JPS5963629A - Thermostat - Google Patents

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

【発明の詳細な説明】 本興明は機構を簡素化し、□且つ圧力応動部材に対す゛
る負荷の設定が有、効適切に為し得られるよう′←した
サーモ子タソト、゛にｉするものである。[Detailed Description of the Invention] The present invention is directed to a thermostat which simplifies the mechanism and allows effective and appropriate setting of the load on the pressure responsive member. It is.

、漣来冷蔵庫、ルームエアコン等に用いられるサーモス
タットは、例え□ば実公昭５０−第９５６’９号公報に
示されセいるよう゛に、ｉ温部検□知温度をＲ〜 機械的動きに変換するベローズなどからなる熱応動体に
、側面がＬ字状７Ｌ字交点を支点とする作動板の一辺を
当接さｉ、作動板の他辺にはコイル、状ばセの一端を係
止し、ばねの他端は調整板に調整ねじて螺出され、ばね
荷重を調整するとともに、ｇｌｌｉｌ整板はカム手段に
よって、一端を支点として傾動してばね荷重を調整し、
調整したばね荷重、！：館応動体が対抗し、熱応動体の
動きに連動する作動板の回動により作動枠を介してスイ
ッチ接点を開閉するように構成しているものであるが、
部品点数が多く機構が複雑である。, thermostats used in refrigerators, room air conditioners, etc., for example, as shown in Publication No. 956'9 of 1981, detect temperature in hot part R ~ mechanical movement. One side of the actuating plate with an L-shaped side surface and the L-shaped intersection as a fulcrum is brought into contact with the heat-responsive body made of a bellows or the like to be converted, and one end of the coil and shape plate is locked on the other side of the actuating plate. The other end of the spring is screwed onto the adjusting plate to adjust the spring load, and the gllil adjusting plate is tilted using one end as a fulcrum by a cam means to adjust the spring load.
Adjusted spring load,! :The structure is such that the switch contacts are opened and closed via the actuation frame by the rotation of the actuation plate linked to the movement of the heat-responsive body, which is opposed by the thermal response body.
There are many parts and the mechanism is complicated.

そこで、これを大中に簡素化したものとして実開昭５７
−４３５３６号公報に示されるものがあるが、これにあ
っては作動板を省いて板ばね部材によりマイクロスイン
チを直接駆動しているものであってスイッチの配置等に
ついて設計上の隘路があり、またベローズに対抗する板
ばねの荷重を有効、適切に設定することが困難である。Therefore, as a simplified version of this, it was
There is a device shown in Japanese Patent No. 43536, but in this case, the actuating plate is omitted and the microsinch is directly driven by a leaf spring member, and there are design obstacles in terms of the arrangement of the switch, etc. Furthermore, it is difficult to effectively and appropriately set the load of the leaf spring opposing the bellows.

本発明は上記した点に着目して為されたものであり、熱
応動体とスイッチを相対向して設けると共に両者間に軸
方向に移動してベローズの動作をスイッチの開閉動作に
伝達する作動杆を設けることにより機構を簡素化しつつ
ベローズの動作を正確にスイッチに伝達し、且つＵ字状
板ばねを用いてベローズに対抗する荷重を設定すると共
に該０字板ばねの弧状折曲部の形状変化により該荷重を
有効、適切に変化させるようにしたものである。The present invention has been made by focusing on the above-mentioned points, and provides an operation in which a thermally responsive body and a switch are provided facing each other and are moved in the axial direction between the two to transmit the operation of the bellows to the opening/closing operation of the switch. By providing a rod, the mechanism is simplified and the movement of the bellows is accurately transmitted to the switch, and a U-shaped leaf spring is used to set a load opposing the bellows, and the arc-shaped bent portion of the O-shaped leaf spring is The load is effectively and appropriately changed by changing the shape.

以下本発明の一実施例について図面と共に説明する。An embodiment of the present invention will be described below with reference to the drawings.

図面において、Ａは合成樹脂製の筐体であり、前筺体Ａ
１と後筺体Ａ２とより成り、後記する手段により結合さ
れ、前壁１、後壁２、四個の周壁３．３’、３″を構成
する。In the drawing, A is a synthetic resin casing, and the front casing A
1 and a rear casing A2, which are connected by means described later to constitute a front wall 1, a rear wall 2, and four peripheral walls 3.3', 3''.

一方の周壁３には熱応動体としてのベローズ４が設りら
れ、その固定面４ａは毛細管５の一端を溶接した底板６
に毛細管先端がベローズ４内に開放状態でハンダ等で溶
接されている。図示されていないが毛細管の他端部には
感温部が設けられる。A bellows 4 as a thermally responsive body is provided on one peripheral wall 3, and its fixing surface 4a has a bottom plate 6 to which one end of a capillary tube 5 is welded.
The tip of the capillary tube is welded into the bellows 4 in an open state using solder or the like. Although not shown, a temperature sensing portion is provided at the other end of the capillary.

周壁３に対向する周壁３′にはスイッチＳが設けられる
。即ぢ、周壁３′には内外部にわたって延長する固定接
点端子７と可動接点端子８が固着され、固定接点端子７
には固定接点９が設けられ、可動接点端子８には可動接
点１０を有する可動接点板１１がカシメ等で電気的に導
通状態において固定される。可動接点板１１の内部には
公知の如くに切欠きによりスナップ作動板１１ａが設け
られ、可動接点板１１との間に急速反転バネ１２が設け
られる。周壁３′には更に接点間隔を調整する為のディ
ファレンシャル調整ネジ１３が設けられる。A switch S is provided on the peripheral wall 3' facing the peripheral wall 3. That is, fixed contact terminals 7 and movable contact terminals 8 extending from inside to outside are fixed to the peripheral wall 3'.
A fixed contact 9 is provided at the movable contact terminal 8, and a movable contact plate 11 having a movable contact 10 is fixed to the movable contact terminal 8 in an electrically conductive state by caulking or the like. A snap actuating plate 11a is provided inside the movable contact plate 11 by a notch as is known in the art, and a quick reversal spring 12 is provided between the movable contact plate 11 and the snap actuating plate 11a. The peripheral wall 3' is further provided with a differential adjustment screw 13 for adjusting the contact spacing.

ベローズ４の可動面４ｂとスイッチＳの可動接点板１１
乃至スナップ作動板ｔｉａは対向状態にあり、両者間に
はベローズ４の動きをスイッチＳに伝達するための作動
杆１４が配設される。即ぢ、作動杆１４の一端の頭部１
４ａがベローズ４の可動面に当接し、他端の係止部１４
ｂがスナップ作動板１１ａに結合され、後記する板ばね
の作用と相伴ってベローズ４の動作をスイッチＳに伝達
してこれを開、閉させる。この際において、作動杆１４
は隔壁１５の溝１５ａにより支持、案内される。Movable surface 4b of bellows 4 and movable contact plate 11 of switch S
The snap actuating plates tia are opposed to each other, and an actuating rod 14 for transmitting the movement of the bellows 4 to the switch S is disposed between them. Immediately, the head 1 at one end of the operating rod 14
4a comes into contact with the movable surface of the bellows 4, and the locking part 14 at the other end
b is coupled to the snap actuating plate 11a, and together with the action of a leaf spring to be described later, the action of the bellows 4 is transmitted to the switch S to open and close it. At this time, the operating rod 14
is supported and guided by the groove 15a of the partition wall 15.

ベローズ４とスイッチＳ間には該ベローズ４の動作に対
抗して被制御部の制御温度を設定するための板ばね１６
が設けられる。板ばね１６は一定１１を有する長方形の
薄いばね板を弧状の折曲部１６ａを介して折り返して長
辺作動部１６ｂと短辺被設定部１６Ｃが変形Ｕ字状に一
体に形成されたもので、長辺作動部１６ｂの中間部に挿
通孔１６ｄが形成され、設置状態において長辺作動部１
６ｂの端部１６ｅが前記隔壁１５からベローズ４を支持
する周壁３方向に突設された支点１５ｂに当接し、該保
進孔１６ｄ内に作動杆１４を遊嵌させつつ該挿通孔１６
ｄの周縁が作動杆の頭部１４ａに当接することにより該
作動杆１４を介してベローズ４に対抗する。A leaf spring 16 is provided between the bellows 4 and the switch S to counteract the operation of the bellows 4 and set the control temperature of the controlled part.
is provided. The leaf spring 16 is made by folding a rectangular thin spring plate having a constant 11 through an arc-shaped bending part 16a to integrally form a long side actuating part 16b and a short side set part 16C in a deformed U-shape. , an insertion hole 16d is formed in the middle part of the long side actuating part 16b, and the long side actuating part 1 is formed in the installed state.
The end portion 16e of the retaining hole 16b comes into contact with a fulcrum 15b protruding from the partition wall 15 in the direction of the peripheral wall 3 that supports the bellows 4, and while the operating rod 14 is loosely fitted into the retaining hole 16d, the insertion hole 16
The peripheral edge of d comes into contact with the head 14a of the actuating rod, thereby opposing the bellows 4 via the actuating rod 14.

板ばね１６の短辺被設定部１６Ｃには摺動調整板１７の
一部を折曲して形成した駆動片１７ａが当接し、突部１
７ａ１が孔１６Ｃ１に係入する。A drive piece 17a formed by bending a part of the sliding adjustment plate 17 comes into contact with the short side set portion 16C of the leaf spring 16, and the protrusion 1
7a1 engages in the hole 16C1.

摺動調整板１７は上筒体Ａ＋における前壁１の凹部１ａ
内において前記作動杆１４の軸方向に向け一ζ移動自在
に設けられ、内部には移動方向に向けた長孔１７ｂが設
けられてその内部にカム軸１８の軸受部１ｂを位置させ
ている。前記駆動片１７ａは図示されていないが前壁１
に設けられた孔を貫通している。上記により摺動調整板
１７は板ばね１６の延［じ方向と交叉する方向の側力に
位置ず・アノ、二とになる。The sliding adjustment plate 17 is located in the recess 1a of the front wall 1 of the upper cylinder A+.
The camshaft 18 is provided so as to be movable in the axial direction of the operating rod 14, and is provided with a long hole 17b facing in the direction of movement, in which the bearing portion 1b of the camshaft 18 is positioned. Although the driving piece 17a is not shown, the front wall 1
It passes through a hole provided in the. As a result of the above, the sliding adjustment plate 17 is not placed under the side force in the direction perpendicular to the direction in which the plate spring 16 extends.

（ｒ３リバＩｉ、Ｉ整板１７の［こ孔１７Ｉ３の一端に
は保合突起１７（、か起立され、カム軸■８に設りられ
たカム板１９が係合する。(The retaining protrusion 17 is raised at one end of the hole 17I3 of the r3 rib Ii, I adjustment plate 17, and the cam plate 19 provided on the cam shaft 8 is engaged.

後筐体Δ２Ｇ、二おいてへロース測周壁３には汲はねの
４’ｒ：ｊ市調整ねし２０が進退可能に螺着され、その
内Ｉ″Ｉ；、：ｌが坂ばね１６におりる長辺作動部１６
ｂの１’＋ｆｌ、１部１　（ｉ　ｃにおいて支点１５ｂ
に列する当接部よりも更に外力に結合される。In addition to the rear casing Δ2G and 2, a spring spring 4'r:j city adjustment screw 20 is screwed onto the Heros circumferential wall 3 so that it can move forward and backward. Long side operating part 16
b's 1'+fl, 1 part 1 (i c at fulcrum 15b
It is further coupled to the external force than the abutting portions arranged in the row.

２Ｉは金属製の蓋板であっ（，１ｉｉｉ壁１」−を被覆
すイ、もので、多）す、該蓋板２１Ｇ、二は前記へリー
ス４とスイッチＳの取（＝Ｊ周壁３，３′と交叉する方
向の相対向する周壁３″、３″上に折曲され）こ連結ｔ
１．ｊ　２１　ａ、２１ａが設りられ、該連結板２１．
Ｉ、２１　ａの端部には後筺体Ａ２におい°（該周面壁
３″３″の外面に形成された連結用突起２２．２２を内
部に位置させるカシメ連結片２１ｂ、２１ｂか連設され
、組立時において該カシメ連結片２１ｂ、２　’ｌ　ｂ
の端部を該連結用突起２２．２２に対してカシメるごと
により餉１体Δに苅する蓋Ｆｊ、２１の固着と同時に前
１多筺体Δ＋、Ａ、、の結合を確保する。2I is a metal cover plate (, 1iii, a material that covers the wall 1), the cover plate 21G, 2 is a metal cover plate (= J peripheral wall 3, This connection t is bent on opposing peripheral walls 3'' and 3'' in the direction intersecting with 3'.
1. j 21a, 21a are provided, and the connecting plate 21.
At the end of I, 21a, caulking connecting pieces 21b, 21b, which position the connecting protrusion 22.22 formed on the outer surface of the peripheral wall 3''3'' inside the rear housing A2, are connected. During assembly, the caulking connecting pieces 21b, 2'l b
By crimping the ends of the lids Fj and 21 onto the connecting protrusions 22 and 22, the lids Fj and 21 are secured to the hook Δ, and at the same time, the front multiple housings Δ+, A, are secured together.

置板２■の中心部にはカム軸１８の挿通孔２１Ｃか形成
され、またその両側部には外力に張り出した取イτ］板
部２１（ｊが連設される。ｆＸｅって、カム＋１ｉＩｌ
＋　１８は銑（反２１の化２１（、と１）；１壁１の軸
受部ｌｂにより安定姿勢で保持される。An insertion hole 21C for the camshaft 18 is formed in the center of the placing plate 2, and on both sides thereof, a take-out plate 21 (j) protruding from external force is connected. +1iIl
+ 18 is held in a stable position by the bearing part lb of the 1 wall 1.

上記構成においこ、感温部の温度に相当するガス圧力が
しイ１１１管５を介し゛（ヘロース４内に伝達され、該
・＼ロース内圧力と扱ばね１６の７１１１重か作動、（
「Ｉ４を介してり１１＋’ｊ　シ、−、ロース内圧力と
板ばねの１：：ｉ市の差によって該作動杆１４は輔方向
に移動し、該作動杆１４のｉ’ＪｉきはスイッチＳに伝
達され、スナノゾ作動扱１１　ａを駆動することにより
反転ハネ１２乃至可ＩＩＩＩＪ接点坂１１を介して接点
９，１０を開、閉する。In the above structure, the gas pressure corresponding to the temperature of the temperature sensing part is transmitted through the tube 5 (111) into the herose 4, and the pressure inside the loin is handled by the force of the spring 16 (7111).
Through I4, the operating rod 14 moves in the direction of the foot due to the difference between the loin internal pressure and the leaf spring 1::i, and the i'Ji position of the operating rod 14 is activated by the switch. The contact points 9 and 10 are opened and closed via the reversing spring 12 to the contact slope 11 by driving the nanozo actuator 11a.

作動温度の設定は、カム軸１８のカム板１９の位置を一
定位置に定めた状態で、調整ねし２ｏをｉｉ！：退さ−
Ｕ、・、Ｉコーズ４に対−！ｌ−るばね＠重を調整して
調整可能な温度山内の適正なメン作動温度を設定し７、
オフ点作動温度はディファレンシャル調整ねし１３を進
退させて設定する。To set the operating temperature, set the cam plate 19 of the camshaft 18 at a constant position, and use the adjustment screw 2o ii! : Retire.
U,... vs. I Cause 4-! 7. Adjust the spring @ weight to set the appropriate temperature for the adjustable temperature mountain.
The off-point operating temperature is set by moving the differential adjustment screw 13 back and forth.

、二の状態で冷蔵庫、ルームコーア」ン等に組め込まれ
る。組込まれた後の作動温度の設定は、カム・１・１１
目８を回動してカム板１９により摺ｆ！ｌＪ關整板１７
を移動さ−Ｕ、駆動板１７　ａにより扱ばね１６の短辺
被設定部１６Ｃを制御して弧状折曲部１６ａσ月Ｊｉ曲
度合を゛変化させて行なう。In the second state, it is incorporated into refrigerators, room cores, etc. After installation, the operating temperature can be set using cams 1 and 11.
Turn the eye 8 and use the cam plate 19 to slide f! lJ connection board 17
The movement is performed by controlling the short side set portion 16C of the handling spring 16 by the driving plate 17a to change the degree of bending of the arcuate bent portion 16a.

４発明は上記した如くに、ヘロースとスイッチを相対向
させると共にヘロースの動作を輔方向に移１１ｉＪＪす
る作すリノ杆を介してスイッチに伝達するので、・、１
−１−スとスイッチを離隔した設釧としつつ機幅を簡素
化Ｊるごとかできると共に動作の伝達か正「（１に為し
ｉ■られ、Ｌ］字状板ばねを用いてその弧仄Ｄｉ曲部の
形状を変化させるので・・、し】−ズにグｊ抗する荷■
Ｘを右すＪ、適切番こ設定することができる。4. As described above, the invention transmits the motion to the switch via the lino rod, which makes the herose and the switch face each other and moves the motion of the herose toward the support.
-1- Simplify the width of the machine while separating the base and the switch.In addition to making it possible to transmit the movement, the arc is Because it changes the shape of the curved part...
You can set the appropriate number by turning the X to the right.

まノこ本発明においては、（ｒ１動調整板を板ばねの延
に方向の１則力に設番）−（カムにより調整するので使
用時におりるδＩＩ、！整側であるカム軸力向からの筐
体の奥行きを人中に少なくすることかでき、平型なコン
バク１−形状とす′ることにより冷蔵庫等の機器に幻す
る絹伺りを容易にする。Manoko In the present invention, (the r1 dynamic adjustment plate is set to the one-law force in the direction of the extension of the leaf spring) - (adjusted by the cam, so δII, which decreases during use, is the cam shaft force direction that is the adjustment side) The depth of the casing can be reduced to the size of the human body, and by making it into a flat, compact 1-shape, it is easy to see through the casing, which is the case with appliances such as refrigerators.

【図面の簡単な説明】[Brief explanation of drawings]

第１図は本発明にかかるサーモスタットの４１視し１、
第２し１は同士の左側面図、第３し１は右側面図、轄４
図は前筺体を取りり（ルた内部磯構図、第５図は第２図
１のｖ−’ｖ線断面図１、第６図は要部の分１すを斜視
図、第７図は最ばねの斜視図である。 八・・・ｔ＋本、ｓ・・・スイッチ１．４・・・ヘロー
ス、１４・・・作動杆、１６・・・Ｕ字状板ばね、１７
・・・摺動調整板。 ＋１！ｒ、：’Ｉ出願人　　　　　　株式会社鷲宮製作
所第−１図 第６図FIG. 1 shows a thermostat according to the present invention.
The second part 1 is a left side view of the two, the third part 1 is a right side view, and the fourth part is a right side view.
The figure shows the internal structure of the front casing, Figure 5 is a sectional view taken along the line v-'v of Figure 2, Figure 6 is a perspective view of the main part, and Figure 7 is a perspective view of the main parts. It is a perspective view of the most spring. 8...T+ book, s...Switch 1.4...Herose, 14...Operating rod, 16...U-shaped leaf spring, 17
...Sliding adjustment plate. +1! r, :'I Applicant Washimiya Seisakusho Co., Ltd. Figure-1 Figure 6

Claims (2)

【特許請求の範囲】[Claims] （１）、筐体にベローズとスイ、ンヂを相対向して設け
、ベローズとスイッチ間に作動杆、を設けて該作動杆の
軸方向移動によりベローズの動、作をスイッチに伝達し
、ベロー不とス、インチ間において該作動杆と交叉する
方向にＵ字状の板ばねを設け、板ばねの一辺を該作動杆
に係合させてベローズに対抗する荷重を与え１．板ばね
Φ他辺に摺、動態整板、における駆動片を当接さ、せ、
カム板により摺、動態整板を移動させること、に、より
弧状折曲部、　の形状を変化させて前記対、抗荷重を設
定することを特徴とするサーモスタット。(1) A bellows and a switch are provided in the housing to face each other, and an operating rod is provided between the bellows and the switch, and the movement of the bellows is transmitted to the switch by axial movement of the operating rod, A U-shaped leaf spring is provided in a direction intersecting the operating rod between the bellows and the inch, and one side of the leaf spring is engaged with the operating rod to apply a load against the bellows.1. Bring the driving piece of the sliding or dynamic adjustment plate into contact with the other side of the leaf spring Φ,
A thermostat characterized in that the resistance load is set by moving a sliding or dynamic adjustment plate by a cam plate, and changing the shape of the arcuate bent portion. （２）　　ｉ　体、ニベロ−スとスイッチを相対向←で
設け、ベローズとスイッチ間に作呻杆を設けて該作動杆
の軸方向移動にょリベロ、、−ズの動作をスイッチに伝
達し、ベローズとスイッチ間において該作動杆と交叉す
る方向にＵ字状の板ばねを設け、板ばねの一辺を該作動
杆に係合さ竺てベローズに対抗する荷重を与え、板ばね
の延長方向と交叉する方向の側方においてカム板の操作
により作動軸方向に移動する摺動調整板を設けてその駆
動片をＵ字状板ばねの他辺ｉ当接させ、カム板の操作時
に弧状折曲部の形状を変化させて前２、記と・１抗荷重
を設定す、ることを特徴とするサーモスタンド。(2) The i body, the bellows, and the switch are provided facing each other, and an actuating rod is provided between the bellows and the switch, and the movement of the actuating rod's axial movement, the liberos, and - is transmitted to the switch; A U-shaped leaf spring is provided between the bellows and the switch in a direction that intersects the operating rod, and one side of the leaf spring is engaged with the operating rod to apply an opposing load to the bellows. A sliding adjustment plate is provided on the side in the intersecting direction to move in the direction of the operating axis when the cam plate is operated, and its driving piece is brought into contact with the other side i of the U-shaped leaf spring, and when the cam plate is operated, the sliding adjustment plate is bent into an arc shape. 1. A thermostand characterized in that the resistance load shown in the above 2. and 1. is set by changing the shape of the part.