JP2005146552A - Toilet device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a toilet device improving sensitivity in abnormal heating by setting an OFF setting temperature in abnormal heating low. <P>SOLUTION: This toilet device is constituted to lower the atmosphere temperature of a temperature detecting part 29 during non-use. A temperature change can thereby be coped with, and the OFF setting temperature of a safety device (a temperature fuse) 26 and a thermo-switch 25 in abnormal heating is set low to improve sensitivity in abnormal heating. <P>COPYRIGHT: (C)2005,JPO&NCIPI

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. 8 (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 this heating tank 6 goes through the inner channel 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, the lower opening b of the through hole 9 is blocked by the baffle plate 10 that protrudes horizontally in the heating tank 6 so that the area of the low-temperature water is horizontal along the baffle plate 10. It moves to (the front end side of the heating tank 6) and mixes in contact with the hot water heated by the heater 4 on the front side of the lower opening b of the through hole 9 and flowing to the through hole 9 side. 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 hot 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 hot water storage section 7 with the bimetal switch 12 for preventing heating is disposed above the heating tank 6 with the heater 4 built-in. Therefore, it is necessary to always use the bimetal switch 12 in an atmosphere higher than the temperature at the time of heat retention, and there is a problem that the OFF set temperature of the bimetal switch 12 must be set high.

  This invention solves the said conventional subject, and it aims at providing the toilet apparatus which sets the OFF preset temperature at the time of abnormal heating low, and improves the sensitivity at the time of abnormal heating.

  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. An instantaneous heating means for instantaneously heating to warm water is provided, and a heating part and a temperature detection part built in the instantaneous heating means are arranged on substantially the same plane and are integrally configured.

  Thereby, the OFF set temperature at the time of abnormal heating can be set low, and the sensitivity at the time of abnormal heating can be improved.

  The toilet apparatus of the present invention can set the OFF set temperature during abnormal heating to a low value, and can improve the sensitivity during abnormal heating.

  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 And the temperature of the ambient temperature of the temperature detection unit when not in use is obtained by arranging the heating unit incorporated in the instantaneous heating means and the temperature detection unit on substantially the same plane to form an integral unit. The temperature can be lowered, the OFF set temperature during abnormal heating can be set low, and the sensitivity during abnormal heating can be improved.

  In the second invention, in particular, the temperature detection unit in the first invention is arranged in the vicinity of the heating unit, and when the heating unit transmits the high temperature water immediately to the temperature detection unit during abnormal heating, the temperature of the high temperature water is increased. Heat can be transmitted to the temperature detection unit without reducing the temperature, and the sensing time during abnormal heating can be shortened.

  In the third invention, in particular, the instantaneous heating means in the first or second invention is such that the heater is covered with a case, and the parts of the heating part and the temperature detection part are mounted on the same surface side of the case. Thus, by projecting the parts only on the same surface, it is possible to mount the instantaneous heating means in the main body without loss and to improve the assemblability because the parts are assembled from one direction.

  In the fourth aspect of the invention, in particular, the temperature detection unit in any one of the first to third aspects of the invention detects a water inlet sensor that detects the temperature on the primary side of the heating unit and the temperature on the secondary side of the heating unit. By mounting at least one of the temperature sensors, the accuracy of temperature control of the heating unit can be improved by bringing the water inlet sensor and the temperature sensor close to the heating unit.

  In the fifth aspect of the invention, in particular, the water channel structure to the temperature sensing part of the protector mounted on the temperature detection part in any one of the first to fourth inventions enters from below the temperature sensing part, The water is discharged from above, and the reaction can be performed without deteriorating the sensitivity of the protector by avoiding the occurrence of air accumulation in the temperature sensing part.

  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 3 show a toilet apparatus according to Embodiment 1 of the present invention.

  1 and 2, 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. The outlet of the water pump 19 is connected to the inlet 21a of the instantaneous heating means 21 through the flow rate sensor 20, and the pump motor 18 is driven and controlled by the flow rate detected by the flow rate sensor 20, so that the washing water at a constant flow rate can be instantaneously supplied with high accuracy. It is comprised so that it may feed to the type | formula heating means 21. FIG. A water supply means 22 is constituted by the flow rate sensor 20 from the check valve 13.

  The instantaneous heating means 21 is provided with a meandering heating water passage 24 through which cleaning water flows in a case 23, and a flat ceramic heater 4 is disposed facing the heating water passage 24. An outlet 21b is provided at the outlet 21b. 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 21 b of the instantaneous heating means 21 is jetted locally by the nozzle means 27.

  Next, the detailed configuration of the instantaneous heating means 21 will be described. The instantaneous heating means 21 is configured integrally with a heating unit 28 having a heating water channel 24 and a temperature detection unit 29 having a temperature sensor 11 and a thermo switch 25 arranged on substantially the same plane.

  Next, the safety control configuration will be described with reference to FIG. A triac 31, a water shutoff solenoid valve 16, a safety device (temperature fuse) 26, and a thermoswitch 25 that are linked to the power supply 30 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 detection means 32 for detecting the voltage across the water stop solenoid valve 16 is provided, and the transistor 33 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 the hot water ejection switch is turned on, the water stop solenoid valve 16 is opened and the water pump 19 is operated to supply cleaning water to the instantaneous heating means 21, and the instantaneous heating means 21 sets the temperature detected by the temperature sensor 11. Accordingly, the washing water is heated to a predetermined temperature by the heater 4 that is energized and is ejected from the nozzle means 27 to the local portion. 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, by reducing the ambient temperature of the temperature detection unit 29 when not in use, it is possible to cope with temperature changes, and the safety device (temperature fuse) 26 during abnormal heating The OFF set temperature of the thermo switch 25 can be set low, and the sensitivity during abnormal heating can be improved.

(Embodiment 2)
FIG. 4 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 temperature detection unit 29 is arranged in the vicinity of the heating unit 28. In addition, the thing of the same code | symbol as Embodiment 1 has the same structure, and abbreviate | omits description.

  As shown in the figure, hot water flows instantaneously from a heating unit 28 having a meandering heating water passage 24 through which water provided in the case 23 flows to a temperature detection unit 29 having a temperature sensor 11 and a thermo switch 25. ing.

  By configuring as described above, the heating unit 28 immediately transmits the high temperature water to the temperature detection unit 29 at the time of abnormal heating, thereby transferring the heat to the temperature detection unit 29 without reducing the temperature of the high temperature water, thereby causing abnormal heating. Time sensing time can be shortened.

(Embodiment 3)
FIG. 5 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 instantaneous heating means 21 covers the heater 4 with a case 23, and a heating unit 28 and a temperature detection unit 29 are provided on the same surface side of the case 23. It is the place where it was made to mount the part of. In addition, the thing of the same code | symbol as Embodiment 1, 2 has the same structure, and abbreviate | omits description.

  Since the components of the heating unit 28 and the temperature detection unit 29 are assembled on the same surface of the case 23 of the instantaneous heating means 21, the components protrude only on the same surface, so that the instantaneous heating is performed in the main body without loss. Since the means 21 can be mounted and assembled from the same surface, the assemblability can be improved.

(Embodiment 4)
FIG. 6 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 temperature detecting unit 29 detects the temperature on the primary side of the heating unit 28 and the temperature on the secondary side of the heating unit 28. At least one of the temperature sensors 11 for detecting the above is mounted. In addition, the thing of the same code | symbol as Embodiment 1-3 has the same structure, and abbreviate | omits description.

  As described above, the water inlet sensor 34 and the temperature sensor 11 are fixed to the case 23 without any other components in the vicinity of the heating unit 28, and the water inlet sensor 34 and the temperature sensor 11 are brought closer to the heating unit 28. As a result, the water temperatures on the primary side and the secondary side of the heating unit 28 can be accurately detected, and the temperature control accuracy of the heating unit 28 can be improved.

  In the present embodiment, the water sensor 34 and the temperature sensor 11 are mounted on the case 23, but only the water sensor 34 or the temperature sensor 11 may be mounted on the case 23.

(Embodiment 5)
FIG. 7 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 water channel configuration to the temperature sensing unit 36 of the protector 35 mounted on the temperature detection unit 29 is inflow from the lower side of the temperature sensing unit. However, it has just started to drain from above. In addition, the thing of the same code | symbol as Embodiment 1-4 has the same structure, and abbreviate | omits description.

  As described above, the flow of water in the temperature sensing unit 36 of the protector 35 is from the bottom to the top, and by avoiding the occurrence of air accumulation in the temperature sensing unit 36, the sensitivity of the protector 35 is increased. It can be made to react without lowering.

  As described above, the toilet apparatus according to the present invention is useful as a sanitary washing apparatus because the OFF set temperature during abnormal heating can be set low and the sensitivity during abnormal heating can be improved.

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

Explanation of symbols

DESCRIPTION OF SYMBOLS 4 Heater 11 Temperature sensor 21 Instantaneous heating means 22 Water supply means 23 Case 27 Nozzle means 28 Heating part 29 Temperature detection part 34 Water inlet sensor 35 Protector 36 Temperature sensing part

Claims (5)

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 the water supplied to the nozzle means to warm water. Toilet device in which a heating unit and a temperature detection unit built in a heating means are arranged on substantially the same plane and are integrated. The toilet device according to claim 1, wherein the temperature detection unit is disposed in the vicinity of the heating unit. The toilet apparatus according to claim 1 or 2, wherein the instantaneous heating means covers the heater with a case and mounts a heating part and a temperature detection part on the same surface side of the case. The temperature detection unit according to any one of claims 1 to 3, wherein at least one of a water inlet sensor that detects a temperature on a primary side of the heating unit and a temperature sensor that detects a temperature on a secondary side of the heating unit is mounted. Toilet equipment. The water channel structure to the temperature sensing part of the protector mounted on the temperature detection part enters from the lower direction of the temperature sensing part, and discharges water from the upper direction. Toilet equipment.

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