JP2000300470A - Toilet seat heater - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a toilet seat heater capable of heating the surface of a toilet seat in a short period of time, keeping the temperature on the surface of the toilet seat uniform, and fixing a uniformly heating member to the seat frame easily. SOLUTION: This toilet seat heater 1 comprises a seat frame 4 made of resin, a radiator 5 disposed inside the seat frame 4, and a uniformly heating member 6 which is stuck to the inner surface 4a of the sitting side of the seat frame 4 for thermally connecting the radiator 5 and the seat frame 4. Projections 6c are formed on the contact surface 6b of the uniformly heating member 6 with the seat frame 4, and recesses 4c with which the projections 6c can be engaged are formed on the contact surface 4b of the seat frame 4 with the uniformly heating member 6. The uniformly heating member 6 is mounted on the inner surface 4a of the sitting side of the seat frame 4 by engaging the projections and the recesses.

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.

[0002]

2. Description of the Related Art A conventional heating toilet seat 1 'has a heater wire 11 (radiator 5) disposed inside a toilet seat 3' as shown in FIG. I have. In such a conventional heating toilet seat 1 ', a thick resin is used for the toilet seat frame 4'. However, since resin generally has a larger heat capacity than metal, it takes time to warm the entire toilet seat 3 '. Also, the power consumption was large. In addition, since the resin has a lower thermal conductivity than metal, the heat sink 5 ′
It took time for heat to reach the surface. Furthermore, since the shape of the toilet seat has a portion where heat is easily transmitted and a portion where heat is not easily generated, the temperature of the surface of the toilet seat 3 'is difficult to be uniform in a short time, and the inner surface 4a' of the toilet seat frame 4 'on the human body side is made of aluminum or the like. Dozens to hundreds of μm thick made of a material with high thermal conductivity
The temperature of the surface of the toilet seat 3 'is made uniform by attaching a sheet-like heat equalizing member 6' of a degree. However, since the effect of the sheet-like heat equalizing member 6 ′ is actually insufficient, the temperature of the surface of the toilet seat 3 ′ is made uniform by trial and error by adjusting the layout and the like of the radiator 5. Further, the fixing between the sheet-like heat equalizing member 6 'and the inner surface of the toilet seat frame 4' has been performed by the adhesive sheet.
'Is easy to deform, and since the toilet seat frame 4' is formed of a three-dimensional curved surface, there has been a problem that the attaching operation is very complicated.

[0003]

SUMMARY OF THE INVENTION The present invention has been made in view of the above points, and can heat a toilet seat surface in a short period of time, and can even out the temperature of the toilet seat surface. It is an object of the present invention to provide a heating toilet seat in which a heating member can be easily fixed to a toilet seat frame.

[0004]

A heating toilet seat 1 according to a first aspect of the present invention comprises a toilet seat frame 4 made of resin, a radiator 5 disposed therein, and an inner surface of the toilet seat frame 4 on the side of a human body. In the heating toilet seat 1 that is affixed to the heat radiator 5 and the toilet seat frame 4 and that thermally connects the radiator 5 and the toilet seat frame 4, a convex portion 6 c is provided on a contact surface 6 b of the heat equalizing member 6 with the toilet seat frame 4. A concave portion 4c in which the convex portion 6c can be fitted is provided on a contact surface 4b of the toilet seat frame 4 with the heat equalizing member 6, and the concave portions 4c are fitted to each other so that the heat equalizing member 6 is attached to the human body seating side inner surface 4a of the toilet seat frame 4. It is characterized by being arranged.

A heating toilet seat 1 according to claim 2 of the present invention.
In addition to the configuration of claim 1, the heat radiator 5 is fixedly contacted to the lower surface 6d of the heat equalizing member 6, and a plurality of convex portions 6c are provided on the contact surface 6b of the heat equalizing member 6 with the toilet seat frame 4. The height of the convex portion 6c is increased in proportion to the distance from the radiator contact portion 6e.

[0006] A heating apparatus 1 according to claim 3 of the present invention.
In addition to the configuration of claim 1, the heat radiator 5 is fixedly contacted to the lower surface 6d of the heat equalizing member 6, and a plurality of convex portions 6c are provided on the contact surface 6b of the heat equalizing member 6 with the toilet seat frame 4. The distance between the protrusions 6c is increased in proportion to the distance from the radiator contact portion 6e.

[0007] A heating device 1 according to claim 4 of the present invention.
In addition to the configuration of the first aspect, by forming a cross section of the contact surface 6b of the heat equalizing member 6 with the toilet seat frame 4 in a corrugated shape, a plurality of convex portions 6c are formed on the upper surface 6a of the heat equalizing member 6. The heat radiator 5 is characterized in that it is formed and the radiator 5 is fixed in contact with the apex of the convex portion 6c formed on the lower surface 6d of the heat equalizing portion 6.

[0008] A heating apparatus 1 according to claim 5 of the present invention.
Is characterized in that, in addition to the configuration of any one of claims 1 to 4, a convex portion 6c provided on the heat equalizing member 6 is formed by press working.

A heating apparatus 1 according to claim 6 of the present invention.
Is characterized in that, in addition to the structure of any one of claims 1 to 5, a heat equalizing member 6 in which a key-shaped convex portion 6c is formed on a contact surface 6b with the toilet seat frame 4 is insert-molded in the toilet seat frame 4. It is assumed that.

[0010]

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described with reference to FIGS.

FIGS. 1 and 2 show an embodiment of the present invention.
Shown in As shown in FIG. 2, the heating toilet seat 1 is installed on a toilet 7, and a main body 2 in which a power supply circuit 8 and a control circuit 9 are incorporated.
And a toilet seat 3 having a substantially hollow circular shape. Toilet seat 3
It is composed of a toilet seat frame 4, a radiator 5, and a heat equalizing member 6. The toilet seat frame 4 forms an outer shell of the toilet seat 3 and is made of a resin (for example, polypropylene or ABS), and has a thickness of about 2 to 3 mm so as to withstand a sitting load of a human body. The heat equalizing member 6 is provided on the inner surface 4a of the toilet seat frame 4 on the side of the human body, and the outer shape is formed by pressing to match the curved shape of the upper inner surface of the toilet seat frame 4, and at the same time, the toilet seat frame 4 is formed. A plurality of projections 6c are formed on the contact surface 6b. When the heat equalizing member 6 is fixed to the inner surface 4a of the toilet seat frame 4 on the human body seating side by bonding or the like, a plurality of concave portions 4c that can be fitted with the convex portions 6c are provided on the contact surface 4b of the toilet seat frame 4 with the heat equalizing member 6. The heat equalizing member 6 is fitted to the toilet seat frame 4
Is disposed on the inner surface 4a of the human body seating side. The heat equalizing member 6 is made of a metal having a high thermal conductivity (for example, aluminum or the like), and has a thickness of about several hundred μm so as to maintain the shape after the above processing. The radiator 5 is a heater wire 1 coated with vinyl chloride.
As shown in FIG. 2, it is formed in the toilet seat frame 4 in two rows in a U-shape, and is fixed to the lower surface 6d of the heat equalizing member 6 by bonding or the like. One end of the heater wire 11 is connected to the power supply circuit 8 and the control circuit 9 in the main body 2 via the electric wiring 10 and is fixed on the upper portion of the heater wire 11 by Joule heat generated in the heater wire 11 when energized. The heat equalizing member 6 to be heated is heated. The heat generated from the radiator 5 is diffused by the heat equalizing member 6 to the entire toilet seat frame 4 to heat the surface of the toilet seat 3. In addition, toilet seat 3
A thermistor (not shown) is built therein, detects the temperature of the toilet seat 3, and controls the energization of the heater wire 11 by the control circuit 9.

As described above, the convex portion 6c is provided on the contact surface 6b of the heat equalizing member 6 with the toilet seat frame 4, and the convex portion 6c can be fitted on the contact surface 4b of the toilet seat frame 4 with the heat equalizing member 6. The concave portion 4c is provided, the two are fitted to each other, and the heat equalizing member 6 is disposed on the inner surface 4a of the toilet seat frame 4 on the human body seating side, so that the distance between the convex portion 6c of the heat equalizing member 6 and the surface of the toilet seat 3 is reduced. Since it becomes closer, the heat generated by the radiator 5 can be quickly transmitted to the surface of the toilet seat 3, so that the time until the entire toilet seat 3 warms can be shortened. Further, by fitting the convex portion 6c of the heat equalizing member 6 and the concave portion 4c of the toilet seat frame 4, the heat equalizing member 6 is fixed to the toilet seat frame 4.
Can be easily arranged, and the productivity of the heating toilet seat 1 can be increased.

Next, another embodiment of the present invention is shown in FIG. In this example, the heat radiator 5 is contact-fixed to the lower surface 6d of the heat equalizing member 6 as in the above-described example, and a plurality of convex portions 6c having a height difference are provided on the contact surface 6b of the heat equalizing member 6 with the toilet seat frame 4. At the same time, each convex portion 6 is provided on the contact surface 4b of the toilet seat frame 4 with the heat equalizing member 6.
A concave portion 4c in which the convex portion 6c can be fitted is provided in accordance with the height difference of c. However, the height difference between the respective convex portions 6c of the heat equalizing member 6 is determined by the contact portion between the heat radiator 5 disposed on the lower surface 6d of the heat equalizing member 6 and the lower surface 6d of the heat equalizing member 6, that is, the heat radiator contact portion. It is provided in proportion to the distance from 6e to the convex portion 6c.
With such a configuration, the larger the amount of heat received per unit time from the radiator 5, the closer the protrusion 6 c to the radiator 5 is, the farther the distance from the surface of the toilet seat 3 is. While it takes time to transmit the heat, the convex 6c, which is smaller in the amount of heat received per unit time from the heat radiator 5, is closer to the surface of the toilet seat 3 as the protrusion 6c is farther from the heat radiator, so that the time to transfer heat to the surface of the toilet seat 3 is faster. Therefore, the surface temperature of the entire toilet seat 3 can be made uniform.

Next, another example of the embodiment of the present invention is shown in FIG. In this example, the radiator 5 is fixed to the lower surface 6d of the heat equalizing member 6 in the same manner as in the above example, and a plurality of convex portions 6c having the same height are provided on the contact surface 6b of the heat equalizing member 6 with the toilet seat frame 4. At the same time, the convex portion 6 is provided on the contact surface 4b of the toilet seat frame 4 with the heat equalizing member 6.
c is provided with a concave portion 4c that can be fitted with the c. However, the interval between the adjacent protrusions 6c, 6c of the heat equalizing member 6 is made dense in proportion to the distance from the radiator contact portion 6e to the protrusions 6c, 6c. With such a configuration, the number of the protrusions 6c per unit area decreases as the location of the heat equalizing member 6 closer to the heat radiator receives a larger amount of heat received from the heat radiator 5 per unit time. While the heat transfer area to the heat sink is small, the place of the heat equalizing member 6 far from the heat radiator 5 that receives a small amount of heat per unit time from the heat radiator 5 has a larger number of convex portions 6c per unit area. Since the heat transfer area to the frame 4 increases, the surface temperature of the entire toilet seat 3 can be made uniform.

Next, another example of the embodiment of the present invention is shown in FIG. In this example, the contact surface 4b of the heat equalizing member 6 with the toilet seat frame 4 is used.
Is formed in a corrugated shape so that a plurality of convex portions 6c are formed on the upper surface 6a of the heat equalizing member 6 and the toilet seat frame 4
A concave portion 4c that can be fitted to the convex portion 6c is provided on the contact surface 4b with the heat equalizing member 6, and the radiator 5 contacts the vertex of the convex portion 6c formed on the lower surface 6d of the heat equalizing member 6. It is fixed. Even with such a configuration, the heat generated by the radiator 5 can be quickly transmitted to the surface of the toilet seat 3 by the convex portion 6c of the heat equalizing member 6, so that the time until the entire toilet seat 3 warms can be reduced. it can. In addition, by fixing the heat radiator 5 to the apex of the convex portion 6c formed on the lower surface 6d of the heat equalizing member 6, the toilet seat frame 4 can be prevented from being locally heated.

In the above example, the radiator 5 is connected to the heater wire 1.
1, but a heat pipe connected to a heat source may be used.

Next, another example of the embodiment of the present invention is shown in FIG. In this example, the protrusion 6 provided on the heat equalizing member 6 of the above four examples is used.
1 shows a heating toilet seat 1 (excluding the main body 2) formed by pressing c. Hereinafter, a method of manufacturing the heating toilet seat 1 will be described step by step. First, the heat equalizing member 6 is formed into an outer shape conforming to the curved shape of the inner surface of the upper toilet seat frame 4d by press molding, and at the same time, the contact surface 6b with the upper toilet seat frame 4d is formed.
Then, a plurality of convex portions 6c are formed (FIG. 6A). Next, the radiator 5 is fixed to the lower surface 6d of the heat equalizing member 6 by bonding or the like (FIG. 6B). Subsequently, the outer side of the toilet seat frame upper side 4d is molded into an outer shape on the upper side of the toilet seat 3 by resin molding, and the inner side is molded according to the shape of the contact surface 4b with the heat equalizing member 6, and the convex portion is formed on the contact surface 4b. The recess 4c into which 6c can be fitted.
To form Hooks 4h, 4h for locking the inner peripheral portion 6f and the outer peripheral portion 6g of the heat equalizing member 6 to the inner side of the lower end of the inner peripheral wall 4f and the inner lower end of the outer peripheral wall 4g are provided on the upper side 4d of the toilet seat frame.
Is provided. And a heat equalizing member 6 to which the heat radiator 5 is fixed.
Is fitted into the concave portion 4c of the upper toilet seat frame 4d, and the inner peripheral portion 6f and the outer peripheral portion 6g of the heat equalizing member 6 are inside the lower end of the inner peripheral portion 4f of the upper toilet seat frame 4d and the lower inside of the outer peripheral portion 4g. By fixing to the hooks 4h, 4h provided on the upper surface, the heat equalizing member 6 to which the radiator 5 is fixed is fixed to the inner surface 4a of the upper side 4d of the toilet seat frame on the side of the human body (FIG. 6C). Thereafter, the upper part 4d of the toilet seat frame and the lower side 4e of the toilet seat frame are combined and fixed by bonding or the like, thereby completing the heating toilet seat 1 (FIG. 6D). By forming the protrusions 6c provided on the heat equalizing member 6 by press working in this way, the above-described four examples of the heat equalizing member 6 can be easily manufactured. Further, since the convex portion 6c of the heat equalizing member 6 and the concave portion 4c of the toilet seat frame 4 are fitted to each other and locked to the hooks 4h, 4h, the heat equalizing member 6 is fixed to the toilet seat frame 4.
The work of arranging the heat equalizing member 6 on the toilet seat frame 4 is facilitated, and the productivity of the heating toilet seat 1 can be increased.

Next, another example of the embodiment of the present invention is shown in FIG. This example shows a heating toilet seat 1 (excluding the main body 2) formed by insert-molding a heat equalizing member 6 having a key-shaped convex portion 6c formed on an upper surface 6a into a toilet seat frame 4. Hereinafter, a method of manufacturing the heating toilet seat 1 will be described step by step. First,
The heat equalizing member 6 is formed into a contour conforming to the curved surface shape inside the upper toilet seat frame 4d by press molding, and a plurality of key molds are formed on the contact surface 6b with the upper toilet seat frame 4d by cutting and raising after punching. A convex part 6c having a shape is formed. Next, when the upper toilet seat frame 4d is injection-molded, the heat equalizing member 6 is inserted between the molds so that the key-shaped convex portion 6c is embedded in the upper toilet seat frame 4d. A member in which the 4d and the heat equalizing member 6 are integrated is manufactured. Then, after fixing the radiator 5 to the lower surface 6d of the heat equalizing member 6 of this member,
The upper part 4d of the toilet seat frame and the lower side 4e of the toilet seat frame are combined and fixed by bonding or the like, thereby completing the heating toilet seat 1. The heat equalizing member 6 having the key-shaped convex portion 6c formed on the upper surface 6a as described above.
By performing insert molding on the toilet seat frame 4, the work of arranging the heat equalizing member 6 on the toilet seat frame 4 is facilitated, and the productivity of the heating toilet seat 1 can be increased.

[0019]

According to the first aspect of the present invention, since the distance between the surface of the toilet seat and the heat equalizing member is short at the convex portion of the heat equalizing member, the heat generated by the heat radiator can be reduced quickly. Since it can be transmitted to the toilet seat surface, the time until the entire toilet seat warms can be shortened. Also, by fitting the convex part of the heat equalizing member and the concave part of the toilet seat frame, the work of arranging the heat equalizing member on the toilet seat frame is facilitated because the heat equalizing member is fixed to the toilet seat frame. Productivity can be increased.

According to the second aspect of the present invention, in addition to the effects of the first aspect, a convex portion close to the radiator, which receives a large amount of heat per unit time from the radiator. The longer the distance to the toilet seat surface, the longer it takes to transfer heat to the toilet seat surface, while the smaller the amount of heat received per unit time from the radiator, the further away from the radiator the distance to the toilet seat surface , The time required for heat to be transmitted to the toilet seat surface is increased, so that the surface temperature of the entire toilet seat can be made uniform.

According to the third aspect of the present invention, in addition to the effect of the first aspect, the heat equalization near the heat radiator, which receives a large amount of heat per unit time from the heat radiator. Since the number of protrusions per unit area decreases as the location of the member, the heat transfer area to the toilet seat frame decreases, while the amount of heat received per unit time from the radiator is small, and the location of the heat equalizing member far from the radiator The larger the number of projections per unit area, the larger the heat transfer area to the toilet seat frame, so that the surface temperature of the entire toilet seat can be made uniform.

Further, in the invention according to claim 4 of the present invention, in addition to the effect of the invention according to claim 1, the heat generated by the radiator is quickly transferred to the toilet seat surface by the convex portion of the heat equalizing member. Since it can be transmitted, the time until the entire toilet seat warms can be shortened. Further, by fixing the heat radiator to the apex of the convex portion formed on the lower surface of the heat equalizing member, it is possible to prevent the toilet seat frame from being locally heated.

According to a fifth aspect of the present invention, in addition to the effects of the first to fourth aspects, the convex portion provided on the heat equalizing member is formed by press working. Thus, the heat equalizing member according to any one of claims 1 to 4 can be easily manufactured.

According to a sixth aspect of the present invention, in addition to the effects of the first aspect, a heat equalizing member having a key-shaped hook formed on an upper surface. Is inserted into the toilet seat frame, the work of disposing the heat equalizing member on the toilet seat frame is facilitated, and the productivity of the heating toilet seat can be increased.

[Brief description of the drawings]

FIG. 1 shows an example of an embodiment of the present invention,
It is a cross section of a part of heating toilet seat.

FIG. 2A is a top view of the heating toilet seat device, and FIG.
It is a side view of a heating toilet seat apparatus.

FIG. 3 shows another example of the embodiment of the present invention, and is a cross-sectional view of a part of a heating toilet seat.

FIG. 4 shows another example of the embodiment of the present invention, and is a cross-sectional view of a part of a heating toilet seat.

FIG. 5 shows another example of the embodiment of the present invention, and is a cross-sectional view of a part of a heating toilet seat.

FIG. 6 shows another example of the embodiment of the present invention, and (a) to (d) are manufacturing process diagrams of the heating toilet seat.

FIG. 7 shows another example of the embodiment of the present invention, and is a cross-sectional view of a part of an integrated product formed after insert molding of a heat equalizing member on the upper side of a toilet seat frame.

FIG. 8 shows a conventional example, and is a cross-sectional view of a part of a heating toilet seat.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Heating toilet seat 4 Toilet seat frame 4a Human body seating side inner surface 4b Contact surface 4c recess 5 Heat radiator 6 Heat equalizing member 6a Upper surface 6b Contact surface 6c Convex portion 6d Lower surface 6e Heat radiator contact portion

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Komatsu Illumination 1048 Kazuma Kadoma, Osaka Pref.Matsushita Electric Works, Ltd. 72) Inventor Tetsuro Kawamoto 1048 Kazuma Kadoma, Kadoma City, Osaka Pref. (72) Inventor Setsuharu Nakatsuka 1048 Kadoma Kadoma, Kadoma City, Osaka Pref. 1048 Okadoma, Kadoma, Kadoma City, Matsushita Electric Works Co., Ltd. Address Matsushita Electric Works Co., Ltd. F term (reference) 2D037 AA11 AD03

Claims (6)

[Claims] 1. A toilet seat frame made of a resin, a radiator disposed inside the toilet seat frame, and a human body seating side inner surface of the toilet seat frame,
In a heating toilet seat made of a heat equalizing member that thermally connects a heat radiator and a toilet seat frame, a convex portion is provided on a contact surface of the heat equalizing member with the toilet seat frame, and the contact surface of the toilet seat frame with the heat equalizing member is provided on the contact surface. A heating toilet seat, wherein a concave portion in which a convex portion can be fitted is provided, and both are fitted to each other, and a heat equalizing member is disposed on the inner surface of the toilet seat frame on the side of the human body. 2. A radiator is fixedly contacted to a lower surface of the heat equalizing member,
The heating toilet seat according to claim 1, wherein a plurality of convex portions are provided on a contact surface of the heat equalizing member with the toilet seat frame, and a height of each convex portion is increased in proportion to a distance from the heat radiator contact portion. . 3. A radiator is fixedly contacted to a lower surface of the heat equalizing member,
The heating toilet seat according to claim 1, wherein a plurality of convex portions are provided on the contact surface of the heat equalizing member with the toilet seat frame, and the intervals between the convex portions are made denser in proportion to the distance from the radiator contact portion. . 4. A cross section of the contact surface of the heat equalizing member with the toilet seat frame is formed in a corrugated shape, so that a plurality of convex portions are formed on the upper surface of the heat equalizing member and the lower surface of the heat equalizing member is formed. The heating device according to claim 1, wherein a heat radiator is fixedly contacted to a vertex of the convex portion. 5. The heating toilet seat according to claim 1, wherein the projection provided on the heat equalizing member is formed by press working. 6. The heating toilet seat according to claim 1, wherein a heat equalizing member having a key-shaped convex portion formed on a contact surface with the toilet seat frame is insert-molded in the toilet seat frame.