Cooling structure for ultraprecise linear motor

CN102882314A

A linear motor and cooling structure technology, applied in cooling/ventilation devices, electrical components, electromechanical devices, etc., can solve problems such as heat exchange and side temperature rise, and achieve the effect of suppressing heat exchange and increasing thrust density

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Publication Date: 2013-01-16HARBIN INST OF TECH

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Patent Information

Authority / Receiving Office: CN · China
Patent Type: Applications(China)
Current Assignee / Owner: HARBIN INST OF TECH
Publication Date: 2013-01-16

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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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Description

technical field

[0001] The invention relates to a cooling structure of an ultra-precision linear motor, belonging to the technical field of linear motors. Background technique

[0002] The ultra-precision linear motor is the actuator that guarantees the operation of the ultra-precision servo system. With the development of nanotechnology and biotechnology, the requirements for thrust density and thrust accuracy of ultra-precision linear motors are gradually increasing, which leads to an increase in the current density of the motor windings, and the copper loss increases accordingly. Since the current ultra-precision position servo system uses a laser displacement sensor, it has high requirements on the constant temperature of the ambient temperature, and the ultra-precision servo system has a high integration density. During operation, the ultra-precision linear motor used is difficult. Avoid heat dissipation to the outside world, and the ultra-precise position servo system...

Claims

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