KR930002791Y1 - Circuit breaker - Google Patents
Circuit breaker Download PDFInfo
- Publication number
- KR930002791Y1 KR930002791Y1 KR2019900013580U KR900013580U KR930002791Y1 KR 930002791 Y1 KR930002791 Y1 KR 930002791Y1 KR 2019900013580 U KR2019900013580 U KR 2019900013580U KR 900013580 U KR900013580 U KR 900013580U KR 930002791 Y1 KR930002791 Y1 KR 930002791Y1
- Authority
- KR
- South Korea
- Prior art keywords
- movable contact
- circuit breaker
- vertical side
- fixed
- side plates
- 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.)
- Expired - Lifetime
Links
- 230000006835 compression Effects 0.000 claims description 6
- 238000007906 compression Methods 0.000 claims description 6
- 238000005452 bending Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
- H01H71/02—Housings; Casings; Bases; Mountings
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
- H01H71/10—Operating or release mechanisms
- H01H71/12—Automatic release mechanisms with or without manual release
- H01H71/14—Electrothermal mechanisms
- H01H71/16—Electrothermal mechanisms with bimetal element
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- Breakers (AREA)
Abstract
내용 없음.No content.
Description
제1도는 종래 배선용 차단기의 종단측면도.1 is a longitudinal side view of a conventional circuit breaker.
제2도는 종래 배선용 차단기중 가동접점대의 정면도.2 is a front view of a movable contact of a conventional circuit breaker.
제3a도는 본고안에 의한 배선용 차단기의 요부 정면도.3A is a front view of main parts of a circuit breaker according to the present invention.
제3b도는 제3a도의 A-A선 단면도.FIG. 3B is a cross-sectional view taken along the line A-A of FIG. 3A.
* 도면의 주요부분에 대한 부호의 설명* Explanation of symbols for main parts of the drawings
4 : 가동접접대 4b : 회전축4: movable receiving table 4b: rotating shaft
5,15 : 홀더 6 : 고정접속판5,15 holder 6: fixed connection plate
6a : 통공 8 : 압축스프링6a: through hole 8: compression spring
9 : 바이메탈 10 : 출력단자9: Bimetal 10: Output Terminal
16 : 수직측판16: vertical side plate
본 고안은 배선용 차단기의 가동접점대에 관한 것으로, 특히 연동연선을 사용하지 앎고 움직이는 가동접점대부돐 고정접속판부를 전기적으로 접속시킴으로써 제품을 소형화할 수 있으며, 조립성 향상과 원가절감을 기할 수 있고, 동작의 신뢰성을 향상시킬 수 있도록 한 배선용 차단기에 관한 것이다.The present invention relates to a movable contact stand of a circuit breaker, and in particular, the product can be miniaturized by electrically connecting a fixed contact plate portion of a movable contact point to a movable contact point without using an interlocked twisted pair, and can improve assembly performance and reduce cost. The present invention relates to a circuit breaker for improving the reliability of operation.
종래 배선용 차단기는 제1도에 도시한 바와 같이, 고정접점대(1)와 고정접속판(6) 사이에 가동접점대(4)가 설치되어 있으며, 가동 접점대(4)와 고정접속판(6)사이는 연동연선(7)에 의하여 전기적으로 연결되어 있다.In the conventional circuit breaker, as shown in FIG. 1, the movable contact table 4 is provided between the fixed contact table 1 and the fixed connecting plate 6, and the movable contact table 4 and the fixed connecting plate ( 6) is electrically connected by interlocking twisted pair (7).
상기 고정접속판(6)은 바이메탈(9)을 통하여 출력단자(10)에 전기적으로 연결된다.The fixed connecting plate 6 is electrically connected to the output terminal 10 through the bimetal 9.
동작에 있어서는 제2도와 같이 홀더(5)의 회전운동으로 고정접점대(1)의 고정접점(2)과 가동접점대(4)의 가동접점(3)이 접촉 및 격리되며, 이때 통젼결로는 고정접점대(1)→ 고정접점(2)→ 가동접점(3)→ 가동접점대(4)→ 연동연선(7)→ 고정접속판(6)→ 바이메탈(6)→ 출력단자(10)으로 이루어진다.In operation, as shown in FIG. 2, the fixed contact 2 of the fixed contact stand 1 and the movable contact 3 of the movable contact stand 4 are contacted and isolated by the rotational movement of the holder 5. Fixed contact point (1) → fixed contact point (2) → movable contact point (3) → movable contact point (4) → interlocking stranded wire (7) → fixed contact plate (6) → bimetal (6) → output terminal (10) Is done.
이때 연동연선(7)은 활동성이 보정되어야 하는 가동접점대(4)와 고정접속판(6)사이에 전기적으로 연결하는 부재로서 플렉시블한 재질이 사용되며 통상 연동선이 사용되는 필수적인 구성이다.At this time, the interlocked strand 7 is a member that is electrically connected between the movable contact table 4 and the fixed connecting plate 6 whose activity should be corrected.
그러나 이러한 종래의 배선용 차단기에 있어서는 가동접점대(4)의 활동성을 보장하기 위하여 연동연선(7)의 길이를 일정이상으로 하여야 하므로 연동연선(7)이 차지하는 공간 만큼 배선용 차단기의 크기가 커지게 되므로 배선용 차단기를 소형화하는데 어려움이 있으며, 또한 연동연선(7)을 가동접점대(4)와, 고정접속판(6)에 요접하여야 하므로 조립성이 불량하게 되고, 이에 따라 원가상승을 초래하게 될 뿐만 아니라 가동접점대(4)의 동작에 따라 연동연선(7)은 반복적인 굼힙응력(Bending Stress)를 받게 되며 연동연선(7)이 피로한계에 이르러 파단되거나 접촉불불량을 초래하게 되는 등 동작의 신뢰성이 저하되는 문제점이 있었다.However, in such a conventional circuit breaker, since the length of the interlocked twisted pair (7) must be greater than or equal to a certain length in order to ensure the activity of the movable contact point (4), the size of the breaker for the wiring increases as much as the space occupied by the interlocked twisted pair (7). It is difficult to miniaturize the circuit breaker, and since the interlocked stranded wire 7 should be brought into contact with the movable contact table 4 and the fixed connection plate 6, the assemblability becomes poor, thereby resulting in cost increase. However, according to the operation of the movable contact table 4, the linkage strand 7 is subjected to repeated bending stress, and the linkage strand 7 reaches a fatigue limit and breaks or causes contact failure. There was a problem that the reliability is lowered.
본 고안의 목적은, 연동연선을 사용하지 않고서도 가동접점대와 고정접속판을 효과적으로 연결함으로써 배선용 차단기를 소형화할 수 있으며, 조립성이 향상되고 통작의 신뢰성을 향상시킬 수 있도록 한 배선용 차단기를 제공하려는 것이다.An object of the present invention is to provide a wiring circuit breaker that can be miniaturized for wiring breakers by effectively connecting a movable contact table and a fixed connection plate without using an interlocked twisted pair, and to improve assembly performance and reliability of operation. I will.
이러한 본 고안의 목적은, 입력단자에 접속되는 고정접점대와 출력단자에접속되는 고정접속판사이에 가동접점대를 회전축으로 회전가능하게 설치한 것에 있어서, 상기 고정접속판의 일단에 한쌍의 수직측판을 고정설치하여 이 수직측판의 상단에 가동접점대를 회전축으로 회전가능하게 설치하며, 상기 수직측판의 내측면과 가동접점대의 양측면 사이에 탄력접촉되는 압축스프링을 설치하여서 된 것을 특징으로 하는 배선용 차단기를 제공하는 것에 의하여 달성된다.The object of the present invention is a pair of vertical side plates at one end of the fixed connecting plate in the rotatable installation of the movable contact table between the fixed contact plate connected to the input terminal and the fixed connection plate connected to the output terminal. And fixedly install the movable contact table on the upper end of the vertical side plate so as to be rotatable with a rotating shaft, and install a compression spring that is elastically contacted between the inner side surface of the vertical side plate and both sides of the movable contact table. By providing a.
이하 본 고안에 의한 배선용 차단기를 첨부도면에 도시한 실시예에에 따라서 상세히 설명한다.Hereinafter, the circuit breaker according to the present invention will be described in detail according to an embodiment shown in the accompanying drawings.
제3a도는 본 고안에 의한 배선용 차단기의 요부 정면도이고, 제3b도는 제3도의 A-A선 단면도이다.3A is a front view of the main portion of the circuit breaker according to the present invention, and FIG. 3B is a cross-sectional view taken along line A-A of FIG.
도시한 바와 같이, 입력단자에 접속되는 고정접점대(1)와 출력단자에 접속되는 고정접속판(6)사이에 가동접점대(4)가 회전축(4b)으로 회전가능하게 설치되어 있다.As shown in the figure, the movable contact table 4 is rotatably provided by the rotary shaft 4b between the fixed contact table 1 connected to the input terminal and the fixed connecting plate 6 connected to the output terminal.
상기 고정접속판(6)의 일단에는 한쌍의 수직측판(16, 16)이 고정설치되며, 이 수직측판(16, 16)의 상단에 가동접점대(4)가 상기 회전축(4b)으로 회전가능하게 설치된다.A pair of vertical side plates 16 and 16 is fixedly installed at one end of the fixed connecting plate 6, and the movable contact table 4 is rotatable to the rotary shaft 4b at the upper end of the vertical side plates 16 and 16. Is installed.
상기 회전축(4b)은 수직측판(16, 16)의 상단에 천공된 통공(6a)에 관통지지된다.The rotating shaft 4b is penetrated and supported by the through hole 6a drilled at the upper end of the vertical side plates 16 and 16.
상기 수직측판(16, 16)의 내측면과 가동접점대(4)의 양측면 사이에는 압축스프링(8)을 끼워 수직측판(16, 16)의 내면과 가동접점대(4)의 양측면이 항상 밀착되도록 되어 있다.A compression spring 8 is inserted between the inner side surfaces of the vertical side plates 16 and 16 and both sides of the movable contact table 4 are in close contact with the inner surface of the vertical side plates 16 and 16. It is supposed to be.
상기 압축스프링(8)은 회전축(4b)에 권취되는 상태로 끼워지며, 회전축(4b)의 좌우단부는 홀더(15)의 내벽에 끼워진다.The compression spring 8 is fitted in a state of being wound on the rotating shaft 4b, and the left and right ends of the rotating shaft 4b are fitted to the inner wall of the holder 15.
도면에서 미설명 부호 2은 고정접점, 3은 가동접점이다.In the drawings, reference numeral 2 denotes a fixed contact, and 3 denotes a movable contact.
이와 같이 구성된 본 고안의 배선용 차단기는, 입력단자와 출력단자사이에 정상 전륫가 흐르는 경우에는 가동접점대(4)가 하강회동하여 그 선단에 부착된 가동접점(3)가 고정접점대(1)의 고정접점(2)에 접촉된 상태를 유지하게 되며, 이 상태에서의 통전경로는 고정접점대(1)→ 고정접점(2)→ 가동접점(3)→ 가동접점대(4)→ 수직측벽(16, 16)→ 홀더(15)→ 고정접속판(6)→ 바이메탈(제1도의 “9”참조)→ 출력단자(제1도의 “10”참조)로 이루어지게 된다.In the circuit breaker of the present invention configured as described above, when the normal electric current flows between the input terminal and the output terminal, the movable contact table 4 rotates downward, and the movable contact point 3 attached to the front end thereof is the fixed contact point (1). In the state of contact with the fixed contact point (2) of the fixed contact point (1) → fixed contact point (2) → movable contact point (3) → movable contact point (4) → vertical side wall (16, 16) → holder 15 → fixed connection plate 6 → bimetal (see “9” in FIG. 1) → output terminal (see “10” in FIG. 1).
이 상태에서 과전류가 흐르게 되면 바이메탈이 변형되면서 기구적인 동작으로 가동접점대(4)가 상향회동하여 그 선단의 가동접점(3)가 고정접점대(1)의 고정접점(2)에서 이탈되면서 회로를 차단하게되는 것이다.In this state, when the overcurrent flows, the bimetal deforms and the movable contact stage 4 rotates upward due to a mechanical operation, and the movable contact point 3 at its tip is separated from the fixed contact point 2 of the fixed contact point 1 and the circuit Will be blocked.
이와 같이 동작되는 본 고안의 배선용 차단기는, 상기 가동접점대(4), 고정접속판(6)을 연동연선으로 연결하지 않고 고정접속판(6)에 고정설치된 수직측판(16, 16)에 직접적으로 접촉되는 것이므로 홀더(15)의 크기를 줄일 수 있으며 연동연선이 차지하던 공간을 줄일 수 있으므로 배선용 차단기를 소형화할 수 있게 되며, 연동연선을 사용한 종래와 같은 용접공정이 불필요하므로 조립성이 향상되는 것이다.The circuit breaker of the present invention operated as described above is directly connected to the vertical side plates 16 and 16 fixedly installed on the fixed connecting plate 6 without connecting the movable contact table 4 and the fixed connecting plate 6 with interlocked twisted pairs. Since the contact 15 can reduce the size of the holder 15 and can reduce the space occupied by the interlocked wire, the circuit breaker can be miniaturized. will be.
또 수직측판(16, 16)에 전류(I)가 흐르게 되면 플레밍의 왼손법칙에 의하여 F=ℓ×μcI1/2πd의 힘이 발생하게 된다(여기서 ℓ은 수직측판(16, 16)의 길이, d는 수직측판(16, 16)사이의 거리).In addition, when current I flows through the vertical side plates 16 and 16, a force of F = l × μcI 1 / 2πd is generated by Fleming's left-hand rule (where L is the length of the vertical side plates 16 and 16, d is the distance between the vertical side plates (16, 16).
상기 힘(F)는 제3b도에 도시한 바와 같이 수직측판(16, 16)의 안쪽으로 각각 작용하게 되므로 가동접점대(4)와 수직측판(16, 16)과의 면접촉이 더욱 확실하게 이루어지게 된다.As the force F acts inwardly of the vertical side plates 16 and 16, respectively, as shown in FIG. 3B, the surface contact between the movable contact table 4 and the vertical side plates 16 and 16 is more reliably. Will be done.
또한 상기 가동접점대(4)와 수직측판(16, 16)은 압축스프링(8)에 의하여 탄력적으로 접촉되어 있으므로 이들간의 접촉이 면접촉으로서 확실하게 이루어지므로 동작시 스파크가 생기는 일이 없으며, 반복되는 동작시에는 굼힘응력을 받는 부위가 없으므로 동작의 신뢰성을 향상시킬 수 있게 되는 것이다.In addition, since the movable contact table 4 and the vertical side plates 16 and 16 are elastically contacted by the compression spring 8, the contact between them is assured as surface contact, so that sparks do not occur during operation. In the case of the operation is that there is no portion subjected to the squeezing stress is to improve the reliability of the operation.
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR2019900013580U KR930002791Y1 (en) | 1990-08-31 | 1990-08-31 | Circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR2019900013580U KR930002791Y1 (en) | 1990-08-31 | 1990-08-31 | Circuit breaker |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| KR920005232U KR920005232U (en) | 1992-03-26 |
| KR930002791Y1 true KR930002791Y1 (en) | 1993-05-21 |
Family
ID=19302986
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR2019900013580U Expired - Lifetime KR930002791Y1 (en) | 1990-08-31 | 1990-08-31 | Circuit breaker |
Country Status (1)
| Country | Link |
|---|---|
| KR (1) | KR930002791Y1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20240046958A (en) | 2022-10-04 | 2024-04-12 | 주식회사 창건 | Post for temporary handrail |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100425188B1 (en) * | 2001-12-04 | 2004-03-30 | 엘지산전 주식회사 | structure for slide-contacting a moving contact terminal of Circuit Breaker |
-
1990
- 1990-08-31 KR KR2019900013580U patent/KR930002791Y1/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20240046958A (en) | 2022-10-04 | 2024-04-12 | 주식회사 창건 | Post for temporary handrail |
Also Published As
| Publication number | Publication date |
|---|---|
| KR920005232U (en) | 1992-03-26 |
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