JPH076590Y2 - Thermo switch - Google Patents
Thermo switchInfo
- Publication number
- JPH076590Y2 JPH076590Y2 JP1984109619U JP10961984U JPH076590Y2 JP H076590 Y2 JPH076590 Y2 JP H076590Y2 JP 1984109619 U JP1984109619 U JP 1984109619U JP 10961984 U JP10961984 U JP 10961984U JP H076590 Y2 JPH076590 Y2 JP H076590Y2
- Authority
- JP
- Japan
- Prior art keywords
- movable plate
- bimetal
- plunger
- thermoswitch
- contact
- 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 - Lifetime
Links
Landscapes
- Thermally Actuated Switches (AREA)
Description
【考案の詳細な説明】 a.産業上の利用分野 本考案はバイメタルの熱応動によつて回路を開閉するサ
ーモスイツチに関する。[Detailed Description of the Invention] a. Field of Industrial Application The present invention relates to a thermoswitch that opens and closes a circuit by the thermal response of a bimetal.
b.従来技術 従来、前記サーモスイツチにおいては、その作動温度に
多少のバラツキがあることは避けられないが、そのバラ
ツキを発生させる大きな要因として可動板のバネ圧力に
よる影響がある。b. Prior Art Conventionally, in the thermoswitch, it is inevitable that the operating temperature has some variation, but the spring pressure of the movable plate is an important factor that causes the variation.
第３図は前記従来の常時開回路のサーモスイツチの一例
を示す断面説明図で、１はベース、２は可動板、３は可
動板２の端部に固定された可動接点、４は固定接点、５
は可動端子、６は固定端子、８はプランジヤー、９はバ
イメタル、10はＯリング、11はケース、12はチユーブ、
13はリード線組立、14は充填材である。FIG. 3 is a cross-sectional explanatory view showing an example of the conventional normally open circuit thermostat, 1 is a base, 2 is a movable plate, 3 is a movable contact fixed to the end of the movable plate 2, and 4 is a fixed contact. 5,
Is a movable terminal, 6 is a fixed terminal, 8 is a plunger, 9 is a bimetal, 10 is an O-ring, 11 is a case, 12 is a tube,
13 is a lead wire assembly, and 14 is a filler.
いま、温度変化によつてバイメタル９が反転すると、そ
の反転圧力によつてプランジヤ８を介して可動板２が押
し下げられ、可動板２の端部の可動接点３が固定接点４
に接触し、閉回路を形成するようになつている。Now, when the bimetal 9 is reversed due to the temperature change, the reversing pressure pushes down the movable plate 2 through the plunger 8, and the movable contact 3 at the end of the movable plate 2 is fixed.
To form a closed circuit.
バイメタル９は温度変化に応動して反転する場合に、第
４図に示すように徐動区間Ｓと速動区間Ｑとがあり、前
記構成のサーモスイツチでは徐動区間Ｓの間もプランジ
ヤ８を介して可動板２が常に押圧され、バイメタル９と
可動板２とは互に干渉した状態にある。すなわち、バイ
メタル９は可動板２の逆方向のバネ圧力を常に受け、そ
の反転を阻止しようとする力が作用している。そして、
さらにバイメタル９の変形が進み、速動区間Ｑに到つ
て、急速に反転することになる。すなわち、可動板２の
バネ圧力の相違によつて反転温度が影響を受ける。これ
はバネ圧力のバラツキによつて反転温度がバラツクこと
を意味している。たとえば、バネ圧力が20gの範囲でバ
ラツキがあつた場合、バイメタル単体の場合の応動温度
のバラツキに対し、これをサーモスイツチとして組付け
た場合には、約２倍にバラツキに拡大することが知られ
ている。When the bimetal 9 is turned over in response to a change in temperature, it has a slow motion section S and a fast motion section Q as shown in FIG. The movable plate 2 is constantly pressed via the bimetal 9 and the movable plate 2 interferes with each other. That is, the bimetal 9 always receives the spring pressure in the opposite direction of the movable plate 2, and the force for preventing the reversal of the spring acts. And
Further, the bimetal 9 is further deformed, reaches the fast-moving section Q, and is rapidly reversed. That is, the reversal temperature is affected by the difference in the spring pressure of the movable plate 2. This means that the inversion temperature varies due to the variation in spring pressure. For example, when the spring pressure varies in the range of 20 g, it is known that when the bimetal alone is used, the response temperature will vary by about 2 times when assembled as a thermo switch. Has been.
c.考案の目的 本考案は前記事情に鑑みてなされたもので、前記従来の
サーモスイツチの欠点を解消し、可動板等のバネ圧力の
バラツキの影響を少なくし、バラツキが極めて少なく、
精度の高いサーモスイツチを提供しようとするものであ
る。c. Purpose of the invention The present invention has been made in view of the above circumstances, eliminates the drawbacks of the conventional thermoswitch, reduces the influence of the spring pressure variation of the movable plate, etc., and has extremely little variation.
The aim is to provide a highly accurate thermoswitch.
d.考案の構成 本考案は接点を備えたバネ性を有する可動板をベース上
に設け、該可動板にプランジャーの一端を接し、該プラ
ンジャの他端側にバイメタルを配置して、これらをケー
ス内に収容し、該バイメタルの熱応動を前記プランジャ
ーを介して前記可動板に伝達して回路を開閉するように
した常時開回路のサーモスイッチにおいて、前記ケース
内壁に、前記可動板を押圧して、その動きを制限する環
状の押え板を嵌設し、前記バイメタルの熱応動の徐動区
間から速動区間に移行する時期まで前記可動板を押圧し
ているように、前記押え板の位置を設定したことを特徴
とするサーモスイッチである。d. Configuration of the Invention The present invention provides a movable plate having a spring property with contacts on a base, one end of a plunger is brought into contact with the movable plate, and a bimetal is arranged on the other end side of the plunger. In a thermoswitch of a normally open circuit that is housed in a case and transmits the thermal response of the bimetal to the movable plate via the plunger to open and close the circuit, the movable plate is pressed against the inner wall of the case. Then, an annular holding plate that restricts the movement is fitted, and the holding plate of the holding plate is pressed so that the movable plate is pressed until the transition from the slow-moving section of the thermal reaction of the bimetal to the fast-moving section. It is a thermoswitch characterized by setting a position.
e.実施例 以下、本考案の実施例について、図面を参照しながら詳
細に説明する。e. Embodiment Hereinafter, an embodiment of the present invention will be described in detail with reference to the drawings.
第１図及び第２図は本考案のサーモスイツチの断面説明
図と平面図であり、第３図に示した従来のサーモスイツ
チと同一部材には同一符号を付して、説明を省略する。1 and 2 are a cross-sectional explanatory view and a plan view of the thermoswitch of the present invention. The same members as those of the conventional thermoswitch shown in FIG. 3 are designated by the same reference numerals, and the description thereof will be omitted.
図において、７はケース11に装着された環状の押え板
で、該押え板７は、その下端部20において、可動板２の
可動接点３側の端部に接し、可動板２を軽く押圧してい
る。In the figure, reference numeral 7 denotes an annular pressing plate mounted on the case 11, and the pressing plate 7 is in contact with an end of the movable plate 2 on the side of the movable contact 3 at a lower end 20 thereof to lightly press the movable plate 2. ing.
そして可動板２がプランジヤ８に押圧されて下降し始
め、その可動接点３が固定接点４に接して閉回路を形成
するまでの行程を、前記第４図で示したバイメタル９の
速動区間Ｑの距離内に設定する。すなわち、バイメタル
９の徐動区間Ｓにおいては、プランジヤー８を介してお
こなうバイメタル９の押圧力は可動板２に作用しないよ
うに構成する。The movable plate 2 is pressed by the plunger 8 and begins to descend, and the moving contact 3 comes into contact with the fixed contact 4 to form a closed circuit. Set within the distance of. In other words, in the slow-moving section S of the bimetal 9, the pressing force of the bimetal 9 exerted via the plunger 8 does not act on the movable plate 2.
したがつて、いま、バイメタル９が温度変化によつて応
動する場合、前記徐動区間Ｓの間は、何等可動板２を押
圧せず、速動区間Ｑに入つた時に、初めて押圧力が可動
板２に作用する。そして、バイメタル９が急速に反転し
て、可動板２を押し、閉回路を形成する。Therefore, when the bimetal 9 responds to the temperature change, the movable plate 2 is not pressed during the gradual movement section S, and the pressing force is moved only when the bimetal 9 enters the fast movement section Q. It acts on the plate 2. Then, the bimetal 9 is rapidly inverted to push the movable plate 2 to form a closed circuit.
なお、前記バイメタル９の熱応動に対し、前記バネ機能
が干渉しない区間は、徐動区間の大部分、または全部、
さらには一部速動区間に入つてもよい。The section where the spring function does not interfere with the thermal response of the bimetal 9 is most or all of the slow-moving section,
Further, it may enter a part of the high speed section.
また、前記可動板２の保持は、前記実施例における押え
板７の態様のみに限定されるものではなく、同様の機能
を果す他の態様の保持手段によつてもよいことは勿論で
ある。Further, the holding of the movable plate 2 is not limited to the mode of the pressing plate 7 in the above-described embodiment, and it goes without saying that the movable plate 2 may be held by a holding means of another mode having the same function.
f.考案の効果 以上のように、本考案に係るサーモスイツチによれば、
バイメタルの応動時における徐動区間においては、バイ
メタルの圧押力を可動接点を設けた可動板に作用させ
ず、速動区間においてのみ作用させるようにしたので、
従来のように可動板のバネ圧力のバラツキによつて発生
する応動温度のバラツキを、極めて少なくすることがで
き、精度の高いサーモスイツチが提供できる。また、可
動板を拘束する押え板を環状としてケース内壁に嵌設し
たので、セットが容易で、単純かつコンパクトな構成と
なる。f. Effect of the Invention As described above, according to the thermoswitch according to the present invention,
In the slow-moving section when the bimetal responds, the pressing force of the bimetal is not applied to the movable plate provided with the movable contact, but is applied only in the fast-moving section.
It is possible to extremely reduce the variation in the reaction temperature caused by the variation in the spring pressure of the movable plate as in the conventional case, and it is possible to provide a highly accurate thermoswitch. Further, since the pressing plate for restraining the movable plate is fitted in the inner wall of the case in an annular shape, the setting is easy, and the structure is simple and compact.
第１図は本考案に係るサーモスイツチの断面説明図、第
２図は第１図の平面図、第３図は従来のサーモスイツチ
の断面説明図、第４図はバイメタルの熱応動特性の説明
図である。 １……ベース、２……可動板、３……可動接点、４……
固定接点、８……プランジヤー、９……バイメタル、11
……ケース。FIG. 1 is a cross-sectional explanatory view of a thermo switch according to the present invention, FIG. 2 is a plan view of FIG. 1, FIG. 3 is a cross-sectional explanatory view of a conventional thermo switch, and FIG. It is a figure. 1 ... Base, 2 ... Movable plate, 3 ... Movable contact, 4 ...
Fixed contact, 8 ... Plunger, 9 ... Bimetal, 11
……Case.
Claims (1)
ス上に設け、該可動板にプランジャーの一端を接し、該
プランジャの他端側にバイメタルを配置して、これらを
ケース内に収容し、該バイメタルの熱応動を前記プラン
ジャーを介して前記可動板に伝達して回路を開閉するよ
うにした常時開回路のサーモスイッチにおいて、前記ケ
ース内壁に、前記可動板を押圧して、その動きを制限す
る環状の押え板を嵌設し、前記バイメタルの熱応動の徐
動区間から速動区間に移行する時期まで前記可動板を押
圧しているように、前記押え板の位置を設定したことを
特徴とするサーモスイッチ。1. A movable plate having a spring property provided with a contact is provided on a base, one end of a plunger is brought into contact with the movable plate, and a bimetal is arranged on the other end side of the plunger. In a thermoswitch of a normally open circuit that accommodates and transmits the thermal response of the bimetal to the movable plate via the plunger to open and close the circuit, pressing the movable plate against the inner wall of the case, An annular holding plate that restricts the movement is fitted, and the position of the holding plate is set so that the movable plate is pressed until the transition from the slow-moving section of the bimetal to the fast-moving section. A thermoswitch that is characterized.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1984109619U JPH076590Y2 (en) | 1984-07-20 | 1984-07-20 | Thermo switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1984109619U JPH076590Y2 (en) | 1984-07-20 | 1984-07-20 | Thermo switch |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6124933U JPS6124933U (en) | 1986-02-14 |
| JPH076590Y2 true JPH076590Y2 (en) | 1995-02-15 |
Family
ID=30668760
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1984109619U Expired - Lifetime JPH076590Y2 (en) | 1984-07-20 | 1984-07-20 | Thermo switch |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH076590Y2 (en) |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS56106337U (en) * | 1980-01-19 | 1981-08-19 |
-
1984
- 1984-07-20 JP JP1984109619U patent/JPH076590Y2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6124933U (en) | 1986-02-14 |
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