WO2019031213A1 - Pan detection switch - Google Patents

Pan detection switch Download PDF

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Publication number
WO2019031213A1
WO2019031213A1 PCT/JP2018/027493 JP2018027493W WO2019031213A1 WO 2019031213 A1 WO2019031213 A1 WO 2019031213A1 JP 2018027493 W JP2018027493 W JP 2018027493W WO 2019031213 A1 WO2019031213 A1 WO 2019031213A1
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magnet
reed switch
magnetic field
magnetic
contact
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PCT/JP2018/027493
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French (fr)
Japanese (ja)
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裕輔 久々江
誠 鶴山
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株式会社立山科学センサーテクノロジー
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Publication of WO2019031213A1 publication Critical patent/WO2019031213A1/en

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    • AHUMAN NECESSITIES
    • A47FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47JKITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
    • A47J27/00Cooking-vessels
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24CDOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
    • F24C3/00Stoves or ranges for gaseous fuels
    • F24C3/12Arrangement or mounting of control or safety devices
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01HELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H13/00Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01HELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H13/00Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch
    • H01H13/02Details
    • H01H13/12Movable parts; Contacts mounted thereon
    • H01H13/14Operating parts, e.g. push-button
    • H01H13/18Operating parts, e.g. push-button adapted for actuation at a limit or other predetermined position in the path of a body, the relative movement of switch and body being primarily for a purpose other than the actuation of the switch, e.g. door switch, limit switch, floor-levelling switch of a lift
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01HELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H36/00Switches actuated by change of magnetic field or of electric field, e.g. by change of relative position of magnet and switch, by shielding

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  • Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Cookers (AREA)
  • Push-Button Switches (AREA)
  • Switches That Are Operated By Magnetic Or Electric Fields (AREA)

Abstract

Provided is a pan detection switch having a structure with which the influence of disturbance, such as heat, can be suppressed, and which can be implemented at low cost and in small size. The pan detection switch comprises a configuration in which a reed switch (1) advances into or retreats out of a magnetic case (2) due to application of a pressure to a pressure receiving portion (3). The pan detection switch is characterized in that: the reed switch (1) is provided with, at fixed positions, a magnet (9) for forming a magnetic field and a contact (10) that closes in an effective magnetic field of the magnet (9); and that the magnetic case (2) replaces the contact (10) into and out of the effective magnetic field of the magnet as the reed switch (1) advances or retreats.

Description

鍋検知スイッチHot pot detection switch
 この発明は、コンロなどの加熱調理機器上に調理鍋が存在するか否かを検出する鍋検知スイッチに関するものである。 The present invention relates to a pan detection switch for detecting whether a cooking pan is present on a cooking device such as a stove.
 従来のコンロでは、五徳上に調理鍋が検出されない場合にバーナの点火を禁止し、五徳上に調理鍋を検出した場合に調理時における安全機能を有効にする制限を行うシステムが採用されている(例えば下記特許文献4参照)。
 近年では、更に、調理鍋の鍋底に当接する受熱部を備え、当該受熱部で検出された温度が所定温度以上か否かを監視すると共に、鍋底温度を所定温度以上と判定した場合に、過熱防止制御を行うシステムも採用されている(例えば下記特許文献1参照)。
In the conventional stove, a system is adopted that prohibits the ignition of the burner when the cooking pot is not detected in Gotoku, and performs a restriction that enables the safety function at the time of cooking when the cooking pot is detected in Gotoku (For example, refer to the following patent document 4).
In recent years, a heat receiving unit is further provided which abuts the bottom of the cooking pot, monitors whether the temperature detected by the heat receiving unit is equal to or higher than a predetermined temperature, and overheats when it is determined that the temperature of the pot bottom is equal to or higher than the predetermined temperature. A system that performs prevention control is also adopted (see, for example, Patent Document 1 below).
 五徳上の調理鍋を検出するスイッチは、五徳上に載せられた調理鍋の荷重を受ける直線的可動操作部品をもつスイッチであって、その内部に下記特許文献を例とする種々の接点が構成されている(例えば下記特許文献2乃至4参照)。
 なかには、磁界を発生する磁石と、磁界の作用で開閉するリードスイッチと、前記磁界を遮断する磁性体で構成され、例えば、上記の如く、感熱ヘッドが調理器具の荷重によって上下摺動する作用を利用してリード端子の接点を連動させるなどにより、当該接点に対する磁界の作用を変化させるものも存在する(例えば下記特許文献5参照)。
The switch for detecting the cooking pot on Gotoku is a switch having a linearly movable operation component which receives the load of the cooking pot placed on Gotoku, and various contacts, such as the following patent documents, are formed therein. (See, for example, Patent Documents 2 to 4 below).
Among them, it is composed of a magnet that generates a magnetic field, a reed switch that opens and closes by the action of the magnetic field, and a magnetic body that shuts off the magnetic field. There are also devices that change the action of the magnetic field on the contact points by interlocking the contact points of the lead terminals to be used (see, for example, Patent Document 5 below).
特開2000-179859号公報Japanese Patent Application Laid-Open No. 2000-179859 特開2006-34783号公報Unexamined-Japanese-Patent No. 2006-34783 特開平8-86445号公報JP-A-8-86445 特開2013-160457号公報JP, 2013-160457, A 特開2010-25420号公報JP, 2010-25420, A
 スイッチの精度は、磁石の磁力や、リードスイッチの感度や、高熱などの外乱要因の有無などで決まるが、上記構成のもとでは、スイッチの精度の個体差を抑制するための配置的又は能力的な措置が採りがたい情況にある。 The accuracy of the switch is determined by the magnetic force of the magnet, the sensitivity of the reed switch, the presence or absence of disturbance factors such as high heat, etc. Under the above configuration, the positional or ability to suppress individual differences in switch accuracy Situation is difficult to take.
 例えば、上記磁界を利用した従来の鍋検知スイッチに用いられる磁石は、熱の影響を受けて減磁するため、リードスイッチが検知可能な磁力を十分に確保できる磁石が必要となる。
 そのような磁石の採用は、耐熱仕様の永久磁石を採用するという選択肢があるものの、殊に、小型化が要請される現状においては磁石が高額となり、鍋検知スイッチの高騰を招来する。
For example, a magnet used in a conventional pan detection switch using the above magnetic field demagnetizes under the influence of heat, so a magnet capable of sufficiently securing a magnetic force detectable by the reed switch is required.
Although the adoption of such a magnet has an option of employing a heat-resistant permanent magnet, the magnet becomes expensive particularly under the present circumstances where miniaturization is required, and the pan detection switch is soaring.
 本発明は、上記実情に鑑みてなされたものであって、熱等の外乱の影響が抑制でき、且つ低コストで小型に実現できる構造を持った鍋検知スイッチの提供を目的とする。 This invention is made in view of the said situation, Comprising: It aims at provision of the pan detection switch with the structure which can suppress the influence of disturbances, such as a heat | fever, and can be realized small at low cost.
 上記課題を解決するためになされた本発明による鍋検知スイッチは、受圧部への加圧によって進退自在となるように支持されたリードスイッチと、前記リードスイッチの進退に伴って当該リードスイッチが出没する磁性体ケースを備え、前記リードスイッチは、磁界を形成する磁石と当該磁石の有効磁界内で閉じる接点を定位置に備え、前記磁性体ケースは、前記リードスイッチの出没により前記接点を前記磁石の有効磁界の内外に置き換えることを特徴とする。 The pan detection switch according to the present invention, which has been made to solve the above problems, includes a reed switch supported so as to be able to move back and forth by applying pressure to the pressure receiving portion, and the reed switch appears and retracts as the reed switch moves back and forth. The reed switch includes at a fixed position a magnet for forming a magnetic field and a contact that is closed within the effective magnetic field of the magnet, and the magnetic case is configured such that the contact is closed by the protrusion of the reed switch. It is characterized by being replaced inside and outside the effective magnetic field of
 受圧部への加圧によって進退自在となるように支持された磁性体ケースと、前記磁性体ケースの進退に伴って当該磁性体ケースを出没するリードスイッチを備え、前記リードスイッチは、磁界を形成する磁石と当該磁石の有効磁界内で閉じる接点を定位置に備え、前記磁性体ケースは、前記リードスイッチの出没により前記接点を前記磁界の有効磁界の内外に置き換える構成を採ることもできる。 A magnetic body case supported so as to be able to move forward and backward by pressure applied to the pressure receiving portion, and a reed switch for retracting the magnetic body case as the magnetic body case advances and retracts, the reed switch forms a magnetic field The magnet may be provided at a fixed position with a contact that closes within the effective magnetic field of the magnet, and the magnetic body case may adopt a configuration in which the contact is replaced between the inside and the outside of the effective magnetic field of the magnetic field by projecting and retracting the reed switch.
 前記リードスイッチは、前記磁石及び前記接点が前記リードスイッチの進退方向に沿って配置されると共に、当該磁石は、前記磁性体ケース側に配置され、前記磁性体ケースは、前記磁石の進入により前記接点を有効磁界外とする構成を具備する鍋検知スイッチとすることができる。
 前記磁石は、その磁極が前記リードスイッチの進退方向に沿って配置し、一方の磁極を前記接点にできるだけ接近させることが望ましい。
In the reed switch, the magnet and the contact point are disposed along the advancing and retracting direction of the reed switch, the magnet is disposed on the magnetic body case side, and the magnetic body case is moved by the penetration of the magnet. A pan detection switch can be provided which has a configuration in which the contact point is out of the effective magnetic field.
It is desirable that the magnet be disposed with its magnetic pole in the advancing and retracting direction of the reed switch, and one of the magnetic poles be as close as possible to the contact point.
 本発明による鍋検知スイッチによれば、受圧部への加圧によってリードスイッチが磁性体ケースを出没する構成を採り、且つ前記リードスイッチとして、磁界を形成する磁石と当該磁石の有効磁界内で閉じる接点を定位置に固定する構成を採ることによって、前記リードスイッチの出没により前記接点を有効磁界の内外に置き換えて接点の開閉を行い、鍋検知スイッチの機能を確実に果たすことができる。 According to the pan detection switch according to the present invention, the reed switch has a configuration in which the reed switch projects and retracts the magnetic material case by pressurization to the pressure receiving portion, and the reed switch is closed within the effective magnetic field of the magnet forming the magnetic field and the magnet. By adopting a configuration in which the contact is fixed at a fixed position, the contact can be switched by switching the contact between the inside and the outside of the effective magnetic field due to the appearance of the reed switch, and the function of the pan detection switch can be surely performed.
 しかも、前記リードスイッチは、前記磁石及び前記接点が前記リードスイッチの進退方向に沿って相互間の距離を一定に保って配置されているため、従来の手法に比して用いる磁石の磁力は小さくて済み、両者の距離を近接させることで小型のリードスイッチを構成することができる。
 この効果は、前記磁石の磁極が前記リードスイッチの進退方向に沿って配置されることによって、リード端子近傍の磁束密度が高まり、より顕著になる。
Moreover, since the reed switch is disposed with the distance between the magnet and the contact point kept constant along the advancing and retracting direction of the reed switch, the magnetic force of the magnet used is small compared to the conventional method. A small reed switch can be configured by bringing the two into close proximity.
This effect is more pronounced as the magnetic poles of the magnet are arranged along the advancing and retracting direction of the reed switch, thereby increasing the magnetic flux density in the vicinity of the reed terminal.
 また、前記磁性体ケースは、前記磁石の進入により前記接点を有効磁界外とする構成を採ることによって、従来のスイッチ構成に比して周囲の磁界の影響が軽減され、動作精度を高めることができる。
 以上の構成及び作用効果により、磁石とリード端子との間に他の部品が介在させる必要がなくなるため、関連部品の個体差で生じる性能のバラツキを回避することができる他、磁石が外乱等の影響を受け易い配置の回避が容易となり、鍋検知スイッチの精度及び耐熱性が高まることとなる。
In addition, the magnetic material case is configured to make the contact point outside the effective magnetic field by the entry of the magnet, thereby reducing the influence of the surrounding magnetic field compared to the conventional switch configuration and enhancing the operation accuracy. it can.
With the above configuration and operation and effect, it is not necessary to interpose another component between the magnet and the lead terminal, so that it is possible to avoid variations in performance caused by individual differences of related components, and the magnet This makes it easy to avoid the arrangement that is susceptible to influence, and the accuracy and heat resistance of the pan detection switch are enhanced.
(A)及び(B)は、本発明による鍋検知スイッチの作用の一例を示す概略図である。(A) and (B) are schematic which shows an example of an effect | action of the pan detection switch by this invention. (A)、(B)及び(C)は、本発明による鍋検知スイッチの実施態様例を示す平面図、側面図及び鍋検知スイッチの要部断面図である。(A), (B) and (C) are the top view which shows the embodiment example of the pan detection switch by this invention, a side view, and principal part sectional drawing of a pan detection switch. (A)、(B)及び(C)は、本発明による鍋検知スイッチの実施態様例を示す平面図、側面図及び鍋検知スイッチの要部断面図である。(A), (B) and (C) are the top view which shows the embodiment example of the pan detection switch by this invention, a side view, and principal part sectional drawing of a pan detection switch. 本発明による鍋検知スイッチの実施に用いられる受圧部の一例を示す縦断面図である。It is a longitudinal cross-sectional view which shows an example of the pressure receiving part used for implementation of the pan detection switch by this invention. (A)及び(B)は、従来の鍋検知スイッチの作用の一例を示す概略図である。(A) And (B) is schematic which shows an example of an effect | action of the conventional pan detection switch.
 以下、本発明による鍋検知スイッチの実施の形態を、図面に基づき詳細に説明する。
 本発明による鍋検知スイッチは、受圧部3への加圧によって進退自在となるように支持されたリードスイッチ1と、前記リードスイッチ1の進退に伴って当該リードスイッチ1が出没する磁性体ケース2を備えたものである。
Hereinafter, an embodiment of a pan detection switch according to the present invention will be described in detail based on the drawings.
The pan detection switch according to the present invention comprises a reed switch 1 supported so as to be able to move forward and backward by applying pressure to the pressure receiving portion 3 and a magnetic body case 2 in which the reed switch 1 appears and retracts with the movement of the reed switch Is provided.
 図2及び図3に示す例は、ガスコンロなどの加熱調理機器の五徳部分などに配置され、加熱調理機器に置かれた調理鍋の鍋底に当接し、その荷重を受けて後退し、調理鍋の撤去により復帰する受圧部3を具備する可動部Aと、前記可動部Aの進退を直線的に規制するガイド部Bを備える。 The example shown in FIG. 2 and FIG. 3 is disposed in the Gotoku part of a heating and cooking apparatus such as a gas stove, and abuts on the pan bottom of the cooking pot placed on the heating and cooking apparatus and recedes under the load. It comprises a movable portion A having a pressure receiving portion 3 which is restored by removal, and a guide portion B which linearly regulates advancing and retracting of the movable portion A.
 この例において、前記可動部Aは、天板で上開口部を封じられた円筒状の前記受圧部3と、当該受圧部3の内空部の中央部に固定される温度センサーTと、当該受圧部3の内空部の周縁部に装填されるコイルバネSと、前記温度センサーTから引き出されたケーブルCを備える。 In this example, the movable portion A is the cylindrical pressure receiving portion 3 whose upper opening is sealed by a top plate, a temperature sensor T fixed to the central portion of the inner empty portion of the pressure receiving portion 3, and It includes a coil spring S loaded on the peripheral portion of the inner space portion of the pressure receiving portion 3 and a cable C drawn out from the temperature sensor T.
 前記受圧部3は、その内空部の底を仕切る底縁3aを備え、当該底縁3aは、その中央部に前記受圧部3の内空部に通じる引き出し孔3bを備えると共に、当該引き出し孔3bを取り囲む前記底縁3aの内縁に続いて下方へ延出する円筒状の摺動環3cを備える。
 前記ケーブルCは、前記底縁3aの引き出し孔3b及び前記摺動環3cの中空部を通して前記受圧部3の内空部から引き出される。
The pressure receiving portion 3 is provided with a bottom edge 3a that divides the bottom of the inner space, and the bottom edge 3a is provided with a lead-out hole 3b at its central portion leading to the inner space of the pressure receiving portion 3 A cylindrical sliding ring 3c extending downward following the inner edge of the bottom edge 3a surrounding the 3b is provided.
The cable C is drawn out from the inner space of the pressure receiving portion 3 through the extraction hole 3b of the bottom edge 3a and the hollow portion of the sliding ring 3c.
 この例において前記ガイド部Bは、前記受圧部3をその上端部に支持するガイド管4を備える。
 この例の前記ガイド管4は、その中空部に前記ケーブルCを通す中空金属管である。
 前記ガイド管4は、その上端部が前記受圧部3に進退自在に挿通されると共に、当該上端部の先端に離脱止めと前記コイルバネSの下端を支持する部位としての機能を兼ねた鍔部4aを備える。
In this example, the guide portion B includes a guide pipe 4 for supporting the pressure receiving portion 3 at its upper end.
The guide tube 4 in this example is a hollow metal tube in which the cable C is passed through its hollow portion.
An upper end portion of the guide tube 4 is inserted into the pressure receiving portion 3 so as to be able to move forward and backward, and a flange portion 4a serving as a portion for stopping the detachment at the tip of the upper end portion and supporting the lower end of the coil spring S Equipped with
 この例において前記鍋検知スイッチは、磁性体ケース2と、当該磁性体ケース2の内空部を出入りする円筒状のリードスイッチ1を備える。
 この例の前記リードスイッチ1は、非磁性体製の密封容器8の内空部に、磁界を形成する磁石9と当該磁石9の有効磁界(リード端子の接点10を閉じさせるに足る強度を持った磁界)内で閉じる接点10を定位置に封入して備える。
 前記リードスイッチ1は、前記磁石9及び前記接点10が、当該リードスイッチ1の進退方向に沿って配置されると共に、当該磁石9は、前記磁性体ケース2側に配置される。
In this example, the pan detection switch includes a magnetic body case 2 and a cylindrical reed switch 1 which moves in and out the inner space of the magnetic body case 2.
The reed switch 1 of this example has a magnet 9 for forming a magnetic field and an effective magnetic field of the magnet 9 (in a space sufficient to close the contact 10 of the lead terminal) in the inner space of the nonmagnetic sealed container 8. (A magnetic field) enclosed in a fixed position.
In the reed switch 1, the magnet 9 and the contact 10 are disposed along the advancing and retracting direction of the reed switch 1, and the magnet 9 is disposed on the magnetic material case 2 side.
 この例の前記磁石9は、前記密封容器8の先端部に固定され、その磁極が前記リードスイッチ1の進退方向に沿って配置される。
 この例の接点10は、磁気開閉作用を有するリード端子の一部であって、前記磁石9にその有効磁界に常時(前記磁性体ケース2の外へ離脱している時)含まれる程度に近接して設けられている。
 前記リード端子の基部は、前記密封容器8の基部に保持される。
The magnet 9 in this example is fixed to the tip of the sealed container 8, and its magnetic pole is disposed along the advancing and retracting direction of the reed switch 1.
The contact 10 in this example is a part of a lead terminal having a magnetic switching function, and is close enough to be included in the effective magnetic field of the magnet 9 at all times (when being separated out of the magnetic case 2). Provided.
The base of the lead terminal is held at the base of the sealed container 8.
 この様にリード端子及びその接点10を密封容器8に封入した構成を採ることによって、大量の油煙に曝される環境で用いられたとしても、それらの成分が当該リード端子やその接点10に付着することを防止し、当該接点10の良好な開閉機能を長期にわたって安定的に維持することができる。
 前記リード端子に繋がる加圧検出回路のケーブル(以下「接点ケーブル11」という)は、前記密封容器8の基部に保持されたリード端子の基部から引き出されている。
By adopting a configuration in which the lead terminal and the contact point 10 thereof are enclosed in the sealed container 8 in this manner, even if used in an environment exposed to a large amount of oil smoke, those components adhere to the lead terminal and the contact point 10 Can be prevented, and the good switching function of the contact 10 can be stably maintained over a long period of time.
The cable of the pressure detection circuit connected to the lead terminal (hereinafter referred to as "contact cable 11") is drawn out from the base of the lead terminal held by the base of the sealed container 8.
 一方、この例の前記磁性体ケース2は、非磁性体製の中空管(以下「鞘管5」という)と、当該鞘管5の先端部に装着される磁性体コア6とを備えて構成される。
 前記鞘管5は、前記リードスイッチ1が余裕をもって円滑に進退できる内空部を備え、当該内空部は、当該リードスイッチ1を構成する前記磁石9の略全体が進入できる長さを備える。
 前記磁性体コア6は、先端部が閉鎖された有底円筒状の中空管であって、鉄やフェライト(Ferrite)などの強磁性体を素材とし、前記鞘管5の先端部に装着される。
On the other hand, the magnetic body case 2 of this example includes a nonmagnetic hollow tube (hereinafter referred to as "sheath 5") and a magnetic body core 6 mounted on the tip of the sheath 5 Configured
The sheath tube 5 has an inner space where the reed switch 1 can move back and forth smoothly with a margin, and the inner space has a length to which substantially the entire magnet 9 constituting the reed switch 1 can enter.
The magnetic core 6 is a bottomed cylindrical hollow tube whose tip is closed and is made of a ferromagnetic material such as iron or ferrite, and is attached to the tip of the sheath 5 Ru.
 以上の如く構成された当該磁性体ケース2は、前記リードスイッチ1が進退する内空部を備え、且つ当該磁性体ケース2の一部又は全部が、その内空部に進入した前記磁石9の磁束を集める磁性体コア6となり、前記接点10に向う磁界を縮小する作用を奏することが要請される。
 その要請を満たした結果、この例では、当該リード端子に対する磁力(磁界)の影響が減少し、前記リード端子の接点10が前記磁石9の有効磁界から外れることにより、当該リード端子の接点10が開くこととなる。
The magnetic body case 2 configured as described above has an inner space where the reed switch 1 advances and retracts, and a part or all of the magnetic body case 2 enters the inner space. It is required to function as a magnetic core 6 for collecting magnetic flux and to reduce the magnetic field directed to the contact point 10.
As a result of satisfying the requirement, in this example, the influence of the magnetic force (magnetic field) on the lead terminal is reduced, and the contact 10 of the lead terminal deviates from the effective magnetic field of the magnet 9 to make the contact 10 of the lead terminal. It will open.
 前記磁性体ケース2は、前記作用を奏する限りにおいて、前記非磁性体製の鞘管5の先端部に棒状の磁性体や環状の磁性体を、前記磁性体コア6として固定する形態を採用することもできる。
 一方、前記リードスイッチ1の出入りの便宜や、磁束を多様な方向から通す観点に照らせば、本例の様な円筒状の磁性体コア6を採用することが有効である。
The magnetic body case 2 adopts a mode in which a rod-like magnetic body or a ring-like magnetic body is fixed as the magnetic body core 6 to the tip of the nonmagnetic sheath tube 5 as long as the magnetic body 2 exerts the function. It can also be done.
On the other hand, in view of the convenience of entering and exiting the reed switch 1 and the viewpoint of passing the magnetic flux from various directions, it is effective to adopt the cylindrical magnetic core 6 as in this example.
 前記磁性体ケース2は、前記ガイド管4にクリップ7等で固定され、当該鍋検知スイッチの前記リードスイッチ1は、その接点10に繋がる前記接点ケーブル11を介して前記ケーブルCに固着される。
 その結果、前記受圧部3の進退は、そのケーブルC及び前記接点ケーブル11を介して、前記磁性体ケース2に対し、前記リードスイッチ1の相対的な進退として伝えられる。
The magnetic body case 2 is fixed to the guide pipe 4 with a clip 7 or the like, and the reed switch 1 of the pan detection switch is fixed to the cable C via the contact cable 11 connected to the contact point 10 thereof.
As a result, movement of the pressure receiving portion 3 is transmitted as relative movement of the reed switch 1 to the magnetic material case 2 through the cable C and the contact cable 11.
 上記前記鍋検知スイッチは、以上のごとく構成され、前記リードスイッチ1が前記受圧部3の動きに連動して前記磁性体ケース2の内外を出入りすることで、当該リードスイッチ1のリード端子及びその接点10に向かう磁力線に増減が生じる(磁界に変化が生じる)。
 即ち、前記磁性体ケース2は、前記リードスイッチ1の進退により前記の如く前記接点10を有効磁界の内外に置き換える機能を果たし、前記磁性体ケース2から脱出して前記接点10が前記磁石9の有効磁界内となり、リード端子及びその接点10に向う磁力線が増加した時は、当該リード端子の接点10が閉じる(閉回路となる)。一方、前記磁性体ケース2に進入して前記接点10が前記磁石9の有効磁界外となり、リード端子及びその接点10に向う磁力線が減少したときは、当該リード端子の接点10が開放する(開回路となる)。
The pan detection switch is configured as described above, and when the reed switch 1 moves in and out of the magnetic material case 2 in conjunction with the movement of the pressure receiving portion 3, the reed terminal of the reed switch 1 and its lead switch An increase or decrease occurs in the line of magnetic force toward the contact 10 (a change in the magnetic field occurs).
That is, the magnetic body case 2 functions to replace the contact 10 between the inside and the outside of the effective magnetic field as described above by advancing and retracting the reed switch 1, and the contact 10 is the magnet 9 by escaping from the magnetic body case 2. When the magnetic field lines within the effective magnetic field and directed to the lead terminal and its contact point 10 increase, the contact point 10 of the lead terminal is closed (a closed circuit). On the other hand, when the contact 10 enters the magnetic material case 2 and the contact 10 becomes out of the effective magnetic field of the magnet 9 and the line of magnetic force toward the lead terminal and its contact 10 decreases, the contact 10 of the lead terminal is opened (open Circuit).
 尚、本発明による鍋検知スイッチは、前記受圧部3への加圧によって前記磁性体ケース2が進退自在となるように支持し、前記磁性体ケース2の進退に伴って当該磁性体ケース2をリードスイッチ1が出没するように構成することもできる。
 また、前記磁性体ケース2に没した時に、前記リードスイッチ1の接点10を閉じる構成を採ることも可能である。
In the pan detection switch according to the present invention, the magnetic material case 2 is supported so as to be able to move back and forth by pressing the pressure receiving portion 3, and the magnetic material case 2 is moved with the movement of the magnetic material case 2. The reed switch 1 can also be configured to appear and retract.
It is also possible to adopt a configuration in which the contact 10 of the reed switch 1 is closed when it is sunk in the magnetic case 2.
  A 可動部,B ガイド部,
  C ケーブル,S コイルバネ,T 温度センサー,
  1 リードスイッチ,
  2 磁性体ケース,
  3 受圧部,3a 底縁,3b 引き出し孔,3c 摺動環
  4 ガイド管,4a 鍔部,
  5 鞘管,6 磁性体コア,
  7 クリップ,8 密封容器,9 磁石,10 接点,11 接点ケーブル,
  101 リードスイッチ,102 磁石,103 磁性体
 
 
 
A movable part, B guide part,
C cable, S coil spring, T temperature sensor,
1 reed switch,
2 magnetic case,
3 Pressure receiving portion, 3a bottom edge, 3b extraction hole, 3c sliding ring 4 guide tube, 4a ridge portion,
5 sheath, 6 magnetic core,
7 clips, 8 sealed containers, 9 magnets, 10 contacts, 11 contacts cable,
101 reed switch, 102 magnet, 103 magnetic body

Claims (4)

  1.  受圧部への加圧によって進退自在となるように支持されたリードスイッチと、前記リードスイッチの進退に伴って当該リードスイッチが出没する磁性体ケースを備え、
     前記リードスイッチは、磁界を形成する磁石と当該磁石の有効磁界内で閉じる接点を定位置に備え、
     前記磁性体ケースは、前記リードスイッチの出没により前記接点を前記磁石の有効磁界の内外に置き換えるとすることを特徴とする鍋検知スイッチ。
    A reed switch supported so as to be able to move forward and backward by pressure applied to the pressure receiving portion, and a magnetic material case from which the reed switch protrudes and retracts as the reed switch moves back and forth.
    The reed switch comprises at a fixed position a magnet that forms a magnetic field and a contact that closes within the effective magnetic field of the magnet.
    A switch according to claim 1, wherein the magnetic material case replaces the contact point between the inside and outside of the effective magnetic field of the magnet by the insertion and retraction of the reed switch.
  2.  受圧部への加圧によって進退自在となるように支持された磁性体ケースと、前記磁性体ケースの進退に伴って当該磁性体ケースを出没するリードスイッチを備え、
     前記リードスイッチは、磁界を形成する磁石と当該磁石の有効磁界内で閉じる接点を定位置に備え、
     前記磁性体ケースは、前記リードスイッチの出没により前記接点を前記磁石の有効磁界の内外に置き換えるとすることを特徴とする鍋検知スイッチ。
    A magnetic body case supported so as to be able to move forward and backward by pressure applied to the pressure receiving portion, and a reed switch for retracting the magnetic body case as the magnetic case moves forward and backward.
    The reed switch comprises at a fixed position a magnet that forms a magnetic field and a contact that closes within the effective magnetic field of the magnet.
    A switch according to claim 1, wherein the magnetic material case replaces the contact point between the inside and outside of the effective magnetic field of the magnet by the insertion and retraction of the reed switch.
  3.  前記リードスイッチは、前記磁石及び前記接点が前記リードスイッチの進退方向に沿って配置されると共に、当該磁石は、前記磁性体ケース側に配置され、
     前記磁性体ケースは、前記磁石の進入により前記接点を有効磁界外とすることを特徴とする請求項1又は請求項2のいずれかに記載の鍋検知スイッチ。
    In the reed switch, the magnet and the contact point are disposed along the advancing and retracting direction of the reed switch, and the magnet is disposed on the magnetic body case side.
    The pan detection switch according to any one of claims 1 and 2, wherein the magnetic body case makes the contact point outside the effective magnetic field by the entry of the magnet.
  4.  前記磁石は、その磁極が前記リードスイッチの進退方向に沿って配置されていることを特徴とする請求項1乃至請求項3のいずれかに記載の鍋検知スイッチ。
     
    The pan detection switch according to any one of claims 1 to 3, wherein the magnetic pole of the magnet is disposed along the advancing / retracting direction of the reed switch.
PCT/JP2018/027493 2017-08-10 2018-07-23 Pan detection switch WO2019031213A1 (en)

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JP2017-155591 2017-08-10
JP2017155591A JP2019036420A (en) 2017-08-10 2017-08-10 Pot detection switch

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0468324U (en) * 1990-10-25 1992-06-17
JP2000040452A (en) * 1998-07-23 2000-02-08 Tokin Ceramics Corp Proximity switch
JP2007333262A (en) * 2006-06-13 2007-12-27 Nec Tokin Corp Heated container detecting mechanism and cooking stove using the same
JP2015094523A (en) * 2013-11-12 2015-05-18 株式会社ハーマン Method of manufacturing temperature detection device for heating cooker

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0468324U (en) * 1990-10-25 1992-06-17
JP2000040452A (en) * 1998-07-23 2000-02-08 Tokin Ceramics Corp Proximity switch
JP2007333262A (en) * 2006-06-13 2007-12-27 Nec Tokin Corp Heated container detecting mechanism and cooking stove using the same
JP2015094523A (en) * 2013-11-12 2015-05-18 株式会社ハーマン Method of manufacturing temperature detection device for heating cooker

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