| CPC F04D 25/06 (2013.01) [F04D 29/403 (2013.01); F04D 29/582 (2013.01); F04D 29/5813 (2013.01); A01G 20/47 (2018.02)] | 18 Claims |
|
1. A blower, comprising:
a blower body, having accommodated therein a fan and a drive unit comprising a motor, a rotation shaft of the fan defining a longitudinal axis, and the blower body defining an air inlet;
a blow pipe, attached to the blower body and extending along the longitudinal axis, the blow pipe defining an air outlet;
a control unit, for controlling operation of the drive unit, wherein the control unit comprises a control circuit board located at an end of the motor;
wherein the blower defines an airflow path extending from the air inlet to the air outlet, the control unit being at least partially located in the airflow path, such that when the blower is operating, at least a portion of an airflow entering the air inlet cools the control unit and is then discharged through the air outlet;
wherein the blower body comprises a casing in which the fan, motor, and control circuit board are located, the casing comprising an outer ring, an inner ring, and a hollow tapered flow-guiding body connected to the inner ring, the casing further comprising a static vane removably coupled between the inner ring and the outer ring,
wherein the tapered flow-guiding body comprises a wing part forming the static vane, the wing part having an inner wall, an outer wall located at a radially outer side of the inner wall, and a connecting part which connects the inner wall to the outer wall; and an inner ring slot and an outer ring slot which mate with the inner wall and the outer wall are formed in the inner ring and the outer ring of the casing respectively.
|