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Centrifugal blower and air conditioner using the same

A centrifugal fan and blower technology, applied in the direction of air conditioning systems, machines/engines, pumping devices for elastic fluids, etc., can solve the problems of reducing fan efficiency, noise, etc., to reduce noise, shorten length, and structure simplified effect

Inactive Publication Date: 2015-01-14
LG ELECTRONICS INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, such vents can cause friction with the air being drawn into the unit, which can create noise and reduce the efficiency of the fan

Method used

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  • Centrifugal blower and air conditioner using the same
  • Centrifugal blower and air conditioner using the same
  • Centrifugal blower and air conditioner using the same

Examples

Experimental program
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Embodiment Construction

[0042] Embodiments will be described more fully hereinafter with reference to the accompanying drawings. The embodiments should not be construed as limited to exemplary embodiments as broadly described herein. Rather, these exemplary embodiments are provided for sufficiency and completeness (of the disclosure), so as to convey the scope to those skilled in the art. In the drawings, the thickness of layers, films, regions, may be exaggerated for clarity. Wherever possible, like reference numbers will refer to like elements.

[0043] In addition, spatially relative terms such as "below", "below", "lower", "upper", "upper" and similar terms may be used herein for ease of description to describe the relative position of an element or feature. The relationship of another element or feature as described in the drawing. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use and operation in addition to the orie...

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PUM

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Abstract

A centrifugal blower for an air conditioner may include a centrifugal fan rotatably coupled to a motor, and a bell mouth guiding air into the centrifugal fan. The centrifugal fan may include a hub fixed to a rotary shaft of the motor, a main plate provided at an outer circumferential surface of the hub, a shroud having a suction opening surrounding the rotary shaft, the shroud positioned opposite the main plate to define a main gas flow path, and a plurality of wings arranged along the circumferential direction of the suction opening between the main plate and the shroud. A rear axial end portion of the bell mouth may be inserted into the shroud through the suction opening so as to form a predetermined radial gap with the suction opening. The rear portion of the bell mouth may include a plurality of alternately formed protruding portions and recessed portions, with the protruding portions and the recessed portions inserted into the shroud.

Description

[0001] Cross References to Related Art [0002] This application claims priority from Patent Application No. 10-2013-0082135 filed in Korea on Jul. 12, 2013, the entire contents of which are hereby incorporated by reference into this application. technical field [0003] The present invention relates to centrifugal blowers, and more particularly to centrifugal blowers with reduced noise and increased efficiency. Background technique [0004] Air conditioners provide cooling or heating to a space using a refrigeration cycle that includes a compressor, an outdoor heat exchanger, an expansion valve, and an indoor heat exchanger. Such an air conditioner may function as a cooler for cooling a space, or as a heater for heating a space, or as an air conditioner for cooling and heating a space. [0005] The air conditioner may include: an indoor unit installed, for example, at the top of an indoor space to be heated / cooled to deliver heated / cooled air into the indoor space; an outd...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F04D29/66F04D29/44F04D25/08F24F13/10F24F1/0071
CPCF24F2001/0037F24F1/0022F24F1/0007F24F1/0047F04D25/08F04D29/441F04D29/663F24F1/0071F24F1/00F04D29/44F04D29/66F24F13/24F04D25/088F04D25/12F04D29/4213F04D29/4226F04D17/16F04D25/082F04D17/10F24F7/007
Inventor 崔宇周郑春勉任东均梁太万
Owner LG ELECTRONICS INC
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