JP2001046280A - Hot stool seat - Google Patents

Abstract

PROBLEM TO BE SOLVED: To reduce the emission of a magnetic field from a conductor disposed in a stool seat of a hot stool seat device with a simple structure by an ac/dc converting means between the conductor and a commercial power source. SOLUTION: A hot stool seat device comprises a stool seat 4, a conductor 2 disposed in the stool seat 4, a switch part 7 for turning on/off the conductor 2, an ac/dc converting part 3 for converting ac current from a commercial power source 1 into dc current and a controller 5 for instructing the switch part 7 to be turned on/off. The ac/dc converting part 3 comprises a full-wave rectifier bridge 9 composed of four diodes and an electrolytic capacitor 8. An electric current at a point B has A waveform obtained after subjected to a full-wave rectification by the full-wave rectifier bridge 9, and smoothed by the electrolytic capacitor 8. Since the conductor 2 is a load of a resistance r, the electric current at a point C is dc current. Accordingly, the electric current is composed substantially only of a direct current component, so that a magnetic field emitted from the conductor 2 is reduced to a level with no problem.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a heating toilet seat device for heating the surface of a toilet seat with a conductor such as a heating element disposed inside the toilet seat.

[0002]

2. Description of the Related Art Conventionally, there has been a heating toilet seat device in which a conductor made of a heating element is disposed inside a toilet seat, and the surface of the toilet seat is warmed by heat generated from the conductor by applying a current from a commercial power supply to the conductor. Since the current flowing through the conductor is supplied directly from a commercial power supply, it is generally an alternating current of 50 Hz or 60 Hz.

However, when an alternating current flows through a conductor disposed inside the toilet seat, a magnetic field is generated around the conductor in response to a change in the current, and as a result, the magnetic field is emitted from the conductor with small power. Will be.

[0004]

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned problems of the prior art, and has a simple structure and has a small magnetic field emission from a conductor disposed inside the toilet seat. An apparatus is provided.

[0005]

According to a first aspect of the present invention, there is provided a heating toilet seat apparatus comprising: a toilet seat; and a conductor disposed in the toilet seat and supplied with current from a commercial power supply. An AC / DC converter is provided between the conductor and the commercial power supply.

According to the present invention, 50 Hz from a commercial power supply
Alternatively, a 60 Hz alternating current is converted into a direct current by the alternating current / direct current converting means and flows through a conductor disposed in the toilet seat. As described above, since the magnetic field is generated according to the change in the current, the magnetic field is not generated in principle from the DC current, and as a result, the magnetic field is not emitted or is emitted from the conductor disposed in the toilet seat. Is also reduced to a very small amount.

According to the third aspect of the present invention, there is further provided a human body detecting means for detecting that a person is sitting on the toilet seat or that the person has approached the toilet seat. It is characterized in that the flowing current value is equal to or less than the current value when no sitting or approaching of a person is detected.

In the present invention, the electric current flowing through the conductor disposed in the toilet seat according to the first aspect of the present invention is converted into a direct current, so that the emitted magnetic field has already been reduced to a small amount. When approaching, the value of the direct current flowing through the conductor is reduced to thereby further reduce the amount of the emitted magnetic field.

In the invention according to claim 4, a human body detecting means for detecting that a person is seated on the toilet seat or a person approaches the toilet seat, and a commercial power supply and the conductor are connected in parallel with the AC / DC converting means. A bypass path for direct connection, and switching means for connecting a commercial power supply to the conductor via one of the AC / DC converter and the bypass path, wherein the switching is performed according to an output of the human body sensor. It is characterized by switching means.

According to the present invention, for example, when a person is not approaching the toilet seat, an alternating current is supplied to the conductor, and when a person is close to the toilet seat, a direct current is supplied to the conductor. It reduces the emission of a magnetic field when the human body is approaching the toilet seat.

[0011]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described below with reference to the accompanying drawings.

FIGS. 1 to 5 show a first embodiment of the present invention. As shown in FIG. 1, the heating toilet seat device according to the present invention comprises:
A toilet seat 4, a conductor 2 disposed in the toilet seat 4, a switch unit 7 for turning on / off electricity to the conductor 2, and an AC / DC converter 3 for converting an AC current from the commercial power supply 1 into a DC current. And a controller unit 5 for instructing on / off of the switch unit 7.

FIGS. 2 and 3 show a current (I) of 50 Hz or 60 Hz and a magnetic field (H) generated when the commercial power supply 1 is directly connected to the conductor 2 without passing through the AC / DC converter 3 in FIG. Is shown. A magnetic field (ΔH) corresponding to the change (ΔI) in the current flowing through the conductive wire 2 is generated in the direction shown in FIG. 2, and as a result, a magnetic field of 50 Hz or 60 Hz is emitted.

FIG. 4 shows an embodiment of the AC / DC converter 3, and FIG. 5 shows current waveforms at points A, B and C in FIG. In FIG. 4, the AC / DC converter 3 is a diode 4
It is composed of a full-wave rectifying bridge 9 and an electrolytic capacitor 8. The current waveform at point A in FIG. 4 is shown in FIG.
5B, the current at point B, which has been full-wave rectified by the full-wave rectification bridge 9, has the waveform shown in FIG. 5B, and is further smoothed by the electrolytic capacitor 8. Conductor 2 has resistance r
Therefore, the current at the point C becomes a DC current as shown in FIG.

In the embodiment shown in FIG. 4, the current is substantially only a DC component, and the magnetic field emitted from the conductor 2 is reduced to a level that hardly causes a problem. To further reduce this AC component, 3
Elements such as terminal regulator are connected to electrolytic capacitor 8 and lead 2
It is effective to provide between them.

FIG. 6 shows a second embodiment of the present invention. The same components as those in the above-described embodiment are denoted by the same reference numerals, and description thereof is omitted. In FIG. 6, in addition to the configuration of the first embodiment, the current value changing means 11 is provided between the AC / DC conversion means 3 and the conducting wire 2 and that a person is seated on the toilet seat 4 or a person approaches the toilet seat 4. And a human body detecting means 10 for detecting that the human body detecting means 10 detects the approach of a person as shown in FIG. When the approach of a person is not detected, the current value (I1) is changed to the following (I2). Thereafter, when the human body detecting means 10 stops detecting the approach of a person, the current value is changed to the original current value (I1). Of course, a delay time may be provided for the timing of changing the current value.

FIG. 8 shows a third embodiment of the present invention. The same components as those in the above-described embodiment are denoted by the same reference numerals, and description thereof is omitted. In FIG. 8, in addition to the configuration of the first embodiment, a bypass path 13 for directly connecting the commercial power supply 1 and the conductor 2 in parallel with the AC / DC conversion means 3, and a bypass path 13 for the AC / DC converter 3 and the bypass path 13. Switching means 12 for connecting the commercial power supply 1 to the conducting wire 2 via one of them, and human body detecting means 10 for detecting that a person is seated on the toilet seat 4 or that a person approaches the toilet seat 4 are provided. As shown in FIG. 9, when the human body detecting means 10 does not detect the approach of a person, an alternating current flows through the conductor 2 when the approach of the person is detected. Of course, a delay time may be provided for the change timing of the AC current / DC current.

[0018]

As described above, according to the present invention, it is possible to reduce the emission of the magnetic field from the conductor disposed in the toilet seat of the heating toilet seat device.

[Brief description of the drawings]

FIG. 1 is a configuration diagram of a heating toilet seat device according to a first embodiment.

FIG. 2 is a diagram of a magnetic field generated when an alternating current flows.

FIG. 3 is a diagram of a magnetic field generated when an alternating current flows.

FIG. 4 is an AC / DC conversion circuit diagram in the first embodiment.

FIG. 5 is a current waveform diagram in FIG.

FIG. 6 is a configuration diagram of a heating toilet seat device according to a second embodiment.

FIG. 7 is a timing chart in the second embodiment.

FIG. 8 is a configuration diagram of a heating toilet seat device according to a third embodiment.

FIG. 9 is a timing chart in the third embodiment.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Commercial power supply 2 Lead wire 3 AC / DC conversion means 4 Toilet seat 5 Controller 6 Main body 7 Switch 8 Electrolytic capacitor 9 Full-wave rectification bridge 10 Human body detection means 12 Switching means 13 Bypass path

Claims (4)

[Claims] 1. A heating toilet seat device comprising a toilet seat and a conductor disposed in the toilet seat and supplied with current from a commercial power supply, wherein AC / DC conversion means is provided between the conductor and the commercial power supply. A heating toilet seat device. 2. The heating toilet seat device according to claim 1, wherein the conductor is formed of a heating element. 3. The apparatus according to claim 1, further comprising a human body detecting means for detecting that a person is sitting on the toilet seat or that the person has approached the toilet seat. A heating toilet seat device characterized in that a current value flowing through a conducting wire is equal to or smaller than a current value when a person's sitting or approach is not detected. 4. A human body detecting means according to claim 1, wherein said human body detecting means detects that a person is sitting on a toilet seat or a person approaches a toilet seat, and a commercial power supply and said conducting wire are provided in parallel with said AC / DC converting means. And a switching means for connecting a commercial power supply to the conductor via one of the AC / DC converter and the bypass path. A heating toilet seat device for switching a switching means.