works, the input ends V_RF/EMS of the RF power supply switching circuit and the EMS power supply switching circuit are electrically connected with the output ends V_RF/EMS of the power supply circuit, the control signal input end RF_VDD_EN of the RF power supply switching circuit is electrically connected with a pin 21 of the main control chip, the control signal input end EMS_V_EN of the EMS power supply switching circuit is electrically connected with a pin 18 of the main control chip, the output end RF_VDD of the RF power supply switching circuit is electrically connected with the RF generation circuit, and the output end HV of the EMS power supply switching circuit is electrically connected with the EMS drive circuit.

The circuit structure for the eye beautifying instrument is characterized in that: the RF generating circuit comprises an oscillating circuit which consists of an inductor and a capacitor and is used for generating high-frequency radio frequency pulses and an MOS tube used for controlling output frequency, a control signal input end RF_PWM formed after a grid electrode G of the MOS tube is connected with a resistor in series is electrically connected with a pin 15 of the main control chip, and a drain electrode D of the MOS tube is electrically connected with the oscillating circuit.

The circuit structure for the eye beautifying instrument is characterized in that: the RF generating circuit further comprises a sampling circuit for detecting the working state of the eye beautifying instrument, the input end of the sampling circuit is electrically connected with the source electrode S of the MOS tube, and the output end RF_PWM_I of the sampling circuit is electrically connected with the pin 11 of the main control chip.

The circuit structure for the eye beautifying instrument is characterized in that: the power input end RF_VDD of the B-end switching circuit is electrically connected with the output end RF_VDD of the RF power switching circuit, and the control signal input end RF_EMS_IO of the B-end switching circuit is electrically connected with the pin 19 of the main control chip.

The circuit structure for the eye beautifying instrument is characterized in that: the power supply circuit comprises a boost chip, a FB pin of the boost chip is electrically connected with a gear adjusting circuit for adjusting output voltage to form multi-gear voltage control output, the gear adjusting circuit is formed by connecting a plurality of resistors with different resistance values in parallel, and the gear adjusting circuit is electrically connected with the main control chip.

Compared with the prior art, the utility model has the following advantages:

the circuit structure for the eye beautifying instrument is provided with the RF generating circuit and the EMS driving circuit, can respectively generate radio frequency pulses and micro-current pulses, is led out from the radio frequency guide head interface, and alternately switches the two functions through the B-end switching circuit, the RF power switching circuit and the EMS power switching circuit so as to circularly output, thereby avoiding the stinging feeling caused by long-time output of the micro-current pulses, and playing a role in promoting skin cell metabolism, relieving or eliminating dark eye circles, stimulating eye acupoints and relieving eye fatigue when acting on eyes; compared with the existing radio frequency circuit adopting a transformer, the RF generating circuit adopts the LC oscillating circuit to convert radio frequency pulses, so that the volume of the eye beautifying instrument can be reduced, the output power is smaller, and the safety of eyes can be ensured while the radio frequency effect is ensured.

[ description of the drawings ]

FIG. 1 is a block diagram of the circuit configuration;

FIG. 2 is a schematic circuit diagram of a power supply circuit and a gear adjustment circuit;

FIG. 3 is a schematic circuit diagram of a master control chip;

FIG. 4 is a circuit schematic of the RF generation circuit and RF power switching circuit;

FIG. 5 is a circuit schematic of an EMS driver circuit and an EMS power switching circuit;

FIG. 6 is a schematic circuit diagram of a B-side switching circuit;

FIG. 7 is a schematic circuit diagram of a radio frequency header interface;

in the figure: 1 is a power supply circuit; 2 is a main control chip; 3 is an RF generation circuit; 4 is an EMS driving circuit; 5 is a B-side switching circuit; 6 is a radio frequency guide head interface; 7 is an RF power supply switching circuit; 8 is EMS power supply switching circuit; 9 is a sampling circuit; 10 is a boost chip; and 11 is a gear adjusting circuit.

[ detailed description ] of the utility model

The technical features of the present utility model are described in further detail below with reference to the accompanying drawings so that those skilled in the art can understand the features.

The circuit structure for the eye-care instrument comprises a power supply circuit 1 for supplying power, an RF generating circuit 3 for generating radio frequency pulses, an EMS driving circuit 4 for generating micro-current pulses and a main control chip 2 for controlling the operation of the whole circuit system, wherein the power supply circuit 1 is electrically connected with the main control chip 2, the RF generating circuit 3 and the EMS driving circuit 4 are respectively provided with two output ends of EMS_AOUT and EMS_BOUT, the EMS_BOUT output ends in the RF generating circuit 3 and the EMS driving circuit 4 are electrically connected with a B end switching circuit 5 for switching radio frequency output or micro-current output, the EMS_AOUT output ends in the RF generating circuit 3 and the EMS driving circuit 4 are commonly connected with the B end switching circuit 5, and can also play a role of function switching, and the EMS_AOUT output ends in the RF generating circuit 3 and the EMS driving circuit 4 and the output end switching circuit 5 are electrically connected with an EMS_BOUT interface 6; the RF generating circuit 3 and the EMS driving circuit 4 can respectively generate radio frequency pulses and micro-current pulses, the radio frequency pulses and the micro-current pulses are led out from the radio frequency guide head interface 6, and the two functions are alternately switched through the B-end switching circuit 5, the RF power supply switching circuit 7 and the EMS power supply switching circuit 8, so that circulation output is carried out, the pain caused by long-time output of the micro-current pulses is avoided, and the effects of promoting metabolism of skin cells, relieving or eliminating dark circles, stimulating eye acupoints and relieving eye fatigue are achieved when the micro-current pulses act on eyes.

Specifically, the RF header interface 6 is provided with two input ports, namely an ems_aout and an ems_bout, the ems_aout output ends in the RF generating circuit 3 and the EMS driving circuit 4 are directly and electrically connected with the ems_aout input port of the RF header interface 6, and the ems_bout output ends in the RF generating circuit 3 and the EMS driving circuit 4 are respectively and electrically connected with the ems_bout input end in the B-terminal switching circuit 5 and the ems_bout input port of the RF header interface 6;

the EMS_AOUT output end in the RF generation circuit 3 outputs radio frequency pulses, and the RF generation circuit 3 can form a complete working loop only when the EMS_BOUT output end in the RF generation circuit 3 is grounded, and the EMS_AOUT output end and the EMS_BOUT output end in the EMS drive circuit 4 are micro-current output ports, and the EMS drive circuit 4 is formed by two symmetrical half-H bridge circuits, so that the EMS_AOUT output end or the EMS_BOUT output end is not required to be grounded, and micro-current pulses are output from the EMS_AOUT output end and the EMS_BOUT output end;

therefore, when the main control chip 2 switches to the RF generating circuit 3 to work, the MOS transistor in the RF power switching circuit 7 is controlled to be turned on, and the MOS transistor in the EMS power switching circuit 8 is controlled to be turned off, at this time, the RF generating circuit 3 starts to work, the EMS driving circuit 4 does not work, meanwhile, the rf_vdd port in the B-terminal switching circuit 5 is connected to the power supply to start to work, and at the same time, the pin 19 of the main control chip 2 outputs a high level signal to the rf_ems_io port in the B-terminal switching circuit 5, so that the MOS transistor in the B-terminal switching circuit 5 is turned on, and the ems_bout output terminal of the RF generating circuit 3 is grounded to form a complete working loop;

when the main control chip 2 switches to the operation of the EMS driving circuit 4, the MOS transistor in the EMS power switching circuit 8 is controlled to be turned on, and the MOS transistor in the RF power switching circuit 7 is controlled to be turned off, at this time, the EMS driving circuit 4 starts to operate, the RF generating circuit 3 does not operate, meanwhile, the rf_vdd port in the B-terminal switching circuit 5 has no power access, the B-terminal switching circuit 5 does not operate, meanwhile, the pin 19 of the main control chip 2 outputs a low level signal to the rf_ems_io port in the B-terminal switching circuit 5, the MOS transistor in the B-terminal switching circuit 5 is in an off state, and the ems_bout output end in the EMS driving circuit 4 is turned on with the ems_bout input port in the radio frequency guide interface 6, so that the micro current pulse generated by the EMS driving circuit 4 is normally output from the radio frequency guide interface 6.

Specifically, the power supply input ends of the RF generating circuit 3 and the EMS driving circuit 4 are respectively provided with an RF power supply switching circuit 7 and an EMS power supply switching circuit 8 for preventing two functions of the B-side switching circuit 5 from interfering with each other during operation, the input ends v_rf/EMS of the RF power supply switching circuit 7 and the EMS power supply switching circuit 8 are electrically connected with the output end v_rf/EMS of the power supply circuit 1, the control signal input end rf_vdd_en of the RF power supply switching circuit 7 is electrically connected with the pin 21 of the main control chip 2, the control signal input end ems_v_en of the EMS power supply switching circuit 8 is electrically connected with the pin 18 of the main control chip 2, the output end rf_vdd of the RF power supply switching circuit 7 is electrically connected with the RF generating circuit 3, and the output end HV of the EMS power supply switching circuit 8 is electrically connected with the EMS driving circuit 4; when the RF generating circuit 3 works, the pin 21 of the main control chip 2 outputs a high-level signal to the control signal input end rf_vdd_en in the RF power switching circuit 7, so that the MOS transistor in the RF power switching circuit 7 is turned on, the RF generating circuit 3 is powered on, and meanwhile, the pin 18 of the main control chip 2 outputs a low-level signal to the control signal input end ems_v_en in the EMS power switching circuit 8, so that the MOS transistor in the EMS power switching circuit 8 is turned off, and the EMS driving circuit 4 is powered off; similarly, when the EMS driving circuit 4 works, the MOS transistor in the EMS power switching circuit 8 is turned on, the EMS driving circuit 4 is powered on, the MOS transistor in the RF power switching circuit 7 is turned off, and the RF generating circuit 3 is powered off.

In addition, the RF generating circuit 3 includes an oscillating circuit composed of an inductor and a capacitor for generating high-frequency radio frequency pulses and an MOS tube for controlling output frequency, a control signal input end rf_pwm formed by connecting a gate G of the MOS tube in series with a resistor is electrically connected with the pin 15 of the main control chip 2, and a drain D of the MOS tube is electrically connected with the oscillating circuit; the main control chip 2 can control the frequency of the RF pulse output by the RF generation circuit 3 through the pin 15 and the control signal input end RF_PWM, compared with the existing RF circuit adopting a transformer, the RF generation circuit 3 adopts an LC oscillating circuit to convert the RF pulse, the volume of the eye beautifying instrument can be reduced, the output power is smaller, and the safety of eyes can be ensured while the RF effect is ensured.

In addition, the RF generating circuit 3 further includes a sampling circuit 9 for detecting the working state of the eye-beautifying device, the input end of the sampling circuit 9 is electrically connected with the source S of the MOS tube, the output end rf_pwm_i of the sampling circuit 9 is electrically connected with the pin 11 of the main control chip 2, and the sampling circuit 9 and the main control chip 2 are combined to detect that the eye-beautifying device is in the eye working state or the static placement state, so as to intelligently adjust the output power of the eye-beautifying device, and simultaneously form a short circuit protection mechanism in the running process to prevent the short circuit of the radio frequency guide interface 6 from damaging the circuit; the human skin has certain resistance, can be as the load in the circuit, and the load is different with the empty time after the eye-beautifying appearance laminating skin, consequently, can detect the service condition of eye-beautifying appearance through sampling circuit 9, when the eye-beautifying appearance is in the service condition, RF production circuit 3 can normally export, simultaneously, sampling circuit 9 can be to in the course of the work RF production circuit 3 carries out short-circuit protection, when the eye-beautifying appearance is in the empty state, RF production circuit 3 can pass through the whole circuit low-power operation of main control chip 2 control.

Specifically, the power input end rf_vdd of the B-terminal switching circuit 5 is electrically connected to the output end rf_vdd of the RF power switching circuit 7, the control signal input end rf_ems_io of the B-terminal switching circuit 5 is electrically connected to the pin 19 of the main control chip 2, and the B-terminal switching circuit 5 is mainly used for controlling the paths of the operation loops of the RF generating circuit 3 and the EMS driving circuit 4; when the RF generating circuit 3 works, the pin 19 of the main control chip 2 outputs a high-level signal to control the MOS transistor in the B-terminal switching circuit 5 to be turned on, so that the RF header interface 6 and the ems_bout in the RF generating circuit 3 are grounded, and the RF generating circuit 3 forms a complete loop and can normally operate; when the EMS driving circuit 4 works, the pin 19 of the main control chip 2 outputs a low-level signal, and controls the MOS transistor in the B-terminal switching circuit 5 to be turned off, so that the radio frequency header interface 6 and the ems_bout in the EMS driving circuit 4 are turned on, and the EMS driving circuit 4 forms a complete loop, so that normal operation can be achieved.

Specifically, the power supply circuit 1 includes a boost chip 10, an FB pin of the boost chip 10 is electrically connected with a gear adjusting circuit 11 for adjusting an output voltage to form a multi-gear voltage control output, the gear adjusting circuit 11 is formed by connecting a plurality of resistors with different resistance values in parallel, the gear adjusting circuit 11 is electrically connected with the main control chip 2, the gear adjusting circuit 11 is connected with the resistors with different resistance values through a control signal output by the main control chip 2, so as to divide a voltage output by the boost chip 10, so that the gear adjusting circuit 11 can regulate and control the voltage output to the RF generating circuit 3 and the EMS driving circuit 4, and then perform gear adjustment on the output power of the RF generating circuit 3 and the EMS driving circuit 4.

The embodiments of the present utility model are described only for the preferred embodiments of the present utility model, and are not limited to the precise structures that have been described above and shown in the drawings, and various modifications and changes may be made without departing from the scope thereof, and various modifications and improvements made by those skilled in the art to the technical solutions of the present utility model should be included in the scope of the present utility model without departing from the design concept of the present utility model.

Claims (7)

1. A circuit structure for an eye-beautifying instrument, characterized in that: the power supply circuit (1) is electrically connected with the main control chip (2), the RF generation circuit (3) and the EMS driving circuit (4), two output ends of EMS_AOUT and EMS_BOUT are respectively arranged on the RF generation circuit (3) and the EMS driving circuit (4), an EMS_BOUT output end in the RF generation circuit (3) and the EMS driving circuit (4) is electrically connected with a B-end switching circuit (5) for switching radio frequency output or micro current output, and an EMS_AOUT output end in the RF generation circuit (3) and the EMS driving circuit (4) and an output end_BOUT of the B-end switching circuit (5) are electrically connected with a radio frequency pilot interface (6).

2. The circuit structure for an eye-beautifying apparatus according to claim 1, wherein: the RF lead interface (6) is provided with an EMS_AOUT and an EMS_BOUT, the EMS_AOUT output ends in the RF generation circuit (3) and the EMS drive circuit (4) are directly and electrically connected with the EMS_AOUT input port of the RF lead interface (6), and the EMS_BOUT output ends in the RF generation circuit (3) and the EMS drive circuit (4) are respectively and electrically connected with the EMS_BOUT input end in the B-end switching circuit (5) and the EMS_BOUT input port of the RF lead interface (6).

3. The circuit structure for an eye-beautifying apparatus according to claim 2, wherein: the power supply input ends of the RF generation circuit (3) and the EMS driving circuit (4) are respectively provided with an RF power supply switching circuit (7) and an EMS power supply switching circuit (8) which are used for preventing two functions from interfering each other when the B-end switching circuit (5) works, the input ends V_RF/EMS of the RF power supply switching circuit (7) and the EMS power supply switching circuit (8) are electrically connected with the output end V_RF/EMS of the power supply circuit (1), the control signal input end RF_VDD_EN of the RF power supply switching circuit (7) is electrically connected with the pin 21 of the main control chip (2), the control signal input end V_EN of the EMS power supply switching circuit (8) is electrically connected with the pin 18 of the main control chip (2), the output end RF_VDD of the RF power supply switching circuit (7) is electrically connected with the RF generation circuit (3), and the output end HV of the power supply switching circuit (8) is electrically connected with the EMS driving circuit (4).

4. A circuit configuration for an eye-beautifying apparatus according to claim 3, wherein: the RF generating circuit (3) comprises an oscillating circuit which consists of an inductor and a capacitor and is used for generating high-frequency radio frequency pulses and an MOS tube used for controlling output frequency, a control signal input end RF_PWM formed after a grid electrode G of the MOS tube is connected in series with a resistor is electrically connected with a pin 15 of the main control chip (2), and a drain electrode D of the MOS tube is electrically connected with the oscillating circuit.

5. The circuit structure for an eye-beautifying apparatus according to claim 4, wherein: the RF generating circuit (3) further comprises a sampling circuit (9) for detecting the working state of the eye-beautifying instrument, the input end of the sampling circuit (9) is electrically connected with the source electrode S of the MOS tube, and the output end RF_PWM_I of the sampling circuit (9) is electrically connected with the pin 11 of the main control chip (2).

6. The circuit structure for an eye-beautifying apparatus according to any one of claims 3 to 5, wherein: the power input end RF_VDD of the B-end switching circuit (5) is electrically connected with the output end RF_VDD of the RF power switching circuit (7), and the control signal input end RF_EMS_IO of the B-end switching circuit (5) is electrically connected with the pin 19 of the main control chip (2).

7. The circuit structure for an eye-beautifying apparatus according to any one of claims 1 to 5, wherein: the power supply circuit (1) comprises a boost chip (10), a FB pin of the boost chip (10) is electrically connected with a gear adjusting circuit (11) for adjusting output voltage to form multi-gear voltage control output, the gear adjusting circuit (11) is formed by connecting a plurality of resistors with different resistance values in parallel, and the gear adjusting circuit (11) is electrically connected with the main control chip (2).