JP2578600Y2 - humidifier - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a humidifier for humidifying a room or the like by evaporating and evaporating a liquid.

[0002]

2. Description of the Related Art In general, there is known a type in which an evaporating dish for storing a certain amount of water is heated to evaporate and evaporate water to humidify a room. Conventionally, an electric heater is used as a heating means of the evaporating dish in this type of humidifier, and heats an evaporating dish formed by aluminum die casting or the like. A plurality of electric heaters are provided so that the user can arbitrarily select the amount of vaporization. The heater is energized so that one heater is energized when weak humidification is performed and two heaters are energized during strong humidification. Is known.

[0003]

By the way, in the humidifier in which the amount of vaporization can be selected as described above, the time from when the power is turned on to when the water is vaporized depends on the case where the weak humidification is performed and the case where the strong humidification is performed. It was about twice as different from when it was performed, and the user was not satisfied.

[0004]

In order to solve such a problem, the present invention provides an evaporating dish for storing water, a plurality of heating means for heating the evaporating dish, In a humidifier provided with a selection means for selecting non-energization and a power switch, a detection means for detecting that water stored in the evaporating dish has started to evaporate is provided, and the detection is performed when a power switch is turned on. The present invention provides a humidifier provided with a control circuit for energizing all of the plurality of heating means until vaporization is detected by the means, and energizing only the heating means selected by the selection means when vaporization starts.

[0005]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is an internal sectional view of a humidifier provided with the present invention. Reference numeral 1 denotes a casing, and an upper plate 2 is attached to an upper portion to form a humidifier main body, and the inside is partitioned into a vertical space by a middle plate 3. On one side of the upper chamber portion 1a of the upper and lower space partitioned in this way, a frame 4 having an opening hole in the top portion is mounted, and a steam chamber 4a is formed. Of the water supply tank 5 is provided. Reference numeral 7 denotes an evaporating dish with a heating device 6 attached to the outer periphery, which is attached via a flange to a bottom opening communicating with the steam chamber 4a. A bimetal thermoswitch is attached to the flange of the evaporating dish 7 and a water supply boss 7a is provided at the bottom thereof. Numeral 8 is vertically installed facing the evaporating dish 7, and the frame 4
The guide tube communicates with the top opening, and the top is opened, and a plurality of intake holes 8a are formed in the peripheral surface.

Numeral 9 denotes a water reservoir communicating with a water supply boss 7a of the evaporating dish 7 via a connecting pipe 10, and a rib 13 for pushing up a valve body 12 provided in a water supply cap 11 of the water supply tank 5 and a float for detecting a constant water level. A switch 14 is provided. Therefore, the water storage section 9 stores the makeup water from the water supply tank 5 and supplies the water to the evaporating dish 7 through the connection pipe 10. In addition, water at a constant water level is always stored in the water storage section 9 and the evaporating dish 7 by the float switch 14 provided in the water storage section 9.

A fan device 15 is provided in the lower chamber 1b of the upper and lower spaces defined by the middle plate 3.
, And communicates with the steam chamber 4 a through the air passage 17. Reference numeral 18 denotes a blower tube which stands in the steam chamber 4 a in communication with the blower passage 17, and the blowout port 1 opened to the frame 4 side.
Air is blown into the steam chamber 4a from 8a. The wind thus introduced circulates in the steam chamber 4a, and is taken into the intake hole 8 of the guide cylinder 8.
The steam generated by the evaporating tray 7 is taken up from the a and rises along the guide tube 8 and is discharged into the room from the blowing nozzle 19 fitted to the upper end of the guide tube 8. Reference numeral 20 denotes a switch unit, which is provided on a side surface of the main body and has a power switch 20
a and a humidification amount selection switch 20b for setting the degree of humidification.

Next, the vicinity of the evaporating dish 7 will be described in detail with reference to FIG. As described above, the heating device 6 is attached to the outer peripheral surface of the evaporating dish 7. This heating device 6
Two electric heaters 6a having the same capacity (here, 200 W)
And 6b are formed by a band heater sandwiched between mica plates 6c having excellent heat resistance and insulation properties. Although two heaters are used here, it is possible to appropriately set the strength level by changing the number of heaters.

Water is supplied to the evaporating dish 7 from a connecting pipe 10 connected to a water supply boss 7a at the bottom and is kept at a constant water level. This water is heated by the heating device 6,
Is made of aluminum die-casting, it may be thermally contracted by heating, and the heating device 6 may fall off. Therefore, the bush nut 22 is attached to the bottom of the evaporating dish 7 so as to protrude. Further, bimetal switches 21a and 21b are mounted on the left and right sides of a flange 7b for mounting the evaporating dish 7 to the middle plate 1a. Among them, the switch 21a is a safety device for preventing the evaporating dish 7 from being cooked in an empty state, and cuts off the power supply to the electric heaters 6a and 6b when the temperature becomes abnormally high (125 ° C.). The switch 21b detects the temperature of the evaporating dish 7 (about 90 ° C.) when the water in the evaporating dish 7 evaporates. still,
The switches 21a and 21b are normally-closed switches, and are opened when the above-mentioned respective temperatures are detected to cut off the power supply.

FIG. 3 is a wiring circuit diagram of the present invention. This circuit is formed by connecting a power switch 20a and a bimetal switch 21a in series from a power supply, and connecting heaters 6a and 6b and a motor 16 for driving the fan device 15 in parallel. Further, a bimetal switch 21b and a humidification amount selection switch 20b are interposed in parallel on an electric path AB for supplying electricity to the heater 6b, and the heater 6b is switched between the two switches.

The operation of the present invention thus configured will be described. When the power switch 20a of the main body is turned on, the heater 6
a, 6b to heat the evaporating dish 7 and the motor 1
6, the fan device 15 is driven to blow air into the steam chamber 4a. When the evaporating dish 7 is heated and reaches a temperature at which water evaporates, the bimetal switch 21b is turned off. At this time, when the switch 20b for selecting the level of humidification, which is connected in parallel with the bimetal switch 21b, is not turned on, the power supply to the heater 6b is cut off and humidification with a small humidification amount is performed only by the heater 6a. On the other hand, when the switch 20b is ON, the energization to the heater 6b is continued, and humidification with a large humidification amount is performed by the two heaters. Therefore,
Until the bimetal switch 21b is turned off (that is, until the temperature at which water evaporates), the two heaters 6a and 6b heat the heat regardless of the humidification level selected by the user.
Thereafter, the desired humidification amount selected by the selection switch 20b is given. Therefore, even if you choose strong humidification,
Even when weak humidification is selected, water can be vaporized in the same time, and poor start-up when weak humidification is selected can be eliminated.

It should be noted that the present invention is not limited to the above embodiment, and various embodiments can be considered. For example, a relay may be used in place of the bimetal switch 21b to energize the two heaters for a predetermined period of time, and then energize the heaters according to the selection of strength.

[0013]

[Effects of the Invention] As described above, the present invention is configured to store water.
Evaporating dish for heating and a plurality of heating means for heating the evaporating dish
And energizing / de-energizing the plurality of heating means.
In a humidifier provided with a selection means and a power switch,
The water stored in the evaporating dish has started to evaporate
Detection means to detect that the power switch has been turned on.
Until the detection means detects vaporization, the plurality of heating
Energize all of the means, and when they start to evaporate,
A heater with a control circuit that energizes only the selected heating means
Therefore, the amount of humidification performed by driving all the heating means is large.
In the case of humidification, only a part of the heating means is driven.
Even in the case of humidification with a small amount of moisture,
All the heating means are driven, and the same rise
The humidification can be started in a short time .

[Brief description of the drawings]

FIG. 1 is a sectional view showing an internal configuration of a humidifier according to an embodiment of the present invention.

FIG. 2 is an explanatory diagram in which the vicinity of an evaporating dish 7 of the humidifier in FIG. 1 is enlarged.

FIG. 3 is a wiring diagram of the humidifier in FIG.

[Explanation of symbols]

 6a, 6b Electric heater as heating means 7 Evaporating dish 20b Humidification amount selection switch as selection means 21b Bimetal switch as detection means

Claims (1)

(57) [Scope of request for utility model registration] An evaporating dish for storing water , a plurality of heating means for heating the evaporating dish, and energization of the plurality of heating means
In a humidifier provided with a selection means for selecting / non-energization and a power switch, water stored in the evaporation dish is vaporized.
A detection means is provided to detect when
From when the power switch is turned on until vaporization is detected by the detection means.
Then, all of the plurality of heating means were energized and began to evaporate
Control to energize only the heating means selected by the selection means
Humidifier, characterized in that it comprises a circuit.