CN2669352Y

CN2669352Y - Hand-resetting leakage circuit-breaker

Info

Publication number: CN2669352Y
Application number: CNU2003201050433U
Authority: CN
Inventors: 王志佑; 刘东升
Original assignee: Individual
Current assignee: Individual
Priority date: 2003-10-28
Filing date: 2003-10-28
Publication date: 2005-01-05
Anticipated expiration: 2013-10-28

Abstract

The utility model relates to a hand-resetting leakage circuit-breaker, comprising a small circuit-breaker providing with a leakage protective trigging circuit-breaker providing with a hand-resetting mechanism, an N pole acting mechanism, a test button mechanism, an electronic component, a casing, etc. The utility model is characterized in that the hand-resetting mechanism of the leakage protective trigging circuit-breaker is connected with a trigging element by a rotating shaft, the trigging element is positioned between a movable contact and a static contact, the inner side of the trigging element is assembled with a resetting lock catch which can slide upwards and downwards, both end parts of the trigging element and a resetting lock catch are provided with hook platforms which are mutually hooked and the lower end of the resetting lock catch is assembled with the inverse force spring of the lock catch. The utility model has the advantages that the hand-resetting leakage circuit-breaker reduces the occupation of the space for installing the products, extends the range of use, ensures exactly deciding the failure of the creepage of the circuit, is reliable in acting and closing and is reset by hand.

Description

The hand-reset residual current circuit breaker

Technical field

The utility model belongs to a kind of residual current circuit breaker, and particularly a kind of have defencive function to circuit overloads, short circuit, overvoltage and electric leakage, and phase line, the neutral line can cut-off, and has the hand-reset residual current circuit breaker of hand-reset latching device.

Background technology

The residual current circuit breaker that existing market is sold, volume are that (width: 36mm), but the height of its electric leakage main body is higher than circuit breaker to 4 moduluses, and vertical volume is increased, and when using with other analog and digital electrical appliance like this, seems extremely inharmonious.And operating current is 25A to the maximum, and the scope of application is restricted.Main problem is that circuit can directly freely close and close after hindering leakage current action tripping for some reason, without hand-reset, so often mixes up the reason of fault easily, and has reduced the reliability of using.

The utility model content

The purpose of this utility model is in order to overcome the deficiency of present residual current circuit breaker, the residual current circuit breaker that provides, and volume is little, and operating current can reach 40A, and failure cause can obviously distinguish, and after the hand-reset, realizes that safe and reliable pass closes.

The purpose of this utility model is achieved by the following technical solution: it comprises miniature circuit breaker; be provided with hand-reset mechanism; N utmost point actuating mechanism; test button mechanism; the earth leakage protective dropout circuit breaker that electronic building brick and housing etc. are formed; it is characterized in that: connect the dropout part by rotating shaft in the hand-reset mechanism of earth leakage protective dropout circuit breaker; the dropout part is between moving contact and fixed contact; the reset lock that slides up and down is assembled in inboard at the dropout part; dropout part and reset lock end are provided with the hook platform that hooks mutually, the lower end assembling snap close counter-force spring of reset lock.

The utility model has the advantages that: reduce the product installation and take up room, enlarge the scope of application, guarantee circuit leak current fault accuracy of judgement, reliable in action, hand-reset, reliable closing closed.

Description of drawings:

Fig. 1 is structural representation of the present utility model (dynamic and static contact is in the state that closes that closes).

Fig. 2 is the right view of Fig. 1.

Fig. 3 is that contact of the present utility model is in the off-state schematic diagram.

Fig. 4 is that reset lock of the present utility model is depressed, and circuit breaker closes and closes view.

Fig. 5 is that reset lock of the present utility model is upspring, circuit breaker off-state schematic diagram.

Embodiment

See Fig. 2; the utility model concrete structure is as follows: the one pole miniature circuit breaker 15 of an existing structure is set up in parallel with an overall dimension earth leakage protective dropout circuit breaker 16 the same with the one pole miniature circuit breaker; form the electric leakage main body by gangbar, lead continuous (be prior art, do not look out among the figure) between the two.See Fig. 1,3,4,5, in the ambroin housing 13 of earth leakage protective dropout circuit breaker 16, hand-reset mechanism is housed, electronic circuit assembly 17, N utmost point actuating mechanism, test button mechanism 10 etc.; Wherein, the release pin 3 that N utmost point actuating mechanism has coil 4, moves along axis in coil 4, the end assembling fixed contact 1 of coil 4, the moving contact 12 that is connected with binding post 14 is rotatably connected on the housing 13 by axle.The one side assembling counter-force spring 11 of moving contact 12.The handle 6 that is assembled with torsion spring 7 connects lever 9, and an end of lever 9 colludes groove 9-1, colludes the end that groove 9-1 hooks moving contact 12.The utility model in improved main points in the hand-reset mechanism is: connect the dropout part 5 that rotates by little axle 5-1 between fixed contact 1 and moving contact 12, side at dropout part 5 is assembled the reset lock 8 that slides up and down, and reset lock 8 bottoms and dropout part 5 bottoms are provided with hook platform 8-1, the 5-2 that hooks mutually.In reset lock 8 lower ends counter-force spring 2 is housed.In housing 13, assemble test button mechanism 10 and electronic building brick 17 by prior art.

When circuit does not have the leakage current fault; release pin 3 is failure to actuate; reset lock 8 is pinned dropout part 5 one ends by counter-force spring 2; threading off this moment, (gangbar is assembled in position between one pole miniature circuit breaker 15 and the earth leakage protective dropout circuit breaker 16 to part 5 other ends in gangbar; be prior art, do not look out among the figure) the below.Release pin 3 impacts 5 actions of dropout part when the leakage current fault appears in circuit.Dropout part 5 one ends are provoked gangbar, make moving contact 12 throw off fixed contact 1.Part 5 other ends of threading off simultaneously separate with reset lock 8, and reset lock 8 is jumped out.And make dropout part 5 can not return to former snap close position.Moving contact 12 and fixed contact 1 can not close and close this moment.When with hand reset lock 8 being pressed down, under gangbar pressure, dropout part 5 moves down, and locks together again with reset lock 8.

Claims

1, a kind of hand-reset residual current circuit breaker; it comprises miniature circuit breaker; be provided with the earth leakage protective dropout circuit breaker that hand-reset mechanism, N utmost point actuating mechanism, test button mechanism, electronic building brick and housing etc. are formed; it is characterized in that: connect the dropout part by rotating shaft in the hand-reset mechanism of earth leakage protective dropout circuit breaker; the dropout part is between moving contact and fixed contact; the reset lock that slides up and down is assembled in inboard at the dropout part; dropout part and reset lock end are provided with the hook platform that hooks mutually, the lower end assembling snap close counter-force spring of reset lock.