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Z-axial 128-pole magnet ring

A technology of polar magnetism and magnetic poles, which is applied in the field of magnetic ring encoders, can solve the problems of only electronic Z phase, no calibration, loss of signal, etc., and achieve the effects of reducing production costs, low magnetic permeability, and uniform magnetic poles

Inactive Publication Date: 2015-10-14
科瑞工业自动化系统(苏州)有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For the magnetic ring of the existing magnetic ring encoder, the outer ring of the magnetic ring is uniformly alternated and equally spaced NS magnetic poles, and the magnetic poles cover the entire width of the magnetic ring. The general magnetic pole width is generally 1 mm, 1.2 mm and 5 mm. 2 mm, 2.4 mm and 10 mm, if the existing magnetic ring is used as a magnetic ring encoder, it is impossible to make a physical Z phase out of a circle, only an electronic Z phase, so when the magnetic encoder is used, it will Lost signal without calibration

Method used

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  • Z-axial 128-pole magnet ring
  • Z-axial 128-pole magnet ring
  • Z-axial 128-pole magnet ring

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Embodiment Construction

[0020] The 128-pole magnetic ring with Z direction of the present invention includes a ring-shaped base layer 1, a ferrite layer 2 injection-molded on the base layer 1, and 64 pairs of NS magnetic poles are magnetically arranged in sequence on the inner ring of the base layer 1. The 64 pairs of NS poles include 64 N single poles 3 and 64 S single poles 4 . The present invention has adopted 5 embodiments, and embodiment is as figure 2 As shown, the marked magnetic pole is composed of one N single magnetic pole in 64 pairs of NS magnetic poles. Example two such as image 3 As shown, the marked magnetic pole is composed of one S single magnetic pole among 64 pairs of NS magnetic poles. Embodiment three such as Figure 4 As shown, the marked magnetic poles are composed of one S single magnetic pole and one N single magnetic pole among 64 pairs of NS magnetic poles. Embodiment four such as Figure 5 As shown, the marked poles are composed of 64 pairs of NS poles, two N single...

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Abstract

The invention discloses a Z-axial 128-pole magnet ring characterized by comprising an annular base layer and a ferrite layer cast on the base layer. 64 pairs of NS magnetic poles are orderly magnetically distributed on the inner ring of the base layer; the 64 pairs of NS magnetic poles comprises 64 N single magnetic poles and 64 S single magnetic poles; a marking magnetic pole is formed by one N single magnetic pole and / or an S single magnetic pole of the 64 pairs of NS magnetic poles, or by two N single magnetic poles and one S single magnetic pole; the height of the marking magnetic pole is 1.5 to 2 times higher than the height of the rest single magnetic poles of the 64 pairs of NS magnetic poles; and the height of the marking magnetic pole equals to the height of the base layer. The super-high magnetic hole is employed to be the marking magnetic pole, so the marking magnetic pole for verification can be detected by an encoder at any time and distorting phenomenon due to signal loss in a traditional way can be avoided.

Description

technical field [0001] The invention relates to a magnetic ring, in particular to a 128-pole magnetic ring with a Z direction, which belongs to the magnetic ring encoder technology in the field of industrial automation control. Background technique [0002] The magnetic ring encoder is a position sensor that has developed rapidly in recent years. It is widely used in the field of industrial automation control and other precise position positioning systems, especially in industrial sites with relatively harsh environments. For the magnetic ring of the existing magnetic ring encoder, the outer ring of the magnetic ring is uniformly alternated and equally spaced NS magnetic poles, and the magnetic poles cover the entire width of the magnetic ring. The general magnetic pole width is generally 1 mm, 1.2 mm and 5 mm. 2 mm, 2.4 mm and 10 mm, if the existing magnetic ring is used as a magnetic ring encoder, it is impossible to make a physical Z phase out of a circle, only an ele...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01F7/02G01D5/12
Inventor 邵明栓徐广
Owner 科瑞工业自动化系统(苏州)有限公司
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