Multi-power garment steamer control circuit based on automatic voltage division and multi-power garment steamer

Abstract

The utility model provides a multi-power garment steamer control circuit based on automatic voltage division, which comprises a power switch, a load circuit and an automatic voltage division control circuit, the load circuit comprises a heating part and a water supply part which are connected in parallel, the power switch is connected with the load circuit, and the load circuit is connected with the automatic voltage division control circuit. The multi-power-source garment steamer control circuit based on automatic voltage division is formed, the multi-power-source garment steamer control circuit based on automatic voltage division is connected to the two ends of a power source, and the automatic voltage division control circuit is used for switching on a control loop enabling the multi-power-source garment steamer to work normally according to whether the voltage peak value of the input voltage exceeds a set threshold value or not. Normal work of the multi-power-supply garment steamer under different power supply voltages is achieved.

Description

Technical Field

[0001] The present application relates to the technical field of garment steamers, and in particular to a multi-power garment steamer control circuit based on automatic voltage division and a multi-power garment steamer. Background Art

[0002] A garment steamer is a household appliance used for ironing clothes. It produces hot steam or air to help remove wrinkles from clothes and make them look neater.

[0003] The voltage of AC power supply in the world is distributed in two sections: 100V-120V or 220V-240V. For example, Asia, Europe and other regions use 220V AC with a frequency of 50 Hz, while North America, Japan and other regions use 110V AC with a frequency of 60 Hz.

[0004] In today's globalized world, manufacturers need to design garment steamers that can adapt to these two different voltages and improve the applicability of garment steamers in different power supply voltage environments. However, it is obviously inappropriate to design garment steamers with components of different rated working voltages for different power supply voltage environments. This will not only increase the design cost, but also the product is corresponding to one of the power supply voltage environments, and the same garment steamer cannot adapt to two different power supply voltage environments at the same time. Utility Model Content

[0005] The purpose of the embodiments of the present application is to provide a multi-power supply garment steamer control circuit and a multi-power supply garment steamer based on automatic voltage division, so as to adapt to different power supply voltages and improve the applicability of the garment steamer in different power supply voltage environments.

[0006] In order to achieve the above purpose, the embodiments of the present application are implemented in the following manner:

[0007] In the first aspect, an embodiment of the present application provides a multi-power supply garment steamer control circuit based on automatic voltage division, comprising a power switch, a load circuit and an automatic voltage division control circuit, wherein the load circuit comprises a heating part and a water supply part connected in parallel, the power switch is connected to the load circuit, and the load circuit is connected to the automatic voltage division control circuit to form a multi-power supply garment steamer control circuit based on automatic voltage division, wherein the multi-power supply garment steamer control circuit based on automatic voltage division is connected at both ends of a power supply, wherein the automatic voltage division control circuit is used to connect a control loop that enables the multi-power supply garment steamer to operate normally according to whether the voltage peak of the input voltage exceeds a set threshold.

[0008] In combination with the first aspect, in a first possible implementation of the first aspect, the automatic voltage dividing control circuit includes a voltage dividing resistor, a power supply circuit, an AC voltage detection circuit, a relay control circuit, and an automatic voltage dividing switch circuit, and the voltage dividing resistor is connected in parallel with the automatic voltage dividing switch circuit; the power switch is connected to the power supply circuit, and the power supply circuit is connected to the relay control circuit; the power switch is then connected to the AC voltage detection circuit, and the AC voltage detection circuit is connected to the relay control circuit; the relay control circuit is arranged in conjunction with the automatic voltage dividing switch circuit, and is used to control the relay control switch in the automatic voltage dividing switch circuit through the relay in the relay control circuit.

[0009] In combination with the first possible implementation of the first aspect, in a second possible implementation of the first aspect, the automatic voltage-dividing switch circuit includes a relay control switch and an arc extinguishing circuit, the relay control switch is connected in parallel with the voltage-dividing resistor; the arc extinguishing circuit is connected in parallel with the relay control switch.

[0010] In combination with the second possible implementation manner of the first aspect, in a third possible implementation manner of the first aspect, the arc extinguishing circuit includes a resistor R7 and a capacitor C4, and the resistor R7 and the capacitor C4 are connected in series.

[0011] In combination with the third possible implementation of the first aspect, in a fourth possible implementation of the first aspect, the AC voltage detection circuit includes a diode D4, a resistor R8, a resistor R9, a resistor R10 and a capacitor C5, the power switch is connected in series with a diode D4, a resistor R8 and a resistor R9, and the resistor R9 is connected to the relay control circuit; the power switch is connected in series with a diode D4, a resistor R8, a resistor R9 and a resistor R10, and the resistor R10 is connected to the relay control circuit; the capacitor C5 is connected in parallel at both ends of the resistor R10.

[0012] In combination with the fourth possible implementation manner of the first aspect, in a fifth possible implementation manner of the first aspect, the relay control circuit includes an N-MOS tube Q1, a P-MOS tube Q2, a relay K1, a diode D3, a resistor R11 and a resistor R12, the resistor R9 is connected to the G pole of the P-MOS tube Q2; the resistor R10 is connected to the D pole of the P-MOS tube Q2; the S pole of the P-MOS tube Q2 is connected to the G pole of the N-MOS tube Q1, and the D pole of the P-MOS tube Q2 is connected to the S pole of the N-MOS tube Q1; the voltage output end of the power supply circuit is connected to the resistor R12, the resistor R12 is connected to the G pole of the N-MOS tube Q1, and the voltage output end of the power supply circuit is connected to the relay K1, the relay K1 is connected to the D pole of the N-MOS tube Q1, the diode D3 is reversely connected between the voltage output end of the power supply circuit and the D pole of the N-MOS tube Q1, and the relay K1 is arranged in cooperation with the automatic voltage dividing switch circuit to control the relay control switch in the automatic voltage dividing switch circuit through the relay K1.

[0013] In combination with the first aspect, in a sixth possible implementation manner of the first aspect, the heating portion includes a heating element and a temperature fuse connected in series.

[0014] In combination with the sixth possible implementation manner of the first aspect, in a seventh possible implementation manner of the first aspect, the heating portion further includes a thermostat, and the thermostat is connected in series with the heating element and the temperature fuse.

[0015] In combination with the first aspect, in an eighth possible implementation manner of the first aspect, the water supply unit includes a diode and a water pump connected in series.

[0016] In a second aspect, an embodiment of the present application provides a multi-power supply garment steamer, comprising a multi-power supply garment steamer control circuit based on automatic voltage division as described in any one of the first aspect or possible implementation methods of the first aspect, wherein the multi-power supply garment steamer control circuit based on automatic voltage division is built into the multi-power supply garment steamer, and the multi-power supply garment steamer control circuit based on automatic voltage division enables the multi-power supply garment steamer to operate normally under different power supply voltages.

[0017] Beneficial effects:

[0018] The load circuit (including the heating part and the water supply part connected in parallel) is connected through the power switch of the multi-power supply garment steamer control circuit based on automatic voltage division, and the load circuit is connected to the automatic voltage division control circuit to form a multi-power supply garment steamer control circuit based on automatic voltage division. The multi-power supply garment steamer control circuit based on automatic voltage division is connected to both ends of the power supply. The automatic voltage division control circuit is used to connect the control loop that enables the multi-power supply garment steamer to work normally according to whether the voltage peak of the input voltage exceeds the set threshold, thereby realizing the normal operation of the multi-power supply garment steamer under different power supply voltages.

[0019] In order to make the above-mentioned objects, features and advantages of the present application more obvious and easy to understand, preferred embodiments are specifically cited below and described in detail with reference to the attached drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments of the present application will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0021] Figure 1 A schematic diagram of a multi-power garment steamer control circuit based on automatic voltage division provided in an embodiment of the present application.

[0022] Icons: 11-power connector; 12-power switch; 13-heating part; 131-heating element; 132-temperature fuse; 14-water supply part; 141-diode; 142-water pump; 15-automatic voltage division control circuit; 151-voltage division resistor; 152-power supply circuit; 153-AC voltage detection circuit; 154-relay control circuit; 155-automatic voltage division switch circuit. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application.

[0024] In the description of this application, it should be noted that the terms "inside", "outside", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the product of the application is usually placed when in use, which is only for the convenience of describing this application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on this application. In addition, the terms "first", "second", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0025] It should also be noted that, unless otherwise clearly specified and limited, the terms "set" and "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be a connection between the two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances. In addition, when introducing the connection relationship between the components in the circuit in this embodiment, in order to facilitate understanding and make the current flow direction clearer, the description method of "first" and "later" to indicate the order is used, which should not be regarded as a limitation of this application. The order of connection of components in actual products is not prioritized.

[0026] An embodiment of the present application provides a multi-power garment steamer, in which a multi-power garment steamer control circuit based on automatic voltage division is built into the multi-power garment steamer, and the multi-power garment steamer control circuit based on automatic voltage division enables the multi-power garment steamer to operate normally under different power supply voltages.

[0027] In order to realize the normal operation of the multi-power garment steamer under different power supply voltages, this embodiment designs an automatic adjustment type multi-power garment steamer control circuit based on automatic voltage division. Figure 1 , Figure 1 A schematic diagram of a multi-power garment steamer control circuit based on automatic voltage division provided in an embodiment of the present application.

[0028] In this embodiment, a multi-power supply garment steamer control circuit based on automatic voltage division includes a power switch 12, a load circuit and an automatic voltage division control circuit 15, the load circuit includes a heating part 13 and a water supply part 14 connected in parallel, the power switch 12 is connected to the load circuit, the load circuit includes a heating part 13 and a water supply part 14 connected in parallel, the load circuit is connected to the automatic voltage division control circuit 15, and a multi-power supply garment steamer control circuit based on automatic voltage division is formed. The multi-power supply garment steamer control circuit based on automatic voltage division is connected at both ends of the power supply, and is used to connect a control loop that enables the multi-power supply garment steamer to work normally according to whether the voltage peak of the input voltage exceeds a set threshold.

[0029] In this embodiment, the multi-power supply garment steamer control circuit based on automatic voltage division may further include a power connector 11, and the power connector 11 connecting two ends of a power supply is used as an example for description.

[0030] The power connector 11 includes a first contact piece (i.e., one contact point connected to the power source) and a second contact piece (another contact point connected to the power source). The first contact piece is connected in series with the power switch 12, and then connected to the load circuit, which is then connected to the automatic voltage division control circuit 15 and then back to the second contact piece, forming a multi-power supply garment steamer control circuit based on automatic voltage division.

[0031] The automatic voltage dividing control circuit 15 can connect the voltage dividing resistor 151 in the automatic voltage dividing control circuit 15 when the voltage peak of the working voltage exceeds the set threshold, and short-circuit the voltage dividing resistor 151 in the automatic voltage dividing control circuit 15 when the voltage peak of the working voltage does not exceed the set threshold, thereby forming different control loops to achieve normal operation of the multi-power supply hanging iron under different power supply voltages.

[0032] In order to ensure the safety of the heating part 13, the heating part 13 may include a heating element 131 and a temperature fuse 132 connected in series. The temperature fuse 132 may be fused when the heating part 13 is overheated, thereby protecting the multi-power supply garment steamer.

[0033] In order to maintain a certain temperature level when the multi-power garment steamer is working, the heating part 13 also includes a temperature controller ( Figure 1 The temperature controller is connected in series with the heating element 131 and the temperature fuse 132 to realize temperature control.

[0034] The water supply unit 14 may include a diode 141 and a water pump 142 . The diode 141 and the water pump 142 (pulse pump) of the water supply unit 14 are connected in series. The diode 141 allows half a cycle of the alternating current (sine wave) to pass through to power the water pump 142 and ensure the normal operation of the water pump 142 .

[0035] In this embodiment, the automatic voltage division control circuit 15 includes a voltage division resistor 151 , a power supply circuit 152 , an AC voltage detection circuit 153 , a relay control circuit 154 , and an automatic voltage division switch circuit 155 .

[0036] The voltage-dividing resistor 151 is connected in parallel with the automatic voltage-dividing switch circuit 155, and the voltage-dividing resistor 151 is connected between the load circuit and the second contact piece; after the first contact piece is connected in series with the power switch 12, it is also connected to the power supply circuit 152, and the power supply circuit 152 is connected to the relay control circuit 154 (for powering the relay); after the first contact piece is connected in series with the power switch 12, it is also connected to the AC voltage detection circuit 153, and the AC voltage detection circuit 153 is connected to the relay control circuit 154; the relay control circuit 154 is arranged in conjunction with the automatic voltage-dividing switch circuit 155, and is used to control the relay control switch in the automatic voltage-dividing switch circuit 155 through the relay in the relay control circuit 154.

[0037] For example, the specific power supply circuit 152 can be found in Figure 1The power supply circuit 152 located in the upper part is a commonly used power supply circuit 152 in the field of small household appliances. It belongs to the existing design and will not be described here. It can be used to power the relay and related control circuits. Among them, F1 is a fuse, R1, R2, R3, R4, R5, and R6 are resistors, R5 is a sliding resistor, D1 and D2 are diodes, C1, C2, and C3 are capacitors, L1 is an inductor, AC_L is the AC input voltage terminal, VCC is the voltage output terminal, which supplies power to the relay and related circuits, and GND indicates grounding.

[0038] Exemplarily, the automatic voltage-dividing switch circuit 155 includes a relay control switch and an arc extinguishing circuit, wherein the relay control switch is connected in parallel with the voltage-dividing resistor 151; and the arc extinguishing circuit is connected in parallel with the relay control switch. The arc extinguishing circuit includes a resistor R7 and a capacitor C4, wherein the resistor R7 and the capacitor C4 are connected in series. The arc extinguishing circuit is mainly used to eliminate the arc that may be generated when the relay control switch is disconnected, thereby reducing the impact of the arc.

[0039] The AC voltage detection circuit 153 may include a diode D4, a resistor R8, a resistor R9, a resistor R10 and a capacitor C5. After the first contact piece is connected in series with the power switch 12, the diode D4, the resistor R8 and the resistor R9 are connected in series, and then connected to the relay control circuit 154; after the first contact piece is connected in series with the power switch 12, the diode D4, the resistor R8, the resistor R9 and the resistor R10 are connected in series, and then connected to the relay control circuit 154; the capacitor C5 is connected in parallel at both ends of the resistor R10.

[0040] The relay control circuit 154 may include an N-MOS tube Q1, a P-MOS tube Q2, a relay K1, a diode D3, a resistor R11 and a resistor R12. After the first contact piece is connected in series with the power switch 12, a diode D4, a resistor R8 and a resistor R9 are connected in series, and then connected to the G pole of the P-MOS tube Q2; after the first contact piece is connected in series with the power switch 12, a diode D4, a resistor R8, a resistor R9 and a resistor R10 are connected in series, and then connected to the D pole of the P-MOS tube Q2; the S pole of the P-MOS tube Q2 is connected to the G pole of the N-MOS tube Q1, and the P-MOS tube Q2 is connected The D pole of the power supply circuit 152 is connected to the S pole of the N-MOS tube Q1; the voltage output end (i.e., VCC) of the power supply circuit 152 is connected to the resistor R12 and then to the G pole of the N-MOS tube Q1, and the voltage output end of the power supply circuit 152 is connected to the relay K1 and then to the D pole of the N-MOS tube Q1. The diode D3 is reversely connected between the voltage output end of the power supply circuit 152 and the D pole of the N-MOS tube Q1, and the relay K1 is arranged in conjunction with the automatic voltage-dividing switch circuit 155 to control the relay control switch in the automatic voltage-dividing switch circuit 155 through the relay K1. The D pole of the P-MOS tube Q2 is grounded.

[0041] Based on this circuit design, in the AC voltage detection circuit 153, when the voltage on the live wire is positive, a low-voltage DC signal that increases as the AC voltage increases is obtained after voltage division and rectification through diode D4, resistor R8, resistor R9, and resistor R10, and capacitor C5 is charged at the same time; when the voltage on the live wire is negative, due to the unidirectional conduction characteristic of diode D4, the loop composed of diode D4, resistor R8, resistor R9, resistor R10 and the neutral wire is blocked, and the voltage on resistor R10 is maintained at a relatively stable value by the discharge of capacitor C5, ensuring that the gate (G pole) voltage of P-MOS tube Q2 will not change with the regular changes of AC voltage. When the peak value Umax of the input AC power voltage does not exceed the set threshold value (for example, 163V), the low-voltage DC voltage signal after voltage division and rectification by the AC voltage detection circuit 153 is less than the gate (G pole) driving limit voltage Vg(th) of the P-MOS tube Q2, so the D pole (drain) and S pole (source) of the P-MOS tube Q2 are blocked. At the same time, due to the existence of the pull-up resistor R12, the gate (G pole) of the N-MOS tube Q1 is at a high level. Then, the D pole (drain) and S pole (source) of the N-MOS tube Q1 are turned on, and the load end of the relay K1 is turned on, that is, the relay control switch in the automatic voltage division switch circuit 155 is closed, the hanging iron works normally, and the voltage division resistor 151 is short-circuited, and no voltage division occurs. When the input mains voltage exceeds the set threshold value (e.g. 163V), the low-voltage DC voltage signal after voltage division and rectification by the AC voltage detection circuit 153 is greater than the gate drive limit voltage Vg(th) of the P-MOS tube Q2, so the D pole (drain) and S pole (source) of the P-MOS tube Q2 are turned on, and the gate of the N-MOS tube Q1 is pulled to a low level, then the D pole (drain) and S pole (source) of the N-MOS tube Q1 are blocked, and the load end of the relay K1 is not turned on, that is, the relay control switch in the automatic voltage division switch circuit 155 is disconnected, and the voltage division resistor 151 is connected to the loop and participates in the voltage division. The resistive load and the voltage division resistor 151 work together. Since the voltage division resistor 151 is a specific resistance value, it is ensured that the voltage of the hanging iron is limited to the rated voltage range, ensuring the normal operation of the hanging iron. By adjusting the resistance value of the resistor R10, different set thresholds can be set.

[0042] In summary, the embodiment of the present application provides a multi-power garment steamer control circuit based on automatic voltage division and a multi-power garment steamer. After the power switch 12 is connected in series through the first contact piece of the power connector 11, the load circuit (including the heating part 13 and the water supply part 14 connected in parallel) is connected. The load circuit is then connected to the automatic voltage division control circuit 15 and returns to the second contact piece to form a multi-power garment steamer control circuit based on automatic voltage division. The voltage division resistor 151 in the automatic voltage division control circuit 15 is connected in parallel with the automatic voltage division switch circuit 155, and the voltage division resistor 151 is connected to the load circuit. The first contact piece is connected to the power switch 12 in series, and is also connected to the power supply circuit 152, and the power supply circuit 152 is connected to the relay control circuit 154; the first contact piece is connected to the power switch 12 in series, and is also connected to the AC voltage detection circuit 153, and the AC voltage detection circuit 153 is connected to the relay control circuit 154; the relay control circuit 154 is arranged in cooperation with the automatic voltage-dividing switch circuit 155, and is used to control the relay control switch in the automatic voltage-dividing switch circuit 155 through the relay in the relay control circuit 154. Therefore, when the voltage peak value of the working voltage exceeds the set threshold value, the voltage-dividing resistor 151 in the automatic voltage-dividing control circuit 15 can be connected, and when the voltage peak value of the working voltage does not exceed the set threshold value, the voltage-dividing resistor 151 in the automatic voltage-dividing control circuit 15 can be short-circuited, thereby forming different control loops, and realizing the normal operation of the multi-power supply hanging iron under different power supply voltages.

[0043] Based on this circuit design, in the AC voltage detection circuit 153, when the voltage on the live wire is positive, a low-voltage DC signal that increases as the AC voltage increases is obtained after voltage division and rectification through diode D4, resistor R8, resistor R9, and resistor R10, and capacitor C5 is charged at the same time; when the voltage on the live wire is negative, due to the unidirectional conduction characteristic of diode D4, the loop composed of diode D4, resistor R8, resistor R9, resistor R10 and the neutral wire is blocked, and the voltage on resistor R10 is maintained at a relatively stable value by the discharge of capacitor C5, ensuring that the gate (G pole) voltage of P-MOS tube Q2 will not change with the regular changes of AC voltage. When the peak value Umax of the input AC power voltage does not exceed the set threshold value (for example, 163V), the low-voltage DC voltage signal after voltage division and rectification by the AC voltage detection circuit 153 is less than the gate (G pole) driving limit voltage Vg(th) of the P-MOS tube Q2, so the D pole (drain) and S pole (source) of the P-MOS tube Q2 are blocked. At the same time, due to the existence of the pull-up resistor R12, the gate (G pole) of the N-MOS tube Q1 is at a high level. Then, the D pole (drain) and S pole (source) of the N-MOS tube Q1 are turned on, and the load end of the relay K1 is turned on, that is, the relay control switch in the automatic voltage division switch circuit 155 is closed, the hanging iron works normally, and the voltage division resistor 151 is short-circuited, and no voltage division occurs. When the input mains voltage exceeds the set threshold value (e.g. 163V), the low-voltage DC voltage signal after voltage division and rectification by the AC voltage detection circuit 153 is greater than the gate drive limit voltage Vg(th) of the P-MOS tube Q2, so the D pole (drain) and S pole (source) of the P-MOS tube Q2 are turned on, and the gate of the N-MOS tube Q1 is pulled to a low level, then the D pole (drain) and S pole (source) of the N-MOS tube Q1 are blocked, and the load end of the relay K1 is not turned on, that is, the relay control switch in the automatic voltage division switch circuit 155 is disconnected, and the voltage division resistor 151 is connected to the loop and participates in the voltage division. The resistive load and the voltage division resistor 151 work together. Since the voltage division resistor 151 is a specific resistance value, it is ensured that the voltage of the hanging iron is limited to the rated voltage range, ensuring the normal operation of the hanging iron. By adjusting the resistance value of the resistor R10, different set thresholds can be set.

[0044] The heating part 13 includes a heating element 131 and a temperature fuse 132 connected in series. The temperature fuse 132 can be blown when overheated to protect the multi-power garment steamer, and the heating part 13 can also include a thermostat to control the temperature of the heating element 131 to maintain a relatively stable level. The diode of the water supply part 14 and the water pump 142 (pulse pump) are connected in series. The diode allows half a cycle of the alternating current (sine wave) to pass through, powering the water pump 142 and ensuring the normal operation of the water pump 142. When the relay control switch in the automatic voltage-dividing switch circuit 155 is disconnected, the voltage-dividing resistor 151 is normally connected to the loop to divide the voltage, and normal operation is achieved under a high power supply voltage environment (for example, 200-240V before voltage division and 100-120V after voltage division); when the relay control switch is closed, the voltage-dividing resistor 151 is short-circuited, not connected to the loop, and no voltage division is performed, and low power supply voltage operation (for example, 100-120V) is achieved. In this way, components that can meet the normal operation under a 120V power supply voltage can be selected, and they can work normally under different power supply voltage conditions. The impedance selection of the voltage-dividing resistor 151 can be determined according to the impedance of the load, so as to achieve accurate voltage division and control the working voltage of the multi-power supply hanging ironing machine.

[0045] The above description is only an embodiment of the present application and is not intended to limit the protection scope of the present application. For those skilled in the art, the present application may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A multi-power supply garment steamer control circuit based on automatic voltage division, characterized in that: It includes a power switch, a load circuit and an automatic voltage division control circuit, wherein the load circuit includes a heating part and a water supply part connected in parallel. The power switch is connected to the load circuit, and the load circuit is connected to the automatic voltage division control circuit to form a multi-power supply garment steamer control circuit based on automatic voltage division. The multi-power supply garment steamer control circuit based on automatic voltage division is connected to both ends of the power supply, wherein the automatic voltage division control circuit is used to connect the control loop that enables the multi-power supply garment steamer to work normally according to whether the voltage peak of the input voltage exceeds a set threshold.

2. The multi-power supply garment steamer control circuit based on automatic voltage division according to claim 1, characterized in that: The automatic voltage division control circuit includes a voltage division resistor, a power supply circuit, an AC voltage detection circuit, a relay control circuit, and an automatic voltage division switch circuit. The voltage dividing resistor is connected in parallel with the automatic voltage dividing switch circuit; The power switch is connected to the power supply circuit, and the power supply circuit is connected to the relay control circuit; The power switch is connected to the AC voltage detection circuit, and the AC voltage detection circuit is connected to the relay control circuit; The relay control circuit is arranged in cooperation with the automatic voltage-dividing switch circuit, and is used to control the relay control switch in the automatic voltage-dividing switch circuit through the relay in the relay control circuit.

3. The multi-power supply garment steamer control circuit based on automatic voltage division according to claim 2, characterized in that: The automatic voltage-dividing switch circuit includes a relay control switch and an arc-extinguishing circuit. The relay control switch is connected in parallel with the voltage dividing resistor; The arc extinguishing circuit is connected in parallel with the relay control switch.

4. The multi-power supply garment steamer control circuit based on automatic voltage division according to claim 3, characterized in that: The arc extinguishing circuit includes a resistor R7 and a capacitor C4, and the resistor R7 and the capacitor C4 are connected in series.

5. The multi-power supply garment steamer control circuit based on automatic voltage division according to claim 4, characterized in that: The AC voltage detection circuit includes a diode D4, a resistor R8, a resistor R9, a resistor R10 and a capacitor C5. The power switch is connected in series with the diode D4, the resistor R8 and the resistor R9, and the resistor R9 is connected to the relay control circuit; The power switch is connected in series with the diode D4, the resistor R8, the resistor R9 and the resistor R10, and the resistor R10 is connected to the relay control circuit; The capacitor C5 is connected in parallel to both ends of the resistor R10.

6. The multi-power supply garment steamer control circuit based on automatic voltage division according to claim 5, characterized in that: The relay control circuit includes an N-MOS tube Q1, a P-MOS tube Q2, a relay K1, a diode D3, a resistor R11 and a resistor R12. The resistor R9 is connected to the G pole of the P-MOS tube Q2; The resistor R10 is connected to the D pole of the P-MOS tube Q2; The S pole of the P-MOS tube Q2 is connected to the G pole of the N-MOS tube Q1, and the D pole of the P-MOS tube Q2 is connected to the S pole of the N-MOS tube Q1; The voltage output end of the power supply circuit is connected to the resistor R12, the resistor R12 is connected to the G pole of the N-MOS tube Q1, and the voltage output end of the power supply circuit is connected to the relay K1, the relay K1 is connected to the D pole of the N-MOS tube Q1, the diode D3 is reversely connected between the voltage output end of the power supply circuit and the D pole of the N-MOS tube Q1, and the relay K1 is arranged in conjunction with the automatic voltage-dividing switch circuit to control the relay control switch in the automatic voltage-dividing switch circuit through the relay K1.

7. The multi-power supply garment steamer control circuit based on automatic voltage division according to claim 1, characterized in that: The heating part includes a heating element and a temperature fuse connected in series.

8. The multi-power supply garment steamer control circuit based on automatic voltage division according to claim 7, characterized in that: The heating unit further comprises a thermostat, which is connected in series with the heating element and the temperature fuse.

9. The multi-power supply garment steamer control circuit based on automatic voltage division according to claim 1, characterized in that: The water supply unit includes a diode and a water pump connected in series.

10. A multi-power garment steamer, characterized in that: It comprises a multi-power supply garment steamer control circuit based on automatic voltage division as described in any one of claims 1-9, wherein the multi-power supply garment steamer control circuit based on automatic voltage division is built into the multi-power supply garment steamer, and the multi-power supply garment steamer control circuit based on automatic voltage division enables the normal operation of the multi-power supply garment steamer under different power supply voltages.

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