CN103313639A - Heated toilet seat apparatus - Google Patents

Heated toilet seat apparatus Download PDF

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Publication number
CN103313639A
CN103313639A CN201280005610XA CN201280005610A CN103313639A CN 103313639 A CN103313639 A CN 103313639A CN 201280005610X A CN201280005610X A CN 201280005610XA CN 201280005610 A CN201280005610 A CN 201280005610A CN 103313639 A CN103313639 A CN 103313639A
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CN
China
Prior art keywords
control part
seat
toilet seat
pattern
toilet
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Granted
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CN201280005610XA
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Chinese (zh)
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CN103313639B (en
Inventor
金子义行
村濑阳一
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Toto Ltd
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Toto Ltd
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    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47K—SANITARY EQUIPMENT NOT OTHERWISE PROVIDED FOR; TOILET ACCESSORIES
    • A47K13/00—Seats or covers for all kinds of closets
    • A47K13/24—Parts or details not covered in, or of interest apart from, groups A47K13/02 - A47K13/22, e.g. devices imparting a swinging or vibrating motion to the seats
    • A47K13/30—Seats having provisions for heating, deodorising or the like, e.g. ventilating, noise-damping or cleaning devices
    • A47K13/305—Seats with heating devices

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  • Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Toilet Supplies (AREA)

Abstract

Provided is a heated toilet seat apparatus characterized by being provided with: a resonant circuit having an induction heating coil and a resonant capacitor; a conductor that is induction-heated by a magnetic field generated by the induction heating coil; a toilet seat equipped with the conductor; an inverter which has a first switching element and regulates power supplied to the resonant circuit; a rectification unit which rectifies an electric current supplied from a commercial power source; a step down voltage unit having a second switching element which steps down the rectified output from the rectification unit and supplies the resultant rectified output to the inverter; and a control unit which activates a rapid heating mode where induction heating to continuously raise the temperature of the toilet seat is carried out by controlling the inverter, and a temperature maintenance heating mode where induction heating to maintain the temperature of the toilet seat within a specific temperature range is carried out by controlling the switching of the second switching element which steps down the rectified output and supplies the resultant rectified output to the inverter. Thus provided is a heated toilet seat apparatus capable of rapid heating and temperature maintenance heating with a simpler structure.

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 the closet.
Background technology
Generally speaking, in the closet seat warming device of majority, in the inside of toilet seat such as be provided with heater (heater) etc. as electric heating body.When in the heater during galvanization, the surface temperature of toilet seat rises because of the heat transmission of the Joule heat that produces in heater.For example when toilet seat is formed by resin, because the thermal resistance of resin is larger, so the temperature on toilet seat surface will rise to target temperature, then might need tens of seconds to several minutes time.Thereby, in order to make the user imperceptible ice-cold when being seated at toilet seat, to the heater energising preheating is carried out on the surface of toilet seat even when the user is not seated at toilet seat, also be necessary.Thereby the power consumption when suppressing standby also realizes the leeway that this aspect of energy-saving is improved.
To this, there is a kind of toilet seat heating installation (patent documentation 1) that possesses heater and electromagnetic induction heating coil.In the toilet seat heating installation that patent documentation 1 is put down in writing, when detecting when entering the toilet, electromagnetic induction heating coil is moved and the transient heating toilet seat.And, after being seated at toilet seat, proceed heating by heater.But, if be provided for the heating unit and the heating unit that is used for Heat preservation of transient heating or Fast Heating as different system, then exist structure to be tending towards complicated problem or the problem of cost raising.
Patent documentation 1: the JP 2008-18114 of Japan communique
Summary of the invention
The present invention is based on such problem understanding and carries out, and its purpose is to provide a kind of closet seat warming device that can realize by more simple structure Fast Heating and Heat preservation.
A kind of closet seat warming device is provided, it is characterized by, possess: resonant circuit has load coil and resonating capacitor; Electric conductor is by the magnetic field induction heating by described load coil produced; Toilet seat is provided with described electric conductor; Inverter (inverter) has the electric power that the 1st switch element and control are supplied with to described resonant circuit; Rectification part is carried out rectification to the electric current of being supplied with by commercial power; Step-down section has the 2nd switch element and the rectification of described rectification part output is carried out step-down and supplied to described inverter; And control part, carry out Fast Heating pattern and Heat preservation pattern, under the Fast Heating pattern described inverter controlled and carry out eddy-current heating in the mode of the temperature of the described toilet seat of continuous raising, under the Heat preservation pattern described the 2nd switch element is carried out switch control and described rectification output is carried out step-down and supplied to described inverter, and carry out eddy-current heating in the mode that the temperature with described toilet seat remains in the set point of temperature.
A kind of closet seat warming device that can realize by more simple structure Fast Heating and Heat preservation is provided.
Description of drawings
Fig. 1 is the three-dimensional pattern figure that illustration possesses the toilet-flushing apparatus of the related closet seat warming device of embodiments of the present invention.
Fig. 2 is the ideograph of the toilet seat of expression 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 for the Fast Heating pattern of the related closet seat warming device of explanation Comparative Examples and the time diagram of Heat preservation pattern.
Fig. 6 is for the Fast Heating pattern of the related closet seat warming device of explanation present embodiment and the time diagram of Heat preservation pattern.
Fig. 7 is the time diagram for the small heating mode of the related closet seat warming device of explanation present embodiment.
Fig. 8 is for the step-down action of the related closet seat warming device of explanation present embodiment and the curve map of stray field.
Fig. 9 is the time diagram of concrete example of the action of the related closet seat warming device of expression present embodiment.
Figure 10 is the time diagram of other concrete examples of the action of the related closet seat warming device of expression present embodiment.
Figure 11 is the time diagram of other other concrete examples of the action of the related closet seat warming device of expression present embodiment.
Figure 12 is the flow chart of other other concrete examples of the action of the related closet seat warming device of expression present embodiment.
Figure 13 is the time diagram of other other concrete examples of the action of the related closet seat warming device of expression present embodiment.
Figure 14 is the flow chart of the action of the related closet seat warming device of this concrete example of expression.
Figure 15 is the time diagram of other other concrete examples of the action of the related closet seat warming device of expression present embodiment.
Figure 16 is the flow chart of the action of the related closet seat warming device of this concrete example of expression.
Figure 17 is the time diagram of other other concrete examples of the action of the related closet seat warming device of expression present embodiment.
Figure 18 is the time diagram of other other concrete examples of the action of the related closet seat warming device of expression present embodiment.
Figure 19 is the flow chart of the action of the related closet seat warming device of this concrete example of expression.
Symbol description
The 10-commercial power; The 100-closet seat warming device; The 200-toilet seat; The 210-framework; Above the 210a-; The 222-load coil; The 231-electric conductor; 251-output indication judegment part; 253-moves/stops instruction unit; 255-thermistor (thermistor); The 257-control part that vibrates; The 300-toilet cover; The 400-shell; The 402-detecting sensor of entering the room; The 404-detecting sensor of taking one's seat; 406-toilet cover opening _ closing detecting sensor; The 410-control part; 421-eddy-current heating power-on switch; 430-electric power consumption test section; The 500-high-frequency power supply circuit; The 510-rectification part; 520,520a-step-down section; 521-the 2nd switch element; The 522-diode; 523-step-down control part; 525-triangular transformation section; 526-comparator (comparator); 530-filtering section; The 531-filter coil; The 533-filter condenser; The 540-resonant circuit; The 541-resonating capacitor; The 550-inverter; 551-the 1st switch element; The 552-free-wheel diode; The Western-style toilet of 800-.
The specific embodiment
According to a form of the present invention, a kind of closet seat warming device is provided, it is characterized by, possess: resonant circuit has load coil and resonating capacitor; Electric conductor is by the magnetic field induction heating by described load coil produced; Toilet seat is provided with described electric conductor; Inverter has the electric power that the 1st switch element and control are supplied with to described resonant circuit; Rectification part is carried out rectification to the electric current of being supplied with by commercial power; Step-down section has the 2nd switch element and the rectification of described rectification part output is carried out step-down and supplied to described inverter; And control part, carry out Fast Heating pattern and Heat preservation pattern, under the Fast Heating pattern described inverter controlled and carry out eddy-current heating in the mode of the temperature of the described toilet seat of continuous raising, under the Heat preservation pattern described the 2nd switch element is carried out switch control and described rectification output is carried out step-down and supplied to described inverter, and carry out eddy-current heating in the mode that the temperature with described toilet seat remains in the set point of temperature.
According to this closet seat warming device, control part carries out switch control to the 2nd switch element under the Heat preservation pattern, and rectification output is fully carried out step-down and supplied to inverter.Thus, control part does not change the resonance action of turn-on time of the 1st switch element etc., by with step-down section step-down fully being carried out in rectification output, export thereby the output of the eddy-current heating under the Heat preservation pattern can be suppressed to less than the eddy-current heating under the Fast Heating pattern.
Thereby control part can make electric power consumption under the Heat preservation pattern less than the electric power consumption under the Fast Heating pattern, and the temperature of toilet seat is remained in the set point of temperature.Thus, the heating unit that does not need to be used for Fast Heating arranges as different system with the heating unit that is used for Heat preservation, can realize Fast Heating and Heat preservation by more simple structure.In addition, in the execution of Heat preservation pattern, the temperature that can suppress toilet seat sharply rises, and suppresses to produce temperature uneven.Thereby the user that can suppress to be seated at toilet seat feels bad.
In addition, because rectification output fully step-down of quilt by step-down section, so the input voltage of the resonant circuit under the Heat preservation pattern is lower than the input voltage of the resonant circuit under the Fast Heating pattern.Thereby control part does not need to change the control cycle of the on/off of the 1st switch element when carrying out respectively Fast Heating pattern and Heat preservation pattern.Control part can determine to be suitable for cycle of operation condition of the resonance action of resonant circuit.
Thereby, be the time of no-voltage even, also there is resonance voltage less than the resonance amplitude under the Fast Heating pattern in the resonance amplitude under the Heat preservation pattern.Thereby control part can suppress switching loss by carrying out the ZVT action under the Heat preservation pattern.
And, because rectification output fully step-down of quilt by step-down section, so the electric current that flows in load coil under the Heat preservation pattern is less than the electric current that flows in load coil under the Fast Heating pattern.Thereby, can suppress the stray field by the load coil generation, suppress the impact that the user who is seated at toilet seat is produced.
In addition, according to a form of the present invention, a kind of closet seat warming device is provided, it is characterized by, described Fast Heating pattern has: the 1st Fast Heating pattern, described control part is controlled to continuous on-state with described the 2nd switch element, described rectification output is not carried out step-down and is supplied to described inverter, carries out eddy-current heating in the mode of the temperature of the described toilet seat of continuous raising; And the 2nd Fast Heating pattern, described control part carries out switch control to described the 2nd switch element, thereby described rectification output is carried out step-down and supplied to described inverter, carries out eddy-current heating in the mode of the temperature of the described toilet seat of continuous raising.
According to this closet seat warming device, under the 1st Fast Heating pattern, control part is controlled to continuous on-state with the 2nd switch element, rectification output is not carried out step-down and is supplied to inverter, improves continuously the temperature of toilet seat.On the other hand, under the 2nd Fast Heating pattern, control part carries out switch control to the 2nd switch element, thereby rectification output is carried out step-down and supplied to inverter, improves continuously the temperature of toilet seat.Thus, control part by initial execution the 1st Fast Heating pattern of Fast Heating pattern and after carry out the 2nd Fast Heating pattern, or hour carry out the 2nd Fast Heating pattern at desired temperature rising value, thereby can control by step-down section the rate of rise in temperature of the toilet seat under the Fast Heating pattern, can suppress overshoot.
In addition, according to a form of the present invention, a kind of closet seat warming device is provided, it is characterized by, described control part is as follows, when carrying out described Heat preservation pattern, by described step-down section step-down is carried out in described rectification output, reduce in order to compare electric power consumption when carrying out described the 2nd Fast Heating pattern.
According to this closet seat warming device, when carrying out the Heat preservation pattern, rectification output, is fully reduced in order to compare electric power consumption during with execution the 2nd Fast Heating pattern by step-down by step-down section.Thus, the toilet seat temperature stabilization under the Heat preservation pattern can be made, stray field can be more positively suppressed 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 control part is as follows, when rated condition is set up, stops to carry out described Fast Heating pattern, when described rated condition is false, carries out described Heat preservation pattern.
According to this closet seat warming device, be under the state of unlatching in warm toilet seat function, when the run time of Fast Heating pattern only is defined in the rated condition establishment.In addition, when rated condition was false, control part was carried out the Heat preservation pattern.Thus, can further improve security.
In addition, according to a form of the present invention, a kind of closet seat warming device is provided, it is characterized by, also possess and detect the detecting sensor of taking one's seat that the user takes one's seat to described toilet seat, described control part is as follows, when the described detecting sensor of taking one's seat does not detect described condition establishment of taking one's seat, carry out described Fast Heating pattern, when the described detecting sensor of taking one's seat does not detect described condition of taking one's seat and is false, carry out described Heat preservation pattern.
According to this closet seat warming device, when the detecting sensor of taking one's seat detected the user and is seated at toilet seat, control part was carried out the Heat preservation pattern.Thus, can further improve security to the user who is 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, described control part is as follows, when the condition that detects the closed condition of described toilet cover in described toilet cover opening _ closing detecting sensor is set up, carry out described Fast Heating pattern, when the condition that detects the closed condition of described toilet cover in described toilet cover opening _ closing detecting sensor is false, carry out described Heat preservation pattern.
According to this closet seat warming device, control part is as follows, when the toilet cover opening _ closing detecting sensor detects the state that toilet cover closes, carries out the Fast Heating pattern, when the toilet cover opening _ closing detecting sensor does not detect the state that toilet cover closes, carries out the Heat preservation pattern.Thereby, control part with heating mode from the time that the Fast Heating pattern switches to the Heat preservation pattern be guaranteed to from toilet cover begin to be opened to be in till the state of opening during.Thereby, can improve the security to the user who is 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, described control part is as follows, when the condition that does not detect the open mode of described toilet cover in described toilet cover opening _ closing detecting sensor is set up, carry out described Fast Heating pattern, when the condition that does not detect the open mode of described toilet cover in described toilet cover opening _ closing detecting sensor is false, carry out described Heat preservation pattern.
According to this closet seat warming device, control part is as follows, when the toilet cover opening _ closing detecting sensor does not detect the state that toilet cover opens, carries out the Fast Heating pattern, when the toilet cover opening _ closing detecting sensor detects the state that toilet cover opens, carries out the Heat preservation pattern.Thereby, begin to be opened to from toilet cover till being in the state of opening fully during, control part can continue to carry out the Fast Heating pattern and the temperature that makes toilet seat near proper temperature.Thus, can positively suppress the user and when being seated at toilet seat, feel ice-cold.
In addition, according to a form of the present invention, a kind of closet seat warming device is provided, it is characterized by, described step-down section determines the dutycycle of the turn-on time of described the 2nd switch element according to described rectification output, described rectification output is higher then to determine less described dutycycle.
According to this closet seat warming device, control part can determine according to rectification output the dutycycle of the turn-on time of the 2nd switch element, the FEEDFORWARD CONTROL that execution is not affected by the output voltage of rectification part.Thereby, can further improve security.
In addition, according to a form of the present invention, a kind of closet seat warming device is provided, it is characterized by, the temperature sensor that also possesses 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, then described the 2nd switch element is controlled to off-state.
According to this closet seat warming device, control part is as follows, if the detected temperatures of temperature sensor is higher than setting, then the 2nd switch element is controlled to off-state.Thereby the 2nd switch element has the function as safety device.That is, control part can be controlled to off-state with the 2nd switch element, can disconnect to load coil and switching on.Thereby, can further improve security.
Below, with reference to accompanying drawing embodiments of the present invention are described.And, in each figure, to identical inscape mark same-sign and suitable detailed.
Fig. 1 is the three-dimensional pattern figure that illustration possesses the toilet-flushing apparatus of the related closet seat warming device of embodiments of the present invention.
In addition, Fig. 2 is the ideograph of the toilet seat of expression present embodiment.
And Fig. 2 (a) is the ideograph of overlooking from the toilet seat of top observation present embodiment, and Fig. 2 (b) is the cross-section model of the section A-A shown in Fig. 2 (a).
Toilet-flushing apparatus shown in Figure 1 possesses: Western-style toilet 800; And closet seat warming device 100 disposed thereon.Closet seat warming device 100 has shell 400, toilet seat 200 and toilet cover 300.Opening and closing respectively toilet seat 200 and toilet cover 300 freely, the earth's axis is supported in shell 400.Toilet cover 300 can be above covering toilet seat 200 under the state of closing.And, do not need necessarily to be provided with toilet cover 300.
Detect the detecting sensor 402 of entering the room that the user enters the toilet, detect the toilet cover opening _ closing detecting sensor 406 of taking one's seat detecting sensor 404 and detecting the open and-shut mode of toilet cover 300 that the user is seated at toilet seat 200 and be arranged at shell 400(with reference to Fig. 3).
The detecting sensor of entering the room 402 can detect the door of just having opened the toilet and user after entering or want to enter the toilet and be positioned in front of the door user.That is, the detecting sensor of entering the room 402 not only can detect the user who has entered the toilet, can also detect to enter the user in front of the door that toilet user before namely is positioned at the outside, toilet.As such detecting sensor 402 of entering the room, can use the microwave remote sensor of thermoelectric pickup (P yroelectric Sensor) or doppler sensor etc. etc.Use utilize microwave Doppler effect sensor or when sending microwave and detecting the sensor of detected body according to the amplitude (intensity) of the microwave of reflection, can cross the toilet and detect user's existence.That is, can detect the user who enters before the toilet.
As the detecting sensor 404 of taking one's seat, such as distance measuring sensor that can use infrared ray projection and accepted light formula etc.As toilet cover opening _ closing detecting sensor 406, such as the combination that can use hall integrated circuit and magnet or microswitch (microswitch) etc.
And toilet cover opening _ closing detecting sensor 406 is not limited to and is built in the shell 400, also can be arranged on the hinge section of toilet cover 300 or the outside of shell 400.That is, as long as toilet cover opening _ closing detecting sensor 406 can detect the open and-shut mode of toilet cover 300.This point also is identical for take one's seat detecting sensor 404 and the detecting sensor 402 of entering the room, 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 the shell 400.That is, be seated at toilet seat 200 as long as the detecting sensor 404 of taking one's seat can detect the user, enter the toilet as long as the detecting sensor 402 of entering the room can detect the user.For example, also can adopt following method, the detecting sensor 402 of entering the room is installed in the entrance of toilet as split, the signal that the user is entered the toilet by infrared communication is delivered to the control part in the shell 400.
Shown in Fig. 2 (b), toilet seat 200 has the framework 210 that forms toilet seat 200 profiles.Framework 210 forms such as the material that is had insulating properties by Trees fat etc.And framework 210 both can be formed by a plurality of members, also can be formed by 1 member.
Framework 210 inside at toilet seat 200 are provided with the load coil 222 that produces magnetic field because passing into high frequency electric.In toilet seat shown in Figure 2 200, load coil 222 is attached to top (inner face relative with seated surface) 210a of toilet seat 200 inside.But the set-up mode of load coil 222 is not limited to this, and the not shown supporter that load coil 222 also can be arranged on toilet seat 200 inside supports.
The electric conductor (heating part) 231 of the magnetic field induction heating that is produced by load coil 222 is arranged at toilet seat 200.More specifically, electric conductor 231 is because eddy current generates heat, and this eddy current is responded to generation by the magnetic field that is produced by load coil 222.Electric conductor 231 is attached to top (seated surface) of toilet seat 200.Perhaps, electric conductor 231 also can be arranged on framework 210 inside of toilet seat 200.Perhaps, electric conductor 231 also can be attached to the top 210a of toilet seat 200 inside.
As electric conductor 231, such as using the such metals of paramagnetic material such as the ferromagnetic materials such as iron, stainless steel or aluminium.In order to make magnetic field be difficult to emit to toilet seat 200 outsides, more preferably electric conductor 231 uses the ferromagnetic materials such as the large iron of resistance, stainless steel.And, when being arranged on electric conductor 231 above the toilet seat 200, more preferably the processing such as application, covering are implemented on the surface of electric conductor 231, in order to human body is not directly contacted with electric conductor 231.
According to present embodiment, closet seat warming device 100 can utilize inductive heating principle promptly to heat the seated surface of toilet seat 200, can make quickly seated surface reach proper temperature.In addition, because the related closet seat warming device 100 of present embodiment can promptly heat the seated surface of toilet seat 200, therefore when the user does not use toilet seat 200, do not need toilet seat 200 is incubated.Thereby the power consumption in the time of can suppressing standby realizes energy-saving.
On the other hand, when after the user is seated at toilet seat 200, namely sitting on the toilet seat 200, the seated surface of toilet seat 200 need to be incubated into proper temperature.For example, if be provided as the heater (heater) of resistive element for seated surface is incubated, the heating unit (eddy-current heating unit) that then needs to be used for Fast Heating arranges as different system with the heating unit (unit heater) that is used for Heat preservation.Like this, might cause closet seat warming device 100 complex structures or cost to improve.
Relative therewith, the related closet seat warming device 100 of present embodiment is carried out Fast Heating and Heat preservation by eddy-current heating.Namely, the related closet seat warming device 100 of present embodiment can be carried out Fast Heating pattern and Heat preservation pattern, mode with the seated surface temperature of continuous raising toilet seat 200 under the Fast Heating pattern is carried out eddy-current heating, and the mode that remains in the set point of temperature with the seated surface temperature with toilet seat 200 under the Heat preservation pattern is carried out eddy-current heating.Thus, the related closet seat warming device 100 of present embodiment can be realized Fast Heating and Heat preservation by more simple structure.
Fig. 3 is the circuit diagram of the related closet seat warming device of present embodiment.
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 consumption test section 430.Control part 410 is to eddy-current heating power-on switch 421 transfer control signals.Eddy-current heating power-on switch 421 is controlled to the ON(connection of the energising of high-frequency power supply circuit 500 according to the control signal that sends from control part 410)/the OFF(disconnection).Electric power consumption test section 430 mensuration detect the electric power consumption of the electric conductor 231 that is arranged at toilet seat 200 indirectly to the electrical current of high-frequency power supply circuit 500 by taking advantage of calculation with the voltage of commercial power 10.Be connected with commercial power 10 at control part 410 and eddy-current heating power-on switch 421.
In toilet seat 200, be provided with the high-frequency power supply circuit 500 that generates high frequency electric and supply with this high frequency electric to load coil 222.High-frequency power supply circuit 500 has rectification part 510, step-down section 520, filtering section 530, resonant circuit 540 and inverter 550.
510 pairs of electric currents of being supplied with by commercial power 10 of rectification part carry out rectification.
Step-down section 520 is reduction voltage circuits of copped wave (chopper) formula, have the 2nd switch element 521, diode 522, step-down control part 523, triangular wave Bian Change section 525, comparator 526 and filtering section 530, step-down is carried out in the rectification output of rectification part 510 supplied to inverter 550.Filter coil 531 in the filtering section 530 and filter condenser 533 are not only as the part of chopped mode reduction voltage circuit and are brought into play function.Filter condenser 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.Thereby filter coil 531 is also brought into play and is become high impedance for high frequency waves and prevent from disturbing the effect that is delivered to commercial power 10 sides.And, also can be not with buck functionality and filter function dual-purpose coil and capacitor, make it have separately the combination of coil and capacitor and be connected in series.
Resonant circuit 540 has load coil 222 and resonating capacitor 541.Inverter 550 has the 1st switch element 551, the electric power that control is supplied with to resonant circuit 540.The 1st switch element 551 for example uses insulated gate bipolar tran sistor (Insulated Gate Bipolar Transistor:IGBT).
In addition, in toilet seat 200, be provided with thermistor (temperature sensor) 255 and the vibration control part 257 of exporting indication judegment part 251, moving/stop instruction unit 253, detection toilet seat 200 temperature.Control part 410 sends the control signal of output indication and step-down indication to output indication judegment part 251.Output indication judegment part 251 bases transmit control signal to step-down control part 523 from the control signal that control part 410 sends.Step-down control part 523 is controlled the on/off of the 2nd switch element 521 according to the control signal that sends from output indication judegment part 251.The 2nd switch element 521 switches whether step-down is carried out in the rectification output of rectification part 510 according to the control signal that sends from step-down control part 523.The state that output indication judegment part 251 can be differentiated the output indication sends to control part 410.
The instruction unit 253 of moving/stop to transmit control signal to vibration control part 257 according to the control signal that sends from output indication judegment part 251.Vibration control part 257 is according to from moving/stop the control signal that instruction unit 253 sends the on/off of the 1st switch element 551 being controlled.The instruction unit 253 of moving/stopping to be connected with thermistor 255.The instruction unit 253 of moving/stop can be passed through according to the temperature information of the toilet seat 200 that is detected by thermistor 255 on/off of vibration control part 257 controls the 1st switch element 551.Thus, moving/stop instruction unit 253 can be to the action of heat time heating time, heat characteristic or the high-frequency power supply circuit 500 of toilet seat 200/stop to control.
As mentioned above, control part 410 sends the heating indication to output indication judegment part 251, controls by moving/stop the on/off of 257 pairs of the 1st switch elements 551 of instruction unit 253 and vibration control part.410 of control parts carry out the action indication of the on/off of eddy-current heating, directly the on/off of the 1st switch element 551 are controlled by vibration control part 257.The action of vibration control part 257 is as follows.
At first, when vibration control part 257 was controlled to on-state with the 1st switch element 551, the electric current of being supplied with by commercial power 10 was rectified 510 rectifications of section, is carried out filtering and is flowed into load coil 222 by filtering section 530.At this moment, the rectification of rectification part 510 output is because of the suitably step-down of switch control of the 2nd switch element 521 of step-down section 520.
Both can in step-down section 520 shown in Figure 3, carry out the step-down action by FEEDFORWARD CONTROL, also can in the 520a of step-down section shown in Figure 4, carry out the step-down action by FEEDBACK CONTROL.When step-down section 520 shown in Figure 3 carries out step-down by FEEDFORWARD CONTROL to the rectification output of rectification part 510, even for example high-frequency power supply circuit 500 moves in the mode of imagining above large current flowing and when the electric voltage exception of filter condenser 533 reduces, the voltage of input side that also can be by step-down section 520 carries out step-down control.Thereby, can not enter the output that improves step-down section 520 and the action that makes larger current flowing.Thereby, can further improve security.On the other hand, when the 520a of step-down section shown in Figure 4 carries out step-down by FEEDBACK CONTROL to the rectification of rectification part 510 output, even for example when the voltage change of commercial power 10, also can suppress the output change and further realize stabilisation.
If electric current flows, then in load coil 222, save bit by bit magnetic energy in load coil 222.Next, when vibration control part 257 is controlled to off-state with the 1st switch element 551, can not supply with electric current by commercial power 10, on the other hand, the magnetic energy of saving bit by bit in load coil 222 moves to resonating capacitor 541 as electrostatic energy.Afterwards, energy again turns back to load coil 222 and resonates from resonating capacitor 541.
In the way of this resonance action, when vibration control part 257 was controlled to on-state with the 1st switch element 551 again, magnetic energy added in the load coil 222, repeatedly carried out aforesaid action and proceeded resonance.
Like this, by carrying out switching controls by on-state and the off-state of vibration control part 257 pairs of the 1st switch elements 551, thereby in load coil 222 and resonating capacitor 541, resonate the generation high frequency electric.High frequency electric supplies to load coil 222.Load coil 222 produces high frequency magnetic field by the high frequency electric that is supplied to.Because this high frequency magnetic field produces eddy current in electric conductor 231, electric conductor 231 heatings.By above action, control part 410 can be carried out the Fast Heating pattern of carrying out eddy-current heating in the mode of the seated surface temperature of continuous raising toilet seat 200.For example, when the detecting sensor 402 of entering the room detected the user and enters the room, control part 410 can be controlled to the energising of load coil 222 and promptly heat toilet seat 200.Thereby, can realize that the user does not feel ice-cold proper temperature when being seated at toilet seat 200.
Next, when namely sitting on the toilet seat 200 after the user is seated at toilet seat 200, control part 410 sends the indication of Heat preservation and the 1st switch element 551 is carried out on/off control, and the seated surface temperature of toilet seat 200 is remained in the set point of temperature.At this moment, if vibration control part 257 just carries out on/off control to the 1st switch element 551 simply, then might produce excessive switching loss at the 1st switch element 551.And, might damage because switching loss causes the 1st switch element 551.
The action of the closet seat warming device 100 that the problem that next, produces when coming seated surface to toilet seat 200 to be incubated by eddy-current heating with reference to accompanying drawing and present embodiment are related describes.
Fig. 5 is for the Fast Heating pattern of the related closet seat warming device of explanation Comparative Examples and the time diagram of Heat preservation pattern.
In addition, Fig. 6 is for the Fast Heating pattern of the related closet seat warming device of explanation present embodiment and the time diagram of Heat preservation pattern.
In addition, Fig. 7 is the time diagram for the small heating mode of the related closet seat warming device of explanation present embodiment.
Shown in Fig. 5 (a), when vibration control part 257 is controlled to on-state with the 1st switch element 551, the coil current I that in load coil 222, flows LThen increase (constantly t101).Thus, in load coil 222, save bit by bit magnetic energy.Next, when vibration control part 257 was controlled to off-state with the 1st switch element 551, the magnetic energy of saving bit by bit in load coil 222 then moved (constantly t102) as electrostatic energy to resonating capacitor 541.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 beginning during to reverse flow, resonance voltage V CEBegin to reduce (constantly t103).That is, resonating capacitor 541 begins discharge.And, although resonance voltage V CETo vibrate take the input voltage (with reference to the dotted line shown in Fig. 5 (a)) of resonant circuit 540 as benchmark, but owing to such as because being built in free-wheel diode 552 grades in the switch element 551 by clamper, therefore roughly remain zero (moment t104).In addition, owing in above action, in electric conductor 231, produce eddy current and electric conductor 231 heatings, so resonance energy is tending towards decay.
Relative therewith, when coil current IL began to increase again, vibration control part 257 was controlled to on-state (constantly t105) with the 1st switch element 551.Thus, in load coil 222, again save bit by bit energy.
Like this, electric conductor 231 generates heat with the LCR resonance action of electric conductor (R) 231 by load coil (L) 222, resonating capacitor (C) 541.Thereby, in order when the seated surface to toilet seat 200 is incubated, to suppress eddy-current heating output, need to suppress the energy of resonance action.The energy of resonance action is determined by vibration amplitude (current amplitude) and frequency.Thereby control part 410 is exported thereby can suppress eddy-current heating by to the control of the switch the prolongation cycle as reducing vibration amplitude or reducing work frequency of the 1st switch element 551.
But, if consider that the detecting sensor 402 of for example entering the room detects the user and enters the room, thereby control part 410 controls are to load coil 222 energisings and promptly heat toilet seat 200, and then the eddy-current heating under the preferred Fast Heating pattern is output as for example approximately more than 1000 watts.On the other hand, remain on as the user does not feel set point of temperature ice-cold when being seated at toilet seat 200 in if consider temperature with seated surface, then the eddy-current heating under the Heat preservation pattern is output as for example approximately about 50 watts.That is, between Fast Heating pattern and Heat preservation pattern, there be the poor of larger eddy-current heating output.
In addition, when carrying out eddy-current heating, exist by the resonant frequency of load coil 222 with the combination decision of resonating capacitor 541.Generally speaking, carry out the switch control of the 1st switch element 551 with near the frequency the resonant frequency.Thereby, if carry out the switch control of the 1st switch element 551 with optional frequency in order to adjust eddy-current heating output, then can break away from the resonance action.Thereby, if the whole difference that aforesaid larger eddy-current heating is exported of logical overfrequency Tone is controlled, then might break away from the resonance action.
More specifically describe, under the Heat preservation pattern, make frequency be lower than the Fast Heating pattern in order to suppress eddy-current heating output, then must prolong the on-state time (for convenience of explanation, hereinafter referred to as " turn-on time ") of the 1st switch element 551.If prolong the turn-on time of the 1st switch element 551, then coil current I LBecome larger.This involves the increase vibration amplitude.Thereby, can not get suppressing the effect that eddy-current heating is exported.That is, just reducing work frequency then can not reduce eddy-current heating output, load coil 222, resonating capacitor 541 need to be adjusted into corresponding to low-frequency value.
On the other hand, in order under the Heat preservation pattern, to suppress eddy-current heating output, consider vibration amplitude is reduced to less than the Fast Heating pattern.Shown in Fig. 5 (b) and Fig. 5 (c), be shorter than the Fast Heating pattern turn-on time of the 1st switch element 551 if make, then can under the Heat preservation pattern, make vibration amplitude less than the Fast Heating pattern.But, shown in Fig. 5 (c), be shorter than the Fast Heating pattern turn-on time of the 1st switch element 551 if make, then the switching loss on the 1st switch element 551 might become problem.
In the circuit of induction heating mode, one of reason of utilizing aforesaid resonance action is, in order to become the 0V(no-voltage at the voltage that acts on the 1st switch element 551) the moment, the vibration control part 257 make the 1st switch element 551 suppress switching loss for on-state.Resonance amplitude in the resonance action shown in Fig. 5 (a) and Fig. 5 (b) is greater than the resonance amplitude in the action of the resonance shown in Fig. 5 (c).And in the action of the resonance shown in Fig. 5 (a) and Fig. 5 (b), having the voltage that acts on the 1st switch element 551 is resonance voltage V CEBecome the moment (constantly t104～t106, the t114～t116) of no-voltage.Thereby, in the resonance shown in Fig. 5 (a) and Fig. 5 (b) action, by at resonance voltage V CEControl part 410 makes the 1st switch element 551 be on-state (carrying out what is called " ZVT action ") when becoming no-voltage, thereby can suppress switching loss.
On the other hand, the resonance amplitude in the action of the resonance shown in Fig. 5 (c) is less than the resonance amplitude in the action of the resonance shown in Fig. 5 (a) and Fig. 5 (b).In addition, become resonance voltage V CEInput voltage and resonance shown in Fig. 5 (a) and Fig. 5 (b) action of resonant circuit 540 of vibration benchmark in the input voltage of resonant circuit 540 identical.Thereby, even vibrate resonance voltage V take the input voltage of resonant circuit 540 as benchmark CECan not become no-voltage yet.Thereby, proceed the resonance action in order in the eddy-current heating action of hanging down output, also to suppress the decay of resonance energy, vibration control part 257 need to be at resonance voltage V CEMake when being not no-voltage the 1st switch element 551 be on-state.That is, in the action of the resonance shown in Fig. 5 (c), control part 410 can not carry out the ZVT action.Like this, the possibility that exists switching loss increase and the 1st switch element 551 to damage or burn out.
Damage for fear of switch element 551, also studied following methods, carry out off and on the eddy-current heating action by control part 410, thereby suppress fifty-fifty eddy-current heating output, the seated surface temperature of toilet seat 200 is remained in the set point of temperature.But, might the user can feel that repeatedly the connecting and disconnecting of eddy-current heating action feel bad by skin.
To this, the control part 410 of present embodiment sends the indication of carrying out step-down to output indication judegment part 251, its result, and step-down control part 523 carries out the switch control of the 2nd switch element 521, fully step-down is carried out in the rectification output of rectification part 510.That is, control part 410 usefulness step-down sections 520 control the poor of larger eddy-current heating output between Fast Heating pattern and the Heat preservation pattern.
Be arranged on toilet seat 200 when interior at high-frequency power supply circuit shown in Figure 3 500, the voltage of the rectification output that step-down section 520 can be by rectification part 510 is the dutycycle that the input voltage of step-down section 520 decides the turn-on time of the 2nd switch element 521.In addition, the input voltage of step-down section 520 is higher, and then step-down section 520 determines to be less dutycycle with the dutycycle of the turn-on time of the 2nd switch element 521.Like this, step-down control part 523 can determine dutycycle according to the input voltage of step-down section 520, carries out the FEEDFORWARD CONTROL of the output voltage impact of the splenium 520 of not accepting a surrender.Accordingly, even high-frequency power supply circuit 500 for example moves in the mode of large current flowing, also can cut off at the input side of step-down section 520.For example, can avoid following situation occurs, certain abnormal operation occur and eddy-current heating output increase, be the output voltage reduction of step-down section 520 owing to the input voltage to inverter 550, thereby step-down section 520 determines larger dutycycle, and eddy-current heating output further increases.Thereby, can further improve security.
As previously mentioned, the eddy-current heating under the Fast Heating pattern for example is output as approximately about 1000 watts, and on the other hand, the eddy-current heating under the Heat preservation pattern is output as for example approximately about 50 watts.That is, 410 pairs of step-down sections 520 of control part control, and make electric power consumption under the Heat preservation pattern become approximately about 1/20～1/10 times of electric power consumption under the Fast Heating pattern, fully step-down are carried out in the rectification output of rectification part 510.Thus, the temperature stabilization of the toilet seat 200 under the Heat preservation pattern can be made, stray field can be positively suppressed in addition.And, by electric power consumption test section 430(with reference to Fig. 3 and Fig. 4) detect electric power consumption.
At first, shown in Fig. 6 (a), control part 410 is controlled to continuous on-state with the 2nd switch element 521 when the 1st Fast Heating pattern of execution.Thus, under the 1st Fast Heating pattern, the rectification of rectification part 510 output is not supplied to inverter 550 by 520 step-downs of step-down section.That is, the commercial power after the rectification 10 becomes direct-connected state with load coil 222.Control part 410 can make the seated surface temperature of toilet seat 200 rise continuously and promptly heating.The 1st switch element 551, coil current I LAnd resonance voltage V CEAction or state and front about described the 1st switch element 551 of Fig. 5 (a), coil current I LAnd resonance voltage V CEAction or state identical.
Shown in Fig. 6 (b), control part 410 carries out the switch control of the 2nd switch element 521 when the 2nd Fast Heating pattern of execution.Thus, under the 2nd Fast Heating pattern, the rectification of rectification part 510 output is supplied to inverter 550 by 520 step-downs of step-down section.Even under the 2nd Fast Heating pattern, control part 410 also can make the seated surface temperature of toilet seat 200 rise continuously and promptly heating.
Because the rectification of rectification part 510 output is by 520 step-downs of step-down section, so coil current I LLess than the coil current I under the 1st Fast Heating pattern LThat is, the coil current I under the 2nd Fast Heating pattern LVibration amplitude less than the coil current I under the 1st Fast Heating pattern LVibration amplitude.Thereby, the resonance voltage V under the 2nd Fast Heating pattern CEResonance amplitude become less than the resonance voltage V under the 1st Fast Heating pattern C EResonance amplitude.In addition, the resonance energy under the 2nd Fast Heating pattern becomes less than the resonance energy under the 1st Fast Heating pattern.
Control part 410 does not change resonance action (turn-on time of the 1st switch element or frequency etc.), by carrying out step-down by the rectification output of 520 pairs of rectification part 510 of step-down section, just can compare the eddy-current heating output that more suppresses under the 2nd Fast Heating pattern with the eddy-current heating output under the 1st Fast Heating pattern.Thereby control part 410 can be by step-down section 520 be controlled the rate of climb of the seated surface temperature of the toilet seat 200 under the Fast Heating pattern, suppresses overshoot.
Because the rectification of rectification part 510 output by 520 step-downs of step-down section, therefore becomes resonance voltage V CEThe input voltage of resonant circuit 540 of vibration benchmark less than the input voltage of the resonant circuit 540 under the 1st Fast Heating pattern.Thereby, even also there is resonance voltage V in the resonance amplitude under the 2nd Fast Heating pattern less than the resonance amplitude under the 1st Fast Heating pattern CEBecome the moment (t214～t216) constantly of no-voltage.Thereby control part 410 can suppress switching loss by carry out the ZVT action under the 2nd Fast Heating pattern.
Shown in Fig. 6 (c), control part 410 is when carrying out the Heat preservation mould, and is identical during with the 2nd Fast Heating pattern of execution, sends the indication of the switch control of the 2nd switch element 521.And control part 410 is undertaken exporting more fully step-down than the rectification under the 1st and the 2nd Fast Heating pattern by the rectification output of 520 pairs of rectification part 510 of step-down section.That is, the rectification of rectification part 510 output is compared with the rectification output under the 1st and the 2nd Fast Heating pattern and is supplied to inverter 550 after the more fully step-down of step-down section 520.Control part 410 can remain on the seated surface temperature of toilet seat 200 in the set point of temperature.
Because the rectification of rectification part 510 output is by 520 abundant step-downs of step-down section, so coil current I LLess than the coil current I under the 1st and the 2nd Fast Heating pattern LThat is, the coil current I under the Heat preservation pattern LVibration amplitude less than the coil current I under the 1st and the 2nd Fast Heating pattern LVibration amplitude.Thereby, the resonance voltage V under the Heat preservation pattern CEResonance amplitude become less than the resonance voltage V under the 1st and the 2nd Fast Heating pattern CEResonance amplitude.In addition, the resonance energy under the Heat preservation pattern becomes less than the resonance energy under the 1st and the 2nd Fast Heating pattern.
Control part 410 does not change the resonance action, just can compare the eddy-current heating output that more suppresses under the Heat preservation pattern with the eddy-current heating output under the 1st and the 2nd Fast Heating pattern by fully carry out step-down with the rectification output of 520 pairs of rectification part 510 of step-down section.Thereby control part 410 can make electric power consumption be lower than electric power consumption under the 1st and the 2nd Fast Heating pattern, and the seated surface temperature of toilet seat 200 is remained in the set point of temperature.In addition, the seated surface temperature that can suppress toilet seat 200 sharply rises, and suppresses to produce temperature uneven.Thereby the user that can suppress to be seated at toilet seat 200 feels bad.
Compare with the 1st and the 2nd Fast Heating pattern, vibration control part 257 does not need to change the control cycle of the on/off of the 1st switch element 551.Vibration control part 257 is not subjected to the impact by the size of the eddy-current heating output of control part 410 indication, can determine to be suitable for cycle of operation condition of the resonance action of resonant circuit 540.
Because the rectification of rectification part 510 output by 520 abundant step-downs of step-down section, therefore becomes resonance voltage V CEThe input voltage of resonant circuit 540 of vibration benchmark be lower than the input voltage of the resonant circuit 540 under the 1st and the 2nd Fast Heating pattern.Thereby, even also there is resonance voltage V in the resonance amplitude under the Heat preservation pattern less than the resonance amplitude under the 1st and the 2nd Fast Heating pattern CEBecome the moment (t224～t226) constantly of no-voltage.Thereby control part 410 can suppress switching loss by carry out the ZVT action under the Heat preservation pattern.
And, as shown in Figure 7, control part 410 is by carrying out fully step-down with the rectification output of 520 pairs of rectification part 510 of step-down section in the same manner with the Heat preservation pattern, make simultaneously be shorter than the 1st, the 2nd Fast Heating pattern and Heat preservation pattern the turn-on time of the 1st switch element 551, thereby can carry out small heating mode.Thus, aforesaid effect about the Heat preservation pattern can be obtained, energy-saving can be further realized simultaneously.
In addition, because the rectification of rectification part 510 output by 520 abundant step-downs of step-down section, therefore becomes resonance voltage V CEThe input voltage of resonant circuit 540 of vibration benchmark be lower than the input voltage of the resonant circuit 540 under the 1st and the 2nd Fast Heating pattern.Thereby, even be shorter than turn-on time under the 1st, the 2nd Fast Heating pattern and the Heat preservation pattern turn-on time of the 1st switch element 551, also there is resonance voltage V CEBecome the moment (t234～t236) constantly of no-voltage.Thereby control part 410 can suppress switching loss by carry out the ZVT action under the Heat preservation pattern.
Fig. 8 is for the step-down action of the related closet seat warming device of explanation present embodiment and the curve map of stray field.
The supply voltage of (after the full-wave rectification) is shown in Fig. 8 (a) after the electric current of being supplied with by commercial power 10 is rectified 510 rectifications of section.
Shown in Fig. 8 (b), step-down control part 523 by the 525(of triangular transformation section with reference to Fig. 3) generate the triangular wave with amplitude identical with the supply voltage shown in Fig. 8 (a).
Next, shown in Fig. 8 (c), compare the dutycycle of the turn-on time of the 2nd switch element 521 of decision step-down section 520 by the voltage of 526 pairs of triangular waves that generate of comparator and the voltage of regulation.Like this, shown in Fig. 8 (d), the output voltage of restriction step-down section 520 is the input voltage of resonant circuit 540.
Thus, such as the front about shown in the described content of Fig. 6 (c), the coil current I under the Heat preservation pattern LBecome less than the coil current I under the 1st and the 2nd Fast Heating pattern LThat is, the coil current I under the Heat preservation pattern LVibration amplitude less than the coil current I under the 1st and the 2nd Fast Heating pattern LVibration amplitude.Thereby, can suppress the stray field by load coil 222 generations, suppress the impact that the user who is seated at toilet seat 200 is produced.
And, in the method carrying out off and on the average output of eddy-current heating action and reduction as the Heat preservation pattern, owing to the coil current I in the moment of carrying out eddy-current heating LVibration amplitude become large, therefore worry the user who is seated at toilet seat 200 is exerted an influence.
Next, describe with reference to the concrete example of accompanying drawing to the action of the related closet seat warming device 100 of present embodiment.
Fig. 9 is the time diagram of concrete example of the action of the related closet seat warming device of expression present embodiment.
At first, detect before the user enters the room in the detecting sensor 402 of entering the room, the seated surface temperature of toilet seat 200 is room temperature, does not remain in the imperceptible set point of temperature ice-cold of user (constantly before the t301).Next, when the detecting sensor 402 of entering the room detected the user and enters the room, control part 410 was controlled to continuous on-state with the 2nd switch element 521, sent the beginning indication of switch control of the 1st switch element 551 and carried out Fast Heating pattern (constantly t301).Thus, the seated surface temperature of toilet seat 200 rises continuously and promptly is heated.
Next, when the seated surface temperature of toilet seat 200 becomes proper temperature (target temperature or design temperature etc.), control part 410 carries out the switch control of the 2nd switch element 521, exports the rectification output that compares rectification part 510 with the rectification under the Fast Heating pattern and more carries out step-down and carry out Heat preservation pattern (constantly t302).Thus, to be maintained at as the imperceptible proper temperature ice-cold of user be in the set point of temperature to the seated surface of toilet seat 200.In other words, the heat dissipation capacity that adds heat and toilet seat 200 that is incubated with the seated surface to toilet seat 200 is in thermally equilibrated temperature and is in stable.
Next, if the user manually or by the operation of not shown remote controller etc. opens toilet cover 300, then toilet cover opening _ closing detecting sensor 406 detects toilet cover 300 and begins to open (constantly t303), detects the intermediateness that toilet cover 300 is in closed condition and open mode (moment t303～t304).Next, toilet cover opening _ closing detecting sensor 406 detects the state (constantly t304) that toilet cover 300 is opened.And, also can be that control part 410 is carried out the control of automatically opening toilet cover 300 by not shown toilet cover opening _ closing drive division etc. when the detecting sensor 402 of entering the room detects the user and enters the room.
Next, when the user was seated at toilet seat 200, the detecting sensor of taking one's seat 404 detected the user and is seated at constantly t305 of toilet seat 200().And when the user disseated from toilet seat 200, the detecting sensor of taking one's seat 404 detected the user and is not seated at constantly t306 of toilet seat 200().
Next, if the user manually or by the operation of not shown remote controller etc. closes toilet cover 300, then toilet cover opening _ closing detecting sensor 406 detects toilet cover 300 and begins to close (constantly t307), detects the intermediateness that toilet cover 300 is in open mode and closed condition (moment t307～t308).Next, toilet cover opening _ closing detecting sensor 406 detects the state (constantly t308) that toilet cover 300 is closed.And, also can be that control part 410 is carried out the control (after moment t309) of autoshutdown toilet cover 300 by not shown toilet cover opening _ closing drive division etc. when the detecting sensor 402 of entering the room detects the user and goes out the chamber.
Next, when the detecting sensor 402 of entering the room detected the user and goes out the chamber, control part 410 stopped the switch control of the 2nd switch element 521, sent the stopping indication of switch control of the 1st switch element 551 and stopped Heat preservation pattern (constantly t309).That is, control part 410 stops toilet seat 200 heating.Thereby the seated surface temperature of toilet seat 200 reduces (after moment t309) gradually.
According to this concrete example, when the detecting sensor 402 of entering the room detected the user and enters the room, control part 410 can be carried out the Fast Heating pattern, promptly heats the seated surface of toilet seat 200 by eddy-current heating.Thus, do not need toilet seat 200 is incubated when the user does not use toilet seat 200, the power consumption in the time of can suppressing standby is realized energy-saving.In addition, when the seated surface temperature of toilet seat 200 became proper temperature, then control part 410 was carried out the Heat preservation pattern, can remain in the set point of temperature by the seated surface temperature of eddy-current heating with toilet seat 200.Thus, the heating unit that does not need to be used for Fast Heating arranges as different system with the heating unit that is used for Heat preservation, can realize Fast Heating and Heat preservation by more simple structure.
Figure 10 is the time diagram of other concrete examples of the action of the related closet seat warming device of expression present embodiment.
The detecting sensor of entering the room 402 detected the action of user before entering the room and front about the action before the moment t301 in the described concrete example of Fig. 9 identical (t311 was former constantly).
Next, when the detecting sensor 402 of entering the room detects the user and enters the room, control part 410 is controlled to continuous on-state with the 2nd switch element 521, sends the beginning indication of switch control of the 1st switch element 551 and carries out the 1st Fast Heating pattern (constantly t311).Thus, the seated surface temperature of toilet seat 200 rises continuously and promptly is heated.
Next, when rising to, the seated surface temperature of toilet seat 200 is lower than proper temperature for example during 3 ℃ temperature, control part 410 carries out the switch control of the 2nd switch element 521, and the rectification output of rectification part 510 is carried out step-down and carried out the 2nd Fast Heating pattern (constantly t312).Thus, the output of the eddy-current heating under the 2nd Fast Heating pattern is compared more suppressed with the eddy-current heating output under the 1st Fast Heating pattern.Thereby, as shown in figure 10, the climbing (t312～t313) constantly that the climbing (rate of climb) of the seated surface temperature of the toilet seat 200 under the 2nd Fast Heating pattern becomes the seated surface temperature that is lower than the toilet seat 200 under the 1st Fast Heating pattern.
Under the 2nd Fast Heating pattern, control part 410 also can make the seated surface temperature of toilet seat 200 rise continuously and promptly heat.And the seated surface temperature that control part 410 is not limited to toilet seat 200 from the moment that the 1st Fast Heating pattern switches to the 2nd Fast Heating pattern rises to the moment of the temperature that is lower than 3 ℃ of proper temperatures.Temperature difference (being 3 ℃ in this concrete example) about the switching instant that becomes heating mode can suitably change.
Next, when the seated surface temperature of toilet seat 200 becomes proper temperature, control part 410 changes the condition of the switch control of the 2nd switch element 521, particularly, reduce the dutycycle of the turn-on time of the 2nd switch element 521, export the rectification output that compares rectification part 510 with the rectification under the 1st and the 2nd Fast Heating pattern and more carry out step-down and carry out Heat preservation pattern (constantly t313).Thus, to be maintained at as the imperceptible proper temperature ice-cold of user be in the set point of temperature to the seated surface of toilet seat 200.Next, the constantly action of t314～t320 is with identical about the action of the moment t303～t309 in the described concrete example of Fig. 9 in front.
According to this concrete example, the Fast Heating pattern has the 1st Fast Heating pattern and the 2nd Fast Heating pattern.Under the 1st Fast Heating pattern, control part 410 is controlled to continuous on-state with the 2nd switch element 521, the rectification output of rectification part 510 is not carried out step-down and is supplied to inverter 550.On the other hand, under the 2nd Fast Heating pattern, 410 pairs of the 2nd switch elements 521 of control part carry out switch control, and the rectification output of rectification part 510 is carried out step-down and supplied to inverter 550.Thus, the rate of climb of the seated surface temperature that control part 410 can be by the toilet seat 200 under 520 pairs of Fast Heating patterns of step-down section is controlled, and can suppress overshoot.
In following concrete example, when rated condition is set up, carry out the Fast Heating pattern, when rated condition is false, carry out the Heat preservation pattern.That is when, the run time of Fast Heating pattern is limited at the rated condition establishment.
Figure 11 is the time diagram of other other concrete examples of the action of the related closet seat warming device of expression present embodiment.
In this concrete example, when not being seated at toilet seat 200, the user carries out the Fast Heating pattern, when being seated at toilet seat 200, the user carries out the Heat preservation pattern.That is, in the taking one's seat of user, suppress the execution of Fast Heating pattern.The action of this concrete example be when closet seat warming device 100 does not have toilet cover 300, when not being provided with toilet cover opening _ closing detecting sensor 406, toilet cover opening _ closing detecting sensor 406 breaks down and effectively one of the action the such as when state recognition that toilet cover 300 is opened become closed condition.
The detecting sensor of entering the room 402 detected the action of user before entering the room and front about the action before the moment t301 in the described concrete example of Fig. 9 identical (t321 was former constantly).Next, when the detecting sensor 402 of entering the room detected the user and enters the room, control part 410 was controlled to continuous on-state with the 2nd switch element 521, sent the beginning indication of switch control of the 1st switch element 551 and carried out Fast Heating pattern (constantly t321).Thus, the seated surface temperature of toilet seat 200 rises continuously and promptly is heated.
Next, before the seated surface temperature of toilet seat 200 becomes proper temperature, when the detecting sensor 404 of taking one's seat detects the user and is seated at toilet seat 200, then control part 410 carries out the switch control of the 2nd switch element 521, exports the rectification output that compares rectification part 510 with the rectification under the Fast Heating pattern and more carries out step-down and carry out Heat preservation pattern (constantly t322).And, carry out the Heat preservation pattern by control part 410, thereby the seated surface temperature of toilet seat 200 becomes proper temperature (constantly t323).
Next, the constantly action of t324～t325 is in front about the action of the moment t306～t309 in the described concrete example of Fig. 9, with except the action of toilet cover opening _ closing detecting sensor 406 actions identical.
According to this concrete example, even before the seated surface temperature of toilet seat 200 becomes proper temperature, when detecting the user, the detecting sensor 404 of taking one's seat is seated at toilet seat 200, then control part 410 stops the Fast Heating pattern, carries out the Heat preservation pattern.That is, when the user was seated at toilet seat 200, control part 410 stopped to carry out the Fast Heating pattern.Thus, can further improve security to the user who is seated at toilet seat 200.
Figure 12 is the flow chart of other other concrete examples of the action of the related closet seat warming device of expression present embodiment.
The action of this concrete example is the example that move about the combination of the action of the described concrete example of Figure 11 about action and the front of the described concrete example of Figure 10 the front.The action of this concrete example is effectively one of the action the such as when user will be seated at toilet seat 200 in the execution of Fast Heating pattern.
At first, control part 410 judges whether the temperature of toilet seat 200 is lower than the upper limit (step S101).Such as by thermistor 255(with reference to Fig. 3) etc. detect the temperature of toilet seat 200.Temperature at toilet seat 200 is lower than in limited time (step S101: be), and control part 410 judges according to the detection signal of the detecting sensor 402 of entering the room whether the user has entered toilet (step S103).On the other hand, temperature at toilet seat 200 is not less than in limited time (step S101: no (condition of high temperature)), control part 410 is controlled to off-state (step S123) with the 2nd switch element, sends the stopping indication of switch motion of the 1st switch element 551 and stops eddy-current heating (step S125).
When the user enters the toilet (step S103: be), control part 410 judges whether the temperature of toilet seat 200 is proper temperature (step S105).On the other hand, when the user does not enter the toilet (step S103: no), control part 410 is carried out the front about the described action of step S123, S125.
When the temperature of toilet seat 200 is lower than proper temperature (step S105: be lower than proper temperature), control part 410 judges according to the detection signal of the detecting sensor 404 of taking one's seat whether the user has been seated at toilet seat 200(step S107).When the user is not seated at toilet seat 200 (step S107: no), control part 410 is judged the temperature of toilet seat 200 and poor (the step S109) of proper temperature.Be lower than when deducting 3 ℃ temperature from proper temperature (step S109: toilet seat＜proper temperature-3 ℃) in the temperature of toilet seat 200, control part 410 is controlled to continuous on-state (step S113) with the 2nd switch element 521.Next, control part 410 is set the binding hours (step S117) of the 1st Fast Heating pattern, sends the beginning indication of switch motion of the 1st switch element 551 and carries out eddy-current heating (the 1st Fast Heating pattern) (step S121).
On the other hand, be to be lower than the temperature of proper temperature and to be in from proper temperature to deduct 3 ℃ temperature when above (step S109: proper temperature＞toilet seat 〉=proper temperature-3 ℃) in the temperature of toilet seat 200, control part 410 carries out the switch control of the 2nd switch element 521, and step-down (step S115) is carried out in the rectification output of rectification part 510.Next, the heat time heating time (step S119) that control part 410 is set the 2nd Fast Heating pattern according to temperature and the heating mode of toilet seat 200, send the beginning indication of switch motion of the 1st switch element 551 and carry out eddy-current heating (the 2nd Fast Heating pattern) (step S121).
Proper temperature) or user when being seated at toilet seat 200 (step S107: be) (step S105: when the temperature of toilet seat 200 is proper temperature, control part 410 carries out the switch control of the 2nd switch element 521, exports the rectification output that compares rectification part 510 with the rectification under the 1st and the 2nd Fast Heating pattern and more carries out step-down (step S111).Next, control part 410 sends the beginning indication of switch motion of the 1st switch element 551 and carries out eddy-current heating (Heat preservation pattern) (step S121).
Be proper temperature when above (step S105: more than the proper temperature (high a little)) in the temperature of toilet seat 200, control part 410 is carried out fronts about the described action of step S123, S125.
According to this concrete example, control part 410 can suppress overshoot by the rate of rise in temperature that step-down section 520 controls the seated surface of the toilet seat 200 under the Fast Heating pattern, can further improve the security to the user who is seated at toilet seat 200 simultaneously.
Figure 13 is the time diagram of other other concrete examples of the action of the related closet seat warming device of expression present embodiment.
In addition, Figure 14 is the flow chart of the action of the related closet seat warming device of this concrete example of expression.
In this concrete example, only when detecting the state that toilet cover 300 closes, toilet cover opening _ closing detecting sensor 406 carries out the Fast Heating pattern, when not detecting the state that toilet cover 300 closes, toilet cover opening _ closing detecting sensor 406 carries out the Heat preservation pattern.That is, beyond the state that toilet cover 300 is closed, do not carry out the Fast Heating pattern.The action of this concrete example is effectively one of the action such as when toilet cover 300 is opened in the execution of Fast Heating pattern.
The detecting sensor of entering the room 402 detect the action of user before entering the room with in front about the action before the moment t301 in the described concrete example of Fig. 9 identical (t331 was former constantly).Next, when the detecting sensor 402 of entering the room detected the user and enters the room, control part 410 was controlled to continuous on-state with the 2nd switch element 521, sent the beginning indication of switch control of the 1st switch element 551 and carried out Fast Heating pattern (constantly t331).Thus, the seated surface temperature of toilet seat 200 rises continuously and promptly is heated.
Next, before the seated surface temperature of toilet seat 200 becomes proper temperature, when toilet cover opening _ closing detecting sensor 406 detects toilet cover 300 and begins to open, control part 410 carries out the switch control of the 2nd switch element 521, exports the rectification output that compares rectification part 510 with the rectification under the Fast Heating pattern and more carries out step-down and carry out Heat preservation pattern (constantly t332).And, carry out the Heat preservation patterns by control part 410, thereby after toilet cover opening _ closing detecting sensor 406 detects the state that toilet cover 300 opens (constantly t333), the seated surface temperature of toilet seat 200 becomes proper temperature (constantly t334).Next, the constantly action of t335～t339 is with identical about the action of the moment t305～t309 in the described concrete example of Fig. 9 in front.
Flow chart with reference to shown in Figure 14 further describes the action of this concrete example.
At first, the action of step S201～S207 is with identical about the action of the step S101 in the described concrete example of Figure 12～S107 in front.
When the user is not seated at toilet seat 200 (step S207: no), control part 410 judges according to the detection signal of toilet cover opening _ closing detecting sensor 406 whether toilet cover 300 is in the state (step S209) of closing.When toilet cover 300 is in the state of closing (step S209: be (determining)), control part 410 is controlled to continuous on-state (step S213) with the 2nd switch element 521.Next, the heat time heating time (step S215) that control part 410 is set the Fast Heating pattern according to temperature and the heating mode of toilet seat 200, send the beginning indication of switch motion of the 1st switch element 551 and carry out eddy-current heating (Fast Heating pattern) (step S221).That is, 410 of control parts are carried out the Fast Heating pattern when toilet cover 300 is in the state of closing.
On the other hand, proper temperature) or user when (step S207: be) or toilet cover 300 are not in the state of closing when being seated at toilet seat 200 (step S209: no) (step S205: when the temperature of toilet seat 200 is proper temperature, control part 410 carries out the switch control of the 2nd switch element 521, exports the rectification output that compares rectification part 510 with the rectification under the Fast Heating pattern and more carries out step-down (step S211).Next, control part 410 sends the beginning indication of switch motion of the 1st switch element 551 and carries out eddy-current heating (Heat preservation pattern) (step S221).
Be proper temperature when above (step S205: more than the proper temperature (high a little)) in the temperature of toilet seat 200, control part 410 is carried out with the front about the identical action of step S123, S125 in the described concrete example of Figure 12.
According to this concrete example, when toilet cover opening _ closing detecting sensor 406 detected toilet cover 300 and begins to open, control part 410 stopped the Fast Heating pattern and carries out the Heat preservation pattern.Thereby, control part 410 with heating mode from the time that the Fast Heating pattern switches to the Heat preservation pattern be guaranteed to from toilet cover 300 begin to be opened to be in till the state of opening during.Thereby, can improve the security to the user who is seated at toilet seat 200.
Figure 15 is the time diagram of other other concrete examples of the action of the related closet seat warming device of expression present embodiment.
In addition, Figure 16 is the flow chart of the action of the related closet seat warming device of this concrete example of expression.
In this concrete example, only when not detecting the state that toilet cover 300 opens, toilet cover opening _ closing detecting sensor 406 carries out the Fast Heating pattern, when detecting the state that toilet cover 300 opens, toilet cover opening _ closing detecting sensor 406 carries out the Heat preservation pattern.That is, even toilet cover 300 is opened in the execution of Fast Heating pattern, also carry out the Fast Heating pattern become the state of opening fully at toilet cover 300 till.
The detecting sensor of entering the room 402 detect the action of user before entering the room with in front about the action before the moment t301 in the described concrete example of Fig. 9 identical (t341 was former constantly).Next, when the detecting sensor 402 of entering the room detected the user and enters the room, control part 410 was controlled to continuous on-state with the 2nd switch element 521, sent the beginning indication of switch control of the 1st switch element 551 and carried out Fast Heating pattern (constantly t341).Thus, the seated surface temperature of toilet seat 200 rises continuously and promptly is heated.
Next, before the seated surface temperature of toilet seat 200 becomes proper temperature, begun to open even toilet cover opening _ closing detecting sensor 406 detects toilet cover 300, control part 410 also continues to carry out Fast Heating pattern (constantly t342).And, when 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, exports the rectification output that compares rectification part 510 with the rectification under the Fast Heating pattern and more carries out step-down and carry out Heat preservation pattern (constantly t343).Carry out the Heat preservation pattern by control part 410, thereby the seated surface temperature of toilet seat 200 becomes proper temperature (constantly t334).Next, the constantly action of t345～t349 is with identical about the action of the moment t305～t309 in the described concrete example of Fig. 9 in front.
Further the action of this concrete example is described with reference to flow chart shown in Figure 16.
At first, the action of step S301～S307 is with identical about the action of the step S101 in the described concrete example of Figure 12～S107 in front.
When the user is not seated at toilet seat 200 (step S307: no), control part 410 judges according to the detection signal of toilet cover opening _ closing detecting sensor 406 whether toilet cover 300 is in the state (step S309) of opening.When toilet cover 300 is not in the state of opening (step S309: no), control part 410 is controlled to continuous on-state (step S313) with the 2nd switch element 521.Next, the heat time heating time (step S315) that control part 410 is set the Fast Heating pattern according to temperature and the heating mode of toilet seat 200, send the beginning indication of switch motion of the 1st switch element 551 and carry out eddy-current heating (Fast Heating pattern) (step S321).That is, as long as toilet cover 300 is not in the state of opening fully, then control part 410 is carried out the Fast Heating pattern.
On the other hand, proper temperature) or user when (step S307: be) or toilet cover 300 are in the state of opening when being seated at toilet seat 200 (step S309: be (determining)) (step S305: when the temperature of toilet seat 200 is proper temperature, control part 410 carries out the switch control of the 2nd switch element 521, exports the rectification output that compares rectification part 510 with the rectification under the Fast Heating pattern and more carries out step-down (step S311).Next, control part 410 sends the beginning indication 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 the proper temperature (high a little)) in the temperature of toilet seat 200, control part 410 is carried out with the front about the identical action of step S123, S125 in the described concrete example of Figure 12.
According to this concrete example, even toilet cover 300 is opened in the execution of Fast Heating pattern, control part 410 is also carried out the Fast Heating pattern till becoming the state that toilet cover 300 opens fully.Thereby, begin to be opened to from toilet cover 300 be in the state of opening fully during, control part 410 can continue to carry out the Fast Heating pattern and the temperature that makes toilet seat 200 near proper temperature.Thus, can more positively suppress the user and when being seated at toilet seat 200, feel ice-cold.
Figure 17 is the time diagram of other other concrete examples of the action of the related closet seat warming device of expression present embodiment.
In this concrete example, when the temperature of toilet seat 200 is that the detected temperatures of temperature-sensitive resistance 255 becomes when being higher than setting or becoming setting, control part 410 is controlled to off-state with the 2nd switch element, sends the stopping indication of switch motion of the 1st switch element 551 and stops eddy-current heating.The action of this concrete example is when eddy-current heating output becomes excessive for the moment or effectively one of the action such as when action beyond the imagination occurs.
The detecting sensor of entering the room 402 detect the action of user before entering the room with in front about the action before the moment t301 in the described concrete example of Fig. 9 identical (t351 was former constantly).Next, when the detecting sensor 402 of entering the room detected the user and enters the room, control part 410 was controlled to continuous on-state with the 2nd switch element 521, sent the beginning indication of switch control of the 1st switch element 551 and carried out Fast Heating pattern (constantly t351).Thus, the seated surface temperature of toilet seat 200 rises continuously and promptly is heated.
Next, when the temperature of toilet seat 200 is that the detected temperatures of temperature-sensitive resistance 255 is when becoming ceiling temperature (setting), control part 410 is controlled to off-state with the 2nd switch element 521, sends the stopping indication of switch motion of the 1st switch element 551 and stops eddy-current heating (constantly t352).Thus, the seated surface temperature of toilet seat 200 little by little reduces.Next, toilet cover opening _ closing detecting sensor 406 detects toilet cover 300 and begins to open (constantly t353), detects the intermediateness that toilet cover 300 is in closed condition and open mode (moment t353～t354).
When the seated surface temperature of toilet seat 200 becomes proper temperature, control part 410 carries out the switch control of the 2nd switch element 521, exports the rectification output that compares rectification part 510 with the rectification under the Fast Heating pattern and more carries out step-down and carry out Heat preservation pattern (constantly t355).Thus, to be maintained at as the imperceptible proper temperature ice-cold of user be in the set point of temperature to the seated surface of toilet seat 200.Next, the constantly action of t356～t360 is with identical about the action of the moment t305～t309 in the described concrete example of Fig. 9 in front.
According to this concrete example, the 2nd switch element has the function as safety device.That is, control part 410 can be controlled to off-state with the 2nd switch element, can cut off high-frequency power supply circuit 500.Thereby, can further improve security.
For example, becoming even certain faults occur vibration control part 257 to stop the switch motion of the 1st switch element, can prevent by stopping the eddy-current heating action that also the temperature of toilet seat 200 from rising.
Figure 18 is the time diagram of other other concrete examples of the action of the related closet seat warming device of expression present embodiment.
In addition, Figure 19 is the flow chart of the action of the related closet seat warming device of this concrete example of expression.
The action of this concrete example is the example that move about the combination of the action of the described concrete example of Figure 13 about action and the front of the described concrete example of Figure 10 the front.In this concrete example, under the state in the way that state and the intermediateness of the state of opening that toilet cover 300 is closed are namely being opened, control part 410 is carried out more weak Fast Heating pattern (the 2nd Fast Heating pattern).The action of this concrete example is effectively one of the action such as when toilet cover 300 is opened in the execution of Fast Heating pattern.
The detecting sensor of entering the room 402 detect the action of user before entering the room with in front about the action before the moment t301 in the described concrete example of Fig. 9 identical (t361 was former constantly).Next, when the detecting sensor 402 of entering the room detects the user and enters the room, control part 410 is controlled to continuous on-state with the 2nd switch element 521, sends the beginning indication of switch control of the 1st switch element 551 and carries out the 1st Fast Heating pattern (constantly t361).Thus, the seated surface temperature of toilet seat 200 rises continuously and promptly is heated.
Next, before the seated surface temperature of toilet seat 200 becomes proper temperature, when toilet cover opening _ closing detecting sensor 406 detects toilet cover 300 and begins to open, control part 410 carries out the switch control of the 2nd switch element 521, and the rectification output of rectification part 510 is carried out step-down and carried out the 2nd Fast Heating pattern (constantly t362).Thus, the output of the eddy-current heating under the 2nd Fast Heating pattern is compared more suppressed with the eddy-current heating output under the 1st Fast Heating pattern.Thereby, as shown in figure 18, the climbing (t362～t363) constantly that the climbing of the seated surface temperature of the toilet seat 200 under the 2nd Fast Heating pattern becomes the seated surface temperature that is lower than the toilet seat 200 under the 1st Fast Heating pattern.
Next, when toilet cover opening _ closing detecting sensor 406 detects the state that toilet cover 300 opens fully, control part 410 changes the condition of the switch control of the 2nd switch element 521, particularly, reduce the dutycycle of the turn-on time of the 2nd switch element 521, export the rectification output that compares rectification part 510 with the rectification under the 1st and the 2nd Fast Heating pattern and more carry out step-down and carry out Heat preservation pattern (constantly t363).Thus, the imperceptible ice-cold such proper temperature of the seated surface insulation imaging user of toilet seat 200 is in the set point of temperature.
And, carry out the Heat preservation patterns by control part 410, thus the detecting sensor 404 of taking one's seat detect the user be seated at toilet seat 200 after (constantly t364), the seated surface temperature of toilet seat 200 becomes proper temperature (constantly t365).Next, the constantly action of t366～t369 is with identical about the action of the moment t306～t309 in the described concrete example of Fig. 9 in front.
Further the action of this concrete example is described with reference to flow chart shown in Figure 19.
At first, the action of step S401～S407 is with identical about the action of the step S101 in the described concrete example of Figure 12～S107 in front.
When the user is not seated at toilet seat 200 (step S407: no), control part 410 judges according to the detection signal of toilet cover opening _ closing detecting sensor 406 whether toilet cover 300 is in the state (step S409) of opening.When toilet cover 300 is not in the state of opening (step S409: no), control part 410 judges according to the detection signal of toilet cover opening _ closing detecting sensor 406 whether toilet cover 300 is in the state (step S410) of closing.When toilet cover 300 is in the state of closing (step S410: be (determining)), control part 410 is controlled to continuous on-state (step S413) with the 2nd switch element 521.Next, control part 410 is set the binding hours (step S417) of the 1st Fast Heating pattern, sends the beginning indication of switch motion of the 1st switch element 551 and carries out eddy-current heating (the 1st Fast Heating pattern) (step S421).
On the other hand, when toilet cover 300 is not in the state of closing (step S410: no), control part 410 carries out the switch control of the 2nd switch element 521, and step-down (step S415) is carried out in the rectification output of rectification part 510.Next, the heat time heating time (step S419) that control part 410 is set the 2nd Fast Heating pattern according to temperature and the heating mode of toilet seat 200, send the beginning indication of switch motion of the 1st switch element 551 and carry out eddy-current heating (the 2nd Fast Heating pattern) (step S421).
On the other hand, proper temperature) or user when (step S407: be) or toilet cover 300 are in the state of opening when being seated at toilet seat 200 (step S409: be (determining)) (step S405: when the temperature of toilet seat 200 is proper temperature, control part 410 carries out the switch control of the 2nd switch element 521, exports the rectification output that compares rectification part 510 with the rectification under the 1st and the 2nd Fast Heating pattern and more carries out step-down (step S411).Next, control part 410 sends the beginning indication of switch motion of the 1st switch element 551 and carries out eddy-current heating (Heat preservation pattern) (step S121).
Be proper temperature when above (step S405: more than the proper temperature (high a little)) in the temperature of toilet seat 200, control part 410 is carried out with the front about the identical action of step S123, S125 in the described concrete example of Figure 12.
According to this concrete example, in the execution of Fast Heating pattern, exist when opening the behavior of toilet cover 300, during till toilet cover 300 is opened fully, more repressed the 2nd Fast Heating pattern of eddy-current heating output is compared in control part 410 execution with the 1st Fast Heating pattern.Thus, when can guaranteeing security, more positively suppress the user and when 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 to above-mentioned embodiment suitably in addition the technology after the design alteration be also contained in the scope of the present invention.For example, the set-up mode of the shape of each key element that closet seat warming device 100 grades possess, size, material, configuration etc. or load coil 222 and electric conductor 231 etc. is not limited to illustrated content, can suitably change.
In addition, as long as technical feasible, can each key element that the respective embodiments described above possess be made up, as long as comprise feature of the present invention, these technology that make up are also contained in the scope of the present invention.
According to form of the present invention, provide a kind of closet seat warming device that can realize by more simple structure Fast Heating and Heat preservation.

Claims (9)

1. a closet seat warming device is characterized by, and possesses:
Resonant circuit has load coil and resonating capacitor;
Electric conductor is by the magnetic field induction heating by described load coil produced;
Toilet seat is provided with described electric conductor;
Inverter has the electric power that the 1st switch element and control are supplied with to described resonant circuit;
Rectification part is carried out rectification to the electric current of being supplied with by commercial power;
Step-down section has the 2nd switch element and the rectification of described rectification part output is carried out step-down and supplied to described inverter;
And control part, carry out Fast Heating pattern and Heat preservation pattern, under the Fast Heating pattern described inverter controlled and carry out eddy-current heating in the mode of the temperature of the described toilet seat of continuous raising, under the Heat preservation pattern described the 2nd switch element is carried out switch control and described rectification output is carried out step-down and supplied to described inverter, and carry out eddy-current heating in the mode that the temperature with described toilet seat remains in the set point of temperature.
2. closet seat warming device according to claim 1 is characterized by,
Described Fast Heating pattern has:
The 1st Fast Heating pattern, described control part is controlled to continuous on-state with described the 2nd switch element, described rectification output is not carried out step-down and is supplied to described inverter, carries out eddy-current heating in the mode of the temperature of the described toilet seat of continuous raising;
And the 2nd Fast Heating pattern, described control part carries out switch control to described the 2nd switch element, thereby described rectification output is carried out step-down and supplied to described inverter, carries out eddy-current heating in the mode of the temperature of the described toilet seat of continuous raising.
3. closet seat warming device according to claim 2 is characterized by,
Described control part is as follows, when carrying out described Heat preservation pattern, by described step-down section step-down is carried out in described rectification output, reduces in order to compare electric power consumption when carrying out described the 2nd Fast Heating pattern.
4. closet seat warming device according to claim 1 is characterized by,
Described control part is as follows, when rated condition is set up, stops to carry out described Fast Heating pattern, when described rated condition is false, carries out described Heat preservation pattern.
5. closet seat warming device according to claim 4 is characterized by,
Also possess and detect the detecting sensor of taking one's seat that the user takes one's seat to described toilet seat,
Described control part is as follows, when the described detecting sensor of taking one's seat does not detect described condition of taking one's seat and sets up, carries out described Fast Heating pattern, when the described detecting sensor of taking one's seat does not detect described condition of taking one's seat and is false, carries out described Heat preservation pattern.
6. closet seat warming device according to claim 4 is characterized by,
Also possess: toilet cover covers described toilet seat;
Reach the toilet cover opening _ closing detecting sensor, detect the open and-shut mode of described toilet cover,
Described control part is as follows, when the condition that detects the closed condition of described toilet cover in described toilet cover opening _ closing detecting sensor is set up, carry out described Fast Heating pattern, when the condition that detects the closed condition of described toilet cover in described toilet cover opening _ closing detecting sensor is false, carry out described Heat preservation pattern.
7. closet seat warming device according to claim 4 is characterized by,
Also possess: toilet cover covers described toilet seat;
Reach the toilet cover opening _ closing detecting sensor, detect the open and-shut mode of described toilet cover,
Described control part is as follows, when the condition that does not detect the open mode of described toilet cover in described toilet cover opening _ closing detecting sensor is set up, carry out described Fast Heating pattern, when the condition that does not detect the open mode of described toilet cover in described toilet cover opening _ closing detecting sensor is false, carry out described Heat preservation pattern.
8. closet seat warming device according to claim 1 is characterized by,
Described step-down section determines the dutycycle of the turn-on time of described the 2nd switch element according to described rectification output, described rectification output is higher then to determine less described dutycycle.
9. closet seat warming device according to claim 1 is characterized by,
The temperature sensor that also possesses 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, then described the 2nd switch element is controlled to off-state.
CN201280005610.XA 2011-03-28 2012-03-22 Closet seat warming device Expired - Fee Related CN103313639B (en)

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JP2011069662A JP5724510B2 (en) 2011-03-28 2011-03-28 Heating toilet seat device
JP2011-069662 2011-03-28
PCT/JP2012/057406 WO2012133129A1 (en) 2011-03-28 2012-03-22 Heated toilet seat apparatus

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JP6665832B2 (en) * 2017-06-02 2020-03-13 Toto株式会社 Sanitary washing equipment
TWI695240B (en) * 2017-09-25 2020-06-01 仁寶電腦工業股份有限公司 Sanitary equipment and control method thereof
CN114794949B (en) * 2022-04-07 2024-03-22 宁波吉田智能洁具科技有限公司 Seat ring heating control system and control method of intelligent toilet with detachable seat ring

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TW201244681A (en) 2012-11-16
CN103313639B (en) 2016-05-11

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