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Permanent magnet device for low-voltage electrical apparatus

A technology for permanent magnets and low-voltage electrical appliances, which can be used in permanent magnets, snap-action devices, stepless relays, etc., and can solve problems such as failures

Inactive Publication Date: 2008-06-11
孟令春
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] There are many patent documents on the application of permanent magnets to low-voltage electrical appliances, but almost all of these patented technologies have failed in actual production

Method used

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  • Permanent magnet device for low-voltage electrical apparatus
  • Permanent magnet device for low-voltage electrical apparatus

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0044] Fig. 1 is a basic embodiment of the present invention. In the figure, there is a through inner hole 2 on the permanent magnet 1; the upper shape of the inner hole 2 is frustum-shaped, and the lower shape of the inner hole 2 is columnar.

Embodiment 2

[0046] Fig. 2 is one of the embodiments created by the present invention, which is further limited and added some technical features on the basis of the above-mentioned basic device. The upper shape of the inner hole 2 is a frusto-conical shape, and the lower shape of the inner hole 2 is a cylindrical shape. The permanent magnet 1 is installed on the plate body of the chord plate 3 , and a nail 4 is installed in the inner hole 2 of the permanent magnet 1 . There is a pad 5 between the nail 4 and the wall of the inner hole 2 to isolate it.

Embodiment 3

[0048]Fig. 3 is another embodiment created by the present invention, which is further limited on the basis of Fig. 1 or Fig. 2 and some technical features are added, and in addition, some technical features parallel to Fig. 2 are implemented. The frustoconical part of the inner hole 2 accounts for 2 / 3 of the depth of the inner hole 2, and the cylindrical part of the inner hole 2 accounts for 1 / 3 of the depth of the inner hole 2. The permanent magnet 1 is installed on the plate body of the chord plate 3 , and a nail 4 is installed in the inner hole 2 of the permanent magnet 1 . The upper top surface of the nail 4 is lower than the upper surface of the permanent magnet 1 , and the lower part of the nail 4 passes through the choke plate 3 . There is no spacer 5 between the nail 4 and the wall of the inner hole 2 , and the nail 4 is in direct contact with the wall of the inner hole 2 . The choke plate 3 is fixed on the seat body of the upper seat 6; a wire core 8 is arranged unde...

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Abstract

The invention discloses a permanent magnetic device for low-voltage electrical apparatus characterized by that, a through bore is arranged on the permanent magnet, the upper shape of the bore is frustum, and the lower shape of the bore is column. The permanent magnetic bore according the invention is not equivalent to the mere column or frustum shape bore of the ring form permanent magnetic in that, the wall of the latter has magnetic attracting force, while the wall portion of the former has no or smaller magnetic attracting force.

Description

technical field [0001] The technical field of the technical solution claimed by the invention is low-voltage electrical appliances, especially the permanent magnet device in the low-voltage electrical appliances. Background technique [0002] There are many patent documents on the application of permanent magnets to low-voltage electrical appliances, but almost all of these patented technologies end in failure in actual production. The reason is that a key special structure based on permanent magnets has not been studied by people. The existing technologies that are relatively close to the present invention include: magnetic holding contactor (Patent No. ZL01230931), permanent magnet pull-in type AC contactor without power consumption (Patent No. ZL00204601), energy-saving contactor (Patent No. ZL 99210484), microelectric Energy-saving reciprocating device (Patent No. ZL 98205482), AC contactor without holding current (Patent No. ZL 98237581), intelligent passive running co...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01F7/02H01H5/02H01H51/01
Inventor 孟令春
Owner 孟令春
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