JPH0511271U - Insulation nozzle for gas circuit breaker - Google Patents

Insulation nozzle for gas circuit breaker

Info

Publication number
JPH0511271U
JPH0511271U JP6546291U JP6546291U JPH0511271U JP H0511271 U JPH0511271 U JP H0511271U JP 6546291 U JP6546291 U JP 6546291U JP 6546291 U JP6546291 U JP 6546291U JP H0511271 U JPH0511271 U JP H0511271U
Authority
JP
Japan
Prior art keywords
circuit breaker
gas circuit
arc
nozzle
insulating nozzle
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.)
Granted
Application number
JP6546291U
Other languages
Japanese (ja)
Other versions
JP2559486Y2 (en
Inventor
清 牛島
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.)
Nissin Electric Co Ltd
Original Assignee
Nissin Electric Co 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 Nissin Electric Co Ltd filed Critical Nissin Electric Co Ltd
Priority to JP1991065462U priority Critical patent/JP2559486Y2/en
Publication of JPH0511271U publication Critical patent/JPH0511271U/en
Application granted granted Critical
Publication of JP2559486Y2 publication Critical patent/JP2559486Y2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Abstract

(57)【要約】 【目的】 耐アーク性が良好でかつ安価なガス遮断器用
絶縁ノズルを提供する。 【構成】 ガス遮断器の遮断状態における固定接触子1
と可動接触子2間に位置した先端ポート部9bの少なく
とも内周部を耐アーク材料で、他の部分を補助材料でそ
れぞれ構成すると共に、これらを高圧一体成形してガス
遮断器用絶縁ノズル9を形成する。
(57) [Abstract] [Purpose] To provide an insulating nozzle for a gas circuit breaker, which has good arc resistance and is inexpensive. [Constitution] Fixed contactor 1 in the cut-off state of the gas circuit breaker
At least the inner peripheral portion of the tip port portion 9b located between the movable contactor 2 and the movable contactor 2 is made of an arc resistant material, and the other portion is made of an auxiliary material. Form.

Description

【考案の詳細な説明】[Detailed description of the device]

【0001】[0001]

【産業上の利用分野】[Industrial applications]

本考案は、ガス遮断器において、固定接触子と可動接触子間に発生したアーク に消弧性ガスのガス流を導くガス遮断器用絶縁ノズルに関する。 The present invention relates to an insulating nozzle for a gas circuit breaker, which guides a gas flow of arc-extinguishing gas to an arc generated between a fixed contact and a movable contact in a gas circuit breaker.

【0002】[0002]

【従来の技術】[Prior Art]

図4は、従来の絶縁ノズルを用いたパッファ式ガス遮断器を示したものであり 、SF6 ガス等の消弧性ガスが充填された消弧室において、パイプ状の固定接触 子1とこれに接離するパイプ状の可動接触子2とが同軸に対向配置され、可動接 触子2の外側にパッファ室3を形成するシリンダ4が一体に設けられると共に、 シリンダ4の内側に配置したピストン5が遮断器本体に固定されている。FIG. 4 shows a conventional puffer-type gas circuit breaker using an insulating nozzle. In a arc-extinguishing chamber filled with an arc-extinguishing gas such as SF 6 gas, a pipe-shaped fixed contact 1 and A pipe-shaped movable contactor 2 which is brought into contact with and separated from the movable contactor 2 is coaxially opposed to the movable contactor 2, and a cylinder 4 forming a puffer chamber 3 is integrally provided outside the movable contactor 2 and a piston arranged inside the cylinder 4. 5 is fixed to the circuit breaker body.

【0003】 シリンダ4の先端部には、可動接触子2の先端部を覆うように絶縁ノズル6が 取付金具7を用いて取り付けられている。この絶縁ノズル6はその先端ポート部 6aが遮断状態において両接触子1,2間に位置するよう配置されている。 そして、投入状態より可動接触子2を図中左方へ移動して遮断動作を行うと、 可動接触子2と同時にシリンダ4も左方へ移動し、ピストン5が固定されている ため、パッファ室3の消弧性ガスが圧縮され、その圧力を蓄勢していく。An insulating nozzle 6 is attached to the tip of the cylinder 4 using a mounting member 7 so as to cover the tip of the movable contact 2. The insulating nozzle 6 is arranged so that the tip port portion 6a thereof is located between the contacts 1 and 2 in a blocked state. When the movable contactor 2 is moved leftward in the drawing from the closed state to perform the shutoff operation, the movable contactor 2 and the cylinder 4 are also moved leftward at the same time, and the piston 5 is fixed. The arc-extinguishing gas of No. 3 is compressed, and the pressure is accumulated.

【0004】 可動接触子2が固定接触子1より開離すると、両接触子1,2間にアーク8が 発生するが、パッファ室3で圧縮された消弧性ガスが絶縁ノズル6により両接触 子1,2間に案内されるようになるので、このガスがアーク8に吹き付けられ、 アーク8が消滅し、遮断が完了する。When the movable contactor 2 is separated from the fixed contactor 1, an arc 8 is generated between the contactors 1 and 2, but the arc-extinguishing gas compressed in the puffer chamber 3 is contacted by the insulating nozzle 6. As it is guided between the children 1 and 2, this gas is blown to the arc 8, the arc 8 is extinguished, and the interruption is completed.

【0005】 ところで、前述した従来の絶縁ノズル6は、パウダー状にしたテフロン(ポリ テトラルオロエチレン)あるいはアルミナAl2 3 (5〜10%)入りテフロ ンもしくはボロンBN(窒化ホウ素)入りテフロンを金型等により高圧圧縮成形 して構成され、成形後,バイトにより切削し、所要寸法を出すようにしている。By the way, the above-described conventional insulating nozzle 6 is made of powdered Teflon (polytetrafluoroethylene) or Teflon containing alumina Al 2 O 3 (5 to 10%) or Teflon containing boron BN (boron nitride). Is formed by high-pressure compression molding using a mold, etc. After molding, it is cut with a cutting tool to obtain the required dimensions.

【0006】[0006]

【考案が解決しょうとする課題】[Problems to be solved by the device]

ところが、従来の絶縁ノズル6では、テフロンのみで構成した場合、切削性が 良く安価に得られる反面、耐アーク性が悪い欠点があり、また、アルミナあるい はボロンを混入したもので構成した場合、耐アーク性が良好になるものの、切削 性が悪くかつ高価になる欠点があり、特に遮断器の定格電圧が高くなると絶縁ノ ズル6も大形になり、より高価なものになってしまう。 However, when the conventional insulating nozzle 6 is made of only Teflon, it has good machinability and can be obtained at low cost, but it has the drawback of poor arc resistance. Although the arc resistance is improved, the machinability is poor and the cost is high. Especially, when the rated voltage of the circuit breaker becomes high, the insulating nozzle 6 becomes large in size and becomes more expensive.

【0007】 本考案は、従来の技術の有するこのような問題点に留意してなされたものであ り、その目的とするところは、耐アーク性が良好でかつ安価なガス遮断器用絶縁 ノズルを提供することにある。The present invention has been made in view of the above problems of the conventional technique, and an object of the present invention is to provide an inexpensive insulating nozzle for a gas circuit breaker having good arc resistance. To provide.

【0008】[0008]

【課題を解決するための手段】[Means for Solving the Problems]

前記目的を達成するために、本考案のガス遮断器用絶縁ノズルにおいては、ガ ス遮断器の遮断状態における固定接触子と可動接触子間に位置する先端ポート部 の少なくとも内周部を構成する耐アーク材料と他の部分を構成する補助材料とを 高圧一体成形するようにしたものである。 In order to achieve the above-mentioned object, in the insulated nozzle for a gas circuit breaker of the present invention, at least the inner peripheral portion of the tip port portion located between the fixed contact and the movable contact in the interrupted state of the gas circuit breaker is constructed. The arc material and the auxiliary material forming the other parts are integrally molded under high pressure.

【0009】[0009]

【作用】[Action]

前述した構成の絶縁ノズルにあっては、アークにさらされ最も消耗が激しい部 分,すなわち先端ポート部の内面が耐アーク材料により構成されるため、耐アー ク性が良好となり、しかも、他の部分が安価なテフロン等の補助材料で構成され るため、低コスト化が可能となり、大形化するほどコストメリットが高くなる。 In the insulating nozzle with the above-mentioned configuration, the part that is exposed to the arc and is most consumed, that is, the inner surface of the tip port part is made of an arc resistant material, so that the arc resistance is good and Since the part is made of an inexpensive auxiliary material such as Teflon, the cost can be reduced, and the larger the size, the higher the cost merit.

【0010】[0010]

【実施例】【Example】

実施例につき、図1〜図3を用いて説明する。 まず、図1は、本考案をパッファ式ガス遮断器に適用した場合の実施例1を示 し、前記図4と異なる点は、可動接触子2に一体のシリンダ4の先端部に取付金 具7を用いて取り付けられた絶縁ノズル9であり、可動接触子2の先端部を覆う 基部9aを安価なテフロンにより構成すると共に、遮断状態において固定接触子 1と可動接触子2間に位置する先端ポート部9bをテフロン中にアルミナ又はボ ロンを充填した耐アーク材料により構成し、これらを高圧一体成形して絶縁ノズ ル9を得るようにしたものである。 Examples will be described with reference to FIGS. 1 to 3. First, FIG. 1 shows an embodiment 1 in which the present invention is applied to a puffer type gas circuit breaker. The difference from FIG. 4 is that a metal fitting is attached to the tip of a cylinder 4 integral with a movable contact 2. 7 is an insulating nozzle 9 mounted by using an inexpensive nozzle Teflon for covering the tip of the movable contact 2, and a tip located between the fixed contact 1 and the movable contact 2 in the cutoff state. The port 9b is made of an arc resistant material in which Teflon is filled with alumina or boron, and these are integrally molded under high pressure to obtain the insulating nozzle 9.

【0011】 これによると、アークにさらされる先端ポート部9bが耐アーク材料により構 成されているため、耐アーク性が良好となり、それ以外の基部9aが補助材料つ まりテフロンにより構成されるため、ノズル全体を耐アーク材料で構成した場合 に比べ安価になる。According to this, since the tip port portion 9b exposed to the arc is made of the arc resistant material, the arc resistance is good, and the other base portion 9a is made of the auxiliary material, that is, Teflon. It is cheaper than the case where the entire nozzle is made of arc resistant material.

【0012】 つぎに、図2に示した実施例2は、ノズル本体10aを安価なテフロンで構成 すると共に、先端ポート部10bの内周部のみに前述したような耐アーク材料を 高圧一体成形してポート内層部10cを形成し、絶縁ノズル10を得るようにし たものである。Next, in the second embodiment shown in FIG. 2, the nozzle body 10a is made of inexpensive Teflon, and the arc resistant material as described above is integrally formed on only the inner peripheral portion of the tip port portion 10b under high pressure. The inner layer portion 10c of the port is formed to obtain the insulating nozzle 10.

【0013】 さらに、図3に示した実施例3は、テフロンよりなるノズル本体11aの内面 ,すなわち先端ポート部11bの内周部を含む全内面に耐アーク材料の高圧一体 成形により内層部11cを形成し、絶縁ノズル11を形成したものである。Further, in the third embodiment shown in FIG. 3, the inner layer portion 11c is formed on the inner surface of the nozzle body 11a made of Teflon, that is, the entire inner surface including the inner peripheral portion of the tip port portion 11b by high pressure integral molding of an arc resistant material. The insulating nozzle 11 is formed.

【0014】[0014]

【考案の効果】[Effect of the device]

本考案は、以上説明したように構成されているため、つぎに記載する効果を奏 する。 ガス遮断器の遮断状態において固定接触子と可動接触子間に位置する先端ポー ト部の少なくとも内周部が耐アーク材料により構成されるため、耐アーク性が良 好となり、しかも、他の部分がテフロン等の補助材料で構成されるため、ノズル 全体を耐アーク材料で構成した場合に比べ安価となり、ノズルが大形化するほど このコストメリットが高まるものである。 Since the present invention is configured as described above, it has the following effects. When the gas circuit breaker is in the shut-off state, at least the inner circumference of the tip port located between the fixed contact and the movable contact is made of arc-resistant material, so arc resistance is excellent, and other parts Since it is composed of an auxiliary material such as Teflon, it is cheaper than when the entire nozzle is composed of an arc-resistant material, and the cost advantage increases as the size of the nozzle increases.

【0015】 さらに、耐アーク材料と補助材料とを高圧一体成形して絶縁ノズルを形成する ため、耐アーク材料のみで構成した従来のものに比べ切削加工が短縮され、バイ トの消耗を少なくできる効果がある。Further, since the arc resistant material and the auxiliary material are integrally molded under high pressure to form the insulating nozzle, the cutting process is shortened and the consumption of the bit can be reduced as compared with the conventional one constituted only by the arc resistant material. effective.

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

【図1】本考案によるガス遮断器用絶縁ノズルの実施例
1を示す遮断部の断面図である。
FIG. 1 is a cross-sectional view of a blocking part showing a first embodiment of an insulating nozzle for a gas circuit breaker according to the present invention.

【図2】本考案の実施例2を示す絶縁ノズルの断面図で
ある。
FIG. 2 is a sectional view of an insulating nozzle according to a second embodiment of the present invention.

【図3】本考案の実施例3を示す絶縁ノズルの断面図で
ある。
FIG. 3 is a sectional view of an insulating nozzle according to a third embodiment of the present invention.

【図4】従来の絶縁ノズルを用いた遮断部の断面図であ
る。
FIG. 4 is a cross-sectional view of a blocking unit using a conventional insulating nozzle.

【符号の説明】[Explanation of symbols]

1 固定接触子 2 可動接触子 9,10,11 絶縁ノズル 9b,10b,11b 先端ポート部 1 Fixed Contact 2 Movable Contact 9, 10, 11 Insulation Nozzle 9b, 10b, 11b Tip Port Portion

Claims (1)

【実用新案登録請求の範囲】 【請求項1】 先端ポート部がガス遮断器の遮断状態に
おける固定接触子と可動接触子間に位置し、前記両接触
子の開離時に発生したアークに消弧性ガスのガス流を導
くガス遮断器用絶縁ノズルであって、前記先端ポート部
の少なくとも内周部を構成する耐アーク材料と他の部分
を構成する補助材料とを高圧一体成形したことを特徴と
するガス遮断器用絶縁ノズル。
[Claims for utility model registration] [Claim 1] The tip port is located between the fixed contact and the movable contact when the gas circuit breaker is in the cutoff state, and the arc generated when the both contacts are separated is extinguished. An insulating nozzle for a gas circuit breaker for guiding a gas flow of a noble gas, characterized in that an arc resistant material forming at least the inner peripheral portion of the tip port portion and an auxiliary material forming another portion are integrally molded under high pressure. Insulation nozzle for gas circuit breaker.
JP1991065462U 1991-07-23 1991-07-23 Insulation nozzle for gas circuit breaker Expired - Lifetime JP2559486Y2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1991065462U JP2559486Y2 (en) 1991-07-23 1991-07-23 Insulation nozzle for gas circuit breaker

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1991065462U JP2559486Y2 (en) 1991-07-23 1991-07-23 Insulation nozzle for gas circuit breaker

Publications (2)

Publication Number Publication Date
JPH0511271U true JPH0511271U (en) 1993-02-12
JP2559486Y2 JP2559486Y2 (en) 1998-01-19

Family

ID=13287819

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1991065462U Expired - Lifetime JP2559486Y2 (en) 1991-07-23 1991-07-23 Insulation nozzle for gas circuit breaker

Country Status (1)

Country Link
JP (1) JP2559486Y2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS53150789U (en) * 1977-04-30 1978-11-28

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5363577A (en) * 1976-11-19 1978-06-07 Tokyo Shibaura Electric Co Buffer type gas breaker
JPS58161980A (en) * 1982-03-18 1983-09-26 三菱電機株式会社 Composite ceramic material

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5363577A (en) * 1976-11-19 1978-06-07 Tokyo Shibaura Electric Co Buffer type gas breaker
JPS58161980A (en) * 1982-03-18 1983-09-26 三菱電機株式会社 Composite ceramic material

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS53150789U (en) * 1977-04-30 1978-11-28

Also Published As

Publication number Publication date
JP2559486Y2 (en) 1998-01-19

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