JP2000232952A - Warming closet seat - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a warming closet seat which is capable of uniformly heating the front surface temperature of a close seat body without changing the length of a heater. SOLUTION: The warming closet seat has the close seat body 2, a heater unit 5 fixed to the inner side on the rear surface of the close seat body 2 and a power feed control section 6 for controlling the power feed to this heater unit 5. The heater unit 5 is formed by making heaters 4 adhere to a metallic foil sheet 3 and is provided with metallic pieces 10 at least partly or wholly held between the close seat body 2 and the heater unit 5.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a heated toilet seat that heats a toilet seat body and does not give a user an unpleasant feeling of being cold.

[0002]

2. Description of the Related Art A conventional heating toilet seat is, as shown in FIG.
The heater unit 5 is fixed to the inside of the back surface of the toilet seat main body 2. The heater unit 5 will be described in detail with reference to FIG. 7. The heater unit 5 is provided on one side of a metal foil sheet 3 using aluminum foil or the like. One string-shaped heater 4 is adhered, a temperature fuse is provided as a safety device 11 in series with the heater 4, and a toilet seat temperature detecting element 8 for detecting a toilet seat temperature is provided.

[0003] As described above, the heating toilet seat includes a toilet seat main body 2.
The heater unit 5 is fixed to the back surface of the heater unit 5. However, since water may adhere to the heater unit 5 as it is, as shown in FIG. 5, the heater unit 5 is covered with a bottom plate 7 so that the heater unit 5 can be used safely. I have.

[0004] The heating control of the heating toilet seat is controlled by a power supply control unit 6 as shown in FIG.
Performs ON / OFF control of power supply to the heater 4 based on information from the toilet seat temperature detecting element 8 so as to maintain the heating toilet seat at a pre-set heat retaining temperature of the user.

[0005]

However, in the above-mentioned conventional heating toilet seat, it is difficult to evenly provide the heaters 4 due to the complicated three-dimensional shape of the toilet seat body 2.
Has a problem that the upper surface temperature becomes non-uniform. In addition, because the upper surface temperature becomes non-uniform, the temperature detection becomes inappropriate depending on the installation position of the toilet seat temperature detecting element 8, and the temperature is controlled at a temperature considerably lower or higher than the temperature set by the user depending on the location. Could be done.

In order to eliminate the above-mentioned non-uniform upper surface temperature, it is conceivable that the length of the heater 4 is lengthened and the wiring is densely arranged as a whole.
The resistance value is increased by the length, and the current value that can flow is limited. This means that the calorific value of the heater 4 decreases, and depending on the length of the heater 4,
In some cases, the toilet seat body 2 cannot be heated to the temperature set by the user.

The present invention has been made in view of the above-mentioned problem, and provides a heating toilet seat capable of uniformly heating the upper surface temperature of the toilet seat body 2 without changing the length of the heater 4. The purpose is to:

[0008]

According to the present invention, as shown in FIG. 2, a toilet seat body 2, a heater unit 5 fixed to the inside of the rear surface of the toilet seat body 2, and a power supply to the heater unit 5 are controlled. In the heating toilet seat 1 having the power supply control unit 6 to perform heating, the heater unit 5
And a metal piece 10 of which at least a part or the whole is sandwiched between the toilet seat body 2 and the heater unit 5.

In the present invention, as shown in FIG. 2, the power supply control unit 6 has a toilet seat temperature detecting element 8 electrically connected to the power supply control unit 6, and the toilet seat temperature detecting element 8 It is characterized by being installed so as to be in contact with the metal piece 10.

Further, the present invention is characterized in that the heater 4 has a thermal fuse (safety device 11) or a bimetal switch connected in series to the heater 4, as shown in FIG.

Further, the present invention is characterized in that the metal piece 10 has a ground 12 as shown in FIG.

In the present invention, as shown in FIG. 2, the toilet seat main body 2 has a human body seating switch 9, and while the human body seating switch 9 detects the seating of the human body, the heater 4 It is characterized in that the amount of power supply is reduced.

[0013]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Metal foil sheet 3 used in the present invention
Is to fix the heater 4 directly as one heater unit 5 having the heater 4 without directly fixing the heater 4 to the toilet seat body 2 having a complicated shape, so that the heater 4 can be easily assembled. The sheet is not particularly limited as long as it is a metal sheet having a high thickness, and an aluminum foil, a copper foil, or the like can be used as appropriate. Further, the thickness of the metal foil sheet 3 is not particularly limited, but is preferably thin because it is necessary to change the shape and fix the metal foil sheet 3 to the toilet seat body 2.
It is preferable to use one having a diameter of about 25 to 200 μm.

The heater 4 used in the present invention is not particularly limited as long as it heats the toilet seat body 2, and specifically includes a PVC heater wire, a silicone rubber heater wire, and a P heater.
A TC heater (a planar heating element) or the like can be used as appropriate. In addition, the arrangement of the heater 4 is determined in consideration of temperature balance.
It is preferable to make them equal, but it is not necessary to make them strictly equal. However, it is preferable that the left and right heater arrangements are target arrangements.

The metal piece 10 used in the present invention increases the heat capacity between the heater 4 and the toilet seat body 2 by sandwiching at least part or all of the metal piece 10 between the heater 4 and the toilet seat body 2. It is preferable that the metal piece 10 is for making the upper surface temperature of the toilet seat body 2 uniform and that is thicker than the thickness of the metal foil sheet 3. The metal piece 10 preferably has a thickness of about 0.5 to 3 mm in order to perform drawing or bending in accordance with the shape of the inside of the back surface of the toilet seat main body 2. The material of the metal piece 10 is not particularly limited as long as it is made of metal, but it is preferable to use copper or a copper alloy having high thermal conductivity. In addition, in the normal use state, although the electric leakage does not occur from the heater to the metal piece 10, the safety can be further enhanced by providing the metal piece 10 with the ground 12.

As the toilet seat temperature detecting element 8 used in the present invention, a thermistor that varies the resistance value according to the temperature can be suitably used, and the power supply control unit 6 uses the heater 4 based on the temperature information from the toilet seat temperature detecting element 8. ON-OFF control of power supply to the power supply. It is preferable that the place where the toilet seat temperature detecting element 8 is installed is in contact with the metal piece 10 for increasing the heat capacity. By contacting the metal piece 10, the temperature can be appropriately measured.

The heater 4 used in the present invention includes a safety device 1
As 1, it is preferable to connect a temperature fuse that is blown at a predetermined temperature or a bimetal switch that turns on and off the switch at a predetermined temperature in series. This further enhances the safety of the heating toilet seat. Even if the power supply control unit 6 fails, the power supply to the heater can be physically stopped, and abnormal heating of the heater can be prevented.

The human body seating switch 9 used in the present invention detects the user's seating on the toilet seat body 2, and can use a pressure-sensitive switch, an infrared sensor or the like as appropriate.
Among them, it is preferable to use a pressure-sensitive switch in terms of reliability and cost. In addition, the user often feels cold only at the moment of sitting on the toilet seat main body 2 or in a short time period after sitting, and the longer the sitting time, the more the body temperature of the toilet seat main body 2 increases. Because it is warmed, it doesn't feel cold. Therefore, it is preferable to reduce the amount of power supplied to the heater 4 to save power while the human body sitting switch 9 is detecting that the human body is sitting.

[0019]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 3 is a plan view of the heater unit 5 used in the present invention, and a string-shaped silicon rubber heater wire as the heater 4 is adhered to one surface of an aluminum foil (metal foil sheet 3) having a thickness of 50 μm. Further, the silicon rubber heater wire includes:
As the safety device 11, a temperature fuse that blows at 75 ° C. is connected in series.

On the surface of the metal foil sheet 3 to which the heater 4 is not bonded, a copper alloy metal piece 1 having a thickness of 2 mm shown in FIG.
0 and 10 are fixed via heat conductive grease. Further, the metal piece 10 is connected to an earth 12 as a countermeasure against electric leakage, and the toilet seat temperature detecting element 8 is brought into contact therewith.

As shown in FIG. 1, the heater unit 5 is fixed to the inside of the rear surface of the toilet seat main body 2 and is covered with a bottom plate 7 to take measures against waterproofing of the heater unit 5. FIG. 2 is a partially transparent plan view of the heating toilet seat 1 according to one embodiment of the present invention. A pressure-sensitive switch, which is a human body sitting switch 9, is installed on the bottom plate 7, and the human body sitting switch 9, as described above. The heater 4 and the toilet seat temperature detecting element 8 are each electrically connected to the power supply control unit 6.

The operation of the heating toilet seat 1 according to the present invention will be described. A user sets a desired temperature in advance to determine the heat retaining temperature of the heating toilet seat 1, and thereafter, the user sets the heating temperature.
Controls the amount of power supplied to the heater 4 using the power supply control unit 6 so that the heat retention temperature is set by the user. When the user sits on the heating toilet seat 1, the power supply control unit 6 receives the human body sitting signal from the human body sitting switch 9, reduces the power supply to half the normal time, and saves power. After the human body is not detected, the power is returned to the normal power supply amount again.

Embodiment The heating toilet seat 1 described above and shown in FIG.
The temperature was set at 0 ° C., and after 20 minutes, the temperature was measured at any 30 points on the upper surface portion (portion where the user sits) of the toilet seat main body 2.

COMPARATIVE EXAMPLE The metal piece 10 was removed from the heating toilet seat 1 used in the example, and the temperature was maintained at 40 ° C. as in the example, and after 20 minutes, the temperature was measured at 30 points as in the example. Was done.

As a result of temperature measurement in the examples, the maximum temperature was 43 ° C., the minimum temperature was 38 ° C., the maximum temperature difference was 5 ° C., and the average temperature at 30 points was 40.5 ° C.
As a result of temperature measurement in the comparative example, the maximum temperature was 43
° C, the minimum temperature was 31 ° C, the maximum temperature difference was as much as 12 ° C, and the average temperature at 30 points was 36.5 ° C.

[0026]

As described above, the present invention makes it possible to uniformly heat the upper surface temperature of the toilet seat body without increasing the length of the heater by using a metal piece, and No discomfort. In addition, by installing the toilet seat temperature detecting element so as to be in contact with the metal piece, it has become possible to appropriately perform temperature measurement. Furthermore,
If a heater is provided with a thermal fuse or a bimetal switch, it is possible to prevent abnormal heating of the heater even if the power supply control unit breaks down.
Electric leakage can be prevented.

When a human body sitting switch is provided in the heating toilet seat, the power supply control unit reduces the power supply amount only when the human body is seated, thereby saving power without giving the user the discomfort of being cold. Can also.

[Brief description of the drawings]

FIG. 1 is a sectional view showing a heating toilet seat according to an embodiment of the present invention.

FIG. 2 is a partially transparent plan view showing a heating unit according to an embodiment of the present invention.

FIG. 3 is a plan view of a heater unit which is a main part of the present invention.

FIG. 4 is a plan view of a metal piece used in the present invention.

FIG. 5 is a cross-sectional view of a heating toilet seat showing a conventional example.

FIG. 6 is a partially transparent plan view of a heating toilet seat showing a conventional example.

FIG. 7 is a plan view of a heater unit used for a conventional heating toilet seat.

FIG. 8 is a schematic circuit diagram used for a conventional heating toilet seat.

[Explanation of symbols]

1. Heating toilet seat 2. Toilet seat body 3. Metal foil sheet 4. Heater 5. Heater unit 6. Power supply controller 7. Bottom plate 8. Toilet seat temperature detection element 9. Human body sitting switch 10. Metal pieces 11. Safety device 12. Earth

Claims (5)

[Claims] 1. A heating toilet seat having a toilet seat body, a heater unit fixed to the inside of the back surface of the toilet seat body, and a power supply control unit for controlling power supply to the heater unit, wherein the heater unit is provided on a metal foil sheet. A heating toilet seat to which a heater is bonded, wherein a metal piece is provided between the toilet seat body and the heater unit, at least a part or all of which is sandwiched between the heater seat body and the heater unit. 2. The power supply control unit includes a toilet seat temperature detecting element electrically connected to the power supply control unit, and the toilet seat temperature detecting element is installed so as to be in contact with the metal piece. Item 2. A heating toilet seat according to Item 1. 3. The heating toilet seat according to claim 1, wherein the heater has a thermal fuse or a bimetal switch connected in series to the heater. 4. The heating toilet seat according to claim 1, wherein the metal piece has a ground. 5. The toilet seat body has a human body sitting switch,
While the human body sitting switch is detecting the human body sitting,
The heating toilet seat according to any one of claims 1 to 4, wherein the amount of power supplied to the heater is reduced.