Search

CN-122001140-A - Thin motor for reducing signal interference

CN122001140ACN 122001140 ACN122001140 ACN 122001140ACN-122001140-A

Abstract

The invention relates to the technical field of motors, and particularly discloses a thin motor for reducing signal interference, which comprises a motor shell, a stator assembly, a rotor assembly, an encoder, a wire holder, a first wire structure and a second wire structure, wherein the stator assembly is arranged on the motor shell; the motor comprises a motor shell, a stator assembly, a rotor assembly and an encoder, wherein the stator assembly comprises a stator coil, a wire holder is fixed on the outer surface of the motor shell, two ends of a first wire structure are respectively connected with the stator coil and the wire holder to transmit power signals, two ends of a second wire structure are respectively connected with the encoder and the wire holder to transmit encoder signals, the first wire structure is wired inside the motor shell, one end of the first wire structure, which is close to the wire holder, extends out of the motor shell, one end of the second wire structure, which is close to the encoder, extends out of the motor shell, and the part of the second wire structure, which extends out of the motor shell, extends out of the outer surface of the motor shell. The invention can reduce the interference between the power supply signal and the encoder signal and ensure the performance of the motor.

Inventors

  • WANG BOGONG

Assignees

  • 江门市蒙德传控有限公司

Dates

Publication Date
20260508
Application Date
20241105

Claims (10)

  1. 1. A thin motor capable of reducing signal interference is characterized by comprising a motor shell, a stator assembly, a rotor assembly, an encoder, a wire holder, a first wire structure and a second wire structure, wherein the stator assembly, the rotor assembly and the encoder are arranged in the motor shell, the stator assembly comprises a stator coil, the wire holder is fixed on the outer surface of the motor shell, two ends of the first wire structure are connected with the stator coil and the wire holder respectively and used for transmitting power signals, two ends of the second wire structure are connected with the encoder and the wire holder respectively and used for transmitting encoder signals, the first wire structure is routed in the motor shell, one end of the first wire structure, which is close to the wire holder, extends out of the motor shell and is connected with the wire holder, one end of the second wire structure, which is close to the encoder, extends out of the motor shell, and the part of the second wire structure, which extends out of the motor shell, is routed on the outer surface of the motor shell.
  2. 2. The thin type motor for reducing signal interference according to claim 1, wherein the outer surface of the motor housing is provided with a wiring groove, and a portion of the second wire structure extending out of the motor housing is wired in the wiring groove.
  3. 3. The thin type motor for reducing signal interference according to claim 1, wherein the first wire structure and the second wire structure are flexible circuit boards.
  4. 4. The low profile motor with reduced signal interference of claim 1, wherein the wire mount is secured to a bottom portion of a side of the motor housing and the first wire structure is routed from a gap between the stator assembly and the motor housing.
  5. 5. The thin type motor for reducing signal interference according to claim 1, wherein the wire holder has two wire outlet holes for respectively passing out a connection wire for transmitting a power signal and a connection wire for transmitting an encoder signal.
  6. 6. The thin motor for reducing signal interference according to any one of claims 1-5, further comprising an output shaft, a mounting seat, a first bearing and a lower end cover, wherein the output shaft penetrates through the motor housing, an inner ring of the first bearing is sleeved on the output shaft, a lower opening through which the first bearing penetrates is formed in the bottom of the motor housing, the mounting seat is arranged in the motor housing, an outer ring of the first bearing is fixedly mounted on the mounting seat, and the lower end cover is fixed on the motor housing and covers the lower opening.
  7. 7. The low profile motor for reducing signal interference of claim 6, wherein said mounting base defines a mounting slot for interfacing with the lower opening, and wherein said first bearing is positioned within the mounting slot.
  8. 8. The thin type motor for reducing signal interference according to claim 6, wherein a concave lower groove is formed in the bottom of the motor housing, the lower opening is formed in the inner wall of the lower groove, the encoder is fixed in the lower groove, the lower end cover covers the lower groove and covers the encoder, the lower end cover is provided with a notch, and the second wire structure extends out of the notch.
  9. 9. The low profile motor with reduced signal interference of claim 6, wherein the first bearing is located inside the stator assembly.
  10. 10. The thin type motor for reducing signal interference according to claim 6, further comprising a second bearing, wherein an inner ring of the second bearing is sleeved on the output shaft, an upper groove is formed in the top surface of the motor housing, the second bearing is located in the upper groove, and an outer ring of the second bearing is fixedly connected with the motor housing.

Description

Thin motor for reducing signal interference Technical Field The invention relates to the technical field of motors, in particular to a thin motor for reducing signal interference. Background The servo motor is an engine for controlling mechanical elements to run in a servo system, can control the speed, has very accurate position accuracy, and is widely applied to various industrial fields. An encoder is generally arranged in the servo motor, and a traditional servo motor is provided with two groups of wires, wherein one group is a power wire for supplying power to a stator coil, and the other group is an encoder wire for feeding back signals from the encoder. Because the power line transmits strong electric signals, and the encoder line transmits weak electric signals, for example, the power line and the encoder line share the same wire holder, the power line and the encoder line can be close to the wiring, especially for a thin motor, and the power line and the encoder line can be close to each other, thereby generating signal interference and affecting the performance of the motor. Disclosure of Invention The invention provides a thin motor capable of reducing signal interference, which can reduce interference between a power signal and an encoder signal and ensure the performance of the motor. In order to solve the problems, the invention adopts the following technical scheme: The embodiment of the invention provides a thin motor for reducing signal interference, which comprises a motor shell, a stator assembly, a rotor assembly, an encoder, a wire holder, a first wire structure and a second wire structure, wherein the stator assembly, the rotor assembly and the encoder are all arranged in the motor shell, the stator assembly comprises a stator coil, the wire holder is fixed on the outer surface of the motor shell, two ends of the first wire structure are respectively connected with the stator coil and the wire holder and used for transmitting power signals, two ends of the second wire structure are respectively connected with the encoder and the wire holder and used for transmitting encoder signals, the first wire structure is routed in the motor shell, one end of the first wire structure, which is close to the wire holder, extends out of the motor shell and is connected with the wire holder, one end of the second wire structure, which is close to the encoder, extends out of the motor shell, and the second wire structure extends out of the outer surface of the motor shell and is routed on the outer surface of the motor shell and is connected with the wire holder. In some embodiments, the outer surface of the motor housing is provided with a wiring groove in which a portion of the second wire structure protruding out of the motor housing is routed. In some embodiments, the first and second wire structures are each flexible circuit boards. In some embodiments, the wire mount is secured to a bottom portion of a side of the motor housing, and the first wire structure is routed from a gap between the stator assembly and the motor housing. In some embodiments, the wire holder has two wire holes, and the two wire holes are respectively used for the connection wire for transmitting the power signal and the connection wire for transmitting the encoder signal to pass out. In some embodiments, the motor further comprises an output shaft, a mounting seat, a first bearing and a lower end cover, wherein the output shaft penetrates through the motor shell, an inner ring of the first bearing is sleeved on the output shaft, a lower opening through which the first bearing can penetrate is formed in the bottom of the motor shell, the mounting seat is arranged in the motor shell, an outer ring of the first bearing is fixedly mounted on the mounting seat, and the lower end cover is fixed on the motor shell and covers the lower opening. In some embodiments, the mounting seat is provided with a mounting groove in butt joint with the lower opening, and the first bearing is positioned in the mounting groove. In some embodiments, the bottom of the motor housing is provided with a concave lower groove, the lower opening is arranged on the inner wall of the lower groove, the encoder is fixed in the lower groove, the lower end cover covers the lower groove and covers the encoder, the lower end cover is provided with a notch, and the second wire structure extends out of the notch. In some embodiments, the first bearing is located inside the stator assembly. In some embodiments, the motor further comprises a second bearing, wherein the inner ring of the second bearing is sleeved on the output shaft, an upper groove is formed in the top surface of the motor shell, the second bearing is positioned in the upper groove, and the outer ring of the second bearing is fixedly connected with the motor shell. The invention has the advantages that the first wire structure for transmitting the power supply signal is wired in the motor shell, one