JPH07117262B2 - Humidifier - Google Patents

Description

【発明の詳細な説明】 産業上の利用分野 本発明は電熱式の加湿器又は電気ストーブ，電気温風機
に付加される加湿装置に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electric heating type humidifier, an electric stove, or a humidifying device added to an electric hot air blower.

従来の技術 従来の電熱式加湿装置は第３図に示す如く下部に給水口
1aを具備する給水タンク１と、前記給水口1aとチューブ
９により接続され、外面に加熱ヒータ３を具備する蒸発
筒２と、蒸発筒２に固定されて空だき時の温度上昇を検
出して、前記加熱ヒータ３への通電を切る温度過昇防止
器５と、電源の両極間に接続され加湿装置への通電を表
示する表示灯12とにより構成されていた。2. Description of the Related Art A conventional electrothermal humidifier has a water inlet at the bottom as shown in FIG.
A water supply tank 1 equipped with 1a, a water supply port 1a connected to the water supply port 1a by a tube 9, and an evaporation tube 2 equipped with a heater 3 on the outer surface, and an evaporation tube 2 fixed to the evaporation tube 2 to detect a temperature rise during emptying. The temperature overheat protector 5 for cutting off the power supply to the heater 3 and the indicator lamp 12 connected between the two poles of the power supply for displaying the power supply to the humidifying device.

以上の構成により空だき時は蒸発筒２の温度が上昇し、
それを検出して温度過昇防止器５が作動して空だき時の
過熱を防止していた。With the above configuration, the temperature of the evaporation tube 2 rises during emptying,
Upon detecting this, the overheat protector 5 was activated to prevent overheating during emptying.

発明が解決しようとする問題点 しかしながら、上記構成では表示灯６は加熱ヒータ３に
通電するスイッチを入状態にした時から点灯するので、
給水タンク１が空になった空だき状態になっても点灯し
たままで変化がなく、使用者は給水口1aからの蒸気の発
生具合のみでしか給水時期を判断できないため、給水時
期がわかりにくく、しらない間に空気が乾燥してしまう
という問題があった。Problems to be Solved by the Invention However, in the above configuration, since the indicator lamp 6 is turned on when the switch for energizing the heater 3 is turned on,
Even when the water supply tank 1 is empty, it remains lit and does not change, and the user can determine the water supply time only by the amount of steam generated from the water supply port 1a. However, there was a problem that the air would dry before I knew it.

本発明は上記従来の問題点に鑑み、空だき状態を明確に
表示して使用者に給水時期を知らせ、加湿を連続的に行
うことを目的のするものである。In view of the above conventional problems, an object of the present invention is to clearly display the emptying state to inform the user of the water supply timing and to continuously perform humidification.

問題点を解決するための手段 本発明の加湿装置は下部に給水口を有する給水タンク
と、前記給水口とチューブにより下部が接続され、外周
面に加熱ヒータを有し上部に蒸発口を有する蒸発筒と前
記加熱ヒータと直列に接続した前記蒸発筒の温度を検出
する温度過昇防止器を備え、前記温度過昇防止器と並列
に接続した高抵抗負荷の表示灯で構成した空だき警告手
段を設けたものである。Means for Solving the Problems The humidifying device of the present invention is a vaporization tank having a water supply port at a lower part, a water supply port and a tube at a lower part connected to each other, a heater on an outer peripheral surface, and an evaporation port at an upper part. An emptying warning means provided with a temperature overheating prevention device for detecting the temperature of the evaporation tube connected in series with the heating element and the heating heater, and comprising a high resistance load indicator lamp connected in parallel with the temperature overheating prevention device. Is provided.

作用 以上の構成としたために空タンクないしは蒸発筒内の水
が低水位の状態で通電を続けると蒸発筒温度が上昇し温
度過昇防止器がOFFして空だき警告手段と加熱ヒータが
直列接続となり抵抗比で電圧が分圧されるため空だき警
告手段に比べ低抵抗負荷の加熱ヒータの発熱は低下して
過熱を防ぐと共に空だき警告手段により空だき状態であ
ることを使用者に明確に伝え、給水又は使用停止処置を
促す。Due to the above configuration, if the water in the empty tank or the evaporation tube continues to be energized when the water level is low, the evaporation tube temperature rises, the overheat protector turns off, and the emptying warning means and the heater are connected in series. Since the voltage is divided by the resistance ratio, the heat generated by the heater with a low resistance load is lower than that of the emptying warning means to prevent overheating, and the emptying warning means makes it clear to the user. Prompt for water supply or discontinuation of use.

実施例 以下本発明の一実施例について図面を参照しながら説明
する。Embodiment One embodiment of the present invention will be described below with reference to the drawings.

第２図は本発明の一実施例における電熱式加湿装置の構
造断面図を示すものである。FIG. 2 is a structural sectional view of an electrothermal humidifier according to an embodiment of the present invention.

第２図において、１は上部に排水口1bと下部に給水口1a
を具備する給水タンク、２はパイプ状の蒸発筒、３は蒸
発筒の外面に捲付け固定された加熱ヒータ、4a,4bは絶
縁シート、５は自動復帰形の温度過昇防止器、６は高抵
抗11と表示灯12で構成する空だき警告手段、７は注水口
兼蒸発口、８は電源スイッチ、９は前記給水タンク１の
給水口1aと蒸発筒を接続するチューブ、10は前記注水口
兼蒸発口７と蒸発筒２を接続する接続パイプ、13は本体
である。In FIG. 2, 1 is a drain port 1b at the upper part and a water supply port 1a at the lower part.
A water supply tank equipped with 2 is a pipe-shaped evaporation tube, 3 is a heater wound around and fixed to the outer surface of the evaporation tube, 4a and 4b are insulating sheets, 5 is an automatic reset type overheat protector, and 6 is An emptying warning means composed of a high resistance 11 and an indicator lamp 12, 7 is a water injection port / evaporation port, 8 is a power switch, 9 is a tube connecting the water supply port 1a of the water supply tank 1 to the evaporation tube, and 10 is the injection port. A connection pipe 13 for connecting the water / evaporation port 7 and the evaporation tube 2 is a main body.

第１図は上記本発明一実施例における電気配線図を示す
もので加熱ヒータ３は温度過昇防止器５と電源スイッチ
８と直列に接続され電源に接続される。又空だき警告手
段６は温度過昇防止器５の両端子間に接続されている。FIG. 1 shows an electric wiring diagram in the above-described embodiment of the present invention. The heater 3 is connected in series with an overheat preventive device 5 and a power switch 8 and is connected to a power source. The emptying warning means 6 is connected between both terminals of the overheat protector 5.

以上のように構成された電熱式加湿装置について、その
動作を説明する。The operation of the electrothermal humidifier configured as described above will be described.

まず注水口兼蒸発口７に水を注水すると蒸発筒２を経
て、給水タンク１内の空気を排水口1bから押し出しなが
ら水が入り蓄えられる。次に電源スイッチ８を「入」に
すると加熱ヒータ３に電流が流れ発熱して蒸発筒２内の
水を加熱して水蒸気を発生させ、発生した水蒸気は蒸発
筒２内の加熱された空気の上昇気流によって注水口兼蒸
発口７より外部へ放出し、室内空気に分散吸収されて湿
度を高める。この時、温度過昇防止器５は閉の状態で表
示灯12は短絡され点灯していない。First, when water is injected into the water injection port / evaporation port 7, the air in the water supply tank 1 is pushed out from the water discharge port 1b through the evaporation tube 2, and the water is stored therein. Next, when the power switch 8 is turned “ON”, an electric current flows through the heater 3 to generate heat and heat the water in the evaporation tube 2 to generate steam, and the generated steam is converted into the heated air in the evaporation tube 2. It is discharged to the outside from the water injection port / evaporation port 7 by the ascending air current and is dispersed and absorbed in the room air to increase the humidity. At this time, the overheat protector 5 is closed and the indicator lamp 12 is short-circuited and is not lit.

蒸発筒２内に水がある間は、加熱ヒータ３よりの熱は水
の加熱に費やされるため、蒸発筒２の温度は蒸気温度と
ほぼ同等で安定しているが、加湿状態が続き給水タンク
１内の水位が下がり、水がない状態になると、加熱ヒー
タの熱は蒸発筒２を加熱するため、蒸発筒２の温度が上
昇する。温度過昇防止器５は蒸発筒２の表面に接触した
状態で設けられ、自己回復帰型のサーモスタットで構成
しているので、蒸発筒２の温度上昇により、温度過昇防
止器５の温度が上昇し、接点をOFFする。温度過昇防止
器５がOFF状態になると、表示灯12は高抵抗11と共に加
熱ヒータ３と直列接続となり、空だき警告手段６の表示
灯12が点灯し、給水タンク１が空状態であることを知ら
せると共に、低抵抗負荷の加勢ヒータ３は印可電圧が極
めて小となりほとんど発熱しなくなり、蒸発筒２の加熱
を防止する。While there is water in the evaporation tube 2, the heat from the heater 3 is consumed to heat the water, so the temperature of the evaporation tube 2 is stable at about the same temperature as the steam temperature, but the humidification state continues and the water tank When the water level in 1 falls and there is no water, the heat of the heater heats the evaporation tube 2, so the temperature of the evaporation tube 2 rises. Since the overheat protector 5 is provided in contact with the surface of the evaporation tube 2 and is constituted by a self-returning type thermostat, the temperature rise of the evaporation tube 2 causes the temperature of the overheat prevention apparatus 5 to rise. Ascend and turn off the contact. When the overheat protector 5 is turned off, the indicator lamp 12 is connected in series with the heating heater 3 together with the high resistance 11, the indicator lamp 12 of the emptying warning means 6 is turned on, and the water supply tank 1 is empty. At the same time, the energizing heater 3 having a low resistance load has an extremely small applied voltage and hardly generates heat, thereby preventing the evaporation tube 2 from being heated.

再び給水タンク１に給水すると、温度過昇防止器５は温
度が下がり接点がONとなり、空だき警告主段６の表示灯
12は短絡されて消灯し、加熱ヒータ３に全電圧が印可さ
れ蒸発筒２が再び加熱され加湿を継続させる。When water is supplied to the water supply tank 1 again, the temperature of the overheat protector 5 falls and the contact is turned on, and the indicator lamp of the empty warning main stage 6
12 is short-circuited and turned off, and the full voltage is applied to the heater 3 to heat the evaporation tube 2 again and continue the humidification.

以上のように本実施例によれば空タンクないしは低水位
で通電を続ける（空だき状態）と温度過昇防止器５が作
動して過熱を防ぐだけでなく表示灯12が点灯して空だき
状態であることを使用者に明確に伝達することができ
る。As described above, according to the present embodiment, when the energization is continued in the empty tank or the low water level (empty state), the overheat protector 5 is activated to prevent overheating, and the indicator lamp 12 is turned on to empty the air. It is possible to clearly inform the user of the state.

なお実施例では空だき警告手段を表示灯とした空だき警
告手段はブザーでもよく、ブザーを使用すれば使用者が
注意していなくても聞こえより明確に空だき状態を伝え
ることができる。In the embodiment, the emptying warning means using the emptying warning means as an indicator light may be a buzzer, and if the buzzer is used, the emptying state can be clearly transmitted even if the user is not careful.

発明の効果 以上のように、本発明は空だき警告手段を温度過昇防止
器と並列に接続するのみで温度過昇防止器が作動して過
熱を防止するのみでなく、表示灯で警告表示をするた
め、使用者に給水時期を明確に伝えることができる。ま
た、空だき状態の確認が容易であるため表示灯での警告
表示に基づき給水タンクに給水することにより連続的な
加湿機能の発揮ができる。さらに、加湿が不要は場合は
表示灯での警告表示に基づき電源スイッチを切ることに
より、加熱ヒータへの通電をOFFするので、そのまま放
置され再度空だき状態のままで加熱ヒータへ再通電する
ことがなくなり、電力の浪費を防ぐことができる。EFFECTS OF THE INVENTION As described above, the present invention not only prevents the overheat protector from operating by only connecting the emptying warning means in parallel with the overheat protector but also prevents the overheat from occurring, and the warning light is displayed by the indicator lamp. Therefore, it is possible to clearly inform the user of the timing of water supply. Further, since it is easy to check the empty state, it is possible to exert a continuous humidifying function by supplying water to the water supply tank based on the warning display of the indicator light. Furthermore, when humidification is not required, the power to the heating heater is turned off by turning off the power switch based on the warning display on the indicator lamp.Therefore, leave it as it is and re-energize the heating heater in the empty state again. It is possible to prevent waste of electric power.

【図面の簡単な説明】[Brief description of drawings]

第１図は本発明一実施例である加湿装置の回路図、第２
図は同加湿装置の断面図、第３図は従来の加湿装置の断
面図である。 １……給水タンク、1a……給水口、1b……排水口、２…
…蒸発筒、３……加熱ヒータ、4a,4b……絶縁シート、
５……温度過昇防止器、６……空だき警告手段、７……
注水口兼蒸発口、８……電源スイッチ、９……チュー
ブ、10……接続パイプ、11……高抵抗、12……表示灯、
13……本体。FIG. 1 is a circuit diagram of a humidifier according to an embodiment of the present invention, FIG.
FIG. 3 is a sectional view of the humidifier, and FIG. 3 is a sectional view of a conventional humidifier. 1 ... Water tank, 1a ... Water inlet, 1b ... Drain port, 2 ...
… Evaporation tube, 3 …… Heating heater, 4a, 4b …… Insulation sheet,
5 ... Overheat protector, 6 ... Empty warning means, 7 ...
Water injection port / evaporation port, 8 ... power switch, 9 ... tube, 10 ... connecting pipe, 11 ... high resistance, 12 ... indicator light,
13 …… Main body.

Claims (1)

【特許請求の範囲】[Claims] 【請求項１】下部に、給水口を有する給水タンクと、前
記給水口とチューブにより下部が接続され、外周面に加
熱ヒータを有し、上部に蒸発口を有する蒸発筒と、前記
加熱ヒータと直列に接続した前記蒸発筒の温度を検出す
る温度過昇防止器を備え、前記温度過昇防止器と並列に
接続した高抵抗負荷の表示灯で構成した空だき警告手段
を設けた加湿装置。1. A water supply tank having a water supply port at a lower portion, a water supply port and a lower portion connected by a tube, a heater is provided on an outer peripheral surface, and an evaporation tube having an evaporation port at an upper portion, and the heater. A humidification device comprising an overheat protector for detecting the temperature of the evaporation cylinder connected in series, and provided with an emptying warning means constituted by a high resistance load indicator lamp connected in parallel with the overheat protector.