Counter-rotating fan and image capturing device
AssigneeSony Corporation
InventorsManabu Hanjo, Kuniharu Uchikawa, Shigeru Kitamura
Life of this patent
Estimating the term…
Abstract
Sound is reduced after securing sufficient air volume. An intake side fan including a first housing, a first drive motor that functions as a drive source, a first hub that is rotated by drive force of the first drive motor, and a plurality of first impellers that is rotated along with the first hub; and an exhaust side fan including a second housing, a second drive motor that functions as a drive source, a second hub that is rotated by drive force of the second drive motor, and a plurality of second impellers that is rotated along with the second hub are provided. An axial maximum chord length of the first impellers is smaller than an axial maximum chord length of the second impellers.
Claims10
A counter-rotating fan, comprising:
- an intake side fan including a first housing, a first drive motor that functions as a drive source, a first hub that is rotated by drive force of the first drive motor, and a plurality of first impellers that is rotated along with the first hub;
- and
- an exhaust side fan including a second housing, a second drive motor that functions as a drive source, a second hub that is rotated by drive force of the second drive motor, and a plurality of second impellers that is rotated along with the second hub,
- wherein an axial maximum chord length of the first impellers is smaller than an axial maximum chord length of the second impellers.
An image capturing device, comprising:
- an image capturing element that is disposed inside an outer enclosure and converts an optical image into an electrical signal;
- and
- a counter-rotating fan that cools each unit disposed inside the outer enclosure, wherein
- the counter-rotating fan includes:
- an intake side fan including a first housing, a first drive motor that functions as a drive source, a first hub that is rotated by drive force of the first drive motor, and a plurality of first impellers that is rotated along with the first hub;
- and
- an exhaust side fan including a second housing, a second drive motor that functions as a drive source, a second hub that is rotated by drive force of the second drive motor, and a plurality of second impellers that is rotated along with the second hub, and
- an axial maximum chord length of the first impellers is smaller than an axial maximum chord length of the second impellers.
Dependencies are inferred from the claim text.