KR200341950Y1 - Controller for electric heating bedding - Google Patents

Abstract

The present invention relates to a control device for electrothermal bedding, which has a safety device that blocks magnetic and electric fields generated from electrothermal bedding, and blocks local overheating and overcurrent supply. A commercial power supply having a fuse to supply commercial power A supply unit, a DC power supply unit rectifying and smoothing the commercial power supply to supply a DC power supply to each unit, an AC synchronization signal generation unit outputting an AC power synchronization signal by half-wave rectifying the commercial power supply, and supplying the commercial power supply A non-induction heater that receives and generates heat, a heater driver for driving the heater by switching commercial power supplied to the non-induction heater, a rated current detector for detecting a current supplied to the non-induction heater, A temperature detection and control unit for detecting a temperature and an internal temperature and for allowing a user to set a temperature of the heater; A heater disconnection detection unit for detecting the disconnection of the heating wire of the heater, a display unit for displaying the state and failure of the non-induction heater operating, a power interrupting unit for forcibly cutting the fuse of the commercial power supply unit, and the temperature detection And controlling the heater driving unit according to a temperature detection and temperature setting of a control unit and a voltage detected by the rated current detection unit and the heater disconnection detection unit, and when the control of power supplied to the non-induction heater is impossible. And a control unit to block the fuse of the commercial power supply unit and to control the display unit.

Description

CONTROLLER FOR ELECTRIC HEATING BEDDING}

The present invention relates to electrothermal bedding, and more particularly, to a control device for electrothermal bedding having a safety device for blocking the magnetic and electric fields generated in the electrothermal bedding, and blocking the local overheating and overcurrent supply.

In general, sleep is a very important part of our life, which accounts for about 30% of our lives, and the more good conditions we have, the better we can get physiologically and refreshing sleep, otherwise we can't get a good night's sleep. This fragile causes great disruption throughout social life.

In addition, bed sleep conditions including ambient air conditions such as temperature and humidity are important requirements for a good night's sleep. In other words, it is the ideal bed condition to be able to sleep without feeling the inconvenience caused by the heat and cold caused by the climate, the room temperature for this is 18-24 ℃, the bed temperature is 32-34 ℃, bed Humidity of 50 ± 5% is known to be suitable.

Therefore, in order to maintain the temperature of a bed appropriately, many heat transfer beddings are used in a general household.

The heat transfer bedding line has a heating wire embedded in the bedding line, and generates heat when power is supplied to the heating line. Therefore, the temperature controller for sensing the heat generated by the heating wire and correspondingly controls the power supply is essentially configured.

However, such electric heating bedding not only generates heat when the heating wire is supplied with power, but also generates a harmful electric or magnetic field that is harmful to the human body, or causes the fire and electric shock due to local overheating of the heating wire or short circuit and disconnection. do. In addition, a fire may occur due to electric bedding, due to carelessness of the user, such as going out for a long time while the power is turned on. The heating wire and the power supply line may be disconnected or short-circuited to cause an electric shock.

In addition, in general electrothermal beddings, a safety device for detecting an overcurrent or overheating and shutting off the power in advance is installed in the electrothermal bedding, but it prevents the generation of harmful electric and magnetic fields, prevents overheating of heating wires, and prevents heating The self-diagnosis function to identify the type of fault is not provided, so it is harmful to the human body when it is used for a long time and causes a fire and an electric shock, and the after-sales service of the bedding is expensive.

The present invention has been devised to solve such a problem, and blocks the overcurrent / voltage supply as well as a heater with a non-magnetic coaxial shield heating wire to block harmful electromagnetic waves (electric and magnetic fields), and self-diagnosis function. The purpose of the present invention is to provide a control device for electric bedding, which can check a failure part and forcibly cut off the power supply when power control is impossible.

1 is a block diagram of an electrothermal bedding control device according to the present invention

2 is a circuit configuration diagram of the electrothermal bedding control device according to the present invention

3 is a block diagram of a heating wire of the thermal wire-type induction heater according to the present invention

4 is a configuration diagram of a heating wire of the magnetic shieldless coaxial type induction heater according to the present invention Figure 5 is a layout of the non-induction heater and the thermal wire type temperature sensor according to the present invention. Control signal and output waveform diagram of temperature sensor and controller

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

55: non-induction heater 56: triac

57 control unit 61 commercial power supply unit

62: DC power supply 63: AC synchronization signal generator

64: temperature detection and control unit 64a: heater temperature detection unit

64b: internal temperature sensor 64c: temperature controller

64d: reset section 65: heater driving section

66: rated current detector 67: heater short circuit detector

68: display portion 68a: first display portion

68b: second display portion 68c: third display portion

69: power cut off

The control apparatus for electrothermal bedding according to the present invention for achieving the above object, the commercial power supply unit having a fuse to supply commercial power, and rectifying and smoothing the commercial power to supply a DC power to each part Switching DC power supply, AC synchronous signal generator for half-wave rectifying the commercial power to output an AC power synchronization signal, non-induction heater to generate heat generated by receiving the commercial power, and commercial power supplied to the non-induction heater A heater driver for driving the heater, a rated current detector for detecting a current supplied to the non-induction heater, a temperature detection for detecting a temperature and an internal temperature of the non-induction heater, and for setting a temperature of the heater by the user; A control unit, a heater disconnection detecting unit for detecting heating wire disconnection of the non-induction heater, and the non-induction heater are operated. A display unit for displaying a state and a failure, a power cut-off unit forcibly cutting the fuse of the commercial power supply unit, a temperature detection and temperature setting of the temperature detection and adjustment unit, and a detection of the rated current detection unit and the heater disconnection detection unit A control unit for controlling the heater driving unit according to the supplied voltage, controlling the power cut-off unit to cut off the fuse of the commercial power supply unit, and controlling the display unit, etc., when it is impossible to control power supplied to the non-induction heater. It is characterized by being constructed.

Here, the temperature detection and control unit, the heater temperature detection unit for detecting the temperature of the non-induction heater, the internal temperature detection unit for detecting the internal temperature, and a temperature control unit for adjusting the temperature set by the user adjusts the volume It is characterized by being configured.

The non-induction heater is composed of a magnetic shield-less coaxial heating line, the heater temperature detector is characterized by consisting of a thermal wire type temperature sensor.

The thermosensitive wire type temperature sensor is disposed in parallel on the magnetic shield coaxial heating line, and the shielding lead wire of the magnetic shield coaxial heating line and the shielding lead wire of the thermosensitive wire type temperature sensor 22 are connected to each other.

Referring to the electrothermal bedding control device according to the present invention having such a feature in more detail with reference to the accompanying drawings as follows.

1 is a block diagram of a heat transfer bedding control device according to the present invention, Figure 2 is a specific circuit configuration of the control device of the heat transfer bedding according to the present invention.

That is, a commercial power supply unit 61 for supplying commercial power (AC100-220V) and displaying the commercial power, and a DC power supply unit 62 supplying DC power to each unit by rectifying and smoothing the commercial power. And an AC synchronous signal generator 63 for half-wave rectifying the commercial power to output an AC power synchronous signal, an induction heater 55 for generating heat by receiving the commercial power, and the non-induction heater 55. A heater driving unit 65 for switching the commercial power supplied to drive the heater, a rated current detection unit 66 for detecting a current supplied to the non-induction heater 55, and a temperature of the non-induction heater 55 And a temperature detection and adjustment unit 64 for detecting a temperature inside the control device and allowing a user to set the temperature of the heater, a heater disconnection detection unit 67 for detecting disconnection of the heating line of the non-induction heater 55, The non-induction heater 55 is operated A display unit 68 for displaying a state of being in operation, a state of the temperature controller and a state of the temperature detector, a power cut-off unit 69 for forcibly cutting the fuse of the commercial power supply unit 61, the temperature detection and The heater driver is driven by the AC waveform generated by the AC waveform generator 63 according to the temperature detection and temperature setting of the controller 64 and the signals of the rated current detector 66 and the heater disconnection detector 67. The control unit 65 controls the non-induction heater 55, and when the control of the power supplied to the non-induction heater 55 is impossible, the power cut-off unit 69 is controlled to control the commercial power supply unit 61. And a control unit 57 for blocking the fuse of the control unit and controlling the display unit 68 and the like.

Here, the specific circuit configuration of each part is as follows.

First, the commercial power supply 61 includes a fuse, a power switch, and a light emitting diode 07 so that a user can turn on / off the power. If commercial power is supplied, the light emitting diode 07 Lights up to indicate that power is being supplied.

The DC power supply 62 includes resistors 08 and 12, capacitors 09, diodes 10, rectifier diodes 11, zener diodes 13, smoothing capacitors 14 and 17, inductors 15 and It consists of a constant voltage regulator 16 and the like to rectify and smooth the commercial AC voltage to supply direct current (DC) power to each part.

That is, since the commercial AC voltage is applied to the capacitor 09 and the diode 10 is operated in the reverse direction, the AC voltage applied to the capacitor 09 is half-wave rectified by the rectifier 11, and the smoothing capacitor 14 , 17) smoothes the voltage rectified by the voltage regulator 16 outputs a DC voltage necessary for each part by the voltage regulator 16.

Here, the resistors 8 and 12 are for overcurrent limit, the zener diode 13 is for overvoltage limit, and the inductor 15 is for noise blocking.

The AC synchronizing signal generator 63 includes resistors 19 and 20, a rectifier 18, and a zener diode 21 so that the commercial power is half-wave rectified by the rectifier 18 and the voltage half-wave rectified is the resistance. The voltage is divided by 19 and 20 and input to the controller 57 through the zener diode 21. Here, the zener diode 21 is for overvoltage limit.

The temperature detecting and adjusting unit 64 is a non-induction heater temperature sensing unit 64a for largely detecting the temperature of the non-induction heater 55, and an internal temperature sensing unit 64b for detecting an internal temperature of the controller of the present invention. And a temperature controller 64c for adjusting the temperature set by the user by adjusting the volume.

The non-induction heater temperature sensing unit 64a includes a thermosensitive wire type temperature sensor 22, resistors 24 and 25, a capacitor 23, and a zener diode 26 to provide the thermosensitive wire temperature sensor 22 and a resistor ( 24 and 25 are connected at both ends of the commercial power supply to the non-induction heater 55, the resistance value is changed according to the temperature, and the divided voltage is input to the controller 57 as an analog signal through the zener diode 26. . Here, the capacitor 23 is for noise filter, and the zener diode 26 is for overvoltage limit.

The internal temperature sensing unit 64b is connected to both ends of the thermistor 33 and the resistor 32 supplied by the DC power supply 62 so that the temperature of the thermistor 33 is increased according to the heat generated in the control device. The resistance value is variable and divided by the resistor 32 and input to the controller 57.

The temperature controller 64c connects the volume 28 and the resistors 27 and 29 to both ends of the DC voltage in series so that when the user adjusts the volume 28, a corresponding current value is input to the controller 57. do.

Here, the temperature detecting and adjusting unit 64 further includes a reset unit 64d configured to include the resistor 30 and the condenser 31 to reset the control unit 57 each time an initial power is applied.

The heater driver 65 includes resistors 38 and 42, a transistor 39, a diode 41, a triac 56, and the like, and the control signal output from the controller 57 includes a resistor 38, When applied to the gate terminal of the triac 56 which is the power control element through the transistor 39 and the diode 41, the triac 56 is turned on / off to supply commercial power to the induction heater 55 To drive the heater.

The rated current detector 66 includes a resistor 44, a volume 44, capacitors 43 and 46, and a zener diode 47 to the heater 55, the triac 56, and the resistor 43. When commercial power is supplied to the heater 55 in the series circuit, the current value of the heater 55 is represented as a voltage by the resistor 43 and the voltage is divided across the volume 44 to control the voltage by controlling the voltage. Is entered. Therefore, it is possible to determine whether the power supplied to the heater is normal or abnormal (overcurrent and overvoltage).

That is, when the heating wire of the non-induction heater 55 is short-circuited or when the thermal wire type temperature sensor 22 and the heating line are short-circuited, an overcurrent will be detected.

Here, the capacitors 45 and 46 are for the noise filter, and the zener diode 47 is for the overvoltage limit.

The heater disconnection detection unit 67 is composed of a diode (50, 51), high resistance (48, 49), the resistance 52, even if the triac (56) of the heater driving unit 55 is off state the heater ( 55), diode 50, and high resistances 48, 49 form a closed circuit. At this time, since the resistors 48 and 49 have a high resistance of 1 MΩ or more, a current capable of driving the non-induction heater 55 does not flow, but a minute voltage is applied to the resistor 48. Therefore, the minute voltage divided by the resistors 48 and 49 is input to the controller 57. If the non-induction heater 55 is disconnected, the minute voltage is not input to the controller 57. Here, when the heater 52 is disconnected, the resistor 52 and the diode 51 may bypass the voltage induced by the mutual capacitance of the heater 55 due to the non-inductive characteristic structure.

The display unit 68 includes a resistor 37, a light emitting diode 36, and the like, which displays the occurrence of failures such as short circuits and disconnection of the heater driving unit, overheating of the heater, and internal temperature overheating by the controller 57. A second display portion 68b composed of a first display portion 68a, a resistor 34, a light emitting diode 35, and the like, indicating a short circuit or disconnection of the non-induction heater 55; It is comprised by the 3rd display part 68c which displays the operation state of 55. As shown in FIG.

The power cut-off unit 69 is composed of resistors (01, 03), SCR (02), diode (04), condenser (05), etc. so that the control signal (high signal) of the control unit 57 is a diode (04) And when applied to the gate terminal of the SCR (02) through the resistor 03, the SCR (02) is turned on and the instantaneous current flows instantaneously disconnect the fuse of the commercial power supply 61. Here, the capacitor 05 is for a noise filter.

The control unit 57 is a microcomputer with a built-in analog / digital converter, but may include a clock signal oscillator therein. However, in the drawing, a clock oscillator (XT) is externally provided to convert the clock signal of the external clock oscillator into a basic clock signal. do.

3 is a configuration diagram of a heating wire of the thermal wire-type induction heater according to the present invention, Figure 4 is a configuration diagram of a heating wire of the magnetic shieldless coaxial type induction heater according to the present invention.

In the heat transfer bedding according to the present invention, the heating wire of the non-induction heater 55, as shown in FIG. In addition, the thermal sensor 102 is wrapped around the heating wire 102 and the resistance value decreases in proportion to temperature, and the spiral wound around the outer circumferential surface of the thermal sensor unit 103 in the opposite direction to the heating wire 102. The shielding lead wire 104 which cuts off an electromagnetic wave generated in the heating wire 102 by canceling out by flowing a current, and an insulating coating 105 surrounding the lead wire 104 in turn.

In addition, in the heat transfer bedding according to the present invention, the heating wire of the non-induction heater 55, as shown in FIG. 4, spirally wound around the insulating core 106 to generate heat by the heat of the bottom when energized The hot wire 107, the high temperature insulating layer 108 surrounding the hot wire 107, and the outer circumferential surface of the high temperature insulating layer 108 are spirally wound to allow a current to flow in a direction opposite to the hot wire 107 to cancel. The shielding lead wire 109 which cuts off the electromagnetic wave which generate | occur | produces in the said heating wire 107, and the insulation coating 110 which surrounds the said lead wire 109 are comprised.

The heating wire of the non-induction heater as described above has been previously filed by the present applicant (see Korean Utility Model Publication 20-0261088, 20-0276482 and 20-0288140).

In the present invention, the non-induction heater 55 is configured as a magnetic shieldless coaxial heating line, and the thermal wire type temperature sensor 22 of the non-induction heater temperature sensing unit 64a is configured as shown in FIG. 5.

That is, Figure 5 is a layout of the non-induction heater and the thermal wire type temperature sensor according to the present invention.

As shown in FIG. 5, in order to prevent local overheating of the non-induction heater, a non-induction heater is constructed using the non-magnetic shield coaxial heating line as mentioned in FIG. 4, and the non-magnetic shield coaxial type. The thermal wire type temperature sensor 22 as shown in FIG. 3 is arranged in parallel on the heating line.

By arranging in this way, it is not possible to compare the temperature detection area for local overheating of several meters (m) of thermal wire type temperature sensor, several millimeters of thermistor temperature sensor and magnetic shieldless coaxial heating line. When the heating wire is locally heated, the impedance of the thermal wire type temperature sensor 22 of the portion is drastically reduced.

This impedance change is input to the controller 57 to block the surface overheating of the heating wire.

Here, the shielding lead wire (104 in FIG. 3) of the thermosensitive wire type temperature sensor 22 and the shielding lead wire (109 in FIG. 4) of the magnetic shield coaxial heating line are connected to the ground side of the commercial power supply to connect the AC electric field. Do not occur.

Referring to the operation of the electrothermal bedding control device according to the present invention configured as described above are as follows.

6 is a control signal and output waveform diagram of the control unit according to the present invention.

First, when the user turns on the power switch of the commercial power supply 61, commercial power is supplied to each part, and the light emitting diode 07 emits light to indicate that the power is turned on.

In the DC power supply 62, the rectifier 11 is half-wave rectified using the leakage current of the condenser 09, and the smoothing capacitors 14 and 17 smooth the rectified voltage to adjust the voltage regulator 16. The DC voltage required for each part is supplied by).

In addition, the AC synchronizing signal generator 63 inputs the commercial power to the controller 57 by dividing the half wave rectified voltage by the rectifier 18 and dividing the half wave rectified voltage by the resistors 19 and 20.

At this time, the reset unit 64d of the temperature detection and adjustment unit 64 resets the control unit 57 whenever the initial power is applied.

The user adjusts the volume 28 of the temperature controller 64c to set a desired temperature. Therefore, the controller 57 compares the voltage value set by the temperature controller 64c with the voltage output from the non-induction heater temperature sensor 64a for detecting the temperature of the non-induction heater 55. The heater driver 65 is controlled.

That is, since the thermosensitive temperature sensor 22 is not heated initially, the resistance value of the thermosensitive temperature sensor 22 will be high. Therefore, the voltage across the resistor 24 is lower than the voltage of the temperature control unit 64c adjusted by the user. Therefore, as shown in FIG. 6, the controller 57 outputs a "high" signal to the heater driver 65 and the triac 56 of the heater driver 65 is turned on to operate the non-induction heater 55. Drive.

As such, the non-induction heater 55 is driven so that the resistance value of the thermosensitive temperature sensor 22 is lowered so that the voltage applied to the resistor 24 is higher than the voltage of the temperature controller 64c controlled by the user. When the control unit 57 outputs a “low” signal to the heater driving unit 65, the triac 56 is turned off to cut off the commercial power applied to the non-induction heater 55.

During the operation as described above, the internal temperature sensing unit 64b has a resistance value of the thermistor 33 varying according to the heat generated inside the electrothermal bedding control device of the present invention configured as described above and the resistance 32 The pressure is divided by the input into the control unit 57.

In addition, the rated current detector 66 is a current value of the heater 55 when the commercial power is supplied to the heater 55 in a series circuit consisting of the heater 55, the triac 56 and the resistor 43 Represented by the resistor 43 as a voltage, the voltage across the volume 44 is adjusted to a partial pressure and is input to the controller 57.

In addition, the heater disconnection detecting unit 67 detects the minute voltage divided by the resistors 48 and 49 when the triac 56 of the heater driving unit 55 is in an off state, and inputs it to the control unit 57. Let's do it. At this time, if the non-induction heater 55 is disconnected, the minute voltage is not input to the controller 57.

In this way, the control unit 57 checks whether a normal operation is performed by inputting a signal from the rated current detection unit 66, the heater disconnection detection unit 67, and the internal temperature detection unit 64b. The heater driving unit 65 is controlled so that power is not applied to the display panel, and the display unit 68 displays the display unit 68 or cuts off the power supply of the commercial power supply unit 61.

For example, the controller 57 does not output a driving signal (“high” signal) to the gate of the triac 56 of the heater driver 65, and if there is a signal from the rated current detector 66. It is determined that the triac 56 is short, and the first display unit 68a of the display unit 68 is turned on at a 0.5 second interval, and a high signal is output to the power cutoff unit 69 to supply the commercial power supply unit 61. Let the power supply fuse of) disconnect.

At this time, the gate signal of the triac 57 of the heater driver 65 maintains a low state.

In addition, a driving signal (“high” signal) is applied to the triac 56 gate of the heater driver 65 to supply a commercial power in a series circuit including the heater 55, the triac 56, and the resistor 43. The controller 57 reads the current value flowing through the heater 55 so as to be supplied to the heater 55, and determines whether the rated current is equal to or less than the rated current, or greater than the rated current.

That is, when an overcurrent is detected, it is determined that the thermal shield type temperature sensor 22 and the magnetic shieldless coaxial heating line of the heater are short-circuited or that the commercial power is unstable, and the second display unit 68a is turned on for 0.2 seconds, and 2 The lamp goes out for a second to inform the user that there is an error, and keeps the gate signal of the triac 56 as a low signal.

In addition, when the rated current is less than or equal to the breakage of the triac 56 of the heater driving unit 65, the first display unit 68a is turned on for 0.5 seconds and turned off for 2 seconds to notify the user repeatedly. Keep the gate signal at 56 low.

In addition, the control unit 57 continuously outputs a trigger HI to the gate of the triac 56 of the heater driving unit 65 so that the rated current is normally detected by the rated current detecting unit 66, and at the same time, the thermosensitive type temperature sensor ( 22) and if the temperature control is not made by the temperature control unit 64c and the non-induction heater 55 continues to generate heat for about 2 hours or more, the controller 57 determines that the heater goes out for a long time or overheats the gas. The triac 56 gate output of 65 is forcibly output only 30% of the rated power, and the first display unit 68a is continuously turned on to inform the user.

Therefore, when heating the heater, the heater is short-circuited at any middle for other reasons, when the overcurrent flows, when the overheat leakage current flows between the power input terminals, and the overcurrent due to the voltage fluctuation of the commercial power supply flows. Overheating can be prevented, and if the user sets the temperature control setting point of the temperature control unit 64c to the maximum rated value and leaves the seat for a long time for reasons such as going out, the control unit 57 automatically checks the rated maximum power use time. To reduce the power output.

Determination of short or disconnection of the thermosensitive wire type temperature sensor 22 enables the sensor potential to be set in advance to the control unit 57 to a value near the maximum potential and the minimum potential so that disconnection and short of the sensor can be determined.

In addition, when the drive current (“high” signal) is not output to the triac 56 gate of the heater driving unit 65 and normally operated without a signal in the rated current detecting unit 66, the heater disconnection detecting unit ( It determines whether the signal of 67).

That is, if no voltage is detected by the heater disconnection detecting unit 67, the control unit 57 determines that the non-induction heater 55 is disconnected and turns on the second display unit 68b for 1 second and turns off for 2 seconds. Repeat this to inform the user that the heater has been disconnected. At this time, the gate signal of the triac 57 of the heater driver 65 maintains a low state.

In addition, the controller 57 reads a signal from the internal temperature detector 64b and lights up the first display unit 68a at 0.2 second intervals when the temperature of the internal temperature detector 64b is greater than or equal to a set temperature. In order to notify the user, a low signal is output to the triac 56 of the heater driver 65 until the temperature falls below a predetermined temperature, thereby stopping the driving of the heater.

The third display portion 68c of the display portion 68 is continuously turned on when power is supplied to the non-induction heater 55.

The electrothermal bedding control device of the present invention as described above has the following effects. First, since the heater is composed of a magnetic shieldless coaxial heating line, it is possible to block the magnetic and electric fields that may be generated in the heater. The heater may be configured as a magnetic shieldless coaxial heating line, and a heater temperature sensor configured to detect the temperature of the heater may be configured as a thermal wire type temperature sensor, and the temperature sensor may be installed in parallel on the heater to prevent local overheating. Third, when the electric power is not supplied to the heater or not, respectively, the rated current is detected to recognize that the heater is short-circuited, thereby blocking the heating of the heater, thereby preventing the heater from being overheated, and allowing the user to If you set the temperature control point to the maximum rated value and leave the seat for a long time, such as when you go out, There Fourth, self-disconnection / short-circuit, a heater driving unit disconnection / short-circuiting, failure of the overheating, over-current, etc. of the heater diagnostics controlled so the heater is not heated, and at the same time it displays the information, so it is possible to reduce the A / S cost.

Claims (4)

A commercial power supply unit having a fuse to supply commercial power, A DC power supply unit for supplying DC power to each unit by rectifying and smoothing the commercial power; An AC synchronizing signal generator for outputting an AC power synchronizing signal by half-wave rectifying the commercial power; An induction heater that generates heat by receiving the commercial power; A heater driver for driving the heater by switching commercial power supplied to the non-induction heater; A rated current detector for detecting a current supplied to the non-induction heater; A temperature detection and control unit for detecting a temperature and an internal temperature of the non-induction heater and for allowing a user to set a temperature of the heater; A heater disconnection detection unit detecting a heating line disconnection of the non-induction heater; A display unit which displays a state in which the non-induction heater is operating, a failure, and the like; A power cut-off unit for forcibly cutting the fuse of the commercial power supply unit; When it is impossible to control the heater driving unit according to the temperature detection and temperature setting of the temperature detection and control unit and the voltage detected by the rated current detection unit and the heater disconnection detection unit, and control of the power supplied to the non-induction heater is impossible. And a control unit for controlling the power cutoff unit to block the fuse of the commercial power supply unit and to control the display unit. The method of claim 1, The temperature detection and control unit, A heater temperature detector configured to detect a temperature of the non-induction heater; An internal temperature sensor for detecting an internal temperature; The apparatus for controlling electrothermal bedding, characterized in that it comprises a temperature control unit for adjusting the temperature to be set by the user to adjust the volume. The method of claim 2, The non-induction heater is composed of a magnetic shield coaxial heating line, the heater temperature detection unit is a control device for electrothermal bedding, characterized in that composed of a thermal wire type temperature sensor. The method of claim 3, wherein The thermosensitive wire type temperature sensor is disposed on the non-magnetic shield coaxial heating wire in parallel, and the shielding lead wire of the non-magnetic shield coaxial heating wire and the shielding lead wire of the thermosensitive wire type temperature sensor are connected to each other. .