CN213027844U

CN213027844U - Garment steamer control circuit with transformer

Info

Publication number: CN213027844U
Application number: CN202021842985.XU
Authority: CN
Inventors: 黄佳诚; 吴学良; 黄家成; 甄健康; 甄瑜; 何坤钊; 黄嘉炽; 简子庆; 林明栋
Original assignee: Zhongshan Huikong Medical Technology Co ltd
Current assignee: Zhongshan Huikong Medical Technology Co ltd
Priority date: 2020-08-28
Filing date: 2020-08-28
Publication date: 2021-04-20
Anticipated expiration: 2030-08-28

Abstract

The utility model discloses a garment steamer control circuit with a transformer; the system comprises a voltage-stabilized power supply circuit and a motor control circuit, wherein the voltage-stabilized power supply circuit adopts a transformer to perform voltage reduction and power supply; the transformer is provided with a primary coil and a secondary coil, and the insulation isolation level of the transformer is higher than that of a resistance-capacitance circuit, so that the electricity consumption of other circuits and low-voltage electricity consumption parts in the circuit is safer, and the safety of the circuit is improved; in addition, the transformer can be installed with the circuit board separation, is favorable to the miniaturization of garment steamer design.

Description

Garment steamer control circuit with transformer

Technical Field

The utility model relates to a circuit, especially a control circuit.

Background

At present, most of control circuit boards used by the garment steamer adopt the design of a resistance-capacitance voltage reduction circuit, but the safety of low-voltage electric components cannot be well guaranteed due to the low insulation isolation level of the design; in addition, the circuit board adopting the design is often large in size and cannot well meet the design requirement of miniaturization of the garment steamer.

Disclosure of Invention

In order to overcome the defects of the prior art, the utility model provides a garment steamer control circuit with a transformer.

The utility model provides a technical scheme that its technical problem adopted is:

a garment steamer control circuit with a transformer; the motor voltage stabilizing power supply comprises a voltage stabilizing power supply circuit and a motor control circuit, wherein the voltage stabilizing power supply circuit adopts a transformer to carry out voltage reduction and power supply.

Preferably, the voltage-stabilized power supply circuit comprises a transformer T1, a fuse F1, a bridge stack D1, a capacitor C1, a capacitor C2, a resistor R1, a polar capacitor EC1, a polar capacitor EC2 and a chip U1; a pin 1 of the transformer T1 is an electric supply live wire access end, a pin 2 is an electric supply zero line access end, a pin 3 is connected with a pin 2 of the bridge pile D1 through the fuse F1, and a pin 4 is connected with a pin 4 of the bridge pile D1; the 3 pin of the bridge stack D1 is grounded; the 1 pin of the bridge stack D1 is divided into four paths, the first path is connected with the 1 pin of the chip U1, the second path is grounded through the resistor R1, the third path is grounded through the polar capacitor EC1, and the fourth path is grounded through the capacitor C1; the 2 pin of the chip U1 is grounded; the 3 pins of the chip U1 are divided into three paths, the first path is connected with the motor control circuit, the second path is grounded through the polar capacitor EC2, and the third path is grounded through the capacitor C2.

Preferably, the motor control circuit comprises a resistor R3, a resistor R4, a resistor R5, a resistor R6, a resistor R7, a resistor R8, a polar capacitor EC3, a capacitor C3, a motor M1, a diode D1, a triode Q1 and a field effect transistor Q2; the base electrode of the triode Q1 is divided into two paths, one path is connected with the 3 pins of the chip U1 through the resistor R3, and the other path is grounded through the polar capacitor EC 3; the emitting electrode of the triode Q1 is divided into two paths, one path is grounded through the resistor R6, and the other path is connected with the grid electrode of the field effect transistor Q2 through the resistor R8; the collector of the triode Q1 is connected with the 3 pins of the chip U1 through the resistor R5; the drain electrode of the field effect transistor Q2 is connected with the 3 pins of the chip U1 through the motor M1 and the resistor R7 in sequence; one end of the capacitor C3 is connected with the drain electrode of the field effect transistor Q2, and the other end is connected with the node of the motor M1 and the resistor R7; the anode of the diode D1 is connected with the drain of the field effect transistor Q2, and the cathode is connected with the node of the motor M1 and the resistor R7; the source of the field effect transistor Q2 is grounded.

The utility model has the advantages that: the transformer of the utility model is provided with the primary coil and the secondary coil, and the insulation isolation grade of the transformer is higher than that of a resistance-capacitance circuit, so that the electricity consumption of other circuits and low-voltage electricity utilization parts in the circuit is safer, and the safety of the circuit is improved; in addition, the transformer can be installed with the circuit board separation, is favorable to the miniaturization of garment steamer design.

Drawings

The present invention will be further explained with reference to the drawings and examples.

FIG. 1 is a circuit schematic of a regulated power supply circuit;

fig. 2 is a circuit schematic of the motor control circuit.

Detailed Description

The directional or positional relationships "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., are those shown in the drawings, are merely for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be construed as limiting the invention.

A garment steamer control circuit with a transformer; the system comprises a voltage-stabilized power supply circuit and a motor control circuit, wherein the voltage-stabilized power supply circuit adopts a transformer to perform voltage reduction and power supply; the transformer T1 has a primary coil and a secondary coil, and the insulation isolation level of the transformer T1 is higher than that of a resistance-capacitance circuit, so that the electricity consumption of other circuits and low-voltage electricity-using components in the circuit is safer, and the safety of the circuit is improved; in addition, the transformer can be installed separately from the circuit board, which is beneficial to the miniaturization of the design of the garment steamer; in addition, under the same service condition, the service life of the circuit is longer than that of the resistance-capacitance voltage reduction circuit.

Referring to fig. 1, the regulated power supply circuit includes a transformer T1, a fuse F1, a bridge D1, a capacitor C1, a capacitor C2, a resistor R1, a polar capacitor EC1, a polar capacitor EC2, and a chip U1; a pin 1 of the transformer T1 is an electric supply live wire access end, a pin 2 is an electric supply zero line access end, a pin 3 is connected with a pin 2 of the bridge pile D1 through the fuse F1, and a pin 4 is connected with a pin 4 of the bridge pile D1; the 3 pin of the bridge stack D1 is grounded; the 1 pin of the bridge stack D1 is divided into four paths, the first path is connected with the 1 pin of the chip U1, the second path is grounded through the resistor R1, the third path is grounded through the polar capacitor EC1, and the fourth path is grounded through the capacitor C1; the 2 pin of the chip U1 is grounded; the 3 pins of the chip U1 are divided into three paths, the first path is connected with the motor control circuit, the second path is grounded through the polar capacitor EC2, and the third path is grounded through the capacitor C2; the model of the chip U1 is 7805; the low-voltage output power of the circuit is within 3W, the power loss of the circuit board designed by the circuit is lower than that of the circuit board adopting resistance-capacitance voltage reduction, and the unfavorable temperature rise of a product can be effectively reduced; in addition, compared with a circuit adopting a resistance-capacitance type voltage reduction design, the circuit has better load adaptability in a short time, and is more suitable for being applied to the aspect of motor control of a garment steamer.

Referring to fig. 2, the motor control circuit includes a resistor R3, a resistor R4, a resistor R5, a resistor R6, a resistor R7, a resistor R8, a polar capacitor EC3, a capacitor C3, a motor M1, a diode D1, a transistor Q1, and a field effect transistor Q2; the base electrode of the triode Q1 is divided into two paths, one path is connected with the 3 pins of the chip U1 through the resistor R3, and the other path is grounded through the polar capacitor EC 3; the emitting electrode of the triode Q1 is divided into two paths, one path is grounded through the resistor R6, and the other path is connected with the grid electrode of the field effect transistor Q2 through the resistor R8; the collector of the triode Q1 is connected with the 3 pins of the chip U1 through the resistor R5; the drain electrode of the field effect transistor Q2 is connected with the 3 pins of the chip U1 through the motor M1 and the resistor R7 in sequence; one end of the capacitor C3 is connected with the drain electrode of the field effect transistor Q2, and the other end is connected with the node of the motor M1 and the resistor R7; the anode of the diode D1 is connected with the drain of the field effect transistor Q2, and the cathode is connected with the node of the motor M1 and the resistor R7; the source electrode of the field effect transistor Q2 is grounded; the motor M1 is controlled to work by controlling the conduction of a field effect transistor Q2, the model of the field effect transistor Q2 is AO3400/SOT23NMOS, alternating current is input into a circuit through a transformer T1 and then sequentially passes through a bridge stack D1 and a voltage stabilizer 7805, and voltage-stabilized current is formed to supply power to the motor; the time required for the conduction of the field effect transistor Q2 is about 40 seconds, so that the circuit has a time delay function; at the moment of electrifying, the motor M1 cannot work immediately, and after the motor M1 works after being electrified for about 40 seconds, the safety of electricity utilization is ensured.

The above embodiments are not intended to limit the scope of the present invention, and those skilled in the art will not depart from the present invention as it relates to the whole concept of the present invention, and the equal modification and change will still belong to the scope of the present invention.

Claims

1. A garment steamer control circuit with a transformer; the motor voltage stabilizing circuit comprises a voltage stabilizing power supply circuit and a motor control circuit, and is characterized in that the voltage stabilizing power supply circuit adopts a transformer to perform voltage reduction power supply; the voltage-stabilized power supply circuit comprises a transformer T1, a fuse F1, a bridge stack D1, a capacitor C1, a capacitor C2, a resistor R1, a polar capacitor EC1, a polar capacitor EC2 and a chip U1; a pin 1 of the transformer T1 is an electric supply live wire access end, a pin 2 is an electric supply zero line access end, a pin 3 is connected with a pin 2 of the bridge pile D1 through the fuse F1, and a pin 4 is connected with a pin 4 of the bridge pile D1; the 3 pin of the bridge stack D1 is grounded; the 1 pin of the bridge stack D1 is divided into four paths, the first path is connected with the 1 pin of the chip U1, the second path is grounded through the resistor R1, the third path is grounded through the polar capacitor EC1, and the fourth path is grounded through the capacitor C1; the 2 pin of the chip U1 is grounded; the 3 pins of the chip U1 are divided into three paths, the first path is connected with the motor control circuit, the second path is grounded through the polar capacitor EC2, and the third path is grounded through the capacitor C2; the motor control circuit comprises a resistor R3, a resistor R4, a resistor R5, a resistor R6, a resistor R7, a resistor R8, a polar capacitor EC3, a capacitor C3, a motor M1, a diode D1, a triode Q1 and a field effect transistor Q2; the base electrode of the triode Q1 is divided into two paths, one path is connected with the 3 pins of the chip U1 through the resistor R3, and the other path is grounded through the polar capacitor EC 3; the emitting electrode of the triode Q1 is divided into two paths, one path is grounded through the resistor R6, and the other path is connected with the grid electrode of the field effect transistor Q2 through the resistor R8; the collector of the triode Q1 is connected with the 3 pins of the chip U1 through the resistor R5; the drain electrode of the field effect transistor Q2 is connected with the 3 pins of the chip U1 through the motor M1 and the resistor R7 in sequence; one end of the capacitor C3 is connected with the drain electrode of the field effect transistor Q2, and the other end is connected with the node of the motor M1 and the resistor R7; the anode of the diode D1 is connected with the drain of the field effect transistor Q2, and the cathode is connected with the node of the motor M1 and the resistor R7; the source of the field effect transistor Q2 is grounded.