Outdoor unit for air conditioner

A technology for outdoor units and air conditioners, which is applied in air conditioning systems, mechanical equipment, machines/engines, etc. It can solve the problems of blower noise increase and eddy current generation, and achieve the effect of suppressing eddy current and reducing noise

Active Publication Date: 2006-05-03
TOSHIBA CARRIER CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] However, in the conventional axial flow fan, since the contour line of the rear edge of the blade is located in the air introduction direction from the side peripheral end of the air inflow surface of the bell mouth, the flow out from the rear edge of the blade The air will collide with the outer peripheral end of the air inflow surface of the bell mouth, thus, a vortex will be generated, and thus, the noise of the blower will increase

Method used

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  • Outdoor unit for air conditioner
  • Outdoor unit for air conditioner
  • Outdoor unit for air conditioner

Examples

Experimental program
Comparison scheme
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Embodiment Construction

[0022] Below, see Figures 1 to 8 Embodiments according to the present invention are described.

[0023] figure 1 It is a cross-sectional view of the outdoor unit 1 of the air conditioner.

[0024] The outdoor unit 1 is used in a state connected to an indoor unit (not shown), and consists of a bottom plate 2 arranged on the outdoor ground, later-mentioned structural members or parts arranged on the bottom plate 2, a discharge port 4 and a main body cover 3 having a fan cover 5 and covering the structure and the bottom plate 2, wherein the fan cover 5 covers the discharge opening 4.

[0025] The outdoor unit 1 is provided with a compressor 6 , a refrigeration cycle, a blower 8 and a bell mouth 9 , wherein the compressor 6 circulates the refrigerant in the refrigeration cycle including an outdoor heat exchanger 7 , in the outdoor heat exchanger 7, plate-shaped heat radiation fins are stacked at predetermined intervals in one heat exchange pipe through which the coolant flows,...

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PUM

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Abstract

The invention discloses an outdoor unit of an air conditioner, which has an axial flow fan and a bell mouth. The axial fan is configured by arranging blades at predetermined intervals along the outer circumference of a hub, each of which is formed such that a contour line of a rear edge portion thereof with respect to a rotation direction is recessed toward a front edge thereof. The bell mouth is arranged on the blowing side of the axial flow fan. An axial blower is provided in the outdoor unit. The bell mouth and the axial fan are arranged in the axial blower such that the ratio X / L is in the range of 0.2 to 0.8, where X is the point on the contour line of the trailing edge of the blade. The distance between the most inwardly recessed part in the direction of rotation and the air outflow surface of the bell mouth, L is the axial length of the bell mouth.

Description

technical field [0001] The invention relates to an outdoor unit of an air conditioner, in particular to an outdoor unit equipped with an axial flow blower capable of suppressing the noise of the blower. Background technique [0002] In the conventional art, an outdoor unit of an air conditioner is constructed such that a bell mouth is connected to a discharge port, and an axial flow blower is arranged in the bell mouth along the air inflow direction, and the axial flow blower has a multi- An axial fan with two blades arranged at predetermined intervals along the outer peripheral surface of a rotating hub. [0003] In the axial flow fan of the above outdoor unit, when air is blown in the axial direction by the rotation of the axial flow fan, the front edge portion of the blade corresponds to the air introduction direction, and the rear edge of the blade corresponds to the air introduction direction. The edge portion corresponds to the air outflow direction. [0004] In rece...

Claims

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Application Information

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IPC IPC(8): F24F5/00F04D19/00F04D29/38F24F1/38F24F1/40
CPCF04D19/002F04D29/384F24F1/38F24F1/40F04D29/38
Inventor 石岛满义竹内章洋
Owner TOSHIBA CARRIER CORP
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