centrifugal fan

A centrifugal fan and damper technology, used in mechanical equipment, machines/engines, liquid fuel engines, etc., can solve problems such as affecting production or use, increasing air supply resistance, and low air supply efficiency, and achieving smooth and reasonable air supply. The effect of large air volume and air supply

Active Publication Date: 2018-12-14
QINGDAO HAIER SPECIAL REFRIGERATION ELECTRIC APPLIANCE CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This will increase the cost, and in some special occasions, due to space constraints, multiple fans cannot be installed, which will affect production or use. In addition, the installation of external joints not only increases the cost but also greatly increases the air supply resistance, reducing the air volume. , low air supply efficiency

Method used

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  • centrifugal fan
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Examples

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Embodiment Construction

[0040] figure 1 is a schematic structural diagram of a centrifugal fan according to an embodiment of the present invention; figure 2 and image 3 They are respectively a schematic exploded view of a centrifugal fan and a schematic exploded view of a partial structure according to an embodiment of the present invention. Such as Figure 1 to Figure 3 As shown, the embodiment of the present invention provides a centrifugal fan. The centrifugal fan may include a casing 20 , a wind wheel 30 , multiple sets of damper flaps 40 , a rotating member 50 and a transmission mechanism 60 .

[0041] The case 20 may have a bottom case part 21 , a peripheral wall part 22 and a cover part 23 . Specifically, the bottom case part 21 may be in the shape of a plate, and the cover part 23 may also be in the shape of a plate. The peripheral wall portion 22 can be integrally formed with the cover portion 23 , that is, the peripheral wall portion 22 extends from the cover portion 23 to the bottom...

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PUM

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Abstract

A centrifugal fan comprises a housing (20) having an air inlet provided on a cover portion (23) thereof and a plurality sets of air outlets provided on a peripheral wall portion (22) thereof; a wind wheel (30) configured to urge the air flow flowing into the housing (20) via the air inlet and out of the housing (20) via one or more of the plurality of the air outlets; a plurality groups of damper blocking plates (40), each of the damper blocking plates (40) being movably mounted to an air outlet and configured to be controllably moved to a different obstructing position to completely shield, partially shield, or fully expose the air outlet so as to adjust the air blowing area of the air outlet; a rotating member (50) rotatably mounted on the housing (20); and a transmission mechanism configured to transmit the rotational movement of the rotating member (50) to the plurality of damper blocking plates (40). In the centrifugal fan, the blocking plates (40) can be moved by rotating the rotating member (50) to controllably shield the plurality of air outlets so as to achieve blowing air in multiple directions at the same time and to achieve a reasonable air supply by choosing air blowing directions and adjusting air volume of each outlet.

Description

technical field [0001] The invention relates to the technical field of fan air supply, in particular to a centrifugal fan. Background technique [0002] Existing centrifugal fans are provided with only one air outlet. When it is necessary to supply air to two or more different directions or multiple positions, it is necessary to install multiple fans or add external joints matching the fans to meet the needs of different directions or locations. The demand for air supply in multiple locations. This will increase the cost, and in some special occasions, due to space constraints, multiple fans cannot be installed, which will affect production or use. In addition, the installation of external joints not only increases the cost but also greatly increases the air supply resistance, reducing the air volume. , The air supply efficiency is low. Contents of the invention [0003] An object of the present invention is to overcome at least one defect of the existing centrifugal fan...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F04D17/08F04D29/42F04D29/46F04D27/00
CPCF04D17/08F04D27/002F04D29/4246F04D29/464
Inventor 费斌程学丽纪璇李登强
Owner QINGDAO HAIER SPECIAL REFRIGERATION ELECTRIC APPLIANCE CO LTD
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