JPS6115974B2 - - Google Patents
Info
- Publication number
- JPS6115974B2 JPS6115974B2 JP12993081A JP12993081A JPS6115974B2 JP S6115974 B2 JPS6115974 B2 JP S6115974B2 JP 12993081 A JP12993081 A JP 12993081A JP 12993081 A JP12993081 A JP 12993081A JP S6115974 B2 JPS6115974 B2 JP S6115974B2
- Authority
- JP
- Japan
- Prior art keywords
- temperature
- main body
- heat
- ferrite
- water
- 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
- 238000010438 heat treatment Methods 0.000 claims description 25
- 238000005192 partition Methods 0.000 claims description 6
- 230000005611 electricity Effects 0.000 claims 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 31
- 229910000859 α-Fe Inorganic materials 0.000 description 29
- 238000009835 boiling Methods 0.000 description 15
- 238000010304 firing Methods 0.000 description 3
- 230000003111 delayed effect Effects 0.000 description 2
- 238000005187 foaming Methods 0.000 description 2
- 239000012212 insulator Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000013459 approach Methods 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 238000010411 cooking Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 230000020169 heat generation Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
- A47J27/00—Cooking-vessels
- A47J27/56—Preventing boiling over, e.g. of milk
- A47J27/62—Preventing boiling over, e.g. of milk by devices for automatically controlling the heat supply by switching off heaters or for automatically lifting the cooking-vessels
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
- A47J27/00—Cooking-vessels
- A47J27/21—Water-boiling vessels, e.g. kettles
- A47J27/21008—Water-boiling vessels, e.g. kettles electrically heated
Landscapes
- Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- Instantaneous Water Boilers, Portable Hot-Water Supply Apparatuses, And Control Of Portable Hot-Water Supply Apparatuses (AREA)
Description
本発明は家庭用の電気やかん等の制御装置に関
し、沸騰状態を確実に検知して電源を遮断するこ
とはもちろん、目的に合つた湯温でも電源を自動
的に遮断する電気やかん等の制御装置を提供しよ
うとするものである。
一般に、電気やかん等の湯沸し器具は、使用目
的により、任意の温度で温める場合、一度沸騰さ
せ使用する場合、連続沸騰させて使用する場合等
があるが、１台で３役を有する機能を持つことは
非常に機構が複雑となりコストアツプを招き実用
化がおくれていた。中には温度可変型サーモスタ
ツトを使用して温度を制御する方式のものもあつ
たが、この方式では、発熱体の温度または湯温を
感知して制御する方式のため、世界の高原地域で
は気圧が低いため沸点温度が低くなり、一般地域
とは温度の調節点が異なり、同一仕様の製品を全
世界で使用することができなかつた。また発熱体
の温度に湯温が影響されるため、電圧変動や室温
の変化の影響を大きく受け、性能的に満足できる
ものではなかつた。
本発明は沸騰時の気泡を利用し、気泡の排出口
を制御することにより、目的の湯温が得られ、空
焼時には感熱部材への発熱体の伝導熱を利用し、
一定温度でキユリー点を有する感熱部材により電
源を遮断し、発熱体の保護及び火災等の危険をも
防止することができ、同一の製品で全世界で使用
できることを可能にしたものである。
以下、本発明の一実施例を添付図面を参照して
説明する。
第１図において１はやかんの本体、２は蓋、３
は熱伝導性の良好な金属材料よりなる感熱カバー
で、本体１よりなる容器の底部中央の開口を下方
に突出した状態で熔着し区画室を形成している。
４は本体１側と感熱カバー３側の区画室とを分離
し部分的な沸騰により電源を制御する仕切り部材
で、本体１側と感熱カバー３側の区画室をつなぐ
筒状垂下部を備えた通路を有し、区画室底部に一
定間隙を介し近接して開口しており、本体１に差
し込み回転させることにより本体１に着脱自在な
構成となつている。また本体内部と区画室をつな
ぐ通路は調節弁４′により気泡の排出口を調節で
きるようになつており、この調節弁４′により気
泡の排出口を制御して電源を遮断できるようにな
つている。。本実施例では第３図イ，ロ，ハに示
す位置に調節弁４′を調節することにより３通り
の沸騰状態が得られる。
５はパツキングで沸騰時に区画室内に生じる気
泡の漏れを防止している。６は一定温度でキユリ
ー点を有する感熱部材であるところの温度制御用
のフエライトで、感熱カバー３に固定している。
７は本体１の底部に装備したシーズヒータ等の
発熱体で、適当な発熱表面を得るためらせん状又
は曲折状に成形されており、本実施例では感熱カ
バー３と一緒に本体１底部にろう付けされてい
る。また、発熱体７はその先端の端子部に固定接
点８を固着している。
９は上記フエライト６と対向するようにマグネ
ツトホルダー１０にて保持したマグネツトであ
る。前記マグネツトホルダー１０と感熱カバー３
の間にはマグネツト９とフエライト６との吸着を
離す方向に付勢するコイルスプリング１１を介在
させている。
１２は本体１に装備したスイツチ部分の各機構
を覆うように設けた覆い部材、１３は一端側を軸
１４に軸支したレバーで、他端側にはマグネツト
ホルダー１０を取付け、前記一端側端部には操作
ボタン１５を固着している。一方、角１６、絶縁
陶器１７からなる電源コンセントの裏面には、端
部に前述の固定接点８と対応する接点１８ａを固
着した弾性を有するプレード１８を取付け、か
つ、前記レバー１３の中央部分に固着した絶縁子
１９により、マグネツト９がフエライト６に吸着
されていない時は、接点１８ａを固着したブレー
ド１８を押下げ、接点８，１８ａ間を開路する様
構成している。ここで、上記区画室を構成する感
熱カバー３の一部には、発熱体７の少なくとも一
部が接触している。
上記構成において、次に動作を説明すると、沸
騰させるべき水を本体１内に入れ、上記電源コン
セントに器具用プラグを接続し、操作ボタン１５
の上部を矢印ａの方向に押すと、マグネツト９は
フエライト６に向つて移動し、このマグネツト９
とフエライト６は、コイルスプリング１１の付勢
力に抗して吸着し、第１図の様に接点８，１８ａ
間が閉じ、発熱体７による加熱が始まる。
加熱が始まると、発熱体７に当接した感熱カバ
ー３を介しフエライト６の温度が上昇するが、こ
の時、感熱カバー３内の水Ａにより、フエライト
６の温度上昇は緩和される。通電後しばらくする
と、感熱カバー３内の水Ａは、本体１内の水Ｂよ
り量が少ないため、本体１内の水Ｂより早く水温
が上昇する。そして感熱カバー３内の温たまつた
水Ａは、対流作用により本体１内の水Ｂと入れか
わり、感熱カバー３を介しフエライト６は冷却さ
れ、フエライト６は冷却と加熱をくり返す。ここ
までの温度上昇カーブは調節弁４′を第３図イ，
ロ，ハのどの位置にしても同じであり、次に調節
弁４′の各位置においての動作を説明する。調節
弁４′を第３図イに示すように気泡の排出口を小
さくする位置に調節した場合、本体１内の水温が
約70℃位になると小さな気泡が発生しはじめ、発
熱体７に当接した感熱カバー３内でも同じように
気泡が発生する。そしてこの気泡により感熱カバ
ー３内の水Ａは、調節弁４′からの気泡の排出口
が小さいため、わずかな泡立ちで本体１側へ押し
出され、今まで発熱体７から熱を受けていた感熱
カバー３は、沸騰前ではあるが急激に温度上昇
し、感熱カバー３に固着したフエライト６に伝熱
されてフエライト６はキユーー点に達する。この
時点でコイルスプリング１１の付勢力により、マ
グネツト９はフエライト６から自動的に外れ、レ
バー１３に設けた絶縁子１９がブレード１８を押
し下げて固定接点８と接点１８ａとを接触を断
ち、発熱体７の発熱が停止し湯沸しは終了する。
次に調節弁が第３図ロに示す位置の調節された
時では、気泡の排出口を大きくしたため70℃位で
の気泡の発生では感熱カバー３内の水Ａは空炊き
に近いほど押し出されず、本体１内の水温が97℃
〜98℃位になり、はげしく気泡が発生しはじめた
時はじめて感熱カバー３内の水Ａが押し出され、
フエライト６は急激に温度上昇し、上記と同りよ
うに発熱体７の発熱を停止し湯沸しは終了する。
次に調節弁４′を第３図ハに示すように気泡の
排出口をかなり大きくした場合でははげしい沸湯
が生じて気泡が多量に発生しても気泡の排出口が
非常に大きいため次々に気泡が出てしまい、感熱
カバー３内の水Ａは十分に押し出されずフエライ
ト６は温度上昇せずに安定してしまい水が無くな
るまで通電が続き、水が無くなり空焼になつては
じめて、発熱体７からの伝熱によりフエライト６
はキユリー点に達し発熱体７の発熱を停止する。
実験によれば、第２図において“排出口面積
ｄ”“Ｈ”“ｌ”の各寸法は、発熱体７のワツト数
および目的の湯温により決定され、“排出口面積
ｄ”が小さい程、“Ｈ”が長い程、また“ｌ’の
小さい程、わずかな泡立ちでフエライト６の温度
は急激に立上がる関係にあり、逆に大きくなると
フエライト６の立上がりがおくれ、大きくなりす
ぎるとフエライト６は立上がらなくなるなり、こ
の“排出口面積ｄ”“Ｈ”“ｌ”の各寸法により電
源を遮断するポイント（時間）を選定できる。
本実施例では“排出口面積ｄ”を変化させ動作
ポイントを変化させているが第４図の実施例のよ
うに仕切り部材の一部分４″を着脱自在にして、
この部品４″の“排出口面積ｄ”“ｈ”の寸法を変
えた部品に付けかえることにより自由に電流を遮
断するポイントを選定することも可能である。
第５図は本実施例における各部の温度上昇曲線
を示しており、イは発熱体７の温度でロａは第３
図イの状態におけるフエライトの温度、ロｂは第
３図ロの状態におけるフエライトの温度、ロｃは
第３図ハの状態におけるフエライトの温度、ハは
本体１内の各温度上昇曲線である。曲線ロａ，ロ
ｂ，ロｃは通電後、のこぎり歯の様な温度上昇カ
ーブをえがき、この温度上昇カーブの
The present invention relates to a control device for household electric kettles, etc., which not only reliably detects the boiling state and shuts off the power supply, but also automatically shuts off the power supply even when the water temperature is suitable for the purpose. This is what we are trying to provide. In general, electric kettles and other water boilers can be used to heat water at a desired temperature, to boil once, or to boil continuously, depending on the purpose of use; one unit has three functions. This resulted in an extremely complex mechanism, which led to increased costs and delayed practical application. Some methods used variable temperature thermostats to control the temperature, but this method detects and controls the temperature of the heating element or water temperature, so it is not popular in highland regions of the world. Because the atmospheric pressure is low, the boiling point temperature is low, and the temperature control point is different from that in general regions, making it impossible to use products with the same specifications all over the world. Furthermore, since the water temperature is affected by the temperature of the heating element, it is greatly affected by voltage fluctuations and changes in room temperature, resulting in unsatisfactory performance. The present invention uses air bubbles during boiling, and by controlling the air bubble outlet, the desired water temperature can be obtained, and during dry firing, the conduction heat of the heating element to the heat-sensitive member is used,
The heat-sensitive material, which has a Curie point at a constant temperature, cuts off the power supply, protects the heating element, and prevents dangers such as fire, making it possible for the same product to be used all over the world. Hereinafter, one embodiment of the present invention will be described with reference to the accompanying drawings. In Figure 1, 1 is the main body of the kettle, 2 is the lid, and 3
1 is a heat-sensitive cover made of a metal material with good thermal conductivity, and is welded to the bottom center opening of a container consisting of a main body 1 in a downwardly protruding state to form a compartment.
4 is a partition member that separates the compartments on the main body 1 side and the heat-sensitive cover 3 side and controls the power supply by partial boiling, and is provided with a cylindrical hanging part that connects the compartments on the main body 1 side and the heat-sensitive cover 3 side. It has a passage and opens close to the bottom of the compartment with a certain gap therebetween, and is configured to be detachable from the main body 1 by inserting it into the main body 1 and rotating it. In addition, the passage connecting the inside of the main body and the compartment chamber is designed so that the air bubble outlet can be adjusted by a control valve 4', and this control valve 4' can be used to control the air bubble outlet and cut off the power supply. There is. . In this embodiment, three boiling states can be obtained by adjusting the control valve 4' to the positions shown in FIG. 3A, B, and C. 5 is packed to prevent air bubbles generated in the compartment during boiling from leaking. Reference numeral 6 denotes a ferrite for temperature control, which is a heat-sensitive member having a Curie point at a constant temperature, and is fixed to the heat-sensitive cover 3. Reference numeral 7 denotes a heating element such as a sheathed heater installed at the bottom of the main body 1, which is formed into a spiral or curved shape to obtain an appropriate heating surface. It is attached. Further, the heating element 7 has a fixed contact 8 fixed to a terminal portion at its tip. A magnet 9 is held by a magnet holder 10 so as to face the ferrite 6. The magnetic holder 10 and the thermal cover 3
A coil spring 11 is interposed between them to bias the magnet 9 and the ferrite 6 in a direction that separates them from each other. 12 is a cover member provided to cover each mechanism of the switch part equipped on the main body 1; 13 is a lever whose one end is supported on a shaft 14; the other end is equipped with a magnetic holder 10; An operation button 15 is fixed to the end. On the other hand, on the back side of the power outlet made of a corner 16 and an insulating ceramic 17, an elastic plate 18 having a contact 18a corresponding to the above-mentioned fixed contact 8 fixed at the end is attached. When the magnet 9 is not attracted to the ferrite 6 by the fixed insulator 19, the blade 18 fixed to the contact 18a is pushed down to open the circuit between the contacts 8 and 18a. Here, at least a portion of the heating element 7 is in contact with a portion of the heat-sensitive cover 3 constituting the compartment. In the above configuration, the operation will be explained below. Water to be boiled is poured into the main body 1, the appliance plug is connected to the power outlet, and the operation button 15 is pressed.
When the upper part of the magnet 9 is pushed in the direction of arrow a, the magnet 9 moves toward the ferrite 6, and this magnet 9
and ferrite 6 are attracted against the biasing force of the coil spring 11, and the contacts 8, 18a are closed as shown in FIG.
The time period closes, and heating by the heating element 7 begins. When heating starts, the temperature of the ferrite 6 rises through the heat-sensitive cover 3 that is in contact with the heating element 7, but at this time, the temperature rise of the ferrite 6 is moderated by the water A inside the heat-sensitive cover 3. After a while after energization, the water temperature of the water A in the heat-sensitive cover 3 rises faster than that of the water B in the main body 1 because the amount of water A in the heat-sensitive cover 3 is smaller than the water B in the main body 1. Then, the warm water A in the heat-sensitive cover 3 replaces the water B in the main body 1 by convection, and the ferrite 6 is cooled through the heat-sensitive cover 3, and the ferrite 6 is repeatedly cooled and heated. The temperature rise curve up to this point shows the control valve 4' as shown in Figure 3A.
The operation is the same regardless of the position (b) or (c), and the operation of the control valve 4' in each position will be explained next. When the control valve 4' is adjusted to a position that makes the air bubble outlet smaller as shown in Fig. 3A, small air bubbles will begin to form when the water temperature inside the main body 1 reaches approximately 70°C and will hit the heating element 7. Bubbles are generated in the same way in the heat-sensitive cover 3 that is in contact with the heat-sensitive cover 3. Due to these air bubbles, the water A inside the heat-sensitive cover 3 is pushed out toward the main body 1 side with slight foaming because the air bubble outlet from the control valve 4' is small. The temperature of the cover 3 rises rapidly although it is not yet boiling, and the heat is transferred to the ferrite 6 fixed to the heat-sensitive cover 3, so that the ferrite 6 reaches the cue point. At this point, the magnet 9 is automatically removed from the ferrite 6 due to the biasing force of the coil spring 11, and the insulator 19 provided on the lever 13 pushes down the blade 18 to break contact between the fixed contact 8 and the contact 18a, and the heating element 7, the heat generation stops and the water boiling ends. Next, when the control valve is adjusted to the position shown in Figure 3 B, the air bubble outlet is enlarged, so when air bubbles are generated at around 70°C, the water A in the heat-sensitive cover 3 is not pushed out to the extent that it is close to dry cooking. , the water temperature inside main body 1 is 97℃
It is only when the temperature reaches ~98°C and bubbles begin to form rapidly that the water A inside the heat-sensitive cover 3 is forced out.
The temperature of the ferrite 6 rises rapidly, and the heating element 7 stops generating heat in the same manner as described above, and the water boiling ends. Next, if the bubble outlet of the control valve 4' is made quite large as shown in Fig. 3C, violent boiling water will occur and even if a large amount of bubbles are generated, the bubble outlet is very large and the bubbles will be released one after another. Bubbles appear, and the water A inside the heat-sensitive cover 3 is not pushed out sufficiently, and the temperature of the ferrite 6 does not rise and becomes stable. The current continues until the water runs out, and only when the water runs out and dry firing occurs, the heating element Ferrite 6 due to heat transfer from 7
reaches the Kyrie point and the heating element 7 stops generating heat. According to experiments, the dimensions of "discharge port area d", "H" and "l" in FIG. , the longer "H" and the smaller "l', the more rapidly the temperature of ferrite 6 rises with the slightest amount of foaming; conversely, if it becomes too large, the rise of ferrite 6 will be delayed, and if it becomes too large, the temperature of ferrite 6 will rise rapidly. stops rising, and the point (time) at which the power is cut off can be selected based on the dimensions of the "discharge port area d", "H", and "l". In this example, the "discharge port area d" is changed to determine the operating point. However, as in the embodiment shown in Fig. 4, part 4'' of the partition member is made detachable,
It is also possible to freely select the point at which the current is interrupted by replacing the part 4'' with a part whose dimensions of the discharge port area d and h are changed. Figure 5 shows each part in this embodiment. , where A is the temperature of the heating element 7 and B is the temperature of the third heating element.
B is the temperature of the ferrite in the state shown in FIG. 3B, B is the temperature of the ferrite in the state shown in FIG. For curves Loa, Lob, and Loc, after energizing, draw a sawtooth-like temperature rise curve and compare the temperature rise curves.
【式】部分の振幅は、沸騰に近ず
くにつれて小さくなり、沸騰直前ではほぼ一定と
なるが、これは沸騰に近ずくにつれ感熱カバー３
内の水温と本体１内の水温との差が少なくなるた
めである。また曲線ロａ，ロｂにおいて目的の気
泡が発生した時点で、フエライト６は急上昇をす
るためＰからＱの間で、フエライト６の温度設定
をすればよく、製造時におけるフエライトの動作
温度のバラツキを大きくすることが可能である。
また、曲線ロａ，ロｂにおいて、沸騰直前のフエ
ライト６の温度点“Ｐ”は、発熱体７のワツト
数、即ち、発熱体７に加わる電圧に比例して上昇
するが、同時に安定温度点“Ｑ”も比例して上昇
し、フエライト６の急激な温度上昇曲線は電圧変
動が生じても変らず、電圧の変動を吸収できる。
また、従来の熱感知構造では、沸騰後のフエラ
イトの温度上昇巾は5deg〜15deg程度のものが最
高であつたが、本実施例においては目的の気泡発
生直後に100deg以上の温度上昇巾を得ることが
でき、フエライト等の熱感知片のバラツキを吸収
でき温度可変型の電気やかんの実用化が可能であ
る。
以上の説明で明らかなように、本発明によれば
気泡の排出口を可変にすることにより、目的の気
泡が発生した時点及び水が無くなつた時点等任意
に電源を遮断することができ、気圧の差、水温、
水量、室温および電圧等の影響を非常に受けにく
いため同一仕様で世界各国で使用可能であり、ま
た特別な空焼防止装置も必要とせず非常に簡単な
構成により、安価で高性能の温度可変型の電気や
かんが提供できる。[Formula] The amplitude of the part becomes smaller as it approaches boiling, and becomes almost constant just before boiling.
This is because the difference between the water temperature inside the main body 1 and the water temperature inside the main body 1 becomes smaller. Furthermore, when the desired bubbles are generated at curves Loa and Lob, the temperature of ferrite 6 rises rapidly, so the temperature of ferrite 6 can be set between P and Q. It is possible to increase the
In addition, in curves Loa and Lob, the temperature point "P" of the ferrite 6 immediately before boiling increases in proportion to the wattage of the heating element 7, that is, the voltage applied to the heating element 7, but at the same time, the temperature point "P" of the ferrite 6 immediately before boiling rises in proportion to the voltage applied to the heating element 7. "Q" also increases proportionally, and the rapid temperature rise curve of the ferrite 6 does not change even when voltage fluctuations occur, so that voltage fluctuations can be absorbed. In addition, in the conventional heat sensing structure, the maximum temperature rise range of ferrite after boiling was about 5 degrees to 15 degrees, but in this example, the temperature rise range of 100 degrees or more was obtained immediately after the desired bubbles were generated. This makes it possible to absorb variations in heat-sensing pieces such as ferrite, making it possible to put a variable-temperature electric kettle into practical use. As is clear from the above description, according to the present invention, by making the bubble outlet variable, the power can be cut off at any time, such as when the desired bubbles are generated or when the water runs out. difference in atmospheric pressure, water temperature,
Because it is extremely unaffected by water volume, room temperature, voltage, etc., it can be used in countries all over the world with the same specifications.It also does not require any special dry firing prevention equipment and has a very simple configuration, making it possible to adjust the temperature at low cost and with high performance. We can provide a type of electric kettle.
第１図は本発明の一実施例における電気やかん
の断面図、第２図は同要部の断面図、第３図イ，
ロ，ハは同要部の平面図、第４図は本発明の他の
実施例における要部分解斜視図、第５図は要部の
温度上昇曲線図である。
１……やかん本体、３……感熱カバー、４……
仕切り部材、４……調説弁、６……フエライト、
７……発熱体。
Fig. 1 is a cross-sectional view of an electric kettle according to an embodiment of the present invention, Fig. 2 is a cross-sectional view of the same essential parts, Fig. 3 A,
B and C are plan views of the same essential parts, FIG. 4 is an exploded perspective view of the essential parts in another embodiment of the present invention, and FIG. 5 is a temperature rise curve diagram of the essential parts. 1... Kettle body, 3... Thermal cover, 4...
Partition member, 4... control valve, 6... ferrite,
7... Heating element.
Claims (1)
本体内部とは別に仕切り部材による区画室を設
け、本体内部と区画室を分離する仕切り部材は区
画室とやかん本体内部とを連通する連通孔を有
し、前記区画室の底部には発熱体への通電制御を
行なう感熱部材を設け、上記仕切り部材は、本体
内部より着脱自在で、かつ本体内部と区画室とを
連通する連通孔を可変にして、制御温度を自在に
変化させる構成とした電気やかん等の制御装置。1 A heating element is disposed at the bottom of the main body, a compartment is provided at the bottom of the main body by a partition member separate from the inside of the main body, and the partition member that separates the inside of the main body and the compartment is a communication device that connects the compartment and the inside of the kettle main body. A heat-sensitive member is provided at the bottom of the compartment to control electricity supply to the heating element, and the partition member is removable from the inside of the main body and has a communication hole that communicates the inside of the main body and the compartment. A control device for electric kettles, etc. that is configured to be variable and to freely change the controlled temperature.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12993081A JPS5831247A (en) | 1981-08-19 | 1981-08-19 | Controller for electric kettle, and the like |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12993081A JPS5831247A (en) | 1981-08-19 | 1981-08-19 | Controller for electric kettle, and the like |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5831247A JPS5831247A (en) | 1983-02-23 |
| JPS6115974B2 true JPS6115974B2 (en) | 1986-04-26 |
Family
ID=15021931
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12993081A Granted JPS5831247A (en) | 1981-08-19 | 1981-08-19 | Controller for electric kettle, and the like |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5831247A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62153868U (en) * | 1986-03-20 | 1987-09-30 |
-
1981
- 1981-08-19 JP JP12993081A patent/JPS5831247A/en active Granted
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62153868U (en) * | 1986-03-20 | 1987-09-30 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5831247A (en) | 1983-02-23 |
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