JP2009043517A - Circuit breaker - Google Patents

Circuit breaker Download PDF

Info

Publication number
JP2009043517A
JP2009043517A JP2007206457A JP2007206457A JP2009043517A JP 2009043517 A JP2009043517 A JP 2009043517A JP 2007206457 A JP2007206457 A JP 2007206457A JP 2007206457 A JP2007206457 A JP 2007206457A JP 2009043517 A JP2009043517 A JP 2009043517A
Authority
JP
Japan
Prior art keywords
dust barrier
housing
barrier
circuit breaker
dust
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
JP2007206457A
Other languages
Japanese (ja)
Inventor
Hiroyuki Okamura
浩之 岡村
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.)
Nitto Kogyo Corp
Original Assignee
Nitto Kogyo Corp
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 Nitto Kogyo Corp filed Critical Nitto Kogyo Corp
Priority to JP2007206457A priority Critical patent/JP2009043517A/en
Publication of JP2009043517A publication Critical patent/JP2009043517A/en
Pending legal-status Critical Current

Links

Images

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
    • H01H9/30—Means for extinguishing or preventing arc between current-carrying parts
    • H01H9/34—Stationary parts for restricting or subdividing the arc, e.g. barrier plate
    • H01H9/342—Venting arrangements for arc chutes
    • H01H2009/343—Venting arrangements for arc chutes with variable venting aperture function of arc chute internal pressure, e.g. resilient flap-valve or check-valve

Abstract

<P>PROBLEM TO BE SOLVED: To provide a circuit breaker excellent in assembling workability of a dust barrier. <P>SOLUTION: The circuit breaker according to the present invention comprises an insertion hole, into which a dust barrier can be inserted from the outside of a housing, wherein the outside of the slide insertion portion of the dust barrier formed on the inside of the terminal seat of the housing composed of a base and a cover is cut at the midpoint height of the dust barrier. Because the dust barrier 15 can be inserted and attached from the opening for terminal connection of the housing 1 into the slide insertion portion 8 after having assembled the cover 3 and the base 2, the assembling workability can be improved. The slide insertion portion 8 may be a retaining groove or a protrusion. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

本発明は、短絡時にアークガスを排出する排出口から筐体内に塵埃が侵入することを防止するために、板状のダストバリアを取り付けた配線用遮断器に関するものである。   The present invention relates to a circuit breaker to which a plate-like dust barrier is attached in order to prevent dust from entering a housing from an outlet through which arc gas is discharged during a short circuit.

配線用遮断器には、短絡時に発生するアークガスを筐体外へ排出する排出口が設けられ、この排出口には施工時や使用時にゴミやほこりが筐体内に入らないように、板状のダストバリアが取り付けられている。ダストバリアは可撓性のある部材で作られ、通常は排気口を塞いでいるが、アークガスが噴出したときには筐体の外側に撓んでアークガスを排出できる構造となっている。   The circuit breaker for wiring is provided with a discharge port for discharging arc gas generated at the time of a short circuit to the outside of the housing, and this discharge port is used to prevent dust and dust from entering the housing during construction and use. A barrier is attached. The dust barrier is made of a flexible member, and normally closes the exhaust port. However, when the arc gas is ejected, the dust barrier is bent to the outside of the casing to discharge the arc gas.

特許文献１に示されるように、ダストバリアは筐体のベース側に形成された対をなす縦溝間に嵌めこまれており、それらの縦溝の上端を筐体のカバーで押さえることによって保持されているのが普通である。   As shown in Patent Document 1, the dust barrier is fitted between a pair of vertical grooves formed on the base side of the casing, and is held by pressing the upper ends of those vertical grooves with the cover of the casing. It is normal that it is done.

このためダストバリアの取り付けは、筐体のベース内部に開閉機構や端子装置などを組み込んだ後、最後にベースの縦溝にダストバリアを差し込んで仮取り付けし、その後にダストバリアの上端をカバーの溝に合わせながらカバーを被せて固定する方法によって行われている。しかしカバーの下面で位置合わせをしながらカバーを被せる必要があるため、組立作業性が悪いという問題があった。
実開平１−１５９３３２号公報 For this reason, the dust barrier is attached by installing an opening / closing mechanism or terminal device inside the base of the housing, and finally inserting the dust barrier into the vertical groove of the base and temporarily attaching it, and then attaching the upper end of the dust barrier to the cover It is carried out by a method of covering and fixing the cover while aligning with the groove. However, since it is necessary to cover the cover while aligning on the lower surface of the cover, there is a problem that the assembling workability is poor.
Japanese Utility Model Publication No. 1-159332

本発明は上記した従来の問題点を解決し、ダストバリアの組付作業性がよい配線用遮断器を提供することを目的とするものである。   SUMMARY OF THE INVENTION An object of the present invention is to solve the above-described conventional problems and to provide a wiring breaker with good dust barrier assembly workability.

上記の課題を解決するためになされた本発明は、ベースとカバーとからなる筐体の端子座の内側に形成されるダストバリアのスライド挿入部の外側をダストバリアの中間高さ位置でカットし、ダストバリアを筐体外部から挿入できる挿入孔を設けたことを特徴とするものである。なお、ダストバリアのスライド挿入部の筐体端部に向けた上端部に、挿入孔を設けた構造とすることができる。またダストバリアのスライド挿入部は、保持溝または突起からなるものとすることができる。   In order to solve the above-mentioned problems, the present invention cuts the outside of the dust barrier slide insertion portion formed inside the terminal seat of the casing made of the base and the cover at the intermediate height position of the dust barrier. An insertion hole into which the dust barrier can be inserted from the outside of the housing is provided. In addition, it can be set as the structure which provided the insertion hole in the upper end part toward the housing | casing edge part of the slide insertion part of a dust barrier. Moreover, the slide insertion part of a dust barrier shall consist of a holding groove or protrusion.

本発明の配線用遮断器は、ダストバリアのスライド挿入部の外側をダストバリアの中間高さ位置でカットし、ダストバリアを筐体外部から挿入できる挿入孔を設けたものであるから、ベースとカバーとを固定した後に、ダストバリアを撓ませながら筐体の外部から挿入口を通じて、スライド挿入部内に挿入することができる。挿入されたダストバリアは外力を除けば平板状に復元し、ダストバリアとしての機能を発揮する。このように本発明によればベースとカバーとを固定した後にダストバリアを外部から容易に挿入できるので、ダストバリアを備えた配線用遮断器の組付作業性を向上させることができる。   The circuit breaker according to the present invention is such that the outside of the slide insertion portion of the dust barrier is cut at an intermediate height position of the dust barrier and an insertion hole is provided through which the dust barrier can be inserted from the outside of the housing. After fixing the cover, it can be inserted into the slide insertion portion from the outside of the housing through the insertion opening while bending the dust barrier. The inserted dust barrier is restored to a flat plate shape when an external force is removed, and functions as a dust barrier. As described above, according to the present invention, the dust barrier can be easily inserted from the outside after fixing the base and the cover, so that the workability of assembling the circuit breaker provided with the dust barrier can be improved.

また請求項２のように、ダストバリアのスライド挿入部の筐体端部に向けた上端部に挿入孔を設けた構造とすれば、斜め上方からダストバリアを挿入できるので、挿入作業が容易に行える。   In addition, if the structure is provided with an insertion hole at the upper end portion of the slide insertion portion of the dust barrier toward the housing end portion, the dust barrier can be inserted obliquely from above, thereby facilitating the insertion operation. Yes.

以下に、図面を参照しつつ本発明の好ましい実施の形態を示す。
図１は本発明の実施形態を示す配線用路遮断器の斜視図、図２はベースの上面斜視図、図３はカバーを上下反転させた状態の斜視図である。１は筐体であり、ベース２とカバー３とからなるものである。図２に示されるように、ベース２は上面が開放した箱形形状をしており、図３に示されるように、カバー３は下面が開放した箱形形状をしている。 Hereinafter, preferred embodiments of the present invention will be described with reference to the drawings.
FIG. 1 is a perspective view of a circuit breaker for wiring showing an embodiment of the present invention, FIG. 2 is a top perspective view of a base, and FIG. 3 is a perspective view of a state in which a cover is turned upside down. Reference numeral 1 denotes a housing, which includes a base 2 and a cover 3. As shown in FIG. 2, the base 2 has a box shape with the upper surface open, and as shown in FIG. 3, the cover 3 has a box shape with the lower surface open.

この実施形態の配線用遮断器は単一のハンドル５を備えた３極用の配線用遮断器であり、各極の端子座の部分をアークガスの排気に利用した構造である。ベース２には端子座４が取り付けられる部分の両側に極間の絶縁隔壁６が形成され、これらの絶縁隔壁６から突出する２本の突状７によってスライド挿入部８である保持溝が形成されている。このスライド挿入部８は水平である端子接続部の端部付近に位置している。   The wiring circuit breaker of this embodiment is a three-pole wiring circuit breaker having a single handle 5 and has a structure in which the terminal seat portion of each pole is used for discharge of arc gas. An insulating partition wall 6 between the electrodes is formed on both sides of the portion where the terminal seat 4 is attached to the base 2, and a holding groove which is a slide insertion portion 8 is formed by two protrusions 7 protruding from these insulating partition walls 6. ing. The slide insertion portion 8 is positioned near the end of the terminal connection portion that is horizontal.

またカバー３にも極間の絶縁隔壁９が形成されている。またカバー３には、各極の端子座の中間部分を筐体外側と筐体内側とに仕切る硬質板状の排気孔バリア１０がベース２の方向に延設されている。この排気孔バリア１０には多数の排気孔１１が形成されていて、回路遮断時に発生するアークガスを排気できるようになっている。   An insulating partition wall 9 between the electrodes is also formed on the cover 3. The cover 3 has a hard plate-like exhaust hole barrier 10 extending in the direction of the base 2 that partitions an intermediate portion of the terminal seat of each pole into a housing outer side and a housing inner side. A number of exhaust holes 11 are formed in the exhaust hole barrier 10 so that arc gas generated when the circuit is interrupted can be exhausted.

ダストバリア１５は図５に示すような板状片であり、樹脂やファイバー材のような可撓性を有する材質からなる。ダストバリア１５は下部の幅広部１６を前記したスライド挿入部８、８間にスライドさせながら差込み、図４、図７に示されるように排気孔バリア１０の外側に密着した垂直姿勢を維持するものである。なお上部１７はフリーであるから、アークガス発生時にはその圧力により外側に撓んでアークガスを排気するが、通常時には排気孔バリア１０の排気孔１１を塞いで塵埃の侵入を防止するものである。   The dust barrier 15 is a plate-like piece as shown in FIG. 5 and is made of a flexible material such as resin or fiber material. The dust barrier 15 is inserted while sliding the lower wide portion 16 between the slide insertion portions 8 and 8 described above, and maintains a vertical posture in close contact with the outside of the exhaust hole barrier 10 as shown in FIGS. It is. Since the upper portion 17 is free, when the arc gas is generated, it is bent outward by the pressure to discharge the arc gas, but normally the exhaust hole 11 of the exhaust hole barrier 10 is closed to prevent the intrusion of dust.

以上の構成は従来と基本的に変わるものではないが、本発明ではダストバリア１５のスライド挿入部８をダストバリア１５の中間高さ位置でカットし、ダストバリア１５を筐体外部から挿入できる挿入孔１８を設けてある。すなわちこの実施形態では、スライド挿入部８を構成する２本の突状７のうち、筐体外側の突状７の上方部を切り欠いて挿入孔１８を形成している。   Although the above configuration is not fundamentally different from the conventional configuration, in the present invention, the slide insertion portion 8 of the dust barrier 15 is cut at an intermediate height position of the dust barrier 15 so that the dust barrier 15 can be inserted from the outside of the housing. A hole 18 is provided. In other words, in this embodiment, the insertion hole 18 is formed by cutting out the upper part of the protrusion 7 on the outside of the housing, out of the two protrusions 7 constituting the slide insertion portion 8.

このため、図６に示すようにダストバリア１５を組み込まない状態でベース２にカバー３を取り付けたのち、図７に示すように端子接続用開口１２を通じて斜め上方からダストバリア１５の幅広部１６をスライド挿入部８、８間に差し込むことができる。挿入時にはダストバリア１５を撓ませる必要があるが、下端まで差し込んだうえで手を放せばダストバリア１５は撓みが戻り、排気孔バリア１０の外側に密着した垂直姿勢となり、その後は脱落するおそれはない。   For this reason, after attaching the cover 3 to the base 2 without incorporating the dust barrier 15 as shown in FIG. 6, the wide portion 16 of the dust barrier 15 is inclined from the upper side through the terminal connection opening 12 as shown in FIG. It can be inserted between the slide insertion portions 8 and 8. It is necessary to bend the dust barrier 15 at the time of insertion. However, if the hand is released after inserting it to the lower end, the dust barrier 15 returns to bend and becomes a vertical posture in close contact with the outside of the exhaust hole barrier 10, and then may fall off. Absent.

挿入孔１８はダストバリア１５の中間高さより上側に形成されるとともに、その内側角部を斜めに面取りし、斜めに差し込まれるダストバリア１５の挿入が円滑に行われるようにしている。なお中間高さとは、ダストバリア１５の高さの２／５〜４／５の範囲であり、挿入孔１８の下端がダストバリア１５の高さの２／５よりも低いとダストバリア１５の保持が不安定になり、４／５よりも高いと挿入が困難となるためである。   The insertion hole 18 is formed above the intermediate height of the dust barrier 15 and the inner corners thereof are chamfered obliquely so that the dust barrier 15 inserted obliquely can be smoothly inserted. The intermediate height is in the range of 2/5 to 4/5 of the height of the dust barrier 15. When the lower end of the insertion hole 18 is lower than 2/5 of the height of the dust barrier 15, the dust barrier 15 is held. This is because insertion becomes difficult, and if it is higher than 4/5, insertion becomes difficult.

なお、この実施形態ではダストバリア１５のスライド挿入部８の筐体端部に向けた上端部に、挿入孔１８を設けたので、挿入作業を円滑に行うことができる。しかし図８に示す第２の実施形態のように、カバー３にダストバリア１５のスライド挿入部８を形成し、挿入孔１８を下向きとしてもよい。またベース２とカバー３の両方にスライド挿入部８を形成し、水平方向から挿入するようにしてもよい。   In this embodiment, since the insertion hole 18 is provided at the upper end portion of the dust barrier 15 facing the housing end of the slide insertion portion 8, the insertion operation can be performed smoothly. However, as in the second embodiment shown in FIG. 8, the slide insertion portion 8 of the dust barrier 15 may be formed in the cover 3 and the insertion hole 18 may be directed downward. Moreover, the slide insertion part 8 may be formed in both the base 2 and the cover 3, and you may make it insert from a horizontal direction.

また、実施形態ではダストバリア１５のスライド挿入部８を保持溝としているが、図９に示されるように、複数の突起によってスライド挿入部８を形成することもできる。   In the embodiment, the slide insertion portion 8 of the dust barrier 15 is a holding groove. However, as shown in FIG. 9, the slide insertion portion 8 can be formed by a plurality of protrusions.

このように構成された本発明の配線用遮断器は、カバー３とベース２を組み立てた後に、筐体１の端子接続用開口からダストバリア１５をスライド挿入部８に差し込んで取り付けることができるので、従来に比較して配線用遮断器の組付作業性を向上させることができる。   Since the circuit breaker of the present invention configured as described above can be attached by inserting the dust barrier 15 into the slide insertion portion 8 from the terminal connection opening of the housing 1 after the cover 3 and the base 2 are assembled. Thus, the assembly workability of the circuit breaker for wiring can be improved as compared with the prior art.

このようにして挿入されたダストバリア１５は筐体１内に塵埃が侵入することを的確に防止することができ、またアークガスが発生した際にはそのガス圧によりダストバリア１５は撓んで排気孔バリア１０の排気孔１１を開き、アークガスを筐体の外部に排出することができる。   The dust barrier 15 inserted in this way can accurately prevent dust from entering the housing 1, and when arc gas is generated, the dust barrier 15 is bent by the gas pressure and the exhaust hole is exhausted. The exhaust hole 11 of the barrier 10 can be opened to discharge the arc gas to the outside of the housing.

本発明の配線用遮断器の外観斜視図である。It is an external appearance perspective view of the circuit breaker for wiring of this invention. ベースの斜視図である。It is a perspective view of a base. カバーの裏側の斜視図である。It is a perspective view of the back side of a cover. 本発明の配線用遮断器の側面図である。It is a side view of the circuit breaker for wiring of this invention. ダストバリアの斜視図である。It is a perspective view of a dust barrier. ベースにカバーを組付ける状態を示す説明図である。It is explanatory drawing which shows the state which attaches a cover to a base. ダストバリアを組付ける状態を示す説明図である。It is explanatory drawing which shows the state which attaches a dust barrier. ダストバリア保持部の他の実施形態を示す断面図である。It is sectional drawing which shows other embodiment of a dust barrier holding | maintenance part. ダストバリア保持部のさらに他の実施形態を示す断面図である。It is sectional drawing which shows other embodiment of a dust barrier holding | maintenance part.

符号の説明Explanation of symbols

１ 筐体
２ ベース
３ カバー
４ 端子座
５ ハンドル
６ 絶縁隔壁
７ 突状
８ スライド挿入部
９ 絶縁隔壁
１０ 排気孔バリア
１１ 排気孔
１２ 端子接続用開口
１５ ダストバリア
１６ 幅広部
１７ 上部
１８ 挿入孔 DESCRIPTION OF SYMBOLS 1 Case 2 Base 3 Cover 4 Terminal seat 5 Handle 6 Insulation partition 7 Projection 8 Slide insertion part 9 Insulation partition 10 Exhaust hole barrier 11 Exhaust hole 12 Terminal connection opening 15 Dust barrier 16 Wide part 17 Upper part 18 Insertion hole

Claims (3)

ベースとカバーとからなる筐体の端子座の内側に形成されるダストバリアのスライド挿入部の外側をダストバリアの中間高さ位置でカットし、ダストバリアを筐体外部から挿入できる挿入孔を設けたことを特徴とする配線用遮断器。   The outside of the dust barrier slide insertion part formed inside the terminal base of the housing consisting of the base and cover is cut at the middle height position of the dust barrier to provide an insertion hole for inserting the dust barrier from the outside of the housing A circuit breaker for wiring. ダストバリアのスライド挿入部の筐体端部に向けた上端部に、挿入孔を設けたことを特徴とする請求項１に記載の配線用遮断器。   The circuit breaker for wiring according to claim 1, wherein an insertion hole is provided in an upper end portion of the slide insertion portion of the dust barrier facing the housing end portion. ダストバリアのスライド挿入部が、保持溝または突起からなることを特徴とする請求項１または２に記載の配線用遮断器。   The circuit breaker according to claim 1 or 2, wherein the slide insertion portion of the dust barrier comprises a holding groove or a protrusion.
JP2007206457A 2007-08-08 2007-08-08 Circuit breaker Pending JP2009043517A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2007206457A JP2009043517A (en) 2007-08-08 2007-08-08 Circuit breaker

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2007206457A JP2009043517A (en) 2007-08-08 2007-08-08 Circuit breaker

Publications (1)

Publication Number Publication Date
JP2009043517A true JP2009043517A (en) 2009-02-26

Family

ID=40444058

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2007206457A Pending JP2009043517A (en) 2007-08-08 2007-08-08 Circuit breaker

Country Status (1)

Country Link
JP (1) JP2009043517A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101866789A (en) * 2009-04-14 2010-10-20 富士电机机器制御株式会社 Circuit-breaker
JP2012089376A (en) * 2010-10-20 2012-05-10 Mitsubishi Electric Corp Circuit breaker
US9691578B2 (en) 2013-04-08 2017-06-27 Abl Ip Holding Llc Relay assembly with exhaust cover
CN116978742A (en) * 2023-08-14 2023-10-31 杭州天卓网络有限公司 Intelligent circuit breaker based on plug-in connection of Internet of things and application method thereof

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0287357U (en) * 1988-12-23 1990-07-11

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0287357U (en) * 1988-12-23 1990-07-11

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101866789A (en) * 2009-04-14 2010-10-20 富士电机机器制御株式会社 Circuit-breaker
JP2010251035A (en) * 2009-04-14 2010-11-04 Fuji Electric Fa Components & Systems Co Ltd Circuit breaker
JP2012089376A (en) * 2010-10-20 2012-05-10 Mitsubishi Electric Corp Circuit breaker
US9691578B2 (en) 2013-04-08 2017-06-27 Abl Ip Holding Llc Relay assembly with exhaust cover
EP2790203B1 (en) * 2013-04-08 2018-01-17 ABL IP Holding LLC Relay Assembly with Exhaust Cover
CN116978742A (en) * 2023-08-14 2023-10-31 杭州天卓网络有限公司 Intelligent circuit breaker based on plug-in connection of Internet of things and application method thereof
CN116978742B (en) * 2023-08-14 2024-02-13 杭州天卓网络有限公司 Intelligent circuit breaker based on plug-in connection of Internet of things and application method thereof

Similar Documents

Publication Publication Date Title
JP2009043517A (en) Circuit breaker
JP6145726B2 (en) Mounting frame for wiring apparatus, handle, and switch device
JP2001339174A (en) Electronic component containing case
JP2009005043A (en) Sound hole waterproofing/drainage structure of portable electronic device
JP2008112660A (en) Electronic equipment
JP2010010542A (en) Wall hanging structure of electronic equipment
JP2007073839A (en) Case body structure for radio base station
JP2002352691A (en) Dust-proof structure for circuit breaker
WO2008025635A3 (en) Housing for an electrical assembly
JP6943535B2 (en) Battery case
JP4525552B2 (en) Table tap with switch
JP2008107741A (en) External housing for portable apparatus
JP4854500B2 (en) Electrical and electronic equipment storage box
JP5317044B2 (en) Game machine
JP2009044041A (en) Structure of housing for electronic apparatus
JP2018197579A (en) Protection cover connection body, and assembly structure of the same
JP6710109B2 (en) Circuit breaker
JPH05275868A (en) Housing for electric device
JP2007242463A (en) Circuit breaker
JP7347734B2 (en) Optical cable cabinet
JP4443434B2 (en) Electrical equipment storage box
JP2007173331A (en) Louver
JP2013152846A (en) Circuit breaker
JP2007323996A (en) Circuit breaker
JP2000156259A (en) Plug socket with door

Legal Events

Date Code Title Description
A621 Written request for application examination

Free format text: JAPANESE INTERMEDIATE CODE: A621

Effective date: 20100616

A977 Report on retrieval

Free format text: JAPANESE INTERMEDIATE CODE: A971007

Effective date: 20120314

A131 Notification of reasons for refusal

Effective date: 20120316

Free format text: JAPANESE INTERMEDIATE CODE: A131

A521 Written amendment

Effective date: 20120511

Free format text: JAPANESE INTERMEDIATE CODE: A523

A02 Decision of refusal

Effective date: 20120803

Free format text: JAPANESE INTERMEDIATE CODE: A02