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Mounting structure for external rotor motor encoder

A technology of external rotor motor and installation structure, applied in the direction of electromechanical devices, structural connections, electrical components, etc., can solve the problems of easy contact between the encoder and the outside world, encoder damage, encoder translocation, etc., to avoid translocation or even damage , to avoid the effect of interference

Pending Publication Date: 2018-11-06
江苏领新电气科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the installation method of the encoder in the motor makes the encoder easy to contact with the outside world, and accidental bumps cause the encoder to displace, the encoder’s detection result of the motor is inaccurate, and it is easy to cause the encoder to be damaged

Method used

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  • Mounting structure for external rotor motor encoder
  • Mounting structure for external rotor motor encoder

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] Such as figure 1 and figure 2 As described above, an installation structure of an encoder for an outer rotor motor includes a rotor 1 , an encoder 2 and a stator 3 , and the encoder 2 is installed between the rotor 1 and the stator 3 .

[0023] The rotor 1 includes a casing 11 and a rotating shaft 12, one end of the rotating shaft 12 is firmly connected with the casing 11, the rotating shaft 12 is cylindrical, the stator 3 includes a stator coil 31, a driving PCB board 32 and a mounting plate 33, and the mounting plate 33 is provided with a bearing hole 34 , a bearing 35 is fixedly installed in the bearing hole 34, the rotating shaft 12 passes through the bearing 35, the rotating shaft 12 matches the bearing 35, the stator coil 31 and the driving PCB board 32 are rings, the stator coil 31 and the driving PCB board 32 are set in the bearing hole 34 on the outer circle, the stator coil 31 and the drive PCB 32 are fixed on the mounting plate 33 by bolts.

[0024] The en...

Embodiment 2

[0029] Such as figure 1 and figure 2 As described above, an installation structure of an encoder for an outer rotor motor includes a rotor 1 , an encoder 2 and a stator 3 , and the encoder 2 is installed between the rotor 1 and the stator 3 .

[0030] The rotor 1 includes a casing 11 and a rotating shaft 12, one end of the rotating shaft 12 is firmly connected with the casing 11, the rotating shaft 12 is cylindrical, the stator 3 includes a stator coil 31, a driving PCB board 32 and a mounting plate 33, and the mounting plate 33 is provided with a bearing hole 34 , a bearing 35 is fixedly installed in the bearing hole 34, the rotating shaft 12 passes through the bearing 35, the rotating shaft 12 matches the bearing 35, the stator coil 31 and the driving PCB board 32 are rings, the stator coil 31 and the driving PCB board 32 are set in the bearing hole 34 on the outer circle, the stator coil 31 and the drive PCB 32 are fixed on the mounting plate 33 by bolts.

[0031] The en...

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Abstract

The invention discloses a mounting structure for an external rotor motor encoder. The mounting structure comprises a rotor, an encoder and a stator, wherein the rotor comprises a housing and a rotating shaft; the stator comprises a stator coil, a driving PCB and a mounting plate; a bearing hole is formed in the mounting plate; a bearing is fixedly mounted in the bearing hole; the rotating shaft ismatched with the bearing; the stator coil and the driving PCB are fixed on the mounting plate through bolts; the encoder is a magnetic encoder or a photoelectric encoder; a positioning groove is formed in the housing; a signal magnetic ring or an optoelectronic signal coded disc adheres to the interior of the positioning groove with glue; and a sensor PCB or a photoelectric reading head is mounted at the upper end of the stator, is connected onto the PCB through a connector assembly, and is electrically connected with the driving PCB. The encoder is mounted in the motor, so that the conditionthat the encoder is interfered by an external light source or a magnetic field and is polluted by dust and oil stain is avoided, the environment in the motor is relatively stable and is convenient tocontrol, and the fragile encoder can be protected.

Description

technical field [0001] The invention relates to the technical field of motor structure, in particular to an installation structure of an outer rotor motor encoder. Background technique [0002] Encoder is a kind of sensor, which is mainly used to detect the speed, position, angle and distance of mechanical movement. In motor control, the encoder is used to feed back the collected information about the speed, position, angle and distance of motor rotation to the motor Driver, the motor driver controls the rotation of the motor according to the feedback signal to form a closed-loop control to achieve precise control of the speed, position, angle and distance of the motor rotation. The encoder plays a key role in motor control. [0003] The encoders installed on the motor can be divided into photoelectric encoders and magnetic encoders. In some applications, resolvers are also used as a special encoder. Choose different encoders to work with the motor according to different ap...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02K11/21H02K11/215H02K11/22
CPCH02K11/21H02K11/215H02K11/22
Inventor 俞幸姜晓锋孔祥振陆志明
Owner 江苏领新电气科技有限公司