CN104398229A - Wireless powered shoe dryer - Google Patents

Abstract

The invention discloses a shoe dryer with wireless power supply, which includes a power supply wireless transmitting module and a wireless receiving heating module; the power supply wireless transmitting module includes a power rectifying circuit, a voltage stabilizing circuit and a power transmitting circuit; The AC power supply is rectified to DC voltage, and the other AC power supply is rectified by stepping down the voltage of the transformer; the voltage stabilization circuit filters out the high-frequency signal from the DC voltage, and after filtering, it is used as the transmission energy of the power transmitting chip, and the rectified signal after the step-down Filter out the low-frequency signal and stabilize the voltage to provide working power for the power transmitting chip; the power transmitting circuit transmits the power signal through the oscillating transmitting loop; the wireless receiving heating module receives the electric field signal output by the transmitting module through the oscillating loop, and The electric energy sensed is converted into heat energy to dry shoes; the invention can heat conveniently and safely, and avoids wires being tied down, and is a shoe dryer with wireless power supply.

Description

A wireless powered shoe dryer

technical field

The invention relates to the field of daily necessities, in particular to a shoe dryer with wireless power supply.

Background technique

In the prior art, the shoe dryer usually uses power supply, battery power supply or solar panel to drive the heating element inside the shoe dryer to generate heat and eliminate the moisture in the shoes, but there are wires or need to be tied up during use. Frequent replacement of dry batteries makes it inconvenient to use. For this reason, we have developed a shoe dryer with wireless power supply. Through the improvement of the circuit, the shoe dryer can be heated conveniently and safely, and it avoids the entanglement of wires.

Contents of the invention

The object of the present invention is to overcome the deficiencies of the prior art and provide a wirelessly powered shoe dryer that can be heated conveniently and safely, and avoids wires being tied down.

In order to achieve the above purpose, the technical solution adopted by the present invention is: a shoe dryer with wireless power supply, including a power wireless transmitting module, a wireless receiving heating module, and a power switch; the power wireless transmitting module includes a power rectifying circuit and a voltage stabilizing circuit and a power transmitting circuit; the power rectifying circuit rectifies one AC power supply into a DC voltage, and the other AC power supply is rectified by stepping down a transformer; the voltage stabilizing circuit filters out high-frequency signals for the DC voltage, and uses it as a power transmitting chip after filtering transmit energy, and filter out the low-frequency signal and stabilize the voltage of the rectified signal after step-down to provide working power for the power transmitting chip; the power transmitting circuit includes a coil, a capacitor, and a wireless power supply chip, and the wireless power supply chip has three terminals , wherein one end is the power input end, the other end is the signal transmitting end, and the last end is grounded; the transmitting end transmits the power signal through an oscillating transmitting loop composed of coils and capacitors; the wireless receiving heating module receives the signal through the oscillating loop The electric field signal output by the transmitter module converts the sensed electric energy into heat energy to dry shoes. the

Preferably, the power supply wireless transmission module also includes a work indication circuit and a temperature protection circuit; the work indication circuit can be used to indicate the working state of the power supply wireless transmission module; the temperature protection circuit includes a first thermistor, and the first A thermistor is a thermistor with a positive temperature coefficient, the first thermistor is connected to the coil, and when the temperature rises, the resistance of the first thermistor increases to limit the current of the power wireless transmitting module , to reduce output power.

Preferably, the wireless receiving heating module is also provided with a second thermistor, the second thermistor is a thermistor with a positive temperature coefficient, and when the temperature rises, the temperature of the second thermistor The resistance value is increased to reduce the heating current and protect the shoes from being burned.

Due to the application of the above-mentioned technical solution, the present invention has the following advantages compared with the prior art:

1. Since the present invention places a wireless receiving and heating device inside the shoes to be dried, and correspondingly has a wireless power supply transmitting device, the wireless power supply transmitter emits a magnetic energy signal, and the wireless power supply receiving and heating device receives the magnetic energy signal and heats it, avoiding It is more convenient to use without the entanglement of wires;

2. A wireless power supply transmitter module can be used for heating multiple shoes at the same time;

3. Both the controller and the heating module are equipped with a temperature protection function to prevent the accumulated heat from being too high and causing damage to the shoes;

4. The present invention is simple in structure, easy to use, and suitable for popularization and use.

Description of drawings

Below in conjunction with accompanying drawing, technical solution of the present invention will be further described:

Accompanying drawing 1 is the circuit diagram of the wireless power supply transmitting module of the wireless power supply shoe dryer of the present invention;

Accompanying drawing 2 is the circuit diagram of the wireless power supply receiving heating module of the wireless power supply shoe dryer according to the present invention;

Detailed ways

The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

Accompanying drawing 1-2 is the shoe dryer with wireless power supply according to the present invention, which includes a power wireless transmitting module, a wireless receiving heating module, and a power switch S1; the power wireless transmitting module includes a power rectifying circuit, a voltage stabilizing circuit, and a working instruction circuit, power transmission circuit and temperature protection circuit; the power supply rectification circuit includes a rectifier bridge D1, a rectifier bridge D2, and a transformer T1. It is rectified to a DC voltage of about 310V, and the other power supply is stepped down to 10V by a transformer with a ratio of 22:1, and rectified by a rectifier bridge D2; the voltage stabilizing circuit includes capacitor C1, capacitor C2, capacitor C4, inductor L1, Resistor R1, voltage regulator tube D3, the capacitor C1 filters high-frequency signals for a DC voltage of about 310V, and the capacitor C2, resistor R1, and inductor L1 are filtered and used as the transmitting energy of the power transmitting chip; the capacitor C4 is for The signal rectified by the rectifier bridge D2 filters out low-frequency signals, and the regulator tube D3 stabilizes the voltage at 12V to provide working power for the power transmitting chip; the working indication circuit includes a resistor R2 and a light-emitting diode D4, and the resistor R2 and the light-emitting diode D4 Constitute a working instruction to indicate the working state of the system; the power transmitting circuit includes a coil L2, a capacitor C3, and a wireless power supply chip VOX330MPO5S, and the wireless power supply chip VOX330MPO5S has three terminals, one of which is a power input terminal, and the other terminal is a signal transmitting terminal , the last end is grounded; the transmitting end transmits the power signal through the oscillating transmitting circuit formed by the coil L2 and the capacitor C3; the temperature protection circuit includes a first thermistor PTC0, and the first thermistor PTC0 is A thermistor with a positive temperature coefficient, the first thermistor PTC0 is connected to the coil L2, and when the temperature rises, the resistance of the first thermistor PTC0 increases to limit the current of the power wireless transmitting module to Reduce the output power; the wireless receiving heating module includes a capacitor C5, an inductor L3, a resistor R3, and a thermistor PTC1, and the capacitor C5 and the inductor L3 form an oscillating circuit to receive the electric field signal output by the transmitting module; the resistor R3 is connected in parallel to the capacitor The two ends of C5 are usually heating wires, and the resistor R3 converts the electric energy sensed at both ends of the capacitor C5 into heat energy for drying shoes; the wireless receiving heating module is also provided with a second thermistor PTC1, and the second thermistor The resistor PTC1 is a thermistor with a positive temperature coefficient. When the temperature rises, the resistance of the second thermistor PTC1 increases to reduce the heating current and protect the shoes from being burned.

When in use: people put the wireless receiving heating module into the shoes to be dried, then put the shoes on the power wireless transmitting module, turn on the power switch S1, the wireless power supply chip VOX330MPO5S in the power wireless transmitting module starts to work, through The oscillating transmitting circuit composed of coil L2 and capacitor C3 converts electric energy into magnetic energy and sends it out. At this time, the wireless receiving heating module in the shoe and the oscillating receiving circuit composed of capacitor C5 and inductance L3 convert the magnetic energy emitted from the wireless transmitting module of the power supply into The electric energy and the electric current are heated by adding the resistor R3 so as to heat the shoes. the

In this embodiment, the area of the transmitting coil of the transmitting module can also be appropriately increased to dry multiple shoes at the same time. The distance between the power wireless transmitting module and the wireless receiving module is about 20mm, which can prevent the power wireless transmitting module from being overloaded.

Due to the application of the above-mentioned technical solution, the present invention has the following advantages compared with the prior art:

1. Since the present invention places a wireless receiving and heating device inside the shoes to be dried, and correspondingly has a wireless power supply transmitting device, the wireless power supply transmitter emits a magnetic energy signal, and the wireless power supply receiving and heating device receives the magnetic energy signal and heats it, avoiding It is more convenient to use without the entanglement of wires;

2. A wireless power supply transmitter module can be used for heating multiple shoes at the same time;

3. Both the controller and the heating module are equipped with a temperature protection function to prevent the accumulated heat from being too high and causing damage to the shoes;

4. The present invention is simple in structure, easy to use, and suitable for popularization and use.

The above-mentioned embodiments are only to illustrate the technical conception and characteristics of the present invention. Substantial equivalent changes or modifications shall fall within the protection scope of the present invention.

Claims (3)

1. A shoe dryer with wireless power supply, characterized in that: it includes a power supply wireless transmitting module, a wireless receiving heating module, and a power switch; the power supply wireless transmitting module includes a power rectifying circuit, a voltage stabilizing circuit and a power transmitting circuit; The power rectification circuit rectifies one AC power source into a DC voltage, and the other AC power source is rectified by stepping down the transformer; the voltage stabilization circuit filters out the high-frequency signal from the DC voltage, and uses it as the transmitting energy of the power transmitting chip after filtering, and reduces the voltage. The compressed rectified signal filters out the low-frequency signal and stabilizes the voltage to provide working power for the power transmitting chip; the power transmitting circuit includes a coil, a capacitor, and a wireless power supply chip, and the wireless power supply chip has three terminals, one of which is the power input terminal , the other end is a signal transmitting end, and the last end is grounded; the transmitting end transmits the power signal through an oscillating transmitting loop composed of a coil and a capacitor; the wireless receiving heating module receives the electric field signal output by the transmitting module through the oscillating loop, Convert the sensed electric energy into heat energy to dry shoes. 2. The shoe dryer with wireless power supply according to claim 1, characterized in that: the power supply wireless transmission module also includes a work indication circuit and a temperature protection circuit; the work indication circuit can be used to indicate the work of the power supply wireless transmission module State; the temperature protection circuit includes a first thermistor, the first thermistor is a thermistor with a positive temperature coefficient, the first thermistor is connected to the coil, and when the temperature rises, the first thermistor The resistance value of a thermistor is increased to limit the current of the wireless transmission module of the power supply, so as to reduce the output power. 3. The shoe dryer with wireless power supply according to claim 1, characterized in that: the wireless receiving heating module is also provided with a second thermistor, and the second thermistor has a positive temperature coefficient As for the thermistor, when the temperature rises, the resistance of the second thermistor increases to reduce the heating current and protect the shoes from being burned.