Air blower and air supply device using the same
A technology of blower and air outlet, which is applied to pump devices, components of pumping devices for elastic fluids, machines/engines, etc., and can solve problems such as reduced air volume
Active Publication Date: 2021-07-09
NIDEC CORP
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- Abstract
- Description
- Claims
- Application Information
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Problems solved by technology
In addition, when the above-mentioned end portion of the second wind tunnel is opened, there is a possibility that the air blowing volume will decrease for the same reason as above.
Method used
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[0028] Hereinafter, an embodiment of the exemplary embodiment of the present invention will be described in detail with reference to the drawings. Further, in the present specification, the axis of the center of rotation as the axis of the motor is referred to as "central axis", and the direction extends extension extends is simply "axial direction". Further, the direction of the center axis is simply discounted to the center axis as "radial", which will be simply referred to as "circumferential" in the direction of the arc-centered arc as a central axis.
[0029] Further, in the present specification, in order to facilitate explanation, the shape and position relationship of each portion will be described in the vertical direction of the blower as the vertical direction in the vertical direction to the axial direction, and will be described. At this time, the axial direction is set to "upper", and the other side of the axial direction is set to "Under". Further, the axial directi...
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The invention provides a blower and an air blower using the blower. The casing of the blower has: a first air inlet, which is located on the axial side of the first impeller; The position on the other side of the axial direction; an air supply port, which is located on the radially outer side of the shaft than the first impeller and the second impeller; the first wind tunnel, which communicates with the first air suction port and the air supply port; The second wind tunnel communicates with the second air inlet and the air outlet; and a wall separates the first wind tunnel and the second wind tunnel in the axial direction. The first wind tunnel and the second wind tunnel have a first opening and a second opening, respectively, at positions on the most upstream side in the respective air flow directions in the circumferential direction. The axial thickness of the wall portion becomes thinner from the start end of the wall portion positioned upstream in the direction of air flow in the circumferential direction toward the end end of the wall portion positioned downstream.
Description
Technical field [0001] The present invention relates to a blower and a blowing device using the delivery fan. Background technique [0002] In the past, a centrifugal blower having two impellers was proposed. For example, in the blower disclosed in Patent Document 1, the first impeller and the second impeller are respectively connected at both ends of the rotation axis of the motor. When the first impeller and the second impeller are rotated, the air is sucked into the interior of the bodies from the axial ends. This air travels along the circumference of the box. [0003] The wind tunneus (hereinafter also referred to as the first wind hole) formed by the air flowing through the first impeller rotation and in the interior of the casing is formed. Further, the wind tunneus (hereinafter also referred to as a second wind hole) internally disposed in the casing is provided inside the casing to rotate through the second impeller. The first wind hole is completely separated from the s...
Claims
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IPC IPC(8): F04D25/08F04D29/42F04D29/44F04D29/66F04D29/70
CPCF04D25/08F04D29/4226F04D29/424F04D29/441F04D29/663F04D29/703
Inventor 刘俊贤李柏毅
Owner NIDEC CORP