JP2015052399A - Mist generator - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a mist generator which can favorably feed water to a water storage chamber.SOLUTION: A mist generator comprises: a solenoid 14; a float switch 25 which detects a lower limit of a water level in a water storage chamber 10; a mist generation part 20 which crushes stored water in the water storage chamber 10, and generates nano mist and negative ions; a blower fan 21 which blows humidified air containing the nano mist and the negative ions which are generated at the mist generation part 20 into a room; and a control part 38 which drives the blower fan 21, and performs mist drive for blowing the humidified air containing the nano mist and the negative ions generated at the mist generation part from a blowing port 4 formed at an implement main body 1. The control part 38 receives a signal which has detected the lower limit of the water level in the water storage chamber 10 of the float switch 25, carries electricity to the solenoid 14, starts water feeding by valve-opening a water feeding valve, makes counting means 26 start to count a time, stops the electricity carrying to the solenoid 14 by the count-up of a prescribed time, and valve-closes the water feeding valve.

Description

  The present invention relates to a mist generating device that generates humid air containing nanomist and negative ions.

  Conventionally, in this type of water, the water stored in the water storage chamber where the mist generating unit crushes the water and generates nano mist and negative ions opens and closes the solenoid valve by a float switch that moves up and down according to the water level. By controlling, a constant amount of water was always stored in the water storage chamber. (For example, Patent Document 1)

JP 2013-19652 A

  By the way, this conventional device has a problem that the float switch causes chattering due to the undulation of the water surface, and the solenoid valve as the water supply opening / closing means frequently repeats ON / OFF, thereby speeding up the failure or deterioration of the solenoid valve. It was a thing.

  In order to solve the above-mentioned problem by focusing attention on this point, the present invention provides a device main body, a water storage chamber installed in the device main body for storing a predetermined amount of water, and a fixed amount in the water storage chamber. A water supply tank for supplying water as needed, a solenoid for controlling the water supply by opening the water supply valve by pushing up the plunger by energizing the water supply valve of the water supply tank, and a float for detecting the lower limit of the water level in the water storage chamber A switch, a mist generating unit that crushes water stored in the water storage chamber to generate nano mist and negative ions, a blower fan that blows humidified air containing nano mist and negative ions generated in the mist generating unit into the room, Miss provided with a control unit that drives a blower fan and blows humidified air containing negative ions and nano-mist generated in the mist generating unit from a blower opening formed in the instrument body In the generator, the control unit receives a signal detecting the lower limit of the water level in the water storage chamber of the float switch, energizes the solenoid to open the water supply valve to start water supply, and also counts time in the time measuring means. Is started, and energization of the solenoid is stopped by counting up for a predetermined time, and the water supply valve is closed.

  As described above, according to the present invention, in response to a signal for detecting the lower limit water level of the water storage chamber by the float switch, the controller energizes the solenoid and pushes up the plunger to open the water supply valve of the water supply tank to supply water. In addition to starting, the time counting means starts counting for a predetermined time, and when the time counting means counts up for a certain period of time, the energization to the solenoid is stopped and the water supply is stopped. Even when chattering, solenoid energization is stopped in time and does not repeat ON / OFF, solenoid failure and deterioration can be prevented, and accurate and good water supply can be performed over a long period of time It is.

The perspective view explaining the external appearance of the mist generator of one Embodiment of this invention. The schematic block diagram of the embodiment. The control block diagram of the embodiment. The flowchart explaining the water supply control of the embodiment. The flowchart explaining the control after completion | finish of mist driving | operation of the embodiment.

Next, a mist generator according to an embodiment of the present invention will be described with reference to the drawings.
Reference numeral 1 denotes an instrument body, which is composed of a lower case 2 constituting the lower surface of the instrument body 1 and an upper case 3 constituting the upper surface.

  4 is an air outlet for releasing humidified air generated in the instrument main body 1 into the room, and 5 is a drainage handle formed on the front of the instrument main body 1 for storing a predetermined amount of wastewater generated in the instrument main body 1. A tray 6 is a water supply tank door which is formed on the upper surface of the instrument body 1 and can be freely opened and closed, and 7 is an operation unit provided with various operation switches.

  8 is an outer case fixed in the instrument body 1, and 9 is an inner case that can be attached to and detached from the upper part of the outer case 8, and a predetermined amount of water can be stored in the inner case 9. The water storage chamber 10 is constituted by the case 8 and the inner case 9.

  11 is a cartridge-type water supply tank capable of storing a predetermined amount of water inside, and 12 is a water supply valve mounted at the tip of the water supply tank 11. The plunger is driven by a magnetic force applied to an inlet (not shown) of the water supply valve 12. A solenoid 14 that opens when the valve 13 is pushed up is provided to supply water in the water supply tank 11 to the water storage chamber 10.

  Reference numeral 15 denotes a cylindrical rotating body having a lower end submerged in the water storage in the water storage chamber 10 and supported by the drive shaft 16. The rotating body 15 has a substantially central portion and a nut (not shown) at the end of the drive shaft 16. The inner case 9 of the water storage chamber 10 can be removed from the outer case 8 after removing the nut and removing the rotating body 15.

  The rotating body 15 has a hollow inverted conical shape and gradually increases in diameter upward, and is driven by a mist motor 17 that is connected to the drive shaft 16 and rotationally drives the rotating body 15 so that the rotating body 15 rotates. The water stored in the water storage chamber 10 is pumped up by the centrifugal force of the rotation, and the water is pushed up along the outer wall and the inner wall of the rotating body 15, and the water pushed up along the outer wall of the rotating body 15 is scattered around. At the same time, the water pushed up along the inner wall of the rotating body 15 is scattered from a plurality of scattering ports (not shown) formed at the upper end of the rotating body 15.

  Reference numeral 18 denotes a cylindrical porous body that is positioned on the outer periphery of the rotating body 15 at a predetermined interval and rotates together with the rotating body 15. The porous body 18 includes a large number of slits, a metal mesh, and punching metal on its entire peripheral wall. A porous portion 19 as an impact body made of, for example, is installed, and the rotator 15, the mist motor 17, and the porous body 18 constitute a mist generating portion 20.

  Water droplets that have passed through the porous portion 19 by pumping the water in the water storage chamber 10 with the centrifugal force generated by driving the mist motor 17 constituting the mist generating portion 20 and rotating the rotating body 15 and scattering the air. As a result, the water particles are refined to produce nanometer (nm) mist, and a large amount of negative ions are generated by the Leonard effect of the water particles.

  Reference numeral 21 denotes a blower fan that is driven at a predetermined number of revolutions. The blower blows indoor air sucked from a suction port (not shown) on the back of the instrument body 1, passes through the water storage chamber 10, and blows air from the blower port 4. Then, humidified air containing nano mist and negative ions generated in the water storage chamber 10 is supplied to the room.

  A heater 22 is installed at the bottom of the water storage chamber 10 and indirectly heats the water stored in the water storage chamber 10. The heater 22 is pressed against the outer wall of the inner case 9 by a spring 23 to change the water storage temperature in the inner case 9. The water storage temperature is adjusted by appropriately switching the ON / OFF state so that the temperature detected by the water storage temperature sensor 24 to be detected becomes a predetermined temperature.

  25 is a float switch that is installed in the inner case 9 and detects the water level when the float that floats on the water surface moves up and down, and outputs an ON signal when the water level in the inner case 9 falls below the lower limit water level, The solenoid 14 is energized via a control unit which will be described later, and the plunger 13 is pushed up to open the water supply valve 12 so that water in the water supply tank 11 is replenished, and an ON signal of the float switch 25 is received. Then, the time measuring means 26 in the control unit starts measuring the time, and the energization of the solenoid 14 is stopped at a predetermined time, here 15 seconds, and the water supply valve 12 is closed by returning the plunger 13 to the original time. In addition, when the operation switch (not shown) is turned OFF, when the operation is stopped, the ON signal of the float switch 25 is not accepted and water remains in the water supply tank 11. Drainage to the drainage tray 5 in to which a state is intended to permit.

  27 is a drain outlet formed at the bottom of the inner case 9, and is composed of a substantially cylindrical tube portion 28 and a substantially bowl-shaped ring portion 29 formed on the outer periphery of the tube portion 28, The drainage valve 30 installed inside the cylinder portion 28 operates in the vertical direction to control the drainage of the stored water from the inner case 9.

  31 is a drain guide which is connected to the lower part of the outer case 8 and is provided with a projection 32 at the substantially center for guiding the cylindrical portion 28 of the drain 27 to a predetermined mounting position. The inner case 9 is located on the drain guide 31. As a result, the drain valve 30 comes into contact with the protrusion 32 and is lifted upward, and the water stored in the inner case 9 flows into the drain guide 31.

  A drain pipe 33 is connected to the drain guide 31 and is provided with an electromagnetic drain valve 34 in the middle of the pipe. When the inner case 9 is attached to the drain guide 31, the drain valve 30 is lifted by the protrusion 32. The stored water in the inner case 9 flows into the drain pipe 33 from the drain guide 31 and flows down from the end of the drain pipe 33 into the drain tray 5 so that the stored water in the inner case 9 can be recovered as drainage. it can.

  35 is installed on the side surface of the drainage tray 5 and switches between ON / OFF states depending on whether the magnet 36 is connected or not, so that a predetermined amount of water is stored in the drainage tray 5 to determine whether the water is full or not. When a predetermined amount or more of wastewater is stored in the drainage tray 5 and the magnet 36 is separated from the drainage sensor 35, an ON signal is output to detect full water, the drainage valve 34 is closed and the drainage pipe 33 is closed. By preventing the inflow of water, it is possible to prevent the water from overflowing from the drain tray 5, so that the installation surface of the instrument body 1 is not wetted.

  37 is a drainage guide plate installed in parallel along the drainage pipe 33 at the lower part of the outer case 8 and collects the water overflowing from between the drainage port 27 and the drainage port guide 31 to collect the drainage tray. Since the configuration up to 5 can be guided, the installation surface of the instrument body 1 is not wetted.

  Reference numeral 38 denotes a control unit composed of a microcomputer for controlling the operation content and the opening / closing of the valve based on the detection value detected by each sensor and the setting content of each switch provided on the operation unit 7. Energizing time to the mist motor control means 39 for driving the fan at a predetermined rotational speed, the blower fan control means 40 for driving the blower fan 21 at the predetermined rotational speed, and the solenoid 14 for opening the water supply valve 12 of the water supply tank 11 There is also provided time measuring means 26 for counting the time elapsed since the drain valve 30 was opened when the water in the inner case 9 was drained.

Next, water supply control in this embodiment will be described.
First, when the water supply tank 11 is filled with water and set in the instrument main body 1 and the operation switch on the operation unit 7 is turned on to start operation, the float switch 25 is moved to the water storage chamber 10 as shown in the flowchart of FIG. When the water level is detected and below the lower limit water level (step 41), the process proceeds to step 42 with YES to check whether the operation is in progress. If NO, the operation signal is not sent to the solenoid 14 at step 43 and the operation is in progress. Only in this case, the process proceeds to step 44, and the solenoid 14 is energized via the control unit 38, the plunger 13 is pushed up to open the water supply valve 12 to supply water in the water supply tank 11 to the water storage chamber 10, and The time counting means 26 is allowed to start counting for a predetermined time, here 15 seconds.

  When the time counting means 26 counts up for 15 seconds in step 45, the process proceeds to step 46 in YES, and the energization of the solenoid 14 is stopped via the control unit 38, thereby returning the plunger 13 to the original state and closing the water supply valve 12. In this state, the water level in the water storage chamber 10 can be kept constant at a constant level by ending the water replenishment from the water supply tank 11, and the mist motor 17 and the blower fan 21 constituting the mist generating unit 20 are driven in this state. Then, the centrifugal force generated by the rotation of the rotating body 15 pumps up the water in the water storage chamber 10 and scatters the air, and the water droplets that have passed through the porous portion 19 are crushed. Mist is generated, and a large amount of negative ions is generated by the Leonard effect due to the refinement of water particles. And releases within, in which the air cleaning of utilizing a filter effect good humidification and water takes place.

  In this way, the water supply valve 12 is opened when the water level is lowered by the float switch 25, and the water supply valve 12 is closed by a timer that counts a predetermined time. 14 does not repeat ON / OFF, can supply a certain amount of water accurately, can prevent failure and deterioration of the solenoid 14, and can perform accurate and good water supply over a long period of time. is there.

Next, drainage and drying operation after the mist operation will be described based on the flowchart of FIG.
When an operation switch (not shown) on the operation unit 7 is switched to the OFF state during the mist operation, the control unit 38 determines whether the drain sensor 35 is OFF (step 47), and the drain sensor 35 is OFF. If so, the drain valve 34 is opened (step 48), the water in the inner case 9 is guided to the drain tray 5, and the counting of the time elapsed since the drain valve 34 was opened by the time measuring means 26 is started. (Step 49). On the other hand, if the drainage sensor 34 is in the ON state, the control unit 38 sounds a notification sound from a speaker (not shown) that the drainage tray 5 is full, and displays that the drainage tray 5 is full on a display unit (not shown). Then, an error is notified (step 50).

  When the drain valve 34 is opened in step 48, the control unit 38 determines whether the count time in the time measuring means 26 has passed a predetermined time of 20 seconds (step 49), and if 20 seconds have passed, the inner case 9 The drain valve 34 is closed assuming that all of the water in the drain tray 5 has flown into the drain tray 5, and the blower fan 21 is driven at a predetermined rotational speed by the blower fan control means 40 to start the drying operation in the inner case 9 (step 51). ). On the other hand, if the counting time in the time measuring means 26 has not passed 20 seconds, the control unit 38 determines whether or not the drainage sensor 34 is in an ON state (step 52). If the inside of the tray 5 is full, the process proceeds to step 50, and if the drainage sensor 34 is in the OFF state, the time elapsed since the drainage valve 34 was opened again in step 48 is confirmed.

  When the drying operation for closing the drain valve 34 and driving the blower fan 21 is started in step 51, the control unit 38 confirms the time counted from the start of the drive of the blower fan 21 with the time measuring means 26, and the counted time 15 It is determined whether the minute has elapsed (step 53), and if 15 minutes have elapsed since the start of driving the blower fan 21, the blower fan control means 40 stops the drive of the blower fan 21 (step 54), and the drying operation ends. .

  In addition, after notifying the error that the drain tray 5 is full in step 50, the user takes out the drain tray 5 from the instrument body 1, drains the water in the drain tray 5, and then installs it in the instrument body 1 again. The control is resumed from step 47 by turning on a drain switch (not shown) on the operation unit 7.

  As described above, when the mist operation is completed, the drain valve 34 is opened to drain the water in the inner case 9, and when it is determined that all the water in the inner case 9 has been drained, the drying operation for driving the blower fan 21 is performed. Since the inner case 9 is always kept clean even if the user does not clean the inner case 9 every time the mist operation is completed, it is possible to prevent the generation of germs and molds, improving usability To do.

DESCRIPTION OF SYMBOLS 1 Instrument main body 4 Air outlet 5 Drain tray 8 Outer case 9 Inner case 10 Water storage chamber 11 Water supply tank 12 Water supply valve 13 Plunger 14 Solenoid 20 Mist generating part 21 Blower fan 25 Float switch 26 Timekeeping means 38 Control part

Claims (1)

  A device body, a water storage chamber installed in the device body for storing a predetermined amount of water, a water supply tank for supplying a constant amount of water to the water storage chamber as needed, and a plunger for energizing a water supply valve of the water supply tank. Solenoid that controls water supply by opening the water supply valve by pushing up, a float switch that detects the lower limit of the water level in the water storage chamber, and mist generation that crushes the water storage in the water storage chamber and generates nano mist and negative ions Generated in the mist generating portion from the air blower fan that drives the blower fan and drives the air blowing fan into the room, and the air blowing fan containing humidified air containing negative mist and nano mist generated in the mist generating portion In the mist generating apparatus, the controller is configured to perform a mist operation that blows humidified air containing negative ions and the humidified air containing negative ions. In response to a signal that detects the lower limit of the position, the solenoid is energized to open the water supply valve to start water supply, and the timing means starts timing and stops energization to the solenoid at a predetermined time count. A mist generator characterized by closing a water supply valve.

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