CN103313638A

CN103313638A - Heated toilet seat device

Info

Publication number: CN103313638A
Application number: CN2012800054975A
Authority: CN
Inventors: 村濑阳一; 寺田义郎; 金子义行; 松田泰宏
Original assignee: Toto Ltd
Current assignee: Toto Ltd
Priority date: 2011-03-29
Filing date: 2012-03-22
Publication date: 2013-09-18
Anticipated expiration: 2032-03-22
Also published as: TWI531348B; JP5862921B2; JP2012205670A; TW201242562A; CN103313638B; WO2012133128A1

Abstract

The purpose of the invention is to provide a heated toilet seat device that, when heating is initiated, heats the toilet seat quickly to a temperature that does not feel cold and which is capable of keeping the magnetic field from affecting the body after the user sits. A heated toilet seat device equipped with: a main toilet seat body with a heat-generating part obtained from an electric conductor; an induction heating coil that generates a magnetic field for induction-heating of the heat-generating part; a control part for controlling the passage of electric current to the induction heating coil; a human body-detecting part for detecting the presence of a human body; and a sitting action-detection part for detecting the sitting of a user on said main toilet seat body. The heated toilet seat device is characterized in that when the presence of a human body is detected by the human body-detecting part, said control part initiates a first heating mode of heating the main toilet seat body by passing electric current to the induction heating coil and, after the sitting action-detection part detects the sitting of the human body, switches to a second heating mode wherein the amount of current passing to the induction heating coil is smaller than the amount of current passed in the first heating mode.

Description

Closet seat warming device

Technical field

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

Background technology

Mode of heating as new warm toilet seat has proposed to adopt to the seat device of the induction heating mode of load coil supply high frequency electric current.Study the intensity in the magnetic field that under such induction heating mode, is produced by load coil to the influence degree that human body produces, also announced the size of the magnetic flux density that human body is not exerted an influence.

As the driving method that suppresses the eddy-current heating in the magnetic field of human body, work out and detect human body and then drive eddy-current heating and detect the method (patent documentation 1) of taking one's seat and then stopping eddy-current heating.But taking one's seat of generally using in warm toilet seat detected and is used as license and begins to carry out the local condition of cleaning action, by detecting the user's state of certain hour detection of determining to take one's seat of having taken one's seat.Thereby the user might be exposed to the leeway that this aspect in the magnetic field is improved in the certain hour that detects of determining from taking one's seat to take one's seat.

On the other hand, the impact that human body is produced in order to suppress magnetic field as the driving method of eddy-current heating, works out that detecting enters the room then drives eddy-current heating and detect the method (patent documentation 2) that exists human body then to stop eddy-current heating near toilet cover.But, by this driving method, although solved the problem that human body is exerted an influence in magnetic field of resulting from, also may exist to stop heating prematurely and toilet seat is not fully heated when the user takes one's seat situation.Therefore, in leeway that this aspect that allows the user produce unplessantness displeasure is improved.

On the other hand, for solve magnetic field on human body produce impact, the problem of toilet seat temperature, studied by being opened toilet cover by user oneself or special switch being operated and stopped eddy-current heating or make the energising amount drop to the method for the numerical value that does not have influence of magnetic field, if perhaps be not in the state that toilet seat is fully heated and stop eddy-current heating, thus the method that the toilet cover user that then do not open can't take one's seat.And, also studied report produce magnetic field is arranged, the inadequate situation of heating and the method that suppresses to take one's seat etc.But any method has all limited the use of warm toilet seat, stays to allow the user feel bad or inconvenient problem.

Patent documentation 1: the JP 2001-8859 of Japan communique

Patent documentation 2: the JP 2008-18114 of Japan communique

Summary of the invention

The present invention is based on such problem understanding and carries out, its purpose is to provide a kind of closet seat warming device that utilizes inductive heating principle, it can make toilet seat promptly be warming up to the temperature of not feeling ice-cold when beginning to heat, and magnetic field does not exert an influence to human body after taking one's seat simultaneously.

According to the present invention, a kind of closet seat warming device is provided, possess: the toilet seat body has the heating part that is made of electric conductor; Load coil produces the magnetic field of described heating part being carried out eddy-current heating; Control part, control is to the energising of described load coil; Body detecting part, the existence of human body; And the motion detection section of taking one's seat, detect the user to the action of taking one's seat of described toilet seat body, it is characterized by, described control part is as follows, when described body detecting part detects existing of human body, by begin to carry out the 1st heating mode of the described toilet seat body of heating to the energising of described load coil, after the described motion detection section of taking one's seat detects the action of taking one's seat of human body, be transitioned into to the energising amount of described load coil the 2nd heating mode less than energising amount under described the 1st heating mode.

According to form of the present invention, a kind of closet seat warming device that utilizes inductive heating principle is provided, it can make toilet seat promptly be warming up to the temperature of not feeling ice-cold when beginning to heat, and magnetic field does not exert an influence to human body after taking one's seat simultaneously.

Description of drawings

Fig. 1 is the pattern stereogram that illustration possesses the toilet-flushing apparatus of the related closet seat warming device of present embodiment.

Fig. 2 is the ideograph of the related closet seat warming device of expression present embodiment.

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

Fig. 4 is the flow chart of controlling by the eddy-current heating that control part carries out.

Fig. 5 is the figure of the order of the illustration action of taking one's seat from entering the room to and eddy-current heating action.

Fig. 6 is the time diagram of the concrete example of explanation intensification control.

Fig. 7 is the time diagram of the concrete example of explanation intensification control.

Fig. 8 is the time diagram of the concrete example of explanation intensification control.

Fig. 9 is the time diagram of the concrete example of explanation intensification control.

Figure 10 is the time diagram of other concrete examples of explanation intensification control.

Figure 11 is the time diagram of other concrete examples of explanation intensification control.

Figure 12 is the time diagram of other concrete examples of explanation intensification control.

Figure 13 is the time diagram of other concrete examples of explanation intensification control.

Figure 14 is the figure of the working time of illustration sensor.

Figure 15 is the figure that the information of illustration sensor is read in the time.

Figure 16 is the figure of illustration radio wave sensor.

Symbol description

The 10-toilet-flushing apparatus; The 100-closet seat warming device; The 200-toilet seat; The 220-high intensity light source; The 222-load coil; The 231-heating part; The 300-toilet cover; The 310-magnetic shield member; The 400-shell; The 410-control part; The 415-supply lines; The 441-detecting sensor of entering the room; 442-erect-position detecting sensor; 443-function license seating sensor; The 444-action sensor of taking one's seat; The 450-Water closet cover opening-closing apparatus; The local section that cleans of 460-; The 480-radio wave sensor; 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, possess: the toilet seat body has the heating part that is made of electric conductor; Load coil produces the magnetic field of described heating part being carried out eddy-current heating; Control part, control is to the energising of described load coil; Body detecting part, the existence of human body; And the motion detection section of taking one's seat, detect the user to the action of taking one's seat of described toilet seat body, it is characterized by, described control part is as follows, when described body detecting part detects existing of human body, by begin to carry out the 1st heating mode of the described toilet seat body of heating to the energising of described load coil, after the described motion detection section of taking one's seat detects the action of taking one's seat of human body, be transitioned into to the energising amount of described load coil the 2nd heating mode less than energising amount under described the 1st heating mode.

According to this closet seat warming device, owing to being transitioned into the 2nd heating mode because the motion detection section of taking one's seat detects the action of taking one's seat from the 1st heating mode, therefore can promptly heat toilet seat till before taking one's seat, under the state of taking one's seat, can suppress fully the impact that magnetic field produces the user.

In addition, according to a form of the present invention, a kind of closet seat warming device is provided, it is characterized by, the energising amount to described load coil under described the 2nd heating mode is to make the magnetic field that is produced by described load coil become the energising amount in the magnetic field that the human body that is seated on the toilet seat is not exerted an influence.

According to this closet seat warming device, owing to being transitioned into the 2nd heating mode because the motion detection section of taking one's seat detects the action of taking one's seat, so the user can take one's seat after the state that the magnetic field that positively is transitioned into by load coil generation does not exert an influence to the user.In addition, because user's the action of taking one's seat detects in the motion detection section of taking one's seat, therefore can before will being seated at toilet seat, the user heat toilet seat.Thus, can provide the user to take one's seat warm toilet seat that Shi Buhui feels ice-cold or feel hurt.

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, and after described body detecting part detected the existence of human body, the described motion detection section of taking one's seat did not detect the user and takes one's seat, and when described the 1st heating mode process certain hour, be transitioned into described the 2nd heating mode.

According to this closet seat warming device, owing to having time limit control in the 1st heating mode, therefore the problem that the temperature of toilet seat too rises in vain can not occur, the energy-saving effect of the ineffectual power consumption that can be inhibited.

In addition, according to a form of the present invention, provide a kind of closet seat warming device, it is characterized by, described the 2nd heating mode has: heating mode heats up described toilet seat body; And the insulation pattern, the temperature of described toilet seat body is kept certain, carry out described the 2nd heating mode during at last, carry out described insulation pattern.

According to this closet seat warming device, owing to possessing the insulation pattern, even therefore after the user takes one's seat, the toilet seat body also can keep certain temperature.Thus, even if the user is seated at the state continuance on the toilet seat for a long time, the temperature of toilet seat body can not descend yet, and can realize comfortable warm toilet seat.In addition, owing to can realize by induction heating mode intensification, the insulation of toilet seat body, therefore compare with the structure of these two modes of heat transfer mode of heating with using induction heating mode, can realize comfortable warm toilet seat by simple structure and simple control.

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 function and permit the test section of taking one's seat, it judges that action of executable function begins license the user is seated at toilet seat after, and described motion detection section and the described function of taking one's seat permitted the sensor of test section dual-purpose of taking one's seat.

According to this closet seat warming device, motion detection section is and doubles as the judgement that usually is used in the warm toilet seat and clean the take one's seat structure of test section of the function license that begins to permit owing to taking one's seat, therefore do not need to arrange a plurality of sensors, can a sensor be set for the appropriate location that sits in the user on the toilet seat, also can eliminate the difference of the precision of taking one's seat that the difference by setting position causes.

In addition, according to a form of the present invention, provide a kind of closet seat warming device, it is characterized by, before the license that test section judges that described cleaning begins is taken one's seat in the license of described function, the action of taking one's seat of the described motion detection section human body of taking one's seat.

According to this closet seat warming device, can detect the action before will take one's seat before judge cleaning license, when taking one's seat, the user can positively switch to the 2nd heating mode.Thus, heat till can be before will taking one's seat, the user feels ice-cold at the Shi Buhui that takes one's seat, and can take one's seat after positively being transitioned into the state that the magnetic field that produced by load coil do not exert an influence to the user simultaneously.

In addition, according to a form of the present invention, provide a kind of closet seat warming device, it is characterized by, the described sense cycle of motion detection section when Check processing of taking one's seat is shorter than described function and permits the sense cycle of test section when Check processing of taking one's seat.

According to this closet seat warming device, can positively eliminating under the state of magnetic field on the impact of user's generation that is produced by load coil, allow the user take one's seat.That is, the function of the common warm toilet seat license test section of taking one's seat detects the user and has taken one's seat to be judged to be behind the state of certain hour and take one's seat.Why like this, to clean for the mistake that prevents following occasion, the less and children that are difficult to detect such as the projected area of the motion detection of namely taking one's seat section or detecting the taking one's seat of short time when toilet and seat device are swept etc. in press the remote controller that is attached on the seat device etc. the mistake of cleaning when beginning switch clean.But, by this closet seat warming device, because sense cycle in the motion detection section of taking one's seat shortens, be not the judgement of the user takes one's seat after, carrying out therefore, but can detect the action of the taking one's seat action before of namely will taking one's seat.Thereby, can positively eliminating under the state of magnetic field on the impact of user's generation that is produced by load coil, allow the user take one's seat.

In addition, according to a form of the present invention, a kind of closet seat warming device is provided, it is characterized by, detect human body from the described motion detection section of taking one's seat and be less than from the described function license test section of taking one's seat and detect human body to detecting the number of processes of taking one's seat to being judged as the number of processes of taking one's seat.

According to this closet seat warming device, can positively eliminating under the state of magnetic field on the impact of user's generation that is produced by load coil, allow the user take one's seat.That is, the function of common warm toilet seat permits the test section of taking one's seat to take one's seat through being judged to be after the certain hour after the user takes one's seat.Why like this, to clean for the mistake that prevents following occasion, namely the and children that are difficult to detect less in the projected area of the motion detection section of taking one's seat etc. or detecting the taking one's seat of short time when toilet and seat device are swept etc. in press the remote controller that is attached on the seat device etc. the mistake of cleaning when beginning switch clean.By this closet seat warming device, tail off owing in the motion detection section of taking one's seat, judging the number of processes before taking one's seat, not the judgement of the user takes one's seat after, carrying out therefore, but can detect the action of the taking one's seat action before of namely will taking one's seat.Thereby, can positively eliminating under the state of magnetic field on the impact of user's generation that is produced by load coil, allow the user take one's seat.

In addition, according to a form of the present invention, provide a kind of closet seat warming device, it is characterized by, the velocity variations of the user on the vertical of described toilet seat body detects in the described motion detection section of taking one's seat.

According to this closet seat warming device, in a succession of action of using the toilet, by detecting the variation of the responsiveness on normal direction, thereby can positively capture from the top action that buttocks downwards moves, namely be seated at the so peculiar action of use toilet seat of toilet seat.Thus, can enter and take one's seat action and will contact state before the toilet seat by detecting the user, thereby switch to the 2nd heating mode.Thereby, can positively eliminating under the state of magnetic field on the impact of user's generation that is produced by load coil, allow the user take one's seat.

Below, with reference to figure embodiments of the present invention are described.And, in each figure, to the identical symbol of identical inscape mark and detailed suitably.

Fig. 2 is the ideograph of the related closet seat warming device of expression present embodiment, (a) is the pattern top view of observing closet seat warming device from the top, (b) is the pattern cutaway view at the section A-A shown in (a).And, in Fig. 2 (b), because the relation of explanation also shows the toilet cover that is in closed condition.

The related closet seat warming device 100 of present embodiment is arranged on the device on the Western-style toilet 800 of toilet-flushing apparatus 10, and it possesses: toilet seat 200; Toilet cover 300; And shell 400, can be opened and closed to support toilet seat 200 and toilet cover 300.Toilet cover 300 can be above covering toilet seat 200 under the state of closing.For example at the high intensity light source 220 of toilet seat 200 built-in generation high frequency electrics.And high intensity light source 220 also can be built in the shell 400.

The load coil 222 that will produce by the high frequency electric of supplying with from high intensity light source 220 magnetic field is arranged at toilet seat 200 or toilet cover 300.To be arranged at toilet seat 200 by the heating part 231 that the electric conductor that is heated by magnetic field induction consists of.More specifically, heating part 231 is because eddy current generates heat, and this eddy current is produced by the magnetic field induction that is produced by load coil 222.

The detecting sensor of will entering the room 441, erect-position detecting sensor 442, function license seating sensor 443 and the action sensor 444 of taking one's seat are arranged at shell 400.

The detecting sensor of entering the room 441 for example is thermoelectric pickup (Pyroelectric Sensor), detects the user and enters toilet (body detecting part).In shell 400, be provided with the Water closet cover opening-closing apparatus (not shown) that opens and closes toilet cover 300.That is, if the detecting sensor 441 of entering the room detects entering the room of user, then moving through Water closet cover opening-closing apparatus behind the certain hour, automatically open toilet cover 300.

Erect-position detecting sensor 442 for example is photoelectric sensor, measures the distance from the user, detects the assigned position that the user stand in the place ahead of Western-style toilet 800.If erect-position detecting sensor 442 detects the user and leaves more than the certain distance (for example 30cm) from toilet seat 200, then Water closet cover opening-closing apparatus moves, and automatically closes toilet cover 300.

And, except automatic shutter toilet cover 300 as described above, can also by the user manually or the user operation of button is opened and closed toilet cover 300.

Function license seating sensor 443 for example is photoelectric sensor, detects the state of action that the user is seated on the toilet seat 200 and can carries out the various functions of closet seat warming device 100.Function license seating sensor 443 is for example by carrying out light projector and be subjected to light with the common projection and accepted light window of erect-position detecting sensor 442.Whether the distance that function license seating sensor 443 is measured from the user detects the user and is close in the certain distance (for example 10cm), certain time-delay is set and signal that output detections arrives after detection.That is, function license seating sensor 443 signal that output detections arrives after the user is seated on the toilet seat 200 really.Decide after taking one's seat according to having or not of this signal and could carry out the action of spendable various functions.

The action sensor 444 of taking one's seat for example is photoelectric sensor, and the detection user is seated at the action (motion detection of taking one's seat section) on the toilet seat 200.Whether for example, the action sensor 444 of taking one's seat is measured the distance from the user, detect the user and be close in the certain distance (for example 10cm), time-delay is not set and signal that output detections arrives after detection.That is, the signal that action sensor 444 can the moment output detections before the user will be seated at toilet seat 200 arrives of taking one's seat.Switch the heating mode of toilet seat 200 according to this signal.

At this, also can and be provided with the function part as hygienic washing device in shell 400 inside.That is, shell 400 also can be built-in with and have towards the sanitary washing function part of the not shown guttation nozzle of the water spray such as " buttocks " that be sitting in the user on the toilet seat 200 etc.

In addition, also can suitably be provided with in shell 400 inside towards " buttocks " that be sitting in the user on the toilet seat 200 etc. and blow out warm braw and carry out dry " warm braw functions/drying " or " deodorizing unit " or various unit such as " indoor heating unit ".

In the middle of these various functions, the mechanism that should move after the user is seated at toilet seat 200 can move when the detected signal of function license seating sensor 443 outputs.

Shown in Fig. 2 (a), be provided with control part 410 in shell 400 inside.And, the electric power of being supplied with by commercial power (below, be called for convenience of explanation " commercial electric power ") be input in control part 410 and the high intensity light source 220.High intensity light source 220 generates high frequency electric according to the control signal of supplying with from control part 410.

Shown in Fig. 2 (b), toilet seat 200 has the framework 210 that forms toilet seat 200 profiles.Framework 210 is formed by the material that resin etc. has insulating properties.And framework 210 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 load coil 222, and the energising by the high frequency electric supplied with from high intensity light source 220 produces magnetic field.Load coil 222 is attached to top (inner face relative with seated surface) 210a of toilet seat 200 inside.And load coil 222 also can support by supported body.

The heating part 231 that generates heat because of eddy current is attached to top (seated surface) of toilet seat 200, and this eddy current is produced by the magnetic field induction that is produced by load coil 222.Perhaps, heating part 231 also can be arranged on framework 210 inside of toilet seat 200.Perhaps, heating part 231 also can be attached to the top 210a of toilet seat 200 inside.

As the material of heating part 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 use the ferromagnetic materials such as the large iron of resistance, stainless steel at heating part 231.And, when being arranged on heating part 231 above the toilet seat 200, more preferably the processing such as application, covering, film are implemented on the surface of heating part 231, in order to human body is not directly contacted with heating part 231.

Temperature sensor 240 is arranged at toilet seat 200.Temperature sensor 240 for example detects the temperature of heating part 231.And, for convenience of explanation, the temperature of heating part 231 is considered as equating with the temperature of the seated surface of toilet seat 200.In the present embodiment, the temperature that the temperature of the seated surface of toilet seat 200 also is called simply toilet seat 200.Detection signal by temperature sensor 240 detected temperature is sent to high intensity light source 220 and control part 410.

Connect control part 410 and high intensity light source 220 with supply lines 415.Supply with the low-frequency currents and the control signal of supplying with from control part 410 such as commercial electric power to high intensity light source 220 by supply lines 415.That is, the action of control part 410 control high intensity light sources 220.Supply lines 415 is compared the relative low low-frequency current of frequency to high intensity light source 220 supplies and from the high frequency electric of high intensity light source 220 outputs.High intensity light source 220 is transformed into high frequency electric according to the control signal of supplying with from control part 410 with low-frequency current.That is, high intensity light source 220 will be transformed into by the low-frequency current that supply lines 415 is supplied with the higher electric current of frequency (below, be called for convenience of explanation " high frequency electric ").

High frequency electric by high intensity light source 220 conversion flows to load coil 222.So, produce magnetic field by load coil 222.If produce magnetic field by load coil 222, then heating part 231 is because being generated heat by the eddy current of generation that this magnetic field is responded to.Therefore, the related closet seat warming device 100 of present embodiment can utilize inductive heating principle and promptly 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 necessarily toilet seat 200 to be incubated.Thereby, for example compare with the situation that heats the seated surface of toilet seat 200 by " armored heater ", " halogen heater ", " charcoal heater " constant resistance heating arrangements, can realize energy-saving.

As the stray field inhibition mechanism of the magnetic field that suppresses to produce because of eddy-current heating by the degree of toilet cover 300, for example the magnetic shield member 310 with ferromagnetic material is arranged at toilet cover 300.Magnetic shield member 310 is configured in and covers at least the place ahead of toilet seat 200 and the position of side under the state of closing toilet cover 300.If like this magnetic shield member 310 is arranged at toilet cover 300, then toilet cover 300 closing during when heating toilet seat 200 by eddy-current heating, can reduce the leakage magnetic flux from load coil 222.Especially owing to user's close toilet seat 200 in the place ahead or side from Western-style toilet 800 when entering the toilet, therefore by namely covering at least the place ahead of toilet seat 200 in the close direction of user and the position of side arranges magnetic shield member 310, thereby can effectively suppress leakage magnetic flux.

And, in the illustrated closet seat warming device 100 of Fig. 2, although be provided with load coil 222 in framework 210 inside of toilet seat 200, also can be in the framework of toilet cover 300, to be provided with load coil 222.In the framework of toilet cover 300, be provided with in the closet seat warming device 100 of load coil 222, under the state that toilet cover 300 is closed, produce magnetic field by load coil 222.Thus, the heating part 231 that is arranged at toilet seat 200 generates heat because of the eddy current that is produced by this magnetic field induction.In addition, also heating part 231 can be arranged at toilet cover 300, rather than be arranged at toilet seat 200.And in the following description, the structure that load coil 222 and heating part 231 are arranged at toilet seat 200 as an example.

That is, as shown in Figure 3, in the related closet seat warming device 100 of present embodiment, possess the structure that is arranged at toilet seat 200, be arranged at the structure of toilet cover 300 and be arranged at the structure of shell 400.

At toilet seat 200 high intensity light source 220, heating part 231, load coil 222 and temperature sensor 240 for example are set.

And, in the present embodiment, although in toilet seat 200, be provided with high intensity light source 220, also can be arranged in the shell 400.

It is that magnetic shield member 310 is arranged at toilet cover 300 that stray field is suppressed mechanism.

With control part 410; The detecting sensor 441 of entering the room; Erect-position detecting sensor 442; Function license seating sensor 443; The action sensor 444 of taking one's seat; And Water closet cover opening-closing apparatus 450 is arranged at shell 400.Water closet cover opening-closing apparatus 450 also can possess the mechanism that opens and closes toilet seat 200 except possessing the mechanism that opens and closes toilet cover 300.In addition, as required section 460 being cleaned in the part is arranged at shell 400.

Next, the control action of the eddy-current heating of control part 410 described.And, in the present embodiment, although the situation of the control action of the eddy-current heating that is undertaken by control part 410 is described, also can carries out same control action by the high frequency electric control part (control is to the part of the quantity delivered of load coil 222 supply high frequency electric currents) that is arranged in the high intensity light source 220.

At first, shown in step S101, control part 410 judges whether the detecting sensor 441 of entering the room detects the user and enter in the toilet.Shown in step S102, when the detecting sensor 441 of entering the room detected entering the room of user, control part 410 was carried out the 1st intensification control.In the 1st intensification control, beginning is being carried out this supply to load coil 222 supply high frequency electric currents within the 1st time of supplying with beginning.

Next, shown in step S103, control part 410 judges whether the supply of the high frequency electric that is undertaken by the 1st intensification control was passed through for the 1st time from supply begins.Shown in step S104, not through the 1st time the time, judge whether toilet cover 300 is opened.When toilet cover 300 is not opened, turn back to step S103.

Shown in step S105, from beginning, supply during through the 1st time, opening toilet cover 300 by the 1st the heat up supply of the high frequency electric that control carries out.That is, control part 410 sends the indication of opening toilet cover 300 to Water closet cover opening-closing apparatus 450.Water closet cover opening-closing apparatus 450 moves according to this indication, automatically opens toilet cover 300.

Shown in step S106, when toilet cover 300 was opened automatically, when perhaps toilet cover 300 is opened before through the 1st time (in step S104 be), control part 410 was transitioned into the 2nd control that heats up from the 1st control that heats up.The 2nd heats up controls is the control of carrying out controlling with the 1st intensification the intensification of the quantity delivered of comparing the high frequency electric that reduces the unit interval.

Next, shown in step S107, control part 410 judges whether the action sensor 444 of taking one's seat detects user's the action of taking one's seat.Shown in step S109, in when action of taking one's seat that detects the user, control part 410 is transitioned into the 3rd control that heats up from the 2nd control that heats up.

On the other hand, in when action of taking one's seat not detecting the user, enter into step S108.In step S108, control part 410 judge by the 2nd heat up the high frequency electric that control carries out supply whether from detecting human body through the 2nd time.Not through the 2nd time the time, continue to keep carrying out the 2nd intensification control, turn back to step S107.

On the other hand, shown in step S109, through the 2nd time the time, control part 410 heats up to control from the 2nd and is transitioned into the 3rd intensification control.That is, carrying out the 2nd intensification control period, detect the user take one's seat during action or during through the 2nd time, control part 410 is transitioned into the 3rd control that heats up from the 2nd control that heats up.

The 3rd heats up controls is the control of carrying out controlling with the 2nd intensification the intensification of the quantity delivered of comparing the high frequency electric that reduces the unit interval.

Next, shown in step S110, control part 410 judges whether the temperature of toilet seat 200 has reached predefined design temperature (for example comfort temperature).That is, control part 410 judges according to the detection signal of the temperature of temperature sensor 240 whether the temperature of toilet seat 200 has reached design temperature.When not reaching design temperature, control part 410 is proceeded the 3rd intensification control.On the other hand, shown in step S111, when reaching design temperature, control part 410 heats up to control from the 3rd and is transitioned into preservation and controlling.Thus, the temperature with toilet seat 200 remains comfort temperature.

Fig. 5 is that the illustration user is from entering the toilet to the figure of the order of the action of taking one's seat and eddy-current heating action.

The action that Fig. 5 (a) illustration user takes one's seat from entering the room to.

Fig. 5 (b) illustration is corresponding to the job order of the various sensors of the action of (a).

Fig. 5 (c) illustration is corresponding to the order to the load coil input electric power of the action of (a).

Fig. 5 (d) illustration is corresponding to the transformation of the magnetic flux density of the stray field of the action of (a).At this, magnetic flux density be under the state that the user does not take one's seat in the value with a certain distance from the position finding of closet seat warming device 100, under the state that the user has taken one's seat, be the value of measuring in the seated surface of toilet seat 200.

Fig. 5 (e) illustration represents the heating curve corresponding to the variations in temperature of the toilet seat of the action of (a).

At first, under untapped state, just by the detecting sensor 441 of the entering the room detection of entering the room.Do not detect under the state (untapped state) that enters the toilet in the detecting sensor 441 of entering the room, stop the electric power input to the electric power of load coil 222 input for stopping to control CT0() or Opportunity awaiting control for linear CTr(the temperature of toilet seat 200 is remained on the required electric power input of standby temperature).Stopping to control among the CT0, the magnetic flux density B0 in the magnetic field that leak in 200 outsides from load coil 222 to toilet seat is zero.In Opportunity awaiting control for linear CTr, magnetic flux density Br is very little.

The temperature T Hs of the toilet seat 200 when execution stops to control CT0 is roughly room temperature.In addition, the temperature of the toilet seat 200 when carrying out Opportunity awaiting control for linear CTr is standby temperature T Hr.

Next, when the detecting sensor 441 of entering the room detects the user and enters the toilet (constantly t0), the control part 410 control CT1 that will heat up to the power transition to the 1 of load coil 222 inputs.In the 1st intensification control CT1, although the magnetic flux density B1 in the magnetic field that leak in 200 outsides from load coil 222 to toilet seat is higher than magnetic flux density B0 and Br, less than the magnetic flux density Bref that becomes benchmark.

The moment t0 that detects from entering the room carries out the 1st control CT1 that heats up till the moment t1 through the 1st time.At moment t1, the temperature of toilet seat 200 rises to the 1st temperature T H1.

Next, at the moment t1 of the moment t0 that detects from entering the room through the 1st time, automatically open toilet cover 300.In addition, control part 410 will be transitioned into the 2nd intensification control CT2 from the 1st intensification control CT1 to the electric power of load coil 222 inputs.In the 2nd intensification control CT2, the high frequency electric quantity delivered of unit interval is lower than the 1st intensification control CT1.But because toilet cover 300 is opened, so the Magnetic Shielding Effectiveness of toilet cover 300 reduces.Thereby the magnetic flux density B2 in carrying out the 2nd intensification control CT2 is greater than magnetic flux density B1.But magnetic flux density B2 is less than the magnetic flux density Bref that becomes benchmark.

After opening toilet cover 300, the work of erect-position detecting sensor 442, function license seating sensor 443 and the action sensor 444 of taking one's seat since moment t '.Afterwards, the action that the user begins to take one's seat, the moment t2 before will taking one's seat is from the signal of action sensor 444 output detections to the action of taking one's seat of taking one's seat.Control part 410 receives from the signal of action sensor 444 outputs of taking one's seat and will be transitioned into the 3rd control CT3 that heats up from the 2nd control CT2 that heats up to the electric power of load coil 222 inputs.In the 3rd intensification control CT3, the high frequency electric quantity delivered of unit interval is lower than the 2nd intensification control CT2.

Even carrying out the 3rd value that magnetic flux density B3 among the control CT3 also can not exert an influence to human body under for the state that is seated at toilet seat 200 the user that heats up.

At the moment t2 that switches to the 3rd intensification control CT3 from the 2nd intensification control CT2, the temperature of toilet seat 200 has reached creeping chill critical-temperature TH2.In addition, control CT3 by carrying out the 3rd intensification, thereby the temperature of toilet seat 200 reaches comfort temperature TH3 from creeping chill critical-temperature TH2.

After the action sensor 444 of taking one's seat detected action before will taking one's seat, when function license seating sensor 443 detected the state of taking one's seat (constantly tw), various functions became spendable state.On the other hand, heating up control CT3 and the temperature of toilet seat 200 reaches the stage (constantly tg) of comfort temperature TH3 by carrying out the 3rd, control part 410 will be transitioned into preservation and controlling CTk from the 3rd control CT3 that heats up to the electric power of load coil 222 inputs.Thus, the temperature of toilet seat 200 is kept comfort temperature TH3.

Magnetic flux density during carrying out preservation and controlling CTk is Bk.In preservation and controlling CTk, owing to only need to keep the small magnitude of current of comfort temperature TH3 degree, so magnetic flux density Bk is less than magnetic flux density B3.

In the present embodiment, to detect the intensification control of carrying out during the action before will taking one's seat and be called the 1st heating mode detecting the action sensor 444 of taking one's seat of entering the room to from the detecting sensor 441 of entering the room, intensification control that will transition when the action sensor 444 of taking one's seat detects action before will taking one's seat (even also becoming not the intensification control of the magnetic flux density that can exert an influence to human body under the state that the user takes one's seat) is called the 2nd heating mode.

In example shown in Figure 5, the 1st intensification control CT1 and the 2nd intensification control CT2 are the 1st heating mode, and CT3 is controlled in the 3rd intensification and preservation and controlling CTk is the 2nd heating mode.

And, in the 2nd heating mode, also comprise the state of not switching on to load coil 222.At least comprise the 3rd at the 2nd heating mode and heat up control CT3 during with preservation and controlling CTk, last during carrying out the 2nd heating mode, execution preservation and controlling CTk.

By such intensification control, can be before the user will take one's seat till heating toilet seat 200, can not allow the user feel that when taking one's seat toilet seat 200 is ice-cold, the warm toilet seat that can not produce unplessantness displeasure can be provided.And, owing to before will taking one's seat, being transitioned into the 2nd heating mode, therefore after taking one's seat (after user's buttocks contacts the seated surface of toilet seat 200), really, be transitioned into the 2nd heating mode, can provide human body can not be exposed to environment in the magnetic field with high magnetic flux density, can allow the user use relievedly.

Next, the concrete intensification control of control part 410 described.

Fig. 6～Fig. 9 is the time diagram of the concrete example of explanation intensification control.

Fig. 6～time diagram shown in Figure 9 is illustrated in the control when being provided with the toilet cover with antimagnetic effect.

In each figure, (a) illustration heating curve, heating curve represents the variations in temperature with respect to the toilet seat of time.In addition, (b) expression with respect to the variation of the magnetic flux density of time.

Fig. 6 is illustrated in the time diagram that detects the intensification control when being seated at toilet seat 200 after the human body of entering the room etc. within the 2nd time.

At first, will be that the detecting sensor 441 of entering the room under the state of initial temperature TH0 detects the moment of human body as t0 in the temperature of toilet seat 200.The moment t0 that detects human body from the detecting sensor 441 of entering the room detects at the action sensor 444 of taking one's seat under the condition of closed condition of toilet cover 300 till the moment t1 through the 1st time T M1, and control part 410 is carried out the 1st control CT1 that heats up.

In the 1st intensification control CT1, supply with the high frequency electric that is used in the 1st time T M1, the temperature of toilet seat 200 being brought up to from initial temperature TH0 the 1st temperature T H1 to load coil 222.

At this, the detected value by current transformer (Current Transformer), the umber of pulse of switching transistor and ON time etc. obtain the quantity delivered of high frequency electric.

Control part 410 for example carries out the temperature control of toilet seat 200 by FEEDFORWARD CONTROL when the 1st heats up control CT1.That is, supply with the magnitude of current of the high frequency electric that is obtained by the relation (for example relational expression or list data) of the difference of the initial temperature TH0 of toilet seat 200 and the 1st temperature T H1 and the 1st time T M1 to load coil 222.

When the 1st heated up control CT1, the gradient of the heating curve of toilet seat was θ 1.

Heat up the 1st and to heat hastily among the control CT1, so that the temperature of toilet seat 200 reaches the 1st temperature T H1 below the creeping chill critical-temperature TH2 in the 1st time T M1.

At this, the 1st temperature T H1 is set in advance as the temperature below the creeping chill critical-temperature TH2.Even the 1st temperature T H1 is lower than creeping chill critical-temperature TH2, as long as toilet seat 200 reaches the 1st temperature T H1, then the user also just feels ice-cold a little when taking one's seat.

In addition, be B1 carrying out the 1st magnetic flux density that heats up during controlling CT1.At this, magnetic flux density B1 is the value of measuring under the condition of the state that the user does not take one's seat.Magnetic flux density B1 is less than the magnetic flux density Bref of the benchmark that becomes the machine that utilizes eddy-current heating.In the 1st intensification control CT1, although supply with larger high frequency electric in order to heat hastily to load coil 222, because toilet cover 300 is being closed, therefore the magnetic flux density to the outside leakage is less.

Next, when through the 1st time T M1, control part 410 is opened the control of toilet cover 300 automatically.And control part 410 carries out being transitioned into from the 1st intensification control CT1 the control of the 2nd intensification control CT2.

In the 2nd intensification control CT2, the high frequency electric quantity delivered of unit interval is lower than the 1st intensification control CT1.That is, when the 2nd heated up control CT2, the gradient θ 2 of the heating curve of toilet seat was less than the gradient θ 1 of the heating curve of the 1st intensification control CT1.

Control part 410 for example carries out the temperature control of toilet seat 200 by the FEEDFORWARD CONTROL identical with the 1st intensification control CT1 when the 2nd heats up control CT2.

Magnetic flux density during carrying out the 2nd intensification control CT2 is B2.At this, magnetic flux density B2 is the value of measuring under the condition of the state that the user does not take one's seat.Heat up among the control CT2 the 2nd, owing under the opened state of toilet cover 300, carrying out eddy-current heating, therefore become than carrying out the 1st the larger magnetic flux density B2 of magnetic flux density B1 when heating up control CT1.But in the 2nd intensification control CT2, because compare the gradient of heating curve with the 1st intensification control CT1 little, so the increase of magnetic flux density is small.And magnetic flux density B2 is less than the magnetic flux density Bref that becomes benchmark.

Afterwards, if in the time of the 2nd time T M2(from the moment t0 that detects human body to moment t2) in the user be seated at the moment td that toilet seat 200(takes one's seat), then control part 410 carries out being transitioned into the 3rd control that heats up control CT3 from the 2nd control CT2 that heats up.That is, when the action sensor 444 of taking one's seat detected the action of the user before will taking one's seat, control part 410 switched to the 3rd intensification control CT3 according to this testing result from the 2nd intensification control CT2.

In the 3rd intensification control CT3, the high frequency electric quantity delivered of unit interval is lower than the 2nd intensification control CT2.That is, when the 3rd heated up control CT3, the gradient θ 3 of the heating curve of toilet seat was less than the gradient θ 2 of the heating curve of the 2nd intensification control CT2.

The 3rd intensification control CT3 is the intensification control under the state that is seated at toilet seat 200 the user.Thereby, become very slow based on the intensification of gradient θ 3 with the degree of the imperceptible intensification rapidly of user.The temperature of toilet seat 200 reaches creeping chill critical-temperature TH2 during carrying out the 3rd intensification control CT3, and reaches predefined temperature (comfort temperature TH3).

Magnetic flux density during carrying out the 3rd intensification control CT3 is B3.At this, magnetic flux density B3 is the value of measuring under the condition of the state that the user takes one's seat.Heat up among the control CT3 the 3rd, owing to being to become the user to be seated at intensification control under the state of toilet seat 200, therefore become less than carrying out the 1st magnetic flux density B1 and the B2 of control CT1 and the 2nd when heating up control CT2 that heat up.Thereby even the eddy-current heating that carries out during the user is seated at toilet seat 200, leakage magnetic flux can not exert an influence to human body yet.

Control part 410 is carried out the 3rd intensification control CT3 till the temperature of toilet seat 200 reaches comfort temperature TH3.Carrying out the 3rd first half section that heats up during controlling CT3, control part 410 for example carries out the temperature control of toilet seat 200 by FEEDFORWARD CONTROL.On the other hand, during second half section, for example carry out the temperature control of toilet seat 200 by FEEDBACK CONTROL.Thus, can suppress the temperature of toilet seat 200 above the overshoot of comfort temperature TH3.

When the temperature of toilet seat 200 reaches constantly tg of comfort temperature TH3() time, control part 410 carries out being transitioned into the control of preservation and controlling CTk from the 3rd control CT3 that heats up.Thus, the temperature of toilet seat 200 is kept comfort temperature TH3.

Magnetic flux density during carrying out preservation and controlling CTk is Bk.In preservation and controlling CTk, owing to only need to keep the small magnitude of current of comfort temperature TH3 degree, so magnetic flux density Bk is very little.At this, magnetic flux density Bk is the value of measuring under the condition of the state that the user takes one's seat.

By such intensification control, can prevent that human body is exposed in the magnetic field with high magnetic flux density, entering the room the user does not simultaneously consume ineffectual electric power during taking one's seat and just can heat toilet seat.Thus, can carry out safely following toilet seat heating, the coolness in the time of the user can being taken one's seat when saving electric power is suppressed at Min..

Fig. 7 is illustrated in the time diagram that detects the intensification control when toilet cover 300 is opened within the 1st time after the human body of entering the room etc.

At first, will be that the detecting sensor 441 of entering the room under the state of initial temperature TH0 detects the moment of human body as t0 in the temperature of toilet seat 200.From the moment t0 that the detecting sensor 441 of entering the room detects human body, detect at the action sensor 444 of taking one's seat under the condition of closed condition of toilet cover 300, control part 410 is carried out the 1st control CT1 that heats up.The gradient of the heating curve of the toilet seat during the 1st intensification control CT1 is θ 1.In addition, be B1 carrying out the 1st magnetic flux density that heats up during controlling CT1.

At this, from moment t0 to through during the moment t1 of predefined the 1st time T M1, think that toilet cover 300 opens (constantly tp) by user's hand Move or user's indication.At this moment, control part 410 carries out being transitioned into from the 1st intensification control CT1 the control of the 2nd intensification control CT2.When the 2nd heated up control CT2, the gradient θ 2 of the heating curve of toilet seat was less than the gradient θ 1 of the heating curve of the 1st intensification control CT1.Magnetic flux density during carrying out the 2nd intensification control CT2 is B2.

Afterwards, if the user is seated at the moment td that toilet seat 200(takes one's seat in the 2nd time T M2), then control part 410 carries out being transitioned into from the 2nd intensification control CT2 the control of the 3rd intensification control CT3.When the 3rd heated up control CT3, the gradient θ 3 of the heating curve of toilet seat was less than the gradient θ 2 of the heating curve of the 2nd intensification control CT2.Magnetic flux density during carrying out the 3rd intensification control CT3 is B3.

Control part 410 is carried out the 3rd intensification control CT3 till the temperature of toilet seat 200 reaches comfort temperature TH3.When the temperature of toilet seat 200 reaches constantly tg of comfort temperature TH3() time, control part 410 carries out being transitioned into the control of preservation and controlling CTk from the 3rd control CT3 that heats up.Thus, the temperature of toilet seat 200 is kept comfort temperature TH3.Magnetic flux density during carrying out preservation and controlling CTk is Bk.

By such intensification control, even beginning relatively moment toilet cover 300 early when opening from entering the toilet, can prevent that also human body is exposed in the magnetic field with high magnetic flux density, simultaneously enter the toilet the user and do not consume ineffectual electric power during take one's seat and just can heat toilet seat.Thus, can carry out safely following toilet seat heating, the coolness in the time of the user can being taken one's seat when saving electric power is suppressed at Min..

Fig. 8 is the time diagram that is illustrated in the intensification control when taking one's seat simultaneously with the 2nd time.

At first, will be that the detecting sensor 441 of entering the room under the state of initial temperature TH0 detects the moment of human body as t0 in the temperature of toilet seat 200.The moment t0 that detects human body from the detecting sensor 441 of entering the room detects at the action sensor 444 of taking one's seat under the condition of closed condition of toilet cover 300 till the moment t1 through the 1st time T M1, and control part 410 is carried out the 1st control CT1 that heats up.The gradient of the heating curve of the toilet seat when the 1st heats up control CT1 is θ 1.In addition, be B1 carrying out the 1st magnetic flux density that heats up during controlling CT1.

If carry out the 1st intensification control CT1 with the 1st time T M1, then the temperature of toilet seat 200 reaches the 1st temperature T H1.When through the 1st time T M1, control part 410 is opened the control of toilet cover 300 automatically.And control part 410 carries out being transitioned into from the 1st intensification control CT1 the control of the 2nd intensification control CT2.When the 2nd heated up control CT2, the gradient θ 2 of the heating curve of toilet seat was less than the gradient θ 1 of the heating curve of the 1st intensification control CT1.Magnetic flux density during carrying out the 2nd intensification control CT2 is B2.

If carry out the 2nd intensification control CT2 with the 2nd time T M2, then the temperature of toilet seat 200 reaches creeping chill critical-temperature TH2.And if be seated at toilet seat (constantly t2=td) the moment t2 user through the 2nd time T M2, then control part 410 carries out being transitioned into from the 2nd intensification control CT2 the control of the 3rd intensification control CT3.When the 3rd heated up control CT3, the gradient θ 3 of the heating curve of toilet seat was less than the gradient θ 2 of the heating curve of the 2nd intensification control CT2.Magnetic flux density during carrying out the 3rd intensification control CT3 is B3.

When the user takes one's seat, because the temperature of toilet seat 200 has reached creeping chill critical-temperature TH2, therefore can not make the user feel ice-cold.

By such intensification control, toilet cover 300 is opened and when being seated at toilet seat 200 with average time automatically after entering the toilet, can prevent that human body is exposed in the magnetic field with high magnetic flux density, not consume ineffectual electric power simultaneously and just toilet seat can be heated to creeping chill critical-temperature TH2.Thus, can carry out safely when saving electric power, can not making the user to feel ice-cold toilet seat heating.

Fig. 9 is the time diagram that is illustrated in the intensification control when taking one's seat after the 2nd time.

If carry out the 2nd intensification control CT2 with the 2nd time T M2, then the temperature of toilet seat 200 reaches creeping chill critical-temperature TH2.And at the moment t2 through the 2nd time T M2, control part 410 carries out being transitioned into from the 2nd intensification control CT2 the control of the 3rd intensification control CT3.When the 3rd heated up control CT3, the gradient θ 3 of the heating curve of toilet seat was less than the gradient θ 2 of the heating curve of the 2nd intensification control CT2.Magnetic flux density during carrying out the 3rd intensification control CT3 is B3.

When the user was seated at toilet seat 200 through the 2nd time T M2 and during execution the 3rd intensification control CT3, control part 410 continued to keep carrying out the 3rd intensification and controls CT3.Till reaching comfort temperature TH3, the temperature of toilet seat 200 proceeds the 3rd intensification control CT3.

And, when the temperature of toilet seat 200 reaches constantly tg of comfort temperature TH3() time, control part 410 carries out being transitioned into the control of preservation and controlling CTk from the 3rd control CT3 that heats up.Thus, the temperature of toilet seat 200 is kept comfort temperature TH3.Magnetic flux density during carrying out preservation and controlling CTk is Bk.

By such intensification control, even thereby toilet cover 300 is opened and when being seated at toilet seat 200 with the time that is later than average time automatically after entering the toilet, can prevent that also human body is exposed in the magnetic field with high magnetic flux density, not consume ineffectual electric power simultaneously and just toilet seat can be heated to creeping chill critical-temperature TH2.Thus, can carry out safely when saving electric power, can not making the user to feel ice-cold toilet seat heating.

Next, other examples that the concrete intensification of control part 410 being carried out is controlled describe.

Figure 10～Figure 13 is the time diagram of other concrete examples of explanation intensification control.

Control when Figure 10～time diagram shown in Figure 13 is illustrated in toilet cover and does not have antimagnetic effect or be not provided with toilet cover.

In each figure, (a) illustration represents the heating curve with respect to the variations in temperature of the toilet seat of time.In addition, (b) expression with respect to the variation of the magnetic flux density of time.

Figure 10 is the time diagram that is illustrated in the intensification control when taking one's seat simultaneously with the 2nd time.

At first, will be that the detecting sensor 441 of entering the room under the state of initial temperature TH0 detects the moment of human body as t0 in the temperature of toilet seat 200.The moment t0 that detects human body from the detecting sensor 441 of entering the room is till the moment t2 through the 2nd time T M2, and control part 410 is carried out the 2nd control CT2 that heats up.The gradient of the heating curve of the toilet seat when the 2nd heats up control CT2 is θ 2 '.In addition, be B2 ' carrying out the 2nd magnetic flux density that heats up during controlling CT2.Magnetic flux density B2 ' is greater than magnetic flux density B2.Why like this, to be because fail to obtain the antimagnetic effect of toilet cover 300.But magnetic flux density B ' is less than the magnetic flux density Bref that becomes benchmark.

If carry out the 2nd intensification control CT2 with the 2nd time T M2, then the temperature of toilet seat 200 reaches comfort temperature TH3.And if be seated at toilet seat (constantly t2=td) the moment t2 user through the 2nd time T M2, then control part 410 carries out being transitioned into from the 2nd intensification control CT2 the control of preservation and controlling CTk.Thus, the temperature of toilet seat 200 is kept comfort temperature TH3.Magnetic flux density during carrying out preservation and controlling CTk is Bk.

By such intensification control, when after entering the toilet, being seated at toilet seat 200 with average time, can prevent that human body is exposed in the magnetic field with high magnetic flux density, do not consume ineffectual electric power simultaneously and just toilet seat can be heated to comfort temperature TH3.Thus, can carry out safely when saving electric power, can not making the user to feel ice-cold toilet seat heating.

Figure 11 is the time diagrams that are illustrated in other controls that heat up when taking one's seat simultaneously with the 2nd time.

At first, will be that the detecting sensor 441 of entering the room under the state of initial temperature TH0 detects the moment of human body as t0 in the temperature of toilet seat 200.The moment t0 that detects human body from the detecting sensor 441 of entering the room is till the moment t2 through the 2nd time T M2, and control part 410 is carried out the 2nd control CT2 that heats up.The gradient of the heating curve of the toilet seat when the 2nd heats up control CT2 is θ 2 ' '.Magnetic flux density B2 ' ' is less than magnetic flux density B2 '.

If carry out the 2nd intensification control CT2 with the 2nd time T M2, then the temperature of toilet seat 200 reaches creeping chill critical-temperature TH2.And if be seated at toilet seat (constantly t2=td) the moment t2 user through the 2nd time T M2, then control part 410 carries out being transitioned into from the 2nd intensification control CT2 the control of the 3rd intensification control CT3.When the 3rd heated up control CT3, the gradient θ 3 of the heating curve of toilet seat was less than the gradient θ 2 ' ' of the heating curve of the 2nd intensification control CT2.Magnetic flux density during carrying out the 3rd intensification control CT3 is B3.

By such intensification control, when after entering the toilet, being seated at toilet seat 200 with average time, can prevent that human body is exposed in the magnetic field with high magnetic flux density, not consume ineffectual electric power simultaneously and just toilet seat can be heated to creeping chill critical-temperature TH2.Thus, can carry out safely when saving electric power, can not making the user to feel ice-cold toilet seat heating.

And, in Figure 10 and the illustrated time diagram of Figure 11, although represented the situation of in the 2nd time T M2 process, taking one's seat, in the situation that the 2nd time T M2 through after take one's seat, also with the control that heats up of identical time.

Figure 12 is the time diagram that is illustrated in the intensification control when the 2nd time, process was taken one's seat before.

At first, will be that the detecting sensor 441 of entering the room under the state of initial temperature TH0 detects the moment of human body as t0 in the temperature of toilet seat 200.The moment t0 that detects human body from the detecting sensor 441 of entering the room is till the moment t2 through the 2nd time T M2, and control part 410 is carried out the 2nd control CT2 that heats up.The gradient of the heating curve of the toilet seat when the 2nd heats up control CT2 is θ 2 '.Magnetic flux density is B2 '.

Afterwards, if the user is seated at the moment td that toilet seat 200(takes one's seat in the 2nd time T M2), then control part 410 carries out being transitioned into from the 2nd intensification control CT2 the control of the 3rd intensification control CT3.When the 3rd heated up control CT3, the gradient θ 3 of the heating curve of toilet seat was less than the gradient θ 2 ' of the heating curve of the 2nd intensification control CT2.Magnetic flux density during carrying out the 3rd intensification control CT3 is B3.

By such intensification control, even when after entering the toilet, taking one's seat with the time relatively early, can prevent that also human body is exposed in the magnetic field with high magnetic flux density, enter into the toilet during take one's seat from the user simultaneously, not consume ineffectual electric power and just can heat toilet seat.Thus, the coolness in the time of can carrying out safely the user can being taken one's seat when saving electric power is suppressed at minimal toilet seat heating.

Figure 13 is the time diagrams that are illustrated in other controls that heat up when the 2nd time, process was taken one's seat before.

At first, will be that the detecting sensor 441 of entering the room under the state of initial temperature TH0 detects the moment of human body as t0 in the temperature of toilet seat 200.The moment t0 that detects human body from the detecting sensor 441 of entering the room is till the moment t2 through the 2nd time T M2, and control part 410 is carried out the 2nd control CT2 that heats up.The gradient of the heating curve of the toilet seat when the 2nd heats up control CT2 is θ 2 ' '.Magnetic flux density is that B2 ' ' is less than magnetic flux density B2 '.

Afterwards, if the user is seated at the moment td that toilet seat 200(takes one's seat in the 2nd time T M2), then control part 410 carries out being transitioned into from the 2nd intensification control CT2 the control of the 3rd intensification control CT3.When the 3rd heated up control CT3, the gradient θ 3 of the heating curve of toilet seat was less than the gradient θ 2 ' ' of the heating curve of the 2nd intensification control CT2.Magnetic flux density during carrying out the 3rd intensification control CT3 is B3.

By such intensification control, even thereby when after entering the toilet, taking one's seat with the time relatively early, can prevent that also human body is exposed in the magnetic field with high magnetic flux density, enter into the toilet during take one's seat from the user simultaneously, not consume ineffectual electric power and just can heat toilet seat.Thus, the coolness in the time of can carrying out safely the user can being taken one's seat when saving electric power is suppressed at minimal toilet seat heating.

Next, the detection of function license seating sensor and the action sensor of taking one's seat described.

Figure 14 is the figure of the working time of illustration sensor.

In Figure 14 (a) illustration the working time of function license seating sensor, in Figure 14 (b) illustration the working time of the action sensor of taking one's seat.

That is, shown in Figure 14 (a), function license seating sensor 443 each cycle ST1 carry out work.For example, when having used photoelectric sensor as function license seating sensor 443, each should carry out light projector by cycle ST1.

On the other hand, shown in Figure 14 (b), action sensor 444 each the cycle ST2 that take one's seat carry out work.Cycle ST2 is shorter than cycle ST1.For example, making cycle ST2 is 1/2 of cycle ST1.Thus, action sensor 444 and the function license seating sensor 443 of taking one's seat is compared and can earlier be detected the action of taking one's seat.

And, when the work period that makes the action sensor 444 of taking one's seat is shorter than the work period of function license seating sensor 443, also can make 1 time working time of the action sensor 444 of taking one's seat be shorter than 1 time the working time that function is permitted seating sensor 443.Thus, can prolong the service life of sensor.

At this, function is permitted seating sensor 443 and taken one's seat action sensor 444 also can sensor of dual-purpose.At this moment, detect by the detecting sensor 441 of entering the room enter the room after, work period of sensor is changed to ST2 and the detection of taking one's seat from ST1, be transitioned into afterwards the 2nd heating mode, afterwards work period of sensor is returned to ST1 from ST2 and gets final product.

By function license seating sensor 443 and the sensor of action sensor 444 dual-purposes of taking one's seat, do not need to arrange a plurality of sensors thereby become.In addition, can be for the optimal location settings sensor that sits in the user on the toilet seat 200, can eliminate taking one's seat that difference because of setting position occurs and detect the difference of rule.

In Figure 15 (a) illustration the information of function license seating sensor read in the time, in Figure 15 (b) illustration the information of the action sensor of taking one's seat read in the time.

Namely, shown in Figure 15 (a), for function license seating sensor 443, in 1 time duration of work, reach from the time SP2 of work beginning elapsed time SPT2 at the time SP1 from work beginning elapsed time SPT1, control part 410 reads the output signal from function license seating sensor 443.Information about function license seating sensor 443 for example detects in the situation of human body at continuous 4 times time SP1～SP4, and control part 410 is judged into the function that can carry out after taking one's seat.

Shown in Figure 15 (b), for the action sensor 444 of taking one's seat, also in 1 time duration of work, reach from the time SP2 of work beginning elapsed time SPT2 at the time SP1 from work beginning elapsed time SPT1, control part 410 reads the output signal from function license seating sensor 443.But about the information of the action sensor 444 of taking one's seat, control part 410 is judged the action of taking one's seat with the number of processes that is less than function license seating sensor 443.For example, in the situation that continuous 2 times time SP1, SP2 detect human body, judge into and carried out the action of taking one's seat.And, although also can judge by 1 time time, consider from preventing the viewpoint that error detection occurs because of signal interference etc., preferred more than 2 times.

At this, about above-mentioned reading the time, even in the situation that function permits seating sensor 443 and the sensor of action sensor 444 dual-purposes of taking one's seat also can be suitable for.At this moment, detect by the detecting sensor 441 of entering the room enter the room after, in the duration of work of sensor, the phase judgement that detects human body at continuous 2 times time SP1, the SP2 action of taking one's seat also detects the phase judgement of human body for carrying out the function after taking one's seat at 2 times time SP3, the SP4 of ining succession afterwards.

Next, other examples of the action sensor 444 of taking one's seat described.

In the above-mentioned action sensor 444 of taking one's seat that has illustrated, although understand the example that uses photoelectric sensor, but as the action sensor 444 of taking one's seat, also can example other sensors as electrostatic transducer or radio wave sensor except the photoelectric sensor.

Figure 16 is the figure of illustration radio wave sensor.

Figure 16 (a) is the general block diagram of radio wave sensor.Figure 16 (b) is the figure of the output waveform of illustration radio wave sensor.

Shown in Figure 16 (a), radio wave sensor 480 possesses transtation mission circuit 481, branching portion 482, transmission antenna 483, reception antenna 484 and mixting circuit 485.

This radio wave sensor 480 is the sensors that utilize Doppler's effect, at branching portion 482 letter signal that transtation mission circuit 481 sends is branched to transmission antenna 483 and mixting circuit 485, for example sends electric wave WV1 based on microwave from transmission antenna 483.

This electric wave WV1 meets human body HM and the received antenna 484 of the electric wave WV2 that reflects receives, and is sent to mixting circuit 485.In mixting circuit 485, extract out the reception signal at the letter signal of branching portion 482 branches and the electric wave WV2 that is received by reception antenna 484 is carried out mixing and the differential signal that obtains, in amplification circuit 486, carry out after the amplification as sensor output SV.

In Figure 16 (b) illustration with respect to the waveform of the sensor of time output SV.At this, show the wave form varies of the sensor output SV till taking one's seat from entering the room to.Shown in Figure 16 (b), when the user opens the door of toilet, sensor output SV SG1 in wave shape.Next, as user during near toilet seat (closet), sensor output SV SG2 in wave shape.Next, when the user turns round towards toilet seat, sensor output SV SG3 in wave shape.Next, when the user undresses, sensor output SV SG4 in wave shape.Next, in user's the action of taking one's seat, sensor output SV SG5 in wave shape.And, when the user continues to take one's seat, sensor output SV SG6 in wave shape.

Waveform SG1～SG6 corresponding to user's action has respectively feature.That is, there are the low situation of the frequency band of waveform and high situation during the action according to the user.This results from user's the variation of responsiveness.Thereby, by being carried out signal, the variation of this sensor output SV processes, the feature that can extract waveform SG1～SG6 out, and according to the action that is categorized as which waveform SG1～SG6 and differentiates the user.

Such radio wave sensor 480 is being utilized as when taking one's seat action sensor 444, can judging by extracting waveform SG5 out user's the action of taking one's seat.For example, the take one's seat waveform SG5 of action compares amplitude large (translational speed is fast) with waveform SG1～SG4, the SG6 of other actions.Utilize this feature and extract waveform SG5 out, detect the action of taking one's seat.In the stage of the waveform SG5 of the output of extracting sensor SV, the intensification control of the toilet seat 200 that is undertaken by control part 410 is transitioned into the 2nd heating mode.

At this, when using radio wave sensor 480, the transmit direction of electric wave WV1 is with respect to toilet seat 200 is vertical.That is, in a succession of action of using the toilet, in the action of taking one's seat, exist from above towards below the so distinctive action of mobile buttocks.Namely, because the waveform SG1～SG4 of waveform SG5 and other actions in the action of taking one's seat, that SG6 compares amplitude is large, therefore be with respect to toilet seat 200 by the transmit direction that makes electric wave WV1 and be vertical, thereby can further improve the signal strength signal intensity of the action of taking one's seat and positively detect user's the action of taking one's seat.

And, in aforesaid radio wave sensor 480, the detecting sensor of entering the room 441, erect-position detecting sensor 442, function license seating sensor 443 and the also dual-purpose all of action sensor 444 of taking one's seat.That is and since can differentiate by waveform SG1～SG6 that sensor is exported SV the user from entering the action of toilet till take one's seat, therefore also can obtain the needed output signal of these sensors by extracting each waveform SG1～SG6 out.At this moment, in the middle of the part (signal processing circuit, signal processing algorithm etc.) of the sensor output SV that processes radio wave sensor 480, the part of extracting waveform SG1 out becomes body detecting part, and the part of extracting waveform SG5 out becomes the motion detection section of taking one's seat.

As described above, according to present embodiment, enter the toilet the user and do not consume ineffectual electric power and human body is exposed in the magnetic field with high magnetic flux density during take one's seat and just can heat toilet seat.Thus, be the closet seat warming device 100 that has utilized inductive heating principle, can when beginning to heat, make toilet seat promptly be warming up to the temperature of not feeling 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.

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, a kind of closet seat warming device is provided, it is the closet seat warming device that utilizes inductive heating principle, can make toilet seat promptly be warming up to the temperature of not feeling ice-cold when beginning to heat, magnetic field does not exert an influence to human body after taking one's seat simultaneously.

Claims

1. closet seat warming device possesses:

The toilet seat body has the heating part that is made of electric conductor;

Load coil produces the magnetic field of described heating part being carried out eddy-current heating;

Control part, control is to the energising of described load coil;

Body detecting part, the existence of human body;

And the motion detection section of taking one's seat, detect the user to the action of taking one's seat of described toilet seat body,

It is characterized by, described control part is as follows,

When described body detecting part detects existing of human body, begin to carry out the 1st heating mode of the described toilet seat body of heating by switching on to described load coil,

After the described motion detection section of taking one's seat detects the action of taking one's seat of human body, be transitioned into to the energising amount of described load coil the 2nd heating mode less than energising amount under described the 1st heating mode.

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

The energising amount to described load coil under described the 2nd heating mode is to make the magnetic field that is produced by described load coil become the energising amount in the magnetic field that the human body that is seated on the toilet seat is not exerted an influence.

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

Described control part is as follows,

After described body detecting part detected the existence of human body, the described motion detection section of taking one's seat did not detect the user and takes one's seat, and when described the 1st heating mode process certain hour, was transitioned into described the 2nd heating mode.

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

Described the 2nd heating mode has: heating mode heats up described toilet seat body; And the insulation pattern, the temperature maintenance of described toilet seat body is certain,

Carry out described the 2nd heating mode during at last, carry out described insulation pattern.

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

Also possess function and permit the test section of taking one's seat, it judges that action of executable function begins license after the user is seated at toilet seat,

Described motion detection section and the described function license of the taking one's seat sensor of test section dual-purpose of taking one's seat.

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

Before the license that test section judges that described cleaning begins is taken one's seat in the license of described function, the action of taking one's seat of the described motion detection section human body of taking one's seat.

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

The described sense cycle of motion detection section when Check processing of taking one's seat is shorter than described function and permits the sense cycle of test section when Check processing of taking one's seat.

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

Detecting human body from the described motion detection section of taking one's seat is less than from the described function license test section of taking one's seat and detects human body to detecting the number of processes of taking one's seat to being judged as the number of processes of taking one's seat.

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

The velocity variations of the user on the vertical of described toilet seat body detects in the described motion detection section of taking one's seat.