CN202561913U - Indoor air conditioner - Google Patents
Indoor air conditioner Download PDFInfo
- Publication number
- CN202561913U CN202561913U CN2012202279256U CN201220227925U CN202561913U CN 202561913 U CN202561913 U CN 202561913U CN 2012202279256 U CN2012202279256 U CN 2012202279256U CN 201220227925 U CN201220227925 U CN 201220227925U CN 202561913 U CN202561913 U CN 202561913U
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- air
- air conditioner
- indoor apparatus
- fan blade
- flow fan
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Abstract
The utility model provides an indoor air conditioner which comprises a casing, an air return opening arranged on the lower side face of the casing and an air outlet arranged on the front face of the casing. A heat exchanger is arranged above the air return opening, a water collecting plate is arranged between the air return opening and the heat exchanger, and a fan is arranged above the heat exchanger. The fan comprises a cross-flow fan blade and a volute which are matched with each other, and an air opening is arranged on the volute. The radius of the cross-flow fan blade is R, the horizontal distance between the circle center of the cross-flow fan blade and the air outlet on the front face of the casing is D, wherein R+40<=D<=R+100, and the unit of both R and D is millimeter. An air-out pressure expansion straight line of the indoor air conditioner is optimized by optimizing the horizontal distance between the circle center of the cross-flow fan blade and the outermost side of the air outlet of the of the indoor air conditioner, an effective wind field can be formed, static pressure loss of the indoor air conditioner is reduced, so that air volume is increased.
Description
Technical field
The utility model relates to field of air conditioning, in particular to a kind of indoor apparatus of air conditioner.
Background technology
The indoor set of split-type air conditioner of the prior art; Structure like the air-cooled ducted air conditioner indoor set is mainly as illustrated in fig. 1 and 2; Its structure mainly comprises housing 10, and housing 10 internal fixation are provided with heat exchanger 20, and the below of heat exchanger 20 is provided with drip tray 30; One side of heat exchanger 20 is provided with blower fan 40, and housing 10 is provided with the return air inlet 11 and air outlet 12 that is positioned at heat exchanger 20 both sides.Heat exchanger 20 mainly contains two kinds of forms with blower fan 40: heat exchanger 20 as shown in Figure 1 is positioned at the air draught type of blower fan 40 inlet sides and the bleed type that heat exchanger 20 as shown in Figure 2 is positioned at blower fan 40 air sides.For these two kinds of forms, air-conditioning is left and right sides structure, and size is bigger, and for embedded or ceiling type air conditioner, the size that reduces its indoor set is to guarantee its reliable important means of installing.
Chinese patent 200610132497.8 discloses the indoor apparatus of air conditioner that a kind of side next time of installing up and down; Be the top that blower fan 40 is installed in heat exchanger 20; Return air inlet is positioned at the bottom of indoor set, makes whole indoor machine structure become compact, has reduced the size of indoor set effectively.Yet detailed description is not made in the concrete design, particularly blower fan of this indoor apparatus of air conditioner and the design of spiral case in this patent documentation, those skilled in the art can't according to this patent documentation design the air quantity noise than aspect the more excellent indoor apparatus of air conditioner of performance.
The utility model content
The utility model aims to provide the indoor apparatus of air conditioner that a kind of side next time that improves air quantity goes out form.
The utility model provides a kind of indoor apparatus of air conditioner, comprising: housing, and be arranged on the return air inlet air outlet positive on the housing downside with being arranged on housing; The top of return air inlet is provided with heat exchanger, is provided with drip tray between return air inlet and the heat exchanger, and the top of heat exchanger is provided with blower fan; Blower fan comprises through-flow fan blade and the spiral case that cooperatively interacts and be provided with, and has the air-out opening on the spiral case; The radius of through-flow fan blade is R, and the center of circle of through-flow fan blade is D to the air outlet horizontal range in the front of housing, wherein, R+40≤D≤R+100, R, D unit are millimeter.
Preferably, R+55≤D≤R+85, R, D unit are millimeter.
Further, heat exchanger is the above evaporimeters of two foldings.
Further, spiral case comprises preceding spiral case that forms air-out opening downside and the back spiral case that forms air-out opening upper side, and the angle between preceding spiral case and the back spiral case opens to the air side, forms the air-out diffusion angle Φ of indoor apparatus of air conditioner, wherein, and 10 °≤Φ≤40 °.
Preferably, 18 °≤Φ≤25 °.
Further, the angle of the straight line in the center of circle that the line in the peak of preceding spiral case and the center of circle of through-flow fan blade and vertical direction are crossed through-flow fan blade is θ, wherein, and 65 °≤θ≤106 °.
Preferably, 80 °≤θ≤100 °.
Further, preceding spiral case is δ apart from the minimum range of through-flow fan blade, wherein, and 4mm≤δ≤10mm.
Preferably, 5mm≤δ≤7mm.
Further, preceding spiral case has the cooperation section that cooperates with through-flow fan blade near the end of through-flow fan blade, and cooperating section is straightway or arc section; Angle between the line in the two-end-point of cooperation section and the center of circle of through-flow fan blade is γ; The flow inlet angle of indoor apparatus of air conditioner is β, and efflux angles is α, wherein, and alpha+beta+γ=360 °, 100 °≤α≤170 °, 8 °≤γ≤45 °.
Preferably, 110 °≤α≤155 °, 14 °≤γ≤35 °.
Indoor apparatus of air conditioner according to the utility model; Arrive the outermost horizontal range of air outlet through the center of circle of optimizing its through-flow fan blade, thereby optimize the air-out diffusion straight line of indoor apparatus of air conditioner, guarantee that it can form effective wind field; Reduce its static pressure loss, thereby improve air quantity.
Description of drawings
The accompanying drawing that constitutes the application's a part is used to provide the further understanding to the utility model, and illustrative examples of the utility model and explanation thereof are used to explain the utility model, do not constitute the improper qualification to the utility model.In the accompanying drawings:
Fig. 1 is first kind of structural representation of indoor apparatus of air conditioner of the prior art;
Fig. 2 is second kind of structural representation of indoor apparatus of air conditioner of the prior art;
Fig. 3 is the perspective view according to the indoor apparatus of air conditioner of the utility model;
Fig. 4 is the cross-sectional schematic according to the indoor apparatus of air conditioner of the utility model;
Fig. 5 is the air-out diffusion angle Φ sketch map according to the indoor apparatus of air conditioner of the utility model;
Fig. 6 is the sketch map according to the angle theta of the line in the center of circle of the preceding spiral case peak of the indoor apparatus of air conditioner of the utility model and through-flow fan blade and vertical curve;
Fig. 7 is according to the air outlet of the indoor apparatus of air conditioner of the utility model sketch map to the horizontal range D in the center of circle of through-flow fan blade;
Fig. 8 is the sketch map according to the minimum range δ of the preceding spiral case of the indoor apparatus of air conditioner of the utility model and through-flow fan blade; And
Fig. 9 is according to the flow inlet angle β of the indoor apparatus of air conditioner of the utility model and the sketch map of efflux angles α.
The specific embodiment
Below with reference to accompanying drawing and combine embodiment to specify the utility model.
Like Fig. 3,4, shown in 7, the indoor apparatus of air conditioner according to the utility model comprises: housing 10, and be arranged on the return air inlet 11 and the air outlet 12 that is arranged on housing 10 fronts on housing 10 downsides; The top of return air inlet 11 is provided with heat exchanger 20, is provided with drip tray 30 between return air inlet and the heat exchanger 20, and the top of heat exchanger 20 is provided with blower fan 40; Blower fan 40 comprises the through-flow fan blade 41 and spiral case 42 that cooperatively interacts and be provided with, and has the air-out opening on the spiral case 42; The radius of through-flow fan blade 41 is R, and the center of circle O of through-flow fan blade 41 is D to the outermost horizontal range of the air outlet 12 in the front of housing 10, when D is too big; Unit air-out diffusion straightway is oversize, and the static pressure loss is excessive, and unit air-out air quantity diminishes; When D too hour; Unit air-out diffusion straightway is too little, and cross flow fan can not form effective wind field, and the unit air quantity is little.Heat exchanger preferably mode for be arranged to two the folding more than, thereby make wind-engaging more even.
With a specified refrigerating capacity indoor apparatus of air conditioner that is 3.5kw as experimental machine; This experimental machine adopts the two-fold heat exchanger, and the ratio on the length limit of heat exchanger is 1.8, is provided with 14 U pipes in the heat exchanger altogether; 47 watts of powers of motor, the complete machine size: the wide * of long * is high: 890mm*305mm*210mm.This experimental machine with the relevant parameter of following all experiments is: through-flow fan blade diameter 108mm; The center of circle of through-flow fan blade is D=125mm to the horizontal range of air outlet, and preceding spiral case is apart from the minimum range δ=6mm of through-flow fan blade, efflux angles α=150 °; γ=16 °, air-out diffusion angle Φ=20 °.Below all experiments all under the specified cooling condition of this experimental machine (outside 35 (dry-bulb temperature)/24 (wet-bulb temperature), 27 (dry-bulb temperature)/18 (wet-bulb temperature), inboard), carry out.
Find that through experiment as R+40≤D≤R+100, the air quantity of indoor set is comparatively desirable, in this experiment, control other parameter constants of this experimental machine, constantly debug distance B, thereby obtain following experimental data:
Table one: the air quantity of indoor apparatus of air conditioner under different D
| D(mm) | Air quantity (m 3/h) |
| R+40 | 560 |
| R+55 | 608 |
| R+70 | 624 |
| R+85 | 591 |
| R+100 | 557 |
Can find out that from above experimental data when D is increased to by R+40mm in the process of R+100mm, air quantity increases afterwards earlier and reduces, and from the air quantity judgement, D more preferably scope is R+55≤D≤R+85, when R+70mm, obtains maximum quantity of wind 624m
3/ h.
Shown in Fig. 3 to 5; Spiral case 42 comprises preceding spiral case 42a that forms air-out opening downside and the back spiral case 42b that forms air-out opening upper side, and preceding spiral case 42a opens the air side air-out diffusion angle Φ of formation indoor apparatus of air conditioner mutually with angle between the spiral case 42b of back; Wherein, 10 °≤Φ≤40 °.
In air-out diffusion angle Φ experiment, control other parameter constants of this experimental machine, constantly debug the number of degrees of air-out diffusion angle Φ.In this experiment, with regard to the air-out diffusion angle Φ of indoor apparatus of air conditioner, diffusion angle Φ designs when too small, and the unit air quantity is too little; Wind speed is bigger, causes noise of indoor unit of air conditioner excessive, when diffusion angle Φ design is too big, when promptly the air outlet of unit is too big; Air-out speed is too low, and the air quantity of unit also reduces to a certain extent, finds through a series of test; When the scope of diffusion angle Φ at 10 °～40 °, the air output of indoor apparatus of air conditioner and noise are comparatively satisfied, and air quantity noise ratio is preferably arranged.Concrete experimental data is as shown in the table:
Table two: the experimental data of indoor apparatus of air conditioner air quantity and noise under the different diffusion angles of giving vent to anger
| The air-out diffusion angle (°) | Air quantity (m 3/h) | Noise (decibel) | Air |
| 10 | 417 | 38.1 | 10.9 |
| 18 | 601 | 43.4 | 13.8 |
| 20 | 624 | 42.3 | 14.8 |
| 25 | 618 | 42.8 | 14.4 |
| 40 | 563 | 41.5 | 13.5 |
Can find out clearly that from above data in the process that air-out diffusion angle Φ constantly increases, air quantity and noise all present elder generation and increase the trend that afterwards reduces, and when air-out diffusion angle Φ was 20 °, air quantity reached maximum 624m
3/ h.When air-out diffusion angle Φ was 10 °, air quantity and noise were relatively all smaller, relatively be fit to some and hope that air-conditioning is quiet, and requirement is not too high type to air quantity.
Also can clearly find out from above data; When recently weighing the performance of indoor apparatus of air conditioner with overall target air quantity noise; More preferably the scope of air-out diffusion angle Φ is 18 °～25 °, and at this moment, the air quantity noise of indoor apparatus of air conditioner ratio is greater than 13.8; And air-out diffusion angle Φ be 20 ° for optimal value, this moment, air quantity noise ratio was 14.8.
Like Fig. 3,4, shown in 6; The angle θ of the line OA of the peak A of preceding spiral case 42a and the center of circle O of through-flow fan blade 41 and the straight line OH of the center of circle O that vertical direction is crossed through-flow fan blade 41 has very big influence to thickness, width and the air-out wind direction of complete machine; When the θ angle becomes big; Unit thickness increases, and width reduces, and the air-out wind direction is downward relatively; When the θ angle diminished, unit thickness reduced, and width increases, air outlet tendency level.Send the designing requirement of unit for side next time, θ preferably span is 65 °≤θ≤106 °, in this experiment, controls other parameter constants of this experimental machine, constantly debugs the θ number of degrees, thereby obtains following experimental data:
Table three: indoor apparatus of air conditioner under different θ angles to the influence of air-out direction
Can draw from above data; When θ constantly increased to 106 ° by 65 °, air outlet was constantly downward-sloping, from the air outlet position judgment; θ further preferably scope be 80 ° to 100 °; Most preferably value is 90 °, and the unit air-out is tilted to down, and the air outlet position is in the centre of unit bottom surface and peak.
Like Fig. 3,4, shown in 8, the upper end of preceding spiral case 42a is δ apart from the minimum range of through-flow fan blade 41, the key point that this minimum range δ also designs for indoor apparatus of air conditioner; When minimum range δ is excessive; Preceding spiral case 42a and flow field, through-flow fan blade 41 cooperation place are refluxed serious, and air quantity is little, when minimum range δ is too small; Preceding spiral case 42a and through-flow fan blade 41 cooperation place flow field backflow flow velocity are excessive, and noise is higher.Find that through experiment in the scope of δ at 4mm～10mm, the air quantity noise of indoor apparatus of air conditioner relatively is desirable, in this experiment, control other parameter constants of this experimental machine, constantly debug minimum clearance δ, thereby obtain following experimental data:
Table four: the air quantity of indoor apparatus of air conditioner under different minimum range δ and the experimental data of noise
Can draw from above data, when minimum clearance δ increases to from 4mm the process of 10mm, air quantity appears and increases the trend that afterwards reduces earlier, and noise presents the trend that reduces.With air quantity noise ratio is index, and minimum clearance δ more preferably scope is 5mm～7mm.And when minimum clearance δ was 6mm, the air quantity noise ratio of indoor apparatus of air conditioner was obtained maximum 14.8.
Like Fig. 3,4, shown in 9; Before spiral case 42a be generally straightway or arc section near what the end of through-flow fan blade 41 cooperated with through-flow fan blade 41; The line OB and the angle between the OC in the center of circle of the two-end-point of straightway or arc section and through-flow fan blade 41 are γ; It is that the flow inlet angle of indoor apparatus of air conditioner is β that lower extreme point C and back spiral case 42b go up angle apart from the line in the center of circle of the line in the closest approach of through-flow fan blade 41 and the through-flow fan blade center of circle and through-flow fan blade 41; It is that the efflux angles of indoor apparatus of air conditioner is α that back spiral case 42b goes up angle apart from the line in the center of circle of the line in the center of circle of the closest approach of through-flow fan blade 41 and through-flow fan blade 41 and upper extreme point B and through-flow fan blade 41, so alpha+beta+γ=360 °.And α, β, γ three's angle proportioning is the crucial factor of the air quantity of decision indoor apparatus of air conditioner, noise and air quantity stability.Find through experiment; When the span of γ is: 8 °≤γ≤45 °, the span of efflux angles α is 100 °≤α≤170 °, and the air quantity of indoor apparatus of air conditioner, noise and air quantity stability are all comparatively desirable; In this experiment; Control other parameter constants of this experimental machine, debugging α and γ, thus obtain following experimental data:
Table five: the experimental data of air quantity, noise and the air quantity stability of indoor apparatus of air conditioner under different α, γ
| α | γ | Air quantity (m 3/h) | Noise (decibel) | Air quantity stability |
| 170 | 8 | 564 | 44.1 | Unstable |
| 155 | 15 | 613 | 43.2 | Stable |
| 150 | 25 | 622 | 42.9 | Stable |
| 110 | 35 | 608 | 43.0 | Stable |
| 100 | 45 | 527 | 43.6 | Stable |
Can find out from above experimental data; When efflux angles is that α reduces to 100 ° gradually by 170 °, γ is increased to 45 ° of processes from 8 ° gradually, and air quantity appears and increases earlier the trend that afterwards reduces; And level of noise appears and reduces the trend that afterwards increases earlier, and it is stable that air quantity stability has instability to become.Take all factors into consideration three indexs of air quantity, noise and air quantity stability, α, γ more preferably scope are 110 °≤α≤155 °, 14 °≤γ≤35 °.And in α=150 °, air quantity, noise and air quantity stability obtain optimal value during γ=25 °.
From above description, can find out that the utility model the above embodiments have realized following technique effect:
According to the indoor apparatus of air conditioner of the utility model, through the blower fan of indoor apparatus of air conditioner and the relevant design of spiral case are made optimal design, thereby the air quantity of air-conditioning unit is improved, noise reduces, and the air quantity noise that improves indoor apparatus of air conditioner is than stable with air quantity.
The preferred embodiment that the above is merely the utility model is not limited to the utility model, and for a person skilled in the art, the utility model can have various changes and variation.All within the spirit and principle of the utility model, any modification of being done, be equal to replacement, improvement etc., all should be included within the protection domain of the utility model.
Claims (11)
1. indoor apparatus of air conditioner comprises:
Housing (10), and be arranged on the return air (11) on said housing (10) downside and be arranged on the positive air outlet (12) of said housing (10);
The top of said return air (11) is provided with heat exchanger (20), is provided with drip tray (30) between said return air (11) and the said heat exchanger (20), and the top of said heat exchanger (20) is provided with blower fan (40);
Said blower fan (40) comprises through-flow fan blade (41) and the spiral case (42) that cooperatively interacts and be provided with, and said spiral case has the air-out opening on (42);
It is characterized in that the radius of said through-flow fan blade (41) is R, the center of circle (O) of said through-flow fan blade (41) is D to said air outlet (12) horizontal range in the front of said housing (10), wherein, R+40≤D≤R+100, R, D unit are millimeter.
2. indoor apparatus of air conditioner according to claim 1 is characterized in that,
R+55≤D≤R+85, R, D unit are millimeter.
3. indoor apparatus of air conditioner according to claim 1 is characterized in that,
Said heat exchanger (20) is the above evaporimeters of two foldings.
4. indoor apparatus of air conditioner according to claim 3 is characterized in that,
Said spiral case (42) comprises preceding spiral case (42a) that forms said air-out opening downside and the back spiral case (42b) that forms said air-out opening upper side; Angle before said between spiral case (42a) and the said back spiral case (42b) opens to the air side; Form the air-out diffusion angle Φ of said indoor apparatus of air conditioner; Wherein, 10 °≤Φ≤40 °.
5. indoor apparatus of air conditioner according to claim 4 is characterized in that, 18 °≤Φ≤25 °.
6. indoor apparatus of air conditioner according to claim 4 is characterized in that,
To cross the angle of straight line (OH) in the center of circle (O) of said through-flow fan blade (41) be θ for the line (OA) in the center of circle (O) of peak (A) and the said through-flow fan blade (41) of spiral case (42a) and vertical direction before said, wherein, and 65 °≤θ≤106 °.
7. the indoor apparatus of air conditioner of stating according to claim 6 is characterized in that, 80 °≤θ≤100 °.
8. indoor apparatus of air conditioner according to claim 4 is characterized in that,
The minimum range of spiral case (42a) the said through-flow fan blade of distance (41) is δ before said, wherein, and 4mm≤δ≤10mm.
9. indoor apparatus of air conditioner according to claim 8 is characterized in that, 5mm≤δ≤7mm.
10. indoor apparatus of air conditioner according to claim 4 is characterized in that,
Spiral case (42a) has the cooperation section (BC) that cooperates with said through-flow fan blade (41) near the end of said through-flow fan blade (41) before said, and said cooperation section (BC) is straightway or arc section; Angle between the line (OB and OC) in the two-end-point of said cooperation section and the center of circle of said through-flow fan blade (41) is γ;
The flow inlet angle of said indoor apparatus of air conditioner is β, and efflux angles is α, wherein, and alpha+beta+γ=360 °, 100 °≤α≤170 °, 8 °≤γ≤45 °.
11. indoor apparatus of air conditioner according to claim 10 is characterized in that, 110 °≤α≤155 °, and 14 °≤γ≤35 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012202279256U CN202561913U (en) | 2012-05-18 | 2012-05-18 | Indoor air conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012202279256U CN202561913U (en) | 2012-05-18 | 2012-05-18 | Indoor air conditioner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202561913U true CN202561913U (en) | 2012-11-28 |
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ID=47211564
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012202279256U Expired - Lifetime CN202561913U (en) | 2012-05-18 | 2012-05-18 | Indoor air conditioner |
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| Country | Link |
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| CN (1) | CN202561913U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102644973A (en) * | 2012-05-18 | 2012-08-22 | 珠海格力电器股份有限公司 | Indoor unit of air conditioner |
-
2012
- 2012-05-18 CN CN2012202279256U patent/CN202561913U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102644973A (en) * | 2012-05-18 | 2012-08-22 | 珠海格力电器股份有限公司 | Indoor unit of air conditioner |
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| GR01 | Patent grant | ||
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Granted publication date: 20121128 |