CN107830578B - Ceiling machine - Google Patents
Ceiling machine Download PDFInfo
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- CN107830578B CN107830578B CN201711200186.5A CN201711200186A CN107830578B CN 107830578 B CN107830578 B CN 107830578B CN 201711200186 A CN201711200186 A CN 201711200186A CN 107830578 B CN107830578 B CN 107830578B
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- motor
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- air deflector
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- 230000007423 decrease Effects 0.000 claims description 33
- 230000007704 transition Effects 0.000 claims description 12
- 230000008859 change Effects 0.000 claims description 11
- 230000002441 reversible effect Effects 0.000 claims description 9
- 230000003247 decreasing effect Effects 0.000 claims description 8
- 241000700647 Variola virus Species 0.000 claims description 2
- 230000002829 reductive effect Effects 0.000 description 25
- 238000009792 diffusion process Methods 0.000 description 7
- 238000010438 heat treatment Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 238000001816 cooling Methods 0.000 description 3
- 238000005057 refrigeration Methods 0.000 description 3
- 230000006870 function Effects 0.000 description 2
- 238000004378 air conditioning Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000008094 contradictory effect Effects 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 230000036961 partial effect Effects 0.000 description 1
- 230000035807 sensation Effects 0.000 description 1
Classifications
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- 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
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- 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
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- 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
- F24F1/0047—Indoor units, e.g. fan coil units characterised by mounting arrangements mounted in the ceiling or at the ceiling
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/08—Air-flow control members, e.g. louvres, grilles, flaps or guide plates
- F24F13/10—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Air-Flow Control Members (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention discloses a ceiling machine, which comprises a shell, a wind wheel arranged in the shell, and a panel covered at the lower end of the shell, wherein the wind wheel comprises a fan and a motor connected with the fan, and the panel is provided with a first air port and a second air port positioned at the periphery of the first air port; the ceiling machine further comprises an air deflector rotatably installed in the second air opening and a driving device connected with the air deflector, wherein a controller of the ceiling machine is electrically connected with the motor and the driving device, and the controller controls the driving device to drive the air deflector to rotate to open the opening of the second air opening according to the rotating speed of the motor. The ceiling fan can automatically adjust the opening of the air deflector so as to realize multidirectional uniform air supply.
Description
Technical Field
The invention relates to the technical field of ceiling machines, in particular to a ceiling machine.
Background
Ceiling machines have been born for a long time in the air conditioning industry, and are increasingly favored by users due to the characteristics of elegant appearance, space saving and the like. However, the conventional ceiling fan needs to control the opening of the air deflector by a user through a remote controller, and when the opening of the air deflector is selected, the ceiling fan can only blow air in a specific direction all the time, so that partial areas are easy to blow air continuously, other areas are continuously windless, the air supply is uneven, and the comfort experience of the user is not improved.
Disclosure of Invention
The invention mainly aims to provide a ceiling machine, which aims to enable the opening degree of an air deflector to be automatically adjusted so as to realize multidirectional uniform air supply.
In order to achieve the above purpose, the ceiling machine provided by the invention comprises a shell, a wind wheel arranged in the shell, and a panel covered at the lower end of the shell, wherein the wind wheel comprises a fan and a motor connected with the fan, and the panel is provided with a first air port and a second air port positioned at the periphery of the first air port; the ceiling machine further comprises an air deflector rotatably installed in the second air opening and a driving device connected with the air deflector, wherein a controller of the ceiling machine is electrically connected with the motor and the driving device, and the controller controls the driving device to drive the air deflector to rotate to open the opening of the second air opening according to the rotating speed of the motor.
Preferably, the motor has a forward rotation mode, and when the motor is in the forward rotation mode, the fan drives air flow into from the first air port and blows out from the second air port.
Preferably, the opening degree of the air deflector gradually decreases in a curve transition shape along with the increase of the rotating speed of the motor and gradually increases along with the decrease of the rotating speed of the motor.
Preferably, the opening of the air deflector is gradually reduced along with the increase of the rotating speed of the motor in a fold line transition shape and gradually increased along with the decrease of the rotating speed of the motor.
Preferably, the opening degree of the air deflector is gradually reduced in a step transition shape along with the increase of the rotating speed of the motor and gradually increased along with the decrease of the rotating speed of the motor.
Preferably, the motor has a reverse rotation mode, and when the motor is in the reverse rotation mode, the fan drives air flow into the second air port and blows out of the first air port.
Preferably, the opening degree of the air deflector is gradually increased along with the increase of the rotating speed of the motor, and gradually decreased along with the decrease of the rotating speed of the motor.
Preferably, the maximum rotation speed of the motor is N 1/rpm, the minimum rotation speed of the motor is N 2/rpm, and when the controller controls the motor to switch rotation speed, the actual rotation speed of the motor is N/rpm, N epsilon [ N 1,0.7N2 ].
Preferably, the opening degree of the air deflector is theta, theta is epsilon [30 degrees, 85 degrees ].
Preferably, the air deflector is pivoted with the panel at the lower end of the air outlet duct; the driving device comprises a stepping motor electrically connected with the controller, a driving shaft of the stepping motor is connected with the air deflector, and the controller controls the stepping motor to drive the air deflector to rotate.
According to the technical scheme, the air deflector is rotatably arranged in the second air opening, the driving device connected with the air deflector is arranged in the shell, the controller of the ceiling machine is electrically connected with the motor of the wind wheel and the driving device, and the controller is used for controlling the driving device to drive the air deflector to rotate to open the opening of the second air opening according to the rotating speed of the motor, so that the air deflector guides air flow to different directions, and air supply in all directions is more uniform. For example, when the rotation speed of the motor is reduced, the air quantity of the ceiling fan is reduced, and at the moment, the opening degree of the air deflector is increased, so that the air supply angle is increased, the outward diffusion range of the air supply air flow is wide, the downward air speed of the air supply air flow is reduced, and the air supply air flow is prevented from being intensively blown to a user; when the rotating speed of the motor is increased, the air quantity of the ceiling fan is increased, and at the moment, the opening degree of the air deflector is reduced, so that the air supply angle is reduced, the outward diffusion range of the air supply air flow is narrowed, the air supply distance is long, the downward air speed of the air supply air flow is reduced, and the air supply air flow can be prevented from being intensively blown to a user.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings may be obtained according to the structures shown in these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic view of a ceiling fan according to an embodiment of the present invention;
FIG. 2 is a schematic view of a portion of the ceiling machine of FIG. 1;
FIG. 3 is a cross-sectional view of a portion of the construction of the ceiling fan of FIG. 2;
FIG. 4 is an enlarged view of FIG. 3 at A;
FIG. 5 is a schematic view of four opening states of the air deflection plate of FIG. 3;
FIG. 6 is a schematic diagram of a first variation of the opening of the air deflector of FIG. 3;
FIG. 7 is a schematic diagram of a second variation of the opening of the air deflector of FIG. 3;
FIG. 8 is a schematic diagram of a third variation of the opening of the air deflector of FIG. 3;
fig. 9 is a schematic diagram of the opening of the air deflector in fig. 3 according to the rotation speed of the motor.
Description of the reference numerals
| Reference numerals | Name of the name | Reference numerals | Name of the name |
| 10 | Shell body | 40 | Air deflector |
| 20 | Panel board | 50 | Blower fan |
| 21 | First tuyere | 60 | Motor with a motor housing |
| 22 | Second tuyere | 70 | Stepping motor |
| 30 | Air door |
The achievement of the objects, functional features and advantages of the present invention will be further described with reference to the accompanying drawings, in conjunction with the embodiments.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
It should be noted that, if directional indications (such as up, down, left, right, front, and rear … …) are included in the embodiments of the present invention, the directional indications are merely used to explain the relative positional relationship, movement conditions, etc. between the components in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indications are correspondingly changed.
In addition, if there is a description relating to "outside of the room", "inside of the room", etc. in the embodiments of the present invention, the description of "outside of the room", "inside of the room", etc. is for descriptive purposes only and is not to be construed as indicating or implying relative importance or implying that the number of technical features indicated is indicated. Thus, a feature defining "outdoor side", "indoor side" may include at least one such feature explicitly or implicitly. In addition, the technical solutions of the embodiments may be combined with each other, but it is necessary to base that the technical solutions can be realized by those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should be considered to be absent and not within the scope of protection claimed in the present invention.
The invention provides a ceiling machine which can be a ceiling machine or an embedded air conditioner. The ceiling machine can automatically adjust the opening degree of the air deflector so as to supply air uniformly to all directions.
Referring to fig. 1 to 3, in an embodiment of a ceiling fan according to the present invention, the ceiling fan includes a housing 10, a wind wheel installed in the housing 10, and a panel 20 covered on a lower end of the housing 10, the wind wheel includes a fan 50 and a motor 60 connected to the fan 50, and the panel 20 is provided with a first air port 21 and a second air port 22 located at a periphery of the first air port 21; the ceiling machine further comprises an air deflector 40 rotatably installed in the second air opening 22, and a driving device connected with the air deflector 40, wherein a controller (not shown) of the ceiling machine is electrically connected with the motor 60 and the driving device, and the controller controls the driving device to drive the air deflector 40 to rotate to open the opening of the second air opening 22 according to the rotating speed of the motor 60.
Specifically, the casing 10 may be cylindrical or square, a receiving chamber for mounting a heat exchanger and a wind wheel of the ceiling machine is formed inside the casing 10, the lower end of the casing 10 has an opening opened downward, and the panel 20 covers the opening at the lower end of the casing 10. The first air opening 21 is disposed in the middle of the panel 20, and the first air opening 21 may be circular, elliptical or square. The number of the second air openings 22 is plural, the second air openings 22 are circumferentially around the periphery of the first air opening 21 along the outer circumference of the panel 20, and each second air opening 22 is provided with an air door 30 for rotating to open or close the second air opening 22.
The motor 60 has a forward rotation mode, when the motor 60 is in the forward rotation mode, the fan 50 drives air flow to enter from the first air port 21, and when the air flow passes through the heat exchanger, heat exchange is performed between the air flow and the heat exchanger to form air flow, and the air flow flows to the second air port 22 and is blown out from the second air port 22 under the driving of the wind wheel, so that indoor refrigeration/heating is realized.
Referring to fig. 3 and 4, the controller controls the driving device to drive the air deflector 40 to rotate to open the opening of the second air port 22 according to the rotation speed of the motor 60, so as to correspondingly adjust the flow direction of the air flow passing through the second air port 22. Specifically, when the rotation speed of the motor 60 decreases, the controller correspondingly controls the driving device to drive the air deflector 40 to deflect so as to increase the opening of the air deflector 40, and correspondingly controls the driving device to drive the air deflector 40 to deflect so as to reduce the opening of the air deflector 40 according to the increase of the rotation speed of the motor 60.
The above-mentioned manner of controlling the opening degree of the air deflector 40 by the controller is substantially equivalent to that when the rotation speed of the motor 60 is reduced, the air volume of the ceiling machine is reduced, and at this time, increasing the opening degree of the air deflector 40 can increase the air supply angle, and the outward diffusion range of the air supply air flow is wide, so that the downward air velocity of the air supply air flow is reduced, and the air supply air flow is prevented from being intensively blown to the user; when the rotation speed of the motor 60 increases, the air volume of the ceiling fan increases, and at this time, the opening degree of the air deflector 40 is reduced, so that the air supply angle is reduced, the outward diffusion range of the air supply air flow is narrowed, the air supply distance is long, the downward air speed of the air supply air flow is reduced, and the air supply air flow is prevented from being intensively blown to the user.
Of course, the air conditioner may correspondingly control the driving device to drive the air deflector 40 to deflect to reduce the opening of the air deflector 40 when the rotation speed of the motor 60 is reduced, and correspondingly control the driving device to drive the air deflector 40 to deflect to increase the opening of the air deflector 40 according to the increase of the rotation speed of the motor 60. The manner of adjusting the opening degree of the air deflector 40 is substantially equivalent to that when the rotation speed of the motor 60 is reduced, the air quantity of the ceiling fan is reduced, and at the moment, the opening degree of the air deflector 40 is reduced, so that the air supply angle is reduced, the air flow is gathered, and the air deflector 40 guides the air flow to a far position, so that even if the air quantity of the ceiling fan is smaller, the air supply range is larger; when the rotation speed of the motor 60 increases, the air volume of the ceiling fan increases, and at this time, the opening degree of the air deflector 40 increases, so that the air supply angle increases, the air deflector 40 guides the air flow to a position closer to the air flow, and the air flow of the air supply is rapidly diffused outwards, so that rapid cooling/heating is realized.
In the operation process of the ceiling, the opening degree of the air deflector 40 is adjusted substantially according to the real-time rotation speed of the motor 60, so that the air deflector 40 guides the air flow to different directions, and the air supply in each direction is more uniform. In the above manner, the design can be made according to the needs of the user, which is not limited herein.
According to the technical scheme of the invention, the air deflector 40 is rotatably arranged in the second air opening 22, and the driving device connected with the air deflector 40 is arranged in the shell 10, and the controller of the ceiling machine is electrically connected with the motor 60 of the wind wheel and the driving device, so that the controller is utilized to control the driving device to drive the air deflector 40 to rotate to open the opening of the second air opening 22 according to the rotating speed of the motor 60, so that the air deflector 40 guides air flow in different directions, and air supply in all directions is more uniform. For example, in the four opening states of the air deflector shown in fig. 5, when the rotation speed of the motor 60 decreases, the air volume of the ceiling machine decreases, and at this time, increasing the opening of the air deflector 40 increases the air supply angle, so that the outward diffusion range of the air supply air flow is wide, the downward air velocity of the air supply air flow decreases, and the air supply air flow is prevented from being intensively blown to the user; when the rotation speed of the motor 60 increases, the air volume of the ceiling fan increases, and at this time, the opening degree of the air deflector 40 is reduced, so that the air supply angle is reduced, the outward diffusion range of the air supply air flow is narrowed, the air supply distance is long, the downward air speed of the air supply air flow is reduced, and the air supply air flow is prevented from being intensively blown to the user.
Referring to fig. 2, 3 and 4, in the present embodiment, the air deflector 40 is pivoted to the panel 20; the driving device comprises a stepping motor 70 electrically connected with the controller, a driving shaft of the stepping motor 70 is connected with the air deflector 40, and the controller controls the stepping motor 70 to drive the air deflector 40 to rotate.
Specifically, the air deflector 40 has pivot shafts at both ends, and the panel 20 has pivot holes pivotally connected to the pivot shafts. The stepper motor 70 may drive the air deflector 40 to rotate by driving the crank to rotate, or drive the gear to rotate to drive the air deflector 40 to rotate, which is not particularly limited herein.
In this embodiment, to obtain a wider air supply area, the panel 20 is square, and the first air port 21 is square and is disposed in the middle of the panel 20; the number of the second air openings 22 is four, the four second air openings 22 are respectively arranged at four side parts of the panel 20, and each second air opening 22 is arranged in a strip shape along the length direction of the side part of the panel 20 in an extending mode, so that the four second air openings 22 encircle the periphery of the first air opening 21 in a surrounding mode, the air supply range is enlarged, and larger uniform air supply in the azimuth is achieved.
Referring to fig. 3 and 5, in the present embodiment, the motor 60 has a forward rotation mode, and in this mode, when the rotation speed of the motor 60 decreases, the controller correspondingly controls the driving device to drive the air deflector 40 to deflect so as to increase the opening of the air deflector 40, and correspondingly controls the driving device to drive the air deflector 40 to deflect so as to decrease the opening of the air deflector 40 according to the increase of the rotation speed of the motor 60. That is, the opening degree of the air deflector 40 gradually decreases as the rotation speed of the motor 60 increases, and gradually increases as the rotation speed of the motor 60 decreases. As for the manner of changing the opening degree of the air guide plate 40, there are various manners, and the following three manners are exemplified here:
first, as shown in fig. 6, the opening degree of the air deflector 40 gradually decreases as the rotation speed of the motor 60 increases and gradually increases as the rotation speed of the motor 60 decreases in a curve transition shape. Specifically, if the amount of change in the opening degree of the air guide plate 40 is small at the same amount of change in the motor 60, the opening degree of the air guide plate 40 gradually increases/decreases in a curve 1 shape; if the amount of change in the opening degree of the air guide plate 40 is large, the opening degree of the air guide plate 40 gradually increases/decreases in a curve 2. By the arrangement mode, the change process of the opening of the air deflector 40 is gentle, the airflow direction is switched slowly, the user experiences smaller wind sensation, and the air supply is more uniform.
As shown in fig. 7, the opening degree of the air guide plate 40 gradually decreases as the rotation speed of the motor 60 increases and gradually increases as the rotation speed of the motor 60 decreases in a zigzag transition shape. By the arrangement mode, the change process of the opening degree of the air deflector 40 is faster, and the airflow direction can be switched in time.
Third, as shown in fig. 8, the opening degree of the air deflector 40 gradually decreases with an increase in the rotation speed of the motor 60 and gradually increases with a decrease in the rotation speed of the motor 60 in a stepwise transition. By the arrangement mode, the air deflector 40 can be prevented from being frequently rotated, so that the service life of the air deflector 40 is shortened.
Referring to fig. 3, in this embodiment, in order to avoid a large noise generated by too large difference of the rotational speeds of the motor 60 or to reduce the service life of the motor 60, the maximum rotational speed of the motor 60 is N 1/rpm, the minimum rotational speed of the motor 60 is N 2/rpm, and when the controller controls the motor 60 to switch rotational speeds, the actual rotational speed of the motor 60 is N/rpm, N e [ N 1,0.7N2 ].
If the actual rotation speed of the motor 60 is greater than 0.7N 2, a large noise is generated due to the excessive actual rotation speed of the motor 60, so that the strain of the motor 60 is increased, and the service life of the motor 60 is easily impaired. For example, N 1 is 200rpm and N 2 is 1200rpm, N ε [200, 840].
In this embodiment, considering that the opening of the air deflector 40 is not too small during the operation of the ceiling fan, otherwise the supply air flow is not easy to be sent out in time, so as to reduce the cooling/heating effect; the opening degree of the air deflector 40 is not too large, otherwise, the larger the rotating angle of the air deflector 40 is, the larger the bearing capacity of the pivot structure is, and the influence of the air deflector effect is small. Therefore, it is preferable that the opening degree of the air deflector 40 is θ, θ∈ [30 °,85 ° ].
Specifically, although θ varies depending on the rotation speed of the motor 60, the maximum value of θ is not more than 85 ° and the minimum value of θ is not less than 30 °, and it is preferable that θ may gradually vary from 30 ° to 85 °, or may vary from 30 ° to 70 °, or from 40 ° to 85 °.
Referring to fig. 5 and 9, in the present embodiment, a rotational speed variation function N (t) for controlling the rotational speed of the motor 60 over time and an opening variation function θ (t) for controlling the opening of the air deflector 40 to vary over time are preset in the controller, wherein:
N(t)＝(2e-0.5t1 6-0.002t1 5+0.134t1 4-3.395t1 3+34.39t1 2-68.66t1+369.5),N is the rotation speed/rpm of the motor, and t 1 is the running time/min of the motor.
θ(t)＝(2e-0.6t2 6+0.000t2 5-0.015t2 4+0.390t2 3-4.096t2 2+10.44t2+76.62),θ Is the opening degree/°, t 2＝t1 +Δt of the air deflector 40, and Δt is the time difference of rotation of the deflection hysteresis motor 60 of the air deflector 40, and Δt∈ [0min,5min ].
In order to verify the influence of the change of the opening of the air deflector 40 along with the rotation speed of the motor 60 on the wind speed V y in the downward direction of the second wind port 22, the ceiling machine of the present invention was tested in the forward rotation mode of the motor 60, and the data of the ceiling machine of the present invention were measured as shown in the following tables 1-1 and 1-2:
TABLE 1-1
| t1/min | N/rpm | θ/° | Vy/m/s |
| 0 | 300 | 85 | 3.6 |
| 1 | 350 | 80 | 3.8 |
| 2 | 400 | 75 | 3.5 |
| 3 | 450 | 70 | 3.7 |
| 4 | 500 | 65 | 3.9 |
| 5 | 550 | 60 | 3.6 |
| 6 | 600 | 55 | 3.7 |
| 7 | 650 | 50 | 3.8 |
| 8 | 700 | 45 | 3.7 |
| 9 | 750 | 40 | 3.9 |
| 10 | 800 | 35 | 3.8 |
| 11 | 850 | 30 | 4.1 |
| 12 | 900 | 25 | 4.2 |
| 13 | 950 | 20 | 4.3 |
TABLE 1-2
As can be seen from tables 1-1 and 1-2 above, V y is kept at 3.5 m/s-4.3 m/s, the fluctuation range is less than 1m/s, and the air deflector 40 is kept at a relatively balanced level basically in the process that the opening degree is gradually reduced along with the increase of the rotating speed of the motor 60 and is gradually increased along with the decrease of the rotating speed of the motor 60; v y is still less than 5m/s when the motor 60 reaches the higher speed 950 rpm. Obviously, according to the ceiling fan disclosed by the invention, the opening degree of the air plate is gradually reduced along with the increase of the rotating speed of the motor 60 and gradually increased along with the decrease of the rotating speed of the motor 60, so that V y is smaller than 5m/s, V y is smaller, the wind sense is smaller, and discomfort caused by a user is avoided.
In order to compare the effect of the opening of the air deflector 40 on the wind speed V y in the downward direction of the second air port 22, which is not changed with the rotation speed of the motor 60, when the motor 60 is in the forward rotation mode and other working conditions are the same as the above test conditions, the conventional ceiling machine is tested, and the following data of the conventional ceiling machine are measured:
the opening degree of the air deflector 40 is kept unchanged at 85 DEG, and when the motor 60 reaches a higher rotating speed of 950rpm, V y is 5.9 m/s-6.4 m/s; when the motor 60 is lowered to a lower rotation speed of 300rpm, V y is between 2.4 and 2.5m/s;
the opening degree of the air deflector 40 is kept unchanged at 65 degrees, and when the motor 60 reaches a higher rotating speed of 950rpm, V y is between 6.9 and 7.1m/s; when the motor 60 is lowered to a lower rotation speed of 300rpm, V y is between 2.6 and 2.8m/s;
The opening degree of the air deflector 40 is kept unchanged at 45 degrees, and when the motor 60 reaches a higher rotating speed of 950rpm, V y is 7.3 m/s-7.5 m/s; v y is 2.7 m/s-2.9 m/s when the motor 60 is lowered to a lower rotating speed of 300 rpm;
The opening degree of the air deflector 40 is kept unchanged at 20 ℃, and when the motor 60 reaches a higher rotating speed of 950rpm, V y is 7.4 m/s-7.6 m/s; when the motor 60 is lowered to a lower rotational speed of 300rpm, V y is 2.4m/s to 2.5m/s.
It can be seen that V y is in the range of 2.4m/s to 7.6m/s and V y fluctuates significantly when the opening of the air deflector 40 does not vary with the rotational speed of the motor 60, and V y is still as high as 5.9m/s to 7.6m/s when the motor 60 reaches a higher rotational speed of 950 rpm. Obviously, in the conventional ceiling fan, the opening degree of the air deflector 40 cannot be changed along with the change of the rotating speed of the motor 60, so that V y is greatly fluctuated, when the motor 60 reaches a higher rotating speed, V y is larger than 5m/s, V y is larger, the wind sense is stronger, and discomfort is easily caused to a user.
From the analysis, the ceiling fan provided by the invention has the advantages that the opening degree of the air plate is gradually reduced along with the increase of the rotating speed of the motor 60 and is gradually increased along with the decrease of the rotating speed of the motor 60, so that V y is smaller than 5m/s, V y is smaller, the wind sense is smaller, and the technical effect of causing discomfort to users is avoided.
Obviously, in other embodiments, a map parameter table for controlling the opening of the air deflector 40 according to the rotation speed of the motor 60 may be preset in the controller, where the map parameter table includes a plurality of preset rotation speeds and the opening of the air deflector 40 mapped corresponding to each preset rotation speed, and when the actual rotation speed of the motor 60 reaches one of the preset rotation speeds, the controller controls the air deflector 40 to rotate to the opening of the air deflector 40 corresponding to the preset rotation speed.
Referring to fig. 2 and 3, in another embodiment of the present invention, the motor 60 further has a reverse rotation mode, and when the motor 60 is in the reverse rotation mode, the fan 50 drives the air flow into the second air port 22 and blows out from the first air port 21.
Specifically, when the motor 60 is in the reverse rotation mode, the fan 50 drives the air flow to enter from the second air port 22, and when the air flow passes through the heat exchanger, heat exchange occurs between the air flow and the heat exchanger to form an air flow, and the air flow flows to the first air port 21 and is blown out from the first air port 21 under the driving of the wind wheel, so that indoor cooling/heating is realized. This mode is suitable for in the middle and late stages of refrigeration/heating, when the indoor required refrigeration/heating quantity is less, will the smallpox machine switch to make motor 60 be in reverse rotation mode, fan 50 drive air current gets into from second wind gap 22 to blow out from first wind gap 21, because first wind gap 21 is great at this moment, the air current diffusion scope is wider, and the air current is comparatively gentle, is difficult for causing user's discomfort.
Further to improve the air outlet effect of the first tuyere 21 in the reverse rotation mode of the motor 60, it is preferable that the opening degree of the air guide plate 40 is gradually increased as the rotation speed of the motor 60 is increased and gradually decreased as the rotation speed of the motor 60 is decreased.
Obviously, the opening degree of the air deflector 40 may be gradually increased with the increase of the rotation speed of the motor 60 and gradually decreased with the decrease of the rotation speed of the motor 60 in a curve transition shape. Or the opening degree of the air deflector 40 is gradually increased along with the increase of the rotating speed of the motor 60 and gradually decreased along with the decrease of the rotating speed of the motor 60 in a fold line transition shape. Or the opening degree of the air deflector 40 is gradually increased along with the increase of the rotation speed of the motor 60 and gradually decreased along with the decrease of the rotation speed of the motor 60 in a step transition shape.
The foregoing description is only of the preferred embodiments of the present invention and is not intended to limit the scope of the invention, and all equivalent structural changes made by the description of the present invention and the accompanying drawings or direct/indirect application in other related technical fields are included in the scope of the invention.
Claims (9)
1. The ceiling machine is characterized by comprising a shell, a wind wheel arranged in the shell and a panel covered at the lower end of the shell, wherein the wind wheel comprises a fan and a motor connected with the fan, and the panel is provided with a first air port and a second air port positioned at the periphery of the first air port; the ceiling machine further comprises an air deflector rotatably arranged in the second air opening and a driving device connected with the air deflector, wherein a controller of the ceiling machine is electrically connected with the motor and the driving device, and the controller controls the driving device to drive the air deflector to rotate to open the opening of the second air opening according to the rotating speed of the motor;
The controller is internally preset with a rotation speed change function formula N (t) for controlling the rotation speed of the motor to change along with time and an opening change function formula theta (t) for controlling the opening of the air deflector to change along with the same time, wherein:
N(t)＝(2e-0.5t1 6-0.002t1 5+0.134t1 4-3.395t1 3+34.39t1 2-68.66t1+369.5),N is the rotating speed/rpm of the motor, and t 1 is the running time/min of the motor;
θ(t)＝(2e-0.6t2 6+0.000t2 5-0.015t2 4+0.390t2 3-4.096t2 2+10.44t2+76.62),θ is the opening degree/°, t 2＝t1 +Δt, Δt is the time difference of the deflection of the air deflector lagging behind the rotation of the motor, and Δt e [0min,5min ].
2. The ceiling fan of claim 1, wherein the motor has a forward rotation mode, and wherein the fan drives air flow into the first air port and out of the second air port when the motor is in the forward rotation mode.
3. The ceiling fan according to claim 2, wherein the opening of the air deflector gradually decreases in a curved transition shape as the rotational speed of the motor increases and gradually increases as the rotational speed of the motor decreases.
4. The ceiling fan according to claim 2, wherein the opening of the air deflector is gradually decreased in a fold line transition shape as the rotation speed of the motor increases and gradually increased as the rotation speed of the motor decreases.
5. The ceiling fan according to claim 2, wherein the opening degree of the air deflector is gradually decreased in a stepwise transition shape as the rotation speed of the motor increases, and gradually increased as the rotation speed of the motor decreases.
6. The ceiling fan of claim 1, wherein the motor has a reverse rotation mode, and wherein the fan drives air flow into the second air port and out of the first air port when the motor is in the reverse rotation mode.
7. The ceiling fan of claim 6, wherein the opening of the air deflector gradually increases as the rotational speed of the motor increases and gradually decreases as the rotational speed of the motor decreases.
8. A smallpox according to any one of claims 1 to 7 wherein the maximum speed of the motor is N 1/rpm and the minimum speed of the motor is N 2/rpm, and wherein the actual speed of the motor is N/rpm when the controller is controlling the motor switching speed, N e [ N 1,0.7N2 ].
9. The ceiling fan according to any one of claims 1 to 7, wherein the air deflector has an opening of θ, θ∈ [30 °,85 ° ].
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| CN201711200186.5A CN107830578B (en) | 2017-11-23 | 2017-11-23 | Ceiling machine |
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| CN201711200186.5A CN107830578B (en) | 2017-11-23 | 2017-11-23 | Ceiling machine |
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| CN107830578B true CN107830578B (en) | 2024-04-30 |
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| CN210688677U (en) * | 2019-10-31 | 2020-06-05 | 广东美的制冷设备有限公司 | Panel assembly of ceiling machine and ceiling machine with panel assembly |
| CN113587244B (en) * | 2021-07-22 | 2022-11-25 | 海信空调有限公司 | Ceiling machine, interface socket and method for controlling air deflector of ceiling machine |
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