JP2007294255A - Electromagnetic switching device - Google Patents

Electromagnetic switching device Download PDF

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Publication number
JP2007294255A
JP2007294255A JP2006121311A JP2006121311A JP2007294255A JP 2007294255 A JP2007294255 A JP 2007294255A JP 2006121311 A JP2006121311 A JP 2006121311A JP 2006121311 A JP2006121311 A JP 2006121311A JP 2007294255 A JP2007294255 A JP 2007294255A
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Japan
Prior art keywords
fixed
cover
iron core
bent
coil bobbin
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JP2006121311A
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Japanese (ja)
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JP4453677B2 (en
Inventor
Tadahiro Itou
督裕 伊東
Katsuya Konama
克哉 粉間
Motoharu Kubo
基治 久保
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Panasonic Electric Works Co Ltd
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Matsushita Electric Works Ltd
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Priority to JP2006121311A priority Critical patent/JP4453677B2/en
Application filed by Matsushita Electric Works Ltd filed Critical Matsushita Electric Works Ltd
Priority to KR1020077022670A priority patent/KR100922542B1/en
Priority to CN2006800143831A priority patent/CN101167151B/en
Priority to PCT/JP2006/323204 priority patent/WO2007060945A1/en
Priority to EP06833050A priority patent/EP1953784B1/en
Priority to US11/887,007 priority patent/US7876183B2/en
Priority to DE602006017726T priority patent/DE602006017726D1/en
Publication of JP2007294255A publication Critical patent/JP2007294255A/en
Application granted granted Critical
Publication of JP4453677B2 publication Critical patent/JP4453677B2/en
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Abstract

<P>PROBLEM TO BE SOLVED: To provide an electromagnetic switching device capable of reducing costs required for manufacturing. <P>SOLUTION: In a cover 1 for fixing a fixed core 3 at an area to a coil bobbin 2 by covering an opening at the upper edge of the coil bobbin 2; the cover 1 comprises a main part 10 for covering the upper end face of the fixed core 3, a bent section 11 that is formed integrally with the main part 10 and covers the upper side of the fixed core 3, and a fixed section 12 fixed on the upper surface of a yoke 5 while being formed integrally with the bent section 11. The main part 10, the bent section 11, and the fixed section 12 are formed by bending a sheet of plate member. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

本発明は、パワー負荷用のリレーや電磁開閉器等に好適な電磁開閉装置に関する。   The present invention relates to an electromagnetic switch suitable for a power load relay, an electromagnetic switch or the like.

従来から、この種の電磁開閉装置として、図７に示すように、操作部Ａと接点装置Ｂとを備えたものが提供されている。操作部Ａは、励磁用巻線２０が巻装された中空筒状のコイルボビン２と、コイルボビン２の一端側に収納される固定鉄心３と、コイルボビン２の他端側に収納されて固定鉄心３に当接する位置と固定鉄心３から離れる位置との間で移動可能な可動鉄心４とを備えている。これら固定鉄心３及び可動鉄心４は、励磁用巻線２０への通電により生じる磁束を通す磁路を磁性金属材料から成りコイルボビン２を包囲する継鉄５と共に形成し、励磁用巻線２０への通電が入切されることにより固定鉄心３に可動鉄心４が接離する。可動鉄心４には、非磁性材料からなる操作軸６の一端部が取り付けられており、該操作軸６は固定鉄心３の軸方向に貫設された挿通孔３ａに挿通されている。操作軸６の他端部には、可動鉄心４の移動に連動して接点装置Ｂが開閉されるように、導電性材料で形成された略矩形状の可動接触子６ａが連結されている。該可動接触子６ａの同図における左右両端部には、固定接点７がそれぞれ対向して配置されており、固定鉄心３に可動鉄心４が当接した状態では、可動接触子６ａと固定接点７とからなる接点装置Ｂが閉成される。一方、固定鉄心３と可動鉄心４との間に設けられた復帰ばね８のばね力によって可動鉄心３が固定鉄心４から離間された状態では接点装置Ｂが開放される。   Conventionally, as this kind of electromagnetic switching device, as shown in FIG. 7, a device provided with an operation unit A and a contact device B has been provided. The operation unit A includes a hollow cylindrical coil bobbin 2 around which an exciting winding 20 is wound, a fixed core 3 housed on one end side of the coil bobbin 2, and a stationary iron core 3 housed on the other end side of the coil bobbin 2. And a movable iron core 4 that is movable between a position that contacts the iron core and a position that is separated from the fixed iron core 3. The fixed iron core 3 and the movable iron core 4 form a magnetic path through which a magnetic flux generated by energization of the exciting winding 20 is formed together with the yoke 5 made of a magnetic metal material and surrounding the coil bobbin 2. When the energization is turned on and off, the movable iron core 4 comes into contact with and is separated from the fixed iron core 3. One end portion of an operating shaft 6 made of a nonmagnetic material is attached to the movable iron core 4, and the operating shaft 6 is inserted through an insertion hole 3 a that extends in the axial direction of the fixed iron core 3. A substantially rectangular movable contact 6 a made of a conductive material is connected to the other end of the operation shaft 6 so that the contact device B is opened and closed in conjunction with the movement of the movable iron core 4. Fixed contact points 7 are arranged opposite to the left and right ends of the movable contact 6a in the same figure. When the movable core 4 is in contact with the fixed core 3, the movable contact 6a and the fixed contact 7 are arranged. Is closed. On the other hand, when the movable iron core 3 is separated from the fixed iron core 4 by the spring force of the return spring 8 provided between the fixed iron core 3 and the movable iron core 4, the contact device B is opened.

ここで、特許文献１に記載のものでは、固定鉄心３の一端部周縁に設けられた鍔部３０を継鉄５に固着することで固定鉄心３を固定していたが、この場合、可動鉄心４が固定鉄心３に衝突する際の振動音が固定鉄心３及び継鉄５を介して外部に伝播するという問題があった。
そこで、図７に示すものには、コイルボビン２の一端側に当接する継鉄５にカバー１が取り付けられている。カバー１は、図８に示すように、一面を開口した有底円筒状の台部１ｂと、台部１ｂの開口周縁に設けられたフランジ１ｃとから成り、台部１ｂの略中央には操作軸６を挿通させるための軸孔１ａが貫設されている。該カバー１は、フランジ１ｃを継鉄５に固着することで取り付けられ、固定鉄心３の鍔部３０を台部１ｂ内側に収納する。このように構成することで、カバー１とコイルボビン２及び継鉄５との間で固定鉄心３の鍔部３０を固定して固定鉄心３が抜けるのを防止すると共に、カバー１と固定鉄心３の鍔部３０との間並びに固定鉄心３の鍔部３０と継鉄５との間にそれぞれゴム等の緩衝部材９を設けることによって、可動鉄心４が固定鉄心３に衝突する際の振動音を低減している。
特開平１１−２３２９８６号公報 Here, in the thing of patent document 1, the fixed iron core 3 was fixed by fixing the collar part 30 provided in the one end part periphery of the fixed iron core 3 to the yoke 5, but in this case, a movable iron core is fixed. There has been a problem that vibration sound generated when 4 collides with the fixed iron core 3 propagates to the outside through the fixed iron core 3 and the yoke 5.
Therefore, in the device shown in FIG. 7, the cover 1 is attached to the yoke 5 that abuts on one end side of the coil bobbin 2. As shown in FIG. 8, the cover 1 is composed of a bottomed cylindrical base portion 1b having an opening on one surface and a flange 1c provided on the opening periphery of the base portion 1b. A shaft hole 1a through which the shaft 6 is inserted is provided. The cover 1 is attached by fixing the flange 1c to the yoke 5, and accommodates the flange portion 30 of the fixed iron core 3 inside the base portion 1b. With this configuration, the flange 30 of the fixed iron core 3 is fixed between the cover 1 and the coil bobbin 2 and the yoke 5 to prevent the fixed iron core 3 from coming off, and the cover 1 and the fixed iron core 3 By providing a buffer member 9 such as rubber between the flange portion 30 and between the flange portion 30 and the yoke 5 of the fixed iron core 3, vibration noise when the movable iron core 4 collides with the fixed iron core 3 is reduced. is doing.
JP-A-11-232986

ところで、上記従来例では、金属製の板材を絞り加工することでカバー１の台部１ｂを形成していた。しかしながら、絞り加工では、材料取りの際に余分な材料を必要とし、また加工に必要な設備及び金型への投資など、カバー１の製作に必要なコストが高くなってしまうという問題があった。   By the way, in the said prior art example, the base part 1b of the cover 1 was formed by drawing a metal plate material. However, in the drawing process, there is a problem that an extra material is required for material removal, and the cost required for the production of the cover 1 is increased, such as investment in equipment and a mold necessary for the process. .

本発明は、上記の点に鑑みて為されたもので、製作に必要なコストを削減することのできる電磁開閉装置を提供することを目的とする。   The present invention has been made in view of the above points, and an object of the present invention is to provide an electromagnetic switching device capable of reducing the cost required for manufacturing.

請求項１の発明は、上記目的を達成するために、励磁用巻線が巻装される中空筒状のコイルボビンと、コイルボビン内側の一端部に収納される固定鉄心と、コイルボビンの一端部の開口を覆ってコイルボビンとの間で固定鉄心を固定するカバーと、コイルボビン内側の他端部に固定鉄心に対向する形で配置されて励磁用巻線への通電が入切されると固定鉄心に吸引されて当接する位置と固定鉄心から離れる位置との間で移動自在な可動鉄心とを備えた操作部と、可動鉄心の移動に連動して開閉する接点を有した接点装置とを備えた電磁開閉装置であって、カバーは、固定鉄心の端面を覆う主部と、主部と一体に形成されて固定鉄心の側面を覆う折曲部と、折曲部と一体に形成されて被固定部位に固定される固定部とから成り、主部及び折曲部及び固定部は、板状部材を曲げ加工することで形成されたことを特徴とする。   In order to achieve the above object, the invention of claim 1 is a hollow cylindrical coil bobbin around which an exciting winding is wound, a fixed iron core housed in one end portion inside the coil bobbin, and an opening at one end portion of the coil bobbin. A cover for fixing the fixed iron core between the coil bobbin and the coil bobbin, and the other end inside the coil bobbin facing the fixed iron core. Electromagnetic opening / closing comprising an operation unit having a movable iron core movable between a position where it comes into contact and a position away from the fixed iron core, and a contact device having a contact which opens and closes in conjunction with the movement of the movable iron core The cover is a main part that covers the end surface of the fixed core, a bent part that is formed integrally with the main part and covers the side surface of the fixed core, and a cover that is formed integrally with the bent part. The main part and the bent part Fine fixing unit is characterized in that it is formed by bending a plate member.

請求項２の発明は、請求項１の発明において、カバーには、一端部が主部と一体に形成されて他端部が被固定部位に当接する壁部が設けられたことを特徴とする。   According to a second aspect of the present invention, in the first aspect of the present invention, the cover is provided with a wall portion having one end portion formed integrally with the main portion and the other end portion contacting the fixed portion. .

請求項３の発明は、請求項２の発明において、カバーには、壁部の他端部と一体に形成されて被固定部位に溶接される溶接部が設けられたことを特徴とする。   According to a third aspect of the present invention, in the second aspect of the present invention, the cover is provided with a welded portion that is formed integrally with the other end of the wall portion and is welded to the fixed portion.

請求項４の発明は、請求項１の発明において、カバーには、折曲部及び固定部と当接し且つこれらを連結する連結部が設けられたことを特徴とする。   According to a fourth aspect of the present invention, in the first aspect of the present invention, the cover is provided with a connecting portion that contacts and connects the bent portion and the fixed portion.

請求項５の発明は、請求項１の発明において、カバーは、主部及び折曲部の成す角度が鈍角となるように形成されたことを特徴とする。   The invention of claim 5 is characterized in that, in the invention of claim 1, the cover is formed so that an angle formed by the main portion and the bent portion is an obtuse angle.

請求項６の発明は、請求項５の発明において、カバーは、主部が略四角形状であって、該主部の四隅に折曲部及び固定部が設けられたことを特徴とする。   According to a sixth aspect of the present invention, in the fifth aspect of the invention, the cover has a substantially quadrangular main portion, and a bent portion and a fixing portion are provided at four corners of the main portion.

請求項１の発明によれば、カバーは、固定鉄心の端面を覆う主部と、主部と一体に形成されて固定鉄心の側面を覆う折曲部と、折曲部と一体に形成されて被固定部位に固定される固定部とから成り、主部及び折曲部及び固定部は、板状部材を曲げ加工することで形成されたので、絞り加工で形成する場合と比較して、材料取りに余分な材料を必要とすることなく、また加工に必要な設備及び金型への投資をすることがないので、製作に必要なコストを削減することができる。   According to the invention of claim 1, the cover is formed integrally with the main part that covers the end surface of the fixed core, the bent part that is formed integrally with the main part and covers the side surface of the fixed core, and the bent part. It consists of a fixed part that is fixed to the fixed part, and the main part, the bent part, and the fixed part are formed by bending a plate-like member. It is possible to reduce the cost required for manufacturing without requiring extra materials for the processing and without investing in equipment and molds necessary for processing.

請求項２の発明によれば、カバーには、一端部が主部と一体に形成されて他端部が被固定部位に当接する壁部が設けられたので、主部の強度を高めることができ、したがって固定鉄心を強固に固定することができる。また、部品形状を安定化することができる。   According to the invention of claim 2, since the cover is provided with the wall portion in which one end portion is formed integrally with the main portion and the other end portion comes into contact with the fixed portion, the strength of the main portion can be increased. Therefore, the fixed iron core can be firmly fixed. Further, the part shape can be stabilized.

請求項３の発明によれば、カバーには、壁部の他端部と一体に形成されて被固定部位に溶接される溶接部が設けられたので、壁部を被固定部位に溶接することで、主部の強度を更に高めることができる。   According to the invention of claim 3, the cover is provided with a welded portion that is integrally formed with the other end portion of the wall portion and is welded to the fixed portion, so that the wall portion is welded to the fixed portion. Thus, the strength of the main part can be further increased.

請求項４の発明によれば、カバーには、折曲部及び固定部と当接し且つこれらを連結する連結部が設けられたので、折曲部の強度を高めることができ、また折曲部の形状を安定化することができる。   According to the invention of claim 4, since the cover is provided with the connecting portion that contacts and connects the bent portion and the fixed portion, the strength of the bent portion can be increased. The shape of can be stabilized.

請求項５の発明によれば、カバーは、主部及び折曲部の成す角度が鈍角となるように形成されたので、折曲部が固定鉄心を押さえ込む方向に付勢するので、固定鉄心をより確実に固定することができる。   According to the invention of claim 5, since the cover is formed so that the angle formed by the main portion and the bent portion becomes an obtuse angle, the bent portion urges the fixed core in the direction in which the fixed core is pressed. It can be fixed more reliably.

請求項６の発明によれば、カバーは、主部が略四角形状であって、該主部の四隅に折曲部及び固定部が設けられたので、固定鉄心に対して確実に位置決めされるので、組立性を向上することができる。   According to the invention of claim 6, the cover has a substantially quadrangular main portion, and the bent portion and the fixing portion are provided at the four corners of the main portion, so that the cover is reliably positioned with respect to the fixed iron core. As a result, assemblability can be improved.

以下、本発明の実施形態について説明する。但し、本発明の基本的構成はカバー１を除いて従来例と同様なので、従来例と共通の部位には従来例と同じ番号を付して説明を省略し、本発明の特徴となる部分についてのみ説明する。すなわち本発明は、カバー１を１枚の板状部材を曲げ加工して形成したことに特徴がある。尚、以下の説明では、図７における上下左右を上下左右方向、手前を前方向、奥を後方向と定める。
（実施形態１）
以下、本発明の第１の実施形態について図面を用いて説明する。本実施形態のカバー１は、図１（ｂ）に示すように、固定鉄心３の鍔部３０の上面を覆う主部１０と、主部１０と一体に形成されて固定鉄心３の鍔部３０の側面を覆う２つの折曲部１１と、折曲部１１と一体に形成されて継鉄５の上面に固定される２つの固定部１２とから成り、各部位は１枚の板状部材を曲げ加工することで形成されている。
主部１０は、図１（ａ）に示すように、略正方形状に形成され、その略中央に軸孔１ａが貫設されている。折曲部１１は、何れも略長方形状で、主部１０の左右両端縁とそれぞれ一体に形成され、主部１０との境界線で主部１０と直交するように下方向に折曲されている。固定部１２は、何れも略長方形状で、右側の固定部１２は、右側の折曲部１１の右端縁と一体に形成され、その境界線で主部１０と並行するように右方向に折曲されている。左側の固定部１２は、左側の折曲部１１の左端縁と一体に形成され、その境界線で主部１０と並行するように左方向に折曲されている。尚、右側の固定部１２の右端縁及び左側の固定部１２の左端縁は、何れも丸みを帯びた形状となっている。
上記のカバー１は、主部１０を固定鉄心３の鍔部３０の上面と当接させ且つ折曲部１１を固定鉄心３の鍔部３０の側面と当接させて、固定部１２を継鉄５の上面に固着することで固定される。したがって、固定鉄心３の鍔部３０がカバー１の主部１０及び折曲部１１に囲まれる空間に収納されて、固定鉄心３がカバー１とコイルボビン２及び継鉄５との間で固定される。
上述のように、カバー１を１枚の板状部材を曲げ加工によって形成することで、絞り加工で形成した場合と比較して、材料取りの際に余分な材料を用いる必要がなく、また絞り加工に必要な金型及び設備への投資をすることなく加工できるので、製作に必要なコストを削減することができる。
ところで、図２（ｂ）に示すように、主部１０の前後両端縁にそれぞれ略矩形状の壁部１３を一体に形成してもよい。壁部１３は、図２（ａ）に示すように、何れも主部１０との境界線で主部１０と直交するように下方向に折曲されて、各下端縁は、カバー１が継鉄５に取り付けられた状態において継鉄５の上面に当接するようになっている。このように構成することで、壁部１３が継鉄５の上面に当接して折曲部１１と共に主部１０を支持するため、主部１０の強度を高めることができ、したがって固定鉄心３を強固に固定することができる。また、外力によるカバー１の変形を抑えることができる。
更に、図３（ｂ）に示すように、各壁部１３それぞれに継鉄５の上面に溶接される溶接部１４を一体に形成してもよい。溶接部１４は、図３（ａ）に示すように、何れも略矩形状に形成され、前側の溶接部１４は、前側の壁部１３の前端縁と一体に形成され、その境界線で主部１０と並行するように前方向に折曲されている。後側の溶接部１４は、後側の壁部１３の後端縁と一体に形成され、その境界線で主部１０と並行するように後方向に折曲されている。尚、前側の溶接部１４の前端縁及び後側の溶接部１４の後端縁は、何れも丸みを帯びた形状となっている。このように、溶接部１４を継鉄５の上面に溶接することで壁部１３を固定することができ、したがって主部１０の強度を更に高めることができる。
また、図４（ｂ）に示すように、図１（ａ）において折曲部１１と固定部１２に当接し且つ折曲部１１及び固定部１２を連結する連結部１５を設けてもよい。連結部１５は、図４（ａ）に示すように、略三角柱状に形成され、互いに直交する略長方形状の２つの側面がそれぞれ折曲部１１及び固定部１２に当接している。このように、連結部１５が折曲部１１及び固定部１２を連結することで、折曲部１１の強度を高めると共に、折曲部１１の外力による変形を抑えることができる。
（実施形態２）
以下、本発明の第２の実施形態について図面を用いて説明する。本実施形態は、図５（ｂ）に示すように、図１（ｂ）と同じ１枚の板状部材を折曲することで形成されているが、折曲部１１は、主部１０と成す角度が鈍角となるように折曲されている（図５（ａ）参照）。上記カバー１の主部１０を固定鉄心３の鍔部３０の上面と当接させ、固定部１２を継鉄５の上面に固着すると、主部１０が固定鉄心３に押されることで折曲部１１が上方へと撓む。したがって、折曲部１１が固定鉄心３を下方へと付勢し、固定鉄心３をより強固に固定することができる。
また、図６（ｂ）に示すように、主部１０の四隅にそれぞれ折曲部１１及び固定部１２を一体に形成し、各折曲部１１と主部１０との成す角度が鈍角となるように折曲してもよい（図６（ａ）参照）。この場合、上述のように折曲部１１の撓みによって固定鉄心３をより強固に固定すると共に、主部１０の四隅に折曲部１１及び固定部１２を設けているので、固定鉄心３に対してカバー１を確実に位置決めすることができ、組立性を向上することができる。 Hereinafter, embodiments of the present invention will be described. However, since the basic configuration of the present invention is the same as that of the conventional example except for the cover 1, the same parts as those of the conventional example are denoted by the same reference numerals as those in the conventional example, and the description thereof is omitted. Only explained. That is, the present invention is characterized in that the cover 1 is formed by bending a single plate-like member. In the following description, the top, bottom, left, and right in FIG.
(Embodiment 1)
Hereinafter, a first embodiment of the present invention will be described with reference to the drawings. As shown in FIG. 1 (b), the cover 1 of the present embodiment includes a main portion 10 that covers the upper surface of the flange portion 30 of the fixed iron core 3, and a flange portion 30 of the fixed iron core 3 that is formed integrally with the main portion 10. The two bent portions 11 covering the side surfaces of the first and second bent portions 11 and the two fixed portions 12 formed integrally with the bent portion 11 and fixed to the upper surface of the yoke 5, each of which is composed of one plate-like member. It is formed by bending.
As shown in FIG. 1 (a), the main portion 10 is formed in a substantially square shape, and a shaft hole 1a is formed through substantially the center thereof. Each of the bent portions 11 has a substantially rectangular shape, and is formed integrally with both left and right edges of the main portion 10, and is bent downward so as to be orthogonal to the main portion 10 at a boundary line with the main portion 10. Yes. Each of the fixing portions 12 is substantially rectangular, and the right fixing portion 12 is formed integrally with the right edge of the right bent portion 11 and is folded rightward so as to be parallel to the main portion 10 at the boundary line. It is tuned. The left fixing portion 12 is formed integrally with the left end edge of the left bent portion 11 and is bent leftward so as to be parallel to the main portion 10 at the boundary line. Note that the right end edge of the right-side fixing part 12 and the left end edge of the left-side fixing part 12 are both rounded.
In the cover 1, the main portion 10 is brought into contact with the upper surface of the flange portion 30 of the fixed iron core 3, and the bent portion 11 is brought into contact with the side surface of the flange portion 30 of the fixed iron core 3. It is fixed by adhering to the upper surface of 5. Therefore, the flange portion 30 of the fixed iron core 3 is accommodated in the space surrounded by the main portion 10 and the bent portion 11 of the cover 1, and the fixed iron core 3 is fixed between the cover 1, the coil bobbin 2, and the yoke 5. .
As described above, the cover 1 is formed by bending a single plate-like member, so that it is not necessary to use an extra material when removing the material as compared with the case where the cover 1 is formed by drawing. Since it can process without investing in the metal mold | die and equipment required for a process, the cost required for manufacture can be reduced.
By the way, as shown in FIG.2 (b), you may integrally form the substantially rectangular wall part 13 in the front-and-rear both-ends edge of the main part 10, respectively. As shown in FIG. 2A, the wall portion 13 is bent downward so as to be orthogonal to the main portion 10 at the boundary line with the main portion 10, and the cover 1 is connected to each lower end edge. In the state attached to the iron 5, it comes into contact with the upper surface of the yoke 5. By comprising in this way, since the wall part 13 contact | abuts to the upper surface of the yoke 5 and supports the main part 10 with the bending part 11, the intensity | strength of the main part 10 can be raised, Therefore, the fixed iron core 3 is made. It can be firmly fixed. Further, deformation of the cover 1 due to external force can be suppressed.
Further, as shown in FIG. 3B, a welded portion 14 welded to the upper surface of the yoke 5 may be integrally formed on each wall portion 13. As shown in FIG. 3A, the welded portions 14 are all formed in a substantially rectangular shape, and the front welded portion 14 is formed integrally with the front end edge of the front wall portion 13 and is mainly formed at the boundary line. It is bent forward so as to be parallel to the portion 10. The rear welded portion 14 is formed integrally with the rear end edge of the rear wall portion 13, and is bent rearward so as to be parallel to the main portion 10 at the boundary line. Note that the front end edge of the front welded portion 14 and the rear end edge of the rear welded portion 14 are both rounded. Thus, the wall part 13 can be fixed by welding the welding part 14 to the upper surface of the yoke 5, Therefore Therefore, the intensity | strength of the main part 10 can further be raised.
Further, as shown in FIG. 4B, a connecting portion 15 that contacts the bent portion 11 and the fixed portion 12 and connects the bent portion 11 and the fixed portion 12 in FIG. 1A may be provided. As shown in FIG. 4A, the connecting portion 15 is formed in a substantially triangular prism shape, and two substantially rectangular side surfaces orthogonal to each other are in contact with the bent portion 11 and the fixed portion 12, respectively. As described above, the connecting portion 15 connects the bent portion 11 and the fixed portion 12 to increase the strength of the bent portion 11 and to suppress deformation due to the external force of the bent portion 11.
(Embodiment 2)
Hereinafter, a second embodiment of the present invention will be described with reference to the drawings. As shown in FIG. 5 (b), the present embodiment is formed by bending the same plate-shaped member as in FIG. 1 (b). It is bent so that the formed angle becomes an obtuse angle (see FIG. 5A). When the main portion 10 of the cover 1 is brought into contact with the upper surface of the collar portion 30 of the fixed iron core 3 and the fixed portion 12 is fixed to the upper surface of the yoke 5, the main portion 10 is pushed by the fixed iron core 3 so that the bent portion is formed. 11 bends upward. Therefore, the bending part 11 can urge the fixed iron core 3 downward, and can fix the fixed iron core 3 more firmly.
Moreover, as shown in FIG.6 (b), the bending part 11 and the fixing | fixed part 12 are integrally formed in the four corners of the main part 10, respectively, and the angle which each bending part 11 and the main part 10 comprise becomes an obtuse angle. (See FIG. 6A). In this case, the fixed iron core 3 is more firmly fixed by the bending of the bent portion 11 as described above, and the bent portion 11 and the fixed portion 12 are provided at the four corners of the main portion 10. Thus, the cover 1 can be reliably positioned, and the assemblability can be improved.

本発明の第１の実施形態の電磁開閉装置のカバーを示す図で、（ａ）は斜視図で、（ｂ）は展開図である。It is a figure which shows the cover of the electromagnetic switching device of the 1st Embodiment of this invention, (a) is a perspective view, (b) is an expanded view. 同上の壁部を設けた場合を示す図で、（ａ）は斜視図で、（ｂ）は展開図である。It is a figure which shows the case where the wall part same as the above is provided, (a) is a perspective view, (b) is an expanded view. 同上の壁部及び溶接部を設けた場合を示す図で、（ａ）は斜視図で、（ｂ）は展開図である。It is a figure which shows the case where the wall part and welding part same as the above are provided, (a) is a perspective view, (b) is an expanded view. 同上の連結部を設けた場合を示す図で、（ａ）は斜視図で、（ｂ）は展開図である。It is a figure which shows the case where the connection part same as the above is provided, (a) is a perspective view, (b) is an expanded view. 本発明の第２の実施形態の電磁開閉装置のカバーを示す図で、（ａ）は斜視図で、（ｂ）は展開図である。It is a figure which shows the cover of the electromagnetic switching device of the 2nd Embodiment of this invention, (a) is a perspective view, (b) is an expanded view. 同上の主部の四隅に折曲部及び固定部を設けた場合を示す図で、（ａ）は斜視図で、（ｂ）は展開図である。It is a figure which shows the case where a bending part and a fixing | fixed part are provided in the four corners of the main part same as the above, (a) is a perspective view, (b) is an expanded view. 従来の電磁開閉装置を示す断面図である。It is sectional drawing which shows the conventional electromagnetic switch. 同上のカバーの説明図である。It is explanatory drawing of a cover same as the above.

符号の説明Explanation of symbols

１ カバー
１０ 主部
１１ 折曲部
１２ 固定部 1 Cover 10 Main part 11 Bent part 12 Fixed part

Claims (6)

励磁用巻線が巻装される中空筒状のコイルボビンと、コイルボビン内側の一端部に収納される固定鉄心と、コイルボビンの一端部の開口を覆ってコイルボビンとの間で固定鉄心を固定するカバーと、コイルボビン内側の他端部に固定鉄心に対向する形で配置されて励磁用巻線への通電が入切されると固定鉄心に吸引されて当接する位置と固定鉄心から離れる位置との間で移動自在な可動鉄心とを備えた操作部と、可動鉄心の移動に連動して開閉する接点を有した接点装置とを備えた電磁開閉装置であって、カバーは、固定鉄心の端面を覆う主部と、主部と一体に形成されて固定鉄心の側面を覆う折曲部と、折曲部と一体に形成されて被固定部位に固定される固定部とから成り、主部及び折曲部及び固定部は、板状部材を曲げ加工することで形成されたことを特徴とする電磁開閉装置。   A hollow cylindrical coil bobbin around which an exciting winding is wound, a fixed iron core housed in one end portion inside the coil bobbin, a cover that covers an opening at one end portion of the coil bobbin and fixes the fixed iron core between the coil bobbin and The coil bobbin is arranged at the other end of the coil bobbin so as to face the fixed iron core. An electromagnetic switchgear comprising an operating part having a movable core that is movable and a contact device having a contact that opens and closes in conjunction with the movement of the movable core, the cover covering the end face of the fixed core A bent portion that is formed integrally with the main portion and covers the side surface of the fixed iron core, and a fixed portion that is formed integrally with the bent portion and is fixed to the fixed portion. And the fixed part is formed by bending a plate-shaped member. Electromagnetic switching device, characterized in that it is. 前記カバーには、一端部が主部と一体に形成されて他端部が被固定部位に当接する壁部が設けられたことを特徴とする請求項１記載の電磁開閉装置。   2. The electromagnetic switching device according to claim 1, wherein the cover is provided with a wall portion having one end portion formed integrally with the main portion and the other end portion coming into contact with the fixed portion. 前記カバーには、壁部の他端部と一体に形成されて被固定部位に溶接される溶接部が設けられたことを特徴とする請求項２記載の電磁開閉装置。   3. The electromagnetic switching device according to claim 2, wherein the cover is provided with a welded portion that is integrally formed with the other end of the wall portion and is welded to the fixed portion. 前記カバーには、折曲部及び固定部と当接し且つこれらを連結する連結部が設けられたことを特徴とする請求項１記載の電磁開閉装置。   2. The electromagnetic switch according to claim 1, wherein the cover is provided with a connecting portion that contacts and connects the bent portion and the fixed portion. 前記カバーは、主部及び折曲部の成す角度が鈍角となるように形成されたことを特徴とする請求項１記載の電磁開閉装置。   2. The electromagnetic switch according to claim 1, wherein the cover is formed so that an angle formed by the main portion and the bent portion is an obtuse angle. 前記カバーは、主部が略四角形状であって、該主部の四隅に折曲部及び固定部が設けられたことを特徴とする請求項５記載の電磁開閉装置。

6. The electromagnetic switch according to claim 5, wherein the cover has a substantially quadrangular main portion, and bent portions and fixing portions are provided at four corners of the main portion.

JP2006121311A 2005-11-25 2006-04-25 Electromagnetic switchgear Expired - Fee Related JP4453677B2 (en)

Priority Applications (7)

Application Number Priority Date Filing Date Title
JP2006121311A JP4453677B2 (en) 2006-04-25 2006-04-25 Electromagnetic switchgear
CN2006800143831A CN101167151B (en) 2005-11-25 2006-11-21 Electromagnetic switch
PCT/JP2006/323204 WO2007060945A1 (en) 2005-11-25 2006-11-21 Electromagnetic switch
EP06833050A EP1953784B1 (en) 2005-11-25 2006-11-21 Electromagnetic switching device
KR1020077022670A KR100922542B1 (en) 2005-11-25 2006-11-21 Electromagnetic switching device
US11/887,007 US7876183B2 (en) 2005-11-25 2006-11-21 Electromagnetic switching device
DE602006017726T DE602006017726D1 (en) 2005-11-25 2006-11-21 ELECTROMAGNETIC SWITCHING DEVICE

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2006121311A JP4453677B2 (en) 2006-04-25 2006-04-25 Electromagnetic switchgear

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JP2007294255A true JP2007294255A (en) 2007-11-08
JP4453677B2 JP4453677B2 (en) 2010-04-21

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113490810A (en) * 2019-03-05 2021-10-08 伊格尔工业股份有限公司 Electromagnetic valve

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113490810A (en) * 2019-03-05 2021-10-08 伊格尔工业股份有限公司 Electromagnetic valve

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