JP4187868B2 - Electromagnetic relay - Google Patents

Electromagnetic relay Download PDF

Info

Publication number
JP4187868B2
JP4187868B2 JP11412799A JP11412799A JP4187868B2 JP 4187868 B2 JP4187868 B2 JP 4187868B2 JP 11412799 A JP11412799 A JP 11412799A JP 11412799 A JP11412799 A JP 11412799A JP 4187868 B2 JP4187868 B2 JP 4187868B2
Authority
JP
Japan
Prior art keywords
armature
leaf spring
electromagnetic relay
bent portion
yoke
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
Application number
JP11412799A
Other languages
Japanese (ja)
Other versions
JP2000306482A (en
Inventor
正常 須藤
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
TE Connectivity Solutions GmbH
Original Assignee
Tyco Electronics Logistics AG
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Tyco Electronics Logistics AG filed Critical Tyco Electronics Logistics AG
Priority to JP11412799A priority Critical patent/JP4187868B2/en
Publication of JP2000306482A publication Critical patent/JP2000306482A/en
Application granted granted Critical
Publication of JP4187868B2 publication Critical patent/JP4187868B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Images

Landscapes

  • Electromagnets (AREA)

Description

【0001】
【発明の属する技術分野】
本発明は、L字形接極子の折曲部がヨーク上端部に揺動可能にヒンジ支持された電磁リレーに関する。
【0002】
【従来の技術】
従来のこの種の電磁リレーは、図3に示すように構成されている。すなわちプラスチックベースおよび有利にはプラスチックベース1と一体に成形されたコイルボビン2の中心孔に鉄心3が装着されており、鉄心3の下端部がL字形ヨーク4の短かな脚部と連結されており、鉄心がコイルの励磁により磁化された場合、鉄心上端に吸着されるほぼL字形の接極子5がヨーク4の上端部に揺動可能にヒンジ支持されている。
【0003】
6はコイルで、このコイルの端子がプラスチックベース1に支持されている。8はカードで、接極子5と、可動接点9を有する可動接片10とを連結している。11は固定接点12を有する固定接片であり、13及び14はそれぞれ可動接片および固定接片の端子でプラスチックペース1に固定されている。15は接極子をヨーク上端エッジ部に圧接支持しかつ接極子による接点閉成運動の際の接極子の運動を制動する板ばねである。
【0004】
上述の構成の電磁リレーにおいて、コイル6に励磁電流を流した場合、鉄心3の上端面から離れていた接極子5がヨーク4の上端エッジ部を中心に回動し、カード8を介して可動接片10を押圧して可動接点9が固定接片11上の固定接点に押圧接触される。
【0005】
【発明が解決しようとする課題】
上述の従来の電磁リレーにおいて落下等の大きな衝撃力が加わった際、板ばね15の接極子をヨーク上端の外側エッジへの圧接する力より接極子の外方への飛出し力が大となり、板ばねが変形し、ヨーク上端の外側エッジでの支持が不良となり、電磁リレーの特性に異常を来すことがわかった。本発明の課題は、落下等の大きな衝撃が加わった時、接極子が飛び出すこともなく特性の異常が生じないようにした電磁リレーを提供することである。
【0006】
【課題を解決するための手段】
上記課題は本発明により、
ヨーク上端エッジに揺動可能にヒンジ支持されたL字形接極子と、
コイルボビン上部のプラスチック絶縁体上に支持され、前記L字形接極子の折曲部を前記ヨーク上端の外側エッジに圧接し、かつ衝撃が加わった際生ずる前記接極子の飛出し力を制動する板ばねとを有する電磁リレーにおいて
前記板ばねは、前記接極子の折曲部表面を前記板ばねの中間部で支持すると共に、前記折曲部表面から接極子へのカード取付け側に向かって離間した接極子表面の個所において前記板ばねの自由端で前記接極子を支持することにより解決される。
【0007】
上述の板ばねの、接極子を折曲部から、接極子へのカード取付け側に向かって離間した個所での圧接支持する際、圧接支持個所は、板ばねが面接触となるように支持するようにすることも、線接触支持または点接触支持にすることもできる。
【0008】
また補助的に板ばねの運動を制止する構造をケースに設けると、一層接極子をヨーク上端の外側エッジに安定に圧接支持できる。
【0009】
【発明の実施の形態】
次に本発明を実施の形態に基づき図1および図2を用いて詳細に説明する。なお図1および図2において、図3で説明したのと同様な部分には同一の参照番号を付けて説明する。
【0010】
図1において、図3の従来の電磁リレーと異なっているのは板ばねの構造である。この場合、電磁リレーの非作動時において既に板ばね15が、L字形接極子5をヨーク4の上端エッジに接極子の折曲部表面を、圧接しているほかに、接極子の折曲部と接極子へのカード8の取付け方向に離間した個所16で接極子に当接している点である。図1では、板ばね15は線状に接触しているが、当接部を面接触となるよう、板ばね先端を平坦に形成することもできる。
【0011】
本願発明では、コイル6が励磁された場合、鉄心3は接極子5を吸着し、接極子はヨーク4の上端の外側のエッジを中心に反時計回りに旋回される。その際接極子5は、板ばね15によって折曲部がヨーク4の上端の外側エッジに対して圧接していると同時に、接極子の折曲部からカード取付け位置側に離間した個所16で、接極子の反時計回り運動に抗してばね力が加わる。それ故、接極子5からカード8を介して可動接片に対する過大な押圧力が加わるのを防止することができる。
【0012】
それと同時、コイル2への励磁電流を遮断した際、可動接片のカード8を介して加わる弾性力と、板ばね15の接極子の折曲部からカード側に離間した個所16で接極子に作用する弾性力とが、接極子の復旧位置への復帰力として作用し、電磁リレーの復旧速度を高くすることができ、接点の焼損が生じ難くなる。しかも落下等の大きな衝撃が加わっても、接極子は板ばね5によってその折曲部と、折曲部よりカード8の取付け側へ離れた2個所で押圧保持されているので、接極子への位置ずれ等による電磁リレーの特性変化を生じないようにすることもできる。
【0013】
図2の実施例では図1に示す構成のほかに、板ばね5が落下等の大きな衝撃力が加わった際に、板ばね5をプラスチックケース17の突起部18によって支持するように構成されている。従って、衝撃等による大きな接極子の飛出し力を確実に受け止めることができ、板ばね15の変形を防止できる。従って、接極子5からカード8を介して可動接片を押圧移動させる力を制限することができ、固定接点に可動接点による過度に大きな接触圧が加わるのを防止することができる。
【0014】
【発明の効果】
本発明によれば、落下等の非常に大きな衝撃力により接極子に大きな揺動力が加わったときも、接極子を折曲部と、折曲部からカード取付け側へ離間した個所で板ばねにより支持しているので、板ばねの接極子の飛び出し力を制動すると共に電磁リレーの復旧速度を速くでき、アーク等による接点の損傷を少なくすることができる。
【0015】
さらに、プラスチックケースに設けた突起部により板ばねを支えることにより、その接極子の飛び出し力を、板ばねのばね力のほかに板ばねのプラスチックケースの突起部の板ばねの支持力とにより、一層確実に受け止めることができ、可動接片への過大な力が加わるのを防止することができる。
【図面の簡単な説明】
【図1】本発明の電磁リレーのプラスチックケースを取外して、一部を切欠して示す側面略図である。
【図2】本発明の電磁リレーの別の実施例の一部を切欠して示す側面略図である。
【図3】従来の電磁リレーのプラスチックケースを取外して、一部を切欠して示す側面略図である。
【符号の説明】
1 プラスチックベース
2 コイルボビン
3 鉄心
4 L字形ヨーク
5 接極子
6 コイル
7 コイル端子
8 カード
9 可動接点
10 可動接片
11 固定接片
12 固定接点
13 可動接片端子
14 固定接片端子
15 板ばね
16 当接個所
17 プラスチックケース
18 プラスチックケース突起部
[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an electromagnetic relay in which a bent portion of an L-shaped armature is hinge-supported at the upper end of a yoke so as to be swingable.
[0002]
[Prior art]
This type of conventional electromagnetic relay is configured as shown in FIG. That is, the iron core 3 is mounted in the central hole of the plastic base and preferably the coil bobbin 2 formed integrally with the plastic base 1, and the lower end of the iron core 3 is connected to the short leg of the L-shaped yoke 4. When the iron core is magnetized by exciting the coil, a substantially L-shaped armature 5 attracted to the upper end of the iron core is hingedly supported on the upper end of the yoke 4.
[0003]
Reference numeral 6 denotes a coil, and a terminal of the coil is supported on the plastic base 1. A card 8 connects the armature 5 and a movable contact piece 10 having a movable contact 9. Reference numeral 11 denotes a fixed contact piece having a fixed contact 12, and 13 and 14 are fixed to the plastic pace 1 by terminals of a movable contact piece and a fixed contact piece, respectively. Reference numeral 15 denotes a leaf spring that presses and supports the armature on the upper end edge portion of the yoke and brakes the movement of the armature during the contact closing motion by the armature.
[0004]
In the electromagnetic relay having the above-described configuration, when an exciting current is supplied to the coil 6, the armature 5 separated from the upper end surface of the iron core 3 rotates around the upper end edge portion of the yoke 4 and is movable via the card 8. The movable contact 9 is pressed against the fixed contact on the fixed contact 11 by pressing the contact piece 10.
[0005]
[Problems to be solved by the invention]
When a large impact force such as a drop is applied in the above-described conventional electromagnetic relay, the outward force of the armature becomes larger than the force of pressing the armature of the leaf spring 15 to the outer edge of the upper end of the yoke, It was found that the leaf spring was deformed, the support at the outer edge of the upper end of the yoke was poor, and the characteristics of the electromagnetic relay were abnormal. An object of the present invention is to provide an electromagnetic relay in which an armature does not pop out and a characteristic abnormality does not occur when a large impact such as dropping is applied.
[0006]
[Means for Solving the Problems]
The above problem is solved by the present invention.
An L-shaped armature that is swingably supported by the upper edge of the yoke;
It is supported on the plastic insulator of the coil bobbin top plate spring the pressure contact the bent portion to the outer edges of the yoke upper end of the L-shaped armature, and to brake the jumping force of the armature caused when an impact is applied in the electromagnetic relay to have a door,
The plate spring, said bent portion surface of the armature while supporting the intermediate portion of the leaf spring, in place of the card mounting side spaced armature surface toward to armature from the bent portion surface It is solved by a Turkey to support the armature at the free end of the leaf spring.
[0007]
When the armature of the above-described leaf spring is supported by pressure contact at a location spaced from the bent portion toward the card mounting side to the armature, the pressure contact support portion supports the leaf spring so as to be in surface contact. It can also be a line contact support or a point contact support.
[0008]
Further, if the case is provided with a structure for restraining the movement of the leaf spring as an auxiliary, the single-layer armature can be stably pressed against and supported by the outer edge of the upper end of the yoke.
[0009]
DETAILED DESCRIPTION OF THE INVENTION
Next, the present invention will be described in detail with reference to FIG. 1 and FIG. In FIGS. 1 and 2, the same parts as those described with reference to FIG.
[0010]
In FIG. 1, what is different from the conventional electromagnetic relay of FIG. 3 is the structure of a leaf spring. In this case, when the electromagnetic relay is not in operation, the leaf spring 15 already presses the surface of the bent portion of the armature against the upper edge of the yoke 4 with the L-shaped armature 5 in addition to the bent portion of the armature. And a point 16 that is spaced apart in the mounting direction of the card 8 to the armature. In FIG. 1, the leaf spring 15 is in linear contact, but the tip of the leaf spring can be formed flat so that the contact portion is in surface contact.
[0011]
In the present invention, when the coil 6 is excited, the iron core 3 attracts the armature 5 and the armature is turned counterclockwise around the outer edge of the upper end of the yoke 4. At that time, the armature 5 has a bent portion pressed against the outer edge of the upper end of the yoke 4 by the leaf spring 15, and at the same time at a portion 16 spaced from the bent portion of the armature to the card mounting position side. A spring force is applied against the counterclockwise movement of the armature. Therefore, it is possible to prevent an excessive pressing force from being applied to the movable contact piece from the armature 5 via the card 8.
[0012]
At the same time, when the exciting current to the coil 2 is cut off, the elastic force applied through the card 8 of the movable armature and the armature 16 at the portion 16 spaced from the bent portion of the armature of the leaf spring 15 toward the card side. The acting elastic force acts as a return force of the armature to the recovery position, so that the recovery speed of the electromagnetic relay can be increased, and the contact burnout hardly occurs. Moreover, even if a large impact such as dropping is applied, the armature is pressed and held by the leaf spring 5 at its bent portion and at two locations away from the bent portion to the card 8 mounting side. It is also possible to prevent the characteristics of the electromagnetic relay from changing due to misalignment or the like.
[0013]
In the embodiment shown in FIG. 2, in addition to the configuration shown in FIG. 1, the plate spring 5 is supported by the projection 18 of the plastic case 17 when a large impact force such as dropping is applied. Yes. Therefore, it is possible to reliably receive a large armature jumping force due to an impact or the like, and to prevent the leaf spring 15 from being deformed. Accordingly, it is possible to limit the force for pressing and moving the movable contact piece from the armature 5 via the card 8, and it is possible to prevent an excessively large contact pressure from being applied to the fixed contact by the movable contact.
[0014]
【The invention's effect】
According to the present invention, even when a large swinging force is applied to the armature due to a very large impact force such as a drop, the armature is bent by the leaf spring at a location where the armature is separated from the bent portion to the card mounting side. Since it is supported, the jumping force of the armature of the leaf spring can be braked, the recovery speed of the electromagnetic relay can be increased, and damage to the contact due to arc or the like can be reduced.
[0015]
Furthermore, by supporting the leaf spring by the protrusion provided on the plastic case, the jumping force of the armature is not only due to the spring force of the leaf spring, but also due to the support force of the leaf spring of the protrusion of the plastic case of the leaf spring. It can be received more reliably, and an excessive force applied to the movable contact piece can be prevented.
[Brief description of the drawings]
FIG. 1 is a schematic side view of a magnetic relay according to the present invention with a plastic case removed and a part cut away.
FIG. 2 is a schematic side view showing a part of another embodiment of the electromagnetic relay according to the present invention.
FIG. 3 is a schematic side view showing a conventional electromagnetic relay with a plastic case removed and partially cut away.
[Explanation of symbols]
Reference Signs List 1 plastic base 2 coil bobbin 3 iron core 4 L-shaped yoke 5 armature 6 coil 7 coil terminal 8 card 9 movable contact 10 movable contact 11 fixed contact 12 fixed contact 13 movable contact terminal 14 fixed contact terminal 15 leaf spring 16 Contact 17 Plastic case 18 Plastic case protrusion

Claims (3)

ヨーク上端エッジに揺動可能にヒンジ支持されたL字形接極子と、
コイルボビン上部のプラスチック絶縁体上に支持され、前記L字形接極子の折曲部を前記ヨーク上端の外側エッジに圧接し、かつ衝撃が加わった際生ずる前記接極子の飛出し力を制動する板ばねとを有する電磁リレーにおいて
前記板ばねは、前記接極子の折曲部表面を前記板ばねの中間部で支持すると共に、前記折曲部表面から接極子へのカード取付け側に向かって離間した接極子表面の個所において前記板ばねの自由端で前記接極子を支持することを特徴とする電磁リレー。
An L-shaped armature that is swingably supported by the upper edge of the yoke;
It is supported on the plastic insulator of the coil bobbin top plate spring the pressure contact the bent portion to the outer edges of the yoke upper end of the L-shaped armature, and to brake the jumping force of the armature caused when an impact is applied in the electromagnetic relay to have a door,
The plate spring, said bent portion surface of the armature while supporting the intermediate portion of the leaf spring, in place of the card mounting side spaced armature surface toward to armature from the bent portion surface electromagnetic relay characterized by the Turkey to support the armature at the free end of the leaf spring.
前記板ばねの接極子の折曲部から離間した表面との当接個所が点状、線状又は面状であることを特徴とする請求項1に記載の電磁リレー。2. The electromagnetic relay according to claim 1, wherein a contact point with a surface separated from a bent portion of the armature of the leaf spring is a dot shape, a linear shape, or a planar shape. 衝撃力が作用したとき前記板ばねの運動を制止する構造部がケースに設けられていることを特徴とする請求項1又は2に記載の電磁リレー。3. The electromagnetic relay according to claim 1, wherein the case is provided with a structural portion that stops the movement of the leaf spring when an impact force is applied.
JP11412799A 1999-04-21 1999-04-21 Electromagnetic relay Expired - Fee Related JP4187868B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11412799A JP4187868B2 (en) 1999-04-21 1999-04-21 Electromagnetic relay

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11412799A JP4187868B2 (en) 1999-04-21 1999-04-21 Electromagnetic relay

Publications (2)

Publication Number Publication Date
JP2000306482A JP2000306482A (en) 2000-11-02
JP4187868B2 true JP4187868B2 (en) 2008-11-26

Family

ID=14629822

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11412799A Expired - Fee Related JP4187868B2 (en) 1999-04-21 1999-04-21 Electromagnetic relay

Country Status (1)

Country Link
JP (1) JP4187868B2 (en)

Also Published As

Publication number Publication date
JP2000306482A (en) 2000-11-02

Similar Documents

Publication Publication Date Title
US4926150A (en) Electromagnetic relay
JP2006173125A (en) Electromagnetic relay
US4951017A (en) Electromagnetic relay
JP4187868B2 (en) Electromagnetic relay
JP2552418B2 (en) Polarized relay
JP4181269B2 (en) Electromagnetic relay
JP4412819B2 (en) Electromagnetic relay
JP4953828B2 (en) Electromagnet device and electromagnetic relay
EP0016196B1 (en) A magnetic latch device for a clapper type contactor
JP5025321B2 (en) Electromagnetic relay
JP5525672B2 (en) Electromagnetic relay yoke structure
US3187141A (en) Armature mounting means for electromagnetic relays
JPS6118602Y2 (en)
CN216412970U (en) Contact switch assembly and switching device
JP3058668U (en) Electromagnetic relay
JPH0333940U (en)
JP4855273B2 (en) Electromagnet device and electromagnetic relay
JP2022086208A (en) Electromagnetic relay
KR100304920B1 (en) fixing structure for moving core of magnetic contactor
CN114023603A (en) Contact switch assembly and switching device
JPH0512903Y2 (en)
JPH0228583Y2 (en)
JP2007200637A (en) Electromagnetic relay
JPH076600Y2 (en) Movable spring support device for small relays
JPH06267389A (en) Electromagnetic relay

Legal Events

Date Code Title Description
A621 Written request for application examination

Free format text: JAPANESE INTERMEDIATE CODE: A621

Effective date: 20060407

A711 Notification of change in applicant

Free format text: JAPANESE INTERMEDIATE CODE: A711

Effective date: 20060811

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20080514

A521 Written amendment

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20080806

TRDD Decision of grant or rejection written
A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

Effective date: 20080827

A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

A61 First payment of annual fees (during grant procedure)

Free format text: JAPANESE INTERMEDIATE CODE: A61

Effective date: 20080910

R150 Certificate of patent or registration of utility model

Free format text: JAPANESE INTERMEDIATE CODE: R150

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20110919

Year of fee payment: 3

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20110919

Year of fee payment: 3

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20120919

Year of fee payment: 4

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20130919

Year of fee payment: 5

LAPS Cancellation because of no payment of annual fees