JP3052349B2 - Thermal protector - Google Patents
Thermal protectorInfo
- Publication number
- JP3052349B2 JP3052349B2 JP2203286A JP20328690A JP3052349B2 JP 3052349 B2 JP3052349 B2 JP 3052349B2 JP 2203286 A JP2203286 A JP 2203286A JP 20328690 A JP20328690 A JP 20328690A JP 3052349 B2 JP3052349 B2 JP 3052349B2
- Authority
- JP
- Japan
- Prior art keywords
- fixed
- electrode plate
- movable electrode
- movable
- plate
- 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 - Fee Related
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H37/00—Thermally-actuated switches
- H01H37/02—Details
- H01H37/32—Thermally-sensitive members
- H01H37/52—Thermally-sensitive members actuated due to deflection of bimetallic element
- H01H37/54—Thermally-sensitive members actuated due to deflection of bimetallic element wherein the bimetallic element is inherently snap acting
- H01H2037/5481—Thermally-sensitive members actuated due to deflection of bimetallic element wherein the bimetallic element is inherently snap acting the bimetallic snap element being mounted on the contact spring
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H37/00—Thermally-actuated switches
- H01H37/02—Details
- H01H37/32—Thermally-sensitive members
- H01H37/52—Thermally-sensitive members actuated due to deflection of bimetallic element
- H01H37/54—Thermally-sensitive members actuated due to deflection of bimetallic element wherein the bimetallic element is inherently snap acting
- H01H37/5427—Thermally-sensitive members actuated due to deflection of bimetallic element wherein the bimetallic element is inherently snap acting encapsulated in sealed miniaturised housing
Landscapes
- Thermally Actuated Switches (AREA)
Description
【発明の詳細な説明】 産業上の利用分野 本発明は各種電気機器、例えばモータまたは蛍光灯安
定器等に用いられ、異常時の発熱および過電流等による
電気機器の焼損防止のためのサーマルプロテクタ、特に
小型のサーマルプロテクタに関するものである。Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention is used for various electric devices, for example, motors or fluorescent lamp stabilizers, and is a thermal protector for preventing burnout of electric devices due to heat generation and overcurrent at abnormal times. In particular, it relates to a small thermal protector.
従来の技術 従来のサーマルプロテクタとして第6図(a),
(b)に示すような構成を有しているものが知られてい
る(特開昭59−189520号公報)。このサーマルプロテク
タにおいて、可動電極体は、第7図に示すように、ばね
性を有する可動電極プレート12の先端に可動接点13を固
着し、可動電極プレート12の背面に熱応動素子板14を固
定して一体化されている。そして、この固定は、可動電
極プレート12の支持部12a,12b,12cによって囲まれた部
分に熱応動素子板14を入れて可動電極プレート12の背面
に位置させ、これらの支持部12a,12bをかしめることに
よって行われている。この場合、熱応動素子板14の反転
および復帰動作に支障がないよう、熱応動素子板14は可
動電極プレート12の支持部12a,12b,12cに対し、わずか
の裕度を持って動くことができるようになっている。さ
らに、可動側リード線15に可動電極プレート12の溶接部
12dを固着して、可動電極体を構成する。一方、固定接
点16を固定側リード線17に固着して固定電極体を構成
し、これらの電極体を可動接点13と固定接点16が対向す
るように位置させ、ガラスビード18にて一体化し、マウ
ント体を構成している。このマウント体はガラス容器19
に収納し、この中に窒素等の不活性ガスを封入し、ガラ
ス容器19の端部を加熱して封止されている。FIG. 6A shows a conventional thermal protector.
One having the configuration shown in FIG. 1B is known (Japanese Patent Laid-Open No. 59-189520). In this thermal protector, as shown in FIG. 7, the movable electrode body has a movable contact 13 fixed to the tip of a movable electrode plate 12 having a spring property, and a thermally responsive element plate 14 fixed to the back of the movable electrode plate 12. It is integrated. This fixing is performed by inserting the thermally responsive element plate 14 into a portion of the movable electrode plate 12 surrounded by the support portions 12a, 12b, and 12c, and positioning the thermally responsive element plate 14 on the back surface of the movable electrode plate 12, and moving these support portions 12a and 12b. It is done by caulking. In this case, the thermally responsive element plate 14 may move with a slight allowance with respect to the support portions 12a, 12b, 12c of the movable electrode plate 12 so as not to hinder the inversion and return operations of the thermally responsive element plate 14. I can do it. In addition, the movable electrode plate 12 is welded to the movable lead 15
12d is fixed to form a movable electrode body. On the other hand, the fixed contact 16 is fixed to the fixed-side lead wire 17 to form a fixed electrode body, these electrode bodies are positioned so that the movable contact 13 and the fixed contact 16 face each other, and integrated with a glass bead 18, Make up the mount. This mount is a glass container 19
And an inert gas such as nitrogen is sealed therein, and the end of the glass container 19 is heated and sealed.
このような構成を有するサーマルプロテクタは、モー
タ等に取り付けられ、異常時の温度過昇および過電流に
感応して、熱応動素子板14が反転復帰動作を行い、かつ
可動電極プレート12が対応した動作を行って、可動接点
13と固定接点16の開閉を行いモータ等の焼損を防止する
機能を持っている。The thermal protector having such a configuration is attached to a motor or the like, and in response to an excessive temperature rise and an overcurrent at the time of an abnormality, the thermally responsive element plate 14 performs an inversion return operation, and the movable electrode plate 12 corresponds. Perform the operation, the movable contact
It has a function to open and close 13 and fixed contacts 16 to prevent burnout of motors and the like.
発明が解決しようとする課題 このような構造のサーマルプロテクタは、小型化して
いく場合、容器の容積が小さくなるために、ガラス容器
19と熱応動素子板14との隙間も小さくなり、熱応動素子
板14が動いた際に熱応動素子板14がガラス容器19に接触
し、正常な反転復帰動作を起こさないという重大な欠点
があった。また、このサーマルプロテクタでは、可動電
極プレート12に対し熱応動素子板14がわずかの裕度を持
って動くようにしてあるために、サーマルプロテクタを
手に持って振った場合、熱応動素子板14が移動してガラ
ス容器19に当たってカチ,カチというような音が出ると
いう欠点があった。Problems to be Solved by the Invention When a thermal protector having such a structure is miniaturized, the volume of the container becomes small, so that a glass container is used.
The gap between the thermal response element plate 19 and the thermal response element plate 14 is also reduced, and when the thermal response element plate 14 moves, the thermal response element plate 14 comes into contact with the glass container 19, and a serious disadvantage that normal inversion return operation does not occur. there were. Further, in this thermal protector, since the thermally responsive element plate 14 moves with a slight margin with respect to the movable electrode plate 12, when the thermal protector is shaken by hand, the thermally responsive element plate 14 is moved. However, there is a drawback in that the sound moves and hits the glass container 19 to make a clicking sound.
本発明はこのような問題点を解決するためになされた
もので、モータや蛍光灯安定器等に使用しても異常な反
転復帰動作を引き起こすおそれがなく、またサーマルプ
ロテクタを手に持って振っても音がせず、さらに接点間
の接触抵抗が安定した高品質の小型サーマルプロテクタ
を提供するものである。The present invention has been made in order to solve such a problem, and there is no danger that an abnormal inversion return operation will be caused even when the thermal protector is used in a motor or a fluorescent light ballast. An object of the present invention is to provide a high-quality small-sized thermal protector that does not generate noise and has stable contact resistance between contacts.
課題を解決するための手段 本発明のサーマルプロテクタは、固定接点を一端部に
固着した固定電極プレートを備えた固定電極体と、固定
端部に複数個の穴を有し、かつ可動端部に前記固定接点
に対し接離する可動接点を先端部に固着した可動電極プ
レートを備えたばね性を有する可動電極体とを対向さ
せ、前記固定電極プレートの他端部を、前記可動電極体
に向かって延びる複数個の支柱を設けた一方の樹脂製の
絶縁ブロックに貫通固着し、前記一方の絶縁ブロックと
前記複数個の支柱が挿通する複数個の穴を有する他方の
樹脂製の絶縁ブロックとの間に、前記可動電極プレート
の固定端部と、閉成時において、前記可動電極プレート
を前記固定電極プレート側に押すように前記可動電極プ
レートの背面に沿って湾曲して設けられ、かつこの可動
電極プレートの先端部を前記背面側に折り返して形成さ
れた爪部で可動端部がわずかの裕度を持って係止された
熱応動素子板の複数個の穴を有する固定端部とを設け、
かつ前記一方の絶縁ブロックの支柱を前記可動電極プレ
ートおよび前記熱応動素子板の各々の穴を通して前記他
方の絶縁ブロックの穴にそれぞれ挿通させ、前記穴から
突出した前記支柱の先端部をかしめることにより前記一
対の絶縁ブロックで前記固定電極プレートの他端部と、
前記可動電極プレートの固定端部と、前記熱応動素子板
の固定端部とを挟んで一体化してなるマウント体を容器
内に設けたものである。Means for Solving the Problems The thermal protector of the present invention has a fixed electrode body provided with a fixed electrode plate having a fixed contact fixed to one end, a plurality of holes at the fixed end, and a movable end at the movable end. A movable electrode body having a movable electrode plate having a movable electrode plate having a movable contact contacting and separating from the fixed contact fixed to a distal end thereof is opposed to a movable electrode body having a spring property, and the other end of the fixed electrode plate is directed toward the movable electrode body. A plurality of extending pillars are provided and penetrated and fixed to one resin insulating block, and between the one insulating block and the other resin insulating block having a plurality of holes through which the plurality of pillars are inserted. The fixed end of the movable electrode plate, when closed, is provided along the back surface of the movable electrode plate so as to push the movable electrode plate toward the fixed electrode plate side, and A fixed end portion having a plurality of holes of the thermally responsive element plate, the movable end portion of which is hooked with a slight margin by a claw portion formed by folding a tip end portion of the movable electrode plate toward the back side. Provided,
And, the column of the one insulating block is inserted into the hole of the other insulating block through the respective holes of the movable electrode plate and the thermally responsive element plate, and the tip of the column protruding from the hole is swaged. With the pair of insulating blocks, the other end of the fixed electrode plate,
A mount body integrated with a fixed end of the movable electrode plate and a fixed end of the thermally responsive element plate is provided in a container.
作用 本発明は、サーマルプロテクタに振動や衝撃を加えた
場合に熱応動素子板が動いて音が出たり、また熱応動素
子板が容器の内壁面に接触して正常な反転復帰動作を起
こさなくなること等を防ぐために、熱応動素子板の可動
端部の先端は可動電極プレートを背面側に折り返した形
成して爪部にわずかの裕度を持って係止し、かつ固定端
部は可動電極プレートの固定端部とともに固定電極プレ
ートを樹脂成形した絶縁ブロックと押え用絶縁ブロック
とで挟んで絶縁ブロックの支柱をかしめて固定してい
る。その結果、熱応動素子板の可動端部は可動しやすく
係止され、かつ固定端部は固く位置決め固定されるため
に熱応動素子板が不要な方向に動かず、熱応動素子板を
安定させることができる。また、閉成時において、可動
電極プレートを固定電極プレート側に押すように可動電
極プレートの背面に沿って湾曲して熱応動素子板を設け
ることにより、可動接点が固定接点に押圧を生じさせる
ことができる 実施例 以下、本発明の一実施例について図面を用いて説明す
る。Effect of the Invention According to the present invention, when vibration or shock is applied to the thermal protector, the thermally responsive element plate moves and generates a sound, and the thermally responsive element plate contacts the inner wall surface of the container and does not cause a normal inversion return operation In order to prevent this, the tip of the movable end of the thermally responsive element plate is formed by folding the movable electrode plate to the back side and locked with a slight margin to the claw, and the fixed end is the movable electrode A fixed electrode plate is fixed together with a fixed end portion of the plate between a resin-molded insulating block and a holding insulating block by crimping a column of the insulating block. As a result, the movable end of the thermally responsive element plate is easily moved and locked, and the fixed end is firmly positioned and fixed, so that the thermally responsive element plate does not move in an unnecessary direction and stabilizes the thermally responsive element plate. be able to. In addition, when the movable electrode plate is closed, the movable contact plate is pressed along the back surface of the movable electrode plate so as to push the movable electrode plate toward the fixed electrode plate so that the movable contact causes the fixed contact to be pressed. Embodiments of the Invention Hereinafter, an embodiment of the present invention will be described with reference to the drawings.
第1図(a),(b)、第2図(a),(b)、第3
図(a),(b)、第4図(a),(b)、第5図
(a),(b)において、銀系からなる固定接点1を一
端部に溶接により固着した黄銅板からなる固定電極プレ
ート2を備えた固定電極体と、固定端部に2つの穴3a,3
bを有し、中央部にダボ部3cを設け、かつ可動端部に固
定接点1に対し接離する銀系からなる可動接点4を先端
部に溶接により固着した可動電極プレート3を備え、さ
らに先端を可動接点4側とは反対方向へ折り返して形成
された爪部3dを形成したばね性を有する薄いベリリウム
銅板からなる可動電極体とを対向させている。固定電極
プレート2の他端部を、前記可動電極体に向かって延び
る2つの支柱5a,5bを設けた一方のPBT樹脂製の絶縁ブロ
ック5に貫通固着し、一方の絶縁ブロック5と支柱5a,5
bがそれぞれ挿通する2つの穴6a,6bを有する他方のPBT
樹脂製の絶縁ブロック6との間に、可動電極プレート3
の固定端部と、可動電極プレート3を固定電極プレート
2側に押すように可動電極プレート3の背面に沿って湾
曲して設けられ、かつこの可動電極プレートの先端部を
前記背面側に折り返して形成された爪部3dで可動端部が
わずかの裕度を持って係止されたバイメタルからなる熱
応動素子板7の2つの穴7a,7bを有する固定端部とを設
けている。ここで、熱応動素子板7はスナップアクショ
ン動作を行うためと、両接点の閉成時、可動接点4が固
定接点1を押圧するごとくの圧力を生じるために、湾曲
している。そして、一方の絶縁ブロック5の支柱5a,5b
を可動電極プレート3および熱応動素子板7の各穴を通
して他方の絶縁ブロック6の穴6a,6bに挿通させ、これ
らの穴から突出した支柱5a,5bの先端部を超音波溶接で
かしめて皿状に変形させることにより一対の絶縁ブロッ
ク5,6で固定電極プレート2の他端部と、可動電極プレ
ート3の固定端部と、熱応動素子板7の固定端部とを挟
んで一体化している。さらに、固定電極プレート2の固
定端部の先端に被覆リード線8を溶接するとともに、可
動電極プレート3の固定端部の先端に被覆リード線9を
溶接してマウント体を構成している。1 (a), (b), FIGS. 2 (a), (b), 3rd
4 (a), 4 (b), 5 (a), and 5 (b), a fixed contact 1 made of silver is fixed to one end of a brass plate by welding. Electrode body provided with a fixed electrode plate 2 having two holes 3a and 3
a movable electrode plate 3 having a dowel portion 3c at a center portion thereof, a movable contact portion 4 made of silver based on a movable end portion being fixed to and separated from the fixed contact portion 1 by welding to a tip portion, and The movable electrode body made of a springy thin beryllium copper plate and having a claw portion 3d formed by folding the tip in a direction opposite to the movable contact 4 side is opposed to the movable electrode body. The other end of the fixed electrode plate 2 is penetrated and fixed to one of the PBT resin insulating blocks 5 provided with two columns 5a and 5b extending toward the movable electrode body, and one of the insulating blocks 5 and the columns 5a, Five
The other PBT having two holes 6a and 6b through which b respectively passes
The movable electrode plate 3 is interposed between the insulating block 6 and the resin.
And a curved end is provided along the back surface of the movable electrode plate 3 so as to push the movable electrode plate 3 toward the fixed electrode plate 2, and the tip of the movable electrode plate is folded back toward the back surface. A fixed end having two holes 7a, 7b of a thermally responsive element plate 7 made of a bimetal whose movable end is locked with a slight margin by the formed claw 3d is provided. Here, the thermally responsive element plate 7 is curved to perform a snap action operation and to generate a pressure as if the movable contact 4 presses the fixed contact 1 when both contacts are closed. Then, the supports 5a and 5b of the one insulating block 5
Through the holes of the movable electrode plate 3 and the thermally responsive element plate 7 and into the holes 6a, 6b of the other insulating block 6, and crimp the tips of the columns 5a, 5b protruding from these holes by ultrasonic welding. In this way, the pair of insulating blocks 5 and 6 are integrated with the other end of the fixed electrode plate 2, the fixed end of the movable electrode plate 3, and the fixed end of the thermally responsive element plate 7 interposed therebetween. I have. Further, a coated lead wire 8 is welded to the tip of the fixed end of the fixed electrode plate 2 and a coated lead wire 9 is welded to the tip of the fixed end of the movable electrode plate 3 to form a mount body.
このようなマウント体は一端に開口を有するPBT樹脂
からなる長さ17.2mm,幅6.2mm,厚さ3.6mmの小型の容器10
内に収納し、その開口から被覆リード線8.9を外部に導
出し、容器10の開口をエポキシ樹脂からなる充填材11に
て封止している。Such a mount is a small container 10 made of PBT resin having an opening at one end and having a length of 17.2 mm, a width of 6.2 mm, and a thickness of 3.6 mm.
The covered lead wire 8.9 is led out from the opening, and the opening of the container 10 is sealed with a filler 11 made of epoxy resin.
かかる構造の小型のサーマルプロテクタにおいては、
可動電極プレート3を固定電極プレート2側に押すよう
に可動電極プレート3の背面に沿って熱応動素子板7を
設けるとともに、可動電極プレート3に対し熱応動素子
板7の可動端部がわずかな裕度を持って可動電極プレー
ト3の爪部3dによって係止され、かつ固定端部が一対の
絶縁ブロック5,6で可動電極プレート3とともに挟んで
裕度がない状態で固く位置決めされてかしめ固定される
ために、熱応動素子板7の無用な動きがなく振動や衝撃
が加わっても熱応動素子板7が容器10内壁面に接触せ
ず、かつ音もしなくなって、熱応動素子板7の反転復帰
動作に支障がないように安定させることができる。ま
た、閉成時において、可動電極プレートを固定電極プレ
ート側に押すように可動電極プレートの背面に沿って湾
曲して熱応動素子板を設けために、可動接点が固定接点
に押圧を生じさせることができ、固定接点と可動接点と
の接触抵抗を安定化させることができる。In a small thermal protector with such a structure,
A thermally responsive element plate 7 is provided along the back surface of the movable electrode plate 3 so as to push the movable electrode plate 3 toward the fixed electrode plate 2, and the movable end of the thermally responsive element plate 7 is slightly movable with respect to the movable electrode plate 3. It is locked by the claw 3d of the movable electrode plate 3 with a margin, and the fixed end is firmly positioned with a margin without being sandwiched together with the movable electrode plate 3 between the pair of insulating blocks 5 and 6 and fixed by caulking. Therefore, even if vibration or impact is applied without unnecessary movement of the thermoresponsive element plate 7, the thermoresponsive element plate 7 does not contact the inner wall surface of the container 10 and does not make noise, and It is possible to stabilize the inversion return operation so as not to hinder it. Further, when the movable electrode plate is closed, the movable contact causes a pressure on the fixed contact so that the movable electrode plate is curved along the back surface of the movable electrode plate so as to push the movable electrode plate toward the fixed electrode plate to provide the thermoresponsive element plate. And the contact resistance between the fixed contact and the movable contact can be stabilized.
一方、モータ等の電気機器の異常時については、熱応
動素子板7が反転し、熱応動素子板7が可動電極プレー
ト3の爪部3d,ダボ部3cの二点に当接することにより、
可動電極プレート3が熱応動素子板7の反転動作に対応
した動きとなって、固定接点1から可動接点4を開離さ
せることになる。On the other hand, when an electric device such as a motor is abnormal, the thermally responsive element plate 7 is inverted, and the thermally responsive element plate 7 contacts two points of the claw portion 3d and the dowel portion 3c of the movable electrode plate 3,
The movable electrode plate 3 moves in accordance with the reversal operation of the thermally responsive element plate 7, and the movable contact 4 is separated from the fixed contact 1.
このサーマルプロテクタは特に部品を新たに付加する
必要がないため、安価で、かつ小型にもかかわらず、従
来のものと同等の品質性能のものを得ることができる。This thermal protector does not require any additional components, so that it is inexpensive and small in size, but can have the same quality performance as the conventional one.
発明の効果 以上説明したように、本発明は小型になっても、熱応
動素子板の取付けが完全にできるために、容器との隙間
を極力小さくできるばかりでなく、電気機器の正常時の
通常の振動や衝撃に対しても熱応動素子板のガタツキも
なく、かつ異常な動作も未然に防止でき、また接点間の
接触抵抗を安定化させることができるの高い小型のサー
マルプロテクタを安価に提供することができるものであ
る。Effect of the Invention As described above, even if the present invention is downsized, since the thermoresponsive element plate can be completely mounted, not only the gap with the container can be made as small as possible, but also the normal operation of the electric equipment during normal operation. Provides a low-cost, high-performance thermal protector that is stable against thermal vibration and shock, prevents rattling of the thermal response element plate, prevents abnormal operation, and stabilizes the contact resistance between contacts. Is what you can do.
第1図(a),(b)は本発明の一実施例であるサーマ
ルプロテクタの一部切欠側面図および同正面図、第2図
(a),(b)は可動電極体の一例を示す正面図および
側面図、第3図(a),(b)は熱応動素子板の一例を
示す正面図および側面図、第4図(a),(b)は固定
電極体の一例を示す正面図および側面図、第5図
(a),(b)は他方の絶縁ブロックの一例を示す正面
図および側面図、第6図(a),(b)は従来のサーマ
ルプロテクタの一部切欠正面図および同側面図、第7図
は可動電極プレートの斜視図である。 1……固定接点、2……固定電極プレート、3……可動
電極プレート、3a,3b……穴、3d……爪部、4……可動
接点、5,6……絶縁ブロック、5a,5b……支柱、6a,6b…
…絶縁ブロックの穴、7……熱応動素子板、7a,7b……
熱応動素子板の穴。1 (a) and 1 (b) are a partially cutaway side view and a front view of a thermal protector according to an embodiment of the present invention, and FIGS. 2 (a) and 2 (b) show an example of a movable electrode body. FIGS. 3 (a) and 3 (b) are front and side views showing an example of a thermally responsive element plate, and FIGS. 4 (a) and (b) are front views showing an example of a fixed electrode body. FIGS. 5 (a) and 5 (b) are front and side views showing an example of the other insulating block, and FIGS. 6 (a) and 6 (b) are partially cutaway front views of a conventional thermal protector. 7 and FIG. 7 are perspective views of the movable electrode plate. 1 fixed contact, 2 fixed electrode plate, 3 movable electrode plate, 3a, 3b hole, 3d claw, 4 movable contact, 5, 6 insulating block, 5a, 5b …… posts, 6a, 6b…
… Hole of insulation block, 7… Thermal response element plate, 7a, 7b ……
Hole in thermo-responsive element plate.
Claims (1)
ートを備えた固定電極体と、固定端部に複数個の穴を有
し、かつ可動端部に前記固定接点に対し接離する可動接
点を先端部に固着した可動電極プレートを備えたばね性
を有する可動電極体とを対向させ、前記固定電極プレー
トの他端部を、前記可動電極体に向かって延びる複数個
の支柱を設けた一方の樹脂製の絶縁ブロックに貫通固定
し、前記一方の絶縁ブロックと前記複数個の支柱が挿通
する複数個の穴を有する他方の樹脂製の絶縁ブロックと
の間に、前記可動電極プレートの固定端部と、閉成時に
おいて、前記可動電極プレートを前記固定電極プレート
側に押すように前記可動電極プレートの背面に沿って湾
曲して設けられ、かつこの可動電極プレートの先端部を
前記背面側に折り返して形成された爪部で可動端部がわ
ずかの裕度を持って係止された熱応動素子板の複数個の
穴を有する固定端部とを設け、かつ前記一方の絶縁ブロ
ックの支柱を前記可動電極プレートおよび前記熱応動素
子板の各々の穴を通して前記他方の絶縁ブロックの穴に
それぞれ挿通させ、前記穴から突出した前記支柱の先端
部をかしめることにより前記一対の絶縁ブロックで前記
固定電極プレートの他端部と、前記可動電極プレートの
固定端部と、前記熱応動素子板の固定端部とを挟んで一
体化してなるマウント体を容器内に設けたことを特徴と
するサーマルプロテクタ。1. A fixed electrode body having a fixed electrode plate having a fixed contact fixed to one end, a movable end having a plurality of holes at a fixed end, and a movable end contacting and separating from the fixed contact. A movable electrode body having a spring property provided with a movable electrode plate having a contact fixed to a tip end thereof, and the other end of the fixed electrode plate is provided with a plurality of columns extending toward the movable electrode body. A fixed end of the movable electrode plate between the one insulating block and the other resin insulating block having a plurality of holes through which the plurality of columns are inserted. Part, when closed, is provided curved along the back surface of the movable electrode plate so as to push the movable electrode plate toward the fixed electrode plate, and the tip of the movable electrode plate is placed on the back surface side. Folding And a fixed end portion having a plurality of holes of the thermally responsive element plate, the movable end portion of which is locked with a slight allowance by the claw portion formed in the above manner, and the support of the one insulating block is provided. The movable electrode plate and the thermally responsive element plate are respectively inserted into the holes of the other insulating block through the respective holes, and the ends of the pillars protruding from the holes are caulked to fix the pair of insulating blocks with the pair of insulating blocks. A thermal protector, wherein a mount body integrated with the other end of the electrode plate, the fixed end of the movable electrode plate, and the fixed end of the thermoresponsive element plate is provided in the container. .
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2203286A JP3052349B2 (en) | 1990-07-31 | 1990-07-31 | Thermal protector |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2203286A JP3052349B2 (en) | 1990-07-31 | 1990-07-31 | Thermal protector |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH0495324A JPH0495324A (en) | 1992-03-27 |
JP3052349B2 true JP3052349B2 (en) | 2000-06-12 |
Family
ID=16471533
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2203286A Expired - Fee Related JP3052349B2 (en) | 1990-07-31 | 1990-07-31 | Thermal protector |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP3052349B2 (en) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH07282701A (en) * | 1994-04-05 | 1995-10-27 | Texas Instr Japan Ltd | Self-holding protector |
JPH1116465A (en) * | 1997-06-25 | 1999-01-22 | Matsushita Electric Ind Co Ltd | Thermal protector |
WO2024009461A1 (en) * | 2022-07-07 | 2024-01-11 | 株式会社生方製作所 | Thermal protector |
-
1990
- 1990-07-31 JP JP2203286A patent/JP3052349B2/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
JPH0495324A (en) | 1992-03-27 |
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