CN101270763A - Centrifugal blower and air conditioner having the same - Google Patents

Centrifugal blower and air conditioner having the same Download PDF

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Publication number
CN101270763A
CN101270763A CNA2007101391981A CN200710139198A CN101270763A CN 101270763 A CN101270763 A CN 101270763A CN A2007101391981 A CNA2007101391981 A CN A2007101391981A CN 200710139198 A CN200710139198 A CN 200710139198A CN 101270763 A CN101270763 A CN 101270763A
Authority
CN
China
Prior art keywords
fan guard
split point
fan
adjustment part
distributary division
Prior art date
Legal status (The legal status 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 status listed.)
Pending
Application number
CNA2007101391981A
Other languages
Chinese (zh)
Inventor
金荣宰
崔元硕
李在权
金晋伯
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Samsung Electronics Co Ltd
Original Assignee
Samsung Electronics Co Ltd
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 Samsung Electronics Co Ltd filed Critical Samsung Electronics Co Ltd
Publication of CN101270763A publication Critical patent/CN101270763A/en
Pending legal-status Critical Current

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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
    • F04D29/00—Details, component parts, or accessories
    • F04D29/40—Casings; Connections of working fluid
    • F04D29/403—Casings; Connections of working fluid especially adapted for elastic fluid pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/002—Details, component parts, or accessories especially adapted for elastic fluid pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/40—Casings; Connections of working fluid
    • F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
    • F04D29/44—Fluid-guiding means, e.g. diffusers
    • F04D29/441—Fluid-guiding means, e.g. diffusers especially adapted for elastic fluid pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/66—Combating cavitation, whirls, noise, vibration or the like; Balancing
    • F04D29/661—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for elastic fluid pumps
    • F04D29/663—Sound attenuation
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2210/00—Working fluids
    • F05D2210/10—Kind or type
    • F05D2210/12—Kind or type gaseous, i.e. compressible
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S415/00—Rotary kinetic fluid motors or pumps
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S417/00—Pumps

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Air-Conditioning Room Units, And Self-Contained Units In General (AREA)

Abstract

This invention discloses a centrifugal fan capable of reducing air supply noise by easily adjusting separation point position and an air-conditioner with the same. The centrifugal fan includes: a fan cover with an entrance and an exit, internal passage thereof being the separation point diffusion type gradually diffusing close to the exit, and is provided with a separation part for enabling the flow to be separated; a centrifugal fan mounted in the fan cover; separation point adjusting part mounted at the downstream of the separation part that protrudes from the internal surface of the fan cover close to the separation part to form the flow separation point.

Description

Centrifugal fan and have the air conditioner of this blower fan
Technical field
The present invention relates to centrifugal fan and have the air conditioner of this blower fan, relate in particular to the air conditioner that can reduce the centrifugal fan of noise by distributary division (Cut-Off) position of adjusting fan guard and have this blower fan.
Background technique
The disclosed centrifugal fan of Korean Patent communique " 1999-70161 number " comprises centrifugal cutter and is located at fan guard outside the centrifugal cutter in order to guide air-supply.
Fan guard is provided with and is used for flowing into the inlet of air and being located at and entering the mouth outlet on crisscross for the air of discharging the centrifugal cutter air-supply to the centrifugal cutter core.And fan guard has volute (Scroll) the formula diffusion kenel that inner air passageways area enlarges gradually along the air movement direction, and the upstream portion of diffusion kenel is provided with and exports boundary makes air flows that the distributary division of shunting take place.
This centrifugal fan when the spacing of distributary division and centrifugal cutter hour, though air output can increase because pressure field causes the noise rising.On the contrary, if the spacing of distributary division and centrifugal cutter is excessive, then can near eddy generation distributary division, air output also can reduce.Therefore, for this centrifugal fan, keep suitable spacing extremely important between distributary division and the centrifugal cutter.
The fan guard of centrifugal fan is made by modes such as common molding and forming or iron plate moulding.But, if in making the process of centrifugal fan owing to the distributary division of fan guard and the inappropriate noise that takes place of spacing of centrifugal cutter, then need to make again fan guard, this can consume a large amount of expenses and time.Especially, when making fan guard, need redesign be used for making the mould of fan guard and make by injection molding.
Summary of the invention
The present invention proposes in order to solve aforesaid problem, and it is a kind of by being easy to adjust the air conditioner that the split point position reduces the centrifugal fan of air-supply noise and has this blower fan that its purpose is to provide.
To achieve these goals, centrifugal fan provided by the present invention, it is characterized in that comprising: have the fan guard of entrance and exit, this fan guard trends towards this and exports the voluted type diffusion kenel that its inner passage is diffusion gradually, and is provided with the distributary division that is used to make mobile generation shunting; Be arranged on the centrifugal cutter in the described fan guard; Be located at the split point adjustment part in described distributary division downstream, this split point adjustment part is outstanding and form the split point that flows from being positioned near the described distributary division described fan guard internal surface.
And, it is characterized in that described split point adjustment part is outstanding along the direction that intersects with air-flow direction from described fan guard internal surface.
And, it is characterized in that the front end of described split point adjustment part is consistent with the line that is parallel to the prolongation of described fan guard diffusion kenel from described distributary division peripheral position, to be used to adjust split point.
And, air conditioner provided by the present invention, it is characterized in that comprising and be located at the heat exchanger in the main body and be located at the centrifugal fan that being used in the described main body makes air blow by described heat exchanger, wherein said centrifugal fan has: the fan guard with entrance and exit, this fan guard trends towards this and exports the voluted type diffusion kenel that its inner passage is diffusion gradually, and is provided with the distributary division that is used to make mobile generation shunting; Be arranged on the centrifugal cutter in the described fan guard; Be located at the split point adjustment part in described distributary division downstream, this split point adjustment part is outstanding and form the split point that flows from being positioned near the described distributary division described fan guard internal surface.
Description of drawings
Fig. 1 is for using the air conditioner sectional drawing of centrifugal fan provided by the present invention;
Fig. 2 is the sectional drawing along the II-II ' line intercepting of Fig. 1;
Fig. 3 is the enlarged view of A part among Fig. 2.
Main symbol description: 10 is main body, and 11 is heat exchanger, and 30 is centrifugal fan, and 31 is fan guard, and 32 is first inlet, and 33 is second inlet, and 35 is distributary division, and 40 is centrifugal cutter, and 50 is drive motor, and 60 is the split point adjustment part.
Embodiment
Below, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.
Use air conditioner of the present invention as shown in Figure 1, comprise heat exchanger 11 that is located at main body 10 inside upper part and the centrifugal fan 30 that is located at main body 10 lower inside.
Main body 10 has the suction port 12 that is formed on downside back or two sides in order to suck indoor air, the front exhaust port 14 that is respectively formed at the side exhaust port 13 of both sides, top and is formed on the front middle body.The front upper of main body 10 is provided with the top door-plate 15 that is used to open and close front exhaust port 14.Top door-plate 15 is set to along the guide rail that is formed on main body 10 (not shown) lifting, and door-plate 15 back sides in top are provided with and are used for the lowering or hoisting gear 16 of lifting top door-plate 15.
The heat exchanger 11 of main body 10 inside is set to writing board shape and is obliquely installed with the form of separating main body 10 inside upper part spaces, to be used to make air that centrifugal fan 30 upwards sends by carrying out heat exchange.
Centrifugal fan 30 comprises fan guard 31 and is located at the centrifugal cutter 40 of fan guard 31 inside and the drive motor 50 that drives centrifugal cutter 40 as depicted in figs. 1 and 2.Drive motor 50 is fixed in main body 10 inboard aft section, and centrifugal cutter 40 is incorporated into from drive motor 50 to the fan guard 31 inner rotating shafts 51 that prolong.
Fan guard 31 has in order to suck air and is respectively formed at first inlet, 32 and second inlet 33 of front and back, and has the outlet 34 that is formed on top for exhausting air.This is to be drawn into outlet 34 discharges of the air of fan guard 31 inside by top for the action according to centrifugal cutter makes by first and second inlet.
Fan guard 31 has inner passage 38 as shown in Figure 2 along with the voluted type diffusion kenel that spreads gradually near outlet 34 1 sides.That is, Nei Bu aisle spare enlarges gradually along the air movement direction.And fan guard 31 is provided with and exports the boundary of 34 sides and make air flows that the distributary division 35 of shunting take place in the upstream portion of diffusion kenel.Distributary division 35 the most close centrifugal cutter 40 peripheral parts in the fan guard 31.
As shown in Figure 1, centrifugal cutter 40 is promptly can suck the fan of air from both direction from first and second inlet 32,33 of fan guard 31 front and backs.This centrifugal cutter 40 comprises the swivel plate 41 that is incorporated into rotating shaft 51, be fixed in a plurality of first fan wings 42 of swivel plate 41 peripheral part fronts and be fixed in a plurality of second fan wings 43 of swivel plate 41 peripheral part back.First and second fan wing (42,43) is that center annular is arranged with rotating shaft 51.And the first fan wing, 42 ends are connected by first shield 44, and the second fan wing, 43 ends are connected by second shield 45.Centrifugal cutter 40 can be common turbofan or sirocco fan (Sirocco Fan).
This centrifugal fan 30 is when centrifugal cutter 40 during according to the action of drive motor 50 rotation, as shown in Figure 2, can suck air from first and second inlet (32,33) of both sides and the top of blowing exports 34.At this moment, the air of fan guard 31 inside is directed into outlet 34 along the inner passage 38 with the voluted type diffusion as shown in Figure 2.
In addition, this centrifugal fan 30 when the spacing t of distributary division 35 and centrifugal cutter 40 hour, though air output increase, because of the pressure field noise that causes flowing increases; And when distributary division 35 is excessive with the spacing t of centrifugal cutter 40, near meeting eddy generation distributary division 35, air output also can reduce.Therefore, keep suitable spacing t extremely important between distributary division 35 and the centrifugal cutter 40, and the present invention has and need not to change the split point adjustment part 60 that fan guard 31 shapes can change the flow pattern of fan guard 31 inside, thereby near the phenomenons of the noise that takes place the distributary division 35 to flow are minimized.
Split point adjustment part 60 forms new mobile split point as shown in Figures 2 and 3 in the downstream of distributary division 35.As shown in Figure 3, split point adjustment part 60 is the fan guard 31 internal surfaces outstanding writing board shape of side direction in fan guard 31 from distributary division 35 upsides.And its direction intersects with the air-flow direction that is discharged to outlet 34 sides.
The front end 61 of split point adjustment part 60 is consistent with the line 37 that is parallel to fan guard 31 diffusion kenels prolongations from the imagination shunting place 36 (wanting to change the place of distributary division position) that is set in distributary division 35 peripheries.This is for too small and when take place flowing noise, cause substantial flow separation by the front end 61 of split point adjustment part 60 in split point adjustment part 60 is set as the spacing t between distributary division 35 and the centrifugal cutter 40, reduces the noise that flows thus.That is, play substantial distributary division and be used for reducing the noise that flows by the front end 61 that makes split point adjustment part 60.Split point adjustment part 60 changes the flow pattern of fan guard inside, thereby reduces the noise that flows.
If the actual this split point adjustment part 60 that is provided with, then the air major part in fan guard 31 internal flows is flowed to outlet 34 sides by 60 front ends, 61 shuntings of split point adjustment part.Certainly, as shown in Figure 3, portion of air B also can flow to distributary division 35 sides, but this can not produce special influence to the increase of noise.
Split point adjustment part 60 can be finished under the state of fan guard 31 when needs in manufacturing and be adjusted split point and be arranged in the fan guard 31 when reducing to flow noise.That is split point adjustment part 60 is set when, reducing noise when the flow pattern that will change fan guard 31 inside.This split point adjustment part 60 can utilize binder to be attached at fan guard 31 internal surfaces or be fixed in fan guard 31 internal surfaces by connecting fixing bolt.And, when making fan guard 31, can also revise for the 60 pairs of moulds in split point adjustment part carry out part by injection molding, make split point adjustment part 60 and fan guard 31 be shaped to one.
As mentioned above, because split point adjustment part 60 can change the flow pattern of fan guard 31 inside, and the noise that can reduce thus to flow, even so the spacing of the present invention between distributary division 35 and centrifugal cutter 40 also can revise the split point position at an easy rate during by misspecification.
In sum, therefore centrifugal fan provided by the present invention can reduce abnormal sound and air-supply noise owing to can adjust near the distributary division of fan guard inside flow pattern by the split point adjustment part that is arranged on fan guard inside.
And, because the present invention can adjust substantial distributary division position by the split point adjustment part is set in fan guard after the fan guard manufacturing is finished, therefore also can be revised the split point position at an easy rate by the fan guard of misspecification to the spacing between distributary division and the centrifugal cutter.

Claims (6)

1. centrifugal fan comprises: have the fan guard of entrance and exit, this fan guard trends towards this and exports the voluted type diffusion kenel that its inner passage is diffusion gradually, and is provided with to be used to make flow the distributary division of shunting takes place; And be arranged on centrifugal cutter in the described fan guard; It is characterized in that:
Described distributary division downstream is provided with the split point adjustment part, and this split point adjustment part is outstanding and form the split point that flows from being positioned near the described distributary division described fan guard internal surface.
2. centrifugal fan according to claim 1 is characterized in that described split point adjustment part is outstanding along the direction that intersects with air-flow direction from described fan guard internal surface.
3. centrifugal fan according to claim 2 is characterized in that the front end of described split point adjustment part is consistent with the line that is parallel to the prolongation of described fan guard diffusion kenel from described distributary division peripheral position, to be used to adjust split point.
4. an air conditioner comprises main body, is located at the heat exchanger in the described main body and is located at the centrifugal fan that being used in the described main body makes air blow by described heat exchanger, it is characterized in that described centrifugal fan has:
Fan guard with entrance and exit, this fan guard trend towards this and export the voluted type diffusion kenel that its inner passage is diffusion gradually, and are provided with the distributary division that is used to make mobile generation shunting; Be arranged on the centrifugal cutter in the described fan guard; Be located at the split point adjustment part in described distributary division downstream, this split point adjustment part is outstanding and form the split point that flows from being positioned near the described distributary division described fan guard internal surface.
5. air conditioner according to claim 4 is characterized in that described split point adjustment part is outstanding along the direction that intersects with air-flow direction from described fan guard internal surface.
6. air conditioner according to claim 5 is characterized in that the front end of described split point adjustment part is consistent with the line that is parallel to the prolongation of described fan guard diffusion kenel from described distributary division peripheral position, to be used to adjust split point.
CNA2007101391981A 2007-03-21 2007-07-27 Centrifugal blower and air conditioner having the same Pending CN101270763A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR10-2007-0027768 2007-03-21
KR1020070027768A KR100845289B1 (en) 2007-03-21 2007-03-21 Centrifugal blower and air conditioner having the same

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CN101270763A true CN101270763A (en) 2008-09-24

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CN (1) CN101270763A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112439136A (en) * 2019-09-04 2021-03-05 皇家飞利浦有限公司 Face mask
TWI794771B (en) * 2020-10-23 2023-03-01 日商三菱電機股份有限公司 Multi-blade centrifugal blower

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102240314B1 (en) * 2015-02-16 2021-04-14 삼성전자주식회사 Scroll for air conditioner and Air conditioner having the same
US11131320B2 (en) 2019-04-04 2021-09-28 Johnson Controls Technology Company Modular cutoff for a blower housing
US11493056B2 (en) 2019-12-23 2022-11-08 Johnson Controls Tyco IP Holdings LLP Blower housing for blower of HVAC system
KR102280634B1 (en) * 2020-04-21 2021-07-22 주식회사 힘펠 Discharge Structure of Centrifugal fan
CN115076136B (en) * 2022-07-13 2023-04-18 深圳市史迪安电子科技有限公司 Fan capable of blowing air to 360-degree direction simultaneously

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58122394A (en) 1982-01-14 1983-07-21 Kubota Ltd Volute pump
JPS62258197A (en) 1986-05-06 1987-11-10 Matsushita Seiko Co Ltd Centrifugal blower
JPH062699A (en) * 1992-06-18 1994-01-11 Takuma Co Ltd Low noise type blower
US5340275A (en) * 1993-08-02 1994-08-23 Foster Wheeler Energy Corporation Rotary throat cutoff device and method for reducing centrifugal fan noise
US5868551A (en) 1997-05-02 1999-02-09 American Standard Inc. Tangential fan cutoff
KR100556436B1 (en) * 2004-04-14 2006-03-03 엘지전자 주식회사 Indoor unit of packaged air conditioner

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112439136A (en) * 2019-09-04 2021-03-05 皇家飞利浦有限公司 Face mask
TWI794771B (en) * 2020-10-23 2023-03-01 日商三菱電機股份有限公司 Multi-blade centrifugal blower

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Publication number Publication date
KR100845289B1 (en) 2008-07-09

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Open date: 20080924