JP4501410B2 - Toilet equipment - Google Patents

Description

  The present invention relates to a toilet apparatus having instantaneous heating means for instantaneously heating water to warm water.

  Conventionally, this type of toilet apparatus has been as shown in FIG. 9 (see, for example, Patent Document 1).

  In FIG. 9, the heat exchanger 1 includes a hollow cylindrical ceramic heater 4 in which a water supply pipe 3 is inserted into a hot water storage housing 2 and an electric heating element formed integrally with the water supply pipe 3 is buried on the outer surface side. Is provided with a heating tank 6 surrounded by a sleeve 5 made of a metal material having good thermal conductivity such as copper, and the heating tank 6 goes through the inner flow path toward the tip (right direction in the figure). The water storage housing 2 is horizontally mounted and fixed in a state of being inclined downward so as to have a watertight structure. A space above the heating tank 6 in the hot water storage housing 2 is used as a hot water storage portion 7, and a float switch 8 for preventing emptying is incorporated in a part of the hot water storage portion 2 at an appropriate position that does not hinder the flow of cleaning water. ing. At the base end (left direction in the figure) of the heater 4, a through hole 9 is formed in the bulging portion a provided on the wall surface of the hot water storage housing 2 in the vertical direction from the upper end surface of the housing 2. The heating tank 6 and the hot water storage section 7 of the hot water storage housing 2 are communicated with each other. In the lower opening b facing the heating tank 6 of the through-hole 9, the baffle plate 10 is placed on the wall surface of the housing 2 with the wall surface of the hot water storage housing 2 blocking about half of the cross-sectional area of the opening b. And is formed horizontally in the heating tank 6.

  Further, an opening c communicating with the hot water storage section 7 is opened at an upper portion of the through hole 9 located in the hot water storage housing 2, and in the through hole 9 having the openings b and c at the upper and lower portions. The temperature detecting portion 11a of the temperature sensor 11 attached to the upper part of the hot water storage housing 2 is inserted in a range that does not protrude into the heating tank 6 from the lower opening b. A bimetal switch 12 for preventing heating is attached to the upper center of the hot water storage housing 2.

  Next, the operation will be described. When not in use, the washing water kept at an appropriate temperature in the heat exchanger 1 is stored in the hot water storage section 7 and the heating tank 6. In this state, at the time of use, water flows into the heat exchanger 1 and the heater 4 starts full energization. While the water flows between the outer surface of the heater 4 and the sleeve 5 from the inside of the heater 4, the water is heated by the heater 4 and flows into the hot water storage section 7. On the other hand, the hot water kept in the heat exchanger 1 is sequentially pushed out from the hot water storage housing 2 by the wash water flowing from the water supply pipe 3.

  In this way, when the cleaning water flows into the heat exchanger 1 through the water supply pipe 3 during the local cleaning, the cleaning water is heated by the heater 4 to become warm water. The temperature of the hot water is detected by a temperature sensor 11 in which a temperature detecting portion 11a is inserted into a through hole 9 that allows the heating tank 6 and the hot water storage portion 7 to communicate with each other, and the detected temperature is higher or lower than the preset temperature. If there is a difference, the heater 4 is energized (on / off) in accordance with a command from the control device and maintained at a predetermined temperature set in advance. However, when the cold water is heated and supplied to the appropriate temperature water by the heat exchanger 1, the water stays in the heating tank 6 without receiving the heating action of the heater 4 by the washing water flowing in from the water supply pipe 3. When the low temperature water is pushed out to the through hole 9 side, the low temperature water rises directly upward in the direction of the through hole 9.

However, since the lower opening b of the through hole 9 is blocked about half of the area by the baffle plate 10 that protrudes horizontally in the heating tank 6, the low-temperature water flows horizontally along the baffle plate 10. Go to (distal end side of the heating tank 6), and mixing them come in contact with hot water flowing through is heated by the heater 4 to the through vent hole 9 side at the front side of the lower opening b of the through vent hole 9. The mixed washing water is pushed out from the lower opening b of the through hole 9 to the hot water storage section 7 through the upper opening c. At this time, since most of the water is mixed with the washing water heated by the heater 4, the temperature of the mixed warm water is detected by the temperature detection unit 11 a of the temperature sensor 11 when passing through the through-hole 9. Although it is performed, the detected temperature is not low temperature water but mixed water, so that the detected temperature can detect a temperature close to the set temperature.
Japanese Patent No. 3325874

  However, in the conventional toilet device, the heater 4 is abnormally overheated when the temperature sensor 11 fails because the heating tank 6 with the heater 4 and the hot water storage unit 7 with the bimetal switch 12 for preventing heating are separated. In this case, the reaction of the bimetal switch 12 is deteriorated, and there is a problem that hot water is discharged.

  An object of the present invention is to solve the above-described conventional problems, and to provide a toilet apparatus that turns off energization instantaneously and prevents hot water from being poured out when an instantaneous heating means is abnormally heated.

In order to solve the above-described conventional problems, a toilet apparatus according to the present invention includes nozzle means for ejecting washing water locally, water supply means for supplying washing water toward the nozzle means, and water supplied to the nozzle means. Instantaneous heating means for instantaneously heating to warm water, wherein the instantaneous heating means comprises a flat heater, a case covering the flat heater, a partition provided on the inner surface of the case, and the partition a heating water channel serpentine is formed, and the heat sensitive plate having a thermal conductivity effects that forms part of the heating water channel, with a safety device and in contact with the thermal plate, the thermal plate is formed in the case the It has a partition convex portion formed in a convex shape so as to form part of the formation of the heating water channel meandering with the partition, and the partition convex portion is in contact with the heater .

  As a result, the instantaneous heating means can instantaneously turn off the energization during abnormal heating so that hot water is not discharged.

  The toilet apparatus of the present invention can turn off the power supply instantaneously when the instantaneous heating means abnormally heats up, and prevents hot water from being discharged.

According to a first aspect of the present invention, there are provided nozzle means for ejecting cleaning water locally, water supply means for supplying cleaning water toward the nozzle means, and instantaneous heating means for instantaneously heating water supplied to the nozzle means to hot water The instantaneous heating means includes a flat heater, a case covering the flat heater, a partition provided on an inner surface of the case, a meandering heating channel formed by the partition, and the heating comprising a heat-sensitive plate having a thermal conductivity effects that form part of the waterway, the safety device and in contact with the thermal plate, the thermal plate of the formation of the heating water channel serpentine together with the partition wall formed in the case one By providing a toilet device having a configuration in which the partition wall convex portion is formed so as to form a portion, and the partition wall convex portion is in contact with the heater, an abnormal heating temperature can be reliably secured to the heat sensitive plate. To the safety device instantly via Bets can be, instantaneous heating means is turned OFF instantaneously energized during abnormal heating, the hot water can be prevented by tapping.

In particular, the heat sensitive plate has a partition convex portion formed in a convex shape so as to form a part of the formation of the heating water channel meandering with the partition formed in the case, and the partition convex portion is in contact with the heater. Even if a heat sensitive plate is installed on the part of the heating channel of the partition wall convex part, the flowing water flows smoothly through the case and the heat of the heater is directly transmitted to the heat sensitive plate, so that the heater senses the safety device during abnormal heating. Time can be shortened.

According to a second aspect of the invention, in particular, the instantaneous heating means in the first aspect of the invention has a rib for fixing the heater to the inner surface of the case, and the heater is disposed in front of the partition convex portion of the heat sensitive plate and the case.
It is fixed by being sandwiched in contact with the rib, and there is no gap between the heater and the heat sensitive plate, so that abnormal heating of the heater can be reliably and quickly transmitted to the heat sensitive plate, and the inclination of the heater can be controlled. It is possible to suppress this, and to make water flow smoothly by making an arbitrary cross section of the heating channel uniform.

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

(Embodiment 1)
1 to 4 show a toilet apparatus according to Embodiment 1 of the present invention.

3 and 4, the check valve 13 connected to the water supply terminal has a strainer (not shown) built in the inlet portion and a drain plug 14. The outlet of the check valve 13 is connected to a water stop electromagnetic valve 16 through a constant flow valve 15. The outlet of the water stop solenoid valve 16 is connected to the inlet of a water pump 19 driven by a pump motor 18 via a vacuum breaker valve 17. The vacuum breaker valve 17 is configured to introduce air when the inlet side of the water pump 19 becomes negative pressure, and is configured to branch and discharge overflow water to the water tank. Outlet of the water pump 19 is connected to the inlet 21a of the instantaneous type pressurized heating means 21 via a flow sensor 20, by controlling the driving of the pump motor 18 by detecting the flow rate by the flow sensor 20, a precisely constant flow washing water and it is configured to deliver the instantaneous type pressurized heating means 21. A water supply means 22 is constituted by the flow rate sensor 20 from the check valve 13.

Instantaneous type pressurized heating means 21 heating water channel 24 washing water meanders flows is to face the heating water channel 24 with provided flat ceramic heater 4 is disposed inside the case 23, the outlet 21b Further, a temperature sensor 11 for detecting the temperature of the hot water and a safety thermo switch 25 are provided. And it is comprised so that the hot water of predetermined temperature may be obtained by performing electricity supply control with respect to the heater 4 according to the detection signal of the temperature sensor 11. FIG.

Further, in order to prevent abnormal heating of the heater 4, a safety device (thermal fuse) 26 (see FIG. 4) described later is provided. Hot water delivered from the outlet 21b of the instantaneous type pressurized heating means 21 is injected into the local at the nozzle means 27.

Next, a detailed configuration of the heating water channel 24 of the instantaneous type pressurized heating means 21 in FIG. 1. A heat sensitive plate 28 that forms part of the heating water channel 24 of the instantaneous heating means 21 and has a heat conduction action and a safety device (temperature fuse) 26 that contacts the heat sensitive plate 28 are disposed.

  Next, the safety control configuration will be described with reference to FIG. A triac 30, a water stop solenoid valve 16, a safety device (temperature fuse) 26, and a thermoswitch 25 that are linked to the power supply 29 in conjunction with the hot water ejection switch and the energization of the heater 4 are connected in series, and the safety device (temperature fuse). Even if either of the switch 26 and the thermo switch 25 is cut off, the power supply to the water stop solenoid valve 16 is stopped and the water supply is immediately stopped. Further, a detecting means 31 for detecting the voltage across the water stop solenoid valve 16 is provided, and the transistor 32 for controlling the energization of the pump motor 18 is turned on by the detection signal. Accordingly, the pump motor 18 is driven when the water stop electromagnetic valve 16 is opened, and the pump motor 18 is also stopped simultaneously when the water stop electromagnetic valve 16 is closed.

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

When hot water ejection switch is turned ON, the water pump 19 with open electromagnetic shutoff valve 16 is washing water supplied to the instantaneous type pressurized heating means 21 is operated, the detection by the temperature sensor 11 in the instantaneous type pressurized heating means 21 The washing water is heated to a predetermined temperature by the heater 4 that is energized and controlled according to the temperature, and is ejected from the nozzle means 27 to the local area. Also, if the temperature sensor 11 does not work during abnormal heating, power supply to the water stop solenoid valve 16 stops and water supply stops immediately regardless of which of the safety device (temperature fuse) 26 and the thermo switch 25 is cut off. It has become.

  As described above, in the present embodiment, the abnormal heating temperature is ensured instantaneously through the thermal plate 28 by using the thermal plate 28 in a part of the heating channel 24 of the instantaneous heating means 21. ) 26, it is possible to cope with temperature changes, and the instantaneous heating means 21 can instantaneously turn off the power supply during abnormal heating so that hot water is not discharged.

  In the present embodiment, a thermal fuse is employed as the safety device 26, but other means capable of detecting the temperature, such as a thermostat or a thermistor, may be used.

(Embodiment 2)
FIG. 5 shows the instantaneous heating means of the toilet apparatus according to Embodiment 2 of the present invention.

  In the present embodiment, the difference from the configuration of the first embodiment is that the heat sensitive plate 28 includes a flowing water portion 34 having substantially the same plane as the flowing water surface 33 of the heating water channel 24 provided in the instantaneous heating means 21, and A partition wall convex portion 36 that forms a substantially extended line of the partition wall 35 of the heating water channel 24 is provided. In addition, the thing of the same code | symbol as Embodiment 1 has the same structure, and abbreviate | omits description.

  In the figure, a water flow portion 34 of a heat sensitive plate 28 having substantially the same plane as a water flow surface 33 of a meandering heating water channel 24 through which washing water provided in a case 23 circulates, and a substantially extended line of a partition wall 35 of the heating water channel 24 are formed. Since the partition wall projections 36 of the heat sensitive plate 28 are formed, the flowing water flows smoothly through the case 23.

  By configuring as described above, disturbance of the water flow is suppressed and water flows stably, and even if the heat sensitive plate 28 is provided in a part of the heating water channel 24, temperature fluctuation can be prevented.

(Embodiment 3)
FIG. 6 shows the instantaneous heating means of the toilet apparatus according to Embodiment 3 of the present invention.

  In the present embodiment, the difference from the configurations of the first and second embodiments is that the heat sensitive plate 28 makes the partition convex portions 36 contact the heater 4. In addition, the thing of the same code | symbol as Embodiment 1, 2 has the same structure, and abbreviate | omits description.

  In the figure, when the heater 4 is abnormally heated, the heat is directly transmitted to the partition convex portion 36 of the heat sensitive plate 28, and the heat is instantaneously transmitted from the heat sensitive plate 28 to the safety device (temperature fuse) 26.

  As described above, in the present embodiment, the heat of the heater 4 is directly transmitted to the thermal plate 28, so that the heat conduction time from the heater 4 to the thermal plate 28 is shortened, and the heater 4 is a safety device when abnormal heating occurs. The sensing time for the (thermal fuse) 26 can be shortened.

(Embodiment 4)
FIG. 7 shows the instantaneous heating means of the toilet apparatus according to Embodiment 4 of the present invention.

  In the present embodiment, the difference from the configurations of the first to third embodiments is that the case 23 is provided with a rib 37 in contact with the heater 4 on the side opposite to the heat sensitive plate 28. In addition, the thing of the same code | symbol as Embodiment 1-3 has the same structure, and abbreviate | omits description.

  In the figure, the heater 4 is sandwiched and fixed between the partition wall projections 36 of the heat sensitive plate 28 and the ribs 37 of the case 23.

  As described above, in the present embodiment, by suppressing the inclination of the heater 4, the configuration of the heating water channel 24 can be stabilized, and water can flow smoothly by making an arbitrary cross section of the heating water channel 24 uniform. Can be.

(Embodiment 5)
FIG. 8 shows the instantaneous heating means of the toilet apparatus according to Embodiment 5 of the present invention.

  In the present embodiment, the difference from the configurations of the first to fourth embodiments is that the heater 4 crushes the ribs 37 of the case 23 when the heat sensitive plate 28 is fixed to the case 23. In addition, the thing of the same code | symbol as Embodiment 1-4 has the same structure, and abbreviate | omits description.

  In the figure, the heater 4 is sandwiched in a state where it is pressed from both the partition wall projections 36 of the heat sensitive plate 28 and the ribs 37 of the case 23.

  As described above, in the present embodiment, the thermal plate 28 is reliably brought into contact with the heater 4, so that the gap between the heater 4 and the thermal plate 28 is eliminated, the inclination of the heater 4 is suppressed, and the thermal plate 28. Thus, the heat of the heater 4 can be reliably transmitted.

  As described above, the toilet apparatus according to the present invention is useful as a sanitary washing apparatus because the instantaneous heating means can instantaneously turn off the power supply during abnormal heating so that hot water is not discharged. .

Structure diagram of instantaneous heating means of toilet device in Embodiment 1 of the present invention Control circuit diagram of the toilet device Structure diagram of instantaneous heating means of the toilet device Overall waterway configuration diagram of the toilet device Structural drawing of instantaneous heating means of toilet device in Embodiment 2 of the present invention Sectional drawing of the instantaneous heating means of the toilet apparatus in Embodiment 3 of this invention Sectional drawing of the instantaneous heating means of the toilet apparatus in Embodiment 4 of this invention Sectional drawing of the instantaneous heating means of the toilet apparatus in Embodiment 5 of this invention Structure diagram of instantaneous heating means of conventional toilet equipment

4 Heater 21 Instantaneous Heating Means 22 Water Supply Means 23 Case 24 Heating Water Channel 26 Safety Device 27 Nozzle Means 28 Heat Sensitive Plate 33 Flowing Surface 34 Flowing Portion 35 Bulkhead 36 Bulkhead Protrusion 37 Rib

Claims (2)

Nozzle means for jetting wash water locally;
Water supply means for supplying cleaning water toward the nozzle means;
Having instantaneous heating means for instantaneously heating water supplied to the nozzle means to warm water;
The instantaneous heating means includes a flat heater,
A case covering the flat heater;
A partition wall provided on the inner surface of the case;
A meandering heating channel formed by the partition;
And the heat sensitive plate having a thermal conductivity effects that forms part of the heating water channel,
A safety device in contact with the heat sensitive plate ;
With
The heat sensitive plate has a partition convex portion formed in a convex shape so as to form a part of the formation of the heating water channel meandering with the partition formed in the case,
A toilet apparatus having a configuration in which the partition convex portion is in contact with the heater . The instantaneous heating means has a rib for fixing the heater on the inner surface of the case, and the heater is sandwiched and fixed in contact with the partition convex portion of the heat sensitive plate and the rib of the case. The toilet device according to claim 1.

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