CN205137687U - Air -conditioning indoor unit - Google Patents
Air -conditioning indoor unit Download PDFInfo
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- CN205137687U CN205137687U CN201520888116.3U CN201520888116U CN205137687U CN 205137687 U CN205137687 U CN 205137687U CN 201520888116 U CN201520888116 U CN 201520888116U CN 205137687 U CN205137687 U CN 205137687U
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Abstract
The utility model provides an air -conditioning indoor unit, it includes: the casing, it has first air intake, second air intake and air outlet, centrifugal fan sets up in the casing, and configures into from first air intake surrounding environment suction ambient air and make it flow to the air outlet, and centrifugal fan includes the spiral case and sets up the impeller in the spiral case, the spiral case has the fan air intake with first air intake intercommunication, and injects the spiral case wind channel jointly with the casing, the drainage air ducting sets up in the casing, configures into to see air current that comes from centrifugal fan and the air flow mixed who comes from the second air intake off from the air outlet, it includes wind channel wall and the first wind -guiding circle that communicates with the air outlet, and a water conservancy diversion wind channel is injectd with the casing jointly by the wind channel wall to the air current that the messenger comes from centrifugal fan all flows to the air outlet via first wind -guiding circle, wherein wind channel wall, spiral case and first wind -guiding enclose integrated into one piece. The utility model discloses be favorable to improving the air output of air conditioner.
Description
Technical field
The utility model relates to air-conditioning technique field, particularly relates to a kind of indoor apparatus of air conditioner.
Background technology
Existing indoor apparatus of air conditioner is when blowing, the air outlet that wind after heat exchanger heat exchange is directly offered from air-conditioning under the effect of fan inside blows out, therefore blown out wind is all heat exchange wind, namely the wind blown out or entirely for hot blast, or be cold wind entirely, such wind directly blows and people can be allowed to feel extremely uncomfortable on the health of people.
In addition, in the prior art, volute of blower and the air outlet of indoor apparatus of air conditioner are all that the transition realized therebetween by external stability is connected, cause air-flow enter air outlet through blower fan can be mild and occur effect of boundary layer due to transition line, so just, the phenomenon such as turbulent flow, turbulent flow of air-flow can be caused, air output is reduced; And under refrigerating state, very easily form condensation at air outlet place, affect the result of use of user.
Utility model content
An object of the present utility model is to overcome above-mentioned at least one defect of the prior art, provides a kind of indoor apparatus of air conditioner that can blow out even, soft mixing wind.
The utility model further object to provide a kind of indoor apparatus of air conditioner that can not form condensation at air outlet place.
Another further object of the utility model a kind of volume will be provided little and rakish indoor apparatus of air conditioner.
In order to realize at least one object above-mentioned, the utility model provides a kind of indoor apparatus of air conditioner, comprising:
Housing, it has the first air inlet, the second air inlet and air outlet;
Centrifugal blower, is arranged in described housing, and is configured to suck surrounding air from described first air inlet surrounding environment and impel it to flow to described air outlet, and described centrifugal blower comprises spiral case and is arranged at the impeller in described spiral case; Described spiral case has the air inlet be communicated with described first air inlet, and jointly limits spiral case air channel with described housing;
Drainage air ducting, is arranged in described housing, is configured to the air-flow from described centrifugal blower and the mixing of the air-flow from described second air inlet and sends from described air outlet; It the first air-ducting ring comprising wind path wall and be communicated with described air outlet, described wind path wall and described housing limit diversion air duct jointly, all flow to described air outlet via described first air-ducting ring to make the air-flow from described centrifugal blower; Wherein
Described wind path wall, described spiral case and described first air-ducting ring are one-body molded.
Alternatively, described first air inlet is arranged on described housing upper, and described air outlet and described second air inlet are separately positioned on the both sides, front and back of described lower housing portion;
Described centrifugal blower is arranged on the top of described enclosure interior spatial accommodation, and described drainage air ducting is arranged at the bottom of described enclosure interior spatial accommodation; And
The second air-ducting ring that the rear side that described drainage air ducting is also included in described first air-ducting ring is arranged in order and the 3rd air-ducting ring, the front section of described second air-ducting ring is in the radially inner side of described first air-ducting ring back section, and the back section of described second air-ducting ring is in the radially inner side of described wind path wall; Described 3rd air-ducting ring is communicated with described second air inlet, and the front section of described 3rd air-ducting ring is in the radially inner side of described second air-ducting ring back section.
Alternatively, described spiral case comprises the spiral case antetheca and spiral case perisporium that jointly limit described spiral case air channel with the rear wall of described housing, and wherein said spiral case antetheca offers described air inlet;
Described spiral case perisporium comprises the volute section relative to described impeller outer profile flaring, and spiral inlet area section and exit zone are stretched out respectively to downward in the two ends of described volute section, form fan outlet between wherein said spiral inlet area section and described exit zone;
Described impeller is configured as the impeller projection line being projected as circle making its outline in a plane perpendicular to the rotation of described centrifugal blower; And
The described exit zone of vicinity of described volute section partially-formed one first circle of reference for making its projection in described plane and radius increase successively, one second circle of reference, one the 3rd circle of reference are tangent;
Described first circle of reference, the second circle of reference and described 3rd circle of reference are all tangent with described impeller projection line, wherein
The line in the center of circle of described first circle of reference and the center of circle of described impeller projection line and between the horizontal line in the center of circle of described impeller projection line, there is the first angle, and the center of circle of described first circle of reference is positioned at described horizontal top;
Between the line in the center of circle of described second circle of reference and the center of circle of described impeller projection line and described horizontal line, there is the second angle, and the center of circle of described second circle of reference is positioned at described horizontal below;
Between the line in the center of circle of described 3rd circle of reference and the center of circle of described impeller projection line and described horizontal line, there is the 3rd angle, and the center of circle of described 3rd circle of reference is positioned at the below in the center of circle of described second circle of reference; And
The center of circle of described first circle of reference, described second circle of reference and described 3rd circle of reference is all on one the 4th circle of reference, and described 4th reference radius of a circle is 1:1 ~ 1.5:1 with the ratio of the radius of described impeller projection line.
Alternatively, described first angle is 3 ° ~ 7 °;
Described second angle is 10 ° ~ 15 °;
Described 3rd angle is 20 ° ~ 30 °;
Described second circle of reference is 1.12 ~ 1.16 with the ratio of described first reference radius of a circle; And
Described 3rd circle of reference is 1.07 ~ 1.11 with the ratio of described second reference radius of a circle.
Alternatively, described first air-ducting ring is configured as the first air-ducting ring projection line being projected as annular making it in described plane, and described first air-ducting ring projection line comprises outer annular curve and the inner annular curve at described outer annular curvilinear inner; Wherein
There is between the center of described inner annular curve and the projection of the rotation of described centrifugal blower in described plane the first Distance geometry second distance vertically in the horizontal direction.
Alternatively, the ratio of described second distance and described first distance is 4.5 ~ 5.
Alternatively, described indoor apparatus of air conditioner, is characterized in that,
The diameter of described impeller is 260mm ~ 270mm;
Described first distance is 54mm ~ 62mm; And
Described second distance is 270mm ~ 280mm.
Alternatively, described wind path wall to comprise from described spiral case antetheca to the air channel antetheca of downward-extension with after described spiral inlet area section extends downward extreme lower position, extends upwardly to the air channel sidewall of described exit zone again, and the front edge of described air channel sidewall connects with described air channel antetheca; Wherein, described air channel antetheca is formed with opening, and described first air-ducting ring extends forward from described opening.
Alternatively, described housing comprises:
Back cover, has the rear wall that bottom offers described second air inlet, and extends forward from described rear wall the container cavity wall limiting described enclosure interior spatial accommodation; With
Front panel, is installed on the forward direction opening part of described back cover, and its top offers described first air inlet, and bottom offers described air outlet.
Alternatively, described indoor apparatus of air conditioner also comprises:
Shutter, its lower end is rotatably installed on the front side of described front panel around a transverse horizontal axis, to open or to close described first air inlet; With
Heat exchanger, is arranged on the air intake passage between described centrifugal blower and described first air inlet in described housing, to carry out heat exchange with the surrounding air entered via described first air inlet.
The utility model is by arranging drainage air ducting, by from centrifugal blower heat exchange air-flow and from the air-flow of the second air inlet be mixed to form mixing wind after send from air outlet again, thus increase the intake of this indoor apparatus of air conditioner, accelerate indoor speed air flow, the wind also making indoor apparatus of air conditioner blow out becomes more soft comfortable.
Further, the utility model passes through one-body molded to the first air-ducting ring, wind path wall and spiral case, make air-flow milder from the flow path volute outlet (i.e. fan outlet) to air-conditioner air outlet, more easily form Coanda effect, thus make the flowing of gas more smooth and easy, considerably increase the air output of this indoor apparatus of air conditioner.
Further, the utility model is by limiting the volute section outline line of the contiguous exit zone of spiral case, transition molded line between volute section and exit zone is arranged to the base involute such as not, substantially increase the formation rate of air-conditioner air outlet place Coanda effect, make the whole periphery of air-conditioner air outlet all have wind to blow over, avoid the formation of condensation at air-conditioner air outlet place.
Further, the utility model is by the Coanda effect according to impeller size and fluid, the volute section of spiral case and the transition molded line of exit zone are designed to the base method involute such as not, be arranged in particular range by the distance of the inner annular center of curve of the projected outline in the plane of the rotation perpendicular to centrifugal blower by centrifugal blower center and the first air-ducting ring simultaneously, thus combing fluid flow trace effectively, very easily form Coanda effect, increase overall air-supply air quantity, improve air-supply efficiency.
Accompanying drawing explanation
Hereinafter describe specific embodiments more of the present utility model with reference to the accompanying drawings by way of example, and not by way of limitation in detail.Reference numeral identical in accompanying drawing denotes same or similar parts or part.It should be appreciated by those skilled in the art that these accompanying drawings may not be drawn in proportion.In accompanying drawing:
Fig. 1 is the schematic diagram of the indoor apparatus of air conditioner of the utility model embodiment;
Fig. 2 is the schematic explosive view of indoor apparatus of air conditioner shown in Fig. 1;
Fig. 3 is the schematic cross sectional views of indoor apparatus of air conditioner shown in Fig. 1;
Fig. 4 is the schematic diagram of the utility model integrated spiral case of embodiment, wind path wall and first air-ducting ring;
Fig. 5 is the lateral side view of integrated spiral case shown in Fig. 4, wind path wall and the first air-ducting ring.
Fig. 6 is the rearview of integrated spiral case shown in Fig. 4, wind path wall and the first air-ducting ring.
Fig. 7 is the schematic projection view of centrifugal blower, wind path wall and the first air-ducting ring.
Detailed description of the invention
Fig. 1 is the schematic diagram of the indoor apparatus of air conditioner 100 according to the utility model embodiment, and Fig. 2 is the explosive view of indoor apparatus of air conditioner 100 shown in Fig. 1, and Fig. 3 is the sectional view of indoor apparatus of air conditioner 100 shown in Fig. 1.See Fig. 1 to Fig. 3, the indoor apparatus of air conditioner 100 of the utility model embodiment comprises: housing 110 and the centrifugal blower 120 etc. being positioned at housing 110.
Particularly, housing 110 has the first air inlet 113, second air inlet 115 for introducing the air (such as room air) in environment space and the air outlet 114 for sending into mixing wind to environment space.
Centrifugal blower 120 is configured to suck surrounding air from the first air inlet 113 surrounding environment and impel it to flow to air outlet 114.Centrifugal blower 120 can comprise: spiral case 122 and the impeller 121 be arranged in spiral case 122.Spiral case 122 has the air inlet 1223 be communicated with the first air inlet 113, and jointly limits spiral case air channel with housing 110.
Especially, the indoor apparatus of air conditioner 100 of the utility model embodiment also comprises drainage air ducting, and it is arranged in housing 110, is configured to the air-flow from centrifugal blower 120 and the mixing of the air-flow from the second air inlet 115 and sends from air outlet 114.Drainage air ducting comprises: wind path wall 143 and the first air-ducting ring 141 be communicated with air outlet 114.Wind path wall 143 and housing 110 limit diversion air duct 180 jointly, all flow to air outlet 114 via the first air-ducting ring 141 to make the air-flow from centrifugal blower 120.In the utility model preferred embodiment, wind path wall 143, spiral case 122 and the first air-ducting ring 141 are one-body molded.
Embodiment of the present utility model is passed through wind path wall 143, spiral case 122 and the one-body molded design of the first air-ducting ring 141, can avoid to a certain extent air-flow after centrifugal blower 120 on the path flowing to air outlet 114, because transition line does not occur effect of boundary layer gently, thus can avoid to a certain extent gas turbulent flow and turbulent flow etc. phenomenon, flow to air outlet 114 with enabling gas steady and smooth, improve air-supply efficiency.
In certain embodiments, the first air inlet 113 is arranged on housing 110 top, and air outlet 114 and the second air inlet 115 are separately positioned on the both sides, front and back of housing 110 bottom.Air outlet 113 and the second air inlet 115 can be substantially oblong-shaped.Centrifugal blower 120 is arranged on the top of housing 110 interior accommodating space, and drainage air ducting is arranged on the bottom of housing 110 interior accommodating space.
In certain embodiments, housing 110 comprises back cover 111 and front panel 112.Wherein, back cover 111 has the rear wall 1111 that bottom offers the second air inlet 115, and extends forward from rear wall 1111 the container cavity wall 1112 limiting enclosure interior spatial accommodation.Front panel 112 is installed on the forward direction opening part of back cover 111, and its top offers the first air inlet 113, and bottom offers air outlet 114.
In certain embodiments, indoor apparatus of air conditioner 100 also comprises shutter 150, and its lower end is rotatably installed on the front side of front panel 112 around a transverse horizontal axis, to open or close the first air inlet 113.In a preferred embodiment, the open angle of shutter 150 can freely control, thus effectively can control the intake of the first air inlet 113, to reach the object of the air output regulating indoor apparatus of air conditioner 100.
In a further embodiment, the second air-ducting ring 142 that the rear side that drainage air ducting is also included in the first air-ducting ring 141 is arranged in order and the 3rd air-ducting ring 144.The front section of the second air-ducting ring 142 is in the radially inner side of the first air-ducting ring 141 back section, the back section of the second air-ducting ring 142 is in the radially inner side of wind path wall 143,3rd air-ducting ring 144 is communicated with the second air inlet 115, and the front section of the 3rd air-ducting ring 144 is in the radially inner side of the second air-ducting ring 142 back section.
The central collar aperture of three air-ducting ring is interconnected, and defines the through air channel 170 of connection second air inlet 115 and air outlet 114; The heat exchange wind air channel 190 being communicated with spiral case air channel and through air channel 170 is formed between adjacent two air-ducting ring.Air-flow from centrifugal blower 120 all enters through air channel 170 from heat exchange wind air channel 190 behind spiral case air channel.
In certain embodiments, the first air-ducting ring 141, second air-ducting ring 142 and the 3rd air-ducting ring 144 all have front and back opening and middle through tubular structure.Each air-ducting ring all has himself import and outlet, and the after-opening of each air-ducting ring is its import, open front is its outlet.Three air-ducting ring are arranged in order along the longitudinal direction, the outlet of the 3rd air-ducting ring 144 is stretched in the second air-ducting ring 142 import, the outlet of the second air-ducting ring 142 is stretched in the first air-ducting ring 141 import, in the utility model embodiment, the air-flow part that centrifugal blower 120 blows downwards enters the first air-ducting ring 141 via the outside of the second air-ducting ring 142, and another part enters the first air-ducting ring 141 via the inner side of the second air-ducting ring 142.Thus, enough large negative pressure is formed at the radially inner side of the 3rd air-ducting ring 144 and the second air-ducting ring 142 back section, enter three air-ducting ring 144 in via the second air inlet 115 to make the air in the second air inlet 115 surrounding ambient under this negative pressure, then mix with the air-flow after heat exchange, together flow out from air outlet 114, thus increase the overall intake of indoor apparatus of air conditioner 100, accelerate the flowing velocity of room air.Simultaneously without the surrounding air (referred to as non-heat exchange wind) of heat exchange and wind (referred to as heat exchange wind) the mixed mixing wind after heat exchange comparatively soft, blowing to user can make it feel extraordinarily comfortable with it, and the comfortableness substantially increasing user is experienced.
In certain embodiments, 3rd air-ducting ring 144 has the front-end edge limiting formation export and import respectively and the end edge of substantially oblong-shaped shape, and connected by an annular surface between front-end edge, end edge, this annular surface extends to front-end edge from end edge convergent.3rd air-ducting ring 144 can be one-body molded with the rear wall of housing 110, and the second air inlet 115 is the import of the 3rd air-ducting ring 144.Second air-ducting ring 142 and the first air-ducting ring 141 all can comprise the front-end edge limiting formation export and import respectively and end edge with substantially oblong-shaped shape, and are connected by an annular surface between front-end edge, end edge.The annular surface of the second air-ducting ring 142 and the first air-ducting ring 141 extends to the minimum ring neck of draught area from the first convergent of respective end edge, then flaring extends to respective front-end edge.Wherein, the front-end edge of the second air-ducting ring 142 can be connected by round-corner transition with between annular surface.Annular surface everywhere thickness can be identical.The draught area of front-end edge is less than the draught area of ora terminalis thereafter, and front-end edge is than the ring neck of end edge closer to annular surface.For the first air-ducting ring 141, the draught area of its front-end edge 1411 is substantially identical with the draught area of end edge 1412, and end edge 1412 is than the ring neck 1414 of front-end edge 1411 closer to annular surface 1413.In certain embodiments, the front-end edge 1411 of the first air-ducting ring 141 limits the outlet formed and can stretch in air outlet 114, and basic concordant with the periphery of air outlet 114.
In some embodiments of the utility model, the second air-ducting ring 142 can be configured to swing up and down.When the second air-ducting ring 142 swings, can there is downward shift in its outlet (i.e. open front), thus the air-out direction generation downward shift of bootable air outlet 114.
The indoor apparatus of air conditioner 100 of the utility model embodiment also comprises driving mechanism, is arranged in housing 110, and is configured to driving second air-ducting ring 142 and swings up and down.Driving mechanism is connected with the second air-ducting ring 142, by drive the second air-ducting ring 142 swing up and down to change opening before and after it towards.Thus directly regulate the air supply direction of mixing wind at air outlet 114 place, increase the blowing range of indoor apparatus of air conditioner 100.
In certain embodiments, indoor apparatus of air conditioner 100 also comprises heat exchanger 130, it is arranged on the air intake passage between centrifugal blower 120 and the first air inlet 113 in housing 110, to carry out heat exchange with the surrounding air entered via the first air inlet 113 forming heat exchange air-flow.At least part of heat exchange section of heat exchanger 130 is tabular, at least part of heat exchange section perpendicular to the rotation of centrifugal blower 120, and between centrifugal blower 120 and the first air inlet 113.Particularly, heat exchanger 130 is a plate type heat exchanger.In other embodiments, heat exchanger 130 comprises multiple plate type heat exchanger, and multiple plate type heat exchanger sets gradually along the direction perpendicular to the rotation of centrifugal blower 130, and multiple plate type heat exchanger is parallel with one another.
In certain embodiments, indoor apparatus of air conditioner 100 also comprises drip tray supporting seat 160, and it is arranged at the bottom of spiral case antetheca 1221 and is positioned on the upside of the first air-ducting ring 141, for fixedly mounting drip tray.
See Fig. 4 and Fig. 5, in the particular embodiment, spiral case 122 comprises the spiral case antetheca 1221 and spiral case perisporium 1222 that jointly limit spiral case air channel with the rear wall of housing 110.Wherein, spiral case antetheca 1221 offers air inlet 1223.Spiral case perisporium 1222 comprises the volute section 1225 relative to impeller 121 outline flaring, and spiral inlet area section 1226 and exit zone 1227 are stretched out respectively to downward in the two ends of volute section 1225.Wherein form fan outlet between spiral inlet area section 1226 and exit zone 1227.
In certain embodiments, wind path wall 143 comprises the air channel antetheca 1431 from spiral case antetheca 1221 to downward-extension, with extend downward extreme lower position from spiral inlet area section 1226 after extend upwardly to the air channel sidewall 1432 of exit zone 1227 again, and the front edge of air channel sidewall 1432 connects with air channel antetheca 1431.Wherein, air channel antetheca 1431 is formed with opening, and the first air-ducting ring 141 extends forward from aforementioned opening.
Present inventor finds through flow field analysis, and for the spiral case 122 of integrated design, wind path wall 143 and the first air-ducting ring 141 structure, spiral case 122 is larger in the impact of molded line on air-supply efficiency of the volute section 1225 of contiguous exit zone 1227.Because the molded line structure of spiral case 122 volute section 1225 is irregular, directly cannot limit, therefore be limited by the mode of projection in the embodiment of the present application.
Fig. 6 is the rearview of integrated spiral case 122 shown in Fig. 4, wind path wall 143 and the first air-ducting ring 141.The schematic perspective view that Fig. 7 is centrifugal blower 120, wind path wall 143 and the first air-ducting ring 141 project from back to front in the plane perpendicular to centrifugal blower 120 rotation.See Fig. 6 and Fig. 7, impeller 121 be configured as make its outline in a plane perpendicular to the rotation of centrifugal blower 120 be projected as circular impeller projection line Ry, and the contiguous air outlet section 1227 of volute section 1225 partially-formed one first circle of reference R1, one second circle of reference R2 for making its projection t in aforesaid plane and radius increase successively, one the 3rd circle of reference R3 are tangent.Wherein the first circle of reference R1, the second circle of reference R2 and the 3rd circle of reference R3 are all tangent with impeller projection line Ry.
Further, the line of the center of circle O1 of the first circle of reference R1 and the center of circle B of impeller projection line Ry and there is the first angle α between the horizontal line a of the center of circle B of impeller projection line Ry, and the center of circle O1 of the first circle of reference R1 is positioned at the top of horizontal line a; Between the line of the center of circle O2 of the second circle of reference R2 and the center of circle B of impeller projection line Ry and horizontal line a, there is the second angle β, and the center of circle O2 of the second circle of reference R2 is positioned at the below of horizontal line a; Between the line of the center of circle O3 of the 3rd circle of reference R3 and the center of circle B of impeller projection line Ry and horizontal line a, there is the 3rd angle γ, and the center of circle O3 of the 3rd circle of reference R3 is positioned at the below of the center of circle O2 of the second circle of reference R2.The center of circle of the first circle of reference R1, the second circle of reference R2 and the 3rd circle of reference R3 is all on one the 4th circle of reference R4, and the radius (distance namely in Fig. 7 between O1 and O4) of the 4th circle of reference R4 is 1:1 ~ 1.5:1 with the ratio of the radius of impeller projection line Ry.
In a preferred embodiment, the first angle α is 3 ° ~ 7 °, and the second angle β is 10 ° ~ 15 °, and the 3rd angle γ is 20 ° ~ 30 °; And the second circle of reference R2 and the ratio of the radius of the first circle of reference R1 are the 1.12 ~ 1.16, three circle of reference R3 is 1.07 ~ 1.11 with the ratio of the radius of the second circle of reference R2.Present inventor finds through experiment, by the spiral case inlet pressure designed like this, air-flow can be made in the flowing steady and smooth more of each section, thus reduces the pressure loss of air-flow in flow process, improves air-supply efficiency.
In a further preferred embodiment, the first angle α is about 5 degree; Second angle β is about 12 degree; 3rd angle γ is about 26 degree, and the radius of the 4th circle of reference R4 is about 1.22:1 with the ratio of the radius of impeller projection line Ry.Like this, the pressure loss of air-flow in flow process can be reduced further, greatly can increase air output, improve air-supply efficiency.
Particularly, the diameter of impeller projection line Ry is about 265mm, and the radius of the first circle of reference R1 is about 48mm.
In certain embodiments, first air-ducting ring 141 is configured as and makes it at the first air-ducting ring projection line that be projected as annular of forenamed vertical in the plane of the rotation of centrifugal blower 120, and the first air-ducting ring projection line comprises outer annular curve Q and the inner annular curve P in outside loop curve Q inside.In the perspective view shown in Fig. 7, outer annular curve Q is the projection of outline in aforesaid plane of the first air-ducting ring 141, and inner annular curve P is the projection of Internal periphery in aforesaid plane of the first air-ducting ring 141.
Wherein there is between the center A of inner annular curve P and the projection of the rotation of centrifugal blower 120 in aforementioned same plane the first distance L1 in the horizontal direction and second distance L2 vertically.Namely the center A of inner annular curve P and the projection of the rotation of centrifugal blower 120 in aforesaid plane are not on same vertical curve, and are not on same level line.It will be understood by those skilled in the art that the center A of inner annular curve P is the intersection point of the maximum line of 2 of the lateral separation of inner annular curve P and the vertical line apart from maximum two.
In a preferred embodiment, the ratio of second distance L2 and the first distance L1 is 4.5 ~ 5.In the particular embodiment, the diameter of impeller 121 is 260mm ~ 270mm, and now, the first distance L1 chooses within the scope of 54mm ~ 62mm, and second distance L2 chooses within the scope of 270mm ~ 280mm.
In a further preferred embodiment, the diameter of impeller 121 is about 265mm, and now, the first distance L1 is preferably about 58mm, and second distance L2 is preferably about 275mm.
Embodiment of the present utility model, by the design of the aforementioned design to spiral case inlet pressure in conjunction with the position relationship of centrifugal blower 120 and the first air-ducting ring 141, can ensure the smoothness of air-flow in the flowing of indoor apparatus of air conditioner 100 inside further.Air-flow, from after the first air inlet 113 enters indoor apparatus of air conditioner 100, can flow along spiral case perisporium 1222 under the dynamic action of impeller 121.Distance between the rotation ensureing centrifugal blower 120 and the first air-ducting ring 141 center line is chosen by aforementioned dimensions, air-flow flows out rear circulation area from impeller 121 can become large, flowing velocity can decrease, and now a part of kinetic energy of air-flow can change into interior energy.In the process flowed along spiral case perisporium 1222, the static pressure of air-flow becomes increase trend, when arrival the first air-ducting ring 141, static pressure reaches maximum, at this moment because air-flow is constantly assembled by spiral case perisporium 1222, make air-flow form Coanda effect when flowing from the first air-ducting ring 141 to air outlet 114, namely air-flow along the annular surface 1413 of the first air-ducting ring 141 inwall outwardly.Now, the whole edge of air outlet 114 all can have air-flow to flow through, and the steam avoided in air is caught a cold at air outlet 114 edge and forms the appearance of dew condensation phenomenon.
In addition, in certain embodiments, the center A of the inner annular curve P of the first air-ducting ring projection line and the projection line of spiral inlet area section 1226 in aforesaid plane lay respectively at the both sides of the vertical curve of the center of circle B through impeller projection line Ry.Like this, the airflow pressure losses from centrifugal blower 120 can be reduced further, increase air output, thus improve air-supply efficiency.
So far, those skilled in the art will recognize that, although multiple exemplary embodiment of the present utility model is illustrate and described herein detailed, but, when not departing from the utility model spirit and scope, still can directly determine or derive other modification many or amendment of meeting the utility model principle according to content disclosed in the utility model.Therefore, scope of the present utility model should be understood and regard as and cover all these other modification or amendments.
Claims (10)
1. an indoor apparatus of air conditioner, is characterized in that, comprising:
Housing, it has the first air inlet, the second air inlet and air outlet;
Centrifugal blower, is arranged in described housing, and is configured to suck surrounding air from described first air inlet surrounding environment and impel it to flow to described air outlet, and described centrifugal blower comprises spiral case and is arranged at the impeller in described spiral case; Described spiral case has the air inlet be communicated with described first air inlet, and jointly limits spiral case air channel with described housing;
Drainage air ducting, is arranged in described housing, is configured to the air-flow from described centrifugal blower and the mixing of the air-flow from described second air inlet and sends from described air outlet; It the first air-ducting ring comprising wind path wall and be communicated with described air outlet, described wind path wall and described housing limit diversion air duct jointly, all flow to described air outlet via described first air-ducting ring to make the air-flow from described centrifugal blower; Wherein
Described wind path wall, described spiral case and described first air-ducting ring are one-body molded.
2., according to the indoor apparatus of air conditioner described in claim 1, it is characterized in that,
Described first air inlet is arranged on described housing upper, and described air outlet and described second air inlet are separately positioned on the both sides, front and back of described lower housing portion;
Described centrifugal blower is arranged on the top of described enclosure interior spatial accommodation, and described drainage air ducting is arranged at the bottom of described enclosure interior spatial accommodation; And
The second air-ducting ring that the rear side that described drainage air ducting is also included in described first air-ducting ring is arranged in order and the 3rd air-ducting ring, the front section of described second air-ducting ring is in the radially inner side of described first air-ducting ring back section, and the back section of described second air-ducting ring is in the radially inner side of described wind path wall; Described 3rd air-ducting ring is communicated with described second air inlet, and the front section of described 3rd air-ducting ring is in the radially inner side of described second air-ducting ring back section.
3., according to the indoor apparatus of air conditioner described in claim 2, it is characterized in that,
Described spiral case comprises the spiral case antetheca and spiral case perisporium that jointly limit described spiral case air channel with the rear wall of described housing, and wherein said spiral case antetheca offers described air inlet;
Described spiral case perisporium comprises the volute section relative to described impeller outer profile flaring, and spiral inlet area section and exit zone are stretched out respectively to downward in the two ends of described volute section, form fan outlet between wherein said spiral inlet area section and described exit zone;
Described impeller is configured as the impeller projection line being projected as circle making its outline in a plane perpendicular to the rotation of described centrifugal blower; And
The described exit zone of vicinity of described volute section partially-formed one first circle of reference for making its projection in described plane and radius increase successively, one second circle of reference, one the 3rd circle of reference are tangent;
Described first circle of reference, described second circle of reference and described 3rd circle of reference are all tangent with described impeller projection line, wherein
The line in the center of circle of described first circle of reference and the center of circle of described impeller projection line and between the horizontal line in the center of circle of described impeller projection line, there is the first angle, and the center of circle of described first circle of reference is positioned at described horizontal top;
Between the line in the center of circle of described second circle of reference and the center of circle of described impeller projection line and described horizontal line, there is the second angle, and the center of circle of described second circle of reference is positioned at described horizontal below;
Between the line in the center of circle of described 3rd circle of reference and the center of circle of described impeller projection line and described horizontal line, there is the 3rd angle, and the center of circle of described 3rd circle of reference is positioned at the below in the center of circle of described second circle of reference; And
The center of circle of described first circle of reference, described second circle of reference and described 3rd circle of reference is all on one the 4th circle of reference, and described 4th reference radius of a circle is 1:1 ~ 1.5:1 with the ratio of the radius of described impeller projection line.
4., according to the indoor apparatus of air conditioner described in claim 3, it is characterized in that,
Described first angle is 3 ° ~ 7 °;
Described second angle is 10 ° ~ 15 °;
Described 3rd angle is 20 ° ~ 30 °;
Described second circle of reference is 1.12 ~ 1.16 with the ratio of described first reference radius of a circle; And
Described 3rd circle of reference is 1.07 ~ 1.11 with the ratio of described second reference radius of a circle.
5., according to the indoor apparatus of air conditioner described in claim 3, it is characterized in that,
Described first air-ducting ring is configured as the first air-ducting ring projection line being projected as annular making it in described plane, and described first air-ducting ring projection line comprises outer annular curve and the inner annular curve at described outer annular curvilinear inner; Wherein
There is between the center of described inner annular curve and the projection of the rotation of described centrifugal blower in described plane the first Distance geometry second distance vertically in the horizontal direction.
6., according to the indoor apparatus of air conditioner described in claim 5, it is characterized in that,
The ratio of described second distance and described first distance is 4.5 ~ 5.
7., according to the indoor apparatus of air conditioner described in claim 6, it is characterized in that,
The diameter of described impeller is 260mm ~ 270mm;
Described first distance is 54mm ~ 62mm; And
Described second distance is 270mm ~ 280mm.
8., according to the indoor apparatus of air conditioner described in claim 3, it is characterized in that,
Described wind path wall to comprise from described spiral case antetheca to the air channel antetheca of downward-extension with after described spiral inlet area section extends downward extreme lower position, extends upwardly to the air channel sidewall of described exit zone again, and the front edge of described air channel sidewall connects with described air channel antetheca; Wherein, described air channel antetheca is formed with opening, and described first air-ducting ring extends forward from described opening.
9. indoor apparatus of air conditioner according to claim 1, is characterized in that, described housing comprises:
Back cover, has the rear wall that bottom offers described second air inlet, and extends forward from described rear wall the container cavity wall limiting described enclosure interior spatial accommodation; With
Front panel, is installed on the forward direction opening part of described back cover, and its top offers described first air inlet, and bottom offers described air outlet.
10. indoor apparatus of air conditioner according to claim 9, is characterized in that, also comprises:
Shutter, its lower end is rotatably installed on the front side of described front panel around a transverse horizontal axis, to open or to close described first air inlet; With
Heat exchanger, is arranged on the air intake passage between described centrifugal blower and described first air inlet in described housing, to carry out heat exchange with the surrounding air entered via described first air inlet.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520888116.3U CN205137687U (en) | 2015-11-06 | 2015-11-06 | Air -conditioning indoor unit |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201520888116.3U CN205137687U (en) | 2015-11-06 | 2015-11-06 | Air -conditioning indoor unit |
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| CN205137687U true CN205137687U (en) | 2016-04-06 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105333588A (en) * | 2015-11-06 | 2016-02-17 | 青岛海尔空调器有限总公司 | Air conditioner indoor unit |
| CN110726181A (en) * | 2018-07-16 | 2020-01-24 | 青岛海尔空调器有限总公司 | Air supply assembly and air conditioner indoor unit |
| CN110726178A (en) * | 2018-07-16 | 2020-01-24 | 青岛海尔空调器有限总公司 | Air supply assembly and air conditioner indoor unit |
-
2015
- 2015-11-06 CN CN201520888116.3U patent/CN205137687U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105333588A (en) * | 2015-11-06 | 2016-02-17 | 青岛海尔空调器有限总公司 | Air conditioner indoor unit |
| CN105333588B (en) * | 2015-11-06 | 2019-10-01 | 青岛海尔空调器有限总公司 | Air conditioner indoor unit |
| CN110726181A (en) * | 2018-07-16 | 2020-01-24 | 青岛海尔空调器有限总公司 | Air supply assembly and air conditioner indoor unit |
| CN110726178A (en) * | 2018-07-16 | 2020-01-24 | 青岛海尔空调器有限总公司 | Air supply assembly and air conditioner indoor unit |
| CN110726181B (en) * | 2018-07-16 | 2021-04-20 | 青岛海尔空调器有限总公司 | Air supply assembly and air conditioner indoor unit |
| CN110726178B (en) * | 2018-07-16 | 2021-04-20 | 青岛海尔空调器有限总公司 | Air supply assembly and air conditioner indoor unit |
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