CN208382403U - Air-conditioner outdoor unit - Google Patents
Air-conditioner outdoor unit Download PDFInfo
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- CN208382403U CN208382403U CN201820956749.7U CN201820956749U CN208382403U CN 208382403 U CN208382403 U CN 208382403U CN 201820956749 U CN201820956749 U CN 201820956749U CN 208382403 U CN208382403 U CN 208382403U
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- rib
- wind wheel
- conditioner outdoor
- outdoor unit
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
- F24F1/06—Separate outdoor units, e.g. outdoor unit to be linked to a separate room comprising a compressor and a heat exchanger
- F24F1/38—Fan details of outdoor units, e.g. bell-mouth shaped inlets or fan mountings
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Other Air-Conditioning Systems (AREA)
- Air-Flow Control Members (AREA)
Abstract
The utility model discloses a kind of air-conditioner outdoor units, including casing, wind wheel and air outlet mesh, the wind wheel is rotatably arranged in the casing, the wind wheel includes wheel hub and circumferentially spaced multiple blades along the wheel hub, the outlet air angle of the blade is α, the air outlet mesh is located at the air side of the wind wheel, the air outlet mesh includes zone center, at least one annular brace frame and at least one set of rib group, the support frame is set in the outside of the zone center, the rib group includes multiple ribs of the circumferentially-spaced distribution along the zone center, the angle windward of the rib is β, the α, β meets: -5 °≤alpha-beta≤5 °.Air-conditioner outdoor unit according to the present utility model, outlet air windage is smaller, improves the air output of air-conditioner outdoor unit, while reducing operation noise.
Description
Technical field
The utility model relates to fields of home appliance technology, more particularly, to a kind of air-conditioner outdoor unit.
Background technique
In the related technology, the design of the rib of the air outlet mesh of air-conditioner outdoor unit is required based on experience or technique mostly,
Matching design is not carried out between rib and the wind wheel of air-conditioner outdoor unit so that the conformability between air outlet mesh and wind wheel compared with
Difference, air outlet mesh be easy to cause biggish windage, lead to the loss of air-conditioner outdoor unit air output and air-conditioner outdoor unit is with higher
Noise.
Utility model content
The utility model aims to solve at least one of the technical problems existing in the prior art.For this purpose, the utility model mentions
The outlet air windage of a kind of air-conditioner outdoor unit out, the air-conditioner outdoor unit is smaller, improves the air output of air-conditioner outdoor unit, drops simultaneously
Low operation noise.
According to the air-conditioner outdoor unit of the utility model embodiment, comprising: casing；Wind wheel, the wind wheel are rotatably arranged at
In the casing, the wind wheel includes wheel hub and circumferentially spaced multiple blades along the wheel hub, and the blade goes out
Wind angle is α；Air outlet mesh, the air outlet mesh are located at the air side of the wind wheel, and the air outlet mesh includes zone center, at least
One annular brace frame and at least one set of rib group, the support frame are set in the outside of the zone center, the rib group packet
Multiple ribs of the circumferentially-spaced distribution along the zone center are included, the angle windward of the rib is β, and described α, β meet: -5 °≤
α-β≤5°。
According to the air-conditioner outdoor unit of the utility model embodiment, by will be between the outlet air angle of blade and the angle windward of rib
Difference be set as be no more than 5 ° so that between air outlet mesh and wind wheel have good conformability, wind wheel blowout air-flow can
The windward side of rib is flow to the outlet air angular direction along blade, the windward side for avoiding rib hinders the flowing of air-flow, effectively subtracts
The small windage of air outlet mesh, improves the air output of air-conditioner outdoor unit, reduces air-flow and flow through the stream generated when air outlet mesh
Dynamic noise, to reduce the operation noise of air-conditioner outdoor unit.
Some embodiments according to the present utility model, the support frame be it is multiple, the rib group is multiple groups, multiple described
Support frame is radially outward successively arranged interval setting along the zone center, and the central axis coincidence of multiple support frames is set
It sets, between two adjacent support frames, between the zone center and the support frame adjacent with the zone center often
It is connected by rib group described in one group.
Some embodiments according to the present utility model, α, β further satisfaction: α=β.
Some embodiments according to the present utility model, the α meet:Wherein V is the blade
Trailing edge at air velocity, U be velocity component of the V on the extending direction along the blade, γ is between U and datum level
Angle, the datum level are the plane with the central axis upright of the wind wheel.
Some embodiments according to the present utility model, the U meet:Wherein Q is described
Total air output of wind wheel, D are the outer diameter of the blade, and d is the internal diameter of the blade, and r is any point on the trailing edge of the blade
The radius of place circumference.
Some embodiments according to the present utility model, the V meet:Wherein W
For the linear velocity of the wind wheel, and meet: W=ω × r, ω are the angular speed of the wind wheel.
There is the spaced radial along the blade to be distributed for some embodiments according to the present utility model, the trailing edge of the blade
N datum mark, the radius of circumference is respectively r where the described datum marks of n1、r2、…、rn, the outlet air of the n datums
Angle is respectively α1、α2、…、αn, the rib group is m group, and the angle windward of the rib of every group of rib group is respectively β1、β2、…、
βn, the α1、α2、…、αn、β1、β2、…、βnMeet: -5 °≤α1-β1≤5°、-5°≤α2-β2≤5°、…、-5°≤αn-βn≤
5 °, wherein r1< r2< ... < rn, m, n are positive integer, and m >=n >=2.
Some embodiments according to the present utility model, the n meet: 3≤n≤9.
Some embodiments according to the present utility model, the n further satisfaction: n=5.
The leeward angle of some embodiments according to the present utility model, the rib is δ, and described α, δ meet respectively: 85 °≤α
≤88°、85°≤δ≤90°。
The additional aspect and advantage of the utility model will be set forth in part in the description, partially will be from following description
In become obvious, or recognized by the practice of the utility model.
Detailed description of the invention
The above-mentioned and/or additional aspect and advantage of the utility model from the description of the embodiment in conjunction with the following figures will
Become obvious and be readily appreciated that, in which:
Fig. 1 is the cooperation schematic diagram of the wind wheel and air outlet mesh according to the air-conditioner outdoor unit of the utility model embodiment；
Fig. 2 is the cooperation schematic diagram of the angle of another of wind wheel and air outlet mesh shown in Fig. 1；
Fig. 3 is the structural schematic diagram of wind wheel shown in Fig. 1；
Fig. 4 is leaf cross-section schematic diagram corresponding to datum mark in Fig. 3；
Fig. 5 is the cooperation schematic diagram of wind wheel and air-ducting ring shown in Fig. 1；
Fig. 6 is the cooperation schematic illustration of wind wheel and air outlet mesh shown in Fig. 1.
Appended drawing reference:
Wind wheel 1, air-ducting ring 10, central axis 10a, datum level 10b,
Wheel hub 11, blade 12, trailing edge 121, leading edge 122,
Air outlet mesh 2, zone center 21, support frame 22, rib 23, windward side 231, leeward end 232.
Specific embodiment
The embodiments of the present invention are described below in detail, examples of the embodiments are shown in the accompanying drawings, wherein from beginning
Same or similar element or element with the same or similar functions are indicated to same or similar label eventually.Below by ginseng
The embodiment for examining attached drawing description is exemplary, and is only used for explaining the utility model, and should not be understood as to the utility model
Limitation.
Below with reference to Fig. 1-Fig. 6 description according to the air-conditioner outdoor unit of the utility model embodiment.
As shown in figs 1 to 6, according to the air-conditioner outdoor unit of the utility model embodiment, including casing (not shown go out), wind
Wheel 1 and air outlet mesh 2.
Wind wheel 1 is rotatably arranged in casing, and wind wheel 1 is including wheel hub 11 and along the circumferentially spaced multiple of wheel hub 11
Blade 12, the outlet air angle of blade 12 are α.Air outlet mesh 2 is located at the air side of wind wheel 1, and air outlet mesh 2 includes zone center 21, extremely
A few annular brace frame 22 and at least one set of rib group, support frame 22 are set in the outside of zone center 21, and rib group includes edge
Multiple ribs 23 of the circumferentially-spaced distribution of zone center 21, the angle windward of rib 23 are β, and α, β meet: -5 °≤alpha-beta≤5 °.
For example, as shown in figs 1 to 6, the cross-sectional shape of wheel hub 11 can be formed as round, and multiple blades 12 can edge
The circumferential uniform intervals of wheel hub 11 are located on the periphery wall of wheel hub 11, on the flow direction of air-flow, air outlet mesh 2 be located at wind wheel
Air-flow is blowed to air outlet mesh 2 by 1 downstream, i.e. wind wheel 1, and air outlet mesh 2 can direct flow into outside air-conditioner outdoor unit.
The cross-sectional shape of zone center 21 can be formed as round, and support frame 22 can be formed as closed circular ring shape knot
Structure.When support frame 22 is one, the central axis which is set in the outside of zone center 21 and support frame 22 can be with
Setting is overlapped with the central axis of zone center 21, that is to say, that on datum level 10b, the projection of the central axis of support frame 22
It is overlapped with the projection of the central axis of zone center 21, wherein datum level 10b is vertical with the central axis 10a of wind wheel 1 puts down
Face is connected between zone center 21 and support frame 22 by one group of rib group, and rib group includes setting along the circumferentially-spaced of zone center 21
The multiple ribs 23 set, the inner opposite end of each rib 23 can be connected with zone center 21, the lateral ends of each rib 23 can
To be connected with support frame 22, to support support frame 22, so that air outlet mesh 2 is formed as overall structure；When support frame 22 is multiple
When, the radial dimension of multiple support frames 22 is sequentially increased from inside to outside, allows multiple support frames 22 along the diameter of zone center 21
To sheathed setting is successively spaced from inside to outside, the central axis of multiple support frames 22 is overlapped the center of setting and multiple support frames 22
Axis is overlapped setting with the central axis of zone center 21, that is to say, that on datum level 10b, the central axis of multiple support frames 22
The projection of line is overlapped with the projection of the central axis of zone center 21, passes through one between zone center 21 and support frame 22 adjacent thereto
Group rib group is connected, is connected between every two adjacent support frames 22 also by one group of rib group, and every group of rib group includes in
Circumferentially spaced multiple ribs 23 of heart platform 21, multiple ribs 23 between zone center 21 and corresponding support frame 22
Inner opposite end can be connected with zone center 21, lateral ends can be connected with support frame 22, be located at two neighboring support frame 22 it
Between multiple ribs 23 inner opposite end can be connected with one of the inside in above-mentioned two support frame 22, lateral ends can be with
It is connected with one of the outside in above-mentioned two support frame 22, to support multiple support frames 22, so that air outlet mesh 2 is formed as whole
Body structure.That is, support frame 22 can be that x (x is positive integer and x >=1) is a, rib group can be x group；Work as support frame
When 22 central axis is overlapped setting with the central axis of zone center 21, the central axis of zone center 21 can be air outlet mesh 2
Central axis, the central axis of air outlet mesh 2 is overlapped setting with the central axis 10a of wind wheel 1.
Meet -5 °≤alpha-beta≤5 ° between the outlet air angle α of blade 12 and the angle beta windward of rib 23, that is to say, that blade 12
Difference between the angle beta windward of 23 corresponding position outlet air angle α and rib of corresponding position is no more than 5 °, so that air outlet mesh
There is good conformability, the air-flow that wind wheel 1 is blown out can flow to rib along the outlet air angular direction of blade 12 between 2 and wind wheel 1
23 windward side 231 avoids meeting for rib 23 due to differing smaller between the angle windward of rib 23 and the outlet air angle of blade 12
Wind end 231 hinders the flowing of air-flow, effectively reduces the windage of air outlet mesh 2, improves the air output of air-conditioner outdoor unit, reduces
Air-flow flows through the flow noise generated when air outlet mesh 2, to reduce the operation noise of air-conditioner outdoor unit.Wherein, blade
The above-mentioned corresponding position of 12 above-mentioned corresponding position and rib 23 can substantially be set relatively along the central axial direction of air outlet mesh 2
It sets, that is to say, that the air-flow of the above-mentioned corresponding position of blade 12 can flow to the above-mentioned corresponding position of rib 23；Blade 12
Outlet air angle α can not be a certain fixed value, the outlet air angle α at the different location of blade 12 can not be identical, equally, rib 23
Angle beta windward can not be a certain fixed value, the angle beta windward at the different location of rib 23 can not be identical, only need to guarantee leaf
Difference between the angle beta windward of 23 corresponding position outlet air angle α and rib of 12 corresponding position of piece is no more than 5 °.
For example, when rib group is not identical for the outlet air angle α at one group and the different location of blade 12 from inside to outside, this
When each rib 23 different location from inside to outside at angle beta windward can not be identical；When rib group be multiple groups and blade 12 by
When outlet air angle α at different location from inside to outside is not identical, at this point, the difference of each rib 23 of every group of rib group from inside to outside
Angle beta windward at position can be identical, and the angle beta windward of the rib 23 of multiple groups rib group can not be identical, to simplify out
The structure of wind mesh enclosure 2, convenient for the processing of air outlet mesh 2.But not limited to this.
Here, it should be noted that the meaning of " plurality " is two or more；The outlet air angle of blade 12 refers to blade
Angle between the practical flow direction datum level 10b of air-flow at 12 trailing edges 121, the trailing edge 121 of blade 12 can refer to blade
One of neighbouring air outlet mesh 2 in 12 circumferentially opposed two edge along wind wheel 1, and the week along wind wheel 1 of blade 12
One of separate air outlet mesh 2 into two opposite edges is the leading edge 122 of blade 12；The angle windward of rib 23 refers to muscle
Angle of the neutral conductor between the tangent line and datum level 10b at the windward side 231 of rib 23 on 23 cross section of item, rib 23 are horizontal
The neutral conductor on section refers to the line of 23 cross section incenter of rib；Wherein, on the cross section of rib 23, rib 23
Neighbouring wind wheel 1 one end be the windward side 231 of rib 23, rib 23 separate wind wheel 1 one end be rib 23 leeward end
232。
According to the air-conditioner outdoor unit of the utility model embodiment, by by the angle windward at the outlet air angle of blade 12 and rib 23
Between difference be set as be no more than 5 ° so that between air outlet mesh 2 and wind wheel 1 have good conformability, wind wheel 1 blow out
Air-flow can flow to the windward side 231 of rib 23 along the outlet air angular direction of blade 12, and the windward side 231 for avoiding rib 23 hinders
The flowing of air-flow effectively reduces the windage of air outlet mesh 2, improves the air output of air-conditioner outdoor unit, reduces air-flow and flows through
The flow noise generated when air outlet mesh 2, to reduce the operation noise of air-conditioner outdoor unit.
In some specific embodiments of the utility model, support frame 22 be it is multiple, rib group be multiple groups, multiple support frames
22 are radially outward successively arranged interval setting along zone center 21, and the central axis of multiple support frames 22 is overlapped setting, per adjacent
Two support frames 22 between, pass through one group of rib group phase between zone center 21 and the support frame 22 adjacent with zone center 21
Even.For example, in the example of fig. 1 and 2, support frame 22 is six, rib group is six groups, and each support frame 22 can be respectively formed
For circular ring structure, be connected by one group of rib group between each adjacent two support frame 22, zone center 21 and with 21 phase of zone center
It is connected between adjacent support frame 22 also by one group of rib group, multiple ribs 23 of every group of rib group can be along the diameter of zone center 21
Extend to straight line from inside to outside or curve, so that air outlet mesh 2 can be formed as overall structure, at this point, every group of rib group is every
Angle beta windward at the different location of a rib 23 from inside to outside can be identical, and the angle beta windward of the rib 23 of multiple groups rib group can
With not identical, that is to say, that the rib 23 of identical, the different rib group in angle windward at 23 different location of rib of identical rib group
Angle windward it is not identical, in order to the molding of air outlet mesh 2.
It is understood that support frame 22 can also be generally formed into polygonized structure etc..
Optionally, α, β further satisfaction: α=β, to further reduce the outlet air angle α of blade 12 and meeting for rib 23
Difference between wind angle beta improves the conformability between air outlet mesh 2 and wind wheel 1, further avoids the windward side of rib 23
231 hinder the flowing of air-flow, effectively reduce the windage of air outlet mesh 2, improve the air output of air-conditioner outdoor unit, reduce gas
Stream flows through the flow noise generated when air outlet mesh 2, to further reduced the operation noise of air-conditioner outdoor unit.
It is understood that the difference between the outlet air angle α of blade 12 and the angle beta windward of rib 23 may be arranged as
1 °, 2.5 °, 4 ° etc., and it is without being limited thereto.
Specifically, as shown in fig. 6, α meets:That is V × sin α=U × sin γ, wherein V is leaf
Air velocity at the trailing edge 121 of piece 12, speed V are the Vector modulation of speed U and speed W, and speed U is speed V along blade
Velocity component on 12 extending direction, speed W be wind wheel rotation speed (direction of speed W is perpendicular to the paper where Fig. 6
Face), that is to say, that air-flow with the speed flowed along 12 extending direction of blade while having with leaf under the action of blade 12
The speed that piece 12 rotates, and the direction of speed W is vertical with the central axis 10a of wind wheel 1, then central axis of the speed V in wind wheel 1
Projection on 10a is equal to projection of the speed U on the central axis 10a of wind wheel 1；Angle of the γ between U and datum level 10b,
Datum level 10b is the plane vertical with the central axis 10a of wind wheel 1.
Here, it should be noted that the extending direction of blade 12 refers to the neutral conductor on 12 cross section of blade in blade 12
Trailing edge 121 at tangential direction, the neutral conductor on 12 cross section of blade refers to the line of 12 cross section incenter of blade.
Further, to simplify the calculation, the size of speed U is reduced to radius of a circle corresponding with any point on blade 12
For r there are proportional relation and when r is the outer diameter of wheel hub 11, speed U is 0, is met so as to which U is calculated:Wherein Q is total air output of wind wheel 1, and D is the outer diameter of blade 12, and d is the internal diameter of blade 12, i.e.,
D is the outer diameter of wheel hub 11, and r is the radius of circumference where any point on the trailing edge of blade 12, which can be with the center of wind wheel 1
For the center of circle.And speed V is the Vector modulation of speed U and speed W, according to the triangle cosine law, it can be deduced that V meets:Wherein W is the linear velocity of wind wheel 1, i.e., any point on the trailing edge of blade 12
Linear velocity, and meet: W=ω × r, ω are the angular speed of wind wheel 1.
In some specific embodiments of the utility model, as shown in figs 1 to 6, the trailing edge 121 of blade 12 has along leaf
N datum mark of the spaced radial distribution of piece 12, the radius of circumference is respectively r where n datum mark1、r2、…、rn, n benchmark
Outlet air angle at point is respectively α1、α2、…、αn, rib group is m group, and the angle windward of the rib 23 of every group of rib group is respectively β1、
β2、…、βn, α1、α2、…、αn、β1、β2、…、βnMeet: -5 °≤α1-β1≤5°、-5°≤α2-β2≤5°、…、-5°≤αn-βn≤
5 °, wherein r1< r2< ... < rn, m, n are positive integer, and m >=n >=2.It, can be with as a result, in the design process of air outlet mesh 2
N datum mark at 12 trailing edge 121 of blade is chosen, by the way that the outlet air angle of each datum is calculated, to be corresponded to
The angle windward of rib group, convenient for the design of air outlet mesh 2.
For example, as m=n, respective radius r1Datum air-flow can flow to windward angle be β1Rib group
Place, respective radius r2Datum air-flow can flow to windward angle be β2Rib group at ..., respective radius rn's
It is β that the air-flow of datum, which can flow to angle windward,nRib group at；In another example as m > n, in multiple datum marks at least
The air-flow of one datum can be flow at multiple groups rib group.
Wherein, can specifically be arranged according to actual needs at the interval radially, between n datum mark of wind wheel 1.
Optionally, n meets: 3≤n≤9, thus promoting air-conditioner outdoor unit air output, reducing air-conditioner outdoor unit noise
Under the premise of, the design process of air outlet mesh 2 is simplified, the processing efficiency of air outlet mesh 2 is improved.
Still optionally further, n=5.For example, the trailing edge 121 of blade 12 has along blade 12 in the example of Fig. 1-Fig. 6
Spaced radial distribution 5 datum marks, 5 datum marks are respectively datum mark A, datum mark B, datum mark C, datum mark D, benchmark
Point E, the radius of circumference is respectively r where 5 datum marks1、r2、r3、r4、r5, r1< r2< r3< r4< r5, 5 datums
Outlet air angle is respectively α1、α2、α3、α4、α5, rib group is 6 groups, ecto-entad, 6 groups of rib groups the angle windward of rib 23 be respectively
β1、β2、β3、β4、β5、β6, α1、α2、α3、α4、α5、β1、β2、β3、β4、β5、β6Meet -5 °≤α1-β1≤5°、-5°≤α2-β2≤
5°、-5°≤α3-β3≤5°、-5°≤α3-β4≤5°、-5°≤α4-β5≤5°、-5°≤α5-β6≤5°；Wherein, at datum mark A
It is β that air-flow, which can flow to angle windward,1Rib group at, the air-flow at datum mark B can flow to windward angle be β2Rib group at,
It is β that air-flow at datum mark C, which can flow to angle windward,3And β4Rib group at, the air-flow at datum mark D can flow to angle windward
For β5Rib group at, the air-flow at datum mark E can flow to windward angle be β6At rib group.
Specifically, as shown in fig. 6, the leeward angle of rib 23 is δ, α, δ meet respectively: 85 °≤α≤88 °, 85 °≤δ≤
90 °, air-flow is under the guide functions of rib 23, the angulation change of the flow direction of air-flow is smaller, allows air-flow along muscle
Item 23 flows, and avoids the wind-guiding face of flow shedding rib 23, ensure that the guide functions of rib 23.
Here, it should be noted that the leeward angle of rib 23 refers to the neutral conductor on 23 cross section of rib in rib 23
The angle between tangent line and datum level 10b at leeward end 232.
Other compositions according to the air-conditioner outdoor unit of the utility model embodiment etc. and operation skill common for this field
All be for art personnel it is known, be not detailed herein.
Below with reference to Fig. 1-Fig. 6 with a specific embodiment detailed description according to the air conditioning chamber of the utility model embodiment
Outer machine.It is worth understanding, it is described below to be merely illustrative, rather than to the concrete restriction of utility model.
As shown in figs 1 to 6, air-conditioner outdoor unit includes casing, wind wheel 1 and air outlet mesh 2.Wind wheel 1 is rotatably arranged at machine
In shell, wind wheel 1 includes wheel hub 11 and circumferentially spaced three blades 12 along wheel hub 11, and the cross-sectional shape of wheel hub 11 can
To be formed as round, multiple blades 12 can be located on the periphery wall of wheel hub 11 along the circumferential uniform intervals of wheel hub 11.Air outlet net
Cover 2 be located at wind wheel 1 air sides, air outlet mesh 2 include 21, six annular brace frames 22 of zone center and six groups of rib groups, six
Successively interval is set in the outside of zone center 21 to support frame 22 from inside to outside, the central axis of six support frames 22 be overlapped setting and
The central axis of six support frames 22 is overlapped setting with the central axis of zone center 21, between every two adjacent support frames 22,
It is connected by one group of rib group between zone center 21 and the support frame 22 adjacent with zone center 21, every group of rib group includes in
Multiple ribs 23 of the circumferentially-spaced distribution of heart platform 21, from inside to outside, 23 numbers of rib of rib group gradually increase, i.e., outside muscle
23 numbers of rib of item group are greater than 23 numbers of rib of inside rib group.
Air outlet mesh 2 in the design process, it is required that the difference between the angle windward of rib 23 and the outlet air angle of blade 12
Value is no more than 5 °, and 5 datum marks, spaced radial arrangement and 5 of 5 datum marks along wind wheel 1 are chosen at the trailing edge 121 of blade 12
A datum mark is respectively datum mark A, datum mark B, datum mark C, datum mark D, datum mark E, the radius of circumference where 5 datum marks
Respectively r1、r2、r3、r4、r5, r1< r2< r3< r4< r5, blade 12 is respectively α at the outlet air angle of 5 datums1、α2、
α3、α4、α5；Ecto-entad, 6 groups of rib groups the angle windward of rib 23 be respectively β1、β2、β3、β4、β5、β6, gas at datum mark A
It is β that stream, which can flow to angle windward,1Rib group at, the air-flow at datum mark B can flow to windward angle be β2Rib group at, base
It is β that the air-flow at C, which can flow to angle windward, on schedule3And β4Rib group at, the air-flow at datum mark D can flow to angle windward and be
β5Rib group at, the air-flow at datum mark E can flow to windward angle be β6At rib group, thus α1、α2、α3、α4、α5、β1、β2、
β3、β4、β5、β6Meet -5 °≤α1-β1≤5°、-5°≤α2-β2≤5°、-5°≤α3-β3≤5°、-5°≤α3-β4≤5°、-5°≤
α4-β5≤5°、-5°≤α5-β6≤5°.Wherein α1、α2、α3、α4、α5Specific value can be by being calculated.
Specifically, α meets:That is V × sin α=U × sin γ, wherein V is the trailing edge of blade 12
Air velocity at 121, and speed V is the Vector modulation of speed U and speed W, i.e.,
U is velocity component of the V on the extending direction along blade 12, and W is the rotation speed of wind wheel 1 and W=ω × r, γ are U and base
Angle between quasi- face.That is, by r1、r2、r3、r4、r5Above-mentioned calculating process is substituted into respectively, then can obtain 5 respectively
The outlet air angle α of datum1、α2、α3、α4、α5, so as to obtained according to design requirement 6 groups of rib groups rib 23 angle windward
β1、β2、β3、β4、β5、β6, the leeward angle δ of rib 23 can preset, then the cross-sectional form of available rib 23.By
This, calculating is simple, is easy to implement.
According to the air-conditioner outdoor unit of the utility model embodiment, there is good cooperation between air outlet mesh 2 and wind wheel 1
Property, the air-flow that wind wheel 1 is blown out can flow to the windward side 231 of rib 23 along the outlet air angular direction of blade 12, avoid rib 23
Windward side 231 hinder air-flow flowing, effectively reduce the windage of air outlet mesh 2, improve the practical ventilation of air outlet mesh 2
Area reduces air-flow and flows through the flow noise generated when air outlet mesh 2 to improve the air output of air-conditioner outdoor unit, from
And reduce the operation noise of air-conditioner outdoor unit；It is special to the cross section of blade 12 meanwhile in the design process of air outlet mesh 2
Sign, speed of air duct air-flow etc. comprehensively consider, and have obtained the practical outlet air angle α at 12 trailing edge 121 of blade, and accuracy is higher, and
It calculates easy.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " illustrative examples ",
The description of " example ", " specific example " or " some examples " etc. means specific features described in conjunction with this embodiment or example, knot
Structure, material or feature are contained at least one embodiment or example of the utility model.In the present specification, to above-mentioned art
The schematic representation of language may not refer to the same embodiment or example.Moreover, description specific features, structure, material or
Person's feature can be combined in any suitable manner in any one or more of the embodiments or examples.
While there has been shown and described that the embodiments of the present invention, it will be understood by those skilled in the art that:
These embodiments can be carried out with a variety of variations, modification, replacement in the case where not departing from the principles of the present invention and objective
And modification, the scope of the utility model are defined by the claims and their equivalents.
Claims (10)
1. a kind of air-conditioner outdoor unit characterized by comprising
Casing；
Wind wheel, the wind wheel are rotatably arranged in the casing, and the wind wheel includes wheel hub and between the circumferential direction of the wheel hub
Every multiple blades of setting, the outlet air angle of the blade is α；
Air outlet mesh, the air outlet mesh are located at the air side of the wind wheel, the air outlet mesh include zone center, at least one
Annular brace frame and at least one set of rib group, the support frame are set in the outside of the zone center, and the rib group includes edge
Multiple ribs of the circumferentially-spaced distribution of the zone center, the angle windward of the rib are β, and described α, β meet: -5 °≤alpha-beta≤
5°。
2. air-conditioner outdoor unit according to claim 1, which is characterized in that the support frame be it is multiple, the rib group is
Multiple groups, multiple support frames are arranged along the interval that is radially outward successively arranged of the zone center, in multiple support frames
Mandrel line is overlapped setting, per between two adjacent support frames, the zone center and it is adjacent with the zone center described in
It is connected by rib group described in one group between support frame.
3. air-conditioner outdoor unit according to claim 1 or 2, which is characterized in that α, β further satisfaction: α=β.
4. air-conditioner outdoor unit according to claim 3, which is characterized in that the α meets:
Wherein V is the air velocity at the trailing edge of the blade, and U is V in the extension along the blade
Velocity component on direction, angle of the γ between U and datum level, the datum level are the central axis upright with the wind wheel
Plane.
5. air-conditioner outdoor unit according to claim 4, which is characterized in that the U meets:
Wherein Q is total air output of the wind wheel, and D is the outer diameter of the blade, and d is the leaf
The internal diameter of piece, r are the radius of circumference where any point on the trailing edge of the blade.
6. air-conditioner outdoor unit according to claim 5, which is characterized in that the V meets:
Wherein W is the linear velocity of the wind wheel, and is met: W=ω × r, ω
For the angular speed of the wind wheel.
7. air-conditioner outdoor unit according to claim 6, which is characterized in that the trailing edge of the blade has along the blade
N datum mark of spaced radial distribution, the radius of circumference is respectively r where the n datum marks1、r2、…、rn, the n bases
The outlet air angle located on schedule is respectively α1、α2、…、αn, the rib group is m group, the angle windward point of the rib of every group of rib group
It Wei not β1、β2、…、βn, the α1、α2、…、αn、β1、β2、…、βnMeet: -5 °≤α1-β1≤5°、-5°≤α2-β2≤
5°、…、-5°≤αn-βn≤ 5 °, wherein r1< r2< ... < rn, m, n are positive integer, and m >=n >=2.
8. air-conditioner outdoor unit according to claim 7, which is characterized in that the n meets: 3≤n≤9.
9. air-conditioner outdoor unit according to claim 7, which is characterized in that the n further satisfaction: n=5.
10. air-conditioner outdoor unit according to claim 1, which is characterized in that the leeward angle of the rib is δ, and described α, δ divide
Not Man Zu: 85 °≤α≤88 °, 85 °≤δ≤90 °.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820956749.7U CN208382403U (en) | 2018-06-20 | 2018-06-20 | Air-conditioner outdoor unit |
| PCT/CN2019/084637 WO2019242406A1 (en) | 2018-06-20 | 2019-04-26 | Outdoor unit of air conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820956749.7U CN208382403U (en) | 2018-06-20 | 2018-06-20 | Air-conditioner outdoor unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208382403U true CN208382403U (en) | 2019-01-15 |
Family
ID=64967562
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820956749.7U Active CN208382403U (en) | 2018-06-20 | 2018-06-20 | Air-conditioner outdoor unit |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN208382403U (en) |
| WO (1) | WO2019242406A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019242406A1 (en) * | 2018-06-20 | 2019-12-26 | 广东美的制冷设备有限公司 | Outdoor unit of air conditioner |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202382333U (en) * | 2011-12-30 | 2012-08-15 | 广东顺威精密塑料股份有限公司 | Novel improved outlet mesh enclosure for air-conditioning outdoor machine |
| CN105090104A (en) * | 2015-06-25 | 2015-11-25 | 海信（山东）空调有限公司 | Air conditioner outdoor unit with inclined centrifugal fan and air conditioner |
| CN107990443B (en) * | 2017-12-06 | 2021-07-06 | Tcl空调器(中山)有限公司 | Air outlet cover and air conditioner outdoor unit |
| CN208382403U (en) * | 2018-06-20 | 2019-01-15 | 广东美的制冷设备有限公司 | Air-conditioner outdoor unit |
-
2018
- 2018-06-20 CN CN201820956749.7U patent/CN208382403U/en active Active
-
2019
- 2019-04-26 WO PCT/CN2019/084637 patent/WO2019242406A1/en active Application Filing
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019242406A1 (en) * | 2018-06-20 | 2019-12-26 | 广东美的制冷设备有限公司 | Outdoor unit of air conditioner |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2019242406A1 (en) | 2019-12-26 |
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