JPH05274983A - Structure of relay - Google Patents
Structure of relayInfo
- Publication number
- JPH05274983A JPH05274983A JP6887092A JP6887092A JPH05274983A JP H05274983 A JPH05274983 A JP H05274983A JP 6887092 A JP6887092 A JP 6887092A JP 6887092 A JP6887092 A JP 6887092A JP H05274983 A JPH05274983 A JP H05274983A
- Authority
- JP
- Japan
- Prior art keywords
- contact
- support pieces
- pair
- contact spring
- fixed
- 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.)
- Pending
Links
Landscapes
- Electromagnets (AREA)
Abstract
Description
【0001】[0001]
【産業上の利用分野】本発明は、薄板状の接触ばねを用
いて接点切換を行うリレーの構造に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a relay structure for switching contacts using a thin plate contact spring.
【0002】[0002]
【従来の技術】この種のリレーとしては、図4及び図5
に示すような接触ばねブロック18を用いて接点切換を
行うものがある。この接触ばねブロック18は、図4
(b)に示す薄板状の一対の接触ばね25を備え、この
接触ばね25を固定接点部10aに接離させて接点切換
を行う。そして、各接触ばね25は、一対の成形支持片
27,28にインサートする形で取付けられている。こ
の成形支持片27,28は固定部26と共に樹脂成形品
により一体成形されている。2. Description of the Related Art FIGS. 4 and 5 show a relay of this type.
There is one that performs contact switching using a contact spring block 18 as shown in FIG. This contact spring block 18 is shown in FIG.
A pair of thin plate-shaped contact springs 25 shown in (b) are provided, and the contact springs 25 are brought into contact with and separated from the fixed contact portion 10a to perform contact switching. The contact springs 25 are attached to the pair of molded support pieces 27 and 28 so as to be inserted. The molded support pieces 27 and 28 are integrally molded with the fixing portion 26 by a resin molded product.
【0003】[0003]
【発明が解決しようとする課題】かかるリレーの構造で
は、接触ばね25に負荷がかかった状態で高温中に放置
しておくと、成形支持片27,28における接触ばね2
5との取付け部付近に応力が集中し、この付近で温度ス
トレスによる熱クリープを生じて、成形支持片27,2
8に変形をきたすおそれがある。この場合、接触ばね2
5のばね負荷が変化し、リレーの動作特性が変動すると
いう問題があった。In the structure of such a relay, if the contact spring 25 is left under a high temperature with a load applied, the contact spring 2 in the molding support pieces 27, 28 will be described.
Stress concentrates in the vicinity of the mounting portion with 5, and thermal creep occurs due to temperature stress in this vicinity, and the molding support pieces 27, 2
8 may be deformed. In this case, the contact spring 2
There is a problem that the spring load of No. 5 changes and the operating characteristics of the relay change.
【0004】本発明は上述の点に鑑みて為されたもので
あり、その目的とするところは、成形支持片の強度を高
めることにより、接触ばねに負荷がかかった状態で高温
中に放置しても、動作特性の劣化防止を図ることができ
るリレーの構造を提供することにある。The present invention has been made in view of the above points, and it is an object of the present invention to increase the strength of a molding support piece so that the contact spring is left at a high temperature with a load applied. Even so, it is to provide a structure of a relay capable of preventing deterioration of operating characteristics.
【0005】[0005]
【課題を解決するための手段】上記課題を解決するため
に本発明は、電磁石装置により駆動される接触ばねブロ
ックが、固定接点部に接離自在である一対の接触ばね
と、固定部の両側から垂下して上記各接触ばねを個別に
支持する一対の成形支持片と、両成形支持片を相互に連
結する連結部とを備えたものである。In order to solve the above problems, the present invention provides a pair of contact springs in which a contact spring block driven by an electromagnet device is movable into and out of contact with a fixed contact portion, and both sides of the fixed portion. It is provided with a pair of molded support pieces that hang down from each other to individually support the contact springs, and a connecting portion that connects the two molded support pieces to each other.
【0006】[0006]
【作用】本発明によれば、一対の接触ばねを個別に支持
する一対の成形支持片が連結部を介して相互に連結され
ているから、両成形支持片が連結部によって補強され、
成形支持片の強度が高まる。これにより、接触ばねに負
荷がかかった状態で高温中に放置した場合にも、両成形
支持片に熱クリープが発生せず、成形支持片の熱変形を
極力防止できる。According to the present invention, since the pair of molded support pieces for individually supporting the pair of contact springs are connected to each other through the connecting portion, both of the molded support pieces are reinforced by the connecting portion.
The strength of the molded support piece is increased. As a result, even if the contact spring is left under a high temperature with a load applied, thermal creep does not occur in both molding support pieces, and thermal deformation of the molding support pieces can be prevented as much as possible.
【0007】[0007]
【実施例】図1乃至図3に本発明の一実施例を示す。図
3において、本実施例のリレーのハウジング1は、上面
が開口する箱状のボディ1aと、このボディ1aの被嵌
されるカバー1bとで構成されている。ボディ1aの中
央部には、継鉄3と電磁石ブロック2とが収納され、両
側部に接点ブロック4が収納される。1 to 3 show an embodiment of the present invention. In FIG. 3, the relay housing 1 according to the present embodiment includes a box-shaped body 1a having an open upper surface, and a cover 1b to which the body 1a is fitted. A yoke 3 and an electromagnet block 2 are housed in the center of the body 1a, and contact blocks 4 are housed on both sides.
【0008】上記継鉄3として上方に開口する略コ字状
のものを2組備え、互いの継鉄3の側片間に間隔をおい
て鉄心5の端部を介装させる形でボディ1a内に収めら
れる。電磁石ブロック2は、鉄心5と、この鉄心5に同
時成形されたコイルボビン6と、このコイルボビン6に
巻装されたコイル7とで構成されている。ここで、コイ
ルボビン6は鉄心5の両端部を露呈させる形で鉄心5に
同時形成してあり、このコイルボビン1の両側部に形成
された鍔部の4箇所にはコイル端子8が植設され、この
コイル端子8にコイル7の端部が接続される。The body 1a is provided with two sets of substantially U-shaped yokes 3 that open upward as the yokes 3, and the ends of the iron cores 5 are interposed at intervals between the side pieces of the yokes 3. It is housed inside. The electromagnet block 2 is composed of an iron core 5, a coil bobbin 6 simultaneously formed on the iron core 5, and a coil 7 wound around the coil bobbin 6. Here, the coil bobbin 6 is simultaneously formed on the iron core 5 such that both ends of the iron core 5 are exposed, and the coil terminals 8 are planted at four locations on the flanges formed on both sides of the coil bobbin 1, The ends of the coil 7 are connected to the coil terminal 8.
【0009】接点ブロック4は、固定端子10と、この
固定端子10が取り付けられる金属ベース9と、上記固
定端子10の固定接点部となる上端部10a(以下、こ
の上端部を固定接点部と呼ぶ)をシールドするシールド
板11とで構成されている。固定端子10は中央部に絶
縁体12を固着してあり、この絶縁体12の形成部を金
属ベース9の取付孔9a内に装着して金属ベース9に取
り付けられる。また、金属ベース9には複数本のアース
端子13が取り付けられる。シールド板11は、側方か
ら見て上方に開口するコ字状に形成され、底板部11a
に穿孔された挿通孔11bに金属ベース9の上面から突
設された突条9bを挿入し、この突条9bの先端をかし
めて金属ベース9に固定される。The contact block 4 includes a fixed terminal 10, a metal base 9 to which the fixed terminal 10 is attached, and an upper end portion 10a serving as a fixed contact portion of the fixed terminal 10 (hereinafter, this upper end portion is referred to as a fixed contact portion). ) And a shield plate 11 for shielding the The fixed terminal 10 has an insulator 12 fixed to the central portion thereof, and the portion where the insulator 12 is formed is mounted in the mounting hole 9a of the metal base 9 to be mounted on the metal base 9. A plurality of ground terminals 13 are attached to the metal base 9. The shield plate 11 is formed in a U-shape that opens upward when viewed from the side, and has a bottom plate portion 11a.
The protrusion 9b protruding from the upper surface of the metal base 9 is inserted into the insertion hole 11b drilled in the metal base 9, and the tip of the protrusion 9b is caulked to be fixed to the metal base 9.
【0010】上記電磁石ブロック2の上部には接極子ブ
ロック14が取り付けられる。この接極子ブロック14
は、後述する各部材を取り付ける基盤となる絶縁材製の
基体15と、この基体15の両端部に夫々取り付けられ
る一対の接極子16と、この接極子16の間に介装され
る永久磁石17と、基体15の両側部に取り付けられる
接触ばねブロック18と、接極子ブロック14を電磁石
ブロック2上に水平方向で平行移動自在に保持すると共
に、接極子ブロック14に復帰力を付与する平衡ばね1
9とで構成してある。An armature block 14 is attached to the top of the electromagnet block 2. This armature block 14
Is a base body 15 made of an insulating material, which is a base for mounting each member described later, a pair of armatures 16 attached to both ends of the base body 15, and a permanent magnet 17 interposed between the armatures 16. And a contact spring block 18 attached to both sides of the base body 15 and an armature block 14 which are held on the electromagnet block 2 so as to be movable in parallel in the horizontal direction, and at the same time, a balance spring 1 for applying a restoring force to the armature block 14.
9 and 9.
【0011】基体15は、両端部に接極子16及び永久
磁石17を収める収納穴20が形成され、略T字状に形
成された接極子16は下端を基体15の下方に垂下する
形で取り付けられる。ここで、基体15の両端に取り付
けられる永久磁石17は夫々着磁方向を異ならせてあ
り、これにより基体15の両端に夫々取り付けられる一
対の接極子16の極性が逆になるようにしてある。この
基体15の中央部には2つの円柱状の凸リブ21が形成
され、これら凸リブ21を用いて平衡ばね19に基体1
5が取り付けられる。この中央部の両側は幅広に形成
し、この幅広部分の中央に接触ばねブロック18を取り
付けるための挿通孔22が形成されている。The base 15 is formed with storage holes 20 for accommodating the armature 16 and the permanent magnet 17 at both ends, and the armature 16 formed in a substantially T-shape is attached such that the lower end thereof hangs below the base 15. To be Here, the permanent magnets 17 attached to both ends of the base 15 have different magnetizing directions, so that the polarities of the pair of armatures 16 attached to both ends of the base 15 are reversed. Two columnar convex ribs 21 are formed in the central portion of the base body 15. The convex ribs 21 are used to form the balance spring 19 in the base body 1.
5 is attached. Both sides of the central portion are formed wide, and an insertion hole 22 for mounting the contact spring block 18 is formed in the center of the wide portion.
【0012】平衡ばね19は、ボディ1aの長手方向の
一側壁に形成された挿着溝23内に差し込まれる絶縁材
製の支持部材24に対して取り付けられ、基体15の両
側に位置する側片部19aと、夫々の側片部19aの先
端部間を架橋する架橋部19bとからなり、側片部19
aの基部を支持部材24にかしめ固定して取り付けられ
ている。架橋部19bには基体15の凸リブ21を溶着
して基体15を平衡ばね19に取り付けるための挿通孔
19cを形成してある。The balance spring 19 is attached to a support member 24 made of an insulating material, which is inserted into an insertion groove 23 formed in one side wall in the longitudinal direction of the body 1a, and side pieces located on both sides of the base 15. The side piece portion 19a includes a portion 19a and a bridge portion 19b that bridges between the tip portions of the side piece portions 19a.
The base of a is fixed to the support member 24 by caulking and fixed. The bridging portion 19b is formed with an insertion hole 19c for welding the convex rib 21 of the base 15 and attaching the base 15 to the balance spring 19.
【0013】接触ばねブロック18は、図1に示すよう
に、インピーダンスマッチング(75Ωあるいは50
Ω)を図る構造とする切欠きを有する薄板状の接触ばね
25と、下方に開口する略コ字状の絶縁材製の固定部2
6とで構成され、この固定部26の両端から下方へ延び
た一対の成形支持片27,28に2枚の接触ばね25が
インサート成形によって個別に取付けられている。上記
固定部26の上面からは基体15の挿通孔22に挿入さ
れる固定突起26aが突設され、固定突起26aを用い
た溶着により接触ばねブロック18が基体15に取り付
けられる。また、上記成形支持片27,28に夫々取り
付けられる接触ばね25の取付位置はリレーの幅方向に
おいて異ならせてある。The contact spring block 18 has impedance matching (75Ω or 50Ω) as shown in FIG.
Ω) and a thin plate-shaped contact spring 25 having a notch and a fixing portion 2 made of a substantially U-shaped insulating material and opening downward.
6, and two contact springs 25 are individually attached by insert molding to a pair of molding support pieces 27, 28 extending downward from both ends of the fixing portion 26. A fixing projection 26a inserted into the insertion hole 22 of the base 15 is projected from the upper surface of the fixing portion 26, and the contact spring block 18 is attached to the base 15 by welding using the fixing projection 26a. Further, the mounting positions of the contact springs 25 mounted on the molded support pieces 27 and 28 are made different in the width direction of the relay.
【0014】さらに、上記一対の成形支持片27,28
には、図2(a)(b)に示すように、連結部29が架
け渡されており、この連結部29は接触ばね25を挟ん
でその両側位置に夫々設けられている。各連結部29
は、成形支持片27,28の根本27a,28aから接
触ばね25の固定接点部10aとの対向部分25aの上
方付近まで延びて、接触ばね25と固定接点部10aと
の接離動作を妨げないようになっている。また連結部2
9の板厚は、シールド板11に接触しない程度の厚みに
設定されている。Further, the pair of molding support pieces 27, 28.
As shown in FIGS. 2 (a) and 2 (b), a connecting portion 29 is bridged, and the connecting portions 29 are provided on both sides of the contact spring 25, respectively. Each connecting part 29
Extends from above the roots 27a, 28a of the molded support pieces 27, 28 to above the portion 25a of the contact spring 25 that faces the fixed contact portion 10a, and does not prevent the contact spring 25 and the fixed contact portion 10a from contacting and separating. It is like this. In addition, the connecting portion 2
The plate thickness of 9 is set to a thickness that does not contact the shield plate 11.
【0015】上記構成によれば、成形支持片27,28
が連結部29を介して相互に連結されているから、成形
支持片27,28の強度が該連結部29によって十分に
高められる。従って、接触ばね25に負荷がかかった状
態で高温中に放置されても、成形支持片27,28に温
度ストレスによる熱クリープが発生しにくくなるので、
成形支持片27,28の熱変形を極力防止して、リレー
の動作特性の変動を小さくすることができる。また、上
記連結部29は、接触ばね25と固定接点部10aとの
対向部分25aよりも上方位置で両成形支持片27,2
8に架け渡されているから、接触ばね25と固定接点部
10aの接離動作に支障はない。According to the above construction, the molding support pieces 27, 28
Are connected to each other via the connecting portion 29, the strength of the molded support pieces 27 and 28 is sufficiently increased by the connecting portion 29. Therefore, even if the contact spring 25 is left under a high temperature with a load applied thereto, thermal creep due to temperature stress is less likely to occur in the molding support pieces 27, 28.
It is possible to prevent thermal deformation of the molded support pieces 27 and 28 as much as possible and reduce fluctuations in the operating characteristics of the relay. Further, the connecting portion 29 is located above the facing portion 25a between the contact spring 25 and the fixed contact portion 10a.
Since it is bridged over 8, there is no hindrance to the contact / separation operation of the contact spring 25 and the fixed contact portion 10a.
【0016】一方、上記接極子ブロック14は、一対の
接極子16を鉄心5と継鉄3との間に介装すると共に、
接触ばね25を接点ブロック4のシールド板11内に介
装する形で電磁石ブロック2上に取り付けられる。ここ
で、接点ブロック4の中央の固定接点部10aは、一対
の接触ばね25の間に位置し、両側の固定接点部10a
は夫々の接触ばね25の一側部に位置することになる。On the other hand, the armature block 14 has a pair of armatures 16 interposed between the iron core 5 and the yoke 3, and
The contact spring 25 is mounted on the electromagnet block 2 with the contact spring 25 interposed in the shield plate 11 of the contact block 4. Here, the fixed contact portion 10a at the center of the contact block 4 is located between the pair of contact springs 25, and the fixed contact portions 10a on both sides are located.
Will be located on one side of each contact spring 25.
【0017】このリレーにおいて、コイル7に通電を行
うと、鉄心5の両端が異極に磁化され、接極子16で鉄
心5の両端の磁極と異極となった方が吸引される。ここ
で、基体15の両端の一対の接極子16は磁化される極
性を逆にしてあるので、両端の一対の接極子16の内で
リレーの幅方向において同じ側のものが鉄心5に吸着さ
れる。このため、基体15は幅方向において平行移動す
る。なお、鉄心5に接極子16が吸着されると、コイル
7への通電を停止しても、永久磁石17の起磁力で鉄心
5と上記接極子16の吸着状態は保たれ、これにより接
極子ブロック14の可動状態も保たれる。このようにし
て接極子ブロック14が移動すると、夫々の接触ばねブ
ロック18の中央の固定接点部10aと両側のいずれか
の固定接点部10aとの間が短絡される。In this relay, when the coil 7 is energized, both ends of the iron core 5 are magnetized to have different polarities, and the armature 16 attracts the magnetic poles which are different from the magnetic poles at both ends of the iron core 5. Here, since the pair of armatures 16 on both ends of the base body 15 are magnetized in opposite polarities, one of the pair of armatures 16 on both ends on the same side in the width direction of the relay is attracted to the iron core 5. It Therefore, the base 15 moves in parallel in the width direction. When the armature 16 is attracted to the iron core 5, even if the coil 7 is de-energized, the magnetomotive force of the permanent magnet 17 keeps the iron core 5 and the armature 16 in an attracted state. The movable state of the block 14 is also maintained. When the armature block 14 moves in this manner, the central fixed contact portion 10a of each contact spring block 18 and one of the fixed contact portions 10a on both sides are short-circuited.
【0018】上述した状態で、コイル7への通電方向を
逆にすると、鉄心5の両端が上述の場合と逆の極性で磁
化され、接極子ブロック14がリレーの幅方向における
反対側に平行移動し、これにより中央の固定接点部10
aと他方の固定接点部10aとが短絡される接点切換が
行われる。なお、上述のようにコイル7への通電方向を
逆にする代わりに、2組のコイル7を巻き方向を逆にし
てコイルボビン6に巻装しておき、いずれかのコイル7
に通電を行うようにしてもよい。In the above-mentioned state, when the direction of energization to the coil 7 is reversed, both ends of the iron core 5 are magnetized with the polarities opposite to those in the above-mentioned case, and the armature block 14 moves parallel to the opposite side in the width direction of the relay. As a result, the central fixed contact portion 10
Contact switching is performed in which a and the other fixed contact portion 10a are short-circuited. Instead of reversing the energization direction to the coil 7 as described above, two sets of coils 7 are wound around the coil bobbin 6 with their winding directions reversed, and either coil 7
You may make it energize.
【0019】[0019]
【発明の効果】本発明は上述のように、電磁石装置によ
り駆動される接触ばねブロックが、固定接点部に接離自
在である一対の接触ばねと、固定部の両側から垂下して
上記各接触ばねを個別に支持する一対の成形支持片と、
両成形支持片を相互に連結する連結部とを備えた構成で
あるから、両成形支持片を連結部によって補強できる。
従って、接触ばねに負荷がかかった状態で高温中に放置
した場合にも、上記成形支持片に熱クリープが発生する
のを極力抑制して、成形支持片の熱変形を防止できる結
果、リレーの安定した動作特性を確保できる。As described above, according to the present invention, the contact spring block driven by the electromagnet device is provided with a pair of contact springs which can be contacted with and separated from the fixed contact portion, and the contact spring blocks which are hung from both sides of the fixed portion. A pair of molded support pieces that individually support the springs,
Since it is provided with the connecting portion that connects the two molding support pieces to each other, the both molding support pieces can be reinforced by the connection portion.
Therefore, even when the contact spring is left under a high temperature with a load applied thereto, it is possible to suppress the thermal creep of the molding support piece as much as possible and prevent the thermal deformation of the molding support piece. Stable operating characteristics can be secured.
【図1】(a)は本発明の一実施例の接触ばねブロック
の斜視図、(b)は正面図である。FIG. 1A is a perspective view of a contact spring block according to an embodiment of the present invention, and FIG. 1B is a front view.
【図2】(a)は同上の接触ばねと固定接点部との正面
図、(b)は平面図である。FIG. 2 (a) is a front view of the contact spring and the fixed contact portion of the above, and FIG. 2 (b) is a plan view.
【図3】同上の接触ばねブロックを備えるリレーの分解
斜視図である。FIG. 3 is an exploded perspective view of a relay including the contact spring block of the above.
【図4】(a)は従来例の接触ばねブロックの斜視図、
(b)は正面図である。FIG. 4A is a perspective view of a conventional contact spring block,
(B) is a front view.
【図5】(a)は図4の接触ばねと固定接点部との正面
図、(b)は平面図である。5A is a front view of the contact spring and the fixed contact portion of FIG. 4, and FIG. 5B is a plan view.
2 電磁石装置 10a 固定接点部 18 接触ばねブロック 25 接触ばね 26 固定部 27 成形支持片 28 成形支持片 29 連結部 2 Electromagnet device 10a Fixed contact part 18 Contact spring block 25 Contact spring 26 Fixed part 27 Molded support piece 28 Molded support piece 29 Connecting part
Claims (1)
ロックが、固定接点部に接離自在である一対の接触ばね
と、固定部の両側から垂下して上記各接触ばねを個別に
支持する一対の成形支持片と、両成形支持片を相互に連
結する連結部とを備えたことを特徴とするリレーの構
造。1. A contact spring block driven by an electromagnet device, a pair of contact springs capable of contacting and separating from a fixed contact portion, and a pair of contact springs hanging from both sides of the fixed portion to individually support the contact springs. A relay structure comprising a molded support piece and a connecting portion for connecting the two molded support pieces to each other.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP6887092A JPH05274983A (en) | 1992-03-26 | 1992-03-26 | Structure of relay |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP6887092A JPH05274983A (en) | 1992-03-26 | 1992-03-26 | Structure of relay |
Publications (1)
Publication Number | Publication Date |
---|---|
JPH05274983A true JPH05274983A (en) | 1993-10-22 |
Family
ID=13386129
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP6887092A Pending JPH05274983A (en) | 1992-03-26 | 1992-03-26 | Structure of relay |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH05274983A (en) |
-
1992
- 1992-03-26 JP JP6887092A patent/JPH05274983A/en active Pending
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