JP5537485B2 - Mist generator - Google Patents

Description

  The present invention relates to a mist generator that generates nano mist and negative ions.

  The present applicant previously provided a mist generating device that generates warm nano mist and negative ions in Patent Document 1 below. Such a mist generator will be described with reference to FIG. 4. 101 is a mist generator main body, 102 is a water storage chamber, 103 is a heater for heating water in the water storage chamber 102, 104 is a constant water level chamber, and 105 is a water storage chamber 102. , A water supply tank 106 for supplying water to the constant water level chamber 104, and water supply from the water supply tank 106 always supplies water at a constant water level to the water storage chamber 102 and the constant water level chamber 104. The water is stored. 107 is a temperature sensor for detecting the temperature of water in the water storage chamber 102, 108 is provided in the constant water level chamber 104, and there is a water level when there is water storage above the predetermined water level in the water storage chamber 102 and the constant water level chamber 104. It is a float sensor for water level detection that detects water.

  109 is a cylindrical rotating body in which the lower end is submerged in the water stored in the water storage chamber 102, 110 is located at an outer periphery of the rotating body 109, and is rotated by the driving motor 111 together with the rotating body 109. Cylindrical porous body to which water pushed up by centrifugal force is scattered and hit, 112 is located on the outer periphery of the porous body 110 and blower cylinder against which water scattered from the porous body 110 hits, 113 is a rotating body 109 and a porous body 110 is a blower that is rotated by the drive of a drive motor 111. By the drive of the drive motor 111, the rotating body 109, the porous body 110, and the blower 113 are rotated, and the air sucked from the suction port 114 contains nanomist and negative ions. The air containing nano mist and negative ions is discharged from the air outlet 115 into the room. Reference numeral 116 denotes a control means for controlling the operation of the heater 103 and the drive motor 111 in response to an input signal from the operation unit 117 having an operation switch or the like and detection signals from the temperature sensor 107 and the float sensor 108.

  Next, the mist operation in the mist generator 101 will be described. During the mist operation, the heater 103 is turned on / off based on the water temperature detected by the temperature sensor 107, and the water level in the water storage chamber 102 is kept constant. The stored water is held at the set temperature, and the water stored in the water storage chamber 102 heated to the set temperature by the rotation of the rotating body 109 driven by the drive motor 111 is pushed up by the centrifugal force from the lower end of the rotating body 109 by the rotation of the rotating body 109. It is scattered and crushed and refined by hitting the porous body 110 and the blower cylinder 112 to generate warm nanomist and negative ions. By rotating the blower 113, air containing warm nanomist and negative ions is released into the room. To do.

  At this time, the control means 116 determines from the detection signal of the float sensor 108 whether or not there is a water level above a certain water level in the water storage chamber 102, and determines that there is no water level above the certain water level in the water storage chamber 102. In this case, it was determined that water was exhausted, the heater 103 was turned off, and the drive motor 111 was stopped to stop the mist operation.

Japanese Patent Application No. 2010-280339

  By the way, in this conventional device, the control means 116 determines whether or not there is a water level above a certain level in the water storage chamber 102 from the detection signal of the float sensor 108. However, the float sensor 108 malfunctions due to dust clogging or the like. And the float sensor 108 may fall into a detection state where it is constantly detected when there is a water level above a certain level in the water storage chamber 102. In this case, even if the mist operation is continued, the water supply in the water supply tank 106 is lost, and the water level in the water storage chamber 102 and the constant water level chamber 104 is lowered, the float sensor 108 detects that there is a water level above a certain level. Therefore, the mist operation will not be stopped.

  When the water level of the water storage chamber 102 and the constant water level chamber 104 continues to decrease and the lower end of the rotating body 109 reaches a water level that is not in contact with water, the water stored in the water storage chamber 102 is stirred by the rotation of the rotating body 109. The water storage temperature in the water storage chamber 102 detected by the temperature sensor 107 at that time becomes higher by overshooting than when the lower end of the rotating body 109 is in contact with the water and rotates, but the heater 103 has a set temperature. ON / OFF control is performed so that the heater 103 and the drive motor 111 continue to be used wastefully without stopping even after there is no water storage in the water storage chamber 102. Applicants have found that the problem of being

  Therefore, the present invention accurately determines the abnormality of the float sensor 108 from the stored water temperature detected by the temperature sensor 107 during the mist operation, and prevents the heater 103 and the drive motor 111 from being driven unnecessarily. The object is to provide a mist generator.

  In order to solve the above-described problems, the present invention has a configuration in which, in particular, a water storage chamber for storing water, a heater for heating water stored in the water storage chamber, a lower end of the water storage in the water storage chamber is submerged, and the water is stored by rotation. A cylindrical rotating body that is pumped up and scattered, a driving means that rotationally drives the rotating body, a collision body that collides with the water scattered by the rotation of the rotating body, and the stored water is crushed by the collision body A blower for supplying the generated nanomist and negative ions into the room, temperature detecting means for detecting the temperature in the water storage chamber, water level detecting means for detecting that there is a water level when there is water storage above a certain water level in the water storage chamber, The output of the heater is controlled so as to maintain the temperature of the stored water in the water storage chamber at a set temperature, and the driving means and the blower are controlled to supply the nanomist and negative ions into the room. When the mist operation is performed, and the water level detecting means detects no water level during the mist operation, the mist generating device includes a control means for stopping the mist operation, Counting means is provided for counting the number of times that the temperature detected by the temperature detecting means when the heater is turned off exceeds a preset overheating temperature higher than the set temperature, and the control means is provided by the counting means. When it was determined that the count reached a predetermined number, it was determined that there was an abnormality and the mist operation was stopped.

  According to the present invention, the counting means that counts the number of times that the temperature detection means detects the temperature detected by the temperature detection means after the heater is turned off and exceeds the preset overheating temperature that is higher than the set temperature during the mist operation. When the control means determines that the counting by the counting means has reached a predetermined number of times, the mist operation is stopped, so that the water level in the reservoir is higher than a certain water level due to malfunction during the mist operation. Even if the water level detection means is erroneously detected, an abnormality can be determined from the count of the counting means, and the mist operation is stopped to prevent the heaters and the like from being driven unnecessarily. Is something that can be done.

The schematic block diagram which shows the mist generator of one Embodiment of this invention. The principal part block diagram of the mist generator of the same embodiment. The time chart which showed abnormality determination of the float sensor in the mist driving | operation of the mist generator of the same embodiment. The schematic block diagram which shows the conventional mist generator.

Next, a mist generator according to an embodiment of the present invention will be described with reference to FIGS.
1 is a mist generating device body that cleans and humidifies indoors, and directly applies nano mist and negative ions to the face of a person to make a beautiful face. At the center, the room air is fixed to the lid 2 and sucked from the suction port 3. A cylindrical guide tube 5 is provided to guide the blower 4 composed of a sirocco fan that is rotationally driven at the center. The guide tube 5 is provided with a blower tube 6 that is suspended down to the lower side of the blower 4 so as to cover the blower 4. Yes.

  Reference numeral 7 denotes a processing chamber covering the guide tube 5, and a water storage chamber 8 made of aluminum die cast is provided in the lower portion of the processing chamber 7, and a water supply tank 9 as a water supply means is provided in the water storage chamber 8. The set constant water level chamber 10 communicates with the water passage 11, and the water supply tank 9 supplies the water supply by a drop method so that the water storage chamber 8 is always kept at a constant water level. A float sensor 12 is provided in the constant water level chamber 10 and outputs a water level detection signal for detecting the presence of a water level when the water storage chamber 8 and the constant water level chamber 10 store water at a certain level or higher. is there.

  Reference numeral 13 denotes a drive motor as a drive means for supporting the water storage chamber 8 below the water storage chamber 8, which is covered with a cover body 14 and fixed to a substrate 15 constituting the bottom of the apparatus body 1. A bowl-shaped running water groove 16 that protrudes outward is formed around the outer peripheral wall.

  Reference numeral 17 denotes a cylindrical rotating body that is supported by a drive shaft 18 that submerges the lower part of the water storage chamber 8 and rotates the blower 4 through the water storage chamber 8. The rotating body 17 has a hollow inverted conical shape. The diameter gradually expands upward, and by rotating the rotating body 17, the water stored in the water storage chamber 8 is pumped up by the centrifugal force of this rotation and pushed up along the outer and inner walls of the rotating body 17. The stored water pushed up along the outer wall of the rotating body 17 is scattered to the surroundings, and the stored water pushed up along the inner wall of the rotating body 17 is scattered to the surroundings from a plurality of spray ports 19 formed at the upper end of the rotating body 17. It is something to be made.

  Reference numeral 20 denotes a cylindrical porous body which is positioned on the outer periphery of the rotating body 17 at a predetermined interval and rotates together with the rotating body 17. The porous body 20 includes a large number of slits, a metal mesh, punching metal, etc. on its entire peripheral wall. The porous portion 21 is formed, and the water in the water storage chamber 8 is pumped up by the centrifugal force generated by the rotation of the rotator 17 and the air is scattered. In addition to generating nanometer (nm) size mist by generating fine particles, negative ions are generated due to the Leonard effect of water particles, and the water particles that have passed through the porous portion 21 are: Furthermore, it collides with the inner wall of the blower cylinder 6 on the outer periphery of the porous body 20 and is refined, and the collision body is constituted by the porous body 20 and the blower cylinder 6.

  A heater 22 is wound around the outer periphery of the water storage chamber 8 and serves as a heating means for heating the water stored in the water storage chamber 8. When the air flow rate is set to “strong”, the water storage temperature in the water storage chamber 8 is set to a set temperature. When the air flow rate is set to “weak” around 38 ° C., the water storage temperature in the water storage chamber 8 is heated and kept at a set temperature of about 34 ° C., and the blowing temperature is kept at about 30 ° C. The heater 22 is turned on / off and held at a predetermined temperature by the temperature detected by the temperature sensor 23 as a temperature detection means comprising a thermistor that discharges from the bottom of the water storage chamber 8 and detects the temperature of the water stored in the water storage chamber 8. A mode in which the heater 22 is forcibly turned off and the water stored in the water storage chamber 8 is not heated can be set.

  24 is a dish-shaped water flow blocking means which covers the upper surface of the water storage chamber 8 so as to face the lower ends of the blower cylinder 6 and the porous body 20, and an insertion hole 25 of the rotating body 17 is formed at the center. Since the water surface is partitioned by the support piece 26 extending from the outer periphery 25 to the outer periphery, the water flow to be rotated by the rotation of the rotating body 17 is prevented, and the water flow is easily generated by the action of the centrifugal force due to the rotation of the rotating body 17. The inner and outer circumferences can be raised. Further, the water flow blocking means 24 receives a relatively large water droplet that has not been refined by colliding with the upper blowing cylinder 6 or the porous body 20, so that this water droplet is directly dropped on the water surface of the water storage chamber 8, and a bash It is possible to prevent the falling sound of bash, and for that purpose, it is gently descending from the outer periphery toward the insertion hole 25 in the center, and water droplets are reliably returned to the water storage chamber 8 in a natural manner. It is something that can be done.

  Reference numeral 27 denotes a flow passage that discharges nanomist and negative ions generated by the rotation of the rotating body 17 and the porous body 20 from the blower outlet 28 at the top of the processing chamber 7 by driving the blower 4. From the gap with the water flow blocking means 24, it is constituted by a flow path that rises between the processing chamber 7, the guide cylinder 5, and the blower cylinder 6 and goes to the outlet 28.

  A drain valve 29 is provided in the water passage 11 communicating with the water storage chamber 8 and is always pressed toward the valve closing side. When the water supply tank 9 is set (stored) in the constant water level chamber 10, a compression spring ( When the lot 30 which is constantly pushed up is pushed down by the not shown), the lower end of the lot 30 locks the locking metal 31 and the drain valve 29 is closed, and the water supply tank 9 is set. The drainage of the remaining water in the water storage chamber 8 is surely prevented. When the water supply tank 9 is removed, the lot 30 is pushed upward by the compression spring, the lock of the locking metal fitting 31 is released, and the drainage The valve 29 is in a state where it can be opened.

  32 is a drainage tray with an open top surface that receives the drainage of the remaining water in the water storage chamber 8 and is provided so as to be freely inserted into and removed from the mist generator main body 1. A handle portion 33 is formed on the front surface, and the volume of the water storage chamber is It is set to a size that can sufficiently accommodate 8 residual water. Further, the drain tray 32 is formed with a protruding wall 34 on the inner rear side, and when the drain lever 35 is lowered, the locking fitting 31 presses the drain valve 29 to open the valve, and at that time, the lower end of the drain lever 35 projects. It is located below and outside the wall 34, and prevents the drain tray 32 from being pulled out during drainage by engaging the projecting wall 34 and the drain lever 35. Then, the pressing of the locking metal fitting 31 is released, the drain valve 29 is closed, the drain tray 32 is easily pulled out, and the waste water stored therein can be discarded into the kitchen or the like.

  36 is an umbrella-shaped shielding plate provided in the middle of the drive shaft 18 between the water storage chamber 8 through which the drive shaft 18 penetrates and the cover body 14, and the water leaked from the water storage chamber 8 is transmitted through the drive shaft 18 portion and driven. Intrusion into the motor 13 is prevented.

  Reference numeral 37 denotes a water supply port cap of the water supply tank 9, and water is supplied from the water supply tank 9 to the constant water level chamber 10 by being pushed up by a fixed support (not shown) of an internal valve mechanism (not shown). is there. Also, 38 is a tank lid that opens and closes when the water supply tank 9 is taken in and out, 39 is a handle for attaching and detaching the lid body 2, and 40 is a wind direction plate that is provided in the air outlet 28 and changes the blowing direction of nanomist and negative ions. It is.

  41 is a control means for controlling the operation of the heater 22 and the drive motor 13 in response to an input signal from the operation section 42 provided with an operation switch or the like and detection signals from the temperature sensor 23 and the float sensor 12. 41, a heater control means 43 for controlling the output of the heater 22, a motor control means 44 for controlling the output of the drive motor 13, and an output of the heater 22 by the heater control means 43 during a mist operation described later. The number of times that the detected temperature of the water stored in the water storage chamber 8 detected by the temperature sensor 23 rises over a preset overheating temperature that is higher than the set temperature of the water storage in the water storage chamber 8 by a predetermined temperature when the temperature sensor 23 is turned off. Counting means 45 for counting, and when the float sensor detects no water level during mist operation, and If the bets has reached a predetermined number of times set in advance, the driving of the heater 22 and the drive motor 13 is stopped, in which and a error stop means 46 for stopping the mist operation.

Next, operation | movement of the mist generator of one Embodiment shown in FIG. 1 is demonstrated.
First, when the operation switch of the operation unit 42 is turned on, the heating heater 22 is turned on and a sterilization mode for heating to a preset temperature sufficient to sterilize the stored water stored in the water storage chamber 8, for example, 70 ° C. When the water storage temperature in the water storage chamber 8 detected by the temperature sensor 23 reaches 70 ° C., the heater 22 is turned off to end the sterilization mode, and then the drive motor 13 is started to drive. The normal mode for generating nanomist and negative ions is executed.

  In the normal mode, the heater control means 43 turns on / off the heater 22 based on the water storage temperature in the water storage chamber 8 detected by the temperature sensor 23 to set the water stored at a constant water level in the water storage chamber 8 to the set temperature. The motor control means 44 controls the drive motor 13 to have a set rotation speed, and performs a mist operation that generates nano mist and negative ions and supplies them into the room.

  The blower 4 and the rotating body 17 that are coaxially fixed to the drive shaft 18 are driven to rotate by the drive motor 13, and the rotation of the blower 4 guides the indoor air sucked from the suction port 3 to the guide tube 5. After suction, it is discharged below the processing chamber 7.

  On the other hand, in the rotation of the rotating body 17, the water stored in the water storage chamber 8 heated to a predetermined temperature is pumped up by the rotation of the lower end of the rotating body 17, and is pushed up by the centrifugal force along the outer and inner walls of the rotating body 17. In addition, the water stored in the outer wall of the rotating body 17 is scattered outwardly, and the water stored in the inner wall of the rotating body 17 is pushed up and formed in the upper end of the rotating body 17. The water stored in the outer periphery of the rotating body 17 is smashed by colliding with the porous portion 21 of the porous body 20 which is located on the outer periphery of the rotating body 17 at a predetermined interval and rotates together with the rotating body 17. Or the thing which passed the porous part 21 collides with the inner wall of the outer periphery blowing cylinder 6, and is refined | miniaturized.

  At this time, the water stored in the water storage chamber 8 which is circular and has no resistance due to the rotation of the rotating body 17 tries to form a water flow rotating in the same direction as the rotating body 17, but the support piece 26 of the water flow blocking means 24 is on the water surface. Since it sinks and becomes a resistance and the formation of a rotating water flow is prevented, the centrifugal force acts sufficiently and the stored water is pushed up on the peripheral wall of the rotating body 17 and is crushed well as described above. .

  And while producing | generating nanomist by crushing and refinement | miniaturization of this heated warm water, negative ions are generated by the Leonard effect, and the generated nanomist and negative ions are once flown by the air flow toward the lower side of the processing chamber 7 of the blower 4 described above. After hitting against the blocking means 24 and dropping the large and heavy mist onto the water flow blocking means 24 and removing it, only fine nano mist and negative ions are set by the wind direction plate 40 from the upper outlet 28 via the flow passage 27. The air is discharged in the blowing direction and supplied to the room, and the room is humidified or cleaned.

  Further, the water flow blocking means 24 receives a drop of relatively large water droplets that have not been refined by colliding with the upper air blowing cylinder 6 or the porous body 20, so that the water droplets directly fall on the water storage surface of the water storage chamber 8. The generated bash and bash sound can be blocked, and the water flow blocking means 24 is gently descending from the outer periphery toward the insertion hole 25 at the center, so that the dropped water droplets Is surely returned to the water storage chamber 8 from the insertion hole 25, and the sound when returned is quiet.

  Furthermore, since the released nanomist is generated from the heated water storage, it is possible to use the nanomist and negative ions that are not chilly and warm, and can be used regardless of the winter season. The supplied nanomist is about 30 ° C. This is an intermediate temperature that is neither high nor low, so it is safe and can be used safely without the risk of burns due to precipitation or falling.

  Negative ions aspirated from the lungs enter the blood, and their reduction action prevents blood oxidation and makes the blood smooth. At the same time, it improves circulation and spreads blood to the peripheral blood vessels. It is thought that can be eased.

  In addition, with negative ions, there are fatigue recovery effect, mental stability effect, blood purification effect, resistance enhancement effect, autonomic nerve adjustment effect, etc., and nano mist spreads every corner of the air and bacteria It suppresses and smells and decomposes even now, and it has deodorizing effect, dust removing effect, sterilizing effect, and of course a humidifying effect.This humidification is smooth and moist air with no stickiness, and it penetrates through pores. The effect of keeping the skin and hair moisturized, and the release of a large amount of negative ions and nanomist capable of obtaining these effects also increases these effects.

  Further, when the heated water stored in the water storage chamber 8 is released and reduced as nano mist one after another by the rotating body 17 and the porous body 20, the water level in the water storage chamber 8 decreases, and the water corresponding to the decreased water level is supplied to the water supply tank. 9 is automatically replenished, and if the water storage temperature is lowered by this water replenishment, the heater 22 is turned on to control the water storage temperature to always become a predetermined temperature, which is always comfortable to the skin. The temperature nano mist can be continuously supplied.

  Further, when the water supply in the water supply tank 9 becomes empty, the tank lid 38 is opened, the water supply tank 9 is taken out from the mist generating device main body 1, tap water is supplied from the kitchen faucet and returned to the original state. It can be used again in the same way, and is very convenient to use.

  In addition, in order to release nano mist and negative ions into the room, the indoor air sucked from the suction port 3 by driving the blower 4 intersects with the water stored in the processing chamber 7 so that dust and germs in the air are collected. Eventually, the water is mixed into the water storage in the water storage chamber 8, so that the indoor air is strongly and satisfactorily cleaned.

  Further, when the mist generating device body 1 is used as a facial device, the nano mist released from the air outlet 28 enters the facial skin from the countless small pores of the face by bringing the face close to the air outlet 28. Enhances the skin's moisture retention and removes impurities in the skin. Negative ions remove waste from the surface of the skin and make it possible to regain clean, shiny skin, and relax mentally. It can be repeated every day while having fun.

  Next, abnormality determination of the float sensor 12 in the normal mode will be described with reference to a time chart shown in FIG. The curve in FIG. 3 shows the case where the float sensor 12 malfunctions due to dust clogging or the like, and the float sensor 12 constantly detects that there is a water level above a certain level in the water storage chamber 8. The transition of the water storage temperature in the water storage chamber 8 is represented, and the line shown below represents the ON / OFF state of the heater 22.

  The error stop means 46 monitors the detection signal of the float sensor 12 during the mist operation in the normal mode, and when the float sensor 12 detects that there is a water level above a certain water level in the water storage chamber 8. When the mist operation is continued and the float sensor 12 detects that there is no water level above a certain level in the water storage chamber 8, it is determined that water has run out, the heater 22 is turned off, the drive motor 13 is stopped, and the blower 4 The rotation of the rotating body 17 and the porous body 20 is stopped, the mist operation is stopped, and a notification that the water supply to the water supply tank 9 is promoted is notified.

  Here, when the float sensor 12 malfunctions due to clogging of dust and the like, and the float sensor 12 constantly falls into a detection state in which the water level above a certain level is detected in the water storage chamber 8, the lower end of the rotating body 17. The heater control means 43 sets the water storage temperature in the water storage chamber 8 based on the temperature detected by the temperature sensor 23 until the time t1 is reached while there is water storage in the water storage chamber 8 to the extent that the water is submerged. The heater 22 is ON / OFF controlled so that the temperature is maintained within ± 1 ° C. with respect to 38 ° C., for example.

  The mist operation for generating the nano mist and the negative ions is continued, the water supply in the water supply tank 9 is lost, the water level in the water storage chamber 8 and the constant water level chamber 10 is lowered, and the water level at which the lower end of the rotating body 17 is not in contact with water. Then, as shown between the time t1 and the time t2, the overshoot amount of the water storage temperature in the water storage chamber 8 gradually increases with respect to the set temperature. Again, the heater 22 is ON / OFF controlled by the heater control means 43 so as to be maintained at the set temperature. However, the amount of water stored in the water storage chamber 8 is reduced, and the lower end of the rotating body 17 is not in contact with water. When the water level is reached, the stored water is not stirred by the rotation of the rotating body 17 and the amount of heat radiation is reduced, so that the amount of overshoot after turning off the heater 22 is increased.

  Then, during the mist operation, after the output of the heater 22 is turned off by the heater control means 43, at time t2, the count means 45 is set in advance so that the detected temperature detected by the temperature sensor 23 is higher than the set temperature by a predetermined temperature. It is determined that the temperature has risen over the overheating temperature (here, set temperature + 5 ° C.), and one is counted. The counting means 45 in this embodiment is configured so that the next counting function is suppressed until the temperature detected by the temperature sensor 23 reaches the set temperature every time one count is performed. By doing so, it is possible to reliably count the number of times that the water storage temperature exceeds the overheating temperature and overshoots.

  Thereafter, during the mist operation after time t2, when the output of the heater 22 is turned off again by the heater control means 43, if it is determined that the temperature detected by the temperature sensor 23 has risen over the overheating temperature, The count means 45 counts (time t3, time t4), and when the error stop means 46 determines that the count by the count means 45 has reached a predetermined number of times (here, 3 times), a float sensor 12, the heater 22 is turned OFF and the drive motor 13 is stopped, the rotation of the blower 4, the rotating body 17 and the porous body 20 is stopped, the mist operation is stopped, and the float sensor 12 is stopped. An error indicating that the water level detection abnormality is present is notified.

  During the mist operation, for example, the air flow rate is changed from “strong” to “weak” or “weak” to “strong” by the operation of the operation unit 42, and the set temperature of the stored water in the water storage chamber 8 is changed. In this case, the count of the counting means 45 is reset, and the counting means 45 suppresses the next counting function until the detected temperature of the temperature sensor 23 reaches the changed set temperature. This is because when the set temperature is changed from a high temperature (38 ° C.) to a low temperature (34 ° C.), the water storage temperature detected by the temperature sensor 23 is not abnormal although the float sensor 12 is not abnormal. There is a possibility that a situation where the temperature rises over the superheated temperature with respect to the changed set temperature (34 ° C.) may occur, and at that time, the counter 45 is dealt with so as not to miscount, and by doing so, Thus, erroneous determination of the counting means 45 can be prevented, and reliable error determination by the error stopping means 46 can be performed.

  The count of the counting means 45 is also reset when the operation switch is turned OFF, when the power is lost due to a power failure, or when the mist operation is stopped.

  As described above, when the error stopping unit 46 determines that the count by the counting unit 45 has reached a predetermined number during the mist operation in which the float sensor 12 detects the presence of the water level, When it is determined that the water level is abnormal, and the heater 22 and the drive motor 13 are stopped to stop the mist operation, whereby the float sensor 12 erroneously detects that there is a water level above a certain level in the water storage chamber 8. Even so, the water level detection abnormality of the float sensor 12 can be accurately determined, and the driving of the heater 22 and the drive motor 13 can be prevented from being unnecessarily continued.

  Further, the counting means 45 counts when it is determined that the temperature detected by the temperature sensor 23 has risen over a preset overheat temperature (here, set temperature + 5 ° C.) higher than the set temperature by a predetermined temperature. However, in determining that the detected temperature detected by the temperature sensor 23 has risen across the overheat temperature, it is determined when the detected temperature detected by the temperature sensor 23 exceeds the overheat temperature from less than the overheat temperature. In addition, it may be determined if the detected temperature detected by the temperature sensor 23 exceeds the overheat temperature for a predetermined time (for example, 5 seconds) from less than the overheat temperature to the overheat temperature. Yes, in the latter case, a predetermined time is required until it is determined that the detected temperature detected by the temperature sensor 23 has risen over the overheat temperature, which is accompanied by an abnormality. An increase in water temperature in which it is possible to accurately determine.

  The error stop means 46 determines that the water level detection of the float sensor 12 is abnormal when the count by the count means 45 has reached a predetermined number of times, and stops the mist operation. When it is determined that the count by the counting means 45 has reached the predetermined number of times within a predetermined time (for example, 20 minutes) from the first count by the means 45, it is determined that the float sensor 12 has detected a water level abnormality, and the mist operation is performed. You may make it stop, and by doing so, the phenomenon that the water storage temperature in the water storage chamber 8 exceeds the overheat temperature and overshoots can be caught in a short period of time, and the abnormality can be determined reliably. .

  Note that the present invention is not limited to the above-described embodiment, and in this embodiment, the heater control means 43 simply sets the heater 22 so that the water storage temperature in the water storage chamber 8 becomes a set temperature. Although the output of the heater 22 is controlled by turning it ON or OFF, the heater control means 43 controls the energization amount to the heater 22 so that the water storage temperature in the water storage chamber 8 becomes a set temperature, and heating is performed. The output of the heater may be variably controlled stepwise or steplessly.

  In the present embodiment, the blower 4 and the rotating body 17 are coaxially fixed by the drive shaft 18 of the drive motor 13 and can be driven to rotate simultaneously by the drive motor 13. However, the blower 4 is driven to rotate. The drive motor and the drive motor that rotationally drives the rotating body 17 may be separately provided so that the blower 4 and the rotating body 17 can be independently driven to rotate.

DESCRIPTION OF SYMBOLS 4 Blower 6 Blower cylinder 8 Water storage chamber 12 Float sensor 13 Drive motor 17 Rotating body 20 Porous body 22 Heater 23 Temperature sensor 41 Control means

Claims (1)

  A water storage chamber for storing water, a heater for heating the water stored in the water storage chamber, a cylindrical rotating body that submerses the lower end of the water stored in the water storage chamber, pumps the water storage by rotation, and scatters the rotating body, and rotates the rotating body A driving means for driving; a collision body that collides with water stored by rotation of the rotating body; a blower that supplies nano mist and negative ions generated by crushing the water in the collision body into the room; and the water storage Temperature detection means for detecting the temperature in the room, water level detection means for detecting the presence of a water level when there is water storage above a certain level in the water storage chamber, and the temperature of the water storage in the water storage chamber is maintained at a set temperature. While controlling the output of the heater and controlling the driving means and the blower, the mist operation for supplying the nano mist and negative ions into the room is performed, and the water level is detected during the mist operation. When the stage detects no water level, in the mist generating device comprising the control means for stopping the mist operation, the detected temperature detected by the temperature detection means during the mist operation and when the heater is turned off, A counting means is provided for counting the number of times the temperature has been increased over a preset overheating temperature higher than the set temperature, and the control means determines that the count by the counting means has reached a predetermined number A mist generating apparatus characterized by determining and stopping the mist operation.

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