CN111089083A - Fan and air conditioner with same - Google Patents

Fan and air conditioner with same Download PDF

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Publication number
CN111089083A
CN111089083A CN201911185464.3A CN201911185464A CN111089083A CN 111089083 A CN111089083 A CN 111089083A CN 201911185464 A CN201911185464 A CN 201911185464A CN 111089083 A CN111089083 A CN 111089083A
Authority
CN
China
Prior art keywords
air
fan
switching mechanism
cavity
duct
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
CN201911185464.3A
Other languages
Chinese (zh)
Inventor
董明珠
吴晓岳
陈诚
何振健
王千千
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 CN201911185464.3A priority Critical patent/CN111089083A/en
Publication of CN111089083A publication Critical patent/CN111089083A/en
Pending legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/40—Casings; Connections of working fluid
    • F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
    • F04D29/4206—Casings; Connections of working fluid for radial or helico-centrifugal pumps especially adapted for elastic fluid pumps
    • F04D29/4226—Fan casings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/40—Casings; Connections of working fluid
    • F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
    • F04D29/44—Fluid-guiding means, e.g. diffusers
    • F04D29/441—Fluid-guiding means, e.g. diffusers especially adapted for elastic fluid pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
    • F24F1/0007—Indoor units, e.g. fan coil units
    • F24F1/0011—Indoor units, e.g. fan coil units characterised by air outlets
    • F24F1/0014—Indoor units, e.g. fan coil units characterised by air outlets having two or more outlet openings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
    • F24F1/0007—Indoor units, e.g. fan coil units
    • F24F1/0018—Indoor units, e.g. fan coil units characterised by fans
    • F24F1/0022—Centrifugal or radial fans
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
    • F24F1/0007—Indoor units, e.g. fan coil units
    • F24F1/0043—Indoor units, e.g. fan coil units characterised by mounting arrangements
    • F24F1/005—Indoor units, e.g. fan coil units characterised by mounting arrangements mounted on the floor; standing on the floor
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
    • F24F1/0007—Indoor units, e.g. fan coil units
    • F24F1/0059—Indoor units, e.g. fan coil units characterised by heat exchangers
    • F24F1/0063—Indoor units, e.g. fan coil units characterised by heat exchangers by the mounting or arrangement of the heat exchangers

Abstract

The invention provides a fan and an air conditioner with the fan, wherein the fan comprises a shell, centrifugal fan blades and a switching mechanism, an upper air duct and a lower air duct in the shell are both communicated with an induced draft cavity, and the induced draft cavity is provided with an induced draft port positioned on the side wall of the shell; the centrifugal fan blade is rotatably arranged in the air inducing cavity so as to induce air into the air inducing cavity from the air inducing opening; the switching mechanism is arranged on the shell; under the condition that the switching mechanism is in the first working condition, the air guide cavity is communicated with the upper air duct, and the switching mechanism separates the air guide cavity from the lower air duct so as to blow out the air in the air guide cavity from the upper air duct; and under the condition that the switching mechanism is in the second working condition, the air guide cavity is communicated with the lower air duct, and the switching mechanism separates the air guide cavity from the upper air duct so as to blow out the air in the air guide cavity from the lower air duct. By adopting the scheme, the air outlet direction of the fan can be switched, and the adaptability of the fan is improved. The fan is applied to an air conditioner capable of switching air outlet from top to bottom, so that the air duct structure can be simplified, the cost is reduced, and a heat exchange effect is provided.

Description

Fan and air conditioner with same
Technical Field
The invention relates to the technical field of air conditioners, in particular to a fan and an air conditioner with the fan.
Background
The common cabinet air conditioner with upper and lower air outlet distributed air supply is popular with the excellent comfort. Because the air-out direction of single fan is fixed, in order to realize the switching of air-out direction, distributed air supply air conditioner uses structures such as double fan wind channel, three fan wind channels as the main to correspond different air-out directions, the different fans of operation. By adopting the scheme, the required space of the air duct structure is larger, the whole weight of the air duct structure is also larger, and the cost is higher.
Disclosure of Invention
The invention provides a fan and an air conditioner with the same, and aims to solve the problem that the air outlet direction of the fan in the prior art is not changeable.
In order to solve the above-mentioned problems, according to an aspect of the present invention, there is provided a fan comprising: the air conditioner comprises a shell, wherein an upper air duct, an air inducing cavity and a lower air duct are sequentially arranged in the shell from top to bottom, the upper air duct and the lower air duct are communicated with the air inducing cavity, and the air inducing cavity is provided with an air inducing port positioned on the side wall of the shell; the centrifugal fan blade is rotatably arranged in the air inducing cavity so as to induce air into the air inducing cavity from the air inducing opening; the switching mechanism is arranged on the shell, at least a part of structures of the switching mechanism are movably arranged, and the switching mechanism has a first working condition and a second working condition; under the condition that the switching mechanism is in the first working condition, the air guide cavity is communicated with the upper air duct, and the switching mechanism separates the air guide cavity from the lower air duct so as to blow out the air in the air guide cavity from the upper air duct; and under the condition that the switching mechanism is in the second working condition, the air guide cavity is communicated with the lower air duct, and the switching mechanism separates the air guide cavity from the upper air duct so as to blow out the air in the air guide cavity from the lower air duct.
Further, the switching mechanism includes: the cylindrical volute is rotatably arranged in the air induction cavity, an opening corresponding to the air induction port is formed in the end part of the volute, an avoidance port is formed in the side wall of the volute, and the centrifugal fan blade is rotatably arranged in the volute; under the condition that the switching mechanism is in the first working condition, the volute rotates to the position where the avoidance port corresponds to the upper air duct, and the entity part of the volute separates the air guide cavity from the lower air duct; and under the condition that the switching mechanism is in the second working condition, the volute rotates to the position where the avoidance port corresponds to the lower air duct, and the entity part of the volute separates the air guide cavity from the upper air duct.
Furthermore, the air inducing cavity is provided with a first side wall and a second side wall which are opposite, the air inducing opening is positioned between the first side wall and the second side wall, a first transition edge is arranged at the position where the first side wall is connected with the inner wall of the upper air duct, and a second transition edge is arranged at the position where the second side wall is connected with the inner wall of the lower air duct; the avoidance port is provided with a first edge and a second edge which are opposite; under the condition that the switching mechanism is in the first working condition, the first edge is aligned with the first transition edge, and the second edge is abutted against the second side wall; under the condition that the switching mechanism is in the second working condition, the first edge is aligned with the second transition edge, and the second edge is abutted to the first side wall.
Further, the switching mechanism further includes: the gear ring is connected with the volute and can be arranged in a rotating mode so as to drive the volute to rotate; and the gear is meshed with the gear ring to drive the gear ring to rotate.
Further, the fan still includes: and the annular piece is sleeved on the outer wall of the volute, and the outer wall of the annular piece is abutted to the inner wall of the air inducing cavity.
Furthermore, the number of the air inducing ports is two, the two air inducing ports are arranged oppositely, the outlet of the upper air duct is arranged towards the vertical direction, and the outlet of the lower air duct is arranged towards the horizontal direction.
According to another aspect of the present invention, there is provided an air conditioner comprising a housing and a fan disposed in the housing, the fan being the above-provided fan.
Further, the casing is provided with an upper air inlet positioned at the upper part of the casing and a lower air inlet positioned at the lower part of the casing, the air conditioner is provided with an upper air outlet mode and a lower air outlet mode, wherein when the air conditioner is in the upper air outlet mode, the lower air inlet enters air, the fan sucks air entering the casing from the lower air inlet and outputs the sucked air from an upper air duct of the fan so as to be discharged from the upper air inlet; and when the air conditioner is in the lower air outlet mode, the upper air inlet enters air, and the fan sucks air entering the shell from the upper air inlet and outputs the sucked air from a lower air duct of the fan so as to be discharged from the lower air outlet.
Furthermore, the induced air port of the fan and the inner wall of the shell are arranged at intervals, an auxiliary air port is arranged on the side wall of the shell, and the auxiliary air port and the induced air port of the fan are correspondingly arranged to supply air to the fan.
Further, the auxiliary air inlet is openably and closably provided, and the air conditioner further includes: the heat exchanger is arranged in the shell and is positioned above the fan; under the condition that the air conditioner is in the upper air outlet mode, the auxiliary air opening is opened; and under the condition that the air conditioner is in the lower air outlet mode, the auxiliary air opening is closed.
The technical scheme of the invention is applied, and the fan comprises a shell, centrifugal fan blades and a switching mechanism, wherein an upper air duct, an air induction cavity and a lower air duct are sequentially arranged in the shell from top to bottom; the centrifugal fan blade is rotatably arranged in the air inducing cavity so as to induce air into the air inducing cavity from the air inducing opening; the switching mechanism is arranged on the shell and has a first working condition and a second working condition; under the condition that the switching mechanism is in the first working condition, the air guide cavity is communicated with the upper air duct, and the switching mechanism separates the air guide cavity from the lower air duct so as to blow out the air in the air guide cavity from the upper air duct; and under the condition that the switching mechanism is in the second working condition, the air guide cavity is communicated with the lower air duct, and the switching mechanism separates the air guide cavity from the upper air duct so as to blow out the air in the air guide cavity from the lower air duct. By adopting the scheme, the working condition of the switching mechanism can be adjusted, so that the fan can be used for discharging air from the upper part or discharging air from the lower part, and the adaptability of the fan is improved.
The fan is applied to the air conditioner capable of switching air outlet up and down, so that the air duct structure of the air conditioner can be simplified, and the cost is reduced. According to the technical scheme, the area of an air inlet can be increased, the air quantity of the whole machine is improved, meanwhile, the air suction and exhaust characteristics of the centrifugal fan are utilized, the rotary volute structure is designed, the air outlet modes of air channels with different upper and lower convection are realized through the transformation of an internal mechanism, so that the upper and lower circulation convection is realized in a cooling and heating mode, air is discharged from the upper air outlet/returned from the lower air outlet during cooling, air is returned from the lower air outlet/the upper air outlet during heating, the vertical circulation heat exchange can be carried out according to the distribution of indoor temperature fields, and the heat exchange efficiency is improved.
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 a schematic structural diagram of a wind turbine provided by an embodiment of the present invention;
FIG. 2 shows an exploded view of the blower of FIG. 1;
FIG. 3 shows a schematic diagram of the volute of FIG. 2;
FIG. 4 shows a schematic view of the blower of FIG. 1 during top wind;
FIG. 5 shows a schematic view of the blower of FIG. 1 during a lower draft;
fig. 6 illustrates a schematic diagram of an air conditioner provided by an embodiment of the present invention;
FIG. 7 is a schematic diagram illustrating the air conditioner of FIG. 6 in an up-wind mode;
fig. 8 is a schematic diagram illustrating the air conditioner in fig. 6 in a lower wind outlet mode.
Wherein the figures include the following reference numerals:
10. a housing; 11. an upper air duct; 12. a wind-guiding cavity; 13. a lower air duct; 14. an air inducing port; 15. a first side wall; 16. a second side wall; 20. a centrifugal fan blade; 30. a switching mechanism; 31. a volute; 32. a first edge; 33. a second edge; 34. a ring gear; 35. a gear; 36. an annular groove; 37. a motor; 41. an annular member; 42. a flow guide ring; 50. a housing; 51. an air inlet; 52. a lower tuyere; 53. an auxiliary tuyere; 60. a heat exchanger.
Detailed Description
The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. It is to be understood that the described embodiments are merely exemplary of the invention, and not restrictive of the full scope of the invention. The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
As shown in the accompanying drawings, embodiments of the present invention provide a fan comprising: the air conditioner comprises a shell 10, wherein an upper air duct 11, an air inducing cavity 12 and a lower air duct 13 are sequentially arranged in the shell 10 from top to bottom, the upper air duct 11 and the lower air duct 13 are both communicated with the air inducing cavity 12, and the air inducing cavity 12 is provided with an air inducing port 14 positioned on the side wall of the shell 10; the centrifugal fan blade 20 is rotatably arranged in the air inducing cavity 12 to induce air from the air inducing port 14 to the air inducing cavity 12; the switching mechanism 30 is arranged on the housing 10, at least a part of the structure of the switching mechanism 30 is movably arranged, and the switching mechanism 30 has a first working condition and a second working condition; under the condition that the switching mechanism 30 is in the first working condition, the air induction cavity 12 is communicated with the upper air duct 11, and the switching mechanism 30 separates the air induction cavity 12 from the lower air duct 13 so that the air in the air induction cavity 12 is blown out of the upper air duct 11; when the switching mechanism 30 is in the second operating condition, the air induction chamber 12 is communicated with the lower air duct 13, and the switching mechanism 30 separates the air induction chamber 12 from the upper air duct 11, so that the air in the air induction chamber 12 is blown out from the lower air duct 13.
The technical scheme of the invention is applied, and the fan comprises a shell 10, a centrifugal fan blade 20 and a switching mechanism 30, wherein an upper air duct 11, an induced air cavity 12 and a lower air duct 13 which are sequentially arranged from top to bottom are arranged in the shell 10, the upper air duct 11 and the lower air duct 13 are both communicated with the induced air cavity 12, and the induced air cavity 12 is provided with an induced air opening 14 positioned on the side wall of the shell 10; the centrifugal fan blade 20 is rotatably arranged in the induced air cavity 12 to induce air from the induced air port 14 to the induced air cavity 12; the switching mechanism 30 is arranged on the housing 10, and the switching mechanism 30 has a first working condition and a second working condition; under the condition that the switching mechanism 30 is in the first working condition, the air induction cavity 12 is communicated with the upper air duct 11, and the switching mechanism 30 separates the air induction cavity 12 from the lower air duct 13 so that the air in the air induction cavity 12 is blown out of the upper air duct 11; when the switching mechanism 30 is in the second operating condition, the air induction chamber 12 is communicated with the lower air duct 13, and the switching mechanism 30 separates the air induction chamber 12 from the upper air duct 11, so that the air in the air induction chamber 12 is blown out from the lower air duct 13. By adopting the scheme, the working condition of the switching mechanism 30 can be adjusted, so that the fan can be used for discharging air from the upper part or discharging air from the lower part, and the adaptability of the fan is improved. The fan is applied to the air conditioner capable of switching air outlet up and down, so that the air duct structure of the air conditioner can be simplified, and the cost is reduced.
In the present embodiment, the switching mechanism 30 includes: the cylindrical volute 31 is rotatably arranged in the air induction cavity 12, an opening corresponding to the air induction port 14 is formed in the end part of the volute 31, an avoidance port is formed in the side wall of the volute 31, and the centrifugal fan blade 20 is rotatably arranged in the volute 31; under the condition that the switching mechanism 30 is in the first working condition, the volute 31 rotates to a position where the avoidance opening corresponds to the upper air duct 11, and the entity part of the volute 31 separates the air inducing cavity 12 from the lower air duct 13; under the condition that the switching mechanism 30 is in the second operating condition, the volute casing 31 rotates to a position where the avoidance opening corresponds to the lower air duct 13, and the entity part of the volute casing 31 separates the air inducing chamber 12 from the upper air duct 11. With the above arrangement, when the volute 31 rotates to a proper position, one of the upper duct 11 and the lower duct 13 is communicated with the induced air cavity 12, and the other of the upper duct 11 and the lower duct 13 is disconnected from the induced air cavity 12, so that the air outlet direction of the fan can be switched.
In the present embodiment, the induced air cavity 12 has a first side wall 15 and a second side wall 16 opposite to each other, the induced air opening 14 is located between the first side wall 15 and the second side wall 16, a first transition edge is located at a position where the first side wall 15 is connected with the inner wall of the upper air duct 11, and a second transition edge is located at a position where the second side wall 16 is connected with the inner wall of the lower air duct 13; the avoidance orifice has opposite first and second edges 32, 33; when the switching mechanism 30 is in the first operating condition, the first edge 32 is aligned with the first transition edge, and the second edge 33 abuts against the second sidewall 16; when the switching mechanism 30 is in the second operating condition, the first edge 32 is aligned with the second transition edge, and the second edge 33 abuts against the first sidewall 15. Through the above arrangement, the switching mechanism 30 is under the first working condition, so that the separation effect of the lower air duct 13 and the induced air cavity 12 by the volute 31 can be ensured, leakage is avoided, and the first edge 32 is aligned with the first transition edge, so that the air duct is in smooth transition, the resistance of air is reduced, and the air flow is convenient. Accordingly, under the condition that the switching mechanism 30 is in the second working condition, the separation effect of the volute 31 on the upper air duct 11 and the induced air cavity 12 can be ensured, leakage is avoided, and the first edge 32 is aligned with the second transition edge, so that the air duct is in smooth transition, the resistance of wind is reduced, and the air flow is facilitated.
Optionally, spiral case 31 includes the arc and sets up the guide board in the one end of arc, and the opening between guide board and the arc is for dodging the mouth, and the guide board is the arc structure, has the contained angle between guide board and the arc. Through the structure, the wind can be guided conveniently, and the wind resistance is reduced.
In the present embodiment, the switching mechanism 30 further includes: the gear ring 34 is connected with the volute casing 31, and the gear ring 34 can be arranged in a rotating mode so as to drive the volute casing 31 to rotate; and a gear 35 engaged with the ring gear 34 to drive the ring gear 34 to rotate. This enables rotation of the volute 31 by cooperation of the gear 35 and the ring gear 34. By adopting the arrangement, the transmission is reliable, the control is accurate, and the blocking to the space where the wind flows can not be caused. Optionally, the switching mechanism 30 further includes a motor 37, the motor 37 is fixedly disposed on the housing 10, and the motor 37 drives the gear 35 to rotate.
In this embodiment, the fan further includes: and the annular part 41 is sleeved on the outer wall of the volute casing 31, and the outer wall of the annular part 41 is abutted to the inner wall of the induced draft cavity 12. This can support the volute casing 31 by the ring 41, and can reduce the friction between the volute casing 31 and the inner wall of the draft chamber 12. The ring 41 is made of plastic and can act like a bearing. The number of rings 41 is two to further enhance the supporting and guiding effect. Furthermore, the ring 41 also serves as a seal to prevent leakage when the volute 31 is used to separate the upper duct 11 or the lower duct 13, thereby improving the sealing effect.
Optionally, the volute casing 31 has an annular groove 36 thereon, and the annular member 41 is engaged with the annular groove 36 to facilitate assembly and positioning. The fan further comprises two guide rings 42, and the two guide rings 42 are respectively connected with two sides of the volute 31 to play a role in guiding air. The number of the centrifugal fan blades 20 is two, and the two centrifugal fan blades 20 are arranged in an array mode to improve air volume.
In this embodiment, there are two air inducing ports 14, the two air inducing ports 14 are disposed oppositely, the outlet of the upper air duct 11 is disposed toward the vertical direction, and the outlet of the lower air duct 13 is disposed toward the horizontal direction. By providing two induced draft ports 14, the air volume can be increased. Through the setting of wind channel direction, can be with the fan towards the air-out of top or towards the horizontal direction air-out of lower part.
Another embodiment of the present invention provides an air conditioner, which includes a housing 50 and a blower disposed in the housing 50, wherein the blower is the blower provided above. Through this air conditioner, can realize the switching of air-out direction to satisfy different user demands. Moreover, the wind direction can be changed through one fan without arranging a plurality of fans, so that the air duct structure can be simplified, the ventilation space and the ventilation volume are increased, and the heat exchange effect is improved.
In the present embodiment, the casing 50 has an upper air inlet 51 at an upper portion thereof and a lower air inlet 52 at a lower portion thereof, and the air conditioner has an upper air outlet mode and a lower air outlet mode, wherein when the air conditioner is in the upper air outlet mode, the lower air inlet 52 supplies air, and the blower sucks air entering the casing 50 from the lower air inlet 52 and outputs the sucked air from the upper air duct 11 of the blower to be discharged from the upper air inlet 51; in the case where the air conditioner is in the lower outlet mode, the upper outlet 51 is supplied with air, and the blower sucks air entering the casing 50 from the upper outlet 51 and outputs the sucked air from the lower duct 13 of the blower to be discharged from the lower outlet 52. The air outlet mode can be adjusted according to needs through the arrangement, and the comfort of a user is improved. For example, an upper air outlet mode is adopted during cooling, and a lower air outlet mode is adopted during heating. In this embodiment, when the air conditioner is in the upper air outlet mode, the switching mechanism 30 of the blower is in the first operating condition, and when the air conditioner is in the lower air outlet mode, the switching mechanism 30 of the blower is in the second operating condition.
In this embodiment, the induced air port 14 of the fan and the inner wall of the casing 50 are arranged at an interval, the side wall of the casing 50 is provided with an auxiliary air port 53, and the auxiliary air port 53 is arranged corresponding to the induced air port 14 of the fan to supply air to the fan. Through setting up supplementary wind gap 53, accessible supplementary wind gap 53 is to the fan air supply like this to improve air volume and heat transfer effect.
Specifically, the auxiliary air port 53 is openably and closably provided, and the air conditioner further includes: the heat exchanger 60, the heat exchanger 60 is arranged in the shell 50, and the heat exchanger 60 is positioned above the fan; when the air conditioner is in the upper air outlet mode, the auxiliary air opening 53 is opened; when the air conditioner is in the lower air-out mode, the auxiliary air opening 53 is closed. When the air conditioner is used, the heat exchange effect can be achieved only by exchanging heat through the heat exchanger 60, so that the auxiliary air opening 53 is not opened when the air conditioner is in a lower air outlet mode, air needs to be fed from the upper air opening 51, and the air enters the fan and is blown out after exchanging heat with the heat exchanger 60.
Optionally, the heat exchanger 60 is of a V-shaped structure, so that the heat exchange area can be increased, and the heat exchange effect can be improved.
In this embodiment, the air conditioner is in a lower air inlet and upper air outlet refrigeration mode, the gear is driven by the driving motor inside the fan, so that the rotary volute avoiding port is rotated to the upper end to correspond to the upper air duct, the volute, the induced air cavity and the upper air duct form a complete volute molded line, the auxiliary air ports on the left side and the right side of the lower end are opened, air can be fed from the lower air port and the auxiliary air ports on the two sides, indoor air enters the fan, air is fed from the volute molded line upper outlet under the action of the fan, and after heat exchange is performed through the heat exchanger, air flow is converged to the upper air outlet for air outlet.
When the air conditioner is in an upper air inlet and lower air outlet heating mode, a motor inside the fan drives the spiral case to rotate to a dodge port to the lower end, the dodge port corresponds to the lower air duct, so that the spiral case, the air induction cavity and the lower air duct form a complete spiral case molded line, the auxiliary air ports on two sides are closed at the moment, when the fan is opened, air can be sucked from the upper air port to be sucked, then the air enters the centrifugal fan blades after heat exchange through the heat exchanger, air is blown out from the lower outlet of the spiral case molded line, and air is blown to the lower air port of the whole machine to heat.
According to the technical scheme, the area of an air inlet can be increased, the air quantity of the whole machine is improved, meanwhile, the air suction and exhaust characteristics of the centrifugal fan are utilized, the rotary volute structure is designed, the air outlet modes of air channels with different upper and lower convection are realized through the transformation of an internal mechanism, so that the upper and lower circulation convection is realized in a cooling and heating mode, air is discharged from the upper air outlet/returned from the lower air outlet during cooling, air is returned from the lower air outlet/the upper air outlet during heating, the vertical circulation heat exchange can be carried out according to the distribution of indoor temperature fields, and the heat exchange efficiency is improved.
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 (10)

1. A fan, comprising:
the air conditioner comprises a shell (10), wherein an upper air duct (11), an air inducing cavity (12) and a lower air duct (13) are sequentially arranged in the shell (10) from top to bottom, the upper air duct (11) and the lower air duct (13) are communicated with the air inducing cavity (12), and the air inducing cavity (12) is provided with an air inducing port (14) located on the side wall of the shell (10);
the centrifugal fan blade (20) is rotatably arranged in the air inducing cavity (12) to induce air from the air inducing opening (14) to the air inducing cavity (12);
the switching mechanism (30) is arranged on the shell (10), at least one part of the structure of the switching mechanism (30) is movably arranged, and the switching mechanism (30) has a first working condition and a second working condition;
under the condition that the switching mechanism (30) is in the first working condition, the air guide cavity (12) is communicated with the upper air duct (11), and the switching mechanism (30) separates the air guide cavity (12) from the lower air duct (13) so that air in the air guide cavity (12) is blown out of the upper air duct (11);
under the condition that the switching mechanism (30) is in the second working condition, the air guide cavity (12) is communicated with the lower air duct (13), and the switching mechanism (30) separates the air guide cavity (12) from the upper air duct (11) so that air in the air guide cavity (12) is blown out from the lower air duct (13).
2. The fan according to claim 1, wherein the switching mechanism (30) comprises:
the cylindrical volute (31) is rotatably arranged in the air induction cavity (12), an opening which corresponds to the air induction port (14) is formed in the end part of the volute (31), an avoidance port is formed in the side wall of the volute (31), and the centrifugal fan blade (20) is rotatably arranged in the volute (31);
under the condition that the switching mechanism (30) is in the first working condition, the volute (31) rotates to the position where the avoidance opening corresponds to the upper air duct (11), and the entity part of the volute (31) separates the air guide cavity (12) from the lower air duct (13);
under the condition that switching mechanism (30) is in the second operating mode, spiral case (31) rotate to dodge the mouth with the position that wind channel (13) correspond down, the entity part of spiral case (31) will induced air chamber (12) with go up wind channel (11) and separate.
3. The fan of claim 2,
the air inducing cavity (12) is provided with a first side wall (15) and a second side wall (16) which are opposite, the air inducing opening (14) is positioned between the first side wall (15) and the second side wall (16), a first transition edge is arranged at the position where the first side wall (15) is connected with the inner wall of the upper air duct (11), and a second transition edge is arranged at the position where the second side wall (16) is connected with the inner wall of the lower air duct (13);
the avoidance opening has opposite first (32) and second (33) edges;
under the condition that the switching mechanism (30) is in the first working condition, the first edge (32) is aligned with the first transition edge, and the second edge (33) is abutted with the second side wall (16);
under the condition that the switching mechanism (30) is in the second working condition, the first edge (32) is aligned with the second transition edge, and the second edge (33) is abutted to the first side wall (15).
4. The fan of claim 2, wherein the switching mechanism (30) further comprises:
the gear ring (34) is connected with the volute (31), and the gear ring (34) is rotatably arranged to drive the volute (31) to rotate;
and the gear (35) is meshed with the gear ring (34) to drive the gear ring (34) to rotate.
5. The fan of claim 2, further comprising:
the annular piece (41) is sleeved on the outer wall of the volute (31), and the outer wall of the annular piece (41) is abutted to the inner wall of the air inducing cavity (12).
6. The fan according to claim 1, wherein there are two air inducing openings (14), the two air inducing openings (14) are disposed oppositely, the outlet of the upper air duct (11) is disposed towards the vertical direction, and the outlet of the lower air duct (13) is disposed towards the horizontal direction.
7. An air conditioner, characterized in that the air conditioner comprises a housing (50) and a fan disposed in the housing (50), the fan being the fan of any one of claims 1 to 6.
8. The air conditioner according to claim 7, wherein the casing (50) has an upper air outlet (51) at an upper portion thereof and a lower air outlet (52) at a lower portion thereof, the air conditioner having an upper air outlet mode and a lower air outlet mode, wherein,
when the air conditioner is in the upper air outlet mode, the lower air inlet (52) is used for supplying air, and the fan sucks air entering the shell (50) from the lower air inlet (52) and outputs the sucked air from an upper air channel (11) of the fan so as to outlet air from the upper air inlet (51);
and when the air conditioner is in the lower air outlet mode, the upper air inlet (51) is used for introducing air, and the fan sucks the air entering the shell (50) from the upper air inlet (51) and outputs the sucked air from a lower air duct (13) of the fan so as to discharge the air from the lower air inlet (52).
9. The air conditioner according to claim 8, wherein the induced draft opening (14) of the fan is spaced apart from the inner wall of the housing (50), and an auxiliary air opening (53) is provided on the side wall of the housing (50), and the auxiliary air opening (53) is provided corresponding to the induced draft opening (14) of the fan to supply air to the fan.
10. The air conditioner according to claim 9, wherein the auxiliary air opening (53) is openably and closably provided, the air conditioner further comprising:
a heat exchanger (60), the heat exchanger (60) being disposed within the housing (50), and the heat exchanger (60) being located above the fan;
under the condition that the air conditioner is in the upper air outlet mode, the auxiliary air opening (53) is opened;
and under the condition that the air conditioner is in the lower air outlet mode, the auxiliary air opening (53) is closed.
CN201911185464.3A 2019-11-27 2019-11-27 Fan and air conditioner with same Pending CN111089083A (en)

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CN111089337A (en) * 2019-12-31 2020-05-01 珠海格力电器股份有限公司 Indoor unit of air conditioner
CN111120372A (en) * 2019-12-31 2020-05-08 珠海格力电器股份有限公司 Air duct device and air conditioner indoor unit with same

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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
CN110185645A (en) * 2019-07-01 2019-08-30 珠海格力电器股份有限公司 Tower fan

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JPH05157299A (en) * 1991-12-03 1993-06-22 Daikin Ind Ltd Heat exchanging ventilator
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CN111089337A (en) * 2019-12-31 2020-05-01 珠海格力电器股份有限公司 Indoor unit of air conditioner
CN111120372A (en) * 2019-12-31 2020-05-08 珠海格力电器股份有限公司 Air duct device and air conditioner indoor unit with same
CN111089337B (en) * 2019-12-31 2021-11-16 珠海格力电器股份有限公司 Indoor unit of air conditioner

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Application publication date: 20200501