KR880000362Y1 - Breaker - Google Patents
Breaker Download PDFInfo
- Publication number
- KR880000362Y1 KR880000362Y1 KR2019830008611U KR830008611U KR880000362Y1 KR 880000362 Y1 KR880000362 Y1 KR 880000362Y1 KR 2019830008611 U KR2019830008611 U KR 2019830008611U KR 830008611 U KR830008611 U KR 830008611U KR 880000362 Y1 KR880000362 Y1 KR 880000362Y1
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- Prior art keywords
- bimetal
- metal sphere
- terminal metal
- screw
- adjustment
- Prior art date
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Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H73/00—Protective overload circuit-breaking switches in which excess current opens the contacts by automatic release of mechanical energy stored by previous operation of a hand reset mechanism
- H01H73/22—Protective overload circuit-breaking switches in which excess current opens the contacts by automatic release of mechanical energy stored by previous operation of a hand reset mechanism having electrothermal release and no other automatic release
- H01H73/26—Protective overload circuit-breaking switches in which excess current opens the contacts by automatic release of mechanical energy stored by previous operation of a hand reset mechanism having electrothermal release and no other automatic release reset by tumbler
-
- 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
- H01H71/123—Automatic release mechanisms with or without manual release using a solid-state trip unit
-
- 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
- H01H71/50—Manual reset mechanisms which may be also used for manual release
- H01H71/52—Manual reset mechanisms which may be also used for manual release actuated by lever
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- Breakers (AREA)
Abstract
내용 없음.No content.
Description
제1도는 종래의 배선용 차단기의 과전류트립 장치의 조정기구의 일례를 표시한 요부단면도.1 is a main sectional view showing an example of an adjustment mechanism of an overcurrent trip device of a conventional circuit breaker.
제2도는 제1도의 문제점을 지적한 설명도.2 is an explanatory diagram indicating the problem of FIG.
제3도는 본 고안의 배선용 차단기의 과전류트립장치의 조정기구의 일실시예를 표시한 배선용 차단기의 단면도.3 is a cross-sectional view of a circuit breaker showing an embodiment of the adjustment mechanism of the overcurrent trip device of the circuit breaker of the present invention.
* 도면의 주요부분에 대한 부호의 설명* Explanation of symbols for main parts of the drawings
1 : 케이스 2 : 외선용 단자금속구1: Case 2: Terminal metal ball for external wire
3 : 바이메탈 4 : 트립금속구3: bimetal 4: trip metal ball
4a : 결합부 5 : 조정나사4a: coupling part 5: adjusting screw
5a : 나합부 10 : 개폐기구5a: screwed part 10: opening and closing mechanism
10a : 클릭10a: click
이 고안은 배선용 차단기의 과전류트립장치의 조정기구에 관한 것이다.This invention relates to the adjustment mechanism of the overcurrent trip device of a circuit breaker.
이 종류의 과전류트립장치는 트립전류 구분을 대별해서 2개의 범위로 나눌 수가 있으며, 그것은 과부하영역의 반한시(反限詩) 특성부분과, 단락영역의 순서(瞬時) 특성부분인바, 본 고안은 전자에 관계되는 설정기구이다. 반한시특성은 얻는 데는 오로지 바이메탈이 사용되고 설정위치가 정확하고 더우기 넓은 범위로 조정이 가능한 것이 요망되고 있다.This type of overcurrent trip device can be divided into two ranges by classifying the trip current, which is the inverse time characteristic part of the overload area and the order characteristic part of the short circuit area. It is a setting mechanism related to the former. It is desired that bimetal is used to obtain the inverse time characteristic, and the setting position is accurate, and moreover, it is desired to be able to adjust the wide range.
종래의 과전류트립장치의 조정기구에는 예를들면 제1도 및 제2도에 그 요부를 표시한 것이 알려져 있다. 도면에 있어서 절연물로 된 케이스(1)에 지지된 한쪽의 외선용 단자금속구(2)에는 그 내측단부에 바이메탈(3)의 일단이 접속되고, 바이메탈(3)의 타단은 도시되어 있지 않으나 가요성도체를 개재해서 다른쪽의 외선용 단자금속구에 접속된 고정접촉자와 접리하는 가동접촉자에 접속되어 있다. 그리고 바이메탈(3)은 그것에 과전류가 흐르면 쇄선으로 표시한 바와 같이 변위해서, 일부밖에 도시되어 있지 않는 개폐기구의 클릭에 연결되는 트립금속구(4)의 결합점(4a)에 결합하여, 이것을 밀어올려 상기의 클릭과 트립금속구(4)의 결합을 벗겨 가동접촉자를 개리하도록 되어 있다. 그리고 단자금속구(2)와 바이메탈(3)의 일단과 접속개소에는 여기를 접촉점(2a)으로 해서 진퇴자재하게 되는 조정나사(5)가 케이스(1)에 나착되고, 조정나사(5)는 케이스 (1)의 바깥쪽으로 두부가 노출하여 바깥쪽에서 비틀어 돌리는 조작이 가능토록 되어있다.The adjustment mechanism of the conventional overcurrent trip device is known, for example, the main part of which is shown in FIG. 1 and FIG. In the drawing, one end of the bimetal 3 is connected to an inner end of one of the outer terminal metal spheres 2 supported by the case 1 made of an insulator, and the other end of the bimetal 3 is not shown. It is connected to the movable contact which is folded with the fixed contact connected to the other outer terminal metal ball via the conductor. The bimetal 3 is displaced as indicated by the broken line when an overcurrent flows therethrough, engages with the engaging point 4a of the trip metal sphere 4 connected to the click of the opening and closing mechanism, which is not shown in part, and pushes it. It lifts up and removes the coupling | bonding of the said click and the tripping metal sphere 4, and opens a movable contact. At one end of the terminal metal sphere 2 and the bimetal 3, and at the connection point, an adjustment screw 5 is attached to the case 1 to move forward and backward with the contact point 2a as the contact point 2a. The head is exposed to the outside of the case (1) to allow twisting from the outside.
이 구성에 있어서의 트립전류치의 설정은 바이메탈(3)과 트립금속구(4)의 결합점(4a)의 틈새(g) 즉 바이메탈(3)의 초기회동각도를 조정하므로서 가능하게 되며, 그것은 조정나사(5)를 압착하여 단자금속구(4)를 변형시키므로서 틈새(g)를 작게, 반대로 조정나사(5)를 풀어주므로서 크게 할 수 있도록 되어있다. 그러나 이 구성으로는 먼저 바이메탈(3)이 회동할수 있는 범위 즉 조정 범위는 단자금속구(2)의 탄성한개내로 제약되며, 또한 단자금속구(2)는 도전재료로서 통상 구리합금이 사용되기 때문에 큰 탄성을 얻을 수가 없어, 결과적으로 조정범위가 좁다는 것과, 그 외로는 조정나사(5)를 밀어넣어두면 제2도에 표시한 바와같이 조정나사(5)와 단자금속구(2)의 접촉점(2a)이 화살방향으로 이동해서 설정치가 변화하는 것 및 케이스(1)에의 조정나사(5)용의 나사내기각도의 불균일과 나사와 나사구멍의 유격으로 접촉점(2a)이 일정하지 않으므로 높은 조정정밀도를 얻을 수 없는 결점이 있었다.The setting of the trip current value in this configuration is made possible by adjusting the gap g of the coupling point 4a of the bimetal 3 and the trip metal sphere 4, that is, the initial rotation angle of the bimetal 3, which is adjusted. By pressing the screw 5 to deform the terminal metal sphere 4, the clearance g is made small, and conversely, the adjusting screw 5 is loosened so as to be enlarged. However, in this configuration, first, the range in which the bimetal 3 can rotate, that is, the adjustment range, is limited to the elastic part of the terminal metal sphere 2, and the terminal metal sphere 2 is usually made of copper alloy as a conductive material. As a result, a large elasticity cannot be obtained, and as a result, the adjustment range is narrow. Otherwise, if the adjustment screw 5 is pushed in, the contact point between the adjustment screw 5 and the terminal metal sphere 2 as shown in FIG. (2a) is moved in the direction of the arrow, and the set value is changed, and the contact point (2a) is not constant due to the unevenness of the screwing angle for the adjusting screw (5) to the case (1) and the clearance between the screw and the screw hole. There was a flaw in which precision could not be obtained.
본 고안은 상기 종래의 결점을 제거하고 조정범위가 넓고 또한 정밀도가 높은 배선용 차단기의 과전류트립장치의 조정기구를 제공하는 것을 목적으로 한다.The present invention aims to eliminate the above-mentioned drawbacks and to provide an adjustment mechanism for an overcurrent trip device of a circuit breaker with a wide adjustment range and high precision.
본 고안에 의하면 상기 목적은 케이스에 지지된 회선용 단자금속군에 일단이 접속되고 타단이 가동접촉자에 접속되는 바이메탈과, 이 바이메탈에 흐르는 과전류에 기인하는 변위량으로 개폐기구의 클릭과 연결된 트립금속구의 연결을 벗기는 과전류트립장치의 조정기구에 있어서, 상기 케이스에 회전자재하면 진퇴가 구속되고, 또한 바깥쪽으로부터의 비틀어 돌리는 조작이 가능하게 착설됨과 동시에 나사끝이 상기 외선용 단자금속구와 바이메탈의 일단과의 접속 개소에 나합된 조정나사를 갖추고, 이 조정나사의 비틀어돌림에 의한 상기 단자금속구의 변형으로 상기 바이메탈의 초기회동 각도를 소정의 위치에 유지하므로서 달성된다.According to the present invention, the above object is a bimetal having one end connected to a line terminal metal group supported on a case and the other end connected to a movable contactor, and a trip metal sphere connected to a click of the opening and closing mechanism with a displacement amount due to an overcurrent flowing through the bimetal. In the adjustment mechanism of the over-current tripping device which disconnects, when rotating to the case, the movement is restrained and the twisting operation from the outside is installed, and the screw end is connected to the one end of the outer metal terminal and the bimetal for the outer wire. It is achieved by having an adjusting screw screwed into the connection point of and maintaining the initial rotation angle of the bimetal at a predetermined position by deformation of the terminal metal sphere by twisting the adjusting screw.
이하 본 고안의 실시예를 도면에 따라서 설명한다.Hereinafter, embodiments of the present invention will be described with reference to the drawings.
제3도에 있어서. 상기 제1도의 종래형과 동일부분에는 동일부호를 붙여서 설명의 중복을 피하고, 상이한 부분에 대해서 설명하면, 그것은 이 실시예에서는 조정나사 (5)가 우선 그 나사끝이 단자금속구(2)이 바이메탈(3)의 일단과의 접속개소의 상기 접촉점(2a)에 상당하는 위치에 나합되며, 그 나사두부가 케이스(1)의 측벽내에 회전자재하며 진뢰가 구속되고 또한 바깥쪽으로부터 비틀어돌리는 조작이 가능하게 매설되어 있다는 것이다. 그리고 제1도에서는 도시되지 않는 것으로서 바이메탈(3)의 타단에 가요성도체(6)를 개재해서 다른쪽의 외신용 단자금속구(7)에 접속된 교정접촉자(8)와 정리하는 가동접촉자(9)가 접속되어 있다. 또 트립금속구(4)에는 그 결합부(4a)에 개폐기구(10)의 클릭(10a)이 연결된 상태 즉 차단기의 폐성상태가 도시되어 있다.In FIG. The same reference numerals are given to the same parts as those in the conventional type of FIG. 1 to avoid duplication of description, and the description of the different parts is that in this embodiment, the adjusting screw 5 is first used for the terminal end of the metal fitting 2. The screw head is rotated in the side wall of the case 1, the thrust is constrained and twisted from the outside. The screw head is joined to a position corresponding to the contact point 2a of the connection point with one end of the bimetal 3. It is buried possibly. In addition, as shown in FIG. 1, a movable contact arranged together with a calibration contact 8 connected to the other external metal terminal terminal 7 via a flexible conductor 6 at the other end of the bimetal 3, 9) is connected. The trip metal sphere 4 also shows a state in which the click 10a of the opening and closing mechanism 10 is connected to the engaging portion 4a, that is, the closed state of the breaker.
이 구성에 있어서 조정나사(5)를 돌리면, 측방향의 진퇴는 구속되어 있으므로서 단자금속구(2)와 바이메탈(3)의 일단과의 접속부분이 되는 나사의 나합부(5a)가 조정나사(5)의 측방향으로 이동하여 바이메탈(3)도 쇄선으로 표시한 것과 같은 큰 회동각이 부여되어 결합부(4a)와의 틈새(g)를 넓게 얻을 수가 있다. 따라서 이 틈새(g)를 조정하므로서 조정범위가 확대되어, 소정의 설정치를 고정밀도로 얻어지는 것이다.In this configuration, when the adjusting screw 5 is turned, the screw 5a of the screw serving as a connection between the terminal metal sphere 2 and one end of the bimetal 3 is restrained in the lateral advance and fall. By moving in the lateral direction of (5), the bimetal 3 is also given a large rotational angle as indicated by the dashed line, so that the clearance g with the engaging portion 4a can be widened. Therefore, the adjustment range is expanded by adjusting the gap g, so that a predetermined set value is obtained with high accuracy.
또한 동작은 조정된 과전류트립장치에 단자금속구(7)-고정접촉자(8)-가동접촉자(9)-가요성도체(6)-바이메탈(3)-단자금속구(2)의 경로로 과전류가 흐르면 바이메탈(3)은 저항열에 의해서 과전류와 비례해서 변위하여, 트립금속구(4)의 결합부 (4a)가 늘려지게 되고, 결합부(4a)가 늘려지면 개폐기구(10)의 클릭(10a)과의 연결이 풀리고, 개폐기구(10)가 갖추고 있는 인장스프링(11)에 의해서 회전되어 가동접촉자 (9)가 고정접촉자(8)로부터 개리되어서 차단이 완료한다.The operation is also performed by the overcurrent tripping device in the path of the terminal metal sphere (7)-fixed contact (8)-movable contact (9)-flexible conductor (6)-bimetal (3)-terminal metal sphere (2). When the bimetal 3 flows in proportion to the overcurrent due to the resistance heat, the coupling portion 4a of the trip metal sphere 4 increases, and when the coupling portion 4a increases, the click of the opening / closing mechanism 10 The connection with 10a) is released, and is rotated by the tension spring 11 provided in the opening / closing mechanism 10 so that the movable contact 9 is opened from the fixed contact 8 so that the blocking is completed.
이상 설명한 바와 같이 본 고안에 의하면 단자금속 구와 바이메탈과의 접속점에 나사를 깎아서 단자금속구를 강제적으로 변형시키므로서 단자금속구의 탄성에는 관계없이 조정범위가 확대되고, 또한 나합개소는 조정 나사의 비틀어돌림에 비례해서 이동하므로서 정밀한 조정이 가능한 조정기구가 얻어지는 것이다.As described above, according to the present invention, by forcibly deforming the terminal metal sphere by cutting the screw at the connection point between the terminal metal sphere and the bimetal, the adjustment range is expanded regardless of the elasticity of the terminal metal sphere. The adjustment mechanism capable of precise adjustment by moving in proportion to is obtained.
Claims (1)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP?58-38767 | 1983-03-17 | ||
JP1983038767U JPS59144858U (en) | 1983-03-17 | 1983-03-17 | Adjustment mechanism of overcurrent trip device for wiring breakers |
Publications (2)
Publication Number | Publication Date |
---|---|
KR840006406U KR840006406U (en) | 1984-12-03 |
KR880000362Y1 true KR880000362Y1 (en) | 1988-03-10 |
Family
ID=30169434
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR2019830008611U KR880000362Y1 (en) | 1983-03-17 | 1983-10-07 | Breaker |
Country Status (2)
Country | Link |
---|---|
JP (1) | JPS59144858U (en) |
KR (1) | KR880000362Y1 (en) |
-
1983
- 1983-03-17 JP JP1983038767U patent/JPS59144858U/en active Pending
- 1983-10-07 KR KR2019830008611U patent/KR880000362Y1/en not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
KR840006406U (en) | 1984-12-03 |
JPS59144858U (en) | 1984-09-27 |
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