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Electro-magnetic force driving actuator and circuit breaker using the same

A technology of actuators and electromagnetic force, which is applied in the fields of electromagnetic force driven actuators and circuit breakers, and can solve problems such as high cost, difficult application, and insufficient holding force

Inactive Publication Date: 2011-07-27
EMATECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But the retention force to keep the moving part in the state it has been moved is not strong enough to be easily applied to VCB as-is
For this reason, when a passive component requiring a huge holding force should employ a holding force increasing device such as a double-power device, its structure becomes complicated and the cost becomes high

Method used

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  • Electro-magnetic force driving actuator and circuit breaker using the same
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  • Electro-magnetic force driving actuator and circuit breaker using the same

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0114] in the attached Figure 4 To attach Figure 10 The structure of the actuation according to the preferred embodiment of the present invention is shown in .

[0115] Such as Figure 4 to Figure 10 As shown, an EMFA (100) according to the present invention includes a housing (110). The housing (110) constitutes the general external form of the actuator. The housing (110) can be made of various materials such as iron core, plastic, and the like. However, in order to function as a magnetic circuit, an iron core is preferable. The casing (110) includes: two paths (111) penetrating in the front-rear direction and having a certain length in the up-down direction; an intermediate wall (112) formed in the middle of the paths (111) and penetrating the two paths . In the embodiment of the drawings, it is shown that the housing (110) is in the form of a planar hexagon, but it is not limited to the form in the drawings, and can also be various forms such as cylinders with open ...

Embodiment 2

[0155] attached Figure 19 To attach Figure 21 An EMFA according to the second embodiment of the present invention is shown, and an example of combining a plurality of EMFAs according to the first embodiment of the present invention is shown. This shows that by combining several actuators, combined forms with overall movement can be achieved.

[0156] In this case, the moving element ( 400 ), not shown in the figure, is configured to be connected integrally by a separate rod and move as one. Such as Figure 11 to Figure 13 As shown, the integral connection form of the moving element (400) can be applied to support materials such as the supporting frame (460) that extend appropriately throughout the moving element (400).

[0157] Additionally, the front actuators may share a guide (700a) with the corresponding rear actuators. In this case, instead of arranging the actuators (100a) (100b) adjacently on one side of several actuators as shown, a large magnetic material in wh...

Embodiment 3

[0160] Figure 22 An EMFA according to a third embodiment of the present invention is shown.

[0161] Figure 22 The EMFA shown is based on the Figure 4 to Figure 10 In the actuator (100) disclosed in the first embodiment, only the outer main magnetic field generating element (200) and the first and second outer secondary magnetic field generating elements (500, 550) are installed, and there is no inner main magnetic field generating element (200) and first and second inner secondary magnetic field generating elements (500, 550). In this way, even without the inner main magnetic field generating element (200) and the first and second inner secondary magnetic field generating elements (500, 550), by making the magnetic field of the outer main magnetic field generating element (200) reach the middle wall of the casing (110) (112), the force can move the moving element (400). Furthermore, the coil (400) generates less actuation force (electromagnetic or axial force) than wit...

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Abstract

An electromagnetic force driving actuator and a circuit breaker using the same is disclosed. The actuator comprises a casing that forms two paths having a certain length in longitudinal direction, and forms a middle wall by the two paths; a main magnetic field generation element that is allocated on the both face wall of the two paths of the casing; and a moving element that, as the middle wall is located in the center, a coil, which is bound in the orthogonal direction to longitudinal direction of the paths, is in a body that its left and right sides passes through the paths and its front and back side are exposed to outside, when forward direction or reverse direction current is provided in the coil, moves forward and backward along the longitudinal direction of the paths.

Description

technical field [0001] The present invention relates to an electromagnetic force drive actuator and a circuit breaker using the same for driving a passive element by reciprocating a driver having a coil by the electric repulsion force of the magnetic field of a magnetic generating element and the current density of the coil . Background technique [0002] The circuit breakers installed mainly at the sending and receiving ends of power transmission lines not only open or close the normal current when there is no fault in the transmission system, but also protect the system and numerous electric devices by cutting off the fault current when a fault such as a short circuit occurs ( or load). [0003] These circuit breakers are classified into vacuum circuit breaker (VCB, vacuum circuit breaker), oil circuit breaker (OCB, oil circuit breaker) and gas circuit breaker (GCB, gas circuit breaker) etc. according to the extinguishing / insulating medium. [0004] When the circuit brea...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01H33/38
CPCH02K33/18H01H33/38
Inventor 郑炫教姜钟皓
Owner EMATECH