JP5522429B2 - Heating toilet seat device - Google Patents

Description

  Aspects of the present invention generally relate to a heating toilet seat device, and more specifically, to a heating toilet seat device capable of heating a toilet seat provided in a toilet bowl.

  In general, the seat surface of the toilet seat is made of a resin such as PP (polypropylene). Therefore, when the user sits on the toilet seat, a hard sitting comfort is given. On the other hand, if you sit on a cold toilet seat when the temperature is low, such as in winter, you will feel cold. Therefore, a heated toilet seat has been proposed in which a cushion portion having elasticity is installed on the seating surface of the toilet seat to improve the sitting comfort. However, since the cushion portion becomes a thermal resistance when the heat of the heater is transmitted to the seating surface, there is a problem that the seating surface is difficult to warm.

  Therefore, there is a heated toilet seat in which a cover having cushioning properties is provided on the toilet seat and the seating surface can be quickly heated with a heater provided on the toilet lid (Patent Document 1). However, in the heating toilet seat described in Patent Document 1, since the heater is not provided in the toilet seat, the temperature of the seating surface is lowered after the toilet lid is opened, and the seating surface cannot be kept at an appropriate temperature. There's a problem.

  On the other hand, there is a heated toilet seat provided with heaters on both the toilet lid and the toilet seat (Patent Documents 2 and 3). However, in the heated toilet seat described in Patent Document 2, power supply to the toilet lid heater is stopped or the power supply amount is reduced after the human body seating detection device that detects that the human body is seated on the toilet seat body detects the human body. Therefore, there is a problem that heat is generated from the toilet lid heater after the toilet lid is opened, resulting in a large energy loss.

  In addition, in the heating toilet seat device described in Patent Document 3, when the temperature detecting means incorporated in the toilet seat knows that the toilet seat has been warmed to an appropriate temperature, the control unit detects a heater (toilet seat heating means) provided on the toilet lid. ) Is stopped. However, when the cushion portion is provided on the seating surface, the temperature difference between the seating surface and the toilet seat increases due to the thermal resistance of the cushion portion, and there is a problem that it is difficult to accurately detect the temperature of the seating surface. On the other hand, if the temperature detecting means is provided near the seating surface in order to detect the temperature of the seating surface with high accuracy, the sitting comfort may be deteriorated.

JP 11-299695 A JP 2000-262434 A JP 2000-14597 A

  The present invention has been made based on recognition of such a problem, and an object of the present invention is to provide a heating toilet seat device that can improve sitting comfort or can save energy.

1st invention has a 1st heater and the toilet seat which has a cushion part provided between the 1st heater and the seating surface which has elasticity, and the 2nd heater, The seating surface A toilet lid that covers the toilet, an entrance detection means for detecting the entrance of a human body into the toilet room, and the entrance detection means that detects the entrance of a human body into the toilet room, the first heater and the second heater The seating surface temperature increasing operation is performed to energize the seating surface to increase the temperature of the seating surface, and then the second heater is energized at a lower output than the seating surface temperature increasing operation to set the temperature of the seating surface to a set temperature. And a control unit that executes a seating surface warming operation that is maintained in the vicinity of the heating toilet seat device.
According to this heating toilet seat device, the seating surface is quickly heated from above and below, and when the seating surface reaches an appropriate temperature, the second heater is set to the second output (low output) to perform the heat retaining operation. Sitting comfort can be improved. Moreover, it is possible to suppress wasteful heat dissipation after the toilet lid is opened, thereby reducing energy loss and saving energy.

Further, the second invention further comprises a human body detecting means for detecting a human body approaching the toilet seat in the first invention, and the control unit detects the human body approaching the toilet seat, The heating toilet seat device is characterized in that energization of the second heater is stopped.
According to this heating toilet seat device, energization of the second heater can be stopped more reliably before the toilet lid is opened. That is, the time difference between the timing at which the energization of the second heater is stopped and the timing at which the toilet lid is opened can be more reliably ensured. Therefore, it can suppress more that wasteful heat dissipation is performed after opening a toilet lid. Thereby, an energy loss can be reduced more and energy saving can be achieved.

According to a third aspect of the present invention, in the first or second aspect , the control unit outputs the second heater more than the first heater during the seating surface temperature increasing operation. Is a heating toilet seat device characterized by setting a large value.
According to this heating toilet seat device, it is possible to quickly heat the seating surface of the toilet seat while saving energy by increasing the output of the second heater built in the toilet lid whose thermal resistance is smaller than that of the toilet seat. it can.

In addition, a fourth invention is the invention according to any one of the first to third inventions, wherein the control unit is configured to perform the predetermined time after energizing the second heater in the seating surface temperature increasing operation. A heating toilet seat device which starts a seating surface warming operation.
According to this heating toilet seat device, there is no need to provide temperature detection means such as a thermistor for detecting the temperature of the seating surface. Thereby, since it is not necessary to provide a hard member such as a thermistor in the vicinity of the seating surface, there is no possibility of reducing the sitting comfort of the seating surface.

In a fifth aspect based on any one of the first to third aspects, the control unit detects a human body entering the toilet room a predetermined time after the entry detecting means detects the human body entering the toilet room. The heating toilet seat device is characterized in that the seating surface heat retaining operation is started.
According to this heating toilet seat device, there is no need to provide temperature detection means such as a thermistor for detecting the temperature of the seating surface. Thereby, since it is not necessary to provide a hard member such as a thermistor in the vicinity of the seating surface, there is no possibility of reducing the sitting comfort of the seating surface.

According to a sixth aspect of the present invention, in the second aspect of the present invention, the automatic lid opening / closing device for opening and closing the toilet lid is further provided, and the control unit stops the energization of the toilet lid after stopping energization of the second heater. A heating toilet seat device that drives an opening and closing device to open the toilet lid.
According to this heating toilet seat device, it is possible to suppress unnecessary heat radiation after the toilet lid is opened. Thereby, energy loss can be reduced and energy saving can be achieved.

  ADVANTAGE OF THE INVENTION According to the aspect of this invention, the heating toilet seat apparatus which can improve sitting comfort or can aim at energy saving is provided.

It is a perspective schematic diagram which illustrates the toilet apparatus provided with the heating toilet seat apparatus concerning embodiment of this invention. It is a cross-sectional schematic diagram showing the cross section of the toilet seat and toilet lid of this embodiment. It is a cross-sectional schematic diagram showing the cross section of the toilet seat and toilet lid concerning the comparative example of this embodiment. It is a cross-sectional schematic diagram showing the cross section of the toilet seat and toilet lid concerning the other comparative example of this embodiment. It is a timing chart which illustrates the example of operation | movement of the heating toilet seat apparatus concerning this embodiment. It is a timing chart which illustrates other specific examples of operation of the heating toilet seat device concerning this embodiment. It is a timing chart which illustrates the other specific example of operation of the heating toilet seat device concerning this embodiment. It is a timing chart which illustrates the other specific example of operation of the heating toilet seat device concerning this embodiment. It is a timing chart which illustrates the other specific example of operation of the heating toilet seat device concerning this embodiment. It is a timing chart which illustrates the other specific example of operation of the heating toilet seat device concerning this embodiment.

Embodiments of the present invention will be described below with reference to the drawings. In addition, in each drawing, the same code | symbol is attached | subjected to the same component and detailed description is abbreviate | omitted suitably.
FIG. 1 is a schematic perspective view illustrating a toilet apparatus including a heated toilet seat apparatus according to an embodiment of the invention.
FIG. 2 is a schematic cross-sectional view showing a cross section of the toilet seat and toilet lid of the present embodiment.
2 corresponds to a cross-sectional view taken along the line AA in FIG. 1 in a state where the toilet lid is closed.

  The toilet device shown in FIG. 1 includes a Western-style seat toilet (hereinafter simply referred to as “toilet” for convenience of explanation) 800 and a heated toilet seat device 100 provided thereon. The heating toilet seat device 100 includes a heating toilet seat function unit 400, a toilet seat 200, and a toilet lid 300. The toilet seat 200 and the toilet lid 300 are pivotally supported by the heating toilet seat function unit 400 so as to be freely opened and closed.

  As illustrated in FIG. 2, the toilet seat 200 includes a first heater 210. The first heater 210 can heat the toilet seat 200 by being energized and generating heat. That is, the first heater 210 generates heat transferred to the surface (sitting surface) of the toilet seat. In the toilet seat 200 shown in FIG. 1, one first heater 210 is installed so as to reciprocate. However, the installation form and the number of installations of the first heater 210 are not limited to this, for example, 2 A plurality of first heaters 210 may be installed.

  The toilet lid 300 incorporates a second heater 310 as in the toilet seat 200. The second heater 310 can heat the surface (sitting surface) of the toilet seat 200 by generating heat when energized. That is, the second heater 310 generates heat radiated to the seating surface of the toilet seat 200 when the toilet lid 300 is closed, that is, when the toilet lid 300 covers the upper side of the toilet seat 200. In the toilet lid 300 shown in FIG. 1, one second heater 310 is installed so as to reciprocate. However, the installation form and the number of installation of the second heaters 310 are not limited to this. For example, Two or more second heaters 310 may be installed.

  As the first and second heaters 210 and 310, so-called “tubing heaters”, “sheath heaters”, “halogen heaters”, “carbon heaters”, and the like can be used. Further, the shape of the first and second heaters 210 and 310 may be any of a wire shape, a sheet shape, a mesh shape, and the like.

  The toilet seat 200 is provided adjacent to the base member 230, the cushion portion 240 having elasticity (cushioning property), the surface portion 250 covering the upper surface and the side surface of the cushion portion 240, and the first heater 210. It has a heat conductor 260, a heat insulating material 220 provided inside the base material 230, and a support 270 that supports the toilet seat 200. The base material 230 has an upper plate 231 and a bottom plate 233. However, the base material 230 may be integrally formed. The surface of the surface portion 250 functions as a seating surface.

  The toilet lid 300 includes a base material 330, a heat conductor 360 provided adjacent to the second heater 310, and a heat insulating material 320 provided inside the base material 330. The base material 330 has an upper plate 331 and a bottom plate 333. However, the base material 330 may be integrally formed.

  The base materials 230 and 330 are made of a resin such as PP (polypropylene). Examples of the heat conductors 260 and 360 include an aluminum sheet and a carbon sheet. The heat insulating material 220 of the toilet seat 200 can suppress the heat dissipation downward of the toilet seat 200, while the heat insulating material 320 of the toilet lid 300 can suppress the heat dissipation upward of the toilet lid 300. Moreover, the cushion part 240 is formed of a softer material than the base material 230, and when the user sits on the toilet seat 200, the cushion part 240 is deformed according to the weight and disperses the weight. Since the cushion part 240 is provided on the base material 230 and has cushioning properties, the sitting comfort when the user sits on the toilet seat 200 can be improved.

  The heating toilet seat function unit 400 includes a control unit 410 that controls energization amounts (heating amounts) of the first and second heaters 210 and 310. Further, the heating toilet seat function unit 400 includes a seating detection unit 420 that detects a user's seating on the toilet seat 200, a human body detection unit 430 that detects a user (human body) approaching the toilet seat 200, and a use in a toilet room. And an entrance detection means 440 for detecting entrance of a person (human body).

  As the seating detection means 420, the human body detection means 430, and the room entry detection means 440, for example, infrared sensors such as pyroelectric sensors and ranging sensors, microwave sensors such as ultrasonic sensors, and Doppler sensors, etc. Can be used. The pyroelectric sensor is more suitable for the room entry detection means 440 in that it can quickly detect the approach of the user. The distance measuring sensor is more suitable for the human body detecting means 430 that detects whether or not the user is in the toilet room.

  In the toilet apparatus shown in FIG. 1, a recessed portion 441 is formed on the upper surface of the heating toilet seat function unit 400, and a room entry detecting unit 440 is provided so as to be partially embedded in the recessed portion 441. When the toilet lid 300 is closed, the entry detection means 440 detects the entry of the user through the transmission window 301 provided in the vicinity of the base.

  The heating toilet seat function unit 400 includes a toilet lid automatic opening / closing device 450 that opens and closes the toilet lid 300. The toilet lid automatic opening / closing device 450 is installed, for example, in the vicinity of a position where the toilet lid 300 is pivotally supported with respect to the heating toilet seat function unit 400, and can open and close the toilet lid 300 by a signal from the control unit 410.

  The heated toilet seat function unit 400 may be provided with a function unit as a sanitary washing device. That is, the heating toilet seat function unit 400 may appropriately include a sanitary washing function unit having a water discharge nozzle (not shown) that ejects water toward the “butt” of the user sitting on the toilet seat 200. In the present specification, “water” includes not only cold water but also heated hot water.

  Furthermore, the heating toilet seat function unit 400 has a “hot air drying function”, a “deodorizing unit”, and an “indoor heating unit” that blows hot air toward the “butt” of the user sitting on the toilet seat 200 and dries it. Various mechanisms such as these may be provided as appropriate. At this time, an exhaust port 443 from the deodorizing unit and an exhaust port 445 from the indoor heating unit are appropriately provided on the side surface of the heating toilet seat function unit 400. However, in the present invention, the sanitary washing function unit and other additional function units are not necessarily provided.

  FIG. 3 is a schematic cross-sectional view illustrating a cross section of a toilet seat and a toilet lid according to a comparative example of the present embodiment. FIG. 4 is a schematic cross-sectional view showing a cross section of a toilet seat and a toilet lid according to another comparative example of the present embodiment.

  The toilet lid 300a of the comparative example shown in FIG. 3 is not provided with a heater for warming the seating surface. On the other hand, the toilet seat 200a incorporates a first heater 210. That is, the seating surface of the toilet seat 200 a of the comparative example shown in FIG. 3 is warmed by the heat transmitted from the first heater 210. Here, the heat resistance of the cushion portion 240 having elasticity is generally large, and it may take a long time for the heat of the first heater 210 to be transmitted to the seating surface. Therefore, the seating surface of the toilet seat 200a of this comparative example may be difficult to warm up.

  Moreover, the toilet seat 200b of the comparative example shown in FIG. 4 is not provided with a cushion portion having cushioning properties. Therefore, the heat of the first heater 210 is easily transmitted to the seating surface of the toilet seat 200b, and the seating surface is easily warmed. However, in this comparative example, since the cushion part 240 is not provided, when the user sits on the toilet seat, a hard sitting comfort may be given. Therefore, the sitting comfort in the sitting state is not so good, and the user may feel pain when sitting for a long time. The structure of the toilet lid 300a of this comparative example is the same as the structure of the toilet lid 300a of the comparative example shown in FIG.

  On the other hand, the toilet lid 300 of the heating toilet seat device 100 according to the present embodiment incorporates the second heater 310. The toilet seat 200 has a cushion portion 240 having cushioning properties, and has a first heater 210 built-in. Therefore, the seating surface of the toilet seat 200 is warmed by heat transmitted from the first heater 210 and heat radiated from the second heater 310.

  When the entrance detection means 440 detects the user entering the toilet room, the control unit 410 energizes the first and second heaters 210 and 310 to generate heat at a high output (first output). A seating surface temperature increasing operation for increasing the temperature of the seating surface of the toilet seat 200 is executed. Thereafter, when controller 410 determines that the temperature of the seating surface of toilet seat 200 has approached the set temperature, it stops energization of second heater 310 and energizes first heater 210 to reduce the temperature of the seating surface. The seating surface warming operation is performed to maintain the temperature near the set temperature. Alternatively, when the control unit 410 determines that the temperature of the seating surface of the toilet seat 200 has approached the set temperature, the control unit 410 energizes the second heater 310 and outputs a low output (second output) smaller than the high output (first output). The seating surface warming operation is performed to maintain the temperature of the seating surface in the vicinity of the set temperature by generating heat in step).

  According to this, the seating surface is quickly heated from above and below, and when the seating surface reaches an appropriate temperature, the second heater is deenergized or the output is kept low to perform the heat retaining operation, thereby improving the sitting comfort. Can be made. Furthermore, energy saving can be achieved. Moreover, since the toilet seat 200 is provided with a cushion portion having cushioning properties, the sitting comfort can be improved. Hereinafter, the specific example of operation | movement of the heating toilet seat apparatus 100 concerning this embodiment is demonstrated, referring drawings.

FIG. 5 is a timing chart illustrating a specific example of the operation of the heating toilet seat device according to this embodiment.
First, when the heating toilet seat device 100 is in a standby state (before timing t1), the control unit 410 stops energization of the first heater 210 and energizes the second heater 310 to generate heat at a low output. Thereby, the temperature of the seating surface of the toilet seat 200 is low (low temperature standby).

  Subsequently, when the entrance detection means 440 detects the user entering the toilet room, the controller 410 energizes the first heater 210 and the second heater 310 to generate heat at a high output larger than the low output. Then, the seating surface temperature increasing operation for increasing the temperature of the seating surface of the toilet seat 200 is performed (timing t1). At this time, it is more preferable that the control unit 410 is energized so that the output of the second heater 310 is larger than the output of the first heater 210. This is because the heat resistance of the cushion part 240 of the toilet seat 200 is generally large, and it takes a long time for the heat of the first heater 210 to be transmitted to the seating surface, while the toilet lid 300 has the cushion part 240. This is because the heat of the second heater 310 is transmitted to the seating surface earlier than the heat of the first heater 210. Thereby, the seating surface of the toilet seat 200 can be rapidly heated from above and below.

  Subsequently, when the controller 410 determines that the temperature of the seating surface of the toilet seat 200 has approached the set temperature, the controller 410 stops energization of the second heater, energizes the first heater, and outputs a medium output smaller than the high output. By generating heat, a seating surface heat retaining operation is performed to maintain the temperature of the seating surface in the vicinity of the set temperature (timing t2).

  The controller 410 determines that the temperature of the seating surface of the toilet seat 200 has approached the set temperature, for example, after a predetermined time has passed since the second heater is energized to generate heat with high output (from timing t1). is there. Alternatively, the controller 410 determines that the temperature of the seating surface of the toilet seat 200 has approached the set temperature, for example, after the entrance detection means 440 detects the user entering the toilet room (from timing t1). After a predetermined time. Here, the predetermined time is an estimated time from the timing t1 until the temperature of the seating surface reaches an appropriate temperature, and is determined in consideration of the outputs of the first and second heaters 210 and 310, the structure of the toilet seat 200, and the like. It is time to

  Thus, it is not necessary to provide temperature detection means such as a thermistor for detecting the temperature of the seating surface by estimating the time when the temperature of the seating surface of the toilet seat 200 approaches the set temperature. Thereby, since it is not necessary to provide a hard member such as a thermistor in the vicinity of the seating surface, there is no possibility of reducing the sitting comfort of the seating surface.

  Subsequently, the control unit 410 drives the toilet lid automatic opening / closing device 450 to open the toilet lid 300 (timing t3). Here, the timing when the control unit 410 opens the toilet lid 300 is, for example, a predetermined time after energizing the second heater and generating heat with high output. Alternatively, the timing at which the control unit 410 opens the toilet lid 300 is, for example, a predetermined time after the entry detection means 440 detects the user entering the toilet room. That is, the timing when the control unit 410 opens the toilet lid 300 is after determining that the temperature of the seating surface of the toilet seat 200 has approached the set temperature. Alternatively, the timing at which the control unit 410 opens the toilet lid 300 is, for example, when the user performs an operation to open the toilet lid 300 from an operation unit such as a remote controller (not shown).

  In this specific example, there is a time difference between the timing at which the control unit 410 starts executing the seating surface warming operation and the timing at which the toilet lid 300 is opened (timing t2 to t3). Therefore, it is possible to suppress unnecessary heat dissipation after the toilet lid 300 is opened. Thereby, energy loss can be reduced and energy saving can be achieved.

  Subsequently, the user sits on the toilet seat 200 (timing t4), finishes the toilet, gets up from the toilet seat 200 (timing t5), and leaves the toilet room (timing t6). And control part 410 drives toilet lid automatic opening and closing device 450, and closes toilet lid 300 (timing t7) after a fixed time after a user leaves a toilet room. At substantially the same time, the control unit 410 stops energization of the first heater 210 and energizes the second heater 310 to generate heat with low output (timing t7). As a result, the temperature of the seating surface of the toilet seat 200 gradually decreases to a low temperature (low temperature standby) (timing t8).

  According to this specific example, when the entrance detection means 440 detects the user entering the toilet room, the control unit 410 performs the seating surface temperature increasing operation (timing t1), and the temperature of the seating surface of the toilet seat 200 is increased. If it is determined that the temperature has approached the set temperature, the seating surface heat retaining operation is executed (timing t2). Therefore, the heated toilet seat device 100 of this example can improve the sitting comfort by quickly setting the seating surface to an appropriate temperature. In addition, it is possible to suppress wasteful heat dissipation after opening the toilet lid 300, and it is possible to reduce energy loss and save energy.

FIG. 6 is a timing chart illustrating another specific example of the operation of the heating toilet seat device according to this embodiment.
In this specific example, when the controller 410 determines that the temperature of the seating surface of the toilet seat 200 has approached the set temperature, the second heater is energized to generate heat at a low output, and the first heater is energized at a medium output. By generating heat, a seating surface heat retaining operation is performed to maintain the temperature of the seating surface in the vicinity of the set temperature (timing t2). That is, when the controller 410 determines that the temperature of the seating surface of the toilet seat 200 has approached the set temperature, the controller 410 reduces the output of the second heater (timing t2).

  Then, the controller 410 energizes the second heater until the toilet lid 300 is opened to generate heat at a low output (timing t2 to t3), and stops energization of the second heater when the toilet lid 300 is opened. (Timing t3). Other operations are similar to those of the specific example described above with reference to FIG.

  According to this specific example, when the entrance detection means 440 detects the user entering the toilet room, the control unit 410 quickly heats the seating surface of the toilet seat 200 from above and below, and the temperature of the seating surface of the toilet seat 200 is increased. After determining that the temperature has approached the set temperature, the second heater is energized to generate heat at a low output. Therefore, the second heater 310 can heat the seating surface until just before the toilet lid 300 is opened. Thereby, the heating toilet seat apparatus 100 of this example can make a seating surface temperature quickly, and can improve sitting comfort more. Further, when the toilet lid 300 is opened, the control unit 410 stops energization of the second heater, and therefore, it is possible to suppress unnecessary heat radiation after the toilet lid 300 is opened. Thereby, energy loss can be reduced and energy saving can be achieved.

FIG. 7 is a timing chart illustrating still another specific example of the operation of the heating toilet seat device according to this embodiment.
In this specific example, when the human body detection unit 430 detects a user approaching the toilet seat 200, the control unit 410 stops energization of the second heater (timing t2). On the other hand, when the human body detection unit 430 detects a user approaching the toilet seat 200, the control unit 410 energizes the first heater 210 to continue heat generation at a high output (timing t2), and the toilet lid 300 is opened. Then, the first heater is energized to generate heat with medium output (timing t3). Other operations are similar to those of the specific example described above with reference to FIG.

  According to this specific example, the control unit 410 can more reliably stop energization of the second heater 310 before the toilet lid 300 is opened. That is, the time difference between the timing at which the energization of the second heater 310 is stopped and the timing at which the toilet lid 300 is opened can be more reliably ensured. Therefore, it is possible to further suppress unnecessary heat radiation after the toilet lid 300 is opened. Thereby, an energy loss can be reduced more and energy saving can be achieved.

FIG. 8 is a timing chart illustrating still another specific example of the operation of the heating toilet seat device according to this embodiment.
In this specific example, when the room entry detecting means 440 detects the user entering the toilet room, the control unit 410 energizes the first heater 210 to generate heat at the medium output, and energizes the second heater 310 to increase the power. By generating heat with the output, a seating surface temperature raising operation is performed to raise the temperature of the seating surface of the toilet seat 200 (timing t1). That is, the control unit 410 energizes so that the output of the second heater 310 is larger than the output of the first heater 210. Other operations are similar to those of the specific example described above with reference to FIG.

  According to this specific example, by increasing the output of the second heater 310 built in the toilet lid 300 having a thermal resistance smaller than that of the toilet seat 200, the seating surface of the toilet seat 200 can be quickly heated while saving energy. can do. This is because, as described above with reference to FIG. 5, the heat of the second heater 310 is transmitted to the seating surface faster than the heat of the first heater 210 without being affected by the thermal resistance.

FIG. 9 is a timing chart illustrating still another specific example of the operation of the heating toilet seat device according to this embodiment.
This example is a modification of the example described above with reference to FIG. In the specific example illustrated in FIG. 8, the control unit 410 opens the toilet lid 300 after stopping the energization of the second heater, whereas in the specific example, the control unit 410 opens the toilet lid 300. The second heater 310 is energized until it is heated, and heat generation at a high output is continued (timing t1 to t2). Then, when the toilet lid 300 is opened, the control unit 410 stops energization of the second heater (timing t2). Other operations are similar to those of the specific example described above with reference to FIG.

  According to this specific example, the seating surface can be heated until immediately before the toilet lid 300 is opened, so that the seating surface can be quickly brought to an appropriate temperature to further improve the sitting comfort. Further, when the toilet lid 300 is opened, the control unit 410 stops energization of the second heater, and therefore, it is possible to suppress unnecessary heat radiation after the toilet lid 300 is opened. Thereby, energy loss can be reduced and energy saving can be achieved.

FIG. 10 is a timing chart illustrating still another specific example of the operation of the heating toilet seat device according to this embodiment.
In this specific example, when the heating toilet seat device 100 is in a standby state (before timing t1), the control unit 410 energizes the first heater 210 to generate heat at a low output smaller than the intermediate output, and the second heater 310 To generate heat with low output. That is, the seating surface of the toilet seat 200 is kept warm by the first and second heaters 210 and 310 in the standby state. Thereby, the seating surface of the toilet seat 200 of this specific example is kept warm at a higher temperature than the seating surface of the toilet seat 200 of the specific example described above with reference to FIGS.

  Even when the seating surface temperature increasing operation for increasing the temperature of the seating surface of the toilet seat 200 is being performed, the control unit 410 manually opens the toilet lid 300 or operates a remote controller (not shown). When the toilet lid 300 is opened by an operation from the unit, the energization of the second heater 310 is stopped (timing t2). On the other hand, even when the toilet lid 300 is opened, the control unit 410 energizes the first heater 210 and continues heat generation at a high output (timing t2). As described above, even when the controller 410 stops energization of the second heater 310 during the seating surface temperature increasing operation, the seating surface of the toilet seat 200 is more in the standby state (before timing t1). Since it is kept at a high temperature, the first heater 210 can quickly heat the seating surface and raise the temperature to the set temperature.

  Subsequently, when the control unit 410 determines that the temperature of the seating surface of the toilet seat 200 has approached the set temperature, the control unit 410 energizes the first heater to generate heat at the medium output, thereby bringing the seating surface temperature close to the set temperature. The seating surface heat retaining operation is maintained (timing t3). When the user leaves the toilet room, the control unit 410 energizes the first heater 210 to generate heat with low output (timing t6). Other operations are similar to those of the specific example described above with reference to FIG.

  According to this specific example, the control unit 410 energizes the second heater 310 when the toilet lid 300 is opened even when the seating surface temperature increasing operation for increasing the temperature of the seating surface of the toilet seat 200 is being performed. Since it stops, it can suppress performing useless heat dissipation after opening the toilet lid 300. FIG. In addition, since the seating surface of the toilet seat 200 is kept at a higher temperature in the standby state, even when the user rushes to open the toilet lid 300 and sits on the toilet seat 200, the seating surface is quickly and appropriately heated. It is possible to improve the sitting comfort.

  As described above, according to the present embodiment, when the entrance detection means 440 detects the user entering the toilet room, the control unit 410 energizes the first and second heaters 210 and 310 and outputs high power. The seating surface temperature increasing operation for increasing the temperature of the seating surface of the toilet seat 200 is performed by generating heat in step (b). Thereafter, when controller 410 determines that the temperature of the seating surface of toilet seat 200 has approached the set temperature, it stops energization of second heater 310 and energizes first heater 210 to reduce the temperature of the seating surface. The seating surface warming operation is performed to maintain the temperature near the set temperature. Alternatively, when the controller 410 determines that the temperature of the seating surface of the toilet seat 200 has approached the set temperature, the controller 410 sets the temperature of the seating surface by energizing the second heater 310 and generating heat at a low output smaller than the high output. The seating surface warming operation is performed to maintain the temperature in the vicinity. Therefore, the seating surface is quickly heated from above and below, and when the seating surface reaches an appropriate temperature, the second heater is de-energized or the output is kept low so that the warming operation is performed. it can. In addition, it is possible to suppress wasteful heat dissipation after opening the toilet lid 300, and it is possible to reduce energy loss and save energy.

The embodiment of the present invention has been described above. However, the present invention is not limited to these descriptions. As long as the features of the present invention are provided, those skilled in the art appropriately modified the design of the above-described embodiments are also included in the scope of the present invention. For example, the shape, dimensions, material, arrangement, etc. of each element included in the toilet seat 200, the toilet lid 300, and the like, and the installation form of the entrance detection means 440 and the human body detection means 430 are not limited to those illustrated, but can be changed as appropriate. can do. That is, for example, the room entry detection unit 440 and the human body detection unit 430 are not limited to being incorporated in the heating toilet seat function unit 400, and may be provided outside the heating toilet seat function unit 400.
Moreover, each element with which each embodiment mentioned above is provided can be combined as long as technically possible, and the combination of these is also included in the scope of the present invention as long as it includes the features of the present invention.

  DESCRIPTION OF SYMBOLS 100 Heating toilet seat apparatus, 200, 200a, 200b Toilet seat, 210 1st heater, 220 Thermal insulation material, 230 Base material, 231 Top plate, 233 Bottom plate, 240 Cushion part, 250 Surface part, 260 Thermal conductor, 270 Support body, 300 toilet lid, 300a toilet lid, 301 permeation window, 310 second heater, 320 heat insulating material, 330 base material, 331 top plate, 333 bottom plate, 360 thermal conductor, 400 heating toilet seat function unit, 410 control unit, 420 seating Detection means, 430 human body detection means, 440 entry detection means, 441 recessed portion, 443 exhaust port, 445 discharge port, 450 toilet lid automatic opening / closing device, 800 Western style toilet

Claims (6)

A toilet seat having a first heater and a resilient cushion portion provided between the first heater and a seating surface;
A toilet lid that has a second heater and covers the seating surface;
An entry detection means for detecting the entry of a human body into the toilet room;
When the entrance detection means detects the entrance of a human body into the toilet room, a seating surface temperature raising operation is performed to energize the first heater and the second heater to raise the temperature of the seating surface, and then A control unit that performs a seating surface warming operation for energizing the second heater at a lower output than the seating surface temperature raising operation to maintain the temperature of the seating surface near a set temperature;
A heating toilet seat device comprising: Further comprising a human body detecting means for detecting a human body approaching the toilet seat,
Wherein, when detecting a human body in which the human body detecting means is close to the toilet seat, toilet seats according to claim 1, wherein the stopping the energization of the second heater. The said control part sets the output of a said 2nd heater larger than the output of a said 1st heater during execution of the said seating surface temperature rising operation, The Claim 1 or 2 characterized by the above-mentioned. Heating toilet seat device. Wherein, after the seating MenNoboru temperature predetermined energizing of the second heater in the operation time, in any one of claims 1-3, characterized in that initiating the seating surface insulation operation The heating toilet seat device described. Wherein, from the entering-room detection means detects the entry of a human body into the toilet chamber after a predetermined time, any one of the claims 1-3, characterized in that initiating the seating surface insulation operation Heating toilet seat device according to one. Further comprising a toilet lid automatic opening and closing device for opening and closing the toilet lid,
The heating toilet seat device according to claim 2 , wherein the controller drives the toilet lid automatic opening / closing device to open the toilet lid after the energization of the second heater is stopped.

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