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cross flow fan

一种横流风扇、叶片的技术，应用在径向流动泵、用于弹性流体的泵送装置的部件、非变容式泵等方向，能够解决风量损失、流路损失增大、横流风扇强度下降等问题，达到降低流路损失、降低流体损失、减小占据的面积的效果

Active Publication Date: 2016-05-18
DAIKIN IND LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In addition, Patent Document 1 describes a technique in which, when a plurality of support plates are provided, an air volume loss occurs due to the plurality of support plates, resulting in an increase in flow path loss.
However, if the number of support plates is reduced in order to reduce the flow loss caused by the support plates, the strength of the cross flow fan will decrease.

Method used

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Examples

Experimental program
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Embodiment Construction

[0041] Next, a cross-flow fan provided in an indoor unit of an air conditioner will be described as an example of a cross-flow fan according to an embodiment of the present invention.

[0042] (1) Cross-flow fan in the indoor unit

[0043] figure 1 It is a figure which shows the outline of the cross section of the indoor unit 1 of an air conditioner. The indoor unit 1 has a main body casing 2 , an air filter 3 , an indoor heat exchanger 4 , a cross-flow fan 10 , a vertical baffle 5 and a horizontal baffle 6 . Such as figure 1 As shown, an air filter 3 is arranged on the top surface of the main body casing 2 on the downstream side of the suction port 2a so as to face the suction port 2a. An indoor heat exchanger 4 is disposed further downstream of the air filter 3 . All the indoor air reaching the indoor heat exchanger 4 through the suction port 2a passes through the air filter 3 to remove dust.

[0044] The indoor heat exchanger 4 is configured by connecting a front side ...

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PUM

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Abstract

A cross-flow fan that suppresses flow path loss generated in an intermediate plate or the like without reducing the strength of the cross-flow fan. A plurality of blades (40) extend lengthwise from a disc-shaped or annular support plate. The ring portion (61) of the auxiliary ring (60) is located in the middle portion of the plurality of blades (40) in the longitudinal direction, and is arranged outside the outer ends (40a) of the plurality of blades (40). A plurality of connection portions (62) of the auxiliary ring (60) extend from the ring portion (61) to between adjacent ones of the plurality of blades (40), and engage with the blades (40) therebetween. The plurality of connecting portions of the auxiliary ring are respectively engaged with the negative pressure surfaces (40f) of the plurality of vanes, but not engaged with the pressure surfaces (40e) of the plurality of vanes.

Description

technical field [0001] The present invention relates to a cross-flow fan, particularly a cross-flow fan having resin-made blades. Background technique [0002] In the cross-flow fan used in the indoor unit of the air conditioner, a plurality of blades extending in the longitudinal direction are arranged between two disc-shaped or annular support plates arranged at both ends in the longitudinal direction. In addition, as described in Patent Document 1 (Japanese Patent Application Laid-Open No. 05-87086) and the like, a disc-shaped or annular intermediate plate is arranged between two support plates to reinforce the strength of the plurality of blades. . [0003] Summary of the invention [0004] The problem to be solved by the invention [0005] In addition, Patent Document 1 describes a technique in which, when a plurality of support plates are provided, an air volume loss occurs due to the plurality of support plates, resulting in an increase in flow path loss. However,...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F04D17/04
CPCF04D17/04F04D29/283F04D29/282
Inventor 中井聪田中英志加川庆宪松本和弘西村和也
Owner DAIKIN IND LTD