JP2008110089A5 - - Google Patents

Description

Heated toilet seat and hot water washing apparatus having the same

  The present invention relates to a heating toilet seat having a heating function and a hot water washing apparatus including the same.

  Conventionally, there is a toilet seat device having a heating function in order to prevent discomfort when a user sits on a cold toilet seat (see, for example, Patent Document 1). 7 is a partially cutaway top view of the heated toilet seat of Patent Document 1, and FIG. 8 is a cross-sectional view taken along line JJ of FIG.

  As shown in FIGS. 7 and 8, the heating toilet seat 900 includes an upper case 926 and a lower case 927 made of synthetic resin. The upper case 926 and the lower case 927 are connected to each other. Inside the upper case 926 and the lower case 927, a radiation reflector 929, a lamp heater 930, a thermostat 931, a thermal fuse 932, and a thermistor 33 are provided.

  Here, the radiation reflection plate 929 is formed so as to follow the shape of the lower case 927. A lamp heater 930 is disposed on the radiation reflector 929. A thermostat 931 and a thermal fuse 932 are attached to the radiation reflector 929 across a predetermined portion of the lamp heater 930.

  As shown in FIG. 8, a thermistor 933 is attached to the inner surface of the upper case 926 and at a location facing the lamp heater 930.

  In this heated toilet seat 900, an infrared sensor (not shown) detects the user entering the toilet room. Therefore, the lamp heater 930 is driven based on the detection signal of the infrared sensor. Thereby, the radiant energy from the lamp heater 930 is given to the upper case 926 directly or indirectly via the radiation reflector 929, and the upper case 926 generates heat.

With the above configuration, the toilet seat can be warmed instantaneously. The adjustment of the toilet seat temperature during normal toilet seat heating is controlled by the thermistor 33. Since a lamp heater that raises the temperature at high speed is used, a safety configuration is established in which the thermostat 931 cuts off the power supply to the lamp heater 930 and the temperature fuse 932 stops the power supply when the temperature is excessive.
JP 2000-14598 A

  Because the toilet seat is heated by using a lamp heater that heats up at high speed as a heating element, if the control of the heating means becomes impossible due to some abnormality that occurs in the controller that drives the heating at high speed or the energization gate, the heating rate is high. It will also be quicker to enter the dangerous temperature zone. However, conventional thermostats and thermal fuses used in conventional safety configurations are those that cut off mechanical energization. Especially for thermostats, the bimetal part that responds to heat and the thermal part of the thermal fuse have a certain amount of heat capacity. Since the configuration is such that the current is cut off after the heat is sufficiently transferred here, these configurations affect the response speed.

  For example, when the lamp heater 930 is subjected to triac control, if the lamp heater 930 malfunctions for some reason such as a triac abnormality, the lamp heater 930 may not be energized continuously. It will soon be overheated. There is a limit to prevent overheating by increasing the response speed by shutting off the power by a thermostat or a thermal fuse.

  Further, it is difficult to set the individual heater arrangement and temperature setting arbitrarily and finely using only these general-purpose switches for safety configuration.

  SUMMARY OF THE INVENTION An object of the present invention is to solve the above-mentioned problems, and to provide a safety structure for heating control with a more responsive and controllable structure in a heating toilet seat provided with a heater that rises in temperature at high speed. .

In order to solve the conventional problems, a heating toilet seat according to the present invention includes a toilet seat, a human body detection unit that detects a human body using the toilet seat, a heating unit that heats a seating portion of the toilet seat, and the human body detection unit. A heating driving means for driving the heating means so as to raise the temperature at 1 Kelvin / second or more when detecting a human body, a resistance type temperature detecting means for detecting the temperature of the seating portion of the toilet seat, and An energization interrupting unit that interrupts energization of the heating unit based on a detected temperature, and the heating unit, the energization interrupting unit, and the heating drive unit are connected in series.

  As a result, when a person entering the toilet room is detected, the heating drive means heats the heating means, and in the heated toilet seat that immediately heats up and heats the toilet seat, the heating means, the heating drive means, and the energization cutoff means are connected in series. Therefore, the energization shut-off means shuts off the energization to the heating means based on the temperature detected by the resistance-type temperature detection means for detecting the temperature of the seating portion of the toilet seat. Safety control against ascending is possible.

  The heating toilet seat according to the present invention realizes faster energization interruption at the time of overheating of the heating means of the heating toilet seat provided with heating means for heating at a high speed in the toilet seat. Ascending can be prevented quickly and reliably, and safety control can be performed.

According to a first aspect of the present invention, when a human body is detected by a toilet seat, a human body detecting unit that detects a human body using the toilet seat, a heating unit that heats a seating portion of the toilet seat, and the human body detecting unit, the temperature increases at 1 Kelvin / second or more. Heating drive means for heating the heating means so as to warm, resistance type temperature detection means for detecting the temperature of the seating portion of the toilet seat, and energization to the heating means based on the temperature detected by the temperature detection means The heating means, the energization cutoff means, and the heating drive means are connected in series.

As a result, when a person entering the toilet room is detected, the heating drive means heats the heating means, and in the heated toilet seat that immediately heats up and heats the toilet seat, energization is an electric circuit provided separately from the heating drive means Since the shut-off means shuts off the energization of the heating means of the heating drive means based on the temperature detected by the resistance-type temperature detecting means that detects the temperature of the seating portion of the toilet seat, it responds more quickly and reliably prevents overheating Safety control is possible. The heating means detects the human body entering the toilet room or the human body approaching the toilet apparatus to be seated, that is, the human body before sitting, and then the temperature of the toilet seat held at the low standby temperature is detected by the heating drive means. Even if the heating means is energized and heated, the temperature of the toilet seat when the human body is satisfactorily raised.

According to a second invention, in the first invention, a thermostat is provided facing the heat generating portion of the heating means, and the thermostat cuts off the energization of the heating means when the heating means reaches a predetermined temperature or higher.

Thereby, the thermostat provided separately from the energization cutoff means can perform double safety control in combination with the first invention against the abnormal temperature rise of the heating means, and the safety can be further secured. The thermostat can be provided not in contact with the heat generating portion of the heating means but in contact with the seating portion. However, since it is a heating means that heats up at a high speed, the thermostat operates with respect to the temperature of the heat generating portion of the heating means as a configuration that faces the heat generating portion of the heating means, so that it is necessary to shut off energization, that is, at high speed When the temperature rises, it can effectively respond at high speed.

According to a third invention, in the first or second invention, the energization cutoff means includes a relay and a circuit configured to apply a voltage corresponding to a predetermined temperature of the resistance-type temperature detection means, The energization of the heating means is controlled by comparing the temperature of the resistance type temperature detecting means with a voltage corresponding to a predetermined temperature of the circuit and turning the relay OFF or ON.

This cuts off the power to the heating means in an electrical circuit, so it does not operate at a constant temperature like a thermostat or a thermal fuse, and the temperature can be set arbitrarily, so the design of the drive configuration of the heating means can be freely set. The degree increases.

A fourth aspect of the invention includes a heating toilet seat according to any one of the first to third aspects of the invention, and a water heater having a human body washing means for washing a human body with hot water, and having a heat exchanger for generating hot water, wherein the water heater is The hot water washing apparatus is characterized in that the heat exchanger of the water heater is not driven when the heating means is driven by the heating drive means.

  Thereby, in the hot water washing apparatus, electric power can be effectively distributed between the washing water heater that uses the most electric power and the heating means for toilet seat heating that rapidly raises the temperature.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. Note that the present invention is not limited to the present embodiment.

  FIG. 1 shows an outline of a toilet room in which a hot water washing apparatus is installed. FIG. 2 shows a control function block diagram relating to the heating toilet seat of the hot water washing apparatus. In FIG. 3, the figure explaining the structure of the heating means integrated in the toilet seat is shown. FIG. 4 is a circuit configuration diagram of the present invention, FIG. 5 is a time chart of the energization cut-off means of the present invention, and FIG. 6 is a time chart after the energization cut-off of the present invention.

  FIG. 1 is an external perspective view showing a heated toilet seat and a hot water washing apparatus having the same according to an embodiment of the present invention. As shown in FIG. 11, the hot water cleaning apparatus 1 includes a heating toilet seat 2 and is placed on a toilet 3 and installed in a toilet room.

  The hot water washing apparatus 1 includes a toilet apparatus body 4 placed on the toilet 3, a remote control unit 5, a toilet seat unit 6, a lid unit 7, and a room entry detection sensor 8. The remote control unit 5 is usually fixed by a user to a place that is easy to operate when the user is seated on the toilet seat 6 or when the toilet 3 is used in a standing position, for example, a wall surface. The entrance detection sensor 8 is provided separately from the toilet seat device main body 4 and the remote control unit 5 and wirelessly detects the entrance of a human body to a medical examination unit provided in the same manner as various setting switches such as a sleeve portion of the toilet seat device main body 4. It is the structure which transmits a signal. This is affixed and fixed at a place where entry can be reliably detected depending on the situation of each toilet room.

  The toilet seat device body 4 is attached to the toilet seat portion 6 and the lid portion 7 so as to be free to serve as a prisoner. Further, the toilet seat device main body 4 is provided with a faucet clean water supply mechanism and a seating sensor 9 and incorporates a controller 10 that controls various functions of the hot water washing device 1.

The stopper clean water supply mechanism of the toilet seat apparatus main body is not shown, but is connected to a water supply abolished publication, and the seating sensor 9 that supplies the stopper clean water to the toilet bowl 3 is, for example, a reflective infrared sensor. In this case, the seating sensor 9 detects that a user is present on the toilet seat 6 when detecting infrared rays reflected from the human body. As will be described in detail later, the toilet seat 6 has a single lamp heater 11 as a heating means for heating. The rated power of the lamp heater 11 is 1200W. In the present embodiment, aluminum is used so that the exposed area of the seating portion 6 is 1200 cm 2 and the plate pressure is 1 mm, and a surface decorative layer is applied to the surface (not shown). In this configuration, assuming that all of the radiant energy generated from the lamp heater 11 is given to the seating portion 6, it is heated at a temperature increase rate of about 4 Kelvin / second. In this case, even if it is about 5 ° C. before the lamp heater 11 is heated, it takes about 29 seconds in about 6 seconds (the time investigated by the inventors as the time until a person enters the toilet room and sits down). Can raise the temperature to a degree. However, considering the loss of radiant energy emission, the heater capacity to raise the temperature at a high speed is usually 1 Kelvin / second or more, including when the room temperature is high or when the temperature is kept warm. It is believed that there is.

  FIG. 2 shows a control function block diagram of the present invention. Within the toilet seat body 4 of the hot water washing apparatus 1 are a control unit 10 that controls various functions, a lamp heater 11 that is a heating unit provided in the toilet seat 6, and a heating drive unit that heats the lamp heater 11. Thermistor 14 which is a resistance type temperature detecting means affixed from the inside of the toilet seat in order to detect the temperature of the heater driving unit 12 and the seating portion 13 of the toilet seat portion 6, and the seating portion temperature information detected by the thermistor 14 is the temperature measuring portion 15. And a thermostat 17 that detects the radiation temperature of the lamp heater 11 and shuts off the power supply to the lamp heater 11. Yes. The control unit 10 also controls the hot water cleaning function, and performs driving of the human body cleaning nozzle, ejection of cleaning water, cleaning, and the like (not shown). The water heater 50 includes a heat exchanger 51 that superheats the cleaning water, and generates hot water for human body cleaning.

  Normally, when an entrance signal from the entrance detection sensor 8 is received, the heater drive unit 12 starts the heating drive of the lamp heater 11 or high wattage power to raise the temperature quickly from the low power input state in the standby state until then. The toilet seat seating section temperature is set to an appropriate temperature until the user is seated. When the standby temperature is set after the temperature reaches an appropriate temperature, the temperature of the seating section 6 detected by the thermistor 14 is output from the temperature measurement section to the control section 10, and the heater drive section 12 is controlled to control the seating section. 6 Control the temperature. When the temperature of the seating section is abnormally increased based on the temperature information of the temperature measuring section 15, the heater shut-off section 16 cuts off the power supply to the lamp heater 11. Further, a thermostat 17 is also provided so as to detect the radiation temperature of the lamp heater 11 and cut off the power supply to the heater.

  FIG. 3 shows details of the configuration of the toilet seat. The toilet seat portion 6 is constituted by an upper frame body 6a (not shown) and a lower frame body 6b having a hollow inside, and members relating to the toilet seat heating including the lamp heater 11 are built in the hollow portion. Reference numeral 18 denotes a hinge portion that is attached together with the lid portion 7 to an open configuration that can be opened and closed. A single lamp heater 11 of 1200 W is provided around the toilet seat shape by combining a straight tube portion and a curved tube portion. At this time, the end of the lamp heater 11 is rotated around the rear of the toilet seat 6 so that the lower frame 6b is provided with a reflecting plate 6c that polarizes the radiant light and reflects the reflected light to the seat 6. The lamp heater 11 is fixedly disposed on the reflecting plate 6c.

  The thermostats 17a and 17b are fixed on the reflection plate 6c so as to face the lamp heater 11. The return-type thermostat 17a operates to shut off at a slightly lower temperature, and the non-reset-type thermostat 17b operates at a higher temperature than the reset-type thermostat 17a. It can be used safely and comfortably for a period. The lamp heater 11 and the thermostats 17a and 17b are connected in series, and power is supplied to these members via an electrical cable that leads to the toilet seat device body 4 of the hinge 18 part.

  At this time, the water heater 50 is an instantaneous heating means, and this is also a heat exchanger 51 with a high wattage of about 1200 W. Therefore, taking into account the rated wattage of the toilet outlet of a general household, the toilet seat heating speed is high. It cannot be operated at the same time as the temperature rises. However, when the human body enters the toilet room and receives the data detected by the human body detection means 8, the lamp heater 11 is heated and driven, and at this time, the heating of the water heater 50 to the heat exchanger 51 is restricted, and the toilet seat Since the human body is seated and the power supplied to the lamp heater 11 is switched to a low power for standby or heat retention, for example, 50 W, the heat exchanger of the water heater 50 can be kept warm once the seating portion 6 is sufficiently warmed. 51 is controlled so that it can be driven, and optimal power distribution is performed.

  FIG. 4 shows a circuit configuration of the present embodiment. The power of the power supply unit AC100V is converted to 15V by the SW power supply and supplied to the control unit 10. The lamp heater 11, the heater shut-off unit 16, and the heater driving unit 12 are connected in series. First, the heater shut-off unit 16 includes a relay 19 that mechanically cuts off energization, a first comparator 20, a second comparator 21, transistors 22a and 22b, and resistors 23a to 23f. The heater drive unit 12 has a triac 24.

  The temperature control of toilet seat heating with the above configuration operates as follows. FIG. 5 shows a time chart of the control operation of the present embodiment. The state from the normal operation to the heater shut-off operation will be described. FIG. 6 is a time chart of the return operation after the power supply to the heater is cut off. In both charts, the seating portion temperature detected by the thermistor 14 from the top and measured by the temperature measurement unit 15 (corresponding to the toilet seat surface temperature), T is an appropriate temperature based on the set toilet seat temperature, and T + t2 is an appropriate temperature limit. The upper limit value, T-t1, is the low temperature control lower limit value. T2 is a threshold temperature for driving the heater shut-off unit. T3 is a return temperature at which energization to the lamp heater 11 is restored. The On-Off of the triac 24, the On-Off of the relay 19, and the energization On-Off of the lamp heater 11 corresponding to the change in the toilet seat temperature are shown. The section A from the left is a normal operation, and the drive control of the lamp heater 11 becomes impossible due to the failure of the triac 24 at the timing of S1 and deviates from the appropriate temperature range. The thermistor 14 detects that the toilet seat temperature has risen in the section B and has reached the heater shut-off temperature T2 at the timing S2, and the heater shut-off unit 16 cuts off the power supply to the lamp heater 11 in response to a signal from the temperature measuring unit. Is done. In the section C, the toilet seat surface temperature gradually decreases. When the toilet seat surface temperature falls to T3 set to a lower temperature than the appropriate temperature range, the energization to the lamp heater 11 is restored at the timing of S3, and the toilet seat surface is raised to the appropriate temperature control range in the section D. At the timing of S4, as a result of replacing the triac and the like, the triac 24 becomes normal and normal temperature control is resumed.

  This operation will be described with a circuit configuration. Usually, in normal operation, the thermistor 14 makes T-t1 (optimum temperature control lower limit value) or less so that the surface temperature of the toilet seat becomes the optimum temperature T preset by the user. Is input to the CPU of the control unit 10, the lamp heater 11 is energized through the gate portion (transistor 22 a) of the triac 24 of the heater driving unit 12.

  Further, when a voltage equal to or higher than T + t2 (appropriate temperature control upper limit value) is input to the CPU of the control unit 10 by the thermistor 14, the lamp heater 11 is shut off via the gate portion (transistor 22a) of the triac 24 of the heater drive unit 12. By repeating this state, an appropriate temperature is maintained.

  However, when the heater drive unit 12 becomes abnormal due to an energization failure of the triac 24 and the gate portion (transistor 22a) of the triac 24 during normal control, the surface temperature of the toilet seat increases.

Therefore, from the thermistor 14 than the input voltage No. 5 terminal of the comparator 20 to which a voltage corresponding to the temperature T2 (breaking relay operating temperature) at which the toilet seat surface temperature is not burned by the 16 resistors 23a and 23b of the heater shut-off control unit is applied in advance. When there is an input equal to or higher than the voltage corresponding to T2 at the input voltage terminal 6 of the first comparator 20, the transistor Q2 that energizes the coil of the relay 19 from the terminal 1 of the second comparator 21 is turned off.

  Then, the coil of the relay 19 is not energized, the relay 19 is turned off, the energization of the lamp heater 11 can be stopped, and an excessive rise in the surface temperature of the toilet seat can be prevented.

  In the time chart after the energization is cut off in FIG. 6, once the input voltage No. 5 terminal of the first comparator 20 is input from the thermistor 14 to the input voltage No. 6 terminal of the first comparator 20 higher than the voltage equivalent to T2. If there is, the transistor 22b that energizes the coil of the relay 19 from the first terminal of the second comparator 21 is turned off, but this state is held by the second comparator 21 and preset by the resistors 23c and 23d. The relay 19 can be operated again when the voltage changed by the thermistors 14, 23 e, and 23 f becomes lower than the applied voltage (temperature much lower than the return relay operating temperature T 3... T).

  With this circuit configuration, the relay 19 can be restored when the surface temperature of the toilet seat is lowered by arbitrarily setting 23e and 23f in advance, and 23e and 23f are not likely to actually be at a temperature (in the toilet room). By making the ambient temperature impossible), it can be prevented from returning again. There is a possibility that chattering may occur when shutting off and returning at a specific temperature with a general return type thermostat, etc., and there is a possibility that drive control that hinders actual heater drive will occur, and this configuration will be realized with a thermostat Then, it is difficult to use general-purpose parts and is not suitable for mass production, but the safety control according to the present embodiment can be configured so that operation settings can be made without causing any trouble.

  With the above circuit configuration, detailed operation setting can be easily performed, and various controls for an arbitrary temperature can be easily realized. If the lamp heater 11 continues to be energized due to some abnormality during the high-temperature temperature rise control or during the warm-up control in the normal standby state, the relay 19 of the heater shut-off unit 16 is activated based on the temperature detected by the thermistor 14. It cuts off the power and can reliably prevent overheating.

  According to the present embodiment, the following effects can be obtained.

  When a person who enters the toilet room is detected, the heater drive unit 12 serving as a heating drive unit heats the lamp heater 11 serving as a heating unit, and immediately raises the temperature at a rate of temperature rise of 1 Kelvin / second or more to raise the toilet seat. In the heated toilet seat, the heater shut-off unit 16 serving as a power cut-off means cuts off the power supply to the lamp heater 11 based on the detected temperature of the thermistor 14 serving as a resistance-type temperature detecting means for detecting the temperature of the seating part of the toilet seat. Therefore, it is possible to perform a safe control against an excessive temperature rise in response to a higher speed. In particular, examples of the heating means for instantaneously heating the toilet seat include the lamp heater shown in the present embodiment, but other heaters such as a cord heater and a planar heater may be used, and the present invention is not limited thereto. In this embodiment, since it is an electric circuit energization interruption means based on the temperature detected by the thermistor 14 which is a resistance type temperature detection means, for example, the heat capacity is smaller than that of a thermostat or a thermal fuse, and In this way, when using temperature detection means that does not operate at a constant temperature and has a wide detection temperature range and good response, various heating drive controls can be set arbitrarily, and the design flexibility of the drive configuration increases. . For example, it may be configured to notify the user in advance by sound generation or display on the remote control device depending on the situation.

In addition, thermistor 14 is provided as a resistance type temperature detection means, and the electrical circuit is configured to cut off current. Therefore, it is possible to predict an abnormal temperature rise from the change in the rising gradient. The timing to shut off and the timing to return to energization can be determined arbitrarily, and there is a degree of freedom in undesired operation settings.

  Further, since the thermostat 17 is provided and the lamp heater 11 as the heating means is heated to a predetermined temperature or higher, the energization of the lamp heater 11 is interrupted. Therefore, in addition to the energization interrupting means 16, Safety control is important, and safety can be secured. In this embodiment, the thermostat is provided with a return type 17a and a non-return type 17b, and a triple multiple safety configuration is obtained.

  The thermostat 17 is provided to face the heat generating portion of the lamp heater 17. The thermostat 17 may be provided not in contact with the heat generating portion of the lamp heater 17 but in contact with the seating portion. However, since the thermostat operates with respect to the temperature of the heat generating portion of the heating means that rapidly raises the temperature, it is possible to respond more effectively at a high speed. This is effective even when the heater is not a lamp heater.

  The thermistor 14 is used as a resistance type temperature detecting means, and is provided on the toilet seat so as to detect a temperature corresponding to the seating portion temperature of the toilet seat. Specifically, it is provided on the inner surface side of the seating portion 6 surface of the hollow portion inside the toilet seat in the region when the contact frequency of the human body is highest when sitting. As a result, the temperature detecting means is provided so as to detect the temperature of the seating portion 6, that is, the temperature of the place where the human body is in direct contact, so that the response speed to the temperature of the seating portion 6 can be improved.

  The lamp heater 11 is driven by the heating driving means 12 so that the temperature is raised at 1 Kelvin / second or more when the human body detecting means 8 detects a human body. Thus, even if the human body is detected from the standby state kept at a low temperature and then the heating means 11 is energized by the heating drive means 12, the seat is raised and raised to a sufficient toilet seat temperature so as not to feel cold. Can do. This makes it possible to raise the toilet seat temperature at high speed in the time from entering the toilet room to sitting.

  In addition, a heating toilet seat and human body washing means for washing the human body with hot water are provided, and a water heater 50 having a heat exchanger 51 for generating hot water is provided. The water heater 50 drives the heating means 11 by the heating drive means 12. In some cases, the hot water cleaning apparatus 1 is characterized in that the heat exchanger 52 of the hot water heater 50 is not driven.

  Thus, in the hot water washing apparatus 1, it is possible to effectively distribute the electric power between the hot water heater generating function that uses electric power most of the various functions of the hot water washing apparatus and the toilet seat heating function that rapidly raises the temperature.

  In the present invention, the safety control for the overheating of the high-temperature heating type heating element can be performed at a higher speed and more arbitrarily, so that it can be used in combination with the conventional mechanical power cut-off configuration. Therefore, the present invention can be widely used not only for heating toilet seats but also for controlling other heating elements such as electric heating appliances and electric cooking appliances.

The external appearance perspective view which shows the outline | summary of the toilet room which installed the warm water washing apparatus provided with the heating toilet seat which concerns on embodiment of this invention The control functional block diagram regarding the hot water washing apparatus provided with the heating toilet seat which concerns on embodiment of this invention The figure for demonstrating the detail of the structure of the toilet seat part of embodiment of this invention The circuit block diagram of the toilet seat apparatus in the Example which concerns on embodiment of this invention Time chart of energization cut-off operation in the embodiment of the present invention Time chart after energization cut-off operation in the embodiment of the present invention Partially cut away top view of a conventional heated toilet seat JJ sectional view of a conventional heated toilet seat

DESCRIPTION OF SYMBOLS 1 Warm water washing apparatus 2 Heating toilet seat 8 Entrance detection sensor 9 Seating sensor 10 Control part 11 Lamp heater (heating means)
12 Heater drive (heating drive means)
13 Seating section 14 Thermistor (temperature detection means)
16 Heater cutoff part (energization cutoff means)
17 Thermostat 50 Water heater 51 Heat exchanger

Claims (4)

Toilet seat and
Human body detection means for detecting a human body using the toilet seat;
Heating means for heating the seating portion of the toilet seat;
A heating driving means for driving the heating means so as to raise the temperature at 1 Kelvin / second or more when a human body is detected by the human body detecting means;
A resistance type temperature detecting means for detecting the temperature of the seating portion of the toilet seat;
An energization interruption means for interrupting energization to the heating means based on the detected temperature of the temperature detection means,
A heating toilet seat in which the heating means, the energization cutoff means, and the heating driving means are connected in series. The heating toilet seat according to claim 1 , wherein a thermostat is provided opposite to the heat generating portion of the heating means, and the thermostat cuts off the energization of the heating means when the heating means reaches a predetermined temperature or higher. The energization cut-off means has a relay and a circuit adapted to apply a voltage corresponding to a predetermined temperature of the resistance-type temperature detection means, the temperature of the resistance-type temperature detection means and a predetermined value of the circuit The heating toilet seat according to claim 1 or 2, wherein energization of the heating means is controlled by comparing the voltage corresponding to the temperature and turning the relay OFF or ON. A heating toilet seat according to any one of claims 1 to 3 , a water heater having a heat exchanger for heating hot water, and a human body washing means for washing a human body with the hot water generated by the water heater , the water heater, hot water cleaning apparatus that does not perform heating by the heat exchanger at the time of driving the heating means by the heating drive means.