JP2010200870A - Toilet seat device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a toilet seat device capable of reducing wrinkles when a toilet seat soaking plate is stuck, and improving the durability and comfort by improving the temperature distribution on the toilet seat. <P>SOLUTION: Segments SE1 and SE2 of the soaking plate 450 for transmitting the heat of heating wires 460, disposed on the rear surface of a seating surface 411 of the toilet seat 400 turnably attached to a body 200, to the toilet seat 400 are disposed on the body side of the toilet seat device. As the segments SE1 and SE2 of the soaking plate 450 are disposed on an inclined part 412 on the body side where wrinkles are easily formed, the soaking pate 450 can be stuck to the rear surface of the toilet seat 410 with reduced wrinkles. Further, as there is no segment on the front end side of the toilet seat with which a user's thighs close to the knees sensitive to temperature are brought into contact, the temperature distribution on the toilet seat can be improved without reducing the density of heating wires (heating elements) on the front end side of the toilet seat. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a toilet seat device.

  In the field of sanitary washing devices for washing local parts of the human body, in order to avoid discomfort to the human body, for example, a heating device for adjusting washing water used for washing to an appropriate temperature, or a contact portion with the human body Devices having various functions have been devised such as a toilet seat device for adjusting the temperature of the toilet to an appropriate temperature. Especially, according to the toilet seat apparatus shown above, even when the temperature is low such as in winter, the user can sit on the toilet seat without feeling uncomfortable (see, for example, Patent Document 1 and Patent Document 2).

  In the toilet seat device described in Patent Document 1, a linear heater is provided inside a toilet seat casing formed of a magnesium alloy. The linear heater includes a core wire, a heating wire wound around the core wire (a heating element), and a covering tube that covers the core wire and the heating wire (a heating element). The linear heater is attached to a heat equalizing plate for equalizing the temperature, and is arranged so as to meander across the entire back surface of the toilet seat casing, and a power circuit is connected to both ends of the heating wire (heating element). ing.

  In such a configuration, the heating wire (heating element) generates heat when a voltage is applied from the power supply circuit to the heating wire (heating element). And the heat is transmitted to a toilet seat casing via a covering tube and a soaking plate. Thereby, the temperature of the toilet seat casing rises and the user can comfortably sit on the toilet seat.

  Moreover, the cord-like heater 4 arrange | positioned by the meandering wiring pattern on the double-sided adhesive sheet 3 which has the release paper 3a like the conventional toilet seat apparatus described in patent document 3 shown in FIG.11 and FIG.12, In some cases, the sheet heating element 1 sandwiched between the double-sided adhesive sheet 3 and the aluminum foil sheet 2 and punched into a horseshoe shape is attached to the back surface of a substantially O-shaped three-dimensional resin toilet seat 5.

In the above Patent Documents 1, 2, and 3, in order to attach a two-dimensional, ie, flat, heat equalizing plate (aluminum foil sheet 2) to the back surface of a three-dimensional toilet seat casing (toilet seat 5), the heat equalizing plate is made into a horseshoe shape. In general, the horseshoe division is provided on the tip side away from the main body of the sanitary washing device.
JP 2003-310485 A JP 2008-23313 A JP-A-8-78143

  Generally, the seat surface shape of the toilet seat is inclined in a mortar shape with respect to the central hole, and the inclination angle on the main body side is particularly large. As a matter of course, there is a problem that wrinkles are likely to occur because a two-dimensional flat plate is attached to a portion having a large inclination.

  Moreover, since the density of the heating wire (heating element) decreases in the vicinity of the divided portion, the toilet seat surface temperature decreases. When the split part is provided on the tip side away from the main body of the sanitary washing device, there is a problem that the thigh part on the side close to the relatively sensitive knee touches the low temperature part near the split part and feels uncomfortable. It was.

The present invention solves the above-mentioned conventional problems, and reduces the wrinkles at the time of attaching the toilet seat heat equalizing plate and improves the temperature distribution of the toilet seat, thereby improving the durability performance and comfort. The purpose is to provide.

  In order to solve the conventional problems, a toilet seat device according to the present invention includes a toilet seat having a seating surface rotatably attached to a main body, a heating element provided on the back side of the seating surface of the toilet seat, and the heat generation. A heat equalizing plate for transmitting body heat to the toilet seat is provided, and a division part of the heat equalizing plate is provided on the main body side.

  Thereby, since there exists a division | segmentation part of a soaking | uniform-heating board in the main body side inclined part which is easy to generate | occur | produce a wrinkle, it can stick a soaking | uniform-heating board with few wrinkles on the back surface of a toilet seat. In addition, since there is no split part on the front side of the toilet seat that touches the thigh on the side close to the temperature-sensitive knee, the temperature distribution of the toilet seat is improved without reducing the density of the heating wire (heating element) on the front side of the toilet seat be able to.

  ADVANTAGE OF THE INVENTION According to this invention, the toilet seat apparatus with few temperature nonuniformity can be provided, improving durability performance by reducing the wrinkle of the heat equalizing plate affixed on a toilet seat.

  A toilet seat device according to a first aspect of the present invention is a toilet seat having a seating surface rotatably attached to a main body, a heating element provided on the back side of the seating surface of the toilet seat, and for transferring heat of the heating element to the toilet seat. The soaking plate is provided, and the dividing portion of the soaking plate is provided on the main body side.

  As a result, the main body side inclined portion where wrinkles are likely to occur has a dividing portion, so that wrinkles can be reduced. Moreover, since the heat generating body density of the thigh can be increased, temperature unevenness can be reduced.

  The toilet seat device according to the second invention is, in the first invention, particularly configured to provide a connection between the heating element and a lead wire for supplying power to the heating element in the divided portion.

  The connection part is connected to the heating element and the lead wire, and the parts for terminal treatment such as insulation waterproofing are attached, and the flexibility is lost. Therefore, if the connection part is interposed during the application of the heat equalizing plate, Therefore, it is difficult to apply the film while suppressing the generation of wrinkles. According to the present invention, it is possible to provide a toilet seat device that is easy to be pasted by arranging a connection portion that is difficult to be pasted at the tip end that is the last of pasting.

  The toilet seat device according to the third invention is the toilet seat device according to the second invention, in which the connecting portion is provided at a substantially central portion on the main body side.

  The connection part is connected to the heating element and the lead wire, and parts for terminal treatment such as insulation waterproofing are attached, so the heat capacity is large compared to the location of the heat equalizing plate where only the heating element is installed, so rapid heating The temperature rise is delayed at times, and it becomes a relatively low temperature portion in the soaking plate. Due to the configuration in which the connection part that is relatively low temperature is provided in the substantially central part on the main body side, the low temperature part is arranged in the relatively insensitive collar part and the concave part on the rear side of the collar part, thereby reducing the low temperature and temperature unevenness. An uncomfortable feeling can be avoided with almost no feeling, and a more comfortable toilet seat device can be provided.

  A toilet seat device according to a fourth aspect of the present invention is, in particular, in any one of the first to third aspects of the present invention, the soaking plate is configured to overlap in the vicinity of the dividing portion.

Toilet seats with excellent temperature distribution can be created by overlapping the soaking plates of the divided parts where the density of the heating element is reduced, creating a space between the tips of the soaking plates and preventing heat transfer. Equipment can be provided.

  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)
FIG. 1 is a perspective view of the appearance of the toilet seat device according to the present embodiment installed on a toilet, and FIG. 2 is a schematic diagram showing the configuration of the toilet seat device 110.

<1> Configuration of Toilet Seat Device As shown in FIG. 1, the toilet seat device 100 includes a main body 200, a toilet lid 300, a toilet seat 400, a remote controller 500, and a human body detection sensor 600, and the main body 200, the toilet lid 300, and the toilet seat 400. Is integrally formed and installed on the upper surface of the toilet bowl 700.

  A toilet lid 300 and a toilet seat 400 are attached to the main body 200 via a toilet seat toilet lid rotation mechanism (not shown) so as to be electrically opened and closed. In the state where the toilet lid 300 is opened as shown in FIG. 1, the toilet lid 300 stands so as to be positioned at the rearmost part of the toilet seat device 100. When the toilet lid 300 is closed, the upper surface of the toilet seat 400 is concealed.

  The main body 200 includes a cleaning water supply mechanism (not shown), a heat exchanger (not shown), a cleaning mechanism including a cleaning nozzle 201, a drying unit (not shown), and a control unit (not shown). (Not shown) and the like are incorporated.

  A seating sensor 202 is installed at the front corner of the main body 200. The seating sensor 202 is a reflective infrared sensor, and detects the presence of a user on the toilet seat 400 by detecting infrared light reflected from the human body. In addition, an operation unit 203 is provided on a side portion of the main body 200 so that main functions of the toilet seat device can be operated.

  The washing water supply mechanism and the heat exchanger are connected to the washing nozzle 201, and the washing water supplied from the water pipe is heated by the heat exchanger to supply hot water to the washing nozzle. The washing water is spouted out toward the local area to clean the local area of the user. The washing nozzle includes a butt washing nozzle part for washing the butt and a bidet nozzle part for washing the female part.

  Further, the drying unit can blow the warm air toward the local area wetted by the washing water and dry the local area.

  Note that the cleaning mechanism and the drying unit are not essential components of the toilet seat device, and may be a toilet seat device that does not include these components.

  The remote controller 500 is provided with a plurality of operation switches. The remote controller 500 is attached to a place such as a wall surface of a toilet room that can be operated by a user seated on the toilet seat 400 and operates each function of the toilet seat device 100.

  The human body detection sensor 600 is attached to a wall surface of a toilet room. The human body detection sensor 600 is a reflective infrared sensor, and detects that a user has entered the toilet room when detecting infrared light reflected from the human body.

The control unit of the main body 200 controls the operation of each unit of the toilet seat device 100 based on signals transmitted from the remote controller 500, the human body detection sensor 600, and the seating sensor 202.

  When there is no user in the toilet room, the toilet seat device 100 of the present invention stops energizing the toilet seat heater or keeps the temperature low at about 20 ° C. When the user enters the toilet room, a signal from the human body detection sensor 600 is received, and the toilet seat heater is energized. The heater of the toilet seat is a very high output heater of about 800W, and the toilet seat seating surface is about 40 ° C for about 6 to 10 seconds from when the user enters the toilet room to the seat on the toilet seat. Warm to an appropriate temperature. After the toilet seat reaches an appropriate temperature, the energization of the toilet seat heater is lowered to a low wattage of about 50 W to maintain the appropriate temperature. When the user gets out of the toilet room, the energization to the toilet seat heater is stopped or the temperature is kept at a low temperature of about 20 degrees. That is, the toilet seat device greatly reduces the power when there is no user in the toilet room.

<2> Configuration of Toilet Seat 400 FIG. 2 is a perspective view of the toilet seat 400 in an assembled state, and FIG. 3 is an exploded perspective view of the toilet seat 400.

  2 and 3, the toilet seat 400 includes a substantially elliptical annular upper toilet seat casing 410 formed mainly of aluminum, a substantially horseshoe-shaped toilet seat heater 450 adhered to the back surface of the upper toilet seat casing 410, and a composite. A substantially elliptical annular lower toilet seat casing 420 formed of resin is configured as a main component.

  Hereinafter, the front side as viewed from the seated user is defined as the front portion (tip side) of the toilet seat 400, and the rear side as viewed from the seated user is defined as the rear portion (main body side) of the toilet seat 400.

  The upper toilet seat casing 410 is formed by pressing an aluminum plate having a thickness of about 1 mm by pressing or the like, and has a heat-resistant polyester powder coating film formed on the front and back surfaces. Insulating performance can be improved by adopting powder coating that does not easily generate pinholes.

  Instead of the aluminum plate, other metal having good thermal conductivity such as a plate material such as copper or stainless steel or a molded product of magnesium alloy may be used. Further, the surface treatment applied to the aluminum plate is not limited to the above specifications, and other chemical treatments or other coatings using acrylic or urethane paints can be selected.

  The upper toilet seat casing 410 has a curved portion 412 formed continuously at the rear portion of a substantially elliptical annular seating surface 411. The seating surface 411 forms an upwardly convex curved surface having an inclination in which the outer peripheral portion is higher than the inner peripheral portion. The difference in height between the inner peripheral portion and the outer peripheral portion at the side portion of the seating surface 411 is about 25 mm, and the front portion is smaller than this.

  The bent portion 412 and the seating surface 411 are connected by a continuous concave curved surface, and the upper portion is an inclined surface. The upper edge 412a of the bent portion 412 is a large curve close to a horizontal line, and the width of the bent portion 412 is substantially the same as the lateral width of the seating surface 411. The height difference between the inner peripheral portion of the rear portion of the seating surface 411 and the upper edge 412a of the bent portion 412 is about 80 mm, and the height difference of the bent portion 412 is about 3.2 times the height difference of the side portion of the seating surface 411. It has become.

The toilet seat heater 450 is formed in a substantially horseshoe shape in which a part of the rear portion is cut off. The toilet seat heater 450 is formed by meandering a linear heater between two metal foils made of aluminum, which is a soaking plate. The toilet seat heater 450 is provided with a linear heater so that the seating surface 411 and the bent portion 412 can be heated, and the density is changed depending on the location so that the thigh and buttocks of the seated user can be heated comfortably. It is arranged.

  The lower toilet seat casing 420 is a molded product using a resin material, and is composed of a main body portion 421 whose planar shape is substantially the same as that of the upper toilet seat casing 410, and arm portions 422 that protrude obliquely upward to the rear of both sides of the main body portion 421. ing. The upper toilet seat casing 410 and the lower toilet seat casing 420 are coupled at the inner peripheral portion and the outer peripheral portion, and a watertight means is applied to the joint portion.

  A toilet seat 400 having a toilet seat heater 450 adhered to the back surface of the upper toilet seat casing 410 and a lower toilet seat casing 420 coupled thereto includes an arm portion 422 at the rear portion as shown in FIG. 2, and the arm portion 422 is attached to the toilet seat of the main body 200. By being coupled to a toilet lid rotation mechanism (not shown), it is pivotally supported.

  Generally, the seating surface 411 of the toilet seat 400 is inclined in a mortar shape toward the toilet seat hole so that the buttocks are stabilized when seated. To attach a toilet seat heater 450 having a linear heater meandering between two metal foils made of aluminum, which is a two-dimensional planar heat equalizing plate, to the toilet seat casing 410 having a three-dimensional shape. If it is pasted on the surface, wrinkles and floats will occur. Conventionally, the division part of the horseshoe-shaped heat equalizing plate has been arrange | positioned at the front end side (front part) of the toilet seat.

  However, the seating surface of the toilet seat 400 has a larger mortar-shaped inclination on the main body side (rear part) of the toilet seat 400 corresponding to the rear side of the buttocks. When the division part of the heat equalizing plate is on the front end side (front part) of the toilet seat, since it is necessary to apply it from the main body side (rear part) of the toilet seat with a large inclination, wrinkles, floats, and sticking deviations are likely to occur.

  Therefore, in the present invention, the division parts SE1 and SE2 of the soaking plate are provided on the main body side (rear part) of the toilet seat 400. As a result, the toilet seat 400 can be attached from the front end portion (front portion) with a relatively small inclination, so that floating and wrinkles are unlikely to occur.

  Moreover, the toilet seat width | variety of the heater sticking part of the main body side (rear part) of the toilet seat 400 may be short from the ease of sitting and a design. Also in this case, since the front end portion (front portion) of the toilet seat 400 has a certain width, it is effective to provide the soaking plate dividing portions SE1 and SE2 on the main body side (rear portion) of the toilet seat 400.

  Moreover, the density of a heater becomes low in the division part of a soaking plate. When the division part of the heat equalizing plate is on the front end side (front part) of the toilet seat 400, the temperature of the thigh part close to the knee, which is sensitive to temperature, becomes low, and the user feels partial coldness when seated May cause discomfort. In the present embodiment, the low temperature part can be arranged by providing the partition parts SE1 and SE2 of the soaking plate on the main body side (rear part) of the toilet seat 400.

<3> Detailed Configuration of Toilet Seat Heater FIGS. 4 and 5 are toilet seats in which a linear heater 460, which is a heating wire (heating element), is arranged in a meandering shape between two metal foils 451 and 453 made of aluminum. The heater is shown in a plan view. The toilet seat heater 450 is formed in a substantially horseshoe shape with a part of the rear portion cut off.

  As shown in FIGS. 4 and 5, the linear heater 460 includes a region from the metal foil center part SE3 to the metal foil one end part SE1 and a metal foil center part SE3 to the metal foil other end part SE2. Are arranged in a meandering shape that meanders in the left-right direction in accordance with the shape of the upper toilet seat casing 410. The linear heater 460 is disposed such that the meandering bent portion is positioned in the vicinity of the outer side and the inner side of the upper toilet seat casing 410.

  Specifically, the first series A meandering shape is formed by the linear heater 460 extending from one side of the rear portion of the toilet seat heater 450 to the vicinity of the one end SE1 of the metal foils 451 and 453 while moving to the left and right. The Further, the linear heater 460 meanders from the vicinity of one end SE1 of the metal foils 451 and 453 to the left and right, and passes through the vicinity of the central portion SE3 of the metal foils 451 and 453, and the other end SE2 of the metal foils 451 and 453. The second series B meandering shape is formed by extending to the vicinity of. Further, the linear heater 460 extends from the vicinity of the other end part SE2 of the metal foils 451 and 453 to the one side of the rear part of the toilet seat heater 450 through the vicinity of the central part SE3 of the metal foils 451 and 453, thereby the first series. A meandering shape of A is formed.

  As shown in FIGS. 4 and 5, the first series A meandering linear heater 460 and the second series B meandering linear heater 460 are arranged substantially in parallel. The first series A and second series B meandering linear heaters 460 are continuous from the heater start end 460a to the heater end end 460b.

  The heater start end portion 460a and the heater end portion 460b of the linear heater 460 are respectively connected to lead wires 470 drawn from one side of the rear portion of the toilet seat 400 through connection terminals described later.

  In this example, the linear heater 460 has a meandering shape in which a bent portion is positioned in the vicinity of the inner side of the toilet seat heater 450 and in the vicinity of the outer side. Thereby, the space | interval between bending parts is short. Therefore, since the length change resulting from thermal expansion and thermal contraction is small, even if the linear heater 460 expands and contracts, the strain due to expansion and contraction is absorbed and buffered at the bending portion. As a result, the stress resulting from the thermal expansion and contraction of the linear heater 460 is reduced, and damage due to long-term use can be suppressed.

  In addition, since the thermal expansion and contraction of the linear heater 460 is small, the adhesion to the metal foils 451 and 453 can be maintained well for a long period. Thereby, heating of the toilet seat heater 450 can be performed efficiently and reliably.

  Moreover, the length of a bending part and the space | interval between bending parts can be adjusted arbitrarily. Thereby, the heating distribution of the toilet seat heater 450 can be adjusted.

  For example, the length of the bent portion and the interval between the bent portions are adjusted such that the heating density in the vicinity of the outer side and the inner side of the toilet seat heater 450 is higher than the heating density in the central portion of the toilet seat heater 450. Thereby, the uniform heating temperature can be maintained in the entire region of the toilet seat heater 450.

  Further, the current direction in the first series A meandering linear heater 460 is opposite to the current direction in the second series B meandering linear heater 460. As a result, the electromagnetic waves generated from the linear heaters 460 cancel each other. As a result, generation of noise is prevented.

  In addition, the toilet seat heater 450 is formed with a temperature measuring portion 450T in which the linear heater 460 meanders at a high density. The temperature detecting section 450T is provided with a return thermostat (not shown) using a bimetal for preventing temperature rise. When the toilet seat heater 450 reaches an unexpected abnormal temperature, the energization is temporarily stopped by opening the return thermostat.

  The toilet seat heater 450 is provided with a temperature shoe (not shown) as a thermostat backup function.

The temperature fuse is sealed with a tube for waterproofing and insulation and temporarily fixed to the toilet seat heater 450 with an adhesive tape. On the other hand, a thermal fuse fixing tool (not shown) formed of a spring material is provided in the lower toilet seat casing 420 of the toilet seat 400, and the upper toilet seat casing 410 and the lower toilet seat casing 420 are assembled, so that the thermal fuse fixing tool is elastic. A temperature fuse can be brought into close contact with the toilet seat heater 450 to accurately detect the temperature.

  When the toilet seat heater 450 reaches an unexpected abnormal temperature, the energization is temporarily stopped by opening the return thermostat. Further, when the reset thermostat causes a failure or the like, and the toilet seat heater 450 tries to reach a dangerous temperature, the non-reset type thermal fuse is blown, so that the power supply is completely cut off.

<4> Detailed Configuration of Toilet Seat Heater FIG. 6 is a schematic diagram showing a cross-sectional view of the toilet seat heater 450 attached to the upper toilet seat casing 410.

  As shown in FIG. 6, the upper toilet seat casing 410 is formed of an aluminum plate 410a having a thickness of 1 mm. On the upper surface of the aluminum plate 410a, a surface decorative layer 410b is formed by polyester powder coating. The upper surface of the surface decorative layer 410b becomes the seating surface 411. In addition, a heat resistant paint insulating layer 410c is formed on the lower surface of the aluminum plate 410a. The heat resistant coating insulating layer 410c is, for example, a polyester powder coating film having a film thickness of 100 μm and heat resistance of 150 ° C., and has an effect as an insulating coating layer.

  A toilet seat heater 450 is attached to the lower surface of the heat-resistant coating insulating layer 410c via an adhesive layer 452c.

  A toilet seat insulating film 455 made of polyethylene terephthalate (PET) having a film thickness of 12 to 25 μm and having a heat resistance of 150 ° C. is disposed on the upper surface side of the toilet seat heater 450 facing the heat resistant coating insulating layer 410c.

  Next, two metal foils 451 and 453 are arranged. The metal foils 451 and 453 are made of a metal foil laminate sheet obtained by integrally laminating aluminum sheets 451a and 453a and resin films 451p and 453p, and are used for toilet seat insulation. A resin film 451p is provided facing the film 455 through an adhesive layer 452a, and an aluminum sheet 451a, an adhesive layer 452b, an aluminum sheet 453a, and a resin film 453p are arranged in this order.

On the lower surface side of the resin film 453p of the metal foil 453, a waterproof insulating film 471 made of polyethylene terephthalate (PET) is disposed via an adhesive layer 452d.
The toilet seat insulating film 455 and the waterproof insulating film 471 have an outer shape that is approximately 5 mm or more larger than the outer shape over the entire circumference of the metal foils 451 and 453, and the entire periphery of the toilet seat heater 450 is connected to the toilet seat insulating film 455. A waterproof insulating film 471 is directly attached via an adhesive layer 452d to form a waterproof insulator, and the metal foils 451 and 453 and a linear heater 460 described later are covered with a sealed waterproof insulator, For example, even when the toilet seat 400 is submerged, the charging portion of the toilet seat heater 450 is prevented from being submerged and no electric leakage occurs.

  In particular, the distance of 5 mm on the outer peripheral portion is sufficient to keep the insulation distance between the end faces of the metal foils 451 and 453 that can become a charging part and the aluminum plate 410a of the upper toilet seat casing 410 in the unlikely event that the linear heater 460 breaks down, The insulation distance with the seating surface 411 which a human body directly contacts is ensured.

  A linear heater 460 is disposed between the metal foils 451 and 453, and the linear heater 460 is bonded and fixed to the aluminum sheet 453a via an adhesive layer 452b.

  The linear heater 460 includes a heating wire (heating element) 463a having a circular cross section, an enamel layer 463b, and an insulating coating layer 462. The outer peripheral surface of the heating wire (heating element) 463a having a circular cross section is sequentially covered with the enamel layer 463b and the insulating coating layer 462. An enamel wire 463 is configured by the heating wire (heating element) 463a and the enamel layer 463b.

  The heating wire 463a has a diameter of 0.16 to 0.25 mm and is made of copper or a copper alloy. In this example, a high tensile strength heater wire made of a 4% Ag—Cu alloy having a diameter of 0.168 mm is used as the heating wire 463a. The resistance value is 0.88 Ω / m.

  The enamel layer 463b is made of polyester imide (PEI) having heat resistance of 180 to 300 ° C. The film thickness of the enamel layer 463b is 20 μm or less, and is 12 to 13 μm in this example. Such an enameled wire 463 sufficiently secures an electrical withstand voltage performance of 1 minute or more at 1000 V, which is an electrical equipment technical standard, even if the enamel layer 463b has a very thin film thickness of about 0.01 to 0.02 mm. be able to. Alternatively, polyimide (PI) or polyamideimide (PAI) may be used as the material for the enamel layer 463b.

  The insulating coating layer 462 is made of a fluororesin such as a perfluoroalkoxy mixture (hereinafter referred to as PFA) having a heat resistance of 260 ° C. The thickness of the insulating coating layer 462 is 0.1 to 0.15 mm. The insulating coating layer 462 made of PFA can be formed by extrusion. In this case, even if the thickness of the insulating coating layer 462 is as thin as 0.05 to 0.1 mm, it is possible to ensure electrical withstand voltage performance that can withstand lightning surge.

  Heat generation can be transmitted most efficiently by forming the metal foils 451 and 453 so as to be in close contact with and cover the entire outer periphery of the linear heater 460. If there is an air layer around the linear heater 460 (between the metal foil), the heat radiation from the linear heater 460 is prevented from being released and the heater wire temperature rises. At this time, if the heater wire temperature exceeds the heat resistance temperature of the enamel layer 463b and the insulating coating layer 462, the coating material deteriorates and the insulating property is destroyed, and eventually the heating wire 463a is broken. Therefore, in the manufacturing process of the toilet seat heater 450, an air vent hole is provided at a main point of the metal foil 451 to eliminate air staying between the metal foils 451 and 453, and the metal foils 451 and 453 and the linear heater 460 are in close contact with each other. Consideration to do.

  In this configuration, the linear heater 460 is disposed in close contact with the aluminum metal foils 451 and 453. This prevents the temperature of the linear heater 460 from rising by bringing the linear heater 460 into close contact with a metal having excellent thermal conductivity. Thereby, durability performance improves.

  Further, since the linear heater 460 has a high temperature exceeding 100 ° C. when energized, it is necessary to select an adhesive material near the heater wire that has excellent heat resistance.

<5> Method of Connecting the Linear Heater 460 and the Lead Wire 470 FIG. 7 shows insulation and waterproofing of a connection cover and the like that covers the upper part of the connection terminal in order to show the connection state of the linear heater 460 and the lead wire 470 to the toilet seat heater 450. FIG. 8 is a plan view showing a state where members are removed, and FIG. 8 is a schematic view showing a cross section of a connecting portion between the linear heater 460 and the lead wire 470.

As shown in FIGS. 7 and 8, the linear heater 460 that is a heating wire (heating element) and the core wire of the lead wire 470 are connected via a connection terminal 461. The connecting terminal 461 has a substantially L-shaped planar shape, and one end of the connecting terminal 461 has a U-shaped bent portion connected to the linear heater 460, and the L-shaped corner has a lead. A cylindrical lead wire holding portion 461b for inserting and holding a wire is formed, and a lead wire connecting portion 461c formed in a cylindrical shape for connecting the lead wire 470 is formed at the other end portion. The heater wire connecting portion 461a and the lead wire holding portion 461b are integrally formed via a substantially flat plate-like heat radiating portion 461d.

  The connection method between the linear heater 460 and the connection terminal 461 is such that the tip of the linear heater 460 is inserted into the heater connection portion 461a, the heater wire connection portion 461a is sandwiched between a pair of electrodes, and pressed while the terminal 471 and the linear terminal 461 are pressed. A current is supplied to the heater 460. Thereby, the insulating coating layer 462 and the enamel layer 463b of the linear heater 460 are melted. As a result, the heating wire 463a of the linear heater 460 contacts the connection terminal 461.

  The lead wire 470 and the connection terminal 461 are connected by inserting the core wire of the lead wire 470 into the lead wire connecting portion 461c and connecting it by thermal caulking.

  Next, a configuration for dissipating heat of the connection terminal 461 through the metal foil 451 and a configuration for ensuring insulation of the connection terminal 461 exposed by the metal will be described.

  As shown in FIG. 8, the back surface side of the connection terminal 461 is in close contact with the aluminum sheet 451a of the metal foil 451 of the toilet seat heater 450 via the terminal insulating film 456 made of PET film so that the heat radiating portion 461d of the connection terminal 461 is disposed. It is arranged. As described in the detailed configuration of the toilet seat heater, the metal foil 451 is attached to the upper toilet seat casing 410 via the adhesive layer 452a, the toilet seat insulating film 455, and the adhesive layer 452c.

  On the other hand, the surface side of the connection terminal 461 is covered with an insulating cover 457 made of polycarbonate molded into a shape that can accommodate the connection terminal 461 and the lead wire 470, and the outer side is covered with an aluminum sheet 458a and a resin film 458p via an adhesive layer 452d. The metal foil 458 which consists of is covered. Further, the outer side of the metal foil 458 is covered with a waterproof cover 459 made of butyl rubber having insulation and waterproof performance. The outer periphery of the waterproof cover 459 adheres to the toilet seat insulating film 455 and the waterproof insulating film 471, and the connection terminal 461 has a waterproof structure by a waterproof insulator formed by the waterproof cover 459, the toilet seat insulating film 455, and the waterproof insulating film 471. It is made.

  Considering the durability of the linear heater 460, the insulating cover 457 is preferably thinner because the thinner the cover, the better the heat radiation to the metal foil 458. However, since a thickness that does not cause pinholes due to the wires of the lead wire 470 and the burr of the connection terminal 461 is required, the thickness is preferably about 0.1 mm to 0.3 mm.

  Thus, unlike the arrangement part of the linear heater 460 sandwiched between the metal foils 451 and 453, the connection terminal 461 has a structure that contacts only one of the metal foils 451. The heat radiation performance can be improved by providing the heat radiation part 461d on the substantially flat plate to increase the contact area, preventing the overheating and disconnection of the heating wire 463a, and ensuring the heat uniformity of the toilet seat heater 450. .

  The terminal insulating film 456 and the insulating cover 457 are configured to secure the distance between the connection terminals 461 and the distance between the connection terminals 461 and the metal foils 451 and 453 by about 5 mm. Insulation performance can be secured if the insulation distance is about 3 mm, but a distance of about 5 mm is required in consideration of variation in mounting. On the other hand, when the linear heater 460 on the insulator becomes long, the heat dissipation performance deteriorates, causing local heat generation, resulting in disconnection. Considering the heat insulation and insulation of the linear heater 460, about 5 mm is suitable.

Furthermore, since the heating wire 463a and the lead wire 470 of the linear heater 460 and the connection terminal 461 are connected by thermal caulking, a thin and reliable electrical connection is realized. Further, since the heating wire 463a is prevented from floating, local overheating and disconnection of the heating wire 463a are prevented.

  In addition, in order to ensure the safety of the toilet seat 400, the toilet seat device 100 according to the present embodiment includes two safety circuits. One safety circuit is a dielectric breakdown detection circuit of the toilet seat heater 450, and the other one safety circuit is connected between the disconnection detection circuit of the toilet seat heater 450. Both safety circuits are used to prevent electric shock of the user when an abnormality occurs in the toilet seat heater 450.

  As shown in FIG. 7, the detection line 481 of the dielectric breakdown detection circuit is connected to the metal foil 451 in the vicinity of the connection terminal 461.

  As shown in FIG. 5, the connection part with the lead wire 470 for supplying power to the linear heater 460 which is a heating wire (heating element) is divided parts SE1 and SE2 of the metal foils 451 and 453 which are soaking plates. Provided in the vicinity of As described with reference to FIGS. 7 and 8, the connecting portion 461 s between the linear heater 460 and the lead wire 470 which is a heating wire (heating element) has components for stabilizing the connection and ensuring safety and reliability. For this reason, it is a part where pasting is relatively difficult. Therefore, by providing a connecting portion 461s between the linear heater 460, which is a heating wire (heating element), and the lead wire 470 in the divided portions SE1, SE2 of the metal foils 451, 453 which are soaking plates, aluminum which is a soaking plate. The workability of attaching the toilet seat heater 450, in which the linear heater is meandered between the two metal foils, to the toilet seat, is improved. Because the split part is located at the tip of the soaking plate, and even if there is a component for connecting the heating wire (heating element) and the lead wire, it becomes the last part of the pasting. Because it is not in the middle, it can avoid wrinkles and floating.

  When the soaking plate 450 provided with the heater wire 463 is attached to the toilet seat 410, if the soaking plate 450 is wrinkled or floated, a gap, that is, an air insulation layer exists between the toilet seat 410 and the soaking plate 450. In other words, the heat of the heater wire 463 becomes difficult to be transmitted to the toilet seat 410 in the wrinkled or floating portion, and the heater wire 463 is locally heated to damage the insulating resin coating of the heater wire 463 or the heater wire 463. May cause failure such as disconnection. In addition, if a partial heat insulation layer is generated due to wrinkles or floating, uneven temperature distribution occurs on the seating surface 411 of the toilet seat 410, and the comfort at the time of seating is impaired. A toilet seat device with improved durability and comfort can be obtained by the above-described configuration for preventing wrinkles and lifting.

  As described above, the toilet seat 410 having the seating surface 411 rotatably attached to the main body, the heating line (heating element) 463 provided on the back side of the seating surface 411 of the toilet seat 410, and the heating line (heating element) 463. In order to supply power to the heat generating wire 463 and the heat generating wire 463 in the configuration in which the heat equalizing plate 450 for transferring the heat of the heat to the toilet seat 410 is provided and the divided portions SE1 and SE2 of the heat equalizing plate 450 are provided on the main body side. By connecting the lead wire 470 to the divided portions SE1 and SE2, the connection portion 461s which is difficult to be attached is arranged at the tip of the heat equalizing plate 450 which is the last of the attachment, It is possible to provide a toilet seat device that has good workability for attaching the plate 450 to the toilet seat 410, less wrinkles and floats, and has improved durability and comfort.

  FIG. 9 shows a state in which the toilet seat heater 450 shown in FIG. 5 is attached to a three-dimensional upper toilet seat casing 410. Lead wires 470 for supplying power to a heating wire (heating body) 460 are provided. A connecting portion 461s to be connected is pasted so as to be a substantially central portion on the main body side. The soaking plate of the toilet seat heater 450 has a horseshoe shape in a planar state as shown in FIG. 5, and the divided parts are adjacent to each other in a state of being attached to the three-dimensional upper toilet seat casing 410. О Shape.

  As described with reference to FIGS. 5 to 8, in the configuration in which the connection portion 461 s for connecting the lead wire 470 for supplying power to the heating wire 460 is provided, the rate of temperature rise when energization to the heating wire 460 is started is Since there are extra parts that take away the heat of the heating wire 460 as compared with other portions of the toilet seat heater 450 such as the connection terminal 461, the lead wire 470, and the insulating cover 457 of the connection portion 461s, the heating rate of the connection portion 461s is increased. Acts to slow down.

  However, by adopting a configuration in which the connecting portion 461s is arranged in the substantially central portion on the main body side, which is the rear portion of the toilet seat 410, the portion of the seating surface 411 of the toilet seat that is slightly lowered due to a rise in temperature when seated is Since it is a place corresponding to a recess on the rear side of the buttocks that is relatively insensitive to temperature, the user hardly feels cold when seated.

  Therefore, the configuration in which the connection portion 451s having a relatively low temperature is provided in the substantially central portion on the main body side causes the low temperature portion to be disposed in the concave portion on the rear side of the collar portion that is relatively insensitive to the temperature. An uncomfortable feeling can be avoided with almost no feeling, and a more comfortable toilet seat device can be provided.

  Further, in the above description of FIG. 9, the heat equalizing plate of the toilet seat heater 450 has been described as a configuration in which the upper toilet seat casing 410 is attached so that the divided portions (SE1 and SE2 in FIG. 4) are adjacent to each other. The portion indicated by is a mating portion 450as where the soaking plates overlap in the vicinity of the divided portion, so that the heater 460 in the vicinity of the other end SE2 overlaps the connecting portion 461s where the heating rate is delayed, and the heat density is increased. Since it can raise, the temperature nonuniformity of the rear part of the toilet seat 410 and generation | occurrence | production of a low-temperature part can be reduced.

  That is, when the heat equalizing plate of the toilet seat heater 450 is attached to the back surface of the upper toilet seat casing 410, the heater 460 in the vicinity of the other end SE2 of the heat equalizing plate partially overlaps below the connecting portion 461s shown in FIG. Therefore, the temperature distribution of the seating surface 411 can be improved.

  In other words, by adopting a configuration in which the soaking plates overlap each other in the vicinity of the dividing portion, it is possible to reduce the occurrence of a place where heat is not easily transferred due to a gap between the tip portions of the soaking plates, and the temperature. A toilet seat device with excellent distribution can be provided. Even if a low temperature portion due to a slight delay in the temperature rise rate or the like occurs, the seating surface 411 of the toilet seat can be set at the time of seating by adopting a configuration in which the connection portion 461s is arranged at the substantially central portion on the main body side that is the rear portion of the toilet seat 410. Of these, the part where the temperature rise is delayed and the temperature is slightly lower is the place corresponding to the recessed part on the rear side of the buttocks that is relatively insensitive to temperature, so the user hardly feels low temperature or temperature unevenness when sitting Discomfort can be avoided and a more comfortable toilet seat device can be provided.

  In the first embodiment, the case where the heating element is a linear heater has been described. However, the heating element is not limited to the linear heater, and the heating element is a printing heater, etching heater, press punching heater, PTC heater, ribbon. Even in the case of a heater or the like, it is possible to obtain the same effects and include them. In addition, the material of the toilet seat is not limited to the metal toilet seat, and the same effect can be obtained in a ceramic or resin toilet seat.

  As described above, the toilet seat having a seating surface rotatably attached to the main body, the heating wire (heating body) provided on the back surface side of the seating surface of the toilet seat, and the heat of the heating wire (heating body) In the configuration in which the heat equalizing plate is provided to transmit to the main body, the heat equalizing plate is provided on the main body side, and when the heat equalizing plate is attached to the toilet seat, the heat equalizing plate divided portions overlap each other. Therefore, it is possible to prevent the heat transfer plate from having a gap between the tips, making it difficult to transfer heat. An excellent toilet seat device having excellent temperature distribution can be provided.

  As described above, the toilet seat device according to the present invention provides a heating toilet seat that is excellent in workability for attaching the heat equalizing plate to the toilet seat, has little wrinkles and floats, has excellent durability performance, and has an excellent temperature distribution. The present invention is not limited to this and can be applied to a heating device on which a user is seated.

The perspective view which shows the external appearance of the toilet seat apparatus in Embodiment 1 of this invention The perspective view which shows the external appearance of the toilet seat in Embodiment 1 of this invention 1 is an exploded perspective view of a toilet seat according to Embodiment 1 of the present invention. Plan view of the toilet seat heater in the first embodiment of the present invention Bottom view showing a state in which the toilet seat heater is attached to the upper toilet seat casing of the toilet seat The top view which shows the state which attached the lead wire to the toilet seat heater in Embodiment 1 of this invention The schematic diagram which shows the cross section of the state which attached the toilet seat heater to the upper toilet seat casing of the toilet seat in Embodiment 1 of this invention Plan view of attachment portion of connecting terminal of toilet seat heater in embodiment 1 of the present invention The schematic diagram which shows the cross section of the attachment part of the connecting terminal of the toilet seat heater in Embodiment 1 of this invention The bottom view which shows the state which attached the toilet seat heater to the upper toilet seat casing of the toilet seat in Embodiment 1 of this invention The top view which shows the matching part of the toilet seat heater in Embodiment 1 of this invention Plan view of a conventional toilet seat device Sectional view of a toilet seat heater of a conventional toilet seat device

DESCRIPTION OF SYMBOLS 100 Toilet seat apparatus 400 Toilet seat 410 Upper toilet seat casing 411 Seating surface 411 Seating surface 412 Curved part (slope part)
450 Toilet seat heater (soaking plate)
450as Matching part SE1 Dividing part SE2 Dividing part 451 Metal foil 453 Metal foil 455 Toilet seat insulation film (waterproof insulator)
456 Insulation film (insulator)
459 Waterproof cover (waterproof insulator)
460 Linear heater (heating element)
461 Connection terminal 461a Heater wire connection portion 461c Lead wire connection portion 461d Heat radiation portion 461s Connection portion 470 Lead wire 471 Waterproof insulating film (waterproof insulator)

Claims (4)

A toilet seat having a seating surface rotatably attached to the main body;
A heating element provided on the back side of the seating surface of the toilet seat;
A heat equalizing plate for transmitting heat of the heating element to the toilet seat;
The toilet seat apparatus in which the division part of the said heat equalizing plate was provided in the said main body side. The heating element;
The toilet seat device according to claim 1, wherein a connecting portion for connecting a lead wire for supplying power to the heating element is provided in the divided portion. The connecting portion is
The toilet seat device according to claim 2, wherein the toilet seat device is provided at a substantially central portion on the main body side. The soaking plate is
4. The toilet seat device according to claim 1, wherein the toilet seat device has a configuration in which the heat equalizing plates overlap each other in the vicinity of the divided portion.