KR102017378B1 - Flame sensor use for dryer machine - Google Patents

Abstract

The present invention relates to a flame sensor mounted on the laundry dryer for sensing the temperature of the heating unit, more specifically, the case; An output terminal of a conductive material fixed inside the case and having one end connected to a power input terminal of an igniter of a heating unit, and the other end connected to one end of the conductive plate; An input terminal of a conductive material fixed inside the case and connected to a power supply terminal having one end connected to an igniter, and the other end connected to one side of the bimetal member; One end is connected to the other end of the output terminal, the other end is a conductive plate attached to the fixed contact is inserted into the magnet body; One side is connected to the other end of the input terminal, characterized in that it comprises a bimetal member attached to the other side via a magnetic body guide attached to the other side with a movable contact is in electrical contact with the fixed contact of the conductive plate It relates to a flame sensor.

Description

Flame sensor for dryer {Flame sensor use for dryer machine}

The present invention relates to a flame sensor mounted on the laundry dryer for sensing the temperature of the heating unit, more specifically, the case; An output terminal of a conductive material fixed inside the case and having one end connected to a power input terminal of an igniter of a heating unit, and the other end connected to one end of the conductive plate; An input terminal of a conductive material fixed inside the case and connected to a power supply terminal having one end connected to an igniter, and the other end connected to one side of the bimetal member; One end is connected to the other end of the output terminal, the other end is a conductive plate attached to the fixed contact is inserted into the magnet body; One side is connected to the other end of the input terminal, characterized in that it comprises a bimetal member attached to the other side via a magnetic body guide attached to the other side with a movable contact is in electrical contact with the fixed contact of the conductive plate It relates to a flame sensor.

In general, the electric dryer generates electricity by heating a coil such as a coil by using electricity and causes external air to be heated through the heating wire to circulate the drum, thereby drying the laundry inside the drum containing the laundry in a wet state. Let's go.

The electric dryer includes a heating unit including a drum accommodating laundry, a hot air supply duct mounted on one side of the drum to supply hot air into the drum, and a heating wire such as a coil heated when electricity is supplied to the drum, and the heating unit. Flame sensors (also referred to as 'flame sensors') that sense the temperature are installed.

The technique related to such a conventional flame sensor for a dryer is known from the Republic of Korea Patent Publication No. 10-2003-8639 and the Republic of Korea Patent Publication No. 10-2006-4014. However, the conventional flame sensor for a dryer has a disadvantage that the manufacturing cost is increased because of a complex structure, thereby reducing the reliability and life of the sensor.

The present invention has been made to solve the above-mentioned conventional problems, it is made of a simpler and simpler structure compared to the conventional flame sensor for the dryer, thereby improving the reliability and life of the flame sensor SUMMARY OF THE INVENTION There is a technical problem of the present invention in providing a configuration of a flame sensor for a dryer.

Dryer flame sensor of the present invention for achieving the above technical problem, the case; An output terminal of a conductive material fixed inside the case and having one end connected to a power input terminal of an igniter of a heating unit, and the other end connected to one end of the conductive plate; An input terminal of a conductive material fixed inside the case and connected to a power supply terminal having one end connected to an igniter, and the other end connected to one side of the bimetal member; One end is connected to the other end of the output terminal, the other end is a conductive plate attached to the fixed contact is inserted into the magnet body; One side is connected to the other end of the input terminal, characterized in that it comprises a bimetal member attached to the other side via a magnetic body guide attached to the other side with a movable contact is in electrical contact with the fixed contact of the conductive plate do.

Dryer flame sensor of the present invention having the configuration as described above has a simple structure consisting of an output terminal, an input terminal, a conductive plate and a bimetal member can improve the operational reliability of the flame sensor, the service life is increased It has the effect of reducing maintenance cost.

In addition, since the radiant heat of the igniter can be efficiently absorbed by the coating layer formed on the bimetallic member, it is a very advanced invention that has obtained the advantage that the switching operation of the sensor is surely performed.

1 is a view showing the installation position inside the dryer of the flame sensor of the present invention,
2 is an exploded perspective view of a flame sensor of the present invention;
3 is an internal configuration diagram of a flame sensor of the present invention,
4 is an operation state diagram of the flame sensor of the present invention.

Hereinafter, the configuration and operation of the flame sensor for a dryer of the present invention with reference to the drawings.

However, the disclosed drawings are provided as examples to sufficiently convey the spirit of the present invention to those skilled in the art. Accordingly, the invention is not limited to the drawings presented below, but may be embodied in other aspects.

In addition, unless there is another definition in terms used in the present specification, it has the meaning commonly understood by those of ordinary skill in the art to which the present invention belongs, and the gist of the present invention in the following description and the accompanying drawings. Detailed descriptions of well-known functions and configurations that may be unnecessarily blurred are omitted.

1 is a view showing the installation position of the dryer of the flame sensor of the present invention.

Referring to the drawings, the flame sensor 100 of the present invention is installed in the interior of the dryer 1, specifically, a housing containing the heating unit 10 made of a heating wire such as a coil that is heated when electricity is supplied ( 11) is attached.

At this time, the flame sensor 100 is a constant distance from the duct (3) for supplying the hot air generated by the rotation of the drum (2) and the fan (4) installed in the dryer (1) into the drum (2) Spaced apart from each other, the distance between the flame sensor 100, the drum 2 and the fan 4 is preferably set as a distance that can minimize interference in the temperature sensing of the flame sensor 100.

Hereinafter, the structure of the flame sensor 100 of this invention provided in the dryer 1 as above is demonstrated in detail.

2 is an exploded perspective view of the flame sensor of the present invention, Figure 3 is an internal configuration of the flame sensor of the present invention.

Referring to each of the drawings, the flame sensor 100 of the present invention is a case 110 forming a housing of the sensor, the case 110 is fixed inside the one end 121 is the igniter of the heating unit 10 (igniter, not shown) output terminal 120 of the conductive material and the other end 122 is connected to the one end 141 of the conductive plate 140, the inner end of the case 110 It is fixed to the one end 131 is connected to the power supply terminal is applied to the igniter and the other end 132 includes an input terminal 130 of a conductive material connected to one side 151 of the bimetal member 150. .

In addition, the flame sensor 100 of the present invention, the one end 141 is connected to the other end 122 of the output terminal 120 and the other end 142 is a fixed contact inserted into the magnet body 160 The conductive plate 140 and the one side piece 151 attached thereto are connected to the other end 132 of the input terminal 130 and attached to the other side 152 through the magnet body guide 161. And a bimetal member 150 having a moving contact 180 attached thereto to be electrically connected to the fixed contact 170 of the conductive plate 140.

At this time, the adjustment screw 190 is protruded vertically so as to penetrate the terminal surface of the output terminal 120 to contact the bottom surface of the conductive plate 140, the control plate 190 by adjusting the conductive screw ( 140) height can be adjusted.

In addition, the other end 132 of the input terminal 130 and one side 151 of the bimetal member 150 are coupled to each other by a connecting member 200 such as a rivet, the other end of the output terminal 120 One end 141 of the 122 and the conductive plate 140 are coupled to each other by a connector 201 such as a rivet.

In addition, the lower portion of the case 110 is attached to the window 310 made of tempered glass material to transmit the radiant heat transmitted to the bimetal member 150 and to prevent foreign matter from penetrating from the outside, the case 110 itself Is fastened on the housing 11 to accommodate the heating unit 10 by the bracket 300.

The output terminal 120 is a flat member made of a conductive material, the long hole 123 through which the adjustment screw 190 is formed is formed in the body of the terminal and the connecting member 201 is inserted into the other end 122 The hole 124 is drilled.

The input terminal 130 is a flat member made of a conductive material, the hole 133 is inserted into the connector body 200 is inserted into the terminal body.

Preferably, the output terminal 120 and the input terminal 130 is preferably used a brass material, specifically, the embodiment of the present invention, the output terminal 120 and the input terminal 130 as copper (Cu) 89.2 %, 10.8% zinc (Zn) brass material was used.

The conductive plate 140 has an insertion hole 144 into which the connector 201 is inserted into one side end 141, and a through hole through which the body of the fixed contact 170 passes through the other end 142. 143 is formed, the body of the conductive plate 140 from the other end 142 so that the other end 142 to which the fixed contact 170 is attached may be mounted at a higher position than the one end 141. It is a flat member formed inclined downward toward the one end 141, the adjustment screw 190 is in contact with the lower side of the other end 142, the height of the conductive plate 140 by the adjustment of the adjustment screw 190. Can be adjusted.

The conductive plate 140 is made of copper, copper alloy, stainless steel, and should be excellent in rust resistance. Specifically, the embodiment of the present invention employs an alloy composed of copper (Cu) 96.8%, nickel (Ni) 1.5%, cobalt (Co) 1.1% and silicon (Si) 0.6%.

The bimetal member 150 is a conventional member having a characteristic of bending when heat of the igniter of the heating unit 10 is applied, and has a side piece 151 having a predetermined thermal expansion coefficient.

In addition, the other side piece 152 of the bimetal member 150 is integrally formed by the central piece 153 vertically extending from the end of the one side piece 151 and the end of the other side 152. It is a member of a flat plate shape.

At this time, the coating layer 155 is formed on the surface of the one-side piece 151 to better absorb the radiant heat. The coating layer 155 is preferably a carbon coating layer. In addition, the one side piece 151 is perforated with an insertion hole 154 into which the connecting body 200 is inserted.

In addition, the magnet body 160 attached to the other end 142 of the conductive plate 140 is a state in which a fixed contact 170 is inserted into the body, and the fixed contact 170 is a flat head of the lower portion. 171 and the pin 172 protruding upward from the head 171, the pin 172 is inserted into the insertion hole 162 formed in the body of the magnet body 160 is fixed.

The fixed contact point 170 fixed in this way is electrically connected with the mobile contact point 180 attached through the magnetic body guide 161 attached to the distal end of the other side 152 of the bimetal member 150 so as to be shorted. In general, the fixed contact 170 and the moving contact 180 are in electrical contact with each other by a magnetic force interacting between the magnet body 160 and the magnet body guide 161, and thus, are in a short circuit state. When the one side piece 151 of 150 is bent downward by heat, the other side piece 152 connected by the center piece 153 is lifted upward, and is caused by the magnetic force between the magnet body 160 and the magnet body guide 161. By releasing the coupling, the fixed contact 170 and the moving contact 180 are electrically disconnected while they are in contact with each other.

Preferably, the bimetal member 150 is preferably formed using a corrosion-resistant iron-nickel material, specifically, the embodiment of the present invention is iron (Fe) 68%, nickel (Ni) 29.5% and manganese ( Mn) an alloy material composed of 2.5% was employed.

delete

In addition, the movable contact 180 is a member that is excellent in contact resistance, welding resistance, electrical conductivity and wear resistance, specifically, the embodiment of the present invention is an alloy consisting of 90% silver (Ag), 10% nickel (Ni) Material was adopted.

Hereinafter, the operation of the flame sensor 100 for a dryer of the present invention configured as described above will be described in detail.

4 is an operation state diagram of the flame sensor of the present invention.

Referring to part (a) of the drawing, in the initial state in which the dryer of the present invention is not powered, the igniter of the heating unit 10 is not ignited so that the temperature rise of the heating unit 10 does not occur, so that the bimetal of the flame sensor Since the position change of the one side piece 151 of the member 150 is not generated, the magnetic body guide of the magnet body 160 and the bimetal member 150 attached to the other front end 142 of the conductive plate 140 ( The fixed contact 170 and the moving contact 180 are in contact with each other by the magnetic force interacting between the 161, so that the fixed contact 170 and the moving contact 180 are electrically shorted.

Next, referring to part (b) of the drawing, when power is applied to the dryer in the initial state of (a), power applied to the igniter of the heating unit 10 is supplied through the input terminal 130 of the flame sensor. The supplied power is applied to the power input terminal of the igniter of the heating unit 10 through the input terminal 130, the bimetal member 150, and the output terminal 120, thereby providing the igniter of the heating unit 10. The radiant heat generated by the operation of the igniter is absorbed by the one side piece 151 of the bimetal member 150 having the coating layer 155 made of a carbon-like material on the surface thereof.

Then, as shown in part (c) of the figure, when a predetermined set time (approximately 5-20 seconds in the embodiment of the present invention) elapses after the power is applied and the igniter is operated, the bimetal member 150 that absorbs the radiant heat As the one side piece 151 is bent, the one side piece 151 is lowered downward by the bimetallic characteristic, and thus the other side piece 152 connected with the one side piece 151 is upwardly reversed.

At this time, when the force of the other side 152 of the bimetal member 150 to move upward is greater than the magnetic force between the magnet body 160 and the magnet body guide 161, the magnet body 160 ) And the magnetic body guide 161 are separated from each other, and thus the movable contact 180 attached to the magnetic body guide 161 is separated from the fixed contact 170 and electrically disconnected, thereby causing the igniter of the heating unit 10 to be removed. Will stop the operation.

Thereafter, when a predetermined set time (approximately 27 to 58 seconds in the embodiment of the present invention) elapses while the one side piece 151 of the bimetal member 150 is bent, it is absorbed by one side piece 151 of the bimetal member 150. Since the radiant heat is radiated into the air and the one side piece 151 is cooled, the one side piece 151 in a state of being lowered upward is raised upward while returning to its original position, and thus the one side piece 151 is The other side piece 152 connected is lowered downward.

Then, the magnetic body 160 and the magnetic body guide 161 which are separated from each other again come into contact with each other. Accordingly, the movable contact 180 attached to the magnetic body guide 161 is connected to the fixed contact 170. The operation of the igniter of the heating unit 10 is restarted while electrically shorted, and then the switch operation to the igniter of the heating unit 10 of the flame sensor as described above is continuously performed while the dryer power is applied. do.

5 shows the driving control means of the flame sensor 100 according to an embodiment of the present invention. As shown in FIG. 5, the present invention further includes drive control means for more stable control of the flame sensor 100.

As shown in FIG. 5, the driving control means controls the power supply module M10 according to the operation state of the power supply module M10 and the flame sensor 100 to supply power to the flame sensor 100. Module M20, a state sensing module M30 for detecting the state of the flame sensor 100 and transmits to the control module M20, and an emergency power module (M40) for always supplying power to the control module (M20). do.

The drive control means including the above configuration stably supplies power to the flame sensor 100 through the power supply module M10, and continuously detects the state of the flame sensor 100 through the state detection module M30. Controls the power supplied to the flame sensor 100 according to the operation state of the flame sensor 100, the control module (M20) can be driven normally even in an emergency, such as sudden power cut off through the emergency power module (M40). So that you can respond appropriately to accidents.

Hereinafter, a detailed description of each module of the driving control means will be made with reference to FIG. 5.

Referring to FIG. 5, the power supply module M10 may include a first filter unit M11 for removing noise included in an AC input power, and a rectifier unit M12 for rectifying the input power from which noise is removed to generate a DC intermediate power source. And a second filter unit M13 for removing instantaneous noise included in the intermediate power source when the power is turned on and off, and a conversion unit M14 for converting the intermediate power source to generate a supply power source.

For each part, first, the first filter unit M11 may include a first filtering circuit M111 that primarily removes noise of an input power source, a second filtering circuit M112 that secondly removes noise of an input power source, and a first filter unit M11. And an amplifying circuit M113 for amplifying the input power supply passing through the first filtering circuit M111 and applying it to the second filtering circuit M112.

More specifically, first, the first filtering circuit M111 includes an amplification npn first transistor Q101, both ends of the filter capacitor C101 connected to the base and the emitter of the first transistor Q101, and the first transistor. And an inductor L101 and capacitors C102 and C103 connected to the collector of Q101.

In addition, the second filtering circuit M112 includes an amplification npn second transistor Q102, a filter capacitor C104 connected to an output terminal of the second transistor Q102, a backflow prevention diode D101, and a buffer inductor L102. It includes. In particular, the filter capacitor (C104) is connected to the collector of the second transistor (Q102), the backflow prevention diode (D101) is connected in parallel between the filter capacitor (C104) and the buffer inductor (L102), buffer inductor L102 is connected to the emitter of the fourth transistor Q104 of the amplifier circuit M113 described later.

In addition, the amplifier circuit M113 includes a pnp third transistor Q103 and an npn fourth transistor Q104 connected in multiple stages. The multi-stage connection is configured by connecting the collector of the third transistor Q103 and the base of the fourth transistor Q104 to each other.

Referring to the operation and effect of the first filter unit M11 including the above configuration, first, in the first filtering circuit M111, the input power (eg, through the resistor R101 connected to the base of the first transistor Q103) is used. : When AC commercial power is applied, it is turned on and amplifies the input power. At this time, the inductor L101 and the capacitors C102 and C103 connected to the collector of the first transistor Q101 are amplified. The noise included in the input power is removed, and the filter capacitor C101 further removes the noise of the current flowing to the emitter and re-enters the first transistor Q101.

Thereafter, the input power from which noise is removed through the first filtering circuit M111 is amplified while passing through the third and fourth transistors Q103 and Q104 of the amplifying circuit M113, and thus, of the second filtering circuit M112. The second transistor Q102 is inputted to the second transistor Q102 side, and then the second transistor Q102 re-amplifies the input input power, and at this time, the filter capacitor C101 of the second filtering circuit M112 removes noise and performs a reverse flow. The prevention diode D101 prevents power backflow on the output side, and the buffer inductor L102 provides a delay through storage of input power transmitted to the rectifier M12.

Next, the rectifier M12, which is one component of the power supply module M10, is configured to generate a DC intermediate power by rectifying the input power from which noise is removed, and a technique related to AC-DC rectification has been well known. In order to implement the present invention, a person skilled in the art may fully refer to the related art, and thus detailed description or illustration of the rectifying unit M12 will be omitted.

Next, the second filter unit M13, which is one component of the power supply module M10, supplies the first power supply circuit M131 to supply the intermediate power to the conversion unit M14 when the power is turned on, and when the power is turned off. The noise of the intermediate power connected to the output terminal of the second power supply circuit M132 and the first and second power supply circuits M131 and M132 to supply the intermediate power to the conversion unit M14 to ground. And a third filtering circuit M133 to dissipate.

More specifically, the first power supply circuit M131 includes a pnp first switching transistor Q105 and an additional rectifier diode D102 and a bias resistor R110 (R111) provided at the base side of the first switching transistor Q105. ) And a bias capacitor (C107), a capacitor (C109) connected to the first switching transistor (Q105) emitter, and an output diode (D105) connected to the collector of the first switching transistor (Q105).

Next, the second power supply circuit M132 includes an additional rectifier diode D103 and a bias resistor R112 and R113 provided at the base side of the npn second switching transistor Q106 and the second switching transistor Q106. And an output diode D106 connected to the collector of the R114 and the bias capacitor C108 and the second switching transistor Q106.

Next, the third filtering circuit M133 includes an npn filtering transistor Q107 and a resistor R116 provided at the base side of the filtering transistor Q107.

Referring to the operation and effect of the second filter unit M13 having the above configuration, when the power supply is turned on, that is, when supplying the supply power to the flame sensor 100 through the conversion unit M14, the first power supply circuit (M131) ) Operates to transfer the intermediate power to the conversion unit M14, and when the power is off, that is, when the supply power is not supplied to the flame sensor 100 through the conversion unit M14, the second power supply circuit M132 In operation, the intermediate power is transmitted to the conversion unit M14.

In particular, the second filter unit M13 has a meaning when a power supply is switched on / off. More specifically, the second filter unit M13 may include a third filtering circuit at a time when the power supply is turned on until the storage capacitor C105 is fully charged. When the M133 is driven, noise flows into the intermediate power source. At this time, the additional rectifier diode D102 and the bias resistors R110 and R111 are biased by the storage capacitor C105 of the first power supply circuit M131. Since the bias voltage distributed by the capacitor C107 is higher than the emitter voltage of the first switching transistor Q105, the first switching transistor Q105 maintains a blocking state, and the second switching transistor Q106 operates to intermediate The power is transferred to the third filtering circuit M133, and the third filtering circuit M133 dissipates the introduced or generated noise through the emitter side ground of the filtering transistor Q107 and then supplies it to the converter M14. .

In addition, since the second switching circuit M132 cannot be driven by the voltage charged in the storage capacitor C105 at the moment when the power is turned off, the second switching transistor Q106 is turned off, and the storage capacitor C105 is discharged. While the first switching circuit M131 is driven to transfer the intermediate power to the third filtering circuit M133, and the third filtering circuit M133 transmits the introduced or generated noise to the emitter side ground of the filtering transistor Q107. After extinction through the supply to the conversion unit (M14).

Next, the conversion unit M14, which is one component of the power supply module M10, includes a switching circuit M141, a storage circuit M142, a comparison circuit M143, and a control circuit M144, and a control circuit. The M144 performs PWM control when the phase and the reference voltage of the power supply are in phase, and performs PFM control when there is a phase difference.

For each circuit, in more detail, first, the switching circuit M141 serves to switch an intermediate power supply, and includes a PMOS switching transistor M1 and an NMOS synchronous rectification transistor M2 connected in series with each other.

Next, the storage circuit M142 stores the supply power by switching the intermediate power of the switching circuit M141, and the inductor L103 connected to the output side of the switching circuit M141 and a capacitor connected in parallel thereto. C111).

Next, the comparison circuit M143 serves to compare the reference voltage to be converted with the voltage and phase of the power supply, and selectively selects the output terminal of the inverting comparator COM1 and the inverting comparator COM1 connected to the input terminal of the intermediate power supply. An OR gate OR1 and a resistor R117 connected to each other include a delay element Delay connected between the gate of the switching transistor M1 and the OR gate OR1.

Next, the control circuit M144 controls the switching circuit M141 so that the supply power source corresponds to the reference voltage, and the output terminal of the inverting comparator COM1, the output terminal of the OR gate OR1, and the switching are performed. And a modulation control element MC connected to the circuit M141.

Referring to the operation and effects of the conversion unit M14 including the above configuration, in general, the operation of the flame sensor 100 requires a periodic signal (clock, CLK), such a periodic signal is made of a pulse type Therefore, pulsed power supply (supply power supply) must be supplied. PWM control is used to supply such pulsed power. When the power supply for the clock period (hereinafter, the long cycle power) is supplied, the PWM control becomes inefficient. In order to solve this problem, the conversion unit M14 has an effect of improving power supply efficiency by switching to PFM control when supplying power for a long cycle.

To this end, the conversion unit M14 compares the voltage and phase of the supply power stored in the storage circuit M142 with the reference voltage in the comparison circuit M143, and when the phase and reference voltage of the supply power are in phase, When the PWM control is performed and there is a phase difference (long cycle power supply), the control circuit M144 performs the PFM control to maximize efficiency.

Subsequently, referring to FIG. 5, the state detection module M30 may include a state detection unit M31 that detects a data processing state of the flame sensor 100, that is, a clock cycle, and a temperature detection unit that detects a temperature rise of the flame sensor 100. (M32).

More specifically, the state detection unit M31 includes a monitoring element M311 for detecting the clock cycle used in the flame sensor 100, the temperature detection unit temperature sensor (M321) for detecting the operating temperature of the flame sensor 100 ) May be included.

Through the configuration of the state detection module M30, the control module M20 continuously detects the state of the flame sensor 100 to supply power to the flame sensor 100 according to the operation state of the flame sensor 100. To control. For example, when it is necessary to reduce the clock cycle of the flame sensor 100, the state detector M31 detects the clock cycle of the flame sensor 100, and based on this, the control module M20 at the power supply module M10 Control to reduce the pulse period of the supplied power supply. As another example, when an abnormality occurs in the flame sensor 100 and the temperature of the flame sensor 100 increases abnormally, the temperature detector M32 detects an operating temperature of the flame sensor 100 and based on the control module. M20 controls to cut off the emergency power supplied from the power supply module (M10).

In particular, the control module (M20) is preferably supplied with power at all times in preparation for an emergency situation, for this purpose, the drive control means in the emergency, such as suddenly cut off the power through the emergency power module (M40) control module (M20) ) So that it can operate normally so that it can respond appropriately to accidents.

More specifically, the emergency power module M40 is connected to the output terminal of the second filter unit M13 and receives and stores intermediate power from the second filter unit M13, and then controls in an emergency (when power is cut off). The emergency power module M40 supplies power to the module M20, and the emergency power module M40 includes a voltage conversion resistor R401 and R402, a charging capacitor C401 and C402 connected in parallel thereto, and a discharge connected in series thereto. The prevention diode D401 is included.

Emergency power supply module M40 including the above configuration by storing the above-described 'noise medium power' through the voltage conversion resistor (R401) (R402) in the charging capacitor (C401) (C402) (C403) In the event of an emergency, power can be supplied to the control module M20, and at this time, the power charged in the capacitors C401, C402, and C403 through the diode D401 is not discharged.

Although the configuration and operation of the flame sensor for a dryer of the present invention in the above description in detail with reference to the accompanying drawings, the present invention is capable of various modifications, changes and substitutions by those skilled in the art, such modifications, changes and substitutions the present invention It should be interpreted as falling within the protection scope of.

Explanation of symbols on the main parts of the drawings
One; Dryer 2; drum
3; Duct 4; Pan
10; Heating section 11; housing
100; Flame sensor 110; case
120; Output terminal 121: one end
122: other end 123: long hole
124: hole 130; Input terminal
131: one end 131: the other end
140; Conductor Plate 141: One Side Tip
142: other end 150; Bimetal member
151: one side 152: the other side
152: center piece 154: insertion hole
155: coating layer 160; Magnet
161; Magnet guide 162: interpolation
170; Fixed contact 171: head
172: pin 180; Moving contact
190; Adjusting screw 200,201; Connection
300; Bracket 310; window

Claims (4)

In the flame sensor for detecting the temperature of the igniter of the heating unit 10,
Case 110;
It is fixed to the inside of the case 110 and one end 121 is connected to the power input terminal of the igniter of the heating unit 10, the other end 122 is connected to the one end 141 of the conductive plate 140. An output terminal 120 of conductive material;
It is fixed inside the case 110 and one end 131 is connected to the power supply terminal is applied to the igniter, the other end 132 is of a conductive material connected to one side 151 of the bimetal member 150 Input terminal 130;
One end 141 is connected to the other end 122 of the output terminal 120, the other end 142 is a conductive plate 140 is attached to the fixed contact 170 is inserted into the magnet body 160 ; And
One side 151 is connected to the other end 132 of the input terminal 130, is attached to the other side 152 through the magnetic body guide 161, but the fixed contact 170 of the conductive plate 140 A bimetal member 150 having a movable contact 180 attached thereto to be electrically connected with the bimetal member 150;
Including,
And a control screw 190 vertically protruding to penetrate the terminal surface of the output terminal 120 to be in contact with the lower side of the other front end 142 of the conductive plate 140.
Adjusting the adjusting screw 190 to adjust the height of the conductive plate 140,
The bimetal member 150,
It is a flat plate member of the 'C' shape formed integrally by the central piece 153 extending perpendicularly from the end of the one side piece 151 and the end of the other side piece 152,
On the surface of the one side piece 151 is formed a coating layer 155 capable of absorbing radiant heat generated by the igniter
The coating layer 155 is a flame sensor, characterized in that the carbon coating layer.
delete The method according to claim 1,
The other end 132 of the input terminal 130 and one side 151 of the bimetal member 150 are coupled to each other by a connecting member 200 including a rivet,
The other end 122 of the output terminal 120 and one end 141 of the conductive plate 140 are coupled to each other by a connector 201 including a rivet,
A long hole 123 through which the adjusting screw 190 penetrates is formed in the body of the output terminal 120, and a hole 124 into which the connector 201 is inserted is drilled in the other end 122.
Flame sensor, characterized in that the hole 133 is inserted into the body of the input terminal 130 is inserted into the connector (200).
The method according to claim 1,
Further comprising a power supply module (M10) for supplying power to the flame sensor 100,
The power supply module M10 may include a first filter unit M11 for removing noise included in an AC input power source, a rectifier unit M12 for rectifying the input power source from which the noise is removed, and generating a DC intermediate power source, and turning on / off the power source. A second filter unit M13 for removing instantaneous noise included in the intermediate power source and a conversion unit M14 for converting the intermediate power source to generate supply power,
The first filter unit M11,
A first amplifying input power passing through the first filtering circuit M111 for removing the noise of the input power primarily, a second filtering circuit M112 for removing the noise of the input power secondly, and the first filtering circuit M111, and performing a second amplification; Including an amplifying circuit (M113) for applying to the filtering circuit (M112),
The first filtering circuit (M111) is connected to the collector of the filter capacitor (C101) and the first transistor (Q101) connected to the base and the emitter of the amplification npn first transistor (Q101), both ends of the first transistor (Q101). Connected inductor L101 and capacitors C102 and C103,
The second filtering circuit M112 may include an npn second transistor Q102 for amplification, a filter capacitor C104, a backflow prevention diode D101, and a buffer inductor L102 connected to an output terminal of the second transistor Q102. Including,
The amplifying circuit M113 includes a pnp third transistor Q103 and an npn fourth transistor Q104 connected in multiple stages, and connects the collector of the third transistor Q103 and the base of the fourth transistor Q104 to each other. Are constructed by
The filter capacitor C104 is connected to the collector of the second transistor Q102,
The backflow prevention diode D101 is connected in parallel between the filter capacitor C104 and the buffer inductor L102.
The buffer inductor L102 is connected to the emitter of the fourth transistor Q104 of the amplifier circuit M113,
The second filter unit M13,
A first power supply circuit M131 for supplying intermediate power to the conversion unit M14 when the power is on, a second power supply circuit M132 for supplying intermediate power to the conversion unit M14 when the power is off, and And a third filtering circuit M133 connected to the output terminals of the first and second power supply circuits M131 and M132 to dissipate the noise of the intermediate power output to ground.
The first power supply circuit M131 includes a pnp first switching transistor Q105 and an additional rectifier diode D102 and a bias resistor R110 (R111) provided at the base side of the first switching transistor Q105. A capacitor (C107), a capacitor (C109) connected to the first switching transistor (Q105) emitter and an output diode (D105) connected to the collector of the first switching transistor (Q105),
The second power supply circuit M132 includes an additional rectifying diode D103 and a bias resistor R112 (R113) (R114) provided at the base side of the npn second switching transistor Q106 and the second switching transistor Q106. And an output diode D106 connected to the collector of the bias capacitor C108 and the second switching transistor Q106,
The third filtering circuit (M133) comprises a npn filtering transistor (Q107) and a resistor (R116) provided on the base side of the filtering transistor (Q107).

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