CN103313639B

CN103313639B - Closet seat warming device

Info

Publication number: CN103313639B
Application number: CN201280005610.XA
Authority: CN
Inventors: 金子义行; 村濑阳一
Original assignee: Toto Ltd
Current assignee: Toto Ltd
Priority date: 2011-03-28
Filing date: 2012-03-22
Publication date: 2016-05-11
Anticipated expiration: 2032-03-22
Also published as: CN103313639A; JP5724510B2; WO2012133129A1; TW201244681A; TWI586304B; JP2012200486A

Abstract

The invention provides a kind of closet seat warming device, it is characterized by, possess: resonant circuit, has load coil and resonating capacitor; Electric conductor, is heated by the magnetic field induction that described load coil produced; Toilet seat, is provided with described electric conductor; Inverter, has the 1st switch element and controls the electric power of supplying with to described resonant circuit; Rectification part, carries out rectification to the electric current of being supplied with by commercial power; Step-down portion, has the 2nd switch element and the rectification output of described rectification part is carried out step-down and is supplied to described inverter; And control part, carry out Fast Heating pattern and Heat preservation pattern, under Fast Heating pattern, described inverter controlled and carried out eddy-current heating in the mode of the temperature that improves continuously described toilet seat, under Heat preservation pattern, described the 2nd switch element carried out to switch control and described rectification output is carried out step-down and is supplied to described inverter, and carrying out eddy-current heating in the mode that the temperature of described toilet seat is remained in set point of temperature. A kind of closet seat warming device that can realize by more simple structure Fast Heating and Heat preservation can be provided.

Description

Closet seat warming device

Technical field

Form of the present invention relates to a kind ofly can heat the closet seat warming device that is arranged on the toilet seat on closet.

Background technology

Generally speaking, in most closet seat warming devices, for example establish as electric heating body in the inside of toilet seatBe equipped with heater (heater) etc. When in heater when galvanization, the surface temperature of toilet seat is because of in heaterProduce Joule heat heat transmission and rise. For example, in the time that toilet seat is formed by resin, due to the thermal resistance of resinGreatly, therefore the temperature on toilet seat surface will rise to target temperature, likely needs tens of second to several minutesTime. Thereby, in order to make user imperceptible ice-cold in the time being seated at toilet seat, even user notSeat is also necessary, to heater energising, preheating is carried out in the surface of toilet seat in the time of toilet seat. Thereby, treat in inhibitionPower consumption when machine also realizes the leeway being improved on this aspect of energy-saving.

To this, there is a kind of toilet seat heating installation (patent literary composition that possesses heater and electromagnetic induction heating coilOffer 1). In the toilet seat heating installation of recording at patent documentation 1, when detecting while entering toilet, make electricityMagnetic induction heater coil moves and transient heating toilet seat. And, after being seated at toilet seat, by addingHot device is proceeded heating. But, if be provided for transient heating or Fast Heating as different systemHeating unit with for the heating unit of Heat preservation, exist structure to be tending towards complicated problem or cost and carryHigh problem.

Patent documentation 1: the JP 2008-18114 of Japan communique

Summary of the invention

The problem understanding of the present invention based on such is carried out, and its object is to provide one to pass through moreSimple structure realizes the closet seat warming device of Fast Heating and Heat preservation.

A kind of closet seat warming device is provided, it is characterized by, possess: resonant circuit, have load coil withResonating capacitor; Electric conductor, is heated by the magnetic field induction that described load coil produced; Toilet seat,Be provided with described electric conductor; Inverter (inverter), has the 1st switch element and controls to described resonance electricityThe electric power that road is supplied with; Rectification part, carries out rectification to the electric current of being supplied with by commercial power; Step-down portion, has the 2ndSwitch element and the rectification output of described rectification part is carried out step-down and is supplied to described inverter; And control part,Carry out Fast Heating pattern and Heat preservation pattern, under Fast Heating pattern, described inverter is controlled andMode with the temperature that improves continuously described toilet seat is carried out eddy-current heating, under Heat preservation pattern to the described the 2ndSwitch element carries out switch control and described rectification output is carried out step-down and is supplied to described inverter, and withThe mode that the temperature of described toilet seat is remained in set point of temperature is carried out eddy-current heating, described Fast Heating patternHave: the 1st Fast Heating pattern, described the 2nd switch element is controlled to continuous connection shape by described control partState, do not carry out step-down and be supplied to described inverter described rectification output, to improve continuously described toilet seatThe mode of temperature is carried out eddy-current heating; And the 2nd Fast Heating pattern, described control part is to described the 2nd switchElement carries out switch control, thereby described rectification output is carried out step-down and is supplied to described inverter, to connectThe mode of the continuous temperature that improves described toilet seat is carried out eddy-current heating.

A kind of warm toilet seat dress that can realize by more simple structure Fast Heating and Heat preservation is providedPut.

According to a form of the present invention, a kind of closet seat warming device is provided, it is characterized by, possess: resonance electricityRoad, has load coil and resonating capacitor; Electric conductor, is produced by described load coilMagnetic field induction heating; Toilet seat, is provided with described electric conductor; Inverter, has the 1st switch element and controlThe electric power that system is supplied with to described resonant circuit; Rectification part, carries out rectification to the electric current of being supplied with by commercial power;Step-down portion, has the 2nd switch element and the rectification output of described rectification part is carried out to step-down and described in being supplied toInverter; And control part, carry out Fast Heating pattern and Heat preservation pattern, under Fast Heating pattern to instituteState that inverter is controlled and carry out eddy-current heating in the mode of the temperature that improves continuously described toilet seat, insulation addsUnder heat pattern, described the 2nd switch element is carried out to switch control and described rectification output is carried out step-down and supplied withTo described inverter, and carry out eddy-current heating in the mode that the temperature of described toilet seat is remained in set point of temperature.

According to this closet seat warming device, control part carries out switch control to the 2nd switch element under Heat preservation patternSystem, fully carries out step-down and is supplied to inverter rectification output. Thus, control part does not change the 1st switchThe resonance action of the turn-on time of element etc., by with step-down portion, rectification output fully being carried out to step-down, therebyEddy-current heating output under Heat preservation pattern can be suppressed to the eddy-current heating being less than under Fast Heating patternOutput.

Thereby control part can make the electric power consumption under Heat preservation pattern be less than under Fast Heating patternElectric power consumption, remains on the temperature of toilet seat in set point of temperature. Thus, do not need for Fast HeatingHeating unit with arrange as different system for the heating unit of Heat preservation, can be by moreAdd simple structure and realize Fast Heating and Heat preservation. In addition, in the execution of Heat preservation pattern,The temperature that can suppress toilet seat sharply rises, and suppresses to produce temperature inequality. Thereby, can suppress to be seated at justThe user of seat feels bad.

In addition, because rectification is exported by step-down portion by abundant step-down, therefore being total under Heat preservation patternShake the input voltage of circuit lower than the input voltage of the resonant circuit under Fast Heating pattern. Thereby, control partIn the time carrying out respectively Fast Heating pattern and Heat preservation pattern, do not need to change the connection of the 1st switch elementThe control cycle of/disconnection. Control part can determine to be suitable for the operation condition of the resonance action of resonant circuitCycle.

Thereby, even if the resonance amplitude under Heat preservation pattern is less than the resonance amplitude under Fast Heating pattern,Also having resonance voltage is the time of no-voltage. Thereby control part can be by entering under Heat preservation patternRow ZVT moves and inhibition switching loss.

And, due to rectification output fully step-down of quilt by step-down portion, therefore under Heat preservation pattern, feelingAnswer mobile electric current in heater coil to be less than under Fast Heating pattern electric current mobile in load coil.Thereby, the stray field that can suppress to be produced by load coil, the user who suppresses being seated at toilet seat producesRaw impact.

In addition, according to a form of the present invention, provide a kind of closet seat warming device, it is characterized by, described fastSpeed heating mode has: the 1st Fast Heating pattern, described control part is controlled to described the 2nd switch elementOn-state continuously, does not carry out step-down and is supplied to described inverter described rectification output, to improve continuouslyThe mode of the temperature of described toilet seat is carried out eddy-current heating; And the 2nd Fast Heating pattern, described control part is to instituteState the 2nd switch element and carry out switch control, thereby described rectification output is carried out step-down and is supplied to described contraryBecome device, carry out eddy-current heating in the mode of the temperature that improves continuously described toilet seat.

According to this closet seat warming device, under the 1st Fast Heating pattern, control part is by the 2nd switch element controlBecome continuous on-state, rectification output is not carried out step-down and is supplied to inverter, improve continuously toilet seatTemperature. On the other hand, under the 2nd Fast Heating pattern, control part carries out switch control to the 2nd switch elementSystem, thus rectification output is carried out step-down and is supplied to inverter, improve continuously the temperature of toilet seat. Thus,Control part by initial execution the 1st Fast Heating pattern in Fast Heating pattern and after carry out the 2nd fastSpeed heating mode, or hour carry out the 2nd Fast Heating pattern in desired temperature rise value, thus energyEnough rate of rise in temperature of controlling the toilet seat under Fast Heating pattern by step-down portion, can suppress overshoot.

In addition, according to a form of the present invention, provide a kind of closet seat warming device, it is characterized by described controlPortion processed is as follows, carrying out when described Heat preservation pattern, by described step-down portion, described rectification output is carried outStep-down, so that electric power consumption reduces compared with carrying out when described the 2nd Fast Heating pattern.

According to this closet seat warming device, in the time carrying out Heat preservation pattern, rectification output is fallen by step-down portionPress, so that electric power consumption fully reduces compared with carrying out when the 2nd Fast Heating pattern. Thus, can makeToilet seat temperature stabilization under Heat preservation pattern, can more positively suppress stray field in addition.

In addition, according to a form of the present invention, provide a kind of closet seat warming device, it is characterized by described controlPortion processed is as follows, in the time that rated condition is set up, stops carrying out described Fast Heating pattern, in described rated conditionWhile being false, carry out described Heat preservation pattern.

According to this closet seat warming device, under the state in warm toilet seat function in opening, the holding of Fast Heating patternRow is only defined in rated condition period while setting up. In addition, in the time that rated condition is false, control part is carried out and is protectedTemperature heating mode. Thus, can further improve security.

In addition, according to a form of the present invention, provide a kind of closet seat warming device, it is characterized by, also possessDetect the detecting sensor of taking one's seat that user takes one's seat to described toilet seat, described control part is as follows, takes one's seat describedWhen the condition of taking one's seat described in detecting sensor does not detect is set up, carry out described Fast Heating pattern, describedWhen the condition of taking one's seat described in the detecting sensor of taking one's seat does not detect is false, carry out described Heat preservation pattern.

According to this closet seat warming device, in the time that the detecting sensor of taking one's seat detects that user is seated at toilet seat, controlPortion carries out Heat preservation pattern. Thus, can further improve the security of the user to being seated at toilet seat.

In addition, according to a form of the present invention, provide a kind of closet seat warming device, it is characterized by, also possess:Toilet cover, covers described toilet seat; And toilet cover opening _ closing detecting sensor, detect the open and-shut mode of described toilet cover, instituteState control part as follows, the condition of the closed condition of described toilet cover detected in described toilet cover opening _ closing detecting sensorWhen establishment, carry out described Fast Heating pattern, described toilet cover detected in described toilet cover opening _ closing detecting sensorThe condition of closed condition while being false, carry out described Heat preservation pattern.

According to this closet seat warming device, control part is as follows, detects that in toilet cover opening _ closing detecting sensor toilet cover closesState time, carry out Fast Heating pattern, do not detect in toilet cover opening _ closing detecting sensor the shape that toilet cover is closedWhen state, carry out Heat preservation pattern. Thereby control part switches to guarantor by heating mode from Fast Heating patternDuring the time of temperature heating mode is guaranteed to and starts to be opened to till the state in opening from toilet cover. CauseAnd, can improve the security of the user to being seated at toilet seat.

In addition, according to a form of the present invention, provide a kind of closet seat warming device, it is characterized by, also possess:Toilet cover, covers described toilet seat; And toilet cover opening _ closing detecting sensor, detect the open and-shut mode of described toilet cover, instituteState control part as follows, the bar of the open mode of described toilet cover do not detected in described toilet cover opening _ closing detecting sensorWhen part is set up, carry out described Fast Heating pattern, described in described toilet cover opening _ closing detecting sensor do not detectWhen the condition of the open mode of toilet cover is false, carry out described Heat preservation pattern.

According to this closet seat warming device, control part is as follows, does not detect that in toilet cover opening _ closing detecting sensor toilet cover beatsOpen state time, carry out Fast Heating pattern, detect in toilet cover opening _ closing detecting sensor the shape that toilet cover is openedWhen state, carry out Heat preservation pattern. Thereby, at the state that starts from toilet cover to be opened in opening be completelyOnly, control part can continue to carry out Fast Heating pattern and make the temperature of toilet seat approach proper temperature.Thus, can positively suppress user and in the time being seated at toilet seat, feel ice-cold.

In addition, according to a form of the present invention, provide a kind of closet seat warming device, it is characterized by, described in fallSplenium determines the dutycycle of the turn-on time of described the 2nd switch element according to described rectification output, described wholeThe less described dutycycle of the higher decision of stream output.

According to this closet seat warming device, control part can determine according to rectification output the connection of the 2nd switch elementThe dutycycle of time, carries out the FEEDFORWARD CONTROL that not affected by the output voltage of rectification part. Thereby, can enter oneStep improves security.

In addition, according to a form of the present invention, provide a kind of closet seat warming device, it is characterized by, also possessDetect the temperature sensor of the temperature of described toilet seat, described control part is as follows, if described temperature sensorDetected temperatures, higher than setting, is controlled to off-state by described the 2nd switch element.

According to this closet seat warming device, control part is as follows, if the detected temperatures of temperature sensor higher than setting,The 2nd switch element is controlled to off-state. Thereby the 2nd switch element has as safety deviceFunction. , control part can be controlled to off-state by the 2nd switch element, can disconnect to eddy-current heatingCoil electricity. Thereby, can further improve security.

Brief description of the drawings

Fig. 1 is the solid that illustrates the toilet-flushing apparatus that possesses the related closet seat warming device of embodiments of the present inventionIdeograph.

Fig. 2 is the ideograph that represents the toilet seat of present embodiment.

Fig. 3 is the circuit diagram of the related closet seat warming device of present embodiment.

Fig. 4 is other circuit diagrams of the related closet seat warming device of present embodiment.

Fig. 5 is Fast Heating pattern and the Heat preservation mould for the related closet seat warming device of comparative example is describedThe time diagram of formula.

Fig. 6 is that Fast Heating pattern and the insulation for the related closet seat warming device of present embodiment is described addsThe time diagram of heat pattern.

Fig. 7 is the time diagram of the small heating mode for the related closet seat warming device of present embodiment is described.

Fig. 8 is step-down action for the related closet seat warming device of present embodiment is described and the song of stray fieldLine chart.

Fig. 9 is the time diagram that represents the concrete example of the action of the related closet seat warming device of present embodiment.

Figure 10 is the time that represents other concrete examples of the action of the related closet seat warming device of present embodimentFigure.

Figure 11 be represent the action of the related closet seat warming device of present embodiment other other concrete examples timeBetween figure.

Figure 12 is the stream that represents other other concrete examples of the action of the related closet seat warming device of present embodimentCheng Tu.

Figure 13 be represent the action of the related closet seat warming device of present embodiment other other concrete examples timeBetween figure.

Figure 14 is the flow chart that represents the action of the related closet seat warming device of this concrete example.

Figure 15 be represent the action of the related closet seat warming device of present embodiment other other concrete examples timeBetween figure.

Figure 16 is the flow chart that represents the action of the related closet seat warming device of this concrete example.

Figure 17 be represent the action of the related closet seat warming device of present embodiment other other concrete examples timeBetween figure.

Figure 18 be represent the action of the related closet seat warming device of present embodiment other other concrete examples timeBetween figure.

Figure 19 is the flow chart that represents the action of the related closet seat warming device of this concrete example.

Symbol description

10-commercial power; 100-closet seat warming device; 200-toilet seat; 210-framework; Above 210a-; 222-senseAnswer heater coil; 231-electric conductor; 251-output instruction judegment part; 253-moves/stops instruction unit; 255-Thermistor (thermistor); The 257-control part that vibrates; 300-toilet cover; 400-shell; 402-enters the room to detect and passesSensor; The 404-detecting sensor of taking one's seat; 406-toilet cover opening _ closing detecting sensor; 410-control part; 421-inductionHeating power-on switch; 430-electric power consumption test section; 500-high-frequency power supply circuit; 510-rectification part; 520,520a-step-down portion; 521-the 2nd switch element; 522-diode; 523-step-down control part; 525-triangleRippleBecomeChange portion; 526-comparator (comparator); 530-filtering portion; 531-filter coil; 533-filter condenser;540-resonant circuit; 541-resonating capacitor; 550-inverter; 551-the 1st switch element; 552-flywheel twoUtmost point pipe; The Western-style toilet of 800-.

Detailed description of the invention

Below, with reference to accompanying drawing, embodiments of the present invention are described. And, in each figure, to identicalInscape mark same-sign suitable detailed.

In addition, Fig. 2 is the ideograph that represents the toilet seat of present embodiment.

And, Fig. 2 (a) be observe from top present embodiment toilet seat overlook ideograph, Fig. 2 (b)It is the cross-section model of the section A-A shown in Fig. 2 (a).

Toilet-flushing apparatus shown in Fig. 1 possesses: Western-style toilet 800; And closet seat warming device 1 disposed thereon00. Closet seat warming device 100 has shell 400, toilet seat 200 and toilet cover 300. By toilet seat 200 and toilet cover 300Open and close respectively the earth's axis freely and be supported in shell 400. Toilet cover 300 can cover toilet seat 200 under the state of closingTop. And, do not need to be necessarily provided with toilet cover 300.

The detecting sensor 402 of entering the room, detection user that detection user enters toilet are seated at toilet seat 200The detecting sensor 404 and detect the toilet cover opening _ closing detecting sensor 406 of open and-shut mode of toilet cover 300 of taking one's seatBe arranged at shell 400 (with reference to Fig. 3).

The detecting sensor of entering the room 402 can detect just opened the door of toilet and user after entering orWant to enter toilet and be positioned at user in front of the door. , the detecting sensor 402 of entering the room not only can detectTo the user who enters toilet, can also detect that entering toilet user before is positioned at healthBetween outside user in front of the door. As such detecting sensor 402 of entering the room, can use thermoelectric pickup (POr the microwave remote sensor of doppler sensor etc. etc. yroelectricSensor). Utilize the how general of microwave in useStrangle the sensor of effect or send microwave and detect detected body according to micro-wave amplitude (intensity) of reflectionSensor time, can cross the door of toilet and user's existence detected. , can detectEnter toilet user before.

As the detecting sensor 404 of taking one's seat, for example, can use the distance measuring sensor of infrared ray projection and accepted light formula etc. DoFor toilet cover opening _ closing detecting sensor 406, for example, can use combination or the microswitch of hall integrated circuit and magnet(microswitch) etc.

And toilet cover opening _ closing detecting sensor 406 is not limited to and is built in shell 400, also can be arranged onThe hinge portion of toilet cover 300 or the outside of shell 400. , toilet cover opening _ closing detecting sensor 406 is as long as can detectThe open and-shut mode of toilet cover 300. This point is for detecting sensor 404 and the detecting sensor 4 of entering the room of taking one's seat02 is also identical, and the detecting sensor of taking one's seat 404 and the detecting sensor 402 of entering the room are not limited to and are built in shellIn 400. , as long as the detecting sensor 404 of taking one's seat can detect that user is seated at toilet seat 200, entersAs long as chamber detecting sensor 402 can detect that user enters toilet. For example, also can adopt asLower method, is arranged on the entrance of toilet using the detecting sensor 402 of entering the room as split, pass through infrared rayThe signal that user is entered toilet by communication is delivered to the control part in shell 400.

As shown in Fig. 2 (b), toilet seat 200 has the framework 210 that forms toilet seat 200 profiles. Framework 210The material that for example has an insulating properties by Trees fat etc. forms. And framework 210 both can be formed by multiple members,Also can be formed by 1 member.

In framework 210 inside of toilet seat 200, be provided with the induction that produces magnetic field because passing into high frequency electric and addHeat coil 222. In the toilet seat 200 shown in Fig. 2, load coil 222 is attached to toilet seat 200 insideAbove (inner face relative with seated surface) 210a. But the set-up mode of load coil 222 alsoBe not limited to this, load coil 222 also can be arranged on the not shown support of toilet seat 200 insideBody supports.

The electric conductor (heating part) 231 of the magnetic field induction heating being produced by load coil 222 arrangesIn toilet seat 200. More specifically, electric conductor 231 is because eddy current generates heat, and this eddy current passes through by eddy-current heating lineEnclose 222 magnetic fields that produce and respond to generation. Electric conductor 231 be attached to toilet seat 200 above (seated surface).Or electric conductor 231 also can be arranged on framework 210 inside of toilet seat 200. Or, electric conductor 231Also can be attached to the 210a above of toilet seat 200 inside.

As electric conductor 231, for example can use the paramagnetic materials such as the ferromagnetic material such as iron, stainless steel or aluminium thisThe metal of sample. In order to make magnetic field be difficult to emit to toilet seat 200 outsides, more preferably electric conductor 231 uses resistanceThe large ferromagnetic material such as iron, stainless steel. And, in the time that electric conductor 231 is arranged on above toilet seat 200,More preferably the surface of electric conductor 231 is implemented the processing such as application, covering, to make human body and electric conductor 231Not directly contact.

According to present embodiment, closet seat warming device 100 can utilize inductive heating principle promptly to heat toilet seat 200 seated surface, can make seated surface reach proper temperature quickly. In addition, because present embodiment is relatedAnd closet seat warming device 100 can promptly heat the seated surface of toilet seat 200, therefore do not use userWhen toilet seat 200, do not need toilet seat 200 to be incubated. Thereby, the power consumption can suppress standby time,Realize energy-saving.

On the other hand, while sitting on toilet seat 200 after user is seated at toilet seat 200, need byThe seated surface of toilet seat 200 is incubated into proper temperature. For example,, if for seated surface is incubated and is arrangedAs the heater (heater) of resistive element, need the heating unit (eddy-current heating for Fast HeatingUnit) and arrange as different system for the heating unit (unit heater) of Heat preservation.Like this, likely cause closet seat warming device 100 complex structures or cost to improve.

On the other hand, the related closet seat warming device 100 of present embodiment is carried out fast and is added by eddy-current heatingHeat and Heat preservation. , the related closet seat warming device 100 of present embodiment can be carried out Fast Heating patternWith Heat preservation pattern, the mode with the seated surface temperature that improves continuously toilet seat 200 under Fast Heating pattern is enteredRow eddy-current heating, under Heat preservation pattern so that the seated surface temperature of toilet seat 200 is remained in set point of temperatureMode is carried out eddy-current heating. Thus, the related closet seat warming device 100 of present embodiment can pass through moreSimple structure realizes Fast Heating and Heat preservation.

In addition, Fig. 4 is other circuit diagrams of the related closet seat warming device of present embodiment.

For example, in shell 400, be provided with control part 410, eddy-current heating power-on switch 421 and electric power consumptionTest section 430. Control part 410 is to eddy-current heating power-on switch 421 transfer control signals. Eddy-current heating energisingSwitch 421 is controlled leading to high-frequency power supply circuit 500 according to the control signal sending from control part 410ON (the connection)/OFF (disconnection) of electricity. Electric power consumption test section 430 is measured to high-frequency power supply circuit 500 electrical current, indirectly detects and is arranged at toilet seat by taking advantage of calculation with the voltage of commercial power 10The electric power consumption of 200 electric conductor 231. On control part 410 and eddy-current heating power-on switch 421, connectThere is commercial power 10.

In toilet seat 200, be provided with and generate high frequency electric and supply with this high frequency electric to load coil 222High-frequency power supply circuit 500. High-frequency power supply circuit 500 has rectification part 510, step-down portion 520, filtering portion530, resonant circuit 540 and inverter 550.

Rectification part 510 is carried out rectification to the electric current of being supplied with by commercial power 10.

Step-down portion 520 is reduction voltage circuits of copped wave (chopper) formula, has the 2nd switch element 521, twoUtmost point pipe 522, step-down control part 523, triangular wave Bian Change portion 525, comparator 526 and filtering portion 530, rightThe rectification output of rectification part 510 is carried out step-down and is supplied to inverter 550. Filter coil 5 in filtering portion 53031 are not only as the part of chopped mode reduction voltage circuit and bring into play function with filter condenser 533. Filtered electricalContainer 533 is also brought into play flow and is carried out filtering and the effect supplied with in the large electric current of high frequency of inverter 550. FilterThereby swash circle 531 is also brought into play and is become high impedance for high frequency waves and prevent from disturbing and be delivered to commercial power 10 sidesEffect. And, also can, not with buck functionality and filter function dual-purpose coil and capacitor, make its tool separatelyThere is the combination of coil and capacitor and be connected in series.

Resonant circuit 540 has load coil 222 and resonating capacitor 541. Inverter 550 has1 switch element 551, controls the electric power of supplying with to resonant circuit 540. The 1st switch element 551 for example usesInsulated gate bipolar tran sistor (InsulatedGateBipolarTransistor:IGBT).

In addition, in toilet seat 200, be provided with output instruction judegment part 251, move/stop instruction unit 253,Detect thermistor (temperature sensor) 255 and the vibration control part 257 of toilet seat 200 temperature. Control part 410 send to output instruction judegment part 251 control signal of exporting instruction and step-down instruction. Output instruction is differentiatedPortion 251 transmits control signal to step-down control part 523 according to the control signal sending from control part 410. FallThe control signal that pressure-controlled portion 523 bases send from output instruction judegment part 251 is to the 2nd switch element 521On/off control. The 2nd switch element 521 is according to the control sending from step-down control part 523Signal and switch the whether rectification output to rectification part 510 and carry out step-down. Output instruction judegment part 251 canThe state that output instruction is differentiated sends to control part 410.

Move/stop instruction unit 253 according to the control signal sending from output instruction judegment part 251 and to shakingSwinging control part 257 transmits control signal. Vibration control part 257 is according to from moving/stop 253 of instruction unitsThe control signal of sending is controlled the on/off of the 1st switch element 551. Moving/stopping instructionIn portion 253, be connected with thermistor 255. Moving/stop instruction unit 253 can be according to by thermistor 255The temperature information of the toilet seat 200 detecting and control the 1st switch element 551 by vibration control part 257On/off. Thus, moving/stop instruction unit 253 can be to the heat time of toilet seat 200, heatingThe action of characteristic or high-frequency power supply circuit 500/stop controlling.

As mentioned above, control part 410 sends heating instruction to output instruction judegment part 251, by action/Stopping instruction unit 253 controls the on/off of the 1st switch element 551 with vibration control part 257.410 of control parts carry out the action instruction of the on/off of eddy-current heating, direct by vibration control part 257On/off to the 1st switch element 551 is controlled. The action of vibration control part 257 is as follows.

First, in the time that the 1st switch element 551 is controlled to on-state by vibration control part 257, by businessThe electric current that power supply 10 is supplied with is rectified 510 rectifications of portion, by filtering portion 530 carry out filtering and flow into induction addHeat coil 222. Now, the rectification of rectification part 510 output is because of the 2nd switch element 521 of step-down portion 520Switch control and suitably step-down.

Both can in the step-down portion 520 shown in Fig. 3, carry out step-down action by FEEDFORWARD CONTROL, also can beIn the 520a of step-down portion shown in Fig. 4, carry out step-down action by FEEDBACK CONTROL. In the step-down portion 5 shown in Fig. 320 while carrying out step-down by FEEDFORWARD CONTROL to the rectification output of rectification part 510, even for example high-frequency power supply circuit500 move and fall at the electric voltage exception of filter condenser 533 to imagine the mode of above large current flowingWhen low, also can carry out step-down control by the voltage of the input side of step-down portion 520. Thereby, can not enter and carryThe output of high step-down portion 520 and make the action of larger current flowing. Thereby, can further improve security.On the other hand, the 520a of step-down portion shown in Fig. 4 by FEEDBACK CONTROL to the rectification of rectification part 510 export intoWhen row step-down, even for example in the time of the voltage change of commercial power 10, also can suppress output variation andFurther realize stabilisation.

If electric current flows in load coil 222, in load coil 222, save bit by bit magnetic energy.Next, in the time that the 1st switch element 551 is controlled to off-state by vibration control part 257, can be by businessIndustry power supply 10 is supplied with electric current, on the other hand, saves bit by bit magnetic energy in load coil 222 as electrostatic energyMeasure and move to resonating capacitor 541. Afterwards, energy again turns back to respond to from resonating capacitor 541 and addsHeat coil 222 and resonating.

In the way of this resonance action, when vibration control part 257 is controlled to the 1st switch element 551 againWhen on-state, magnetic energy adds in load coil 222, repeatedly carry out aforesaid action and continue intoRow resonance.

Like this, by on-state and the off-state to the 1st switch element 551 by vibration control part 257Carry out switching controls, thereby resonate in load coil 222 and resonating capacitor 541, produceHigh frequency electric. High frequency electric is supplied to load coil 222. Load coil 222 is by being supplied toHigh frequency electric produces high frequency magnetic field. Because this high frequency magnetic field produces eddy current in electric conductor 231, electric conductor 231 heatings. By above action, control part 410 can carry out to improve continuously the seated surface of toilet seat 200The mode of temperature is carried out the Fast Heating pattern of eddy-current heating. For example,, when the detecting sensor 402 of entering the room detectsWhile entering the room to user, control part 410 can be controlled to the energising of load coil 222 and promptly addHot toilet seat 200. Thereby, can realize user and in the time being seated at toilet seat 200, not feel ice-cold proper temperature.

Next, while sitting on toilet seat 200 after user is seated at toilet seat 200, control part 410 sends the instruction of Heat preservation and the 1st switch element 551 is carried out on/off control, by toilet seat 200Seated surface temperature remain in set point of temperature. Now, if vibration control part 257 is simply to the 1stSwitch element 551 carries out on/off control, likely on the 1st switch element 551, produces excessiveSwitching loss. And, likely because causing the 1st switch element 551, switching loss damages.

Next, produce when the seated surface of toilet seat 200 being incubated by eddy-current heating with reference to accompanying drawingProblem and the action of the related closet seat warming device 100 of present embodiment describe.

In addition, Fig. 6 be Fast Heating pattern for the related closet seat warming device of present embodiment is described andThe time diagram of Heat preservation pattern.

In addition, Fig. 7 is small heating mode for the related closet seat warming device of present embodiment is describedTime diagram.

As shown in Fig. 5 (a), when the 1st switch element 551 is controlled to on-state by vibration control part 257Time, mobile coil current I in load coil 222_LIncrease (moment t101). Thus, in senseAnswer in heater coil 222 and save bit by bit magnetic energy. Next, when vibration control part 257 is by the 1st switch element 551While being controlled to off-state, save bit by bit magnetic energy in load coil 222 as electrostatic energy and to altogetherThe capacitor 541 that shakes moves (moment t102). Thereby, resonance voltage V_CEIncrease. In addition, resonance voltage V_CEThe voltage that acts on the 1st switch element 551 two ends.

Next, as coil current I_LBecome zero and start during to reverse flow resonance voltage V_CEStart to subtractLittle (moment t103). , resonating capacitor 541 starts electric discharge. And, although resonance voltage V_CEWill be withThe input voltage (with reference to the dotted line shown in Fig. 5 (a)) of resonant circuit 540 is for benchmark vibrates, still, therefore roughly protect because being built in free-wheel diode 552 grades in switch element 551 by clamper due to for exampleHolding is zero (moment t104). In addition, owing to producing eddy current and lead in above action in electric conductor 231Electricity body 231 generates heat, and therefore resonance energy is tending towards decay.

On the other hand, in the time that coil current IL starts to increase again, vibration control part 257 is by the 1st switch unitPart 551 is controlled to on-state (moment t105). Thus, in load coil 222, again save bit by bit energyAmount.

Like this, electric conductor 231 by load coil (L) 222, resonating capacitor (C) 541 with leadThe LCR resonance of electricity body (R) 231 is moved and generates heat. Thereby, for the seated surface of toilet seat 200 is being carried outWhen insulation, suppress eddy-current heating output, need to suppress the energy of resonance action. The energy of resonance action is by vibratingAmplitude (current amplitude) determines with frequency. Thereby control part 410 passes through the 1st switch element 551Switch control as reducing vibration amplitude or reduction frequency the prolongation cycle, thus sense can be suppressedShould add thermal output.

But, if consider that the detecting sensor 402 of for example entering the room detects that user enters the room, thereby controlPortion 410 controls to load coil 222 and switches on and promptly heat toilet seat 200, preferred Fast Heating mouldEddy-current heating under formula is output as for example more than approximately 1000 watts. On the other hand, if considered seated surfaceTemperature remain in user does not feel the set point of temperature ice-cold in the time being seated at toilet seat 200,Eddy-current heating under Heat preservation pattern is output as for example approximately 50 watts of left and right. , Fast Heating pattern withBetween Heat preservation pattern, there is the poor of larger eddy-current heating output.

In addition, carrying out when eddy-current heating, exist by load coil 222 and resonating capacitor 541The resonant frequency that combination determines. Generally speaking, carry out the 1st switch element 55 with near frequency resonant frequency1 switch control. Thereby, if carry out the 1st switch unit in order to adjust eddy-current heating output with optional frequencyThe switch control of part 551, can depart from resonance action. Thereby, if logical overfrequency Tone is whole to more aforesaidThe difference of large eddy-current heating output is controlled, and likely departs from resonance action.

More specifically describe, under Heat preservation pattern, make frequency in order to suppress eddy-current heating outputLower than Fast Heating pattern, must extend the 1st switch element 551 the on-state time (for the ease ofIllustrate, hereinafter referred to as " turn-on time "). If extend the turn-on time of the 1st switch element 551, lineLoop current I_LBecome larger. This involves increase vibration amplitude. Thereby, can not get suppressing eddy-current heating outputEffect. That is, just reduce frequency and can not reduce eddy-current heating output, need to be by load coil 222, resonating capacitor 541 is adjusted into corresponding to low-frequency value.

On the other hand, in order to suppress eddy-current heating output under Heat preservation pattern, consider vibration amplitudeBe reduced to and be less than Fast Heating pattern. As shown in Fig. 5 (b) and Fig. 5 (c), if make the 1st switch elementBe shorter than Fast Heating pattern 551 turn-on time, can under Heat preservation pattern, vibration amplitude be less than soonSpeed heating mode. But, as shown in Fig. 5 (c), if make the turn-on time of the 1st switch element 551 shortIn Fast Heating pattern, the switching loss on the 1st switch element 551 likely becomes problem.

In the circuit of induction heating mode, one of reason of utilizing aforesaid resonance action is, in order to doBecome the moment of 0V (no-voltage) for the voltage of the 1st switch element 551, vibration control part 257 makes the 1stSwitch element 551 suppresses switching loss for on-state. Resonance shown in Fig. 5 (a) and Fig. 5 (b) is movingResonance amplitude in work is greater than the resonance amplitude in the resonance action shown in Fig. 5 (c). And, at Fig. 5 (a)And in resonance shown in Fig. 5 (b) action, there is the voltage that acts on the 1st switch element 551 electricity that resonatesPress V_CEBecome the moment (moment t104～t106, t114～t116) of no-voltage. Thereby, at Fig. 5 (a)And in resonance shown in Fig. 5 (b) action, by resonance voltage V_CEControl part 410 while becoming no-voltageMaking the 1st switch element 551 is on-state (carrying out what is called " ZVT action "), thereby can press downSwitching loss processed.

On the other hand, the resonance amplitude in the action of the resonance shown in Fig. 5 (c) is less than Fig. 5 (a) and Fig. 5 (b)Resonance amplitude in shown resonance action. In addition, become resonance voltage V_CEThe resonance electricity of vibration benchmarkResonant circuit 540 in resonance action shown in the input voltage on road 540 and Fig. 5 (a) and Fig. 5 (b)Input voltage is identical. Thereby, even vibrate taking the input voltage of resonant circuit 540 as benchmark, resonanceVoltage V_CECan not become no-voltage yet. Thereby, in the eddy-current heating action of carrying out low outputAlso suppress the decay of resonance energy and proceed resonance action, vibration control part 257 need to be at resonance voltage V_CEMaking the 1st switch element 551 when being not no-voltage is on-state. , being total to shown in Fig. 5 (c)During vibration is done, control part 410 can not carry out ZVT action. Like this, exist switching loss increase andThe possibility that the 1st switch element 551 damages or burns out.

Damage for fear of switch element 551, also studied following methods, by control part 410 off and onCarry out eddy-current heating action, thereby suppress fifty-fifty eddy-current heating output, by the seated surface temperature of toilet seat 200Remain in set point of temperature. But likely user can feel that eddy-current heating is moving repeatedly by skinDo connecting and disconnecting and feel bad.

To this, the control part 410 of present embodiment sends to output instruction judegment part 251 finger of carrying out step-downShow, its result, step-down control part 523 carries out the switch control of the 2nd switch element 521, fully to wholeStep-down is carried out in the rectification output of stream portion 510. , control part 410 use step-down portions 520 control fast and addIt is poor that larger eddy-current heating between heat pattern and Heat preservation pattern is exported.

Be arranged on toilet seat 200 when interior at the high-frequency power supply circuit 500 shown in Fig. 3, step-down portion 520 can lead toThe voltage of the rectification output of over commutation portion 510 is that the input voltage of step-down portion 520 decides the 2nd switch element 5The dutycycle of 21 turn-on time. In addition, the input voltage of step-down portion 520 is higher, and step-down portion 520 willThe dutycycle of the turn-on time of the 2nd switch element 521 determines as less dutycycle. Like this, step-down controlPortion 523 can determine dutycycle according to the input voltage of step-down portion 520, carries out the splenium 520 of not accepting a surrenderThe FEEDFORWARD CONTROL of output voltage impact. Accordingly, though high-frequency power supply circuit 500 for example with large current flowingMode is moved, and also can cut off at the input side of step-down portion 520. For example, can avoid occurring, there is certain abnormal operation and eddy-current heating output increase, due to the input to inverter 550 in following situationVoltage is that the output voltage of step-down portion 520 reduces, thereby step-down portion 520 determines larger dutycycle, inductionAdding thermal output further increases. Thereby, can further improve security.

As previously mentioned, the eddy-current heating under Fast Heating pattern is output as for example approximately 1000 watts of left and right, anotherAspect, the eddy-current heating under Heat preservation pattern is output as for example approximately 50 watts of left and right. , control part 410Step-down portion 520 is controlled, the electric power consumption under Heat preservation pattern is become under Fast Heating patternApproximately 1/20～1/10 times of left and right of electric power consumption, falls the rectification output of rectification part 510 fullyPress. Thus, can make the temperature stabilization of the toilet seat 200 under Heat preservation pattern, can positively press down in additionStray field processed. And, detect power consumption by electric power consumption test section 430 (with reference to Fig. 3 and Fig. 4)Amount.

First,, as shown in Fig. 6 (a), control part 410 is in the time of the 1st Fast Heating pattern of execution, by the 2ndSwitch element 521 is controlled to continuous on-state. Thus, under the 1st Fast Heating pattern, rectification part 510 rectification output is not supplied to inverter 550 by 520 step-downs of step-down portion. , the commercial electrical after rectificationSource 10 becomes direct-connected state with load coil 222. Control part 410 can make toilet seat 200Seated surface temperature rises and promptly heating continuously. The 1st switch element 551, coil current I_LAnd resonance electricityPress V_CEAction or state and above about the 1st switch element 551, coil current I Fig. 5 (a) Suo Shu_LAnd resonance voltage V_CEAction or state identical.

As shown in Fig. 6 (b), control part 410, in the time of the 2nd Fast Heating pattern of execution, carries out the 2nd switchThe switch control of element 521. Thus, under the 2nd Fast Heating pattern, the rectification output of rectification part 510Be supplied to inverter 550 by 520 step-downs of step-down portion. Even under the 2nd Fast Heating pattern, control part410 also can make the seated surface temperature of toilet seat 200 rise continuously and promptly heating.

Because the rectification of rectification part 510 is exported by 520 step-downs of step-down portion, therefore coil current I_LBe less than the 1stCoil current I under Fast Heating pattern_L. , the coil current I under the 2nd Fast Heating pattern_LVibrationAmplitude is less than the coil current I under the 1st Fast Heating pattern_LVibration amplitude. Thereby, the 2nd Fast HeatingResonance voltage V under pattern_CEResonance amplitude become the resonance voltage V being less than under the 1st Fast Heating pattern_C _EResonance amplitude. In addition, the resonance energy under the 2nd Fast Heating pattern becomes and is less than the 1st Fast Heating mouldResonance energy under formula.

Control part 410 does not change resonance action (turn-on time or the frequency etc. of the 1st switch element), by byStep-down portion 520 carries out step-down to the rectification output of rectification part 510, just can with the 1st Fast Heating pattern underEddy-current heating output compare the eddy-current heating output more suppressing under the 2nd Fast Heating pattern. Thereby, controlPortion 410 processed can be by step-down portion 520 the seated surface temperature to the toilet seat 200 under Fast Heating patternThe rate of climb is controlled, and suppresses overshoot.

Because the rectification of rectification part 510 is exported by 520 step-downs of step-down portion, therefore become resonance voltage V_CEThe input voltage of resonant circuit 540 of vibration benchmark be less than the resonant circuit 54 under the 1st Fast Heating pattern0 input voltage. Thereby, even if the resonance amplitude under the 2nd Fast Heating pattern is less than the 1st Fast Heating mould, also there is resonance voltage V in the resonance amplitude under formula_CEBecome the moment (moment t214～t216) of no-voltage.Thereby control part 410 can suppress by carry out ZVT action under the 2nd Fast Heating patternSwitching loss.

As shown in Fig. 6 (c), control part 410 is in the time carrying out Heat preservation mould, with execution the 2nd Fast HeatingIdentical when pattern, send the instruction of the switch control of the 2nd switch element 521. And control part 410 is logicalCross step-down portion 520 the rectification output of rectification part 510 is carried out to whole than under the 1st and the 2nd Fast Heating patternStream is exported step-down more fully. , the rectification of rectification part 510 output and the 1st and the 2nd Fast Heating mouldRectification output under formula is compared and is supplied to inverter 550 after step-down portion 520 step-down more fully. Control part410 can remain on the seated surface temperature of toilet seat 200 in set point of temperature.

Because the rectification of rectification part 510 is exported by 520 abundant step-downs of step-down portion, therefore coil current I_LLittleCoil current I under the 1st and the 2nd Fast Heating pattern_L. , the coil current I under Heat preservation pattern_LVibration amplitude be less than the coil current I under the 1st and the 2nd Fast Heating pattern_LVibration amplitude. Thereby,Resonance voltage V under Heat preservation pattern_CEResonance amplitude become and be less than the 1st and the 2nd Fast Heating patternUnder resonance voltage V_CEResonance amplitude. In addition, the resonance energy under Heat preservation pattern becomes and is less than the 1stAnd the 2nd resonance energy under Fast Heating pattern.

Control part 410 does not change resonance action, by the rectification output to rectification part 510 with step-down portion 520Fully carry out step-down just can more press down compared with eddy-current heating output under the 1st and the 2nd Fast Heating patternEddy-current heating output under Heat preservation pattern processed. Thereby, control part 410 can make electric power consumption lower thanElectric power consumption under the 1st and the 2nd Fast Heating pattern, remains on rule by the seated surface temperature of toilet seat 200In fixed temperature. In addition, the seated surface temperature that can suppress toilet seat 200 sharply rises, and suppresses to produce temperature notAll. Thereby the user that can suppress to be seated at toilet seat 200 feels bad.

Compared with the 1st and the 2nd Fast Heating pattern, vibration control part 257 does not need to change the 1st switch unitThe control cycle of the on/off of part 551. Vibration control part 257 is not subject to the sense of being indicated by control part 410The big or small impact of thermal output should be added, the action bar of the resonance action that is suitable for resonant circuit 540 can be determinedThe cycle of part.

Because the rectification of rectification part 510 is exported by 520 abundant step-downs of step-down portion, therefore become resonance voltage V_CEThe input voltage of resonant circuit 540 of vibration benchmark lower than being total under the 1st and the 2nd Fast Heating patternThe input voltage of circuit 540 shakes. Thereby, even if the resonance amplitude under Heat preservation pattern is less than the 1st and the 2nd, also there is resonance voltage V in the resonance amplitude under Fast Heating pattern_CEBecome moment (the moment t22 of no-voltage4～t226). Thereby control part 410 can be by carrying out ZVT action under Heat preservation patternSuppress switching loss.

And as shown in Figure 7, control part 410 is by using in the same manner step-down portion 520 with Heat preservation patternStep-down is carried out in rectification output to rectification part 510 fully, while making the connection of the 1st switch element 551 simultaneouslyBetween be shorter than the 1st, the 2nd Fast Heating pattern and Heat preservation pattern, thereby can carry out small heating mode.Thus, can obtain the aforesaid effect about Heat preservation pattern, can further realize energy-saving simultaneously.

In addition, because the rectification of rectification part 510 is exported by 520 abundant step-downs of step-down portion, therefore become altogetherVoltage V shakes_CEThe input voltage of resonant circuit 540 of vibration benchmark lower than the 1st and the 2nd Fast Heating mouldThe input voltage of the resonant circuit 540 under formula. Thereby, even if the turn-on time of the 1st switch element 551 is shortTurn-on time under the 1st, the 2nd Fast Heating pattern and Heat preservation pattern, also there is resonance voltage V_CEBecome the moment (moment t234～t236) of no-voltage. Thereby control part 410 can be by adding in insulationUnder heat pattern, carry out ZVT action and suppress switching loss.

The electricity of (after full-wave rectification) after the electric current of being supplied with by commercial power 10 is rectified 510 rectifications of portionSource voltage is as shown in Fig. 8 (a).

As shown in Fig. 8 (b), step-down control part 523 generates by triangular wave transformation component 525 (with reference to Fig. 3)There is the triangular wave of the amplitude identical with the supply voltage shown in Fig. 8 (a).

Next, as shown in Fig. 8 (c), the voltage by comparator 526 to generated triangular wave and ruleFixed voltage compares, and determines the dutycycle of the turn-on time of the 2nd switch element 521 of step-down portion 520.Like this, as shown in Fig. 8 (d), the output voltage of restriction step-down portion 520 is the input electricity of resonant circuit 540Press.

Thus, as above about as shown in the content as described in Fig. 6 (c), the coil current under Heat preservation patternI_LBecome the coil current I being less than under the 1st and the 2nd Fast Heating pattern_L. , the line under Heat preservation patternLoop current I_LVibration amplitude be less than the coil current I under the 1st and the 2nd Fast Heating pattern_LVibration amplitude.Thereby, can suppress the stray field that produced by load coil 222, suppress being seated at toilet seat 200The impact that user produces.

And, carry out off and on eddy-current heating action and reducing average output and as Heat preservation patternIn method, owing to carrying out the coil current I of moment of eddy-current heating_LVibration amplitude become large, therefore worryThe user who is seated at toilet seat 200 is exerted an influence.

Next, the concrete example of the action to the related closet seat warming device 100 of present embodiment with reference to accompanying drawingDescribe.

First, before the detecting sensor 402 of entering the room detects that user enters the room, the seated surface of toilet seat 200Temperature is room temperature, do not remain in the imperceptible set point of temperature ice-cold of user (moment t301 withBefore). Next,, in the time that the detecting sensor 402 of entering the room detects that user enters the room, control part 410 is by the 2ndSwitch element 521 is controlled to continuous on-state, sends the beginning of the switch control of the 1st switch element 551Indicate and execution Fast Heating pattern (moment t301). Thus, the seated surface temperature of toilet seat 200 goes up continuouslyRise and be promptly heated.

Next, when the seated surface temperature of toilet seat 200 becomes proper temperature (target temperature or design temperature etc.)Time, control part 410 carries out the switch control of the 2nd switch element 521, with the rectification under Fast Heating patternOutput compares the rectification output of rectification part 510 and more carries out step-down and carry out Heat preservation pattern (moment t302). Thus, the seated surface of toilet seat 200 is maintained at the imperceptible proper temperature ice-cold as userBe in set point of temperature. In other words, add heat and toilet seat 200 with what the seated surface of toilet seat 200 was incubatedHeat dissipation capacity in thermally equilibrated temperature in stable.

Next, if user manually or by the operation of not shown remote controller etc. opens toilet cover 300,Toilet cover opening _ closing detecting sensor 406 detects that toilet cover 300 starts to open (moment t303), detects toilet cover300 are in the intermediateness (moment t303～t304) of closed condition and open mode. Next, toilet cover is openedClose the state (moment t304) that detecting sensor 406 detects that toilet cover 300 is opened. And, can be also to work asThe detecting sensor of entering the room 402 detects when user enters the room, and control part 410 is by not shown toilet cover opening _ closingDrive division etc. and carry out automatically open toilet cover 300 control.

Next,, in the time that user is seated at toilet seat 200, the detecting sensor of taking one's seat 404 detects userBe seated at toilet seat 200 (moment t305). And in the time that user disseats from toilet seat 200, taking one's seat to detect passesSensor 404 detects that user is not seated at toilet seat 200 (moment t306).

Next, if user manually or by the operation of not shown remote controller etc. closes toilet cover 300,Toilet cover opening _ closing detecting sensor 406 detects that toilet cover 300 starts to close (moment t307), detects toilet cover300 are in the intermediateness (moment t307～t308) of open mode and closed condition. Next, toilet cover is openedClose the state (moment t308) that detecting sensor 406 detects that toilet cover 300 is closed. And, can be also to work asThe detecting sensor of entering the room 402 detects when user goes out chamber, and control part 410 is by not shown toilet cover opening _ closingDrive division etc. and carry out and automatically close the control (after moment t309) of toilet cover 300.

Next,, in the time that the detecting sensor 402 of entering the room detects that user goes out chamber, control part 410 stops the 2ndThe switch control of switch element 521, send the 1st switch element 551 switch control stopping instruction and stopOnly Heat preservation pattern (moment t309). , control part 410 stops toilet seat 200 to heat. Thereby, justThe seated surface temperature of seat 200 reduces (after moment t309) gradually.

According to this concrete example, in the time that the detecting sensor 402 of entering the room detects that user enters the room, control part 410Can carry out Fast Heating pattern, promptly heat the seated surface of toilet seat 200 by eddy-current heating. Thus,In the time that not using toilet seat 200, user do not need toilet seat 200 to be incubated disappearing can suppress standby timePower consumption power, realizes energy-saving. In addition, in the time that the seated surface temperature of toilet seat 200 becomes proper temperature, controlPortion 410 processed carries out Heat preservation pattern, can the seated surface temperature of toilet seat 200 be kept by eddy-current heatingIn set point of temperature. Thus, do not need the heating unit for Fast Heating and adding for Heat preservationHot cell arranges as different system, can by more simple structure realize Fast Heating withHeat preservation.

The detecting sensor of entering the room 402 detect the action of user before entering the room with above about described in Fig. 9Action identical (before moment t311) before moment t301 in concrete example.

Next,, in the time that the detecting sensor 402 of entering the room detects that user enters the room, control part 410 is by the 2ndSwitch element 521 is controlled to continuous on-state, sends the beginning of the switch control of the 1st switch element 551Indicate and the 1st Fast Heating pattern of execution (moment t311). Thus, the seated surface temperature of toilet seat 200 is continuousGround rises and is promptly heated.

Next, when the seated surface temperature rise of toilet seat 200 is to lower than proper temperature for example when the temperature of 3 DEG C,Control part 410 carries out the switch control of the 2nd switch element 521, and the rectification output of rectification part 510 is carried outStep-down and carry out the 2nd Fast Heating pattern (moment t312). Thus, the induction under the 2nd Fast Heating patternAdd thermal output more suppressed compared with eddy-current heating output under the 1st Fast Heating pattern. Thereby, as Figure 10Shown in, the climbing (rate of climb) of the seated surface temperature of the toilet seat 200 under the 2nd Fast Heating pattern becomesMust be lower than the climbing (moment t312～t31 of the seated surface temperature of the toilet seat 200 under the 1st Fast Heating pattern3)。

Under the 2nd Fast Heating pattern, control part 410 also can make the seated surface temperature of toilet seat 200 continuousGround rises and promptly heats. And control part 410 switches to the 2nd from the 1st Fast Heating patternThe moment of Fast Heating pattern is not limited to the seated surface temperature rise of toilet seat 200 extremely lower than 3 DEG C of proper temperaturesMoment of temperature. About the temperature difference (being 3 DEG C in this concrete example) of switching instant that becomes heating mode,Can suitably change.

Next,, in the time that the seated surface temperature of toilet seat 200 becomes proper temperature, control part 410 changes the 2ndThe condition of the switch control of switch element 521, particularly, while reducing the connection of the 2nd switch element 521Between dutycycle, compare the whole of rectification part 510 with the rectification output under the 1st and the 2nd Fast Heating patternStream output is more carried out step-down and is carried out Heat preservation pattern (moment t313). Thus, taking one's seat of toilet seat 200It is in set point of temperature that face is maintained at as the imperceptible proper temperature ice-cold of user. Next, timeCarve the action of t314～t320 with moving about the moment t303～t309 in the concrete example described in Fig. 9 aboveDo identical.

According to this concrete example, Fast Heating pattern has the 1st Fast Heating pattern and the 2nd Fast Heating pattern.Under the 1st Fast Heating pattern, the 2nd switch element 521 is controlled to continuous on-state by control part 410,The rectification output of rectification part 510 is not carried out step-down and is supplied to inverter 550. On the other hand, fast the 2ndUnder speed heating mode, control part 410 carries out switch control to the 2nd switch element 521, to rectification part 510Rectification output carry out step-down and be supplied to inverter 550. Thus, control part 410 can be by step-down portion 5The rate of climb of the seated surface temperature of the toilet seat 200 under 20 pairs of Fast Heating patterns is controlled, and can suppressOvershoot.

In following concrete example, in the time that rated condition is set up, carry out Fast Heating pattern, in rated conditionWhile being false, carry out Heat preservation pattern. , the run time of Fast Heating pattern is limited at regulation barWhen part is set up.

In this concrete example, in the time that not being seated at toilet seat 200, user carries out Fast Heating pattern, usingWhen being seated at toilet seat 200, person carries out Heat preservation pattern. ,, in the taking one's seat of user, suppress to add fastThe execution of heat pattern. The action of this concrete example is in the time that closet seat warming device 100 does not have toilet cover 300, does not establishWhile being equipped with toilet cover opening _ closing detecting sensor 406, toilet cover opening _ closing detecting sensor 406 breaks down and by toilet cover 3Effectively one of the action such as when 00 state recognition of opening becomes closed condition.

The detecting sensor of entering the room 402 detect the action of user before entering the room with above about described in Fig. 9Action identical (before moment t321) before moment t301 in concrete example. Next, when the detection of entering the roomSensor 402 detects when user enters the room, and control part 410 is controlled to the 2nd switch element 521 continuouslyOn-state, sends the starting instruction of switch control of the 1st switch element 551 and carries out Fast Heating pattern(moment t321). Thus, the seated surface temperature of toilet seat 200 rises continuously and is promptly heated.

Next, before the seated surface temperature of toilet seat 200 becomes proper temperature, when the detecting sensor 4 of taking one's seat04 detects when user is seated at toilet seat 200, and control part 410 carries out opening of the 2nd switch element 521Close and control, the rectification output that compares rectification part 510 with the rectification output under Fast Heating pattern is carried out moreStep-down and carry out Heat preservation pattern (moment t322). And, carry out Heat preservation mould by control part 410Formula, thus the seated surface temperature of toilet seat 200 becomes proper temperature (moment t323).

Next, the action of moment t324～t325 is above about the moment t in the concrete example described in Fig. 9The action of 306～t309, identical with the action of moving except toilet cover opening _ closing detecting sensor 406.

According to this concrete example, even before the seated surface temperature of toilet seat 200 becomes proper temperature, when taking one's seatDetecting sensor 404 detects that user is seated at toilet seat 200, and control part 410 stops Fast Heating pattern,Carry out Heat preservation pattern. ,, in the time that user is seated at toilet seat 200, control part 410 stops carrying out fastSpeed heating mode. Thus, can further improve the security of the user to being seated at toilet seat 200.

The action of this concrete example is above about the action of the concrete example described in Figure 10 and above about Figure 11 instituteOne example of the combination action of the action of the concrete example of stating. The action of this concrete example is holding in Fast Heating patternEffectively one of the action such as when user will be seated at toilet seat 200 in row.

Whether the temperature that first, control part 410 judges toilet seat 200 is lower than the upper limit (step S101). For example logicalCross thermistor 255 (with reference to Fig. 3) etc. and detect the temperature of toilet seat 200. The temperature of toilet seat 200 lower thanUpper (step S101: be) in limited time, control part 410 is sentenced according to the detection signal of the detecting sensor 402 of entering the roomWhether disconnected user has entered toilet (step S103). On the other hand, be not less than in the temperature of toilet seat 200Upper (step S101: no (condition of high temperature)) in limited time, the 2nd switch element is controlled to disconnection by control part 410State (step S123), send the 1st switch element 551 switch motion stopping instruction and stop induction addingHeat (step S125).

In the time that user enters toilet (step S103: be), control part 410 judges the temperature of toilet seat 200Whether degree is proper temperature (step S105). On the other hand, (step S10 when user does not enter toilet3: no), control part 410 is carried out above about the action described in step S123, S125.

In the temperature of toilet seat 200 during lower than proper temperature (step S105: lower than proper temperature), control part 410 judge according to the detection signal of the detecting sensor 404 of taking one's seat whether user has been seated at toilet seat 200 (stepRapid S107). In the time that user is not seated at toilet seat 200 (step S107: no), control part 410 judges justThe temperature of seat 200 and poor (the step S109) of proper temperature. In the temperature of toilet seat 200 lower than from proper temperatureWhile deducting the temperature of 3 DEG C (step S109: toilet seat < proper temperature-3 DEG C), control part 410 is opened the 2ndClose element 521 and be controlled to continuous on-state (step S113). Next, control part 410 is set the 1st fastThe binding hours (step S117) of speed heating mode, sends the beginning of the switch motion of the 1st switch element 551Indicate and execution eddy-current heating (the 1st Fast Heating pattern) (step S121).

On the other hand, be lower than the temperature of proper temperature and in subtracting from proper temperature in the temperature of toilet seat 200While going the temperature of 3 DEG C above (step S109: proper temperature > toilet seat >=proper temperature-3 DEG C), control part 410 carry out the switch control of the 2nd switch element 521, and the rectification output of rectification part 510 is carried out to step-down (stepRapid S115). Next, control part 410 is set the 2nd quick according to the temperature of toilet seat 200 and heating modeThe heat time (step S119) of heating mode, send the 1st switch element 551 switch motion start refer toShow and carry out eddy-current heating (the 2nd Fast Heating pattern) (step S121).

In the time that the temperature of toilet seat 200 is proper temperature, (step S105: proper temperature) or user take one's seatIn the time of toilet seat 200 (step S107: be), control part 410 carries out the switch control of the 2nd switch element 521,The rectification output that compares rectification part 510 with the rectification output under the 1st and the 2nd Fast Heating pattern is more addedRow step-down (step S111). Next, control part 410 sends the switch motion of the 1st switch element 551Start instruction and carry out eddy-current heating (Heat preservation pattern) (step S121).

Be proper temperature when above (step S105: more than proper temperature (high a little)) in the temperature of toilet seat 200,Control part 410 is carried out above about the action described in step S123, S125.

According to this concrete example, control part 410 can be controlled under Fast Heating pattern by step-down portion 520The rate of rise in temperature of the seated surface of toilet seat 200 and suppress overshoot, can further improve being seated at simultaneouslyThe user's of toilet seat 200 security.

In addition, Figure 14 is the flow chart that represents the action of the related closet seat warming device of this concrete example.

In this concrete example, only detect in toilet cover opening _ closing detecting sensor 406 state that toilet cover 300 is closedShi Zhihang Fast Heating pattern, does not detect in toilet cover opening _ closing detecting sensor 406 shape that toilet cover 300 is closedWhen state, carry out Heat preservation pattern. ,, beyond the state of closing at toilet cover 300, do not carry out Fast Heating mouldFormula. The action of this concrete example is effectively moving when in the execution of Fast Heating pattern, toilet cover 300 is opened etc.One of do.

The detecting sensor of entering the room 402 detect the action of user before entering the room with above about described in Fig. 9Concrete example in moment t301 before action identical (moment t331 before). Next, when the inspection of entering the roomSurvey sensor 402 and detect when user enters the room, control part 410 is by the 2nd switch element 521 companies of being controlled toContinuous on-state, sends the starting instruction of switch control of the 1st switch element 551 and carries out Fast Heating mouldFormula (moment t331). Thus, the seated surface temperature of toilet seat 200 rises continuously and is promptly heated.

Next,, before the seated surface temperature of toilet seat 200 becomes proper temperature, when detecting, toilet cover opening _ closing passesSensor 406 detects when toilet cover 300 starts to open, and control part 410 carries out opening of the 2nd switch element 521Close and control, the rectification output that compares rectification part 510 with the rectification output under Fast Heating pattern is carried out moreStep-down and carry out Heat preservation pattern (moment t332). And, carry out Heat preservation mould by control part 410Formula, thus after toilet cover opening _ closing detecting sensor 406 detects the state that toilet cover 300 opens (moment t333), the seated surface temperature of toilet seat 200 becomes proper temperature (moment t334). Next, moment t335～t339 action is with identical about the action of the moment t305～t309 in the concrete example described in Fig. 9 above.

With reference to the flow chart shown in Figure 14, further the action of this concrete example is described.

First, the action of step S201～S207 with above about the step S in the concrete example described in Figure 12The action of 101～S107 is identical.

In the time that user is not seated at toilet seat 200 (step S207: no), control part 410 is according to toilet cover opening _ closingThe detection signal of detecting sensor 406 and judge the whether state (step S209) in closing of toilet cover 300.When state at toilet cover 300 in closing (step S209: be (determining)), control part 410 is opened the 2ndClose element 521 and be controlled to continuous on-state (step S213). Next, control part 410 is according to toilet seat 200 temperature and heating mode and set heat time (step S215) of Fast Heating pattern, send the 1stThe starting instruction of the switch motion of switch element 551 and carry out eddy-current heating (Fast Heating pattern) (step S221). , 410 of control parts are carried out Fast Heating pattern when the state in closing at toilet cover 300.

On the other hand, in the time that the temperature of toilet seat 200 is proper temperature (step S205: proper temperature) or makeNot (the step when state in closing of (step S207: be) or toilet cover 300 when user has been seated at toilet seat 200Rapid S209: no), control part 410 carries out the switch control of the 2nd switch element 521, with Fast Heating patternUnder the rectification output rectification output that compares rectification part 510 more carry out step-down (step S211). Next,Control part 410 sends the starting instruction of switch motion of the 1st switch element 551 and carries out eddy-current heating and (protectTemperature heating mode) (step S221).

Be proper temperature when above (step S205: more than proper temperature (high a little)) in the temperature of toilet seat 200,Control part 410 carry out with above about identical the moving of the step S123 in the concrete example described in Figure 12, S125Do.

According to this concrete example, in the time that toilet cover opening _ closing detecting sensor 406 detects that toilet cover 300 starts to open,Control part 410 stops Fast Heating pattern and carries out Heat preservation pattern. Thereby control part 410 will heatThe time that pattern switches to Heat preservation pattern from Fast Heating pattern is guaranteed to from toilet cover 300 and starts to openTill during the state in opening. Thereby, can improve user's to being seated at toilet seat 200Security.

In addition, Figure 16 is the flow chart that represents the action of the related closet seat warming device of this concrete example.

In this concrete example, only do not detect in toilet cover opening _ closing detecting sensor 406 shape that toilet cover 300 is openedWhen state, carry out Fast Heating pattern, detect in toilet cover opening _ closing detecting sensor 406 shape that toilet cover 300 is openedWhen state, carry out Heat preservation pattern. That is, even toilet cover 300 is opened in the execution of Fast Heating pattern,Become the state of opening completely at toilet cover 300 till, also carry out Fast Heating pattern.

The detecting sensor of entering the room 402 detect the action of user before entering the room with above about described in Fig. 9Concrete example in moment t301 before action identical (moment t341 before). Next, when the inspection of entering the roomSurvey sensor 402 and detect when user enters the room, control part 410 is by the 2nd switch element 521 companies of being controlled toContinuous on-state, sends the starting instruction of switch control of the 1st switch element 551 and carries out Fast Heating mouldFormula (moment t341). Thus, the seated surface temperature of toilet seat 200 rises continuously and is promptly heated.

Next, before the seated surface temperature of toilet seat 200 becomes proper temperature, even if toilet cover opening _ closing detectsSensor 406 detects that toilet cover 300 has started to open, and control part 410 also continues to carry out Fast Heating pattern(moment t342). And, in the time that toilet cover opening _ closing detecting sensor 406 detects the state that toilet cover 300 opens,Control part 410 carries out the switch control of the 2nd switch element 521, with the rectification output under Fast Heating patternThe rectification output that compares rectification part 510 is more carried out step-down and is carried out Heat preservation pattern (moment t343).Carry out Heat preservation pattern by control part 410, thereby the seated surface temperature of toilet seat 200 becomes proper temperature(moment t334). Next, the action of moment t345～t349 with above about the concrete example described in Fig. 9In the action of moment t305～t309 identical.

Further the action of this concrete example is described with reference to the flow chart shown in Figure 16.

First, the action of step S301～S307 with above about the step S in the concrete example described in Figure 12The action of 101～S107 is identical.

In the time that user is not seated at toilet seat 200 (step S307: no), control part 410 is according to toilet cover opening _ closingThe detection signal of detecting sensor 406 and judge the whether state (step S309) in opening of toilet cover 300.At not (step S309: no) when the state in opening of toilet cover 300, control part 410 is by the 2nd switch element521 are controlled to continuous on-state (step S313). Next, control part 410 is according to the temperature of toilet seat 200Degree and heating mode and set heat time (step S315) of Fast Heating pattern, send the 1st switch element551 switch motion starting instruction and carry out eddy-current heating (Fast Heating pattern) (step S321). ,As long as the not state in opening completely of toilet cover 300, control part 410 is carried out Fast Heating pattern.

On the other hand, in the time that the temperature of toilet seat 200 is proper temperature (step S305: proper temperature) or make(step when state in opening of (step S307: be) or toilet cover 300 when user has been seated at toilet seat 200Rapid S309: be (determining)), control part 410 carries out the switch control of the 2nd switch element 521, and fastRectification output under heating mode compares the rectification output of rectification part 510 and more carries out step-down (step S311).Next, control part 410 sends the starting instruction of switch motion of the 1st switch element and carries out eddy-current heating(Heat preservation pattern) (step S321).

Be proper temperature when above (step S305: more than proper temperature (high a little)) in the temperature of toilet seat 200,Control part 410 carry out with above about identical the moving of the step S123 in the concrete example described in Figure 12, S125Do.

According to this concrete example, even toilet cover 300 is opened in the execution of Fast Heating pattern, becoming justTill lid 300 states of opening completely, control part 410 is also carried out Fast Heating pattern. Thereby, from toilet cover 300 start to be opened to the state in opening completely during, control part 410 can continue to carry out Fast Heating mouldFormula and make the temperature of toilet seat 200 approach proper temperature. Thus, can more positively suppress user justSeat feels ice-cold in the time of toilet seat 200.

In this concrete example, the detected temperatures that is thermistor 255 when the temperature of toilet seat 200 becomes higher than ruleDefinite value or while becoming setting, the 2nd switch element is controlled to off-state by control part 410, sends the 1stThe stopping instruction of the switch motion of switch element 551 and stop eddy-current heating. The action of this concrete example is in senseEffectively one of the action such as should add thermal output and for the moment become excessive time or while there is the action beyond imagination.

The detecting sensor of entering the room 402 detect the action of user before entering the room with above about described in Fig. 9Concrete example in moment t301 before action identical (moment t351 before). Next, when the inspection of entering the roomSurvey sensor 402 and detect when user enters the room, control part 410 is by the 2nd switch element 521 companies of being controlled toContinuous on-state, sends the starting instruction of switch control of the 1st switch element 551 and carries out Fast Heating mouldFormula (moment t351). Thus, the seated surface temperature of toilet seat 200 rises continuously and is promptly heated.

Next the detected temperatures that is, thermistor 255 when the temperature of toilet seat 200 becomes ceiling temperature (ruleDefinite value) time, the 2nd switch element 521 is controlled to off-state by control part 410, sends the 1st switch unitThe stopping instruction of the switch motion of part 551 and stop eddy-current heating (moment t352). Thus, toilet seat 200Seated surface temperature little by little reduces. Next, toilet cover opening _ closing detecting sensor 406 detects that toilet cover 300 opensBegin open (moment t353), detect toilet cover 300 be in the intermediateness of closed condition and open mode (timeCarve t353～t354).

In the time that the seated surface temperature of toilet seat 200 becomes proper temperature, control part 410 carries out the 2nd switch element 521 switch control, the rectification that compares rectification part 510 with the rectification output under Fast Heating pattern is exported moreAdd and carry out step-down and carry out Heat preservation pattern (moment t355). Thus, the seated surface of toilet seat 200 is keptBeing in set point of temperature as the imperceptible proper temperature ice-cold of user. Next, moment t356～t360 action is with identical about the action of the moment t305～t309 in the concrete example described in Fig. 9 above.

According to this concrete example, the 2nd switch element has the function as safety device. , control part 410The 2nd switch element can be controlled to off-state, can cut off high-frequency power supply circuit 500. Thereby, canFurther improve security.

For example, become and cannot stop the 1st switch unit even if certain fault occurs vibration control part 257The switch motion of part, also can prevent by stopping eddy-current heating action the temperature rise of toilet seat 200.

In addition, Figure 19 is the flow chart that represents the action of the related closet seat warming device of this concrete example.

The action of this concrete example is above about the action of the concrete example described in Figure 10 and above about Figure 13 instituteOne example of the combination action of the action of the concrete example of stating. In this concrete example, the state of closing at toilet cover 300Under state in the way of opening with the intermediateness of the state of opening, control part 410 is carried out more weakFast Heating pattern (the 2nd Fast Heating pattern). The action of this concrete example is holding in Fast Heating patternEffectively one of the action such as when toilet cover 300 is opened in row.

The detecting sensor of entering the room 402 detect the action of user before entering the room with above about described in Fig. 9Concrete example in moment t301 before action identical (moment t361 before). Next, when the inspection of entering the roomSurvey sensor 402 and detect when user enters the room, control part 410 is by the 2nd switch element 521 companies of being controlled toContinuous on-state, sends the starting instruction of switch control of the 1st switch element 551 and carries out the 1st and add fastHeat pattern (moment t361). Thus, the seated surface temperature of toilet seat 200 rises continuously and is promptly heated.

Next,, before the seated surface temperature of toilet seat 200 becomes proper temperature, when detecting, toilet cover opening _ closing passesSensor 406 detects when toilet cover 300 starts to open, and control part 410 carries out opening of the 2nd switch element 521Close and control, the rectification output of rectification part 510 is carried out step-down and carried out the 2nd Fast Heating pattern (moment t362). Thus, the induction under the output of the eddy-current heating under the 2nd Fast Heating pattern and the 1st Fast Heating patternAdding thermal output compares more suppressed. Thereby, as shown in figure 18, the toilet seat 200 under the 2nd Fast Heating patternThe climbing of seated surface temperature become the seated surface temperature lower than the toilet seat 200 under the 1st Fast Heating patternClimbing (moment t362～t363).

Next, in the time that toilet cover opening _ closing detecting sensor 406 detects the state that toilet cover 300 opens completely,Control part 410 changes the condition of the switch control of the 2nd switch element 521, particularly, reduces the 2nd and opensClose the dutycycle of the turn-on time of element 521, with the rectification output phase under the 1st and the 2nd Fast Heating patternThe rectification output of comparison rectification part 510 is more carried out step-down and is carried out Heat preservation pattern (moment t363). ByThis, the imperceptible ice-cold such proper temperature of seated surface insulation imaging user of toilet seat 200 specifiesIn temperature.

And, carry out Heat preservation pattern by control part 410, thereby examine in the detecting sensor 404 of taking one's seatMeasure user be seated at toilet seat 200 after (moment t364), the seated surface temperature of toilet seat 200 becomes suitablyTemperature (moment t365). Next, the action of moment t366～t369 with above about the tool described in Fig. 9The action of moment t306～t309 in style is identical.

Further the action of this concrete example is described with reference to the flow chart shown in Figure 19.

First, the action of step S401～S407 with above about the step S in the concrete example described in Figure 12The action of 101～S107 is identical.

In the time that user is not seated at toilet seat 200 (step S407: no), control part 410 is according to toilet cover opening _ closingThe detection signal of detecting sensor 406 and judge the whether state (step S409) in opening of toilet cover 300.At not (step S409: no) when the state in opening of toilet cover 300, control part 410 is examined according to toilet cover opening _ closingSurvey the detection signal of sensor 406 and judge the whether state (step S410) in closing of toilet cover 300. ?When the state of toilet cover 300 in closing (step S410: be (determining)), control part 410 is by the 2nd switchElement 521 is controlled to continuous on-state (step S413). Next, control part 410 is set the 1st quickThe binding hours (step S417) of heating mode, send the 1st switch element 551 switch motion start refer toShow and carry out eddy-current heating (the 1st Fast Heating pattern) (step S421).

On the other hand, at not (step S410: no) when the state in closing of toilet cover 300, control part 410Carry out the switch control of the 2nd switch element 521, the rectification output of rectification part 510 is carried out to step-down (step S415). Next, control part 410 is set the 2nd according to the temperature of toilet seat 200 and heating mode and is added fastThe heat time (step S419) of heat pattern, send the 1st switch element 551 switch motion start instructionAnd execution eddy-current heating (the 2nd Fast Heating pattern) (step S421).

On the other hand, in the time that the temperature of toilet seat 200 is proper temperature (step S405: proper temperature) or make(step when state in opening of (step S407: be) or toilet cover 300 when user has been seated at toilet seat 200Rapid S409: be (determining)), control part 410 carries out the switch control of the 2nd switch element 521, with the 1stAnd the 2nd rectification output under the Fast Heating pattern rectification output that compares rectification part 510 more carry out step-down(step S411). Next, control part 410 send the 1st switch element 551 switch motion start refer toShow and carry out eddy-current heating (Heat preservation pattern) (step S121).

Be proper temperature when above (step S405: more than proper temperature (high a little)) in the temperature of toilet seat 200,Control part 410 carry out with above about identical the moving of the step S123 in the concrete example described in Figure 12, S125Do.

According to this concrete example, in the execution of Fast Heating pattern, exist while opening the behavior of toilet cover 300,Toilet cover 300 open completely till during, control part 410 is carried out induction compared with the 1st Fast Heating patternAdd more repressed the 2nd Fast Heating pattern of thermal output. Thus, in can guaranteeing security,More positively suppress user and in the time being seated at toilet seat 200, feel ice-cold.

Above, embodiments of the present invention are illustrated. But the present invention is not limited to foregoing.As long as possess feature of the present invention, those skilled in the art are to the suitably design alteration in addition of above-mentioned embodimentAfter technology be also contained in scope of the present invention. For example, each key element that closet seat warming device 100 grades possessShape, size, material, configuration etc. or the set-up mode of load coil 222 and electric conductor 231 etc.Be not limited to illustrated content, can suitably change.

In addition, as long as technical feasible, each key element that can possess the respective embodiments described above combines,As long as comprise feature of the present invention, the technology that these are combined is also contained in scope of the present invention.

According to form of the present invention, provide one to realize Fast Heating and guarantor by more simple structureThe closet seat warming device of temperature heating.

Claims

1. a closet seat warming device, is characterized by, and possesses:

Resonant circuit, has load coil and resonating capacitor;

Electric conductor, is heated by the magnetic field induction that described load coil produced;

Toilet seat, is provided with described electric conductor;

Inverter, has the 1st switch element and controls the electric power of supplying with to described resonant circuit;

Rectification part, carries out rectification to the electric current of being supplied with by commercial power;

Step-down portion, has the 2nd switch element and the rectification output of described rectification part is carried out step-down and is supplied toDescribed inverter;

And control part, carry out Fast Heating pattern and Heat preservation pattern, under Fast Heating pattern to described contraryBecome that device is controlled and carry out eddy-current heating, Heat preservation mould in the mode of the temperature that improves continuously described toilet seatUnder formula, described the 2nd switch element is carried out to switch control and described rectification output is carried out step-down and is supplied to instituteState inverter, and carry out eddy-current heating in the mode that the temperature of described toilet seat is remained in set point of temperature,

Described Fast Heating pattern has:

The 1st Fast Heating pattern, described the 2nd switch element is controlled to continuous on-state by described control part,Described rectification output is not carried out step-down and is supplied to described inverter, to improve continuously the temperature of described toilet seatMode carry out eddy-current heating;

And the 2nd Fast Heating pattern, described control part carries out switch control to described the 2nd switch element, fromAnd described rectification output is carried out step-down and is supplied to described inverter, to improve continuously the temperature of described toilet seatMode carry out eddy-current heating.

2. closet seat warming device according to claim 1, is characterized by,

Described control part is as follows, carrying out when described Heat preservation pattern, by described step-down portion to described wholeStep-down is carried out in stream output, so that electric power consumption reduces compared with when carrying out described the 2nd Fast Heating pattern.

3. closet seat warming device according to claim 1, is characterized by,

Described control part is as follows, in the time that rated condition is set up, stops carrying out described Fast Heating pattern, in instituteWhen stating rated condition and being false, carry out described Heat preservation pattern.

4. closet seat warming device according to claim 3, is characterized by,

Also possess and detect the detecting sensor of taking one's seat that user takes one's seat to described toilet seat,

Described control part is as follows, in the time that the condition of taking one's seat described in the described detecting sensor of taking one's seat does not detect is set up,Carry out described Fast Heating pattern, the condition of taking one's seat described in not detecting in the described detecting sensor of can not take one's seatImmediately, carry out described Heat preservation pattern.

5. closet seat warming device according to claim 3, is characterized by,

Also possess: toilet cover, covers described toilet seat;

And toilet cover opening _ closing detecting sensor, detect the open and-shut mode of described toilet cover,

Described control part is as follows, the closed condition of described toilet cover detected in described toilet cover opening _ closing detecting sensorCondition set up time, carry out described Fast Heating pattern, institute detected in described toilet cover opening _ closing detecting sensorWhen the condition of stating the closed condition of toilet cover is false, carry out described Heat preservation pattern.

6. closet seat warming device according to claim 3, is characterized by,

Also possess: toilet cover, covers described toilet seat;

Described control part is as follows, the shape of opening of described toilet cover do not detected in described toilet cover opening _ closing detecting sensorWhen the condition of state is set up, carry out described Fast Heating pattern, do not detect in described toilet cover opening _ closing detecting sensorWhile being false to the condition of the open mode of described toilet cover, carry out described Heat preservation pattern.

7. closet seat warming device according to claim 1, is characterized by,

Described step-down portion determines the duty of the turn-on time of described the 2nd switch element according to described rectification outputRatio, the less described dutycycle of the higher decision of described rectification output.

8. closet seat warming device according to claim 1, is characterized by,

Also possess the temperature sensor of the temperature that detects described toilet seat,

Described control part is as follows, if the detected temperatures of described temperature sensor is higher than setting, described in generalThe 2nd switch element is controlled to off-state.