Transverse-flow fan and air conditioner using same

A cross-flow fan, air conditioner technology, applied in the direction of air conditioning systems, components of pumping devices for elastic fluids, applications, etc., can solve problems such as bad noise characteristics

Inactive Publication Date: 2003-11-12
LG ELECTRONICS INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0017] Therefore, the prior art equal pitch cross flow fan 10 has poor noise

Method used

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  • Transverse-flow fan and air conditioner using same
  • Transverse-flow fan and air conditioner using same
  • Transverse-flow fan and air conditioner using same

Examples

Experimental program
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Embodiment Construction

[0043] Reference is now made to the preferred embodiments of the invention, examples of which are illustrated in the accompanying drawings. In the description of the embodiments of the present invention, the same components are marked with the same names and symbols, and repeated descriptions will be omitted.

[0044] Referring to FIG. 5 , the cross-flow fan 20 of the present invention includes a plurality of rims 23 equidistantly arranged in the horizontal direction, and a plurality of blades 22 perpendicular to the sides of the rim and along the circumferential direction of the rim 23 on the sides of the rim 23 .

[0045] The blades 22 are arranged such that the pitch angle Pn between adjacent two blades is irregular when the center of the rim 23 is taken as the apex.

[0046] When viewed from one side, the blade 22 is inclined in a clockwise or counterclockwise direction.

[0047] The foregoing cross-flow fan of the present invention is designed as an unequal-pitch cross-...

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PUM

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Abstract

Cross flow fan, and air conditioner fitted with the same, the cross flow fan including a plurality of annular rims arranged at regular intervals along a horizontal direction, and a plurality of blades on a side surface of the rim vertical thereto, and along a circumference direction of the rim, wherein pitch angles between two adjacent blades are not regular, the pitch angle taking a center of the rim as an apex, and a number of blades are 32 or 35. The pitch angles of the blades are designed by a computer optimization method taking a number of the blades and the like as parameters.

Description

technical field [0001] The invention relates to a cross flow fan, especially a cross flow fan with different pitches, and an air conditioner equipped with the fan. Background technique [0002] Generally, an air conditioner is provided with an indoor unit and an outdoor unit, and the indoor unit is provided with an evaporator and a fan therein. The fan is used to draw air from the room, make the air exchange heat in the evaporator, and then blow the air into the room. [0003] Among the fans used in air conditioners, there are squirrel-cage fans, axial fans, turbo fans and cross-flow fans, and most indoor units use cross-flow fans. [0004] The prior art cross-flow fan in the air conditioner will be described below in conjunction with the accompanying drawings. [0005] Referring to FIG. 1 , the air conditioner is provided with a housing with an inlet 4 and an outlet 5 , an evaporator 1 , a rear guide 2 , a cross flow fan 10 and a stabilizer 3 . [0006] The cross flow fa...

Claims

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Application Information

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IPC IPC(8): F04D17/04F01D5/14F01D5/16F04D29/28F04D29/34F04D29/66F24F1/00
CPCF04D29/283F01D5/14F04D29/666F01D5/16F05D2260/96F04D17/04F04D29/34
Inventor 安哲吾陈深元李昌宣郑文基尹仁喆文栋洙郑寅和
Owner LG ELECTRONICS INC
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