JPH0220746Y2 - - Google Patents
Info
- Publication number
- JPH0220746Y2 JPH0220746Y2 JP17410685U JP17410685U JPH0220746Y2 JP H0220746 Y2 JPH0220746 Y2 JP H0220746Y2 JP 17410685 U JP17410685 U JP 17410685U JP 17410685 U JP17410685 U JP 17410685U JP H0220746 Y2 JPH0220746 Y2 JP H0220746Y2
- Authority
- JP
- Japan
- Prior art keywords
- link
- bimetal
- handle
- case
- groove
- 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
Links
- 239000004020 conductor Substances 0.000 claims description 8
- 230000001012 protector Effects 0.000 claims description 7
- 239000000725 suspension Substances 0.000 claims description 5
- 238000005452 bending Methods 0.000 claims description 2
- 239000012212 insulator Substances 0.000 claims description 2
- 238000009434 installation Methods 0.000 description 3
- 230000000903 blocking effect Effects 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
Landscapes
- Breakers (AREA)
- Thermally Actuated Switches (AREA)
Description
【考案の詳細な説明】
〔考案の目的〕
本考案は小型電気機器の電源開閉と過電流保護
を目的とした超小型サーキツトプロテクタに係
る。従来小型電気機器の電源開閉と過電流保護に
は大別して次の方法が多用されている。[Detailed Description of the Invention] [Purpose of the Invention] The present invention relates to an ultra-small circuit protector intended for power switching and overcurrent protection of small electrical equipment. Conventionally, the following methods have been widely used for power switching and overcurrent protection of small electrical equipment.
(1)電源開閉用スイツチとヒユーズによるもの、
(2)電源開閉用スイツチと熱線あるいは、バイメタ
ルを利用したオーバーカレントプロテクタによる
もの、(3)電源スイツチと過電流保護機能を兼用し
たサーキツトプロテクタによるもの。 (1) Power on/off switch and fuse,
(2) A power on/off switch and an overcurrent protector using a hot wire or bimetal; (3) A circuit protector that functions as a power switch and overcurrent protection.
前記(1)による場合は、一番安価な方法であるが
ヒユーズ溶断に備え電流容量の合つたヒユーズの
常備が必要で、ヒユーズ溶断時には復旧のための
取替作業など保守面がきわめて悪い。しかもスイ
ツチとヒユーズは別々に取付けられるため、スペ
ースを広く要する。また取付作業も省力化の面か
らみて不利である。(2)による場合は、(1)に比べ若
干高価となるが、取替ヒユーズの常備は不要とな
り過電流保護後の復旧は釦操作のみであり、保守
面では良好となる。しかし取付スペース、取付作
業の省力化の面では(1)と同等である。(3)による場
合は一番高価であるがその他の面では(1)および(2)
に勝る、しかし乍ら現行品は小型になつたといえ
ども最近の軽薄短少時代からみればまだ大きい。
など夫々一長一短がある。 In the case of (1) above, it is the cheapest method, but it is necessary to always have a fuse with the appropriate current capacity on hand in case the fuse blows out, and when the fuse blows out, maintenance is extremely poor as it requires replacement work to restore the fuse. Moreover, since the switch and fuse are installed separately, a large amount of space is required. Moreover, the installation work is also disadvantageous from the viewpoint of labor saving. In the case of (2), it is slightly more expensive than in (1), but there is no need to always have a replacement fuse, and recovery after overcurrent protection is only a button operation, so it is better in terms of maintenance. However, it is equivalent to (1) in terms of installation space and labor-saving installation work. Case (3) is the most expensive, but in other respects (1) and (2)
However, even though the current products have become smaller, they are still large compared to the recent era of light, thin, and short.
There are advantages and disadvantages to each.
以上の点に鑑み本考案はなされたもので、即ち
形状は管ヒユーズホルダー類似で超小型にして、
手動開閉と過電流保護機能がモールドケース内に
一体化され、しかも完全トリツプフリー機構であ
りながら、構造簡単にして、且つ安価なサーキツ
トプロテクタを提供するものである。 The present invention was developed in view of the above points, that is, the shape is similar to a tube fuse holder, but it is extremely small.
To provide a circuit protector which has a simple structure and is inexpensive, in which manual opening/closing and overcurrent protection functions are integrated in a molded case and is a completely trip-free mechanism.
左右対称に分割可能なモールドケース内に、手
動開閉に必要なハンドル、ハンドル復帰バネ、リ
ンク、リンクパイプと、主機構を成す接続導体、
可動接点およびリンク承を装着したバイメタル、
遮断用板バネと、固定接点が固着された負荷端子
板との３ブロツクに分けて組立てられた部品群を
夫々挿入、嵌合することによつて成る。
Inside the molded case, which can be divided symmetrically, are the handle necessary for manual opening and closing, the handle return spring, the link, the link pipe, and the connecting conductor that forms the main mechanism.
Bimetal with movable contacts and link bearings,
This is accomplished by inserting and fitting together parts that are assembled into three blocks: a break-off leaf spring and a load terminal plate to which a fixed contact is fixed.
以下図面により本考案の一実施例について説明
する。 An embodiment of the present invention will be described below with reference to the drawings.
第１図はケースの片面を取外した断面図で切の
状態を示す。１はケースで絶縁物から成つており
左右対称に分割され、一端に端子部を延出するた
めの溝を有し、他端にハンドルを軸止し操作部を
露出するための穴を有する中空状となつており各
部品を挿入嵌合後組合わせられる。ハンドル軸１
３を持つハンドル２はケースに回転自在に軸止さ
れケース外側に操作部、内側にリンク３との接続
部を有する。リンク３は弾性線材にて略コ字状に
製作され、一端はハンドル復帰バネ４のつる巻状
中心部を貫通し、ハンドル２の接続部に回動自由
に挿入される。他端はリンク承８との係合部を成
す。ハンドル復帰バネ４はハンドル２とリンク３
を折曲げる方向に付勢する。 FIG. 1 is a sectional view with one side of the case removed, showing the cut state. Reference numeral 1 denotes a case made of an insulating material, which is divided symmetrically, and has a groove at one end for extending the terminal part, and a hollow hole at the other end for fixing the handle and exposing the operating part. It has a shape that allows it to be assembled after inserting and fitting each part. Handle shaft 1
A handle 2 having a handle 2 is rotatably fixed to the case, and has an operation part on the outside of the case and a connection part with the link 3 on the inside. The link 3 is made of an elastic wire and has a substantially U-shape, and one end passes through the helical center of the handle return spring 4 and is inserted into the connection part of the handle 2 so as to be freely rotatable. The other end forms an engaging portion with the link support 8. Handle return spring 4 connects handle 2 and link 3
bias in the direction of bending.
円筒状のリンクパイプ５はリンク３の他端に回
転自由に挿入されリンク承８との係合を成し引外
しトルクを軽減させる目的を持つ。バイメタル７
には一端に可動接点１０を固着し、他端に切溝、
３１，３２を設け中央部を長方形に切抜く、一端
に溝２９を有し、他端にバイメタル７に係合する
Ｖ字状形成部３０を有し、略中央部にリンク３が
係合する係合部２６、該係合部２６の反対側には
遮断用板バネ９の一端が懸架できる如く突起部分
１６を設けた絶縁物より成るリンク承８を前記バ
イメタル７の長方形切抜き部分に装着する。 The cylindrical link pipe 5 is rotatably inserted into the other end of the link 3 and engages with the link support 8, with the purpose of reducing the tripping torque. bimetal 7
The movable contact 10 is fixed to one end, and the other end has a groove,
31 and 32 are provided, and the central part is cut out into a rectangular shape. One end has a groove 29, the other end has a V-shaped forming part 30 that engages with the bimetal 7, and the link 3 engages with the approximately central part. A link support 8 made of an insulator is attached to the rectangular cut-out portion of the bimetal 7, which has an engaging portion 26 and a protruding portion 16 on the opposite side of the engaging portion 26 so that one end of the blocking leaf spring 9 can be suspended. .
Ｌ字状に形成された接続導体６には一端にバイ
メタル７が係止する切欠部３３を有し、該切欠部
の外側にバイメタル懸架用の溝１４、内側に遮断
用板バネ懸架用の溝１５を有し他端をケース１よ
り延出し端子部１７を設ける。 The L-shaped connecting conductor 6 has a notch 33 at one end into which the bimetal 7 is engaged, a groove 14 for suspending the bimetal on the outside of the notch, and a groove for suspending the cut-off leaf spring on the inside of the notch. 15, the other end extends from the case 1, and a terminal portion 17 is provided.
遮断用板バネ９の一端は凸状に、他端を凹状に
形成させる。 One end of the blocking leaf spring 9 is formed in a convex shape, and the other end is formed in a concave shape.
リンク承８が装着されたバイメタル７の切溝３
１，３２を接続導体６の切欠部３３に差込み、溝
１４に懸架する、その後遮断用板バネ９の凹状部
分をリンク承８の突起部分１６に、また凸状部分
を接続導体６の溝１５に夫々懸架する。 Cut groove 3 of bimetal 7 with link support 8 installed
1 and 32 into the notch 33 of the connecting conductor 6 and suspend it in the groove 14. Then, the concave part of the cutoff leaf spring 9 is inserted into the protruding part 16 of the link support 8, and the convex part is inserted into the groove 15 of the connecting conductor 6. be suspended respectively.
負荷端子板１２には一端に固定接点１１を固着
し他端をケース１より延出し端子部１８とする。
２０，２２，２５はケース１の嵌合用突起、２
１，２３，２４はケース１の嵌合用穴を示す、１
９はケース１の突起部でバイメタル７の可動範囲
を一定にするためのストツパーである、２７はバ
イメタル７の低膨張側、２８は高膨張側を示す、
３４，３５，３６，３７はケース１との嵌合用切
欠部を示す。 A fixed contact 11 is fixed to one end of the load terminal plate 12, and the other end extends from the case 1 to form a terminal portion 18.
20, 22, 25 are fitting protrusions of case 1;
1, 23, 24 indicate the fitting holes of the case 1, 1
9 is a stopper on the protrusion of the case 1 to keep the movable range of the bimetal 7 constant; 27 indicates the low expansion side of the bimetal 7; 28 indicates the high expansion side;
34, 35, 36, and 37 indicate notches for fitting with the case 1.
以上のような構成により組立てられた本考案サ
ーキツトプロテクターは、ハンドル軸１３を中心
にハンドル復帰バネ４に抗してハンドル２を時計
方向に回転させると、リンク３との接合部も時計
方向に回動する。この時リンク３の他端に回転自
由に挿入されたリンクパイプ５はリンク承８の係
合部２６と係合しながら、バイメタル７とリンク
承８は懸架溝１４を基点に、遮断用板バネ９は圧
縮され湾曲が大となりながら懸架溝１５を基点に
時計方向に夫々回動し、バイメタル７に固着され
た可動接点１０は固定接点１１に接触する。な
お、ハンドル２とリンク３との接続部はハンドル
軸１３とリンクパイプ５との死点を越え第２図に
示す如く入の状態を維持する。 In the circuit protector of the present invention assembled with the above configuration, when the handle 2 is rotated clockwise about the handle shaft 13 against the handle return spring 4, the joint with the link 3 also rotates clockwise. Rotate. At this time, while the link pipe 5 inserted freely into the other end of the link 3 engages with the engaging portion 26 of the link socket 8, the bimetal 7 and the link socket 8 move toward the suspension groove 14, and the cutoff plate spring The movable contacts 10 fixed to the bimetal 7 come into contact with the fixed contacts 11, while the contacts 9 are compressed and curved to a greater degree while rotating clockwise about the suspension grooves 15 as a base point. The connecting portion between the handle 2 and the link 3 remains closed as shown in FIG. 2 beyond the dead center of the handle shaft 13 and the link pipe 5.
ここで通常の負荷電流以内の電流が流れた場
合、バイメタル７は懸架溝１４と可動接点１０を
支点にして高膨張側２８の方向に若干湾曲するが
リンクパイプ５とリンク承８との係合は維持さ
れ、自動遮断には至らない。一方過大電流が流れ
た場合はバイメタル７の湾曲は過大となり、ハン
ドル２が外力により停止されていてもリンクパイ
プ５とリンク承８との係合は外され遮断用板バネ
９により可動接点１０はバイメタル７、リンク承
８とともに反時計方向に回動し自動遮断するが、
ストツパー１９により所定位置にて停止するこの
状態を第３図に示す。 If a current within the normal load current flows here, the bimetal 7 will bend slightly in the direction of the high expansion side 28 using the suspension groove 14 and the movable contact 10 as fulcrums, but the engagement between the link pipe 5 and the link support 8 will is maintained and does not result in automatic shutdown. On the other hand, if an excessive current flows, the bimetal 7 will bend excessively, and even if the handle 2 is stopped by an external force, the link pipe 5 and the link support 8 will be disengaged and the movable contact 10 will be closed by the cutoff leaf spring 9. It rotates counterclockwise together with bimetal 7 and link support 8 and shuts off automatically.
This state in which the stopper 19 stops at a predetermined position is shown in FIG.
しかる後にハンドル２を停止している外力が無
くなればハンドル復帰バネ４によりハンドル２は
反時計方向に回転して切の位置まで復帰するとと
もに、リンクパイプ５はリンク承８の係合部２６
に係合し、次の入の操作ができる如く即ち第１図
に示すようにリセツトされる。 After that, when the external force stopping the handle 2 is removed, the handle return spring 4 causes the handle 2 to rotate counterclockwise and return to the off position, and the link pipe 5 is moved to the engagement portion 26 of the link support 8.
1, and is reset so that the next on operation can be performed, that is, as shown in FIG.
なお手動にて入状態から切にする場合はハンド
ル２を反時計方向に回転させることによりリンク
パイプ５とリンク承８との係合は維持されたま
ま、遮断用板バネ９により可動接点１０はバイメ
タル７、リンク承８とともに反時計方向に回動
し、固定接点１１と開離し第１図の状態になる。 In addition, when manually turning off the on state, by rotating the handle 2 counterclockwise, the movable contact 10 is turned off by the cutoff leaf spring 9 while the engagement between the link pipe 5 and the link support 8 is maintained. It rotates counterclockwise together with the bimetal 7 and the link support 8, and separates from the fixed contact 11, resulting in the state shown in FIG.
以上述べたように本考案によればリンク、リン
ク承、バイメタル、遮断用板バネなどの主要部品
を略平行に配置したので外形寸法の超小型化が可
能となつた。
As described above, according to the present invention, the main parts such as the link, the link bearing, the bimetal, and the cut-off leaf spring are arranged approximately in parallel, making it possible to reduce the external dimensions to an ultra-small size.
また部品点数も少なく、ほとんどが、挿入、嵌
合により組立てられるなど省力化されているので
安価に提供できる。 In addition, the number of parts is small, and most of them can be assembled by inserting and fitting, which saves labor, so it can be provided at a low cost.
しかもバイメタルは一端が懸架溝、他端が可動
接点に支えられ、略中央部を引外しトルクとして
利用しているため、トルクの有効活用が可能とな
り直熱式といえども小容量まで製作可能である。
なおバイメタルトルクが充分な高容量品に於ては
リンクパイプを省略することも可能である。 In addition, the bimetal is supported by a suspension groove at one end and a movable contact at the other end, and the roughly central part is used as the tripping torque, making it possible to use the torque effectively and making it possible to manufacture small-capacity products even with direct heating. be.
Note that for high-capacity products with sufficient bimetal torque, the link pipe can be omitted.
第１図は「切」状態断面図、第２図は「入」状
態断面図、第３図は「自動遮断」状態断面図、第
４図は主要部品の分解実体図。
１……ケース、２……ハンドル、３……リン
ク、４……ハンドル復帰バネ、５……リンクパイ
プ、６……接続導体、７……バイメタル、８……
リンク承、９……遮断用板バネ、１０……可動接
点、１１……固定接点、１２……負荷端子板。
FIG. 1 is a sectional view of the "off" state, FIG. 2 is a sectional view of the "on" state, FIG. 3 is a sectional view of the "automatic shutoff" state, and FIG. 4 is an exploded view of the main parts. 1... Case, 2... Handle, 3... Link, 4... Handle return spring, 5... Link pipe, 6... Connection conductor, 7... Bimetal, 8...
Link support, 9... Cutting plate spring, 10... Movable contact, 11... Fixed contact, 12... Load terminal plate.
Claims (1)
端にハンドルを軸止し、操作部を露出するため
の穴を有する中空状のケースと、該ケースに回
転自由に軸止され、ケース外側に操作部、内側
にリンクとの接続部を有するハンドルと、該ハ
ンドルの接続部に回動自由に一端を挿入し他端
を係合部とする略コ字状リンクと、該コ字状リ
ンクの一端に装着されハンドルとコ字状リンク
を折曲げる方向に付勢するハンドル復帰バネ
と、一端に可動接点を固着し、他端に切溝を設
け中央部を長方形に切抜いたバイメタルと、一
端に溝を有し、他端に前記バイメタルに係合す
るＶ字状形成部を有し、略中央に前記コ字状リ
ンクの他端が係合する係合部と、該係合部の反
対側に突起部分を設けた絶縁物より成り、前記
バイメタルの長方形切抜内に装着されるリンク
承と、一端に前記バイメタルが係止する切欠部
を有し、該切欠部の外側にバイメタル懸架用、
内側に遮断用板バネ懸架用の溝を有し、他端を
上記ケースより延出し端子部としたＬ字状の接
続導体と、該接続導体の溝と、前記リンク承の
突起部分に懸架される、遮断用板バネと、一端
に固定接点を固着し、他端を上記ケースより延
出し端子部とした負荷端子板とにより構成され
ることを特徴とするサーキツトプロテクタ。 ２ 前記リンクの他端係合部に円筒状のリンクパ
イプを取付けたことを特徴とする実用新案登録
請求範囲第１項記載のサーキツトプロテクタ。[Claims for Utility Model Registration] 1. A hollow case having a groove for extending a terminal part at one end, a hole for pivotally fixing a handle at the other end, and a hole for exposing an operating part; A handle that is rotatably fixed to the case and has an operation part on the outside of the case and a connection part with a link on the inside, one end of which is rotatably inserted into the connection part of the handle, and the other end is an engagement part. A U-shaped link, a handle return spring that is attached to one end of the U-shaped link and urges the handle and the U-shaped link in a bending direction, a movable contact fixed to one end, and a cut groove provided at the other end. A bimetal with a rectangular cutout in the center, a groove at one end, a V-shaped forming part that engages with the bimetal at the other end, and the other end of the U-shaped link engages approximately in the center. It is made of an insulator having an engaging part and a protruding part on the opposite side of the engaging part, and has a link bearing installed in a rectangular cutout of the bimetal, and a notch part in which the bimetal is locked at one end. , for bimetal suspension on the outside of the notch,
An L-shaped connecting conductor having a groove on the inside for suspending a cut-off leaf spring, the other end extending from the case and serving as a terminal, and a connecting conductor suspended in the groove of the connecting conductor and a protruding portion of the link support. 1. A circuit protector comprising: an interrupting leaf spring; and a load terminal plate having a fixed contact fixed to one end and a terminal portion extending from the other end of the case. 2. The circuit protector according to claim 1, wherein a cylindrical link pipe is attached to the other end engaging portion of the link.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17410685U JPH0220746Y2 (en) | 1985-11-11 | 1985-11-11 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17410685U JPH0220746Y2 (en) | 1985-11-11 | 1985-11-11 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6281349U JPS6281349U (en) | 1987-05-25 |
| JPH0220746Y2 true JPH0220746Y2 (en) | 1990-06-06 |
Family
ID=31112194
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP17410685U Expired JPH0220746Y2 (en) | 1985-11-11 | 1985-11-11 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0220746Y2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11314468B2 (en) | 2020-03-03 | 2022-04-26 | Fujifilm Business Innovation Corp. | Information processing apparatus and image forming apparatus |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2550320B2 (en) * | 1986-05-26 | 1996-11-06 | 松下電工株式会社 | Overcurrent protection device |
| JPH0629876Y2 (en) * | 1987-07-29 | 1994-08-10 | テンパ−ル工業株式会社 | Circuit protector |
-
1985
- 1985-11-11 JP JP17410685U patent/JPH0220746Y2/ja not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11314468B2 (en) | 2020-03-03 | 2022-04-26 | Fujifilm Business Innovation Corp. | Information processing apparatus and image forming apparatus |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6281349U (en) | 1987-05-25 |
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