Local ventilation equipment and blower therein

Ventilation equipment comprising:

• a main body that includes (i) a first intake port in a first portion of the main body and (ii) an interior area of the main body;
• and
• a blower that is located in the interior area of the main body and that is configured to generate air flow from an exterior area of the main body into the interior area of the main body through the first intake port,
• wherein the blower includes:
• an impeller that is configured to rotate about a rotation shaft extending in a first direction, the impeller including an interior area to which air flows through an opening of the impeller,
• a scroll housing that accommodates the impeller and that includes a first surface defining a suction hole through which air flows from an exterior area of the scroll housing into the interior area of the impeller, the scroll housing having a cylindrical shape with open sides,
• a mounting portion that is located at the first surface of the scroll housing, the mounting portion including a plurality of support members that are integrally formed with the scroll housing, that are arranged along a circumference of the scroll housing, and that are spaced apart from one another,
• a driving unit that is coupled to the mounting portion, that is disposed outside the impeller, and that is disposed between the main body and the scroll housing, the driving unit being configured to rotate the impeller,
• wherein each of the support members extends from an outer circumferential surface of the scroll housing toward a center of the suction hole, and is coupled to the driving unit at a position closer to the center of the suction hole than to the outer circumferential surface of the scroll housing,
• wherein the drive unit includes:
• a rotor and a stator,
• a motor case that has a flat hexahedral shape, the motor case including (i) a case body that has a flat cylindrical shape, that is disposed at a center region of the motor case, and that accommodates the rotor and stator therein, and (ii) a plurality of coupling parts that are disposed at an edge of the case body, that are integrally formed with the case body, and that couple the case body to the support members at the position closer to the center of the suction hole than to the outer circumferential surface of the scroll housing, and
• a shaft that connects between the impeller and the rotor,
• wherein a length of each of the plurality of coupling parts in the first direction is shorter than a length of the case body in the first direction, and
• wherein the case body is disposed at a position corresponding to an inside of the suction hole, and protrudes toward an inner surface of the scroll housing relative to an outermost part of the support members facing the inner surface of the scroll housing.