| 摘要 |
A blower unit includes a case divided into an upper case portion having an air introduction port, a lower case portion for accommodating a fan, and a bell-mouth portion interposed between the upper and lower case portion portions. An air leading port is provided in the bell-mouth portion, so that air sucked from the air introduction port is introduced to the fan through the air leading port. An attachment boss portion onto which a motor is attached is formed to protrude from an outer wall surface of the upper case portion. Air blown by the fan flows through a duct which is divided into a first member integrated with the bell mouth portion and a second member integrated with the lower case portion. The first member extends from the bell mouth portion obliquely to cover the attachment portion, and the second member extends from the lower case portion in the same direction as the first member to be engaged with the first member. Thus, each of the upper case portion, the bell-mouth portion integrated with the first member and the lower case portion integrated with the second member is simply molded from resin by using a die.
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