Cooling structure for ultraprecise linear motor

By installing a copper foil thermal conductive ring outside the winding of the ultra-precision linear motor, the problem of temperature rise on the side of the bilateral surface-mounted cooling structure is solved, heat shielding and thrust density are improved, ensuring precise position detection of the motor and constant ambient temperature. sex.

CN102882314AActive Publication Date: 2013-01-16HARBIN INST OF TECH
8 Cites 4 Cited by

Patent Information

Application Number
CN201210404823.1
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2012-10-23
Publication Date
2013-01-16
Estimated Expiration
2032-10-23

AI Technical Summary

Technical Problem

The bilateral surface-mounted cooling structure of the existing ultra-precision linear motor causes the side temperature to increase, which easily causes heat exchange with the environment, making it difficult to meet the constant temperature requirements for the ambient temperature.

Method used

A copper foil thermal conductive ring is installed on the outer surface of the winding and fixed with structural glue to increase the heat conduction path, direct the heat from the side of the winding to the cooling plate, block the heat from being released to the outside through the side of the motor, and achieve thermal shielding.

Benefits of technology

It effectively suppresses the temperature rise of the winding, increases the thrust density, reduces the heat exchange between the motor and the outside world, ensures the precise position detection conditions of the motor, and does not change the volume of the motor.

✦ Generated by Eureka AI based on patent content.
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Abstract

The invention relates to a cooling structure for an ultraprecise linear motor and belongs to the technical field of linear motors. The cooling structure solves the problem of proneness to heat exchange with environment caused by high side temperature of two-side surface-mounted cooling structures of existing linear motors. The cooling structure comprises a winding supporting portion, a winding and a heat conductive portion, wherein the winding is fixed on the surface of the winding supporting portion, the heat conductive portion is arranged on the surface on the outer side and fixedly connected with the winding supporting portion, the heat conductive portion is a copper foil ring which fits the outer profile of the winding and is sleeved and fixed on the surface on the outer side of the winding, or the heat conductive portion is a copper foil heat conductive ring formed by arraying multiple copper foil sections in a dispersed manner, the copper coil heat conductive ring fits the outer profile of the winding, and each copper coil section is fixed on the surface on the outer side of the winding. The cooling structure for the ultraprecise linear motor is suitable for cooling of linear motors.
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Citation Information

Patent Citations

  • Canned linear motor armature and canned linear motor

    CN101657956A

  • Cooling system of brake coil

    CN1540839A

  • Surface mount type aluminum motor casing

    CN201947100U

  • Steel plate frame rotary electric machine

    JP1984010150A

  • Linear motor

    JP2002044928A

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