626 results about "Magnet device" patented technology

A magnet arrangement is described for use with hearing implant systems. An external device for use with an implant system has an external device housing that contains external elements of a hearing implant system. A cylindrical external magnet arrangement within the housing has multiple magnetic sections lying in a common plane, including an inner center disc having an inner magnetic orientation in an inner magnetic direction, and an outer radial ring having an outer magnetic orientation in an outer magnetic direction opposite to the inner magnetic direction.

An electrical connection system includes a plug having contact elements, and a socket having mating contact elements. The plug can be connected magnetically to the socket by means of a magnet device for transmitting signals or current. The magnet device has at least one connection pair, which comprises a magnet and a connecting element, which can be attracted by the magnet, but itself is not in the form of a permanent magnet, wherein respectively the magnet of a connection pair is arranged in the socket, and the connecting element which is not in the form of a permanent magnet is arranged in the plug.

The invention discloses a manufacturing method for a neodymium iron boron lanthanon permanent magnet device with a composite plated film. The manufacturing method includes the steps that an alloy is firstly smelted, and the alloy in a molten state is cast on a rotary copper roller with water cooling to form alloy sheets through cooling; hydrogen decrepitation is then performed, material is mixed after the hydrogen decrepitation, airflow grinding is performed after material mixing, the material is mixed through a mixing machine under the protection of nitrogen and then conveyed to a magnetic field orientation pressing machine protected by nitrogen to be formed, the formed material is encapsuled in a protection box and then taken out to be subjected to isostatic pressing, and then the pressed material is conveyed to sintering equipment for sintering to manufacture a neodymium iron boron lanthanon permanent magnet in a timeliness mode; the neodymium iron boron lanthanon permanent magnet is machined to obtain the neodymium iron boron lanthanon permanent magnet device, then the neodymium iron boron lanthanon permanent magnet device is plated with films, the plated films comprise the first magnetron sputtering plated layer with the thickness of 0.02 micrometer-5 micrometers, the second magnetron sputtering and ion plating mixed plated layer with the thickness of 1 micrometer-10 micrometers and the third magnetron sputtering plated layer with the thickness of 0.1 micrometer-5 micrometers. The composite plated films are adopted in the surface treatment process of the lanthanon permanent magnet device, not only corrosion resistance but also magnetic performance of the lanthanon permanent magnet device are improved.