CN111120372A - Air duct device and air conditioner indoor unit with same - Google Patents

Air duct device and air conditioner indoor unit with same Download PDF

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Publication number
CN111120372A
CN111120372A CN201911419443.3A CN201911419443A CN111120372A CN 111120372 A CN111120372 A CN 111120372A CN 201911419443 A CN201911419443 A CN 201911419443A CN 111120372 A CN111120372 A CN 111120372A
Authority
CN
China
Prior art keywords
air
air inlet
air duct
indoor unit
duct device
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201911419443.3A
Other languages
Chinese (zh)
Inventor
董明珠
吴晓岳
王千千
何振健
陈诚
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Gree Electric Appliances Inc of Zhuhai
Original Assignee
Gree Electric Appliances Inc of Zhuhai
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Gree Electric Appliances Inc of Zhuhai filed Critical Gree Electric Appliances Inc of Zhuhai
Priority to CN201911419443.3A priority Critical patent/CN111120372A/en
Publication of CN111120372A publication Critical patent/CN111120372A/en
Pending legal-status Critical Current

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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04DNON-POSITIVE-DISPLACEMENT PUMPS
    • F04D25/00Pumping installations or systems
    • F04D25/02Units comprising pumps and their driving means
    • F04D25/08Units comprising pumps and their driving means the working fluid being air, e.g. for ventilation
    • F04D25/10Units comprising pumps and their driving means the working fluid being air, e.g. for ventilation the unit having provisions for automatically changing direction of output air
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04DNON-POSITIVE-DISPLACEMENT PUMPS
    • F04D17/00Radial-flow pumps, e.g. centrifugal pumps; Helico-centrifugal pumps
    • F04D17/08Centrifugal pumps
    • F04D17/16Centrifugal pumps for displacing without appreciable compression
    • F04D17/162Double suction pumps
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04DNON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00Details, component parts, or accessories
    • F04D29/26Rotors specially for elastic fluids
    • F04D29/28Rotors specially for elastic fluids for centrifugal or helico-centrifugal pumps for radial-flow or helico-centrifugal pumps
    • F04D29/281Rotors specially for elastic fluids for centrifugal or helico-centrifugal pumps for radial-flow or helico-centrifugal pumps for fans or blowers
    • F04D29/282Rotors specially for elastic fluids for centrifugal or helico-centrifugal pumps for radial-flow or helico-centrifugal pumps for fans or blowers the leading edge of each vane being substantially parallel to the rotation axis
    • F04D29/283Rotors specially for elastic fluids for centrifugal or helico-centrifugal pumps for radial-flow or helico-centrifugal pumps for fans or blowers the leading edge of each vane being substantially parallel to the rotation axis rotors of the squirrel-cage type
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04DNON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00Details, component parts, or accessories
    • F04D29/40Casings; Connections of working fluid
    • F04D29/42Casings; Connections of working fluid for radial or helico-centrifugal pumps
    • F04D29/4206Casings; Connections of working fluid for radial or helico-centrifugal pumps especially adapted for elastic fluid pumps
    • F04D29/4226Fan casings
    • F04D29/4233Fan casings with volutes extending mainly in axial or radially inward direction
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04DNON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00Details, component parts, or accessories
    • F04D29/40Casings; Connections of working fluid
    • F04D29/42Casings; Connections of working fluid for radial or helico-centrifugal pumps
    • F04D29/4206Casings; Connections of working fluid for radial or helico-centrifugal pumps especially adapted for elastic fluid pumps
    • F04D29/4226Fan casings
    • F04D29/424Double entry casings
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04DNON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00Details, component parts, or accessories
    • F04D29/40Casings; Connections of working fluid
    • F04D29/42Casings; Connections of working fluid for radial or helico-centrifugal pumps
    • F04D29/4206Casings; Connections of working fluid for radial or helico-centrifugal pumps especially adapted for elastic fluid pumps
    • F04D29/4226Fan casings
    • F04D29/4246Fan casings comprising more than one outlet
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F1/00Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
    • F24F1/0007Indoor units, e.g. fan coil units
    • F24F1/0011Indoor units, e.g. fan coil units characterised by air outlets
    • F24F1/0014Indoor units, e.g. fan coil units characterised by air outlets having two or more outlet openings
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F1/00Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
    • F24F1/0007Indoor units, e.g. fan coil units
    • F24F1/0018Indoor units, e.g. fan coil units characterised by fans
    • F24F1/0022Centrifugal or radial fans
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F1/00Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
    • F24F1/0007Indoor units, e.g. fan coil units
    • F24F1/0059Indoor units, e.g. fan coil units characterised by heat exchangers
    • F24F1/0063Indoor units, e.g. fan coil units characterised by heat exchangers by the mounting or arrangement of the heat exchangers

Abstract

The invention provides an air duct device and an air conditioner indoor unit with the same, wherein the air duct device comprises: a fan blade structure; the air duct shell is provided with a first air inlet part, a second air inlet part, a first air outlet part and a second air outlet part, and the first air inlet part and the second air inlet part are arranged oppositely; the fan blade structure is arranged in the air duct shell, and a first air inlet of the first fan blade part is arranged opposite to the first air inlet part so as to supply air through the first air inlet part; the second air inlet of the second fan blade part is opposite to the second air inlet part so as to supply air through the second air inlet part; the movable volute is movably arranged in the air duct shell and provided with a communication port, and the movable volute is provided with a first communication position and a second communication position; when the movable volute is in the first communication position, the communication port is communicated with the first air outlet part; when the movable volute is in the second communication position, the communication port is communicated with the second air outlet portion. The technical problem that the cost of an air duct device in the prior art is high is solved.

Description

Air duct device and air conditioner indoor unit with same
Technical Field
The invention relates to the technical field of air conditioning equipment, in particular to an air duct device and an air conditioner indoor unit with the same.
Background
At present, the common upper and lower air outlet distributed air supply air conditioner is popular due to the excellent comfort. The distributed air supply air conditioner generally adopts structures such as a double-fan air duct, a three-fan air duct and the like as main structures.
However, the air duct structure of the double-fan air duct and the three-fan air duct in the prior art occupies a large space, and the air duct component is also heavy in overall weight and high in cost.
Disclosure of Invention
The invention mainly aims to provide an air duct device and an air conditioner indoor unit with the same, and aims to solve the technical problem that the air duct device in the prior art is high in cost.
In order to achieve the above object, according to one aspect of the present invention, there is provided an air duct device including: the fan blade structure comprises a first fan blade part, a baffle and a second fan blade part, wherein the baffle is arranged between the first fan blade part and the second fan blade part; the air duct shell is provided with a first air inlet part, a second air inlet part, a first air outlet part and a second air outlet part, the first air inlet part and the second air inlet part are oppositely arranged, the first air outlet part and the second air outlet part are arranged at intervals, the first air outlet part and the second air outlet part are both communicated with the first air inlet part, and the first air outlet part and the second air outlet part are both communicated with the second air inlet part; the fan blade structure is arranged in the air duct shell, and a first air inlet of the first fan blade part is arranged opposite to the first air inlet part so as to supply air through the first air inlet part; the second air inlet of the second fan blade part is opposite to the second air inlet part so as to supply air through the second air inlet part; the movable volute is movably arranged in the air duct shell and provided with a communication port, and the movable volute is provided with a first communication position and a second communication position; when the movable volute is in the first communication position, the communication port is communicated with the first air outlet part; when the movable volute is in the second communication position, the communication port is communicated with the second air outlet portion.
Further, the air duct device further includes: the supporting component is arranged on the air duct shell; and the driving motor is arranged on the supporting component and is connected with the fan blade structure so as to drive the fan blade structure to rotate through the driving motor.
Further, the support assembly includes: the first support frame is arranged at the first air inlet part, and one end of the driving motor is arranged on the first support frame; the second support frame is arranged at the second air inlet part, and the other end of the driving motor is arranged on the second support frame.
Further, first support arm includes first support arm and second support arm, and the middle part of first support arm and the middle part of second support arm are connected and are set up, and the tip of first support arm and the tip of second support arm all set up on the wind channel casing.
Furthermore, the movable volute is of an arc-shaped structure, and an arc-shaped groove matched with the arc-shaped structure is formed in the air duct shell, so that the air duct shell can be rotatably arranged in the arc-shaped groove.
Furthermore, the arc-shaped grooves comprise a first arc-shaped groove and a second arc-shaped groove, the first arc-shaped groove and the second arc-shaped groove are oppositely arranged on two sides of the air duct shell, one end of the movable volute is rotatably arranged in the first arc-shaped groove, and the other end of the movable volute is rotatably arranged in the second arc-shaped groove.
Furthermore, the track device also comprises a guide ring sleeved at the end part of the movable volute so as to enable the guide ring to be rotatably arranged in the arc-shaped groove through the movable volute.
Further, the air duct device also comprises a guide ring; a flow guide ring is arranged at the first air inlet part; and/or a flow guide ring is arranged at the second air inlet part.
According to another aspect of the present invention, there is provided an air conditioning indoor unit including: an indoor unit casing; and the air duct device is arranged in the shell of the indoor unit and is the air duct device.
Furthermore, a first air opening and a second air opening are formed in the indoor unit shell, the air duct device is located between the first air opening and the second air opening, the first air opening is used for being communicated with a first air outlet portion of the air duct device, and the second air opening is used for being communicated with a second air outlet portion of the air duct device.
Further, the air conditioning indoor unit further includes: and the heat exchanger assembly is arranged on one side of the air duct device close to the first air port so as to exchange heat for the air flow through the heat exchanger assembly.
Furthermore, a third air inlet portion is further arranged on the indoor unit shell, and the third air inlet portion is arranged opposite to the first air inlet portion of the air duct device, so that air flow flows into the first air inlet portion of the air duct device through the third air inlet portion.
Furthermore, a fourth air inlet portion is arranged on the indoor unit shell and is opposite to the second air inlet portion of the air duct device, so that air flow flows into the second air inlet portion of the air duct device from the fourth air inlet portion.
By applying the technical scheme of the invention, the movable volute can be conveniently moved to the first communication position or the second communication position by rotating the movable volute, so that air can be discharged through the first air outlet part or the second air outlet part according to the cold and hot characteristics of air. Therefore, the technical problem that the cost of the air duct device in the prior art is high can be solved through the technical scheme provided by the invention.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the invention and, together with the description, serve to explain the invention and not to limit the invention. In the drawings:
FIG. 1 illustrates an exploded view of a ducting arrangement provided in accordance with an embodiment of the present invention;
FIG. 2 illustrates a front view of a ducting arrangement provided in accordance with an embodiment of the present invention;
FIG. 3 illustrates a left side view of a wind tunnel device provided in accordance with an embodiment of the present invention;
FIG. 4 illustrates a right side view of a wind tunnel device provided in accordance with an embodiment of the present invention;
fig. 5 illustrates a front view of an air conditioning indoor unit according to a second embodiment of the present invention;
fig. 6 is a rear view of an indoor unit of an air conditioner according to a second embodiment of the present invention;
fig. 7 is a schematic view illustrating the air flow direction of the air conditioner indoor unit when air is discharged through the first air outlet according to the second embodiment of the present invention; and
fig. 8 is a schematic view illustrating the air flow direction of the air conditioning indoor unit when air is discharged through the second air outlet according to the second embodiment of the present invention.
Wherein the figures include the following reference numerals:
10. a fan blade structure; 11. a first blade portion; 12. a baffle plate; 13. a second blade portion; 20. an air duct housing; 21. a first air inlet portion; 22. a second air inlet portion; 23. a first air outlet part; 24. a second air outlet part; 30. a movable volute; 40. a support assembly; 41. a first support frame; 411. a first support arm; 412. a second support arm; 42. a second support frame; 50. a drive motor; 60. a guide ring; 70. a flow guide ring; 80. an indoor unit casing; 81. a first tuyere; 82. a second tuyere; 83. a third air intake portion; 84. a fourth air inlet portion; 90. a heat exchanger assembly; 100. a volute motor; 110. a first gear structure; 120. a second gear structure; 130. and a bearing.
Detailed Description
It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.
As shown in fig. 1 to 4, a first embodiment of the present invention provides an air duct device, which includes a fan blade structure 10, an air duct casing 20, and a movable volute 30, where the fan blade structure 10 includes a first fan blade portion 11, a baffle plate 12, and a second fan blade portion 13, and the baffle plate 12 is disposed between the first fan blade portion 11 and the second fan blade portion 13, so as to block an air flow between the first fan blade portion 11 and the second fan blade portion 13 from moving through the baffle plate 12. The first blade part 11 and the second blade part 13 both comprise centrifugal blades. Be provided with first air inlet portion 21, second air inlet portion 22, first air-out portion 23 and second air-out portion 24 on the wind channel casing 20, first air inlet portion 21 sets up with second air inlet portion 22 relatively, and first air-out portion 23 sets up with second air-out portion 24 interval, and first air-out portion 23 and second air-out portion 24 all communicate with first air inlet portion 21, and first air-out portion 23 and second air-out portion 24 all communicate with second air-out portion 22.
Specifically, the first blade portion 11 in this embodiment may include a plurality of first blade structures, the plurality of first blade structures are arranged at intervals along a first preset direction, and correspondingly, the second blade portion 13 may also include a plurality of second blade structures, the plurality of second blade structures are arranged at intervals along a second preset direction, and the first preset direction is parallel to the second preset direction. Or, the first blade portion in this embodiment includes a first blade structure, and correspondingly, the second blade portion includes a second blade structure, and the first blade structure and the second blade structure are arranged opposite to each other.
In this embodiment, the fan blade structure 10 is disposed in the air duct housing 20, and the first air inlet of the first fan blade portion 11 is disposed opposite to the first air inlet portion 21, so as to intake air through the first air inlet portion 21; the second air inlet of the second fan blade portion 13 is disposed opposite to the second air inlet portion 22, so as to supply air through the second air inlet portion 22. The movable volute 30 is movably arranged in the air duct shell 20, a communication port is formed in the movable volute 30, and the movable volute 30 is provided with a first communication position and a second communication position; when the movable scroll 30 is at the first communicating position, the communicating port communicates with the first air outlet portion 23; when the movable scroll 30 is at the second communication position, the communication port communicates with the second air-out portion 24.
With the air duct device provided in this embodiment, by moving the movable scroll 30 to the first communicating position, the communicating opening communicates with the first air outlet portion 23, so that the airflow entering the first fan blade portion 11 through the first air inlet portion 21 will be discharged from the first air outlet portion 23, and the airflow entering the second fan blade portion 13 through the second air inlet portion 22 will also be discharged from the first air outlet portion 23. By moving the movable scroll 30 to the second communicating position, the communicating port communicates with the second air outlet portion 24, so that the airflow entering the first blade portion 11 through the first air inlet portion 21 will be discharged from the second air outlet portion 24, and the airflow entering the second blade portion 13 through the second air inlet portion 22 will also be discharged from the second air outlet portion 24. Specifically, can set up first air-out portion 23 in the top of second air-out portion 24 in this embodiment, first air-out portion 23 sets up at the top of wind channel casing 20, second air-out portion 24 sets up in the bottom of wind channel casing 20, and the air-out direction of first air-out portion 23 is vertical direction, the air-out direction of second air-out portion 24 can be horizontal direction or with the ascending extending direction of horizontal direction slope, adopt such setting, can be convenient for better through first air-out portion 23 or the air-out of second air-out portion 24. The first air inlet portion 21 and the second air inlet portion 22 are located on the side portion of the air duct shell 20, the first air inlet portion 21 and the second air inlet portion 22 are arranged oppositely, and the first air inlet portion 21 and the second air inlet portion 22 are located between the first air outlet portion 23 and the second air outlet portion 24.
With the air duct device provided in this embodiment, because the first air outlet portion 23 is located at the upper end of the second air outlet portion 24, according to the airflow characteristics of the hot air rising and the cold air falling, when the air duct shell 20 is a low-temperature airflow, air is discharged through the first air outlet portion 23; when the air duct casing 20 is filled with high-temperature air, air is discharged through the second air outlet portion 24. By adopting the arrangement, the circulation of air flow can be facilitated, the function of up-down convection can be realized, and distributed air supply is carried out, so that the comfort is improved. Meanwhile, the air duct device in the embodiment can utilize the distribution characteristics of an indoor vertical temperature field, and can perform vertical circulating heat exchange so as to improve the heat exchange efficiency.
In this embodiment, the first blade portion and the second blade portion are both centrifugal blade portions, the air duct device in this embodiment utilizes the air suction and exhaust characteristics of a centrifugal fan, and simultaneously, through the structure of a movable volute (the movable volute is a rotatable volute), different air duct air outlet modes are realized through the change of an internal structure, so that the up-and-down convection is conveniently realized, and the up-and-down circulation convection is realized under the cooling and heating mode. Specifically, air is discharged from an upper air port (a first air port) and returned from a lower air port (a second air port) during refrigeration, and air is discharged from the lower air port (the second air port) and returned from the upper air port (the first air port) during heating, so that vertical circulating heat exchange is performed according to indoor temperature field distribution, and the heat exchange efficiency is improved.
In the present embodiment, the air duct device further includes a support assembly 40 and a driving motor 50, and the support assembly 40 is disposed on the air duct housing 20. The driving motor 50 is provided on the support assembly 40 to support the driving motor 50 through the support assembly 40 to improve the stability of the arrangement of the driving motor 50. Specifically, the support assembly 40 is disposed at an end of the driving motor 50. The driving motor 50 is connected with the fan blade structure 10, so as to drive the fan blade structure 10 to rotate through the driving motor 50.
Specifically, the support assembly 40 in this embodiment includes a first support frame 41 and a second support frame 42, the first support frame 41 is disposed at the first air inlet portion 21, and one end of the driving motor 50 is disposed on the first support frame 41. The second support bracket 42 is provided at the second air inlet portion 22, and the other end of the driving motor 50 is provided on the second support bracket 42. With this arrangement, the stability of the installation of the drive motor 50 can be further improved. Specifically, the air duct device in this embodiment further includes a bearing 130, the bearing 130 is sleeved on the output shaft of the driving motor 50, the bearing 130 is disposed on the first support frame 41, the output shaft of the driving motor 50 is disposed on the first support frame 41 in a penetrating manner, and the main body portion of the driving motor 50 is disposed on the second support frame 42, so as to better support the driving motor 50.
In order to further improve the stability of the support, the first support frame 41 in this embodiment includes a first support arm 411 and a second support arm 412, a middle portion of the first support arm 411 and a middle portion of the second support arm 412 are connected, and an end portion of the first support arm 411 and an end portion of the second support arm 412 are both disposed on the air duct housing 20. Specifically, the first support arm 411 and the second support arm 412 are disposed to intersect at a predetermined angle, so as to improve the support stability.
The second support frame 42 in this embodiment includes a third support arm and a fourth support arm, the middle portion of the third support arm and the middle portion of the fourth support arm are connected to be disposed, and the end portion of the third support arm and the end portion of the fourth support portion are disposed on the air duct housing 20. Specifically, the third supporting arm and the fourth supporting arm are arranged in a crossed mode at a preset angle, so that the supporting stability is further improved.
In this embodiment, the movable spiral case 30 is an arc-shaped structure, and the air duct housing 20 is provided with an arc-shaped groove adapted to the arc-shaped structure, so that the air duct housing 20 is rotatably disposed in the arc-shaped groove, so that the movable spiral case 30 moves to the first communicating position or the second communicating position, and the stability of the movement is improved.
Specifically, the arc-shaped grooves in this embodiment include a first arc-shaped groove and a second arc-shaped groove, the first arc-shaped groove and the second arc-shaped groove are oppositely disposed on two sides of the air duct housing 20, one end of the movable volute 30 is rotatably disposed in the first arc-shaped groove, and the other end of the movable volute 30 is rotatably disposed in the second arc-shaped groove. With such an arrangement, the first arc-shaped groove and the second arc-shaped groove can be used for guiding the movement of the movable volute 30 better, so that the movable volute 30 can rotate in the air duct shell 20 stably, and the movement stability is further improved.
In order to further enable the movable volute 30 to smoothly rotate in the air duct housing 20, the duct device in this embodiment further includes a guide ring 60, and the guide ring 60 is sleeved on the end portion of the movable volute 30, so that the guide ring 60 is rotatably disposed in the arc-shaped groove through the movable volute 30. Specifically, the number of the guide rings 60 in this embodiment is two, and the two guide rings 60 are respectively disposed at two ends of the movable scroll casing 30, so as to further improve the rotation fluency of the movable scroll casing 30.
Specifically, the air duct device in this embodiment further includes a deflector ring 70. A guide ring 70 may be provided at the first air inlet portion 21; or a guide ring 70 is arranged at the second air inlet part 22; or the guide rings 70 are arranged at the first air inlet part 21 and the second air inlet part 22. Preferably, in order to facilitate better air intake, a flow guiding ring 70 is arranged at each of the first air inlet portion 21 and the second air inlet portion 22, so that air flow is guided into the first air inlet portion 21 and the second air inlet portion 22 through the flow guiding ring 70.
In this embodiment, the air duct device further includes a volute motor 100, a first gear structure 110, and a second gear structure 120, the volute motor 100 is disposed on the air duct housing 20, the volute motor 100 drives the first gear structure 110 to rotate, the second gear structure 120 is engaged with the first gear structure 110, the second gear structure 120 is an annular structure, and the second gear structure 120 is disposed on the movable volute 30. With such an arrangement, when the volute motor 100 works, the first gear structure 110 is driven to rotate, the second gear structure 120 is driven to rotate through the first gear structure 110, and then the movable volute 30 is driven to rotate, so that the movable volute 30 moves to the first flow-through state or the second flow-through state.
In the present embodiment, the air duct device is assembled as follows: firstly, two guide rings 60 are respectively arranged at two ends of the movable volute 30; secondly, assembling the preassembled movable volute 30 and the air duct shell 20, transitionally assembling the two guide rings 60 and the air duct shell 20, and fixing the radial positions by using screws; thirdly, assembling the driving motor 50 with an upper bracket of the air duct, and fixing the driving motor and the upper bracket of the air duct through four screws; fourthly, assembling the double centrifugal fan blades (the first fan blade part 11 and the second fan blade part 13) and the volute motor 100, and locking the double centrifugal fan blades by nuts; fifthly, assembling the guide ring and the movable volute 30, limiting through a spiral groove, and fixing through a screw; sixthly, pre-assembling and interference assembling the driving motor 50 and the support assembly 40; seventhly, fixing the preassembled supporting component 40 and the driving motor 50 through screws; finally, the volute motor 100 and the first gear structure 110 are assembled with the air duct, and the gears are limited through screws.
As shown in fig. 5 to 8, a second embodiment of the present invention provides an air conditioning indoor unit, which includes an indoor unit casing 80 and an air duct device, wherein the air duct device is disposed in the indoor unit casing 80, and the air duct device is the air duct device provided in the first embodiment. Specifically, the air duct device is spaced from the indoor unit casing 80 so as to allow the airflow to flow into the first air inlet portion 21 and the second air inlet portion 22 from the gap between the air duct device and the indoor unit casing 80. By adopting the air-conditioning indoor unit provided by the embodiment, when the air-conditioning indoor unit is in a refrigeration mode, the air can be discharged from the first air outlet part 23 of the air duct device; when the indoor unit of the air conditioner is in the heating mode, the air can be discharged from the second air outlet portion 24 of the air duct device. Therefore, the convection of the airflow is facilitated, the circulation of the airflow is facilitated, and the function of the up-and-down convection is facilitated.
Specifically, the indoor unit casing 80 in this embodiment is provided with a first air opening 81 and a second air opening 82, the air duct device is located between the first air opening 81 and the second air opening 82, the first air opening 81 is used for communicating with the first air outlet portion 23 of the air duct device, and the second air opening 82 is used for communicating with the second air outlet portion 24 of the air duct device. In this embodiment, the first air opening 81 is located above the second air opening 82, and when the air-conditioning indoor unit is in the cooling mode, the air discharged from the first air outlet portion 23 of the air duct device flows out through the first air opening 81; when the air conditioning indoor unit is in the heating mode, the air discharged from the second air outlet portion 24 of the air duct device flows out through the second air outlet 82.
In this embodiment, the indoor unit of the air conditioner further includes a heat exchanger assembly 90, and the heat exchanger assembly 90 is disposed on a side of the air duct device close to the first air opening 81, so as to exchange heat with the air flow through the heat exchanger assembly 90. Specifically, when the air conditioning indoor unit is in the cooling mode, after the air flow is discharged through the first air outlet portion 23 of the air duct device, the air flow is discharged from the first air port 81 after heat exchange is performed by the heat exchanger assembly 90. When the air conditioning indoor unit is in the heating mode, the air flow enters the air duct shell 20 through the first air inlet portion 21 after being subjected to heat exchange through the heat exchanger assembly 90, then the air flow is discharged through the second air outlet portion 24, and finally the air flow flows out through the second air outlet 82.
In order to facilitate the air introduction into the indoor unit casing 80, the indoor unit casing 80 in this embodiment is further provided with a third air inlet portion 83, and the third air inlet portion 83 is disposed opposite to the first air inlet portion 21 of the air duct device, so that the air flow flows into the first air inlet portion 21 of the air duct device through the third air inlet portion 83. When the air conditioning indoor unit is in the cooling mode, a part of air flows into the first air inlet portion 21 through the second air inlet 82, and a part of air flows into the first air inlet portion 21 through the third air inlet portion 83, so that air can be better induced into the indoor unit casing 80, and the air flow can be better subjected to heat exchange. When the air conditioning indoor unit is in the heating mode, the third air intake portion 83 is in the closed state to prevent the third air intake portion 83 from communicating with the outside air flow.
In order to better facilitate the air induction into the indoor unit casing 80, the indoor unit casing 80 of the present embodiment is provided with a fourth air inlet portion 84, and the fourth air inlet portion 84 is disposed opposite to the second air inlet portion 22 of the air duct device, so that the air flow flows into the second air inlet portion 22 of the air duct device through the fourth air inlet portion 84. The third air inlet 83 and the fourth air inlet 84 are oppositely disposed on two sides of the indoor unit casing 80, when the air conditioning indoor unit is in the cooling mode, a part of air flows into the second air inlet 22 through the second air inlet 82, and a part of air flows into the second air inlet 22 through the fourth air inlet 84, so that air can be better induced into the indoor unit casing 80, and the air flow can be better heat exchanged. When the air conditioning indoor unit is in the heating mode, the fourth air inlet portion 84 is in the closed state, so as to prevent the fourth air inlet portion 84 from being communicated with the outside air flow.
The air duct device in this embodiment adopts a double-suction centrifugal fan structure, the lower air inlet and the upper air outlet are in a refrigeration mode, the volute motor 100 inside the air duct drives the first gear structure 110 to rotate, the second gear structure 120 is engaged with the first gear structure 110, so as to drive the movable volute 30 to rotate through the second gear structure 120, so that the movable volute 30 is in a first communication state, the movable volute 30 and the upper portion of the air duct casing 20 form a completed volute profile, the third air inlet portion 83 and the fourth air inlet portion 84 of the indoor unit casing 80 are both opened, so that the air flows from the third air inlet 83 and the fourth air inlet 84 enter the first air inlet 21 and the second air inlet 22 through two sides of the duct housing 20, under the action of the first fan blade part 11 and the second fan blade part 13, air is supplied from the volute molded line upper outlet and is discharged, and after heat exchange is carried out when the air passes through the heat exchanger assembly 90, air flow is converged to the upper air outlet for air outlet.
The upper air inlet and the lower air outlet are in a heating mode, the volute motor 100 in the air duct drives the movable volute 30 to move to a second communication state, so that the lower part forms a finished volute profile, at the moment, the third air inlet portion 83 and the fourth air inlet portion 84 of the indoor unit shell 80 are both in a closed state, the first fan blade portion 11 and the second fan blade portion 13 are both opened, air can be sucked from the upper air inlet and then enters, after heat exchange is carried out through the heat exchanger assembly 90, airflow enters the first fan blade portion 11 and the second fan blade portion 13 from channels on two sides of the air duct, air is supplied from the lower outlet of the volute profile and then exits, and air is supplied and heated to the second air inlet 82 of the indoor unit shell 80.
From the above description, it can be seen that the above-described embodiments of the present invention achieve the following technical effects: the whole weight of the air duct component can be reduced, and the cost is reduced.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.
The relative arrangement of the components and steps, the numerical expressions, and numerical values set forth in these embodiments do not limit the scope of the present application unless specifically stated otherwise. Meanwhile, it should be understood that the sizes of the respective portions shown in the drawings are not drawn in an actual proportional relationship for the convenience of description. Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate. In all examples shown and discussed herein, any particular value should be construed as merely illustrative, and not limiting. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, further discussion thereof is not required in subsequent figures.
In the description of the present application, it is to be understood that the orientation or positional relationship indicated by the directional terms such as "front, rear, upper, lower, left, right", "lateral, vertical, horizontal" and "top, bottom", etc., are generally based on the orientation or positional relationship shown in the drawings, and are used for convenience of description and simplicity of description only, and in the case of not making a reverse description, these directional terms do not indicate and imply that the device or element being referred to must have a particular orientation or be constructed and operated in a particular orientation, and therefore, should not be considered as limiting the scope of the present application; the terms "inner and outer" refer to the inner and outer relative to the profile of the respective component itself.
Spatially relative terms, such as "above … …," "above … …," "above … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial relationship to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if a device in the figures is turned over, devices described as "above" or "on" other devices or configurations would then be oriented "below" or "under" the other devices or configurations. Thus, the exemplary term "above … …" can include both an orientation of "above … …" and "below … …". The device may be otherwise variously oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.
It should be noted that the terms "first", "second", and the like are used to define the components, and are only used for convenience of distinguishing the corresponding components, and the terms have no special meanings unless otherwise stated, and therefore, the scope of protection of the present application is not to be construed as being limited.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (13)

1. An air duct device, comprising:
the fan blade structure (10) comprises a first fan blade part (11), a baffle plate (12) and a second fan blade part (13), wherein the baffle plate (12) is arranged between the first fan blade part (11) and the second fan blade part (13);
the air duct shell (20), a first air inlet portion (21), a second air inlet portion (22), a first air outlet portion (23) and a second air outlet portion (24) are arranged on the air duct shell (20), the first air inlet portion (21) and the second air inlet portion (22) are arranged oppositely, the first air outlet portion (23) and the second air outlet portion (24) are arranged at intervals, the first air outlet portion (23) and the second air outlet portion (24) are both communicated with the first air inlet portion (21), and the first air outlet portion (23) and the second air outlet portion (24) are both communicated with the second air inlet portion (22); the fan blade structure (10) is arranged in the air duct shell (20), and a first air inlet of the first fan blade part (11) is opposite to the first air inlet part (21) so as to supply air through the first air inlet part (21); a second air inlet of the second fan blade part (13) is arranged opposite to the second air inlet part (22) so as to supply air through the second air inlet part (22);
the movable volute (30) is movably arranged in the air duct shell (20), a communication port is formed in the movable volute (30), and the movable volute (30) is provided with a first communication position and a second communication position; when the movable volute (30) is at the first communication position, the communication port is communicated with the first air outlet part (23); when the movable volute (30) is at the second communication position, the communication port is communicated with the second air outlet portion (24).
2. The air duct apparatus according to claim 1, further comprising:
a support assembly (40) disposed on the air duct housing (20);
the driving motor (50) is arranged on the supporting component (40), and the driving motor (50) is connected with the fan blade structure (10) so as to drive the fan blade structure (10) to rotate through the driving motor (50).
3. Air duct device according to claim 2, characterized in that the support assembly (40) comprises:
a first support frame (41) arranged at the first air inlet part (21), one end of the driving motor (50) being arranged on the first support frame (41);
and the second support frame (42) is arranged at the second air inlet part (22), and the other end of the driving motor (50) is arranged on the second support frame (42).
4. An air duct device according to claim 3, wherein the first support frame (41) comprises a first support arm (411) and a second support arm (412), the middle of the first support arm (411) and the middle of the second support arm (412) are connected, and the end of the first support arm (411) and the end of the second support arm (412) are both arranged on the air duct housing (20).
5. The air duct device according to claim 1, wherein the movable volute (30) is of an arc-shaped structure, and an arc-shaped groove adapted to the arc-shaped structure is formed on the air duct housing (20), so that the air duct housing (20) is rotatably disposed in the arc-shaped groove.
6. The air duct device according to claim 5, wherein the arc-shaped grooves include a first arc-shaped groove and a second arc-shaped groove, the first arc-shaped groove and the second arc-shaped groove are oppositely arranged at two sides of the air duct shell (20), one end of the movable volute (30) is rotatably arranged in the first arc-shaped groove, and the other end of the movable volute (30) is rotatably arranged in the second arc-shaped groove.
7. The air duct device according to claim 5, further comprising a guide ring (60), wherein the guide ring (60) is sleeved on an end portion of the movable volute (30) so that the guide ring (60) is rotatably disposed in the arc-shaped groove through the movable volute (30).
8. Air duct device according to claim 1, characterized in that it further comprises a deflector ring (70);
the first air inlet part (21) is provided with the guide ring (70); and/or the presence of a gas in the gas,
the second air inlet part (22) is provided with the guide ring (70).
9. An air conditioning indoor unit, characterized in that, the air conditioning indoor unit includes:
an indoor unit casing (80);
an air duct device provided in the indoor unit casing (80), the air duct device being as claimed in any one of claims 1 to 8.
10. Indoor unit of air conditioner according to claim 9, characterized in that the indoor unit casing (80) is provided with a first air opening (81) and a second air opening (82), the air duct device is located between the first air opening (81) and the second air opening (82), the first air opening (81) is used for communicating with the first air outlet portion (23) of the air duct device, and the second air opening (82) is used for communicating with the second air outlet portion (24) of the air duct device.
11. An indoor unit of an air conditioner according to claim 10, further comprising:
and the heat exchanger assembly (90) is arranged on one side of the air duct device close to the first air opening (81) so as to exchange heat for air flow through the heat exchanger assembly (90).
12. An indoor unit of an air conditioner according to claim 9, wherein a third air intake portion (83) is further provided in the indoor unit casing (80), and the third air intake portion (83) is disposed opposite to the first air intake portion (21) of the air duct device so that the air flow from the third air intake portion (83) flows into the first air intake portion (21) of the air duct device.
13. An indoor unit of an air conditioner according to claim 9, wherein a fourth air inlet portion (84) is provided on the indoor unit casing (80), and the fourth air inlet portion (84) is disposed opposite to the second air inlet portion (22) of the air duct device so that the air flow from the fourth air inlet portion (84) into the second air inlet portion (22) of the air duct device.
CN201911419443.3A 2019-12-31 2019-12-31 Air duct device and air conditioner indoor unit with same Pending CN111120372A (en)

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CN201911419443.3A CN111120372A (en) 2019-12-31 2019-12-31 Air duct device and air conditioner indoor unit with same

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CN201911419443.3A CN111120372A (en) 2019-12-31 2019-12-31 Air duct device and air conditioner indoor unit with same

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CN111120372A true CN111120372A (en) 2020-05-08

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112555989A (en) * 2020-12-29 2021-03-26 珠海格力电器股份有限公司 Fan structure and air conditioner with same

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Publication number Priority date Publication date Assignee Title
JPH10238805A (en) * 1997-02-27 1998-09-08 Mitsubishi Electric Corp Indoor machine for air conditioner
CN203810661U (en) * 2014-03-17 2014-09-03 广东美的制冷设备有限公司 Air channel part, air channel system and vertical air conditioner indoor unit
CN104390333A (en) * 2014-10-29 2015-03-04 珠海格力电器股份有限公司 Volute component and air conditioner
CN208475464U (en) * 2018-06-26 2019-02-05 珠海格力电器股份有限公司 Exhaust air flue structure and air conditioner
CN111089083A (en) * 2019-11-27 2020-05-01 珠海格力电器股份有限公司 Fan and air conditioner with same

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH10238805A (en) * 1997-02-27 1998-09-08 Mitsubishi Electric Corp Indoor machine for air conditioner
CN203810661U (en) * 2014-03-17 2014-09-03 广东美的制冷设备有限公司 Air channel part, air channel system and vertical air conditioner indoor unit
CN104390333A (en) * 2014-10-29 2015-03-04 珠海格力电器股份有限公司 Volute component and air conditioner
CN208475464U (en) * 2018-06-26 2019-02-05 珠海格力电器股份有限公司 Exhaust air flue structure and air conditioner
CN111089083A (en) * 2019-11-27 2020-05-01 珠海格力电器股份有限公司 Fan and air conditioner with same

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112555989A (en) * 2020-12-29 2021-03-26 珠海格力电器股份有限公司 Fan structure and air conditioner with same
CN112555989B (en) * 2020-12-29 2022-02-25 珠海格力电器股份有限公司 Fan structure and air conditioner with same

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Application publication date: 20200508