JP4742905B2 - Heating toilet seat - Google Patents

Description

  The present invention relates to a fixing structure of a thermistor for temperature detection of a heated toilet seat used in a sanitary washing device or the like.

  Conventionally, a toilet seat equipped with a heating function used for a sanitary washing device or the like has a thermistor for detecting the temperature of the toilet seat inside the toilet seat. A recess is formed on the back surface of the plate, and a thermistor is fitted and fixed in the recess (see, for example, Patent Document 1).

FIG. 7 shows a cross-sectional view of a fixing portion of a thermistor of a conventional heating toilet seat described in Patent Document 1. As shown in FIG. The toilet seat joins the upper case 31 and the lower case 32 up and down to form a hollow portion 33, a lamp heater 34 is disposed at the center of the hollow portion 3, and the lamp heater 34 is disposed on the side of a thermostat 35. They are electrically connected in series. A recess 36 is formed in a portion of the back surface of the upper case 31 located above the lamp heater 34, and a thermistor 37 is fitted in the recess 36, so that the temperature of the upper case 31 of the toilet seat is detected. .
JP 2000-14598 A

  However, in the above-described conventional configuration, the thermistor is fitted and fixed in a state where the heat sensitive part is exposed to the recess, so that the heat sensitive part of the thermistor senses the temperature of the upper case of the toilet seat and is disposed below the lamp. Under the influence of the radiant energy from the heater, a temperature higher than the actual temperature of the upper case of the toilet seat will be detected, and the temperature of the toilet seat will be controlled before the temperature of the upper case rises sufficiently. There was a problem that the temperature of the toilet seat could not be controlled correctly, and therefore a comfortable heated toilet seat could not be provided.

  The present invention solves the above-described conventional problems, and an object thereof is to provide a comfortable heating toilet seat by reducing the influence of the radiant energy of the lamp heater on the thermistor and accurately detecting the temperature of the toilet seat. .

In order to solve the above-described conventional problems, the heating toilet seat according to the present invention includes a toilet seat having an upper body and a lower body and having a hollow portion therein, a heating element for heating the toilet seat, and a temperature of the toilet seat. A thermistor, wherein the thermistor in close contact with the back surface of the upper body and the vicinity of the outer periphery of the thermistor on the back surface are covered with a covering, and the covering body in the vicinity of the outer periphery of the thermistor has elasticity It is characterized by being sandwiched between.

  Accordingly, the thermistor of the toilet seat can reduce the influence of heat directly transmitted from the heating element, so that the temperature of the toilet seat can be accurately detected.

  As described above, the sanitary washing device of the present invention improves the fixing of the thermistor of the toilet seat, and thus the error due to the variation in the fixing state of the thermistor during assembly work or the deviation of the fixing position of the thermistor due to temperature change, etc. It can be more stable with respect to durability.

A first invention includes a toilet seat that includes an upper body and a lower body and has a hollow portion therein, a heating element that heats the toilet seat, and a thermistor that detects the temperature of the toilet seat. The thermistor in close contact with the back surface and the vicinity of the outer periphery of the thermistor on the back surface are covered with a covering body, and the covering body in the vicinity of the outer periphery of the thermistor is sandwiched with a holding body having elasticity.
As a result, the thermistor of the toilet seat is in close contact with the upper body of the toilet seat, and the lower side facing the heating element is covered with a covering, so that the influence of heat directly transmitted from the heating element can be reduced , weak thermistor instead of directly held down by the holding member, it is possible to prevent the structure and to order to suppress the surrounding vicinity of the cover, the temperature of the toilet seat can be accurately detected, further failure or erroneous detection of the thermistor Is.

According to a second invention, in the first invention, the sandwiching body is formed by bending a metal wire and forming a portion sandwiching the covering body fixing the thermistor in a substantially U shape, It is possible to realize a structure that suppresses the vicinity of the thermistor.

According to a third invention, in the first or second invention, the sandwiching body is provided on the lower frame body side, is formed by bending a metal wire, and the original portion of the attachment portion of the lower frame body is formed in a spiral shape Thus, an excessive force is not applied to the upper body and the lower body in the toilet seat assembly state, and the covering body can be stably held.

The fourth invention is the invention of claims 1 to 3, wherein the heating element extends through the interior of the quartz tube is disposed a filament, a structure of the lamp heater enclosing the inert gas, the lamp heater wherein Provided on the lower frame side, the covering was made of aluminum foil. As a result, the toilet seat upper body can be heated in a short time with the radiant energy radiated from the lamp heater. Therefore, it is sufficient to start energization immediately before using the heated toilet seat, and the electric power required to keep the toilet seat warm is obtained. A heating toilet seat that is unnecessary and has a high energy saving effect can be provided. And since the covering was made of aluminum foil, the influence of the radiation energy radiated from the lamp heater to the thermistor can be reduced, and the temperature of the toilet seat can be detected reliably.

  According to a fifth invention, in any one of the first to fourth inventions, by forming at least part of the upper body of the toilet seat with a metal material, it is possible to form a thin upper body part, In addition, a metal toilet seat with high thermal conductivity can provide a comfortable heating toilet seat that raises the temperature in a short period of time and has a low temperature drop.

  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.

(Embodiment 1)
FIG. 1 shows a perspective view of the entire heated toilet seat according to Embodiment 1 of the present invention, FIG. 2 shows a perspective view of the toilet seat, FIG. 3 shows a bottom view of a part of the lower body of the toilet seat, and FIG. FIG. 5 is a sectional view of the thermistor fixing structure portion in the toilet seat, FIG. 5 is a perspective view of the internal structure of the lower body of the toilet seat, and FIG. 6 is a detailed perspective view of the holding body.

  As shown in the drawing, in the heating toilet seat according to the present embodiment, a toilet seat 2 and a toilet lid 3 that are openable and closable in the vertical direction are pivotally supported on a main body 1 having a resin exterior installed at the rear. A lamp heater 4 is incorporated in the toilet seat 2 as a heating element for heating and keeping the toilet seat 2 warm. Further, a local cleaning means (not shown) for cleaning the local part and a lamp heater 4 for heating the toilet seat 2 and a control means (not shown) for controlling the local cleaning means are installed inside the main body 1.

  The toilet seat 2 has a configuration in which a metal upper body 5 and a resin lower body 6 are joined vertically to form a hollow portion inside. FIG. 3 shows a bottom view of the toilet seat 2 as viewed from below. The left half shows a state where the lower body 6 of the toilet seat 2 is present, and the right half shows a state where the lower body 6 of the toilet seat 2 is absent. On the inner surface of the upper body 5 shown by the right half, a temperature detection thermistor 7 on the toilet seat surface is fixed by a covering 8. The cover 8 has a configuration in which an adhesive is attached to the back surface of the aluminum foil, and the thermistor 7 can be held in a temporarily fixed state only by the cover 8.

  On the other hand, as shown in FIG. 5, a reflecting plate 9 formed of an aluminum plate is installed around the entire circumference of the lower body 6 inside the lower body 6. Two letter-shaped lamp heaters 4 are installed over the entire circumference of the toilet seat 2 via a fixing member 10, and the lamp heater 4 is connected to a control means installed inside the main body 1 by a lead wire 11 to be connected to electric power. Is configured to be supplied. The lamp heater 4 has a filament disposed so as to penetrate the center of the quartz tube, and an inert gas is sealed inside the quartz tube.

  At a predetermined position of the reflector 9 that is just below the thermistor 7 fixed to the upper body 5 of the toilet seat 2, a clamping body 12 that clamps the covering 8 that holds the thermistor 7 is attached by an attachment screw 13. It is fixed.

  The clamping body 12 does not exert excessive force on the upper body 5 and the lower body 6 in the toilet seat assembly state, and stably holds the covering body 8 that holds the thermistor 7. In order to make it less susceptible to direct influence, it is formed by bending a thin metal wire with elasticity, and in particular, the original part is formed in a spiral to increase elasticity. It is easy to absorb the bending deformation caused by the load. In addition, a portion for sandwiching the covering 8 that fixes the thermistor 7 is formed in a substantially U shape, and the vicinity of the outer periphery of the covering 8 can be sandwiched. Thereby, the thermistor 7 which is weak against impact is not directly pressed by the sandwiching body 12, but a structure in which the vicinity of the periphery of the covering body 8 is pressed can prevent the thermistor 7 from being broken or erroneously detected.

  In the process of assembling the toilet seat 2, the thermistor 7 is temporarily attached to the upper body 5 of the toilet seat 2 with the cover 8, and the sandwiching body 12 is fixed to the reflector 9 of the lower body 6. By fitting 6, the sandwiching body 12 is in a state of sandwiching the vicinity of the periphery of the covering body 8, and the thermistor 7 can be securely attached to the back surface of the upper body 5.

In the case of the lamp heater 4 in which the heating element is a radiant heating element as in the above configuration, the covering 8 attached with the adhesive fixing the thermistor 7 is made of an aluminum foil that easily reflects the radiant energy. Thus, the direct heat absorption from the lamp heater 4 is reduced, and the thermistor can accurately detect the temperature of the upper body 5 of the toilet seat 2.

As described above, in the present embodiment, the thermistor of the toilet seat is formed by covering the thermistor in close contact with the back surface of the upper body and sandwiching the periphery of the covering body with the elastic sandwiching body. Is close to the upper body of the toilet seat, and the lower side facing the heating element is covered with a covering, which can reduce the influence of heat directly transmitted from the heating element, so the temperature of the toilet seat can be accurately detected Is something that can be done.
The heating element in the present embodiment employs a lamp heater, but the present invention is not limited to this, and the same effect can be obtained even if it is composed of a heating element such as a sheathed heater or a flexible heater wire. .

  In the present embodiment, the sandwiching body is formed of a thin metal wire, but is not limited thereto, and can be formed of a plate-shaped metal or a resin having heat resistance.

  Moreover, in this Embodiment, it was set as the structure which fixed the clamping body to the reflecting plate as an independent member, However, It is not restricted to this, A part of reflecting plate is cut and raised and it is comprised integrally with a reflecting plate. As a result, the number of members can be reduced, and the time and labor during assembly can be saved.

Moreover, in this Embodiment, although the clamping body was installed in the reflecting plate installed in the lower body , it is not restricted to this, It is also possible to install in the other part and upper body of a lower body .

As described above, since the heating toilet seat according to the present invention is a thermistor fixing method that accurately detects the temperature of the structure in contact with the human body, not only the heating toilet seat, but also a heating instrument that is used in direct contact with the human body, etc. It is considered that it can be applied to other uses.

The perspective view of the whole sanitary washing apparatus in Embodiment 1 of this invention The perspective view of the toilet seat in Embodiment 1 of this invention The bottom view which excised part of the lower body of the toilet seat in Embodiment 1 of this invention Sectional drawing of the thermistor fixing | fixed part of the toilet seat in Embodiment 1 of this invention The perspective view inside the lower body of the toilet seat in Embodiment 1 of this invention The perspective view which shows the detail of the attachment state of the clamping body in Embodiment 1 of this invention Cross section of a conventional heated toilet seat

2 Toilet seat 4 Heating element (lamp heater)
5 Upper body 6 Lower body 7 Thermistor 8 Cover 12 Tightening body

Claims (5)

A toilet seat composed of an upper body and a lower body and having a cavity inside,
A heating element for heating the toilet seat;
And a thermistor for detecting the temperature of the toilet seat,
Covering the thermistor in close contact with the back surface of the upper body and the vicinity of the outer periphery of the thermistor on the back surface with a covering,
A heating toilet seat , wherein the covering body in the vicinity of the outer periphery of the thermistor is sandwiched by a sandwiching body having elasticity. 2. The heating toilet seat according to claim 1, wherein the sandwiching body is formed by bending a metal wire and a portion sandwiching the covering body fixing the thermistor is formed in a substantially U shape . The heating toilet seat according to claim 1 or 2, wherein the sandwiching body is provided on the lower frame body side, is formed by bending a metal wire, and an original portion of an attachment portion of the lower frame body is formed in a spiral shape . The heating element extends through the interior of the quartz tube is disposed a filament, a structure of the lamp heater enclosing the inert gas, the lamp heater is provided on the lower frame side, wherein the cover member is made of an aluminum foil according Item 4. The heating toilet seat according to any one of Items 1 to 3. Heating seat according to at least part of the upper body of the toilet seat to claim 1 which is formed of a metal material.