CN217520507U - Magnetic code disc structure for absolute value magnetic encoder and magnetic encoder - Google Patents
Magnetic code disc structure for absolute value magnetic encoder and magnetic encoder Download PDFInfo
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- CN217520507U CN217520507U CN202221320183.1U CN202221320183U CN217520507U CN 217520507 U CN217520507 U CN 217520507U CN 202221320183 U CN202221320183 U CN 202221320183U CN 217520507 U CN217520507 U CN 217520507U
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Abstract
The utility model discloses a magnetic code disc structure for an absolute value magnetic encoder and a magnetic encoder, wherein the magnetic code disc structure comprises an outer magnetic ring and an inner magnetic ring which are isolated by a non-magnetic metal aluminum alloy material; the inner magnetic ring is of a single-pair magnetic pole structure and is used for writing a single-pair magnetic signal; the outer magnetic ring comprises a first path of magnetic tracks and a second path of magnetic tracks from inside to outside; a plurality of pairs of magnetic signals are written in the first magnetic track and the second magnetic track; wherein the first track is used as a shielding track, and the second track is used as a signal output track. Meanwhile, in order to prevent magnetic interference of the inner magnetic ring and the outer magnetic ring, the inner magnetic ring and the outer magnetic ring are respectively magnetized and then assembled together, and the magnetic code disc with the structure and the signal writing mode can be suitable for a high-resolution absolute value servo motor.
Description
Technical Field
The utility model relates to a magnetic encoding technical field, in particular to absolute value is magnetic encoding dish structure and magnetic encoder for magnetic encoder.
Background
An encoder is a device for converting angular displacement or linear displacement into an electric signal, and is widely applied to industries such as mechanical automation and the like. The encoder mainly comprises a magnetic encoder and an optical encoder, and compared with the optical encoder, the magnetic encoder has the characteristics of vibration resistance, corrosion resistance, pollution resistance, interference resistance and wide temperature, and particularly shows the stability in harsh environments. The magnetic encoder is mainly composed of a magnetic resistance sensor, a magnetic code disc, a signal processing circuit, a main body structure and the like, wherein the magnetic code disc is used for magnetic signal writing, and the magnetic performance of the magnetic encoder is the key for determining the accuracy of the magnetic encoder.
The signal of the traditional magnetic code disk is usually written with two paths of magnetic signals along the circumference, one path is used for generating an AB phase signal, and the other path is used for generating a Z phase signal, but the structure is only limited to the application of an incremental magnetic encoder and is not suitable for a magnetic code disk for a high-resolution absolute value magnetic encoder.
SUMMERY OF THE UTILITY MODEL
To the above problem, an object of the utility model is to provide an absolute value is magnetic encoding dish structure and magnetic encoder for magnetic encoder, applicable in the high resolution absolute value servo motor.
In order to solve the above technical problem, an embodiment of the present invention provides the following solutions:
on one hand, the magnetic code disc structure for the absolute value magnetic encoder is provided, and comprises an outer magnetic ring and an inner magnetic ring, wherein the outer magnetic ring and the inner magnetic ring are isolated by a non-magnetic metal aluminum alloy material; the inner magnetic ring is of a single-pair magnetic pole structure and is used for writing a single-pair magnetic signal; the outer magnetic ring comprises a first magnetic track and a second magnetic track from inside to outside; a plurality of pairs of magnetic signals are written in the first magnetic track and the second magnetic track; wherein the first track is used as a shielding track, and the second track is used as a signal output track.
Preferably, the outer magnetic ring and the inner magnetic ring are assembled after magnetic signals are written into the outer magnetic ring and the inner magnetic ring respectively.
In another aspect, a magnetic encoder is provided, which includes the magnetic code disc structure for absolute value magnetic encoder.
The embodiment of the utility model provides a beneficial effect that technical scheme brought includes at least:
the embodiment of the utility model provides an in, magnetic code wheel is a compound magnetic ring that two magnetic rings that form are kept apart by non-magnetic metal aluminum alloy material, and interior magnetic ring writes in single to the magnetic signal, and outer magnetic ring writes in the many pairs of magnetic signals of two ways, and wherein outer magnetic ring inner lane is for preventing interior magnetic ring single to the magnetic pole influence outer track and the shielding magnetic track of special design, outer magnetic ring outer track is used for as the signal output magnetic track to improve magnetic sensor's magnetic signal. Meanwhile, in order to prevent magnetic interference of the inner magnetic ring and the outer magnetic ring, the inner magnetic ring and the outer magnetic ring are respectively magnetized and then assembled together, and the magnetic code disc with the structure and the signal writing mode can be suitable for a high-resolution absolute value servo motor.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
Fig. 1 is a schematic diagram of a magnetic code disk structure for an absolute value magnetic encoder according to an embodiment of the present invention.
As shown in the drawings, in order to clearly realize the structures of the embodiments of the present invention, specific structures and devices are labeled in the drawings, but this is only for illustration purpose, and it is not intended to limit the present invention to the specific structures, devices and environments, and those skilled in the art can adjust or modify these devices and environments according to specific needs, and the adjustment or modification is still included in the protection scope of the present invention.
Detailed Description
To make the objects, technical solutions and advantages of the present invention clearer, embodiments of the present invention will be described in further detail below with reference to the accompanying drawings.
The embodiment of the utility model provides a magnetic code wheel structure for absolute value magnetic encoder, as shown in fig. 1, the magnetic code wheel structure includes outer magnetic ring 1 and inner magnetic ring 2, separates through non-magnetic metal aluminum alloy material 3 between outer magnetic ring 1 and the inner magnetic ring 2; the inner magnetic ring 2 is of a single-pair magnetic pole structure and is used for writing a single-pair magnetic signal; the outer magnetic ring 1 comprises a first track 101 and a second track 102 from inside to outside; a plurality of pairs of magnetic signals are written in the first track 101 and the second track 102; the first track 101 is used as a mask track, and the second track 102 is used as a signal output track.
Furthermore, in order to prevent the magnetic interference of the inner magnetic ring and the outer magnetic ring, the outer magnetic ring 1 and the inner magnetic ring 2 are assembled after magnetic signals are respectively written in.
Correspondingly, the utility model also provides a magnetic encoder, magnetic encoder includes that foretell absolute value is magnetic code wheel structure for magnetic encoder.
The embodiment of the utility model provides an in, magnetic code wheel is a compound magnetic ring that two magnetic rings that form are kept apart by non-magnetic metal aluminum alloy material, and interior magnetic ring writes in single to the magnetic signal, and outer magnetic ring writes in the many pairs of magnetic signals of two ways, and wherein outer magnetic ring inner lane is for preventing interior magnetic ring single to the magnetic pole influence outer track and the shielding magnetic track of special design, outer magnetic ring outer track is used for as the signal output magnetic track to improve magnetic sensor's magnetic signal. Meanwhile, in order to prevent magnetic interference of the inner magnetic ring and the outer magnetic ring, the inner magnetic ring and the outer magnetic ring are respectively magnetized and then assembled together, and the magnetic code disc with the structure and the signal writing mode can be suitable for a high-resolution absolute value servo motor.
It should be noted that references in the specification to "one embodiment," "an example embodiment," "some embodiments," etc., indicate that the embodiment described may include a particular feature, structure, or characteristic, but every embodiment may not necessarily include the particular feature, structure, or characteristic. Further, when a particular feature, structure, or characteristic is described in connection with an embodiment, it is submitted that it is within the knowledge of one skilled in the relevant art to effect such feature, structure, or characteristic in connection with other embodiments whether or not explicitly described.
In general, terms may be understood at least in part from the context in which they are used. For example, the term "one or more" as used herein may be used to describe any feature, structure, or characteristic in the singular or may be used to describe a combination of features, structures, or characteristics in the plural, depending at least in part on the context. Additionally, the term "based on" may be understood as not necessarily intended to convey an exclusive set of factors, but may instead allow for the presence of other factors not necessarily explicitly described, depending at least in part on the context.
The present invention covers any alternatives, modifications, equivalents, and alternatives falling within the spirit and scope of the invention. In the following description of the preferred embodiments of the present invention, specific details are set forth in order to provide a thorough understanding of the present invention, and it will be apparent to those skilled in the art that the present invention may be practiced without these specific details. In other instances, well-known methods, procedures, flows, components, circuits, and the like have not been described in detail as not to unnecessarily obscure aspects of the present invention.
The above description is only for the preferred embodiment of the present invention, and is not intended to limit the present invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included within the protection scope of the present invention.
Claims (3)
1. A magnetic code disc structure for an absolute value magnetic encoder is characterized by comprising an outer magnetic ring and an inner magnetic ring, wherein the outer magnetic ring and the inner magnetic ring are isolated by nonmagnetic metal aluminum alloy materials; the inner magnetic ring is of a single-pair magnetic pole structure and is used for writing a single-pair magnetic signal; the outer magnetic ring comprises a first magnetic track and a second magnetic track from inside to outside; a plurality of pairs of magnetic signals are written in the first magnetic track and the second magnetic track; wherein the first track is used as a shielding track, and the second track is used as a signal output track.
2. The magnetic code disk structure for absolute value magnetic encoder according to claim 1, wherein the outer magnetic ring and the inner magnetic ring are assembled after magnetic signals are written thereto, respectively.
3. A magnetic encoder comprising the magnetic code disk structure for absolute value magnetic encoders according to claim 1 or 2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221320183.1U CN217520507U (en) | 2022-05-30 | 2022-05-30 | Magnetic code disc structure for absolute value magnetic encoder and magnetic encoder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221320183.1U CN217520507U (en) | 2022-05-30 | 2022-05-30 | Magnetic code disc structure for absolute value magnetic encoder and magnetic encoder |
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| Publication Number | Publication Date |
|---|---|
| CN217520507U true CN217520507U (en) | 2022-09-30 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202221320183.1U Active CN217520507U (en) | 2022-05-30 | 2022-05-30 | Magnetic code disc structure for absolute value magnetic encoder and magnetic encoder |
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| CN (1) | CN217520507U (en) |
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2022
- 2022-05-30 CN CN202221320183.1U patent/CN217520507U/en active Active
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