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CN111637078A - Fan assembly, air processing device, control method and readable storage medium - Google Patents

Fan assembly, air processing device, control method and readable storage medium Download PDF

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Publication number
CN111637078A
CN111637078A CN202010525761.4A CN202010525761A CN111637078A CN 111637078 A CN111637078 A CN 111637078A CN 202010525761 A CN202010525761 A CN 202010525761A CN 111637078 A CN111637078 A CN 111637078A
Authority
CN
China
Prior art keywords
fan
air
state
wind pressure
pressure value
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
CN202010525761.4A
Other languages
Chinese (zh)
Inventor
余根
智建伟
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.)
Midea Group Co Ltd
Hefei Midea Heating and Ventilating Equipment Co Ltd
Original Assignee
Midea Group Co Ltd
Hefei Midea Heating and Ventilating Equipment Co Ltd
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 Midea Group Co Ltd, Hefei Midea Heating and Ventilating Equipment Co Ltd filed Critical Midea Group Co Ltd
Priority to CN202010525761.4A priority Critical patent/CN111637078A/en
Publication of CN111637078A publication Critical patent/CN111637078A/en
Pending legal-status Critical Current

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D25/00—Pumping installations or systems
    • F04D25/02—Units comprising pumps and their driving means
    • F04D25/08—Units comprising pumps and their driving means the working fluid being air, e.g. for ventilation
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D25/00—Pumping installations or systems
    • F04D25/16—Combinations of two or more pumps ; Producing two or more separate gas flows
    • F04D25/166—Combinations of two or more pumps ; Producing two or more separate gas flows using fans
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D27/00—Control, e.g. regulation, of pumps, pumping installations or pumping systems specially adapted for elastic fluids
    • F04D27/001—Testing thereof; Determination or simulation of flow characteristics; Stall or surge detection, e.g. condition monitoring
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D27/00—Control, e.g. regulation, of pumps, pumping installations or pumping systems specially adapted for elastic fluids
    • F04D27/003—Control, e.g. regulation, of pumps, pumping installations or pumping systems specially adapted for elastic fluids by throttling
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D27/00—Control, e.g. regulation, of pumps, pumping installations or pumping systems specially adapted for elastic fluids
    • F04D27/004—Control, e.g. regulation, of pumps, pumping installations or pumping systems specially adapted for elastic fluids by varying driving speed
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D27/00—Control, e.g. regulation, of pumps, pumping installations or pumping systems specially adapted for elastic fluids
    • F04D27/008—Stop safety or alarm devices, e.g. stop-and-go control; Disposition of check-valves
    • 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
    • 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
    • F24F1/0033—Indoor units, e.g. fan coil units characterised by fans having two or more 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
    • F24F1/0059—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
    • 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
    • F24F11/32—Responding to malfunctions or emergencies
    • F24F11/38—Failure diagnosis
    • 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
    • F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
    • F24F11/63—Electronic processing
    • F24F11/64—Electronic processing using pre-stored data
    • 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
    • F24F11/70—Control systems characterised by their outputs; Constructional details thereof
    • F24F11/72—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure
    • F24F11/74—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling air flow rate or air velocity
    • 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
    • F24F11/70—Control systems characterised by their outputs; Constructional details thereof
    • F24F11/72—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure
    • F24F11/74—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling air flow rate or air velocity
    • F24F11/77—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling air flow rate or air velocity by controlling the speed of ventilators
    • 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
    • F24F11/89—Arrangement or mounting of control or safety devices
    • 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

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Signal Processing (AREA)
  • Fuzzy Systems (AREA)
  • Mathematical Physics (AREA)
  • Health & Medical Sciences (AREA)
  • Biomedical Technology (AREA)
  • Thermal Sciences (AREA)
  • Ventilation (AREA)
  • Control Of Positive-Displacement Air Blowers (AREA)

Abstract

The invention provides a fan assembly, an air processing device, a control method and a readable storage medium. Wherein the fan assembly comprises at least one fan; the air inlet of the at least one fan is correspondingly arranged on the air inlet of the at least one fan, and the at least one air valve is configured to be suitable for performing opening and closing actions according to the running state of the corresponding fan in the at least one fan. The air valve executes the opening and closing state according to the running state of the corresponding fan, the opening and closing state of the air inlet of the fan can be switched according to the running state of the fan, the matching degree of the opening and closing state of the air inlet of the fan and the running state of the fan is improved, the defect that in the related technology, after one fan in a fan assembly fails and stops, the whole fan assembly needs to be closed is avoided, and the fan assembly can still normally run even if a fault fan exists in the fan assembly.

Description

Fan assembly, air processing device, control method and readable storage medium
Technical Field
The invention belongs to the technical field of air treatment machines, and particularly relates to a fan assembly, an air treatment device, a control method of the air treatment device and a computer readable storage medium.
Background
Air handling units are increasingly being used for ventilation in various public areas. When one of fan assemblies in the air handling unit breaks down, the whole unit must be stopped at the same time, and if the fan with the fault causes the fan blades of the motor to rotate reversely due to the reverse air duct, the motor, the power supply system and the control system are damaged.
Disclosure of Invention
The present invention is directed to solving one of the technical problems of the prior art or the related art.
To this end, a first aspect of the invention proposes a fan assembly.
A second aspect of the invention proposes an air treatment device.
A third aspect of the invention provides a control method of an air treatment device.
A fourth aspect of the invention is directed to a computer-readable storage medium.
In view of this, according to a first aspect of the present invention, there is provided a fan assembly comprising: at least one fan; the air inlet of the at least one fan is correspondingly arranged on the air inlet of the at least one fan, and the at least one air valve is configured to be suitable for performing opening and closing actions according to the running state of the corresponding fan in the at least one fan.
The fan assembly provided by the invention comprises at least one fan and at least one air valve, wherein each fan and each air valve are arranged in a one-to-one correspondence mode, the air inlet position of each fan is provided with one air valve, the opening and closing of the air valve can switch whether the air inlet of the fan can supply air or not, and the air valve performs opening and closing actions according to the running state of the corresponding fan. When the air valve is in an open state, flowing air can flow into the fan through the air inlet of the fan corresponding to the air valve, and when the air valve is in a closed state, the flowing air cannot enter the air inlet of the fan. The air valve executes the opening and closing state according to the running state of the corresponding fan, the opening and closing state of the air inlet of the fan can be switched according to the running state of the fan, the matching degree of the opening and closing state of the air inlet of the fan and the running state of the fan is improved, the running stability of the fan is improved, and the fan is prevented from being in failure due to unreasonable arrangement of the opening and closing state of the air inlet.
It can be understood that, when any fan in the fan assembly is in a shutdown state, because other fans in the fan assembly normally operate to generate air pressure difference on the air inlet side and the air outlet side of the fan assembly, the air pressure difference can drive the fan in the shutdown state to rotate, and the fan can generate electromotive force to damage electronic elements in the fan. According to the invention, the corresponding air valve is arranged in the air inlet channel of each fan in the fan assembly, and the air valve corresponding to the fan in the running stop state is in the closed state, so that the problem of fan damage caused by the influence of the air pressure difference on the fan in the running stop state is solved, and the running stability of the fan is further improved. The defect that in the related technology, after one fan in the fan assembly is stopped due to failure, the whole fan assembly needs to be closed completely is avoided, and the condition that the remaining non-failed fans can still normally operate even if the fan assembly has a failed fan is ensured.
The fan can be selected from a three-phase alternating current permanent magnet synchronous motor, in particular to a direct current variable frequency brushless motor with an intelligent control module arranged inside. The fan is provided with an air inlet channel and an air outlet, and the fan drives air to flow from the air inlet channel to the air outlet when in operation.
In addition, according to the fan assembly in the above technical scheme provided by the invention, the fan assembly can also have the following additional technical features:
in one possible design, the air valve is a gravity one-way air valve configured to close an air valve corresponding to the stopped fan based on the stop of any one of the at least one fan.
In this design, the damper may be selected to be a gravity check damper. After the fan that the blast gate corresponds began to move, the fan drives the air and flows, and the gravity of blast gate blade can be overcome to the air that flows, makes the blast gate be in the open mode, and the control of flow can enter into the fan from the inlet channel of fan, and the air outlet of rethread fan flows out the fan, realizes that the fan operation drives the effect that the air flows. And after the fan corresponding to the air valve stops running, the blade of the air valve is closed under the influence of self gravity.
Wherein the blast gate is one-way blast gate, when having the air from reverse flow through the blast gate promptly, the blade that can't drive the blast gate is opened, has avoided the fan under the shut down condition, and the blast gate that corresponds is opened automatically under the effect of wind pressure differential to the fan has been avoided taking place the reversal.
In one possible design, the fan assembly further includes: the air valve driving piece is connected with at least one air valve; the air valve driving piece controls the opening and closing actions of the corresponding air valve in the at least one air valve according to the running state of the at least one fan.
In this design, the fan subassembly still includes the blast gate driving piece, and the blast gate driving piece links to each other with at least one blast gate, and the blast gate driving piece can control the switching action of blast gate, has realized carrying out the effect of controlling the switching action of blast gate according to different situation, makes the switching state to the blast gate more nimble, is suitable for more use scenes.
It will be appreciated that the number of damper actuators may be one or more. One air valve driving piece controls a plurality of air valves independently, and one air valve driving piece can also control one air valve. When one air valve driving member controls one air valve, the corresponding number of air valve driving members need to be set according to the number of the air valves.
The air valve driving piece can be arranged as a driving part such as a push rod motor.
In a possible design, the step of controlling the opening and closing actions of the corresponding damper in the at least one damper according to the operation state of the at least one fan specifically includes: determining that any one of the at least one fan is in a shutdown state, and driving an air valve corresponding to the fan in the shutdown state by an air valve driving part to execute a closing action; and determining that any one of the at least one fan is in an un-stopped state, and driving the corresponding air valve of the fan in the un-stopped state to execute an opening action by the air valve driving part.
In the design, the fan in the shutdown state is found, the air valve driving piece drives the air valve corresponding to the fan in the shutdown state to be closed, the air valve corresponding to the fan in the shutdown state is prevented from being automatically opened under the action of the air pressure difference, and therefore the fan damage caused by the fact that the fan is reversed is avoided. When the fan in the non-stop state is found, the air valve driving piece drives the air valve corresponding to the fan in the non-stop state to open, so that the fan can drive air to flow into an air outlet of the fan from an air inlet channel of the fan.
In one possible design, the fan assembly further includes: the controller is connected with the at least one fan; the controller is used for determining that any one fan in the at least one fan is in a fault state and controlling and adjusting the running state of the at least one fan.
In the design, the fan assembly further comprises a controller, the controller is connected with the at least one fan, and if the controller finds that any one fan in the at least one fan is in a fault state, the controller controls and adjusts the running state of the at least one fan. When any fan in the fan assembly breaks down, the integral output air volume of the fan assembly can be changed, the fan in the fan assembly is controlled to act, the output air volume is maintained on the original output air volume, and the output air volume of the fan assembly in a failure state is ensured.
It can be understood that the controller can be connected to the fan driving member in one of the above possible designs, and the controller controls the fan to stop operating according to the condition that the fan is in a fault state, so as to determine that the fan is in a shutdown state, and then controls the air valve driving member to act to enable the air valve to be in a closed state. The fan is in a non-fault state to control the normal operation of the fan, and the action of the air valve driving piece is controlled to enable the air valve to be in an opening state. The controller is used for controlling the fault fan to stop running and controlling the corresponding air valve to act, so that the timeliness and the accuracy of closing the air valve are guaranteed, and the condition of mistakenly closing or mistakenly closing cannot occur.
In one possible design, the specific step of controlling and adjusting the operating state of at least one fan includes: and determining that a first fan in a fault state exists in at least one fan, and controlling the first fan to stop running.
In the design, the first fan in the fan assembly in the fault state is searched and determined, the first fan is controlled to stop running, the first fan damage caused by the fact that the first fan runs for too long time in the fault state is avoided, and the running stability of the fan running assembly is improved.
The fault state is that the fan operates in an overcurrent state, the fan operates in an overvoltage state and the like.
In one possible design, the fan assembly further includes: the output end of at least one fan is communicated with the air outlet channel; the sensing device is arranged in the air outlet channel, is connected with the controller and is suitable for acquiring the air pressure value in the air outlet channel; the step of controller control adjustment at least one fan operating condition still includes: and determining that a second fan in a non-fault state exists in at least one fan, and controlling and adjusting the running state of the second fan according to the wind pressure value.
In this design, the fan subassembly still includes the air-out passageway, and the output of all fans in the fan subassembly all links to each other with the air-out passageway of fan subassembly, still is provided with sensing device in the air-out passageway, and sensing device can detect the gas flow in the air-out passageway, confirms the wind pressure value in the air-out passageway, and the total output amount of wind that the wind pressure value can reflect the fan subassembly. When the second fan in the non-fault state exists in the fan assembly, the second fan in the non-fault state is controlled according to the wind pressure value capable of reflecting the total output wind quantity of the fan assembly, and the accuracy of controlling the operation parameters of the second fan assembly is improved.
It can be understood that when a first fan in a failure state and a second fan in a non-failure state exist in the fan assembly at the same time, the first fan is controlled to stop, the second fan is controlled to operate according to a wind pressure value, the fan assembly is guaranteed to operate in an original output wind volume mode, and the influence on the total output wind volume of the fan assembly after the failure fan in the fan assembly stops is reduced.
In a possible design, the step of controlling and adjusting the operation state of the second fan by the controller according to the wind pressure value specifically includes: collecting a first wind pressure value in an air outlet channel based on the stop of the first fan; controlling the second fan to improve the running power to run according to the condition that the first wind pressure value is smaller than the set wind pressure value; and controlling the second fan to operate at the current operation power according to the first wind pressure value reaching the set wind pressure value.
In the design, when the first fan in the fault state stops running, a first wind pressure value in the wind outlet channel is collected. And judging whether the first wind pressure value is smaller than a set wind pressure value or not, under the normal condition, stopping the operation of the first fan, reducing the total output wind volume of the fan assembly, and controlling the second fan in a non-failure state to improve the operation power. And continuously detecting the change of the first wind pressure value, and when the first wind pressure reaches the set wind pressure, controlling the second fan to operate at the current operating power to ensure that the fan assembly can maintain the total output wind volume of the first fan in the state of not stopping. Even there is the trouble fan in the fan subassembly, the fan subassembly still can export former total output amount of wind, reduces the influence of trouble fan to the fan subassembly operation, improves user's use and experiences.
In a possible design, the step of controlling the operation of the second fan according to the wind pressure value further includes: acquiring a second wind pressure value in the air outlet channel based on the fact that the operating power of the second fan reaches the set operating power; and determining that the second wind pressure value is smaller than the set wind pressure value, controlling the second fan to operate at the set operation power, and outputting insufficient wind pressure information.
In this design, the fan assembly further includes a display device or a sound generating device. And in the process of controlling the second fan to improve the operating power, when the operating power of the second fan reaches the set operating power, judging that the second fan cannot continuously improve the operating power. At the moment, a second wind pressure value in the wind outlet channel is collected, and if the second wind pressure value reaches a set wind pressure value, the second fan is controlled to continue to operate; and if the second wind pressure value reaches the set wind pressure value, controlling the second fan to continuously operate, and outputting insufficient wind pressure information through a display device or a sound generating device to prompt a user that the total output wind volume of the fan assembly is insufficient at the moment.
It will be appreciated that the set operating power may be the rated operating power or the maximum operating power of the second wind turbine.
According to a second aspect of the present invention there is provided an air treatment device comprising: a fan assembly as in any of the above possible designs; the heat exchanger is connected with the fan assembly; and the heat exchanger is connected with an air outlet channel of the fan assembly.
The air treatment device provided by the invention comprises the fan assembly in any one of the possible designs, so that the air treatment device has the full beneficial effects of the fan assembly in any one of the possible designs.
The air treatment device further comprises a heat exchanger and a temperature sensor, the heat exchanger is an evaporator or a condenser, the heat in the heat exchanger is output to a set position by the output air quantity of the fan assembly, the temperature sensor is arranged in an air outlet channel of the fan assembly and used for detecting the air temperature in the air outlet channel of the fan assembly, and the temperature of the refrigerant in the heat exchanger is controlled according to the temperature in the air outlet channel of the fan assembly, so that the control on the air treatment device is realized.
According to a third aspect of the present invention, there is provided a control method for an air treatment device, for use in any one of the above possible designs, the control method comprising: determining that any fan in the at least one fan is in a fault state, and controlling and adjusting the running state of the at least one fan; and controlling the opening and closing actions of the corresponding air valve in the at least one air valve according to the running state of the at least one fan.
The control method of the air processing device provided by the invention comprises the steps of determining the fans in the fan assemblies in the air processing device, wherein the fans are in fault states, connecting the controller with at least one fan, and controlling and adjusting the running state of at least one fan when the controller finds that any fan in the at least one fan is in a fault state. When any fan in the fan assembly breaks down, the integral output air volume of the fan assembly can be changed, the fan in the fan assembly is controlled to act, the output air volume is maintained on the original output air volume, and the output air volume of the fan assembly in a failure state is ensured. According to the running state of the fan in the fan assembly, the opening and closing state of the air valve is controlled, the corresponding air valve is prevented from being automatically opened under the action of the air pressure difference when the fan is stopped, and therefore the problem that the fan is damaged due to the fact that the fan is reversely rotated is avoided. The defect that in the related technology, after one fan in the fan assembly is stopped due to failure, the whole fan assembly needs to be closed completely is avoided, and the condition that the remaining non-failed fans can still normally operate even if the fan assembly has a failed fan is ensured.
In addition, according to the control method of the air treatment device in the above technical solution provided by the present invention, the following additional technical features may be further provided:
in a possible design, the step of controlling and adjusting the operating state of at least one fan specifically includes: determining that a first fan in a fault state exists in at least one fan, and controlling the first fan to stop running; and determining that a second fan in a non-fault state exists in at least one fan, and controlling and adjusting the running state of the second fan according to the wind pressure value.
In the design, the first fan in the fan assembly in the fault state is searched and determined, the first fan is controlled to stop running, the first fan damage caused by the fact that the first fan runs for too long time in the fault state is avoided, and the running stability of the fan running assembly is improved. And determining the total output air quantity of a fan assembly in the air treatment device, wherein the air pressure value can reflect the total output air quantity of the fan assembly. When the second fan in the non-fault state exists in the fan assembly, the second fan in the non-fault state is controlled according to the wind pressure value capable of reflecting the total output wind quantity of the fan assembly, and the accuracy of controlling the operation parameters of the second fan assembly is improved.
It can be understood that when a first fan in a failure state and a second fan in a non-failure state exist in the fan assembly at the same time, the first fan is controlled to stop, the second fan is controlled to operate according to a wind pressure value, the fan assembly is guaranteed to operate in an original output wind volume mode, and the influence on the total output wind volume of the fan assembly after the failure fan in the fan assembly stops is reduced.
In a possible design, the step of controlling and adjusting the operating state of the second fan according to the wind pressure value specifically includes: collecting a first wind pressure value in an air outlet channel based on the stop of the first fan; controlling the second fan to improve the running power to run according to the condition that the first wind pressure value is smaller than the set wind pressure value; and controlling the second fan to operate at the current operation power according to the first wind pressure value reaching the set wind pressure value.
In the design, when the first fan in the fault state stops running, a first wind pressure value in the wind outlet channel is collected. And judging whether the first wind pressure value is smaller than a set wind pressure value or not, under the normal condition, stopping the operation of the first fan, reducing the total output wind volume of the fan assembly, and controlling the second fan in a non-failure state to improve the operation power. And continuously detecting the change of the first wind pressure value, and when the first wind pressure reaches the set wind pressure, controlling the second fan to operate at the current operating power to ensure that the fan assembly can maintain the total output wind volume of the first fan in the state of not stopping. Even there is the trouble fan in the fan subassembly, the fan subassembly still can export former total output amount of wind, reduces the influence of trouble fan to the fan subassembly operation, improves user's use and experiences.
In a possible design, the step of controlling the operation of the second fan according to the wind pressure value further includes: acquiring a second wind pressure value in the air outlet channel based on the fact that the operating power of the second fan reaches the set operating power; and determining that the second wind pressure value is smaller than the set wind pressure value, controlling the second fan to operate at the set operation power, and outputting insufficient wind pressure information.
In this design, the fan assembly further includes a display device or a sound generating device. And in the process of controlling the second fan to improve the operating power, when the operating power of the second fan reaches the set operating power, judging that the second fan cannot continuously improve the operating power. At the moment, a second wind pressure value in the wind outlet channel is collected, and if the second wind pressure value reaches a set wind pressure value, the second fan is controlled to continue to operate; and if the second wind pressure value reaches the set wind pressure value, controlling the second fan to continuously operate, and outputting insufficient wind pressure information through a display device or a sound generating device to prompt a user that the total output wind volume of the fan assembly is insufficient at the moment.
It will be appreciated that the set operating power may be the rated operating power or the maximum operating power of the second wind turbine.
In a possible design, the step of controlling the opening and closing actions of the corresponding damper in the at least one damper according to the operating state of the at least one fan specifically includes: determining that any one of the at least one fan is in a shutdown state, and controlling an air valve driving piece to drive an air valve corresponding to the fan in the shutdown state to execute a closing action; and determining that any one of the at least one fan is in an un-stopped state, and controlling the air valve driving part to drive the air valve corresponding to the fan in the un-stopped state to execute an opening action.
In this design, the fan subassembly still includes the blast gate driving piece, and the blast gate driving piece links to each other with at least one blast gate, and the blast gate driving piece can control the switching action of blast gate, has realized carrying out the effect of controlling the switching action of blast gate according to different situation, makes the switching state to the blast gate more nimble, is suitable for more use scenes. When the fan in the shutdown state is found, the air valve driving part drives the air valve corresponding to the fan in the shutdown state to be closed, and the air valve corresponding to the fan in the shutdown state is prevented from being automatically opened under the action of the air pressure difference, so that the fan is prevented from being damaged due to the fact that the fan is reversed. When the fan in the non-stop state is found, the air valve driving piece drives the air valve corresponding to the fan in the non-stop state to open, so that the fan can drive air to flow into an air outlet of the fan from an air inlet channel of the fan.
It will be appreciated that the number of damper actuators may be one or more. One air valve driving piece controls a plurality of air valves independently, and one air valve driving piece can also control one air valve. When one air valve driving member controls one air valve, the corresponding number of air valve driving members need to be set according to the number of the air valves.
According to a fourth aspect of the present invention, there is provided a computer-readable storage medium having stored thereon a computer program which, when executed by a processor, implements the control method of the air treatment device in any of the possible designs described above, thereby having all the advantageous technical effects of the control method of the air treatment device in any of the possible designs described above.
Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.
Drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
FIG. 1 illustrates a schematic structural view of a fan assembly of one embodiment of the present invention;
FIG. 2 illustrates a schematic structural view of a fan and damper in a fan assembly according to an embodiment of the present invention;
FIG. 3 illustrates a schematic structural view of a fan and damper in a fan assembly according to another embodiment of the present invention;
FIG. 4 shows a flow diagram of a control method of an air treatment device of an embodiment of the invention;
FIG. 5 shows a flow chart diagram of a control method of an air treatment device according to another embodiment of the invention;
FIG. 6 shows a flow chart diagram of a control method of an air treatment device according to yet another embodiment of the invention;
FIG. 7 shows a flow chart diagram of a control method of an air treatment device according to yet another embodiment of the invention;
fig. 8 is a flow chart showing a control method of the air treatment device according to the complete embodiment of the invention.
Wherein, the correspondence between the reference numbers and the component names in fig. 1 to 3 is:
100 fans, 120 centrifugal wind wheels, 140 fan supporting frames, 200 wind valves and 300 controllers.
Detailed Description
In order that the above objects, features and advantages of the present invention can be more clearly understood, a more particular description of the invention will be rendered by reference to the appended drawings. It should be noted that the embodiments of the present invention and features of the embodiments may be combined with each other without conflict.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced in other ways than those specifically described herein, and therefore the scope of the present invention is not limited by the specific embodiments disclosed below.
A fan assembly, an air treatment device, a control method of an air treatment device, and a computer-readable storage medium according to some embodiments of the present invention are described below with reference to fig. 1 to 8.
The first embodiment is as follows:
as shown in fig. 1, one embodiment of the present invention provides a fan assembly comprising: the air conditioner comprises at least one fan 100 and at least one air valve 200, wherein the air valves 200 are arranged at the air inlets of the fan 100 in a one-to-one correspondence mode, the number of the air valves 200 corresponds to that of the fans 100, and the at least one air valve 200 is configured to be suitable for performing opening and closing actions according to the running state of the corresponding fan 100 in the at least one fan 100.
In this embodiment, the fan assembly includes at least one fan 100 and at least one air valve 200, wherein each fan 100 and each air valve 200 are disposed in a one-to-one correspondence manner, an air valve 200 is disposed at an air inlet of each fan 100, opening and closing of the air valve 200 can switch whether air can be supplied to the air inlet of the fan 100, and the air valve 200 performs opening and closing according to an operating state of the corresponding fan 100. When the air valve 200 is in the open state, the flowing air can flow into the fan 100 through the air inlet of the fan 100 corresponding to the air valve 200, and when the air valve 200 is in the closed state, the flowing air cannot enter the air inlet of the fan 100. The air valve 200 executes the open-close state according to the corresponding running state of the fan 100, and can switch the open-close state of the air inlet of the fan 100 according to the running state of the fan 100, so that the matching degree of the open-close state of the air inlet of the fan 100 and the running state of the fan 100 is improved, the running stability of the fan 100 is improved, and the fault caused by unreasonable setting of the open-close state of the air inlet of the fan 100 is avoided.
It can be understood that, when any fan 100 in the fan assembly is in the shutdown state, because the other fans 100 in the fan assembly normally operate to generate an air pressure difference between the air inlet side and the air outlet side of the fan assembly, the air pressure difference can drive the fan 100 in the shutdown state to rotate, and the fan 100 can generate an electromotive force to damage electronic components inside the fan 100. According to the invention, the corresponding air valve 200 is arranged in the air inlet channel of each fan 100 in the fan assembly, and the air valve 200 corresponding to the fan 100 in the running stop state is in the closed state, so that the problem that the fan 100 in the running stop state is damaged due to the influence of the air pressure difference is solved, and the running stability of the fan 100 is improved. The defect that in the related art, after one fan 100 in the fan assembly is in failure and shutdown, the whole fan assembly needs to be completely closed is also avoided, and the fan assembly is ensured to still normally operate the residual non-failure fans 100 even if the fan assembly has the failure fan 100.
As shown in fig. 2, the wind turbine 100 further includes a centrifugal wind rotor 120 and a wind turbine support frame 140. The one-way air valve 200 is arranged at the air inlet position of the fan.
The fan 100 may be a three-phase ac permanent magnet synchronous motor, specifically, a dc brushless motor with an intelligent control module inside. The blower has an air inlet channel and an air outlet, and the blower 100 drives air to flow from the air inlet channel to the air outlet when in operation.
Example two:
as shown in fig. 1, another embodiment of the present invention provides a fan assembly, including: the air valves 200 are arranged at the air inlets of the fans 100 in a one-to-one correspondence manner, and the air valves 200 are used for executing opening and closing actions according to the corresponding running states of the fans 100.
The air valve 200 is a gravity one-way air valve, and is used for closing the air valve 200 corresponding to the fan 100 in the stopped state when the fan 100 is in the stopped state.
In this embodiment, the damper 200 may be selected to be a gravity check damper.
As shown in fig. 2, after the fan 100 corresponding to the air valve 200 starts to operate, the fan 100 drives air to flow, the flowing air can overcome the gravity of the blade of the air valve 200, so that the air valve 200 is in an open state, the flow control can enter the fan 100 from the air inlet channel of the fan 100, and then the air flows out of the fan 100 through the air outlet of the fan 100, so that the effect that the fan 100 operates to drive air to flow is achieved.
As shown in fig. 3, when the fan 100 corresponding to the air valve 200 stops operating, the blade of the air valve 200 is closed under the influence of its own weight.
Wherein blast gate 200 is one-way blast gate, when having air from reverse flow through blast gate 200 promptly, can't drive the blade of blast gate 200 and open, avoided fan 100 under the shut down condition, corresponding blast gate 200 is automatic to be opened under the effect of wind pressure differential to fan 100 has been avoided taking place the reversal.
Example three:
as shown in fig. 1, yet another embodiment of the present invention provides a fan assembly comprising: the air valve driving device comprises at least one fan 100, air valves 200 and air valve driving parts, wherein the number of the air valves 200 is the same as that of the at least one fan 100, the air valves 200 are arranged at air inlets of the fans 100 in a one-to-one correspondence mode, and the air valves 200 are used for executing opening and closing actions according to the corresponding running state of the fans 100. The air valve driving member controls the opening and closing of the air valve 200 corresponding to the fan 100 according to the operation state of the fan 100.
In this embodiment, the fan assembly further includes an air valve driving member, the air valve driving member is connected to at least one air valve 200, and the air valve driving member can control the opening and closing actions of the air valve 200, so that the effect of controlling the opening and closing actions of the air valve 200 according to different situations is realized, the opening and closing states of the air valve 200 are more flexible, and the fan assembly is suitable for more use scenes.
It will be appreciated that the number of damper actuators may be one or more. One air valve driving member controls a plurality of air valves 200 individually, or one air valve driving member may control one air valve 200. In the case that one air valve driving member controls one air valve 200, a corresponding number of air valve driving members need to be provided according to the number of the air valves 200.
The air valve driving piece can be arranged as a driving part such as a push rod motor.
In the above embodiment, the step of performing the opening and closing operation according to the corresponding operation state of the fan 100 is as follows:
finding that any fan 100 in the fan assembly stops running, and driving the corresponding air valve 200 of the fan 100 which stops running to be closed by the air valve driving piece; searching the fan 100 which is determined to be in the non-stop state in the fan assembly, and driving the air valve 200 corresponding to the fan 100 in the non-stop state to open by the air valve driving part so that the flowing air can pass through the air inlet channel of the fan assembly.
In this embodiment, the fan 100 in the shutdown state is found, the air valve driving member drives the air valve 200 corresponding to the fan 100 in the shutdown state to close, and the air valve 200 corresponding to the fan 100 in the shutdown state is prevented from being automatically opened under the action of the air pressure difference, so that the fan 100 is prevented from being damaged due to the reverse rotation of the fan 100. When the blower 100 in the non-stop state is found, the air valve driving member drives the air valve 200 corresponding to the blower 100 in the non-stop state to open, so that the blower 100 can drive air to flow into the air outlet of the blower 100 from the air inlet channel of the blower 100.
Example four:
as shown in fig. 1, yet another embodiment of the present invention provides a fan assembly, including: the air valves 200 are arranged at the air inlets of the fans 100 in a one-to-one correspondence manner, and the air valves 200 are used for executing opening and closing actions according to the corresponding running states of the fans 100.
The fan subassembly still includes: and a controller 300 connected to at least one of the wind turbines 100, wherein the controller 300 controls the operation state of the wind turbine 100 in the wind turbine assembly to adjust according to the existence of the wind turbine 100 in a failure state in the wind turbine assembly.
In this embodiment, the wind turbine assembly further includes a controller 300, the controller 300 is connected to at least one wind turbine 100, and if the controller 300 finds that any wind turbine 100 in the at least one wind turbine 100 is in a failure state, the controller controls and adjusts the operation state of the at least one wind turbine 100. When any fan 100 in the fan assembly fails, the output air volume of the whole fan assembly is changed, the fan 100 in the fan assembly is controlled to act, the output air volume is maintained on the original output air volume, and the output air volume of the fan assembly in a failure state is ensured.
It is understood that the controller 300 can be connected to the driving member of the wind turbine 100 in any of the above embodiments, and the controller 300 controls the wind turbine 100 to stop operating according to the failure condition of the wind turbine 100, so as to determine that the wind turbine 100 is in the shutdown condition, and then controls the operation of the wind valve driving member to make the wind valve 200 in the closed condition. When the fan 100 is in a non-failure state, the fan 100 is controlled to normally operate, and the air valve driving part is controlled to act to enable the air valve 200 to be in an opening state. The controller 300 controls the fault fan 100 to stop running and controls the corresponding air valve 200 to act, so that the timeliness and the accuracy of closing the air valve 200 are guaranteed, and the condition of mistakenly closing or mistakenly closing cannot occur.
In the above embodiment, the step of the controller 300 adjusting the operation state of at least one wind turbine 100 in the wind turbine assembly includes: and searching a first fan 100 in a fault state in at least one fan 100, and controlling the first fan 100 to stop running.
In this embodiment, the first fan 100 in the fan assembly in the failure state is found and determined, and the first fan 100 is controlled to stop operating, so that damage to the first fan 100 caused by the fact that the first fan 100 operates for a long time in the failure state is avoided, and the operation stability of the fan 100 operating assembly is improved.
The fault state is an operation fault that the fan 100 operates in an overcurrent state, the fan 100 operates in an overvoltage state, and the like.
In any of the above embodiments, the fan assembly further includes an air outlet channel communicated with the output end of the at least one fan 100, and a sensing device is disposed in the air outlet channel, and the sensing device can collect a wind pressure value in the air outlet channel and send the wind pressure value to the controller 300.
The step of the controller 300 adjusting the operation state of at least one wind turbine 100 further includes:
searching a second fan 100 in a non-failure state in the fan assembly, and controlling and adjusting the running state of the second fan 100 according to the wind pressure value;
after controlling the first fan 100 in the fault state to stop running, acquiring a first wind pressure value in an air outlet channel; controlling the second fan 100 to improve the operation power according to the first wind pressure value being smaller than the set wind pressure value;
controlling the second fan 100 to operate at the current operation power according to the first wind pressure value reaching the set wind pressure value;
acquiring a second wind pressure value in the wind outlet channel based on the fact that the operating power of the second fan 100 reaches the set operating power;
and determining that the second wind pressure value is smaller than the set wind pressure value, controlling the second fan 100 to operate at the set operation power, and outputting insufficient wind pressure information.
In this embodiment, the fan assembly further includes an air outlet channel, the output ends of all fans 100 in the fan assembly are all connected with the air outlet channel of the fan assembly, a sensing device is further disposed in the air outlet channel, the sensing device can detect the air flow in the air outlet channel, the air pressure value in the air outlet channel is determined, and the air pressure value can reflect the total output air volume of the fan assembly. When the second fan 100 in the non-fault state exists in the fan assembly, the second fan 100 in the non-fault state is controlled according to the wind pressure value capable of reflecting the total output wind volume of the fan assembly, and the accuracy of controlling the operation parameters of the second fan assembly is improved. When the first fan 100 in the fault state stops operating, a first wind pressure value in the air outlet channel is collected. And judging whether the first wind pressure value is smaller than a set wind pressure value or not, under the normal condition, stopping the operation of the first fan 100, reducing the total output wind volume of the fan assembly, and controlling the second fan 100 in a non-failure state to improve the operation power. And continuously detecting the change of the first wind pressure value, and when the first wind pressure reaches the set wind pressure, controlling the second fan 100 to operate at the current operating power to ensure that the fan assembly can maintain the total output wind volume of the first fan 100 in the state of not stopping. Even there is trouble fan 100 in the fan subassembly, the fan subassembly still can output former total output amount of wind, reduces the influence of trouble fan 100 to the fan subassembly operation, improves user's use and experiences. The fan assembly further includes a display device or a sound generating device. In the process of controlling the second fan 100 to increase the operating power, when the operating power of the second fan 100 reaches the set operating power, it is determined that the second fan 100 cannot continuously increase the operating power. At this time, a second wind pressure value in the wind outlet channel is collected, and if the second wind pressure value reaches a set wind pressure value, the second fan 100 is controlled to continue to operate; if the second wind pressure value reaches the set wind pressure value, the second fan 100 is controlled to continue to operate, and wind pressure insufficiency information is output through the display device or the sound generating device, so that a user is prompted that the total output wind volume of the fan assembly is insufficient at the moment.
It is understood that the set operating power may be a rated operating power or a maximum operating power of the second wind turbine 100. When the first fan 100 in the failure state and the second fan 100 in the non-failure state exist in the fan assembly at the same time, the first fan 100 is controlled to stop, the second fan 100 is controlled to operate according to the wind pressure value, the fan assembly can be ensured to maintain the original output wind volume operation, and the influence on the total output wind volume of the fan assembly after the failure fan 100 in the fan assembly stops is reduced.
Example five:
one embodiment of the present invention provides an air treatment device, including: a fan assembly as in any of the embodiments above; the heat exchanger is connected with the fan assembly; and the heat exchanger is connected with an air outlet channel of the fan assembly.
The air treatment device provided by the invention comprises the fan assembly in any one of the embodiments, so that the air treatment device has all the advantages of the fan assembly in any one of the embodiments.
The air treatment device further comprises a heat exchanger and a temperature sensor, the heat exchanger is an evaporator or a condenser, the heat in the heat exchanger is output to a set position by the output air quantity of the fan assembly, the temperature sensor is arranged in an air outlet channel of the fan assembly and used for detecting the air temperature in the air outlet channel of the fan assembly, and the temperature of the refrigerant in the heat exchanger is controlled according to the temperature in the air outlet channel of the fan assembly, so that the control on the air treatment device is realized.
Example six:
as shown in fig. 4, an embodiment of the present invention provides a control method of an air treatment device, which is used for the air treatment device in any one of the above embodiments, and the control method includes:
step S402, determining that any fan in fan assemblies in the air processing device is in a fault state, and controlling and adjusting the running state of at least one fan;
and S404, controlling the opening and closing actions of the corresponding air valve in the at least one air valve according to the running state of the at least one fan.
In this embodiment, a fan in a fan assembly in the air processing device is determined to be in a failure state, the controller is connected to at least one fan, and if the controller finds that any fan in the at least one fan is in the failure state, the controller controls and adjusts the operation state of the at least one fan. When any fan in the fan assembly breaks down, the integral output air volume of the fan assembly can be changed, the fan in the fan assembly is controlled to act, the output air volume is maintained on the original output air volume, and the output air volume of the fan assembly in a failure state is ensured. According to the running state of the fan in the fan assembly, the opening and closing state of the air valve is controlled, the corresponding air valve is prevented from being automatically opened under the action of the air pressure difference when the fan is stopped, and therefore the problem that the fan is damaged due to the fact that the fan is reversely rotated is avoided. The defect that in the related technology, after one fan in the fan assembly is stopped due to failure, the whole fan assembly needs to be closed completely is avoided, and the condition that the remaining non-failed fans can still normally operate even if the fan assembly has a failed fan is ensured.
As shown in fig. 5, the step of controlling and adjusting the operation state of at least one fan specifically includes:
step S502, searching and determining a first fan in a fault state in a fan assembly, and controlling the first fan to stop running;
and step S504, searching and determining a second fan in a non-failure state in the fan assembly, and adjusting the running state of the second fan according to the collected wind pressure value.
In the embodiment, the first fan in the fan assembly in the fault state is searched and determined, the first fan is controlled to stop running, the first fan is prevented from being damaged due to the fact that the first fan runs for too long time in the fault state, and the running stability of the fan running assembly is improved. And determining the total output air quantity of a fan assembly in the air treatment device, wherein the air pressure value can reflect the total output air quantity of the fan assembly. When the second fan in the non-fault state exists in the fan assembly, the second fan in the non-fault state is controlled according to the wind pressure value capable of reflecting the total output wind quantity of the fan assembly, and the accuracy of controlling the operation parameters of the second fan assembly is improved.
It can be understood that when a first fan in a failure state and a second fan in a non-failure state exist in the fan assembly at the same time, the first fan is controlled to stop, the second fan is controlled to operate according to a wind pressure value, the fan assembly is guaranteed to operate in an original output wind volume mode, and the influence on the total output wind volume of the fan assembly after the failure fan in the fan assembly stops is reduced.
As shown in fig. 6, the step of controlling and adjusting the operation state of the second fan according to the wind pressure value specifically includes:
step S602, collecting a first wind pressure value in the wind outlet channel according to the condition that the first fan is in a stop operation state;
step S604, controlling the second fan to improve the running power to run according to the condition that the first wind pressure value is smaller than the set wind pressure value;
step S606, continuously detecting a first wind pressure value, and controlling the second fan to operate at the current operation power when the first wind pressure value reaches a set wind pressure value;
step S608, continuously detecting the operating power of the second fan, and collecting a second wind pressure value in the wind outlet channel when the operating power of the second fan reaches a set operating power;
and step S610, when the second wind pressure value is detected to be smaller than the set wind pressure value, controlling the second fan to operate at the set operation power, and outputting insufficient wind pressure information.
In this embodiment, when the first fan in the failure state stops operating, the first wind pressure value in the wind outlet channel is collected. And judging whether the first wind pressure value is smaller than a set wind pressure value or not, under the normal condition, stopping the operation of the first fan, reducing the total output wind volume of the fan assembly, and controlling the second fan in a non-failure state to improve the operation power. And continuously detecting the change of the first wind pressure value, and when the first wind pressure reaches the set wind pressure, controlling the second fan to operate at the current operating power to ensure that the fan assembly can maintain the total output wind volume of the first fan in the state of not stopping. Even there is the trouble fan in the fan subassembly, the fan subassembly still can export former total output amount of wind, reduces the influence of trouble fan to the fan subassembly operation, improves user's use and experiences. The fan assembly further includes a display device or a sound generating device. And in the process of controlling the second fan to improve the operating power, when the operating power of the second fan reaches the set operating power, judging that the second fan cannot continuously improve the operating power. At the moment, a second wind pressure value in the wind outlet channel is collected, and if the second wind pressure value reaches a set wind pressure value, the second fan is controlled to continue to operate; and if the second wind pressure value reaches the set wind pressure value, controlling the second fan to continuously operate, and outputting insufficient wind pressure information through a display device or a sound generating device to prompt a user that the total output wind volume of the fan assembly is insufficient at the moment.
It will be appreciated that the set operating power may be the rated operating power or the maximum operating power of the second wind turbine.
Example seven:
as shown in fig. 7, an embodiment of the present invention provides a control method of an air treatment device, which is used for the air treatment device in any one of the above embodiments, and the control method includes:
step S702, determining that any fan in fan assemblies in the air processing device is in a fault state, and controlling and adjusting the running state of at least one fan;
step S704, determining that any one of the at least one fan is in a shutdown state, and controlling an air valve driving part to drive an air valve corresponding to the fan in the shutdown state to execute a closing action;
step S706, determining that any one of the at least one fan is in an un-shutdown state, and controlling the air valve driving member to drive the air valve corresponding to the fan in the un-shutdown state to execute an opening action.
In this embodiment, the fan subassembly still includes the blast gate driving piece, and the blast gate driving piece links to each other with at least one blast gate, and the blast gate driving piece can control the switching action of blast gate, has realized carrying out the effect of controlling the switching action of blast gate according to different situation, makes the switching state to the blast gate more nimble, is suitable for more use scenes. When the fan in the shutdown state is found, the air valve driving part drives the air valve corresponding to the fan in the shutdown state to be closed, and the air valve corresponding to the fan in the shutdown state is prevented from being automatically opened under the action of the air pressure difference, so that the fan is prevented from being damaged due to the fact that the fan is reversed. When the fan in the non-stop state is found, the air valve driving piece drives the air valve corresponding to the fan in the non-stop state to open, so that the fan can drive air to flow into an air outlet of the fan from an air inlet channel of the fan.
It will be appreciated that the number of damper actuators may be one or more. One air valve driving piece controls a plurality of air valves independently, and one air valve driving piece can also control one air valve. When one air valve driving member controls one air valve, the corresponding number of air valve driving members need to be set according to the number of the air valves.
Example eight:
as shown in fig. 8, a complete embodiment of the present invention provides a control method of an air treatment device, which is used for the air treatment device in any of the above embodiments, and the control method includes:
step S802, detecting the fault state of each fan in the fan assembly;
step S804, judging whether the fan assembly has faults or not, if so, executing step S806, and if not, executing step S802;
step S806, the fan in the fault state is closed;
step S808, controlling an air valve corresponding to the fan in the fault state to be closed;
step S810, outputting fault prompt information of the fan;
step S812, increasing the running rotating speed of the fan in the non-fault state;
step S814, judging whether the fan assembly reaches a preset air volume or air pressure difference, if so, returning to the step S802, and if not, executing the step S816;
step S816, judging whether the fan in the non-fault state reaches the set rotating speed, if so, executing step S818, otherwise, executing step S812;
and step S818, outputting the information of the total output air quantity shortage of the air handling unit.
In this embodiment, when one or more of the fan assemblies in the air processing device fails, only the corresponding fan failure alarm is output, and the corresponding air valve is controlled to be closed, and if a gravity type one-way air valve is adopted, the air valve is automatically closed. Meanwhile, the rotating speed of the remaining normally-working fans can be increased to ensure that the air handling unit system can continuously operate, whether the set air volume or the air pressure difference is reached is judged by monitoring the air volume or the air pressure difference, and when the rotating speed of all the remaining normally-working fans reaches the highest rotating speed, if the target air volume or the air pressure difference is not reached, the fault that the air handling unit is insufficient in air volume is output.
The air treatment device comprises a fan assembly, and the fan assembly comprises six EC fans (direct-current variable-frequency brushless direct-current fans). And an air valve is arranged at the air inlet of each fan, and when the EC fan operates, the air valve is opened. When the fan fails, the fan is controlled to stop running, and the air valve is closed, so that the EC fan can be prevented from receiving the reverse rotation of the air pressure difference, and other fans without the failure can normally run; meanwhile, as the EC fan can operate in a speed-regulating mode, when the control system detects that one motor fails, the control signal of the motor is cut off, and meanwhile, the air valve is closed, so that the fan is prevented from reversing due to air pressure difference; the one-way air valve can be a mechanical air valve and a gravity type air valve, wherein the gravity type air valve can automatically close the air valve under the action of the self gravity of the blade when the motor stops rotating, and the mechanical air valve can forcibly close the air valve through an air valve driving piece.
Example nine:
an embodiment of the present invention provides a computer-readable storage medium having stored thereon a computer program which, when executed by a processor, implements the control method of the air treatment device as in any of the above embodiments, thus having all the advantageous technical effects of the control method of the air treatment device as in any of the above embodiments.
In the present invention, the term "plurality" means two or more unless explicitly defined otherwise. The terms "mounted," "connected," "fixed," and the like are to be construed broadly, and for example, "connected" may be a fixed connection, a removable connection, or an integral connection; "coupled" may be direct or indirect through an intermediary. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the description herein, the description of the terms "one embodiment," "some embodiments," "specific embodiments," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to 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 (16)

1. A fan assembly, comprising:
at least one fan;
the air valves are arranged at the air inlets of the fans in a one-to-one correspondence mode, and the air valves are configured to be suitable for performing opening and closing actions according to the running states of the fans corresponding to the fans.
2. The fan assembly of claim 1,
the air valve is a gravity one-way air valve and is configured to close the air valve corresponding to the stopped fan based on the stop of any fan in the at least one fan.
3. The fan assembly of claim 1, further comprising:
the air valve driving piece is connected with the at least one air valve;
and the air valve driving piece controls the opening and closing actions of the corresponding air valve in the at least one air valve according to the running state of the at least one fan.
4. The fan assembly according to claim 3, wherein the step of controlling the opening and closing of the corresponding one of the at least one air valve according to the operation state of the at least one fan specifically comprises:
determining that any one of the at least one fan is in a shutdown state, and driving the corresponding air valve in the shutdown state by an air valve driving part to execute a closing action;
and determining that any one fan in the at least one fan is in an un-stopped state, and driving the corresponding air valve in the un-stopped state to execute an opening action by the air valve driving part.
5. The fan assembly of any of claims 1 to 4, further comprising:
the controller is connected with the at least one fan; the controller is used for determining that any one fan in the at least one fan is in a fault state and controlling and adjusting the running state of the at least one fan.
6. The fan assembly of claim 5, wherein the step of controlling the adjustment of the operational state of the at least one fan comprises:
and determining that a first fan in a fault state exists in the at least one fan, and controlling the first fan to stop running.
7. The fan assembly of claim 6, further comprising:
the output end of the at least one fan is communicated with the air outlet channel;
the sensing device is arranged in the air outlet channel, is connected with the controller and is suitable for acquiring a wind pressure value in the air outlet channel;
the step of controller control adjustment at least one fan's running state still includes:
and determining that a second fan in a non-fault state exists in the at least one fan, and controlling and adjusting the running state of the second fan according to the wind pressure value.
8. The fan assembly according to claim 7, wherein the step of controlling and adjusting the operation state of the second fan according to the wind pressure value by the controller specifically comprises:
collecting a first wind pressure value in the air outlet channel based on the stop of the first fan;
controlling the second fan to improve the running power to run according to the condition that the first wind pressure value is smaller than a set wind pressure value;
and controlling the second fan to operate at the current operation power according to the first wind pressure value reaching the set wind pressure value.
9. The fan assembly of claim 8, wherein the step of controlling the operation of the second fan according to the wind pressure value further comprises:
acquiring a second wind pressure value in the air outlet channel based on the fact that the operating power of the second fan reaches a set operating power;
and determining that the second wind pressure value is smaller than the set wind pressure value, controlling the second fan to operate at the set operation power, and outputting insufficient wind pressure information.
10. An air treatment device, comprising:
the fan assembly of claims 1-9;
the heat exchanger is connected with the fan assembly;
and the heat exchanger is connected with an air outlet channel of the fan assembly.
11. A control method for an air treatment device according to claim 10, comprising:
determining that any fan in the at least one fan is in a fault state, and controlling and adjusting the running state of the at least one fan;
and controlling the opening and closing actions of the corresponding air valve in the at least one air valve according to the running state of the at least one fan.
12. The control method according to claim 11, wherein the step of controlling and adjusting the operating state of at least one fan specifically comprises:
determining that a first fan in a fault state exists in the at least one fan, and controlling the first fan to stop running;
and determining that a second fan in a non-fault state exists in the at least one fan, and controlling and adjusting the running state of the second fan according to the wind pressure value.
13. The control method according to claim 12, wherein the step of controlling and adjusting the operation state of the second fan according to the wind pressure value specifically comprises:
collecting a first wind pressure value in the air outlet channel based on the stop of the first fan;
controlling the second fan to improve the running power to run according to the condition that the first wind pressure value is smaller than a set wind pressure value;
and controlling the second fan to operate at the current operation power according to the first wind pressure value reaching the set wind pressure value.
14. The control method according to claim 13, wherein the step of controlling the second fan to operate according to the wind pressure value further comprises:
acquiring a second wind pressure value in the air outlet channel based on the fact that the operating power of the second fan reaches a set operating power;
and determining that the second wind pressure value is smaller than the set wind pressure value, controlling the second fan to operate at the set operation power, and outputting insufficient wind pressure information.
15. The control method according to any one of claims 11 to 14, wherein the step of controlling the opening and closing of the corresponding damper in the at least one damper according to the operating state of the at least one fan specifically comprises:
determining that any one of the at least one fan is in a shutdown state, and controlling an air valve driving piece to drive an air valve corresponding to the fan in the shutdown state to execute a closing action;
and determining that any one fan in the at least one fan is in an un-stopped state, and controlling the air valve driving part to drive the air valve corresponding to the fan in the un-stopped state to execute an opening action.
16. A computer-readable storage medium, characterized in that a computer program is stored thereon, which computer program, when being executed by a processor, carries out a control method of an air treatment device according to any one of claims 11 to 15.
CN202010525761.4A 2020-06-10 2020-06-10 Fan assembly, air processing device, control method and readable storage medium Pending CN111637078A (en)

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