KR101239741B1 - Knife-blade of contacting apparatus for apartment house - Google Patents

Knife-blade of contacting apparatus for apartment house Download PDF

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Publication number
KR101239741B1
KR101239741B1 KR1020120151103A KR20120151103A KR101239741B1 KR 101239741 B1 KR101239741 B1 KR 101239741B1 KR 1020120151103 A KR1020120151103 A KR 1020120151103A KR 20120151103 A KR20120151103 A KR 20120151103A KR 101239741 B1 KR101239741 B1 KR 101239741B1
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South Korea
Prior art keywords
contact
movable contacts
movable
contacts
fixed
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KR1020120151103A
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Korean (ko)
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신동민
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(주)금정이엔씨
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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
    • H01H33/60—Switches wherein the means for extinguishing or preventing the arc do not include separate means for obtaining or increasing flow of arc-extinguishing fluid
    • H01H33/66—Vacuum switches
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H1/00—Contacts
    • H01H1/12—Contacts characterised by the manner in which co-operating contacts engage
    • H01H1/36—Contacts characterised by the manner in which co-operating contacts engage by sliding
    • H01H1/42—Knife-and-clip contacts
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
    • H01H33/60—Switches wherein the means for extinguishing or preventing the arc do not include separate means for obtaining or increasing flow of arc-extinguishing fluid
    • H01H33/66—Vacuum switches
    • H01H33/664—Contacts; Arc-extinguishing means, e.g. arcing rings
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
    • H02B13/00—Arrangement of switchgear in which switches are enclosed in, or structurally associated with, a casing, e.g. cubicle
    • H02B13/02—Arrangement of switchgear in which switches are enclosed in, or structurally associated with, a casing, e.g. cubicle with metal casing
    • H02B13/035—Gas-insulated switchgear

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Contacts (AREA)

Abstract

PURPOSE: A movable contact point device of a knife blade for an apartment house is provided to prevent a contact failure by composing the movable contact point to be moved in parallel by a parallel link. CONSTITUTION: An insulation sleeve(100) is inserted into the center of a rotation ring(30). The insulation sleeve is fixed by a ring nut(106) which is combined with a screw thread. A key(108) combined with a key groove is formed at a flange. A spline shaft(200) is inserted into a spline hole. The spline hole is formed at the center of the insulation sleeve. [Reference numerals] (AA) R phase; (BB) S phase; (CC) T phase

Description

공동주택용 나이프블레이드의 가동접점장치{Knife-blade of Contacting Apparatus for Apartment House}Knife-blade of Contacting Apparatus for Apartment House}

본 발명은 공동주택용 나이프블레이드의 가동접점장치에 관한 것으로, 더욱 상세하게는 가동접점을 평행링크에 의해 고정접점으로부터 평행하게 움직이도록 하여 접점불량을 방지하도록 한 공동주택용 나이프블레이드의 가동접점장치에 관한 것이다.The present invention relates to a movable contact device for a knife blade for a multi-family house, and more particularly, to a movable contact device for a knife blade for a multi-family house to move the movable contact in parallel from the fixed contact by a parallel link to prevent contact failure. will be.

일반적으로 배전 및 수전 선로에 위치하는 고압 전기 기기에는 부하전류 및 무부하 전류의 투입/개방을 위해 주회로 모선에 움직임이 가능한 접점부가 구성된다. 이러한 접점부는 접촉형태에 따라 크게 세 가지의 형태로 구분된다. 첫째로 고압 진공차단기에 사용하는 진공인터럽터의 접촉형태인 버트콘택트(Butt Contact) 접점부이다. In general, high-voltage electrical equipment located in the distribution and receiving lines includes a contact portion that can move to the main circuit busbar for input / opening of load current and no load current. These contact parts are classified into three types according to the contact form. First, butt contact (Butt Contact) contact part which is a contact type of vacuum interrupter used in high pressure vacuum circuit breaker.

상기 버트 컨택트 접점부는 가동접점과 고정접점이 일직선상에 마주하고 있는 구조로서, 가동접점의 한 끝에 압축코일스프링이 설치되어 가동접점과 고정접점의 접촉력을 가압시키는 구조이다. The butt contact contact portion is a structure in which the movable contact and the fixed contact face in a straight line. A compression coil spring is installed at one end of the movable contact to pressurize the contact force between the movable contact and the fixed contact.

두 번째 방식은 튜울립 콘택트(Tulip Contact) 접점부이다. 이는 고압 진공차단기의 1, 2차측 단자부나 GIS의 모선 통전부에 사용되는 것으로서, 원형봉과 슬롯이 있는 튜브 형태의 고정접점과 가동접점 형태로 구성되며 슬롯이 있는 튜브구조의 접점 둘레로 원형 코일스프링을 설치하여 가동접점과 고정접점의 접촉력을 가압시키는 구조이다. The second method is a Tulip Contact contact. It is used for the primary and secondary terminals of high-pressure vacuum circuit breakers or the busbar energization part of GIS. It consists of a fixed contact and a movable contact in the form of a tube with a round rod and a slot, and a circular coil spring around the contact of the tube structure with a slot. It is designed to press the contact force between movable contact and fixed contact.

세 번째 방식은 LBS나 GIS의 D/S 및 접지스위치에 주로 사용되는 나이프블레이드(Knife Blade) 접점부이다. 이는 2개의 얇은 가동접점의 양측에 압축코일스프링이 설치되고, 그 가동접점 사이로 고정접점이 삽입되어 고정접점과 가동접점이 통전되는 구조로 되어 있으며, 가동접점의 양측에 설치되는 코일스프링에 의해 접촉력이 유지되는 구조이다.The third method is Knife Blade contact which is mainly used for D / S and ground switch of LBS or GIS. Compression coil springs are installed on both sides of the two thin movable contacts, and the fixed contact is inserted between the movable contacts so that the fixed contact and the movable contact are energized. The contact force is provided by the coil springs installed on both sides of the movable contact. This is a structure that is maintained.

상기 나이프블레이드의 종래기술로 국내 특허출원번호 제 10-2002-59605호(이하, "종래기술1" 이라 함)의 "나이프 블레이드의 가동접점장치"와, 국내 특허출원번호 제 10-2006-0042150호(이하, "종래기술2" 라 함)의 "공동주택용 나이프블레이드의 가동접점장치"가 제안된 바 있다.As the conventional technology of the knife blade, "Knife blade movable contact device" of Korean Patent Application No. 10-2002-59605 (hereinafter referred to as "prior art 1"), and Domestic Patent Application No. 10-2006-0042150 The "moving contact apparatus of knife blades for public housing" of Ho (hereinafter referred to as "prior art 2") has been proposed.

그러나, 이와 같은 종래기술1 및 종래기술2는 첨부도면 도 1에 도시된 바와 같이 모두 가동접점(10)(12)의 고정된 상태에서 탄성을 갖고 고정접점(14)에 접촉하도록 되어 있었기 때문에 가동접점(10)(12)이 휘면서 고정접점(14)으로부터 들뜨면서 접촉불량이 발생되는 문제점이 있었으며, 이러한 들뜸은 가동접점(10)(12)과 고정접점(14)의 마모가 진행될수록 더욱 심화되었다.However, since the prior art 1 and the prior art 2 are both elastic in the fixed state of the movable contacts 10 and 12 as shown in the accompanying drawings, the movable contact 14 is movable. There was a problem in that contact failure occurred while lifting from the fixed contact 14 while the contacts 10 and 12 were bent, and such lifting is more likely as the wear of the movable contacts 10 and 12 and the fixed contact 14 progresses. Deepened.

본 발명은 상기와 같은 문제점을 해결하기 위하여 이루어진 것으로, 그 목적은 공동주택의 건설시 전류의 투입 개방을 위해 고압 전기 기기의 모선에 위치하는 나이프블레이드의 가동접점장치의 성능을 개선한 공동주택용 나이프블레이드의 가동접점장치를 제공하는데 있다.The present invention has been made to solve the above problems, the object of which is to improve the performance of the movable contact device of the knife blade located in the busbar of the high-voltage electric machine for the input and opening of the current in the construction of the multi-family house It is to provide a movable contact device of the blade.

이러한 본 발명의 목적을 달성하기 위하여 키홈이 형성된 회전링의 상하부에 접점지지부를 형성하고, 접점지지부의 전후면에 링크지지판을 평행하게 설치하며, 고정접점의 좌우측에 위치되는 가동접점을 평행링크에 의해 링크지지판에 설치하고, 가동접점의 하단부를 플렉시블통전선에 의해 접점지지부에 접속하며, 고정접점을 향해 서로 가까워지는 방향으로 좌우측의 가동접점에 탄성력을 가하는 인장스프링을 가동접점에 설치된 스프링걸림핀에 설치하고, 인장스프링이 위치되는 스프링간섭방지구멍을 가동접점에 형성하며, 링크지지판에 걸려서 양측 가동접점간의 간극을 제한하는 스토퍼를 평행링크에 설치하고, 플랜지를 갖는 절연슬리브를 회전링의 중심으로 삽입하여 절연슬리브의 외주면에 형성된 나사산에 결합되는 링너트에 의해 고정하며, 키홈에 결합되는 키를 플랜지에 형성하고, 절연슬리브의 중심에 형성된 스플라인구멍에 스플라인축을 삽입하여 공동주택용 나이프블레이드의 가동접점장치가 제공된다.In order to achieve the object of the present invention, the contact support is formed on the upper and lower portions of the rotary ring formed with the key groove, and the link support plate is installed in parallel on the front and rear surfaces of the contact support, and the movable contact located on the left and right sides of the fixed contact is connected to the parallel link. Spring retaining pins installed on the movable contacts by tension springs installed on the link support plates, which connect the lower ends of the movable contacts to the contact supports by flexible conducting wires, and apply elastic springs to the movable contacts on the left and right sides toward each other toward the fixed contacts. A spring interference prevention hole in which the tension spring is located is formed in the movable contact point, and a stopper is formed in the parallel link to hang the link support plate to limit the gap between the movable contact points on both sides, and an insulating sleeve having a flange is provided at the center of the rotating ring. Fastened by a ring nut which is inserted into the thread and joined to a thread formed on the outer circumferential surface of the insulating sleeve In addition, a key coupled to the key groove is formed in the flange, the spline shaft is inserted into the spline hole formed in the center of the insulating sleeve is provided for the movable contact device of the knife blade for the apartment house.

이상에서 설명한 바와 같은 본 발명은 가동접점이 평행링크에 의해 평행하게 움직이도록 구성되어 있기 때문에 가동접점이 고정접점의 좌우측면에 면접촉되어 접촉불량을 방지할 수 있는 효과가 있다.According to the present invention as described above, since the movable contact is configured to move in parallel by the parallel link, the movable contact is in surface contact with the left and right sides of the fixed contact, thereby preventing contact failure.

더욱이 본 발명은 가동접점과 고정접점이 마모가 진행되는 경우에도 가동접점이 평행링크에 의해 평행하게 움직이도록 구성되어 있기 때문에 통전능력을 그대로 유지할 수 있는 효과도 있다.Further, the present invention has the effect of maintaining the current carrying capacity as the movable contact and the fixed contact is configured to move in parallel by the parallel link even when the wear progresses.

도 1은 종래 가동접점의 휨변형을 개략적으로 보인 도면
도 2는 본 발명을 보인 사시도
도 3은 도2의 상태로부터 스플라인축이 회전하여 가동접점이 고정접점으로부터 떨어진 상태를 보인 사시도
도 4는 본 발명을 보인 정면도
도 5는 본 발명을 보인 측면도
도 6은 본 발명을 보인 평면도
도 7은 본 발명의 요부를 보인 분해사시도
도 8은 본 발명의 요부확대 사시도
도 9는 본 발명의 요부확대 정면도
도 10은 본 발명에 따른 가동접점이 고정접점으로부터 떨어진 상태를 보인 요부확대 단면도1 is a view schematically showing the bending deformation of a conventional movable contact
2 is a perspective view of the present invention
3 is a perspective view showing a state in which the spline shaft rotates from the state of FIG.
4 is a front view showing the present invention
5 is a side view showing the present invention
6 is a plan view showing the present invention
Figure 7 is an exploded perspective view showing the main part of the present invention
8 is an enlarged perspective view of main parts of the present invention;
9 is an enlarged front view of main parts of the present invention;
Figure 10 is an enlarged cross-sectional view showing the main portion showing a state in which the movable contact according to the present invention is separated from the fixed contact

이하 본 발명에 따른 실시예를 첨부도면을 참조하여 상세히 설명한다.Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

첨부도면 도 2 내지 도 10에 도시된 바와 같이 키홈(31)이 형성된 회전링(30)의 상하부에 접점지지부(32)(33)를 일체로 형성하고, 접점지지부(32)(33)의 전후면에 링크지지판(40)(42)을 평행하게 설치하며, 고정접점(20)(22)의 좌우측에 위치되는 가동접점(50)(52)을 평행링크(60)(61)(62)(63)(70)(71)(72)(73)에 의해 링크지지판(40)(42)에 설치하고, 가동접점(50)(52)의 하단부를 플렉시블통전선(80)(82)에 의해 접점지지부(32)(33)에 접속한다.2 to 10, contact support parts 32 and 33 are integrally formed on upper and lower parts of the rotary ring 30 in which the key grooves 31 are formed, and before and after the contact support parts 32 and 33. Link support plates 40 and 42 are installed on the surface in parallel, and movable contacts 50 and 52 positioned on the left and right sides of the fixed contacts 20 and 22 are parallel links 60, 61 and 62 ( 63, 70, 71, 72, and 73 are installed on the link support plates 40, 42, and the lower ends of the movable contacts 50, 52 are supported by the flexible conducting wires 80, 82. It is connected to the contact support parts 32 and 33.

상기 링크지지판(40)(42)을 접점지지부(32)(33)에 고정하기 위해 접점지지부(32)(33)에 탭구멍(35)을 형성하고, 탭구멍(35)과 중심이 일치되는 체결공(45)(46)을 링크지지판(40)(42)에 형성하여 탭구멍(35)에 결합되는 볼트(47)(48)에 의해 고정한다.In order to fix the link support plates 40 and 42 to the contact support parts 32 and 33, tab holes 35 are formed in the contact support parts 32 and 33, and the centers of the tab support holes 35 are coincident with each other. The fastening holes 45 and 46 are formed in the link support plates 40 and 42 and fixed by bolts 47 and 48 coupled to the tab holes 35.

또한, 링크지지판(40)(42)과 가동접점(50)(52) 사이에서 이들 링크지지판(40)(42)과 가동접점(50)(52)을 연결하는 평행링크(60)(61)(62)(63)(70)(71)(72)(73)의 전후면에는 핀(64)(65)을 설치하고, 핀구멍(49)(59)을 링크지지판(40)(42)과 가동접점(50)(52)에 형성하며, 그 핀구멍(49)(59)에 핀(64)(65)을 삽입하여 핀구멍(49)(59)을 통해 돌출된 핀(64)(65)의 외주면에 스냅링(78)(79)을 설치하여 핀구멍(49)(59)으로부터 핀(64)(65)이 이탈되지 못하도록 한다.Further, parallel links 60 and 61 connecting the link support plates 40 and 42 and the movable contacts 50 and 52 between the link support plates 40 and 42 and the movable contacts 50 and 52. Pins 64, 65 are provided on the front and rear surfaces of the 62, 63, 70, 71, 72, and 73, and the pin holes 49, 59 are provided with the link support plates 40, 42. And pins 64 formed on the movable contacts 50 and 52 and protruding through the pin holes 49 and 59 by inserting the pins 64 and 65 into the pin holes 49 and 59. The snap rings 78 and 79 are provided on the outer circumferential surface of the 65 to prevent the pins 64 and 65 from being separated from the pin holes 49 and 59.

즉, 링크지지판(40)(42)과 가동접점(50)(52)을 연결하는 평행링크(60)(61)(62)(63)(70)(71)(72)(73)는 고정접점(20)(22)의 중심으로부터 전후방향 및 좌우방향으로 대칭되게 배치하여 좌우측의 가동접점(50)(52)이 평행하게 움직이도록 설치하고, 바람직하게는 복수의 평행링크(60)(61)(62)(63)(70)(71)(72)(73)를 모두 동일한 모양과 크기를 갖도록 형성한다.That is, the parallel links 60, 61, 62, 63, 70, 71, 72 and 73 which connect the link support plates 40 and 42 and the movable contacts 50 and 52 are fixed. Arranged symmetrically in the front-back direction and the left-right direction from the center of the contacts 20, 22 so that the movable contacts 50, 52 on the left and right sides may move in parallel, Preferably, the plurality of parallel links 60, 61 62, 63, 70, 71, 72, and 73 are formed to have the same shape and size.

상기 플렉시블통전선(80)(82)을 가동접점(50)(52)과 접점지지부(32)(33)에 연결하기 위해 플렉시블통전선(80)(82)의 상단부와 가동접점(50)(52)의 하단부에 각각 중심이 일치되는 리벳구멍(55)(85)을 형성하여 리벳(57)에 의해 플렉시블통전선(80)(82)의 상단부를 가동접점(50)(52)의 하단부에 결합한다.In order to connect the flexible conductive wires 80 and 82 to the movable contacts 50 and 52 and the contact supporting portions 32 and 33, the upper ends of the flexible conductive lines 80 and 82 and the movable contacts 50 ( Rivet holes 55 and 85 are formed at the lower ends of the ends 52, respectively, and the upper ends of the flexible conducting wires 80 and 82 are formed at the lower ends of the movable contacts 50 and 52 by means of rivets 57, respectively. To combine.

또한, 플렉시블통전선(80)(82)의 하단부에 볼트구멍(86)을 형성하고, 볼트구멍(86)과 중심이 일치되는 나사구멍(36)을 접점지지부(32)(33)에 형성하여 스크류(37)에 의해 플렉시블통전선(80)(82)의 하단부를 접점지지부(32)(33)에 고정한다.In addition, a bolt hole 86 is formed at the lower ends of the flexible conducting wires 80 and 82, and a screw hole 36 is formed in the contact supporting portions 32 and 33, the center of which coincides with the bolt hole 86. The lower ends of the flexible conducting wires 80 and 82 are fixed to the contact supporting parts 32 and 33 by screws 37.

또, 플렉시블통전선(80)(82)은 가느다란 여러 가닥의 동선을 플랫케이블 형태로 편조하여 제작한 것을 이용할 수 있으며, 가동접점(50)(52)이 저항을 덜 받도록 하기 위해 플렉시블통전선(80)(82)의 중간에 주름을 형성할 수 있다.In addition, the flexible conducting wires 80 and 82 may be manufactured by braiding a plurality of thin copper wires in the form of a flat cable, and the flexible contact wires 50 and 52 may receive less resistance. A wrinkle can be formed in the middle of (80) (82).

그리고, 고정접점(20)(22)을 향해 서로 가까워지는 방향으로 좌우측의 가동접점(50)(52)에 탄성력을 가하는 인장스프링(90)을 가동접점(50)(52)에 설치된 스프링걸림핀(92)(94)에 설치하고, 인장스프링(90)이 위치되는 스프링간섭방지구멍(54)(56)을 가동접점(50)(52)에 형성한다.Then, a spring engaging pin provided at the movable contacts 50 and 52 is provided with a tension spring 90 for applying an elastic force to the movable contacts 50 and 52 on the left and right sides toward the fixed contacts 20 and 22. (92) and (94), and spring interference prevention holes (54) and (56) in which the tension spring (90) is located are formed in the movable contacts (50) and (52).

이와 같은 스프링간섭방지구멍(54)(56)은 가동접점(50)(52)이 움직일 때 인장스프링(90)이 가동접점(50)(52)에 접촉되지 못하도록 하기 위해 형성한 것으로, 좌우방향으로 관통되게 형성한다.The spring interference preventing holes 54 and 56 are formed to prevent the tension spring 90 from contacting the movable contacts 50 and 52 when the movable contacts 50 and 52 move. It is formed to penetrate through.

또, 인장스프링(90)이 걸리는 스프링걸림핀(92)(94)의 중간에는 환형홈(95)을 형성하여 인장스프링(90)이 전후방향으로 움직이는 것을 방지하며, 스프링걸림핀(92)(94)의 일측단부에는 머리부(96)를 형성하고, 타측단에는 멈춤링(97)을 설치하여 스프링걸림핀(92)(94)이 가동접점(50)(52)으로부터 이탈되는 것을 방지한다.In addition, an annular groove 95 is formed in the middle of the spring engaging pins 92 and 94 to which the tension springs 90 are applied to prevent the tension springs 90 from moving forward and backward, and the spring engagement pins 92 ( A head 96 is formed at one end of the 94 and a stop ring 97 is installed at the other end to prevent the spring catching pins 92 and 94 from being separated from the movable contacts 50 and 52. .

또한, 스프링걸림핀(92)(94)을 가동접점(50)(52)에 설치하기 위해 가동접점(50)(52)에 전후방향으로 관통된 원형구멍(51)(53)을 형성하고, 이를 통해 스프링걸림핀(92)(94)을 삽입하여 설치한다.Further, in order to install the spring engaging pins 92 and 94 at the movable contacts 50 and 52, circular holes 51 and 53 are formed through the movable contacts 50 and 52 in the front and rear directions. This inserts and installs spring engaging pins 92 and 94.

상기 링크지지판(40)(42)에 걸려서 양측 가동접점(50)(52)간의 간극을 제한하는 적어도 하나의 스토퍼(66)(76)를 평행링크(60)(61)(62)(63)(70)(71)(72)(73)에 설치한다.At least one stopper 66, 76, which is caught by the link support plates 40, 42 and limits the gap between the two movable contacts 50, 52, is parallel links 60, 61, 62, 63. (70) (71) 72 (73).

또한, 첨부도면 도 5 및 도 10에 도시된 바와 같이 스토퍼(66)(76)에 의해 제한되는 가동접점(50)(52) 간의 간극(G)은 고정접점(20)(22)의 좌우방향 두께(W) 보다 약간 작은 거리를 갖도록 하여 가동접점(50)(52)이 고정접점(20)(22)의 좌우측에 밀착되었을 때 인장스프링(90)에 의해 압력을 받아 강한 접촉이 이루어지도록 하는 동시에 가동접점(50)(52)과 고정접점(20)(22)이 마모되었을 때에도 접촉압력을 유지할 수 있도록 한다.In addition, as shown in FIGS. 5 and 10, the gap G between the movable contacts 50 and 52, which is limited by the stoppers 66 and 76, is the left and right directions of the fixed contacts 20 and 22. It has a distance slightly smaller than the thickness (W) so that when the movable contact (50) (52) is in close contact with the left and right sides of the fixed contact (20) (22) is pressed by the tension spring 90 to make a strong contact At the same time, it is possible to maintain contact pressure even when the movable contacts 50, 52 and the fixed contacts 20, 22 are worn.

한편, 플랜지(102)를 갖는 절연슬리브(100)를 회전링(30)의 중심으로 삽입하여 절연슬리브(100)의 외주면에 형성된 나사산(104)에 결합되는 링너트(106)에 의해 고정하며, 키홈(31)에 결합되는 예컨대 사각형의 키(108)를 플랜지(102)에 형성하고, 절연슬리브(100)의 중심에 형성된 스플라인구멍(101)에 스플라인축(200)을 삽입한다.Meanwhile, the insulating sleeve 100 having the flange 102 is inserted into the center of the rotary ring 30 and fixed by the ring nut 106 coupled to the thread 104 formed on the outer circumferential surface of the insulating sleeve 100. For example, a rectangular key 108 coupled to the key groove 31 is formed in the flange 102, and the spline shaft 200 is inserted into the spline hole 101 formed in the center of the insulating sleeve 100.

여기서 회전링(30)은 절연슬리브(100)에 형성된 플랜지(102)와 나사산(104)에 결합되는 링너트(106) 사이에 위치되며, 플랜지(102)에 형성된 키(108)가 회전링(30)에 형성된 키홈(31)에 삽입되어 스플라인축(200)에 의해 절연슬리브(100)가 회전될 때 키(108)와 키홈(31)에 의해 회전링(30)이 함께 회전되도록 한다.Here, the rotary ring 30 is located between the flange 102 formed on the insulating sleeve 100 and the ring nut 106 coupled to the thread 104, and the key 108 formed on the flange 102 is the rotary ring ( It is inserted into the key groove 31 formed in the 30 to allow the rotary ring 30 by the key 108 and the key groove 31 to rotate together when the insulating sleeve 100 is rotated by the spline shaft 200.

즉, 첨부도면 도 2 내지 도 4에 도시된 바와 같이 R상, S상, T상의 3상 전원을 개폐하는 경우 적어도 3개의 고정접점(20)(22)에 대응하는 3조의 가동접점(50)(52)을 필요로 하기 때문에 3조의 회전링(30)와 절연슬리브(100), 링너트(106)를 하나의 스플라인축(200)에 고정한다.That is, when the three-phase power supply of the R-phase, S-phase, and T-phase power supply is opened and closed as shown in FIGS. 2 to 4, three sets of movable contacts 50 corresponding to at least three fixed contacts 20 and 22. Since 52 is required, three sets of rotary rings 30, insulating sleeves 100, and ring nuts 106 are fixed to one spline shaft 200.

상기 회전링(30)과 접점지지부(32)(33), 플렉시블통전선(80)(82), 가동접점(50)(52)은 전기전도성 재질인 금속 또는 비철금속으로 성형하며, 적어도 절연슬리브(100)를 전기적 부도체로 성형하여 R상, S상, T상의 각 상간을 절연하도록 한다.The rotary ring 30 and the contact supporting portions 32, 33, the flexible conductive wires 80 and 82, and the movable contacts 50 and 52 are formed of a metal or non-ferrous metal made of an electrically conductive material, and include at least an insulating sleeve ( 100) is molded into an electrical non-conductor to insulate between R phase, S phase, and T phase.

이하 본 발명에 따른 작용을 첨부된 도면에 의거하여 상세히 설명하면 다음과 같다.Hereinafter, the operation according to the present invention will be described in detail with reference to the accompanying drawings.

첨부도면 도 2 내지 도 10에 도시된 바와 같이 상부와 하부에 거리를 두고 설치된 고정접점(20)(22) 간을 가동접점(50)(52)에 의해 개폐하는 과정은 스플라인축(200)이 정방향으로 회전되면, 첨부도면 도2, 도4, 도5, 도6에 도시된 바와 같이 가동접점(50)(52)이 수직으로 세워져서 고정접점(20)(22)에 접촉하게 되면, 접점이 닫혀서 통전상태로 되며, 스플라인축(200)이 역방향으로 회전하여 가동접점(50)(52)이 기울어져 고정접점(20)(22)으로부터 이탈되면, 첨부도면 도 3에 도시된 바와 같이 접점이 개방되어 불통전 상태로 된다.As shown in FIGS. 2 to 10, the process of opening and closing between the fixed contacts 20 and 22 provided at a distance between the upper and lower portions by the movable contacts 50 and 52 is performed by the spline shaft 200. When rotated in the forward direction, as shown in the accompanying drawings, FIGS. 2, 4, 5, and 6, the movable contacts 50, 52 are vertically oriented to come into contact with the fixed contacts 20, 22. Is closed and energized, and when the spline shaft 200 rotates in the reverse direction and the movable contacts 50 and 52 are tilted away from the fixed contacts 20 and 22, the contacts as shown in FIG. Is opened and becomes a non-energized state.

즉, 스플라인축(200)이 회전되면, 회전력이 절연슬리브(100)로 전달되어 절연슬리브(100)가 스플라인축(200)과 함께 같은 방향으로 회전되며, 키(108)와 키홈(31)에 의해 상호 결합되어 있는 회전링(30)도 절연슬리브(100)와 함께 동일방향으로 회전된다.That is, when the spline shaft 200 is rotated, the rotational force is transmitted to the insulating sleeve 100 so that the insulating sleeve 100 rotates in the same direction together with the spline shaft 200, and the key 108 and the key groove 31 are rotated. Rotating ring 30 which is coupled to each other also rotates in the same direction with the insulating sleeve (100).

이때 회전링(30)의 상하부에 일체로 형성되어 있는 접점지지부(32)(33)도 회전링(30)과 동일방향으로 회전되면서 접점지지부(32)(33)에 직간접적으로 연결되어 있는 링크지지판(40)(42)과 가동접점(50)(52), 플렉시블통전선(80)(82), 인장스프링(90) 및 기타 연결부품들이 모두 함께 동일방향으로 회전되면서 접점의 개폐가 이루어지게 된다.At this time, the contact support parts 32 and 33 formed integrally with the upper and lower parts of the rotation ring 30 are also rotated in the same direction as the rotation ring 30 while being directly or indirectly connected to the contact support parts 32 and 33. The support plates 40 and 42 and the movable contacts 50 and 52, the flexible conducting wires 80 and 82, the tension springs 90, and other connecting parts are all rotated in the same direction to open and close the contacts. do.

이와 같이 스플라인축(200)에 의해 가동접점(50)(52)이 정방향 또는 역방향으로 회전되면서 접점이 개폐되는 과정에서 가동접점(50)(52)은 평행링크(60)(61)(62)(63)(70)(71)(72)(73)에 의해 좌우방향으로 평행하게 움직이면서 고정접점(20)(22)의 좌우측면에 밀착되며, 가동접점(50)(52) 간을 연결하고 있는 인장스프링(90)에 의해 상호 가까워지는 방향으로 당겨지면서 고정접점(20)(22)의 좌우측면에 더욱 강하게 밀착되어 통전된다.As the movable contacts 50 and 52 are rotated in the forward or reverse directions by the spline shaft 200, the movable contacts 50 and 52 are parallel links 60, 61, and 62. (63) (70) (71) (72) (73) are moved in parallel to the left and right while being in close contact with the left and right sides of the fixed contacts (20) and (22), connecting the movable contacts (50) and (52) Pulled in a direction closer to each other by the tension spring 90 which is in close contact with the left and right sides of the fixed contact 20, 22 is energized more.

즉, 도 10에 도시된 바와 같이 가동접점(50)(52) 간의 간극(G)이 도 5에 도시된 바와 같은 고정접점(20)(22)의 좌우방향 두께(W)보다 작은 거리로 되어 있기 때문에 가동접점(50)(52)이 고정접점(20)(22)으로 진입하는 과정에서 좌우방향으로 벌어지게 되며, 이때 가동접점(50)(52)과 링크지지판(40)(42)을 연결하는 평행링크(60)(61)(62)(63)(70)(71)(72)(73)에 의해 평행하게 움직이면서 가동접점(50)(52)이 고정접점(20)(22)의 좌우측면에 면접촉하도록 하는 작용을 하게 된다.That is, as shown in FIG. 10, the gap G between the movable contacts 50 and 52 is smaller than the horizontal thickness W of the fixed contacts 20 and 22 as shown in FIG. 5. Since the movable contacts 50 and 52 are opened in the left and right directions in the process of entering the fixed contacts 20 and 22, the movable contacts 50 and 52 and the link support plates 40 and 42 are opened. The movable contacts 50 and 52 move in parallel by the parallel links 60, 61, 62, 63, 70, 71, 72 and 73 to connect the fixed contacts 20 and 22. It will act to make a surface contact with the left and right sides of the.

그리고, 가동접점(50)(52) 간의 간극(G)과 고정접점(20)(22)의 좌우방향 두께(W)의 차이 이내에서 가동접점(50)(52)과 고정접점(20)(22)에 마모가 진행되는 경우에도 가동접점(50)(52)은 인장스프링(90)에 의해 고정접점(20)(22)의 좌우측면을 향해 미세하게 이동되면서 면접촉되기 때문에 통전능력을 그대로 유지하게 된다.Then, within the difference between the gap G between the movable contacts 50 and 52 and the thickness W in the lateral direction of the fixed contacts 20 and 22, the movable contacts 50 and 52 and the fixed contact 20 ( 22, even when the wear progresses, the movable contacts 50 and 52 are in surface contact while being minutely moved toward the left and right sides of the fixed contacts 20 and 22 by the tension spring 90, so that the current carrying capacity is maintained. Will be maintained.

위와 같이 가동접점(50)(52)과 고정접점(20)(22)이 접촉하여 접점이 닫힌 상태에서 예컨대, 상측에 위치된 고정접점(20)으로 전력이 공급되면, 그 통전경로는 먼저 상부에 위치된 고정접점(20)으로부터 가동접점(50)(52)으로 전류가 흐르고, 다시 가동접점(50)(52)으로 흐른 전류는 플렉시블통전선(80)(82)과 상측의 접점지지부(32) 및 회전링(30)을 거쳐 아래쪽에 위치된 접점지지부(33)로 흐르게 되며, 하측의 접점지지부(33)로 흐른 전류는 다시 하측에 위치된 플렉시블통전선 및 가동접점를 거쳐 하측에 위치된 고정접점(22)으로 흘러서 상하부에 위치된 고정접점(20)(22) 간이 통전상태로 된다.When the movable contacts 50 and 52 and the fixed contacts 20 and 22 are in contact with each other as described above, and power is supplied to the fixed contacts 20 located above, for example, in the state where the contacts are closed, the conductive path first Current flows from the fixed contact point 20 located in the movable contact point 50, 52, and the current flowing back to the movable contact point 50, 52 is connected to the flexible conductive line 80, 82 and the upper side of the contact support part ( 32) and through the rotary ring 30 flows to the lower contact support 33, the current flowing to the lower contact support 33 is again located through the flexible conducting wire and the movable contact located below It flows into the fixed contact 22, and the fixed contacts 20 and 22 located in the upper and lower parts will be in an energized state.

이때 고정접점(20)(22)이 R상, S상, T상의 3상으로 이루어진 경우 스플라인축(200)에 결합되어 있는 절연슬리브(100)가 각 상간을 절연시키는 작용을 하게 된다.At this time, when the fixed contact 20, 22 is composed of three phases of R phase, S phase, and T phase, the insulating sleeve 100 coupled to the spline shaft 200 serves to insulate each phase.

한편, 가동접점(50)(52)이 고정접점(20)(22)으로부터 떨어지게 되면, 인장스프링(90)에 의해 가동접점(50)(52)이 서로 가까워지는 방향으로 움직이게 되는데, 이때 평행링크(60)(61)(62)(63)(70)(71)(72)(73)에 설치되어 있는 스토퍼(66)(76)가 링크지지판(40)(42)에 걸리면서 가동접점(50)(52)의 간극(G)이 더 작은 거리로 좁아지는 것을 제한하게 된다.On the other hand, when the movable contact (50) 52 is separated from the fixed contact (20, 22), the movable spring (50) (52) by the tension spring 90 is moved in a direction close to each other, wherein the parallel link The stoppers 66 and 76 provided on the 60, 61, 62, 63, 70, 71, 72, and 73 are caught by the link support plates 40 and 42, and the movable contact 50 The gap G of) 52 is limited to narrowing to a smaller distance.

20,22 : 고정접점 30 : 회전링
31 : 키홈 32,33 : 접점지지부
35 : 탭구멍 36 : 나사구멍
37 : 스크류 40,42 : 링크지지판
45,46 : 체결공 47,48 : 볼트
49,59 : 핀구멍 50,52 : 가동접점
51,53 : 원형구멍 54,56 : 스프링간섭방지구멍
55,85 : 리벳구멍 57 : 리벳
64,65 : 핀 60,61,62,63,70,71,72,73 : 평행링크
66,76 : 스토퍼 78,79 : 스냅링
80,82 : 플렉시블통전선 86 : 볼트구멍
90 : 인장스프링 92,94 : 스프링걸림핀
95 : 환형홈 96 : 머리부
97 : 멈춤링 100 : 절연슬리브
101 : 스플라인구멍 102 : 플랜지
104 : 나사산 106 : 링너트
108 : 키 200 : 스플라인축20,22: fixed contact point 30: rotating ring
31: keyway 32, 33: contact support
35: tap hole 36: screw hole
37: screw 40,42: link support plate
45,46 fastener 47,48 bolt
49,59: pin hole 50,52: movable contact
51,53: Circular hole 54,56: Spring interference prevention hole
55,85 rivet hole 57: rivet
64,65: Pin 60,61,62,63,70,71,72,73: Parallel link
66,76: stopper 78,79: snap ring
80,82 Flexible conductive wire 86 Bolt hole
90: tension spring 92,94: spring engaging pin
95: annular groove 96: head
97: stop ring 100: insulation sleeve
101: spline hole 102: flange
104: thread 106: ring nut
108 key 200 spline shaft

Claims (1)

키홈(31)이 형성된 회전링(30)의 상하부에 접점지지부(32)(33)를 형성하고, 접점지지부(32)(33)의 전후면에 링크지지판(40)(42)을 평행하게 설치하며, 고정접점(20)(22)의 좌우측에 위치되는 가동접점(50)(52)을 평행링크(60)(61)(62)(63)(70)(71)(72)(73)에 의해 링크지지판(40)(42)에 설치하고, 가동접점(50)(52)의 하단부를 플렉시블통전선(80)(82)에 의해 접점지지부(32)(33)에 접속하며, 고정접점(20)(22)을 향해 서로 가까워지는 방향으로 좌우측의 가동접점(50)(52)에 탄성력을 가하는 인장스프링(90)을 가동접점(50)(52)에 설치된 스프링걸림핀(92)(94)에 설치하고, 인장스프링(90)이 위치되는 스프링간섭방지구멍(54)(56)을 가동접점(50)(52)에 형성하며, 링크지지판(40)(42)에 걸려서 양측 가동접점(50)(52)간의 간극을 제한하는 스토퍼(66)(76)를 평행링크(60)(61)(62)(63)(70)(71)(72)(73)에 설치하고, 플랜지(102)를 갖는 절연슬리브(100)를 회전링(30)의 중심으로 삽입하여 절연슬리브(100)의 외주면에 형성된 나사산(104)에 결합되는 링너트(106)에 의해 고정하며, 키홈(31)에 결합되는 키(108)를 플랜지(102)에 형성하고, 절연슬리브(100)의 중심에 형성된 스플라인구멍(101)에 스플라인축(200)을 삽입하여 구성한 것을 특징으로 하는 공동주택용 나이프블레이드의 가동접점장치.Contact support portions 32 and 33 are formed on the upper and lower portions of the rotary ring 30 in which the key grooves 31 are formed, and the link support plates 40 and 42 are installed in parallel on the front and rear surfaces of the contact support portions 32 and 33. The movable contacts 50, 52 located on the left and right sides of the fixed contacts 20, 22 are connected to the parallel links 60, 61, 62, 63, 70, 71, 72 and 73. By attaching the link support plates 40 and 42 to the lower ends of the movable contacts 50 and 52 to the contact supports 32 and 33 by the flexible conducting wires 80 and 82, A spring engaging pin 92 provided at the movable contacts 50 and 52 is provided with a tension spring 90 for applying an elastic force to the movable contacts 50 and 52 on the left and right sides toward each other toward (20) and (22). 94, a spring interference prevention hole 54, 56 in which the tension spring 90 is located, is formed in the movable contacts 50, 52, and caught by the link support plates 40, 42, and the movable contacts on both sides. Stoppers 66 and 76 which limit the gap between the 50 and 52 are installed in parallel links 60, 61, 62, 63, 70, 71, 72 and 73 Inserting the insulating sleeve 100 having a paper 102 into the center of the rotary ring 30 is fixed by a ring nut 106 coupled to the thread 104 formed on the outer peripheral surface of the insulating sleeve 100, the key groove ( 31, a key 108 coupled to the flange 102, and the spline shaft 200 is inserted into the spline hole 101 formed in the center of the insulating sleeve 100, the knife blade for the apartment Movable contact device.
KR1020120151103A 2012-12-21 2012-12-21 Knife-blade of contacting apparatus for apartment house KR101239741B1 (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103280368A (en) * 2013-06-13 2013-09-04 北京合纵科沃尔电力科技有限公司 Magnetic quenching SF6 three-position load switch
CN105280428A (en) * 2015-11-05 2016-01-27 北海银河开关设备有限公司 Double-break three-station load switch

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20040028430A (en) * 2002-09-30 2004-04-03 엘지산전 주식회사 Contact apparatus for knife-blade
KR100594894B1 (en) 2006-05-10 2006-06-30 (주)다인엔지니어링컨설턴트 Contact apparatus for knife-blade using a common housing
JP2008071708A (en) 2006-09-15 2008-03-27 Chubu Electric Power Co Inc Arc-extinguishing method of distribution equipment, and the distribution equipment
KR20080112440A (en) * 2007-06-21 2008-12-26 주식회사 효성 Disconnector of gas insulation switchgear

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20040028430A (en) * 2002-09-30 2004-04-03 엘지산전 주식회사 Contact apparatus for knife-blade
KR100594894B1 (en) 2006-05-10 2006-06-30 (주)다인엔지니어링컨설턴트 Contact apparatus for knife-blade using a common housing
JP2008071708A (en) 2006-09-15 2008-03-27 Chubu Electric Power Co Inc Arc-extinguishing method of distribution equipment, and the distribution equipment
KR20080112440A (en) * 2007-06-21 2008-12-26 주식회사 효성 Disconnector of gas insulation switchgear

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103280368A (en) * 2013-06-13 2013-09-04 北京合纵科沃尔电力科技有限公司 Magnetic quenching SF6 three-position load switch
CN103280368B (en) * 2013-06-13 2015-10-28 北京合纵科沃尔电力科技有限公司 The SF6 three-stations load switch of magnetic quenching
CN105280428A (en) * 2015-11-05 2016-01-27 北海银河开关设备有限公司 Double-break three-station load switch

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