JP3351840B2 - Electromagnetic contactor - Google Patents

Electromagnetic contactor

Info

Publication number
JP3351840B2
JP3351840B2 JP01067293A JP1067293A JP3351840B2 JP 3351840 B2 JP3351840 B2 JP 3351840B2 JP 01067293 A JP01067293 A JP 01067293A JP 1067293 A JP1067293 A JP 1067293A JP 3351840 B2 JP3351840 B2 JP 3351840B2
Authority
JP
Japan
Prior art keywords
iron core
rubber
movable
vibration
movable iron
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
JP01067293A
Other languages
Japanese (ja)
Other versions
JPH06223693A (en
Inventor
勉 下村
紀公 梶
広海 西村
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.)
Panasonic Electric Works Co Ltd
Original Assignee
Matsushita Electric Works Ltd
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 Matsushita Electric Works Ltd filed Critical Matsushita Electric Works Ltd
Priority to JP01067293A priority Critical patent/JP3351840B2/en
Publication of JPH06223693A publication Critical patent/JPH06223693A/en
Application granted granted Critical
Publication of JP3351840B2 publication Critical patent/JP3351840B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Landscapes

  • Electromagnets (AREA)

Description

【発明の詳細な説明】DETAILED DESCRIPTION OF THE INVENTION

【0001】[0001]

【産業上の利用分野】本発明は、電磁接触器に関するも
のである。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electromagnetic contactor.

【0002】[0002]

【従来の技術】図8は従来の電磁接触器の断面図を示
し、図9は要部拡大断面図を示している。図8及び図9
において、中空コイルボビン1には電磁コイル2が巻装
され、コイルボビン1の外周に取り付けられる2個以上
の継鉄(コ字型継鉄5と平板継鉄6)のうち、平板継鉄
6には、固定鉄心7がかしめられて固定されている。
2. Description of the Related Art FIG. 8 is a sectional view of a conventional electromagnetic contactor, and FIG. 9 is an enlarged sectional view of a main part. 8 and 9
, The electromagnetic coil 2 is wound around the hollow coil bobbin 1, and of the two or more yoke (U-shaped yoke 5 and plate yoke 6) attached to the outer periphery of the coil bobbin 1, the plate yoke 6 The fixed iron core 7 is caulked and fixed.

【0003】電磁コイル2を遮断する時、固定接触子1
5と可動接触子14は復帰バネ9によって離れる。その
結果、一端が可動接触子14に連接されたシャフト10
がレバー11を押し下げ、可動接点12と固定接点13
は開放され、可動鉄心4はケース12の平板状の防振ゴ
ム20に当接する。電磁コイル2に通電の時、可動鉄心
4は固定鉄心7に吸引される。その結果、プランジャシ
ャフト3はレバー11を押し下げ、レバー11の球状部
11aがシャフト10を押し、可動接触子14が復帰バ
ネ9と接圧バネ8のバネ負荷に抗して可動接触子14に
取り付けられた可動接点12と固定接点13を接触させ
る。尚、16はスプリング受けである。
When the electromagnetic coil 2 is cut off, the fixed contact 1
5 and the movable contact 14 are separated by the return spring 9. As a result, the shaft 10 having one end connected to the movable contact 14
Pushes down the lever 11, and the movable contact 12 and the fixed contact 13
Is opened, and the movable iron core 4 comes into contact with the flat anti-vibration rubber 20 of the case 12. When the electromagnetic coil 2 is energized, the movable core 4 is attracted to the fixed core 7. As a result, the plunger shaft 3 pushes down the lever 11, the spherical portion 11a of the lever 11 pushes the shaft 10, and the movable contact 14 is attached to the movable contact 14 against the spring load of the return spring 9 and the contact pressure spring 8. The movable contact 12 and the fixed contact 13 are brought into contact with each other. Reference numeral 16 denotes a spring receiver.

【0004】[0004]

【発明が解決しようとする課題】かかる従来例におい
て、可動鉄心4の開離時(電磁石オフ時)、固定接触子
15を可動接触子14は復帰バネ9によって離れる。そ
して、一端が可動接触子14に連結されたシャフト10
がレバー11を押し下げ、可動鉄心4が固定鉄心7と開
離する。
In the conventional example, when the movable core 4 is separated (when the electromagnet is off), the movable contact 14 is separated from the fixed contact 15 by the return spring 9. The shaft 10 having one end connected to the movable contact 14
Pushes down the lever 11, and the movable core 4 is separated from the fixed core 7.

【0005】しかし、可動鉄心4がケース12の底面に
設置されている平板防振ゴム20によって可動鉄心4の
リバウンドを吸収しきれず、可動鉄心4のプランジャシ
ャフト3はレバー11を押し上げ、可動接触子14が復
帰位置を通り越して、接点のリバウンドが大きくなる危
険性があった。図10は従来例の接点リバウンドの測定
図を示し、可動鉄心4のリバウンドは0.23mmであ
る。
However, the movable core 4 cannot absorb the rebound of the movable core 4 by the flat rubber vibration isolating rubber 20 installed on the bottom of the case 12, and the plunger shaft 3 of the movable core 4 pushes up the lever 11, and the movable contact 14 passed the return position, and there was a risk that contact rebound would increase. FIG. 10 shows a measurement diagram of the contact rebound of the conventional example, and the rebound of the movable iron core 4 is 0.23 mm.

【0006】本発明は、上述の点に鑑みて提供したもの
であって、電磁石遮断時の可動鉄心のリバウンドを抑え
ることを目的とした電磁接触器を提供するものである。
The present invention has been made in view of the above points, and has as its object the provision of an electromagnetic contactor for suppressing rebound of a movable iron core when an electromagnet is shut off.

【0007】[0007]

【課題を解決するための手段】本発明は、コイルの通電
時に固定鉄心に可動鉄心が復帰バネのバネ力に抗して吸
引され、コイルの通電遮断時に復帰バネのバネ力にて開
放されてケースの底面に当たる電磁接触器において、上
記可動鉄心が当たるケースの底面に防振ゴムを配設し、
この防振ゴムの上面に複数個の突起を突設すると共に、
それら複数個の突起に対応した複数個の凹部を防振ゴム
の下面にそれぞれ形成し、そしてそれら複数個の凹部の
各々を外部に連通させる溝を防振ゴムの下面に形成した
ものである。
According to the present invention, the movable iron core is attracted to the fixed iron core against the spring force of the return spring when the coil is energized, and is released by the spring force of the return spring when the coil is cut off. In an electromagnetic contactor that hits the bottom of the case, an anti-vibration rubber is placed on the bottom of the case where the movable iron core hits ,
Along with projecting a plurality of protrusions on the upper surface of this vibration isolating rubber ,
Anti-vibration rubber is used for a plurality of recesses corresponding to the plurality of protrusions.
Formed on the lower surface of each of the plurality of concave portions.
Grooves are formed on the lower surface of the vibration-isolating rubber to communicate each with the outside .

【0008】[0008]

【作用】本発明によれば、コイルの通電遮断時に、可動
鉄心の底部が防振ゴムの突起に当たり、突起がつぶれる
ことで、可動鉄心の反発を防ぐダンパー効果が生じる。
これにより、従来の単なる平板防振ゴムを使用していた
時よりも、突起付きの防振ゴムを用いたことで、可動鉄
心のリバウンドを小さくすることができる。
According to the present invention, when the energization of the coil is cut off, the bottom of the movable core hits the projection of the vibration isolating rubber, and the projection is crushed, thereby producing a damper effect for preventing repulsion of the movable core.
This makes it possible to reduce the rebound of the movable iron core by using the vibration-proof rubber with projections as compared with the case where the conventional simple flat rubber vibration-proof rubber is used.

【0009】[0009]

【実施例】以下、本発明の実施例を図面を参照して説明
する。尚、電磁接触器の全体の構成は従来と同じなの
で、同じ部分の説明は省略し、本発明の要旨の部分につ
いて詳述する。すなわち、図1及び図2に示すように、
ケース12の底面に設置する防振ゴム21は円板状に形
成されており、その上面には複数個の突起22が円周状
に形成されている。
Embodiments of the present invention will be described below with reference to the drawings. Since the entire configuration of the electromagnetic contactor is the same as that of the related art, the description of the same parts will be omitted, and the gist of the present invention will be described in detail. That is, as shown in FIGS. 1 and 2,
The anti-vibration rubber 21 installed on the bottom surface of the case 12 is formed in a disk shape, and a plurality of protrusions 22 are formed on the upper surface thereof in a circumferential shape.

【0010】図3は防振ゴム21の拡大詳細図を示し、
防振ゴム21の突起22に対応した下面には凹部23が
形成されている。更に、各凹部23と外部と連通した溝
24が防振ゴム21の下面にそれぞれ放射状に形成され
ている。今、電磁石オフ、つまり電磁コイル2への通電
を遮断した時、可動鉄心4は従来と同様に復帰バネ9に
より開放されるが、可動鉄心4は防振ゴム21の突起2
2に当たる。そして、可動鉄心4が防振ゴム21に当た
ることで、突起22はつぶれて、凹部23の中の空気が
溝24を通り抜けることで、防振効果を生ずるものであ
る。
FIG. 3 shows an enlarged detailed view of the vibration-proof rubber 21.
A concave portion 23 is formed on the lower surface corresponding to the projection 22 of the vibration-proof rubber 21. Further, grooves 24 communicating with the respective recesses 23 and the outside are formed radially on the lower surface of the vibration-proof rubber 21. Now, when the electromagnet is turned off, that is, when the energization to the electromagnetic coil 2 is cut off, the movable core 4 is opened by the return spring 9 as in the conventional case.
Two hits. When the movable iron core 4 comes into contact with the vibration isolating rubber 21, the protrusion 22 is crushed and the air in the concave portion 23 passes through the groove 24, thereby producing a vibration isolating effect.

【0011】これにより、可動鉄心4のリバウンドを小
さくすることができる。図4は本発明の実施例の防振ゴ
ム21を用いた場合のリバウンド測定結果であり、図か
ら明らかなように、可動鉄心4のリバウンドは0.23
mmである。従って、従来、可動鉄心4のリバウンドが
0.54mmあった場合と比べて、可動鉄心4のリバウ
ンドを低減することができるものである。
As a result, the rebound of the movable iron core 4 can be reduced. FIG. 4 shows a rebound measurement result when the vibration isolating rubber 21 of the embodiment of the present invention is used. As is apparent from the drawing, the rebound of the movable iron core 4 is 0.23.
mm. Therefore, the rebound of the movable core 4 can be reduced as compared with the conventional case where the rebound of the movable core 4 is 0.54 mm.

【0012】(実施例2)図5及び図6は実施例2を示
し、可動鉄心4の底面側に開口する穴31を形成し、こ
の穴31内に円柱状の防振ゴム32を圧入したものであ
る。本実施例では図6に示すように、ケース12の底面
の防振ゴムを除いているが、先の実施例のように防振ゴ
ム21を設置し、且つ可動鉄心4内に防振ゴム31を圧
入して構成してもよい。この場合は、可動鉄心4のリバ
ウンドを、より小さくすることができる。なお、防振ゴ
ム31のみの場合でも、可動鉄心4のリバウンドを小さ
くすることができることは言うまでもない。
(Embodiment 2) FIGS. 5 and 6 show an embodiment 2, in which a hole 31 opening on the bottom side of the movable iron core 4 is formed, and a columnar vibration-proof rubber 32 is press-fitted into this hole 31. Things. In this embodiment, as shown in FIG. 6, the vibration isolating rubber on the bottom surface of the case 12 is removed. However, as in the previous embodiment, the vibration isolating rubber 21 is provided, and the vibration isolating rubber 31 is provided in the movable iron core 4. May be press-fitted. In this case, the rebound of the movable iron core 4 can be made smaller. Needless to say, the rebound of the movable iron core 4 can be reduced even when only the vibration-proof rubber 31 is used.

【0013】(実施例3)実施例3を図7に示す。本実
施例では、実施例1の可動鉄心4の上部にテーパ部を形
成し、斜線部分で示す磁極面積を、実施例1の可動鉄心
4の上面の磁極面積と同じにしたものである。つまり、
図7の場合は、磁路として負必要な部分をカットして、
磁極面積を同じくし、可動鉄心4の直径を小さくしたも
のである。
(Embodiment 3) Embodiment 3 is shown in FIG. In the present embodiment, a tapered portion is formed on the upper part of the movable iron core 4 of the first embodiment, and the magnetic pole area indicated by hatching is the same as the magnetic pole area of the upper surface of the movable iron core 4 of the first embodiment. That is,
In the case of FIG. 7, the part required negatively as a magnetic path is cut,
The magnetic pole area is the same, and the diameter of the movable iron core 4 is reduced.

【0014】これにより、可動鉄心4を軽量化すること
ができる。なお、可動鉄心4にテーパ部33を形成する
ことは、実施例2の場合にも適用できるものである。ま
た、実施例2においては、実施例3に示すようなテーパ
付き可動鉄心4よりも、可動鉄心4の直径を大とするこ
とができ、そのため、コイルボビン1の内径を大とする
ことができ、コイルボビン1に巻装されるコイル線の巻
数を減らすことができ、銅量ダウンによるコストダウン
と、電磁石部軽量化を図ることができる。
Accordingly, the weight of the movable core 4 can be reduced. The formation of the tapered portion 33 in the movable iron core 4 is applicable to the second embodiment. Further, in the second embodiment, the diameter of the movable iron core 4 can be made larger than that of the tapered movable iron core 4 as shown in the third embodiment, so that the inner diameter of the coil bobbin 1 can be made larger. The number of turns of the coil wire wound around the coil bobbin 1 can be reduced, so that the cost can be reduced by reducing the amount of copper, and the weight of the electromagnet can be reduced.

【0015】[0015]

【発明の効果】本発明によれば、コイルの通電時に固定
鉄心に可動鉄心が復帰バネのバネ力に抗して吸引され、
コイルの通電遮断時に復帰バネのバネ力にて開放されて
ケースの底面に当たる電磁接触器において、上記可動鉄
心が当たるケースの底面に防振ゴムを配設し、この防振
ゴムの上面に複数個の突起を突設すると共に、それら複
数個の突起に対応した複数個の凹部を防振ゴムの下面に
それぞれ形成し、そしてそれら複数個の凹部の各々を外
部に連通させる溝を防振ゴムの下面に形成したものであ
るから、コイルの通電遮断時に、可動鉄心の底部が防振
ゴムの突起に当たり、突起がつぶれることで、可動鉄心
の反発を防ぐダンパー効果が生じる。これにより、従来
の単なる平板防振ゴムを使用していた時よりも、突起付
きの防振ゴムを用いたことで、可動鉄心のリバウンドを
小さくすることができる効果を奏するものである。
According to the present invention, when the coil is energized, the movable iron core is attracted to the fixed iron core against the spring force of the return spring,
In an electromagnetic contactor that is opened by the spring force of the return spring when the coil is de-energized and hits the bottom of the case, an anti-vibration rubber is arranged on the bottom of the case where the movable iron core hits. together, they double to project the projection
Multiple recesses corresponding to several projections on the bottom of the rubber
Respectively, and remove each of the plurality of recesses.
Since the groove communicating with the part is formed on the lower surface of the vibration isolating rubber, the damper that prevents the repulsion of the movable core when the coil energization is cut off, the bottom of the movable core hits the projection of the vibration isolating rubber and the projection is crushed. The effect occurs. Thus, the use of the vibration-proof rubber with projections makes it possible to reduce the rebound of the movable iron core, as compared with the case where the conventional simple flat rubber vibration-proof rubber is used.

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

【図1】本発明の実施例の要部分解斜視図である。FIG. 1 is an exploded perspective view of a main part of an embodiment of the present invention.

【図2】同上の電磁接触器全体の断面図である。FIG. 2 is a sectional view of the entire electromagnetic contactor of the above.

【図3】(a)〜(d)は同上の防振ゴムの平面図、断
面図、底面図、及び図3(b)〜のA部の拡大断面図で
ある。
FIGS. 3A to 3D are a plan view, a sectional view, a bottom view, and an enlarged sectional view of a portion A in FIGS.

【図4】同上の可動鉄心のリバウンドの測定結果を示す
図である。
FIG. 4 is a diagram showing a measurement result of rebound of the movable iron core according to the first embodiment.

【図5】実施例2の要部分解斜視図である。FIG. 5 is an exploded perspective view of a main part of the second embodiment.

【図6】同上の電磁接触器の断面図である。FIG. 6 is a cross-sectional view of the electromagnetic contactor of the above.

【図7】同上の実施例3の可動鉄心の斜視図である。FIG. 7 is a perspective view of a movable core according to the third embodiment.

【図8】従来例の電磁接触器の断面図である。FIG. 8 is a sectional view of a conventional electromagnetic contactor.

【図9】同上の要部拡大断面図である。FIG. 9 is an enlarged sectional view of a main part of the above.

【図10】従来例の可動鉄心のリバウンドの測定結果を
示す図である。
FIG. 10 is a diagram showing a measurement result of rebound of a movable iron core of a conventional example.

【符号の説明】[Explanation of symbols]

1 コイルボビン 2 電磁コイル 4 可動鉄心 5 コ字型継鉄 6 平板継鉄 7 固定鉄心 9 復帰バネ 12 ケース 21 防振ゴム 22 突起 REFERENCE SIGNS LIST 1 coil bobbin 2 electromagnetic coil 4 movable core 5 U-shaped yoke 6 plate yoke 7 fixed iron core 9 return spring 12 case 21 anti-vibration rubber 22 protrusion

───────────────────────────────────────────────────── フロントページの続き (56)参考文献 特開 昭52−53275(JP,A) 実開 昭60−65953(JP,U) 実開 昭60−174212(JP,U) 実公 昭55−55481(JP,Y1) 実公 昭49−2853(JP,Y1) (58)調査した分野(Int.Cl.7,DB名) H01H 50/30 H01F 7/16 F16F 7/00 - 7/14 F16F 9/02 - 9/05 ──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-52-53275 (JP, A) JP-A-60-65953 (JP, U) JP-A-60-174212 (JP, U) 55481 (JP, Y1) Jikken 49-2852 (JP, Y1) (58) Fields investigated (Int. Cl. 7 , DB name) H01H 50/30 H01F 7/16 F16F 7/00-7/14 F16F 9/02-9/05

Claims (1)

(57)【特許請求の範囲】(57) [Claims] 【請求項1】 コイルの通電時に固定鉄心に可動鉄心が
復帰バネのバネ力に抗して吸引され、コイルの通電遮断
時に復帰バネのバネ力にて開放されてケースの底面に当
たる電磁接触器において、上記可動鉄心が当たるケース
の底面に防振ゴムを配設し、この防振ゴムの上面に複数
個の突起を突設すると共に、それら複数個の突起に対応
した複数個の凹部を防振ゴムの下面にそれぞれ形成し、
そしてそれら複数個の凹部の各々を外部に連通させる溝
を防振ゴムの下面に形成したことを特徴とする電磁接触
器。
An electromagnetic contactor, wherein a movable iron core is attracted to a fixed iron core when a coil is energized against a spring force of a return spring, and is released by a spring force of a return spring when the coil is de-energized and hits a bottom surface of a case. , disposed vibration isolation rubber bottom surface of the case in which the movable iron core strikes, as well as projecting a plurality of projections on the upper surface of the rubber vibration isolator, corresponding to those plurality of projections
Formed on the lower surface of the vibration-proof rubber, respectively,
And a groove for communicating each of the plurality of recesses to the outside.
An electromagnetic contactor characterized in that is formed on the lower surface of a vibration isolating rubber .
JP01067293A 1993-01-26 1993-01-26 Electromagnetic contactor Expired - Fee Related JP3351840B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP01067293A JP3351840B2 (en) 1993-01-26 1993-01-26 Electromagnetic contactor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP01067293A JP3351840B2 (en) 1993-01-26 1993-01-26 Electromagnetic contactor

Publications (2)

Publication Number Publication Date
JPH06223693A JPH06223693A (en) 1994-08-12
JP3351840B2 true JP3351840B2 (en) 2002-12-03

Family

ID=11756749

Family Applications (1)

Application Number Title Priority Date Filing Date
JP01067293A Expired - Fee Related JP3351840B2 (en) 1993-01-26 1993-01-26 Electromagnetic contactor

Country Status (1)

Country Link
JP (1) JP3351840B2 (en)

Also Published As

Publication number Publication date
JPH06223693A (en) 1994-08-12

Similar Documents

Publication Publication Date Title
JP4569547B2 (en) Electromagnetic switch
US7859373B2 (en) Contact device
CN103928266B (en) Electromagnetic relay
JP2002021922A (en) Vibration resistant mechanism using magnetic circuit
JPS60206006A (en) Noiseless electromagnet and contactor using such electromagnet
EP1914761B1 (en) Actuator
US4515345A (en) Solenoid valve
JP3351840B2 (en) Electromagnetic contactor
US10916398B2 (en) Electromagnetic relay
US5646588A (en) Stroke elongation device for an electromagnetic actuator
JP3304147B2 (en) solenoid
JPS5831372Y2 (en) electromagnet device
JP2005522176A (en) Linear voice coil actuator as a controllable compression spring by electromagnetic force
JP3134725B2 (en) Electromagnetic solenoid
JP3811835B2 (en) solenoid
JP3663529B2 (en) electromagnet
JP2003007528A (en) Electromagnetic device
JP2602370Y2 (en) solenoid
JPH0112366Y2 (en)
JPH10246283A (en) Vibration damper
JPS6328570Y2 (en)
JPH0883711A (en) Solenoid
JPH0214164Y2 (en)
JPH1140420A (en) Electromagnet
JPH0631637Y2 (en) Release type electromagnetic device

Legal Events

Date Code Title Description
A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

Effective date: 20020827

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

Free format text: PAYMENT UNTIL: 20080920

Year of fee payment: 6

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

Free format text: PAYMENT UNTIL: 20080920

Year of fee payment: 6

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

Free format text: PAYMENT UNTIL: 20090920

Year of fee payment: 7

S533 Written request for registration of change of name

Free format text: JAPANESE INTERMEDIATE CODE: R313533

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

Free format text: PAYMENT UNTIL: 20090920

Year of fee payment: 7

R350 Written notification of registration of transfer

Free format text: JAPANESE INTERMEDIATE CODE: R350

LAPS Cancellation because of no payment of annual fees