WO2005015092A1 - 流体加熱装置およびそれを用いた洗浄装置 - Google Patents
流体加熱装置およびそれを用いた洗浄装置 Download PDFInfo
- Publication number
- WO2005015092A1 WO2005015092A1 PCT/JP2004/011417 JP2004011417W WO2005015092A1 WO 2005015092 A1 WO2005015092 A1 WO 2005015092A1 JP 2004011417 W JP2004011417 W JP 2004011417W WO 2005015092 A1 WO2005015092 A1 WO 2005015092A1
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- WO
- WIPO (PCT)
- Prior art keywords
- fluid
- heating device
- fluid heating
- case body
- washing
- Prior art date
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H1/00—Water heaters, e.g. boilers, continuous-flow heaters or water-storage heaters
- F24H1/10—Continuous-flow heaters, i.e. heaters in which heat is generated only while the water is flowing, e.g. with direct contact of the water with the heating medium
- F24H1/101—Continuous-flow heaters, i.e. heaters in which heat is generated only while the water is flowing, e.g. with direct contact of the water with the heating medium using electric energy supply
- F24H1/102—Continuous-flow heaters, i.e. heaters in which heat is generated only while the water is flowing, e.g. with direct contact of the water with the heating medium using electric energy supply with resistance
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- D06F39/00—Details of washing machines not specific to a single type of machines covered by groups D06F9/00 - D06F27/00
- D06F39/04—Heating arrangements
-
- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03D—WATER-CLOSETS OR URINALS WITH FLUSHING DEVICES; FLUSHING VALVES THEREFOR
- E03D9/00—Sanitary or other accessories for lavatories ; Devices for cleaning or disinfecting the toilet room or the toilet bowl; Devices for eliminating smells
- E03D9/08—Devices in the bowl producing upwardly-directed sprays; Modifications of the bowl for use with such devices ; Bidets; Combinations of bowls with urinals or bidets; Hot-air or other devices mounted in or on the bowl, urinal or bidet for cleaning or disinfecting
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H9/00—Details
- F24H9/0005—Details for water heaters
- F24H9/001—Guiding means
- F24H9/0015—Guiding means in water channels
- F24H9/0021—Sleeves surrounding heating elements or heating pipes, e.g. pipes filled with heat transfer fluid, for guiding heated liquid
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H9/00—Details
- F24H9/18—Arrangement or mounting of grates or heating means
- F24H9/1809—Arrangement or mounting of grates or heating means for water heaters
- F24H9/1818—Arrangement or mounting of electric heating means
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H9/00—Details
- F24H9/20—Arrangement or mounting of control or safety devices
- F24H9/2007—Arrangement or mounting of control or safety devices for water heaters
- F24H9/2014—Arrangement or mounting of control or safety devices for water heaters using electrical energy supply
- F24H9/2028—Continuous-flow heaters
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B3/00—Ohmic-resistance heating
- H05B3/40—Heating elements having the shape of rods or tubes
- H05B3/42—Heating elements having the shape of rods or tubes non-flexible
- H05B3/46—Heating elements having the shape of rods or tubes non-flexible heating conductor mounted on insulating base
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H2250/00—Electrical heat generating means
- F24H2250/02—Resistances
Definitions
- the present invention relates to a fluid heating device for heating a fluid and a cleaning device using the fluid heating device.
- a sanitary washing device for washing a local part of a human body is provided with a heating device for heating washing water used for washing to an appropriate temperature so as not to cause discomfort to the human body.
- Sanitary washing devices equipped with such a heating device mainly include hot water storage type sanitary washing devices or instantaneous heating type sanitary washing devices.
- the hot water storage type sanitary washing device is equipped with a built-in hot water tank that stores a predetermined amount of washing water in advance and heats the washing water to a fixed temperature in the evening (Japanese Patent Laid-Open No. 2003-106_6669).
- a method is used in which cleaning water heated to a predetermined temperature in a hot water tank is pumped out from a nozzle by tap water or a pump or the like.
- FIG. 39 is a schematic sectional view of a hot water tank unit of a conventional hot water storage type sanitary washing device.
- the hot water tank unit of the hot water storage type sanitary washing device is described in Japanese Patent Application Laid-Open No. 2002-3222713.
- the thermistor 904 detects the temperature of the washing water in the hot water tank 901 via the heat sensitive plate 903.
- the control circuit 905 gives a heating instruction to the hot water heater 902 provided in the hot water tank 901 based on the temperature detected by the thermistor 904.
- the washing water previously stored in the hot water tank 901 can be heated and stored.
- the temperature of the washing water can be transmitted to the heater 904 regardless of the attitude of the hot water tank. Can be so warm It is possible to prevent empty firing of the water tank.
- the washing water in the hot water dunk must be maintained at a predetermined temperature before washing the local part of the human body. Therefore, the power consumption is increased because it is necessary to always supply power to the heating device.
- the temperature of the wash water in the hot water tank drops below the predetermined temperature. Doing so will cause discomfort to the human body.
- the instantaneous heating type sanitary washing device is designed to heat the washing water to a specified temperature instantaneously with a heating device with an excellent heating rate when cleaning a local part of the human body and use tap water pressure, or use a pump or other means. And ejecting it from the nozzle. Therefore, power consumption is small because it is not necessary to constantly supply power to the heating device.
- the temperature of the washing water in the hot water tank becomes lower than the predetermined temperature. Does not lower and does not cause discomfort to the human body. '
- FIG. 40 is a schematic diagram of a heating device having both the configuration of the conventional hot water storage type sanitary washing device and the configuration of the instantaneous heating device.
- washing water is stored in hot water storage tank 982 from inlet 980.
- a communication pipe 983 is provided in the hot water storage tank 980, and the washing water flows through the communication pipe 983 to a heating chamber 988 provided in the hot water storage tank 980.
- a cylindrical heater 986 is provided in the heating chamber 984, and the washing water flows to the washing nozzle 987 while being heated by the cylindrical heater 986. As a result, warm water is jetted from the cleaning nozzle 987.
- the heating chamber 984 is provided in the hot water storage tank 980, the washing water in the hot water storage tank 980 is heated to a predetermined temperature in advance. Then, the washing water is heated again by the heater 986 before the washing water is jetted from the washing nozzle 987. As a result, it is possible to reduce power consumption and to wash Can squirt water.
- a ceramic heater is generally used as a heating device of the sanitary washing device. This ceramic heater is described in Japanese Patent Application Laid-Open No. H10-160249.
- FIG. 41 is a perspective view showing an example of a conventional ceramic heater.
- a ceramic heater 952 is provided so as to divide the inside of the tank 954 into two parts.
- a meandering flow path is formed along the ceramic heater 952.
- FIG. 42 is a schematic sectional view of a conventional heating device.
- this heating device has a double-pipe structure composed of a tubular base material pipe 961 and an outer cylinder 962.
- a heater 963 is provided outside the base material pipe 961.
- a spiral core 965 is inserted into the base material pipe 961. The washing water is heated by the heater 963 while flowing between the spiral core 965 and the base material pipe 961. As a result, it is possible to supply the cleaning water appropriately heated by the small heating device.
- washing clothes have also been used for washing clothes in hot tubs. And has been done.
- two water supply valves are provided, one of which is connected to a tap as a hot water supply valve, and the other is connected to a water heater as a hot water supply valve.
- the hot water temperature fluctuates greatly depending on the capacity of the water heater and the temperature of the tap water, or the temperature of the hot water during hot water supply is not stable. As a result, clothing can be damaged by heat if the water pressure is too low and the temperature is too high.
- FIG. 43 is a schematic cross-sectional view of a conventional clothing washing apparatus.
- this clothing washing device has a tap water supply valve 984 that supplies washing water from the water tap into the washing tub 981, and washing water from the water heater into the washing tub 981.
- a hot water supply valve 985 for hot water supply is provided.
- the clothes washing device is provided with a temperature sensor 983 for detecting the water temperature in the washing tub 981, and adjusts the water temperature in the washing tub 981 at the lower part of the washing tub 981. 9/22 is set up.
- the hot water in the washing tub 981 when the temperature of the hot water in the washing tub 981 is lower than the desired temperature, the hot water can be adjusted by the heater 982 or hot water can be supplied from the hot water supply valve 985.
- the temperature of the hot water in the washing tub 981 is higher than the desired temperature, water can be supplied from the water supply valve 984.
- the water temperature in the washing tub 981 can be set to a predetermined temperature.
- An object of the present invention is to provide a fluid heating device that is small and has high heat exchange efficiency.
- a fluid heating device includes a case body, and a heat generator housed in the case body, wherein a flow path is formed between an outer surface of the heat generator and an inner surface of the case body.
- the apparatus further includes a turbulence generation mechanism that generates turbulence at least in part.
- the fluid is heated by flowing the fluid through a flow path formed between the outer surface of the heating element and the inner surface of the case body.
- the turbulence is generated by the turbulence generation mechanism in at least a part of the flow path, and the fluid is stirred.
- the fluid flows on the outer surface of the heating element, all the heat released from the heating element can be supplied to the fluid. Therefore, heat from the heating element can be efficiently supplied to the fluid. As a result, a fluid heating device that can be downsized and has high heat exchange efficiency can be realized.
- the turbulence generation mechanism may be provided in a partially waiting state in which the velocity of the fluid flowing in the flow channel decreases.
- the fluid can be brought into a turbulent state in a portion where the velocity of the fluid decreases.
- the adhesion of scale and the like generated on the surface of the heating element can be reduced, and the life of the fluid heating device can be extended.
- the turbulence generation mechanism may be provided downstream of the flow path.
- the fluid can be in a turbulent state on the downstream side where the velocity of the fluid tends to decrease. Further, since no turbulence generation mechanism is provided in a portion other than the downstream side of the flow path, pressure loss in the flow path can be prevented.
- the turbulence generation mechanism may be provided intermittently in the flow path. In this case, since the turbulence generation mechanism is provided intermittently, it is possible to prevent pressure loss in the flow path as compared with the case where the turbulence generation mechanism is provided as a whole.
- the turbulence generation mechanism may be provided on the upstream side of the flow path. In this case, since the turbulence generation mechanism is provided on the upstream side of the flow path, pressure loss in the flow path can be prevented as compared with the case where the turbulence generation mechanism is provided entirely.
- the heating element may have a rod shape with a circular or elliptical cross section. Place In this case, since the fluid smoothly flows on the outer surface of the heating element, pressure loss can be reduced. Further, the turbulence generating mechanism, which facilitates the manufacture of the fluid heating device because the structure of the heating element is simple, may include a spiral member wound along the outer peripheral surface of the heating element. In this case, the fluid forms a spiral flow along the outer peripheral surface of the heating element by the spiral member.
- the flow distance of the fluid becomes longer, so that the velocity of the fluid increases. Therefore, it is possible to efficiently absorb the heat generated from the heating element while maintaining the turbulent state of the fluid. Further, since the fluid is in a turbulent state, it is possible to reduce the adhesion of scale and the like generated on the surface of the heating element, and to prolong the life of the fluid heating device.
- the helical member may consist of a helical spring.
- the helical spring having the elastic force vibrates.
- adhesion of scale and the like generated on the surface of the heating element can be reduced, and the life of the fluid heating device can be extended.
- a fluid heating device can be manufactured by inserting a heating element into a spiral spring and covering the heating element with a case body. Therefore, the production of the fluid heating device is facilitated, and the production cost can be reduced.
- the case body may have a cylindrical fluid inlet and a cylindrical fluid outlet provided in parallel with the winding direction of the spiral member.
- the cylindrical fluid inlet and the cylindrical fluid outlet are provided in a direction parallel to the winding direction of the spiral member, the fluid smoothly flows from the cylindrical fluid inlet into the flow channel and smoothly flows from the flow channel. Since the fluid flows out to the cylindrical fluid outlet, pressure loss of the fluid can be prevented.
- the case body has a fluid inlet and a fluid outlet, and at least one of the fluid inlet and the fluid outlet receives fluid in a direction along the outer peripheral surface of the heating element or from a direction along the outer peripheral surface of the heating element. It may be provided at a position eccentric from the central axis of the heating element so that the fluid flows out.
- the fluid flowing from the fluid inlet flows spirally along the outer peripheral surface of the heating element, or the spirally flowing fluid flows from the direction along the outer peripheral surface of the heating element to the fluid outlet. It is. As a result, pressure loss of the fluid can be prevented. Furthermore, since the spiral flow of the fluid can be formed, the fluid can efficiently absorb the heat generated from the heating element. .
- the heating element may have a maximum heating value of about 1.5 kW or more and about 2.5 kW or less.
- the incoming water temperature of the fluid in summer, middle and winter can be raised to a predetermined temperature (approximately 40 ° C).
- the heating element may have a performance in which the maximum gradient of the temperature rise rate of the fluid is about 10 K or more per second.
- the temperature of the fluid can be increased in a short time. Therefore, no overshoot and undershoot appear in the temperature control response of the fluid. Also, since the heat response of the heating element is fast, it is suitable for stable heating of washing water with a fluctuation range of about 1 ° C. As a result, the temperature of the washing water desired by the user can be quickly controlled.
- the heating element may include a shower.
- a heating element that is inexpensive or hard to break can be manufactured.
- Shizuhisa may have a maximum pet density of approximately 3 OW / cm 2 or more and 5 OW / cm 2 or less.
- the temperature of the fluid can be increased in a short time. Therefore, no overshoot and no undershoot appear in the temperature control response of the fluid.
- the thermal response of the heating element is fast, it is suitable for stable heating of washing water with a fluctuation range of about 1 ° C. As a result, the temperature of the washing water desired by the user can be quickly controlled.
- the heating element may include a ceramic heater. In this case, since the heat capacity is small, it is not necessary to increase the watt density, and the life can be prolonged.
- the apparatus may further include a temperature detector that detects the temperature of the heating element, and a control device that controls power supply to the heating element based on the temperature detected by the temperature detector.
- the temperature of the heating element can be set to a predetermined temperature by the control device, it is possible to adjust the temperature of the fluid that absorbs heat from the heating element to the predetermined temperature and supply a fluid having a stable temperature. it can.
- a heat sensitive plate provided in contact with the heating element and having a portion protruding outside the case body. The temperature detector is provided outside the case body and detects the temperature of the heating element via the heat sensing plate. May be. .
- the temperature detector can be easily attached via the heat-sensitive plate.
- the heating element has a heating section and a non-heating section, and the heat-sensitive plate may be provided so as to be in contact with the non-heating section of the heating element.
- the heat generated from the heat generating part is also transmitted to the non-heat generating part.
- the temperature of the heating part can be estimated from the temperature detected by the temperature detector.
- the heat sensitive plate is not directly attached to the heat generating portion, it is possible to prevent the temperature of the heat sensitive plate from excessively rising or fluctuating.
- the case body may have a fluid inlet and a fluid outlet, and the heat sensitive plate may be provided so as to be in contact with the heating element near the fluid outlet of the case body.
- the heat sensitive plate so as to be in contact with the heating element in the vicinity of the fluid outlet, the temperature change of the heat sensitive plate appears more remarkably, and the temperature of the fluid flowing out of the fluid heating device can be accurately estimated.
- the heat sensitive plate may be joined to the heating element. In this case, it is possible to prevent rattling of the lock between the heat-sensitive plate and the heating element. As a result, an accurate temperature can be detected by the temperature detector.
- the heat sensitive plate may be brazed to the heating element.
- the backlash between the heat-sensitive plate and the heating element can be prevented by brazing.
- a more accurate temperature can be detected by the temperature detector.
- the heat sensitive plate may have a leakage preventing function for preventing leakage of the fluid in the case body.
- the heat-sensitive plate since the heat-sensitive plate also functions as a leak prevention means, the manufacturing cost can be reduced and the assemblability can be improved.
- the heat sensitive plate may be made of metal.
- the heat-sensitive plate made of metal has high thermal conductivity, the temperature of the heating element can be quickly and accurately transmitted to the temperature detector.
- the heat-sensitive plate may be made of a copper plate.
- copper has a particularly good thermal conductivity and corrosion resistance that can be used for a long time, so that the temperature of the heating element can be measured quickly and accurately over a long period of time. You can tell the alarm.
- the heat sensitive plate may be formed in a substantially L shape. In this case, since a portion largely protruding from the outer shape of the fluid heating device is not formed, the size of the fluid heating device can be reduced.
- the fluid heating device is provided in contact with the fluid in the flow path and has a heat transfer member having a portion protruding outside the case body; and a heat transfer member protruding outside the case body, and is provided on a portion of the heat transfer member protruding outside the case body. May be further provided.
- the case body may have a fluid inlet and a fluid outlet, and the heat transfer member may be provided so as to be in contact with the fluid near the fluid inlet of the case body.
- the heat transfer member comes into contact with the fluid before being heated by the heating element near the fluid inlet, the water cooling effect of the electronic component can be further ensured via the heat transfer member. Also, the temperature of the fluid can be raised near the fluid inlet.
- the heat transfer member may have a leakage prevention function for preventing leakage of the fluid in the casing.
- the heat transfer member since the heat transfer member also functions as the leakage prevention means, the manufacturing cost can be reduced and the assemblability can be reduced. Can be improved.
- the heat transfer member may be made of metal. In this case, since the heat transfer member made of metal has high thermal conductivity, the temperature of the heating element can be quickly and accurately transmitted to the temperature detector.
- the heat transfer member may be made of a copper plate. In this case, since copper has particularly excellent thermal conductivity and long-term corrosion resistance, the temperature of the heating element can be quickly and accurately transmitted to the temperature detector over a long period of time.
- the heat transfer member may be formed in a substantially L shape. In this case, since a portion largely protruding from the outer shape of the fluid heating device is not formed, the size of the fluid heating device can be reduced.
- the case body includes a plurality of case body portions
- the heating element includes a plurality of heating body portions respectively housed in the plurality of case body portions, and includes an inner surface of each case body portion and each heating body portion.
- a flow path is formed between each of the plurality of flow paths and the outer surface. May further include a plurality of turbulence generation mechanism portions that generate turbulence in at least a part of the turbulence generation mechanism.
- the maximum heating amount of the fluid heating device can be increased.
- a flow rate at a predetermined temperature can be secured according to the user's preference or use environment.
- Each of the plurality of case body portions has a fluid inlet and a fluid outlet, and the fluid outlet of one case body portion may be formed so as to be able to fit with the fluid inlet of another case body portion. Since the fluid outlet of this case body portion and the fluid inlet of another case body portion can be fitted together, a plurality of case body portions can be connected without using a new member.
- Each of the plurality of case body portions has a fluid inlet and a fluid outlet, and may further include a connecting member that connects the fluid outlet of one case body portion and the fluid inlet of another case body portion.
- the fluid flowing out of the fluid outlet of one case body part can be supplied to the fluid inlet of the other case body part by the connecting part.
- a plurality of case body portions can be connected.
- the plurality of case body portions may have the same shape. In this case, the manufacturing cost can be reduced.
- a cleaning device is a cleaning device that jets a fluid supplied from a water supply source to a portion to be cleaned of a human body, and heats the fluid while flowing the fluid supplied from the water supply source.
- a fluid ejection device for ejecting the fluid heated by the fluid heating device to the human body the fluid heating device includes a case body, and a heating element housed in the case body, and an outer surface of the heating element and the case.
- a flow path is formed between the inner surface of the body and a turbulence generation mechanism that generates turbulence in at least a part of the flow path.
- the cleaning water heated by the fluid heating device can be ejected from the ejection device to the human body.
- the fluid is heated by flowing the fluid through a flow path formed between the outer surface of the heating element and the inner surface of the case body.
- the flow path The fluid is agitated by the turbulence generated by the turbulence generation mechanism at least in part.
- the fluid flows on the outer surface of the heating element, all the heat released from the heating element can be supplied to the fluid. Therefore, heat from the heating element can be efficiently supplied to the fluid. As a result, it is possible to realize a cleaning device using a fluid heating device that can be downsized and has high heat exchange efficiency. As a result, it is possible to squirt washing water at a comfortable temperature to the human body.
- a cleaning device is a cleaning device for cleaning clothes using a fluid supplied from a water supply source, and heats the washing tub and the fluid supplied from the water supply source while moving the fluid.
- the fluid heating device includes a case body, and a heating element housed in the case body.
- a flow path is formed between the outer surface of the case and the inner surface of the case body, and a turbulence generating mechanism for generating a turbulent flow in at least a part of the flow path is further provided.
- the fluid heated by the fluid heating device is supplied into the washing tub to perform washing.
- the fluid is heated by flowing the fluid through a flow path formed between the outer surface of the heating element and the inner surface of the case body.
- the turbulence is generated by the turbulence generation mechanism in at least a part of the flow path, and the fluid is stirred. Further, since the fluid flows on the outer surface of the heating element, all the heat released from the heating element can be supplied to the fluid. Therefore, heat from the heating element can be efficiently supplied to the fluid.
- a fluid can be heated by the fluid heating apparatus which is small and has high heat exchange efficiency, and it can utilize for the washing
- FIG. 1 is a perspective view showing a state in which the sanitary washing device according to the first embodiment is mounted on a toilet.
- FIG. 2 is a schematic diagram illustrating an example of the remote operation device in FIG.
- FIG. 3 is a schematic diagram illustrating a configuration of a main body of the sanitary washing device according to the first embodiment.
- FIG. 4 is a schematic sectional view for explaining the internal structure of the fluid heating device.
- FIG. 5 is a schematic cross-sectional view showing the internal structure of the season heater.
- FIG. 6 is a cross-sectional view showing the internal structure of the sheathed heater of the fluid heating device of FIG.
- FIG. 7 is a cross-sectional view of the fluid heating device shown in FIG.
- FIG. 8 is a velocity distribution diagram of the washing water flowing in the flow channel.
- FIG. 9 is a distribution diagram of the flow velocity of the washing water flowing in the flow channel.
- FIG. 10 is a sectional view showing another example of the fluid heating device. '
- FIG. 11 is a cross-sectional view showing still another example of the fluid processing apparatus.
- FIG. 12 is a cross-sectional view showing a state in which the sanitary washing device of FIG. 1 attached to a toilet bowl is used on a human body.
- FIG. 13 is a schematic diagram illustrating an example of a remote control device of the sanitary washing device according to the second embodiment.
- FIG. 14 is a diagram showing a configuration of a main body of the sanitary washing device according to the second embodiment.
- FIG. 15 is a schematic perspective view showing the configuration of the fluid heating unit.
- FIG. 16 is a schematic sectional view showing an example of the fluid heating device of the fluid heating unit of FIG.
- FIG. 17 is a schematic diagram for explaining an arrangement method of the fluid heating device.
- FIG. 18 is a schematic plan view showing another example of the fluid heating unit.
- FIG. 19 is a schematic plan view showing still another example of the fluid heating unit.
- FIG. 20 is a schematic sectional view showing an example of a fluid heating device used in the fluid heating unit of FIG.
- FIG. 21 is a schematic sectional view showing still another example of the fluid heating device.
- FIG. 22 is a plan view showing an example of the structure of the fluid heating device according to the third embodiment. .
- FIG. 23 is a diagram for explaining the internal structure of the fluid heating device shown in FIG.
- FIG. 24 is a diagram illustrating heating characteristics of the fluid heating device according to the third embodiment.
- FIG. 25 is a characteristic diagram showing the temperature rise of the cleaning water of the fluid heating device according to the third embodiment.
- FIG. 26 is a characteristic diagram illustrating a temperature control response of the cleaning water of the fluid heating device according to the third embodiment.
- FIG. 27 is a schematic sectional view showing a fluid heating device according to the fourth embodiment.
- FIG. 28 is a schematic sectional view showing another example of the fluid heating device.
- FIG. 29 is a schematic sectional view showing still another example of the fluid heating device.
- FIG. 30 is a side view of the fluid heating device of FIG.
- FIG. 31 is a schematic plan view showing a fluid heating device according to the fourth embodiment.
- FIG. 32 is a schematic longitudinal sectional view showing an example of a clothes washing device using the fluid heating device according to the embodiment of the present invention.
- FIG. 33 is a schematic cross-sectional view of the clothes cleaning apparatus shown in FIG.
- FIG. 34 is a diagram showing a path of the washing water when the washing water supplied from the water supply port is heated by the fluid heating device and supplied to the washing tub.
- FIG. 35 is a diagram showing a path of the washing water when the washing water once supplied into the washing tub is heated and supplied into the washing tub.
- Fig. 36 is a diagram showing the path of washing water when hot water with detergent is supplied to the washing tub.
- Fig. 37 is a diagram showing the path of washing water when supplying purified water to the washing tub in the clothes washing device.
- FIG. 38 is a schematic sectional view showing another example of the fluid heating device used in the clothes washing device.
- FIG. 39 is a schematic sectional view of a hot water tank unit of a conventional hot water storage type sanitary washing device.
- FIG. 40 is a schematic diagram of a heating device having both the configuration of the conventional hot water storage type sanitary washing device and the configuration of the instantaneous heating device.
- FIG. 41 is a perspective view showing an example of a conventional ceramic heater. .
- FIG. 42 is a schematic sectional view of a conventional heating device.
- FIG. 43 is a schematic sectional view of a conventional clothes washing apparatus. BEST MODE FOR CARRYING OUT THE INVENTION
- FIG. 1 is a perspective view showing a state where the sanitary washing device according to the first embodiment is mounted on a toilet.
- the sanitary washing device 100 is mounted on the toilet bowl 6100.
- the tank 700 is connected to a water supply pipe, and supplies flush water into the toilet 610.
- the sanitary washing device 100 includes a main body 200, a remote control device 300, a toilet seat 400, and a lid 500. A constant power is supplied to the sanitary washing device 100 from a power supply port 990.
- a toilet seat section 400 and a lid section 500 are attached to the main body section 200 so as to be freely opened and closed. Further, the main body portion 200 is provided with a seating detection device 62. Further, a fluid heating unit insertion port 970 is provided on a side surface of the main body 200. These seating detection devices 620 and the fluid heating unit inlet 970 will be described later.
- the main body 200 is provided with a washing water supply mechanism including a nozzle unit 30 and has a built-in control unit.
- the control unit of the main body 200 controls the washing water supply mechanism based on a signal transmitted by the remote control device 300 as described later.
- the control section of the main body section 200 includes a heater built in the toilet seat section 400 and the main body section 200
- FIG. 2 is a schematic diagram showing an example of the remote control device 300 of FIG.
- the remote control device 300 includes a plurality of LEDs (light emitting diodes) 310, a plurality of adjustment switches 300, a bottom switch 303, a stimulation switch 304, and a stop switch 300. 5. Equipped with bidide switch 306, dry switch 307 and deodorizing switch 308.
- the remote control device 3 0 wirelessly transmits a predetermined signal to a control unit provided in the main body unit 200 of the sanitary washing device 100 described below.
- the control unit of the main body unit 200 receives a predetermined signal wirelessly transmitted from the remote control device 300 and controls the washing water supply mechanism and the like.
- the nozzle part 30 of the main body part 200 shown in the figure moves and the washing water is jetted.
- the stimulus switch 304 By depressing the stimulus switch 304, the washing water for stimulating the local part of the human body is jetted from the nozzle part 30 of the main body part 200 in FIG.
- the stop switch 3 05 By pushing down the stop switch 3 05, the ejection of the washing water from the nozzle section 30 is stopped.
- the drying switch 307 by pressing the drying switch 307, warm air is blown out from a warm air supply device (not shown) of the sanitary washing device 100 to a local part of the human body.
- the deodorizing switch 308 By depressing the deodorizing switch 308, the surroundings are deodorized by the deodorizing device (not shown) of the sanitary washing device 100.
- the adjustment switch 302 When the user depresses the adjustment switch 302, the position of the nozzle portion 30 of the main body portion 200 of the sanitary washing device 100 in FIG. The temperature of the washing water to be changed or the pressure of the washing water ejected from the nozzle portion 30 changes. Further, a plurality of LEDs (light emitting diodes) 301 are turned on in response to the pressing of the adjustment switch 302.
- FIG. 3 shows the main body 200 of the sanitary washing device 100 according to the first embodiment.
- the main unit 200 shown in Fig. 3 is a control unit 4, a branch faucet 5, a strainer 6, a check valve 7, a constant flow valve 8, a water stop solenoid valve 9, a flow sensor 10, a fluid heating device * 1.
- the nozzle section 30 includes a bottom nozzle 1, a bidet nozzle 2, and a nozzle cleaning nozzle 3.
- a branch tap 5 is inserted into the water supply pipe 201.
- a strainer 6, a check valve 7, a constant flow valve 8, a water stop solenoid valve 9, a flow sensor 10 and Temperature sensors 1 2a are inserted in order.
- a temperature sensor 12 b and a pump 13 are inserted in a pipe 203 connected between the fluid heating device 11 a and the switching valve 14.
- a relief pipe 204 is connected between the pump 13 and the switching valve 14, and a relief water pipe 205 is connected between the water stop solenoid valve 9 and the flow sensor 10. I have.
- the relief pipe 204 is provided with a relief valve 206.
- the relief valve 206 is opened when the pressure of the pipe 203, especially on the downstream side of the pump 13, exceeds a predetermined value, and prevents troubles such as breakage of equipment and disconnection of a hose in case of abnormality.
- the washing water whose flow rate is adjusted by the constant flow valve 8 and which is not sucked by the pump 13, the washing water escapes and is discharged from the water pipe 205. As a result, a predetermined back pressure acts on the pump 13 without being affected by the water supply pressure.
- the flow rate sensor 10 measures the flow rate of the washing water flowing in the pipe 202 and gives the control unit 4 a measured flow rate value. Further, the temperature sensor 12 a measures the temperature of the washing water flowing in the pipe 202, and gives the temperature measurement value to the control unit 4.
- the fluid heating device 11a heats the cleaning water supplied through the pipe 202 to a predetermined temperature based on a control signal given by the control unit 4.
- Temperature sensor 12b measures the temperature of the washing water heated to a predetermined temperature by the fluid heating device 11a, and sends a temperature excess signal to the control unit 4 when the temperature exceeds the predetermined temperature. In this case, the control unit 4 cuts off the power supply to the fluid heating device 11a.
- the temperature fuse 12c detects the temperature of the fluid heating device 11a, and cuts off the power supply to the fluid heating device 11a when a predetermined temperature is exceeded.
- the pump 13 pumps the cleaning water heated by the fluid heating device 11 a to the switching valve 14 based on a control signal given by the control unit 4.
- the switching valve 14 supplies cleaning water to any one of the buttocks nozzle 1, the bidet nozzle 2, and the nozzle cleaning nozzle 3 of the nozzle unit 30 based on a control signal given by the control unit 4. As a result, washing water is ejected from one of the posterior nozzle 1, the bidet nozzle 2, and the nozzle cleaning nozzle 3.
- the control unit 4 determines that the human body is sitting on the toilet seat 400 when the signal from the seat detection device 62 is ON, and wirelessly transmits the signal from the remote control device 300 in FIG. Water shutoff solenoid valve based on the signal, the measured flow rate value given from the flow sensor 10, the temperature measurement value given from the temperature sensor 12 a, and the over temperature signal given from the temperature sensor 12 b .9, fluid heating device 1 1a, Apply control signals to pump 13 and switch valve 14.
- the control unit 4 determines that the human body is not seated on the toilet seat 400 when the signal from the seat detection device 62 is off, and the signal wirelessly transmitted from the remote control device 300 in FIG. Disable.
- a constant power is supplied to the control unit 4 from a power supply port 990.
- the electric power supplied by the control unit 4 is supplied to the fluid heating device lla, the pump 13 and the switching valve 14 and the like.
- FIG. 4 is a schematic cross-sectional view for explaining the internal structure of the fluid heating device 11a.
- the fluid heating device 11a is mainly composed of a rectangular parallelepiped case body 600, a series heater 505, a spring 515a, elastic holding members PI and P2, and an end surface holding device. It is composed of members 600a and 600b.
- a cleaning water inlet 511 for receiving cleaning water supplied from a pipe 202 is provided on an upper surface of one end side of the case main body 600 of the fluid heating device 11a.
- a washing water outlet 512 for sending heated washing water to the pump 13 is provided on the upper surface on the other end side of the case body 600.
- a linear sheathed heater 505 is arranged so as to penetrate the inside of case main body 600.
- a spring 515 a made of copper is spirally wound around the outer peripheral surface of the sheathed heater 505.
- a flow path 510 is formed by the outer peripheral surface of the sheath 505, the spring 515a, and the inner peripheral surface of the case body 600.
- the flow path 510 is formed helically with the longitudinal direction of the case body 600 as an axis.
- the cross-sectional area of the flow path 5 10 is determined by the outer peripheral surface of the sheathed heater 505, the spring 5 15 a and the inner peripheral surface of the case main body 600.
- the end surface holding members 600a and 600b are attached to both end surfaces of the case main body 600 via the elastic holding members P1 and P2, respectively. Thereby, the gap between the openings at both ends of the case main body 600 described later and the sheath heater 505 is closed. Further, O-rings P3 and P4 are provided between both end surfaces of the case body 600 and the lip holding members P1 and P2, respectively, and the end holding members 600a and 600b and the lip holding member are provided. O-rings P5 and P6 are provided between Pl and P2. As a result, washing water can flow out from the joint between the end faces of the case main body 600 and the end face holding members 600a and 600b and between the terminals 506 and 507 and the end face holding members 600a and 600b. Is prevented. Further, the elastic holding members P l and P 2 also have a function of holding the sheath heater 505.
- the flow rate of the washing water to be heated by the fluid heating device 11a is approximately 100 mL to 200 OmL per minute.
- the flow rate of the washing water at which the user can obtain a sufficient washing feeling is about 100 OmL or more per minute.
- the outer diameter of the sheathed heater 505 is about 3 mm to 20 mm
- the inner diameter of the case body 600 is about 5 mm to 30 mm
- the pitch of the spirally wound spring 515a is about 3 mm to 2 Omm.
- the wire diameter of the spring 515a is about 0.1 mm to 3 mm from the viewpoint of workability.
- the spring 515a may not be completely fixed to the seeds heater 505, but may be fixed at one end. In this case, since a part of the spring 515a is slidable, the spring 515a vibrates due to the pressure of the washing water and the elastic force of the spring 5.15a. This vibration can prevent the scale from adhering. Further, the pitch of the springs 515a is fixed, but is not limited to this, and may be partially widened or narrowed. Thereby, a turbulent state of the washing water described later can be generated more efficiently.
- a spring made of another metal, a spiral metal wire having no elasticity, a spiral resin, or the like may be used.
- FIG. 5 is a schematic sectional view showing the internal structure of the sheathed heater 505.
- the sheath heater 505 is mainly composed of a sheath tube 505a, a heater wire 505b, an insulating powder 505c, a sealant 505d and a terminal 506. , 507. '
- the line 505b is wound spirally (coiled).
- Terminals 506 and 507 are attached to both ends of the wound line 505b.
- the terminals 506, 507 and the wire 505b are inserted into the sheath tube 505a.
- the sheath tube 505a is filled with absolute powder 505c so that the terminals 506, 507 and the hysteresis line 505b do not come into direct contact with the sheath tube 505a. Have been. Thereby, the terminal 506 and the terminal 507 are electrically insulated.
- the tip of the terminal 506 protrudes from one end of the sheath tube 505a, and the tip of the terminal 507 protrudes from the other end of the sheath tube 505a. Further, one end and the other end of the sheath tube 505a are sealed with a sealant 505d.
- sheath tube 505a for example, copper, SUS (stainless steel) or other metal having high thermal conductivity is used.
- insulating powder 505c for example, magnesium oxide having a high insulating effect is used.
- the heater wire 505b is spirally wound, so that the heater wire 505b is provided more than when the heater wire 505b is provided linearly.
- b length Can be lengthened.
- FIG. 6 is a cross-sectional view showing the internal structure of the sheath heater 500 of the fluid heating device 11a in FIG.
- the effective heater length L 1 of the series heater 505 is shorter than the length from the washing water inlet 5 1 1 to the washing water outlet 5 1 2 of the case body 600. .
- the non-heating portion L2 of the series heater 505 is held movably in the axial direction by elastic holding members Pl and P2, respectively. Therefore, the unheated portion L2 of the series heater 505 does not reach a high temperature. As a result, the elastic holding members Pl and P2 do not melt.
- the state of being held movably in the axial direction refers to a state in which the sheathed heater 505 is movably held in the axial direction due to the bending of the elastic holding members P 1 and P 2 made of rubber, for example. .
- FIG. 7 is a sectional view of the fluid heating device 11a shown in FIG. In FIG. 7, the illustration of the springs 5 15 a is omitted.
- the washing water inlet 511 of the case main body 600 is provided at a position eccentric with respect to the substantially circular center of the cross section of the inner peripheral surface of the case main body 600. Can be Therefore, the washing water flows in the circumferential direction F along the inner peripheral surface of the case main body 600 and the outer peripheral surface of the seed tube 505a.
- the flow in the circumferential direction F is the same as the flow direction of the spiral flow path 5110.
- the flow channel 5 10 is formed with a small cross-sectional area along the outer peripheral surface of the seeds 5 Compared to the speed of the washing water flowing linearly along the series heater 5 05 from 5 11 to the washing water outlet 5 1 2, the washing water flowing in the spiral flow path 5 10 Speed increases. .
- the washing water flows through the inside of the flow path 510 along the outer peripheral surface of the sheath heater 505, so that the heat generated from the sheath heater 505 is efficiently transmitted to the washing water.
- the cleaning water outlet 5 12 of the case body 600 is located at a position eccentric with respect to the substantially circular center of the cross section of the inner peripheral surface of the case body 600. Is provided. Therefore, the washing water can be supplied from the washing water outlet 5 12 to the pump 13 in FIG. 3 without attenuating the momentum of the washing water flowing through the spirally formed flow path 5 10.
- the flow channel 5 10 will be described in detail.
- the flow path 510 is formed by the outer peripheral surface of the sheath heater 505, the spring 515a, and the inner peripheral surface of the case main body 600.
- the cross-sectional area of the flow path 5110 in the direction of flow is small. As a result, as described above, the flow of the washing water in the flow path 5110 becomes faster, so that the washing water is in a turbulent state and is stirred. As a result, the washing water can efficiently absorb heat from the seawater heater 505.
- turbulence is used to mean turbulence in which the direction of the flow of washing water changes or turbulence in which the speed of the flow of washing water changes. Further, turbulence may be generated using a member other than a spring. For example, an airfoil-shaped member that generates turbulence in the flow of cleaning water, or various guide members that generate turbulence in the flow of cleaning water may be used.
- the length of the flow path 5 10 is longer than the length of a straight line from the cleaning water inlet 5 11 to the cleaning water outlet 5 12.
- the washing water flowing through the flow path has a rectifying effect and tends to be laminar.
- the flow path 510 is formed in a spiral shape, a flow is formed in which the washing water flowing in the flow path 510 is not linear but constantly deflected, and the flow in a turbulent state is maintained at a constant level. Can be done. As a result, the pressure loss of the washing water can be reduced.
- FIG 9 are flow velocity distribution diagrams of the washing water flowing in the flow path 5 10.
- Figure $ shows the case where the flow of washing water is slow
- Figure 9 shows the case where the flow of washing water is fast.
- the washing water in the boundary layer between the sheath heater 505 and water is used. Occurs when the temperature increases.
- the scale when the flow of the washing water in the flow path 5 10 is fast, even if scale is generated, the scale is flowed to the downstream side, so that the scale generated at one location is prevented from sticking and growing into a large scale. be able to. Also, the scale itself can be ground by the turbulent flow of the washing water. As a result, the generation of scale in the fluid heating device 11a can be prevented, so that the life of the fluid heating device 11a itself can be prolonged. '
- FIG. 10 is a sectional view showing another example of the fluid heating device.
- the fluid heating device 11 b of FIG. 10 has a spring 5 15 b instead of the spring 5 15 a of the fluid heating device 11 a shown in FIG. 4, and a flow passage instead of the flow passage 5 10. 5 2 2 and 5 2 3 are formed.
- the spring 515 b is provided in the vicinity of the washing water outlet 512 of the case main body 600.
- the length of the spring 515b is less than half the length of the spring 515a.
- the water is supplied to the washing water inlet 5 11 provided eccentrically to the case body 600.
- the washed water flows spirally in the flow path 522 along the outer peripheral surface of the shower head 505.
- the spiral flow momentum attenuates near the center between the wash water inlet 511 and the wash water outlet 5 12.
- the flow of the washing water is only the flow in the longitudinal direction of the fluid heating device 11b.
- the spiral flow path 5 23 is formed by the springs 5 15b, so that the turbulent flow of the washing water is reduced. While being generated again, the flow of the washing water in the flow path 5 23 becomes faster.
- turbulence is generated while increasing the flow of the washing water. The generation of scale can be prevented.
- the spring 515 b is provided from the vicinity of the center of the case body 600 to the downstream.
- the cross section of the flow path 52.2 is not reduced by the spring 5b on the upstream side of the case body 600. Therefore, the pressure loss of the washing water on the upstream side of the case body 600 is reduced.
- FIG. 11 is a sectional view showing still another example of the fluid heating device.
- the spring 5 15 c is provided in the vicinity of the washing water inlet of the case body 600.
- the spring 5 15 d is provided near the center of the case body 600, and the spring 5 15 5 e is provided near the washing water outlet 5 12 of the case body 600.
- These springs 515c, 515d, 515e are provided intermittently at regular intervals.
- the washing water supplied to the washing water inlet 511 of the case main body 600 flows through the outer peripheral surface of the seeds 500 and the flow path 527 formed by the spring 5c. Flow Pass. This creates a spiral flow of wash water.
- the spiral flow of the washing water generated by flowing through the flow path 527 is maintained in the flow path 528 between the springs 515c and 515d.
- the washing water flows through the outer circumferential surface of the sheathed heater 505 and the flow path 529 formed by the spring 515d. Thereby, a spiral flow of the washing water is generated again.
- a spiral flow of the washing water generated by flowing through the flow path 529 is maintained in the flow path 5330 between the springs 515d and 515e.
- the fluid flows through the outer peripheral surface of Shizuhi overnight 505 and the flow path 531 formed by the spring 515e. Thereby, a spiral flow of the washing water is generated again.
- the spiral shape of the washing water is formed between the spring 5 15 c and the spring 5 15 d provided in the case body 600 and between the spring 5 15 d and the spring 5 15 e. Even if the flow is attenuated, a spiral flow is generated again by flowing through the flow paths 529 and 531. Therefore, even in the environment where the temperature of the washing water rises and scale generation increases near the downstream part of the case body 600, the turbulent flow is generated while the washing water flows quickly. Can be. As a result, generation of scale can be prevented.
- the spring 515a is provided on the entire case body 600 (see FIG. 4)
- no spring is provided on a part of the case body 600, so that the case body 600 is not provided.
- the cross-sectional areas of the flow paths 528 and 5330 are not reduced by the springs 515c, 515d and 515e. Therefore, the pressure loss of the washing water is reduced in a part of the case main body 600.
- FIG. 12 is a cross-sectional view showing a state in which the sanitary washing device 100 of FIG. 1 mounted on a toilet bowl is used on a human body.
- the various devices shown in FIG. 3 are arranged in a narrow space in the main body 200. Therefore, a large space may not be obtained only for the fluid heating device 11c. Therefore, in order to reduce the size of the fluid heating device 11c, a fluid heating device 11c in which the seeds heater 505 is curved in a U-shaped or meandering shape is manufactured. In this case, no spring is provided on the curved portion of the sheath heater 505 of the fluid heating device 11c that is curved in a U-shape or meandering, and the spring is not provided on the linear portion of the sheath heater 505. By providing the springs 5c, 5d, and 5e, the fluid heating device 11c that can be reduced in size can be manufactured.
- the space-saving and miniaturizable fluid heating device 11 c in the main body 200.
- the cleaning water heated by the fluid heating device 11c is jetted from the nozzle 30 to the portion 980 to be cleaned. be able to.
- the part to be cleaned 980 of the human body is cleaned.
- the heat released from the sheath heater 505 is supplied to the washing water by the cleaning liquid flowing on the outer peripheral surface of the sheath heater 505. Can be. As a result, it is possible to realize a fluid heating device that can be downsized and has high heat exchange efficiency.
- a spring is provided at a portion where the speed of the washing water is reduced, the speed of the washing water can be increased and the washing water can be in a turbulent state. As a result, it is possible to prevent the adhesion of scale and the like generated on the surface of the shizuhi-505, and to prolong the life of the fluid heating device. Furthermore, by not providing a spring in a portion other than a portion where the speed of the washing water is likely to decrease, pressure loss in the flow path can be prevented as compared with the case where the spring is provided on the whole. Further, a fluid heating device can be manufactured by inserting a sheathed heater into a spring and covering it with the case body 600. Therefore, the production of the fluid heating device becomes easy, and the production cost can be reduced.
- the fluid heating devices 11a and 11b are not limited to the fluid heating devices 11c and may be formed by bending the fluid heating devices 11a and 11b in a U-shape or meandering shape.
- the seating detection device 62 may be a device that detects a human body by an infrared ray method, or may be a device that detects a human body by the capacitance of the toilet seat 400. It may be a device that detects that a human body has entered a room (toilet) where the sanitary washing device 100 is provided, and may be linked to lighting in the room where the sanitary washing device 100 is provided. It may be a device for detecting the presence or absence of the presence.
- the remote operation device 300b of the sanitary washing device 100b according to the second embodiment is the first device.
- the difference from the remote control device 300 of the sanitary washing device 100 according to the present embodiment is as follows.
- FIG. 13 is a schematic diagram showing an example of the remote control device 300b of the sanitary washing device 100b according to the second embodiment.
- the remote control device 300b is composed of a liquid crystal display section 3226, a multi-adjustment switch 302, a bottom switch 303, a stop switch 300, a bide switch 303, and drying.
- a switch 307 and a deodorizing switch 308 are provided.
- the flow rate of the washing water is displayed on the liquid crystal display section 32.6.
- the user can check the flow rate of the washing water by looking at the display on the liquid crystal display section 326.
- the flow rate of the washing water means the flow rate of the washing water ejected from the nozzle section 30 in FIG. 1.
- the user operates the plurality of adjustment switches 302 so that the flow rate from the nozzle section 30 is increased. It is possible to change the flow rate of the washing water that is jetted. As a result, the value indicating the flow rate of the washing water displayed on the liquid crystal display section 326 increases or decreases. '
- FIG. 14 is a diagram showing the configuration of the main body 200 b of the sanitary washing device 100 b according to the second embodiment.
- the configuration of the main body 200b in FIG. 14 differs from the configuration of the main body 200b in FIG. 3 in that a fluid heating unit 111 is provided instead of the fluid heating device 111a. .
- the fluid heating unit 111 will be described.
- FIG. 15 is a schematic perspective view showing the configuration of the fluid heating unit 111. As shown in FIG.
- the fluid heating unit 111 mainly includes two fluid heating devices 1 d and a heating device disposition base 5 27.
- a fluid heating device mounting portion 528 is provided at the center of the heating device mounting base 527, and electrical connection portions 52.9 are provided at both ends of the fluid heating device mounting portion 528.
- the electrical connection section 529 is provided with electrical terminal sections 506a, 506b, 507a and 507b.
- FIG. 16 is a schematic cross-sectional view showing an example of the fluid heating device lid of the fluid heating unit 111 of FIG.
- the fluid heating device 11 d shown in FIG. 16 differs from the fluid heating device 11 a of FIG. 4 in the position of the washing water outlet 5 12.
- a washing water inlet 511 is provided at one end of the fluid heating device lid.
- the other end of the fluid heating device 11 d is provided with a washing water outlet 5 12.
- the washing water outlet ⁇ 2 of the fluid heating device 11 d is provided in the opposite direction to the washing water inlet 511 with the seeds heater 505 interposed therebetween.
- the cleaning water outlet 5 1 2 of the fluid heating device 11 d has a shape connectable to the cleaning water inlet 5 1 1 of the fluid heating device 11 d.
- the washing water outlet 5 1 2 of one fluid heating device lid is connected to the washing water inlet 5 1 1 of another fluid heating device 11 d.
- the terminal 506 of one of the two fluid heating devices 11 d and one of the fluid heating devices 1 1 d is connected to the electrical terminal portion 506 a, and the one fluid heating device 1 1 d
- the terminal 507 of the series heater is connected to the electric terminal section 507a
- the terminal 506 of the series heater of the other fluid heating device 1d is connected to the electric terminal section 506b.
- the terminal 507 of the sheathed heater of the other fluid heating device 11 d is connected to the electric terminal 507 b.
- the two fluid heating devices 1 1 d are heated by electric power supplied from the electrical terminals 506 a, 506 b, 507 a, and 507 b. To occur.
- Cleaning fluid supplied to the 1 d cleaning water inlet 5 1 1 of the fluid heating device 1 1 is heated by the 1 d fluid heating device 1 1 d series heater, and the 1 d fluid cleaning device 1 1 d is cleaned.
- the water is further heated by the sheath heater of the other fluid heating device 11b via the water outlet 511a and the washing water inlet 511 of the other fluid heating device 11d. Thereafter, the heated washing water is supplied to the pump 13 (see FIG. 3) from the washing water outlet 5 12 of the other fluid heating device 11 d.
- the speed of the washing water flowing in the spirally formed flow path 5110a is increased by a straight line along the series heater from the washing water inlet 511 to the washing water outlet 512. It is large compared to the speed of water.
- the cleaning water flows in the flow path 5100a along the outer peripheral surface of the heater in a high-speed turbulent state, so that the cleaning water is stirred and the outer peripheral surface of the sheath heater is stirred. The generated heat can be efficiently transmitted to the entire washing water.
- FIG. 17 is a schematic diagram for explaining an arrangement method of the fluid heating device 11 d.
- FIG. 17 (a) shows the state before the two fluid heating devices 1 1d are arranged in the main body 200b
- FIG. 17 (b) shows the two fluid heating devices 1 1d in the main body 200b. This shows the state after d is placed.
- the nozzle unit 30, the control unit 4, the switching valve 14, and the heating device disposition base 527 are provided in the main body 200b.
- a fluid heating unit inlet 970 is provided on a side surface of the main body 200b (see FIG. 1). In FIG. 17 (a), the fluid heating unit ⁇ inlet 970 is closed.
- the fluid heating unit inlet 970 provided on the side surface of the main body 200b is opened.
- the two fluid heating devices 11 d are inserted into the main body part 200 b and arranged on the heating device mounting base 527.
- the pipe 202 from the water supply source 201 is connected to the washing water inlet 5 1 1 of the fluid heating device 1 1 d, and the washing water outlet 512 of the other fluid heating device 1 1 d is connected to the piping 203.
- the terminals 500 and 507 of the two fluid heating devices 11 d are connected to the electrical terminals 506a, 506b, 507a and 507b, respectively (see Fig. 15).
- the fluid heating unit insertion port 970 is closed.
- the number of fluid heating devices 11 d is not limited to two, and may be increased or decreased.
- the output of one fluid heating device 11d is approximately 1000-1500W.
- Fluid heating device 11 If the minimum temperature of the cleaning water supplied to 1 d is approximately 5 ° C and the temperature of the cleaning water jetting to the part to be cleaned of the human body is approximately 40 ° C, approximately 1,000 to 1
- the maximum amount of washing water that can be heated to approximately 40 ° C with an output of 500W is approximately 500 milliliters per minute. Therefore, when the maximum washing water volume is required to be approximately 1000 milliliters per minute, two fluid heating units 11b should be provided.
- the control unit 4 of the main body 200 b of the sanitary washing device 100 receives water from the temperature sensor 12 a. Based on the temperature and the flow rate value from the flow rate sensor 10, the amount of power to be supplied to the series heater of each fluid heating device 11d is calculated, and the calculated amount of power is supplied to the series heater.
- the number of fluid heating devices 11 d can be freely changed. As a result, the washing water can be heated to an appropriate temperature even in a severe installation environment and ambient temperature.
- FIG. 18 is a schematic plan view showing another example of the fluid heating unit.
- the fluid heating unit 111b shown in FIG. 18 further includes a connecting member 552 in addition to the fluid heating unit 111 shown in FIG.
- FIG. 19 is a schematic plan view showing still another example of the body heating unit
- FIG. 20 is a schematic cross section showing an example of a fluid heating device used in the fluid heating unit of FIG. FIG.
- the fluid heating unit 111c shown in FIG. 19 includes two fluid heating devices 1 le instead of the two fluid heating devices 111d of the fluid heating unit 111 shown in FIG.
- the fluid heating device 11 e shown in FIG. 20 differs from the fluid heating device 11 d of FIG. 16 in that a washing water outlet 5 12 e is provided instead of the washing water outlet 5 12.
- the inside diameter of the washing water outlet 5 1 2 e of the fluid heating device 11 e is larger than the outside diameter of the washing water inlet 5 11 1 of the fluid heating device 11 e, It is smaller than the sum of the outside diameter of the inlet 5 11 and the diameter of the O-ring P 7.
- the washing water outlet 5 1 2 e of one fluid heating device lie and the washing water inlet 5 1 1 of the other fluid heating device 1 1 e are connected via the ring P 7. By doing so, it is possible to fit in a watertight manner.
- the number of fluid heating devices 11e can be easily increased or decreased.
- FIG. 21 is a schematic sectional view showing still another example of the fluid heating device.
- the difference between the cross section of the fluid heating device 11 d shown in FIG. 16 and the fluid heating device 11 ⁇ shown in FIG. 21 is as follows.
- the washing water inlet 511 f is provided obliquely outward from one end of the main body case 600 so as to be parallel to the flow direction of the flow path 510.
- the outlet 512f is provided obliquely outward from the other end of the main body case 600 so as to be parallel to the flow direction of the flow path 5110.
- the fluid heating unit is provided with the plurality of fluid heating devices, the maximum heating amount of the fluid heating unit can be increased. As a result, a flow rate at a predetermined temperature can be secured according to the user's preference or use environment.
- a sanitary washing device according to a third embodiment will be described.
- the difference between the sanitary washing device 100 c (not shown) according to the third embodiment and the sanitary washing device 100 according to the first embodiment is that the fluid heating device 11 a Is provided with 11 g of fluid heating device.
- FIG. 22 is a plan view showing an example of the structure of the fluid heating device 11 g according to the third embodiment.
- the fluid heating device 1 1 g is mainly composed of a rectangular parallelepiped case body 600, linear sheathed heaters 500 x, 505 y, and springs 515 a, 51 5b (not shown), the elastic holding members P1, P2 and the end surface holding members 600a, 600b.
- the washing water inlet 511 for receiving the washing water supplied from the pipe 202 and the pump for heating the washing water are provided on the upper surface of one end of the case body 600 of 1 g.
- a wash water outlet 5 1 2 for sending out to 13 is provided.
- a temperature sensor 12a and a temperature sensor 12b are provided near the washing water outlet 5 12.
- a temperature fuse 12 is provided at the other end of the series heater 505X.
- End face holding members 600a and 600b are attached to both end faces of the case main body 600 via elastic holding members P1 and P2, respectively. As a result, the gaps between the openings at both ends of the case body 600 described later and the series heaters .505X and 505y are closed.
- FIG. 23 is a view for explaining the internal structure of the fluid heating device 11 g shown in FIG.
- FIG. 23 (a) shows a cross section taken along the line XX of the fluid heating device 11 g shown in FIG. 22, and
- FIG. 23 (b) shows a cross section taken along the line YY of the fluid heating device 11 g shown in FIG. 23 (a).
- Fig. 23 (c) shows a cross section taken along the line Z1-Z1 of the fluid heating device 11g shown in Fig. 23 (a)
- Fig. 23 (d) shows a fluid heating device 11 shown in Fig. 23 (a).
- 2 shows a cross section taken along line Z 2 -Z 2 of g.
- the illustration of the springs 515a and 515b is omitted.
- Linear sheathed heaters 505 X and 505 y are arranged substantially in parallel so as to penetrate the inside of case body 600.
- a spring 515a is spirally wound around the outer peripheral surface of the Shizuhi overnight 505X, and a spring 515b is spirally wound around the outer peripheral surface of the Shizuhi overnight 505y.
- a flow path 510a is formed by the outer peripheral surface of the sheathed heater 505X, the spring 515a, and the inner peripheral surface of the case body 600.
- the flow path 510a is formed helically with the longitudinal direction of the case body 6.00 as an axis.
- a flow path 510 b is formed by the outer peripheral surface of the sheath 505 y, the spring 515 b, and the inner peripheral surface of the case body 600.
- the flow path 510 b is formed helically with the longitudinal direction of the case body 600 as an axis.
- O-rings P 3 and P 4 are provided between both end surfaces of the case body 600 and the elastic holding members P 1 and P 2, respectively, and the end holding members 600 a and 600 b and the elastic holding members P 1 and P 2 are provided. ⁇ -rings P5 and P6 are provided between them. This prevents the washing water from flowing out from the joint between the end faces of the case body 600 and the end face holding members 600a and 600b.
- the vicinity of both ends of the outer peripheral surfaces of the sheathed heaters 505x and 505y is held movably in the axial direction by elastic holding members PI and P2, respectively.
- the state of being held movably in the axial direction means, for example, the bending of the elastic holding members P1 and P2 made of rubber.
- 505 X, 505 y is held movably in the axial direction, or the surfaces of the elastic holding members P 1, P 2 made of rubber and the sheath heater 505 x, There is a state where the shear heaters 505X and 505y are movably held in the axial direction by sliding with the surface of 505y.
- the vicinity of both ends of the outer peripheral surface of the 505 x and 505 y is not the part of the nichrome wire used as a heating element, but the part of the metal terminal connected to the nichrome wire (the non-heated part). L 2; see FIG. 5). Therefore, the temperature near the both ends of 505 X and 505 y is not high. Therefore, the elastic holding members PI and P2 do not melt.
- the control unit 4 performs feedback control of the temperatures of the 505 X and 505 y of the fluid heating device 11 based on the temperature measurement value provided by the temperature sensor 12 a.
- the detecting portion of the temperature sensor 12b is inserted into the cylindrical space 5110b.
- the control unit 4 controls the supply of power to the sheathed heaters 505 x and 505 y of the fluid heating device 11 based on the over-temperature signal given from the temperature sensor 12 b and the shutoff thereof.
- the thermal fuse 12 ⁇ ⁇ cuts off the power supply to the heater 505X and 505Y when the temperature of the heater 505y exceeds a predetermined temperature. Since the temperature sensor 12 a is provided near the washing water outlet 5 12, the temperature of the washing water supplied to the posterior nozzle 1 can be accurately controlled. Furthermore, abnormal heating of the 505 X and 505 y is prevented, and safety is improved.
- the temperature sensor 1 2b is provided near the washing water outlet 5 12 similarly to the temperature sensor 1 2a, so that the control unit 4 accurately controls the temperature of the washing water supplied to the posterior nozzle 1. be able to.
- the washing water flows from the washing water inlet 511 provided at one end of the fluid heating device 11g in Fig. 23 (c) to the spiral flow path 5 formed around the sheathed heater 50.5X. Supplied to 10a.
- the washing water inlet 511 is provided at a position eccentric with respect to the axis of the flow path 5110a. Therefore, the cleaning water flows in a spiral flow path 5100a formed along the outer peripheral surface of the series heater 5505X.
- the flow path 5100c is provided at a position eccentric with respect to the axis of the spiral flow paths 5110a and 510b. Thereby, the flow path 5 1 0
- the washing water flowing in a attenuates the velocity from the flow path 5 10 b of 1 g of the fluid heating device shown in Fig. 23 (d) to the spiral flow path 5 10 b formed around the series heater 505 y. Supplied without. Then, the washing water is discharged from the washing water outlet 512 provided at one end of the fluid heating device 1lg in FIG. 23 (c).
- the velocity of the washing water flowing in the spirally formed flow paths 51 0 a and 5 10 b is increased from the washing water inlet 51 1 to the flow path 510 c and from the flow path 5 10 c to the washing water outlet. Up to 512, it becomes larger than the speed of the washing water flowing linearly along the 505 X and 505 y.
- the washing water flows in the flow paths 510a, 510b in a high-speed turbulent state along the outer peripheral surface of the sheathed heaters 505X, 505y, so that the washing water is stirred.
- the heat generated on the outer peripheral surfaces of the sheathed heaters 505a and 505b can be efficiently transmitted to the entire washing water.
- the outer peripheral portions of the series heaters 505x and 505y are not in contact with the rectangular parallelepiped case main body 600, even if the series heaters 505x and 505y thermally expand or contract in the radial direction, they are not sealed. No stress is applied to the 505 x, 505 y and the case body 600, and the 505 x, 505 y and the case body 600 are prevented from being damaged or deformed.
- control unit 4 controls the temperatures of the seeds 505 X and 505 y of the fluid heating device 11 by feedback control.
- the present invention is not limited to this, and the control unit 4 controls the temperature by feed forward control.
- the temperature of 505x and 505y may be controlled, or the temperature of 505x and 505y may be controlled by feedforward control when the temperature rises, and the feedback may be controlled by normal operation when the temperature is normal.
- Complex control for controlling the sheath heaters 505X and 505y by control may be performed.
- the amount of current supplied to a plurality of seed heaters 505 x and 505 y may be controlled by a triac element.
- a duty ratio may be set according to the plurality of seed heaters 505X and 505y, and control may be performed so that power is supplied alternately according to the duty ratio.
- two inexpensive straight-lined heaters 505X and 505y which are inexpensive and hard to break are used.
- a mold size heater may be used.
- cylindrical heaters 505 X and 505 y are used, but the present invention is not limited to this, and a triangular prism, quadrangular prism, or polygonal column heater may be used. Good.
- the sheath heaters 505 x and 505 y are used.
- the present invention is not limited to this, and the same cylindrical shape as the sheath heaters 505 X and 505 y is used.
- a ceramic ceramic having a shape may be used.
- FIG. 24 is a diagram showing heating characteristics of a fluid heating device 11 g according to the third embodiment.
- the vertical axis in Fig. 24 shows the tap water flow rate Q (milliliter Z minute), and the horizontal axis shows the input power (watt). ,
- the open triangles in Fig. 24 indicate the heating characteristics of the wash water when the wash water with a 30 ° C inlet temperature rises to approximately 40 ° C, and the black squares indicate the washwater inlet temperature. Shows the heating characteristics of the wash water when the wash water at 25 ° C is raised to approximately 40 ° C, and the black triangles indicate the wash water with a wash water input temperature of approximately 20 ° C to approximately 40 ° C.
- the washing water heating characteristics when the temperature rises show the white squares show the washing water heating characteristics when increasing the temperature of the washing water at 15 ° C to approximately 40 ° C, and the white circles show the heating temperature of 1
- the heating characteristics of the wash water when the wash water at 0 ° C is raised to about 40 ° C are shown.
- the black circles show the case where the wash water when the incoming water temperature is 5 ° C is raised to about 40 ° C. Shows the heating characteristics of the wash water.
- the inlet temperature of the wash water in winter is, for example, 5 ° C.
- the amount of washing water necessary for the user to obtain a sufficient washing feeling is approximately 100 milliliters.
- the maximum input power when the temperature of the wash water of approximately 100 milliliters is raised to approximately 40 ° C. Is 250 watts.
- the inlet temperature of the wash water in the middle or summer is, for example, about 20 ° C.
- the amount of washing water required for the user to obtain a sufficient washing feeling is approximately 1,000 ml as in winter.
- the heating characteristics (inlet water temperature 20 ° C) indicated by the black triangle in Fig. 24 the temperature of about 100 milliliters of flush water is roughly
- the maximum input power required to increase to 40 ° C is 1500 watts.
- the maximum input power of the sheathed heaters 505 x and 505 y is 2
- FIG. 25 is a characteristic diagram showing a rise in the temperature of the washing water of 1 g of the fluid heating device 11 according to the third embodiment
- FIG. 26 is a characteristic diagram showing the fluid heating device 1 according to the third embodiment
- FIG. 4 is a characteristic diagram showing a temperature control response of 1 g of washing water.
- the vertical axis shown in S25 shows the washing water temperature (° C), and the horizontal axis shows the response time (sec).
- the vertical axis in FIG. 26 shows the target temperature T Q (° C), and the horizontal axis shows the response time (sec).
- the dotted line T 1 indicates the characteristics of the fluid heating device having the heating characteristic of 20 ⁇ ⁇ ⁇ per square centimeter (the wattage per square centimeter is the watt density (WZcm 2 )).
- 2 indicates the characteristics of a fluid heating device having a heating characteristic of a watt density of 30 (W / cm 2 )
- the solid line T 3 indicates the characteristics of a fluid heating device having a heating characteristic of a dot density of 38 (WZcm 2 ).
- the solid line T4 shows the characteristics of the fluid heating device having the heating characteristics of a watt density of 50 (WZcm 2 ). The detailed definition of watt density will be described later.
- the temperature of the washing water can be increased in a short time as the plot density of the heating characteristics of the fluid heating device increases.
- a fluid heating device having a heating characteristic of a watt density of 20 can increase the maximum by about 8 K per second, and as shown by a dotted line T2, Wat Mi With a fluid heating device having a heating characteristic of 30 (W / cm 2 ), it can increase up to about 10 K per second, and as shown by a solid line T 3, a watt density of 38 (W / cm 2 ) In a fluid heating device with heating characteristics, it can be increased by up to about 12K per second.As shown by a solid line T4, in a fluid heating device with a heating characteristic with a watt density of 50 (WZcm 2 ), 1 In addition, as shown by the dotted line T1 in FIG.
- the temperature control response of the washing water shown by the dotted line T1 indicates that the thermal response of the seed heater is slow. This is considered to be because the heat capacity of the sheath tube 505a and the insulating powder 505c is relatively large compared to the calorific value of the night line 505b of the Shizuhi overnight 505X, 505y.
- a fluid heating device having a heating characteristic of a pet density of 20 pets is not suitable for heating stable purified water with a fluctuation range of about 1 ° C or less because it has characteristics that it is hard to heat and hard to cool.
- the watt density is —This is the value obtained by dividing the electric power applied between the terminals 506 and 507 of the evening 505 by the surface area of the sheath tube 505 a at the effective effective length L 1, that is, the power per unit surface area at the effective heater length L 1. is there.
- the pet density (WZcm 2 ) is calculated by changing the electric power (W) applied between the terminals 506 and 507 to the diameter ⁇ (cm) of the sheath tube 505a. It is the value obtained by dividing by the multiplication result of the effective length L 1 (cm) and 7T.
- the user operates the remote control device 300b to change the washing water temperature, the washing water flow rate, the incoming water temperature, and the like.
- the control unit 4 automatically adjusts the power applied to the heaters 505 X, 505 y.
- the watt density of the sheathed heaters 505X and 505y is also increased or decreased. Therefore, the dot density in the above description means the dot density when the electric power applied to the sheathed heaters 505x and 505y is maximized in order to set the temperature of the washing water to the set temperature.
- the average watt density of the sheath of 505, 505x, 505y with a pet density of 30 is usually about 4 to 8 (W cm 2 ). This is several times the watt density allowed by each company. This allowable watt density is determined in terms of heater life.
- the series heaters 505 X and 505 y which have a large overall heat generation, and have a long life and heat capacity.
- the fluid heaters 11a, lib, 11c, and 11d which are small and have excellent thermal response, were manufactured.
- the speed of the washing water flowing in the spirally formed flow path 510 is increased from the washing water inlet 511 to the washing water outlet 512. Become.
- the washing water flows in the flow path 510 in a high-speed turbulent state along the outer peripheral surface of the sheathed heater, so that the washing water is stirred, and is generated on the outer peripheral surface of the shower over night. The generated heat can be efficiently transmitted to the entire washing water.
- the seeds heater was used as the heating element. Without limitation, for example, a ceramic heater may be used. In addition, the number of pieces per night was two, but the number is not limited to this, and an arbitrary number may be used. Further, the shape of the seeds is set to be cylindrical or cylindrical. However, the shape is not limited to this, and may be any other shape such as a triangular prism or a quadrangular prism.
- FIG. 27 is a schematic sectional view showing a fluid heating device 11h according to the fourth embodiment.
- the fluid heating device 11h shown in FIG. 27 includes a heat sensitive plate P8 and a thermistor 518 instead of the lipophilic holding member P2 of the fluid heating device 11a shown in FIG.
- Thermistor P8 is fitted with thermistor 518.
- the heat-sensitive plate P8 is made of copper having high thermal conductivity.
- the heat sink 518 can accurately detect the temperature of the non-heated portion of the sheathed heater 505 and L2 via the heat-sensitive plate P8.
- washing water is supplied to the washing water inlet 5 11 of the fluid heating device 11 h.
- the control unit 4 applies electric power to the terminals 506 and 507 of the sheath heater 505.
- the heat generated in the sheath heater 505 is supplied to the washing water flowing through the flow passage 510 formed by the sheath heater 505, the spring 515a, and the case main body 600a. .
- the heated wash water flows out of the wash water outlet 5 12.
- the control unit 4 adjusts the electric power applied to the sheathed heater 505 based on the temperature detected by the temperature sensor 518. As a result, even if the flow rate of the washing water flowing through the flow path 5 10 fluctuates, the washing water at a certain temperature can flow out from the washing water outlet 5 12.
- the controller 4 adjusts the electric power applied to the series heater 505 based on the temperature rise gradient detected from the thermistor 518, whereby It is important to prevent the temperature of 505 Therefore, it is possible to prevent the failure of the fluid cleaning device 1 h itself. As a result, safety can be improved.
- the fluid heating device 11h shown in Fig. 27 is an instantaneous fluid heating device that raises the required flow rate of cleaning water to a predetermined temperature in a short time, so the cleaning water is heated in advance. It is possible to realize a reduction in cost and a reduction in power consumption as compared with a hot-water storage type fluid heating device.
- the thermistor 518 and the non-heated portion L2 (see FIG. 5) of the sheathed heater 505 are brought into contact via the heat-sensitive plate P8.
- the heat-sensitive plate P 8 does not hinder the flow of the washing water and the assemblability of the fluid heating device 1 lh.
- the provision of the heat-sensing plate P 8 and the heat sink 518 allows the temperature of the seeds to be properly detected to control the temperature of the washing water and to carry out an empty heating measure.
- the speed of the washing water flowing through the spirally formed flow path 5 11 of the fluid heating device 1 1 h is changed from the washing water inlet 5 1 1 to the washing water outlet 5 1 2 It will be greater than the velocity of the washing water flowing linearly along the path.
- the washing water flows in the flow path 5 10 along the outer peripheral surface of the sheath heater 5 05 in a high-speed turbulent state, so that the washing water is stirred and the sheath heater 5 0
- the heat generated on the outer peripheral surface of 5 can be efficiently transmitted to the entire washing water.
- the cross-sectional shape of the thermal fluid heating device 11h is formed by a curved surface such as a circle or an ellipse, it is easy to fix the thermistor 5 18 to the heat-sensitive plate P8. Can be attached. As a result, the heating temperature of the thermal fluid heating device 1 lh can be accurately detected.
- the heat-sensitive plate P8 is made of copper, and the seeds heater 505 is also made of copper of the same material, so that brazing can be easily performed. Since the heat-sensitive plate P8 made of copper has particularly excellent thermal conductivity and corrosion resistance that can be used for a long period of time, the temperature of the sheathed heater 505 can be quickly and accurately adjusted to the thermistor 518 for a long period of time. Can tell.
- the material of the heat-sensitive plate P8 is not limited to copper, and when the material of the sheath tube 505a of the sheathed heater 505 is changed, the material of the sheath tube 505a is changed.
- the material of the heat sensitive plate P8 may be changed so that brazing becomes easier.
- the sheath tube 505a is formed of stainless steel
- the material of the heat-sensitive P8 may be stainless steel.
- FIG. 28 is a schematic sectional view showing another example of the fluid heating device.
- the fluid heating device 11 k in FIG. 28 differs from the configuration of the fluid heating device 11 h in FIG. 27 in that the end face holding member 600 b is not provided.
- the heat-sensitive plate P8 is brazed to the non-heating portion L2 of the sheath heater 505 and one end of the case body portion 600. Thereby, it is possible to prevent the washing water from leaking from the joint between the end face of the case main body 600 and the heat sensitive plate P8. As a result, in the fluid heating device 11k, since the end face holding member 600b is not required, the number of parts can be reduced, and cost and assemblability can be improved.
- FIG. 29 is a schematic sectional view showing still another example of the fluid heating device
- FIG. 30 is a side view of the fluid heating device of FIG. 2-9.
- the fluid heating device 1 m shown in Fig. The difference from the fluid heating device 1 1 h is that a sheathed heater 500 m with a triangular cross section is provided instead of the tubular sheathed heater 505, and an elastic holding member P is used instead of the heat-sensitive plate P 8. 2 is provided.
- a sheath heater 505 having a triangular cross section is provided on one surface of the terminal 507 of the non-heating portion L2 of the non-heating portion L2 of the 505m.
- One mistake 5 1 8 is attached.
- the number of parts can be reduced, cost and assembly can be improved, and the heat flow #: the heating temperature of the heating device 1 lm can be accurately detected.
- FIG. 31 is a schematic cross-sectional view showing a fluid heating device 11 p according to the fourth embodiment.
- the fluid heating device 11P includes a heat transfer plate P10 and a triac element 523 instead of the elastic holding member P1 of the fluid heating device 11a shown in FIG. 4, and replaces the flexible holding member P2.
- a heat sensitive plate P 8 and a temperature fuse 12 c are provided, and a temperature sensor 12 b and a temperature sensor 5 18 are provided.
- the heat transfer plate P10 is provided so as to be in direct contact with the cleaning water supplied to the cleaning water inlet 511 in FIG.
- the heat transfer plate P10 is made of copper having high thermal conductivity.
- a triac element 523 which is a power control element of the sheathed heater 505 and a heat-generating electronic component, is fastened and fixed with a screw.
- the heat-sensitive plate P8 is provided so as to be in contact with the non-heating portion L2 of the sheathed heater 505.
- the heat sensitive plate P8 is made of copper having high thermal conductivity.
- the thermal plate P8 is provided with a thermal fuse 12c that cuts off power supply to the terminals 506 and 507 of the sheathed heater 505 when the sheathed heater 505 is heated to an abnormal temperature. ing.
- a washing water outlet 518 for detecting the temperature of the heated washing water is attached to the washing water outlet 5 1 2 of the fluid heating device 1 lp.
- the control unit 5 18 is connected to the control unit 4. Also, even if an electrical failure occurs in the thermistor 51, the electrical contacts are mechanically maintained at a predetermined temperature to prevent an abnormal rise in the temperature of the series heater 505 of the fluid heating device 11p.
- a temperature sensor 12b which is a temperature switch that is turned on and off, is provided near the washing water outlet 512.
- the control unit 4 applies electric power to the terminals 506 and 507 of the seeds 505.
- the heat of the seeds 505 is supplied to the washing water flowing through the flow path 5 10, and the washing water heated to a predetermined temperature flows out of the washing water outlet 5 12.
- the temperature of the wash water flowing out of the wash water outlet 5 12 is detected by the thermistor 5 18.
- Thermistor 518 sends the detected temperature of the washing water to the controller 4 as a signal.
- the control unit 4 receives a signal from the thermistor 5 18 and sends the signal through the triac element 5 2 3 so that the temperature of the washing water flowing out from the washing water outlet 5 12 becomes a predetermined temperature. Control power to 5.
- the power control element and the triac element 523 which is a heat-generating electronic component generate heat. Therefore, the temperature rise of the triac element 5 23 itself can be suppressed by bringing the heat sensitive plate P 8 having the triac element 5 23 fixed thereto into contact with the low-temperature washing water flowing through the cleaning water inlet 5 11.
- the water cooling effect of the triac element 523 which is a heat-generating electronic component, can be ensured, so that failure of the heat-generating electronic component attached to the heat transfer plate P10 can be prevented.
- the heat transfer plate P 10 can serve both to prevent the leakage of the cleaning water and to radiate the heat of the triac element 523.
- the speed of the washing water flowing in the spirally formed flow path 510 of the fluid heating device 111p is along the sheath heater 505 from the washing water inlet 511 to the washing water outlet 511. Therefore, the speed of the washing water becomes larger as compared with the speed of the washing water flowing linearly.
- the washing water flows in the flow path 510 in a high-speed turbulent state along the outer peripheral surface of the seed heater 505, so that the washing water is stirred, and Heat generated on the outer peripheral surface of 05 can be efficiently transmitted to the entire washing water.
- the heat transfer plate P 10 becomes a sheath heater 5 0.
- the contact with the cleaning water having a low temperature before being heated to 5 causes the heat of the triac element 5 23 to be efficiently supplied to the cleaning water via the heat transfer plate P 10.
- control unit 4 controls the power supply to the terminals 506 and 507 of the seed heater 505 based on the signal detected by the thermistor 518 so that the fluid heating device 1 p Even if the flow rate of the washing water flowing in the inside fluctuates, the washing water at a predetermined temperature can flow out from the washing water outlet 5 12.
- the fluid heating device 1 lp shown in FIG. 31 is an instantaneous fluid heating device, the cost and power consumption can be reduced compared to a hot water storage type fluid heating device.
- a temperature sensor that turns on and off the electrical contacts mechanically at a predetermined temperature near the washing water outlet 5 1 2 of the fluid heating device 1 1P Even if an electrical failure occurs in the thermistor 518, if the heating temperature of the washing water exceeds a predetermined temperature, the temperature sensor 12 The electrical contacts are opened mechanically, and the power supply to terminals 506 and 507 of the seeds 505 is cut off.
- the temperature fuse 12c is provided on the heat sensitive plate P8 on the washing water outlet 5112 side of the fluid heating device 11P, the temperature error 518 and the temperature sensor 12b are faulty. Even in the event of a failure, when the temperature of the washing water exceeds a predetermined temperature, the power supplied to the terminals 506 and 507 of the sheathed heater 505 is cut off by the temperature fuse 12c.
- the fluid heating device 11 P can release the heat of the triac element 5 23 to the cleaning water via the heat transfer plate P 10, and the temperature fuse 12 c can be released via the heat sensitive plate P 8. Since it is possible to detect abnormal heating of cleaning water and washing water, it is possible to reliably prevent the failure of the triac element 523, and to detect abnormal heating of the fluid heating device 11p.
- the power supply to terminals 506 and 507 of 505 overnight can be cut off to ensure safety.
- the heat-sensitive plate P8 and the heat-transfer plate P10 of the fluid heating device 11p are made of copper, but are not limited thereto, and may be made of any other metal. As a result, the thermal conductivity required for heat radiation of the triac element 523 and the mechanical strength required for preventing the leakage of cleaning water can be maintained.
- the heat-sensitive plate P8 and the heat-transfer plate P10 of the fluid heating device 11p are made of copper, it is possible to obtain long-term usable corrosion resistance and particularly excellent heat conductivity. Since the heat-sensitive plate P8 and the heat transfer plate P10 of the fluid heating device 11P are formed in a substantially L shape, there is no large protrusion toward the outside of the fluid heating device 11p, and the fluid heating device 11 p can be reduced in size.
- a sanitary washing device 100 using the fluid heating devices 11 a to 11 p that can be downsized and have high heat exchange efficiency. This makes it possible to squirt clean water at a comfortable temperature to the human body.
- the heating of the cleaning water is performed by using the sheathed heater 505.
- the heating is not limited to the sheathed heater, and other arbitrary heating may be performed.
- An apparatus for example, a ceramic heater or the like may be used.
- the case main body 600 corresponds to the case body
- the sheathed heater 505 corresponds to the heating element
- the flow paths 5 10, 5 2 Two , 5 2 3, 5 2 4, 5 2 7, 5 2 8, 5 2 9, 5 3 0, 5 3 1 correspond to the flow path
- the springs 5 15 a, ..., 5 15 e are spiral
- washing water inlet5 1 1 corresponds to fluid inlet and cylindrical fluid inlet
- washing water outlet 5 12 corresponds to fluid outlet and cylindrical fluid outlet
- Thermistor 518 corresponds to a temperature detector
- the control unit 4 corresponds to a control device
- the heat-sensitive plate ⁇ 8 corresponds to a heat-sensitive plate
- the heat transfer plate ⁇ 10 corresponds to a heat-transfer member.
- the triac element 523 corresponds to a heat-generating electronic component
- the nozzle portion 30 corresponds to a jetting device.
- FIG. 32 is a schematic longitudinal sectional view showing an example of a clothes washing apparatus using the fluid heating device according to the embodiment of the present invention.
- the fluid heating device used in the clothes washing device has the same configuration as the fluid heating device 11a in FIG.
- the washing tub 8100 is fixed in a clothes washing device 800.
- the inner side of the washing tub 8100 is provided with an inner tub 8108, and the inner tub 808 is provided so as to be rotatable about the vertical direction in the washing tub 810.
- a stirring blade 809 is provided below the inner tank 808.
- the stirring blade 809 is provided so as to be rotatable about a vertical direction independently of the inner tank 808.
- the shaft of the motor 811 is connected to the bearing 812 via a rotation transmission mechanism.
- the bearing 812 is selectively rotatably connected to one or both of the stirring blade 809 and the inner tank 808.
- the washing water path of the clothing washing device 800 is mainly composed of the main waterway 8 14 and the bypass 8 It is composed of 15, water absorption channel 8 2 2, hot water channel 8 19 and detergent hot water channel 8 2 1. Wash water supplied from the water supply source flows from the water supply port 8 13 into the main water channel 8 14 and is supplied to the washing tank 8 10.
- the main water channel 8 14 is provided with a switching valve 8 16 and a detergent inlet 8 20.
- One end of a bypass passage 8 15 is connected to the switching valve 8 16.
- One end of a water absorption passage 8 22 is connected to a lower portion of the washing tub 8 10.
- a water input switching valve 8 23 In the water intake passage 8 22, a water input switching valve 8 23, a pump 8 24, a fluid heating device 11 a and a water temperature detector 8 36 are sequentially inserted.
- the other end of the water suction channel 8 ′ 22 is connected to the switching valve 8 18.
- the other end of the bypass path 815 is connected to the water input switching valve 823 of the water intake path 822.
- a hot water channel 8 19 and a detergent hot water channel 8 21 are connected to the switching valve 8 18.
- FIG. 33 is a schematic cross-sectional view of the clothes washing apparatus 800 shown in FIG. As shown in FIG. 33, the washing tub 810 and the inner tub 808 of the clothes washing device 800 are
- the fluid heating device 11a and the bypass route 8I5 are provided in a corner 835 of the clothes washing device 800.
- the fluid heating device 11a since the fluid heating device 11a has a vertically long shape, the fluid heating device 11a can be vertically arranged at the corner 835 of the clothes washing device 800. Thereby, the size of the clothes washing device 800 can be reduced.
- the speed of the washing water flowing in the spirally formed flow path 5 10 of the fluid heating device 11 a varies from the washing water inlet 5 1 1 to the washing water outlet 5 1 2 It becomes larger compared to the velocity of the washing water flowing linearly along.
- the washing water flows in the flow path 5110 in a high-speed turbulent state along the outer peripheral surface of the seeds 500, so that the washing water is agitated and the washing water is stirred. Heat generated on the outer peripheral surface of 5.5 can be efficiently transmitted to the entire washing water. Therefore, it is possible to supply cleaning water at a temperature at which the detergent can be dissolved.
- FIG. 7 is a diagram showing a path of washing water when heating and supplying the washing water to the washing tub 810. The path of washing water is indicated by a thick line.
- the control unit 825 gives instructions to the switching valve 816, the switching valve 81.8, and the water input switching valve 823.
- the switching valve 816 switches the switching valve 816 in accordance with an instruction from the control unit 825 so that the washing water flows to the bypass 811.
- the water inlet switching valve 823 switches the water inlet switching valve 823 so that the washing water flows from the bypass path 815 to the water intake path 8222 in accordance with an instruction from the control unit 825.
- the switching valve 8 18 switches the switching valve 8 18 so that the washing water flows from the water intake channel 8 22 to the hot water channel 8 19 according to the instruction from the control unit 8 25.
- control unit 825 instructs the pump 824 to operate. Wash water is pumped up by the operation of the pump 82.
- the control unit 825 applies power to the seed heating unit 505 of the fluid heating device 11a.
- the washing water supplied from the water supply port 8 13 flows sequentially through the bypass path 8 15, the water suction path 8 22, the pump 8 24 and the fluid heating device 11 a, and the washing tub 8
- the cleaning water supplied from the water supply port 8 13 is heated to the optimum temperature by the fluid heating device 11 a.
- FIG. 35 is a diagram showing a path of the washing water when the washing water once supplied to the washing tub 810 is heated and supplied to the washing tub 810.
- the path of the washing water is indicated by a thick line.
- the control unit 8 25 gives an instruction to the switching valve 8 18 and the water input switching valve 8 23.
- the water input switching valve 823 switches the water input switching valve 823 so that the washing water flows from the washing tub 810 to the water intake passage 8222 in accordance with an instruction from the control unit 825.
- the switching valve 818 switches the switching valve 818 so that the washing water flows from the water intake channel 822 to the hot water channel 819 in accordance with an instruction from the control unit 825.
- control unit 825 instructs the pump 8.24 to operate. Wash water is pumped up by the operation of the pump 82.
- the control unit 825 applies power to the seed heating unit 505 of the fluid heating device 11a.
- the washing water absorbed from the washing tub 8 10 flows into the water intake passage 8 2 2 and the pump 8 It flows sequentially through 24 and the fluid heating device 11a, and is supplied again to the washing tub 810. In this case, the washing water is heated to the optimum temperature by the fluid heating device 11a. Subsequently, a specific operation of the clothes washing apparatus 800 in the case of supplying hot water with a detergent to the washing tub 8100 will be described.
- FIG. 36 is a diagram showing a path of purified water when hot water with a detergent is supplied to the washing tub 810.
- the path of the bold line is indicated by the bold line.
- the control unit 825 gives an instruction to the switching valve 816, the switching valve 818, and the water inlet switching valve 823.
- the switching valve 816 switches the switching valve 816 in accordance with an instruction from the control unit 825 so that the washing water flows to the bypass 811.
- the water input switching valve 823 switches the water input switching valve 823 so that the washing water flows from the bypass path 815 to the water intake path 8222 in accordance with an instruction from the control unit 825.
- the switching valve 8 18 switches the switching valve 8 18 so that the washing water flows from the water suction channel 8 22 to the detergent hot water channel 8 21 in accordance with an instruction from the control unit 8 25.
- control unit 825 instructs the pump 824 to operate. Wash water is pumped up by the operation of the pump 82.
- the control unit 825 applies electric power to the seed heater 505 of the fluid heating device 11a.
- the washing water supplied from the water supply port 8 13 is sequentially passed through the bypass path 8 15, the water intake path 8 22, the pump 8 24, the fluid heating device 11 a and the detergent input port 8 20.
- the stream is fed to the washing tub 8110.
- the cleaning water supplied from the water supply port 813 is heated to an optimum temperature by the fluid heating device, and the detergent is dissolved by the heated cleaning liquid.
- FIG. 37 is a diagram showing the path of the washing water when supplying purified water to the washing tub 810 in the clothes washing apparatus 800.
- the flow of washing water is indicated by a thick line.
- the control unit 8 25 gives an instruction to the switching valve 8 16.
- the switching valve 8 16 switches the switching valve 8 16 so that the washing water flows to the main water channel 8 14 in accordance with an instruction from the control unit 8 25.
- the washing water supplied from the water supply port 8 13 The water flows sequentially through the inlet 820 and is supplied to the washing tub 810. In this case, the detergent is dissolved by the washing water supplied from the water supply port 8 13.
- FIG. 38 is a schematic cross-sectional view showing another example of the fluid heating device used in the clothes washing device 800.
- the fluid heating device 11Q shown in FIG. 38 is a heating device using a ceramic heater.
- the fluid heating device 11Q shown in Fig. 38 mainly consists of a cylindrical ceramic heater 837, a pair of electrode terminals 842, a spring 8444, a drain plug 843, a water inlet 8440 and It is composed of discharge ports 8 4 1.
- a spring 844 is spirally wound around the outer peripheral surface of the cylindrical ceramic heater 837, similarly to the outer peripheral surface of the sheath heater 505 in FIG.
- washing water is supplied from the water inlet 840.
- a predetermined power is supplied from the control unit 825 to the pair of electrode terminals 842.
- the cylindrical ceramic heater 837 is heated.
- the washing water supplied from the water inlet 8400 is heated while flowing downward along the inside of the cylindrical ceramic heater 837, and the ceramic heater 813 from below the fluid heating device 11a is heated. It is heated while flowing upward outside the.
- the ceramic heater 83 is formed by the spiral flow path 510 formed by the spring 844.
- the heat of 7 is efficiently supplied to the washing water.
- the heated cleaning water is discharged from the discharge port 841.
- the upper limit of the electric power that can be supplied to the household clothing washing device 800 is 1500 W due to the limitation due to the breaking force of the distribution board. Therefore, in consideration of the electric power used for the motor 811 built in the clothes washing device 800, the electric power that can be used for the fluid heating device 11a is limited. Therefore, in the clothes washing apparatus 800 in the sixth embodiment, the control unit 825 sets the sum of the power of the fluid heating device 11a and the power of the motor 811 to a predetermined value (for example, 130 0 W).
- the electric power supplied to the fluid heating device 11a is set to the maximum value (for example, 1300 W) and the motor 8 11 is rotating, for example, the temperature of If it is low, the power obtained by subtracting the power of the motor 811 from the predetermined value is set as the power to be supplied to the fluid heating device 11a.
- control unit 8′25 controls the pump 8 so that the water temperature detected by a thermostat (not shown) provided downstream of the fluid heating device 11a by the appropriate temperature control function becomes a temperature suitable for washing. Control the flow rate of 24. .
- the controller 825 controls the power supplied to the fluid heating device 11a to be reduced when the temperature is higher than the set temperature even when the flow rate control of the pump 824 is performed.
- the detergent is not easily dissolved in the washing water.
- the cleaning water supplied from the water supply port 813 via the bypass path 815 and the water suction path 8222 is heated by the fluid heating device 11a, so that the detergent is injected.
- the detergent put into the inlet 8200 can be easily dissolved in the washing water.
- the detergent By using the washing water in which the detergent is dissolved, the detergent can be permeated into the object to be washed (clothing) and the washing can be carried out without damaging the fabric of the clothes. Further, since the washing water is instantaneously heated, there is no need to heat the washing water unnecessarily, and it is possible to realize low cost and reduced power consumption.
- the cleaning water flows on the outer peripheral surface of the sheathed heater 505 by using the fluid heating device 11a, all the heat released from the sheathed heater 505 can be supplied to the cleaning water. Therefore, the heat from 505 can be efficiently supplied to the washing water. As a result, it is possible to realize a clothes washing device 800 using the fluid heating device 11a that can be reduced in size and has high heat exchange efficiency. Also, in addition to dissolving the detergent, heated washing water is effective in facilitating the decomposition of clothing stains or oils. Therefore, the washing time is short, and washing with high washing performance can be performed.
- the inside of the washing tub 810 can be heated and disinfected, and the effect of sterilization or disinfection can be obtained.
- the temperature of the washing water heated by the fluid heating device 11a is
- the lid of 800 is closed.
- the fluid heating device is applied to the vertically disposed clothes washing device 800 has been described.
- the present invention is not limited to this, and the fluid heating device can also be applied to other types of clothes washing devices.
- the fluid heating device can be applied to a drum-type clothes washing device that is placed horizontally or diagonally.
- the fluid heating device is not limited to this.
- the case main body 600 corresponds to the case body
- the series heater 505 corresponds to the heating element
- the flow path 51 1 0, 5 2 2, 5 2 3, 5 2 4, 5 2 7, 5 2 8, 5 2 9, 5 3 0, 5 3 1 correspond to the flow path
- springs 5 1 5 a, to 5 1 5 e corresponds to the helical spring, turbulence generating mechanism and helical member
- washing water inlet 5 11 corresponds to fluid inlet and cylindrical fluid inlet
- control unit 4 corresponds to a control device
- heat-sensitive plate P8 corresponds to a heat-sensitive plate.
- Corresponding plate P 1 0 is the Netsuden'netsu member -
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- Engineering & Computer Science (AREA)
- Public Health (AREA)
- Health & Medical Sciences (AREA)
- Thermal Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Molecular Biology (AREA)
- Epidemiology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Water Supply & Treatment (AREA)
- Textile Engineering (AREA)
- Bidet-Like Cleaning Device And Other Flush Toilet Accessories (AREA)
- Instantaneous Water Boilers, Portable Hot-Water Supply Apparatuses, And Control Of Portable Hot-Water Supply Apparatuses (AREA)
Abstract
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US10/566,977 US7372002B2 (en) | 2003-08-05 | 2004-08-03 | Fluid heating device and cleaning device using the same |
EP04771404.3A EP1669688B1 (en) | 2003-08-05 | 2004-08-03 | Fluid heating device and cleaning device using the same |
Applications Claiming Priority (10)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2003-286650 | 2003-08-05 | ||
JP2003286650A JP4474867B2 (ja) | 2003-08-05 | 2003-08-05 | 人体局部洗浄装置とそれを備えたトイレ装置 |
JP2003325805A JP2005090872A (ja) | 2003-09-18 | 2003-09-18 | 流体加熱装置 |
JP2003-325805 | 2003-09-18 | ||
JP2003356069A JP2005120672A (ja) | 2003-10-16 | 2003-10-16 | 衛生洗浄装置 |
JP2003-356069 | 2003-10-16 | ||
JP2003-410012 | 2003-12-09 | ||
JP2003410012A JP4423955B2 (ja) | 2003-12-09 | 2003-12-09 | 熱交換器とそれを備えた衛生洗浄装置 |
JP2004-155815 | 2004-05-26 | ||
JP2004155815A JP4293057B2 (ja) | 2004-05-26 | 2004-05-26 | 流体加熱装置およびそれを備えた衛生洗浄装置 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2005015092A1 true WO2005015092A1 (ja) | 2005-02-17 |
Family
ID=34139869
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2004/011417 WO2005015092A1 (ja) | 2003-08-05 | 2004-08-03 | 流体加熱装置およびそれを用いた洗浄装置 |
Country Status (4)
Country | Link |
---|---|
US (1) | US7372002B2 (ja) |
EP (1) | EP1669688B1 (ja) |
KR (1) | KR100788084B1 (ja) |
WO (1) | WO2005015092A1 (ja) |
Cited By (1)
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CN111044291A (zh) * | 2019-12-10 | 2020-04-21 | 陕西柴油机重工有限公司 | 一种大中型柴油机试验台滑油系统的冲油方法和装置 |
Also Published As
Publication number | Publication date |
---|---|
EP1669688A1 (en) | 2006-06-14 |
KR20060031877A (ko) | 2006-04-13 |
EP1669688B1 (en) | 2015-09-30 |
EP1669688A4 (en) | 2014-04-30 |
KR100788084B1 (ko) | 2007-12-21 |
US7372002B2 (en) | 2008-05-13 |
US20060289455A1 (en) | 2006-12-28 |
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