JPS5846497Y2

JPS5846497Y2 - disc type thermostat

Info

Publication number: JPS5846497Y2
Application number: JP16601377U
Authority: JP
Inventors: 信市中島
Original assignee: 松下電器産業株式会社
Priority date: 1977-12-09
Filing date: 1977-12-09
Publication date: 1983-10-22
Also published as: JPS5490676U

Description

【考案の詳細な説明】本考案はディスク型サーモスタットに関し、確実に動作
するディスク型サーモスタットを提供しようとするもの
である。[Detailed Description of the Invention] The present invention relates to a disk-type thermostat, and aims to provide a disk-type thermostat that operates reliably.

従来、ディスク型サーモスタットは第１図に示すように
、先端に可動接点１を固着した接点バネ２および固定接
点３を絶縁ケース４に端子５と共に固定し、この絶縁ケ
ース４の上面に電気絶縁性の伝達棒６を遊嵌する絶縁物
からなるガイド体７を載置し、さらにこのガイド体７に
皿形バイメタル８を遊嵌せしぬ、この上から金属製キャ
ップ９により、皿形バイメタル８を遊嵌せしめたままガ
イド体７を絶縁ケース４と共にかしめたものであつた。Conventionally, as shown in FIG. 1, a disk-type thermostat has a contact spring 2 with a movable contact 1 fixed to its tip and a fixed contact 3 fixed together with a terminal 5 in an insulating case 4, and an electrically insulating material on the top surface of the insulating case 4. A guide body 7 made of an insulator into which the transmission rod 6 is loosely fitted is placed, and the dish-shaped bimetal 8 is not loosely fitted onto this guide body 7. The guide body 7 was caulked together with the insulating case 4 while the guide body 7 was loosely fitted.

この従来のディスク型サーモスタットはガイド体７と伝
達棒６の寸法関係にバラツキが生じやすく、このため設
定温度以外の温度で動作する場合があった。This conventional disk type thermostat tends to have variations in the dimensional relationship between the guide body 7 and the transmission rod 6, and therefore may operate at a temperature other than the set temperature.

そこで、本願出願人は実願昭５２−１１４３５２号にて
上記従来の欠点を解消したディスク型サーモスタットを
提案した。Therefore, the applicant of the present application proposed a disk type thermostat which solved the above-mentioned conventional drawbacks in Utility Model Application No. 114352/1982.

本考案はこのディスク型サーモスタットの改良に係り、
確実な動作をするディスク型サーモスタットを提供する
ものであり、第３，４図とともに説明する。This invention relates to the improvement of this disc type thermostat.
This provides a disc-type thermostat that operates reliably, and will be explained in conjunction with FIGS. 3 and 4.

第３図は本実施例のディスク型サーモスタットの縦断面
図であり、上記従来の構成と同−構成部分に対し同一番
号を付し、説明は省略する。FIG. 3 is a longitudinal cross-sectional view of the disk-type thermostat of this embodiment, in which the same components as those of the above-mentioned conventional structure are denoted by the same numbers and their explanations will be omitted.

図がら明らかな如く、絶縁ケース１１の上部内側には皿
形バイメタル８が載置される第１段部１２が形成してあ
り、この下方に位置してガイド体１３が載置される第２
段部１４が形威しである。As is clear from the figure, a first step portion 12 on which a dish-shaped bimetal 8 is placed is formed inside the upper part of the insulating case 11, and a second step portion 12 on which a guide body 13 is placed is formed below this step portion 12.
The stepped portion 14 is a formal feature.

ガイド体１３の上端に位置する絶縁ケース１１の内周壁
には環状の凹部１５か′設けられ、この凹部１５には第
３図イ。An annular recess 15 is provided in the inner circumferential wall of the insulating case 11 located at the upper end of the guide body 13, as shown in FIG.

口に示すような固定リング、例えば弾性体からなり、一
部が欠除−た固定リング１６が挿入されている。A fixing ring as shown at the mouth, for example, a fixing ring 16 made of an elastic material with a portion removed, is inserted.

上記構成において、ガイド体１３は下方を第２段部によ
り、また上方を固定リング１６によりそれぞれ位置規定
されており、絶縁ケース１１内で上下動することはない
。In the above configuration, the guide body 13 is positioned at the bottom by the second step portion and at the top by the fixing ring 16, and does not move up and down within the insulating case 11.

従って、テ゛イスク型サーモスタットを上下逆方向に配
置したり、横転状態としたりしても、ガイド体１３は移
動しないので伝達棒６の円滑な動きが常に保たれ、皿形
バイメタル８の動作を確実に接点バネ２に伝達でき、接
点１，２間を開閉する。Therefore, even if the disk type thermostat is placed upside down or rolled over, the guide body 13 does not move, so the smooth movement of the transmission rod 6 is always maintained, and the operation of the dish type bimetal 8 is ensured. It can be transmitted to the contact spring 2, opening and closing between the contacts 1 and 2.

以上の説明から明らかなように本考案のディスク型サー
モスタットは、絶縁ケースに設けられた段部と固定リン
グによりガイド体の位置規定がなされるので皿形バイメ
タルの動作を伝達棒を介して確実に接点バネに伝え、接
点を開閉することができ、実用的信置の大なるものであ
る。As is clear from the above description, in the disc-type thermostat of the present invention, the position of the guide body is determined by the step provided on the insulating case and the fixing ring, so the movement of the dish-shaped bimetal is reliably transmitted via the transmission rod. The signal can be transmitted to the contact spring to open and close the contact, which has great practical reliability.

[Brief explanation of the drawing]

第１図は従来のディスク型サーモスタットの縦断面図、
第２図は本考案の一実施例を示すディスク型サーモスタ
ットの縦断面図、第３図イは同ディスク型サーモスタッ
トに用いられる固定リングの平面図、第３図口は同固定
リングの断面図である。１・・・・・・接点、２・・・・・・接点バネ、３・・
・・・・固定接点、６・・・・・・端子棒、８・・・・
・・皿形バイメタル、１１・・・・・・絶縁ケース、１
２・・・・・・第１段部、１３・・・・・・ガイド体、
１４・・・・・・第２段部、１５・・・・・・凹部、１
６・・・・・・固定リング。Figure 1 is a longitudinal cross-sectional view of a conventional disc-type thermostat.
Figure 2 is a longitudinal cross-sectional view of a disc-type thermostat showing an embodiment of the present invention, Figure 3A is a plan view of a fixing ring used in the disc-type thermostat, and Figure 3 is a cross-sectional view of the fixing ring. be. 1...Contact, 2...Contact spring, 3...
... Fixed contact, 6 ... Terminal bar, 8 ...
...Dish-shaped bimetal, 11...Insulation case, 1
2...First step part, 13...Guide body,
14... Second stage part, 15... Concave part, 1
6...Fixing ring.

Claims

[Scope of utility model registration request]

In a disk-type thermostat that uses reversal and return of a dish-shaped bimetal to open and close contacts via a transmission rod, a first stage portion on which the dish-shaped bimetal is placed is placed inside an upper part of an insulating case equipped with a contact member. At the same time, a second stage part is provided below this on which a guide body is placed that supports the transmission rod so as to be movable up and down, and an annular recess is provided in the inner circumferential wall of the insulating case at the upper end of the guide member, and the guide body is fixed in the recess. A disc-type thermostat characterized by an inserted ring.