JPH0644880A - Protective relay device - Google Patents

Protective relay device

Info

Publication number
JPH0644880A
JPH0644880A JP19954292A JP19954292A JPH0644880A JP H0644880 A JPH0644880 A JP H0644880A JP 19954292 A JP19954292 A JP 19954292A JP 19954292 A JP19954292 A JP 19954292A JP H0644880 A JPH0644880 A JP H0644880A
Authority
JP
Japan
Prior art keywords
relay device
protective relay
terminal pin
electric field
case
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
Application number
JP19954292A
Other languages
Japanese (ja)
Inventor
Hirotada Higashihama
弘忠 東浜
Junichi Matsuda
純一 松田
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 JP19954292A priority Critical patent/JPH0644880A/en
Publication of JPH0644880A publication Critical patent/JPH0644880A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H50/00—Details of electromagnetic relays
    • H01H50/10—Electromagnetic or electrostatic shielding

Landscapes

  • Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)

Abstract

PURPOSE:To shield the electric field noise emitted by a protective relay device concerned by furnishing it with a shield case made of a non-magnetic metal material and a terminal pin for grounding the case, which includes an insulation part admitting penetration of the terminal pin and encloses the device body. CONSTITUTION:A shield case 2 includes an insulation part 5 penetrated by a terminal pin 4 made of non-magnetic metal material for shielding the electric field noise and encloses the outer surface of the body 1 of a protective relay device concerned. The case 2 is composed of a base 2 and a cover 7 whose opening edge is in tight attachment with the base 6, while the insulation part 5 is made of glass, and the inside of the case 2 is sealed by the metal hermetic structure as a crystal can. A pin for grounding 3 penetrates the base 6 and is embedded in the cover 7 so that the pin 3 is in connected with a grounding land on a printed circuit board to exert a good shielding effect for a high frequency electric field.

Description

【発明の詳細な説明】Detailed Description of the Invention

【０００１】[0001]

【産業上の利用分野】この発明は、電磁継電器や電磁開
閉器等に適用される保護継電装置に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a protective relay device applied to an electromagnetic relay, an electromagnetic switch or the like.

【０００２】[0002]

【従来の技術】例えば、電磁開閉器のハウジングは樹脂
により封印されており、電路と接続する端子以外は外部
と完全に絶縁されている。ところが、樹脂封印された電
磁開閉器においては内部接点の開閉により電磁ノイズが
発生し、周辺の半導体素子に誤動作を引き起こさせる原
因となった。2. Description of the Related Art For example, a housing of an electromagnetic switch is sealed with resin, and is completely insulated from the outside except terminals connected to an electric circuit. However, in a resin-sealed electromagnetic switch, electromagnetic noise is generated due to the opening and closing of internal contacts, which causes a malfunction in peripheral semiconductor elements.

【０００３】[0003]

【発明が解決しようとする課題】従来、図４ないし図６
に示すように、ハウジング３０を金属ハーメチック構造
とした電磁開閉器があった。３２はハウジング３０の絶
縁部３１に設けられた端子ピンである。しかし、シール
している理由が有毒ガス，粉塵，水分などの悪環境下で
も使用でき、また優れた気密性を保つためであり、ノイ
ズ対策を主目的として構成したものではない。Conventionally, as shown in FIGS.
There is an electromagnetic switch in which the housing 30 has a metal hermetic structure as shown in FIG. Reference numeral 32 is a terminal pin provided on the insulating portion 31 of the housing 30. However, the reason for sealing is that it can be used even in a bad environment such as toxic gas, dust, and moisture, and that it maintains excellent airtightness, and it is not configured mainly as a noise countermeasure.

【０００４】これに対して、ハウジング３０を磁性材料
として磁気シールドを目的とし、接地用端子ピンを備え
たものもあった。しかし、電界ノイズにより電磁開閉器
の周辺の半導体素子が誤動作する欠点があった。そこ
で、保護継電装置についての電磁環境適合性という観点
から、電磁開閉器の内部からの電界ノイズの放射を抑
え、電磁開閉器の周辺の半導体素子の誤動作を阻止する
充分な電界遮蔽が必要になった。On the other hand, there has been a housing having a grounding terminal pin for the purpose of magnetic shielding using the housing 30 as a magnetic material. However, there is a drawback that a semiconductor element around the electromagnetic switch malfunctions due to electric field noise. Therefore, from the viewpoint of the electromagnetic compatibility of the protective relay device, it is necessary to suppress the emission of electric field noise from the inside of the electromagnetic switch and to prevent the malfunction of the semiconductor elements around the electromagnetic switch. became.

【０００５】したがって、この発明の目的は、電界ノイ
ズを遮蔽することができる保護継電装置を提供すること
である。Therefore, an object of the present invention is to provide a protective relay device capable of shielding electric field noise.

【０００６】[0006]

【課題を解決するための手段】この発明の保護継電装置
は、端子ピンを有する保護継電装置本体と、電界ノイズ
を遮蔽するものであって前記端子ピンを貫通する絶縁部
を有して前記保護継電装置本体の外面を被覆した非磁性
の金属製の遮蔽ケースと、この遮蔽ケースに設けられて
前記遮蔽ケースを接地する接地用端子ピンとを備えたも
のである。A protective relay device of the present invention comprises a protective relay device body having terminal pins, and an insulating portion for shielding electric field noise and penetrating the terminal pins. A non-magnetic metal shield case covering the outer surface of the protective relay device body and a grounding terminal pin provided in the shield case and grounding the shield case are provided.

【０００７】[0007]

【作用】この発明の構成によれば、保護継電装置本体の
内部の接点のオン−オフおよび接点可動用のコイルの動
作で生じた電界ノイズは、非磁性で金属製の遮蔽ケース
で保護継電装置本体を被覆しているため、その遮蔽ケー
スにより外部への放射が抑えられ、接地用端子ピンを外
部接地と接続することにより、放射電界に対して有効な
遮蔽効果が得られる。According to the structure of the present invention, the electric field noise generated by the on / off operation of the contact inside the protective relay device main body and the operation of the coil for moving the contact is protected by the non-magnetic and metallic shielding case. Since the main body of the electric device is covered, the shielding case suppresses radiation to the outside, and by connecting the grounding terminal pin to the external ground, an effective shielding effect for the radiated electric field can be obtained.

【０００８】[0008]

【実施例】この発明の一実施例を図１ないし図３により
説明する。すなわち、この保護継電装置は電磁開閉器を
実施例とし、保護継電装置本体１と、遮蔽ケース２と、
接地用端子ピン３とを有する。保護継電装置１は、端子
ピン４を有する。実施例では公知のものを用いているの
で具体的構成の説明を省略するが、実施例ではグランド
プレートとなる金属製のベース６に設置されている。こ
のベース６の絶縁部５に保護継電装置１の端子ピン４が
貫通している。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described with reference to FIGS. That is, this protective relay device uses an electromagnetic switch as an example, and the protective relay device main body 1, the shielding case 2,
And a grounding terminal pin 3. The protective relay device 1 has a terminal pin 4. Although a publicly known one is used in the embodiment, a detailed description of the structure will be omitted. The terminal pin 4 of the protective relay device 1 passes through the insulating portion 5 of the base 6.

【０００９】遮蔽ケース２は、電界ノイズを遮蔽するも
のであって、非磁性の金属製であり、端子ピン４を貫通
する絶縁部５を有して保護継電装置本体１の外面を被覆
する。実施例では前記ベース６とベース６に開口縁が密
着するカバー７からなり、絶縁部はガラスを実施例と
し、カバー７はクリスタルカンとなる金属ハーメチック
構造であり、遮蔽ケース２の内部を封着している。The shield case 2 shields electric field noise, is made of non-magnetic metal, and has an insulating portion 5 penetrating the terminal pin 4 to cover the outer surface of the protective relay device main body 1. . In the embodiment, the base 6 and the cover 7 whose opening edge is in close contact with the base 6 are used. The insulating portion is made of glass. The cover 7 has a metal hermetic structure that serves as a crystal can. is doing.

【００１０】接地用端子ピン３は、遮蔽ケース２に設け
られているが、実施例ではベース６を貫通しカバー７に
埋め込まれるように接地用端子ピン３を差し込んでい
る。この接地用端子ピン３が保護継電装置が実装される
プリント板上の接地ランドに実装時に接続されることに
より、高周波電界に対して良好な遮蔽効果を得ることが
できる。The grounding terminal pin 3 is provided on the shielding case 2, but in the embodiment, the grounding terminal pin 3 is inserted so as to penetrate the base 6 and be embedded in the cover 7. By connecting the grounding terminal pin 3 to the grounding land on the printed board on which the protective relay device is mounted, a good shielding effect against a high frequency electric field can be obtained.

【００１１】この実施例によれば、保護継電装置本体１
の内部の接点のオン−オフおよび接点可動用のコイルの
動作で生じた電界ノイズは、非磁性で金属製の遮蔽ケー
ス２で保護継電装置本体１を被覆しているため、その遮
蔽ケース２により外部への放射が抑えられ、接地用端子
ピン４を外部接地と接続することにより、放射電界に対
して有効な遮蔽効果が得られる。According to this embodiment, the protective relay device body 1
The electric field noise generated by the on / off of the contacts inside the coil and the operation of the coil for moving the contacts is covered with the shielding case 2 because the shielding case 2 made of a non-magnetic metal is covering the protection relay device body 1. As a result, radiation to the outside is suppressed, and by connecting the grounding terminal pin 4 to an external ground, an effective shielding effect for the radiated electric field can be obtained.

【００１２】[0012]

【発明の効果】この発明の保護継電装置は、保護継電装
置本体の内部の接点のオン−オフおよび接点可動用のコ
イルの動作で生じた電界ノイズは、非磁性で金属製の遮
蔽ケースで保護継電装置本体を被覆しているため、その
遮蔽ケースにより外部への放射が抑えられ、接地用端子
ピンを外部接地と接続することにより、放射電界に対し
て有効な遮蔽効果が得られるという効果がある。According to the protective relay of the present invention, the electric field noise generated by the on / off operation of the contact inside the protective relay main body and the operation of the coil for moving the contact is a non-magnetic and metallic shielding case. Since the protective relay device body is covered with, the radiation to the outside is suppressed by the shielding case, and by connecting the grounding terminal pin to the external ground, an effective shielding effect against the radiated electric field can be obtained. There is an effect.

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

【図１】この発明の一実施例の断面図である。FIG. 1 is a sectional view of an embodiment of the present invention.

【図２】その斜視図である。FIG. 2 is a perspective view thereof.

【図３】その底面図である。FIG. 3 is a bottom view thereof.

【図４】従来例の断面図である。FIG. 4 is a sectional view of a conventional example.

【図５】その斜視図である。FIG. 5 is a perspective view thereof.

【図６】その底面図である。FIG. 6 is a bottom view thereof.

【符号の説明】 １ 保護継電装置本体 ２ 遮蔽ケース ３ 接地用端子ピン ４ 端子ピン ５ 絶縁部[Explanation of symbols] 1 protective relay device body 2 shielding case 3 grounding terminal pin 4 terminal pin 5 insulating part

Claims (1)

【特許請求の範囲】[Claims] 【請求項１】 端子ピンを有する保護継電装置本体と、
電界ノイズを遮蔽するものであって前記端子ピンを貫通
する絶縁部を有して前記保護継電装置本体の外面を被覆
した非磁性の金属製の遮蔽ケースと、この遮蔽ケースに
設けられて前記遮蔽ケースを接地する接地用端子ピンと
を備えた保護継電装置。1. A protective relay device main body having a terminal pin,
A shielding case made of non-magnetic metal for shielding electric field noise and having an insulating portion penetrating the terminal pin and covering the outer surface of the protective relay device main body, and the shielding case provided on the shielding case. A protective relay device having a grounding terminal pin for grounding the shielding case.
JP19954292A 1992-07-27 1992-07-27 Protective relay device Pending JPH0644880A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP19954292A JPH0644880A (en) 1992-07-27 1992-07-27 Protective relay device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP19954292A JPH0644880A (en) 1992-07-27 1992-07-27 Protective relay device

Publications (1)

Publication Number Publication Date
JPH0644880A true JPH0644880A (en) 1994-02-18

Family

ID=16409561

Family Applications (1)

Application Number Title Priority Date Filing Date
JP19954292A Pending JPH0644880A (en) 1992-07-27 1992-07-27 Protective relay device

Country Status (1)

Country Link
JP (1) JPH0644880A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20180286614A1 (en) * 2015-10-02 2018-10-04 Schott Japan Corporation Hermetic Terminal for High-Capacity Relay and Contact Device for High-Capacity Relay Including the Hermetic Terminal

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20180286614A1 (en) * 2015-10-02 2018-10-04 Schott Japan Corporation Hermetic Terminal for High-Capacity Relay and Contact Device for High-Capacity Relay Including the Hermetic Terminal
US10580602B2 (en) * 2015-10-02 2020-03-03 Schott Japan Corporation Hermetic terminal for high-capacity relay and contact device for high-capacity relay including the hermetic terminal

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