JP2006064327A5 - - Google Patents

Description

Fluid heating device and cleaning device provided with the same

  The present invention relates to a fluid heating device for heating a fluid and a cleaning device including the fluid heating device.

  Conventionally, in this type of fluid heating apparatus, a float 3 having a shape capable of preventing malfunction due to the presence of foreign matter is attached to a float switch 2 attached to an upper portion of a hot water tank 1 which is a fluid heating container. Moves up and down depending on the water level in the hot water tank 1. When the water level reaches a predetermined height, the float switch 2 is turned on, the control circuit 4 starts energizing the hot water heater 5, and the thermistor 6 turns on the hot water tank 1. It is set as the structure which detects and controls so that the water temperature of this may become preset temperature (for example, patent document 1).

FIG. 9 shows a conventional fluid heating apparatus described in Patent Document 1. In FIG. As shown in FIG. 9, it is composed of a fluid heating container (warm water tank) 1, a float switch 2, a float 3, a control circuit 4, a warm water heater (seeds heater) 5, a temperature sensor (thermistor) 6, and the like. ing.
JP 2001-52578 A

  However, in the conventional configuration, even when there is no water in the hot water tank 1, the float 3 moves and the float switch 2 is turned on when the float switch 2 fails or depending on the posture of the hot water tank 1, and the water level is predetermined. There is a problem that the hot water heater 5 continues to be energized until the thermistor 6 detects the set temperature by the control circuit 4 by mistakenly recognizing that there is a water level, the hot water heater overheats, and the hot water tank 1 becomes empty and burns out. there were.

  The present invention solves the above-described conventional problems, and an object thereof is to prevent an accident due to overheating of a heating element such as the hot water heater regardless of the posture of the fluid heating container.

  In order to solve the above-mentioned conventional problems, a fluid heating apparatus of the present invention includes a fluid heating container having a fluid inlet and outlet, a heater provided in the fluid heating container, and a heating element of the heater. And an energization interrupting means provided in thermal contact with the energization terminal joined.

  The fluid heating device according to the present invention includes a heater provided in the fluid heating container and a current-carrying terminal that is in thermal contact with the current-carrying terminal joined to the heating element of the heater. Since the temperature of the body conducts and further conducts to the current-carrying-off means thermally brought into contact with the current-carrying terminal, regardless of the posture of the fluid heating container, It is possible to cut off the energization to prevent accidents caused by overheating.

  According to a first aspect of the present invention, a fluid heating container having a fluid inlet and an outlet, a heater provided in the fluid heating container, and an energizing terminal joined to a heating element of the heater are brought into thermal contact. By providing the current-carrying means, the temperature of the heating element is conducted to the current-carrying terminal, and further to the current-carrying means that is thermally contacted with the current-carrying terminal, so regardless of the posture of the fluid heating container, Accidents due to overheating of the heating element can be prevented.

  According to a second aspect of the present invention, in the fluid heating apparatus of the first aspect of the invention, the energization interrupting means is a thermistor, so that the temperature of the heating element is conducted to the energizing terminal, and is further brought into thermal contact with the energizing terminal. Therefore, an accident due to overheating of the heating element can be prevented regardless of the posture of the fluid heating container.

  According to a third aspect of the invention, in particular, in the fluid heating device of the first aspect, the energization cutoff means is a thermostat, so that the temperature of the heating element is conducted to the energization terminal, and the temperature is conducted to the thermostat to generate heat. When the temperature of the body exceeds a predetermined temperature, the thermostat is activated to cut off the power supply to the heating element, and it is possible to prevent an accident caused by emptying of the fluid heating container regardless of the posture of the fluid heating container.

  In the invention according to claim 4, in particular, in the fluid heating device of the first invention, the energization interruption means is a thermal fuse, so that the temperature of the heating element is conducted to the energization terminal, and the temperature is the thermal fuse. When the temperature of the heating element exceeds a predetermined temperature by conduction, the thermal fuse can be activated to cut off the power supply to the heating element, regardless of the posture of the fluid heating container. Accidents can be prevented.

The invention according to claim 5 is the fluid heating device according to the first aspect of the invention, in which the energization cutoff means is provided in at least two stages by providing different cutoff temperatures or by performing different cutoff currents. It is characterized by that. For example, since the energization interruption means is a thermostat and a thermal fuse, the temperature of the heating element is conducted to the energization terminal, and the temperature of the heating element is conducted to the thermostat and the thermal fuse so that the temperature of the heating element exceeds a predetermined temperature. In this case, the two-stage structure of the thermostat and the thermal fuse can cut off the power supply to the heating element, and the accident due to the emptying of the fluid heating container can be more strictly prevented regardless of the posture of the fluid heating container.

  The invention described in claim 6 is particularly configured such that the current-carrying-off means of the fluid heating device according to any one of claims 1 to 5 is detachably attached to the current-carrying terminal via a metal member. Thus, when exchanging the energization interrupting means, it is possible to easily attach and detach the energizing terminal.

The invention according to claim 7 is a sanitary washing device for ejecting wash water supplied from a water supply source to a portion to be washed of a human body, and in particular, the fluid according to any one of claims 1 to 6. By a sanitary washing device comprising a heating device and a jetting means for jetting washing water heated by the fluid heating device to the human body, it is possible to reliably detect whether the temperature of the heating element is too high or too low, for example, It is possible to provide a sanitary washing device with higher safety such as shutting off the power supply to the heating element in the event of an abnormality.

Invention of Claim 8 is a washing | cleaning apparatus which wash | cleans clothing or tableware provided with the fluid heating apparatus in any one of Claims 1-6 , Comprising: Especially the temperature of a heat generating body rises too much, or By being able to reliably detect the excessively lowering, for example, it is possible to provide a cleaning device with higher safety such as shutting off the power supply to the heating element when there is an abnormality.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. In addition, this invention is not limited by this embodiment.

(Embodiment 1)
FIG. 1 shows a configuration diagram of a fluid heating apparatus according to Embodiment 1 of the present invention.

  In FIG. 1, reference numeral 11 denotes a substantially cylindrical fluid heating container having a fluid inlet 12 and an outlet 13. In the fluid heating container 11, a sheath is a heater for heating the fluid to a predetermined temperature. A heater 14 is attached so as to penetrate the heater container 11. The sheathed heater 14 in FIG. 1 has a rod shape with a circular cross section. In this embodiment, a copper tube sheath having good thermal conductivity is used. However, depending on the type of fluid, a sheath such as stainless steel having high corrosion resistance may be used.

  The sheathed heater 14 is divided into a heat generating portion 15 having a heater wire such as nickel chrome inside the sheath and a non-heat generating portion 16 (shaded portion) at the sheath end. The non-heat generating portion 16 (shaded portion) has an electrode energizing terminal therein, and the electrode energizing terminal has little electric resistance, and therefore hardly generates heat even when energized. The periphery of the heater wire between the electrode energizing terminals is filled with magnesium oxide powder, which is an insulator, at high density, and the heat generated by the heater wire is transmitted to the sheath through this magnesium oxide, and the fluid flowing on the sheath surface is heated. It is a configuration.

  Reference numerals 19a, 19b, 19c and 19d are O-rings as holding members for preventing the fluid flowing in the fluid heating container 11 from leaking to the outside. First, the O-rings 19a and 19b that are holding members on the inlet 12 side are fixed by the fluid heating container 11 and the pressing plate 20 and the lid 21a that are heat transfer members, so that fluid does not leak out of the fluid heating container 11. It is sealed like this. On the outlet 13 side, the O-rings 19c and 19d, which are holding members, are fixed by the fluid heating container 11, the holding plate 17 which is a heat transfer member, and the lid 21b, so that fluid leaks out of the fluid heating container 11. It is sealed so that there is no.

  The O-rings 19b and 19d have both the role of external fluid sealing for preventing the fluid from leaking out of the fluid heating container 11 and the role of holding the sheathed heater 14 as a heater. That is, the O-ring 19b is sandwiched between the pressing plate 20 and the lid 21a and comes into contact with the outer periphery of the non-heat generating portion 16 at one end of the sheathed heater 14, and the O-ring 19d is sandwiched between the pressing plate 17 and the lid 21b. In this configuration, the other end of the heater 14 is in contact with the outer periphery of the non-heating portion 16.

  In addition, the holding plate 20 which is a heat transfer member on the inlet 12 side is fastened and fixed with screws so that the power control element of the sheathed heater 14 is in sufficient contact with the heat generating electronic component TRIAC 23. . The presser plate 17 that is a heat transfer member on the outlet 13 side is in sufficient thermal contact with a temperature fuse 18 that is an overheat prevention means that cuts off the power to the sheathed heater 14 when an abnormal temperature overheats. It is fixed.

  A thermistor 24 is attached to the outlet 13 of the fluid heating container 11 and is a power interruption means for detecting the temperature of the fluid. The signal of the thermistor 24 that is the energization interrupting means is connected to the controller 22 that is the control means. A temperature switch in which electrical contacts are mechanically turned on and off at a predetermined temperature so that the heating temperature of the fluid can be prevented from becoming a dangerous temperature even when an electrical failure occurs in the thermistor 24 or the control means 22. A thermostat 25 is attached.

  The sheathed heater 14 has a heater wire inside the sheath, which is a heating element 26, and an energizing terminal 27 joined to the heater wire 26 by spot welding, and a metal member 28 is spot-welded to the energizing terminal 27. Are joined together. The temperature fuse 29, which is a current-carrying means, is attached to the metal member 28 with screws 30 and a fixture 31 so as to be in thermal contact. It is to be noted that the thermal fuse 29, which is a current-carrying-off means, can be freely detached and replaced by simply loosening the screw 30. Although not shown in the figure, the outer periphery of the thermal fuse 29 is covered with an insulating coating such as an insulating coating film or polyimide resin, and the energizing terminal 27, the metal member 28, and the fixture 31 are electrically connected. Insulated.

  In addition, a dotted line shows an electric wire, and a part is demonstrated, and it connects to the control means via the temperature fuse 18 and the thermostat 25 via the temperature fuse 29 which is an electricity interruption means from the electricity supply terminal 27. FIG.

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

  First, when a fluid flows in from the inlet 12, the control means 22 starts energizing the sheathed heater 14. Then, heat is exchanged between the fluid flowing between the sheathed heater 14 and the fluid heating container 11 and the sheathed heater 14, and the fluid heated to a predetermined temperature flows out from the outlet 13. At this time, the temperature of the fluid flowing out from the outlet 13 is sent to the control means 22 from the thermistor 24 which is a temperature detection means, and the control means 22 passes through the triac 23 according to the temperature signal from the thermistor 24. While controlling the power supplied to the sheathed heater 14, the temperature of the fluid flowing out from the outlet 13 is controlled to be a predetermined temperature.

  In this way, when the power of the sheathed heater 14 is adjusted by the triac 23, the triac 23, which is a heat generating electronic component, also generates heat by the power control element, so that the triac 23 is damaged by heat unless the heat is cooled. That is, the heater 14 provided so as to penetrate the fluid heating container 11 having the fluid inlet 12 and the outlet 13 as in the present embodiment, and the heat transfer member that is in contact with the fluid at the penetration. With the configuration in which the triac 23, which is a heat generating electronic component, is attached in thermal contact with the presser plate 20, the heat of the triac 23 is transmitted to the presser plate 20, which is a heat transfer member, and is radiated to the fluid. Therefore, the water cooling effect of the triac 23 which is a heat generating electronic component can be secured, and damage to the heat generating electronic component attached to the holding plate 20 which is a heat transfer member can be prevented. In addition, the holding plate 20 that is a heat transfer member can be used for both the prevention of fluid leakage and the heat dissipation of the heat generating electronic component 20.

  Moreover, by providing the holding plate 20 that is a heat transfer member with the triac 23 attached to the inlet 12 of the fluid heating container 11, the fluid at a low temperature before being heated by the sheathed heater 14 that is a heater. That is, since water comes into contact with the holding plate 20 that is the heat transfer member and the temperature difference between the triac 23 and the water is larger, the heat of the triac 23 that is the heat generating electronic component is dissipated from the holding plate 20 to the water that is more fluid. This makes it easier to cool the triac 23 more effectively.

  As described above, the control means 22 controls the heating amount of the sheathed heater 14 based on the temperature signal detected by the thermistor 18, so that even if the flow rate flowing through the fluid heating container 11 changes, the predetermined temperature This fluid can be obtained from the outlet 13. The instantaneous fluid heater that controls the fluid to a predetermined temperature in a short time by the required flow rate is warmer than the hot water storage fluid heater that heats and retains the fluid. Because it can reduce heat dissipation loss at the time, energy saving is high.

  Further, a thermostat 25 that is a temperature switch that mechanically cuts off current at a predetermined temperature is mounted near the outlet 13 of the fluid heating container 11, so that even if there is something abnormal, the thermistor 24, the control means 22, etc. Even when an electrical failure occurs, the electrical contact of the thermostat 25 is mechanically opened when the heating temperature of the fluid exceeds a predetermined temperature, and the current supply to the sheathed heater 14 as a heater is interrupted. Can prevent dangerous temperatures.

  Furthermore, since the temperature fuse 18 which is an overheat prevention means is attached to the holding plate 17 on the outlet 13 side of the fluid heating container 11, the thermistor 24 and the control means 22 which cannot occur first fail. Even when it is assumed that all of the thermostats 25 have failed on the unsafe side, the thermal fuse 18 cuts off the electrical continuity when the temperature of the fluid exceeds a predetermined temperature.

  The above is the operation and action when there is water in the fluid heating container 11, but if there is no water in the fluid heating container 11 due to something abnormal, the heating element in the sheathed heater 14 which is a heater. The heater wire 26 is energized, the heater wire 26 generates heat, and the temperature of the heater wire 26 itself rises. In this case, since there is no water that takes heat away from the surface of the sheathed heater 14, the temperature of the heater wire 26 in the inside rises rapidly as compared with the case where there is water in the normal fluid heating vessel 11. The heater wire 26 is joined to the energizing terminal 27, and the energizing terminal 27 and the thermal fuse 29, which is an energizing interruption means, are configured to be in thermal contact with each other via the metal member 28. The temperature 26 is transmitted to a thermal fuse 29 which is an energization interruption means.

  Therefore, when the temperature of the heater wire 26 that is a heating element rises too much, the temperature fuse 29 that is an energization interrupting means is blown, and the energization of the heater wire 26 is stopped, so that the sheathed heater 14 that is a heater is heated. Accidents such as burning of the fluid overheating container 11 can be prevented in advance.

  As described above, the heater 14 provided in the fluid heating container 11 and the current-carrying terminal 27 joined to the heating element 26 of the heater 14 are brought into thermal contact with the current-carrying means 29. Thus, the temperature of the heating element 26 is conducted to the energizing terminal 27 and further conducted to the energization blocking means 29 that is in thermal contact with the energizing terminal 27, so that the heating element regardless of the posture of the fluid heating container 11. When the temperature of the heater 26 rises too much, the power supply to the heating element 26 is cut off, and an accident due to overheating can be prevented.

  Further, in the fluid heating apparatus of FIG. 1, the energization interruption means is the thermal fuse 29, so that the temperature of the heater wire 26, which is a heating element, is conducted to the energization terminal 27, and the temperature is conducted to the thermal fuse 29. When the temperature of the heater wire 26, which is a heating element, exceeds a predetermined temperature, the thermal fuse 29 is blown to cut off the power supply to the heater wire 26, which is a heating element, and the fluid heating container 11 is in a horizontal state. It is possible to prevent an accident due to the air heating of the fluid heating container 11 regardless of the posture even in the vertical state.

(Embodiment 2)
FIG. 2 shows a configuration diagram of a fluid heating apparatus according to Embodiment 2 of the present invention. The second embodiment is different from the fluid heating device according to the first embodiment in that the energization interrupting means is not the thermal fuse 29 but the thermostat 32. For example, the sheathed heater 14 has a heater wire inside the sheath, which is a heating element 26, and a current-carrying terminal 27 joined to the heater wire 26 by spot welding, as in the first embodiment. The member 28 is joined by spot welding. And the thermostat 32 which is an electricity supply interruption | blocking means is mounted | worn with the screw 30 so that it may contact the metal member 28 thermally. The thermostat 32, which is a current-carrying-off means, can be freely detached and replaced by simply loosening the screw 30. The same components as those in the first embodiment are denoted by the same reference numerals and the description thereof is omitted.

  In the above configuration, the operation and action when water is present in the fluid heating container 11 are the same as those in the first embodiment. If there is no water in the fluid heating container 11 due to something abnormal, the heater wire 26 which is a heating element in the sheathed heater 14 which is a heater is energized, the heater wire 26 generates heat, and the temperature of the heater wire 26 itself. Rises. In this case, since there is no water that takes heat away from the surface of the sheathed heater 14, the temperature of the heater wire 26 in the inside rises rapidly as compared with the case where there is water in the normal fluid heating vessel 11. The heater wire 26 is joined to the energizing terminal 27, and the energizing terminal 27 and the thermostat 32 which is an energizing interruption means are configured to be in thermal contact with each other via the metal member 28. Is transmitted to a thermostat 32 which is an energization interruption means.

  Therefore, when the temperature of the heater wire 26 that is a heating element rises too much, the electrical contacts of the thermostat 32 that is an energization interruption means are separated and the energization of the heater wire 26 is stopped. Accidents such as burning of the fluid superheated container 11 due to heating can be prevented in advance.

  As described above, the second embodiment is also brought into thermal contact with the heater 14 provided in the fluid heating container 11 and the energizing terminal 27 joined to the heating element 26 of the heater 14 as in the first embodiment. In this configuration, the temperature of the heating element 26 is conducted to the energization terminal 27 and further conducted to the energization cutoff means 29 that is in thermal contact with the energization terminal 27. Regardless of the posture of the heating container 11, when the temperature of the heating element 26 rises too much, the energization to the heating element 26 can be cut off and an accident due to overheating can be prevented.

  Further, the energization cutoff means is the thermostat 32, so that the temperature of the heating element 26 is conducted to the energizing terminal 27, and the temperature of the heating element 26 exceeds the predetermined temperature by conducting the temperature to the thermostat 32. The thermostat 32 can be operated to cut off the energization of the heating element 26, so that an accident caused by emptying of the fluid heating container 11 can be prevented regardless of the posture of the fluid heating container 11.

(Embodiment 3)
FIG. 3 shows a configuration diagram of a fluid heating apparatus according to Embodiment 3 of the present invention. The third embodiment is different from the fluid heating device according to the first embodiment in that a thermal fuse 29 and a thermostat 32 are provided as current-carrying-off means. For example, the sheathed heater 14 has a heater wire inside the sheath, which is a heating element 26, and a current-carrying terminal 27 joined to the heater wire 26 by spot welding, as in the first embodiment. The member 28 is joined by spot welding. The metal member 28 is mounted with screws 30 so that the thermal fuse 29 and the thermostat 32, which are current-carrying means, are in thermal contact with each other. The temperature fuse 29 and the thermostat 32, which are current-carrying-off means, can be detached and replaced by simply loosening the screws 30. The same components as those in the first embodiment are denoted by the same reference numerals and the description thereof is omitted.

  In the above configuration, the operation and action when water is present in the fluid heating container 11 are the same as those in the first embodiment. If there is no water in the fluid heating container 11 due to something abnormal, the heater wire 26 which is a heating element in the sheathed heater 14 which is a heater is energized, the heater wire 26 generates heat, and the temperature of the heater wire 26 itself. Rises. In this case, since there is no water that takes heat away from the surface of the sheathed heater 14, the temperature of the heater wire 26 in the inside rises rapidly as compared with the case where there is water in the normal fluid heating vessel 11. The heater wire 26 is joined to the energizing terminal 27, and the energizing terminal 27, the thermal fuse 29 serving as the energizing interruption means, and the thermostat 32 are configured to be in thermal contact with each other via the metal member 28. The temperature of the heater wire 26 is transmitted to a thermal fuse 29 and a thermostat 32 which are means for interrupting energization. The operating temperature at which the thermostat 32 is turned off is selected and installed at a temperature lower than the operating temperature at which the thermal fuse 29 is turned off. For example, the operating temperature of the thermostat 32 is 60 ° C., and the temperature fuse 29 is 70 ° C.

  Therefore, when the temperature of the heater wire 26, which is a heating element, rises too much, first, the electrical contacts of the thermostat 32, which is a power interruption means, are separated from each other and the energization of the heater wire 26 is stopped. If the temperature of the energizing terminal 27 becomes an abnormal temperature higher than the temperature when only the thermostat 32 is operated and the energization to the heater wire 26 is stopped, the temperature fuse 29 is also blown. That is, by providing the thermostat 32 and the thermal fuse 29 as the energization interrupting means, the temperature of the heater wire 26 as a heating element is conducted to the energization terminal 27, and the temperature is conducted to the thermostat 32 and the thermal fuse 29. When the temperature of the heating element 26 exceeds a predetermined temperature, the two-stage structure of the thermostat 32 and the temperature fuse 29 can cut off the energization to the heater wire 26 that is the heating element, regardless of the posture of the fluid heating container 11. Accidents caused by the air heating of the fluid heating container 11 can be more strictly prevented.

  In the above description, the operating temperature at which the thermostat 32 is turned off is set lower than the operating temperature at which the thermal fuse 29 is turned off. However, even if the operating temperature is almost the same, the double safety effect can be obtained similarly. Can do. For example, even when one of the thermostat 32 and the thermal fuse 29 does not operate due to some abnormality, the other operates to cut off the energization of the heater wire 26, and the double safety effects are the same. Can get to.

  As described above, in the fluid heating apparatus of the third embodiment, the temperature of the heating element 26 is conducted to the energizing terminal 27 by using the thermostat 32 and the temperature fuse 29 as the energization interruption means, and the temperature is the same as that of the thermostat 32 and the temperature. When the temperature of the heating element 26 exceeds a predetermined temperature by being conducted to the fuse 29, the energization to the heating element 26 can be cut off by the two-stage structure of the thermostat 32 and the thermal fuse 29, and the relationship with the posture of the fluid heating container 11 is concerned. In addition, accidents such as burning of the fluid superheated container 11 due to heating of the sheathed heater 14 as a heater can be prevented in advance.

(Embodiment 4)
FIG. 4 shows a configuration diagram of a fluid heating apparatus according to Embodiment 4 of the present invention. The fourth embodiment is different from the fluid heating device of the first embodiment in that the thermistor 33 and the control means 22 are used as the current-carrying-off means. For example, the sheathed heater 14 has a heater wire inside the sheath, which is a heating element 26, and a current-carrying terminal 27 joined to the heater wire 26 by spot welding, as in the first embodiment. The member 28 is joined by spot welding. The thermistor 33 is attached to the metal member 28 with screws 30 so as to be in thermal contact therewith. The same components as those in the first embodiment are denoted by the same reference numerals and the description thereof is omitted.

  In the above configuration, the operation and action when water is present in the fluid heating container 11 are the same as those in the first embodiment. If there is no water in the fluid heating container 11 due to something abnormal, the heater wire 26 which is a heating element in the sheathed heater 14 which is a heater is energized, the heater wire 26 generates heat, and the temperature of the heater wire 26 itself. Rises. In this case, since there is no water that takes heat away from the surface of the sheathed heater 14, the temperature of the heater wire 26 in the inside rises rapidly as compared with the case where there is water in the normal fluid heating vessel 11. The heater wire 26 is joined to the energizing terminal 27, and the energizing terminal 27 and the thermistor 33 are in thermal contact with each other via the metal member 28. Is transmitted to. When the thermistor 33 reaches a predetermined temperature or higher, the control means 22 acts to stop and cut off the energization of the heater wire 26.

  That is, when the temperature of the heater wire 26 that is a heating element rises too much, first, power supply to the heater wire 26 is stopped by the thermistor 33 that is a power interruption means and the control means 22, regardless of the posture of the fluid heating container 11. Accidents such as burning of the fluid overheating container 11 due to overheating of the sheathed heater 14 that is a heater can be prevented in advance.

  In any of the fluid heating devices according to the first to fourth embodiments, the energization cutoff means is detachably attached to the energization terminal 27 via the metal member 28, so that the energization cutoff means is replaced. When doing so, it can be detached from the energizing terminal 27 and the work can be simplified. In particular, the power cut-off means can be easily and reliably operated with a single screwdriver when replacing the power cut-off means by fastening the fixture 31 surrounding the outer periphery with a metal member 28 joined to the current supply terminal 27 with a screw 30. .

  Moreover, by using the copper member as the metal member 28 that is in contact with the energization interrupting means, the abnormal temperature of the heating element 26 can be detected more reliably with excellent thermal conductivity.

  Further, since the heater 14 of the fluid heating device 11 is a sheathed heater, the configuration is such that the energizing terminal 27 is joined to the heating element 26 that is a heater wire, and the temperature of the heating element 26 is conducted to the energizing terminal 27. For example, it can be easily and reasonably formed by a conventional manufacturing method such as general electric spot welding, and is easy to produce at low cost.

  Further, the heat transfer members 17 and 20 are provided on both the inlet 12 side and the outlet 13 side of the fluid heating container 11, the heat generating electronic component 23 is attached to the inlet 12 side, and an overtemperature preventing means is provided on the outlet 13 side. The heat fuse electronic component 23 is easily dissipated to the fluid via the heat transfer member 20 and the heat generated electronic component 20 can be surely prevented from being damaged and heated by the heater 14. In the event of an abnormality such as when the fluid temperature becomes high temperature overheating, a high temperature is transmitted to the temperature fuse 18 which is an overheat prevention means via the heat transfer member 17 on the outlet 13 side, and the heater 14 is energized. Can be cut off to ensure safety.

  In addition, the heat transfer member 20 of the fluid heating device also serves as a holding plate 19 for fixing the holding members 19a and 19b for holding the heater 11 and externally sealing the fluid. Since it can serve a plurality of functions for prevention and heat dissipation of the heat generating electronic component 23, the number of components can be reduced.

  Further, the heat transfer member 20 of the fluid heating device is made of metal, and it is possible to ensure the thermal conductivity necessary for heat dissipation of the heat generating electronic component 23 and the mechanical strength necessary for preventing fluid leakage.

  In addition, since the heat transfer member 20 of the fluid heating device is a copper plate, it is possible to ensure the heat dissipation performance of the heat generating electronic component 23 due to the corrosion resistance that can be used for a long time by touching the water fluid and the particularly excellent thermal conductivity.

  Further, the heater 14 of the fluid heating device is a rod-shaped heater having a circular cross section, so that the shape of the seal member 19b for preventing external leakage of fluid can be made into a simple annular shape, and can be easily achieved by an O-ring or the like. This makes it possible to achieve a reliable seal configuration and can be easily and inexpensively assembled.

  Moreover, since the heater 14 of the fluid heating device is a sheathed heater, it can be used in water without worrying about strong mechanical strength, and it is made of rubber that prevents the fluid from leaking to the non-heat generating portion 16 of the sheathed heater. The seal members 19b and 19d can be used in contact with each other, and an inexpensive and reliable seal configuration can be achieved.

  In the above embodiment, the heater 14 is described as an example of a sheathed heater. However, the present invention is not limited to a sheathed heater. For example, the same effect can be obtained when the heater 14 of a fluid heating device is a ceramic heater. Obtainable. Since the heater 14 of the fluid heating device is a ceramic heater, the heat capacity of the ceramic heater itself is small and the fluid can be heated quickly, and a non-heating portion of the ceramic heater is in contact with a rubber seal member that prevents external leakage of the fluid. It can be used at low cost, and a cheap and reliable seal configuration can be achieved.

(Embodiment 5)
5-8 is a block diagram of the various washing | cleaning apparatus which shows Embodiment 5 using the fluid heating apparatus in any one of Embodiment 1-4, FIG. 5 is a sanitary washing apparatus, FIG.6 and FIG.7. Is a washing and washing apparatus, and FIG. 8 is a dish washing apparatus.

  In FIG. 5, a heated toilet seat 37 and a sanitary washing device body 38 are installed on the toilet bowl 36. The sanitary washing device main body 38 is provided with a fluid heating device 39, and the heat-exchanged hot water is ejected from the washing nozzle 40 to wash the local part of the human body 41. And in the sanitary washing apparatus main body, the cutoff valve 42, the flow control apparatus 43, and the water supply pipe 44 connected to water supply sources, such as a water supply, are provided as main components. Other parts such as the control board are omitted.

  In the sanitary washing apparatus configured as described above, even when empty baking or the like occurs due to fluid supply abnormality or the like, fluid that has detected safety and stopped heat supply to the heater 14 to improve safety By using the heating device 39, a highly safe device can be provided, and a compact and compact sanitary washing device can be obtained. For example, it is possible to provide a sanitary washing device with higher safety such as shutting off the power supply to the heating element 26 in an abnormal state by reliably detecting whether the temperature of the heater wire 26 that is a heating element is too high or too low. it can.

  As described above, in the present embodiment, the fluid heating device according to any one of claims 1 to 9 and the ejection means for ejecting the cleaning water heated by the fluid heating device to the portion to be cleaned are provided. This makes it possible to detect abnormalities quickly and stop the heat supply to the heating means to increase safety even when there is a fluid supply abnormality etc. It can be.

  In FIG. 6, a water supply port 45 that supplies water and a switching valve 49 that branches a water supply route from the water supply port 45 to the washing tub 46 into a main water channel 47 and a bypass channel 48 are provided, and fluid heating is performed in the middle of the bypass channel 48. The apparatus 39 includes the device 39. Here, there are a detergent dissolution tank 51, a control circuit 52 for performing water flow switching, flow rate and temperature adjustment, and washing control, and a drain port 53. Moreover, as shown in FIG. 7 which is an AA cross section in FIG. 6, the fluid heating device 39 is formed in a cylindrical shape, and is installed in the corner portion 54 of the washing machine in the vertical direction to save space.

  The operation and action of the washing and washing apparatus configured as described above will be described below.

  First, water is supplied from the water supply port 45 and supplied to the bypass path 48 by the switching valve 49 that can also control the flow rate. The supplied water is heated to an appropriate temperature by the instantaneous fluid heating device 39. Here, the optimum temperature control function of the fluid heating device 39 controls the energization of the heater 26 so that the water temperature detected by the thermistor 24 provided on the downstream side of the flow path becomes a temperature suitable for dissolving the detergent. Is what you do.

  By instantly heating the water to be supplied and supplying the appropriate temperature water to the detergent dissolution tank 51, the detergent dissolution tank 51 can be used well when the water temperature is too low and the detergent is difficult to dissolve.

  That is, the detergent in the detergent dissolution tank 51 is thoroughly melted by the appropriate temperature water heated through the fluid heating device 39 and poured into the clothes in the washing tub 46 in a state where the detergent solution has a high concentration. The well-dissolved high-concentration detergent solution soaks well into the clothes in the washing tub 46. For example, if the collar of a stubborn dirt shirt is soaked in advance with a liquid detergent and then washed in a washing machine, the same effect can be obtained as if the dirt is well removed.

  In this way, the washing machine is heated to an appropriate temperature water by the instantaneous fluid heating device 39, and the detergent is dissolved in advance in the detergent dissolution tank 51 and supplied to the washing tub 46, so that the dirt is easily removed at any time. A cleaning device can be provided.

  In addition, since the instantaneous fluid heating device 39 is heated only when it is used, waste of electric power can be reduced, and the fluid heating device 39 is compact and compact due to a high degree of freedom in mounting posture and compactness. It can be a washing machine.

  In addition, even when empty baking or the like occurs due to fluid supply abnormality or the like, high-safety washing is achieved by using the fluid heating device 39 that automatically stops heat supply to the heater 14 to enhance safety. A cleaning device can be provided.

  As described above, in the present embodiment, the fluid heating device according to any one of claims 1 to 9 and the washing tub for storing the washing water heated by the fluid heating device are provided. With a fluid heating device that achieves both flexibility and safety, it is possible to provide a safe and compact laundry washing device with high dirt removal performance.

  In the above embodiment, the example of the vertical type washing and washing apparatus has been described. However, the present invention is not limited to this, and the same effect can be obtained even in a drum type such as a horizontal type or an oblique type.

  In FIG. 8, a cleaning tank 55, an opening 57 that can be opened and closed by a door 56, a spray means 58 that is provided below the cleaning tank 55 and jets cleaning water, a pump 59 that circulates the cleaning water, and a water receiver 60 that stores the cleaning water. , A cleaning basket 62 for storing an object to be cleaned 61 such as tableware, a rail 63 for movably supporting the cleaning basket 62, a blower fan 64, a fluid heating device 39 provided below the cleaning tank 55, and water supply to the fluid heating device 39 It is the water supply pipe 65 to do.

  In the dish washing apparatus configured as described above, the washing water in the washing tank 55 is warmed by the fluid heating device 39, is pumped to the ejection means 58 by the operation of the pump 59, and is ejected vigorously from the ejection means 58. . The object to be cleaned 61 such as tableware housed in the cleaning basket 62 is cleaned by the cleaning water sprayed from the jetting means 58, and after the cleaning is completed, the cleaning water is drained by opening a drain valve (not shown). The object to be cleaned 61 such as tableware is dried by the ventilation of the operation 63.

  By adopting the instantaneous type as the fluid heating device 39, the temperature of the cleaning water can be changed to a temperature suitable for the object to be cleaned 61 in a short time, the cleaning effect can be enhanced, and energy saving can be achieved by avoiding unnecessary high temperatures. Can promote. Further, the convenience of the cleaning device can be enhanced by the safety and the compact fluid heating device 39. Thus, since the temperature of the washing water can be changed in a short time by the instantaneous fluid heating device with improved safety, the optimum washing temperature can be arbitrarily set, and a compact and compact dishwashing apparatus can be obtained.

  As described above, in the present embodiment, the fluid heating device according to any one of claims 1 to 9, the cleaning tank that stores an object to be cleaned such as tableware, and the cleaning heated by the fluid heating device. Equipped with a jetting means that jets water to the object to be cleaned, so the temperature of the cleaning water can be changed in a short time by a highly safe instantaneous fluid heating device, so the optimal cleaning temperature can be set arbitrarily and safe. A dishwasher can be provided.

  As described above, the fluid heating device according to the present invention can prevent an accident due to overheating by shutting off power to the heating element when the temperature of the heating element is excessively raised regardless of the posture of the fluid heating container. In addition to sanitary washing devices, the present invention is useful when applied to washing devices such as laundry washing devices and tableware washing devices.

Sectional drawing of the fluid heating apparatus in Embodiment 1 of this invention Sectional drawing of the fluid heating apparatus in Embodiment 2 of this invention Sectional drawing of the fluid heating apparatus in Embodiment 3 of this invention Sectional drawing of the fluid heating apparatus in Embodiment 4 of this invention Sectional drawing of the sanitary washing apparatus in Embodiment 5 of this invention Sectional drawing of the washing-cleaning apparatus in Embodiment 5 of this invention Cross-sectional view of the washing and washing apparatus in FIG. Sectional drawing of the tableware washing apparatus in Embodiment 5 of this invention Configuration diagram of conventional fluid heating device

Explanation of symbols

11 Fluid Heating Container 12 Inlet 13 Outlet 14 Heater (Seeds Heater)
22 Control means 26 Heating element (heater wire)
27 Current-carrying terminal 28 Metal member 29 Current-carrying-off means (thermal fuse)
32 Current interruption means (thermostat)
33 Current interruption means (thermistor)
39 Fluid heating device

Claims (8)

A fluid heating container having a fluid inlet and outlet, a heater provided in the fluid heating container, and a current-carrying means provided in thermal contact with a current-carrying terminal joined to a heating element of the heater. Fluid heating device. The fluid heating apparatus according to claim 1, wherein the energization cutoff means is a thermistor and a control means. The fluid heating apparatus according to claim 1, wherein the energization cutoff means is a thermostat. The fluid heating apparatus according to claim 1, wherein the energization cutoff means is a thermal fuse. The fluid heating device according to claim 1, wherein the energization interruption means is provided in at least two stages by providing different interruption temperatures or by performing different energization interruptions. The fluid heating device according to any one of claims 1 to 5, wherein the energization cutoff means is configured to be detachably attached to the energization terminal via a metal member. A sanitary washing device that ejects wash water supplied from a water supply source to a portion to be washed of a human body, wherein the fluid heating device according to any one of claims 1 to 6 and the washing heated by the fluid heating device A sanitary washing device comprising jetting means for jetting water onto the human body. The washing | cleaning apparatus which wash | cleans clothing or tableware provided with the fluid heating apparatus in any one of Claims 1-6.