Login| Sign Up| Help| Contact|

Patent Searching and Data


Title:
BUOY
Document Type and Number:
Japanese Patent JP2014110690
Kind Code:
A
Abstract:

To provide a buoy capable of obtaining sufficient power by thermoelectric generation.

The buoy comprises: a chamber 3 provided with a first portion 4 and a second portion 7 each thermally connected to water and atmospheric air, the internal pressure of the chamber 3 being reduced; a thermoelectric element 18 thermally connected inside the chamber 3 to each of the first portion 4 and the second portion 7; first and second rechargeable batteries 21, 22 to which a first power P1 output from the thermoelectric element 18 is charged; a processing unit 30 driven by a second power P2 output from the first rechargeable battery 21; a heating wire 23 disposed inside the chamber 3 and caused to generate heat by a third power P3 output from the second rechargeable battery 22; and a first control unit 31 for charging the second rechargeable battery 22 with the first power P1 when a voltage V1 of the first rechargeable battery 21 is higher than or equal to a first prescribed voltage Vs1, and stopping supply of the first power P1 to the second rechargeable battery 22 when the voltage V1 is lower than the first prescribed voltage Vs1.


Inventors:
Kurihara, Kazuaki
Chiba, Hiroshi
Application Number:
JP2012000264121
Publication Date:
June 12, 2014
Filing Date:
December 03, 2012
Export Citation:
Click for automatic bibliography generation   Help
Assignee:
FUJITSU LTD
International Classes:
H02J7/34; B63B22/00; B63B35/00; H02N11/00
Domestic Patent References:
JP2003298434A2003-10-17
JPH0939880A1997-02-10
JPH0817446A1996-01-19
JPH07223583A1995-08-22
JP2010026742A2010-02-04
JP2006006025A2006-01-05
Foreign References:
US20110099991A12011-05-05
Attorney, Agent or Firm:
岡本 啓三



 
Previous Patent: MOTOR-DRIVEN DIRECT-ACTING ACTUATOR

Next Patent: ACTUATOR