CN200943602Y - 柜式空调器离心风扇 - Google Patents

柜式空调器离心风扇 Download PDF

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Publication number
CN200943602Y
CN200943602Y CN 200620087740 CN200620087740U CN200943602Y CN 200943602 Y CN200943602 Y CN 200943602Y CN 200620087740 CN200620087740 CN 200620087740 CN 200620087740 U CN200620087740 U CN 200620087740U CN 200943602 Y CN200943602 Y CN 200943602Y
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China
Prior art keywords
utility
air conditioner
model
fan
blade
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Expired - Fee Related
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CN 200620087740
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English (en)
Inventor
庞峰
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Hisense Shandong Air Conditioning Co Ltd
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HAISENSE AIR CONDITIONER CO Ltd QINGDAO
Hisense Group Co Ltd
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Priority to CN 200620087740 priority Critical patent/CN200943602Y/zh
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Publication of CN200943602Y publication Critical patent/CN200943602Y/zh
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  • Air-Conditioning Room Units, And Self-Contained Units In General (AREA)

Abstract

本实用新型涉及柜式空调器离心风扇，是为了解决现有技术存在的离心风扇噪声较大这一技术问题。为了实现上述目的，本实用新型柜式空调器离心风扇包括风扇叶片，其特征在于：所述风扇叶片内侧边上设有锯形齿。由于本实用新型采用了上述结构，离心风扇叶片内侧边采用了锯齿结构，使得叶片表面层流转换成了紊流，避免了共振放大T－S波的产生，有效地降低了风扇噪声。本实用新型制作简单、成本低，降噪效果好。

Description

柜式空调器离心风扇
技术领域
本实用新型涉及空调器，具体地说是对现有柜式空调器室外机离心风扇的一种改进。
背景技术
随着生活水平的不断提高，柜式空调器已越来越普及。消费者对其质量、性能要求也越来越高。目前，柜式空调器室外机普遍存在噪声较大，该噪声主要是由电机噪声和风机噪声组成。由于柜式空调器室外机一般采用离心风扇进行强制对流换热，风机噪声是由离心风扇产生的，风机噪声与叶轮在空气流动中产生的涡流密切相关，当叶轮尾缘处尾涡脱落产生的声波与叶片表面接近二维的T-S波的频率满足某种关系时，就会形成反馈回路并发生共振放大T-S波，将尾涡脱落频率锁定，在频谱上形成一个比较尖的高峰，形成较大的风扇叶片表面涡流脱落噪声。当满足以下条件时会形成反馈回路造成层流边界层噪声：1、流场波动区位于声源辐射点的上游位置；2、声源辐射点在叶片尾迹线上；3、产生声源的流体波动在物体的流体边界层表面；4、边界层表面在反馈路径的整个表面上保持层流不被破化。因此，为了防止形成反馈回路造成层流边界层噪声，需要对离心风扇结构进行一些改进。
发明内容
本实用新型的目的是为了解决现有技术存在的离心风扇噪声较大这一技术问题，而提供的一种风扇噪声较小的柜式空调器离心风扇。
为了实现上述目的，本实用新型柜式空调器离心风扇包括风扇叶片，其特征在于：所述风扇叶片内侧边上设有锯形齿。
为了达到更好的降噪效果，在本实用新型进一步的细节结构中，还具有以下技术特征：所述锯形齿均匀设置。
本实用新型具有以下优点和积极效果：由于本实用新型采用了上述结构，离心风扇叶片内侧边采用了锯齿结构，使得叶片表面层流转换成了紊流，避免了共振放大T-S波的产生，有效地降低了风扇噪声。本实用新型制作简单、成本低，降噪效果好。
附图说明
下面结合附图和实施例对本实用新型作进一步描述。
图1本实用新型离心风扇主视图；
图2本实用新型离心风扇叶片示意图。
1、离心风扇；2、风扇叶片；3、锯形齿；4、叶片内侧边。
具体实施方式
参见图1，本实用新型柜式空调器离心风扇包括风扇叶片2，在风扇叶片2的内侧边4上设有锯形齿3，该锯形齿3均匀设置。这样，使得叶片表面层流转换成了紊流，避免了共振放大T-S波的产生，有效地降低了风扇噪声。
当然，上述说明并非是对本实用新型的限制，本实用新型也并不限于上述举例，本技术领域的普通技术人员，在本实用新型的实质范围内，作出的变化、改型、添加或替换，也应属于本实用新型的保护范围。

Claims (2)

1、一种柜式空调器离心风扇，其包括风扇叶片，其特征在于：所述风扇叶片内侧边上设有锯形齿。
2、根据权利要求1所述的柜式空调器离心风扇，其特征在于：所述锯形齿均匀设置。
CN 200620087740 2006-08-07 2006-08-07 柜式空调器离心风扇 Expired - Fee Related CN200943602Y (zh)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 200620087740 CN200943602Y (zh) 2006-08-07 2006-08-07 柜式空调器离心风扇

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 200620087740 CN200943602Y (zh) 2006-08-07 2006-08-07 柜式空调器离心风扇

Publications (1)

Publication Number Publication Date
CN200943602Y true CN200943602Y (zh) 2007-09-05

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CN 200620087740 Expired - Fee Related CN200943602Y (zh) 2006-08-07 2006-08-07 柜式空调器离心风扇

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CN (1) CN200943602Y (zh)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102374192A (zh) * 2010-08-17 2012-03-14 日本电产伺服有限公司 风扇
WO2018107883A1 (zh) * 2016-12-16 2018-06-21 珠海格力电器股份有限公司 离心风叶及离心风机

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102374192A (zh) * 2010-08-17 2012-03-14 日本电产伺服有限公司 风扇
CN102374192B (zh) * 2010-08-17 2014-12-17 日本电产伺服有限公司 风扇
WO2018107883A1 (zh) * 2016-12-16 2018-06-21 珠海格力电器股份有限公司 离心风叶及离心风机
US11204040B2 (en) 2016-12-16 2021-12-21 Gree Electric Appliances, Inc. Of Zhuhai Centrifugal fan blade assembly and centrifugal fan

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C14 Grant of patent or utility model
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ASS Succession or assignment of patent right

Owner name: QINGDAO HISENSE AIR CONDITIONING CO.

Free format text: FORMER OWNER: HAIXIN GROUP CO., LTD.; PATENTEE

Effective date: 20071012

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Effective date of registration: 20071012

Address after: 266071 Shandong city of Qingdao province Jiangxi City Road No. 11

Patentee after: Haisense Air Conditioner Co., Ltd., Qingdao

Address before: 266071 Shandong city of Qingdao province Jiangxi City Road No. 11

Co-patentee before: Haisense Air Conditioner Co., Ltd., Qingdao

Patentee before: Hisense Group Co., Ltd.

ASS Succession or assignment of patent right

Owner name: HISENSE( SHANDONG ) AIR CONDITIONING CO., LTD.

Free format text: FORMER OWNER: QINGDAO HISENSE AIR CONDITIONING CO.

Effective date: 20080425

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Effective date of registration: 20080425

Address after: Shandong City, Qingdao province Jiangxi City Road 11, zip code: 266071

Patentee after: Hisense (Shandong) Air-Conditioning Co., Ltd.

Address before: Shandong City, Qingdao province Jiangxi City Road 11, zip code: 266071

Patentee before: Haisense Air Conditioner Co., Ltd., Qingdao

CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20070905

Termination date: 20150807

EXPY Termination of patent right or utility model