CN103486711B - Indoor machine - Google Patents
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- CN103486711B CN103486711B CN201210343862.5A CN201210343862A CN103486711B CN 103486711 B CN103486711 B CN 103486711B CN 201210343862 A CN201210343862 A CN 201210343862A CN 103486711 B CN103486711 B CN 103486711B
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- 238000009792 diffusion process Methods 0.000 claims abstract description 41
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- 108700041286 delta Proteins 0.000 description 13
- 238000013461 design Methods 0.000 description 9
- 238000001816 cooling Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 5
- 241000237858 Gastropoda Species 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 238000004378 air conditioning Methods 0.000 description 3
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- 238000010168 coupling process Methods 0.000 description 3
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- 230000007423 decrease Effects 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
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- 238000005452 bending Methods 0.000 description 1
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- Air Filters, Heat-Exchange Apparatuses, And Housings Of Air-Conditioning Units (AREA)
- Air-Conditioning Room Units, And Self-Contained Units In General (AREA)
Abstract
The invention provides an indoor unit, which comprises a shell, wherein a fan is fixedly arranged in the shell, a heat exchanger is arranged on the air inlet side of the fan, an air return port and an air outlet which are respectively positioned on two sides of the heat exchanger are arranged on the shell, the air return port is arranged on the rear side surface, or the upper side surface of the shell, or is simultaneously arranged on the rear side surface and the upper side surface of the shell, the fan is a cross-flow fan, and a diffusion part of the cross-flow fan is arranged downwards; the cross-flow fan comprises a cross-flow wind wheel and a volute which are matched with each other, and the volute is matched and arranged in the shell; the volute comprises a front volute forming a first side face of the diffusion part and a rear volute forming a second side face of the diffusion part, and the included angle between the connecting line of the closest point of the rear volute to the cross-flow wind wheel and the circle center of the cross-flow wind wheel and the horizontal line is omega, wherein omega is more than or equal to 40 degrees and less than or equal to 120 degrees. The invention optimizes the included angle between the connecting line of the nearest point of the rear volute from the cross-flow wind wheel and the circle center of the cross-flow wind wheel and the horizontal line, balances the air inlet area and the air outlet area and improves the air outlet quantity.
Description
Technical field
The present invention relates to field of air conditioning, in particular to a kind of indoor set.
Background technology
Household small-size indoor set on the market at present（Taking air pipe indoor machine as a example）For set structure, as shown in Figure 1 to Figure 4
Shown, main inclusion housing 10, it is fixedly installed heat exchanger 20 inside housing 10, the lower section of heat exchanger 20 is provided with drip tray
30, the side of heat exchanger 20 is provided with blower fan 40, and housing 10 is provided with the return air inlet 11 positioned at heat exchanger 20 both sides and air-out
Mouth 12.For the mode of air current composition, mainly there are several forms as follows：
Side is sent next time, and as depicted in figs. 1 and 2, the return air inlet 11 of indoor set designs machine unit bottom indoors, indoor set
Air outlet 12 designs machine unit side indoors, return air, air-out all can air duct or be flexible coupling, form side and send air-flow group next time
Knit loop.
Side is returned after sending, or side is sent next time, and as shown in Figure 3 and Figure 4, the return air inlet 11 of indoor set designs machine unit indoors
Rear portion, the air outlet 12 of indoor set designs machine unit side indoors, and return air is connected to unit rear portion by airduct, air-out can connect
Airduct or be flexible coupling, forms the air current composition loop gone back to after side is sent, or air-out can air duct or be flexible coupling be turned downwards, forms side
Send form next time.
Can be seen that the household small-size indoor machine structure of current industry from above indoor machine structure, air current composition mode
Although various informative, for actual installing and using, form is single, and the air outlet 12 of unit is all disposed within shell
The side of body, and actually used during, be typically necessary air-out direction downwards, be so accomplished by installing airduct, cause to install
Trouble, is additionally, since the presence of airduct, causes to heat that comfortableness is poor, the relatively small problem of air output.
Content of the invention
The present invention is intended to provide the indoor set of a kind of downward air-out and raising air quantity, heated with solving the air-out of indoor set side
Comfortableness is poor, and the problem that air quantity is relatively small.
The invention provides a kind of indoor set, including housing, enclosure interior is fixedly installed blower fan, the inlet side setting of blower fan
There is heat exchanger, housing is provided with return air inlet and the air outlet being located at heat exchanger both sides respectively, after return air inlet is arranged on housing
On side or on upper side or be simultaneously located on the trailing flank and upper side of housing, blower fan is cross flow fan, through-flow wind
The diffusion portion of machine is arranged downward；Cross flow fan includes cooperating the tubular wine wheel of setting and spiral case, and spiral case is equipped with
In enclosure interior；Spiral case includes forming the front spiral case of diffusion portion first side and the rear spiral case forming diffusion portion second side, after
Spiral case is ω from the closest approach of tubular wine wheel and the line in the center of circle of tubular wine wheel with horizontal angle, wherein, 40 °≤ω≤
120°.
Further, 60 °≤ω≤100 °.
Further, the air outlet vertical distance on the downside of housing for the center of circle of tubular wine wheel is L, wherein, 60mm
≤L≤180mm.
Further, 98mm≤L≤140mm.
Further, it is in included angle between the outer contour in diffusion portion and the downside of housing, wherein, 30 °≤φ≤
170°.
Further, 50 °≤φ≤150 °.
Further, the angle between front spiral case and rear spiral case opens to air side, forms the diffusion angle γ in diffusion portion, its
In, 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, wherein 3mm≤δ 1≤13mm；Pass through
After the Edge Distance of stream wind wheel, the minimum clearance of spiral case is δ 2, wherein 3mm≤δ 2≤15mm.
Further, 5mm≤δ 1≤8mm；4mm≤δ2≤9mm.
Further, the flow inlet angle of cross flow fan is α, wherein, 120 °≤α≤250 °；The efflux angles of cross flow fan is β,
Wherein, 110 °≤β≤240 °, and alpha+beta≤360 °.
Further, 160 °≤α≤190 °；170°≤β≤200°.
Further, the lower section of heat exchanger is provided with drip tray, is provided with thermal insulating filler between drip tray and housing；Snail
It is provided with thermal insulating filler between shell and housing.
Further, return air inlet includes the rear return air inlet being arranged on housing trailing flank and is arranged on the upper side of housing
Upper return air inlet；Indoor set also includes the return air cover plate being arranged on housing, and return air cover plate has and covers return air inlet and make interior
Machine is from the primary importance of rear return air inlet return air；Make indoor set with covering rear return air inlet from the second place of upper return air inlet return air；
And open the 3rd position making indoor set from upper return air inlet and rear return air inlet return air simultaneously.
Further, it is provided with electric heater unit between heat exchanger and blower fan.
Further, indoor set is air pipe indoor machine.
According to the indoor set of the present invention, by arranging downward the diffusion portion of blower fan, such that it is able to air outlet is set
Put on the downside of housing, make the air-out direction of indoor set directly down, efficiently solving general room machine needs to install
Airduct just can make the downward problem of air-out direction, and improves air-out efficiency and the comfortableness heating；And by rear snail
Shell is optimized with the line in the center of circle of tubular wine wheel and horizontal angle from the closest approach of tubular wine wheel, thus balancing blower fan
Air intake region and air-out region, improve air output, thus improving the efficiency of indoor set.And return air inlet has multiple setting sides
Formula, thus the return air demand under meeting different situations.
Brief description
The accompanying drawing constituting the part of the application is used for providing a further understanding of the present invention, the schematic reality of the present invention
Apply example and its illustrate, for explaining the present invention, not constituting inappropriate limitation of the present invention.In the accompanying drawings：
Fig. 1 is the first structural representation of the indoor set according to prior art；
Fig. 2 is the second structural representation of the indoor set according to prior art；
Fig. 3 is the third structural representation of the indoor set according to prior art；
Fig. 4 is the 4th kind of structural representation of the indoor set according to prior art；
Fig. 5 is the perspective view of the indoor set according to the present invention；
Fig. 6 is the cross section structure diagram of the indoor set according to the present invention；
Fig. 7 is the correlation schematic diagram between each part of the indoor set according to the present invention；
Fig. 8 is the heat exchanger of the indoor set according to the present invention is single structural representation rolling over heat exchanger；
Fig. 9 is the heat exchanger of the indoor set according to the present invention is the first structure schematic diagram rolling over heat exchanger more；
Figure 10 is the heat exchanger of the indoor set according to the present invention is the second structural representation rolling over heat exchanger more；
Figure 11 is ω, L, φ position relationship schematic diagram of the indoor set according to the present invention；And
Figure 12 is the schematic diagram of return air cap locations the 3rd position of the indoor set according to the present invention.
Specific embodiment
To describe the present invention below with reference to the accompanying drawings and in conjunction with the embodiments in detail.
As shown in Fig. 5 and 6 and Figure 11, according to the indoor set of the present invention（Taking air pipe indoor machine as a example）, including housing 10,
Blower fan 40 is fixedly installed, the inlet side of blower fan 40 is provided with heat exchanger 20, housing 10 is provided with and is located at respectively inside housing 10
The return air inlet 11 of heat exchanger 20 both sides and air outlet 12, return air inlet 11 is arranged on the trailing flank of housing 10 or on upper side
Or it is simultaneously located on the trailing flank and upper side of housing 10, blower fan 40 is cross flow fan, the court of diffusion portion 43 of cross flow fan
Arrange downwards；Cross flow fan includes cooperating the tubular wine wheel 41 of setting and spiral case 42, and spiral case 42 is equipped with housing
Inside 10；Spiral case 42 includes forming the front spiral case 42a of diffusion portion 43 first side and the rear snail forming diffusion portion 43 second side
Shell 42b, rear spiral case 42b from the closest approach of tubular wine wheel 41 with the line in the center of circle of tubular wine wheel 41 and horizontal angle are
ω, wherein, 40 °≤ω≤120 °.According to the indoor set of the present invention, by the diffusion portion 43 of blower fan 40 is arranged downward,
Such that it is able to be arranged on air outlet 12 on the downside of housing 10, make the air-out direction of indoor set directly down, effectively solve
General room of having determined machine needs to install airduct and just can make the downward problem of air-out direction, and improves air-out efficiency and heat
Comfortableness；And by the line in the center of circle from closest approach and the tubular wine wheel 41 of tubular wine wheel 41 and level to rear spiral case 42b
The angle of line is optimized, thus balancing air intake region and the air-out region of blower fan, improves air output, thus improving indoor set
Efficiency.And return air inlet has multiple set-up modes, thus the return air demand under meeting different situations.
As shown in fig. 6, the diffusion portion 43 of blower fan 40 is arranged downward, so from blower fan 40 blowout wind directly down from
The air outlet 12 of indoor set blows out downwards, without changing wind direction, improves the efficiency of blower fan.Blower fan 40 is cross flow fan, including phase
The tubular wine wheel 41 being mutually equipped with and spiral case 42, spiral case 42 is equipped with inside housing 10, and the opening direction of spiral case 42
Lower section setting, that is, the diffusion portion of cross flow fan is arranged downward.Spiral case 42 includes front spiral case 42a and rear spiral case 42b, front spiral case
Form the diffusion portion 43 arranging downward between 42a and rear spiral case 42b so that from air outlet blowout air-flow directly to
Under.
As shown in figure 11, rear spiral case 42b from tubular wine wheel 41 closest approach be air intake and air-out a separation, work as expansion
It is in angle one timing between the downside of the outer contour of splenium 43 and housing 10, nearest from tubular wine wheel 41 on rear spiral case 42b
Angle ω that point is become with line and the horizontal line in tubular wine wheel 41 center of circle controls air intake region and the ratio in air-out region, works as ω
When bigger than normal, air intake area is less than normal, and unit air quantity is little, and air-out is unstable, and when ω is less than normal, air-out region is too small to lead to unit air quantity
Little, the span of general ω is 40 ° to 120 °
Air-conditioner using a rated cooling capacity as 3.5kw as testing machine, its fan blade diameter 108mm, diffusion portion angle
24 ° of tubular wine wheels 41 and front spiral case gap delta 1=6mm, tubular wine wheel 41 and rear spiral case gap delta 2=5mm, using two-fold heat exchanger,
It is 6 diameter 5mm heat exchange U pipes and 10 diameter 5mm heat exchange U pipes respectively, using different ω angles, operate in highest in air-conditioner
During shelves, the test data of air quantity is as shown in following table one：（Angular unit degree, air quantity unit cubic meters are per hour）
Table one：The experimental data of the air quantity under different ω angles
| ω | The most high-grade air quantity of unit |
| 40 | 546 |
| 60 | 582 |
| 80 | 628 |
| 100 | 623 |
| 120 | 575 |
Can draw from the data of upper table one, during ω constantly increases to 120 ° from 40 °, the most high-grade air quantity of unit
First increases and then decreases, when ω is at 60 ° to 100 °, air quantity obtains compared with the figure of merit.
As shown in fig. 7, the diffusion angle γ in diffusion portion 43（The i.e. angle of the opening between front spiral case 42a and rear spiral case 42b）
For 10 °≤γ≤40 °.For the air-out diffusion angle γ of indoor apparatus of air conditioner, when diffusion angle γ design is too small, 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 big, when that is, the air outlet of unit is too big, goes out
Wind velocity is too low, and the air quantity of unit also reduces to a certain extent, rational diffusion angle setting, contributes to increasing air mass flow,
Improve air-out effect, reduce noise.
Found by a series of test, when diffusion angle γ is in 10 ° to 40 ° of scope, the air output of indoor apparatus of air conditioner
More satisfied with noise, there is preferable air quantity noise ratio.Air-conditioner using a rated cooling capacity as 3.5kw 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, enter
Air horn α=184 °, angle beta=176 ° of giving vent to anger, using two-fold heat exchanger, are that the heat exchange U of 6 a diameter of 5mm manages and 10 diameters respectively
5mm heat exchange U manages, using different γ angles, when air-conditioner operates in the most high-grade, air quantity and noise test data such as following table two institute
Show：
Table two：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 it should be apparent that during diffusion angle γ constantly increases, air quantity and noise are equal
Assume the trend of first increases and then decreases it is also possible to draw, when diffusion angle γ selects 18 ° to 28 ° of preferred scope, air conditioning chamber
The air quantity of interior machine has larger lifting, and its air quantity noise ratio is also higher.
As shown in fig. 7, before the Edge Distance of tubular wine wheel 41 spiral case 42a minimum clearance δ 1, wherein 3mm≤δ 1≤
13mm；Minimum clearance δ 2 of spiral case 42b, wherein 3mm≤δ 2≤15mm after the Edge Distance of tubular wine wheel 41.So arrange not only
The size of indoor set can be reduced, increase unit air-out volume simultaneously and reduce unit noise.
As testing machine, from fan blade diameter 108mm, diffusion portion presss from both sides air-conditioner using a rated cooling capacity as 3.5kw
24 degree of angle, flow inlet angle α=184 °, angle beta=176 ° of giving vent to anger, using three folding heat exchangers, are 4,5,6 diameter 5mm heat exchange U pipes respectively,
Adjust δ 1 and δ 2 height, when air-conditioner operates in the most high-grade, air quantity and noise test data are as shown in following table three：（Size list
Position millimeter, air quantity unit cubic meters per hour, noise unit decibel）：
Table three：Under different δ 1 and δ 2, the test data of air quantity and noise
| δ1 | δ2 | Unit sectional dimension（Fan blade is 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 be seen that when δ 1 and δ 2 is too small although air quantity noise ratio from above data, but its noise be also larger,
It is not most preferred scheme, contrast data above is it can be seen that work as 5mm≤δ 1≤8mm, 4mm≤δ 2≤9mm, air quantity and noise
Can be in more preferably scope, air quantity noise ratio also obtains and is preferably worth.
The flow inlet angle of cross flow fan（On the center of circle of tubular wine wheel 41 and rear spiral case the point of short distance arrive tubular wine wheel the center of circle and
The angle of the front spiral case point of short distance）For α, the efflux angles of cross flow fan（The center of circle of the tubular wine wheel 41 and drain pan point of short distance is to passing through
The center of circle of stream wind wheel and the angle at the shortest strong point of front spiral case）For β, flow inlet angle α and give vent to anger angle beta, usually, 120 °≤α≤250 °；
110°≤β≤240°.Flow inlet angle α and angle beta sum of giving vent to anger are less than or equal to 360 degree, when flow inlet angle α and angle beta of giving vent to anger
When boundary is some it is believed that alpha+beta=360 °, usually, boundary is a little line segment, therefore 360 ° of alpha+beta ＜.
When flow inlet angle α is too small, unit air quantity is little, and air-out volume is unstable, has whoop, when unit flow inlet angle is excessive
When, because efflux angles is too small, unit air quantity is low.Air-conditioner using a rated cooling capacity as 3.5kw as testing machine, from wind
Leaf diameter 108mm, 24 degree of diffusion portion angle, tubular wine wheel 41 and front spiral case gap delta 1=6mm, between tubular wine wheel 41 and rear spiral case
Gap δ 2=5mm, using two-fold heat exchanger, wind is not 6 diameter 5mm heat exchange U pipes and 10 diameter 5mm heat exchange U pipes, using difference
α, β angle, when air-conditioner operates in the most high-grade, air quantity and noise test data are as shown in following table four：（Dimensional units millimeter,
Air quantity unit cubic meters are per hour）
Table four：Under different α and β, the test data of air quantity and noise
| α | β | Air quantity | Other problemses |
| 120 | 240 | 522 | Air-out volume is unstable, has whoop |
| 160 | 200 | 587 | |
| 185 | 175 | 634 | |
| 190 | 170 | 628 | |
| 250 | 110 | 541 |
When the data of table four can be seen that when α angle too small, lead to air quantity little, and air-out is unstable, and β is too small
When, also lead to air quantity little, comparative analysis data above it can be deduced that, flow inlet angle α and give vent to anger that more preferably scope is angle beta, 160 °
≤ α≤190 °, 170 °≤β≤200 °.
The lower section of heat exchanger 20 is provided with drip tray 30, is provided with thermal insulating filler 60 between drip tray 30 and housing 10,
It is provided with thermal insulating filler 60 between spiral case 42 and housing 10.Preferably, thermal insulating filler 60 is sponge or foam, is used for filling out
Fill fixing drip tray or spiral case, play insulation effect simultaneously, prevent condensation.
As shown in Figs. 5 to 7, heat exchanger 20 can be two foldings, according to ceiling height universal at present, depth, from two foldings
Heat exchanger can effectively reduce unit three-dimensional dimension, between upper and lower two folding heat exchangers, angle is 1≤150 ° of 1,20 °≤θ of θ.
For improving working (machining) efficiency and the consideration of heat exchanger structure intensity, heat exchanger in the form of two foldings splicings, and can not adopt one
The form of body bending, can reduce indoor set volume simultaneously.
Using above-mentioned testing machine, two folding heat exchangers, the angle between adjustment two folding heat exchangers are installed, obtain as following table five
Shown experimental data：
Table five：Experimental data under different θ 1 angles
From table five as can be seen that during when θ 1 angle too small, heat exchanger impeded drainage can be led to, return air inlet is too little, unit
A series of problems, such as air quantity is little, the preferably span of θ 1 are 35 to 100 °.
As shown in figure 8, heat exchanger 20 can also be single folding heat exchanger, single folding heat exchanger is arranged with horizontal plane.As Fig. 9
With shown in 10, heat exchanger 20, it can also be provided that being more than many foldings heat exchanger of two foldings, rolls over two foldings of the arbitrary neighborhood of heat exchanger more
Between there is 2≤180 ° of 0 °≤θ of angle, 2≤179 ° of preferably 1 °≤θ, thus to blower fan formed semi-surrounding structure, make heat exchanger
Evenly wind-engaging, improves heat exchange efficiency.When heat exchanger is more than two folding settings, for the consideration of maximal efficiency and utilization space,
In conjunction with current existing process, heat exchanger at most may be designed to 6 foldings.In any of the above heat exchanger setting form, in order to ensure machine
The exchange capability of heat of group, heat exchanger section U pipe number sum is 12 to 24, preferably 13 to 18.
As shown in figure 11, in order that air circulation more rationally and meet different air-supply area requirement, diffusion portion 43 both sides
Front spiral case 42a and rear spiral case 42b may be configured as curved surface, the angle of the two tangent plane is γ, simultaneously for expanding blowing area, after
The downside of spiral case 42b or its tangent plane and housing can be vertically arranged or be obliquely installed.As shown in figure 11, rear spiral case 42b
Or its tangent plane is φ with the downside of housing.Usually, when unit design air-out region and return air region are in the same area
When, φ is acute angle, and when unit return air region and air-supply region are in zones of different, φ is obtuse angle.Preferably span is
30 to 170 degree.With above-mentioned testing machine, when 2.5 meters of hoisting height, the most high-grade air quantity be 634 cubic metres per hour, adjusting angle
Degree φ, obtains the experimental result as shown in following table six.
Can draw when angle φ is too small, there is backflow phenomenon, affect air-conditioning from the experimental result of following table six
Energy.And when φ is too small or during transition, that is, in upper table during 30 ° or φ ＞ 170 ° of φ ＜, so that minimum air-supply height is raised, that is,
The height on the perigee distance ground that wind energy enough reaches constantly increases, and affects airflow effects.0.2mm is less than with minimum air-supply height
For index, the most preferred scope of angle φ is 50 ° to 150 °.
Table six：Air-supply situation under different φ angles
As shown in figure 11, tubular wine wheel 41 center of circle is to the expansion that directly control unit apart from L of the bottom of air outlet 12
Pressure length, when diffusion length is too in short-term it is impossible to form stable air-out, and air-out volume is low, and is easily accessible tubular wine wheel 41
Stall zone, when 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 rated cooling capacity as 3.5kw as testing machine, from fan blade diameter 98mm, diffusion portion angle
24 degree, flow inlet angle α=184 degree, angle beta=176 degree of giving vent to anger, tubular wine wheel 41 and front spiral case gap delta 1=6mm, tubular wine wheel 41 with after
Spiral case gap delta 2=5mm, using two-fold heat exchanger, wind is not 6 diameter 5mm heat exchange U pipes and 10 diameter 5mm heat exchange U pipes, adopts
With different L, when air-conditioner operates in the most high-grade, the test data of air quantity is as shown in following table seven：（Long measure is millimeter,
Air quantity unit cubic meters are 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 |
Can draw from the data of upper table seven, during L constantly increases to 180mm from 60mm, the most high-grade wind of unit
Amount first increases and then decreases, and when L is too small, the unstable problem of air-out volume can be led to.Consider, when L in 98mm extremely
During the scope of 140mm, air quantity obtains compared with the figure of merit.
Preferably, as shown in figure 12, the return air inlet 11 of indoor set includes the rear return air inlet being arranged on housing 10 trailing flank
11a and be arranged on housing 10 upper side upper return air inlet 11b；Indoor set also includes arranging return air cover plate on the housing 10
13, return air cover plate 13 has and covers return air inlet 11b and make indoor set from the primary importance of rear return air inlet 11a return air；With cover
Return air inlet 11a makes indoor set from the second place of upper return air inlet 11b return air afterwards；And open and make indoor set from upper return air inlet
3rd position of 11b and rear return air inlet 11a return air simultaneously.By the setting of return air cover plate 13, thus realizing multiple return air forms.
Cover rear return air inlet 11a and to cover the return air cover plate of return air inlet 11b can be two independent parts, from improving leading to of part
With property and cost-effective from the point of view of, by cover rear return air inlet 11a and cover upper return air inlet 11b return air deck design be one
Individual general part, that is, return air cover plate 13 both can cover rear return air inlet 11a it is also possible to cover return air inlet 11b.
Preferably, as shown in fig. 6, being provided with electric heater unit 50 between heat exchanger 20 and blower fan 40, when heat exchanger 20 not
When can meet heating needs, the under powered problem that electric heater unit 50 makes up heat exchanger 20 can be started.
Preferably, aforementioned indoor set is air pipe indoor machine, adopts aforesaid design, Neng Gougeng on air pipe indoor machine field
Effectively improve air pipe indoor machine efficiency and comfortableness.
As can be seen from the above description, the above embodiments of the present invention achieve following technique effect：
According to the indoor set of the present invention, by arranging downward the diffusion portion of blower fan, such that it is able to air outlet is set
Put on the downside of housing, make the air-out direction of indoor set directly down, efficiently solving general room machine needs to install
Airduct just can make the downward problem of air-out direction, and improves air-out efficiency and the comfortableness heating；And by rear snail
Shell is optimized with the line in the center of circle of tubular wine wheel and horizontal angle from the closest approach of tubular wine wheel, thus balancing blower fan
Air intake region and air-out region, improve air output, thus improving the efficiency of indoor set.And return air inlet has multiple setting sides
Formula, thus the return air demand under meeting different situations.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for the skill of this area
For art personnel, the present invention can have various modifications and variations.All within the spirit and principles in the present invention, made any repair
Change, equivalent, improvement etc., should be included within the scope of the present invention.
Claims (15)
1. a kind of indoor set, including housing (10), is fixedly installed blower fan (40) inside described housing (10), described blower fan (40)
Inlet side is provided with heat exchanger (20), and described housing (10) is provided with the return air inlet being located at described heat exchanger (20) both sides respectively
(11) and air outlet (12) it is characterised in that
Described return air inlet (11) is arranged on the trailing flank of described housing (10) or on upper side or is simultaneously located at described
On the trailing flank and upper side of housing (10), described air outlet (12) is arranged on the downside of described housing (10)；
Described blower fan (40) is cross flow fan, and the diffusion portion (43) of described cross flow fan is arranged downward；
Described cross flow fan includes cooperating the tubular wine wheel (41) of setting and spiral case (42), and described spiral case (42) is equipped with
Internal in described housing (10)；
Described spiral case (42) includes forming the front spiral case (42a) of described diffusion portion (43) first side and forms described diffusion portion
(43) the rear spiral case (42b) of second side, described rear spiral case (42b) is from closest approach and the described through-flow of described tubular wine wheel (41)
The line in the center of circle of wind wheel (41) and horizontal angle are ω, wherein, 40 °≤ω≤120 °, described tubular wine wheel (41)
Before Edge Distance, the minimum clearance of spiral case (42a) is δ 1, wherein 3mm≤δ 1≤13mm, the edge of described tubular wine wheel (41) away from
It is δ 2, wherein 3mm≤δ 2≤15mm from the minimum clearance of rear spiral case (42b).
2. indoor set according to claim 1 is it is characterised in that 60 °≤ω≤100 °.
3. indoor set according to claim 1 it is characterised in that
Described air outlet (12) vertical distance on the downside of described housing (10) for the center of circle of described tubular wine wheel (41) is
L, wherein, 60mm≤L≤180mm.
4. indoor set according to claim 3 is it is characterised in that 98mm≤L≤140mm.
5. indoor set according to claim 3 is it is characterised in that under the outer contour in described diffusion portion and described housing
It is in included angle, wherein, 30 °≤φ≤170 ° between side.
6. indoor set according to claim 5 is it is characterised in that 50 °≤φ≤150 °.
7. indoor set according to claim 3 it is characterised in that
Angle between described front spiral case (42a) and described rear spiral case (42b) opens to air side, forms described diffusion portion (43)
Diffusion angle γ, wherein, 10 °≤γ≤40 °.
8. indoor set according to claim 7 is it is characterised in that 18 °≤γ≤28 °.
9. indoor set according to claim 1 it is characterised in that
5mm≤δ1≤8mm；
4mm≤δ2≤9mm.
10. indoor set according to claim 3 it is characterised in that
The flow inlet angle of described cross flow fan is α, wherein, 120 °≤α≤250 °；
The efflux angles of described cross flow fan is β, wherein, 110 °≤β≤240 °, and alpha+beta≤360 °.
11. indoor sets according to claim 10 it is characterised in that
160°≤α≤190°；
170°≤β≤200°.
12. indoor sets according to claim 1 it is characterised in that
The lower section of described heat exchanger (20) is provided with drip tray (30), arranges between described drip tray (30) and described housing (10)
There is thermal insulating filler (60)；
It is provided with thermal insulating filler (60) between described spiral case (42) and described housing (10).
13. indoor sets according to claim 1 it is characterised in that
Described return air inlet (11) includes the rear return air inlet (11a) being arranged on described housing (10) trailing flank and is arranged on described shell
The upper return air inlet (11b) of the upper side of body (10)；
Described indoor set also includes the return air cover plate (13) being arranged on described housing (10), and described return air cover plate (13) has lid
Residence is stated return air inlet (11b) and is made described indoor set from the primary importance of described rear return air inlet (11a) return air；Described with covering
Return air inlet (11a) makes described indoor set from the second place of described upper return air inlet (11b) return air afterwards；And open and make described room
Interior machine is from the 3rd position of described upper return air inlet (11b) and described rear return air inlet (11a) return air simultaneously.
14. indoor sets according to claim 1 are it is characterised in that between described heat exchanger (20) and described blower fan (40)
It is provided with electric heater unit (50).
15. indoor sets according to any one of claim 1 to 14 are it is characterised in that described indoor set is airduct interior
Machine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210343862.5A CN103486711B (en) | 2012-06-13 | 2012-09-14 | Indoor machine |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220278576.0 | 2012-06-13 | ||
| CN201220278576 | 2012-06-13 | ||
| CN2012202785760 | 2012-06-13 | ||
| CN201210343862.5A CN103486711B (en) | 2012-06-13 | 2012-09-14 | Indoor machine |
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| CN103486711A CN103486711A (en) | 2014-01-01 |
| CN103486711B true CN103486711B (en) | 2017-02-08 |
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| CN201220472905.5U Expired - Lifetime CN202747568U (en) | 2012-06-13 | 2012-09-14 | Indoor machine |
| CN201210343962.8A Pending CN103486666A (en) | 2012-06-13 | 2012-09-14 | Indoor machine |
| CN201210343951.XA Pending CN103486665A (en) | 2012-06-13 | 2012-09-14 | Indoor machine |
| CN 201220474790 Expired - Lifetime CN202747485U (en) | 2012-06-13 | 2012-09-14 | Indoor machine |
| CN 201220475073 Expired - Lifetime CN202747571U (en) | 2012-06-13 | 2012-09-14 | Indoor machine |
| CN 201220472888 Expired - Lifetime CN202747482U (en) | 2012-06-13 | 2012-09-14 | Indoor machine |
| CN201210345174.2A Active CN103486668B (en) | 2012-06-13 | 2012-09-14 | Indoor machine |
| CN201210345426.1A Active CN103486712B (en) | 2012-06-13 | 2012-09-14 | Indoor machine |
| CN201210345112.1A Active CN103486667B (en) | 2012-06-13 | 2012-09-14 | Indoor machine |
| CN 201220475107 Expired - Lifetime CN202747572U (en) | 2012-06-13 | 2012-09-14 | Indoor machine |
| CN201210343862.5A Active CN103486711B (en) | 2012-06-13 | 2012-09-14 | Indoor machine |
| CN201220473020.7U Expired - Lifetime CN202747483U (en) | 2012-06-13 | 2012-09-14 | Indoor machine |
| CN201210343881.8A Active CN103486664B (en) | 2012-06-13 | 2012-09-14 | Indoor machine |
| CN201220473038.7U Expired - Lifetime CN202747569U (en) | 2012-06-13 | 2012-09-14 | Indoor machine |
| CN201220474700.0U Expired - Lifetime CN202747570U (en) | 2012-06-13 | 2012-09-14 | Indoor machine |
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| CN201220472905.5U Expired - Lifetime CN202747568U (en) | 2012-06-13 | 2012-09-14 | Indoor machine |
| CN201210343962.8A Pending CN103486666A (en) | 2012-06-13 | 2012-09-14 | Indoor machine |
| CN201210343951.XA Pending CN103486665A (en) | 2012-06-13 | 2012-09-14 | Indoor machine |
| CN 201220474790 Expired - Lifetime CN202747485U (en) | 2012-06-13 | 2012-09-14 | Indoor machine |
| CN 201220475073 Expired - Lifetime CN202747571U (en) | 2012-06-13 | 2012-09-14 | Indoor machine |
| CN 201220472888 Expired - Lifetime CN202747482U (en) | 2012-06-13 | 2012-09-14 | Indoor machine |
| CN201210345174.2A Active CN103486668B (en) | 2012-06-13 | 2012-09-14 | Indoor machine |
| CN201210345426.1A Active CN103486712B (en) | 2012-06-13 | 2012-09-14 | Indoor machine |
| CN201210345112.1A Active CN103486667B (en) | 2012-06-13 | 2012-09-14 | Indoor machine |
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| CN201220473038.7U Expired - Lifetime CN202747569U (en) | 2012-06-13 | 2012-09-14 | Indoor machine |
| CN201220474700.0U Expired - Lifetime CN202747570U (en) | 2012-06-13 | 2012-09-14 | Indoor machine |
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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 machine |
| 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 |
| CN104566626B (en) * | 2013-10-12 | 2018-05-15 | 珠海格力电器股份有限公司 | Air duct machine |
| CN104566629B (en) * | 2013-10-23 | 2018-04-13 | 珠海格力电器股份有限公司 | Air conditioner |
| CN104566636B (en) * | 2013-10-28 | 2017-11-14 | 珠海格力电器股份有限公司 | Air duct machine and air conditioner with same |
| CN104697041B (en) * | 2013-12-04 | 2018-09-18 | 珠海格力电器股份有限公司 | Ceiling type air conditioner indoor unit system |
| CN104061668B (en) * | 2014-06-17 | 2016-11-09 | 珠海格力电器股份有限公司 | Indoor unit of air conditioner |
| CN106839370A (en) * | 2015-12-07 | 2017-06-13 | 珠海格力电器股份有限公司 | Air conditioner indoor unit and control method thereof |
| CN106091329B (en) * | 2016-06-17 | 2022-02-11 | 珠海格力电器股份有限公司 | Indoor unit of air conditioner |
| CN106321473B (en) * | 2016-09-05 | 2019-02-05 | 青岛海尔空调器有限总公司 | Cross flow fan for air conditioner |
| CN107490067B (en) * | 2017-08-25 | 2022-11-15 | 珠海凌达压缩机有限公司 | Indoor unit 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 |
| CN107388388A (en) * | 2017-08-29 | 2017-11-24 | 陈振邦 | A kind of new split-type air conditioner |
| CN109282466B (en) * | 2018-09-04 | 2024-04-16 | 奥克斯空调股份有限公司 | Air duct assembly and air conditioner |
| CN109340915B (en) * | 2018-11-19 | 2020-09-11 | 广东美的制冷设备有限公司 | Air conditioner indoor unit and air conditioner |
| CN110887186B (en) * | 2019-11-01 | 2020-11-06 | 珠海格力电器股份有限公司 | Method and device for controlling air outlet of unit, computer equipment and storage medium |
| CN111076298B (en) * | 2019-11-27 | 2021-05-04 | 珠海格力电器股份有限公司 | Air conditioner assembly, regulation and control method and air conditioner |
| CN111412616A (en) * | 2020-03-02 | 2020-07-14 | 珠海格力电器股份有限公司 | Air conditioning system and control method thereof |
| 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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Also Published As
| Publication number | Publication date |
|---|---|
| CN202747485U (en) | 2013-02-20 |
| CN103486668B (en) | 2016-04-20 |
| CN103486667B (en) | 2016-01-20 |
| CN103486664B (en) | 2015-12-09 |
| CN103486669A (en) | 2014-01-01 |
| CN202747482U (en) | 2013-02-20 |
| CN202747570U (en) | 2013-02-20 |
| CN103486712A (en) | 2014-01-01 |
| CN202747572U (en) | 2013-02-20 |
| CN103486669B (en) | 2016-03-23 |
| CN103486668A (en) | 2014-01-01 |
| CN103486666A (en) | 2014-01-01 |
| CN103486664A (en) | 2014-01-01 |
| CN202747569U (en) | 2013-02-20 |
| CN103486711A (en) | 2014-01-01 |
| CN103486667A (en) | 2014-01-01 |
| CN202747571U (en) | 2013-02-20 |
| CN202747568U (en) | 2013-02-20 |
| CN202747483U (en) | 2013-02-20 |
| CN103486665A (en) | 2014-01-01 |
| CN103486712B (en) | 2016-05-25 |
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