Part-I - Controller General of Patents Designs and Trademarks

(12) PATENT APPLICATION PUBLICATION (21) Application No.3741/DEL/2011 A
(19) INDIA
(22) Date of filing of Application :20/12/2011 (43) Publication Date : 21/06/2013
(54) Title of the invention : ELECTRIC MOTOR HAVING HEAT PIPES
(51) International classification :H01R
(31) Priority Document No :NA
(32) Priority Date :NA
(33) Name of priority country :NA
(86) International Application No
:NA
Filing Date
:NA
(87) International Publication No :NA
(61) Patent of Addition to Application Number :NA
Filing Date
:NA
(62) Divisional to Application Number
:NA
Filing Date
:NA
(71)Name of Applicant :
1)JOY RIDE TECHNOLOGY CO., LTD.
Address of Applicant :NO. 20, NAN KANG 3RD ROAD,
NANTOU CITY, NANTOU COUNTY, TAIWAN
2)CHIA-WEN RUAN
(72)Name of Inventor :
1)CHAI-WEN RUAN
2)YI-TANG WEI
3)MING-CHEN LIAO
(57) Abstract :
An electric motor includes a rotor unit (2) disposed rotatably in a motor housing (3). The rotor unit (2) includes a rotor shaft (21)
rotatable relative to the motor housing (3) about a central axis (X) of the motor housing (3), a heat conductive seat (22) mounted
with a magnet member (24) and sleeved on an intermediate, portion (213) of the rotor shaft (22), and angularly spaced apart heat
pipes (23) extending through an end portion (212) of the rotor shaft (21) thicker than the intermediate portion (213) and into the
seat (22) . Each heat pipe (23) has an end portion (232) disposed outward of the rotor shaft (21) , and extending into and in
thermal contact with a heat conductive impeller (5) connected to the end portion (212) of the rotor shaft (21) to co-rotate with the
rotor shaft (21) . A stator unit (4) is mounted fixedly in and is in thermal contact with the motor housing (3) , and is disposed
around the rotor unit (2). Figure 3
No. of Pages : 23 No. of Claims : 10
The Patent Office Journal 21/06/2013 13467