Unlock instant, AI-driven research and patent intelligence for your innovation.

Encoder and motor device

An encoder and signal detection technology, applied in instruments, converting sensor output, measuring devices, etc., can solve problems such as cost increase

Inactive Publication Date: 2014-01-22
YASKAWA DENKI KK
View PDF4 Cites 12 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For this reason, there is a problem that, in order to ensure the mounting area of ​​the two magnetic field detection elements, the substrate is enlarged, and the encoder and the motor are enlarged, and the cost is increased.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Encoder and motor device
  • Encoder and motor device
  • Encoder and motor device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0049] Embodiments will be described in detail below with reference to the drawings.

[0050]

[0051] First, refer to figure 1 The configuration of the servo system according to this embodiment will be described. like figure 1 As shown, the servo system S according to this embodiment includes a servo motor SM and a control device CT. Furthermore, the servo motor SM has an encoder 100 and a motor M. As shown in FIG.

[0052] The motor M is an example of a power generation source that does not include the encoder 100 . Although the motor M alone may be called a servo motor, in this embodiment, the configuration including the encoder 100 is called a servo motor SM. This servo motor SM corresponds to an example of a motor. The motor M has a shaft SH, and outputs torque by rotating the shaft SH around a rotation axis AX.

[0053] In addition, the motor M is not particularly limited as long as it is controlled based on data detected by the encoder 100 such as position data,...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

An encoder (100) and a motor device (SM) that can be reduced in size and cost by reducing the number of magnetic field detecting elements are provided. The encoder includes a rotary disc (110), a magnetic detection mechanism to magnetically detect rotation of the rotary disc (110), an optical detection mechanism (131, SL, SA, PD, PA) to optically detect the rotation of the rotary disc (110), an A-phase pulse generator (141) configured to generate an A-phase pulse signal (PH-A) based on an output from the magnetic detection mechanism (MG, 120), a B-phase pulse generator (142) configured to generate a B-phase pulse signal (PH-B) of which a phase is different from the A-phase pulse signal (PH-A) by 90° based on an output from the optical detection mechanism (131, SL, SA, PD, PA), and a counter (143) configured to detect a multiple turning amount of the rotary disc (110) based on the A-phase pulse signal (PH-A) and the B-phase pulse signal (PH-B).

Description

technical field [0001] The disclosed embodiments relate to an encoder and a motor. Background technique [0002] There is known an encoder that detects multiple rotations of a rotating body. For example, Patent Document 1 discloses an encoder that includes an A-phase magnetic field detection element and a B-phase magnetic field detection element, detects a magnetic flux leakage from a magnetic body portion of a rotating disk, and outputs 1 signals that are out of phase by 90 degrees from each other. pulse / revolution signal. [0003] Patent Document 1: Japanese Patent No. 4453037 [0004] The magnetic field detection element is installed on the substrate opposite to the rotating disc. Generally, the magnetic field detection element is a component with a large size and high cost among the elements mounted on the substrate. Here, the above-mentioned conventional encoder includes two magnetic field detection elements. Therefore, there is a problem in that, in order to ensur...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): G01D5/347
CPCH02K11/0026H02K11/0021G01B7/30G01D5/3473G01D5/145H02K11/215H02K11/22G01D5/24447G01D2205/26
Inventor 渡邉敦文
Owner YASKAWA DENKI KK