CN103486665A - Indoor unit - Google Patents
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- CN103486665A CN103486665A CN201210343951.XA CN201210343951A CN103486665A CN 103486665 A CN103486665 A CN 103486665A CN 201210343951 A CN201210343951 A CN 201210343951A CN 103486665 A CN103486665 A CN 103486665A
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Abstract
The invention provides an indoor unit. The indoor unit comprises a casing, wherein a fan is fixedly arranged in the casing, a heat exchanger is arranged on the air inlet side of the fan, a return air inlet and an air outlet respectively positioned on the two sides of the heat exchanger are arranged on the casing, the return air inlet is arranged on the rear side surface or the upper side surface of the casing, or is simultaneously arranged on the rear side surface and the upper side surface of the casing, the fan is a cross-flow fan, and the diffusion part of the cross-flow fan is arranged downwards; the cross-flow fan comprises a cross-flow wind wheel and a volute matched with each other, and the volute is arranged in the casing in a matched manner; the volute comprises a front volute used for forming the first side surface of the diffusion part, and a rear volute used for forming the second side surface of the diffusion part, an included angle Phi of the contour line of the diffusion part and the lower side surface of the casing is more than or equal to 30 degrees and is less than or equal to 170 degrees. According to the indoor unit, the included angle of the contour line of the diffusion part and the lower side surface of the casing is optimized, so that the blowing direction is adjusted, and the air supply demands of different air supply zones are met.
Description
Technical field
The present invention relates to field of air conditioning, in particular to a kind of indoor set.
Background technology
Current household small-size indoor set (take the airduct indoor set as example) is on the market sayed from set structure, as shown in Figures 1 to 4, mainly comprise housing 10, housing 10 inside are fixedly installed heat exchanger 20, the below of heat exchanger 20 is provided with drip tray 30, one side of heat exchanger 20 is provided with blower fan 40, is provided with the return air inlet 11 and the air outlet 12 that are positioned at heat exchanger 20 both sides on housing 10.From the mode of air current composition, mainly contain following several form:
Side is sent next time, and as depicted in figs. 1 and 2,11 designs of the return air inlet of indoor set are in indoor set unit bottom, and air outlet 12 designs of indoor set are in indoor set unit side, and return air, air-out all can air ducts or be flexible coupling, and form side and send the loop of air current composition next time.
Side is returned after sending, perhaps side is sent next time, as shown in Figure 3 and Figure 4, return air inlet 11 designs of indoor set are at indoor set unit rear portion, air outlet 12 designs of indoor set are in indoor set unit side, but return air is connected to unit rear portion, air-out air duct or is flexible coupling by airduct, the air current composition loop that the formation side is returned after sending, but perhaps air-out air duct or be flexible coupling turns downwards, form side and send form next time.
From above indoor machine structure, air current composition mode, can find out, although the household small-size indoor machine structure of industry is various informative at present, for installing and using of reality, form is single, the air outlet 12 of unit all is arranged on the side of housing, and, in actual use procedure, generally all need air-out direction downward, so just need to install airduct, cause trouble is installed, and, due to the existence of airduct, cause that to heat comfortableness poor and the zone of blowing is existed to certain restriction.
Summary of the invention
The present invention aims to provide a kind of downward air-out and can meet the indoor set of the regional requirements of different air-supplies, and to solve the air-out of indoor set side, to heat comfortableness poor and the zone of blowing is existed to the problem of certain restriction.
The invention provides a kind of indoor set, comprise housing, enclosure interior is fixedly installed blower fan, the inlet side of blower fan is provided with heat exchanger, be provided with the return air inlet and the air outlet that lay respectively at the heat exchanger both sides on housing, return air inlet is arranged on the trailing flank of housing or on upper side or be arranged on the trailing flank and upper side of housing, blower fan is cross flow fan simultaneously, and the diffusion section of cross flow fan downward arranges; Cross flow fan comprises tubular wine wheel and the spiral case that cooperatively interacts and arrange, and spiral case is equipped with in enclosure interior; Spiral case comprises the front spiral case that forms diffusion section the first side and the rear spiral case that forms diffusion section the second side, between the outer contour of diffusion section and the downside of housing, is included angle, wherein, and 30 °≤φ≤170 °.
Further, 50 °≤φ≤150 °.
Further, rear spiral case is ω from line and the horizontal angle in the center of circle of the closest approach of tubular wine wheel and tubular wine wheel, wherein, and 40 °≤ω≤120 °.
Further, 60 °≤ω≤100 °.
Further, the center of circle of tubular wine wheel is L to the vertical distance of the air outlet on the downside of housing, wherein, and 60mm≤L≤180mm.
Further, 98mm≤L≤140mm.
Further, the angle between front spiral case and rear spiral case opens to air side, forms the diffusion angle γ of diffusion section, wherein, and 10 °≤γ≤40 °.
Further, 18 °≤γ≤28 °.
Further, before the Edge Distance of tubular wine wheel, the minimum clearance of spiral case is δ 1, and wherein after the Edge Distance of 3mm≤δ 1≤13mm tubular wine wheel, the minimum clearance of spiral case is δ 2, wherein 3mm≤δ 2≤15mm.
Further, 5mm≤δ 1≤8mm; 4mm≤δ 2≤9mm.
Further, the flow inlet angle of cross flow fan is α, wherein, and 120 °≤α≤250 °; The efflux angles of cross flow fan is β, wherein, and 110 °≤β≤240 °, and alpha+beta≤360 °.
Further, 160 °≤α≤190 °; 170 °≤β≤200 °.
Further, the below of heat exchanger is provided with drip tray, is provided with heat insulation filler between drip tray and housing; Be provided with heat insulation filler between spiral case and housing.
Further, return air inlet comprises the rear return air inlet be arranged on the housing trailing flank and the upper return air inlet that is arranged on the upper side of housing; Indoor set also comprises the return air cover plate be arranged on housing, the return air cover plate have cover return air inlet make indoor set from the primary importance of return air inlet return air; With cover rear return air inlet make indoor set from the second place of return air inlet return air; And open make indoor set from return air inlet and rear return air inlet the 3rd position of return air simultaneously.
Further, be provided with electric heater unit between heat exchanger and blower fan.
Further, indoor set is the airduct indoor set.
According to indoor set of the present invention, by the diffusion section by blower fan, downward arrange, thereby air outlet can be arranged on the downside of housing, make the air-out direction of indoor set directly downward, effectively solved the general room machine and airduct need to be installed just can make the downward problem of air-out direction, and the comfortableness that has improved air-out efficiency and heated; And by the angle optimization between the downside of the outer contour to diffusion section and housing, thereby regulate air-out direction, meet the regional air-supply requirement of different air-supplies.And return air inlet has multiple set-up mode, thereby meet the return air demand under different situations.
The accompanying drawing explanation
The accompanying drawing that forms the application's a part is used to provide a further understanding of the present invention, and schematic description and description of the present invention the present invention does not form inappropriate limitation of the present invention for explaining.In the accompanying drawings:
Fig. 1 is the first structural representation according to the indoor set of prior art;
Fig. 2 is the second structural representation according to the indoor set of prior art;
Fig. 3 is the third structural representation according to the indoor set of prior art;
Fig. 4 is the 4th kind of structural representation according to the indoor set of prior art;
Fig. 5 is the perspective view according to indoor set of the present invention;
Fig. 6 is the sectional structure schematic diagram according to indoor set of the present invention;
Fig. 7 is according to the correlation schematic diagram between each parts of indoor set of the present invention;
Fig. 8 is to be single structural representation of rolling over heat exchanger according to the heat exchanger of indoor set of the present invention;
Fig. 9 is to be the first structural representations of rolling over heat exchangers according to the heat exchanger of indoor set of the present invention more;
Figure 10 is to be the second structural representations of rolling over heat exchangers according to the heat exchanger of indoor set of the present invention more;
Figure 11 is ω, L, the φ position relationship schematic diagram according to indoor set of the present invention; And
Figure 12 is the schematic diagram according to the 3rd position, return air cover plate position of indoor set of the present invention.
The specific embodiment
Describe below with reference to the accompanying drawings and in conjunction with the embodiments the present invention in detail.
As Fig. 5 and 6 and Figure 11 as shown in, according to indoor set of the present invention (take the airduct indoor set as example), comprise housing 10, housing 10 inside are fixedly installed blower fan 40, the inlet side of blower fan 40 is provided with heat exchanger 20, be provided with the return air inlet 11 and the air outlet 12 that lay respectively at heat exchanger 20 both sides on housing 10, return air inlet 11 is arranged on the trailing flank of housing 10 or on upper side or be arranged on the trailing flank and upper side of housing 10 simultaneously, blower fan 40 is cross flow fan, and the diffusion section 43 of cross flow fan downward arranges; Cross flow fan comprises tubular wine wheel 41 and the spiral case 42 that cooperatively interacts and arrange, and spiral case 42 is equipped with in housing 10 inside; Spiral case 42 comprises the front spiral case 42a that forms diffusion section 43 first sides and the rear spiral case 42b that forms diffusion section 43 second sides, between the outer contour of diffusion section and the downside of housing, is included angle, wherein, and 30 °≤φ≤170 °.According to indoor set of the present invention, by the diffusion section 43 by blower fan 40, downward arrange, thereby air outlet 12 can be arranged on the downside of housing 10, make the air-out direction of indoor set directly downward, effectively solved the general room machine and airduct need to be installed just can make the downward problem of air-out direction, and the comfortableness that has improved air-out efficiency and heated; And by the angle optimization between the downside of the outer contour to diffusion section 43 and housing 10, thereby regulate air-out direction, meet the regional air-supply requirement of different air-supplies.And return air inlet has multiple set-up mode, thereby meet the return air demand under different situations.
As shown in Figure 6, the diffusion section 43 of blower fan 40 downward arranges, and the wind blown out from blower fan 40 so directly blows out downwards from the air outlet 12 of indoor set downwards, need not change wind direction, improves the efficiency of blower fan.Blower fan 40 is cross flow fan, tubular wine wheel 41 and spiral case 42 that comprising cooperatively interacts arranges, and spiral case 42 is equipped with in housing 10 inside, and the opening of spiral case 42 downward arranges, and the diffusion section of cross flow fan downward arranges.Spiral case 42 comprises front spiral case 42a and rear spiral case 42b, forms between front spiral case 42a and rear spiral case 42b diffusion section 43 downward is set, thereby make the air-flow that blows out from air outlet directly downward.
As shown in figure 11, in order to make air circulation more rationally and to meet different air-supply zone requirements, front spiral case 42a and the rear spiral case 42b of diffusion section 43 both sides can be set to curved surface, the angle of the two tangent plane is γ, for expanding blowing area, rear spiral case 42b or its tangent plane can vertically arrange or be obliquely installed with the downside of housing simultaneously.As shown in figure 11, the downside of rear spiral case 42b or its tangent plane and housing is φ.Usually, when unit design air-out zone, with the return air zone during in the same area, φ is acute angle, and when unit return air zone, with the air-supply zone during in zones of different, φ is obtuse angle.Preferably span is 30 to 170 degree.
The air-conditioner that a specified refrigerating capacity of usining is 3.5kw is as testing machine, select fan blade diameter 108mm, diffusion section angle 24 degree, flow inlet angle α=184 °, efflux angles β=176 °, adopt three folding heat exchangers, respectively 4,5,6 diameter 5mm heat exchange U pipes, when 2.5 meters of hoisting heights, the most high-grade air quantity be 634 cubic metres per hour, adjust angle φ, obtain the experimental result as shown in following table one.
Can draw from the experimental result of following table one, when angle φ is too small, have backflow phenomenon, affect heat pump performance.And, when φ is too small or during transition, in upper table when φ<30 ° or φ>170 °, minimum air-supply highly being raise, the height on the perigee distance ground that wind energy enough reaches constantly increases, and affects the effect of drying.The minimum air-supply of take highly is less than 0.2mm as index, and the most preferred scope of angle φ is 50 ° to 150 °.
Table one: the air-supply situation under different φ angles
As shown in Figure 7, the diffusion angle γ of diffusion section 43 (i.e. the angle of the opening between front spiral case 42a and rear spiral case 42b) is 10 °≤γ≤40 °.With regard to the air-out diffusion angle γ of indoor apparatus of air conditioner, diffusion angle γ designs when too small, and the unit air quantity is too little, wind speed is larger, cause noise of indoor unit of air conditioner excessive, when diffusion angle γ design is too large, when the air outlet of unit is too large, air-out speed is too low, the air quantity of unit also reduces to a certain extent, and reasonably diffusion angle setting, contribute to increase air mass flow, improve air-out effect, reduce noise.
By a series of test, find, during scope as diffusion angle γ at 10 ° to 40 °, the air output of indoor apparatus of air conditioner and noise are comparatively satisfied, and air quantity noise ratio is preferably arranged.The air-conditioner that a specified refrigerating capacity of usining is 3.5kw is as testing machine, its fan blade diameter 108mm, tubular wine wheel 41 and front spiral case gap delta 1=6mm, tubular wine wheel 41 and rear spiral case gap delta 2=5mm, flow inlet angle α=184 °, efflux angles β=176 °, adopting the two-fold heat exchanger, is respectively heat exchange U pipe and 10 diameter 5mm heat exchange U pipes that 6 diameters are 5mm, adopts different γ angles, at air-conditioner, operate in when the most high-grade, air quantity and noise test data are as shown in following table two:
Table two: under different γ angles, the test data of air quantity and noise
| γ (degree) | Air quantity (cubic meter per hour) | Noise (decibel) |
| 10 | 607 | 41.8 |
| 18 | 628 | 41.6 |
| 24 | 633 | 41.5 |
| 28 | 641 | 42.1 |
| 40 | 616 | 41.9 |
From above data, can clearly find out, in the process that diffusion angle γ constantly increases, air quantity and noise all present the trend of first increases and then decreases, also can draw, when diffusion angle γ selects 18 ° to 28 ° of preferred scopes, the air quantity of indoor apparatus of air conditioner has larger lifting, and its air quantity noise is higher than also.
As shown in Figure 7, the minimum clearance δ 1 of spiral case 42a, wherein 3mm≤δ 1≤13mm before the Edge Distance of tubular wine wheel 41; The minimum clearance δ 2 of spiral case 42b, wherein 3mm≤δ 2≤15mm after the Edge Distance of tubular wine wheel 41.Setting not only can reduce the size of indoor set like this, increases the unit air-out volume simultaneously and reduces the unit noise.
The air-conditioner that a specified refrigerating capacity of usining is 3.5kw is as testing machine, select fan blade diameter 108mm, diffusion section angle 24 degree, flow inlet angle α=184 °, efflux angles β=176 °, adopting three folding heat exchangers, is respectively 4,5,6 diameter 5mm heat exchange U pipes, regulates δ 1 and δ 2 height, at air-conditioner, operate in when the most high-grade, air quantity and noise test data are as shown in following table three: (the dimensional units millimeter, air quantity unit's cubic meter per hour, noise unit's decibel):
Table three: different δ 1 and δ 2 times, the test data of air quantity and noise
| δ1 | δ2 | Unit sectional dimension (fan blade radially) | Air quantity | Noise | Air quantity noise ratio |
| 3 | 3 | 303*195 | 651 | 43.2 | 15.1 |
| 5 | 4 | 304*198 | 648 | 41.3 | 15.7 |
| 6 | 5 | 305*200 | 641 | 40.2 | 15.9 |
| 8 | 9 | 309*211 | 574 | 39.4 | 14.6 |
| 13 | 15 | 315*217 | 482 | 37.2 | 13.0 |
From above data, can find out, as δ 1 and δ 2 when too small, although air quantity noise ratio, its noise is also larger, is not most preferred scheme, contrast above data, can find out, as 5mm≤δ 1≤8mm, 4mm≤δ 2≤9mm, air quantity and noise can be in scopes more preferably, and the air quantity noise is than also obtaining preferably value.
The flow inlet angle of cross flow fan (on the center of circle of tubular wine wheel 41 and rear spiral case, short distance is put the angle of the short distance point of the center of circle of tubular wine wheel and front spiral case) is α, the efflux angles of cross flow fan (the short distance of the center of circle of tubular wine wheel 41 and drain pan is put the angle at short strong point of the center of circle of tubular wine wheel and front spiral case) is β, flow inlet angle α and efflux angles β, usually, 120 °≤α≤250 °; 110 °≤β≤240 °.Flow inlet angle α and efflux angles β sum are less than or equal to 360 degree, when the boundary of flow inlet angle α and efflux angles β while being a bit, can think alpha+beta=360 °, and usually, boundary is a little line segment, therefore alpha+beta<360 °.
When flow inlet angle α is too small, the unit air quantity is little, and air-out volume is unstable, and whoop is arranged, and when the unit flow inlet angle is excessive, because efflux angles is too small, the unit air quantity is low.The air-conditioner that a specified refrigerating capacity of usining is 3.5kw is as testing machine, select fan blade diameter 108mm, diffusion section angle 24 degree, tubular wine wheel 41 and front spiral case gap delta 1=6mm, tubular wine wheel 41 and rear spiral case gap delta 2=5mm, adopt the two-fold heat exchanger, wind is not 6 diameter 5mm heat exchange U pipes and 10 diameter 5mm heat exchange U pipes, adopt different α, β angle, at air-conditioner, operate in when the most high-grade, air quantity and noise test data are as shown in following table four: (dimensional units millimeter, air quantity unit's cubic meter per hour)
Table four: under different α and β, the test data of air quantity and noise
| α | β | Air quantity | Other problems |
| 120 | 240 | 522 | Air-out volume is unstable, and whoop is arranged |
| 160 | 200 | 587 | |
| 185 | 175 | 634 | |
| 190 | 170 | 628 | |
| 250 | 110 | 541 |
From the data of table four, can find out, when the α angle too small, cause air quantity little, and air-out is unstable, and β is when too small, also cause air quantity little, the above data of comparative analysis, can draw, flow inlet angle α and efflux angles β more preferably scope are, 160 °≤α≤190 °, 170 °≤β≤200 °.
The below of heat exchanger 20 is provided with drip tray 30, is provided with heat insulation filler 60 between drip tray 30 and housing 10, is provided with heat insulation filler 60 between spiral case 42 and housing 10.Preferably, heat insulation filler 60 is sponge or foam, for filling fixedly drip tray or spiral case, plays insulation effect simultaneously, prevents condensation.
As shown in Figs. 5 to 7, heat exchanger 20 can be two foldings, according to current general ceiling height, the degree of depth, selects the heat exchanger of two foldings can effectively reduce the unit three-dimensional dimension, and between upper and lower two folding heat exchangers, angle is 1≤150 ° of 1,20 °≤θ of θ.For improving working (machining) efficiency and heat exchanger structure intensity, consider, heat exchanger can not adopt the form of two folding splicings, and adopts the form of one bending, can reduce the indoor set volume simultaneously.
Adopt above-mentioned testing machine, two folding heat exchangers be installed, adjust the angle between two folding heat exchangers, obtain the experimental data as shown in following table five:
Table five: the experimental data under different θ 1 angles
From can finding out of table five, when θ 1 angle too small, can cause the heat exchanger impeded drainage, return air inlet is too little, the little series of problems that waits of unit air quantity, preferably the span of θ 1 is 35 to 100 °.
As shown in Figure 8, heat exchanger 20 can be also single folding heat exchanger, and single folding heat exchanger and horizontal plane are obliquely installed.As shown in Figures 9 and 10, heat exchanger 20 also can be set to be greater than many foldings heat exchanger of two foldings, there is 2≤180 ° of 0 °≤θ of angle between two foldings of the arbitrary neighborhood of many folding heat exchangers, be preferably 2≤179 ° of 1 °≤θ, thereby blower fan is formed to the semi-surrounding structure, make the more even wind-engaging of heat exchanger, improve heat exchange efficiency.When heat exchanger is greater than two foldings and arranges, for maximal efficiency with utilize the consideration in space, in conjunction with having at present technique now, heat exchanger can be designed to 6 foldings at most.In above various heat exchangers arrange form, in order to guarantee the exchange capability of heat of unit, heat exchanger cross section U pipe number sum is 12 to 24, is preferably 13 to 18.
As shown in figure 11, rear spiral case 42b is separations of air intake and air-out from the closest approach of tubular wine wheel 41, when φ mono-timing, the upper angle ω become with horizontal line with the line in tubular wine wheel 41 centers of circle from tubular wine wheel 41 closest approaches of rear spiral case 42b is controlling the ratio in air intake zone and air-out zone, when ω is bigger than normal, the air intake district is less than normal, the unit air quantity is little, and air-out is unstable, when ω is less than normal, the too small unit air quantity that causes in air-out zone is little, and the span of general ω is 40 ° to 120 °.
The air-conditioner that a specified refrigerating capacity of usining is 3.5kw is as testing machine, its fan blade diameter 108mm, 24 ° of tubular wine wheels of diffusion section angle 41 and front spiral case gap delta 1=6mm, tubular wine wheel 41 and rear spiral case gap delta 2=5mm, adopt the two-fold heat exchanger, is respectively 6 diameter 5mm heat exchange U pipes and 10 diameter 5mm heat exchange U pipes, adopt different ω angles, at air-conditioner, operate in when the most high-grade, the test data of air quantity is as shown in following table six: (angular unit degree, air quantity unit's cubic meter per hour)
Table six: the experimental data of the air quantity under different ω angles
| ω | The most high-grade air quantity of |
| 40 | 546 |
| 60 | 582 |
| 80 | 628 |
| 100 | 623 |
| 120 | 575 |
From the data of table six can draw, as ω, from 40 °, constantly increase to the process of 120 °, the most high-grade air quantity first increases and then decreases of unit, as ω, during at 60 ° to 100 °, air quantity is obtained than the figure of merit.
As shown in figure 11, the diffusion length of unit is directly being controlled in tubular wine wheel 41 centers of circle to the distance L bottom of air outlet 12, when diffusion length too in short-term, can not form stable air-out, and air-out volume is low, and easily enters the stall zone of tubular wine wheel 41, when diffusion length is oversize, the diffusion pressure loss is excessive, and the unit air quantity is low, and the span of general L is: 60mm≤L≤180mm.
The air-conditioner that a specified refrigerating capacity of usining is 3.5kw is as testing machine, select fan blade diameter 98mm, diffusion section angle 24 degree, flow inlet angle α=184 degree, efflux angles β=176 degree, tubular wine wheel 41 and front spiral case gap delta 1=6mm, tubular wine wheel 41 and rear spiral case gap delta 2=5mm, adopt the two-fold heat exchanger, wind is not 6 diameter 5mm heat exchange U pipe and 10 diameter 5mm heat exchange U pipes, adopts different L, at air-conditioner, operates in when the most high-grade, the test data of air quantity is as shown in following table seven: (long measure is millimeter, and air quantity unit's cubic meter per hour)
Table seven: the experimental data of the air quantity under Different L
| L | Air quantity | Remarks |
| 60 | 410 | Air-out volume is unstable |
| 98 | 594 | |
| 120 | 617 | |
| 140 | 573 | |
| 180 | 445 |
From the data of table seven can draw, when L constantly increases to the process of 180mm from 60mm, the most high-grade air quantity first increases and then decreases of unit, and, when L is too small, can cause the unsettled problem of air-out volume.Consider, during scope as L at 98mm to 140mm, air quantity is obtained than the figure of merit.
Preferably, as shown in figure 12, the return air inlet 11 of indoor set comprises the rear return air inlet 11a be arranged on housing 10 trailing flanks and is arranged on the upper return air inlet 11b of the upper side of housing 10; Indoor set also comprises the return air cover plate 13 be arranged on housing 10, return air cover plate 13 have cover return air inlet 11b make indoor set from the primary importance of return air inlet 11a return air; With cover rear return air inlet 11a make indoor set from the second place of return air inlet 11b return air; And open make indoor set from return air inlet 11b and rear return air inlet 11a the 3rd position of return air simultaneously.By the setting of return air cover plate 13, thereby realize multiple return air form.The return air cover plate that covers rear return air inlet 11a and cover return air inlet 11b can be two parts independently, from the versatility of raising part and cost-saving angle, consider, be designed to a general part by covering rear return air inlet 11a with the return air cover plate that covers upper return air inlet 11b, be that return air cover plate 13 both can cover rear return air inlet 11a, also can cover return air inlet 11b.
Preferably, as shown in Figure 6, between heat exchanger 20 and blower fan 40, be provided with electric heater unit 50, when heat exchanger 20 can not meet while heating demand, can start the under powered problem that electric heater unit 50 makes up heat exchanger 20.
Preferably, aforementioned indoor set is the airduct indoor set, adopts aforesaid design on airduct indoor set field, can more effectively improve airduct indoor set efficiency and comfortableness.
As can be seen from the above description, the above embodiments of the present invention have realized following technique effect:
According to indoor set of the present invention, by the diffusion section by blower fan, downward arrange, thereby air outlet can be arranged on the downside of housing, make the air-out direction of indoor set directly downward, effectively solved the general room machine and airduct need to be installed just can make the downward problem of air-out direction, and the comfortableness that has improved air-out efficiency and heated; And by the angle optimization between the downside of the outer contour to diffusion section and housing, thereby regulate air-out direction, meet the regional air-supply requirement of different air-supplies.And return air inlet has multiple set-up mode, thereby meet the return air demand under different situations.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for a person skilled in the art, the present invention can have various modifications and variations.Within the spirit and principles in the present invention all, any modification of doing, be equal to replacement, improvement etc., within all should being included in protection scope of the present invention.
Claims (16)
1. an indoor set, comprise housing (10), described housing (10) inside is fixedly installed blower fan (40), the inlet side of described blower fan (40) is provided with heat exchanger (20), be provided with the return air inlet (11) and the air outlet (12) that lay respectively at described heat exchanger (20) both sides on described housing (10), it is characterized in that
Described return air inlet (11) is arranged on the trailing flank of described housing (10) or on upper side or be arranged on the trailing flank and upper side of described housing (10) simultaneously;
Described blower fan (40) is cross flow fan, and the diffusion section (43) of described cross flow fan downward arranges;
Described cross flow fan comprises tubular wine wheel (41) and the spiral case (42) that cooperatively interacts and arrange, and described spiral case (42) is equipped with in described housing (10) inside;
Described spiral case (42) comprises the front spiral case (42a) that forms described diffusion section (43) first sides and the rear spiral case (42b) that forms described diffusion section (43) second sides, be included angle between the outer contour of described diffusion section and the downside of described housing, wherein, 30 °≤φ≤170 °.
2. indoor set according to claim 1, is characterized in that, 50 °≤φ≤150 °.
3. indoor set according to claim 1, it is characterized in that, described rear spiral case (42b) is ω from line and the horizontal angle in the center of circle of the closest approach of described tubular wine wheel (41) and described tubular wine wheel (41), wherein, and 40 °≤ω≤120 °.
4. indoor set according to claim 3, is characterized in that, 60 °≤ω≤100 °.
5. indoor set according to claim 1, is characterized in that,
The center of circle of described tubular wine wheel (41) is L to the vertical distance of the described air outlet (12) on the downside of described housing (10), wherein, and 60mm≤L≤180mm.
6. indoor set according to claim 5, is characterized in that, 98mm≤L≤140mm.
7. indoor set according to claim 5, is characterized in that,
Angle between described front spiral case (42a) and described rear spiral case (42b) opens to air side, forms the diffusion angle γ of described diffusion section (43), wherein, and 10 °≤γ≤40 °.
8. indoor set according to claim 7, is characterized in that, 18 °≤γ≤28 °.
9. indoor set according to claim 5, is characterized in that,
The minimum clearance of the described front spiral case of the Edge Distance of described tubular wine wheel (41) (42a) is δ 1, wherein 3mm≤δ 1≤13mm;
The minimum clearance of the described rear spiral case of the Edge Distance of described tubular wine wheel (41) (42b) is δ 2, wherein 3mm≤δ 2≤15mm.
10. indoor set according to claim 9, is characterized in that,
5mm≤δ1≤8mm；
4mm≤δ2≤9mm。
11. indoor set according to claim 5, is characterized in that,
The flow inlet angle of described cross flow fan is α, wherein, and 120 °≤α≤250 °;
The efflux angles of described cross flow fan is β, wherein, and 110 °≤β≤240 °, and alpha+beta≤360 °.
12. indoor set according to claim 11, is characterized in that,
160°≤α≤190°；
170°≤β≤200°。
13. indoor set according to claim 1, is characterized in that,
The below of described heat exchanger (20) is provided with drip tray (30), between described drip tray (30) and described housing (10), is provided with heat insulation filler (60);
Be provided with heat insulation filler (60) between described spiral case (42) and described housing (10).
14. indoor set according to claim 1, is characterized in that,
Described return air inlet (11) comprises the upper return air inlet (11b) that is arranged on the rear return air inlet (11a) on described housing (10) trailing flank and is arranged on the upper side of described housing (10);
Described indoor set also comprises the return air cover plate (13) be arranged on described housing (10), and described return air cover plate (13) has and covers the primary importance that described upper return air inlet (11b) makes described indoor set return air inlet (11a) return air from described;
With the second place that covers described rear return air inlet (11a) and make described indoor set return air inlet (11b) return air from described; And open and make described indoor set return air inlet (11b) and described rear return air inlet (11a) the 3rd position of return air simultaneously from described.
15. indoor set according to claim 1, is characterized in that, between described heat exchanger (20) and described blower fan (40), is provided with electric heater unit (50).
16. according to the described indoor set of any one in claim 1 to 15, it is characterized in that, described indoor set is the airduct indoor set.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210343951.XA CN103486665A (en) | 2012-06-13 | 2012-09-14 | Indoor unit |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220278576.0 | 2012-06-13 | ||
| CN201220278576 | 2012-06-13 | ||
| CN201210343951.XA CN103486665A (en) | 2012-06-13 | 2012-09-14 | Indoor unit |
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| CN106839370A (en) * | 2015-12-07 | 2017-06-13 | 珠海格力电器股份有限公司 | Indoor apparatus of air conditioner and its control method |
| WO2020103579A1 (en) * | 2018-11-19 | 2020-05-28 | 广东美的制冷设备有限公司 | Air conditioner indoor unit and air conditioner |
| CN113757808A (en) * | 2020-06-01 | 2021-12-07 | 广东美的暖通设备有限公司 | Air duct type air conditioner |
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| CN103486669B (en) * | 2012-06-13 | 2016-03-23 | 珠海格力电器股份有限公司 | Indoor set |
| CN104456719A (en) * | 2013-09-22 | 2015-03-25 | 珠海格力电器股份有限公司 | Indoor unit and air conditioner comprising same |
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- 2012-09-14 CN CN201220472905.5U patent/CN202747568U/en not_active Expired - Lifetime
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| CN113757808A (en) * | 2020-06-01 | 2021-12-07 | 广东美的暖通设备有限公司 | Air duct type air conditioner |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103486664A (en) | 2014-01-01 |
| CN103486664B (en) | 2015-12-09 |
| CN103486666A (en) | 2014-01-01 |
| CN202747572U (en) | 2013-02-20 |
| CN202747485U (en) | 2013-02-20 |
| CN103486667B (en) | 2016-01-20 |
| CN103486669B (en) | 2016-03-23 |
| CN103486711B (en) | 2017-02-08 |
| CN202747568U (en) | 2013-02-20 |
| CN103486668A (en) | 2014-01-01 |
| CN103486669A (en) | 2014-01-01 |
| CN103486712A (en) | 2014-01-01 |
| CN103486712B (en) | 2016-05-25 |
| CN202747483U (en) | 2013-02-20 |
| CN103486667A (en) | 2014-01-01 |
| CN103486711A (en) | 2014-01-01 |
| CN103486668B (en) | 2016-04-20 |
| CN202747570U (en) | 2013-02-20 |
| CN202747569U (en) | 2013-02-20 |
| CN202747571U (en) | 2013-02-20 |
| CN202747482U (en) | 2013-02-20 |
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