JP2007301069A - Toilet seat device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a comfortable, and highly energy-saving toilet seat device without using unnecessary electric power for heating the toilet seat, capable of absorbing an impact caused when a user sits thereon and allowing the user to sit in comfort thereon for a long period of time. <P>SOLUTION: This toilet seat comprises at least partially an elastic layer 13 which can be deformed to be fitted along the body shape of a user, a plurality of PTC heaters 12, and power source electrodes 28 for supplying electric power to those PTC heaters 12. One electrode 28 is disposed near the inner circular edge 6a of the toilet seat 6, while the other electrode is disposed near the outer circular edge 6b of the toilet seat 6, and the source electrodes 28 are connected with the plurality of PTC heaters 12. This structure reduces a burden on a human body when seated on the toilet seat 6, preventing damage to PTC heaters 12 or any changes in its property when the elastic layer 13 is deformed. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a toilet seat heater provided on an upper surface of a toilet bowl and having an elastic layer that is deformed so as to conform to a user's body shape.

  Conventionally, as a heating toilet seat device of this type, a configuration has been proposed in which a string-like heater is disposed on the back surface of a synthetic leather skin material, and a low-resilience foamed resin is disposed below them (for example, Patent Documents). 1).

FIG. 9 shows a cross section of a conventional heated toilet seat device described in Patent Document 1. In FIG. As shown in FIG. 8, the skin material 2, the string-like heating element 3, the cushion layer 4, and the synthetic resin base material 5 are configured in this order from the surface of the toilet seat 1 that contacts the user's skin.
JP 2005-102809 A

  However, when the toilet seat heater is disposed between the skin material and the soft resin layer and the shape of the toilet seat heater is a string heater, a surface that is convex only at the string heater is formed on the toilet seat when seated, In addition to the feeling of bumpiness, it was lacking in practicality. Moreover, since the toilet seat part comprised with the cushion material was too soft, it became inadequate in rigidity and had the subject that a user's weight could not be fully supported.

  The present invention solves the above-described problems, absorbs an impact at the time of sitting, has a good sitting comfort, and can reduce a burden on a human body even when sitting for a long time. Further, it is possible to suppress the influence on the heater due to the deformation of the soft resin layer, and to stabilize the performance of the heater and improve the durability.

  In order to solve the above-described conventional problems, a toilet seat device according to the present invention includes an elastic body layer that deforms at least partially along a user's body shape, a plurality of PTC heaters, and a power source that supplies power to the PTC heaters. An electrode is provided, one of the power supply electrodes is disposed in the vicinity of the opening edge of the toilet seat, the other is disposed in the vicinity of the outer peripheral edge of the toilet seat, and the plurality of PTC heaters are connected to the power supply electrode.

  As a result, it is possible to reduce the burden on the human body when seated on the toilet seat, and to prevent the PTC heater from being damaged or changing its characteristics even when the elastic layer is deformed.

  The heating toilet seat device according to the present invention can improve the stability and durability of the performance in the heating toilet seat device provided with the elastic body layer by suppressing damage to the PTC heater due to deformation of the elastic body layer and changes in characteristics. it can.

A first aspect of the present invention is a heating toilet seat mounted on a toilet bowl, wherein at least a part of the elastic body layer deforms along the body shape of the user, a plurality of PTC heaters having positive temperature coefficient characteristics, and the PTC heater. A power supply electrode for supplying power, the power supply electrode is composed of a pair of electrodes having different polarities, one of the power supply electrodes is disposed in the vicinity of the opening edge of the toilet seat, and the other is disposed in the vicinity of the outer peripheral edge of the toilet seat, By adopting a configuration in which the plurality of PTC heaters are connected to the power supply electrodes, the plurality of PTC heaters are connected in parallel to the power supply electrodes, and heating of the entire front seat stops even when some PTC heaters fail. In other words, it is possible to provide a toilet seat device with high response capability.

  Further, by dividing the PTC heater into a plurality of parts and arranging them on the toilet seat, it becomes difficult to cause wrinkles on the toilet seat surface, the burden on the user from the seating surface can be reduced, and a comfortable seat can be provided.

  In the second invention, in particular, since the power supply electrode of the first invention is formed in an annular shape, it becomes possible to supply power to all the PTC heaters even if the power supply electrode is disconnected at one place. It is possible to provide a toilet seat device that is difficult to perform and highly durable.

  According to a third invention, in particular, the PTC heater of the first or second invention is formed by printing a PTC electrode and a PTC resistor on a flexible sheet, and the PTC electrode is a pair of main electrodes arranged opposite to each other. An electrode and a plurality of branch electrodes led out alternately toward the main electrodes opposed to each other from the opposing main electrode, and by arranging the branch electrodes in a direction substantially parallel to the opening edge of the toilet seat, When the user is seated on the toilet seat, the elastic body layer mainly bends in a direction substantially perpendicular to the opening edge of the toilet seat opening in the same direction as the main electrode, and is substantially perpendicular to the direction of the bend. Since the branch electrode is disposed on the branch electrode, the branch electrode is hardly affected by the bending of the elastic layer, can be prevented from damage to the branch electrode, and the resistance force against the elongation of the PTC heater is weak. The direction of the branch electrode should be the direction with less deformation. Will be able to be, PTC heater can be prevented that damage or characteristic changes.

  According to a fourth aspect of the invention, in particular, in any one of the first to third aspects of the invention, the branch electrodes are arranged at different intervals depending on the toilet seat portion, so that the resistance value is high in a portion where the branch electrode interval is wide. Therefore, the calorific value is reduced, and the part where the distance between the branch electrodes is narrow can reduce the resistance value and increase the calorific value. In the peripheral area, etc., the distance between the branch electrodes is widened, so that sufficient heat is transmitted to the human body at the part where the human body comes in contact, and comfortable heating is performed, and unnecessary heat is not supplied to the peripheral area where the human body does not contact Therefore, energy saving can be improved.

  In the fifth invention, in particular, in any one of the first to third inventions, the PTC resistor is configured to contain carbon and a resin, and the mixing ratio of the carbon and the resin is different depending on the toilet seat part. Therefore, the part where the carbon compounding ratio is reduced increases the resistance value, so the calorific value decreases, and the part where the carbon compounding ratio increases, the resistance value decreases and the calorific value can be increased. By increasing the blending ratio of the parts that come into contact with the human body and reducing the blending ratio of carbon in the peripheral areas where the human body does not come into contact, sufficient heat is transferred to the human body at the parts that come into contact with the human body, resulting in comfortable heating. Energy savings can be improved because unnecessary heat is not supplied to the peripheral portion that does not contact.

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

(Embodiment 1)
1 is a perspective view of a toilet seat apparatus according to Embodiment 1 of the present invention, FIG. 2 is a sectional view of the toilet seat, FIG. 3 is an internal configuration diagram of a PTC heater that is a planar toilet seat heater, and FIG. (A), (b) shows the schematic diagram of a stretchable PTC resistor, FIG. 5 shows the top view which shows the printing pattern of a power supply electrode and a PTC heater, and FIG. 6 shows the graph of the temperature characteristic of a toilet seat. is there.

  As shown in the figure, the toilet seat device according to the first embodiment of the present invention is a heated toilet seat that heats a seating surface, and includes a toilet seat 6, a toilet lid 7, and a main body 8 as main components. .

  Inside the main body 8, a heat exchange tank (not shown) for creating and storing hot water for washing, a washing nozzle (not shown) for washing the local part, a solenoid valve (not shown) for controlling the ejection of washing water, and washing A drying / drying unit (not shown) for drying the local portion of the back, a deodorizing unit (not shown) for deodorizing the odor of the defecation, a control device 9 for controlling each function of the toilet seat device, and the like are incorporated. By applying the hot water discharged from the washing nozzle to the local area, the dirt due to the toilet can be washed away.

  In this toilet seat device, the main body 8 placed on the upper surface of the toilet bowl 10 is fixed to the toilet bowl 10 via rubber bushes and bolts, and the toilet seat 6 and the toilet lid 7 are pivotally supported by the main body 8.

  As shown in FIG. 2, the toilet seat 6 is a surface that comes into contact with the user's skin from the top, and is a soft and deformable soft sheet material that fits the user's buttocks, and a surface-shaped PTC that can be bent and deformed. The heater 12, an elastic layer 13 made of a soft resin material having elasticity, a reinforcing member 14 made of a hard resin molded product having elasticity, and a toilet seat lower member 15 made of a hard resin molded product are configured as main members.

  The reinforcing member 14 and the toilet seat lower member 15 are screwed together with a screw 16, and the reinforcing member 14 has a flat portion 17 in the middle for screwing, and both sides are raised as convex portions 18. The end 19 is provided with claws at regular intervals in the longitudinal direction so as to be fitted to the end of the toilet seat lower member 15.

  The reinforcing member 14 is provided on the assumption that the toilet seat lower member 15 alone cannot support the weight due to insufficient rigidity. In the conventional toilet seat, the upper and lower resin members are U-shaped on both the upper and lower sides, and the upper and lower U-shaped parts and the open surface of the inverted U-shaped part are integrally formed as a mating surface to support the weight. Yes. However, in the present embodiment, since the upper member is an elastic body layer made of a soft resin, the toilet seat lower member 15 and the reinforcing member 14 are configured to support the weight as a countermeasure against the inability to support the hard resin member in combination. It is a thing.

  Human body detection means 20 for detecting that a person has entered the toilet by detecting the temperature of the human body or detecting reflected light is installed on the opposite side of the toilet (not shown) where the door is opened. The receiving means 21 for receiving a signal from the human body detecting means 20 is disposed on the sleeve portion of the main body 8 and is electrically connected to the control device 9. When the human body detecting means 20 is not detecting a human body, the toilet seat 6 is not normally energized, or when the room temperature is extremely low, by energizing around 10 W, the toilet seat surface temperature is kept at about 15 ° C. to 20 ° C. is there.

  In the present embodiment, a PP film is used as the skin material 11. The skin material 11 may be a film made of another material as long as it is made of a thin film of 0.1 mm or less, has chemical resistance and has a small heat capacity.

  As shown in FIG. 5, the planar PTC heater 12 is configured by printing a stretchable PTC resistor 23 on a flexible sheet 22 that is substantially similar to the toilet seat 6, and a silver paste so as to overlap the PTC resistor 23. The electrode 24 mainly composed of the above is printed and sandwiched between different flexible sheets 25.

As shown in FIGS. 4A and 4B, the stretchable PTC resistor 23 is composed of particles 26 in which resin and carbon are mixed in an elastomer 27 so that the composition is destroyed even when stretched. It has characteristics that do not. FIG. 4A is a schematic diagram showing the state of the particles 26 in a state where no stress is applied to the PTC heater 23, and FIG. 4B is a case where a stress is applied to the PTC heater when the user is seated on the toilet seat 7, for example. It is a schematic diagram which shows the deformed state.

  The resistance value of the PTC resistor 23 can be changed by changing the blending ratio of the resin and carbon, and the maximum temperature and the rising speed of the temperature can be changed. Since the resistance value increases and the maximum temperature decreases when carbon is decreased, the temperature is decreased by reducing the carbon content of the PTC resistor 23 corresponding to the peripheral part of the toilet seat, which is less frequently contacted with the human body, so as to save energy. Is possible.

  FIG. 5 shows details of the printed pattern of the PTC resistor 23 and the electrode 24. In the present embodiment, the power supply electrode 28 and the PTC heater 12 are formed on one flexible sheet 22 in the same process, thereby improving the production efficiency. As shown in FIG. 5, wide annular power supply electrodes 28a and 28b are arranged in the vicinity of the opening edge 22a and the outer peripheral edge 22b of the flexible sheet 22 substantially similar to the toilet seat 6 so as to face each other. The power supply electrodes 28 a and 28 b are provided for supplying power to the PTC heater 12. When the PTC heater 12 is incorporated in the toilet seat 6, the power supply electrodes 28 a and 28 b are disposed in the vicinity of the opening edge 6 a and the outer peripheral edge 6 b of the toilet seat 6.

  The main electrodes 29a and 29b of the PTC heater 12 are disposed so as to face the power supply electrodes 28a and 28b, respectively, and a plurality of main electrodes 29a and 29b are alternately arranged in a substantially right angle direction toward the other main electrode. The branch electrodes 30a and 30b are led out to form a comb-like electrode. The main electrodes 29a and 29b are arranged in a direction substantially perpendicular to the opening edge 22a of the flexible sheet 22, so that the branch electrodes 30a and 30b are substantially parallel to the opening edge 22a, and are connected to the toilet seat 6 of the PTC heater 12. In the assembled state, the branch electrodes 30 a and 30 b are disposed substantially parallel to the opening edge 6 a of the toilet seat 6.

  The power supply electrode 28a, the main electrode 29a, and the branch electrode 30a, and the power supply electrode 28b, the main electrode 29b, and the branch electrode 30b are electrically connected, and the power supply electrode 28a on the opening edge 22a side is a positive electrode and an outer peripheral edge. The power supply electrode 28b on the 22b side is a negative electrode.

  A PTC resistor 23 having PTC characteristics is printed so as to be overlaid on the entire range where the branch electrodes 30a and 30b are disposed.

  The main electrodes 29a and 29b, the branch electrodes 30a and 30b, and the PTC resistor 23 form one PTC heater 12, and the PTC heaters are arranged at almost equal intervals over the entire circumference of the power supply electrodes 28a and 28b. .

  The power supply electrodes 28a and 28b are connected to the control device 9 via the lead wires 31, and the current supplied from the control device 9 is PTC via the power supply electrodes 28a and 28b, the main electrodes 29a and 29b, and the branch electrodes 30a and 30b. Power is supplied to the resistor 23.

  The supplied PTC resistor 23 generates heat with high power when the temperature is low, such as at the time of rising, and is controlled to a predetermined temperature by self-temperature control that automatically becomes low power when the temperature increases. By uniformly disposing the PTC resistor 23, the main electrodes 29a and 29b, and the branch electrodes 30a and 30b on the seating surface, a uniform heating feeling is obtained with respect to the buttocks at the time of seating.

  Further, since the branch electrodes 30a and 30b are substantially parallel to the circumferential direction of the toilet seat, they are in a direction substantially perpendicular to the direction in which the seating portion bends when sitting, and the PTC resistor 23 is not destroyed and is durable. Excellent.

  The PTC heater 12 having the above configuration has a heater capacity of about 200 W to 500 W, and is heated at a voltage of AC 30 V or less or DC 45 V or less. When the temperature is low, the PTC heater 12 has a PTC characteristic (positive temperature coefficient characteristic) in which carbon chains overlap and current easily passes, and when the temperature is high, the chain of conductive particles is broken to make it difficult for current to flow. ing. That is, it has a heater characteristic (automatic temperature control characteristic) that generates heat with high power when the temperature is low, such as at the start immediately after energization, and automatically becomes low power when the temperature is high.

  The elastic layer 13 is made of polyurethane foam and has a closed cell structure in which the internal bubbles are not connected to each other, which prevents gas from entering and exiting and has a cushioning property by air, but has an appropriate cushioning property. Any open cell structure may be used. Further, the elastic layer 13 is formed so as to cover the periphery of the reinforcing member 14 so that the collar portion does not directly contact the reinforcing member 14 when seated.

  About the toilet seat apparatus comprised as mentioned above, the operation | movement and an effect | action are demonstrated below.

  First, when a person enters the toilet for use, the human body detecting means 20 detects the human body and transmits the signal to the receiving means 21 provided in the main body 8. The control device 9 energizes the planar PTC heater 12 by the signal received by the receiving means 21 and performs a rapid start-up. The PTC heater 12 generates heat with high power when the temperature is low, such as when it starts up, and automatically becomes low power when the temperature rises. Therefore, it has a rapid heat property that the temperature rises immediately after use through the thin skin material 11 having a small heat capacity.

  FIG. 6 shows the temperature characteristics of the toilet seat 6 in the present embodiment. The horizontal axis shows time, and the vertical axis shows the toilet seat surface temperature. The surface temperature of the toilet seat 6 is a temperature around 35 ° C. within 10 seconds. It turns out that it becomes. The comfortable surface temperature of the toilet seat 6 is about 35 ° C to 40 ° C. The time required for the PTC heater 12 to warm to about 35 ° C. is about several seconds to about 10 seconds, which is approximately the same as the time for a person to take off his clothes and sit on the toilet seat, and is a temperature that is not cold when sitting.

  When the user is seated on the toilet seat having the above-described configuration, the cushioning elastic layer 13 and the bendable PTC heater 12 are deformed along the user's buttocks. Although deformed and brought into a bottom contact state, the reinforcing member 12 has elasticity, so that the user can sit without receiving an impact.

  Even when the PTC heater 12 of this embodiment is expanded and contracted by blending particles 26 in which resin and carbon are mixed in an elastomer 27 as shown in FIGS. 4 (a) and 4 (b). It is characterized by the fact that the composition does not break. As described above, since the elastic structure is rich in flexibility, the PTC resistor 23 is not broken when the elongation is about 5 to 10%.

  In the state where the user is seated, the deflection of the toilet seat is small in the circumferential direction of the toilet seat 6 and mainly in the substantially vertical direction from the opening edge 6a to the outer peripheral edge 6b. The branch electrodes 30a and 30b of the present embodiment are arranged substantially in parallel with the opening edge 6a or the outer peripheral edge 6b, thereby taking advantage of the properties of the stretchable PTC resistor 23 and the damage of the PTC heater 12 and changes in the properties. Minimized.

  Further, since the power supply electrodes 28a and 28b have an annular shape that is substantially similar to the opening edge 6a and the outer peripheral edge 6b of the toilet seat, the connection with all the main electrodes is maintained even if one portion is cut due to abnormal deformation or the like. Therefore, durability can be ensured.

  As described above, in the present embodiment, the power supply electrode has an annular shape that is substantially similar to the opening edge and the outer peripheral edge of the toilet seat, and the PTC heater in which the branch electrode is disposed in a direction substantially parallel to the opening edge, By disposing in the elastic layer that deforms along the user's body shape, the user is less likely to feel the shock and coldness when sitting, and hinders blood flow in the buttocks even if sitting for a long time Therefore, a comfortable heating toilet seat device can be obtained.

  In addition, the PTC characteristic (automatic temperature control characteristic) of the PTC heater can suppress the use of useless power and provide a toilet seat device with a high energy saving effect by the rapid thermal property and the self-temperature control function after the temperature rise.

  In addition, by adopting a printing pattern that minimizes the influence on the PTC heater due to deformation of the toilet seat due to sitting, it is possible to provide a highly durable toilet seat device that suppresses breakage of the electrode and the PTC resistor and changes in characteristics. Can do.

  In the present embodiment, the PTC resistor of the PTC heater 12 has the same resin and carbon blending ratio for all PTC heaters. However, the PTC resistors having different blending ratios depending on the position of the PTC heater are used. The body may be used, for example, PTC heaters disposed on both sides of the toilet seat 6 use a carbon blending ratio, and the PTC heaters disposed on the front and rear of the toilet seat have a carbon blending ratio. By using a small amount, both sides where the user's buttocks sit on the toilet seat are in close contact with each other have a large amount of heat generation and a high heating effect. It is more comfortable and energy saving can be improved without using electric power.

  In the above description, a PTC resistor having a different blending ratio of resin and carbon is used for each PTC heater. However, the blending ratio may be changed depending on the position of one PTC heater. For example, the area near the opening edge of the toilet seat increases the carbon mixing ratio, and the area close to the outer periphery of the toilet seat decreases the carbon mixing ratio so that the user's buttocks seated on the toilet seat are closely attached In the vicinity, the amount of heat generation is large and the heating effect is high, and in the vicinity of the outer peripheral edge where the buttocks are less in close contact with each other, the amount of heat generation is small, and wasteful power is not used, so that comfort and energy saving can be improved as described above.

  In this embodiment, a PTC heater using a stretchable PTC resistor is employed as the PTC heater. However, the present invention is not limited to this, and a planar configuration is possible with a PTC heater or the like that does not have stretch properties. If it is a heater, the effect similar to this Embodiment can be acquired. In the present embodiment, the skin material and the PTC heater are configured as separate members, but the skin material can also be used as a flexible sheet of the PTC heater.

  In this embodiment, the PTC heater is installed inside the elastic layer. However, the PTC heater is installed between the skin material and the elastic layer, or installed on the upper surface of the reinforcing member. In particular, in the case of a PTC heater with low flexibility, it can be comfortably placed by placing it on the upper surface of the reinforcing member below the elastic layer so that the presence of the PTC heater is not felt when seated. Can increase the sex.

  In this embodiment, the reinforcing member is formed of a resin molded product. However, the present invention is not limited to this, and the reinforcing member may be formed of an elastic metal, or a combination of a plurality of materials such as resin, metal, and ceramic. It may be configured. In addition, the strength of elasticity provided by the reinforcing member does not have the same elasticity in all parts, for example, the portion corresponding to the buttocks can easily absorb the impact at the time of sitting by reducing the strength of elasticity, The portion corresponding to the thigh can increase the elastic strength, so that the weight when sitting can be stably held, and a more comfortable toilet seat can be provided.

  In the present embodiment, the power supply electrode is formed by printing on a flexible sheet in the same manner as the PTC heater. However, the present invention is not limited to this, and the one printed on another flexible sheet is connected in layers. The structure may be sufficient, and the structure etc. which connect the power supply electrode formed with the thin metal plate on the main electrode of a PTC heater may be considered.

(Embodiment 2)
FIG. 7 shows a printing pattern of the power supply electrode and the PTC heater in the second embodiment of the present invention.

  This embodiment differs from the first embodiment in that, as shown in FIG. 7, cuts 33a and 33b opened on the outer periphery and inner periphery of the flexible sheet 32 are alternately provided, and the power supply electrodes 34a and 34b are cut. Another flexible sheet that is provided in a ring shape and sandwiches the power supply electrodes 34a and 34b and the PTC resistor 23 is also provided with cuts.

  By providing the cuts 33a and 33b, the PTC heater 12 can absorb a part of the bending of the elastic layer 13 by the cuts 31a and 32a, so that the deformation of the PTC heater 12 can be reduced. Can be more reliably suppressed from being damaged or changing its characteristics.

  The PTC heater 12 shown in FIG. 7 is provided with cuts that open alternately on both the outer periphery and the inner periphery of the flexible sheet 32. However, the PTC heater 12 is opened only on one of the outer periphery and the inner periphery. Even if a notch that is not opened is provided, a certain effect can be obtained.

(Embodiment 3)
FIG. 8 shows a printing pattern of the power supply electrode and the PTC heater in the third embodiment of the present invention.

  The difference between the present embodiment and the first embodiment is that the printed pattern of the electrodes of the PTC heater is different, and the other configurations are the same as those of the first embodiment.

  As shown in FIG. 8, the PTC heater 35 according to the present embodiment is configured such that the branch electrodes 37a and 37b arranged alternately from the main electrodes 36a and 36b are spaced apart from each other at the rear of the toilet seat 6, the rear outer corner, The part corresponding to is made wider than other parts.

  By widening the interval between the branch electrodes 37a and 37b, the PTC resistor 23 between them has a high resistance value, so that the temperature is hardly increased.

  When the user is seated on the toilet seat, the user's buttocks or thighs mainly contact the side of the toilet seat and do not contact the front, rear, and rear outer corners. In addition, immediately after sitting, the temperature of the part where the buttocks and thighs are in contact with each other decreases due to the human body taking heat. For this reason, it is necessary to supply a greater amount of heat to the part that comes into contact with the human body than to other parts. Other parts rarely come into contact with the user's human body, and it is not necessary to heat the place as much as the place where it comes into contact. By increasing the width of the branch electrode, the amount of heat generated is reduced, improving energy savings. Can be planned.

  As described above, the toilet seat device according to the present invention has a seating comfort and an energy saving effect of a heating function. Is also applicable.

The perspective view of the toilet seat apparatus in Embodiment 1 of this invention Sectional drawing of the toilet seat in Embodiment 1 of this invention Configuration diagram of PTC heater according to Embodiment 1 of the present invention (A) Schematic diagram of the normal state of the stretchable PTC resistor in Embodiment 1 of the present invention (b) Schematic diagram of the deformed state The top view of the printing pattern of the PTC heater in Embodiment 1 of this invention Temperature characteristic diagram of toilet seat according to Embodiment 1 of the present invention The top view of the printing pattern of the PTC heater in Embodiment 2 of this invention The top view of the printing pattern of the PTC heater in Embodiment 3 of this invention Sectional view of a conventional toilet seat device

Explanation of symbols

6 toilet seat 6a opening edge 6b outer periphery 10 toilet 12, 35 PTC heater 13 elastic layer 22, 32 flexible sheet 23 PTC resistor 24 electrode 28, 28a, 28b, 34a, 34b power supply electrode 29a, 29b, 36a, 36b main Electrode 30a, 30b, 37a, 37b Branch electrode

Claims (5)

In a toilet seat mounted on a toilet bowl, an elastic body layer that deforms at least partially along a user's body shape, a plurality of PTC heaters having a positive temperature coefficient characteristic, and a power supply electrode that supplies power to the PTC heater The power supply electrode is composed of a pair of electrodes having different polarities, one of the power supply electrodes is disposed in the vicinity of the opening edge of the toilet seat, the other is disposed in the vicinity of the outer peripheral edge of the toilet seat, and the plurality of PTC heaters A toilet seat device configured to be connected to a power electrode. The toilet seat device according to claim 1, wherein the power electrode is formed in an annular shape. The PTC heater is formed by printing an electrode and a PTC resistor on a flexible sheet, and the PTC electrode is formed on a pair of main electrodes arranged opposite to each other and on the main electrodes alternately opposed to the opposing main electrodes. The toilet seat device according to claim 1, further comprising a plurality of branch electrodes led out toward the toilet seat, wherein the branch electrodes are arranged in a direction substantially parallel to an opening edge of the toilet seat. The toilet seat device according to claim 1, wherein the branch electrodes are arranged at different intervals depending on a portion of the toilet seat. The toilet seat device according to any one of claims 1 to 3, wherein the PTC resistor includes carbon and a resin, and the mixing ratio of the carbon and the resin is different depending on a portion of the toilet seat.