CN103851691A - Indoor unit of air conditioner - Google Patents
Indoor unit of air conditioner Download PDFInfo
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- CN103851691A CN103851691A CN201210501058.5A CN201210501058A CN103851691A CN 103851691 A CN103851691 A CN 103851691A CN 201210501058 A CN201210501058 A CN 201210501058A CN 103851691 A CN103851691 A CN 103851691A
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Abstract
The invention provides an indoor unit of an air conditioner, 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 heat exchanger is a double-folding heat exchanger, the double-folding heat exchanger comprises a first heat exchanging part and a second heat exchanging part which are connected with each other, and the length ratio of the first heat exchanging part to the second heat exchanging part is 0.14-1. According to the invention, the air outlet is arranged on the lower side surface, and the air return inlet is arranged on the rear side surface and/or the upper side surface, so that local ceiling of a room is realized, a large amount of ceiling space of the room is saved, air flow can be easily sent to the middle lower part of the room, the air flow circulation of the whole room is improved, and the comfort is improved. In addition, the length ratio of the double-folded heat exchanger is optimized, so that the unit size is effectively reduced, and the ceiling space of a room is further saved.
Description
Technical field
The present invention 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 to the finishing in room also more and more focus on, 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 entered side and is gone out formula concealed type indoor apparatus of air conditioner under being, 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 enters side and goes out the flow area sketch after formula concealed type indoor apparatus of air conditioner is installed under being, concealed type indoor apparatus of air conditioner enters side and goes out formula and have and only need the local furred ceiling in room under adopting, save the advantage of a large amount of room ceiling voiies, but as shown in Figure 1, the air-out of indoor apparatus of air conditioner, first arrives 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 in the time of air-conditioning heating, because hot-air density is lower, hot-air is difficult to reach middle and lower part, room, causes thermal comfort poor.
Another enters next-out concealed type indoor apparatus of air conditioner under being, return air inlet 11 and air outlet 12 are all positioned on the downside of indoor set.Fig. 2 enters the flow area sketch after next-out concealed type indoor apparatus of air conditioner is installed under being, concealed type indoor apparatus of air conditioner enters next-out tool for mounting under adopting has 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 region less, need to be arranged in room central region, therefore room needs whole whole furred ceilings, cause 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.
Summary of the invention
The present invention aims to provide a kind of indoor apparatus of air conditioner, and to solve, existing concealed type indoor apparatus of air conditioner can not meet local furred ceiling simultaneously and indoor middle and lower part heats the problem that comfortableness is good.
The invention provides a kind of indoor apparatus of air conditioner, comprise housing, and being arranged on heat exchanger and the cross flow fan of enclosure interior, the diffusion portion of cross flow fan arranges downward and form air port on the downside of housing, on the trailing flank of housing and/or upper side, is provided with return air inlet; Heat exchanger is two folding heat exchangers, and two folding heat exchangers comprise interconnective the first heat exchange portion and the second heat exchange portion, and the ratio of the length L 1 of the first heat exchange portion and the length L 2 of the second heat exchange portion is 0.14≤L1/L2≤1.
Further, the ratio of the length L 1 of the first heat exchange portion and the length L 2 of the second heat exchange portion is 0.6≤L1/L2≤1.
Further, the first heat exchange portion and the second heat exchange portion have angle theta 1, wherein, and 1≤150 ° of 20 °≤θ.
Further, cross flow fan comprises the tubular wine wheel and the spiral case that cooperatively interact and arrange; Spiral case comprises the front snail tongue of the first side and the rear spiral case of second side relative with the first side of formation diffusion portion of the diffusion portion that forms cross flow fan;
Angle between front snail tongue and rear spiral case opens to air side, forms the diffusion angle γ of diffusion portion, 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, between the second side of diffusion portion and the downside of housing, be angle
wherein,
Further, rear spiral case is ω from line and the horizontal angle in the closest approach of tubular wine wheel and the center of circle of 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 invention, 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 to the middle and lower part in room, improve the airflow circulating in whole room, thereby improve comfortableness.In addition, by the lenth ratio optimization to two folding heat exchangers, thereby effectively reduce machine packet size, further save the room ceiling void.
Brief description of the drawings
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 is used for explaining the present invention, does not form inappropriate limitation of the present invention.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 invention is returned next-out;
Fig. 4 is the perspective view according to indoor apparatus of air conditioner of the present invention;
Fig. 5 be according to indoor apparatus of air conditioner of the present invention 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 invention;
Fig. 7 a is according to the first size graph of a relation of two folding heat exchangers of indoor apparatus of air conditioner of the present invention;
Fig. 7 b is according to the second size relationship figure of two folding heat exchangers of indoor apparatus of air conditioner of the present invention;
Fig. 7 c is according to the 3rd size relationship figure of two folding heat exchangers of indoor apparatus of air conditioner of the present invention;
Fig. 7 d is according to the 4th size relationship figure of two folding heat exchangers of indoor apparatus of air conditioner of the present invention; And
Fig. 8 be according to the ω of indoor apparatus of air conditioner of the present invention, L,
position relationship schematic diagram.
Detailed description of the invention
Describe below with reference to the accompanying drawings and in conjunction with the embodiments the present invention in detail.
As shown in Fig. 3 to 6, according to indoor apparatus of air conditioner of the present invention, comprise housing 10, and be arranged on heat exchanger 20 and the cross flow fan 40 of enclosure interior, the diffusion portion 43 of cross flow fan 40 arranges downward and on the downside of housing 10, forms air port 12, is provided with return air inlet 11 on the trailing flank of housing and/or upper side; Heat exchanger 20 is two folding heat exchangers, and two folding heat exchangers comprise that the ratio of interconnective the first heat exchange portion 21 and second length L 1 of 22, the first heat exchange portions 21 of heat exchange portion and the length L 2 of the second heat exchange portion 22 is 0.14≤L1/L2≤1.The present invention 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 is positioned on trailing flank, airflow circulating as shown by the arrows in Figure 3, improves the airflow circulating in whole room, thereby improves comfortableness.In addition, by the lenth ratio optimization to two folding heat exchangers, thereby effectively reduce machine packet size, further save the room ceiling void.
Particularly, as shown in Figure 5 and Figure 6, the length L 1 of superposed the first heat exchange portion 21 is shorter, and relative first heat exchange portion 21 length L 1 of length L 2 of the second heat exchange portion 22 that are positioned at bottom are longer.In the situation that the total heat exchange area of heat exchanger 20 is constant, by regulating the lenth ratio L1/L2 of the first heat exchange portion 21 and the second heat exchange portion 22, can effectively reduce the length D of indoor apparatus of air conditioner.
Air-conditioner using a specified refrigerating capacity as 3.5kw is as testing machine, select fan blade diameter 108mm, diffusion portion angle 24 is spent, 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 two-fold heat exchanger, the total U number of two folding evaporimeters is 16 U, angle between two folding heat exchangers is 48 degree, respectively be 24 degree with horizontal plane, by adjusting the first heat exchange portion 21 of two folding evaporimeters and the lenth ratio of the second heat exchange portion 22, obtain the length D data of different indoor apparatus of air conditioner as shown in following table one:
Table one: the unit D size under different evaporators lenth ratio
| Evaporimeter lenth ratio | Unit D size (mm) |
| 0.14 | 345 |
| 0.33 | 327 |
| 0.6 | 309 |
| 1 | 291 |
From can finding out of upper table one, in order to reduce the length D of indoor apparatus of air conditioner, two folding evaporimeters more preferably lenth ratio span are 0.6 to 1.Consider for the structural strength that improves working (machining) efficiency and heat exchanger 20, heat exchanger 20 can not adopt the form of two folding splicings, and adopts the form of one bending, can reduce indoor set volume simultaneously.
As shown in Fig. 6 and Fig. 7 a to 7d, the size of indoor apparatus of air conditioner is also subject to the angle theta 1 between the first heat exchange portion 21 and the second heat exchange portion 22 of heat exchanger, and is positioned at the second heat exchange portion 22 of bottom and the impact of the angle of the downside of the housing 10 of air-conditioner.Usually, the angle theta 1 between the first heat exchange portion 21 and the second heat exchange portion 22 is larger, and the length D of air-conditioner is less, and correspondingly, height H is larger.Particularly, adopt above-mentioned testing machine, two folding heat exchangers are installed, 1≤150 ° of the 20 °≤θ of angle between adjustment two folding heat exchangers, obtains the experimental data as shown in following table two:
Table two: the experimental data under different θ 1 angles
From can finding out of table two, in the time of θ 1 angle too small, can cause 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 5 and Figure 6, cross flow fan 40 comprises the tubular wine wheel 41 and the spiral case 42 that cooperatively interact and arrange, spiral case 42 comprises the front snail tongue 42a of the first side and the rear spiral case 42b of second side relative with the first side of formation diffusion portion 43 of the diffusion portion 43 that forms cross flow fan 40, and the diffusion angle γ (i.e. the angle of the opening between front snail tongue 42a and rear spiral case 42b) of the diffusion portion 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, diffusion angle γ designs when too small, and unit air quantity is 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, also be unfavorable for that whole room forms the circulation of effective ground vapour stream, reasonably diffusion angle setting, contributes to increase air mass flow, improve air-out effect, reduce noise.
Find by a series of test, in the time of the scope of diffusion angle γ at 10 ° to 40 °, the air output of indoor apparatus of air conditioner and noise are comparatively satisfied, have good air quantity noise ratio.Air-conditioner using 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 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 three:
Table three: under different γ angles, the test data of air quantity and noise
| γ (degree) | Air quantity (cubic meter is 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, when 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, in the time that 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 6, the minimum clearance δ 1 of snail tongue 42a before the Edge Distance of tubular wine wheel 41, wherein 3mm≤δ 1≤13mm; 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 unit air-out volume simultaneously and reduces unit noise.
Air-conditioner using a specified refrigerating capacity as 3.5kw is as testing machine, select fan blade diameter 108mm, diffusion portion angle 24 is spent, 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 four: (dimensional units millimeter, air quantity unit's cubic meter is per hour, noise unit's decibel):
Table four: 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 |
Can find out from above data, when δ 1 and δ 2 are when too small, although air quantity noise is than high, 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 air quantity noise is than also obtaining preferably value.
As shown in Figure 6, the flow inlet angle (angle of the line of the line of beeline point and the center of circle of tubular wine wheel and front snail tongue beeline point on the center of circle of tubular wine wheel 41 and rear spiral case) of cross flow fan is α, the efflux angles (angle of the line of the line of the center of circle of tubular wine wheel 41 and rear spiral case beeline point and the center of circle of tubular wine wheel and front snail tongue beeline point) of cross flow fan 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 is while being some, can think alpha+beta=360 °, and usually, boundary is a little line segment, therefore 360 ° of alpha+beta <.
In the time that flow inlet angle α is too small, unit air quantity is little, and air-out volume is unstable, has whoop, and in the time that unit flow inlet angle is excessive, because efflux angles is too small, unit air quantity is low.Air-conditioner using a specified refrigerating capacity as 3.5kw is as testing machine, select fan blade diameter 108mm, diffusion portion angle 24 is spent, 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 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 five: (dimensional units millimeter, air quantity unit's cubic meter is per hour)
Table five: 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, has whoop |
| 160 | 200 | 587 | |
| 185 | 175 | 634 | |
| 190 | 170 | 628 | |
| 250 | 110 | 541 |
Can find out from the data of table five, in the time of 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 °.
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, for filling fixing drip tray or spiral case, plays insulation effect simultaneously, prevents condensation.
As Fig. 5 and 6 and Fig. 8 as shown in, rear spiral case 42b or its tangent plane can vertically arrange or be obliquely installed with the downside of housing.As shown in Figure 8, between the second side of diffusion portion 43 and the downside of housing, be angle
after, the angle of the downside of spiral case 42b or its tangent plane and housing is
usually, when unit design air-out region and return air region are during in the same area,
for acute angle, when unit return air region is with air-supply region during in zones of different,
for 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.
From the experimental result of following table six, can draw, work as angle
when too small, there is backflow phenomenon, affect heat pump performance.And work as
when too small or transition, in upper table
or
time, minimum air-supply is highly raise, the height on the perigee distance ground that wind energy enough reaches constantly increases, impact blowing effect.Highly be less than 0.2mm as index taking minimum air-supply, angle
most preferred scope is 50 ° to 150 °.
Table six: difference
air-supply situation under angle
As shown in Figure 8, rear spiral case 42b is separations for air intake and air-out from the closest approach of tubular wine wheel 41, when
one timing, the upper angle ω becoming 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 region and air-out region, in the time that ω is bigger than normal, air intake district is less than normal, unit air quantity is little, and air-out is unstable, in the time that ω is less than normal, the too small unit air quantity that causes in air-out region is little, and the span of general ω is 40 ° to 120 °.
Air-conditioner using a specified refrigerating capacity as 3.5kw is as testing machine, its fan blade diameter 108mm, 24 ° of diffusion portion angles, 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 two-fold heat exchanger, be respectively 6 diameter 5mm heat exchange U pipe 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 is 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, when ω constantly increases to the process of 120 ° from 40 °, the most high-grade air quantity first increases and then decreases of unit, when ω is during at 60 ° to 100 °, air quantity is obtained compared with the figure of merit.
As shown in Figure 8, 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, in the time that diffusion length is oversize, the diffusion pressure loss is excessive, and unit air quantity is low, and the span of general L is: 60mm≤L≤180mm.
Air-conditioner using a specified refrigerating capacity as 3.5kw is as testing machine, select fan blade diameter 98mm, 24 ° of diffusion portion 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 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 is per hour)
Table eight: 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 |
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 in the time that L is too small, can cause the unsettled problem of air-out volume.Consider, in the time of the scope of L at 98mm ~ 140mm, air quantity is obtained compared with the figure of merit.
Preferably, as shown in Figure 5, 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 electric heater unit 50 and make up the under powered problem of heat exchanger 20.
As can be seen from the above description, the above embodiments of the present invention have realized following technique effect:
According to indoor apparatus of air conditioner of the present invention, 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 to the middle and lower part in room, improve the airflow circulating in whole room, thereby improve comfortableness.In addition, by the lenth ratio optimization to two folding heat exchangers, thereby effectively reduce machine packet size, further save the room ceiling void.
These are 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 amendment of doing, be equal to replacement, improvement etc., within all should being included in protection scope of the present invention.
Claims (9)
1. an indoor apparatus of air conditioner, comprises housing (10), and is arranged on heat exchanger (20) and the cross flow fan (40) of described enclosure interior, it is characterized in that,
The diffusion portion (43) of described cross flow fan (40) arranges downward and on the downside of described housing (10), forms air port (12), is provided with return air inlet (11) on the trailing flank of described housing and/or upper side;
Described heat exchanger (20) is two folding heat exchangers, described two folding heat exchangers comprise interconnective the first heat exchange portion (21) and the second heat exchange portion (22), and the length L 1 of described the first heat exchange portion (21) is 0.14≤L1/L2≤1 with the ratio of the length L 2 of described the second heat exchange portion (22).
2. indoor apparatus of air conditioner according to claim 1, is characterized in that,
The length L 1 of described the first heat exchange portion (21) is 0.6≤L1/L2≤1 with the ratio of the length L 2 of described the second heat exchange portion (22).
3. indoor apparatus of air conditioner according to claim 1, is characterized in that,
Described the first heat exchange portion (21) and described the second heat exchange portion (22) have angle theta 1, wherein, and 1≤150 ° of 20 °≤θ.
4. airduct indoor set according to claim 1, is characterized in that,
Described cross flow fan (40) comprises the tubular wine wheel (41) and the spiral case (42) that cooperatively interact and arrange;
Described spiral case (42) comprises the front snail tongue (42a) of the first side and the rear spiral case (42b) of second side relative with described the first side of the described diffusion portion of formation (43) of the diffusion portion (43) that forms described cross flow fan (40);
Angle between described front snail tongue (42a) and described rear spiral case (42b) opens to air side, forms the diffusion angle γ of described diffusion portion (43), wherein, and 10 °≤γ≤40 °.
5. indoor apparatus of air conditioner according to claim 4, is characterized in that,
Before described in the Edge Distance of described tubular wine wheel (41), the minimum clearance of snail tongue (42a) is δ 1, wherein 3mm≤δ 1≤13mm;
After described in the Edge Distance of described tubular wine wheel (41), the minimum clearance of spiral case (42b) is δ 2, wherein 3mm≤δ 2≤15mm.
6. indoor apparatus of air conditioner according to claim 4, 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 °.
7. indoor apparatus of air conditioner according to claim 4, is characterized in that,
Between the second side of described diffusion portion (43) and the downside of described housing, be angle
wherein,
8. indoor apparatus of air conditioner according to claim 4, is characterized in that,
Described rear spiral case (42b) is ω from line and the horizontal angle in the closest approach of described tubular wine wheel (41) and the center of circle of described tubular wine wheel (41), wherein, and 40 °≤ω≤120 °.
9. indoor apparatus of air conditioner according to claim 4, 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.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107490064A (en) * | 2017-08-25 | 2017-12-19 | 重庆凌达压缩机有限公司 | Indoor set and air-conditioning system |
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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 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107490064A (en) * | 2017-08-25 | 2017-12-19 | 重庆凌达压缩机有限公司 | Indoor set and air-conditioning system |
| CN107490064B (en) * | 2017-08-25 | 2023-11-07 | 格力电器（武汉）有限公司 | Indoor unit and air conditioning system |
| CN107856494A (en) * | 2017-10-20 | 2018-03-30 | 珠海格力电器股份有限公司 | Vehicle with a steering wheel |
| CN107856494B (en) * | 2017-10-20 | 2024-05-03 | 珠海格力电器股份有限公司 | Vehicle with a vehicle body having a vehicle body support |
| CN109307322A (en) * | 2018-11-19 | 2019-02-05 | 广东美的制冷设备有限公司 | Air conditioner indoor unit and air conditioner |
| CN109307322B (en) * | 2018-11-19 | 2023-04-25 | 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 |
| CN113757808B (en) * | 2020-06-01 | 2022-10-28 | 广东美的暖通设备有限公司 | Air duct type air conditioner |
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