Heating circuit

Abstract

The utility model discloses a heating circuit, comprising a main control circuit, the output end of which is connected with the input end of a heating drive circuit, the input end of a first indicating circuit, the input end of a second indicating circuit and the input end of a third indicating circuit; the output end of the heating driving circuit is connected with the first heating electrode, the second heating electrode and the third heating electrode; the output end of the first indicating circuit is connected with the first indicating lamp; the output end of the second indicating circuit is connected with the second indicating lamp; the output end of the third indicating circuit is connected with the third indicating lamp. Whether the first heating electrode, the second heating electrode and the third heating electrode are heated or not can be visually observed through the first indicating circuit, the second indicating circuit and the third indicating circuit, a user can effectively and visually know whether the heating electrodes are heating at different positions of the face or not, and the use efficiency of the beauty instrument is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of beauty instruments, in particular to a heating circuit. Background Art

[0002] As a skin care device, beauty devices generally use radio frequency electromagnetic waves to act on the deep tissue of the skin, heat the dermis of the skin, stimulate the production of new collagen and elastin, and thus achieve the effect of tightening the skin. Microcurrent beauty uses microcurrent to input into multiple heating electrodes, thereby stimulating muscle tissue movement and promoting collagen synthesis. However, in the beauty devices of the prior art, the heating electrodes are located at different positions on the face, and the user cannot intuitively understand whether there are heating electrodes at different positions for stimulation and heating, which reduces the efficiency of the use of the beauty device. Utility Model Content

[0003] Based on this, it is necessary to propose a heating circuit to address the above problems.

[0004] A heating circuit, applied to a beauty instrument, comprises:

[0005] a main control circuit, the output end of which is connected to the input end of the heating drive circuit, the input end of the first indication circuit, the input end of the second indication circuit, the input end of the third indication circuit, the input end of the fourth indication circuit and the input end of the fifth indication circuit, and is used to output a first control signal to the heating drive circuit, a second control signal to the first indication circuit, a third control signal to the second indication circuit, a fourth control signal to the third indication circuit, a fifth control signal to the fourth indication circuit and a sixth control signal to the fifth indication circuit;

[0006] The heating drive circuit, whose output end is connected to the first heating electrode, the second heating electrode and the third heating electrode, is used to receive the first control signal and output a drive signal to the first heating electrode, the second heating electrode and the third heating electrode;

[0007] The first indicating circuit, whose output end is connected to the first indicating light, is used to receive the second control signal and drive the first indicating light to light up, so as to indicate that the first heating electrode, the second heating electrode and the third heating electrode are being heated;

[0008] The first indicating circuit, whose output end is connected to the first indicating light, is used to receive the second control signal and drive the first indicating light to light up, so as to indicate that the first heating electrode is heating;

[0009] The second indicating circuit, whose output end is connected to the second indicating light, is used to receive the third control signal and drive the second indicating light to light up, so as to indicate that the second heating electrode is heating;

[0010] The output end of the third indication circuit is connected to the third indicator light, and is used to receive the fourth control signal and drive the third indicator light to light up, so as to indicate that the third heating electrode is being heated.

[0011] In one embodiment, the main control circuit includes: a main control chip;

[0012] The first output terminal of the main control chip is connected to the input terminal of the heating drive circuit;

[0013] The second output terminal of the main control chip is connected to the input terminal of the first indication circuit;

[0014] The third output terminal of the main control chip is connected to the input terminal of the second indication circuit;

[0015] The fourth output terminal of the main control chip is connected to the input terminal of the third indication circuit;

[0016] The fifth output terminal of the main control chip is connected to the input terminal of the fourth indication circuit;

[0017] The sixth output terminal of the main control chip is connected to the input terminal of the fifth indication circuit.

[0018] In one embodiment, the heating driving circuit includes: a MOS tube, a first transistor, a first resistor and a second resistor;

[0019] One end of the first resistor is connected to the first output end of the main control chip, and the other end is connected to the base of the first transistor;

[0020] The emitter of the first transistor is grounded, and the collector of the first transistor is connected to the gate of the MOS transistor;

[0021] One end of the second resistor is connected to the collector of the first transistor, and the other end is connected to the emitter of the first transistor;

[0022] The source of the MOS tube is connected to an external power source, and the drain of the MOS tube is connected to the first heating electrode, the second heating electrode and the third heating electrode.

[0023] In one embodiment, the heating drive circuit further includes: a diode;

[0024] The cathode of the diode is connected to the source of the MOS tube, and the anode of the diode is grounded.

[0025] In one embodiment, the heating drive circuit further includes: a third resistor and a light emitting diode;

[0026] One end of the third resistor is connected to the drain of the MOS tube, the other end of the third resistor is connected to the anode of the light emitting diode, and the cathode of the light emitting diode is grounded.

[0027] In one embodiment, the first indication circuit includes: a fourth resistor, a fifth resistor and a second triode;

[0028] One end of the fourth resistor is connected to the second output end of the main control chip, and the other end of the fourth resistor is connected to the base of the second transistor;

[0029] The emitter of the second transistor is grounded, and the collector of the second transistor is connected to the first indicator light;

[0030] One end of the fifth resistor is connected to the base of the second transistor, and the other end is connected to the emitter of the second transistor.

[0031] In one embodiment, the second indicating circuit comprises: a sixth resistor, a seventh resistor and a third transistor;

[0032] One end of the sixth resistor is connected to the third output end of the main control chip, and the other end of the sixth resistor is connected to the base of the third transistor;

[0033] The emitter of the third transistor is grounded, and the collector of the third transistor is connected to the second indicator light;

[0034] One end of the seventh resistor is connected to the base of the third transistor, and the other end is connected to the emitter of the third transistor.

[0035] In one embodiment, the third indicating circuit comprises: an eighth resistor, a ninth resistor and a fourth transistor;

[0036] One end of the eighth resistor is connected to the fourth output end of the main control chip, and the other end of the eighth resistor is connected to the base of the fourth transistor;

[0037] The emitter of the fourth transistor is grounded, and the collector of the fourth transistor is connected to the third indicator light;

[0038] One end of the ninth resistor is connected to the base of the fourth transistor, and the other end is connected to the emitter of the fourth transistor.

[0039] Implementing the embodiments of the present utility model will have the following beneficial effects:

[0040] The main control circuit outputs a first control signal to the heating drive circuit, outputs a second control signal to the first indication circuit, outputs a third control signal to the second indication circuit, outputs a fourth control signal to the third indication circuit, outputs a fifth control signal to the fourth indication circuit, and outputs a sixth control signal to the fifth indication circuit; the heating drive circuit receives the first control signal, and outputs a drive signal to the first heating electrode, the second heating electrode, and the third heating electrode; the first indication circuit receives the second control signal, and drives the first indicator light to light up, to indicate that the first heating electrode is being heated; the second indication circuit receives the third control signal, and drives the second indicator light to light up, to indicate that the second heating electrode is being heated; the third indication circuit receives the fourth control signal, and drives the third indicator light to light up, to indicate that the third heating electrode is being heated; through the first indication circuit, the second indication circuit, and the third indication circuit, it can be intuitively observed whether the first heating electrode, the second heating electrode, and the third heating electrode have been heated, and the user can effectively and intuitively understand whether heating electrodes are being heated at different positions of the face, thereby improving the use efficiency of the beauty instrument. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0042] in:

[0043] Figure 1 is a structural block diagram of a heating circuit in one embodiment;

[0044] Figure 2 is a circuit diagram of a main control circuit in one embodiment;

[0045] Figure 3 is a circuit diagram of a heating drive circuit in one embodiment;

[0046] Figure 4 is a circuit diagram of a first indication circuit in one embodiment;

[0047] Figure 5 is a circuit diagram of a second indicating circuit in one embodiment;

[0048] Figure 6 FIG. 4 is a circuit diagram of a third indicating circuit in an embodiment. DETAILED DESCRIPTION

[0049] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0050] As a skin care device, a beauty instrument generally uses radio frequency electromagnetic waves to act on the deep tissue of the skin, heat the dermis of the skin, stimulate the production of new collagen and elastin, and thus achieve a beauty method that tightens the skin. Microcurrent beauty uses microcurrent to input into multiple heating electrodes, thereby stimulating muscle tissue movement and promoting collagen synthesis. However, in beauty instruments in the prior art, the heating electrodes are located at different positions on the face, and the user cannot intuitively understand whether there are heating electrodes at different positions for stimulation and heating, which reduces the efficiency of the beauty instrument. In order to solve the above technical problems, the present application provides a heating circuit, which is used in a beauty instrument, such as Figure 1As shown, it includes: a main control circuit 10, a heating drive circuit 20, a first indication circuit 30, a second indication circuit 40, a third indication circuit 50, a fourth indication circuit 60 and a fifth indication circuit 70, wherein the output end of the main control circuit 10 is connected to the input end of the heating drive circuit 20, the input end of the first indication circuit 30, the input end of the second indication circuit 40, the input end of the third indication circuit 50, the input end of the fourth indication circuit 60 and the input end of the fifth indication circuit 70, and is used to output a first control signal to the heating drive circuit 20, output a second control signal to the first indication circuit 30, output a third control signal to the second indication circuit 40, and output a third control signal to the third indication circuit 50. The output end of the heating drive circuit 20 is connected to the first heating electrode, the second heating electrode and the third heating electrode for receiving the first control signal and outputting a drive signal to the first heating electrode, the second heating electrode and the third heating electrode; the output end of the first indicator circuit 30 is connected to the first indicator light for receiving the second control signal and driving the first indicator light to light up, so as to indicate that the first heating electrode is being heated; the output end of the second indicator circuit 40 is connected to the second indicator light for receiving the third control signal and outputting a drive signal to the first heating electrode, the second heating electrode and the third heating electrode; the output end of the first indicator circuit 30 is connected to the first indicator light for receiving the second control signal and driving the first indicator light to light up, so as to indicate that the first heating electrode is being heated; the output end of the second indicator circuit 40 is connected to the second indicator light for receiving the third control signal and outputting a drive signal to the first heating electrode, the second heating electrode and the third heating electrode; The output end of the third indicator circuit 50 is connected to the third indicator light for receiving the fourth control signal and driving the third indicator light to indicate that the third heating electrode is being heated; the main control circuit outputs the first control signal to the heating drive circuit, the second control signal to the first indicator circuit, the third control signal to the second indicator circuit, the fourth control signal to the third indicator circuit, the fifth control signal to the fourth indicator circuit and the sixth control signal to the fifth indicator circuit; the heating drive circuit receives the first control signal and outputs the first heating electrode, the second heating electrode and the third heating electrode to the third indicator circuit. The electrode outputs a driving signal; the first indication circuit receives the second control signal, and drives the first indicator light to light up, to indicate that the first heating electrode is being heated; the second indication circuit receives the third control signal, and drives the second indicator light to light up, to indicate that the second heating electrode is being heated; the third indication circuit receives the fourth control signal, and drives the third indicator light to light up, to indicate that the third heating electrode is being heated; through the first indication circuit, the second indication circuit and the third indication circuit, it can be intuitively observed whether the first heating electrode, the second heating electrode and the third heating electrode have been heated, and the user can effectively and intuitively understand whether the heating electrodes at different positions of the face are being heated, thereby improving the use efficiency of the beauty instrument.

[0051] In one embodiment, Figure 2As shown, the main control circuit 10 includes: a main control chip U6; wherein, the model of the main control chip U6 is STM32F105RBT6, and the first output terminal PA2 of the main control chip U6 is connected to the input terminal of the heating drive circuit 20; the second output terminal PA0 of the main control chip U6 is connected to the input terminal of the first indication circuit 30; the third output terminal PC3 of the main control chip U6 is connected to the input terminal of the second indication circuit 40; the fourth output terminal PC2 of the main control chip U6 is connected to the input terminal of the third indication circuit 50; the fifth output terminal PC1 of the main control chip U6 is connected to the input terminal of the fourth indication circuit 60; the sixth output terminal PC0 of the main control chip U6 is connected to the input terminal of the fifth indication circuit 70.

[0052] In one embodiment, Figure 3 As shown, the heating drive circuit 20 includes: a MOS tube Q14, a first transistor Q15, a first resistor R52 and a second resistor R53; wherein, one end of the first resistor R52 is connected to the first output terminal PA2 of the main control chip U6, and the other end is connected to the base of the first transistor Q15; the emitter of the first transistor Q15 is grounded, and the collector of the first transistor Q15 is connected to the gate of the MOS tube Q14; one end of the second resistor R53 is connected to the collector of the first transistor Q15, and the other end is connected to the emitter of the first transistor Q15; the source of the MOS tube Q14 is connected to the external power supply, and the drain of the MOS tube Q14 is connected to the first heating electrode, the second heating electrode and the third heating electrode.

[0053] In one embodiment, Figure 3 As shown, the heating driving circuit 20 further includes: a diode D17; wherein the cathode of the diode D17 is connected to the source of the MOS tube Q14, and the anode of the diode D17 is grounded.

[0054] In one embodiment, Figure 3 As shown, the heating drive circuit 20 also includes: a third resistor R51 and a light emitting diode LED2; wherein, one end of the third resistor R51 is connected to the drain of the MOS tube Q14, the other end of the third resistor R51 is connected to the anode of the light emitting diode LED2, and the cathode of the light emitting diode LED2 is grounded.

[0055] In one embodiment, Figure 4As shown, the first indication circuit 30 includes: a fourth resistor R54, a fifth resistor R59 and a second transistor Q16; wherein, one end of the fourth resistor R54 is connected to the second output terminal PA0 of the main control chip U6, and the other end of the fourth resistor R54 is connected to the base of the second transistor Q16; the emitter of the second transistor Q16 is grounded, and the collector of the second transistor Q16 is connected to the first indicator light; one end of the fifth resistor R59 is connected to the base of the second transistor Q16, and the other end is connected to the emitter of the second transistor Q16.

[0056] In one embodiment, Figure 5 As shown, the second indication circuit 40 includes: a sixth resistor R55, a seventh resistor R60 and a third transistor Q17; wherein, one end of the sixth resistor R55 is connected to the third output terminal PC3 of the main control chip U6, and the other end of the sixth resistor R55 is connected to the base of the third transistor Q17; the emitter of the third transistor Q17 is grounded, and the collector of the third transistor Q17 is connected to the second indicator light; one end of the seventh resistor R60 is connected to the base of the third transistor Q17, and the other end is connected to the emitter of the third transistor Q17.

[0057] In one embodiment, Figure 6 As shown, the third indication circuit 50 includes: an eighth resistor R56, a ninth resistor R61 and a fourth transistor Q18; wherein, one end of the eighth resistor R56 is connected to the fourth output terminal PC2 of the main control chip U6, and the other end of the eighth resistor R56 is connected to the base of the fourth transistor Q18; the emitter of the fourth transistor Q18 is grounded, and the collector of the fourth transistor Q18 is connected to the third indicator light; one end of the ninth resistor R61 is connected to the base of the fourth transistor Q18, and the other end is connected to the emitter of the fourth transistor Q18.

[0058] The main control circuit outputs a first control signal to the heating drive circuit, outputs a second control signal to the first indication circuit, outputs a third control signal to the second indication circuit, outputs a fourth control signal to the third indication circuit, outputs a fifth control signal to the fourth indication circuit, and outputs a sixth control signal to the fifth indication circuit; the heating drive circuit receives the first control signal, and outputs a drive signal to the first heating electrode, the second heating electrode, and the third heating electrode; the first indication circuit receives the second control signal, and drives the first indicator light to light up, to indicate that the first heating electrode is being heated; the second indication circuit receives the third control signal, and drives the second indicator light to light up, to indicate that the second heating electrode is being heated; the third indication circuit receives the fourth control signal, and drives the third indicator light to light up, to indicate that the third heating electrode is being heated; through the first indication circuit, the second indication circuit, and the third indication circuit, it can be intuitively observed whether the first heating electrode, the second heating electrode, and the third heating electrode have been heated, and the user can effectively and intuitively understand whether heating electrodes are being heated at different positions of the face, thereby improving the use efficiency of the beauty instrument. In addition, in the present application, in addition to the disclosed first heating electrode, second heating electrode and third heating electrode, other multiple heating electrodes may also be included. Correspondingly, the same number of indication circuits may be provided to indicate whether other multiple heating electrodes are heated.

[0059] The above disclosure is only a preferred embodiment of the present invention, and certainly cannot be used to limit the scope of rights of the present invention. Therefore, equivalent changes made according to the claims of the present invention are still within the scope covered by the present invention.

Claims

1. A heating circuit, characterized in that: Applied in beauty instruments, including: a main control circuit, the output end of which is connected to the input end of the heating drive circuit, the input end of the first indication circuit, the input end of the second indication circuit, the input end of the third indication circuit, the input end of the fourth indication circuit and the input end of the fifth indication circuit, and is used to output a first control signal to the heating drive circuit, a second control signal to the first indication circuit, a third control signal to the second indication circuit, a fourth control signal to the third indication circuit, a fifth control signal to the fourth indication circuit and a sixth control signal to the fifth indication circuit; The heating drive circuit, whose output end is connected to the first heating electrode, the second heating electrode and the third heating electrode, is used to receive the first control signal and output a drive signal to the first heating electrode, the second heating electrode and the third heating electrode; The first indicating circuit, whose output end is connected to the first indicating light, is used to receive the second control signal and drive the first indicating light to light up, so as to indicate that the first heating electrode is heating; The second indicating circuit, whose output end is connected to the second indicating light, is used to receive the third control signal and drive the second indicating light to light up, so as to indicate that the second heating electrode is heating; The output end of the third indication circuit is connected to the third indicator light, and is used to receive the fourth control signal and drive the third indicator light to light up, so as to indicate that the third heating electrode is being heated.

2. The heating circuit according to claim 1, characterized in that: The main control circuit comprises: a main control chip; The first output terminal of the main control chip is connected to the input terminal of the heating drive circuit; The second output terminal of the main control chip is connected to the input terminal of the first indication circuit; The third output terminal of the main control chip is connected to the input terminal of the second indication circuit; The fourth output terminal of the main control chip is connected to the input terminal of the third indication circuit; The fifth output terminal of the main control chip is connected to the input terminal of the fourth indication circuit; The sixth output terminal of the main control chip is connected to the input terminal of the fifth indication circuit.

3. The heating circuit according to claim 2, characterized in that: The heating drive circuit comprises: a MOS tube, a first triode, a first resistor and a second resistor; One end of the first resistor is connected to the first output end of the main control chip, and the other end is connected to the base of the first transistor; The emitter of the first transistor is grounded, and the collector of the first transistor is connected to the gate of the MOS transistor; One end of the second resistor is connected to the collector of the first transistor, and the other end is connected to the emitter of the first transistor; The source of the MOS tube is connected to an external power source, and the drain of the MOS tube is connected to the first heating electrode, the second heating electrode and the third heating electrode.

4. The heating circuit according to claim 3, characterized in that: The heating drive circuit further includes: a diode; The cathode of the diode is connected to the source of the MOS tube, and the anode of the diode is grounded.

5. The heating circuit according to claim 4, characterized in that: The heating drive circuit further includes: a third resistor and a light emitting diode; One end of the third resistor is connected to the drain of the MOS tube, the other end of the third resistor is connected to the anode of the light emitting diode, and the cathode of the light emitting diode is grounded.

6. The heating circuit according to claim 2, characterized in that: The first indicating circuit comprises: a fourth resistor, a fifth resistor and a second triode; One end of the fourth resistor is connected to the second output end of the main control chip, and the other end of the fourth resistor is connected to the base of the second transistor; The emitter of the second transistor is grounded, and the collector of the second transistor is connected to the first indicator light; One end of the fifth resistor is connected to the base of the second transistor, and the other end is connected to the emitter of the second transistor.

7. The heating circuit according to claim 2, characterized in that: The second indicating circuit comprises: a sixth resistor, a seventh resistor and a third triode; One end of the sixth resistor is connected to the third output end of the main control chip, and the other end of the sixth resistor is connected to the base of the third transistor; The emitter of the third transistor is grounded, and the collector of the third transistor is connected to the second indicator light; One end of the seventh resistor is connected to the base of the third transistor, and the other end is connected to the emitter of the third transistor.

8. The heating circuit according to claim 2, characterized in that: The third indicating circuit comprises: an eighth resistor, a ninth resistor and a fourth transistor; One end of the eighth resistor is connected to the fourth output end of the main control chip, and the other end of the eighth resistor is connected to the base of the fourth transistor; The emitter of the fourth transistor is grounded, and the collector of the fourth transistor is connected to the third indicator light; One end of the ninth resistor is connected to the base of the fourth transistor, and the other end is connected to the emitter of the fourth transistor.

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