CN102734234A - Protective cover, fan component and air conditioner outdoor unit - Google Patents
Protective cover, fan component and air conditioner outdoor unit Download PDFInfo
- Publication number
- CN102734234A CN102734234A CN2012102487319A CN201210248731A CN102734234A CN 102734234 A CN102734234 A CN 102734234A CN 2012102487319 A CN2012102487319 A CN 2012102487319A CN 201210248731 A CN201210248731 A CN 201210248731A CN 102734234 A CN102734234 A CN 102734234A
- Authority
- CN
- China
- Prior art keywords
- protective housing
- grid
- circumferential
- grid bar
- impeller
- 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.)
- Granted
Links
- 230000001681 protective effect Effects 0.000 title claims abstract description 87
- 239000000758 substrate Substances 0.000 claims description 37
- 230000003014 reinforcing effect Effects 0.000 claims description 4
- 230000002093 peripheral effect Effects 0.000 description 6
- 230000003068 static effect Effects 0.000 description 5
- 229910000831 Steel Inorganic materials 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 239000010959 steel Substances 0.000 description 4
- 238000007664 blowing Methods 0.000 description 3
- 239000011888 foil Substances 0.000 description 3
- 241000276425 Xiphophorus maculatus Species 0.000 description 2
- 238000004378 air conditioning Methods 0.000 description 2
- 238000005452 bending Methods 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000009423 ventilation Methods 0.000 description 2
- 230000001133 acceleration Effects 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000740 bleeding effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000005057 refrigeration Methods 0.000 description 1
Images
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
- F04D29/70—Suction grids; Strainers; Dust separation; Cleaning
- F04D29/701—Suction grids; Strainers; Dust separation; Cleaning especially adapted for elastic fluid pumps
- F04D29/703—Suction grids; Strainers; Dust separation; Cleaning especially adapted for elastic fluid pumps specially for fans, e.g. fan guards
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention discloses a protective cover, a fan component and an air conditioner outdoor unit. The protective cover comprises a grid; the grid comprises multiple circumferential grid strips and multiple radial grid strips; the circumferential grid strips are ring structures different in radius and are arranged around the central shaft of the protective cover sequentially from inside to outside; multiple radial grid strips are used for fixedly connecting multiple circumferential grid strips; and the circumferential grid strips on the protective cover shift toward one side of the protective cover gradually from inside to outside. According to the invention, the protective cover is composed of circumferential grid strips and radial grid strips; the circumferential grid strips are designed in a ball arch shape, and each circumferential grid strip shifts toward an impeller gradually from inside to outside, and the diameter is increased at an equal ratio; and the strength of the grid can be sufficiently guaranteed while improving the airflow efficiency, increasing the air quantity and reducing the noise.
Description
Technical field
The present invention relates to the air-conditioning technique field, more particularly, relate to a kind of protective housing, fan component and air conditioner outdoor machine of fan.
Background technique
The fan that is provided with in the air conditioner outdoor machine is mainly used in to the heat exchanger heat exchange when air conditioner moves, and lets air and heat exchanger do heat exchange.The outside at outdoor machine fan is provided with protective housing usually; This protective housing is generally circular grid and two kinds of structural types of square grid, and Fig. 1 is circular cell structure, on grid, is provided with radially and circumferential grid bar; Be ￠ 5 steel wires radially with circumferential grid bar; Constitute the concentric circle that radius increases 5～10mm successively by some circumferential grid bars, radially the grid bar generally is 12, radially is evenly distributed and is fixed on the circular grid; Fig. 2 is square cell structure, is made up of vertical and horizontal grid bar, and vertical and horizontal grid bar is ￠ 5 steel wires, and wherein, vertically the spacing of every steel wire is 150～250mm, and laterally the spacing of every steel wire is 10～20mm.
The protective housing of above-mentioned circular grid and square cell structure mainly is to design from the angle of ventilation with safety, but guarantor's finger can not touch the fan blade that runs up, in the requirement that can satisfy air conditioner aspect ventilation and the Security basically.But the air that comes out from heat exchanger is through protective housing the time, and the wind phenomenon of loosing appears in peripheral air stream easily; When refrigeration; Some is inhaled into the hot air of this diffusing wind phenomenon in the heat exchanger of air conditioner easily, causes the heat exchange efficiency of heat exchanger to descend, when ill-conditioned; Even compressor can appear because temperature protection is forced shutdown, and the phenomenon that air conditioner can't normally be used; In addition, when outdoor unit fan of air conditioner moves, dash mutually between the flow air and disturb; Object rubs around the dative grizzly bars etc., adds that fan blade produces the effect that separates to air-flow, makes air conditioner outdoor machine except that compressor operating produces noise; The fan operation also produces noise, and, when rotation speed of the fan increases; Air velocity speeds, turbulent flow is more, and it is bigger that wind is made an uproar, and wind is made an uproar and can be the acceleration increase along with the raising of wind speed.
Summary of the invention
The object of the invention is in order to overcome the deficiency that above-mentioned prior art exists; A kind of reasonable in design, protective housing, fan component and air conditioner outdoor machine of flowing that can improve air is provided, and this protective housing, fan component and air conditioner outdoor machine can also be used to improve air quantity, improve the wind phenomenon of loosing, improve heat exchange efficiency and reduce noise in addition.
The technological scheme that the present invention adopts is: a kind of protective housing; Comprise grid; Grid comprises some circumferential grid bars and some radially grid bars, and circumferentially the grid bar is the circular ring that radius does not wait, and from inside to outside successively around the central shaft setting of protective housing; Some radially grid bars are used for some circumferential grid bars are connected fixing, and the circumferential grid bar on the protective housing moves toward a lateral deviation of protective housing from inside to outside gradually.
Preferably, the diameter of each circumferential grid bar is geometric ratio and increases progressively from inside to outside.
Preferably, circumferentially the grid bar is bigger by 1/10～1/8 than being positioned at inboard and adjacent circumferential grid bar.
Preferably, circumferentially the grid bar distance of moving toward a lateral deviation gradually from inside to outside is geometric ratio and increases progressively.
Preferably, the radially grid bar of adjacent two layers is staggeredly arranged.
Preferably; Protective housing also comprises central substrate, wind-guiding assembly and outer rim stiffening rib; Central substrate is located at the center of protective housing; The periphery of central substrate connects grid, and the outer rim reinforcing rib ring is around the outermost that is arranged on protective housing, and the wind-guiding assembly is connected between outermost circumferential grid bar and the outer rim stiffening rib.
The present invention also proposes a kind of fan component; This fan component comprises the impeller and the protective housing of adjacent setting, and protective housing comprises grid, and grid comprises some circumferential grid bars and some radially grid bars; Circumferentially the grid bar is the circular ring that radius does not wait; And from inside to outside successively around the central shaft setting of protective housing, radially the grid bar is arranged between the two adjacent circumferential grid bars and their is connected fixing, and the circumferential grid bar on the protective housing is from inside to outside gradually toward the impeller skew.
Preferably, circumferentially the grid bar distance of moving toward a lateral deviation gradually from inside to outside is geometric ratio and increases progressively.
Preferably; Protective housing also comprises central substrate, wind-guiding assembly and outer rim stiffening rib, and central substrate is located at the middle part of protective housing, and the periphery of central substrate connects grid; The outer rim reinforcing rib ring is around the outermost that is arranged on protective housing; The wind-guiding assembly is connected between outermost circumferential grid bar and the outer rim stiffening rib, central substrate apart from impeller farthest, the outer rim stiffening rib is nearest apart from impeller.
The present invention also proposes a kind of air conditioner outdoor machine, and this air conditioner outdoor machine is provided with the said fans assembly, and impeller is installed in the inside of air conditioner outdoor machine, and protective housing is installed on the outer side panel of air conditioner outdoor machine.
Compared with prior art, the invention has the beneficial effects as follows:
As fan guard, requirement, staff safe in utilization can not stretch into and touch in the outlet frame the fan blade that runs up except needs possess for it, also need solve the appropriate design problem of air quantity and noise; Usually; Air quantity and noise are the relations of a pair of contradiction, and when air quantity was big more, the noise of its operation was also big more; The present invention is from the structural design of protective housing, sought a reasonable plan with suitable air output and suitable noise figure.Protective housing by circumferential grid bar and radially grid constitute; Circumferentially grid bar ball collar shape design; Past gradually from inside to outside impeller skew of each circumferential grid bar and diameter are geometric ratio and increase progressively, and make that the span of grid is more reasonable, and radially the grid bar connects adjacent circumferential grid bar with staggered disconnect mode; When can fully guarantee the intensity of grid, also make and form a suitable air-supply space between grid and fan blade.
Be arranged on the wind-guiding assembly between outermost circumferential grid bar and the outer rim stiffening rib; The air-flow pivot of maneuver at guiding process protective housing edge is to blowing out; Kinetic energy with deflection transfers static energy to simultaneously; To move noise significantly and reduce by 2～3db (A), increase air blowing opening air-out wind speed and throughput simultaneously, and make air output get a promotion about 10%.
Description of drawings
Fig. 1 is existing air conditioner supply grille structural representation;
Fig. 2 is existing another air conditioner supply grille structural representation;
Fig. 3 is the perspective view of fan component of the present invention;
Fig. 4 is the back side perspective view of fan component shown in Figure 3;
Fig. 5 is the plan view of fan component of the present invention;
Fig. 6 is the left view of fan component shown in Figure 5;
Fig. 7 is the S portion enlarged view among Fig. 5;
Fig. 8 is the blade profile schematic representation of stator in the fan component of the present invention;
Fig. 9 is the fundamental diagram of fan component of the present invention;
Figure 10 is the velocity triangle of stator in the fan component of the present invention.
Embodiment
Below pass through embodiment, and combine accompanying drawing that the present invention is described further.
Fan guard requirement, the staff safe in utilization except needs possess can not stretch into and touch in the outlet frame the fan blade that runs up; Also need solve the appropriate design problem of air quantity and noise, usually, air quantity and noise are the relations of a pair of contradiction; When air quantity is big more; The noise of its operation is also big more, the present invention is from the structural design of fan guard, has sought a reasonable plan with suitable air output and suitable noise figure.
Referring to Fig. 3 to Fig. 6, Fig. 3 is the perspective view of fan component of the present invention, and Fig. 4 is the back side perspective view of fan component shown in Figure 3; Fig. 5 is the plan view of fan component of the present invention; Fig. 6 is the left view of fan component shown in Figure 5, and fan component comprises protective housing 1 and impeller 2, and protective housing 1 is arranged on the front of impeller 2; On the spin axis that is centered close to impeller 2 of protective housing 1, arrange before and after both.Impeller 2 is installed on the impeller shaft of drive unit (not shown), and by drive device drives and rotation, this drive unit can be power equipments such as motor.
The center (circle) of central substrate 11, each circumferential grid bar 121 and outer rim stiffening rib 14 is positioned on the same axis; In this enforcement; This axis also is designed to overlap with the spin axis of impeller 2, and for convenience, hereinafter is a fan shaft with this axis unified Definition; The center that is central substrate 11, each circumferential grid bar 121 and outer rim stiffening rib 14 is arranged on this fan shaft, and impeller 2 is around this fan shaft rotation.Need to prove that above-mentioned setting is a kind of preferable implementation, when practical application, can carry out other rational settings as required, and allow existence deviation to a certain degree.
Further; Circumferentially the sectional shape of grid bar 121 and outer rim stiffening rib 14 roughly is square; Circumferentially the cross-sectional width (radial distance) of grid bar 121 is that 8mm～12mm, section thickness (axial distance) are 8mm～10mm, and the cross-sectional width of outer rim stiffening rib 14 is that 10mm～15mm, section thickness are 8mm～10mm.The diameter of definition central substrate 11 is D
0, the rotating diameter of impeller 2 is D
a, the diameter of outer rim stiffening rib 14 is D
bFor circumferential grid bar 121, from inside to outside, the most inboard circumferential grid bar 121 is defined as the first circumferential grid bar; What be adjacent is the second circumferential grid bar; What be positioned at the second circumferential grid bar outside is the 3rd circumferential grid bar, and by that analogy, outermost circumferential grid bar 121 is defined as the circumferential grid bar of n, and (n is the quantity of circumferential grid bar 121; And to define the first circumferential grid bar diameter be D n=17 in the present embodiment),
1, the second circumferential grid bar diameter is D
2, the 3rd circumferential grid bar diameter is D
3The circumferential grid bar of n diameter is D
nThe diameter D of above-mentioned central substrate 11
0Be meant the perpendicular distance of the edge of central substrate 11, the rotating diameter D of impeller 2 to fan shaft
aBe meant that fan blade rotates the diameter of swept surface, circumferentially the diameter of grid bar 121 and outer rim stiffening rib 14 is meant the perpendicular distance of its kernel of section to fan shaft.There is following relation in above-mentioned each diameter:
D
0=(1/5～1/4)D
a；
D
1=D
0+(1/10～1/8)D
0；
D
2=D
1+(1/10～1/8)D
1；
D
3=D
2+(1/10～1/8)D
2；
……
D
n=D
n-1+(1/10～1/8)D
n-1；
D
b=D
n+(1/8～1/7)D
n；
In addition, because protective housing 1 needs to cover impeller 2 usually, therefore, D
b>D
a, circumferentially the quantity n of grid bar 121 need satisfy above-mentioned relation.Preferably, D
bCompare D
aBig 30-60mm.
Can know that from above-mentioned relation the diameter that protective housing 1 of the present invention is incited somebody to action each circumferential grid bar 121 from inside to outside is designed to the form that geometric ratio increases progressively, the diameter of each circumferential grid bar is bigger by 1/10～1/8 to the diameter of grid bar than the last week; And gradually to impeller 2 near, promptly each circumferential grid bar 121 is on the different plane, moves toward a lateral deviation gradually from inside to outside; Circumferential grid bar 121 more outward is the closer to impeller 2; The most inboard circumferential grid bar 121 apart from impeller 2 farthest, outermost circumferential grid bar 121 is nearest apart from impeller 2, makes protective housing 1 be the shape that is similar to ball collar; Distribute step by step from inside to outside, be provided with radially.Preferably, each circumferential grid bar 121 also is designed to the form that geometric ratio increases progressively toward the distance that a lateral deviation is moved from inside to outside, and is corresponding with increasing progressively of diameter.
The peak of ball collar is the center of central substrate 11; The minimum point of ball collar be outer rim stiffening rib 14 (wind-guiding assembly 13 and outer rim stiffening rib 14 also successively gradually to impeller 2 near), its height (being the distance that peak arrives plane, outer rim stiffening rib 14 place) is (1/3～1/2) D
0See that from the left view of Fig. 6 the profile of protective housing 1 side is arc.Compared to grid bar equidistant placement protective housing at grade, protective housing 1 of the present invention increases progressively and is circumferential grid bar 121 that the ball collar shape lays and can improve air flow in the fan component, improve air quantity and reduce noise through the diameter geometric ratio.
Referring to Fig. 3 and Fig. 5; At the radially grid bar 122 that evenly is provided with some between the edge of central substrate 11 and the most inboard circumferential grid bar 121 and between the two adjacent circumferential grid bars 121; These radially grid bar 122 be divided into multilayer by circumferential grid bar 121 in the radial direction; The radially grid bar 122 that definition connects the central substrate 11 and the first circumferential grid bar is a radially grid bar of first layer; The radially grid bar 122 that connects the first circumferential grid bar and the second circumferential grid bar is a radially grid bar of the second layer; The radially grid bar 122 that connects the second circumferential grid bar and the 3rd circumferential grid bar is the 3rd a layer of radially grid bar; By that analogy, connect the circumferential grid bar of n-1 and the radially grid bar 122 of the circumferential grid bar of n and be the n layer radially the grid bar (radially the number of plies of grid bar equates with the circumferential quantity of grid bar in the present embodiment, n=17).There is certain difference in the radially grid bar quantity that each layer comprises; The quantity of the radially grid bar 122 of outside layer is more than la m; So that guarantee the structural strength of grid 12; Specific as follows: the radially grid bar 122 of first to fourth layer is spaced array circlewise with 30 ° the angle (π/6 radians) of being separated by; The 5th is spaced array circlewise with 15 ° the angle (π/12 radians) of being separated by to the radially grid bar 122 of Floor 12, and the 13 to 17 layer radially grid bar 122 is spaced array circlewise with 7.5 ° the angle (pi/2 4 radians) of being separated by.In addition, the radially grid bar 122 of adjacent two layers is staggeredly arranged in an orderly way.The radially grid bar 122 that is provided with in the above described manner except can with central substrate 11 and grid 12, two adjacent circumferential grid bars 121 be connected respectively fix; Reduce the radially quantity of grid bar 122 under the situation that the mode that can also cooperate circumferential grid bar 121 to increase progressively with the diameter geometric ratio at the strength demand that satisfies grid 12, simultaneously is provided with; Thereby reduce the total quality of protective housing 1, also have certain contribution to improving air flow, improve air quantity and reducing noise simultaneously.
Referring to Fig. 7; Fig. 7 is the S portion enlarged view among Fig. 5, and wind-guiding assembly 13 comprises some stators 131, and an end of these stators 131 connects the outer side surface of outermost circumferential grid bar 121; The other end connects the inner side surface of outer rim stiffening rib 14; Each stator 131 equidistantly distributes and forms the stator array around fan shaft, and in the present embodiment, each stator 131 is separated by 2.5～3 ° and is arranged in order array circlewise.
Referring to Fig. 8; Fig. 8 is the blade profile schematic representation of stator in the fan component of the present invention, and the chord length b of stator blade profile (imaginary cutting surface is to be the cylndrical surface that axis and process B are ordered with the fan shaft) is preferably 12～16mm, and the maximum ga(u)ge c of blade profile is preferably 1～3mm; Blade profile center line maximum deflection f is preferably 2～5mm; The blade profile leading edge is preferably 4～7mm to the maximum ga(u)ge place apart from e, and the blade profile leading edge is preferably 5～9mm to the maximum deflection place apart from a, and leading edge direction angle X1 is preferably 35～60 °; Trailing edge direction angle X2 is preferably 35～60 °, and the blade profile established angle is preferably 30～60 °.In the present embodiment, chord length b is 12mm, and maximum ga(u)ge c is 2mm; Blade profile center line maximum deflection f is 3.4mm, blade profile leading edge to maximum ga(u)ge place be 4mm apart from e, blade profile leading edge to maximum deflection place be 5.3mm apart from a; Leading edge direction angle X1 is 48 °; Trailing edge direction angle X2 is 43 °, and promptly bending angle θ is 91 °, and the blade profile established angle is 36 °.
Referring to Fig. 9 and Figure 10, Fig. 9 is the fundamental diagram of fan component of the present invention, and S representes sense of rotation.Figure 10 is the velocity triangle of stator in the fan component of the present invention, and in this enforcement, impeller 2 is movable parts; Blade 22 is rotated counterclockwise (observing from the perimeter toward inner region) around fan shaft; And protective housing 1 is non-movable part, and stator 131 is static relatively, therefore in the air-conditioning system of this fan component; Blade 22 is movable vanes, and stator 131 is stator blades.C1 is the absolute velocity of movable vane inlet air flow, and U1 is the peripheral velocity of movable vane inlet air flow, and W1 is the speed of the relative movable vane of movable vane inlet air flow; C2 is the absolute velocity of movable vane exit flow, also is the airspeed of stator blade import simultaneously, and C2u is the circumferential component (turning round speed) of stator blade inlet air flow speed, and U2 is the peripheral velocity of movable vane exit flow speed, and W2 is the relative velocity of movable vane exit flow speed; C3 is the speed of stator blade exit flow, and C3u is the circumferential component of stator blade exit flow speed; Cr is the radial velocity that stator advances (going out) implication stream, because stator 131 is static, so the vane inlet air-flow equates basically that with the radial velocity of its exit flow the Cm stator is imported and exported the mean velocity of airspeed.
During impeller 2 running, the periphery acting ability of blade 22 is the strongest, and its air quantity mainly is by blade 22 peripheral acquisitions, and the leading role to air-flow just can be realized basically in the periphery that therefore wind-guiding assembly 13 is arranged on grid 12.In the present embodiment, the diameter of outer rim stiffening rib 14 is D
bBe slightly larger than the rotating diameter D of impeller 2
a, make the periphery of wind-guiding assembly 13 corresponding impellers 2, thereby can reach wind effect preferably.Preferably, the rotating diameter D of impeller 2
aApproximate C point on the stator 131 to the twice of the perpendicular distance of fan shaft, with reference to Fig. 7, the outermost edges of blade 22 is arranged near the C point of stator 131, roughly is in the neutral position of stator 131 at C point in the radial direction.The air that impeller 2 is discharged is during through the wind-guiding assembly 13 of protective housing 1, and air-flow will produce deflection, and flow direction produces and changes, and the speed of turning round of air-flow reduces to C3u by C2u, air-flow by pivot of maneuver again to, reduce the stream swirl loss, and reduction eddy current noise.In the present embodiment, stator 131 is a kind of diffusion type blades, diffusing wind pivot of maneuver in, with kinetic energy (the 1/2* ρ * (C2u) of air-flow
2-1/2* ρ * (C3u)
2) be converted into the static pressure P of air-flow
St, promptly air-flow obtains static energy.Stator 131 can be regarded as the extension of blade 22, continues flowing of guiding air by stator 131, undiscipline air is on the edge of guided to axial direction blow out, and the throughput of fan component is increased, and improves flowing of air, raises the efficiency, and reduces noise.
As shown in Figure 9; The direction that vane foil tilts is in the opposite direction with the inclination of stator blade profile, and with respect to the sense of rotation of impeller 2, the leading edge of blade 22 (windward side) is in the forward position on the sense of rotation; The position of trailing edge (air outlet) lags behind leading edge; Be that vane foil tilts to the sense of rotation of impeller 2, the position of stator leading edge then lags behind its trailing edge, and the stator blade profile tilts to the opposite direction of the sense of rotation of impeller 2.In addition; As shown in Figure 7; With respect to the sense of rotation of impeller 2, the middle part of stator 131 is to the place ahead of sense of rotation protrusion, the stator two ends (with the connecting end of outermost circumferential grid bar 121 and with the connecting end of outer rim stiffening rib 14) the position lag behind the position at stator middle part.In order further to improve wind-guiding efficient; The position of the connecting end of itself and outermost circumferential grid bar 121 is arranged to lag behind in stator 131 and the position of the connecting end of outer rim stiffening rib 14; Promptly referring to Fig. 7, the vertical join line of the vertical join line of C point and fan shaft and E point and fan shaft lays respectively at the both sides of the vertical join line of A point and fan shaft.In the present embodiment; Impeller 2 is for being rotated counterclockwise, and in other embodiments, impeller 2 also can be designed as turn clockwise (observing from the perimeter toward inner region); Correspondingly; Vane foil tilts to clockwise direction, and the stator blade profile is to inclination counterclockwise, and protrude to clockwise the place ahead at the middle part of stator 131.
In the above-described embodiment; The central substrate 11 of protective housing 1, circumferential grid bar 121 and outer rim stiffening rib 14 all are configured to circular or annular; But in other embodiments; Central substrate 11, circumferential grid bar 121 and outer rim stiffening rib 14 also can be arranged to square; Be that central substrate 11 is square shape structure, the circumferential grid bar 121 and the outer rim stiffening rib 14 of square frame shape structure is separately fixed at the periphery of central substrate 11, and wind-guiding assembly 13 is arranged between circumferential grid bar 121 of outermost and the outer rim stiffening rib 14 and still is arranged to radially extend.In addition, central substrate 11 is mainly used in and provides support and the installing effect, and protective housing 1 of the present invention also can not be provided with central substrate 11, and other circumferential grid bars 121 and grid bar 122 radially are set in the position of central substrate 11.Also can further set up other dependency structures of protective housing in the periphery of outer rim stiffening rib 14, and this outer rim stiffening rib 14 can be used as the part of these dependency structures.
The present invention also provides a kind of air conditioner outdoor machine, and the said fans assembly is installed in this air conditioner outdoor machine, and impeller 2 is installed in the internal chamber of air conditioner outdoor machine and near heat exchanger, is used to strengthen air flow, improves the heat exchange efficiency of air conditioner outdoor machine; 1 of protective housing is installed in the circular location of air supply inlet on the outer side panel (for example front panel) of air conditioner outdoor machine, and the somewhat larger in diameter of air blowing opening is in the rotating diameter D of impeller 2
a, shown in Fig. 4～6, also be provided with screw positioning block 15 and some location buckle 16 on the outer rim stiffening rib 14 of protective housing 1.Screw positioning block 15 is radially outwards outstanding, is used for through protective housing 1 being fixed on the front panel of air conditioner outdoor machine with screw fit.Location buckle 16 is inwardly outstanding vertically, is used for protective housing 1 location and holds fixing.
When air conditioner outdoor machine is worked; Impeller 2 rotations drive air flow, make air pass through heat exchanger from the back or the side of air conditioner outdoor machine, flow forward with the air continuation after the heat exchanger heat exchange; And pass through impeller 2 and protective housing 1 successively, discharge from the front of air conditioner outdoor machine at last.Air conditioner outdoor machine utilization of the present invention is provided with the flowing state of the protective housing 1 change air of wind-guiding assembly 13; Improve the wind that looses; And can avoid peripheral air to be back to heat exchanger, thereby improve the heat exchange efficiency of heat exchanger, reduce noise and reduce power input to machine.Following table 1 is the test data of 3 air conditioner outdoor machines of a routine:
| Outdoor unit | Air quantity (m 3/h） | Noise dB (A) | Input power (W) |
| Present embodiment | 3500 | 56 | 120 |
| Conventional art | 3250 | 58 | 130 |
Table 1
Can find out by last table, utilize wind guiding blade 31 to improve flowing of air after, can improve the air quantity of air conditioner outdoor machine to a certain extent, reduce noise and reduce power input to a machine, it is about 10% specifically can to improve air quantity, reduces the about 2-3dB of noise (A).
Claims (10)
1. protective housing; Comprise grid, it is characterized in that said grid comprises some circumferential grid bars and some radially grid bars; Said circumferential grid bar is the circular ring that radius does not wait; And from inside to outside successively around the central shaft setting of protective housing, said some radially grid bars are used for said some circumferential grid bars are connected fixing, and the circumferential grid bar on the said protective housing moves toward a lateral deviation of protective housing from inside to outside gradually.
2. protective housing according to claim 1 is characterized in that, the diameter of each said circumferential grid bar is geometric ratio and increases progressively from inside to outside.
3. protective housing according to claim 2 is characterized in that, said circumferential grid bar is bigger by 1/10～1/8 than being positioned at inboard and adjacent circumferential grid bar.
4. protective housing according to claim 1 is characterized in that, the distance that said circumferential grid bar moves toward a lateral deviation from inside to outside gradually is geometric ratio and increases progressively.
5. protective housing according to claim 1 is characterized in that, the said radially grid bar of adjacent two layers is staggeredly arranged.
6. protective housing according to claim 1; It is characterized in that; Said protective housing also comprises central substrate, wind-guiding assembly and outer rim stiffening rib, and said central substrate is located at the center of said protective housing, and the periphery of said central substrate connects said grid; Said outer rim reinforcing rib ring is around the outermost that is arranged on said protective housing, and said wind-guiding assembly is connected between outermost circumferential grid bar and the said outer rim stiffening rib.
7. fan component; It is characterized in that; Said fan component comprises the impeller and the protective housing of adjacent setting, and said protective housing comprises grid, and said grid comprises some circumferential grid bars and some radially grid bars; Said circumferential grid bar is the circular ring that radius does not wait; And from inside to outside successively around the central shaft setting of protective housing, said radially grid bar is arranged between the two adjacent circumferential grid bars and their is connected fixing, and the circumferential grid bar on the said protective housing is from inside to outside gradually toward the impeller skew.
8. fan component according to claim 7 is characterized in that, the distance that said circumferential grid bar moves toward a lateral deviation from inside to outside gradually is geometric ratio and increases progressively.
9. fan component according to claim 8; It is characterized in that; Said protective housing also comprises central substrate, wind-guiding assembly and outer rim stiffening rib, and said central substrate is located at the middle part of said protective housing, and the periphery of said central substrate connects said grid; Said outer rim reinforcing rib ring is around the outermost that is arranged on said protective housing; Said wind-guiding assembly is connected between outermost circumferential grid bar and the said outer rim stiffening rib, the said impeller of said central substrate distance farthest, the said impeller of said outer rim stiffening rib distance is nearest.
10. an air conditioner outdoor machine is characterized in that, comprises each described fan component among the claim 1-7, and said impeller is installed in the inside of said air conditioner outdoor machine, and said protective housing is installed on the outer side panel of said air conditioner outdoor machine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210248731.9A CN102734234B (en) | 2012-07-18 | 2012-07-18 | Protective housing, fan component and air conditioner outdoor machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210248731.9A CN102734234B (en) | 2012-07-18 | 2012-07-18 | Protective housing, fan component and air conditioner outdoor machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102734234A true CN102734234A (en) | 2012-10-17 |
| CN102734234B CN102734234B (en) | 2016-04-20 |
Family
ID=46990318
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210248731.9A Active CN102734234B (en) | 2012-07-18 | 2012-07-18 | Protective housing, fan component and air conditioner outdoor machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102734234B (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103899576A (en) * | 2014-03-21 | 2014-07-02 | 美的集团股份有限公司 | Fan and air conditioner outdoor machine |
| CN104421212A (en) * | 2013-08-24 | 2015-03-18 | 任文华 | Air outlet cover for fan and fan |
| WO2018103329A1 (en) * | 2016-12-06 | 2018-06-14 | 珠海格力电器股份有限公司 | Grid, and air conditioner outdoor unit comprising same |
| CN110959075A (en) * | 2017-06-01 | 2020-04-03 | 施乐百有限公司 | Fan and inlet guide grill for fan |
| CN113490818A (en) * | 2018-12-28 | 2021-10-08 | 斯普灵格开利有限公司 | Grille for ventilation equipment |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19948074A1 (en) * | 1998-10-08 | 2000-04-27 | Gate Spa | Air duct for motor vehicle radiator cooling fan comprises cylindrical outer cowl supporting motor mounting bracket on curved flow-rectifying spokes of airfoil section |
| CN1368624A (en) * | 2001-01-29 | 2002-09-11 | 大金工业株式会社 | Fan protection cover for blowing device |
| US20040033135A1 (en) * | 2001-08-01 | 2004-02-19 | Delta Electronics Inc. | Composite heat-dissipating system and its used fan guard with additional supercharging function |
| CN1483125A (en) * | 2000-12-26 | 2004-03-17 | 东芝开利株式会社 | Air conditioner |
| JP2006105122A (en) * | 2004-10-07 | 2006-04-20 | Jianzhun Electric Mach Ind Co Ltd | Axial flow heat radiating fan for increasing wind pressure |
| CN1975180A (en) * | 2005-11-30 | 2007-06-06 | 山洋电气株式会社 | Axial-flow fan |
| CN101315082A (en) * | 2007-05-30 | 2008-12-03 | 星普科技股份有限公司 | Fan using static blade and movable blade to change pressure |
| CN101571147A (en) * | 2008-04-28 | 2009-11-04 | 富准精密工业(深圳)有限公司 | Radiator fan |
| CN101666320A (en) * | 2008-09-01 | 2010-03-10 | 陈亮合 | Vortex guiding axial airflow bundling device |
-
2012
- 2012-07-18 CN CN201210248731.9A patent/CN102734234B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19948074A1 (en) * | 1998-10-08 | 2000-04-27 | Gate Spa | Air duct for motor vehicle radiator cooling fan comprises cylindrical outer cowl supporting motor mounting bracket on curved flow-rectifying spokes of airfoil section |
| CN1483125A (en) * | 2000-12-26 | 2004-03-17 | 东芝开利株式会社 | Air conditioner |
| CN1368624A (en) * | 2001-01-29 | 2002-09-11 | 大金工业株式会社 | Fan protection cover for blowing device |
| US20040033135A1 (en) * | 2001-08-01 | 2004-02-19 | Delta Electronics Inc. | Composite heat-dissipating system and its used fan guard with additional supercharging function |
| JP2006105122A (en) * | 2004-10-07 | 2006-04-20 | Jianzhun Electric Mach Ind Co Ltd | Axial flow heat radiating fan for increasing wind pressure |
| CN1975180A (en) * | 2005-11-30 | 2007-06-06 | 山洋电气株式会社 | Axial-flow fan |
| CN101315082A (en) * | 2007-05-30 | 2008-12-03 | 星普科技股份有限公司 | Fan using static blade and movable blade to change pressure |
| CN101571147A (en) * | 2008-04-28 | 2009-11-04 | 富准精密工业(深圳)有限公司 | Radiator fan |
| CN101666320A (en) * | 2008-09-01 | 2010-03-10 | 陈亮合 | Vortex guiding axial airflow bundling device |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104421212A (en) * | 2013-08-24 | 2015-03-18 | 任文华 | Air outlet cover for fan and fan |
| CN104421212B (en) * | 2013-08-24 | 2016-06-29 | 任文华 | Outlet housing and fan thereof for fan |
| CN103899576A (en) * | 2014-03-21 | 2014-07-02 | 美的集团股份有限公司 | Fan and air conditioner outdoor machine |
| CN103899576B (en) * | 2014-03-21 | 2017-05-24 | 美的集团股份有限公司 | fan and air conditioner outdoor machine |
| WO2018103329A1 (en) * | 2016-12-06 | 2018-06-14 | 珠海格力电器股份有限公司 | Grid, and air conditioner outdoor unit comprising same |
| CN110959075A (en) * | 2017-06-01 | 2020-04-03 | 施乐百有限公司 | Fan and inlet guide grill for fan |
| CN113490818A (en) * | 2018-12-28 | 2021-10-08 | 斯普灵格开利有限公司 | Grille for ventilation equipment |
| CN113490818B (en) * | 2018-12-28 | 2024-05-14 | 斯普灵格开利有限公司 | Grille for ventilation equipment |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102734234B (en) | 2016-04-20 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP3842644B1 (en) | Counter-rotating fan | |
| US10052931B2 (en) | Outdoor cooling unit in vehicle air-conditioning apparatus | |
| EP3597929B1 (en) | Cooling fan and seat cooling device comprising same | |
| CN102734234B (en) | Protective housing, fan component and air conditioner outdoor machine | |
| US20150226227A1 (en) | Turbo fan and air conditioner | |
| US10731881B2 (en) | Fan coil unit with shrouded fan | |
| EP3452726B1 (en) | Vane axial fan with intermediate flow control rings | |
| EP3321512B1 (en) | Blower and air-conditioning device | |
| EP2982866B1 (en) | Propeller fan, blower device, and outdoor equipment | |
| JP4896213B2 (en) | Cross-flow fan and air conditioner equipped with the same | |
| WO2012086147A1 (en) | Through-flow fan, and indoor unit for air conditioner | |
| US8696305B2 (en) | Axial fan assembly | |
| US20120167613A1 (en) | Axial flow fan and outdoor unit for air conditioner | |
| JP3204521U (en) | fan | |
| EP3382290B1 (en) | Air conditioner | |
| CN102758802A (en) | Protection cover, fan assembly and air conditioner outdoor machine | |
| CN202732505U (en) | Protective cover and fan assembly and air conditioner outdoor unit | |
| EP3726061B1 (en) | Air duct assembly for axial fan | |
| CN103573703A (en) | Axle-flow fan blade | |
| CN209944584U (en) | Air inlet grille and air condensing units | |
| CN206190606U (en) | Centrifugal fan and dust catcher that has it | |
| CN209541018U (en) | Gas rectifier structure, axial flow blower, air conditioner indoor unit and air-conditioner outdoor unit | |
| JP2013160137A (en) | Electric fan | |
| CN202707612U (en) | Axial-flow fan blade | |
| CN206144845U (en) | Axial compressor wind wheel and air conditioner that has axial compressor wind wheel |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |