WO2010095789A1

WO2010095789A1 - Non-magnetic temperature controller and control method for same

Info

Publication number: WO2010095789A1
Application number: PCT/KR2009/003626
Authority: WO
Inventors: 길종진
Original assignee: Kil Jong-Jin
Priority date: 2009-02-20
Filing date: 2009-07-02
Publication date: 2010-08-26
Also published as: KR100941310B1; KR20090079861A; KR20090058479A

Abstract

The present invention relates to a non-magnetic temperature controller, more specifically to a non-magnetic temperature controller and a method for controlling the same and for detecting the temperature of a heating line in a parallel heating line mode rather than a serial heating line mode. The present invention provides continuous heating of a 1st or 2nd heating line in case the other heating line is disconnected so that the 1st and 2nd heating lines are connected in parallel.

Description

Magneticless thermostat and its control method

The present invention relates to a magnetic field temperature controller, and more particularly, to a magnetic field temperature controller and a method for controlling the temperature of the heating line by the parallel heating line method rather than the series heating line method.

In human sleep, the bedside conditions such as temperature and humidity are important requirements.In the case of general homes, there are many electric beddings and heaters such as electric blankets, electric mattresses, and electric steamers in order to maintain the bed temperature properly. I use it. The heat transfer bedding and the heater are built with a heating wire therein, and heat is generated when power is supplied to the heating wire. Therefore, it is essential to configure a temperature controller that senses the temperature around the heating wire and controls the power supply accordingly.

The conventional bedding heating wire has shorted one end of two metal heating wires arranged in parallel, and is equipped with a separate temperature sensing sensor separated from the heating wire to detect temperature. However, the method of separating the temperature sensor and the heating wire has a problem that not only does not detect the temperature of the entire heating wire caused by a short circuit inside the heating wire, but also does not detect local overheating at an arbitrary position. Therefore, when the heating wire is locally overheated or short-circuit and disconnection, there is a problem that a fire and an electric shock may occur.

As another conventional method, a method of detecting a temperature with a third electric wire by adding a separate temperature sensor to an outer circumferential surface or an inner center surface of which two ends are shorted among two metal heating wires arranged in parallel is used. However, since the temperature sensor layer and the third metal layer are added to the heating wire without the separation from the heating wire, the thickness of the non-magnetic heating wire is increased so that it cannot be used for thin bedding, and the heating wire is produced. There are problems such as complicated process and rising production cost. In addition, the above-mentioned conventional techniques all have a problem in controlling the temperature of the heating wire, or the thickness of the heating wire has a problem that the utility line is not practical, or does not block harmful electromagnetic waves due to voltage and current.

On the other hand, in relation to the heating wire, general non-magnetic heating wire that is used as a heating element in electric bedding, electric mattresses such as electric mattresses or electric mats, or heating mats, generally, a ventricle made of polyester thread or glass wool, spirally to the ventricles A heater coil to be wound, an inner insulator coated on the heater coil of the outer circumferential surface of the ventricle for insulation, a shield wired and grounded in the form of a conductor or a net on the outer circumferential surface of the inner insulator, and an outer insulator coated on the shield Etc. In the above configuration, the heater coil and the shield are electrically connected in series with each end connected to each other, and each of the leading ends thereof is a power input terminal respectively connected to the (+) (-) terminal of the power source.

Such a general magnetic field-free heating wire has a disadvantage that the thickness is very thick due to its internal insulator and weak in flexibility. In other words, the above-described conventional bedding-free non-magnetic heating wire is thick because the internal insulator is softened due to the high heat of the heater coil during heat generation, and the insulation is sharply dropped, so the thickness of the internal insulator has to be thick to prevent the short circuit between the heater coil and the shield. Is very thick (at least 6 mm), when applied to electric mats, etc., is blown over the epidermis and exhausted to the user's body, and it is almost impossible to apply to thin beddings such as electric mattresses, blankets, and sheets because of thickness and stretchability. It was impossible.

In order to solve this problem, the applicant has devised a heating line and a temperature controller as disclosed in Patent Publication No. 2004-87853 and Patent No. 10-0553815. The improved heating wire reduces the thickness of the inner insulator by using a heating wire coated with an enamel layer, and at the same time, the lead wire is wound in a spiral structure on the outer surface of the inner insulator so that the performance does not decrease even when the bending stress is repeatedly received. It was to have. This makes it possible to completely solve the conventional problem that the thickness becomes too thick and the flexibility is poor.

However, the improved heating wire could not perform the function of detecting local overheating and controlling energization accordingly. If tens of meters of heating wire is locally overheated at a certain position or exceeds the reference temperature, it may cause a fire or burn, so the power supply should be cut off. In other words, in order to detect the temperature of the long heating wire, there is a cumbersome point in that a plurality of temperature detection devices must be additionally provided at an arbitrary position, and the temperature detection device is inconvenient for the user because it is configured to protrude out of the bedding. There is a problem that the temperature detection device can not be attached to the bedding.

In order to solve this problem, the applicant has come up with a temperature controller as disclosed in the registered patent No. 10-0553815.

The configuration and operation of the above registered patent will be described with reference to the drawings.

1 is a view showing the configuration of a general electromagnetic wave thermostat, Figure 2 is a view showing an equivalent circuit of the heating unit according to the positive (+) power of the AC input power of Figure 1, Figure 3 is an AC input power of Figure 1 FIG. 4 is a diagram illustrating an equivalent circuit of a heating unit according to a negative (−) power source, and FIG. 4 is a diagram illustrating a temperature detection and heating operation and a magnetic field forming process according to a general AC input power source.

The magnetic field-free thermostat is composed of a heating unit 1 and a temperature control control unit 30.

The heating unit 1 includes a heating line 16, a rectifier 17 for detecting a temperature voltage, a rectifier 18 for a heating current u-turn, a control rectifier 19, and a trigger input unit 24.

The heating wire 16 surrounds the first heating wire 13 and the first heating wire 13 wound on the outer circumferential surface of the insulating core, and an NTC thermistor 14 which lowers the resistance value as the temperature increases. And an insulating coating surrounding the second heating wire 15 wound around the outer circumferential surface of the NTC thermistor 14 and the second heating wire 15. The first heating wire 13 and the second heating wire 15 are arranged side by side or parallel to each other.

The present invention may further include a temperature voltage adjusting unit 31 for adjusting the temperature detection voltage applied to one end of the first heating wire 13. The temperature voltage controller 31 includes a resistor 11 connected at one end to a power source, and a variable resistor 12 for temperature detection adjustment connected in series between the other end of the resistor 11 and one end of the first heating wire 13. . The variable resistor 12 changes the voltage input to the NTC thermistor 14 to enable temperature control.

The rectifier 17 for detecting a temperature voltage is connected in series with the other end of the first heating wire 13 and passes the temperature voltage output from the other end of the first heating wire 13. In the present embodiment, the rectifier 17 for detecting the temperature voltage is preferably a diode. When the AC input power is turned on, the half cycle of the AC cycle, that is, the positive cycle, is a change in the temperature resistance of the NTC thermistor 14 between the first heating wire 13 and the second heating wire 15. Is output to the rectifier 17 for temperature voltage detection. The temperature detection signal current passes through the first heating wire 13 and partially flows back from the NTC thermistor 14 to the second heating wire 15. At this time, since the temperature detection signal current flowing in the first heating wire 13 and the second heating wire 15 is opposite to each other, the magnetic field is canceled and the temperature detection signal current flows in the non-magnetic state.

Rectifier 17 for detecting the temperature voltage 17 is an equivalent circuit for explaining theoretically. In FIGS. 2 and 3, the temperature detection operation and the heating operation are separated by the positive power supply and the negative power supply of the AC input power. Since the power required by the temperature control controller 30 to accept the temperature signal voltage is a small signal power of several mW or less, the temperature signal voltage output value of the temperature voltage controller 31 also operates to several mW or less. In addition, according to the setting of the own input signal amplification operating point of the temperature control controller 30 (particularly, when the SCR 90 is provided in the comparison detection unit 21, the +,-selection operation becomes possible) Only one of the signal or the + and-signals may be selected and randomly operated.

Therefore, the rectifier is not necessary for small signals, or the rectifier 17 for temperature voltage detection is used logically to overlap the temperature voltage detection rectifier 17 under actual circuit configuration conditions such as selecting and using one signal. (17) may be omitted. That is, when the temperature signal voltage conversion power consumption of the NTC thermistor 14 is converted and detected by several mW or less, the NTC thermistor detection signal voltage can be selected as an AC voltage or a DC voltage, and the temperature control controller 30 detects the thermistor. The presence or absence of the rectifier 17 for temperature voltage detection can be selectively applied according to the condition for setting the input signal amplification operation point.

The control rectifier 19 causes the heating current to flow u-turn to the power supply side through the other end and one end of the first heating wire 13 from the opposite end of the second heating wire 15 connected to the power supply when conducting by the trigger signal. In the present embodiment, the control rectifier includes a rectifier 18 for heating current U-turn and a control rectifier 19.

The rectifier 18 for the heating current U-turn has a cathode connected to the other end of the first heating wire 13 and an anode connected to the second heating wire 15 on the same side. In this embodiment, a diode is used.

In addition, the control rectifier 19 has an anode connected in parallel with the temperature voltage control unit 31 at one end of the first heating wire 13 and a cathode connected to the power supply side, and is turned on by a trigger signal of the trigger input unit 24. . As the control rectifier 19, it is most preferable to use a silicon-controlled rectifier (hereinafter referred to as SCR) for power control.

The temperature control controller 30 outputs a control signal when the temperature voltage output from the first heating wire is greater than the reference voltage. In the present exemplary embodiment, the temperature control controller 30 includes a fixed reference voltage generator 20 for outputting a reference voltage, and a comparison detector 21 for outputting a driving signal when the temperature voltage is higher than the reference voltage by comparing the temperature voltage with the reference voltage. ), A trigger delay unit 22 driven by the drive signal of the comparison detector 21 to delay the trigger signal for a predetermined time, and a trigger output for outputting a trigger signal for a time delayed by the trigger delay unit 22. And a portion 23.

The trigger delay section 22 starts at the temperature detection cycle of the AC input power cycle and is maintained until the control rectifier 19 is turned on in the heating cycle. At this time, the control rectifier 19 is turned on at the zero point to control power. It is characteristic.

The magnetic field-free heating operation, when the control rectifier 19 is turned on by the trigger signal output of the temperature control controller 30, the second heating wire 15, the rectifier for heating current U-turn 18, the first heating wire connected in series with the power supply A heating current flows through 13 and the control rectifier 19 to heat the heating wire.

Although not shown in the drawing, the trigger signal may be implemented such that both the heating current u-turn rectifier 18 or the heating current u-turn rectifier 18 and the control rectifier 19 are turned on. At this time, it is preferable that both of the heating current u-turn rectifier 18 and the control rectifier 19 are SCR.

In addition to the above-described embodiments, a plurality of embodiments are disclosed in the preceding registered patents, but the description thereof will be omitted since they are included in detail in the preceding registered patents.

As described above, since the first heating line 13 and the second heating line 15 are connected by the NTC thermistor 14 in the heating line heating process, a single heating line is formed. In this case, when the first heating wire 13 or the second heating wire 15 is disconnected due to user's carelessness, the entire heating wire 16 does not operate, and thus there is a problem in that heat generation does not occur.

Accordingly, an object of the present invention is to detect the temperature of the heating wire and to adjust the temperature by the parallel heating wire method of connecting the first heating wire and the second heating wire in parallel, not the series heating wire method of connecting the first heating wire and the second heating wire in series. To provide a magneticless thermostat and a method of controlling the same.

Magnetic field temperature controller of the present invention for achieving the above object; A heating wire including a first heating wire, a thermistor surrounding the outer circumferential surface of the first heating wire, a second heating wire wound on the outer circumferential surface of the thermistor, and a coating for insulating the outer circumferential surface of the second heating wire, and a temperature signal output from the first heating wire. A temperature signal voltage detector which detects and outputs a voltage, a temperature controller which receives a temperature signal voltage of the temperature signal voltage detector, and outputs a power control signal according to the temperature signal voltage, and a power control signal of the temperature controller And a conduction control unit for connecting the first heating wire and the second heating wire so that the first heating wire and the second heating wire are heated in parallel, respectively, and the heating current flowing in the first heating wire and the second heating wire is opposite to each other. It is characterized by.

The conduction control unit, the cathode of the thyristor is connected to one end of the AC power source, the trigger input unit for receiving the power control signal of the temperature control controller between the gate and the cathode is connected to the thyristor gate. The first heating wire of the two parallel heating wires between the anode of the thyristor and the other end of the AC power source is connected to the thyristor anode at one end thereof, and the other end thereof is connected to the other end of the AC power source through the second rectifier cathode and the anode, and the second heating wire is made at the other end thereof. And connected to the thyristor anode via a rectifier anode and a cathode. One end is connected to the other end of the AC power source, characterized in that the first heating wire and the second heating wire performs a heating operation in parallel.

The conduction control unit, the anode of the thyristor is connected to one end of the AC power source and the trigger input unit for receiving the power control signal of the temperature control controller between the gate and the cathode is connected to the thyristor gate. The first heating wire of the two parallel heating wires between the cathode of the thyristor and the other end of the AC power source is connected to the thyristor cathode at one end thereof, and the other end thereof is connected to the other end of the AC power source through the second rectifier anode and the cathode, and the second heating wire is made at the other end thereof. And connected to the thyristor cathode via a rectifier cathode and an anode. One end is connected to the other end of the AC power source, characterized in that the first heating wire and the second heating wire performs a heating operation in parallel.

The conduction controller may include a trigger input unit configured to receive a power control signal of a temperature control controller; A thyristor comprising a cathode connected to one end of the AC input power, a gate connected to an output end of the trigger input unit, and an anode connected to one end of the first heating wire; A first rectifier including an anode of the thyristor and a cathode connected to one end of the first heating wire and an anode connected to the other end of the second heating wire; And a second rectifier comprising a cathode connected to the other end of the first heating wire and an anode connected to the other end of the AC power source.

The conduction controller may include a trigger input unit configured to receive a power control signal of a temperature control controller; A thyristor comprising an anode connected to one end of the AC input power, a gate connected to an output end of the trigger input unit, and a cathode connected to one end of the first heating wire; A first rectifier including an anode connected to the cathode of the thyristor and one end of the first heating wire, and a cathode connected to the other end of the second heating wire; And a second rectifier comprising an anode connected to the other end of the first heating wire and a cathode connected to the other end of the AC power source.

The magnetic field-free thermostat further comprises a temperature signal supply unit having one end connected to one end of the AC input power and the other end connected to one end of the first heating wire.

The temperature control controller is characterized in that the microcontroller microcomputer chip.

The temperature signal detection of the temperature signal voltage detection unit may be detected between the cathode of the second rectifier connected to the other end of the first heating wire and the other end of the AC input power source.

The temperature signal detection of the temperature signal voltage detection unit may be detected between an anode to which one end of the first heating wire is connected and the other end of the AC power source.

The temperature signal detection of the temperature signal voltage detection unit may be detected between both ends of the temperature signal voltage supply unit to which one end of the first heating wire is connected.

The temperature signal voltage output of the temperature signal voltage detector is connected in series with a porter coupler light emitting diode to insulate and output the temperature signal voltage to the photocoupler light receiver.

The temperature signal voltage output of the temperature signal voltage detector is connected in series with a zener diode to output the temperature signal voltage by comparing with the zener potential.

The temperature control controller is connected in parallel with the temperature signal voltage detector.

Magnetic-free temperature control method of the present invention for achieving the above object; A method of controlling a magnetic field temperature controller including a heating wire using an NTC thermistor as a filler between a first heating wire and a second heating wire, wherein the first heating wire and the second heating wire are connected in parallel to perform parallel heating operation in parallel without magnetic field. A heating current induction process, a temperature detection process for detecting a temperature signal voltage between the first heating wire and the second heating wire, and a temperature regulation control process for automatically controlling the temperature of the heating wires by receiving the temperature signal voltage, The first heating wire and the second heating wire are characterized in that the temperature detection and the parallel heating operation alternately performs with a time difference.

The magnetic field-free thermostat of the present invention generates a heating wire by a double heating wire system in which the first heating wire and the second heating wire are connected in parallel, so that the heating wire is continuously generated by the other even if one of the first heating wire and the second heating wire is disconnected. Has the effect of generating heat.

1 is a view showing the configuration of a general electromagnetic wave thermostat

FIG. 2 is a diagram illustrating an equivalent circuit of a heating unit according to a positive power supply of the AC input power supply of FIG. 1.

3 is a diagram illustrating an equivalent circuit of a heating unit according to a negative power of the AC input power of FIG. 1.

4 is a view illustrating a temperature detection and heating operation and a magnetic field forming process according to a general AC input power source.

5 is a view showing the configuration of a heating unit of the magneticless temperature controller according to the first embodiment of the present invention

FIG. 6 is a diagram illustrating an equivalent circuit of a heating unit with respect to the constant power of the AC input power of FIG. 5.

7 illustrates an equivalent circuit of a heating unit with respect to a negative power supply of the AC input power supply of FIG. 5.

8 is a view for explaining the operation of the heating unit according to the AC input power of the present invention

9 is a view illustrating a method of forming a magnetic field according to an AC input power source of the present invention.

10 is a view for explaining the structure of the heating wire applied to the present invention

FIG. 11 is a diagram illustrating an equivalent circuit of a heating unit of a magneticless temperature controller with respect to a constant power source of an AC input power source according to a second embodiment of the present disclosure.

12 is an equivalent circuit diagram of a heating unit of a magneticless temperature controller with respect to a constant power source of an AC input power source according to a third embodiment of the present invention.

FIG. 13 is a diagram illustrating an equivalent circuit of a heating unit of a magneticless temperature controller with respect to a constant power source of an AC input power source according to a third embodiment of the present disclosure.

14 is a view showing a first application circuit of the magnetic field temperature controller to which the heating unit according to the present invention is applied;

15 is a view showing a second application circuit of the magnetic field temperature controller to which the heating unit according to the present invention is applied;

※ Explanation of codes for main parts of drawing

15: heating wire 100: trigger signal input unit

112: controlled rectifier 113: first rectifier

114: second rectifier 200: temperature signal detection output unit

With reference to the drawings will be described the configuration and operation of the magnetic field temperature controller according to the present invention.

5 is a view showing the configuration of a heating unit of the magnetic field temperature controller according to the first embodiment of the present invention, Figure 6 is a view showing an equivalent circuit of the heating unit for the constant power of the AC input power of Figure 5, Figure 7 5 is a diagram illustrating an equivalent circuit of a heating unit with respect to a negative power supply of the AC input power source of FIG. 5, FIG. 8 is a view for explaining an operation of the heating unit according to the AC input power source of the present invention, and FIG. 10 is a view for explaining a method of forming a magnetic field according to a power source, and FIG. 10 is a view for explaining a structure of a heating wire applied to the present invention. A description with reference to FIGS. 5 to 10 is as follows.

The magnetic field-free thermostat according to the present invention is a heating unit 150 for performing a heat generating operation for generating a heating wire by the temperature detection operation of the heating wire in a half cycle unit of the AC input power and a dual heating method (or "parallel heating method"). ) And the temperature control control unit 30.

The heating unit 150 includes a heating line 16, a temperature signal supply unit 31, and a conduction control unit 151 to detect the temperature of the heating line 16 during a line (positive) half cycle of AC input power. The temperature signal is output to the temperature control controller 30, and a heating current is provided to each of the first heating wire 13 and the second heating wire 15 during the next (negative) half cycle of the AC input power to generate heat in parallel.

As shown in FIG. 10, the heating line 16 includes a core 25, a first heating wire 13 wound around the core 25, and an NTC thermistor 14 surrounding the outer circumferential surface of the first heating wire 13. And a sheath 26 that wraps and insulates the second heating wire 15 so as to call the second heating wire 15 wound around the outer circumferential surface of the NTC thermistor 14 and the second heating wire 15. One end of the first heating wire 13 is connected to one end of the AC input power supply unit, the other end is connected to the temperature control controller 30, and the second heating wire 15 is connected to the other end of the AC input power supply. The other end is connected to the other end of the AC input power source, i.e., grounded.

The temperature signal supply unit 31 receives an AC input power from the AC input power supply unit and receives a temperature signal (voltage or voltage) according to the temperature of the NTC thermistor 14 configured between the first heating wire 13 and the second heating wire 15. Current). The temperature signal supply part 31 is a resistor 111.

The conduction controller 151 includes a trigger input unit 100, a control rectifier 112, a first rectifier 113, and a second rectifier 114.

The trigger input unit 100 has one end connected to one end of the AC input power unit and the temperature control controller 30 and the other end connected to the control rectifier 112, and receives the trigger output from the temperature control controller 30 to control it. Output to the rectifier 112.

The control rectifier 112 is a thyristor (SCT), the cathode is connected to one end of the AC input power, the anode is connected to one end of the first heating line 13, the gate is configured to be connected to the other end of the trigger input unit 100 Then, it is turned on / off by the trigger output from the trigger input unit 100.

The first rectifier 113 has a cathode connected to the anode of the control rectifier 112 and one end of the first heating line 13, and the anode is connected to the other end of the second heating line 114.

And the cathode of the second rectifier 114 is connected to the other end of the first heating line 13, the anode is grounded.

The first rectifier 113 and the second rectifier 114 connect the first heating wire 13 to the temperature control controller 30 in an equivalent circuit during the line (positive) half period of the AC input power, and the second heating wire ( 15) is disconnected, and the first heating wire 13 and the second heating wire 15 are connected in parallel to the AC input power in an equivalent circuit during the subsequent (negative) half cycle of the AC input power. The heating wire 13 and the second heating wire 15 are to generate heat respectively. Specifically, the first rectifier 113 connects the other end of the second heating line 15 to the anode of the control rectifier 112 with respect to the heating current, and the second rectifier 114 is connected to the other end of the first heating line 13. One end of the second heating wire 15 is connected so that the first heating wire 13 and the second heating wire 15 are connected in parallel so that the heating current output from the AC input power source is transferred to the first heating wire 13 and the second heating wire ( 15) to distribute the current. Each of the divided heating currents heats the first heating wire 13 and the second heating wire. Therefore, the magnetic field-less thermostat of the present invention may continuously generate heat through the heating line 16 even when one of the first heating wire 13 and the second heating wire is broken.

Since the temperature control control part 30 is the same as the structure of the above-mentioned prior registration patent, and is explained in detail in the temperature control control part 30 of a prior registration patent, it demonstrates briefly.

The temperature control controller 30 receives a temperature signal based on a temperature detection current and a resistance value of the thermistor, measures a temperature, and outputs a trigger according to the measured temperature to the trigger input unit 100.

Referring to FIGS. 6 and 9, the first rectifier 114 is equivalently disconnected as shown in FIG. 6 during an AC input power, that is, a line cycle (positive period in FIG. 8) of the AC input power. do. Accordingly, the AC input power is supplied to the first heating wire 13, the NTC thermistor 14, and the second heating wire 15, and the AC input power and the first and

second heating wires

13 and 15 of the NTC thermistor 14 are connected. The temperature detection current according to the resistance value according to the temperature flows along the paths of the AC input power, the resistor 111, the first heating wire 13, the NTC thermistor 14, and the second heating wire 15. At this time, since the direction of the temperature detection current flowing through the first heating wire 13 and the second heating wire 15 is opposite, the magnetic field is canceled as shown in FIG. 9 to form a magnetic field.

However, during the later half cycle of the AC input power (negative cycle of FIG. 8), as shown in FIG. 7, the first rectifier 113 normally forms a path to generate a heating current by the AC input power, and the heating current is generated by the first heating wire ( 13) and second heating wire 15 are distributed and supplied. In this case, the control rectifier 112 should be turned on by receiving a trigger through the trigger input unit 100.

The first heating wire 13 and the second heating wire 15 receiving the divided heating current generate heat by the distributed heating current. At this time, since the direction of current flowing through the first heating wire 13 and the second heating wire 15 is opposite, they are mutually offset as shown in FIG. 9 to form a magnetic field.

11 and 12 are diagrams showing an equivalent circuit of a heating unit of a magnetic field temperature controller with respect to both power sources of the AC input power according to the second and third embodiments of the present invention.

11 and 12 may be configured to further include a temperature signal adjusting unit 120 for adjusting the temperature signal of various forms.

The temperature signal controller 120 adjusts a temperature signal (voltage or current) generated by the temperature signal supply unit 120 to arbitrarily adjust a temperature and a temperature signal proportional relationship. The temperature signal storage unit 120 may be configured as a variable resistor as shown in FIGS. 11 and 12, and may be configured in various forms as shown in FIGS. 11 and 12.

FIG. 13 is a diagram illustrating an equivalent circuit of a heating unit of a magneticless temperature controller with respect to both power sources of the AC input power according to the third embodiment of the present invention, and protects the temperature control controller 30 from the high voltage applied to the heating line 16. In order to show the case further includes a photo coupler 122 to electrically insulate the heating unit 150 and the temperature control control unit 30.

In addition, in FIG. 13, a zener diode 121 further includes a cathode connected to the other end of the first heating wire 13 and an anode connected to the anode of the light emitting diode of the photo coupler 122. That is, the case where the temperature is detected by flowing the temperature detection current to the light emitting diode of the photocoupler 122 only when the breakdown voltage (Zener voltage) of the zener diode 121 is equal to or higher is shown.

FIG. 14 is a diagram illustrating a first application circuit of a magneto-less thermostat to which a heating unit is applied according to the present invention. The second embodiment is applied to the magnetic-free thermostat and two resistors in which the trigger input unit 100 are connected in parallel. And a capacitor 34 connected between the two

resistors

33 and 35 and the gate of the control rectifier 112.

FIG. 15 is a view illustrating a second application circuit of a magnetic field temperature controller to which a heating unit is applied according to a fourth embodiment of the present invention. The first embodiment is applied to the magnetic field temperature controller, and the trigger input unit 100 is a capacitor 41. ) And a resistor 42 connected in series with the capacitor 41, a gate of the control rectifier 112 is connected between the capacitor 41 and the resistor 42, and the temperature control controller 30 is a microcomputer. (210) is shown.

The microcomputer 210 operates by receiving AC input power as a synchronous signal through the resistor 40 to operate in synchronization with the AC input power. The microcomputer 210 operates in synchronization with the AC synchronization signal to detect the temperature of the heating line 16 through the light receiving unit of the photocoupler 122, and generates a trigger to adjust the temperature of the heating line 16 to the set temperature. Output to the trigger input unit 100. Since the temperature is controlled by the microcomputer 210 operating by a DC power source, the temperature controller according to the fourth embodiment includes a DC power supply unit 220 that generates and outputs a DC power by receiving an AC input power. It further includes a variable resistor 43 for adjusting the DC power output from the power supply unit 220 to the power required by the microcomputer 210.

On the other hand, the present invention is not limited to the above-described typical preferred embodiment, but can be carried out in various ways without departing from the gist of the present invention, various modifications, alterations, substitutions or additions in the art Anyone who has this can easily understand it. If such improvement, change, substitution or addition is carried out within the scope of the appended claims, the technical spirit should also be regarded as belonging to the present invention.

Claims

A heating wire including a first heating wire, a thermistor surrounding the outer circumferential surface of the first heating wire, a second heating wire wound around the outer circumferential surface of the thermistor, and a coating for insulating the outer circumferential surface of the second heating wire;

A temperature signal voltage detector for detecting and outputting a temperature signal voltage output from the first heating wire;

A temperature control controller which receives a temperature signal voltage of the temperature signal voltage detector and outputs a power control signal according to the temperature signal voltage;

The first heating wire and the second heating wire are heated in parallel with each other by the power control signal of the temperature control controller, and the heating current directions flowing in the first heating wire and the second heating wire are opposite to each other. Magnetic field temperature regulator comprising a conduction control unit for connecting a heating wire.
The method of claim 1,

The conduction control unit,

The cathode of the thyristor is connected to one end of the AC power source, and the trigger input unit for receiving the power control signal of the temperature control controller between the gate and the cathode is connected to the thyristor gate.

The first heating wire of the two parallel heating wires between the anode of the thyristor and the other end of the AC power source is connected to the thyristor anode and the other end thereof is connected to the other end of the AC power source through the second rectifier cathode and the anode.

The second heating wire is connected at the other end to the thyristor anode through the first rectifier anode and the cathode. One end is connected to the other end of the AC power source, characterized in that the first heating wire and the second heating wire performs a heating operation in parallel.
The method of claim 1,

The conduction control unit,

An anode of the thyristor is connected to one end of the AC power source, and a trigger input unit for receiving the power control signal of the temperature control controller between the gate and the cathode is connected to the thyristor gate.

The first heating wire of the two parallel heating wires between the cathode of the thyristor and the other end of the AC power source is connected to the thyristor cathode and the other end thereof is connected to the other end of the AC power source through the second rectifier anode and the cathode.

The second heating wire is connected at the other end to the thyristor cathode through the first rectifier cathode and the anode. One end is connected to the other end of the AC power source, characterized in that the first heating wire and the second heating wire performs a heating operation in parallel.
The method of claim 1,

The conduction control unit,

A trigger input unit for receiving a power control signal of a temperature control controller;

A thyristor comprising a cathode connected to one end of the AC input power, a gate connected to an output end of the trigger input unit, and an anode connected to one end of the first heating wire;

A first rectifier including an anode of the thyristor and a cathode connected to one end of the first heating wire and an anode connected to the other end of the second heating wire;

And a second rectifier comprising a cathode connected to the other end of the first heating wire and an anode connected to the other end of the AC power source.
The method of claim 1,

The conduction control unit,

A trigger input unit for receiving a power control signal of a temperature control controller;

A thyristor comprising an anode connected to one end of the AC input power, a gate connected to an output end of the trigger input unit, and a cathode connected to one end of the first heating wire;

A first rectifier including an anode connected to the cathode of the thyristor and one end of the first heating wire, and a cathode connected to the other end of the second heating wire;

And a second rectifier comprising an anode connected to the other end of the first heating wire and a cathode connected to the other end of the AC power source.
The method of claim 1,

And a temperature signal supply unit having one end connected to one end of the AC input power and the other end connected to one end of the first heating wire.
The method of claim 1,

Temperature control controller is a magnetic controller, characterized in that the microcontroller microcomputer chip.
The method of claim 1,

And detecting the temperature signal of the temperature signal voltage detection unit between the cathode of the second rectifier connected to the other end of the first heating wire and the other end of the AC input power source.
The method of claim 1,

The temperature signal detection of the temperature signal voltage detector is detected between the anode and the other end of the AC power source is connected to one end of the first heating wire.
The method of claim 1,

And the temperature signal detection of the temperature signal voltage detector is detected between both ends of the temperature signal voltage supply unit to which one end of the first heating wire is connected.
The method according to any one of claims 8, 9 and 10,

And the temperature signal voltage output of the temperature signal voltage detector is connected in series with a porter coupler light emitting diode to insulate and output the temperature signal voltage to the photocoupler light receiver.
The method according to any one of claims 8, 9 and 10,

The temperature signal voltage output of the temperature signal voltage detector is connected in series with a zener diode to output the temperature signal voltage by comparing with the zener potential.
The method of claim 1,

And the temperature control controller is connected in parallel with the temperature signal voltage detector.
In the control method of the magnetic field-less thermostat comprising a heating wire using an NTC thermistor as a filler between the first heating wire and the second heating wire,

A parallel reverse heating current induction process of connecting the first heating wire and the second heating wire in parallel to operate in parallel without heating;

A temperature detection process of detecting a temperature signal voltage between the first heating wire and the second heating wire;

It includes a temperature control control process for receiving a temperature signal voltage and automatically controlling the temperature of the heating wires,

And the first heating wire and the second heating wire alternately perform the temperature detection and the parallel heating operation with a time difference.