CN101140087A - Ventilator, outdoor machine of air conditioner - Google Patents

Ventilator, outdoor machine of air conditioner Download PDF

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Publication number
CN101140087A
CN101140087A CNA200710148860XA CN200710148860A CN101140087A CN 101140087 A CN101140087 A CN 101140087A CN A200710148860X A CNA200710148860X A CN A200710148860XA CN 200710148860 A CN200710148860 A CN 200710148860A CN 101140087 A CN101140087 A CN 101140087A
Authority
CN
China
Prior art keywords
air
impeller
supply arrangement
upstream
inlet cannula
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
CNA200710148860XA
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Chinese (zh)
Inventor
清水知史
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.)
Toshiba Carrier Corp
Original Assignee
Toshiba Carrier Corp
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
Priority to JP2006240562 priority Critical
Priority to JP2006240562A priority patent/JP2008064350A/en
Application filed by Toshiba Carrier Corp filed Critical Toshiba Carrier Corp
Publication of CN101140087A publication Critical patent/CN101140087A/en
Pending legal-status Critical Current

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Abstract

The present invention relates to an air feeding device and an outdoor machine of air conditioner, the invention is provided with an axial fan and a bell-shaped opening sleeve which is arranged at the circumference of the axial fan, the upstream side of the axial fan and the blade of the impeller at the downstream side are arranged to stagger from each other for a defined angle in the rotation direction, the impeller at the upstream side and the impeller at the downstream side coincide with the bell-shaped opening sleeve in the radius direction, and the impeller at the upstream side is arranged that 10 to 30 percent of the wing height dimension of the impeller coincides with the bell-shaped opening sleeve. The air feeding device of the invention can supply more air quantity with limited dimension and lower noise.

Description

The off-premises station of air-supply arrangement, air conditioner
Technical field
The present invention relates to air-supply arrangement and use the off-premises station of its air conditioner, relate in particular to the air-supply arrangement after bell inlet cannula improved and use the off-premises station of its air conditioner.
Background technology
Generally, the air-supply arrangement of the off-premises station of air conditioner etc. uses aerofoil fan mostly, and this aerofoil fan is oppositely arranged with its air blow-off outlet in the off-premises station basket.
As this aerofoil fan, the Japan Patent spy opens 2006-152988 communique (below be called patent documentation 1) and has disclosed a kind of like this structure: have a plurality of impellers, these a plurality of impellers are arranged and are located at along on the fore-and-aft direction of circulation of air direction, and the relation that the mutual blade of the impeller of front and back staggers with predetermined angular in direction of rotation is arranged and is provided with, obtain the increase of air quantity, the reduction of noise, in addition, center on two impellers by the bell inlet cannula that is installed in blow-off outlet, suppress the eddy current that impeller is taken place on every side, generate blow out air stream stably.
But, in patent documentation 1, do not consider the position relation of bell inlet cannula and impeller, so be desirable to provide the limited volume of a kind of usefulness can be supplied with more windy amount with lower noise air-supply arrangement.
Summary of the invention
The present invention considers above-mentioned situation and makes that its purpose is, provides the limited volume of a kind of usefulness can supply with the air-supply arrangement of more windy amount with low noise.
Purpose is in addition, and a kind of off-premises station of air conditioner of supplying with the air-supply arrangement of more windy amount with finite volume with low noise more that used is provided.
For achieving the above object, air-supply arrangement of the present invention, comprise aerofoil fan and the bell inlet cannula on every side that is located at this aerofoil fan, a plurality of impellers of described aerofoil fan are arranged mutually and are located at axially, on the promptly consistent fore-and-aft direction with the circulation of air direction, and the mutual blade of the impeller of front and back is arranged the stagger relation of predetermined angular of direction of rotation that is arranged in, it is characterized in that, the impeller that is positioned at the described impeller of upstream side and is positioned at the downstream overlaps with described bell inlet cannula respectively at radial direction, and the described impeller that is positioned at upstream side is arranged to 10~30% of the high size of its wing and is overlapped with described bell inlet cannula.
In addition, the feature of the off-premises station of air conditioner of the present invention is to have above-mentioned air-supply arrangement.
Adopt air-supply arrangement of the present invention, can provide the limited volume of a kind of usefulness can supply with the air-supply arrangement of more windy amount with low noise more.
In addition, adopt the off-premises station of air conditioner of the present invention, a kind of off-premises station of air conditioner that can supply with the air-supply arrangement of more windy amount with limited volume with low noise more that used can be provided.
Description of drawings
Fig. 1 is the vertical view of the air-supply arrangement of the present invention the 1st embodiment.
Fig. 2 is the side view of the air-supply arrangement of the present invention the 1st embodiment.
Fig. 3 is the side view of the air-supply arrangement of the present invention the 2nd embodiment.
Fig. 4 is the side view of the air-supply arrangement of the present invention the 3rd embodiment.
Fig. 5 is the side view of the air-supply arrangement of the present invention the 4th embodiment.
Fig. 6 is the roughly diagrammatic sketch of the off-premises station of air conditioner of the present invention.
Fig. 7 be air-supply arrangement r1/h1 of the present invention than with the correlogram of noise.
The specific embodiment
Air-supply arrangement referring now to description of drawings the present invention the 1st embodiment.
Fig. 1 is the vertical view of the air-supply arrangement of the 1st embodiment of the present invention, and Fig. 2 is its side view.
As shown in Figures 1 and 2, the air-supply arrangement 1 of this 1st embodiment comprises aerofoil fan 2, is located at this aerofoil fan bell inlet cannula 3 on every side.
Aerofoil fan 2 be rotating shaft (not shown) upper edge fore-and-aft direction arrange be provided with many groups for example 2 impellers 5,6 and along with their rotation to the multiple form of axial air-supply.Be positioned at 2 blades of impeller 5 of upstream side of circulation of air direction and 2 blades of impeller 6 of being positioned at the downstream respectively with the configuration of about 180 ° spacing.In addition, the impeller 6 that is positioned at the downstream is arranged on mutually with respect to the impeller 5 of the upstream side that is positioned at the circulation of air direction and is axially staggering s1 for example on the position of 10mm, in addition, these blades are in the direction of rotation predetermined angular setting of staggering, with stagger 25 °~85 ° for good, preferably stagger 55 ° (forward) be provided with.In the present embodiment, 2 impellers 5,6 have an incorporate wheel hub 4 that is used to be installed on the rotating shaft, the also other member of wheel hub self.
Owing to impeller 5,6 is located at the position of staggering vertically mutually, and these blades is set with staggering predetermined angular, so the blade of the blade of impeller 5 and impeller 6 can not be subjected to the blade of the other side's impeller to give full play to separately ability with influencing in direction of rotation.Thus, under the state of the relation of keeping best impeller clearance and blade area, can enlarge whole blade area, and can with the interlobate interference of front and back impeller for example the turbulent flow that produced of the trailing edge portion of impeller 6 the blade influence of impeller 5 is suppressed to Min., in addition, owing to fan diameter need not be enlarged and just can enlarge the integral blade area, reduce the effect that rotating speed also can obtain institute's required airflow so have.In other words, by in direction of rotation with the leaf position of the two impellers predetermined angular that staggers, thereby can increase the generation air quantity.
Total incorporate wheel hubs 4 of impeller 5,6, but can be formed separately upstream side unit and unit, downstream for the wheel hub with short axial length by described two wheel hubs being fixed and two impellers 5,6 are integrated, thereby can form this aerofoil fan easily.
In addition, impeller 5 and impeller 6 see from the side with bell inlet cannula 3 at radial direction and overlap, and 10~30% of the blade height size of impeller 5 overlaps with bell inlet cannula 3.That is, the value that overlaps height dimension r1 and the ratio r1/h1 of the blade height size h1 of impeller 5 of impeller 5 and bell inlet cannula 3 is located at 0.1~0.3.
Bell inlet cannula 3 is used for for example off-premises station of air conditioner, and central portion is flat cylindric, and end, suction side 3a is curve form.
R1/h1 when Fig. 7 represents that air output made 1800l/h than with the relation of noise.From Fig. 7, learn, the value of r1/h1 ratio is located at 0.1~0.3 scope, thereby can reduces noise significantly.That is, utilize bell inlet cannula 3 to suppress the eddy current that takes place around the aerofoil fan 2, form stably that blow out air stream increases air quantity, can suppress noise.
Adopt the air-supply arrangement of this 1st embodiment, utilization be positioned at the impeller of upstream side and the impeller that is positioned at the downstream axial dislocation, two impellers interlobate direction of rotation dislocation and will be positioned at 10~30% comprehensive functions that overlap with bell inlet cannula of blade height size of the impeller of upstream side, can realize can supplying with low noise more the air-supply arrangement of more windy amount with limited volume.
The air-supply arrangement of the present invention the 2nd embodiment now is described.
Form flat cylindricly with respect to the central portion with bell inlet cannula of the 1st embodiment, this 2nd embodiment forms long cylinder with the side that blows out of bell inlet cannula.
For example, as shown in Figure 3, the air-supply arrangement 1A of the 2nd embodiment, the suction side of its bell inlet cannula 3A and blow out side and form long cylinder 3A1,3A2.
In this occasion, also the value of r1/h1 is located at 0.1~0.3 scope, utilize bell inlet cannula 3A to suppress the eddy current that takes place around the aerofoil fan 2 thus, form blow out air stream stably, air quantity is increased, and can suppress noise.
Other structure is identical with air-supply arrangement shown in Figure 2, omits explanation so put on same-sign.
The air-supply arrangement of the present invention the 3rd embodiment now is described.
Form flat cylindricly with respect to the central portion with bell inlet cannula of the 1st embodiment, the diameter of the bell inlet cannula of this 3rd embodiment and the impeller intersection that is positioned at upstream side becomes the earth gradually to the upstream side of circulation of air direction and forms.
For example, as shown in Figure 4, the air-supply arrangement 1B of the 3rd embodiment, the upstream side that the diameter D with impeller 5 intersection that be positioned at upstream side bell inlet cannula 3B forms to the circulation of air direction becomes greatly gradually, and is end, suction side 3a and makes the flat cylindric of R shape.
Thus, as shown in Figure 7, under identical air quantity, noise is compared with the 1st embodiment can further reduce by 0.5~1dBA.
Below, the air-supply arrangement of the present invention the 4th embodiment is described.
Become big situation flat cylindraceous gradually with respect to the upstream side of among the 3rd embodiment diameter with the impeller intersection that is positioned at upstream side of bell inlet cannula being made to the circulation of air direction, this 4th embodiment is with the suction side of bell inlet cannula and blows out side and form long cylinder.
For example, as shown in Figure 5, the air-supply arrangement 1C of the 4th embodiment, the diameter D of bell inlet cannula 3C and impeller 5 intersection that be positioned at upstream side forms to such an extent that become big gradually and forms tapering 3C3 to the upstream side of circulation of air direction, again with the suction side and blow out side and form long cylinder 3C1,3C2.In this occasion, also can obtain same effect with aforementioned the 3rd embodiment.
Off-premises station referring now to description of drawings air conditioner of the present invention.
As shown in Figure 6, the off-premises station 11 of air conditioner of the present invention is that the air-supply arrangement 1 of above-mentioned the 1st embodiment off-premises station basket 12 of packing into is used, in off-premises station basket 12, except air-supply arrangement 1, also accommodate outdoor air-supply arrangement that this air-supply arrangement 1 is rotated driving with motor 13, compressor 14, outdoor heat converter 15, converter circuit 16 etc., and have seal valve (packed valve) 17.
Above-mentioned in the air-supply arrangement 1 is 0.1~0.3 scope than r1/h1, utilize bell inlet cannula 3 to suppress the eddy current that takes place around the aerofoil fan 2, form blow out air stream stably, air quantity is increased, can suppress noise, realize with limited volume with the off-premises station of the air conditioner of the more windy amount of low noise supply more.

Claims (3)

1. air-supply arrangement, comprise aerofoil fan and the bell inlet cannula on every side that is located at this aerofoil fan, a plurality of impellers with multi-disc blade of radial extension of described aerofoil fan are arranged and are arranged on the fore-and-aft direction consistent with the circulation of air direction, and the mutual blade of the impeller of front and back is arranged the relation that is arranged in the predetermined angular that staggers on the direction of rotation, it is characterized in that
Described a plurality of impeller overlaps with described bell inlet cannula at radial direction, and the described impeller that is positioned at upstream side is arranged to 10~30% of the high size of its wing and is overlapped with described bell inlet cannula.
2. air-supply arrangement as claimed in claim 1 is characterized in that, described bell inlet cannula is extended along with the upstream side towards the circulation of air direction with the impeller superposed part that is positioned at upstream side and enlarged diameter gradually.
3. the off-premises station of an air conditioner is characterized in that, has each described air-supply arrangement in the claim 1,2.
CNA200710148860XA 2006-09-05 2007-09-04 Ventilator, outdoor machine of air conditioner Pending CN101140087A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP2006240562 2006-09-05
JP2006240562A JP2008064350A (en) 2006-09-05 2006-09-05 Air blower and outdoor unit of air conditioner

Publications (1)

Publication Number Publication Date
CN101140087A true CN101140087A (en) 2008-03-12

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
CNA200710148860XA Pending CN101140087A (en) 2006-09-05 2007-09-04 Ventilator, outdoor machine of air conditioner

Country Status (3)

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JP (1) JP2008064350A (en)
CN (1) CN101140087A (en)
IT (1) ITRM20070453A1 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108506246A (en) * 2018-05-04 2018-09-07 广东美的制冷设备有限公司 Axial-flow windwheel, air-conditioner outdoor unit and air conditioner
CN108716473A (en) * 2018-03-02 2018-10-30 青岛海信日立空调系统有限公司 A kind of aerofoil fan and air-conditioner outdoor unit
WO2019210591A1 (en) * 2018-05-04 2019-11-07 广东美的制冷设备有限公司 Axial flow wind wheel, air conditioner outdoor unit and air conditioner

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101427270B1 (en) 2008-01-09 2014-08-06 엘지전자 주식회사 Fan module for refrigerator
JP2013096622A (en) * 2011-10-31 2013-05-20 Daikin Industries Ltd Outdoor unit of air conditioner
JP2014081147A (en) * 2012-10-17 2014-05-08 Hitachi Appliances Inc Outdoor unit of air conditioner

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02149897U (en) * 1989-05-24 1990-12-21
JP4662438B2 (en) * 2004-12-01 2011-03-30 東芝キヤリア株式会社 Axial fan, outdoor unit of air conditioner

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108716473A (en) * 2018-03-02 2018-10-30 青岛海信日立空调系统有限公司 A kind of aerofoil fan and air-conditioner outdoor unit
CN108506246A (en) * 2018-05-04 2018-09-07 广东美的制冷设备有限公司 Axial-flow windwheel, air-conditioner outdoor unit and air conditioner
WO2019210591A1 (en) * 2018-05-04 2019-11-07 广东美的制冷设备有限公司 Axial flow wind wheel, air conditioner outdoor unit and air conditioner

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Publication number Publication date
JP2008064350A (en) 2008-03-21
ITRM20070453A1 (en) 2008-03-06

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