The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Oct. 29, 2002

Filed:

Feb. 12, 2001
Applicant:
Inventors:

Ji Hyun Hwang, Kyoungki-do, KR;

Do Hyun Kim, Kyoungki-do, KR;

Ki Ha Lee, Seoul, KR;

Assignee:

Mirae Corporation, Chunan-si, KR;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H02K 4/100 ; H02K 9/00 ;
U.S. Cl.
CPC ...
H02K 4/100 ; H02K 9/00 ;
Abstract

An apparatus for controlling cooling of a linear motor includes: a stator having a first temperature sensor, a heat sink and at least one cooling fan installed at a predetermined portion thereof; a mover having a second temperature sensor and a heat sink installed at the upper surface thereof; an encoder for sensing a position of the mover and generating a position signal; an A/D converter for receiving and converting signals from the first and the second temperature sensors and outputting a first and a second temperature sensing signals; a controller for generating a plurality of cooling fan control signals and an air valve control signal to cool the heat generated from the stator and the mover; a D/A converter for converting the plurality of cooling fan control signals and the air valve control signal and transmitting a plurality of drive signals to the plurality of cooling fans and to the air valve; and a mover driver for providing a drive signal to a coil block.


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