KR200209527Y1 - Assortment adjuster of automatic earthing for electric mat - Google Patents

Abstract

The present invention relates to an automatic grounding sorting controller for a heating mat using a microcomputer, and selects a line having the same potential as the grounding of two wires by using an electronic device without a separate grounding wire, and connects it to a shield plate installed in the heating mat body. Therefore, by constructing a regulator that grounds the potential and electromagnetic waves generated from the heating mat so as not to be induced by the human body, the antenna is connected to the input port of the microcomputer by using the point that the input input resistance of the microcomputer is almost infinite, and the space potential around the regulator is A resistor connected in series with a capacitor used to form a small DC power supply from AC power by detecting 60Hz is a means to protect the components of the circuit in the dotted line by limiting the inrush current to the resistance of the NTC part when connecting to the NTC part. There is an automatic ground sorting control of the heating mat that is automatically limited.

Description

Assortment adjuster of automatic earthing for electric mat}

The present invention relates to an automatic grounding sorting controller for a heating mat using a microcomputer, and selects a line having the same potential as the grounding of two wires by using an electronic device without a separate grounding wire, and connects it to a shield plate installed in the heating mat body. Therefore, the present invention relates to a device for grounding the potential and electromagnetic waves generated in the heat transfer mat so as not to be induced to the human body.

In general, ground wires connected to lightning rods can move large amounts of charge from the atmosphere directly to the Earth's surface, preventing charges from moving to other paths and damaging buildings and humans.

In addition, there is a case where the person himself is grounded (when standing on a damp floor or in contact with metal pipes). In the wiring of a house, one wire is grounded to prevent the occurrence of lightning, breakdown of transformer, insulation of wire, etc. It minimizes human injury and fire caused by fire.

In addition, the enclosure of the metallic casing and other conductors is grounded so that if the insulation of any of the internal parts is destroyed and it comes into contact with the casing, the electrical shock will not be applied to the outside, and portable appliances are mostly grounded to prevent electrical shock. Is made possible.

The electromagnetic wave removing device of the thermal insulation electric yoke, patented (No. 99-28386) with this content, attenuates the generation of electromagnetic waves by superimposing electric conductors having different directions of current and spiral in the heating element, and electromagnetic waves leaking from the heating element It provides an electromagnetic wave removing device that removes more than 95% of the electromagnetic waves generated in the electric field by flowing to the ground through the installed electromagnetic wave absorbing conductor, and the electrical insulation core support, spiral inner conductor, intermediate electrical insulation layer from the center of the heating element Has a spiral outer layer conductor and a covering electrical insulation layer, and the inner layer conductor and the outer layer conductor have connecting portions connecting the outer ends, and the spiral directions of the inner layer conductor and the outer layer conductor are arranged in opposite directions with respect to the current direction; The electromagnetic wave absorbing conductor for installing a heating element in the electric yoke, the upper and lower electromagnetic wave absorbing conductor Its purpose is to be connected and used for binding to ground.

In addition, the electric yaw control circuit using the microcomputer of Patent Publication No. 95-13944 is configured to connect the fuse, switch, temperature fuse, and triac in series to the input voltage to supply power to the heating wire of the heating element, and rectify the input voltage. DC power stabilization circuit for rectifying to DC 6V and supplying 5.4V voltage down to 0.6V through a diode using an integrated circuit, and connecting a resistor, diode, resistor, and capacitor to an input power source, The triac is controlled by determining the temperature by the delay time of the input power of the detection voltage by the capacitance connected to the input power detection circuit which allows the microcomputer to detect whether the input voltage is 110V or 220V by the DC voltage. The short time to reach the set temperature and accurate temperature control are possible, and the triac is turned on and off at zero voltage. Zero-crossing control prevents stress on the triac, generates noise on other circuit elements, and ensures stable circuit operation and prevents the microcomputer from separating into isolation transformers.

In addition, the temperature is controlled by the microcomputer irrespective of the input voltage, the connection of the controller to the electric cable, the abnormality of the circuit and the microcomputer, the cancel function, the sleep function, the alarm function, and the reservation function are provided.

Conventional devices having such a configuration consisted of a plurality of integrated circuits for sensing temperature and adjusting a current value flowing in a heating wire, and an auxiliary power circuit for applying an operating power to these integrated circuits, and using a separate ground selection device. I should have done it.

In addition, in the conventional electric blanket, a cushion layer, a heating layer, a heat diffusion layer, a support protective layer, etc. are stacked inside the cover, and the heating layer is an alternating current, nitrate or half wave heater arranged in a heat diffusion layer, and an electric heating heater is applied. A large amount of electric and magnetic fields are generated in proportion to voltage and power consumption.

In order to reduce the electromagnetic wave of the electric wave, the magnetic field attenuation technique of the old vacuum tube, which uses two electric conductors as a heater, has been used. However, such a technology alone cannot effectively remove the electromagnetic wave generated in the electric field having a large current capacity. .

In addition, the existing circuits use a lot of large resistors instead of NTC, but the heat generation is severe and there is a problem that the disconnection of the structure due to the resistance.

The present invention has been made to solve the above-mentioned problems, and selects the line of the potential, such as the ground of the two wires of the lead wire of the two wires without an additional ground wire to the automatic ground sorting regulator of the heat transfer mat using the microcomputer using an electronic device It is an object of the present invention to configure a regulator that grounds the potential and electromagnetic waves generated in the heat transfer mat so as not to be induced by the human body by connecting to the shield plate installed in the heat transfer mat body.

In order to achieve the above object, the means of connecting the antenna (PCB pattern) to the input port of the microcomputer using the fact that the input input resistance of the microcomputer is almost infinite, and the space potential around the regulator is detected by the commercial potential. And a resistor (R5) connected in series with a capacitor (C3), which is frequently used to make a small-capacity DC power supply from an AC power source, is a NTC. It is a means to protect the components of the circuit in the dotted line by limiting the inrush current to the NTC resistance when connecting the power supply. The NTC part is a semiconductor-applied part that protects the circuit part by lowering the inrush current to a high resistance value at the initial power-on, and provides a means of automatically limiting the heating temperature because the temperature rises during use and the resistance of the NTC part decreases. It is.

1 is a circuit diagram of a conventional electromagnetic wave removing device of thermal insulation

2 is a circuit diagram of a conventional electric yaw control circuit.

3 is a circuit diagram showing an embodiment of the present invention

Explanation of symbols on the main parts of the drawings

10. Power circuit section 11. NTC section

12. Shield 13. Microcomputer

Hereinafter, the configuration of the configuration made by the embodiment of the present invention with reference to the accompanying drawings in detail as follows.

1 is a circuit diagram of a conventional electromagnetic wave removing device of a thermal insulation electric yaw, Figure 2 is a circuit diagram of a conventional electric yaw control circuit, Figure 3 is a circuit diagram showing an embodiment of the present invention.

As shown in FIG. 3, the present invention detects a space potential 60 Hz or 50 Hz formed by a commercial power supply voltage by connecting an antenna (PCB pattern) to the port input of the microcomputer by using a port input resistance of the microcomputer. Adopted the method.

The automatic ground sorting circuit of the present invention is connected to the power supply circuit part 11 and the photocoupler (PHOTOCOUPLER) PC₁ and PC₂ in parallel with the capacitors C4 and C5 at the input voltage AC.

Each of the resistors R6 and R7 is connected in parallel to the capacitor, and a shielding plate 12 is connected between the photocoupler PC PC and PC₂.

The microcomputer 13, which is an input port part connected in series with the power circuit unit 10, is connected to each of the power terminals VSS and VCC.

In addition, the input port of the microcomputer 13 is connected to the photocoupler (PC1, PC2) through the resistor (R3, R4).

The input port of the microcomputer 13 and the PCB pattern ANT is connected to the resistor R2 and the resistor R1 of the power source AC₂.

In addition, the power supply circuit unit 11 is configured by connecting a power source AC 과, a capacitor C3, and a resistor R5.

Referring to the operation and the effect according to an embodiment of the present invention configured as described above are as follows.

As shown in FIG. 3, power is supplied to the power circuit unit 10 by the temperature controller.

At this time, one of two conventional KEPCO power lines is generally grounded to the ground as described above (AC₁, AC₂).

Therefore, the periphery becomes the same as most (ground) ground potential as described above.

If AC₂ is the ground potential, the surrounding is also the ground potential, so the potential coming into the antenna ANT and entering the microcomputer 13, which is the input port, is the same as the power source terminal VSS potential of the microcomputer. By judging this, the photocoupler PC 'is turned off and the photocoupler PC2 is turned on, so that the potential of the power source AC2 is connected in parallel with the resistor R7 and the capacitor C5 to ground the shield plate 12.

In addition, if the power supply AC₁ is a ground potential, the power supply AC₂ is as high as the input voltage with respect to the earth, so the potential of the power supply terminal VSS of the microcomputer 13 is higher than the surrounding potential by the input voltage. The ground potential is induced and transferred to the input port through the resistor (R₂). As the input state, the microcomputer turns off the photocoupler (PC₂) and turns on the photocoupler (PC₁). Is connected via a resistor (R6) and a capacitor (C4) to ground the shield plate (12).

The resistor R 'is a micom input photo pull down resistor, and the sensitivity is adjusted by adjusting a value, and the capacitor C' bypasses the high frequency component, thereby preventing the microcomputer 13 from malfunctioning.

In addition, the power circuit unit 10 is often used to make a small-capacity DC power source from the power source AC, and the inrush current is limited to the NTC unit 11 resistance when the power supply is connected to the NTC unit 11 connected in series with the capacitor C3. The parts of the circuit unit 10 are protected.

Here, the existing circuits generate a lot of heat due to the large use of large-scale resistors instead of the NTC unit 11, and there were many disconnection defects due to the structure of the resistors.

The NTC unit 11 is a semiconductor-applied component that protects the circuit components by lowering the inrush current to a high resistance value at the time of initial power-on, and increases the temperature during use, thereby lowering the resistance of the NTC unit 11 to generate heat. Is automatically limited.

In addition, since the temperature control unit 11 is a resistance element inversely proportional to the temperature, the temperature control unit 11 is not easily disconnected by the instantaneous large current.

As described above, the automatic ground sorting device using the microcomputer of the present invention sorts potential wires such as ground out of two incoming wires by using an electronic circuit without a separate grounding wire and directly connects to the shielding board installed in the main body of the insulating mat. There is a characteristic that the potential generated from the mat and minute electromagnetic waves are not induced to the human body.

Attenuated minute electromagnetic waves generated at the same time as the heat generated by the present invention as configured as described above, and the electromagnetic waves leaked from the heating element is not directly induced to the human body, and the number of parts is small and structure because it does not use a large number of complex integrated circuits as in the prior art Since the simple to minimize the volume has the effect of reducing the manufacturing cost.

Claims (1)

In configuring the automatic ground sorting controller of the heating mat, Means for connecting an antenna of a PCB pattern to a microcomputer input port attached to the automatic ground selection regulator; Means for detecting a spatial potential (antenna) 60 Hz around the selector regulator; Means for protecting components of the circuit of the power circuit part by limiting inrush current to the NTC part resistance when the power supply connection of the NTC part connected in series with the capacitor C3, which is used for making a small capacity DC power source from the AC power source; The NTC unit is to protect the circuit components by lowering the high resistance value to the inrush current at the initial power-up, characterized in that the automatic ground selection regulator of the heat transfer mat.