JP2009285307A - Heated toilet seat device and temperature control method for same - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a heated toilet seat device including a seat surface heating unit configured to generate heat by electromagnetic induction and disposed on the surface of a toilet seat, conducting proper temperature control by accurately estimating the temperature of the seat surface heating unit T. <P>SOLUTION: The seat surface heating unit T is disposed on the outer surface of a surface material 3 of a toilet seat 1, a reference heating unit Tx and a temperature sensor 20 are provided on the inner surface, and the relationship between the temperature of the seat surface heating unit T when an induction coil U is energized and the temperature of the reference heating unit Tx is obtained in advance. The energizing amount to the induction coil U is controlled so that the seat surface heating unit Tx reaches a preset temperature by a toilet seat side control part C2, whereby the temperature of the seat surface heating unit T can be adjusted to a predetermined value. When a room temperature sensor 21 is provided for measuring the ambient temperature in the periphery of the toilet seat, the energizing amount to the induction coil is increased and decreased based on the degree of the ambient temperature. The temperature setting of the seat surface heating unit can be suitably controlled based on a difference in ambient temperature according to seasons. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a heating toilet seat device in which a heating element that generates heat by electromagnetic induction is disposed on the toilet seat surface, and the temperature of the heating element is estimated relatively accurately without directly detecting the temperature of the heating element, and appropriate temperature control is performed. It is related to the technology that made it possible.

  Patent Document 1 discloses a technique for heating the toilet seat surface by an induction heating method. In the heated toilet seat of Patent Document 1, a heating element made of aluminum foil is arranged on the surface of the surface material constituting the seating portion of the toilet seat, and an induction coil is arranged on the back surface side of the surface material. It is described that the toilet seat surface can be warmed in a short time by energizing the induction coil and induction heating the heating element.

JP 2001-8859 A

  The heating element disposed on the surface of the toilet seat is heated by electromagnetic induction, and since it takes advantage of the fact that it is possible to wash the toilet seat, for example, since wiring is not necessary, it is usually avoided to directly attach a temperature sensor. Therefore, Patent Document 1 employs a configuration in which a thermistor is disposed on the back surface side of the surface material of the heating toilet seat and a thermistor is disposed, and the temperature of the heating element disposed on the toilet seat surface is detected by this thermistor. Therefore, since the heating element and the thermistor are not in direct contact, the thermistor detection operation cannot follow the rapid temperature rise of the heating element when energization of the induction coil is started. I could not know the exact temperature of my body. Therefore, in the past, there was a problem that it was difficult to properly control the amount of power applied to the induction coil required to raise the toilet seat surface temperature to the target temperature, and as a result, the toilet seat surface became too hot or cold in some cases. As a result, the user may feel uncomfortable.

  The present invention makes it possible to estimate the temperature of a heating element relatively accurately and to perform appropriate temperature control without attaching a temperature sensor to the heating element disposed on the surface of the toilet seat in an induction heating type heating toilet seat device. It aims at providing the means to do. For this purpose, the heating toilet seat apparatus adopted by the present invention is characterized in that, as described in claim 1, a seating surface heating element made of a conductive material is provided on the outside of the surface material constituting the seating portion of the toilet seat. In a heated toilet seat device that is arranged to inductively heat a seating surface heating element by energizing an induction coil arranged inside the toilet seat, a reference heating element and a reference heating that are induction-heated by the induction coil inside the toilet seat A temperature sensor that detects the temperature of the body, a control unit that controls the amount of current supplied to the induction coil is provided inside the toilet seat or the toilet seat support, and the control unit is based on a temperature signal output from the temperature sensor. In other words, the energization amount to the induction coil is controlled so that the temperature of the reference heating element becomes a set value.

  In the above, the seating surface heating element may be formed of a metal thin film such as metal plating or aluminum foil, or a thin layer formed of a synthetic resin in which metal particles or metal pieces are mixed. The reference heating element is preferably made of the same material as the seating surface heating element, but other materials may be used as long as induction heating is possible. The thickness and size of the reference heating element are preferably equal to those of the seating surface heating element, but are not necessarily limited. The type of the temperature sensor is not particularly limited, but a thermocouple can be used in addition to the thermistor. The means for supplying power to the induction coil is provided by providing the toilet seat support with a primary coil that receives power supplied from the power supply unit, and providing a secondary coil that can be energized to the induction coil on the toilet seat and energizing the primary coil. A configuration in which electric power is supplied to the induction coil through the secondary coil by a mutual induction action is conceivable.

  The heating toilet seat device according to the present invention is provided with a room temperature sensor for detecting the ambient temperature around the toilet seat, as described in claim 2, in order to more accurately control the temperature of the heating element. Based on the output temperature signal and the ambient temperature signal output from the room temperature sensor, the energization amount to the induction coil can be controlled so that the temperature of the reference heating element becomes a set value.

  The room temperature sensor may be mounted on the toilet seat support side that supports the toilet seat in a swingable manner, in addition to being positioned at an appropriate position of the toilet seat and not affected by the heating element. In this case, the signal transmission to the control unit in the toilet seat may use a coil constituting the power feeding device or use an optical communication means.

  In addition, about a reference | standard heat generating body, as described in Claim 3, the aspect which comprises the same material as a seating surface heat generating body, and arrange | positions on the inner surface of a surface material can be considered. In this case, the reference heating element may be arranged in the entire region corresponding to the seating surface heating element on the inner surface of the surface material, or may be arranged only in a part of the inner surface.

  Alternatively, as described in claim 4, the reference heating element is made of the same material as the seating surface heating element, and is disposed on the bottom plate material of the toilet seat, and the distance from the induction coil to the seating surface heating element and the induction coil The distance to the reference heating element may be set substantially equal.

  On the other hand, the seating surface heating element can be formed of a metal thin film as described in claim 5. Further, as described in claim 6, a heat insulating layer may be formed between the seating surface heating element and the surface material. As the heat insulating layer, a foam of synthetic resin such as urethane foam can be considered.

  The present invention provides a useful temperature control method in the heating toilet seat device. The feature of the present invention is that, as described in claim 7, a seating surface heating element made of a conductive material is arranged outside the surface material constituting the seating portion of the toilet seat, and the induction coil arranged inside the toilet seat is energized. In the heating toilet seat device adapted to induction-heat the seating surface heating element, a reference heating element that is induction-heated by an induction coil and a temperature sensor that detects the temperature of the reference heating element are provided inside the toilet seat, Alternatively, a control unit for controlling the energization amount to the induction coil is provided inside the toilet seat support, and the temperature of the reference heating element when the seating surface heating element reaches a predetermined temperature by energizing the induction coil is set in advance. The control unit controls the energization amount to the induction coil so that the temperature of the reference heating element detected by the temperature sensor becomes the set temperature.

  In the above method, the method for obtaining the set temperature of the reference heating element when the seating surface heating element reaches a predetermined temperature may be obtained experimentally, theoretically from the structure of the member, etc. It is also possible to use together.

  Further, in the temperature control method, in order to perform more efficient temperature control, a room temperature sensor for detecting the ambient temperature around the toilet seat is provided as described in claim 8, and the control unit is based on the ambient temperature detected by the room temperature sensor. It is conceivable to control the amount of current supplied to the induction coil.

  This temperature control method is based on the knowledge that the amount of energization necessary to bring the seating surface heating element to a predetermined temperature in a certain time varies depending on the atmospheric temperature. That is, when the room temperature is low, such as in the cold season, a large amount of heat is required for the seating surface heating element to reach a predetermined temperature, so the amount of current supplied to the induction coil is increased. In the non-cold season, since the difference between the room temperature and the initial temperature of the seating surface heating element is small, the amount of current supplied to the induction coil is conservative. Further, when the room temperature is equal to or higher than the predetermined temperature of the seating surface heating element, such as in summer, it is not necessary to energize the induction coil. By providing a room temperature sensor that detects the ambient temperature, the above control of the energization amount can be automatically performed. The relationship between the ambient temperature and the energization amount is obtained in advance.

  According to the heating toilet seat device (Claim 1) and the temperature control method (Claim 7) according to the present invention, a reference heating element that is induction-heated by an induction coil is provided inside the toilet seat, and the induction coil is energized. By obtaining the relationship between the temperature of the seating surface heating element and the temperature of the reference heating element in advance, the temperature of the seating surface heating element can be estimated relatively accurately from the detected temperature of the reference heating element. This is because it is considered that when the induction coil is energized, the seating surface heating element and the reference heating element are induction heated at the same time, and there is no time difference in heat generation between them. Therefore, the temperature of the reference heating element when the seating surface heating element reaches a predetermined temperature is set as a set temperature, and the amount of current supplied to the induction coil is controlled so that the reference heating element becomes the set temperature, thereby the seating surface heating element. The temperature can be easily adjusted to a predetermined value.

  As described in claim 2 or claim 8, a room temperature sensor for measuring the ambient temperature around the toilet seat is provided, and a relationship between the ambient temperature and the energization amount is obtained in advance, so that the ambient temperature is high or low. Thus, it is possible to control to increase or decrease the amount of current supplied to the induction coil. That is, it is possible to automatically determine an appropriate energization amount to the induction coil based on the difference between the ambient temperature around the toilet seat and the target temperature of the seating surface heating element. Therefore, in the cold season such as winter, the energization amount can be increased to increase the heating rate of the seating surface heating element so that it does not take time for the toilet seat surface to reach a predetermined temperature. Further, during the warm season such as summer, the amount of energization can be reduced to prevent the seating surface heating element from overheating above a predetermined temperature. In addition, the surface temperature of the seating surface heating element can be set based on the difference in the atmospheric temperature depending on the season, such as setting the surface temperature of the seating surface heating element lower in the warm season such as summer compared to the cold season such as winter. Control that changes automatically is also possible.

  As described in claim 3, when the reference heating element is made of the same material as the seating surface heating element and disposed on the inner surface of the surface material, the distance from the induction coil to the reference heating element, It is only slightly different from the distance to the seating surface heating element. Therefore, when the induction heating is performed by the induction coil, the reference heating element behaves substantially the same as the seating surface heating element, so that the temperature of the reference heating element can be considered as the temperature of the seating surface heating element. . Therefore, the accuracy of temperature control is increased and the configuration of the control unit can be simplified.

  According to a fourth aspect of the present invention, the reference heating element is made of the same material as the seating surface heating element and is disposed on the bottom plate material of the toilet seat, and the distance from the induction coil to the seating surface heating element and the reference heating element Is set substantially equal to each other, the behavior of the reference heating element when induction heating is performed by the induction coil and the behavior of the seating surface heating element become substantially the same. Therefore, since the temperature of the reference heating element can be considered as the temperature of the seating surface heating element, the accuracy of temperature control is increased and the configuration of the control unit can be simplified.

  When the seating surface heating element is formed of a metal thin film, it is easy to form the seating surface heating element in close contact with the toilet seat surface formed of a curved surface. Therefore, it is possible to provide a product with good appearance.

  As described in claim 6, when a heat insulating layer is formed between the seating surface heating element and the surface material, the heat of the seating surface heating element heated by induction heating by the induction coil is conducted to the surface material. Is suppressed. Therefore, a temperature drop of the seating surface heating element is prevented, and a heating toilet seat device that is difficult to cool can be provided.

[First Embodiment]
FIG. 1 shows an example of a heated toilet seat device S according to the present invention. However, in the drawing, only a portion related to the present invention is schematically shown in the internal structure of the heating toilet seat device S. The heating toilet seat device S includes a toilet seat 1 and a toilet seat support 10 installed on the upper surface of a toilet (not shown). The toilet seat 1 of this example is provided with mounting arm portions 2 and 2 projecting rearward at a predetermined interval on the left and right of the rear end portion, and the front portion of the toilet seat support 10 is sandwiched between the mounting arm portions 2. It is constituted as follows. The toilet seat 1 can be swung by attaching the left and right attachment arm portions 2 to the support shaft 11 protruding from the left and right side surfaces of the toilet seat support 10. The attachment arm 2 is detachable from the support shaft 11, and the toilet seat 1 is configured to be removable from the toilet seat support 10.

  The toilet seat support 10 has, for example, a box shape, and a support-side control unit C1 that is connected to a power source W and receives power supply is provided therein. Although illustration is omitted, when the toilet seat support 10 includes human body detecting means, an automatic opening / closing device for a toilet lid, a music reproducing device, a hot water cleaning device, a toilet flushing device, a deodorizing device, etc., the control unit C1 includes A function for controlling the operation of each of the above devices can be provided based on the human body detection signal of the human body detection means or the operation of the switch button provided at an appropriate position.

  As shown in an enlarged view in FIG. 1B, in this example, a seating surface heating element T is disposed on the outside of the surface material 3 that becomes the base material of the toilet seat 1 and constitutes the seating surface via a heat insulating layer 4. Further, an outer surface coating layer 5 is formed so as to cover the outer surface of the seating surface heating element T. On the other hand, a reference heating element Tx is disposed on the inner surface of the surface material 3, and a temperature sensor 20 is disposed so as to be in contact with the reference heating element Tx. The area where the reference heating element Tx is disposed is the entire area below the seating surface heating element T with the surface material 3 interposed therebetween. The seating surface heating element T and the reference heating element Tx are made of a conductive material that generates heat by electromagnetic induction, and are made of, for example, a metal thin film formed by aluminum vapor deposition, metal sputtering, copper plating, or the like. Alternatively, a metal such as iron, copper, or aluminum, or a conductive material such as an alloy or metal compound mainly composed of these metals may be formed into a plate shape, a sheet shape, or a foil shape. Furthermore, it is conceivable to form a synthetic resin layer obtained by mixing a large amount of metal powder or metal pieces. The seating surface heating element T and the reference heating element Tx are preferably made of the same material and the same thickness.

  The heat insulating layer 4 interposed between the seating surface heating element T and the surface material 3 is formed of a foamed resin such as urethane foam, for example. The outer surface coating layer 5 is for improving the surface properties of the toilet seat 1 and improving the heat retaining property. For example, the stickiness can be reduced by forming with a synthetic resin mixed with micropowder. The heat insulating layer 4 and the outer surface covering layer 5 can be omitted depending on the situation.

  Inside the toilet seat 1, an induction coil U is provided on the upper surface or above the bottom plate member 6 serving as a base material, and a toilet seat side control unit C <b> 2 is provided. In addition, a room temperature sensor 21 that detects the ambient temperature around the toilet seat 1 is provided at a location that is not easily affected by the heat generated by the seating surface heating element T, such as the mounting arm 2. The toilet seat side control unit C2 includes a rectifier circuit, a high-frequency generation circuit, and a control circuit. The toilet seat-side control unit C2 receives power supplied from a power supply device 30 described later by a mutual induction method and generates a high-frequency current to be applied to the induction coil U from this power. It has a rectifier function and an inverter function. In addition, the temperature sensor 20 is connected and configured to output a detected temperature signal from the temperature sensor 20 to the toilet seat side control unit C2. Although illustration is omitted, the space between the induction coil U and the reference heating element Tx in the toilet seat 1 may be filled with an appropriate heat insulating material as desired. The winding structure of the conducting wire in the induction coil U is set so that the heat generation amount of the seating surface heating element T is made as uniform as possible over the entire area when energized.

  The power feeding device 30 for supplying power from the support body side control unit C1 to the toilet seat side control unit C2 includes a power transmission unit 31 provided on the front side of the toilet seat support body 10 and a power reception unit 32 provided on the rear end side of the toilet seat 1. It consists of. Each of the power transmission unit 31 and the power reception unit 32 is formed by winding a coil around the outer periphery of the core. The power transmission part 31 is connected to the support body side control part C1, and receives supply of electric power. The power receiving unit 32 is connected to the toilet seat side control unit C2. When the toilet seat 1 is in the prone position (position where the user can sit), the cores of the power transmitting unit 31 and the power receiving unit 32 are set so as to face each other in close proximity.

  Although illustration is omitted, it is also possible to configure the power feeding device 30 by using the support shaft 11 that supports the toilet seat 1 so as to be swingable as a core around which the primary coil and the secondary coil are wound.

  The heating toilet seat device S according to the present invention configured as described above operates as follows. In the state where the toilet seat 1 is in the prone position shown in FIG. 1 (A), as shown in FIG. 2, when AC power having an appropriate frequency is applied from the support side control unit C1 to the power transmission unit 31, An electromotive force is generated in the power receiving unit 32, and this electric power is converted into a high-frequency current by the toilet seat side control unit C <b> 2 and distributed to the induction coil U. The seating surface heating element T and the reference heating element Tx are simultaneously heated by the electromagnetic induction action of the induction coil U. Since the seating surface heating element T is located on the outer surface side of the toilet seat 1 and the seating surface heating element T is instantly heated by electromagnetic induction, the surface of the toilet seat 1 is warmed in a short time. Since the heat insulating layer 4 is provided between the seating surface heating element T and the surface material 3, it is possible to prevent the heated heat of the seating surface heating element T from being transmitted to the surface material. Moreover, the outer surface coating layer 5 formed of a synthetic resin also exhibits a function of suppressing heat dissipation from the seating surface heating element T into the air and improving heat retention. Therefore, the heating toilet seat device S of this example has an advantage that the toilet seat 1 is difficult to cool.

  If the seating surface heating element T on the outer surface side of the surface material 3 and the reference heating element Tx on the inner surface side are formed of the same material and have the same thickness, they are almost equal in distance from the induction coil U. Therefore, it is considered that the heat generation behavior of the seating surface heating element T and the reference heating element Tx is substantially equal when induction heating is performed. That is, after energizing the induction coil U, the temperature is raised in the same manner as the seating surface heating element T and the reference heating element Tx. Therefore, if the amount of current supplied to the induction coil U is controlled by the toilet seat side control unit C2 so that the temperature tx of the reference heating element Tx detected by the temperature sensor 20 becomes the target temperature of the seating surface heating element T, the seating surface. The heating element T can be set to a predetermined temperature.

  By the way, depending on the situation, after energization of the induction coil U, it may be considered that the heating rate of the seating surface heating element T and the reference heating element Tx is different. For example, the seating surface heating element T and the reference heating element Tx have different materials, different thicknesses, or the reference heating element Tx is disposed at a place other than the inner surface of the surface material 3. In such a case, the relationship between the temperature t of the seating surface heating element T and the temperature tx of the reference heating element Tx is obtained in advance or theoretically in advance, and the reference heating when the seating surface heating element T reaches a predetermined temperature. The temperature of the body Tx is determined in advance. Then, by setting the temperature as a set temperature and controlling the energization amount to the induction coil U by the toilet seat side control unit C2 so that the temperature of the reference heating element Tx detected by the temperature sensor 20 becomes the set temperature, the seating surface The heating element T can be set to a target predetermined temperature.

  In this example, the ambient temperature information is output from the room temperature sensor 21 provided in the toilet seat 1 to the toilet seat side control unit C2. Therefore, it is possible to appropriately control the energization amount to the induction coil U based on the ambient temperature R. That is, when the ambient temperature R is low, such as in the cold season, the amount of current supplied to the induction coil U is increased so that it does not take time until the seating surface heating element T reaches the predetermined temperature. On the other hand, when the ambient temperature R is relatively high, such as during the warm season, the amount of energization is suppressed to prevent the surface temperature of the seating surface heating element T from exceeding a predetermined temperature. The amount of current supplied to the induction coil U can be controlled by adjusting the voltage value, current value, frequency, duty ratio, and the like.

  A mode in which the target temperature when the seating surface heating element T is heated based on the level of the atmospheric temperature R is also possible. That is, the surface temperature of the toilet seat 1 may be set lower in the warm season than the surface temperature of the toilet seat 1 in winter. In addition, it is considered that there is a time when it is unnecessary to energize the seating surface heating element T during a high temperature period such as summer. Thus, according to the atmospheric temperature information detected by the room temperature sensor 21, the control for automatically adjusting the target temperature of the seating surface heating element T can be performed to further enhance the comfort for the user.

  The heating toilet seat device S according to the present invention accurately estimates the temperature of the seating surface heating element T based on the temperature of the reference heating element Tx when the temperature of the seating surface heating element T is increased in a short time by induction heating. Therefore, it is easy to optimally adjust the surface temperature of the toilet seat 1. Accordingly, the present invention is extremely useful in providing a human body detection sensor on the toilet seat support 10 and stopping the energization when not in use and starting the energization when a user is detected to save power. Temperature control means can be provided.

  The heating toilet seat device S of this example has a structure in which power is supplied from the toilet seat 1 to the toilet seat support 10 by electromagnetic induction, and therefore no wiring exists between the toilet seat 1 and the toilet seat support 10. In addition, since the wiring is not connected to the seating surface heating element T that heats the surface of the toilet seat 1, it is easy to seal the inside of the toilet seat 1 to have a waterproof structure. Therefore, the toilet seat 1 can be removed from the toilet seat support 10 and can be easily washed.

[Second Embodiment]
As shown in FIG. 3, the reference heating element Tx disposed on the inner surface side of the surface material 3 of the toilet seat 1 may be formed only partially. In this case, immediately after energization, the reference heating element Tx and the seating surface heating element T exhibit the same heat generation behavior, but after reaching a predetermined temperature, it is necessary to perform temperature control in consideration of the difference in heat capacity.

[Third Embodiment]
As shown in FIG. 4, the reference heating element Tx can be disposed on the upper surface of the bottom plate member 6 of the toilet seat 1. In this case, the reference heating element Tx is made of the same material and the same thickness as the seating surface heating element T, and the distance d1 from the induction coil U to the seating surface heating element T is equal to the distance d2 to the reference heating element Tx. Set. With this configuration, when the induction coil U is energized, the seating surface heating element T and the reference heating element Tx exhibit substantially the same heat generation behavior, so that the temperature sensor 20 detects the temperature of the reference heating element Tx. It is possible to accurately estimate the temperature of the seating surface heating element T.

[Fourth Embodiment]
As shown in FIG. 5, the temperature information tx, R obtained by the temperature sensor provided on the toilet seat and the room temperature sensor is transmitted to the support-side control unit C1 provided on the toilet seat support 10 side, and power is supplied by the support-side control unit C1. It is also conceivable to adjust the energization amount for the induction coil U by controlling the energization amount in the apparatus. In this case, a temperature sensor and a temperature signal generation unit that converts the temperature signals tx and R output from the room temperature sensor into high frequencies, and a signal transmission unit including a primary signal coil and a secondary signal coil are provided, and a mutual induction function is used. Thus, the temperature signal is transmitted from the toilet seat to the control unit C1 of the toilet seat support. Further, in this example, since the amount of energization can be controlled in the power feeding device part, the toilet seat side control unit C3 has only a function of generating a high-frequency current to be given to the induction coil U from the power supplied from the power feeding device by the mutual induction method. Just hold it. That is, since a control circuit for controlling the energization amount to the induction coil U becomes unnecessary, there is an advantage that the circuit configuration of the toilet seat side control unit C3 can be simplified.

[Fifth Embodiment]
As shown in FIG. 6, the room temperature sensor can be provided on the toilet seat support side, and the ambient temperature information R can be directly output to the support side control unit C1.

[Other Embodiments]
Although illustration is omitted, it is also possible to provide the room temperature sensor 21 on the toilet seat support 10 side and transmit the ambient temperature information to the toilet seat side control unit C2. In this case, signal transmission can also be performed using electromagnetic induction between the primary coil and the secondary coil constituting the power feeding device 30.
In the above-described embodiment, a structure is employed in which power is supplied from the toilet seat support 10 to the toilet seat 1 without wiring by using electromagnetic induction. However, the structure is not necessarily limited to this. It is not hindered to provide electric wiring for power feeding between the toilet seat support 10.
It is also possible to use a plurality of temperature sensors 20 and arrange them on the inner surface of the surface material 3 of the toilet seat 1 or on a plurality of regions in the bottom plate material 6.

FIG. 1A is a side sectional view schematically showing an internal configuration of a heating toilet seat device, and FIG. 1B is a two-dot chain line in FIG. 1A according to the first embodiment of the present invention. It is an expanded sectional view of the part enclosed by. It is a flowchart explaining the temperature control method which concerns on the 1st Embodiment of this invention in a heating toilet seat apparatus. FIG. 2A is a side sectional view schematically showing the internal configuration of the heating toilet seat device, and FIG. 2B is a two-dot chain line in FIG. 2A according to the second embodiment of the present invention. It is an expanded sectional view of the part enclosed by. FIG. 3A is a side sectional view schematically showing the internal configuration of the heating toilet seat device, and FIG. 2B is a two-dot chain line in FIG. 2A according to the third embodiment of the present invention. It is an expanded sectional view of the part enclosed by. It is a flowchart concerning the 4th Embodiment of this invention, Comprising: The temperature control method in a heating toilet seat apparatus is demonstrated. It is a flowchart which concerns on the 5th Embodiment of this invention, Comprising: The temperature control method in a heating toilet seat apparatus.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Toilet seat 2 ... Mounting arm part 3 ... Surface material 4 ... Heat insulation layer 5 ... Outer surface coating layer 6 ... Bottom plate material 10 ... Toilet seat support body 11 ... Support shaft 20 ... Temperature sensor 21 ... Room temperature sensor 30 ... Feeding device 31 ... Power transmission part 32 ... Power receiving unit C1 ... Support body side control unit C2 ... Toilet seat side control unit S ... Heating toilet seat device T ... Seating surface heating element Tx ... Reference heating element U ... Induction coil W ... Power supply

Claims (8)

  A seating surface heating element made of a conductive material is disposed outside the surface material constituting the seating portion of the toilet seat, and the induction heating is performed on the seating surface heating element by energizing an induction coil disposed inside the toilet seat. In the heated toilet seat device, a reference heating element that is induction-heated by an induction coil and a temperature sensor that detects the temperature of the reference heating element are provided inside the toilet seat, and the amount of current supplied to the induction coil is set inside the toilet seat or the toilet seat support. A control unit for controlling is provided, and the control unit controls the energization amount to the induction coil based on the temperature signal output from the temperature sensor so that the temperature of the reference heating element becomes a set value. Heating toilet seat device.   A room temperature sensor for detecting the ambient temperature around the toilet seat is provided, and the control unit sets the reference heating element temperature to a set value based on the temperature signal output from the temperature sensor and the ambient temperature signal output from the room temperature sensor. The heating toilet seat device according to claim 1, wherein the energization amount to the induction coil is controlled so as to be.   The heating toilet seat device according to claim 1 or 2, wherein the reference heating element is made of the same material as the seating surface heating element and is disposed on the inner surface of the surface material.   The reference heating element is made of the same material as the seating surface heating element, and is disposed on the bottom plate material of the toilet seat. The distance from the induction coil to the seating surface heating element and the distance from the induction coil to the reference heating element are substantially The heating toilet seat device according to claim 1 or 2, wherein the heating toilet seat device is set to be equal to.   The heating toilet seat device according to any one of claims 1 to 4, wherein the seating surface heating element is formed of a metal thin film.   The heating toilet seat device according to any one of claims 1 to 5, wherein a heat insulating layer is formed between the seating surface heating element and the surface material.   A seating surface heating element made of a conductive material is disposed outside the surface material constituting the seating portion of the toilet seat, and the induction heating is performed on the seating surface heating element by energizing an induction coil disposed inside the toilet seat. In a heated toilet seat device, a reference heating element that is induction-heated by an induction coil and a temperature sensor that detects the temperature of the reference heating element are provided inside the toilet seat, and the amount of current supplied to the induction coil is controlled inside the toilet seat or toilet seat support. A control unit is provided, the temperature of the reference heating element when the induction coil is energized and the seating surface heating element reaches a predetermined temperature is obtained in advance and set as the set temperature, and the temperature of the reference heating element detected by the temperature sensor is set. A temperature control method for a heating toilet seat device, wherein a control unit controls an energization amount to an induction coil so as to be a temperature.   The temperature control method of the heating toilet seat device according to claim 7, wherein a room temperature sensor for detecting an ambient temperature around the toilet seat is provided, and an energization amount to the induction coil by the control unit is controlled based on the ambient temperature detected by the room temperature sensor.