Title:
Portable electric power unit
Document Type and Number:
Japanese Patent JP6124574
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a portable power supply unit of such a structure that ensures excellent heat dissipation from a detachable rechargeable battery, and facilitates excellent cooling of an electronic circuit board in a power supply unit case.SOLUTION: A portable power supply unit is configured so that a rechargeable battery 1 can be attached detachably to a power supply unit case 2 including an electronic circuit board 4 for power supply, and a heat sink 3. The power supply unit case 2 includes a central side wall 24 facing the lateral side of the rechargeable battery 1, and an outer side wall 25 facing the central side wall 24 at a predetermined interval. The heat sink 3 is attached to the outside of the outer side wall 25, the electronic circuit board 4 for power supply is mounted on the inside of the outer side wall 25, and a space S for thermal insulation is formed between the electronic circuit board 4 and the central side wall 24.
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Inventors:
Shigenori Kimura
Hideo Yoshii
Shigeki Hayashi
Hideo Yoshii
Shigeki Hayashi
Application Number:
JP2012267527A
Publication Date:
May 10, 2017
Filing Date:
December 06, 2012
Export Citation:
Assignee:
Kubota Corporation
International Classes:
H01M10/613; H01M10/44; H01M10/6235; H02J7/00; H05K5/02; H05K7/20
Domestic Patent References:
| JP3034655U | ||||
| JP7274533A | ||||
| JP11097869A | ||||
| JP56110688U | ||||
| JP2009028357A | ||||
| JP2012054007A | ||||
| JP57059499U | ||||
| JP2010009990A |
Attorney, Agent or Firm:
Shuichiro Kitamura
Yoshitaka Hatayama
Otono Taiyo
Yoshitaka Hatayama
Otono Taiyo