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US 9,805,893 B2Granted
Electromagnetic relay
AssigneeOMRON Corporation
InventorSeiki Shimoda
Life of this patent
Estimating the term…
Abstract
An electromagnetic relay (100) has high wear resistance, high corrosion resistance, and good magnetic properties. The electromagnetic relay (100) includes a magnetic component including an alloy layer on its surface formed by diffusion-coating of at least one element selected from the group consisting of Cr, V, Ti, and Al. The alloy layer has a thickness of 5 to 60 μm, inclusive.
Claims4
An electromagnetic relay, comprising:
- an electromagnetic device including a magnetic component and a coil, the magnetic component including an iron component prepared by processing an iron material;
- and
- a contact configured to be open and closed in cooperation with magnetization and demagnetization of the electromagnetic device,
- wherein the iron component includes an alloy layer on a surface thereof, and the alloy layer is formed by diffusion-coating of at least one element selected from the group consisting of Cr, V, and Al diffused and penetrated into the iron component, and
- the alloy layer has a thickness in a range of 5 to 60 μm inclusive, and
- wherein a total of a maximum content of the at least one element selected from the group consisting of Cr, V, and Al at a plurality of positions in the alloy layer is in a range of 29 to 50 wt % inclusive at an exterior surface of the alloy layer.
3 more elements
Dependencies are inferred from the claim text.