CN1143342C - Trip link structure for circuit breaker - Google Patents

Trip link structure for circuit breaker Download PDF

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Publication number
CN1143342C
CN1143342C CNB981029426A CN98102942A CN1143342C CN 1143342 C CN1143342 C CN 1143342C CN B981029426 A CNB981029426 A CN B981029426A CN 98102942 A CN98102942 A CN 98102942A CN 1143342 C CN1143342 C CN 1143342C
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CN
China
Prior art keywords
circuit breaker
coupling part
dish
connector
hinge
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
Application number
CNB981029426A
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Chinese (zh)
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CN1238545A (en
Inventor
安熙一
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.)
Lg Electric Power Co ltd
LS Electric Co Ltd
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Lg Electric Power Co ltd
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Filing date
Publication date
Application filed by Lg Electric Power Co ltd filed Critical Lg Electric Power Co ltd
Priority to CNB981029426A priority Critical patent/CN1143342C/en
Publication of CN1238545A publication Critical patent/CN1238545A/en
Application granted granted Critical
Publication of CN1143342C publication Critical patent/CN1143342C/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • H01H33/02—Details
    • H01H33/022—Details particular to three-phase circuit breakers
    • H01H2033/024—Details particular to three-phase circuit breakers with a triangular setup of circuit breakers

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  • Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
  • Breakers (AREA)

Abstract

The present invention relates to a trip link structure for a circuit breaker, which comprises a plurality of circuit breakers having resting contacts and movable contacts which are arranged in a triangle, operating rods which are connected to the movable contacts, a main body engaging disk which is engaged with the front surface of each phase of the circuit breakers, supporting frames engaged with the front surface of each phase of the main body engaging disk, a first connecting part which is hinged with operating rods, an operating connecting disk of a second connecting part which is supported by the first connecting part of the supporting frames, operation connecting components which downwards and upwards extend, the first connecting part which is connected to the lower ends and the upper ends of the connecting components on the upper side and the lower side, another second connecting part which is supported by the second connecting part of the supporting frames, and connecting rods of a third connecting part hinged with driving rods.

Description

Trip link structure for circuit breaker
Technical field
The present invention relates to trip link structure for circuit breaker, particularly improved trip link structure for circuit breaker makes its construction minimizes with action bars with every distance of same action between circuit breaker mutually by trip link structure is set, and it can make the circuit breaker action message.
Background technology
Usually, when electric power when being provided with the distribution system supply capability receiving device of overhead distribution line and underground distribution line, circuit breaker is used to separate underground distribution wire circuit.
Conventional circuit breaker with trip link structure is explained with reference to Fig. 1 and 2.
At first, arrange circuit breaker 20a in main body 10,20b, 20c, each circuit breaker are installed to corresponding going up mutually.
Circuit breaker 20a, 20b, 20c are installed in respectively in the insulating sleeve (not shown), circuit breaker 20a, and 20b, each of 20c comprises a rest(ing) contact (not shown) and a moving contact (not shown).One end of moving contact and corresponding insulating rod 25a, 25b, one of 25c connects, and insulating rod 25a, 25b, 25c connects by pin-joint.
At this moment, the circuit breaker 20a in a plurality of circuit breakers, 20b, the end parts of 20c connects with the input of corresponding input electric power, and the output connection of remaining circuit breaker end parts and corresponding output power.
Circuit breaker 20a, 20b, the other end of 20c be as action bars 30a, 30b, and the insulating rod 25a of 30c through being connected with the moving contact (not shown), 25b, 25c and action bars coupling part 26a, 26b, 26c is to evagination.
Body engages dish 40 is through a plurality of steady pins 50 and circuit breaker 20a, 20b, the front surface engagement of 20c.
Supporter 60a, 60b, 60c are arranged to and action bars 30a, 30b, and 30c is parallel.
Secondly, be provided with connector 90a, 90b, 90c.Each connector 90a, 90b, the mid portion of 90c and corresponding supporter 60a, 60b, the end of 60c can be dynamically connected, and an end of each connector and the corresponding drive rod 80a that is connected with operating mechanism 70,80b, 80c connects, and the other end of each connector and corresponding action bars 30a, 30b, one of 30c connects, like this connector 90a, 90b, 90c can move forward and backward by operating mechanism 70, makes circuit breaker 20a thus, 20b, the contact action of 20c.
Among the figure, letter " a ", " b ", the facies pattern of " c " expression electric power.
In other words, letter " a " is corresponding to the A phase of electric power.Here, the phase place of electric power is changeable.
Explain the operation of traditional trip link structure with reference to the accompanying drawings now.
At first, as the drive rod 80a of every phase, when 80b, 80c rotated counterclockwise through the built-in function of operating mechanism 70, the connector 90a of every phase, 90b, 90c be with respect to every phase supporter 60a, 60b, and 60c clockwise rotates.
As connector 90a, 90b, when 90c clockwise rotates, action bars 30a, 30b, 30c is drawn forward, like this with through action bars coupling part 26a, 26b, the insulating rod 25a that 26c connects, 25b, the moving contact (not shown) that 25c one end parts connects separates with the rest(ing) contact (not shown).
In the separated state of rest(ing) contact (not shown),, when 26b, 26c move inward once more, carry out attended operation with the order that separation order is opposite as moving contact 26a.
But in traditional trip link structure, if the circuit breaker level is installed, then structure width is broadened.In addition, if circuit breaker is vertically installed, structure height increases.Therefore, trip link structure is done heavyly.
Summary of the invention
Thus, the purpose of this invention is to provide the trip link structure for circuit breaker that overcomes the problem that prior art runs into.
Another object of the present invention is by a kind of trip link structure for circuit breaker, can reduce the trip link structure width and circuit breaker is minimized with rounded projections arranged by the phase place of circuit breaker, and can make each circuit breaker action by the operating distance between the action bars that is identically formed drive rod and circuit breaker.
For achieving the above object, provide a kind of be used to have based on electric power each mutually and the trip link structure of the breaker unit of the operating mechanism of operation drive rod comprises: with three circuit breakers (200a, the 200b of rounded projections arranged, 200c), wherein, each circuit breaker has rest(ing) contact and the moving contact that is formed at wherein, and corresponding to of three-phase, and, each circuit breaker have the action bars that connects with corresponding moving contact (300a, 300b, 300c); With described three circuit breakers (200a, 200b, the body engages dish (120) of the front surface engagement of 200c) each; Support (510a, 510b, 510c), each corresponding to described three circuit breakers (200a, 200b, in 200c) corresponding one and with the front surface engagement of described body engages dish (120); Be operatively connected dish (520a, 520b, 520c), each described dish (520a that is operatively connected, 520b 520c) has and described action bars (300a, 300b, 300c) the first pontes (521a of the corresponding hinge in, 521b, 521c), and, each is operatively connected dish, and (520a, 520b 520c) have by described support (510a, 510b, 510c) in corresponding one the first pontes (512a, 512b, 512c) second coupling part of Zhi Chiing (522a, 522b, 522c); Be used for first connector (530a) of stretching, extension downwards, has a upper end, described upper end and the upper portion, described three the circuit breaker (200a that are positioned at breaker unit (100), 200b, described dish (the 520a that is operatively connected of the corresponding connection 200c), 520b, 520c) corresponding one the 3rd coupling part (523a) hinge in; The second and the 3rd connector (530b that is used to stretch upwards, 530c), each has a lower end, described lower end and the lower portion, described three the circuit breaker (200a that are positioned at breaker unit (100), 200b, 200c) described dish (520a, the 520b of being operatively connected of the corresponding connection in, corresponding one the 3rd coupling part (523b, 523c) hinge 520c); Head rod (540a), have the first pontes (541a) that is connected with the lower end of described first connector (530a), by described support (510a, 510b, second coupling part (542a) that corresponding one second coupling part (511a) in 510c) is supported and with the 3rd coupling part (543a) of first drive rod (400a) hinge; And the second and the 3rd connecting rod (540b, 540c), each have respectively with the described second and the 3rd connector (530b, the first pontes that upper end 530c) connects (541b, 541c), by described support (510a, 510b, second corresponding one coupling part 510c) (511b, 511c) second coupling part of Zhi Chiing (542b, 542c) and with the corresponding second and the 3rd drive rod (400b, 400c) the 3rd coupling part of hinge (543b, 543c).
Description of drawings
Following description will make other advantage of the present invention, target and feature more obvious.
Therefore from detailed description given below and only provide in a schematic way and be not limited to will more fully understand the present invention the accompanying drawing of the present invention, wherein:
Fig. 1 is the left side diagrammatic sketch that shows the conventional circuit breaker cut-away section part with trip link structure;
Fig. 2 is the preceding diagrammatic sketch that shows the conventional circuit breaker device;
Fig. 3 is the left side diagrammatic sketch that shows the breaker portion section part that has trip link structure according to the present invention;
Fig. 4 is the preceding diagrammatic sketch that shows according to release unit of the present invention;
Fig. 5 is the plane graph that shows according to trip link structure for circuit breaker of the present invention;
Fig. 6 is the left side diagrammatic sketch that shows the trip link structure according to the present invention;
Fig. 7 is the perspective view that shows according to trip link structure major part of the present invention; And
Fig. 8 A-B is the perspective exploded view that shows according to trip link structure major part of the present invention.
Embodiment
To explain according to trip link structure for circuit breaker of the present invention now with reference to the accompanying drawings.
Fig. 3 has shown the breaker portion section part that has trip link structure according to of the present invention, and Fig. 4 has shown according to release unit of the present invention.
So, a plurality of circuit breakers are positioned in the container 110 of main body 100, and wherein every circuitry phase forms with triangle.
Circuit breaker 200a, 200b, each comprises insulating sleeve 206a, 206b, 206c 200c, fixed electrode 210a, 210b, 210c has the vacuum circuit-breaker 209a of moving contact (not shown) and rest(ing) contact (not shown), 209b, 209c, and movable electrode 211a, 211b, 211c.Vacuum circuit-breaker 209a, 209b, 209c and insulating rod 230a, 230b, 230c connects, and insulating rod 230a, 230b, 230c utilize pin-joint to be inserted in action bars coupling part 220a, 220b, the through hole (not shown) that forms among the 220c.
Circuit breaker 200a, 200b is connected with the input unit of corresponding input electric power with each the end of 200c, the output connection of an end of each of remaining circuit breaker and corresponding output power.
Circuit breaker 200a, 200b, each the other end and circuit breaker 200a of 200c, 200b, the moving contact 220 of 200c connects, and becomes the action bars 300a of outside stretching, extension, 300b, 300c.
Body engages dish 120 passes through a plurality of steady pins 130 and action bars 300a, 300b, the front surface engagement of 300c.
From every phase action bars 300a that body engages dish 120 outwards stretches, 300b, 300c passes through bindiny mechanism 500 and drive rod 400a, 400b, 400c can be dynamically connected.
In addition, drive rod 400a, 400b, 400c is connected with operating mechanism 800, passes through the built-in function drive rod 400a of operating mechanism like this, 400b, 400c is moved up and down, and makes circuit breaker 200 for this reason, 200b, 200c can operating of contacts.
In the drawings, letter " a ", " b ", the phase place of " c " expression electric power.
In other words, the mutually given letter of electric power A " a ".The position of phase can change.
Fig. 5 and 6 has shown circuit breaker 200a, 200b, and 200c and bindiny mechanism 500, with drive rod 400a, 400b, 400c and a kind of geared assembly that meshes with operating mechanism 800.
As illustrated in Figures 5 and 6, bindiny mechanism 500 is at circuit breaker 200a, 200b, the action bars 300a of 200c, 300b, 300c and drive rod 400a, 400b, between the 400c with 120 engagements of body engages dish.
To be explained in more detail bindiny mechanism 500 with reference to figure 7 and 8A-B.
Support 510a, 510b, every phase front surface engaged of 510c and body engages dish 120.
Be operatively connected the dish 520a, 520b, the first pontes 521a of 520c, 521b, 521c respectively with action bars 300a, 300b, 300c connects, the second coupling part 522a, 522b, 522c and support 510a, 510b, the first pontes 512a of 510c, 512b, 512c can be dynamically connected.
Be operatively connected the dish 520a, 520b, the 3rd coupling part 523a of 520c, 523b, 523c respectively with connecting rod 530a, 530b, the end parts hinge of 530c.
In addition, provide connecting rod 540a, 540b, 540c, connector 530a therein, 530b, other end part and the first pontes 541a, the 541b of 530c, 541c hinge, and the second coupling part 542a, 542b, 542c and support 510a, 510b, the second coupling part 511a of 510c, 511b, 511c can be dynamically connected, the 3rd coupling part 543a, 543b, 543c and drive rod 400a, 400b, 400c can be dynamically connected.
The connector 530a that is placed in top has the upper and lower, and its middle and lower part is connected with the first pontes 541a of connecting rod 540a in the bottom.
Being placed in the connector 530b of bottom and the top of 530c is connected with 541c with the first pontes 541b of connecting rod 540b and 540c.
Drive rod 400a, 400b, 400c and connecting rod 540a, 540b, the tie point between the 540c forms at identical height.
Simultaneously, it is identical that the downward spread length of upside connector 530a and connector 530b and 530c stretch upwards length, connector 530a, 530b, 530c and connecting rod 540a, 540b, tie point between the 540c is at sustained height, drive rod 400a like this, 400b, 400c and circuit breaker 200a, 200b, the action bars 300a of 200c, 300b, the connection length between the 300c is identical.
Explain operation now according to trip link structure of the present invention.
At first, as drive rod 400a, when 400b, 400c clockwise rotated through operating mechanism 800 built-in functions, connecting rod 540a, 540b, 540c be with respect to by support 510a, 510b, and the second coupling part 542a that 510c supports, 542b, 542c turns clockwise.
As connecting rod 540a, 540b, when 540c rotates, connector 530a, 530b, 530c moves up.
As connector 530a, 530b when 530c moves up, is operatively connected dish 520a, 520b, and 520c is rotated counterclockwise, action bars 300a, 300b, 300c is pulled outwardly, circuit breaker 200a like this, 200b, the moving contact 220 of 200c separates with rest(ing) contact 230.
Drive rod 540a, 540b, 540c and circuit breaker 200a, 200b, the action bars 300a of 200c, the operating distance between 300b and the 300c is identical, and moving contact 220 can separate with rest(ing) contact 230 simultaneously like this.
In the separated state of rest(ing) contact 230, when moving contact 220 connects once more, carry out lock out operation by the order opposite with separation sequence.
As mentioned above, in trip link structure for circuit breaker according to the present invention, settle a plurality of circuit breakers by a unit that comprises three circuit breakers with triangle, the overall structure of circuit breaker is owing to width that has reduced circuit breaker and height minimize like this.In addition, make smooth operation become possibility by between drive rod and breaker operator bar, forming the identical operations distance.
Though disclosed the preferred embodiments of the present invention are for illustration purpose, those skilled in the art can carry out various modifications in scope that does not depart from claim and spirit, add and replacement.

Claims (2)

  1. One kind be used to have based on electric power each mutually and the trip link structure of the breaker unit of the operating mechanism of operation drive rod comprises:
    With three circuit breakers of rounded projections arranged (200a, 200b, 200c), wherein, each circuit breaker has rest(ing) contact and the moving contact that is formed at wherein, and corresponding to of three-phase, and, each circuit breaker have the action bars that connects with corresponding moving contact (300a, 300b, 300c);
    With described three circuit breakers (200a, 200b, the body engages dish (120) of the front surface engagement of 200c) each;
    Support (510a, 510b, 510c), each corresponding to described three circuit breakers (200a, 200b, in 200c) corresponding one and with the front surface engagement of described body engages dish (120);
    Be operatively connected dish (520a, 520b, 520c), each described dish (520a that is operatively connected, 520b 520c) has and described action bars (300a, 300b, 300c) the first pontes (521a of the corresponding hinge in, 521b, 521c), and, each is operatively connected dish, and (520a, 520b 520c) have by described support (510a, 510b, 510c) in corresponding one the first pontes (512a, 512b, 512c) second coupling part of Zhi Chiing (522a, 522b, 522c);
    Be used for first connector (530a) of stretching, extension downwards, has a upper end, described upper end and the upper portion, described three the circuit breaker (200a that are positioned at breaker unit (100), 200b, described dish (the 520a that is operatively connected of the corresponding connection 200c), 520b, 520c) corresponding one the 3rd coupling part (523a) hinge in;
    The second and the 3rd connector (530b that is used to stretch upwards, 530c), each has a lower end, described lower end and the lower portion, described three the circuit breaker (200a that are positioned at breaker unit (100), 200b, 200c) described dish (520a, the 520b of being operatively connected of the corresponding connection in, corresponding one the 3rd coupling part (523b, 523c) hinge 520c);
    Head rod (540a), have the first pontes (541a) that is connected with the lower end of described first connector (530a), by described support (510a, 510b, second coupling part (542a) that corresponding one second coupling part (511a) in 510c) is supported and with the 3rd coupling part (543a) of first drive rod (400a) hinge; And
    The second and the 3rd connecting rod (540b, 540c), each have respectively with the described second and the 3rd connector (530b, the first pontes that upper end 530c) connects (541b, 541c), by described support (510a, 510b, second corresponding one coupling part 510c) (511b, 511c) second coupling part of Zhi Chiing (542b, 542c) and with the corresponding second and the 3rd drive rod (400b, 400c) the 3rd coupling part of hinge (543b, 543c).
  2. 2. according to the tripping operation syndeton of claim 1, wherein said circuit breaker is mounted to has upside-down triangle shape.
CNB981029426A 1998-06-05 1998-06-05 Trip link structure for circuit breaker Expired - Lifetime CN1143342C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CNB981029426A CN1143342C (en) 1998-06-05 1998-06-05 Trip link structure for circuit breaker

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CNB981029426A CN1143342C (en) 1998-06-05 1998-06-05 Trip link structure for circuit breaker

Publications (2)

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CN1238545A CN1238545A (en) 1999-12-15
CN1143342C true CN1143342C (en) 2004-03-24

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CNB981029426A Expired - Lifetime CN1143342C (en) 1998-06-05 1998-06-05 Trip link structure for circuit breaker

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Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2919957B1 (en) * 2007-08-08 2009-10-30 Areva T & D Ag METALLIC ENCLOSURE METALLIC ENCLOSURE TYPE SWITCHING DEVICE WITH REDUCED PHASE TRASMISSION FORCES AND REDUCED PHASE TRASMISSION FORCES
KR101082216B1 (en) 2009-08-14 2011-11-09 엘에스산전 주식회사 Transfer device for automatic transfer switch

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