KR960023830A - Centrifugal blower - Google Patents

Centrifugal blower Download PDF

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Publication number
KR960023830A
KR960023830A KR1019950025813A KR19950025813A KR960023830A KR 960023830 A KR960023830 A KR 960023830A KR 1019950025813 A KR1019950025813 A KR 1019950025813A KR 19950025813 A KR19950025813 A KR 19950025813A KR 960023830 A KR960023830 A KR 960023830A
Authority
KR
South Korea
Prior art keywords
casing
centrifugal
axial direction
wheel
centrifugal blower
Prior art date
Application number
KR1019950025813A
Other languages
Korean (ko)
Inventor
아츠히코 오노
기요미 니와
야스마사 하야시
Original Assignee
사토 후미오
가부시키가이샤 도시바
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 사토 후미오, 가부시키가이샤 도시바 filed Critical 사토 후미오
Publication of KR960023830A publication Critical patent/KR960023830A/en
Priority to KR2019980016176U priority Critical patent/KR0140183Y1/en

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D17/00—Radial-flow pumps, e.g. centrifugal pumps; Helico-centrifugal pumps
    • F04D17/08—Centrifugal pumps

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)

Abstract

본 발명은 구조를 대형화하지 않고 풍량의 증대, 소음의 감소를 실현하여 가는 덕트를 사용하더라도 풍량의 저하, 소음의 증대를 초래하지 않도록 케이싱을 개량한 원심송풍기에 관한 것으로서, 케이싱(17)을 원심날개바퀴의 단면이 축방향으로 긴 타원형이며, 그 축방향의 폭(B)이 노즈부(19)로부터 원심날개바퀴(13)의 회전방향(R)을 향하여 점차 커지고, 그 최대폭(Bmax) 부분이 배출구까지의 사이에 존재하도록 형성하므로써 케이싱(17)의 축방향의 팽창율을 크게 하여 케이싱(17)의 실질적인 팽창율을 확보할 수 있도록 하며, 또한 단면이 축방향으로 긴 타원형인 케이싱(17)은 종래의 단면이 직사각형상인 케이싱의 모퉁이에서 발생하는 이차 흐름, 즉 소용돌이류 등을 제거할 수 있는 것을 특징으로 한다.The present invention relates to a centrifugal blower in which a casing is improved so as not to cause a decrease in air volume and an increase in noise even when using a duct that realizes an increase in air volume and a reduction in noise without increasing the size of the structure. The cross section of the blade wheel is elliptical long in the axial direction, and the width B in the axial direction thereof gradually increases from the nose portion 19 toward the rotation direction R of the centrifugal blade wheel 13, and its maximum width Bmax portion. By forming it so as to exist between the outlets, the expansion ratio in the axial direction of the casing 17 can be increased to ensure a substantial expansion ratio of the casing 17, and the casing 17 having an axially long cross section is provided. It is characterized in that the secondary flow, i.e., the vortices, generated at the corners of the casing of the conventional cross section can be removed.

Description

원심송풍기Centrifugal blower

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is an open matter, no full text was included.

제1도는 본 발명의 제1실시예를 도시하는 제2도의 Ⅰ-Ⅰ선을 따르는 단면전개도, 제2도는 본 발명의 제1실시예에 따른 원심송풍기의 종단면도, 제3도는 본 발명의 제1실시예에 따른 원심송풍기의 횡단면도, 제4도는 본 발명의 제1실시예에 따른 원심송풍기의 정면도, 제6도는 본 발명에 따른 원심송풍기의 케이싱부의 부분종단면도, 제7도는 원심날개바퀴의 부분확대단면도, 제18도는 본 발명의 제2실시예를 도시한 제1도 상당도, 제22도는 본 발명의 제3실시예를 도시하는 측면도.1 is a cross-sectional development view along the line I-I of FIG. 2 showing a first embodiment of the present invention, FIG. 2 is a longitudinal sectional view of a centrifugal blower according to the first embodiment of the present invention, and FIG. 4 is a front view of a centrifugal blower according to the first embodiment of the present invention, FIG. 6 is a partial longitudinal sectional view of the casing portion of the centrifugal blower according to the present invention, and FIG. Fig. 18 is a partial enlarged cross sectional view of Fig. 18, which corresponds to Fig. 1 showing a second embodiment of the present invention, and Fig. 22 is a side view showing a third embodiment of the present invention.

Claims (5)

회전함으로써 축방향으로부터 공기를 흡입하여 둘레방향으로 토출하는 원삼날개바퀴 및 상기 원심날개바퀴에 근접하는 노즈부를 가지며 원심날개바퀴가 토출한 공기를 소용돌이형상의 통풍로를 통하여 배출구로 유도하는 케이싱을 구비하며, 상기 케이싱을 원심날개바퀴의 단면이 축방향으로 긴 타원형이며 그 축방향의 폭이 상기 노즈부로부터 원심날개바퀴의 회전방향을 향하여 점차 확대하고, 그 최대폭 부분이 상기 배출구까지의 사이에 존재하도록 형성한 것을 특징으로 한 원심송풍기.Rotating three-wheeled wheel that sucks air from the axial direction and discharges it in the circumferential direction, and a nose portion proximate to the centrifugal wing wheel, and has a casing for guiding the air discharged by the centrifugal wheel to the outlet through the vortex-shaped ventilation path. And the casing is elliptical in cross section of the centrifugal wing wheel in the axial direction, and its width in the axial direction gradually extends from the nose portion toward the direction of rotation of the centrifugal wing wheel, and the maximum width portion is present between the outlets. Centrifugal blower, characterized in that formed to. 제1항에 있어서, 원심날개바퀴의 축방향 길이를 b, 외부직겨을 d2라 하고, 케이싱의 축방향의 최대폭을 Bmax라 하는 경우 이들의 관계를2. The relationship of claim 1, wherein the axial length of the centrifugal wheel is b, the outer weave is d2, and the maximum width in the axial direction of the casing is Bmax. b/d2=0.45~0.70b / d2 = 0.45 to 0.70 b/Bmax=0.55~0.75b / Bmax = 0.55 to 0.75 로 정한 것을 특징으로 하는 원심송풍기.Centrifugal blower, characterized in that determined by. 제1항에 있어서, 케이싱의 축방향의 최대폭 부분을 노즈부에서부터 원심날개바퀴의 회전방향을 향하여 200~310°의 위치에 형성한 것을 특징으로 하는 원심송풍기.The centrifugal blower according to claim 1, wherein the largest width portion in the axial direction of the casing is formed at a position of 200 to 310 degrees from the nose portion toward the rotation direction of the centrifugal blade wheel. 제1항에 있어서, 케이싱의 축방향 최소폭 부분을 노즈부로부터 원심날개바퀴의 회전방향으로 소정범위 연장하여 형성한 것을 특징으로 하는 원심송풍기.The centrifugal blower according to claim 1, wherein the axial minimum width portion of the casing extends a predetermined range from the nose portion in the rotational direction of the centrifugal blade wheel. 제4항에 있어서, 케이싱의 축방향의 최소폭 부분을 노즈부로부터 45°이하의 범위에 형성한 것을 특징으로 하는 원심송풍기.The centrifugal blower according to claim 4, wherein the minimum width portion in the axial direction of the casing is formed in a range of 45 degrees or less from the nose portion. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019950025813A 1994-12-20 1995-08-19 Centrifugal blower KR960023830A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR2019980016176U KR0140183Y1 (en) 1994-12-20 1998-08-28 Centrifugal blower

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP94-316509 1994-12-20
JP31650994A JP3442885B2 (en) 1994-12-20 1994-12-20 Centrifugal blower

Related Child Applications (1)

Application Number Title Priority Date Filing Date
KR2019980016176U Division KR0140183Y1 (en) 1994-12-20 1998-08-28 Centrifugal blower

Publications (1)

Publication Number Publication Date
KR960023830A true KR960023830A (en) 1996-07-20

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ID=18077904

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019950025813A KR960023830A (en) 1994-12-20 1995-08-19 Centrifugal blower

Country Status (4)

Country Link
JP (1) JP3442885B2 (en)
KR (1) KR960023830A (en)
CN (1) CN1056672C (en)
TW (1) TW272251B (en)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001182692A (en) * 1999-12-28 2001-07-06 Osaka Gas Co Ltd Centrifugal air blower
CN200941495Y (en) 2006-08-18 2007-08-29 富士康(昆山)电脑接插件有限公司 Electrical connector
JP5439423B2 (en) * 2011-03-25 2014-03-12 三菱重工業株式会社 Scroll shape of centrifugal compressor
JP5432295B2 (en) * 2012-01-10 2014-03-05 富士工業株式会社 Belmouth and range hood for blower
CN105332939B (en) * 2014-08-15 2018-04-17 珠海格力电器股份有限公司 Net cover ring and fan with same
CN204553343U (en) * 2014-12-19 2015-08-12 特灵空调系统(中国)有限公司 Flow blower casing
WO2019082392A1 (en) 2017-10-27 2019-05-02 三菱電機株式会社 Centrifugal blower, air blower device, air conditioning device, and refrigeration cycle device
WO2019082391A1 (en) * 2017-10-27 2019-05-02 三菱電機株式会社 Centrifugal blower and blower device
JP7161654B2 (en) * 2018-02-28 2022-10-27 サンデン株式会社 Blower

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6295785B1 (en) * 1999-03-22 2001-10-02 Robert M. Herrmann Geodesic dome and method of constructing same
EP2468343A1 (en) * 2010-12-21 2012-06-27 Sanofi-Aventis Deutschland GmbH Front end for an auto-injector

Also Published As

Publication number Publication date
CN1056672C (en) 2000-09-20
JPH08177795A (en) 1996-07-12
TW272251B (en) 1996-03-11
CN1129777A (en) 1996-08-28
JP3442885B2 (en) 2003-09-02

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E902 Notification of reason for refusal
E601 Decision to refuse application
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