CN203503579U

CN203503579U - Electromagnetic system of electric leakage buckle release

Info

Publication number: CN203503579U
Application number: CN201320572681.XU
Authority: CN
Inventors: 王昭万; 范奇文; 刘俊
Original assignee: Zhejiang Tengen Electric Co Ltd
Current assignee: Zhejiang Tengen Electric Co Ltd
Priority date: 2013-09-16
Filing date: 2013-09-16
Publication date: 2014-03-26
Anticipated expiration: 2023-09-16

Abstract

The utility model provides an electromagnetic system of an electric leakage buckle release, and mainly used for solving the problem of bad buckle releasing effect of an electric leakage buckle release in the prior art. The electromagnetic system is characterized in that: a static iron core is disposed in an accommodation chamber, the static iron core is fixed at one end of the accommodation chamber, and the other end of the accommodation chamber is a limiting step; a dynamic iron core is located between the static iron core and the limiting step, and is capable of moving between the static iron core and the limiting step; a push rod is also disposed in the accommodation chamber, one end of the push rod is contacted with the dynamic iron core, the other end stretches out of the static iron core, and an elastic element used for resetting is disposed on the push rod. The electromagnetic system is characterized in that: the static iron core is added, so that an attraction force of the electromagnetic system is increased efficiently, a buckle releasing force generated by the electromagnetic system of the electric leakage buckle release is improved, and reliable action of an electric leakage breaker is guaranteed by employing the combination of the dynamic iron core and the static iron core.

Description

Leakage tripping device electromagnetic system

Technical field

The utility model relates to a kind of leakage tripping device, is specifically related to a kind of leakage tripping device electromagnetic system.

Background technology

Along with China's upgrading of rural power grids recent years and State Grid's installation code are revised, residual current circuit breaker is indispensable protection components and parts in circuit on power system, thereby needs more reliable residual current circuit breaker to guarantee circuit and personal safety.

What in the current major part of China, all use is electronic type residual current circuit breaker, and the voltage of the type residual current circuit breaker and accessory power supply has direct relation, need in low-voltage (50V～) situation, produce residual operating current, and residual current circuit breaker also can be moved.Thereby the electromagnetic system requirement to residual current circuit breaker release is very high, needs leakage tripping device electromagnetic system can produce enough tripping forces, drives tripping mechanism action.

Yet the tripping force that the electromagnetic system of existing residual current circuit breaker release produces is unsatisfactory, existence cannot drive release action, the problem that dropout effect is bad.

Utility model content

In order to overcome the deficiency of background technology, the utility model provides a kind of leakage tripping device electromagnetic system, solves the bad problem of existing residual current circuit breaker release dropout effect.

The technical scheme that the utility model adopts: a kind of leakage tripping device electromagnetic system, comprise coil rack, around the coil windings on coil rack, described coil rack is provided with the cavity volume axially communicating, in described cavity volume, be provided with moving iron core, in described cavity volume, be provided with static iron core, described static iron core is fixed on one end of cavity volume, and the described cavity volume other end is limited step; Described moving iron core, between static iron core and limited step, and can move between static iron core and limited step; In described container, be also provided with push rod, described push rod one end contacts with moving iron core, and the other end passes static iron core; Described push rod is provided with the flexible member of reset.

Described moving iron core, the material of static iron core are pure iron.

Described coil rack two ends are connected by yoke.

The material of described yoke is iron.

Described push rod is in T shape.

Described flexible member is spring, and one end contacts with static iron core, and the other end contacts with push rod.

The beneficial effects of the utility model are: adopt above scheme, increased static iron core, utilized the combination of moving iron core and static iron core, the more effective increase electromagnetic system suction of energy, improve the tripping force that leakage tripping device electromagnetic system produces, guarantee residual current circuit breaker action message.

Accompanying drawing explanation

Fig. 1 is the utility model example structure schematic diagram.

The moving iron core of 1-in figure, 2-push rod, 3-yoke, 4-coil windings, 5-static iron core, 6-spring, 7-coil rack, 8-limited step, 9 cavity volumes

Embodiment

Below in conjunction with accompanying drawing, the utility model embodiment is described further:

As shown in Figure 1, a kind of leakage tripping device electromagnetic system, comprise coil rack 7, around the coil windings 4 on coil rack 7, described coil rack 7 is provided with the cavity volume 9 axially communicating, in described cavity volume 9, be provided with moving iron core 1, static iron core 5, push rod 2, described static iron core 5 is fixedly mounted on one end of cavity volume 9; Described cavity volume 9 other ends are provided with limited step 8; Described moving iron core 1, between static iron core 5 and limited step 8, and can move between static iron core 5 and limited step 8; Described push rod 2 one end contact with moving iron core 1, and the other end passes static iron core 5; Described push rod 2 is in T shape, is provided with spring 6 above, and described spring 6 one end contact with static iron core 5, and the other end contacts with push rod 2.Increased static iron core 5, utilized the combination of moving iron core 1 and static iron core 5, the more effective increase electromagnetic system suction of energy, improves the tripping force that leakage tripping device electromagnetic system produces, and guarantees residual current circuit breaker action message.

Described moving iron core 1, the material of static iron core 5 are pure iron, and the material of pure iron makes electromagnetic effects better.

Described coil rack 7 two ends are connected by yoke 3, and the material of described yoke 3 is iron, this makes the magnet-wire of electromagnetic system more concentrated, more be conducive to increase magnetic flux and electromagnetic system electromagnetic force, thereby improve the tripping force that leakage tripping device electromagnetic system produces, further guaranteed the action message of drop point circuit breaker.

The specific works process of the utility model embodiment is as follows, when having alternating voltage, coil windings 4 two ends exist, coil windings 4 is the in the situation that of alternating voltage, and can produce Bing Gai magnetic field, magnetic field will, moving iron core 1, static iron core 5 magnetization, make to produce suction between iron core 1, static iron core 5; Promote push rod 2 motions, make push rod 2 promote residual current circuit breaker tripping mechanism, guarantee residual current circuit breaker dropout; When coil windings 4 both end voltage disappear, in electromagnetic system, without suction, under the effect of spring 6, push rod 2 is resetted and guarantee that residual current circuit breaker releasing structure normally closes a floodgate.

Claims

1. a leakage tripping device electromagnetic system, comprise coil rack (7), around the coil windings (4) on coil rack (7), described coil rack (7) is provided with the cavity volume (9) axially communicating, in described cavity volume (9), be provided with moving iron core (1), it is characterized in that: in described cavity volume (9), be provided with static iron core (5), described static iron core (5) is fixedly mounted on one end of cavity volume (9); Described cavity volume (9) other end is provided with limited step (8); Described moving iron core (1) is positioned between static iron core (5) and limited step (8), and can between static iron core (5) and limited step (8), move; In described cavity volume (9), be also provided with push rod (2), described push rod (2) one end contacts with moving iron core (1), and the other end passes static iron core (5); Described push rod (2) is provided with the flexible member of reset.

2. leakage tripping device electromagnetic system according to claim 1, is characterized in that: described moving iron core (1), the material of static iron core (5) are pure iron.

3. leakage tripping device electromagnetic system according to claim 1, is characterized in that: described coil rack (7) two ends are connected by yoke (3).

4. leakage tripping device electromagnetic system according to claim 3, is characterized in that: the material of described yoke (3) is iron.

5. leakage tripping device electromagnetic system according to claim 1, is characterized in that: described push rod (2) is in T shape.

6. leakage tripping device electromagnetic system according to claim 5, its spy is being: described flexible member is spring (6), and one end contacts with static iron core (5), and the other end contacts with push rod (2).