5 results about "Magnetic isolation" patented technology

The invention provides an electromagnetic actuator with redundant air gaps, which comprises a stator and a rotor, and is characterized in that the stator comprises a stator frame, a magnet yoke, a magnetism isolating ring, a magnet ring and a lock nut; the rotor comprises a coil framework and an annular coil. An upper permanent magnet branch magnetic circuit and a lower permanent magnet branch magnetic circuit are formed in a single-layer magnetic pole structure, permanent magnet flux shunting is achieved, overall magnetic saturation is relieved, the adopted magnetic isolation ring plays a role of redundant air gaps, local magnetic saturation of the magnet yoke is further relieved, the axial size and the radial size are effectively reduced, and installation and carrying are convenient. The electromagnetic actuator can be repeatedly used, is large in thrust density, is small in size, is light in weight, and achieves the time-sharing speed-regulation release of nano satellites with different masses.

The invention provides a magnetic mobile phone side key, the keyway comprises an outer section groove, a middle section groove and an inner section groove. The outer section groove and the middle section groove are connected to the step. The inner section groove upper and lower ends are inclined surfaces. The middle section groove is built in elastic a portion, the outer end of which extends intothe outer section groove and is provided with a pressing portion, the outer circumference of which is located at the step and is provided with an elastic resetting member between the steps. The elastic portion is provided with elastic supporting legs which are fitted with the inclined surface at both ends, and the connecting porting is provided at the end. The elastic support leg and the oppositesides of the inclined surface are respectively provided with a magnetic element and a magnetic conductive element. Elastic protrusion and a conductive base are arranged inside the elastic part. A magnetic isolation plate is arranged inside the side wall of the mobile phone case, and the connecting section is pressed and fixed on the side wall of the mobile phone case. A connecting groove for accommodating connecting section is disposed at the lower ends of the magnetic shielding plate and the side wall of the mobile phone case. The magnetic separation plate is provided with a supporting columnand a through hole, and the elastic protrusion passes through the through hole. An elastic sleeve is sleeved on the protrusion. The invention automatically aligns when assembling, avoids the loss ofthe side key drop, avoids the linkage phenomenon, improves the pressing feel, and prevents the water from entering.