Handle control circuit

Abstract

The utility model discloses a handle control circuit comprising a first switch circuit, an input end of which is connected with a master control circuit and an output end of which is connected with an input end of a radio frequency signal switching circuit; the input end of the radio-frequency signal switching circuit is connected with the radio-frequency signal output circuit, and the output end of the radio-frequency signal switching circuit is connected with the first handle and the second handle; the input end of the second switching circuit is connected with the main control circuit, and the output end is connected with the input end of the handle switching circuit; the input end of the handle switching circuit is connected with the radio-frequency signal output circuit, and the output end of the handle switching circuit is connected with the first handle and the second handle. According to the cosmetic instrument, when only one skin position needs to be stimulated, the first handle and the second handle can be effectively switched, that is, only one handle can output a radio frequency signal, and the use efficiency of the cosmetic instrument is improved.

Description

Technical Field

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

[0002] As a skin care device, a beauty instrument generally acts on the deep tissue of the skin through radio frequency electromagnetic waves, heats the dermis of the skin, stimulates the production of new collagen and elastin, and thus achieves a beauty method of tightening the skin. Such radio frequency electromagnetic waves are generally transmitted to human skin through a handle in the form of radio frequency signals. However, in the beauty instruments of the prior art, the two handles used generally work simultaneously to synchronously stimulate different skin locations. When only one skin location needs to be stimulated, effective switching cannot be performed, that is, it is impossible to achieve that only one handle outputs a radio frequency signal, thereby reducing the use efficiency of the beauty instrument. Utility Model Content

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

[0004] A handle control circuit, comprising:

[0005] A first switch circuit, whose input end is connected to the main control circuit and whose output end is connected to the input end of the radio frequency signal switching circuit, is used to receive a first control signal output by the main control circuit and to open or close a path between the radio frequency signal switching circuit and the radio frequency signal output circuit;

[0006] The RF signal switching circuit has an input end connected to the RF signal output circuit and an output end connected to the first handle and the second handle, and is used to receive the RF signal output by the RF signal output circuit and transmit it to the first handle and the second handle;

[0007] a second switch circuit, whose input end is connected to the main control circuit and whose output end is connected to the input end of the handle switching circuit, for receiving a second control signal output by the main control circuit and enabling or disabling the path between the handle switching circuit and the radio frequency signal output circuit;

[0008] The handle switching circuit has an input end connected to the RF signal output circuit and an output end connected to the first handle and the second handle, and is used to receive the RF signal output by the RF signal output circuit and transmit it to the first handle or the second handle.

[0009] In one embodiment, the first switch circuit includes: a first MOS transistor, a first capacitor and a first resistor;

[0010] The gate of the first MOS transistor is connected to one end of the first capacitor and one end of the first resistor, the drain of the first MOS transistor is connected to the input end of the RF signal switching circuit, and the source of the first MOS transistor is grounded;

[0011] The other end of the first capacitor is grounded;

[0012] The other end of the first resistor is connected to the main control circuit.

[0013] In one embodiment, the radio frequency signal switching circuit includes: a first relay;

[0014] One end of the winding of the first relay is connected to the drain of the first MOS tube, the other end of the winding of the first relay is connected to an external power supply, the first normally closed point and the second normally closed contact of the first relay are both connected to the negative poles of the first handle and the second handle, the first common contact and the second common contact of the first relay are both connected to the positive poles of the first handle and the second handle, and the first normally open contact and the second normally open contact of the first relay are both connected to the handle switching circuit.

[0015] In one embodiment, the radio frequency signal switching circuit further includes: a first resistor, a second resistor, a third resistor, a fourth resistor, a fifth resistor, a sixth resistor, a seventh resistor, an eighth resistor and a ninth resistor;

[0016] One end of the eighth resistor is connected to the first normally closed point and the second normally closed contact of the first relay, the other end of the eighth resistor is connected to one end of the fifth resistor, the other end of the fifth resistor is connected to one end of the second resistor, and the other end of the second resistor is connected to the negative electrodes of the first handle and the second handle;

[0017] The first resistor and the third resistor are both connected in parallel with the second resistor;

[0018] The fourth resistor and the sixth resistor are both connected in parallel with the fifth resistor;

[0019] The seventh resistor and the ninth resistor are both connected in parallel with the eighth resistor.

[0020] In one embodiment, the second switch circuit includes: a second MOS transistor, a second capacitor and a second resistor;

[0021] The gate of the second MOS tube is connected to one end of the second capacitor and one end of the second resistor, the drain of the second MOS tube is connected to the input end of the handle switching circuit, and the source of the second MOS tube is grounded;

[0022] The other end of the second capacitor is grounded;

[0023] The other end of the second resistor is connected to the main control circuit.

[0024] In one embodiment, the handle control circuit further includes: the handle switching circuit includes: a second current collector and a connector;

[0025] One end of the winding of the second current collector is connected to the drain of the second MOS tube, the other end of the winding of the second current collector is connected to the external power supply, the first normally closed point of the second current collector is connected to the sixth pin of the connector, the second normally closed contact of the second current collector is connected to the fifth pin of the connector, the first common contact of the second current collector is connected to the first normally closed point of the first relay, the second common contact of the second current collector is connected to the first normally open contact and the second normally open contact of the first relay, the first normally open contact of the second current collector is connected to the fourth pin of the connector, and the second normally open contact of the second current collector is connected to the third pin of the connector;

[0026] The connector is connected to the positive pole and the negative pole of the first handle, and is also connected to the positive pole and the negative pole of the second handle.

[0027] In one embodiment, the handle switching circuit further includes: a third capacitor and a fourth capacitor;

[0028] One end of the third capacitor is connected to the second normally open contact of the second current collector, and the other end is connected to the third pin of the connector;

[0029] One end of the fourth capacitor is connected to the second normally closed contact of the second current collector, and the other end is connected to the fifth pin of the connector.

[0030] In one embodiment, the handle control circuit further includes: a first diode;

[0031] The anode of the first diode is connected to the drain of the first MOS tube, and the cathode is connected to the external power supply.

[0032] In one embodiment, the handle control circuit further includes: a second diode;

[0033] The anode of the second diode is connected to the drain of the second MOS tube, and the cathode is connected to the external power supply.

[0034] Implementing the embodiments of the present utility model will have the following beneficial effects:

[0035] The present application receives the first control signal output by the main control circuit through the first switch circuit, and turns on or off the path between the RF signal switching circuit and the RF signal output circuit; the RF signal switching circuit receives the RF signal output by the RF signal output circuit, and transmits it to the first handle and the second handle; the second switch circuit receives the second control signal output by the main control circuit, and turns on or off the path between the handle switching circuit and the RF signal output circuit; the handle switching circuit receives the RF signal output by the RF signal output circuit, and transmits it to the first handle or the second handle. The first switch circuit and the RF signal switching circuit are used to determine whether the first handle and the second handle will receive the RF signal, and the second switch circuit and the handle switching circuit are used to determine whether the first handle receives the RF signal or the second handle receives the RF signal; when only one skin position needs to be stimulated, the first handle and the second handle can be effectively switched, that is, only one of the handles can output the RF signal, thereby improving the use efficiency of the beauty instrument. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] 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.

[0037] in:

[0038] Figure 1 is a structural block diagram of a handle control circuit in one embodiment;

[0039] Figure 2 Detailed description of the invention The figure is a circuit diagram of a first switch circuit, a radio frequency signal switch circuit, a second switch circuit and a handle switch circuit in one embodiment. DETAILED DESCRIPTION

[0040] 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.

[0041] As a skin care device, a beauty instrument generally acts on the deep tissue of the skin through radio frequency electromagnetic waves, heats the dermis of the skin, stimulates the production of new collagen and elastin, and thus achieves a beauty method of tightening the skin. Such radio frequency electromagnetic waves are generally transmitted to human skin through a handle in the form of radio frequency signals. However, in the beauty instruments of the prior art, the two handles used generally work simultaneously to synchronously stimulate different skin locations. When only one skin location needs to be stimulated, effective switching cannot be performed, that is, it is impossible to achieve that only one handle outputs a radio frequency signal, thereby reducing the use efficiency of the beauty instrument. In order to solve the above technical problems, the present application provides a handle control circuit, such as Figure 1As shown, it includes: a first switch circuit 10, a radio frequency signal switching circuit 20, a second switch circuit 30 and a handle switching circuit 40, wherein the input end of the first switch circuit 10 is connected to the main control circuit, and the output end is connected to the input end of the radio frequency signal switching circuit 20, for receiving the first control signal output by the main control circuit, and making the path between the radio frequency signal switching circuit 20 and the radio frequency signal output circuit conductive or closed; the radio frequency signal switching circuit 20, the input end is connected to the radio frequency signal output circuit, and the output end is connected to the first handle and the second handle, for receiving the radio frequency signal output by the radio frequency signal output circuit, and transmitting it to the first handle and the second handle; the input end of the second switch circuit 30 is connected to the main control circuit, and the output end is connected to the input end of the handle switching circuit 40, for receiving the second control signal output by the main control circuit, and making the path between the handle switching circuit 40 and the radio frequency signal output circuit conductive or closed; the input end of the handle switching circuit 40 is connected to the radio frequency signal output circuit, and the output end is connected to the first handle and the second handle, for receiving the radio frequency signal output by the radio frequency signal output circuit, and transmitting it to the first handle or the second handle. The present application receives the first control signal output by the main control circuit through the first switch circuit, and turns on or off the path between the RF signal switching circuit and the RF signal output circuit; the RF signal switching circuit receives the RF signal output by the RF signal output circuit, and transmits it to the first handle and the second handle; the second switch circuit receives the second control signal output by the main control circuit, and turns on or off the path between the handle switching circuit and the RF signal output circuit; the handle switching circuit receives the RF signal output by the RF signal output circuit, and transmits it to the first handle or the second handle. The first switch circuit and the RF signal switching circuit are used to determine whether the first handle and the second handle will receive the RF signal, and the second switch circuit and the handle switching circuit are used to determine whether the first handle receives the RF signal or the second handle receives the RF signal; when only one skin position needs to be stimulated, the first handle and the second handle can be effectively switched, that is, only one of the handles can output the RF signal, thereby improving the use efficiency of the beauty instrument.

[0042] In one embodiment, Figure 2 As shown, the first switch circuit 10 includes: a first MOS tube T9, a first capacitor C80 and a first resistor R122; wherein, the gate of the first MOS tube T9 is connected to one end of the first capacitor C80 and one end of the first resistor R122, the drain of the first MOS tube T9 is connected to the input end of the RF signal switching circuit 20, and the source of the first MOS tube T9 is grounded; the other end of the first capacitor C80 is grounded; and the other end of the first resistor R122 is connected to the main control circuit.

[0043] In one embodiment, Figure 2 As shown, the RF signal switching circuit 20 includes: a first relay RL2; wherein, one end 1 of the winding of the first relay RL2 is connected to the drain of the first MOS tube T9, the other end 2 of the winding of the first relay RL2 is connected to an external power supply, the first normally closed point 2 and the second normally closed contact 7 of the first relay RL2 are both connected to the negative poles of the first handle and the second handle, the first common contact 3 and the second common contact 6 of the first relay RL2 are both connected to the positive poles of the first handle and the second handle, and the first normally open contact 4 and the second normally open contact 5 of the first relay RL2 are both connected to the handle switching circuit 40.

[0044] In one embodiment, Figure 2 As shown, the RF signal switching circuit 20 also includes: a first resistor R112, a second resistor R113, a third resistor R114, a fourth resistor R115, a fifth resistor R116, a sixth resistor R117, a seventh resistor R118, an eighth resistor R119 and a ninth resistor R120; wherein, one end of the eighth resistor R119 is connected to the first normally closed point 2 and the second normally closed contact 7 of the first relay RL2, the other end of the eighth resistor R119 is connected to one end of the fifth resistor R116, the other end of the fifth resistor R116 is connected to one end of the second resistor R113, and the other end of the second resistor R113 is connected to the negative electrodes of the first handle and the second handle; the first resistor R112 and the third resistor R114 are both connected in parallel with the second resistor R113; the fourth resistor R115 and the sixth resistor R117 are both connected in parallel with the fifth resistor R116; the seventh resistor R118 and the ninth resistor R120 are both connected in parallel with the eighth resistor R119.

[0045] In one embodiment, Figure 2 As shown, the second switch circuit 30 includes: a second MOS tube T8, a second capacitor C79 and a second resistor R121; wherein, the gate of the second MOS tube T8 is connected to one end of the second capacitor C79 and one end of the second resistor R121, the drain of the second MOS tube T8 is connected to the input end of the handle switching circuit 40, and the source of the second MOS tube T8 is grounded; the other end of the second capacitor C79 is grounded; and the other end of the second resistor R121 is connected to the main control circuit.

[0046] In one embodiment, Figure 2As shown, the handle control circuit also includes: the handle switching circuit 40 includes: a second collector RL1 and a connector J3; wherein, one end 1 of the winding of the second collector RL1 is connected to the drain of the second MOS tube T8, the other end 2 of the winding of the second collector RL1 is connected to the external power supply, the first normally closed point 2 of the second collector RL1 is connected to the sixth pin 6 of the connector J3, the second normally closed contact 7 of the second collector RL1 is connected to the fifth pin 5 of the connector J3, the first common contact 3 of the second collector RL1 is connected to the first normally closed point 2 of the first relay RL2, the second common contact 6 of the second collector RL1 is connected to the first normally open contact 4 and the second normally open contact 5 of the first relay RL2, the first normally open contact 4 of the second collector RL1 is connected to the fourth pin 4 of the connector J3, and the second normally open contact 5 of the second collector RL1 is connected to the third pin 3 of the connector J3; the connector J3 is connected to the positive and negative electrodes of the first handle, and is also connected to the positive and negative electrodes of the second handle.

[0047] In one embodiment, Figure 2 As shown, the handle switching circuit 40 also includes: a third capacitor C75 and a fourth capacitor C76; wherein, one end of the third capacitor C75 is connected to the second normally open contact 5 of the second collector RL1, and the other end is connected to the third pin 3 of the connector J3; one end of the fourth capacitor C76 is connected to the second normally closed contact 7 of the second collector RL1, and the other end is connected to the fifth pin 5 of the connector J3.

[0048] In one embodiment, Figure 2 As shown, the handle control circuit further includes: a first diode D10; wherein the anode of the first diode D10 is connected to the drain of the first MOS tube T9, and the cathode is connected to the external power supply.

[0049] In one embodiment, Figure 2 As shown, the handle control circuit further includes: a second diode D11; wherein the anode of the second diode D11 is connected to the drain of the second MOS tube T8, and the cathode is connected to the external power supply.

[0050] The present application receives the first control signal output by the main control circuit through the first switch circuit, and turns on or off the path between the RF signal switching circuit and the RF signal output circuit; the RF signal switching circuit receives the RF signal output by the RF signal output circuit, and transmits it to the first handle and the second handle; the second switch circuit receives the second control signal output by the main control circuit, and turns on or off the path between the handle switching circuit and the RF signal output circuit; the handle switching circuit receives the RF signal output by the RF signal output circuit, and transmits it to the first handle or the second handle. The first switch circuit and the RF signal switching circuit are used to determine whether the first handle and the second handle will receive the RF signal, and the second switch circuit and the handle switching circuit are used to determine whether the first handle receives the RF signal or the second handle receives the RF signal; when only one skin position needs to be stimulated, the first handle and the second handle can be effectively switched, that is, only one of the handles can output the RF signal, thereby improving the use efficiency of the beauty instrument.

[0051] 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 handle control circuit, characterized in that: include: A first switch circuit, whose input end is connected to the main control circuit and whose output end is connected to the input end of the radio frequency signal switching circuit, is used to receive a first control signal output by the main control circuit and to open or close a path between the radio frequency signal switching circuit and the radio frequency signal output circuit; The RF signal switching circuit has an input end connected to the RF signal output circuit and an output end connected to the first handle and the second handle, and is used to receive the RF signal output by the RF signal output circuit and transmit it to the first handle and the second handle; a second switch circuit, whose input end is connected to the main control circuit and whose output end is connected to the input end of the handle switching circuit, for receiving a second control signal output by the main control circuit and enabling or disabling the path between the handle switching circuit and the radio frequency signal output circuit; The handle switching circuit has an input end connected to the RF signal output circuit and an output end connected to the first handle and the second handle, and is used to receive the RF signal output by the RF signal output circuit and transmit it to the first handle or the second handle.

2. The handle control circuit according to claim 1, characterized in that: The first switch circuit includes: a first MOS tube, a first capacitor and a first resistor; The gate of the first MOS transistor is connected to one end of the first capacitor and one end of the first resistor, the drain of the first MOS transistor is connected to the input end of the RF signal switching circuit, and the source of the first MOS transistor is grounded; The other end of the first capacitor is grounded; The other end of the first resistor is connected to the main control circuit.

3. The handle control circuit according to claim 2, characterized in that: The radio frequency signal switching circuit comprises: a first relay; One end of the winding of the first relay is connected to the drain of the first MOS tube, the other end of the winding of the first relay is connected to an external power supply, the first normally closed point and the second normally closed contact of the first relay are both connected to the negative poles of the first handle and the second handle, the first common contact and the second common contact of the first relay are both connected to the positive poles of the first handle and the second handle, and the first normally open contact and the second normally open contact of the first relay are both connected to the handle switching circuit.

4. The handle control circuit according to claim 3, characterized in that: The radio frequency signal switching circuit further includes: a first resistor, a second resistor, a third resistor, a fourth resistor, a fifth resistor, a sixth resistor, a seventh resistor, an eighth resistor and a ninth resistor; One end of the eighth resistor is connected to the first normally closed point and the second normally closed contact of the first relay, the other end of the eighth resistor is connected to one end of the fifth resistor, the other end of the fifth resistor is connected to one end of the second resistor, and the other end of the second resistor is connected to the negative electrodes of the first handle and the second handle; The first resistor and the third resistor are both connected in parallel with the second resistor; The fourth resistor and the sixth resistor are both connected in parallel with the fifth resistor; The seventh resistor and the ninth resistor are both connected in parallel with the eighth resistor.

5. The handle control circuit according to claim 4, characterized in that: The second switch circuit includes: a second MOS tube, a second capacitor and a second resistor; The gate of the second MOS tube is connected to one end of the second capacitor and one end of the second resistor, the drain of the second MOS tube is connected to the input end of the handle switching circuit, and the source of the second MOS tube is grounded; The other end of the second capacitor is grounded; The other end of the second resistor is connected to the main control circuit.

6. The handle control circuit according to claim 5, characterized in that: Also includes: The handle switching circuit comprises: a second current collector and a connector; One end of the winding of the second current collector is connected to the drain of the second MOS tube, the other end of the winding of the second current collector is connected to the external power supply, the first normally closed point of the second current collector is connected to the sixth pin of the connector, the second normally closed contact of the second current collector is connected to the fifth pin of the connector, the first common contact of the second current collector is connected to the first normally closed point of the first relay, the second common contact of the second current collector is connected to the first normally open contact and the second normally open contact of the first relay, the first normally open contact of the second current collector is connected to the fourth pin of the connector, and the second normally open contact of the second current collector is connected to the third pin of the connector; The connector is connected to the positive pole and the negative pole of the first handle, and is also connected to the positive pole and the negative pole of the second handle.

7. The handle control circuit according to claim 6, characterized in that: The handle switching circuit further includes: a third capacitor and a fourth capacitor; One end of the third capacitor is connected to the second normally open contact of the second current collector, and the other end is connected to the third pin of the connector; One end of the fourth capacitor is connected to the second normally closed contact of the second current collector, and the other end is connected to the fifth pin of the connector.

8. The handle control circuit according to claim 4, characterized in that: Also includes: A first diode; The anode of the first diode is connected to the drain of the first MOS tube, and the cathode is connected to the external power supply.

9. The handle control circuit according to claim 6, characterized in that: Also includes: A second diode; The anode of the second diode is connected to the drain of the second MOS tube, and the cathode is connected to the external power supply.

Images