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Cross-flow fan

A cross-flow fan and blade technology, applied in radial flow pumps, parts of pumping devices for elastic fluids, non-variable pumps, etc., can solve the loss of air volume, increase of flow path loss, and decrease of cross-flow fan strength and other issues, to achieve the effect of reducing area, reducing flow loss, and cutting costs

Active Publication Date: 2016-03-02
DAIKIN IND LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In addition, Patent Document 1 describes a technique in which, when a plurality of support plates are provided, air flow 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

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Embodiment Construction

[0042] 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.

[0043] (1) Cross-flow fan in the indoor unit

[0044] 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.

[0045] The indoor heat exchanger 4 is configured by connecting a front side ...

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Abstract

To reduce flow path loss caused by an intermediate plate or the like without reducing the strength of a cross-flow fan. Plural blades (40) extend in a lengthwise direction from a disc-shaped or circular annular support plate. A ring portion (61) of an auxiliary ring (60) is positioned on a lengthwise direction intermediate section of the plural blades (40) and is disposed on the outside of outer ends (40a) of the plural blades (40). Plural connection portions (62) of the auxiliary ring (60) extend from the ring portion (61) as far as spaces between adjacent blades of the plural blades (40) and are joined to the blades (40) in the spaces between adjacent blades.

Description

[0001] This application is based on Article 42 of the Detailed Rules for the Implementation of the Patent Law, and is a divisional application of the invention patent application "cross-flow fan" with the filing date of August 29, 2013 and the application number of 201380045921.3. technical field [0002] The present invention relates to a cross-flow fan, particularly a cross-flow fan having resin-made blades. Background technique [0003] 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. . [0004] Summary of the invention [0005]...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F04D17/04F04D29/28
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