KR200310608Y1 - Hot wire control device using DC power - Google Patents

Abstract

The present invention prevents generation of electromagnetic waves by rectifying general household AC power to DC power, and prevents generation of electromagnetic waves, and improves stability of temperature control by supplying a constant voltage. As a heat ray control device using a power source,

Between a bridge diode consisting of first to fourth diodes (D1, D2, D3, D4) for rectifying the AC power supplied from the driving power source into a DC power source, and the output terminal of the bridge diode. First and second capacitors C1 and C2 connected in series to each other to smooth output voltages, fifth and sixth diodes D5 and D6 connected to a heating wire to prevent reverse current flow, and the bridge The seventh diode D7 and the field effect transistor FET1, which are connected in series between the output terminals of the diode to determine the current flow direction and serve as a switch for determining the overall circuit operation according to the external control signal A. And an inductor L1 connected between a common contact of the first and second capacitors C1 and C2 and a common contact of the seventh diode and the field effect transistors D7 and FET1 to remove noise and improve a smoothing function. Configuration including It is characterized by.

Description

Heat wire control device using DC power supply {omitted}

The present invention relates to a heating wire control device using a direct current power source, and more particularly, an electric mat, an electric field plate having direct contact with a human body by constructing a circuit capable of removing electromagnetic waves from the heater body without changing the structure of the heater body. The present invention relates to a heat ray control device using a direct current power source such that the use of an electric heater is harmless to a human body.

Looking at the configuration and operation of the heater body and the temperature controller, such as a conventional electric plate and electric yoke, the heating wire and the heating wire for sensing the heat generated from the heating wire is covered with an insulator to form a cable for one heat generating unit of the heater body It is arranged reciprocally in zigzag inside. Then, a temperature controller is connected to the heater body to adjust the temperature.

Here, the heat sensitive wire has a negative temperature coefficient characteristic. When the temperature of the heating wire rises, the resistance of the heat sensitive wire decreases, and when the temperature of the heating wire decreases, the resistance of the heat sensitive wire increases. Therefore, when the resistance of the thermal line is increased or decreased, the current flowing in the thermal line is reduced or increased.

In brief operation, when the temperature of the heating wire becomes high, the resistance value of the heating wire decreases, and accordingly, the application time of the voltage supplied to the heating wire is delayed, so that a small amount of power is supplied to the heating wire, and thus the temperature of the heating wire is changed over time. Will be lowered accordingly. When the temperature of the heating wire is lowered, the resistance value of the thermal wire is increased, and accordingly, the time for applying the voltage supplied to the heating wire is shortened, so that a greater amount of power is supplied to the heating wire, and the temperature of the heating wire is increased over time. Will increase.

However, in the electric heaters such as the electric blanket and electric yoke according to the prior art as described above, since AC power used in a general home is directly supplied and has a structure in which a heating wire generates heat by receiving the power, it is possible to prevent generation of harmful electromagnetic waves. There is a problem that there is no.

In addition, by using an AC power supply with low stability of a constant voltage supply, a constant voltage is not supplied to the heating wire, and accordingly, it is difficult for the consumer to control the temperature of the heating wire to a desired temperature, causing consumer complaints. There is this.

The present invention has been made to solve the above problems, the purpose is to prevent the generation of electromagnetic waves by supplying the heating wire after rectifying the general household AC (AC) power to DC (DC) power, supplying a constant voltage This is to provide a heat ray control device using a DC power supply to improve the stability of the temperature control to be made.

In addition, another object of the present invention is a switch means for determining the overall operation of the circuit according to the external control signal using a heat effect using a DC power source to improve the accuracy of the operation using a field effect transistor (FET) To provide a control device.

According to a preferred feature of the present invention for achieving the above object, it is connected between a 220V / 60Hz driving power used in a general heater and a zigzag reciprocating arrangement between the heating wire (heat wire) that generates heat in accordance with the power supply In the hot wire control device using a DC power supply for rectifying and supplying AC power to DC power,

Between the bridge diode and the output terminal of the bridge diode consisting of the first to fourth diode (D1, D2, D3, D4) for rectifying the AC (AC) power supplied from the driving power supply to the direct current (DC) power; First and second capacitors C1 and C2 connected to each other in series to smooth the output voltage, and fifth and sixth diodes D5 and D6 connected to the heating wire to prevent reverse flow of current; The seventh diode (D7) and the field effect transistor connected to each other in series between the output terminal of the bridge diode to determine the current flow direction and at the same time as a switch for determining the overall circuit operation according to the external control signal (A) An inductor connected between FET1 and a common contact of the first and second capacitors C1 and C2 and a common contact of the seventh diode and the field effect transistors D7 and FET1 to remove noise and improve smoothing function. Po L1) To provide a hot-wire control apparatus using a DC power supply is configured.

1 is a circuit diagram showing the configuration of a heat ray control device using a DC power supply according to the present invention

<Description of the code | symbol about the principal part of drawings>

10: driving power source 20: heat wire

30 controller 31 bridge diode

32: Fuse

C1, C2: Capacitor

D1, D2, D3, D4, D5, D6, D7, D8, D9: Diode

FET1: Field effect transistor

L1: Inductor

ZD1: Zener Diode

R1: resistance

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 is a circuit diagram showing the configuration of a heat ray control device using a DC power supply according to the present invention.

Referring to FIG. 1, reference numeral 10 denotes a driving power of 220V / 60Hz used for a heater in a general household, and 20 denotes a heating wire zigzag arranged in a reciprocating manner to generate heat according to the supply of power. A heat plate represents a heat plate, and 30 represents a controller connected between the driving power source 10 and the heating wire 20 to rectify and supply AC power to DC power.

The controller 30 is composed of one module, and is provided with four input / output terminals. In this case, ① and ② terminals are connected to the driving power source 10 and used as power input terminals, and ③ and ④ terminals are connected to the heating wire 20 and used as power output terminals.

Looking at the internal configuration of the controller 30, reference numeral 31 is composed of the first to fourth diodes (D1, D2, D3, D4) is a direct current (AC) power supplied from the driving power source 10 ( DC represents a bridge diode that performs rectification with a power supply, and 32 represents a fuse (FUSE) that is automatically opened when the overvoltage is applied to block the flow of current.

In addition, reference numerals C1 and C2 denote first and second capacitors connected in series between the output terminals of the bridge diode 31 to perform smoothing of the output voltage and at the same time divide voltage, and D5 and D6 denote the heating wire. And fifth and sixth diodes connected to 20 to prevent reverse flow of current.

In addition, reference numerals D7 and FET1 are connected in series between the output terminals of the bridge diode 31 to determine the current flow direction, and at the same time, the role of the switch to determine the overall circuit operation according to the external control signal (A). And a seventh diode and a field effect transistor, wherein L1 denotes a common contact C of the first and second capacitors C1 and C2 and a common contact C of the seventh diode and the field effect transistors D7 and FET1. Inductors are connected between to remove noise and improve smoothing.

In the meantime, reference numerals D8 and D9 denote circuit protection diodes, ZD1 denotes a zener diode, and R1 denotes a resistance.

By using the above configuration, the field effect transistor FET1 is turned on / off by the control signal A supplied from the outside, so that the entire circuit is operated so that the driving power supply 10 By rectifying the AC power supplied from the power supply into the direct current (DC) power source and outputting it to the heating wire 20, it is possible to prevent the generation of electromagnetic waves and to supply a stable voltage.

The present invention is not limited to the embodiments described above, and various modifications and changes can be made by those skilled in the art, which are included in the spirit and scope of the present invention defined in the appended claims.

As described above, the heating wire control apparatus using a DC power supply according to the present invention is to prevent the generation of electromagnetic waves by supplying the heating wire after rectifying the AC power to a general household AC (DC) power supply, supplying a constant voltage By doing this, it is possible to improve the stability of the temperature control, there is an effect that can improve the satisfaction of consumers.

Claims (1)

It is connected between 220V / 60Hz driving power used for general heater and zigzag and heating wire which is reciprocally arranged to generate heat according to the power supply, and supplies AC power by rectifying DC power. In the hot wire control device using a DC power source, Between the bridge diode and the output terminal of the bridge diode consisting of the first to fourth diode (D1, D2, D3, D4) for rectifying the AC (AC) power supplied from the driving power supply to the direct current (DC) power; First and second capacitors C1 and C2 connected to each other in series to smooth the output voltage, and fifth and sixth diodes D5 and D6 connected to the heating wire to prevent reverse flow of current; The seventh diode (D7) and the field effect transistor connected to each other in series between the output terminal of the bridge diode to determine the current flow direction and at the same time as a switch for determining the overall circuit operation according to the external control signal (A) An inductor connected between FET1 and a common contact of the first and second capacitors C1 and C2 and a common contact of the seventh diode and the field effect transistors D7 and FET1 to remove noise and improve smoothing function. Po L1) Defroster control device using a direct current power source being configured to.