Title:
VEHICLE BRAKE DEVICE
Document Type and Number:
WIPO Patent Application WO/2011/125231
Kind Code:
A1
Abstract:
A vehicle brake device (S) is provided with a disc rotor (11) which is a rotation body, and a brake caliper (12) which is a frictional engagement means. Furthermore, the device (S) is provided with a piece of latent heat storage material (21) housed in a housing space (11b) which is formed in a frictional slide section (11a) of the disc rotor (11). The latent heat storage material (21) undergoes a phase change from a solid phase to a liquid phase due to the frictional heat (thermal energy) generated in the frictional slide section (11a), thereby storing the frictional heat as latent heat. At this time, the volume change accompanying the phase change in the latent heat storage material (21) is absorbed by a volume change absorbing mechanism (22). Moreover, the device (S) is provided with a thermoelectric conversion section (31) which is disposed between a hub section (11c) of the disc rotor (11) and the frictional slide section (11a), namely, the latent heat storage material (21), of the disc rotor (11). Furthermore, a heated surface (31a) is heated by the frictional heat stored in the latent heat storage material (21), and a cooled surface (31b) is maintained at the temperature of the hub section (11c), with the result that the thermoelectric conversion section (31) converts the frictional heat to regenerated electrical power (electrical energy).
Inventors:
TSURUMI Yasuaki (1Toyota-ch, Toyota-shi Aichi, 〒4718571, JP)
Application Number:
JP2010/056633
Publication Date:
October 13, 2011
Filing Date:
April 07, 2010
Export Citation:
Assignee:
TOYOTA JIDOSHA KABUSHIKI KAISHA (1 Toyota-cho, Toyota-shi, Aichi, 〒4718571, JP)
トヨタ自動車株式会社 (〒71 愛知県豊田市トヨタ町１番地 Aichi, 〒4718571, JP)
トヨタ自動車株式会社 (〒71 愛知県豊田市トヨタ町１番地 Aichi, 〒4718571, JP)
International Classes:
B60K25/00; B60T1/10; H01L35/30
Attorney, Agent or Firm:
PROSPEC PATENT FIRM (l2th Floor, NAGOYA-KS Building1-18, Taiko 3-chome, Nakamura-ku, Nagoya-shi, Aichi 01, 〒4530801, JP)
Claims: