CN201369306Y

CN201369306Y - Breaker leakage protection and short circuit protection structure

Info

Publication number: CN201369306Y
Application number: CNU2009200075939U
Authority: CN
Inventors: 萧裕杰
Original assignee: ZHANGZHOU MAKE ELECTRONIC TECHNOLOGY Co Ltd
Current assignee: ZHANGZHOU MAKE ELECTRONIC TECHNOLOGY Co Ltd
Priority date: 2009-03-05
Filing date: 2009-03-05
Publication date: 2009-12-23
Anticipated expiration: 2019-03-05

Abstract

The utility model relates to a breaker leakage protection and short circuit protection structure which comprises a moving iron core, a static iron core, an iron core spring, a leakage tripping coil, a short circuit tripping coil and a control circuit; the leakage tripping coil and the short circuit tripping coil are connected with the control circuit; the leakage tripping coil is sheathed in the short circuit tripping coil and uses the same moving iron core, the static iron core and the iron core spring together with the short circuit tripping coil; and a piezoresistor is connected between the output terminal of the leakage tripping coil and the output terminal of the short circuit tripping coil, thus realizing the miniaturization of a short circuiter.

Description

Circuit breaker earth leakage protective and short-circuit protection structure

Technical field

The utility model relates to circuit breaker, is meant circuit breaker earth leakage protective and short-circuit protection structure specifically.

Background technology

Existing earth leakage circuit breaker is provided with electric leakage tripping coil and short circuit tripping coil, has the function of earth leakage protective and short-circuit protection; two coils are installed in different positions; need enough spaces could realize that therefore, the volume of existing earth leakage protective short-circuiting device is very big.

The utility model content

The utility model provides a kind of leak electricity tripping coil and short circuit tripping coil to be installed in circuit breaker earth leakage protective and short-circuit protection structure with a position, can realize the miniaturization of circuit breaker.

The utility model adopts following technical scheme: circuit breaker earth leakage protective and short-circuit protection structure; comprise moving iron core, fixed core, iron core spring, electric leakage tripping coil, short circuit tripping coil, control circuit; electric leakage tripping coil, short circuit tripping coil link to each other with control circuit; it is characterized in that: the electric leakage tripping coil is nested into short circuit tripping coil inside; use with a moving iron core, fixed core and iron core spring with the short circuit tripping coil, be connected a piezo-resistance between the output of electric leakage tripping coil and the output of short circuit tripping coil.

Because the electric leakage tripping coil is nested into short circuit tripping coil inside; use with a moving iron core, fixed core and iron core spring with the short circuit tripping coil; reduced the volume of circuit breaker greatly; realized the miniaturization of circuit breaker; but also between short circuit tripping coil and electric leakage tripping coil, formed an electromotive force; between short circuit tripping coil and electric leakage tripping coil, produce an instant high-voltage; and the piezo-resistance that is connected between the output of output and the short circuit tripping coil of electric leakage tripping coil can absorb the high voltage of generation, effectively protects electronic circuit.

Description of drawings

Fig. 1 is a circuit breaker overall structure schematic diagram;

Fig. 2 is the utility model moving iron core, static iron core and iron core spring structure schematic diagram;

Fig. 3 is the utility model circuit breaker earth leakage protective and short-circuit protection structural representation;

Fig. 4 is the utility model electrical schematic diagram;

Fig. 5 is the utility model electric leakage tripping coil, short circuit tripping coil and piezo-resistance annexation figure.

Embodiment

Describe embodiment of the present utility model in detail below with reference to Fig. 1, Fig. 2, Fig. 3, Fig. 4, Fig. 5.

Circuit breaker earth leakage protective and short-circuit protection structure; comprise moving iron core 5, fixed core 6, iron core spring 7, electric leakage tripping coil 2, short circuit tripping coil 1, control circuit 4; electric leakage tripping coil 2, short circuit tripping coil 1 link to each other with control circuit 4; electric leakage tripping coil 2 is nested into short circuit tripping coil 1 inside; use with a moving iron core 5, fixed core 6 and iron core spring 7 with short circuit tripping coil 1, be connected a piezo-resistance 3 between the output of electric leakage tripping coil 2 and the output of short circuit tripping coil 1.

Because electric leakage tripping coil 2 is nested into short circuit tripping coil 1 inside; use with a moving iron core 5 with short circuit tripping coil 1; fixed core 6 and iron core spring 7; reduced the volume of circuit breaker greatly; realized the miniaturization of circuit breaker; but also between short circuit tripping coil 1 and electric leakage tripping coil 2, formed an electromotive force; between short circuit tripping coil 1 and electric leakage tripping coil 2, produce an instant high-voltage; and the piezo-resistance 3 that is connected between the output of output and the short circuit tripping coil 1 of electric leakage tripping coil 2 can absorb the high voltage of generation, effectively protects electronic circuit.

Above-mentioned is an embodiment of the present utility model, but design concept of the present utility model is not limited thereto, and allly utilizes this design that the utility model is carried out the change of unsubstantiality, all belongs to the behavior of invading the utility model protection range.

Claims

1, circuit breaker earth leakage protective and short-circuit protection structure; comprise moving iron core, fixed core, iron core spring, electric leakage tripping coil, short circuit tripping coil, control circuit; electric leakage tripping coil, short circuit tripping coil link to each other with control circuit; it is characterized in that: the electric leakage tripping coil is nested into short circuit tripping coil inside; use with a moving iron core, fixed core and iron core spring with the short circuit tripping coil, be connected a piezo-resistance between the output of electric leakage tripping coil and the output of short circuit tripping coil.