Magnet capable of being spliced at arbitrary length and magnetic core employing same

Abstract

The invention discloses a magnet capable of being spliced at an arbitrary length and a magnetic core. The magnet comprises a magnet main body, wherein the cross section of the magnet main body is in around annular shape, a clamping groove and / or a protruding position is formed in an end surface of the magnet main body, and a protruding position and / or a clamping groove is correspondingly arrangedin the other end surface and is matched with the clamping groove and / or a protruding position so as to achieve splicing of more than two magnet main bodies. The magnetic core is provided with a coreshaft, and a plurality of magnetic beads are arranged on the core shaft. By the magnet employing the structure, a plurality of magnets can be spliced, and the magnet is formed by injection molding ofa ferrite and is high in size accuracy and high in consistency; when the magnetic core is used for different types of printers / copiers, the magnets in different numbers only are needed to be spliced on the core shaft to achieve the required length, and thus, the magnet is high in universality, low in cost and high in practicability, and can be produced on a large scale and in a standard way; and meanwhile, the thickness of the magnet is reasonably designed, the length increment change of a part of a magnetic strip on the magnetic core can be controlled.

Description

technical field [0001] The invention relates to the technical field of printer / copier magnetic cores, in particular to a magnet that can be used on a printer / copier magnetic core and can be spliced ​​to any degree, and a printer / copier magnetic core using the magnet. Background technique [0002] Current printer / copier cores such as Figure 4 and Figure 5 As shown, it includes a mandrel 4 and a plurality of magnetic strips 5 surrounding the surface of the mandrel 4. The number of magnetic strips 5 is set according to the number of magnetic core poles required by the printer / copier. If a four-level magnetic core is required, then Four magnetic strips 5 are arranged around the surface of the mandrel 4, and the magnetic pole directions of two adjacent magnetic strips 5 are opposite, so that the cross-sectional distribution of the magnetic poles in the magnetic core is that N poles and S poles are arranged at intervals. In the traditional production process, the magnetic strip...

AI Technical Summary

Problems solved by technology

Since different types of printers / copiers such as A2 and A0 use different lengths of printer / copier magnetic cores to meet the printing requirements of different sizes and specifications, when producing and applying to different types of printers / copiers, it is necessary to sinter the production length and The corresponding magnetic strip 5 has high production cost, and the sintered magnetic strip 5 has low dimensional accuracy, and the applicable range of the magnetic core is small

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