CN220510798U - Beauty instrument - Google Patents

Abstract

The application provides a beauty instrument, the beauty instrument includes tank circuit, charge management circuit, controller and charge mode switching circuit. The charging management circuit is used for charging the energy storage circuit, detecting the current electric quantity of the energy storage circuit and outputting a corresponding electric quantity detection signal. The charging modes of the charging management circuit include a fast charging mode and a slow charging mode. The controller is electrically connected with the charging management circuit and is used for responding to the electric quantity detection signal output by the charging management circuit and outputting a corresponding charging mode switching signal. The charging mode switching circuit is used for responding to the charging mode switching signal output by the controller and controlling the charging management circuit to charge the energy storage circuit in a corresponding charging mode. According to the cosmetic instrument, according to the difference of the current electric quantity of the energy storage circuit, the charging management circuit is switched between the slow charging mode and the fast charging mode, so that the charging speed can be increased, and the charging safety can be guaranteed.

Description

Beauty instrument

Technical Field

The application relates to the technical field of beauty treatment instruments, in particular to a beauty treatment instrument.

Background

The micro-current beauty instrument can apply computer microwave to human body, supplement bioelectric energy to human body and activate cells, so as to solve some skin problems and delay skin aging. Cosmetic instruments are typically provided with a charging circuit to charge the battery, however, the existing cosmetic instruments have a single charging mode and a slower charging speed, which affects the user experience.

Disclosure of Invention

In view of this, the main aim of this application is to propose the beauty instrument, aim at solving current beauty instrument charge mode singleness, charge speed slower, influence user experience's problem.

To achieve the above object, the present application provides a cosmetic instrument including a tank circuit, a charge management circuit, a controller, and a charge mode switching circuit. The charging management circuit is used for charging the energy storage circuit, detecting the current electric quantity of the energy storage circuit and outputting a corresponding electric quantity detection signal. The charging mode of the charging management circuit comprises a fast charging mode and a slow charging mode. The controller is electrically connected with the charging management circuit, and is used for responding to the electric quantity detection signal output by the charging management circuit and outputting a corresponding charging mode switching signal. The charging mode switching circuit is electrically connected with the charging management circuit and the controller respectively, and is used for responding to the charging mode switching signal output by the controller and controlling the charging management circuit to charge the energy storage circuit in a corresponding charging mode.

The utility model provides a beauty instrument through setting up charge management circuit, controller and charge mode switching circuit, and detect the present electric quantity of tank circuit through charge management circuit, output corresponding electric quantity detection signal, and be used for responding the electric quantity detection signal of charge management circuit output through the controller, output corresponding charge mode switching signal, and respond the charge mode switching signal of controller output through charge mode switching circuit, control charge management circuit charges for the tank circuit with the charge mode who corresponds, so, according to the difference of the present electric quantity of tank circuit, let charge management circuit switch between slow charge mode and fast charge mode, not only can promote charge speed, can also guarantee the security of charging.

Additional aspects and advantages of the application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the application.

Drawings

Fig. 1 is a schematic structural diagram of a cosmetic apparatus according to an embodiment of the present application;

fig. 2 is a circuit configuration diagram of the cosmetic instrument shown in fig. 1.

The reference numerals are explained as follows:

beauty instrument 1

Tank circuit 10

Charging management circuit 20

Controller 30

Charging mode switching circuit 40

Mode switching sub-circuit 41

First resistor R1

Second resistor R2

Third resistor R3

Fourth resistor R4

Switching element Q1

Indication circuit 50

Battery charging management chip U1

Current setting pin CC

Output pin BAT

State of charge pin STAT

First light-emitting element D1

Second light-emitting element D2

Capacitor C

The following detailed description will further illustrate the application in conjunction with the above-described figures.

Detailed Description

The following description of the embodiments of the present application will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all, of the embodiments of the present application. All other embodiments, which can be made by one of ordinary skill in the art based on the embodiments herein without undue burden, are within the scope of the present application.

In the description of the present application, it should be noted that the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. It should also be appreciated that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one embodiment of the present application. Furthermore, the particular features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.

Referring to fig. 1 to 2 together, the present application provides a beauty treatment apparatus 1, wherein the beauty treatment apparatus 1 includes an energy storage circuit 10, a charge management circuit 20, a controller 30, and a charge mode switching circuit 40.

The charge management circuit 20 is configured to charge the tank circuit 10, detect a current power of the tank circuit 10, and output a corresponding power detection signal. The charging modes of the charge management circuit 20 include a fast charging mode and a slow charging mode.

And a controller 30 electrically connected to the charge management circuit 20, wherein the controller 30 is configured to output a corresponding charge mode switching signal in response to the power detection signal output from the charge management circuit 20.

And a charging mode switching circuit 40 electrically connected to the charging management circuit 20 and the controller 30, wherein the charging mode switching circuit 40 is configured to control the charging management circuit 20 to charge the tank circuit 10 in a corresponding charging mode in response to a charging mode switching signal output from the controller 30.

Illustratively, the tank circuit 10 may include, but is not limited to, a lithium battery, a super capacitor.

For example, the charge management circuit 20 may determine the current power of the tank circuit 10 according to at least one of the current voltage, the charging current, and the charging power of the tank circuit 10, and output a corresponding power detection signal, for example, the charge management circuit 20 may determine the current power of the tank circuit 10 according to the charging voltage of the tank circuit 10, specifically, the power of the tank circuit 10 is positively correlated with the voltage, when the voltage of the tank circuit 10 is lower than a voltage threshold, it indicates that the current power of the tank circuit 10 is higher, and when the voltage of the tank circuit 10 is higher than the voltage threshold, it indicates that the current power of the tank circuit 10 is lower. The power detection signal output by the charge management circuit 20 is a voltage signal, and the controller 30 may determine the current power of the tank circuit 10 according to the voltage value of the voltage signal.

The controller 30 may be, for example, a single chip microcomputer, a central processing circuit (Central Processing Unit, CPU), but may also be other general purpose processing circuits, digital signal processing circuits (Digital Signal Processor, DSP), application specific integrated circuits (Application Specific Integrated Circuit, ASIC), off-the-shelf programmable gate arrays (Field-Programmable Gate Array, FPGA) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, or the like.

The cosmetic instrument 1 provided by the application, through setting up charge management circuit 20, controller 30 and charge mode switching circuit 40, and detect the current electric quantity of tank circuit 10 through charge management circuit 20, output corresponding electric quantity detection signal, and be used for responding the electric quantity detection signal of charge management circuit 20 output through controller 30, output corresponding charge mode switching signal, and respond the charge mode switching signal of controller 30 output through charge mode switching circuit 40, control charge management circuit 20 charges for tank circuit 10 with the charge mode that corresponds, so, according to the difference of the current electric quantity of tank circuit 10, let charge management circuit 20 switch between slow charge mode and fast charge mode, not only can promote the charge rate, can also guarantee the security of charging.

Further, the charging mode switching circuit 40 is configured to respond to the charging mode switching signal output by the controller 30, and control the charging management circuit 20 to charge the tank circuit 10 in the corresponding charging mode specifically includes: the charging mode switching circuit 40 is configured to switch in a corresponding current setting resistor Rset to the charging management circuit 20 in response to the charging mode switching signal output by the controller 30. The charge management circuit 20 outputs different charge currents when different current setting resistors Rset are connected, so as to charge the tank circuit 10 in the fast charge mode or the slow charge mode.

Specifically, as shown in fig. 2, the charge management circuit 20 includes a battery charge management chip U1, where the battery charge management chip U1 includes a current setting pin CC, an output pin BAT, and a state of charge pin STAT, the current setting pin CC of the battery charge management chip U1 is electrically connected to the charge mode switching circuit 40, the output pin BAT of the battery charge management chip U1 is electrically connected to the tank circuit 10, and the state of charge pin STAT of the battery charge management chip U1 is electrically connected to the controller 30. The battery charging management chip U1 is configured to determine a current electric quantity of the energy storage circuit 10 based on a voltage of the energy storage circuit 10, output a corresponding electric quantity detection signal through the electric quantity state pin STAT, and adjust a charging current output to the energy storage circuit 10 based on a current setting resistor Rset of the current setting pin CC connected from the charging mode switching circuit 40, so as to charge the energy storage circuit 10 in a fast charging mode or a slow charging mode.

Further, the charging mode switching signal output by the controller 30 includes a fast charging mode control signal and a slow charging mode control signal, and the current setting resistor Rset connected to the current setting pin CC of the battery charging management chip U1 by the charging mode switching circuit 40 includes one of a first current setting resistor Rset1 and a second current setting resistor Rset2.

The controller 30 is configured to determine a current power of the energy storage circuit 10 based on the received power detection signal, and output the slow charge mode control signal when the current power of the energy storage circuit 10 is higher than a preset low power threshold, so that the charge mode switching circuit 40 accesses the first current setting resistor Rset1 for the current setting pin CC of the battery charge management chip U1, and output the fast charge mode control signal when the current power of the energy storage circuit 10 is lower than the preset low power threshold, so that the charge mode switching circuit 40 accesses the second current setting resistor Rset2 for the current setting pin CC of the battery charge management chip U1.

The battery charge management chip U1 enters a slow charge mode and outputs a first charge current I1 to charge the energy storage circuit 10 when the current setting pin CC is connected to the first current setting resistor Rset1, and enters a fast charge mode and outputs a second charge current I2 to charge the energy storage circuit 10 when the current setting pin CC is connected to the second current setting resistor Rset2. The resistance value of the first current setting resistor Rset1 is greater than the resistance value of the second current setting resistor Rset2, and the first charging current I1 is smaller than the second charging current I2.

Further, the charging mode switching circuit 40 includes a first resistor R1 and a mode switching sub-circuit 41.

The mode switching sub-circuit 41 is connected in parallel with the first resistor R1 between the current setting pin CC of the battery charge management chip U1 and ground, and the mode switching sub-circuit 41 is electrically connected with the controller 30 and is disconnected in response to the slow charge mode control signal, so as to switch in the first current setting resistor Rset1 for the current setting pin CC of the battery charge management chip U1 and is turned on in response to the fast charge mode signal, so as to switch in the second current setting resistor Rset2 for the current setting pin CC of the battery charge management chip U1. The first current setting resistor Rset1 is the first resistor R1, and the second current setting resistor Rset2 is a resistor unit formed by connecting the first resistor R1 and the mode switching sub-circuit 41 in parallel.

Further, the mode switching sub-circuit 41 includes a second resistor R2 and a switching element Q1 connected in series between the current setting pin CC of the battery charge management chip U1 and ground, the switching element Q1 includes a control terminal electrically connected to the controller 30, the control terminal of the switching element Q1 is configured to receive the fast charge mode signal or the slow charge mode signal, and the switching element Q1 is turned off in response to the received slow charge mode signal and turned on in response to the fast charge mode signal. The second current setting resistor Rset2 is a resistor unit formed by connecting the first resistor R1 and the second resistor R2 in parallel.

Illustratively, the switching element Q1 is a field effect transistor or a triode, in this embodiment of the present application, the switching element Q1 is an NMOS transistor, the fast charge mode control signal is a high level signal, and the slow charge mode control signal is a low level signal.

As can be seen from the working principle of the battery charge management chip U1, the relationship between the charging current Ich output by the charge management circuit 20, the current setting resistor Rset connected to the current setting pin CC, and the charging current amplification factor K is as follows:

Ich＝K×Vref/Rset

assuming that the preset low battery threshold is 70%, r1=r2=10kΩ, k=1000, and vref=1v.

When the current power of the tank circuit 10 is lower than 70%, the controller 30 outputs the fast charge mode control signal to the switching element Q1, so that the switching element Q1 is turned on, and the first resistor R1 and the second resistor R2 are connected in parallel and then connected to the current setting pin CC of the charge management circuit 20, that is, the current setting pin CC of the charge management circuit 20 is connected to the second current setting resistor rset2=r1// r2=5kΩ, and at this time, the charge management circuit 20 enters the fast charge mode, and the output charge current ich=i2=200ma. Thus, when the current power of the tank circuit 10 is low, the charge management circuit 20 charges the tank circuit 10 in the fast charge mode, so as to increase the charging speed and shorten the charging time.

When the current power level of the tank circuit 10 is higher than 70%, the controller 30 outputs the slow charge mode control signal to the switching element Q1, so that the switching element Q1 is turned off, and the first resistor R1 is directly connected to the current setting pin CC of the charge management circuit 20, that is, the current setting pin CC of the charge management circuit 20 is connected to the first current setting resistor rset1=r1=10kΩ, and at this time, the charge management circuit 20 enters the slow charge mode, and the output charge current ich=i1=100deg mA. Thus, when the current electric quantity of the energy storage circuit 10 is higher, the charge management circuit 20 charges the energy storage circuit 10 in a slow charge mode, so as to reduce the charge current, avoid overcharging, and improve the charge safety.

Further, the beauty instrument 1 further includes an indication circuit 50, the indication circuit 50 is electrically connected to the charge status pin STAT of the battery charge management chip U1, and the indication circuit 50 is configured to respond to the charge detection signal output by the charge status pin STAT, and output a corresponding indication signal to indicate the current charging mode of the battery charge management chip U1.

Specifically, the indication signal output by the indication circuit 50 includes a first indication signal and a second indication signal. The indication circuit 50 outputs a first indication signal when the battery charge management chip U1 is in a fast charge mode, and outputs a second indication signal when the battery charge management chip U1 is in a slow charge mode. In this way, the user can learn the current charge level and the current charging mode of the tank circuit 10 through the first and second indication signals.

Further, the indication circuit 50 includes a first light emitting element D1 and a second light emitting element D2. When the current power of the energy storage circuit 10 is lower than the preset low power threshold, the power detection signal output by the power state pin STAT of the battery charging management chip U1 is at a low level, and when the current power of the energy storage circuit 10 is higher than the preset low power threshold, the power detection signal output by the power state pin STAT of the battery charging management chip U1 is at a high level.

The first light emitting element D1 includes an anode and a cathode, the anode of the first light emitting element D1 is electrically connected with a voltage source Vregn, the cathode of the first light emitting element D1 is electrically connected with the charge state pin STAT of the battery charge management chip U1, and the first light emitting element D1 emits light when the cathode voltage is at a low level, so as to output the first indication signal.

The second light emitting element D2 includes an anode and a cathode, the anode of the second light emitting element D2 is electrically connected to the state of charge pin STAT of the battery charge management chip U1, the cathode of the second light emitting element D2 is grounded, and the second light emitting element D2 is configured to emit light when the anode voltage is at a high level, so as to output the second indication signal.

Optionally, the indicating circuit 50 further includes a third resistor R3 and a fourth resistor R4, where the third resistor R3 and the first light emitting element D1 are connected in series between the voltage source Vregn and the state of charge pin STAT of the battery charge management chip U1, and the fourth resistor R4 and the second light emitting element D2 are connected in series between the state of charge pin STAT of the battery charge management chip U1 and ground. The third resistor R3 and the fourth resistor R4 are respectively used for protecting the first light emitting element D1 and the second light emitting element D2 from being burnt out. Wherein the voltage source Vregn can be provided by the battery charge management chip U1.

Optionally, the first light emitting element D1 and the second light emitting element D2 may be LEDs (light-emitting diodes) with different colors, for example, the first light emitting element D1 is a red LED, and the second light emitting element D2 is a green LED.

Optionally, the charge management circuit 20 further includes a capacitor C. The capacitor C is electrically connected between the output pin BAT of the battery charge management chip U1 and ground. The capacitor C is used for filtering out harmonics in the charging current output by the battery charging management chip U1.

While embodiments of the present application have been shown and described, it will be understood by those of ordinary skill in the art that: many changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the application, the scope of which is defined by the claims and their equivalents.

Claims (10)

1. A cosmetic device, comprising:

a tank circuit;

the charging management circuit is used for charging the energy storage circuit, detecting the current electric quantity of the energy storage circuit and outputting a corresponding electric quantity detection signal; the charging mode of the charging management circuit comprises a fast charging mode and a slow charging mode;

the controller is electrically connected with the charging management circuit and is used for responding to the electric quantity detection signal output by the charging management circuit and outputting a corresponding charging mode switching signal; and

and the charging mode switching circuit is electrically connected with the charging management circuit and the controller respectively and is used for responding to a charging mode switching signal output by the controller and controlling the charging management circuit to charge the energy storage circuit in a corresponding charging mode.

2. The cosmetic apparatus of claim 1, wherein the charging mode switching circuit is configured to switch in a corresponding current setting resistor for the charging management circuit in response to a charging mode switching signal output from the controller;

the charging management circuit comprises a battery charging management chip, the battery charging management chip comprises a charging current setting pin, an output pin and an electric quantity state pin, the current setting pin of the battery charging management chip is electrically connected with the charging mode switching circuit, the output pin of the battery charging management chip is electrically connected with the energy storage circuit, and the electric quantity state pin of the battery charging management chip is electrically connected with the controller; the battery charging management chip is used for determining the current electric quantity of the energy storage circuit based on the voltage of the energy storage circuit, outputting a corresponding electric quantity detection signal through the electric quantity state pin, and adjusting the charging current output to the energy storage circuit based on the current setting resistor connected to the charging mode switching circuit by the current setting pin, so that the energy storage circuit is charged in a fast charging mode or a slow charging mode.

3. The cosmetic apparatus of claim 2, wherein the charge mode switching signal output by the controller comprises a fast charge mode control signal and a slow charge mode control signal, and the current setting resistor connected to the current setting pin of the battery charge management chip by the charge mode switching circuit comprises one of a first current setting resistor and a second current setting resistor; the controller is configured to determine a current power of the energy storage circuit based on the received power detection signal, and output the slow charge mode control signal when the current power of the energy storage circuit is higher than a preset low power threshold, so that the charge mode switching circuit accesses the first current setting resistor for a current setting pin of the battery charge management chip, and output the fast charge mode control signal when the current power of the energy storage circuit is lower than the preset low power threshold, so that the charge mode switching circuit accesses the second current setting resistor for a current setting pin of the battery charge management chip;

the battery charging management chip enters a slow charging mode and outputs a first charging current to charge the energy storage circuit when the current setting pin is connected with the first current setting resistor, and enters a fast charging mode and outputs a second charging current to charge the energy storage circuit when the current setting pin is connected with the second current setting resistor; wherein the first charging current is less than the second charging current.

4. The cosmetic apparatus of claim 3, wherein the charging mode switching circuit comprises:

a first resistor; and

a mode switching sub-circuit connected in parallel with the first resistor between a charging current setting pin of the battery charging management chip and ground, the mode switching sub-circuit being electrically connected to the controller and being turned off in response to the slow charging mode control signal so as to access the first current setting resistor to the current setting pin of the battery charging management chip and being turned on in response to the fast charging mode signal so as to access the second current setting resistor to the current setting pin of the battery charging management chip; the first current setting resistor is the first resistor, and the second current setting resistor is a resistor unit formed by connecting the first resistor and the mode switching sub-circuit in parallel.

5. The cosmetic apparatus of claim 4, wherein the mode switching sub-circuit comprises a second resistor and a switching element connected in series between a charging current setting pin of the battery charging management chip and ground, the switching element comprising a control terminal electrically connected to the controller, the control terminal of the switching element being configured to receive the fast charge mode signal or the slow charge mode signal, the switching element being turned off in response to the received slow charge mode signal and turned on in response to the fast charge mode signal; the second current setting resistor is a resistor unit formed by connecting the first resistor and the second resistor in parallel.

6. The cosmetic apparatus of claim 2, further comprising an indication circuit electrically connected to the charge status pin of the battery charge management chip, the indication circuit configured to output a corresponding indication signal to indicate a current charging mode of the battery charge management chip in response to the charge detection signal output by the charge status pin.

7. The cosmetic apparatus of claim 6, wherein the indication signal output by the indication circuit comprises a first indication signal and a second indication signal; the indication circuit outputs a first indication signal when the battery charge management chip is in a fast charge mode and outputs a second indication signal when the battery charge management chip is in a slow charge mode.

8. The cosmetic apparatus of claim 7, wherein the indication circuit comprises:

the first light-emitting element comprises an anode and a cathode, the anode of the first light-emitting element is electrically connected with a voltage source, the cathode of the first light-emitting element is electrically connected with an electric quantity state pin of the battery charging management chip, and the first light-emitting element emits light when the cathode voltage is at a low level so as to output the first indication signal; and

the second light-emitting element comprises an anode and a cathode, the anode of the second light-emitting element is electrically connected with the electric quantity state pin of the battery charging management chip, the cathode of the second light-emitting element is grounded, and the second light-emitting element emits light when the anode voltage is at a high level, so that the second indication signal is output.

9. The cosmetic apparatus of claim 2, wherein the charge management circuit further comprises a capacitor electrically connected between the output pin of the battery charge management chip and ground, the capacitor configured to filter out harmonics of the charge current output by the battery charge management chip.

10. The cosmetic apparatus of claim 5, wherein the switching element is a field effect transistor or a triode.