JPS6143611B2 - - Google Patents
Info
- Publication number
- JPS6143611B2 JPS6143611B2 JP14744678A JP14744678A JPS6143611B2 JP S6143611 B2 JPS6143611 B2 JP S6143611B2 JP 14744678 A JP14744678 A JP 14744678A JP 14744678 A JP14744678 A JP 14744678A JP S6143611 B2 JPS6143611 B2 JP S6143611B2
- Authority
- JP
- Japan
- Prior art keywords
- water
- heater
- temperature
- steam
- tank
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 41
- 238000001514 detection method Methods 0.000 claims description 22
- 238000009835 boiling Methods 0.000 description 7
- 238000010304 firing Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 3
- 230000035622 drinking Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000001704 evaporation Methods 0.000 description 3
- 230000008020 evaporation Effects 0.000 description 3
- 239000011810 insulating material Substances 0.000 description 3
- 238000012856 packing Methods 0.000 description 3
- 230000002265 prevention Effects 0.000 description 3
- 230000002093 peripheral effect Effects 0.000 description 2
- 241001122767 Theaceae Species 0.000 description 1
- 230000002159 abnormal effect Effects 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 235000013350 formula milk Nutrition 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 239000011491 glass wool Substances 0.000 description 1
- 235000008446 instant noodles Nutrition 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 229910000859 α-Fe Inorganic materials 0.000 description 1
Landscapes
- Instantaneous Water Boilers, Portable Hot-Water Supply Apparatuses, And Control Of Portable Hot-Water Supply Apparatuses (AREA)
- Cookers (AREA)
Description
本発明は一度沸騰した湯を、自動的に高温で保
温する湯沸し器に関するものである。
各家庭、各職場等では多量の湯が使われてお
り、飲食物用としては、その度ごとに電気コンロ
あるいはガスコンロ等で湯を沸かすか、あるいは
それらで沸かした湯を魔法瓶で保温して使用して
いる。しかしその度ごとに沸すのは不便であり、
また魔法瓶においては長時間保温すると湯温は低
くなり、コーヒ等を飲むには不適な温度までにさ
める。本発明の湯沸し器は常に湯温を例えば90℃
以上の高温にかつ安全に保つことを目的とするも
のである。
上記問題点を解決するために本発明は、主・補
助ヒータでタンク内の水を加熱沸騰させ、その沸
騰時の蒸気を本体外へ導く通路に検知面をのぞま
せた検知素子により、沸騰時の蒸気を検知して主
ヒータをON、OFF制御するとともに、補助ヒー
タを連続通電し、常に沸騰に近い温度の湯を提供
できるようにしたものである。
以下本発明の一実施例について説明する。図に
おいて1は湯沸し器の本体で、基台2の上にのせ
られその前面には前枠3が設けられ、上には上枠
4が載置されている。5は内容器であり、数本の
ネジ6により基台2の方向へ引張り力が加えられ
て外周鍔部が上枠4に係合している。また上枠4
と内容器5の外周鍔部間にゴムパツキング7があ
り、本体1と内容器5の間に水が侵入しない構造
となつている。また、内容器5と本体1の間に
は、ある程度のガラスウール等の断熱材8を装備
している。9は内容器5に装備した補助ヒータで
ある。そして内容器5の底面の上にはスプリング
10を介して主ヒータ11を鋳込んだアルミの熱
板12があり、この熱板12の上には着脱自在に
タンク13が載せられている。タンク13と内容
器5との間の気密は、タンク13の鍔部にゴムパ
ツキング14を取付けその部分を外ぶた15に設
けた数個所15′で押えることによつて保たれて
いる。またタンク13の前方にはガラス管よりな
る水位計16が取付けられ、その水位計16の前
方の内容器5と前枠3の部分は、前記水位計16
が見えるような構造となつている。また17はタ
ンク13内に挿入された注湯用のポンプで、たと
えば軸流ポンプよりなつている。18はポンプ1
7とそのモータ部20との着脱連結部である。1
9はタンク13の開口部の一部をおおつた内ぶた
で、ポンプ17を取付けており、ポンプ17とと
もに扱えるものである。そして前記したモータ部
20は、たとえば24Vの直流モータからなり、外
ぶた15内に設けられ、蒸気のかからない様なシ
ール構造となつている。21はモータ部20のス
イツチである。内ぶた19の一部には蒸気の抜け
る穴22を設けてあり、また上枠4の片隅には蒸
気の通路23が設けられている。24は通路23
に検知面をのぞませた蒸気の検知素子である。2
5は万一の空焼時の異常温度上昇を防止するため
熱板12のセンターに設けたフエライトサーモな
どの空焼防止装置で、これは安全のため手動復帰
式としている。26はその手動復帰レバーであ
り、27はそのスイツチ接点である。なお電気回
路は第3図に示すとおりであり、29はダイオー
ド、30はトランスである。
次に上記構成の湯沸し器の作用・動作を説明す
る。まず外ぶた15、内ぶた19をあけ、水(例
えば2.5)をタンク13内に入れ、内ぶた1
9、外ぶた15をしめ第1図の状態にセツトす
る。次に、レバー26を押し主ヒータ11(例え
ば600W)と補助ヒータ9(例えば50W)に通電
を行う。通電後t1分後(30分以内)にタンク13
内の水は沸騰し、蒸気が発生し通路23を通り外
へ蒸気が吹き出す。その時検知素子24の蒸気検
知部の温度は急激に上昇し、数秒の間に50〜60℃
上昇し、検知素子24のOFF温度TOFF(例80
℃)以上になり、検知素子24は切れ主ヒータ1
1への通電が停止する。この様に蒸気検知部の温
度上昇は非常に早いので、検知素子24のOFF
温度TOFFが10℃程度ばらついても、ほとんど影
響はない。主ヒータ11がOFFした後は、連続
通電されている補助ヒータ9と、断熱材8とによ
つて保温されるが、湯温は非常にゆつくり下が
り、その間に蒸気検知部は蒸気がなくなり、かつ
外気により冷却され、湯温よりも急激に下がる。
検知素子24のON温度TON(例えば55℃)に達
すると、再び主ヒータ11がONし湯は沸騰す
る。湯沸し器はこの動作を繰り返しつつ保温す
る。この時、検知素子24の寿命を長くするため
ON−OFFサイクルがいかなる条件でもt2分(20
以上)となり、かつ湯温は90℃以上で保温される
ように補助ヒータ9の容量、および検知素子24
のON温度TONを設定する。また補助ヒータ9の
容量は、湯の蒸発による減少をなるべく少くする
ように設定を行う。次にスイツチ21をONする
と、ポンプ17により注湯口28より熱い湯が注
がれる。また残水量は水位計16により確認で
き、万一空焼を行つた場合は空焼防止装置25が
働き、主ヒータ9への通電は断れる。空焼をし空
焼防止装置25がOFFした時は、再び水を入れ
るなどして冷却し、レバー26を押すと、ヒータ
11,9は再び通電される。
ここで、蒸気検知における特性上の問題は、室
温変動、水量変動に大きく影響される。すなわち
蒸気検知部の温度が湯温に関係の少いことであ
る。この問題を解決する手段として、断熱材8等
により保温効果を高め、しかも数十ワツトの補助
ヒータ9を設けることによつて、水量が少ない時
の冷却速度を遅くすることにより、室温変動、水
量変動をあまり受けず、湯温を高く保温できる。
実験値で示すと次のとおりである。
The present invention relates to a water heater that automatically keeps hot water at a high temperature once it has been boiled. A large amount of hot water is used in each home, workplace, etc., and for drinking and drinking, it must be boiled each time on an electric stove or gas stove, or the hot water can be kept warm in a thermos flask. are doing. However, it is inconvenient to boil it every time.
In addition, if a thermos bottle is kept warm for a long time, the water temperature will drop to a temperature unsuitable for drinking coffee, etc. The water heater of the present invention always maintains a water temperature of, for example, 90°C.
The purpose is to maintain the temperature at a higher temperature and safely. In order to solve the above-mentioned problems, the present invention boils water in a tank using main and auxiliary heaters, and uses a detection element whose detection surface looks into a passage that guides the boiling steam to the outside of the main body to detect the boiling point. The system detects steam and turns the main heater on and off, and also continuously energizes the auxiliary heater to constantly provide hot water at a temperature close to boiling. An embodiment of the present invention will be described below. In the figure, reference numeral 1 denotes the main body of the water heater, which is placed on a base 2, with a front frame 3 provided on the front thereof, and an upper frame 4 placed on top. Reference numeral 5 denotes an inner container, and a tensile force is applied toward the base 2 by several screws 6, so that the outer peripheral flange engages with the upper frame 4. Also upper frame 4
There is a rubber packing 7 between the outer peripheral flange of the inner container 5 and the inner container 5, so that water does not enter between the main body 1 and the inner container 5. Further, a certain amount of heat insulating material 8 such as glass wool is provided between the inner container 5 and the main body 1. 9 is an auxiliary heater installed in the inner container 5. On the bottom surface of the inner container 5 is an aluminum hot plate 12 into which a main heater 11 is cast via a spring 10, and a tank 13 is removably mounted on this hot plate 12. Airtightness between the tank 13 and the inner container 5 is maintained by attaching a rubber packing 14 to the flange of the tank 13 and pressing the rubber packing 14 at several points 15' provided on the outer lid 15. Further, a water level gauge 16 made of a glass tube is attached to the front of the tank 13, and the inner container 5 and front frame 3 in front of the water level gauge 16 are connected to the water level gauge 16.
The structure is such that you can see it. Reference numeral 17 denotes a pouring pump inserted into the tank 13, which is, for example, an axial flow pump. 18 is pump 1
7 and its motor section 20. 1
Reference numeral 9 denotes an inner lid that covers a part of the opening of the tank 13, to which the pump 17 is attached, and can be used together with the pump 17. The motor section 20 is, for example, a 24V DC motor, and is provided inside the outer cover 15, with a sealed structure to prevent steam from entering. 21 is a switch of the motor section 20. A hole 22 for steam to escape is provided in a part of the inner lid 19, and a steam passage 23 is provided in one corner of the upper frame 4. 24 is passage 23
This is a vapor detection element with the detection surface visible. 2
Reference numeral 5 denotes a dry firing prevention device such as a ferrite thermometer installed at the center of the hot plate 12 in order to prevent an abnormal temperature rise in the event of dry firing, and this is a manual reset type for safety. 26 is its manual return lever, and 27 is its switch contact. The electric circuit is as shown in FIG. 3, where 29 is a diode and 30 is a transformer. Next, the function and operation of the water heater having the above configuration will be explained. First, open the outer lid 15 and inner lid 19, pour water (for example, 2.5 liters) into the tank 13, and then open the inner lid 1.
9. Close the outer lid 15 and set it to the state shown in FIG. Next, the lever 26 is pressed to energize the main heater 11 (for example, 600W) and the auxiliary heater 9 (for example, 50W). Tank 13 is turned on after 1 minute (within 30 minutes) after energization.
The water inside boils, steam is generated, and the steam is blown out through the passage 23. At that time, the temperature of the vapor detection part of the detection element 24 rose rapidly to 50 to 60℃ in a few seconds.
The OFF temperature T OFF of the sensing element 24 increases (Example 80
℃), the detection element 24 indicates that the main heater 1 is disconnected.
Power to 1 is stopped. In this way, the temperature of the vapor detection section rises very quickly, so the detection element 24 should be turned off.
Even if the temperature T OFF varies by about 10°C, there is almost no effect. After the main heater 11 is turned off, the temperature is kept by the auxiliary heater 9, which is continuously energized, and the heat insulating material 8, but the temperature of the water drops very slowly, and during that time, the steam detection section runs out of steam. It is also cooled by the outside air, and the temperature drops more rapidly than the water temperature.
When the ON temperature of the sensing element 24 reaches T ON (for example, 55° C.), the main heater 11 is turned ON again and the water boils. The water heater keeps it warm by repeating this operation. At this time, in order to extend the life of the sensing element 24,
The ON-OFF cycle is t 2 minutes (20 minutes) under any conditions.
above), and the capacity of the auxiliary heater 9 and the detection element 24 are adjusted so that the water temperature is kept at 90°C or higher.
Set the ON temperature T ON . Further, the capacity of the auxiliary heater 9 is set so as to minimize the decrease in hot water due to evaporation. Next, when the switch 21 is turned on, hot water is poured from the spout 28 by the pump 17. Further, the amount of remaining water can be confirmed by the water level gauge 16, and in the event that dry firing is performed, the dry burning prevention device 25 is activated and the power supply to the main heater 9 is cut off. When dry firing is performed and the dry firing prevention device 25 is turned off, the heaters 11 and 9 are energized again when the lever 26 is cooled down by adding water or the like and the lever 26 is pressed. Here, characteristic problems in steam detection are greatly affected by room temperature fluctuations and water volume fluctuations. In other words, the temperature of the steam detection section has little relation to the water temperature. As a means to solve this problem, the heat retention effect is increased by using a heat insulating material 8, etc., and by providing an auxiliary heater 9 of several tens of watts, the cooling rate is slowed down when the amount of water is low. It is able to keep the water temperature high without being affected by fluctuations much.
The experimental values are as follows.
【表】
この制御の効果として、第5図イのように沸騰
検知ができ、湯温を高く保持することができ、し
かも保温時の通電時間が短いため、蒸発量が少な
いことが挙げられる。しかし第5図ハのように検
知素子のデイフアレンシヤルを小さくする方法を
とると、ヒータのON−OFFサイクルが短いた
め、蒸発量が多く、また検知素子のスイツチの寿
命もより多い回数を保証しなければならない。24
時間使用で、5年間保証とすれば1cycle約10分と
なり約30万回の開閉回数の寿命が検知素子に要求
されるが、実際はそれに耐えうる安価なものはな
い。また第5図ロのように補助ヒータ9に通電し
ない場合は、湯温を高く保つことができず使用上
問題が残るものである。
上記したように本発明湯沸し器は、主・補助ヒ
ータを有し、主ヒータは沸騰時の蒸気を本体外へ
導く通路に検知面をのぞませ沸騰時の蒸気を検知
する検知素子によりON−OFF制御され、補助ヒ
ータは連続通電するものであるから、湯は必ず沸
騰ししかも高い湯温を保つことができ、コーヒ、
紅茶はもちろん、即席めん等に用いることがまた
沸騰により殺菌されるため、乳児のミルク用とし
ても使える。しかも蒸気検知式であるため、検知
素子の管理を厳しく行なう必要がない。さらに検
知素子は検知面が蒸気通路に面しているため、周
囲の影響は受けがたく、確実な制御ができる。[Table] The effects of this control are that boiling can be detected as shown in Fig. 5A, the water temperature can be kept high, and the amount of evaporation is small because the energization time during heat retention is short. However, if a method is used to reduce the differential of the sensing element as shown in Figure 5 (c), the ON-OFF cycle of the heater is short, resulting in a large amount of evaporation, and the life of the sensing element switch is also increased. must be guaranteed. twenty four
If the sensor is guaranteed for 5 years based on time use, one cycle is about 10 minutes, and the detection element is required to have a lifespan of about 300,000 openings and closings, but in reality, there are no inexpensive devices that can withstand this. Furthermore, if the auxiliary heater 9 is not energized as shown in FIG. As described above, the water heater of the present invention has a main heater and an auxiliary heater, and the main heater is turned on by a detection element that detects steam during boiling by looking into a passage that guides steam during boiling out of the main body. The auxiliary heater is energized continuously, so the water always boils and maintains a high water temperature.
It can be used not only for tea but also for instant noodles, etc., and because it is sterilized by boiling, it can also be used for infant milk. Moreover, since it is a vapor detection type, there is no need to strictly manage the detection element. Furthermore, since the sensing surface of the sensing element faces the steam passage, it is less affected by the surrounding environment and can be controlled reliably.
第1図は本発明湯沸し器の一実施例を示し、a
はその側断面図、bはその平面図、第2図は第1
図bのA−A′断面図、第3図は電気回路図、第
4図は湯温と蒸気検知部温度との関係を示す特性
図、第5図は湯温の制御特性図である。
9……補助ヒータ、11……主ヒータ、13…
…タンク、24……検知素子。
FIG. 1 shows an embodiment of the water heater of the present invention, a
is its side sectional view, b is its plan view, and Figure 2 is the first
FIG. 3 is an electric circuit diagram, FIG. 4 is a characteristic diagram showing the relationship between hot water temperature and steam detection section temperature, and FIG. 5 is a hot water temperature control characteristic diagram. 9...Auxiliary heater, 11...Main heater, 13...
...Tank, 24...Detection element.
Claims (1)
沸騰させる主・補助ヒータと、沸騰時の蒸気を本
体外へ導く通路に検知面をのぞませ、沸騰時の蒸
気を検知する検知素子とを備え、この検知素子に
より主ヒータをON、OFF制御するとともに、補
助ヒータを連続通電するようにした湯沸し器。1. A tank that stores water, main and auxiliary heaters that heat and boil the water in this tank, and a detection element that detects steam when it boils, with its detection surface facing into the passage that guides the steam when it boils out of the main body. This water heater uses this detection element to control the main heater on and off, as well as to continuously energize the auxiliary heater.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP14744678A JPS5572756A (en) | 1978-11-28 | 1978-11-28 | Hot water supplier |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP14744678A JPS5572756A (en) | 1978-11-28 | 1978-11-28 | Hot water supplier |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5572756A JPS5572756A (en) | 1980-05-31 |
JPS6143611B2 true JPS6143611B2 (en) | 1986-09-29 |
Family
ID=15430521
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP14744678A Granted JPS5572756A (en) | 1978-11-28 | 1978-11-28 | Hot water supplier |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5572756A (en) |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS60129235U (en) * | 1984-02-10 | 1985-08-30 | 三菱電機株式会社 | electric pot |
JPH0646419Y2 (en) * | 1984-04-28 | 1994-11-30 | タイガー魔法瓶株式会社 | Boiling type electric hot water storage container |
JPS6196361A (en) * | 1984-10-15 | 1986-05-15 | Sanyo Electric Co Ltd | Water heater |
JPS6135631U (en) * | 1985-08-02 | 1986-03-05 | タイガー魔法瓶株式会社 | electric water heater |
JPH0328845Y2 (en) * | 1985-10-05 | 1991-06-20 | ||
JPS62148221U (en) * | 1986-03-13 | 1987-09-19 | ||
JPH056918Y2 (en) * | 1987-01-16 | 1993-02-22 | ||
JPH0713612Y2 (en) * | 1991-06-19 | 1995-04-05 | タイガー魔法瓶株式会社 | Electric hot water storage container |
-
1978
- 1978-11-28 JP JP14744678A patent/JPS5572756A/en active Granted
Also Published As
Publication number | Publication date |
---|---|
JPS5572756A (en) | 1980-05-31 |
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