Electromagnet for low voltage electrical appliance

Abstract

The invention discloses an electromagnet for a low voltage electrical appliance, comprising a static iron core, a movable iron core and at least one coil arranged on the static iron core or the movable iron core, wherein a lug boss is formed on the movable iron core, and a gap is reserved between two pole shoes of the static iron core and opposite to the lug boss; and the movable iron core is T-shaped and comprises a pole face and the lug boss, and the lug boss extends into the gap between the two pole shoes of the static iron core. The electromagnet for the low voltage electrical appliance can possess a decreased size, reduce the use of materials and maintain the large attractive force.

Description

Technical field [0001] The invention relates to an electromagnet, in particular to an electromagnet for low-voltage electrical appliances. Background technique [0002] When the current DC electromagnet reaches a large stroke, the volume requirement is relatively large due to more magnetic leakage, and a large number of ampere turns are required, and the coil volume and the core volume are required to be large, so iron and copper consumption must be increased. [0003] Nowadays, the widely used electromagnets, whether they are traction electromagnets, push electromagnets, brake electromagnets, or electromagnets for various AC contactors, have common problems such as high power consumption, high noise, and impact when closing. Severe, low life, requires excellent electrical silicon steel plates, difficult to process and manufacture, large copper consumption, large volume, poor moving core orientation, and generally only vertical installation during use. In response to these problem...

AI Technical Summary

Problems solved by technology

[0003] The electromagnets that are widely used now, whether they are traction electromagnets or push electromagnets, brake electromagnets, or electromagnets for various AC contactors, have the common problems of high power consumption, high noise, and impact when they are attracted. Serious, low service life, requires high-quality electrical silicon steel plates, difficult processing and manufacturing, high copper consumption, large volume, poor guide of the moving core, generally can only be installed vertically when in use

[0007] The above-mentioned patents all change the characteristics of the electromagnet by adding permanent magnets and other structures. Although the volume of the electromagnet is reduced, the structural changes are large, and permanent magnets and other parts are added.

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