CN201820720U - Residual current circuit breaker - Google Patents

Abstract

The utility model relates to a residual current circuit breaker which comprises a housing, and a circuit breaker module and an electric leakage module which are arranged in the housing; a module separator plate and a connection separator plate are formed on the housing; a zero line connection hole corresponding to a zero line connection terminal is formed on the module separator plate; the zero line connection terminal extends towards the zero line connection hole and passes through the zero line connection hole; a zero line through-hole is formed in a position on the module separator plate, which corresponds to a connecting plate; one end of a braided wire of a zero line is connected with a zero line connection terminal, and the other end passing through a zero sequence transformer and the zero line through-hole is connected with the connecting plate; a bimetallic through-hole and a live wire through-hole are respectively formed in positions on the module separator plate, which correspond to a bimetallic strip and a coil; and one end of a braided wire of a live wire is connected to the bimetallic strip, and the other end sequentially passing through the bimetallic through-hole, the zero sequence transformer and the live wire through-hole is connected with the coil. Through the live wire in the circuit breaker and the through-holes between the circuit breaker module and the electric leakage module, the residual current circuit breaker achieves connection with the zero sequence transformer without using an external coiling, so that the residual current circuit breaker is compacter and smaller.

Description

Residual current circuit breaker

Technical field

The utility model relates to a kind of residual current circuit breaker.

Background technology

Residual current circuit breaker comprises electric leakage module and the breaker module that is set up in parallel; the live wire of residual current circuit breaker and zero line all will pass zero-sequence transformer; zero-sequence transformer normally is arranged in the electric leakage module of residual current circuit breaker; and be connected live wire in the breaker module to pass zero-sequence transformer just need be with the live wire in the breaker module from the residual current circuit breaker outside around to the electric leakage module; pass the zero-sequence transformer in the electric leakage module; the track lengths of circuit is longer; cabling in breaker module and electric leakage module is more complicated also; again in order to protect outside lead; also need externally to install additional a lead-in wire cover, increased the volume that leaks disconnected circuit breaker.

Summary of the invention

The purpose of this utility model is to overcome the defective of prior art, provides that a kind of volume is small and exquisite, the residual current circuit breaker of compact conformation.

For achieving the above object, the utility model adopts a kind of residual current circuit breaker, comprise shell, in the enclosure breaker module and electric leakage module are set, be provided with zero-sequence transformer in the electric leakage module, be provided with the module dividing plate between breaker module and the electric leakage module, breaker module comprises coil, bimetal leaf, hot terminal group and zero line binding post group, zero line binding post group comprises the zero line binding post, be arranged on the two ends of module dividing plate towards breaker module one side, hot terminal group comprises hot terminal, be arranged on a side of the corresponding zero line binding post of breaker module group, form the wiring dividing plate between hot terminal group and the zero line binding post group, bimetal leaf is arranged on the wiring dividing plate towards hot terminal one side, be connected with hot terminal, coil is arranged on wiring dividing plate upper end, bimetal leaf one end is connected with the live wire litzendraht wire, the live wire litzendraht wire passes zero-sequence transformer and is connected with coil, be connected with the zero line litzendraht wire on the zero line binding post, the zero line litzendraht wire passes zero-sequence transformer and connects with the connecting plate that is connected moving contact, corresponding zero line binding post forms a zero line wiring hole on the module dividing plate, the zero line binding post is to the extension of zero line wiring hole and pass the zero line wiring hole, corresponding connecting plate position forms a zero line through hole on the module dividing plate, zero line litzendraht wire one end connects the zero line binding post, the other end passes zero-sequence transformer and is connected with connecting plate with the zero line through hole, corresponding bimetal leaf and coil position form two golden through holes and live wire through hole respectively on the module dividing plate, live wire litzendraht wire one end is connected on the bimetal leaf, and the other end passes two golden through holes successively, zero-sequence transformer, the live wire through hole is connected with coil.

The beneficial effects of the utility model be by the live wire in the circuit breaker by breaker module and electric leakage the through hole between the module realize and being connected of zero-sequence transformer, need not make residual current circuit breaker compactness, small and exquisite more by outside coiling.

Form the cover plate of a projection on the described wiring dividing plate towards the zero line lead to the hole site.Cover plate can cover the zero line through hole, guarantees that the zero line establishment line that comes out in the through hole can not contact with the live wire litzendraht wire.

Description of drawings

Fig. 1 is that the utility model embodiment master looks cutaway view.

Fig. 2 is the utility model embodiment right view.

Embodiment

As Fig. 1, shown in 2, specific embodiment of the utility model is a kind of residual current circuit breaker, comprise shell 1, in theenclosure breaker module 2 andelectric leakage module 3 are set, be provided with zero-sequence transformer 31 in theelectric leakage module 3, be provided withmodule dividing plate 11 betweenbreaker module 2 and theelectric leakage module 3, breaker module comprisescoil 21,bimetal leaf 22, hot terminal group and zero line binding post group, zero line binding post group comprises zeroline binding post 24, be arranged on the two ends ofmodule dividing plate 11 towardsbreaker module 2 one sides, hot terminal group compriseshot terminal 23, be arranged on a side ofbreaker module 2 corresponding zero line binding post groups, formwiring dividing plate 12 between hot terminal group and the zero line binding post group,bimetal leaf 22 is arranged onwiring dividing plate 12 towards hot terminal one side, be connected withhot terminal 23 by litzendraht wire,coil 21 is arranged onwiring dividing plate 12 upper ends, corresponding zeroline binding post 24 forms a zeroline wiring hole 13 on themodule dividing plate 11, zeroline binding post 24 is to 13 extensions of zero line wiring hole and pass zeroline wiring hole 13, corresponding connecting plate position forms a zero line throughhole 14 on themodule dividing plate 11, form thecover plate 15 of a projection on thewiring dividing plate 12 towards zero line throughhole 14 positions, zeroline litzendraht wire 25 1 ends connect zeroline binding post 24, the other end passes zero-sequence transformer 31 and is connected with connectingplate 26 with zero line throughhole 14,corresponding bimetal leaf 22 andcoil 21 positions form two golden throughholes 16 and live wire throughhole 17 respectively on themodule dividing plate 11, livewire litzendraht wire 27 1 ends are connected on thebimetal leaf 22, and the other end passes two golden throughholes 16 successively, zero-sequence transformer 31, live wire throughhole 17 is connected withcoil 21.

Claims (2)

1. residual current circuit breaker, comprise shell, in the enclosure breaker module and electric leakage module are set, be provided with zero-sequence transformer in the electric leakage module, be provided with the module dividing plate between breaker module and the electric leakage module, breaker module comprises coil, bimetal leaf, hot terminal group and zero line binding post group, zero line binding post group comprises the zero line binding post, be arranged on the two ends of module dividing plate towards breaker module one side, hot terminal group comprises hot terminal, be arranged on a side of the corresponding zero line binding post of breaker module group, form the wiring dividing plate between hot terminal group and the zero line binding post group, bimetal leaf is arranged on the wiring dividing plate towards hot terminal one side, be connected with hot terminal, coil is arranged on wiring dividing plate upper end, bimetal leaf one end is connected with the live wire litzendraht wire, the live wire litzendraht wire passes zero-sequence transformer and is connected with coil, be connected with the zero line litzendraht wire on the zero line binding post, the zero line litzendraht wire passes zero-sequence transformer and connects with the connecting plate that is connected moving contact, it is characterized in that: corresponding zero line binding post forms a zero line wiring hole on the described module dividing plate, the zero line binding post is to the extension of zero line wiring hole and pass the zero line wiring hole, corresponding connecting plate position forms a zero line through hole on the module dividing plate, zero line litzendraht wire one end connects the zero line binding post, the other end passes zero-sequence transformer and is connected with connecting plate with the zero line through hole, corresponding bimetal leaf and coil position form two golden through holes and live wire through hole respectively on the module dividing plate, live wire litzendraht wire one end is connected on the bimetal leaf, and the other end passes two golden through holes successively, zero-sequence transformer, the live wire through hole is connected with coil.

2. residual current circuit breaker according to claim 1 is characterized in that: the cover plate that forms a projection on the described wiring dividing plate towards the zero line lead to the hole site.

Images