JPS6192017U - - Google Patents

Description

[Brief explanation of the drawing]

Figure 1 is a perspective view of one embodiment of this invention;
The figure is an exploded perspective view showing a permanent magnet block according to one embodiment of this invention. 1... Electromagnetic block, 2... Permanent magnet block, 3... Roughly U-shaped yoke, 4... Iron core, 4
a...Central magnetic pole part, 5...Coil, 6a, 6b,
7a, 7b... Opposing magnetic pole parts, 6c, 7c... Notches at both ends of a generally U-shaped yoke, 8... Permanent magnet, 9... Recessed part of permanent magnet, 10, 11... Magnetic material piece.

Claims (1)

[Claims for Utility Model Registration] (1) A generally U-shaped yoke is connected to an iron core in a roughly E-shape, the free end of the iron core is the central magnetic pole, and the notches formed at both ends of the yoke are An electromagnetic block whose protrusions facing each other serve as opposing magnetic poles, and a permanent magnet whose cross section perpendicular to the magnetization direction is U-shaped. The permanent magnet block is sandwiched between both ends so as to cover the permanent magnet block. An electromagnet device in which a permanent magnet block is moved in forward and reverse directions within the notch by the action of a permanent magnet and a coil. (2) A utility model in which either one of the areas of the opposing magnetic poles that move in the positive direction and come in contact with the permanent magnet block and the area of the opposing magnetic poles that move in the opposite direction and make contact with each other is relatively larger than the other. An electromagnetic device according to claim 1. (3) The electromagnet device according to claim 1 or 2 of the utility model registration claim, in which the permanent magnet block does not protrude outside the yoke of the electromagnet block.