CN105546681B - Device, air conditioner and method for preventing cooling fan from reversing - Google Patents
Device, air conditioner and method for preventing cooling fan from reversing Download PDFInfo
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- CN105546681B CN105546681B CN201610072955.7A CN201610072955A CN105546681B CN 105546681 B CN105546681 B CN 105546681B CN 201610072955 A CN201610072955 A CN 201610072955A CN 105546681 B CN105546681 B CN 105546681B
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- cooling fan
- fan motor
- wind direction
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- 238000001816 cooling Methods 0.000 title claims abstract description 103
- 238000000034 method Methods 0.000 title claims abstract description 21
- 230000008859 change Effects 0.000 claims abstract description 42
- 230000000694 effects Effects 0.000 claims abstract description 14
- 230000005540 biological transmission Effects 0.000 claims description 31
- 238000004378 air conditioning Methods 0.000 claims description 19
- 230000033001 locomotion Effects 0.000 claims description 15
- 230000002441 reversible effect Effects 0.000 claims description 15
- 238000006073 displacement reaction Methods 0.000 claims description 8
- 230000007774 longterm Effects 0.000 claims description 7
- 239000007787 solid Substances 0.000 claims 1
- 238000007664 blowing Methods 0.000 abstract description 4
- 239000000428 dust Substances 0.000 abstract description 4
- 230000003749 cleanliness Effects 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 10
- 239000003507 refrigerant Substances 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000009434 installation Methods 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 230000001133 acceleration Effects 0.000 description 1
- 210000001367 artery Anatomy 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N ferric oxide Chemical compound O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000005057 refrigeration Methods 0.000 description 1
- 230000007306 turnover Effects 0.000 description 1
- 210000003462 vein Anatomy 0.000 description 1
Classifications
-
- 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
- F24F1/06—Separate outdoor units, e.g. outdoor unit to be linked to a separate room comprising a compressor and a heat exchanger
- F24F1/46—Component arrangements in separate outdoor units
- F24F1/48—Component arrangements in separate outdoor units characterised by air airflow, e.g. inlet or outlet airflow
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
- Air Conditioning Control Device (AREA)
Abstract
The invention discloses a device, an air conditioner and a method for preventing a cooling fan from reversing. The device comprises a frame, a fan and a fan, wherein the frame is used for being arranged outside the cooling fan; the grid, the grid sets up the air intake department of frame, and with frame swing joint is used for through control the activity of grid is in order to change the air inlet wind direction of frame. The grille capable of rotating at an angle is arranged at the air outlet of the outdoor unit, the angle of the grille is controlled, the headwind blowing into the inner side of the outdoor unit is reduced, the motor starting failure caused by high-speed reversion in the initial stage of motor driving of the cooling fan is prevented, and the purpose that the variable frequency air conditioner can be started in different external wind power environments is achieved. Meanwhile, foreign matters and dust can be reduced to enter the air conditioner outdoor unit through the closed grids, and the cleanliness of the system is improved.
Description
Technical field
The present invention relates to cooling fan technical field more particularly to it is a kind of prevent cooling fan reverse device, air-conditioning and
Method.
Background technique
Air-conditioning includes refrigeration and heat-production functions, can be divided into one-piece type and separation type.In general, the room of separation type air-conditioning
Interior machine is located at interior, is used for indoor cooling.Its outdoor unit is located at outdoor, is connected by refrigerant pipe with indoor unit.Outdoor unit with
Outside air contact allows after the cold media gas condensation in condenser, by refrigerant pipe cold and using outside air as cooling media
Matchmaker is supplied to the evaporator of indoor unit.Outdoor unit includes compressor, condenser, cooling fan.Compressor supplies after refrigerant is compressed
Condenser should be given.Aerial condenser is condensed by refrigerant.In order to allow condenser constantly to condense refrigerant, cooling fan blows outside air
To aerial condenser.
After the starting of air conditioner instruction for receiving user, starting of air conditioner is controlled, and controls cooling fan starting.But if having
Cooling fan is blowed to against the wind, cooling fan rotates the opposite direction of the driving direction to driving motor.It cannot make cooling fan
It is rotated to the driving direction of driving motor rapidly, so that cooling fan starting failure, and then influence normally making for air-conditioning
With.Currently, preventing air-conditioner outdoor unit cooling fan from reversing mainly is utilized in the outdoor cooling fan of setting prevention in motor body
The device of reverse is realized.For example, being provided with one-way clutch in the rotary shaft of driving motor, only axial rotary is allowed to drive
The driving direction of motor rotates, and prevents the reverse of rotary shaft.But above-mentioned apparatus structure is relative complex, and production and processing difficulty is big, no
Suitable for mass production.
Summary of the invention
In view of this, the embodiment of the present invention provides a kind of device, air-conditioning and method for preventing cooling fan from reversing, to solve
When blowing to cooling fan against the wind, cooling fan counter-rotating, and then cooling fan is caused to start the technical issues of failing.
In a first aspect, the embodiment of the invention provides a kind of devices for preventing cooling fan from reversing, comprising:
Frame, the frame are used to be arranged in the outside of cooling fan；
Grid, the air inlet of the frame is arranged in the grid, and is flexibly connected with the frame, for passing through control
The activity of the grid is made to change the air inlet wind direction of the frame.
Further, described device further include:
Driving device, the driving device are used to drive the activity of the grid to change the air inlet wind direction of the frame.
Further, described device further include:
Controller, the controller are connect with the driving device, for changing the frame by control driving device
Air inlet wind direction.
Further, the driving device, comprising:
Mobile connection bar, the mobile connection bar is and hinged with the grid perpendicular to the grid, for filling in driving
It sets and lower edge is driven to move perpendicular to the direction of the grid, and then drive grid simultaneously relative to the frame member same angular
Degree.
Further, the driving device includes:
Stepper motor；
Described device further include: transmission device, the transmission device respectively with the stepper motor and the transmission device
Connection, the mobile connection bar and the transmission device are hinged, for the movement of the stepper motor to be passed to the movement
Connecting rod.
Further, the transmission device includes:
The articulated shaft of U-shaped transmission arm, fixed mobile connection bar one end is embedded in the U-shaped opening of the U-shaped transmission arm,
The U-shaped transmission arm drives the mobile connection bar to move along the direction perpendicular to the grid by articulated shaft.
Further, the controller is connected with the stepper motor, for controlling the displacement of stepper motor, with basis
Wind direction outside the frame controls the activity of the grid, changes the air inlet wind direction of the frame.Further, described device is also
Include: fixed connecting rod, the fixed connecting rod along being fixedly connected on said frame with the grid vertical direction, and with institute
It is hinged to state grid.
Further, the controller includes:
Direction controlling unit, for controlling the relative angle between the grid and the frame, to change the air inlet
Wind direction；
Starting fan unit, for starting fan motor after changing air inlet wind direction；
Start successfully judging unit, for judging whether the fan motor starts success, if the fan motor opens
It moves successfully, then when cooling fan motor revolving speed meets preset condition, indicates that the direction controlling unit changes the air inlet wind
To realize maximum air output；If the fan motor starting is unsuccessful, the direction controlling unit Reverse Turning Control is indicated
Relative angle between the grid and the frame, to change the air inlet wind direction.
Further, the direction controlling unit is specifically used for: the angle between adjustment grid and frame is to predetermined angle
θ, the predetermined angle θ are determined according to the long-term wind direction of outdoor environment.
Further, the preset condition is that cooling fan motor revolving speed reaches maximum.
Second aspect, the embodiment of the invention also provides it is a kind of prevent cooling fan reverse air-conditioning, comprising: indoor unit and
Outdoor unit, the outdoor unit include the device for preventing cooling fan from reversing provided by above-described embodiment.
The third aspect, the embodiment of the invention also provides a kind of methods for preventing cooling fan from reversing, and the method is by upper
The device that stating prevents cooling fan from reversing is realized, comprising:
The relative angle between the grid and the frame is controlled, to change the air inlet wind direction；
Start fan motor, judges whether the fan motor starts success；
If the fan motor starts successfully, when cooling fan motor revolving speed meets preset condition, described in change
Wind direction is entered the wind, to realize maximum air output.
Further, further includes:
If the fan motor starts unsuccessful, the relative angle between grid described in Reverse Turning Control and the frame
Degree, to change the air inlet wind direction；
Start fan motor, judges whether the fan motor starts success.
If the fan motor starts successfully, when cooling fan motor revolving speed meets preset condition, described in change
Wind direction is entered the wind, to realize maximum air output.
Further, the relative angle between the grid and the frame is controlled, includes: to change the air inlet wind direction
The angle between grid and frame is adjusted to predetermined angle θ, the predetermined angle θ is determining according to the long-term wind direction of outdoor environment.
Further, the preset condition is that cooling fan motor revolving speed reaches maximum.
Device, air-conditioning and the method provided in an embodiment of the present invention for preventing cooling fan from reversing passes through going out in outdoor unit
The grid of angle rotatable is set at air port, and controls the angle of grid, reduces the contrary wind being blown on the inside of outdoor unit, prevents cold
But the initial stage high speed of fan motor driving, which reverses, causes electric motor starting to fail, and realizes transducer air conditioning in extraneous different wind-force
All bootable purpose under environment.Meanwhile can also be entered inside air-conditioner outdoor unit by closure grid reduction foreign matter, dust, it mentions
High system clean degree.
Detailed description of the invention
By reading a detailed description of non-restrictive embodiments in the light of the attached drawings below, of the invention other
Feature, objects and advantages will become more apparent upon:
Fig. 1 is the structural schematic diagram for the device for preventing cooling fan from reversing that the embodiment of the present invention one provides；
Fig. 2 is the scheme of installation for the device for preventing cooling fan from reversing that the embodiment of the present invention one provides；
Fig. 3 is amplified at A in the structural schematic diagram for the device for preventing cooling fan from reversing that the embodiment of the present invention one provides
Schematic diagram；
Fig. 4 is the flow diagram of the method provided by Embodiment 2 of the present invention for preventing cooling fan from reversing；
Fig. 5 is the flow diagram for the method for preventing cooling fan from reversing that the embodiment of the present invention three provides.
The technical characteristic in appended drawing reference the respectively referred to generation in figure are as follows:
1, frame；2, grid；3, mobile connection bar；4, fixed connecting rod；
5, U-shaped transmission arm.
Specific embodiment
The present invention is described in further detail with reference to the accompanying drawings and examples.It is understood that this place is retouched
The specific embodiment stated is used only for explaining the present invention rather than limiting the invention.It also should be noted that in order to just
In description, only some but not all contents related to the present invention are shown in the drawings.
Embodiment one
Fig. 1 is the structural schematic diagram for the device for preventing cooling fan from reversing that the embodiment of the present invention one provides.Fig. 2 is this hair
What bright embodiment one provided prevents the scheme of installation of the device of cooling fan reverse.Referring to Fig. 1 and Fig. 2, described to prevent from cooling down
The device that fan reverses, comprising: frame 1, the frame 1 are used to be arranged in the outside of cooling fan (not shown)；Grid
2, the air inlet of the frame 1 is arranged in the grid 2, and is flexibly connected with the frame 1, for by controlling the lattice
The movable air inlet wind direction to change the frame 1 of grid 2.The frame 1 is mounted on outdoor unit it can be seen from Fig. 1 and Fig. 2
Outside, and it is set to the outside of cooling fan.The air inlet of the frame 1 is provided with grid 2, is similar in 2 face of grid
When the parallel frame, grid 2 is in off state, and cooling fan and external environment can be effectively isolated.The grid 2 and frame
Frame 1 is flexibly connected, and for the activity by controlling the grid to change the air inlet wind direction relative to the frame 1, passes through lattice
The activity of grid 2, the angle between adjustable 2 face of grid and the frame 1, thus it is possible to vary the external wind in 1 outside of frame enters
Angle in outdoor machine frame 1, and then realize that cooling wind can be isolated by obstructing the purpose that extraneous high wind enters in outdoor unit
In the case where fan and external environment, cooling fan reverse under the blowing of extraneous high wind in outdoor unit is avoided.It can be by manual
The activity of grid 2 is adjusted, realizes and changes the purpose that frame 1 enters the wind wind direction.
In addition, the device provided in this embodiment for preventing cooling fan from reversing, further includes: driving device, the driving dress
Setting can connect for power drive units, the driving devices such as rotating electric machine or cylinders with grid 2, can drive the lattice
The activity of grid 2 is changed the air inlet wind direction of the frame 1, can be stopped the high wind outside outdoor unit, make room by the rotation of grid 2
High wind outside outer machine can not be directly blown into outdoor unit.Room can be avoided while with maintaining the circulation of air outside outdoor unit
Cooling fan reverse under the blowing of extraneous high wind in outer machine.
Further, in the present embodiment, the driving device is preferably stepper motor, and stepper motor is to believe electric pulse
Number it is changed into the opened loop control member stepper motor part of angular displacement or displacement of the lines.The revolving speed of motor, the position of stopping are solely dependent upon arteries and veins
The frequency and umber of pulse for rushing signal, without being influenced by load variation, when step actuator receives a pulse signal, stepping
Motor rotates a fixed angle by the direction of setting, and rotation is run step by step with fixed angle.It can lead to
Control pulse number is crossed to control angular displacement, to achieve the purpose that accurate positionin；It simultaneously can be by controlling pulse frequency
Come control motor rotation velocity and acceleration, to achieve the purpose that speed regulation.It can be quasi- using stepper motor as driving device
Really make grid according to preset angular mobility, and grid activity can be driven in a short time to preset angle.
Fig. 3 is amplified at A in the structural schematic diagram for the device for preventing cooling fan from reversing that the embodiment of the present invention one provides
Schematic diagram, as seen from Figure 3, the device for preventing cooling fan from reversing include multiple grids in the air inlet of frame
2, to enable all grids 2, perhaps partial grid 2 is consistent movable so that all grids 2 or partial grid 2 can be simultaneously
Equal angular is rotated relative to the frame 1.In the present embodiment, the driving device further include: mobile connection bar 3, it is described
Mobile connection bar 3 is and hinged with the grid 2 perpendicular to the grid 2, for driving grid 2 simultaneously relative to the frame 1
Rotate equal angular.When mobile connection bar 3 moves left and right, drives hinged grid 2 while rotating.And mobile connection bar 3 hangs down
Directly in grid 2, the grid 3 can rotate equal angular under the drive of mobile connection bar 2, relative to the frame 1.
Since stepper motor is rotary motion, and mobile connection bar 3 is laterally transported along the direction perpendicular to the grid 2
It is dynamic, to make stepper motor be able to drive 3 transverse movement of mobile connection bar, need to convert rotational motion into transverse shifting.At this
In embodiment, the transmission device further include: transmission device, the transmission device respectively with the stepper motor and the transmission
Device connection, the mobile connection bar 3 and the transmission device are hinged, described for passing to the movement of the stepper motor
Mobile connection bar 3.Illustratively, the transmission device can be U-shaped transmission arm 5, as shown in Figure 1, on the U-shaped transmission arm 5
The articulated shaft (not shown) for being provided with fixed described 3 one end of mobile connection bar of a U-shaped opening is embedded in the U-shaped transmission arm 5
U-shaped opening in, the U-shaped transmission arm 5 drives the mobile connection bar 3 along the side perpendicular to the grid 2 by articulated shaft
To movement.In stepper motor rotation, the axis of stepper motor is connected with U-shaped transmission arm 5, and U-shaped transmission arm 5 is driven to rotate, U-shaped
U-shaped opening drives the articulated shaft transverse shifting of 3 one end of mobile connection bar on transmission arm 5, and then mobile connection bar 3 is driven laterally to move
It is dynamic.Realize the purpose that stepper motor rotary motion is converted to 3 transverse movement of mobile connection bar.
If grid 2 is only flexibly connected with frame 1, when extraneous wind-force is larger, the activity of grid 2 and frame 1 can be made even
It connects position and bears biggish power.After prolonged use, the articulated positions of grid 2 and frame 1 can be made to damage, Jin Erying
Ring the use to the device for preventing cooling fan from reversing.It is in the present embodiment, described to prevent from cooling down to avoid above situation
The device that fan reverses, further includes: fixed connecting rod 4.Referring to Fig. 1 and Fig. 3, the device for preventing cooling fan from reversing includes at least
One fixed connecting rod 4, the fixed connecting rod 4 are fixedly connected on the frame 1 along with 2 vertical direction of grid, and
It is hinged with the grid 2.It is hinged by fixed connecting rod 4 and grid 2, the proper motion of grid 2 is not influenced.Fixed connecting rod 4
Along being fixedly connected on the frame 1 with 2 vertical direction of grid, the extraneous wind-force that can be born grid 2 is uniform
The articulated position for decomposing fixed connecting rod 4 Yu grid 2 avoids the articulated positions of grid 2 and frame 1 from damaging.
In the present embodiment, described device further include: controller, the controller connect with the driving device, be used for
Change the air inlet wind direction of the frame 1 by controlling driving device.It, can be according to described in the adjustment of the direction of setting by controller
The purpose for changing the air inlet wind direction of the frame 1 is realized in the movement of grid 2.Specifically, in the present embodiment, in driving device
When for stepper motor, controller is connected with the stepper motor, for controlling the displacement of stepper motor, according to the frame
Outer wind direction controls the activity of the grid 2, changes the air inlet wind direction of the frame 1.The signal that controller issues enters stepping
After motor driver, it can be converted into heavy current signal required for stepper motor as driver, drive stepper motor operating.Control
Device can accurately control stepper motor and turn over each angle.
Specifically, the controller includes:
Direction controlling unit, for controlling the relative angle between the grid 2 and the frame 1, with change it is described into
Wind wind direction；
Starting fan unit, for starting fan motor after changing air inlet wind direction；
Start successfully judging unit, for judging whether the fan motor starts success, if the fan motor opens
It moves successfully, then when cooling fan motor revolving speed meets preset condition, indicates that the direction controlling unit changes the air inlet wind
To realize maximum air output；If the fan motor starting is unsuccessful, the direction controlling unit Reverse Turning Control is indicated
Relative angle between the grid 2 and the frame 1, to change the air inlet wind direction.
Wherein, the direction controlling unit is specifically used for: the angle between adjustment grid 2 and frame 1 to predetermined angle θ,
The predetermined angle θ is determined according to the long-term wind direction of outdoor environment；The preset condition is that cooling fan motor revolving speed reaches most
Greatly.
Controller can be realized by software or hardware mode.Illustratively, when realizing in hardware, the control
Device includes: controllor for step-by-step motor, PLC chip, switching circuit and working state indicating circuit etc..By preparatory in PLC chip
The displacement for the stepper motor of storage to be converted in advance according to the relative angle between the grid 2 and the frame 1, and by institute
The displacement input controllor for step-by-step motor for stating stepper motor, exports corresponding letter from controllor for step-by-step motor to stepper motor
Number, so that stepper motor drives grid 2 to move, adjust the relative angle between grid 1 and frame 2.In adjustment grid 1 and frame
After the completion of relative angle between frame 2, PLC chip issues corresponding signal, and switching circuit is connected, and starts cooling fan motor.
And the signal fed back according to working state indicating circuit, judge whether the fan motor starts success.And it is tied according to judgement
Fruit adjusts the relative angle between grid and frame by controllor for step-by-step motor and stepper motor.Realize the angle of control grid 2
Degree reduces the contrary wind being blown on the inside of outdoor unit, and preventing the initial stage high speed driven in cooling fan motor from reversing leads to motor
Start the purpose of failure.Controller can be realized the relative angle between grid described in adjust automatically and the frame, without using
Family is adjusted manually, reduces the operation complexity of user, the user experience is improved.In addition, the controller also can receive
The instruction that user is issued by remote controler is adjusted the relative angle between grid and frame, realizes and reduces foreign matter, dust
Into inside air-conditioner outdoor unit, the purpose of system clean degree is improved.
The device provided in this embodiment for preventing cooling fan from reversing, can be rotated by being arranged at the air outlet of outdoor unit
The grid of angle, and the angle of grid is controlled, the contrary wind being blown on the inside of outdoor unit is reduced, is prevented in cooling fan motor driving
Initial stage high speed, which reverses, causes electric motor starting to fail, and realizes that transducer air conditioning is all bootable under extraneous different wind environments
Purpose.Meanwhile can also be entered inside air-conditioner outdoor unit by closure grid reduction foreign matter, dust, improve system clean degree.
Further, the embodiment of the invention also provides a kind of air-conditioning for preventing cooling fan from reversing, the air-conditioning includes
Indoor unit and outdoor unit, the outdoor unit include the above-mentioned device for preventing cooling fan from reversing, and corresponding functions can be realized.?
This is not repeated them here.
Embodiment two
Fig. 4 is the flow diagram of the method provided by Embodiment 2 of the present invention for preventing cooling fan from reversing.The present embodiment
The provided method for preventing cooling fan from reversing is held using the device provided by the above embodiment for preventing cooling fan from reversing
Row.
Referring to fig. 4, the method for preventing cooling fan from reversing, comprising:
Step 210, the relative angle between the grid and the frame is controlled, to change the air inlet wind direction.
Since air-conditioner outdoor unit is located at outdoor, and outdoor environment is in constantly variation.If air-conditioning is installed in more
The northern area of wind, often since outdoor wind-force is larger, is blown into outdoor unit inside at spring and autumn, drives outdoor unit
Cooling fan reverse so that cooling fan motor can not start.In the present embodiment, by adjusting setting in air conditioning chamber
The relative angle between grid and the outdoor machine frame outside outer machine cooling fan, can keep inside outdoor unit and outer
While portion's air circulation, changes the air inlet direction of outdoor unit, effectively avoid extraneous high wind, keep cooling fan motor normal
Starting.Illustratively, after once can running shutdown on air-conditioning, or in air-conditioning pretrigger, the grid and institute are controlled
The relative angle between frame is stated, to change the air inlet wind direction.Specifically, angle between adjustment grid and frame is to default
Angle, θ, the predetermined angle θ are determined according to the long-term wind direction of outdoor environment.Illustratively, it is counted according to meteorological data, if
The long-term wind direction of outdoor environment is northwester, then sets 45 ° for predetermined angle, changes the air inlet wind direction to realize, avoids
The purpose of extraneous high wind.Can be rotated by stepper motor drives U-shaped transmission arm to rotate, and U-shaped opening, which drives, on U-shaped transmission arm moves
The articulated shaft transverse shifting of dynamic connecting rod one end, and then drive mobile connection bar transverse shifting.Stepper motor rotary motion conversion
For mobile connection bar transverse movement, mobile connection bar drives grid relative to the frame member equal angular θ, to change institute simultaneously
State air inlet wind direction.
Step 220, start fan motor, judge whether the fan motor starts success.
After controlling the relative angle between the grid and the frame, it can be closed the switching circuit of fan motor,
Start cooling fan motor.And the work shape of cooling fan can be obtained by the working state indicating circuit with cooling fan
State judges whether the fan motor starts success based on working condition.
Step 230, if the fan motor starts successfully, when cooling fan motor revolving speed meets preset condition,
Change the air inlet wind direction, to realize maximum air output.
After cooling fan starting operates normally, need to readjust the angle between grid adjustment grid and frame, with
Make to be achieved maximum air output.Cooling fan can carry out heat exchange with the external world.Illustratively, grid can be adjusted to
Frame is at plumbness.In the present embodiment, when cooling fan motor revolving speed meets preset condition, change the air inlet wind
To realize maximum air output.Specifically, the revolving speed of cooling fan motor can be reached to maximum value as preset condition, i.e.,
When the revolving speed of fan motor reaches maximum value, and cooling fan motor runs well, change the air inlet wind direction, to realize maximum
Air output.
The device provided in this embodiment for preventing cooling fan from reversing, can be rotated by being arranged at the air outlet of outdoor unit
The grid of angle, and the angle of grid is controlled, the contrary wind being blown on the inside of outdoor unit is reduced, is prevented in cooling fan motor driving
Initial stage high speed, which reverses, causes electric motor starting to fail, and realizes that transducer air conditioning is all bootable under extraneous different wind environments
Purpose.And when cooling fan motor works normally, change the air inlet wind direction, to realize maximum air output.So that described
Cooling fan can preferably carry out heat exchange with extraneous, and reduce the noise of cooling fan.
Embodiment three
Fig. 5 is the flow diagram for the method for preventing cooling fan from reversing that the embodiment of the present invention three provides.The present embodiment
Based on embodiment two, further, the method also includes: it is reversed to control if fan motor starting is unsuccessful
The relative angle between the grid and the frame is made, to change the air inlet wind direction；Start fan motor, judges the wind
Whether fan motor starts success.If the fan motor starts successfully, meet preset condition in cooling fan motor revolving speed
When, change the air inlet wind direction, to realize maximum air output.
Referring to Fig. 5, the method for preventing cooling fan from reversing, comprising:
Step 310, the relative angle between the grid and the frame is controlled, to change the air inlet wind direction.
Step 320, start fan motor, judge whether the fan motor starts success.
Step 330, if the fan motor starts successfully, when cooling fan motor revolving speed meets preset condition,
Change the air inlet wind direction, to realize maximum air output.
Step 340, if fan motor starting is unsuccessful, between grid described in Reverse Turning Control and the frame
Relative angle, to change the air inlet wind direction.
If cooling fan motor starts failure for the first time, it may be considered that front grid and opposite between the frame
Angle has catered to the wind direction of external environment.It needs reversely to adjust the relative angle between the grid and the frame at this time, with
Change the air inlet wind direction.Illustratively, twice of predetermined angle can be rotated counterclockwise in the opposite direction, so that lattice
Relative angle between grid and the frame can bear away direction.
Step 350, start fan motor, judge whether the fan motor starts success.
Step 360, if the fan motor starts successfully, when cooling fan motor revolving speed meets preset condition,
Change the air inlet wind direction, to realize maximum air output.
The present embodiment is by increasing following steps: if the fan motor starts unsuccessful, lattice described in Reverse Turning Control
Relative angle between grid and the frame, to change the air inlet wind direction；Start fan motor, judges that the fan motor is
It is no to start successfully.If the fan motor starts successfully, when cooling fan motor revolving speed meets preset condition, change institute
Air inlet wind direction is stated, to realize maximum air output.Can cooling fan motor for the first time starting failure after, adjust the grid with
Relative angle between the frame, to change the air inlet wind direction.It can be between extraneous wind direction and grid and the frame
Relative angle it is close when, by being adjusted to the relative angle between grid and the frame, change the air inlet wind direction.
Realize the contrary wind for reducing and being blown on the inside of outdoor unit, preventing the initial stage high speed driven in cooling fan motor from reversing leads to motor
Transducer air conditioning all bootable purpose under extraneous different wind environments is realized in starting failure.
In a preferred embodiment of the present embodiment, if after fan motor starting is unsuccessful, reversely
The relative angle between the grid and the frame is controlled, before changing the air inlet wind direction, further includes:
Be delayed preset duration, by before fan motor starts, increasing delay preset duration, can make the fan electricity
Machine protects the fan motor circuit, avoids causing fan motor due to continuously starting after first time starting failure
Failure.
Note that the above is only a better embodiment of the present invention and the applied technical principle.It will be appreciated by those skilled in the art that
The invention is not limited to the specific embodiments described herein, be able to carry out for a person skilled in the art it is various it is apparent variation,
It readjusts and substitutes without departing from protection scope of the present invention.Therefore, although being carried out by above embodiments to the present invention
It is described in further detail, but the present invention is not limited to the above embodiments only, without departing from the inventive concept, also
It may include more other equivalent embodiments, and the scope of the invention is determined by the scope of the appended claims.
Claims (13)
1. a kind of device for preventing cooling fan from reversing, it is characterised in that, described device includes:
Frame (1), the frame (1) is mounted on the outside of outdoor unit, and the outside of cooling fan is arranged in；
Grid (2), the air inlet in the frame (1) is arranged in the grid (2), and is flexibly connected with the frame (1), uses
Change the air inlet wind direction of the frame (1) in the activity by controlling the grid (2)；
Described device further include:
Driving device, the driving device are used to drive the activity of the grid (2) to change the air inlet wind of the frame (1)
To；
Described device further include:
Controller, the controller are connect with the driving device, for changing the frame (1) by control driving device
Enter the wind wind direction；
The controller includes:
Direction controlling unit, for controlling the relative angle between the grid (2) and the frame (1), with change it is described into
Wind wind direction；
Starting fan unit, for starting fan motor after changing air inlet wind direction；
Start successfully judging unit, for judging whether the fan motor starts success, if the fan motor starting at
Function indicates that the direction controlling unit changes the air inlet wind direction then when cooling fan motor revolving speed meets preset condition, with
Realize maximum air output；If the fan motor starting is unsuccessful, indicate described in the direction controlling unit Reverse Turning Control
Relative angle between grid (2) and the frame (1), to change the air inlet wind direction.
2. the apparatus according to claim 1, which is characterized in that the driving device, comprising:
Mobile connection bar (3), the mobile connection bar are used for perpendicular to the grid (2), and hingedly with the grid (2)
Driving device drives lower edge to move perpendicular to the direction of the grid (2), and then drives grid (2) simultaneously relative to the frame
(1) equal angular is rotated.
3. the apparatus of claim 2, which is characterized in that the driving device includes:
Stepper motor；
Described device further include: transmission device, the transmission device are connect with the stepper motor, the mobile connection bar (3)
It is hinged with the transmission device, for the movement of the stepper motor to be passed to the mobile connection bar (3).
4. device according to claim 3, which is characterized in that the transmission device includes:
U-shaped transmission arm (5), the U-shaped that the articulated shaft of fixed described mobile connection bar (3) one end is embedded in the U-shaped transmission arm (5) are opened
In mouthful, the U-shaped transmission arm (5) drives the mobile connection bar (3) along the direction perpendicular to the grid (2) by articulated shaft
Movement.
5. device according to claim 3, which is characterized in that the controller is connected with the stepper motor, is used for
The displacement of stepper motor is controlled, to control the activity of the grid (2) according to the wind direction of the frame (1) outside, changes the frame
The air inlet wind direction of frame (1).
6. the apparatus according to claim 1, which is characterized in that described device further include: fixed connecting rod (4), it is described solid
Determine connecting rod (4) edge to be fixedly connected on the frame (1) with the grid (2) vertical direction, and is cut with scissors with the grid (2)
It connects.
7. the apparatus according to claim 1, which is characterized in that the direction controlling unit is specifically used for: adjustment grid (2)
For angle between frame (1) to predetermined angle θ, the predetermined angle θ is determining according to the long-term wind direction of outdoor environment.
8. the apparatus according to claim 1, which is characterized in that the preset condition is that cooling fan motor revolving speed reaches most
Greatly.
9. a kind of air-conditioning for preventing cooling fan from reversing, comprising: indoor unit and outdoor unit, which is characterized in that the outdoor unit packet
Include any device for preventing cooling fan from reversing of claim 1-8.
10. a kind of method for preventing cooling fan from reversing, which is characterized in that using claim 1-8 it is any it is described prevent it is cold
But the device that fan reverses executes, which comprises
The relative angle between the grid and the frame is controlled, to change the air inlet wind direction；
Start fan motor, judges whether the fan motor starts success；
If the fan motor starts successfully, when cooling fan motor revolving speed meets preset condition, change the air inlet
Wind direction, to realize maximum air output.
11. according to the method described in claim 10, it is characterized by further comprising:
If the fan motor starts unsuccessful, the relative angle between grid described in Reverse Turning Control and the frame, with
Change the air inlet wind direction；
Start fan motor, judges whether the fan motor starts success；
If the fan motor starts successfully, when cooling fan motor revolving speed meets preset condition, change the air inlet
Wind direction, to realize maximum air output.
12. method described in 0 or 11 according to claim 1, which is characterized in that control the phase between the grid and the frame
It include: to adjust angle between grid and frame to predetermined angle θ, the preset angle to change the air inlet wind direction to angle
θ is spent to be determined according to the long-term wind direction of outdoor environment.
13. method described in 0 or 11 according to claim 1, which is characterized in that the preset condition is cooling fan motor revolving speed
Reach maximum.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610072955.7A CN105546681B (en) | 2016-02-02 | 2016-02-02 | Device, air conditioner and method for preventing cooling fan from reversing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610072955.7A CN105546681B (en) | 2016-02-02 | 2016-02-02 | Device, air conditioner and method for preventing cooling fan from reversing |
Publications (2)
| Publication Number | Publication Date |
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| CN105546681A CN105546681A (en) | 2016-05-04 |
| CN105546681B true CN105546681B (en) | 2018-12-21 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201610072955.7A Active CN105546681B (en) | 2016-02-02 | 2016-02-02 | Device, air conditioner and method for preventing cooling fan from reversing |
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| CN (1) | CN105546681B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108548446B (en) * | 2018-05-07 | 2024-06-04 | 江苏华塔冷却技术有限公司 | Intelligent air inlet adjusting system of cooling tower and adjusting method thereof |
| CN113032213A (en) * | 2021-03-24 | 2021-06-25 | 山东英信计算机技术有限公司 | Fan hot plug method, device, equipment and computer readable storage medium |
| CN113531823A (en) * | 2021-06-24 | 2021-10-22 | 江苏云洲智能科技有限公司 | Air conditioner external unit control method, electronic equipment and storage medium |
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| KR20010004765A (en) * | 1999-06-29 | 2001-01-15 | 윤종용 | Outdoor unit of an air conditioner |
| CN2663863Y (en) * | 2003-11-08 | 2004-12-15 | 海尔集团公司 | Air conditioner having novel guide vane fixing structure |
| CN2758533Y (en) * | 2004-12-31 | 2006-02-15 | 何松江 | Exhaustor with shutter |
| CN101329094A (en) * | 2007-06-20 | 2008-12-24 | 乐金电子(天津)电器有限公司 | Wind deflector structure of window air conditioner air exhaust opening |
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| CN105546681A (en) | 2016-05-04 |
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