US 6,375,440 B2 · Fan unit, fan assembly, and an apparatus comprising the fan assembly

Abstract

The fan unit has a fan 150, fan housing frame 110, and fan housing cover 170. The fan 150 has a frame 151, a fan blade 152 freely rotatable to the frame, and a mounting hole 153 disposed to the frame. The box frame 110 has an opening 115 on one (top) side for disposing the fan 150 internally thereto, a ventilation opening in the opposite (bottom) side, and engaging members 117 formed on an inside wall for fitting into a mounting hole 153 of the internally disposed fan and thereby determining the fan position. The cover 170 has a ventilation opening, and an engaging protrusion on an inside wall for fitting into a mounting hole 153 of the fan internally disposed to the fan housing frame. The fan housing cover 170 thus engages the fan housing frame 110 so as to cover the opening 115 into which the fan is installed, and in conjunction with the fan housing frame 110 secures the fan in the fan housing frame.

Claims16

Dependent claims

A fan unit comprising:

a fan having a frame, a fan blade freely rotatable to said frame, and an installation member disposed to said frame;
a fan housing box frame having a bottom surface surrounded by side walls extending to a top surface thereof to form an opening at the top surface for disposing internally thereto said fan, a ventilation opening in the bottom surface, and an engaging member formed on an inside wall for engaging said installation member of the internally disposed fan and determining said fan position;
and
a fan housing cover for engaging said fan housing frame so as to cover the top surface opening in said fan housing frame, and securing said fan disposed internally to said fan housing frame in conjunction with said fan housing frame,
said fan housing cover having a ventilation opening, and an engaging member on an inside wall for engaging said installation member of the fan internally disposed to said fan housing frame.

2 more elements

A fan assembly comprising:

a fan case for housing a fan unit,
said fan unit comprising a fan having a frame and a fan blade freely rotatable to said frame;
a printed circuit board having on one end a card edge for connecting by insertion to a connector, and having mounted thereon a control circuit for controlling fan blade rotation;
and
a fan housing having side walls for internally housing said fan therein, internally housing said printed circuit board with said card edge projecting externally to the front in a specific insertion direction intersecting a direction of air flow of air moved by said fan, and having a ventilation opening on both walls in said direction of air flow;
and
a connector freely removably fixed to the fan case, the connector being connected with the card edge of the printed circuit board projecting forward in the insertion direction by an operation installing the fan unit to the fan case.

4 more elements

An apparatus comprising a fan assembly, the fan assembly having:

a fan case for housing a fan unit,
said fan unit comprising a fan having a frame and a fan blade freely rotatable to said frame;
a printed circuit board having on one end a card edge for connecting by insertion to a connector, and having mounted thereon a control circuit for controlling fan blade rotation;
and
a fan housing having side walls for internally housing said fan therein, internally housing said printed circuit board with said card edge projecting externally to the front in a specific insertion direction intersecting a direction of air flow of air moved by said fan, and having a ventilation opening on both walls in said direction of air flow;
and
a connector freely removably fixed to the fan case, the connector being connected with the card edge of the printed circuit board projecting forward in the insertion direction by an operation installing the fan unit to the fan case.

4 more elements

Dependencies are inferred from the claim text.

Fan unit, fan assembly, and an apparatus comprising the fan assembly

Life of this patent

Fan unit, fan assembly, and an apparatus comprising the fan assembly

Life of this patent

Abstract

Claims16