The content of the invention
It is an object of the invention to provide a kind of wall-hanging air conditioner indoor unit, the indoor set is using rear air intake, annular air
Air supply mode, solve the problems, such as that existing indoor set air supply direction is single, blowing range is limited.
For achieving the above object, the present invention is achieved using following technical proposals：
A kind of wall-hanging air conditioner indoor unit, including housing, on the housing formed with air inlet and air outlet, described
Enclosure interior is provided with fan and heat exchanger, and the air inlet is formed at the back side of the housing, and the air outlet is forms in institute
State the round wind outlet on housing.
Preferably, the round wind outlet is continuous air outlet.
Preferably, the orthographic projection of the indoor set is rounded or side number be more than 4 polygon.
Indoor set as described above, further to reduce heat exchanger crushing, improving air quantity, reduction noise, the fan is
Centrifugal fan, the heat exchanger are arranged between the centrifugal fan and the air inlet.
Indoor set as described above, the round wind outlet comprise at least to be formed on the housing, with the centrifugation
The first annular air outlet of the corresponding opening position of the blade of fan.
Indoor set as described above, to improve wind pushing performance, in the enclosure interior formed with will be from the centrifugal fan
The wind of blade blowout be oriented to the first annular air outlet and from the annular air supply wind of the first annular air outlet blowout
Preferably, the annular air supply air channel includes from the outer edge of the centrifugal fan to the first annular air-out
The arc wind waveguide plate of mouth extension, any point that the arc wind waveguide plate intersects with the outer edge of the centrifugal fan is as starting
Point forming, towards the first annular air outlet between the tangent line of arc where the starting point and the axis of the centrifugal fan
Angle X angle number be more than 45 ° and less than 90 °, other any points on the arc wind waveguide plate in addition to the starting point
The angle of angle Y being formed between the axis of the tangent line of place arc and the centrifugal fan, towards the first annular air outlet
The number of degrees are more than 30 ° and are less than the angle number of the angle X.
Indoor set as described above, further to expand air supply direction and increase blowing range, the round wind outlet is also
Include at least one front annular air to be formed before the housing and before the first annular air outlet
Indoor set as described above, the exchanger base is provided with drip tray.
Indoor set as described above, to increase incoming air area, the back side side outline line of the housing is convex, side behind centre
Along the camber line of gradual withdrawn forward, the air inlet is formed in the cambered surface being made up of the camber line.
Compared with prior art, the advantages and positive effects of the present invention are：
1st, wall-hanging air conditioner indoor unit of the invention is gone out by forming air inlet in back side of shell, forming annular on housing
Air port, incoming air area can not only be increased by the larger space in the back side, and circumferential direction can be realized using round wind outlet
On 3d air delivery, extend air supply direction, add air-out area and blowing range, improve heat exchange efficiency；Moreover, pass through
Air supply direction is extended, in the case of identical air quantity, the air-supply air quantity on some air supply direction can be reduced, can not avoided out
Wind reduces the air quantity for blowing to human body in the case of blowing on the person, reduce the wind-induced discomfort of human body blow-through.
2nd, by setting centrifugal fan in machine indoors, heat exchanger is arranged between centrifugal fan and air inlet, will be gone out
Air port is arranged on the housing side corresponding with centrifugal fan or above, the suction of air intake, side air-out or preceding air-out after being formed
Wind structure, not only air inlet is isolated with air outlet, reduce indoor set noise, moreover, air draft structure causes low speed
Wind is first passed through heat exchanger and then arrived again after centrifugal fan is boosted and blown out with high speed from air outlet, can be reduced at heat exchanger
Crushing, improve air-out volume, and reduce further indoor set noise.
After the embodiment of the present invention is read in conjunction with the figure, the other features and advantages of the invention will become more clear
Technical scheme is described in further detail with reference to the accompanying drawings and detailed description.
First, a brief description is made to technical term involved in the embodiment：It is following to mention structure
It is to be defined under structural member normal operating condition relative to the position of user during the above or below of part；For multiple
When the arrangement position of structural member carries out front or rear description, and with the device that multiple structural members are formed under normal operating condition
The definition done relative to the position of user.
One embodiment of the wall-hanging air conditioner indoor unit of the present invention shown in Fig. 1 to Fig. 3 is referred to, wherein, Fig. 1 is this
The stereogram of one embodiment, Fig. 2 are its side views, and Fig. 3 is the longitudinal sectional view of Fig. 2 side views.
Anticipate as shown in Figure 1, Figure 2 and Figure 3, the wall-hanging air conditioner indoor unit of the embodiment includes the rounded shell of orthographic projection
Body 11, formed with air inlet 111 on the back side of housing 11, formed with round wind outlet 112, the annular air on housing 11
Mouthfuls 112 are across the side of housing 11 and above.Air outlet grate is provided with round wind outlet 112, likewise, in air inlet
Air-inlet grille is also equipped with 111.Moreover, round wind outlet 112 is continuous air outlet.
Centrifugal fan 12 and heat exchanger 13 in tandem is internally provided with housing 11.Wherein, heat exchanger 13 is arranged on
Between centrifugal fan 12 and air inlet 111, fixture can be passed through（Do not marked in figure）It is fixed on housing 11.Heat exchanger 13 is flat
Plate type heat exchanger, convenient processing.The bottom of heat exchanger 13 is provided with drip tray 14.Before centrifugal fan 12 is arranged on heat exchanger 13
Side, can pass through fixed plate（Do not marked in figure）It is fixed on housing 11.Round wind outlet 112 correspond to the blade of centrifugal fan 12
121 position and formed on housing 11.
Moreover, in enclosure interior formed with annular air supply air channel 15, by what is blown out from the blade 121 of centrifugal fan 12
Wind is oriented to round wind outlet 112, and then blows to interior from round wind outlet 112.
The course of work of the wall-hanging air conditioner indoor unit of the embodiment is as follows：
Wind in room enters from the air inlet 111 positioned at the back side of housing 11, by heat exchanger 13 exchange heat after, be inhaled into from
Inside heart fan 13, after the Promotion From Within pressure of centrifugal fan 13, centrifugal fan 13 is thrown out of, is then blown from its blade 121
Spirally to external diffusion after coming, round wind outlet 112 most is sent to through annular air supply air channel 15 afterwards, then through round wind outlet 112
Realize 360 ° of circumferential air-supply.
The wall-hanging air conditioner indoor unit of the embodiment forms air inlet 111 at the back side of housing 11, formed on housing 11
Round wind outlet 112, air intake, the air supply mode of annular air after composition, the space that the back side can not only be utilized larger increase into
Wind area, realize the rear air intake of large area, additionally it is possible to realize in circumferential direction, in the range of 360 ° using round wind outlet 112
Air-supply, extends air supply direction, adds blowing range.Moreover, air inlet is located in the different faces of housing 11 with air outlet, energy
Enough reduce noise.In addition, centrifugal fan 12 and heat exchanger 13 are using mode, heat exchanger 13 are arranged on centrifugal fan 12 in tandem
Between air inlet 111, heat exchanger 13 can use existing plate armature, easy to process, heat exchange property stabilization；It is and right
It is air draught mode, its windward side face air inlet 111, face velocity is low speed windward, and wind passes through heat exchanger for heat exchanger 13
Crushing is low when 13, can improve the air-supply air quantity of whole indoor set, reduces indoor set noise.Moreover, using centrifugal fan 12, can
To cause whole indoor machine structure compact, it is easy to be used as its shell using the rounded housing 11 of orthographic projection, has broken existing wall
Hanging air-conditioner indoor machine is axial-flow fan, orthographic projection is rectangular conventional outward appearance limitation, meets of user well
Anticipate as shown in side elevation in figure 2, in this embodiment, the back side side outline line D of housing 11 is by convex behind centre
The gradual withdrawn forward of camber line D2 and edge the camber lines that are formed of camber line D1, so as to form surface using the contour line D of arc
For the back side of cambered surface.Moreover, air inlet 111 is formed in the cambered surface, so as on the basis with same backs perspective plane
On than planar structure there is more large area to form air inlet 11, and then add the incoming air area of indoor set.
Moreover, on housing 11, correspond to room of the blade 121 of centrifugal fan 2 formed with round wind outlet 1112
For interior machine, the structure in annular air supply air channel 15 is larger to annular air supply performance impact.In this embodiment, annular air supply air channel
15 include the arc wind waveguide plate 151 and 152 extended from the outer edge of centrifugal fan 2 to round wind outlet 112.Referring to Fig. 3 institutes
Signal, by taking the arc wind guiding member 151 extended with the rear portion outer edge of centrifugal fan 12 to round wind outlet 112 as an example, arc is led
Any point that aerofoil 151 intersects with the rear portion outer edge of centrifugal fan 12 is as starting point, for example, the point A in figure, the starting point
Formed with the angle X towards round wind outlet 112 between the tangent line of arc where A and the axis of centrifugal fan 2, and arc wind guiding member
Point B on 151 is any point in addition to starting point, where point B between the tangent line of arc and the axis of centrifugal fan 2 formed with
Towards the angle Y of round wind outlet 112, the angle number of angle X and angle Y meets lower relation of plane：45°<X<90 °, 30 °<Y<
X.Angle X angle number is limited between 45 ° -90 °, both will not cause crushing is big, airflow reflux occurs to show because angle is too small
As that will not cannot be guaranteed air-out because angle is excessive again and be blown out forward from round wind outlet 112.And the angle number of angle Y limits
To be less than angle X more than 30 °, the crushing in annular air supply air channel 15 can be both reduced so that air-flow is more swimmingly from air channel
Export, be advantageous to static pressure and recover and reduce noise, can ensure that the curve of annular air supply air channel 15 is overall to front curve again, and not
Occur radian excessive and cause the generation of eddy current problem.
In this embodiment, because the frontal plane of projection of housing 11 is circle, heat exchanger 13 is plate armature, and both can not be tight
Closely connected conjunction.To improve heat exchange efficiency, avoid entering from the wind that air inlet 111 is entered inside housing 11 without heat exchanger 13
Into centrifugal fan 12, the rear end surrounding of air inlet 11 is provided with baffle plate 16 in heat exchanger 13, baffle plate 16 respectively with heat exchange
Device 13 and the phase of housing 11 are fixed, and heat exchanger 13 is sealed by the baffle plate 16 and the phase of housing 11, so as to ensure to enter from air inlet 111
Enter to the wind in housing 11 by heat exchanger 13, then blow to round wind outlet 112 through centrifugal fan 12 again.
Second embodiment of the wall-hanging air conditioner indoor unit of the present invention shown in Fig. 4 to Fig. 6 is referred to, wherein, Fig. 4 is this
The front view of second embodiment, Fig. 5 are its side views, and Fig. 6 is the longitudinal sectional view of Fig. 5 side views.
Such as Fig. 4, Fig. 5 and illustrated in Figure 6, the wall of second embodiment similar to Fig. 3 one embodiment with Fig. 1
Hanging air-conditioner indoor machine also includes the rounded housing 21 of frontal plane of projection, formed with air inlet 211 on the back side of housing 21,
Formed with round wind outlet 212 on housing 21.Air outlet grate is provided with round wind outlet 212, likewise, in air inlet
Air-inlet grille is also equipped with 211.Centrifugal fan 22 and heat exchanger 23 in tandem is internally provided with housing 21.Wherein,
Heat exchanger 23 is arranged between centrifugal fan 22 and air inlet 211.The bottom of heat exchanger 23 is provided with drip tray 24, in heat exchanger
23 rear end surrounding is provided with baffle plate 26.Centrifugal fan 22 is arranged on the front of heat exchanger 23, and round wind outlet 212 correspond to from
The position of the blade 221 of heart fan 22 and formed on housing 21.
Moreover, in enclosure interior formed with annular air supply air channel 25, by what is blown out from the blade 221 of centrifugal fan 22
Wind is oriented to round wind outlet 212, and then blows to interior from round wind outlet 212.The structure in annular air supply air channel 25 with first
The annular air supply air channel 24 of embodiment is similar, refers to the description of one embodiment.
Unlike one embodiment, before the round wind outlet 212 in second embodiment is located at housing 21
Face, to be unable to air-out at discontinuous air outlet, namely segmental arc 2121.By the way that round wind outlet 212 is arranged on into housing 21
Above, except realize overall air-out be preceding air-out mode in addition to, larger space can also be reserved to form air inlet 211.It is logical
Cross and round wind outlet 212 is arranged to discontinuous air outlet, it is possible to achieve selectively blow, controlled at some in circumferential direction
On direction or in some angular range（Angular range corresponding to segmental arc 2121）Do not blow.
For discontinuous round wind outlet 212 in the embodiment, it can use and be formed discontinuously directly on housing 21
Round wind outlet 211 realize in circumferential direction selectivity air-supply, following manner can also be used：The company of being formed on housing 21
Continuous round wind outlet, adjustable angle is set at the segmental arc 2121 of round wind outlet, for beating opening/closing round wind outlet
Wind deflector, segmental arc 2121 is closed by controlling wind deflector, realize the selectivity air-supply of different angle in circumferential direction.
Fig. 7 is referred to, the figure shows the stereogram of 3rd embodiment of wall-hanging air conditioner indoor unit of the present invention.
As shown in fig. 7, basic configuration, structure and Fig. 1 of the wall-hanging air conditioner indoor unit of the 3rd embodiment are to Fig. 3 institutes
The one embodiment shown is similar, also includes the rounded housing 31 of orthographic projection, formed with air intake on the back side of housing 31
Mouth 311.And unlike one embodiment, in the 3rd embodiment, formed with two annular airs on housing 31
Mouthful, the respectively first annular round wind outlet 313 of air outlet 312 and second.Wherein, first annular air outlet 312 is implemented with Fig. 1
Example is similar, is the blade with the centrifugal fan inside housing 31（Not shown in figure, one embodiment is referred to）Position is relative
The round wind outlet answered, and the second round wind outlet 313 is located at before first annular air outlet 312, and be formed in
A front round wind outlet before housing 31.
By setting two round wind outlets on housing 31, each round wind outlet can circumferentially blow, so as to real
Now large-scale 3d air delivery, further expands air-out direction, increases wind-out range.
If desired, in addition to the second round wind outlet 313, ring in front of more can also be set before housing 31
Shape air outlet.Moreover, each round wind outlet including first annular air outlet 312, both can be continuous air outlet,
It can be interrupted air outlet.
In three above-mentioned embodiments, the orthographic projection of indoor set is circle, but is not limited to this, be may be designed in just
The polygon that side number is more than 4 is projected as, such as pentagon, hexagon, octagon are full to improve the diversity of indoor set product
Individual demand of the sufficient user to indoor set profile.
The above embodiments are merely illustrative of the technical solutions of the present invention, rather than is limited；Although with reference to foregoing reality
Example is applied the present invention is described in detail, for the person of ordinary skill of the art, still can be to foregoing implementation
Technical scheme described in example is modified, or carries out equivalent substitution to which part technical characteristic；And these are changed or replaced
Change, the essence of appropriate technical solution is departed from the spirit and scope of claimed technical solution of the invention.