CN212408847U - Indoor unit of air conditioner - Google Patents
Indoor unit of air conditioner Download PDFInfo
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- CN212408847U CN212408847U CN202020264938.5U CN202020264938U CN212408847U CN 212408847 U CN212408847 U CN 212408847U CN 202020264938 U CN202020264938 U CN 202020264938U CN 212408847 U CN212408847 U CN 212408847U
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Abstract
The utility model provides an indoor unit of air conditioner, include: a housing provided with an air inlet; the heat exchanger is arranged in the shell; the duplex centrifugal fan is positioned in the shell and is arranged corresponding to the heat exchanger; the flow guide part is arranged above the air duct outlet and comprises a first flow guide section and a second flow guide section positioned above the first flow guide section; the air outlet cross section of the first flow guide section is gradually changed into a round shape from a square shape, and the first flow guide section rectifies the disordered airflow at the air duct outlet, so that the air speed distribution of the airflow at the air outlet cross section is more uniform; the air outlet cross section of the second flow guide section is circular, and rectified airflow enters the room after passing through the second flow guide section, so that the air supply distance is increased.
Description
Technical Field
The utility model belongs to the technical field of the air conditioner, especially, relate to an indoor unit of air conditioner.
Background
With the improvement of living standard of people, the air conditioner becomes an indispensable electric appliance. Among them, the cabinet air conditioner is the first choice for more and more families because of its better temperature regulation ability than the on-hook. The cabinet air conditioner realizes temperature regulation and control of a larger space and has to have a longer air supply distance and a larger air supply angle. In the conventional cabinet air conditioner, when air is discharged from the air inlet through the air outlet of the air duct in the volute, the air flow at the air outlet is turbulent, so that the static pressure of the air flow is reduced, and the air supply distance is influenced.
Disclosure of Invention
The utility model discloses to above-mentioned air conditioning indoor set wind channel air outlet static pressure is low, influences the technical problem of air supply distance, provides an indoor air conditioner that can realize remote air supply.
In order to achieve the above object, the utility model discloses a technical scheme be:
an indoor unit of an air conditioner, comprising:
the rear part of the shell is provided with an air inlet;
the heat exchanger is arranged in the shell;
the duplex centrifugal fan is positioned in the shell and is arranged corresponding to the heat exchanger;
an air outlet duct is formed in the volute of the duplex centrifugal fan, and an air duct outlet is formed at the top of the air outlet duct;
the flow guide part is arranged above the air duct outlet and comprises a first flow guide section and a second flow guide section positioned above the first flow guide section; the air outlet cross section of the first flow guide section is gradually changed into a round shape from a square shape, the first flow guide section rectifies the disordered air flow at the air duct outlet, the air outlet cross section of the second flow guide section is round, and the rectified air flow passes through the second flow guide section and then enters the room to increase the air supply distance.
The utility model discloses an another technical scheme do:
an indoor unit of an air conditioner, comprising:
the rear part of the shell is provided with an air inlet;
the heat exchanger is arranged in the shell;
the duplex centrifugal fan is positioned in the shell and is arranged corresponding to the heat exchanger;
an air outlet duct is formed in the volute of the duplex centrifugal fan, and an air duct outlet is formed at the top of the air outlet duct;
the flow guide part is arranged above the air duct outlet and comprises a first flow guide section and a second flow guide section positioned above the first flow guide section; the air outlet cross section of the first flow guide section is gradually changed from square to round, the first flow guide section rectifies the disordered airflow at the air duct outlet, and the air outlet cross section of the second flow guide section is gradually changed from round to square so as to increase the static pressure of the airflow at the air outlet and realize the remote air supply of the airflow.
Preferably, the bottom of the second guide section is provided with a rotating mechanism which can enable the second guide section to rotate for 360 degrees.
Preferably, a connecting part is arranged above the volute and comprises a connecting plate horizontally arranged and a mounting plate vertically mounted above the connecting plate.
Preferably, the connecting plate is of an annular plate-shaped structure, the mounting plate is of a hollow cylindrical shape, and the vertical cross-sectional shape formed by the connecting plate and the mounting plate is two side-by-side 〦 shapes.
Preferably, the inward flange of connecting plate upwards extends first water conservancy diversion section, the outside of first water conservancy diversion section is enclosed and is equipped with the mounting panel, the mounting panel with be provided with annular mounting groove between the first water conservancy diversion section, set up in the mounting groove rotary mechanism.
Preferably, the shape of the air duct outlet is square, and is the same as the shape of the bottom of the first flow guide section.
Preferably, the heat exchanger is U-shaped and vertically extends inside the casing to form a U-shaped cavity, and the duplex centrifugal fan is arranged in the U-shaped cavity.
Preferably, an air inlet grille is arranged at the air inlet.
Preferably, a rotatable machine head is arranged above the machine shell, an upper air outlet is arranged in front of the machine head, and the upper air outlet is abutted to the air outlet of the second flow guide section.
Compared with the prior art, the utility model discloses an advantage lies in with positive effect:
1. in an embodiment of the utility model, the air outlet cross section of the first flow guiding section is gradually changed from square to round, which can rectify the turbulent air flow at the outlet of the air channel, so that the air speed distribution of the air flow at the air outlet cross section is more uniform; the air outlet section of the second flow guide section is circular, so that rectified airflow can enter a room after passing through the second flow guide section, and the air supply distance is increased;
2. in another embodiment of the present invention, the air outlet cross section of the first flow guiding section is gradually changed from square to round, which can rectify the turbulent air flow at the outlet of the air duct, so that the air speed distribution of the air flow at the air outlet cross section is more uniform; the air outlet section of the second flow guide section is gradually changed from a round shape to a square shape, so that the static pressure of airflow at the air outlet can be increased, and the remote air supply of the airflow is realized;
3. the utility model discloses a second water conservancy diversion section can carry out 360 degrees rotations, realizes 360 degrees rotatory air-outs, improves indoor temperature distribution, the regulation and control of realization indoor temperature that can be faster. The duplex centrifugal air duct has the characteristics of large air quantity, high pressure and the like, and meets the requirements of different users.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic structural view of the indoor unit of the air conditioner of the present invention;
fig. 2 is a schematic structural view of the indoor unit of the air conditioner at another viewing angle;
FIG. 3 is a schematic top view of the internal structure of the indoor unit of the air conditioner of the present invention;
FIG. 4 is a schematic view of the assembly structure of the heat exchanger and the duplex centrifugal fan of the indoor unit of the air conditioner;
FIG. 5 is an enlarged view of portion A of FIG. 4;
fig. 6 is a schematic view of an assembly structure of a duplex centrifugal fan and a flow guide part of the indoor unit of the air conditioner;
FIG. 7 is a longitudinal cross-sectional view of FIG. 6;
fig. 8 is a schematic structural view of a flow guide portion according to an embodiment of the indoor unit of an air conditioner of the present invention;
FIG. 9 is a cross-sectional view A-A of FIG. 8;
FIG. 10 is a cross-sectional view B-B of FIG. 8;
FIG. 11 is a cross-sectional view C-C of FIG. 8;
fig. 12 is a schematic structural view of a second flow guiding section according to another embodiment of the indoor unit of an air conditioner of the present invention;
FIG. 13 is a cross-sectional view D-D of FIG. 12;
FIG. 14 is a schematic view of the structure of FIG. 8 from another perspective;
fig. 15 is a schematic structural view of the connection portion of the indoor unit of the air conditioner of the present invention.
In the above figures: 10. a housing; 11. an air inlet; 12. an air inlet grille; 20. a heat exchanger; 21. a U-shaped cavity; 211. an open end; 212. a closed end; 30. a duplex centrifugal fan; 31. a volute; 32. an air outlet duct; 321. an air duct outlet; 40. a flow guide part; 41. a first flow guide section; 42. a second flow guide section; 50. A machine head; 51. an upper air outlet; 60. a connecting portion; 61. a connecting plate; 62. and (7) mounting the plate.
Detailed Description
The present invention is specifically described below by way of exemplary embodiments. It should be understood, however, that elements, structures and features of one embodiment may be beneficially incorporated in other embodiments without further recitation.
In the description of the present invention, it is to be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are merely for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, are not to be construed as limiting the present invention.
The terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
For better understanding of the above technical solutions, the following detailed descriptions are provided with reference to the accompanying drawings and specific embodiments.
The utility model discloses an indoor unit of air conditioner, as shown in fig. 1-4, include: a casing 10, a heat exchanger 20, a duplex centrifugal fan 30; an air inlet 11 is arranged at the rear of the casing 10, indoor air enters the casing 10 through the air inlet 11, the heat exchanger 20 is arranged in the casing 10, the duplex centrifugal fan 30 is also arranged in the casing 10 and corresponds to the heat exchanger 20, an air outlet duct 32 is formed in the volute 31 of the duplex centrifugal fan 30, an air outlet 321 is formed at the top of the air outlet duct 32, and the air enters the air outlet duct 32 after passing through the air inlet 11, cooling/heating of the heat exchanger 20, and enters the indoor space after passing through the air outlet 321.
As an embodiment of the present invention, in order to rectify the air flow guided out from the air duct outlet 321, so as to make the air speed distribution of the air flow at the air outlet cross section more uniform and increase the air supply distance, as shown in fig. 5-7, the air duct outlet 321 above the air outlet duct 32 is provided with a flow guiding portion 40, and the flow guiding portion 40 is of an upper and lower structure, which is a first flow guiding section 41 and a second flow guiding section 42 located above the first flow guiding section 41; as shown in fig. 8 to 11, the projection profile of the first flow guiding section 41 on the horizontal projection plane gradually changes from a square shape to a circular shape, as shown in fig. 9, the projection profile of the first flow guiding section 41 on the horizontal projection plane is a square shape, and as can be seen from fig. 10, the contour line of the first flow guiding section 41 gradually presents an arc shape; as can be seen from fig. 11, the projection profile of the first flow guiding section 41 is a complete circle; that is to say, the air outlet section of the first flow guiding section 41 is gradually changed from a square shape to a circular shape; the second guide section 42 is a curved arc section, and a projection profile of the second guide section 42 on the side vertical projection surface is circular, that is, an air outlet cross section of the second guide section 42 is circular, which is not shown in the figure. The change of the air outlet cross section shape of the first air guiding section 41 can effectively rectify the turbulent air flow at the air duct outlet 321, so that the air speed distribution of the air flow at the air outlet cross section of the first air guiding section 41 is more uniform, and the rectified air flow enters the indoor space after passing through the second air guiding section 42, thereby increasing the air supply distance.
As another embodiment of the present invention, a flow guiding portion 40 is disposed at the upper air duct outlet 321 of the air outlet duct 32, the flow guiding portion is of an up-down structure, and includes a first flow guiding section 41 located below and a second flow guiding section 42 located above the first flow guiding section 41, as shown in fig. 8-11, a projection profile of the first flow guiding section 41 on the horizontal projection plane is gradually changed from a square shape to a circular shape, as shown in fig. 9, a projection profile of the first flow guiding section 41 on the horizontal projection plane is a square shape, and as can be seen from fig. 10, a contour line of the first flow guiding section 41 gradually presents an arc shape; as can be seen from fig. 11, the projection profile of the first flow guiding section 41 is a complete circle; that is to say, the air outlet section of the first flow guiding section 41 is gradually changed from a square shape to a circular shape; as shown in fig. 12-13, the second flow guiding section 42 is a curved arc section, the air outlet cross section of the second flow guiding section 42 gradually changes from circular to square, and the shape of the cross section of the air inlet at the bottom end of the second flow guiding section 42 is the same as the shape of the cross section of the air outlet of the first flow guiding section 41, i.e., the cross section is circular and gradually changes to square, as shown in fig. 13; first wind guiding section 41 cross-section is become the circular turbulent air current that can be effectual with wind channel outlet 321 department by the square and rectifies for the air speed distribution that flows out from first water conservancy diversion section 41 is more even, and second water conservancy diversion section 42 air-out cross-section is become the static pressure that the square can effectual increase air outlet air current by the circular, realizes the remote air supply of air current.
In order to improve indoor temperature distribution quickly and realize indoor temperature regulation and control more quickly, the bottom of the second flow guide section 42 is provided with a rotating mechanism which can enable the rotating mechanism to rotate by 360 degrees, the rotating structure is a common structure in the prior art, for example, the rotating mechanism can comprise an annular slide rail arranged on the outer wall of the second flow guide section 42, the annular slide rail is connected with a driving motor, the driving motor drives the annular slide rail to rotate, the annular slide rail drives the second flow guide section 42 to rotate, so that the air outlet of the second flow guide section 42 rotates by 360 degrees, and rectified air flow blown out from the second flow guide section 42 can be blown to indoor places, so that indoor temperature regulation and control are realized quickly.
In order to fix and support the volute casing 31, the components arranged around the volute casing 31, the flow guide part 40 above the volute casing 31 and the machine head 50 and ensure the stability of the structure of the indoor unit, as shown in fig. 14, a connecting part 60 is arranged above the volute casing 31, the connecting part 60 comprises a connecting plate 61 horizontally arranged and a mounting plate 62 vertically arranged above the connecting plate 61, the connecting plate 61 is a horizontal annular plate-shaped structure, the mounting plate 62 is hollow and cylindrical, the cross sections of the connecting plate 61 and the mounting plate 62 are two side-by-side 〦 shapes, and the connecting plate 61 fixes, connects and supports the volute casing 31 and the adjacent components thereof.
The inward flange of connecting plate 61 upwards extends first water conservancy diversion section 41, the outside of first water conservancy diversion section 41 is enclosed and is equipped with mounting panel 62, mounting panel 62 with be provided with the annular mounting groove between the first water conservancy diversion section 41, set up in the mounting groove rotary mechanism, rotary mechanism's annular slide rail are installed in the mounting groove, and the mounting groove has injectd the rotatory orbit of second water conservancy diversion section 42, makes second water conservancy diversion section 42 can 360 rotations, enlarges the air supply scope.
In order to enable the air flow of the air outlet duct 32 to enter the first flow guiding section 41 from the air duct outlet 321 without obstruction and reduce the air flow loss, the shape of the air duct outlet 321 is square and is the same as the bottom shape of the first flow guiding section 41, so that the air flow of the air outlet duct 32 is pre-rectified when flowing from the air duct outlet 321 to the first flow guiding section 41, the turbulence degree of the air flow is reduced, and the loss of the air flow in the flowing process is reduced.
Further, in order to increase the heat exchange efficiency of the heat exchanger 20, the heat exchanger 20 is vertically extended in a U shape and is arranged inside the casing 10, and a U-shaped cavity 21 is formed, the duplex centrifugal fan 30 is arranged in the U-shaped cavity 21, the direction of the open end 211 of the U-shaped cavity 21 deviates from the air inlet 11, the U-shaped cavity 21 is close to the air inlet 11 and is a closed end 212, the duplex centrifugal fan 3 is surrounded by three sides of the heat exchanger 20, that is, when the duplex centrifugal fan 3 operates, the inlet air on the two sides can pass through the heat exchanger 20, even when the angle of the inlet air direction deviating from the central axis of the duplex centrifugal fan 3 is large, the inlet air can still pass through the heat exchanger 20, the air circulation of the heat exchanger 20 is increased, and the.
In order to reduce the degree of air flow disorder at the air inlet 11 and reduce noise during air intake, the air inlet grille 12 is arranged at the air inlet 11, air enters the air inlets at two sides of the duplex centrifugal fan 30 through the air inlet grille 12, the air flow direction tends to be stable after the air is guided by the air inlet grille 12, and air flow crosstalk is reduced in the process of flowing towards the duplex centrifugal fan 30.
The above description is only for the specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art can easily think of the changes or substitutions within the technical scope of the present invention, and all should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (10)
1. An indoor unit of an air conditioner, comprising:
the rear part of the shell is provided with an air inlet;
the heat exchanger is arranged in the shell;
the duplex centrifugal fan is positioned in the shell and is arranged corresponding to the heat exchanger;
an air outlet duct is formed in the volute of the duplex centrifugal fan, and an air duct outlet is formed at the top of the air outlet duct;
the flow guide part is arranged above the air duct outlet and comprises a first flow guide section and a second flow guide section positioned above the first flow guide section; the air outlet cross section of the first flow guide section is gradually changed from square to round, the first flow guide section rectifies the disordered airflow at the air duct outlet, the air outlet cross section of the second flow guide section is round, and the rectified airflow enters the room after passing through the second flow guide section.
2. An indoor unit of an air conditioner, comprising:
the rear part of the shell is provided with an air inlet;
the heat exchanger is arranged in the shell;
the duplex centrifugal fan is positioned in the shell and is arranged corresponding to the heat exchanger;
an air outlet duct is formed in the volute of the duplex centrifugal fan, and an air duct outlet is formed at the top of the air outlet duct;
the flow guide part is arranged above the air duct outlet and comprises a first flow guide section and a second flow guide section positioned above the first flow guide section; the air outlet cross section of the first flow guide section is gradually changed into a round shape from a square shape, the first flow guide section rectifies the disordered airflow at the air duct outlet, and the air outlet cross section of the second flow guide section is gradually changed into a square shape from a round shape.
3. An indoor unit of an air conditioner according to claim 1 or 2, wherein a rotating mechanism is provided at the bottom of the second air guide section.
4. An indoor unit of an air conditioner according to claim 3, wherein a connecting portion is provided above the scroll casing, and the connecting portion includes a connecting plate disposed horizontally and a mounting plate mounted vertically above the connecting plate.
5. An indoor unit of an air conditioner according to claim 4, wherein the connecting plate has an annular plate-like structure, the mounting plate has a hollow cylindrical shape, and the vertical sectional shape formed by the connecting plate and the mounting plate is two side-by-side 〦 -shaped.
6. An indoor unit of an air conditioner according to claim 4, wherein the inner edge of the connecting plate extends out of the first flow guide section upwards, the mounting plate is arranged around the outer side of the first flow guide section, an annular mounting groove is arranged between the mounting plate and the first flow guide section, and the rotating mechanism is arranged in the mounting groove.
7. An indoor unit of an air conditioner according to claim 1 or 2, wherein the outlet of the air duct has a square shape and is the same as the bottom of the first guide section.
8. An indoor unit of an air conditioner as claimed in claim 7, wherein the heat exchanger is U-shaped and extends vertically inside the casing to form a U-shaped cavity, and the duplex centrifugal fan is disposed in the U-shaped cavity.
9. An indoor unit of an air conditioner according to claim 8, wherein an air inlet grille is provided at the air inlet.
10. An indoor unit of an air conditioner as claimed in claim 9, wherein a rotatable head is provided above the casing, an upper air outlet is provided in front of the head, and the upper air outlet abuts against the air outlet of the second air guide section.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020264938.5U CN212408847U (en) | 2020-03-05 | 2020-03-05 | Indoor unit of air conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020264938.5U CN212408847U (en) | 2020-03-05 | 2020-03-05 | Indoor unit of air conditioner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212408847U true CN212408847U (en) | 2021-01-26 |
Family
ID=74377876
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020264938.5U Active CN212408847U (en) | 2020-03-05 | 2020-03-05 | Indoor unit of air conditioner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212408847U (en) |
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2020
- 2020-03-05 CN CN202020264938.5U patent/CN212408847U/en active Active
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