CN202947215U - Indoor unit of air conditioner - Google Patents
Indoor unit of air conditioner Download PDFInfo
- Publication number
- CN202947215U CN202947215U CN 201220646755 CN201220646755U CN202947215U CN 202947215 U CN202947215 U CN 202947215U CN 201220646755 CN201220646755 CN 201220646755 CN 201220646755 U CN201220646755 U CN 201220646755U CN 202947215 U CN202947215 U CN 202947215U
- Authority
- CN
- China
- Prior art keywords
- air
- air conditioner
- indoor apparatus
- spiral case
- angle
- 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.)
- Expired - Lifetime
Links
- 238000009792 diffusion process Methods 0.000 claims abstract description 38
- 241000237858 Gastropoda Species 0.000 claims abstract description 26
- 238000013459 approach Methods 0.000 claims description 4
- 230000015572 biosynthetic process Effects 0.000 claims 1
- 238000005457 optimization Methods 0.000 abstract description 4
- 238000004378 air conditioning Methods 0.000 abstract description 3
- 238000012360 testing method Methods 0.000 description 17
- 108700041286 delta Proteins 0.000 description 13
- 238000010586 diagram Methods 0.000 description 6
- 238000000034 method Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 238000009413 insulation Methods 0.000 description 4
- 230000007423 decrease Effects 0.000 description 3
- 238000013461 design Methods 0.000 description 3
- 239000000945 filler Substances 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000001154 acute effect Effects 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 238000010835 comparative analysis Methods 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Images
Landscapes
- Air Filters, Heat-Exchange Apparatuses, And Housings Of Air-Conditioning Units (AREA)
Abstract
The utility model provides an air-conditioning indoor unit, which comprises a shell, a heat exchanger and a cross-flow fan, wherein the heat exchanger and the cross-flow fan are arranged in the shell; the volute comprises a front volute tongue forming a first side surface of a diffusion part of the cross-flow fan and a rear volute forming a second side surface of the diffusion part opposite to the first side surface, the diffusion part is arranged downwards and forms an air outlet on the lower side surface of the shell, and the rear side surface and/or the upper side surface of the shell are/is provided with an air return opening; the minimum clearance between the front volute tongue and the rear volute is D, wherein D is more than or equal to 40mm and less than or equal to 75 mm. The utility model discloses a set up the air outlet on the downside, the return air inlet sets up on trailing flank and/or last side to realize the local furred ceiling in room, improve the air current circulation in whole room. Additionally, the utility model discloses a to preceding snail tongue and the minimum clearance D optimization between the back spiral case, adjust the size of air outlet to optimize air-out speed, and the noise reduction.
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
Along with the raising of people's living standard, people also more and more pay attention to the finishing in room, concealed type room air conditioner unit because its concealed advantage is welcomed by the people gradually.The concealed type indoor apparatus of air conditioner air inlet/outlet form of unidirectional air-out in the market mainly contains two kinds, the first is advanced side under being and is gone out formula concealed type indoor apparatus of air conditioner, be that return air inlet 11 is arranged on the bottom surface of indoor apparatus of air conditioner, air outlet 12 is arranged on the trailing flank of indoor apparatus of air conditioner.Fig. 1 advances side under being and goes out flow area sketch after formula concealed type indoor apparatus of air conditioner is installed, advancing side under the concealed type indoor apparatus of air conditioner adopts goes out formula and has and only need the local furred ceiling in room, save the advantage of a large amount of room ceiling voiies, but as shown in Figure 1, at first the air-out of indoor apparatus of air conditioner arrives the top, room, then by airflow circulating down, because the mankind's zone of action in the middle and lower part in room, is caused the larger waste of energy like this; And when air-conditioning heating, because hot-air density is lower, hot-air is difficult to reach the middle and lower part, room, causes thermal comfort poor.
Another advances next-out concealed type indoor apparatus of air conditioner under being, namely return air inlet 11 and air outlet 12 all are positioned on the downside of indoor set.Fig. 2 advances the flow area sketch after next-out concealed type indoor apparatus of air conditioner is installed under being, advancing the next-out tool for mounting under the concealed type indoor apparatus of air conditioner adopts has the indoor apparatus of air conditioner air-out to be easier to send to the middle and lower part in room.But under to enter next-out indoor apparatus of air conditioner airflow circulating zone less, need to be arranged in the room central region, therefore the room needs whole whole furred ceilings, cause the room height to reduce, easily cause sense of depression.And due to air outlet 12 and return air inlet 11 nearer, cause air-flow to be difficult to arrive the corner portions located in room, the temperature difference in room is larger, comfortableness is bad.
The utility model content
The utility model aims to provide a kind of indoor apparatus of air conditioner, and existing concealed type indoor apparatus of air conditioner can not satisfy local furred ceiling simultaneously and indoor middle and lower part heats the good problem of comfortableness to solve.
The utility model provides a kind of indoor apparatus of air conditioner, comprises housing, and the heat exchanger and the cross flow fan that are arranged on enclosure interior, and cross flow fan comprises tubular wine wheel and the spiral case that cooperatively interacts and arrange; Spiral case comprises the front snail tongue of the first side of the diffusion section that forms cross flow fan and the rear spiral case of second side relative with the first side that forms diffusion section, diffusion section forms the air port on below setting and the downside at housing, have return air inlet on the trailing flank of housing and/or upper side; Minimum clearance between front snail tongue and rear spiral case is D, wherein, and 40mm≤D≤75mm.
Further, 45mm≤D≤65mm.
Further, the angle between front snail tongue and rear spiral case opens to the air side, forms the diffusion angle γ of diffusion section, wherein, and 10 °≤γ≤40 °.
Further, before the Edge Distance of tubular wine wheel, the minimum clearance of snail tongue is δ 1, wherein 3mm≤δ 1≤13mm; After the Edge Distance of tubular wine wheel, the minimum clearance of spiral case is δ 2, wherein 3mm≤δ 2≤15mm.
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, heat exchanger is two folding heat exchangers, and two folding heat exchangers comprise interconnective the first heat exchange section and the second heat exchange section, has angle theta 1 between the first heat exchange section and the second heat exchange section, wherein, and 1≤150 ° of 20 °≤θ.
Further, heat exchanger is the many foldings heat exchanger greater than two foldings.
Further, be angle between the downside of the second side of diffusion section and housing
, wherein, 30 °≤
≤ 170 °.
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, 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.
According to indoor apparatus of air conditioner of the present utility model, by air outlet is arranged on downside, return air inlet is arranged on trailing flank and/or upper side, thereby realize the local furred ceiling in room, save a large amount of room ceiling voiies, and air-flow can be delivered to relatively easily the middle and lower part in room, improve the airflow circulating in whole room, thereby improve comfortableness.In addition, the utility model adjusts the size in air port by the minimum clearance D between front snail tongue and rear spiral case is optimized, thereby optimization wind speed degree is used the wind speed degree more stable, and reduced noise.
Description of drawings
The accompanying drawing that consists of the application's a part is used to provide further understanding of the present utility model, and illustrative examples of the present utility model and explanation thereof are used for explaining the utility model, do not consist of improper restriction of the present utility model.In the accompanying drawings:
Fig. 1 be in prior art next time side go out the airflow circulating schematic diagram of formula indoor apparatus of air conditioner;
Fig. 2 is the airflow circulating schematic diagram of next-out indoor apparatus of air conditioner next time in prior art;
Fig. 3 is the airflow circulating schematic diagram that the side of indoor apparatus of air conditioner of the present utility model is returned next-out;
Fig. 4 is the perspective view according to indoor apparatus of air conditioner of the present utility model;
Fig. 5 be according to indoor apparatus of air conditioner of the present utility model along tubular wine wheel sectional structure schematic diagram radially;
Fig. 6 is according to the correlation schematic diagram between each parts of indoor apparatus of air conditioner of the present utility model;
Fig. 7 rolls over the structural representation of heat exchanger according to the heat exchanger of airduct indoor set of the present utility model for list;
Fig. 8 is according to the heat exchanger of airduct indoor set of the present utility model the first structural representations for many folding heat exchangers;
Fig. 9 is according to the heat exchanger of airduct indoor set of the present utility model the second structural representations for many folding heat exchangers; And
Figure 10 be according to the ω of airduct indoor set of the present utility model, L,
The position relationship schematic diagram.
The specific embodiment
Describe below with reference to the accompanying drawings and in conjunction with the embodiments the utility model in detail.
As shown in Fig. 3 to 6, according to indoor apparatus of air conditioner of the present utility model, comprise housing 10, and the heat exchanger 20 and the cross flow fan 40 that are arranged on enclosure interior, cross flow fan 40 comprises tubular wine wheel 41 and the spiral case 42 that cooperatively interacts and arrange; Spiral case 42 comprises the front snail tongue 42a of the first side of the diffusion section 43 that forms cross flow fan 40 and the rear spiral case 42b of second side relative with the first side that forms diffusion section 43, diffusion section 43 arranges towards the below and form air port 12 on the downside of housing 10, has return air inlet 11 on the trailing flank of housing and/or upper side; Minimum clearance between front snail tongue 42a and rear spiral case 42b is D, wherein, and 40mm≤D≤75mm.The utility model is by being arranged on air outlet 12 on downside, and return air inlet 11 is arranged on trailing flank and/or upper side, thereby realizes the local furred ceiling in room, save a large amount of room ceiling voiies, and air-flow is delivered to the middle and lower part in room relatively easily.As shown in Figure 3, when air outlet 12 is positioned on downside, when return air inlet 11 was positioned on trailing flank, airflow circulating improved the airflow circulating in whole room as shown by the arrows in Figure 3, thereby improved comfortableness.In addition, the utility model adjusts the size in air port 12 by the minimum clearance D between front snail tongue 42a and rear spiral case 42b is optimized, thereby optimization wind speed degree is used the wind speed degree more stable, and reduced noise.
Usually, minimum clearance D between front snail tongue 42a and rear spiral case 42b, determining the diffusion section 43 minimum air-out sizes of cross flow fan 40, when minimum clearance D too hour, cause the indoor apparatus of air conditioner air quantity smaller, because the air-out wind speed is higher, noise is larger simultaneously, when minimum clearance D was too large, the air-out wind speed was unstable.
Particularly, air-conditioner take a specified refrigerating capacity as 3.5kw is as testing machine, select fan blade diameter 108mm, diffusion section angle 24 degree, the gap delta 1=6mm of tubular wine wheel 41 and front snail tongue 42a, tubular wine wheel 41 and rear spiral case 42b gap delta 2=5mm, adopt the two-fold heat exchanger, the two total U numbers of folding evaporimeter are 16 U, and the angle between two folding heat exchangers is 48 °, respectively be 24 degree with horizontal plane, if can get following experimental data by the minimum D size of adjusting snail tongue and drain pan.
Table one: under different D sizes, the most high-grade air quantity of indoor apparatus of air conditioner and noise data
From can finding out of table one, when minimum clearance D is excessive, can cause the indoor apparatus of air conditioner air-out unstable, minimum clearance D between current snail tongue 42a and rear spiral case 42b is when 45mm to 65mm, indoor apparatus of air conditioner can obtain a higher air quantity noise ratio, and the unsettled phenomenon of air-out can not occur.
As shown in Figure 6, the diffusion angle γ (i.e. the angle of the opening between front snail tongue 42a and rear spiral case 42b) of the diffusion section 43 of cross flow fan 40 is 10 °≤γ≤40 °.With regard to the air-out diffusion angle γ of indoor apparatus of air conditioner, when diffusion angle γ design was too small, the unit air quantity was too little, wind speed is larger, causes noise of indoor unit of air conditioner excessive, when diffusion angle γ design is too large, be the air outlet of unit when too large, air-out speed is too low, and the air quantity of unit also reduces to a certain extent, and wind speed is lower, be unfavorable for that also whole room forms the circulation of effective ground vapour stream, reasonably diffusion angle setting helps to increase air mass flow, improve air-out effect, reduce noise.
Find by a series of test, during scope as diffusion angle γ 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.Air-conditioner take a specified refrigerating capacity as 3.5kw is as testing machine, its fan blade diameter 108mm, tubular wine wheel 41 and front snail tongue room δ 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, operate in when the most high-grade at air-conditioner, 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 |
Can clearly find out from above data, 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 ° ~ 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 6, the minimum clearance δ 1 of snail tongue 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 apparatus of air conditioner like this, increases simultaneously the unit air-out volume and reduces the unit noise.
Air-conditioner take a specified refrigerating capacity as 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, operate in when the most high-grade at air-conditioner, air quantity and noise test data are as shown in following table three: (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 |
[0043]Can find out from above data, as δ 1 and δ 2 when too small, although the air quantity noise is larger, 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.
As shown in Figure 6, the flow inlet angle of cross flow fan (angle of the line of the center of circle of the line of beeline point and tubular wine wheel and front snail tongue beeline point on the center of circle of tubular wine wheel 41 and rear spiral case) is α, the efflux angles of cross flow fan (angle of the line of the line of the center of circle of tubular wine wheel 41 and drain pan beeline point and the center of circle of tubular wine wheel and front snail tongue beeline point) 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 when 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 was too small, the unit air quantity was little, and air-out volume is unstable, and whoop is arranged, and when the unit flow inlet angle was excessive, because efflux angles is too small, the unit air quantity was low.Air-conditioner take a specified refrigerating capacity as 3.5kw is as testing machine, select fan blade diameter 108mm, diffusion section angle 24 degree, tubular wine wheel 41 and front snail tongue room δ 1=6mm, tubular wine wheel 41 and rear spiral case gap delta 2=5mm, adopt the two-fold heat exchanger, respectively 6 diameter 5mm heat exchange U pipes and 10 diameter 5mm heat exchange U pipes, adopt different α, β angle, operate in when the most high-grade at air-conditioner, air quantity and noise test data are as shown in following table four: (dimensional units millimeter, air quantity unit's cubic meter are 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 |
Can find out from the data of table four, 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, and flow inlet angle α and efflux angles β more preferably scope are, 160 °≤α≤190 °, 170 °≤β≤200 °.
As shown in Figure 5, 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, is used for filling fixedly drip tray or spiral case, plays simultaneously insulation effect, prevents condensation.
As shown in Figure 5 and Figure 6, heat exchanger 20 can be two foldings, according to present general ceiling height, the degree of depth, selects the heat exchangers of two foldings can effectively reduce the unit three-dimensional dimension, and between the two folding heat exchangers of up and down, angle is 1≤150 ° of 1,20 °≤θ of θ.Consider for improving working (machining) efficiency and heat exchanger structure intensity, heat exchanger can not adopt the form of two folding splicings, and adopts the form of one bending, can reduce the indoor apparatus of air conditioner 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 7, heat exchanger 20 also can be single folding heat exchanger, and single folding heat exchanger and horizontal plane are obliquely installed.As shown in Fig. 8 and 9, heat exchanger 20 also can be set to the many foldings heat exchanger greater than two foldings, have 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 the semi-surrounding structure, make the more even wind-engaging of heat exchanger, improve heat exchange efficiency.When heat exchanger arranged greater than two foldings, for maximal efficiency and the consideration that utilizes the space, in conjunction with at present existing technique, heat exchanger can be designed at most 6 foldings.In above various heat exchangers arranged form, in order to guarantee the exchange capability of heat of unit, heat exchanger cross section U pipe number sum was 12 ~ 24, is preferably 13 ~ 18.
As shown in Figures 8 to 10, rear spiral case 42b or its tangent plane can vertically arrange or be obliquely installed with the downside of housing.As shown in figure 10, be angle between the downside of the second side of diffusion section 43 and housing
Namely, the angle of the downside of spiral case 42b or its tangent plane and housing is
Usually, when unit design air-out zone and return air zone are in the same area,
Be acute angle, when unit return air zone with the air-supply zone during in zones of different,
Be the obtuse angle.Preferably span is 30 ° to 170 °.With above-mentioned testing machine, when 2.5 meters of hoisting heights, the most high-grade air quantity be 634 cubic metres per hour, adjust angle
Obtain the experimental result as shown in following table six.
Can draw from the experimental result of following table six, work as angle
When too small, there is backflow phenomenon, affects heat pump performance.And work as
During too small or transition, namely in upper table
Perhaps
The time, minimum air-supply is highly raise, namely the height on the perigee distance ground that enough reaches of wind energy constantly increases, impact blowing effect.Take minimum air-supply height less than 0.2mm as index, angle
Most preferred scope is 50 ° to 150 °.
Table six: difference
Air-supply situation under angle
As shown in figure 10, rear spiral case 42b is separations of air intake and air-out from the closest approach of tubular wine wheel 41, when
One regularly, the upper angle ω that becomes with horizontal line from tubular wine wheel 41 closest approaches and the line in tubular wine wheel 41 centers of circle 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 ° ~ 120 °.
Air-conditioner take a specified refrigerating capacity as 3.5kw is as testing machine, its fan blade diameter 108mm, 24 ° of tubular wine wheels of diffusion section angle 41 and front snail tongue room δ 1=6mm, tubular wine wheel 41 and rear spiral case gap delta 2=5mm adopt the two-fold heat exchanger, are respectively 6 diameter 5mm heat exchange U pipes and 10 diameter 5mm heat exchange U pipes, adopt different ω angles, operate in when the most high-grade at air-conditioner, the test data of air quantity is as shown in following table seven: (angular unit degree, air quantity unit's cubic meter are per hour)
Table seven: 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 |
Can draw from the data of upper table seven, constantly increase to from 40 ° as ω the process of 120 °, the most high-grade air quantity first increases and then decreases of unit, during at 60 ° to 100 °, air quantity is obtained than the figure of merit as ω.
As shown in figure 10, 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.
Air-conditioner take a specified refrigerating capacity as 3.5kw is as testing machine, select fan blade diameter 98mm, 24 ° of diffusion section angles, flow inlet angle α=184 °, efflux angles β=176 °, tubular wine wheel 41 and front snail tongue room δ 1=6mm, tubular wine wheel 41 and rear spiral case gap delta 2=5mm, adopt the two-fold heat exchanger, be respectively 6 diameter 5mm heat exchange U pipe and 10 diameter 5mm heat exchange U pipes, adopt different L, operate in when the most high-grade at air-conditioner, the test data of air quantity is as shown in following table eight: (long measure is millimeter, and air quantity unit's cubic meter per hour)
Table eight: the experimental data of the air quantity under Different L
| L | Air quantity | Remarks |
[0070]
| 60 | 410 | Air-out volume is unstable |
| 98 | 594 | |
| 120 | 617 | |
| 140 | 573 | |
| 180 | 445 |
Can draw from the data of upper table eight, 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 ~ 140mm, air quantity is obtained than the figure of merit.
Preferably, as shown in Figure 5, be provided with electric heater unit 50 between heat exchanger 20 and blower fan 40, when heat exchanger 20 can not satisfy when heating demand, can start the under powered problem that electric heater unit 50 makes up heat exchanger 20.
As can be seen from the above description, the utility model the above embodiments have realized following technique effect:
According to indoor apparatus of air conditioner of the present utility model, by air outlet is arranged on downside, return air inlet is arranged on trailing flank and/or upper side, thereby realize the local furred ceiling in room, save a large amount of room ceiling voiies, and air-flow can be delivered to relatively easily the middle and lower part in room, improve the airflow circulating in whole room, thereby improve comfortableness.In addition, the utility model adjusts the size in air port by the minimum clearance D between front snail tongue and rear spiral case is optimized, thereby optimization wind speed degree is used the wind speed degree more stable, and reduced noise.
These are only preferred embodiment of the present utility model, be not limited to the utility model, for a person skilled in the art, the utility model can have various modifications and variations.All within spirit of the present utility model and principle, any modification of doing, be equal to replacement, improvement etc., within all should being included in protection domain of the present utility model.
Claims (10)
1. an indoor apparatus of air conditioner, comprise housing (10), and the heat exchanger (20) and the cross flow fan (40) that are arranged on described enclosure interior, it is characterized in that,
Described cross flow fan (40) comprises tubular wine wheel (41) and the spiral case (42) that cooperatively interacts and arrange;
Described spiral case (42) comprises the rear spiral case (42b) of second side relative with described the first side of the front snail tongue (42a) of the first side of the diffusion section (43) that forms described cross flow fan (40) and the described diffusion section of formation (43), described diffusion section (43) arranges towards the below and form air port (12) on the downside of described housing (10), has return air inlet (11) on the trailing flank of described housing and/or upper side;
Minimum clearance between described front snail tongue (42a) and described rear spiral case (42b) is D, wherein, and 40mm≤D≤75mm.
2. indoor apparatus of air conditioner according to claim 1, is characterized in that, 45mm≤D≤65mm.
3. indoor apparatus of air conditioner according to claim 1, is characterized in that,
Angle between described front snail tongue (42a) and described rear spiral case (42b) opens to the air side, forms the diffusion angle γ of described diffusion section (43), wherein, and 10 °≤γ≤40 °.
4. indoor apparatus of air conditioner according to claim 1, is characterized in that,
The minimum clearance of the described front snail tongue 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.
5. indoor apparatus of air conditioner according to claim 1, is characterized in that,
The flow inlet angle of described cross flow fan (40) is α, wherein, and 120 °≤α≤250 °;
The efflux angles of described cross flow fan (40) is β, wherein, and 110 °≤β≤240 °, and alpha+beta≤360 °.
6. indoor apparatus of air conditioner according to claim 1, is characterized in that,
Described heat exchanger (20) is two folding heat exchangers, and described two folding heat exchangers comprise interconnective the first heat exchange section and the second heat exchange section, has angle theta 1 between described the first heat exchange section and described the second heat exchange section, wherein, and 1≤150 ° of 20 °≤θ.
7. indoor apparatus of air conditioner according to claim 1, is characterized in that, described heat exchanger (20) is the many foldings heat exchanger greater than two foldings.
8. indoor apparatus of air conditioner according to claim 1, is characterized in that, is angle between the second side of described diffusion section (43) and the downside of described housing
, wherein, 30 °≤
≤ 170 °.
9. indoor apparatus of air conditioner 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 °.
10. indoor apparatus of air conditioner 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.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220646755 CN202947215U (en) | 2012-11-28 | 2012-11-28 | Indoor unit of air conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220646755 CN202947215U (en) | 2012-11-28 | 2012-11-28 | Indoor unit of air conditioner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202947215U true CN202947215U (en) | 2013-05-22 |
Family
ID=48422912
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220646755 Expired - Lifetime CN202947215U (en) | 2012-11-28 | 2012-11-28 | Indoor unit of air conditioner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202947215U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103851694A (en) * | 2012-11-28 | 2014-06-11 | 珠海格力电器股份有限公司 | Indoor unit of air conditioner |
| CN103851693A (en) * | 2012-11-28 | 2014-06-11 | 珠海格力电器股份有限公司 | Indoor unit of air conditioner |
| CN104515200A (en) * | 2013-09-27 | 2015-04-15 | 三菱电机株式会社 | Indoor machine of air adjusting device |
| CN104728944A (en) * | 2013-12-23 | 2015-06-24 | 珠海格力电器股份有限公司 | Air duct machine |
| CN104913472A (en) * | 2014-03-12 | 2015-09-16 | 格力电器（合肥）有限公司 | Volute and air conditioner with same |
-
2012
- 2012-11-28 CN CN 201220646755 patent/CN202947215U/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103851694A (en) * | 2012-11-28 | 2014-06-11 | 珠海格力电器股份有限公司 | Indoor unit of air conditioner |
| CN103851693A (en) * | 2012-11-28 | 2014-06-11 | 珠海格力电器股份有限公司 | Indoor unit of air conditioner |
| CN103851693B (en) * | 2012-11-28 | 2017-04-12 | 珠海格力电器股份有限公司 | Indoor unit of air conditioner |
| CN104515200A (en) * | 2013-09-27 | 2015-04-15 | 三菱电机株式会社 | Indoor machine of air adjusting device |
| CN104515200B (en) * | 2013-09-27 | 2019-08-20 | 三菱电机株式会社 | The indoor unit of conditioner |
| CN104728944A (en) * | 2013-12-23 | 2015-06-24 | 珠海格力电器股份有限公司 | Air duct machine |
| CN104913472A (en) * | 2014-03-12 | 2015-09-16 | 格力电器（合肥）有限公司 | Volute and air conditioner with same |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202747568U (en) | Indoor machine | |
| CN103851692A (en) | Indoor unit of air conditioner | |
| CN202947215U (en) | Indoor unit of air conditioner | |
| CN103851693B (en) | Indoor unit of air conditioner | |
| CN103851694B (en) | Indoor unit of air conditioner | |
| CN104566625B (en) | Air pipe indoor unit | |
| CN202140322U (en) | Cross-flow fan | |
| CN103851695A (en) | Indoor unit of air conditioner | |
| CN103486661B (en) | Air pipe indoor unit | |
| CN104061668B (en) | Indoor unit of air conditioner | |
| CN105485780A (en) | Indoor air conditioner | |
| CN202947218U (en) | Indoor unit of air conditioner | |
| CN103851691A (en) | Indoor unit of air conditioner | |
| CN204026943U (en) | Indoor unit of air conditioner | |
| CN202947217U (en) | Indoor unit of air conditioner | |
| CN202947216U (en) | Indoor unit of air conditioner | |
| CN202993382U (en) | Indoor unit of air conditioner | |
| CN203501326U (en) | Air pipe indoor unit | |
| CN102644973A (en) | Indoor unit of air conditioner | |
| CN104456719A (en) | Indoor unit and air conditioner comprising same | |
| CN202561910U (en) | Indoor unit of air conditioner | |
| CN202598692U (en) | Indoor unit of air conditioner | |
| CN218763732U (en) | Cold beam | |
| CN202561911U (en) | Indoor unit of air conditioner | |
| CN202561913U (en) | Indoor unit of air conditioner |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |