JP4515268B2 - humidifier - Google Patents

Description

  The present invention relates to a humidifier that evaporates water by heating, and more particularly, to a humidifier having a structure for preventing hot water outflow during a fall.

  A conventional heating humidifier is provided with a blow-off port that discharges steam to the outside, and a valve that opens and closes an air passage that introduces air into a mixing chamber that mixes steam and air. When it is on the installation surface, it is opened by pushing up the valve stem, and when the body falls, it closes by leaving the body away from the installation surface, making it a safeguard against burns caused by hot water spills when the body falls. It has become. (For example, see Patent Document 1)

JP 2001-116302 A (paragraph numbers 0015 to 0021, FIGS. 1 and 3)

  However, in the case of the conventional humidifier, when the main body of the humidifier falls to the water tank side, when the main body tilts, hot water in the evaporating dish flows backward through the water supply port to the water receiving portion side, There was a risk of spilling out of the body.

  The present invention has been made to solve the above-described problems, and an object of the present invention is to provide a humidifier that can prevent hot water from flowing out when the main body falls.

A humidifier according to the present invention includes a main body having an air inlet, a water tank provided in the main body, a water receiving portion for receiving water from the water tank, and water supplied via a water supply port of the water receiving portion. An evaporating dish for heating the evaporating dish, a steam guiding cylinder for guiding steam generated from the evaporating dish, a blower fan for taking in air from the intake port, an air guiding cylinder for guiding air sent from the blowing fan, and the steam guiding cylinder In a humidifier equipped with a mixing chamber for mixing steam from the air guide tube and an air outlet for discharging the steam from the mixing chamber to the outside, the water inlet of the water receiving portion is opened during normal operation. A check valve mechanism that closes when the main body falls, the check valve mechanism having an upper wide mouth portion and a lower narrow mouth portion, a lid that detachably covers the wide mouth portion of the holder, set to narrow-mouthed portion of the holding body A valve portion that is constantly biased upward by a spring, and normally presses the valve portion downward by its own weight to open the valve portion, and when the main body falls, the valve portion is detached from the valve portion. And a sphere to be closed.

According to the present invention, the water supply port of the water receiving portion is provided with a check valve mechanism that opens during normal operation and closes when the main body falls, and the check valve mechanism includes an upper wide-mouth portion and a lower narrow-mouth portion. A holding body, a lid that detachably covers the wide mouth portion of the holding body, a valve portion that is provided in the narrow mouth portion of the holding body and is constantly biased upward by a spring, and normally the valve portion by its own weight , The valve portion is opened downward, and a sphere that is disengaged from the valve portion and closes the valve portion when the main body falls is provided, so that it is possible to prevent hot water from flowing out of the machine body during the fall. .

  FIG. 1 is a cross-sectional view of a humidifier showing an embodiment of the present invention, and FIG. 2 is an enlarged view of a water receiver of the humidifier. The humidifier is formed of a synthetic resin and is provided with a water tank 2 in a main body 1 provided with an air inlet 10 on a side surface. The water tank 2 includes a water outlet 4 and a water stop valve 30 for opening and closing the water outlet 4. A tank cap 3 is attached. Further, a water receiving portion 5 having a water supply port 27 for receiving water supplied from the inside of the water tank 2 through the water outlet 4 and held at a constant water level by the tank cap 3 is provided.

As shown in FIG. 2, a check valve mechanism 16 is provided below the water receiving portion 5.
The check valve mechanism 16 includes a sphere holder 18 that has a wide opening 18a at the top, a side inlet 18b, and a narrow mouth at the bottom. A lid 19 having a projection 19a for pushing up the water stop valve 30 of the tank cap 3 attached to the water tank 2 on the upper surface, and a rib-shaped seat provided in the narrow mouth portion of the sphere holder 18 A valve shaft 21 supported by the portion 20 in a vertically movable manner, a check valve 22 provided at the lower end of the valve shaft 21 for opening and closing the water supply port 27, and a disc 23 provided on the upper end of the valve shaft 21 and a seat A coil spring 24 that is provided between the portion 20 and normally biases the check valve 22 upward, and is usually placed on a disc 23 of the valve shaft 21, and presses the check valve 22 downward by its own weight, Stainless with the water inlet 27 open And a spherical body 17 formed in. The valve shaft 21, the check valve 22 and the disc 23 constitute a valve portion.

The evaporating dish 6 is connected to the water supply port 27 of the check valve mechanism 16 of the water receiving part 5 via a rubber hose 26 and generates water vapor by heating the heating body 8 from the water supplied from the water receiving part 5. A steam guide tube 9 is provided above the evaporating dish 6 to guide the water vapor upward.
Also, under the steam guide tube 9, there is provided a frustoconical hot water amount reducing member 7 formed of a heat-resistant water resin for reducing the hot water amount of the evaporating dish 6. As a result, the hot water amount is reduced in the evaporating dish 6. The member 7 is interposed.
In addition, the steam guide tube 9 is provided with a hot water reservoir 9a having a volume that can be accommodated when the main body falls down, and the outer periphery of the hot water reducing member 7 follows the shape of the hot water reducing member 7. An evaporation residue adsorbing body 13 having a shape is disposed.

  An air guide cylinder 12 for guiding the air taken in and sent out from the air inlet 10 by the blower fan 11 is provided at the upper part of the steam guide cylinder 9, and the steam and air guide sent from the steam guide cylinder 9 are provided. A mixing chamber 14 for mixing the air sent from the cylinder 12 and a blower outlet 15 for releasing the steam from the mixing chamber 14 to the outside are provided.

Next, the operation of the embodiment configured as described above will be described.
When the water tank 2 is set in the main body 1, the water in the water tank 2 is supplied to the water receiving portion 5 through the water outlet 4 provided in the tank cap 3 and is held at a constant water level by the tank cap 3. In the normal operation, the check valve mechanism 16 below the water receiving unit 5 is opened by the dead weight of the sphere 17, and the water in the water receiving unit 5 passes through the water supply port 27 and the rubber hose 26 to evaporate the dish 6. Water is supplied.

The water level in the evaporating dish 6 is the same as that of the water receiver 5 and is maintained at a height of 50 to 60 mm from the bottom of the evaporating dish 6. And since there is the hot water amount reducing member 7 in the evaporating dish 6, the absolute amount of the hot water in the evaporating dish 6 can be reduced as compared with the case where there is no hot water reducing member 7.
Further, the evaporation residue adsorbing body 13 provided on the outer periphery of the hot water amount reducing member 7 adsorbs the evaporation residue generated by evaporating the water in the evaporation dish 6 to the evaporation residue adsorbing body 13.

  The water vapor generated when the water in the evaporating dish 6 is heated by the heating body 8 is guided upward by the steam guide tube 9. On the other hand, air from the air inlet 10 is guided to the air guide cylinder 12 above the steam guide cylinder 9 by the blower fan 11. In the mixing chamber 14, the air guided by the air guide tube 12 and the steam guided upward by the steam guide tube 9 are mixed and discharged to the outside from the outlet 15.

Next, the operation when the humidifier is turned over to the water tank 2 side will be described with reference to FIGS.
3 is a cross-sectional view of the water receiving portion when the humidifier of the embodiment is turned over to the water tank 2 side, and FIG. 4 is a cross-sectional view of the evaporating dish portion when the humidifier is turned over to the water tank 2 side. is there.
As shown in FIG. 3, since the sphere 17 is detached from the disc 23 of the valve shaft 21 of the check valve mechanism 16 of the water receiving portion 5 when it falls down, water is supplied by the check valve 22 pressed by the coil spring 24. The mouth 27 is closed, and hot water does not flow back from the evaporating dish 6 through the water supply port 27 to the water receiving portion 5, and hot water does not flow out from the water receiving portion 5.
Also, as shown in FIG. 4, hot water in the evaporating dish 6 always flows into the hot water reservoir 9a provided in the steam guide tube 9 when it falls, and hot water having a temperature close to 30 ° C. remains as it is. It does not flow out of the aircraft.

Next, the operation when the humidifier is turned over to the evaporating dish 6 side will be described with reference to FIG.
FIG. 5 is a cross-sectional view when the humidifier according to the embodiment is turned over to the evaporating dish 6 side.
As shown in FIG. 5, the sphere 17 is disengaged from the disc 23 of the valve shaft 21 of the check valve mechanism 16 of the water receiving portion 5 when it falls down, so that water is supplied by the check valve 22 pressed by the coil spring 24. The mouth 27 is closed to prevent water from flowing from the water receiving part 5 through the water supply opening 27 to the evaporating dish 6, and the water from the water receiving part 5 is mixed with the hot water in the hot water reservoir 9a, thereby increasing the amount of hot water. Therefore, the volume of the hot water reservoir 9a can be reduced. Thereby, a humidifier can be made compact.

Next, cleaning of the check valve mechanism 16 will be described with reference to FIG. FIG. 6 is an exploded view of the check valve mechanism 16 of the humidifier according to the embodiment.
As shown in FIG. 6, when a residue 19 generated by humidification is deposited by removing the lid 19 on the upper part of the sphere holder 18, the residue is removed from the sphere holder 18, the sphere 17, and the like.

  As described above, according to the present embodiment, the water supply port 27 of the water receiving portion 5 is provided with the check valve mechanism 16 that opens during normal operation and closes when the main body 1 falls down. Since it is not the structure which opens and closes the valve | bulb by a stick | rod etc., there is no worry of the water leak at the time of normal operation, and when the main body 1 falls, hot water flows backward to the water receiving part 5, and hot water flows out from the water receiving part 5. Can be prevented.

In addition, the check valve mechanism 16 is provided in a holding body 18 having a wide mouth portion 18a whose upper portion is covered with a removable lid 19 and a lower narrow mouth portion, and a narrow mouth portion of the spherical body holding body 18, and is always provided. A valve portion that is urged upward by a coil spring 24, and a sphere 17 that normally presses the valve portion downward by its own weight to open the valve portion, and when the body 1 falls down, disengages from the valve portion and closes the valve portion; So that
When the cover 19 is removed and the residue generated by humidification is accumulated, the residue can be removed from the sphere holder 18, the sphere 17, and the like.
Further, since the hot water amount reducing member 7 is interposed in the evaporating dish 6, the absolute amount of the hot water in the evaporating dish 6 can be reduced as compared with the case where the hot water reducing member 7 is not installed. The volume of the hot water reservoir 9a can also be reduced, the outer shape of the main body is smaller, the hot water can be prevented from flowing out of the machine when the main body falls, and safe humidification can be performed without fear of hot water flowing out during the fall. .

  The water tank 2 also includes a tank cap 3 having a water stop valve 30 that opens and closes the water outlet 4. When the water tank 2 is set on the upper surface of the 19 lid of the check valve mechanism 16, the tank cap 3 is stopped. Since the protrusion 19 a that pushes up the water valve 30 and opens the water stop valve 30 is provided, it is not necessary to separately provide the main body 1 with a protrusion that pushes up the water stop valve 30 of the tank cap 3.

It is sectional drawing of the humidifier which shows embodiment by this invention. It is a principal part enlarged view of FIG. It is sectional drawing of the water receiving part at the time of the fall of the humidifier which shows embodiment by this invention. It is sectional drawing of the evaporating dish part at the time of the fall of the humidifier which shows embodiment by this invention. It is sectional drawing which shows the state which turned down the humidifier of Embodiment 1 by this invention to the evaporating dish side. It is a decomposition | disassembly block diagram of the water receiving part spherical body holder part cover of Embodiment 1 by this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Main body, 2 Water tank, 3 Tank cap, 5 Water receiving part, 6 Evaporation dish, 7 Hot water quantity reducing member, 8 Heating body, 9 Steam guide tube, 9a Hot water sump part, 10 Inlet, 11 Blower, 12 Air guide Cylinder, 13 evaporation residue adsorber, 14 mixing chamber, 15 outlet, 16 check valve mechanism, 16 check valve mechanism, 17 sphere, 18 sphere holder, 19 lid, 19a protrusion, 22 check valve, 24 coil spring, 27 Water supply port, 18a Wide port, 30 Water stop valve.

Claims (2)

A main body having an intake port, a water tank provided in the main body, a water receiving portion for receiving water from the water tank, an evaporating dish for heating water supplied through the water supply port of the water receiving portion, and this evaporation From a steam guide tube that guides steam generated from the dish, a blower fan that takes in air from the intake port, an air guide tube that guides air sent from the blower fan, steam from the steam guide tube and the air guide tube In a humidifier equipped with a mixing chamber for mixing the air and a blower outlet for discharging steam from the mixing chamber to the outside,
The water supply port of the water receiving portion includes a check valve mechanism that opens during normal operation and closes when the main body falls.
The check valve mechanism includes a holding body having an upper wide mouth portion and a lower narrow mouth portion;
A lid that removably covers the wide mouth portion of the holding body;
It provided narrow-mouthed portion of the holding member, and a valve portion which is urged by a constant spring upward,
Normally, the sphere that presses the valve part downward by its own weight to open the valve part, and is detached from the valve part when the main body falls and closes the valve part,
A humidifier characterized by comprising: The water tank includes a tank cap having a water stop valve for opening and closing the water outlet;
2. A protrusion is provided on the upper surface of the lid of the check valve mechanism to open the water stop valve by pushing up the water stop valve of the tank cap when the water tank is set. The humidifier described.

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