Blower unit and air conditioning unit including the same and method of controlling the same
AssigneeDenso Corporation
InventorsMasakazu Nagaya, Koji Ito, Takahiro Tokunaga
Life of this patent
Estimating the term…
Abstract
A blower unit of an air conditioning unit including a scroll casing including a first engaging portion, a fan casing including a first engaging portion, and a controller for controlling an electric motor to move at least one of the scroll casing and the fan casing such that the movement of at least one of the scroll casing and the fan casing stops when the first engaging portion of the scroll casing abuts the first engaging portion of the fan casing. The precision of the position of the scroll casing with respect to the fan casing, the precision of the temperature of air discharged into the compartment, and/or the volume of the blower unit may be improved.
Claims29
A blower unit comprising:
- a scroll casing accommodating a fan therein, the scroll casing including a first engaging portion;
- a fan casing accommodating the scroll casing therein, the fan casing including a first engaging portion;
- and
- a controller for controlling an electric motor to move at least one of the scroll casing and the fan casing such that the movement of at least one of the scroll casing and the fan casing stops when the first engaging portion of the scroll casing abuts the first engaging portion of the fan casing, wherein
- the first engaging portion of the scroll casing is an outward protruding portion protruding radially outward away from the fan, and the first engaging portion of the fan casing is an inward protruding portion protruding radially inward toward the fan.
A blower unit comprising:
- a scroll casing accommodating a fan therein, the scroll casing including a first engaging portion;
- a fan casing accommodating the scroll casing therein, the fan casing including a first engaging portion;
- and
- a controller for controlling an electric motor to move at least one of the scroll casing and the fan casing such that the movement of at least one of the scroll casing and the fan casing stops when the first engaging portion of the scroll casing abuts the first engaging portion of the fan casing, wherein
- the first engaging portion of the scroll casing is an outward protruding portion and the first engaging portion of the fan casing is an inward protruding portion;
- and
- the outward protruding portion is an edge portion of a drive gear attached to the scroll casing and the first protruding portion of the fan casing is a first step portion.
A blower unit comprising:
- a scroll casing accommodating a fan therein, the scroll casing including a first engaging portion;
- a fan casing accommodating the scroll casing therein, the fan casing including a first engaging portion;
- and
- a controller for controlling an electric motor to move at least one of the scroll casing and the fan casing such that the movement of at least one of the scroll casing and the fan casing stops when the first engaging portion of the scroll casing abuts the first engaging portion of the fan casing, wherein
- the first engaging portion of the scroll casing is an inward protruding portion protruding radially inward toward the fan and the first engaging portion of the fan casing is an outward protruding portion protruding radially outward away from the fan.
An air conditioning unit comprising:
- a blower unit generating air flow;
- an air conditioning case disposed on a downstream side of the air flow;
- a first air path accommodated in said air conditioning case;
- a second air path accommodated in said air conditioning case;
- said air conditioning case including an air opening, through which air from said first air path and air from said second air path may pass therethrough;
- said blower unit including:
- a scroll casing accommodating a fan therein, the scroll casing including a first engaging portion;
- a fan casing accommodating the scroll casing therein, the fan casing including a first engaging portion;
- and
- a controller for controlling an electric motor to move at least one of the scroll casing and the fan casing such that the movement of at least one of the scroll casing and the fan casing stops when the first engaging portion of the scroll casing abuts the first engaging portion of the fan casing.
Dependencies are inferred from the claim text.