CN105434097A

CN105434097A - Electric heating foot warmer

Info

Publication number: CN105434097A
Application number: CN201511008253.4A
Authority: CN
Inventors: 王志
Original assignee: Individual
Current assignee: Individual
Priority date: 2015-12-28
Filing date: 2015-12-28
Publication date: 2016-03-30

Abstract

The invention provides an electric heating foot warmer. The electric heating foot warmer is characterized by comprising a 220-V alternating current power supply, electric heating wires, a full-bridge rectifying circuit and a one-way controllable silicon control and trigger circuit. When people do homework or watch TV or handle official business in a room without heating or an air conditioner in winter, the actual problem can be solved by warming the feet through the electric heating foot warmer, people neither need to take off shoes nor need to change the shoes, the feet wearing the shoes can be directly placed on the foot warmer, and the electric heating foot warmer is more practical, more convenient and safer than various electric heating shoe sleeves which are launched in a market and towed with power lines. The circuits of the electric heating foot warmer have the advantages of being high in applicability, low in power consumption, high in working reliability and the like and are suitable for being used at sites such as a family and an office. The electric heating foot warmer is suitable for being developed in a factory in a batched mode.

Description

Electrical heating foot warmer

Technical field

The invention belongs to Electric automatic control and technical field of temperature control, is about a kind of electrical heating foot warmer.

Background technology

General foot has warmed up in the winter time, and whole body just feels not too cold; On the contrary, alter very abundant with it, once ice-cold under sole, will feel that whole body is terribly cold.The traditional Chinese medical science is often said, " all diseases are from cold, cold raw from foot ", we want to avoid cold to attack, and will carry out the warming of foot.So treat winter not only there is no heating installation, but also do not have to do the homework or see TV or office in air-conditioned room, use the warm both feet of electrical heating foot warmer just can solving practical problems, during use, you do not need to take off one's shoes, also footwear need not be changed, can the both feet wearing footwear be placed directly in above foot warmer, the electrically warmed shoe cover of the various traction power lines that it is released than market is practical, convenient, safety many.The circuit of electrical heating foot warmer has that the suitability is strong, low in energy consumption, functional reliability high, and be adapted at the place such as family, office and use, electrical heating foot warmer of the present invention is adapted at factory's batch exploitation.

Below describe that electrical heating foot warmer of the present invention is involved necessary in implementation process, guardian technique content in detail.

Summary of the invention

Goal of the invention and beneficial effect: treat winter not only there is no heating installation, but also do not have to do the homework or see TV or office in air-conditioned room, use the warm both feet of electrical heating foot warmer just can solving practical problems, during use, you do not need to take off one's shoes, also footwear need not be changed, can the both feet wearing footwear be placed directly in above foot warmer, the electrically warmed shoe cover of the various traction power lines that it is released than market is practical, convenient, safety many.The circuit of electrical heating foot warmer has that the suitability is strong, low in energy consumption, functional reliability high, and be adapted at the place such as family, office and use, electrical heating foot warmer of the present invention is adapted at factory's batch exploitation.

Circuit working principle: the circuit of electrical heating foot warmer forms relaxor by linear potentiometer RP, resistance R1, electric capacity C1, resistance R2 and silicon rectifier diode D1, the pulse-triggered unidirectional controllable silicon S CR produced with it.When the two ends of electric capacity C1 are charged to about 60V voltage, silicon rectifier diode D1 conducting, unidirectional controllable silicon S CR is triggered conducting, and heating wire is by full-bridge rectification element QZ electrified regulation.Linear adjustment potentiometer RP can change the charge rate of electric capacity C1, can change the frequency of oscillation of relaxation agitator, thus changes the unidirectional controllable silicon S CR angle of flow, and the voltage at heating wire two ends also changes thereupon, realizes foot warmer and regulates temperature object.

Technical characteristic: electrical heating foot warmer, it comprises 220V alternating current power supply, heating wire, full bridge rectifier, one-way SCR control and circuits for triggering, it is characterized in that:

Full bridge rectifier: it is made up of 220V alternating current power supply, full-bridge rectification element QZ and heating wire, one end of full-bridge rectification element QZ ac power input end is connect after the live wire end L serial connection heating wire of 220V alternating current power supply, the zero line side N of 220V alternating current power supply connects the other end of full-bridge rectification element QZ ac power input end, the positive pole connection circuit positive pole VCC of full-bridge rectification element QZ outfan, the negative pole connection circuit ground GND of full-bridge rectification element QZ outfan;

One-way SCR controls and circuits for triggering: it is by unidirectional controllable silicon S CR, linear potentiometer RP, resistance R1, electric capacity C1, resistance R2 and silicon rectifier diode D1 forms, the anode connection circuit positive pole VCC of unidirectional controllable silicon S CR, the negative electrode connection circuit ground GND of unidirectional controllable silicon S CR, the control pole of unidirectional controllable silicon S CR connects the negative pole of silicon rectifier diode D1, the positive pole of silicon rectifier diode D1 connects one end of electric capacity C1 and one end of resistance R1 by resistance R2, the other end connection circuit ground GND of electric capacity C1, the other end of resistance R1 connects one end of linear potentiometer RP, the other end of linear potentiometer RP and movable end connection circuit positive pole VCC thereof.

Accompanying drawing explanation

Accompanying drawing 1 is the circuit working schematic diagram of an electrical heating foot warmer provided by the invention embodiment; The cathode output end connection circuit positive pole VCC of full bridge rectifier, the cathode output end connection circuit ground GND of full bridge rectifier.

Detailed description of the invention

According to the electrical heating foot warmer circuit working schematic diagram shown in accompanying drawing 1 and accompanying drawing explanation, and according to annexation between components and parts in each several part circuit described in summary of the invention, and components and parts technical parameter described in embodiment requires and circuit production main points are carried out enforcement and can be realized the present invention, is further described correlation technique of the present invention below in conjunction with embodiment.

The technical parameter of components and parts and selection requirement

QZ is full-bridge rectification element, and operating current is 2A, and withstand voltage is 400V;

D1 is silicon rectifier diode, selects model to be IN4004;

Unidirectional controllable silicon S CR selects model to be 2N6565, or selected parameter is any model of 1A/400V;

Resistance selects power to be 1/4W metalfilmresistor, and the resistance of resistance R1 is 100K Ω, and the resistance of resistance R2 is 22K Ω;

The resistance of linear potentiometer RP is 360K Ω, and the power selected is 2W;

The optional electric capacity of the dacron of electric capacity C1, its capacity is 0.022 μ F, withstand voltage for 400V;

The parameter of heating wire is 90 ~ 100W/220V, recommends to adopt electrical heating wire in electric blanket to make.

Circuit production main points and circuit debugging

Because the circuit structure of electrical heating foot warmer is fairly simple, comparison is easy, as long as the electronic devices and components performance generally selected is intact, and the components and parts annexation to specifications in accompanying drawing 1 is welded, physical connection line and welding quality are through carefully checking correctly, and circuit of the present invention does not substantially need to carry out any debugging and can normally work;

When circuit debugging, first the resistance of linear potentiometer RP is transferred to minima, the alternating voltage surveying heating wire two ends with circuit tester should at more than 200V, if suitably can reduce the resistance of resistance R1 lower than 200V;

Adjust linear potentiometer RP to make the AC voltage range at heating wire two ends reach maximum again, namely the regulation of electrical circuit has accused.

Circuit structure design of the present invention, components' placement; and its face shaping and size etc. thereof are not all key technologies of the present invention; neither application claims protection guardian technique content; because not affecting the realization of specific implementation process of the present invention and goal of the invention, therefore do not illustrate one by one in the description.

Claims

1. an electrical heating foot warmer, it comprises 220V alternating current power supply, heating wire, full bridge rectifier, one-way SCR control and circuits for triggering, it is characterized in that:

Described full bridge rectifier is made up of 220V alternating current power supply, full-bridge rectification element QZ and heating wire, one end of full-bridge rectification element QZ ac power input end is connect after the live wire end L serial connection heating wire of 220V alternating current power supply, the zero line side N of 220V alternating current power supply connects the other end of full-bridge rectification element QZ ac power input end, the positive pole connection circuit positive pole VCC of full-bridge rectification element QZ outfan, the negative pole connection circuit ground GND of full-bridge rectification element QZ outfan;

Described one-way SCR control and circuits for triggering are by unidirectional controllable silicon S CR, linear potentiometer RP, resistance R1, electric capacity C1, resistance R2 and silicon rectifier diode D1 forms, the anode connection circuit positive pole VCC of unidirectional controllable silicon S CR, the negative electrode connection circuit ground GND of unidirectional controllable silicon S CR, the control pole of unidirectional controllable silicon S CR connects the negative pole of silicon rectifier diode D1, the positive pole of silicon rectifier diode D1 connects one end of electric capacity C1 and one end of resistance R1 by resistance R2, the other end connection circuit ground GND of electric capacity C1, the other end of resistance R1 connects one end of linear potentiometer RP, the other end of linear potentiometer RP and movable end connection circuit positive pole VCC thereof.