CN112421878A - Fan reversing control system, control method and equipment - Google Patents

Fan reversing control system, control method and equipment Download PDF

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Publication number
CN112421878A
CN112421878A CN202011249628.7A CN202011249628A CN112421878A CN 112421878 A CN112421878 A CN 112421878A CN 202011249628 A CN202011249628 A CN 202011249628A CN 112421878 A CN112421878 A CN 112421878A
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China
Prior art keywords
generator
fan
temperature
control system
clutch
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Granted
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CN202011249628.7A
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Chinese (zh)
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CN112421878B (en
Inventor
于涛
郭海波
邢立
吴毓海
傅连朋
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Weichai Power Co Ltd
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Weichai Power Co Ltd
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Publication of CN112421878A publication Critical patent/CN112421878A/en
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    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
    • H02K7/18—Structural association of electric generators with mechanical driving motors, e.g. with turbines
    • H02K7/1807—Rotary generators
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
    • F01P5/00—Pumping cooling-air or liquid coolants
    • F01P5/02—Pumping cooling-air; Arrangements of cooling-air pumps, e.g. fans or blowers
    • F01P5/04—Pump-driving arrangements
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
    • F01P5/00—Pumping cooling-air or liquid coolants
    • F01P5/02—Pumping cooling-air; Arrangements of cooling-air pumps, e.g. fans or blowers
    • F01P5/04—Pump-driving arrangements
    • F01P5/043—Pump reversing arrangements
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
    • F01P7/00—Controlling of coolant flow
    • F01P7/02—Controlling of coolant flow the coolant being cooling-air
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
    • F01P7/00—Controlling of coolant flow
    • F01P7/02—Controlling of coolant flow the coolant being cooling-air
    • F01P7/026—Thermostatic control
    • 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
    • F04D27/00—Control, e.g. regulation, of pumps, pumping installations or pumping systems specially adapted for elastic fluids
    • 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
    • F04D29/58—Cooling; Heating; Diminishing heat transfer
    • F04D29/5806—Cooling the drive system
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K5/00—Casings; Enclosures; Supports
    • H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
    • H02K5/10—Casings or enclosures characterised by the shape, form or construction thereof with arrangements for protection from ingress, e.g. water or fingers
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
    • H02K7/10—Structural association with clutches, brakes, gears, pulleys or mechanical starters
    • H02K7/1004—Structural association with clutches, brakes, gears, pulleys or mechanical starters with pulleys
    • H02K7/1008—Structural association with clutches, brakes, gears, pulleys or mechanical starters with pulleys structurally associated with the machine rotor
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
    • H02K7/14—Structural association with mechanical loads, e.g. with hand-held machine tools or fans
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K9/00—Arrangements for cooling or ventilating
    • H02K9/02—Arrangements for cooling or ventilating by ambient air flowing through the machine
    • H02K9/04—Arrangements for cooling or ventilating by ambient air flowing through the machine having means for generating a flow of cooling medium
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
    • H02P9/00—Arrangements for controlling electric generators for the purpose of obtaining a desired output
    • H02P9/06—Control effected upon clutch or other mechanical power transmission means and dependent upon electric output value of the generator
    • 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
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/70—Wind energy
    • Y02E10/72—Wind turbines with rotation axis in wind direction

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
  • Control Of Eletrric Generators (AREA)

Abstract

The invention provides a fan reversing control system, a fan reversing control method and fan reversing control equipment, which comprise a controller, a generator, an engine, a fan and an electromagnetic clutch, wherein one end of a rotating shaft of the electromagnetic clutch is connected with the generator, and the other end of the rotating shaft of the electromagnetic clutch is connected with the fan; the engine is connected with a clutch belt pulley arranged on the electromagnetic clutch, and when the temperature of the generator is lower than the preset temperature, the controller is used for controlling the electromagnetic clutch and the clutch belt pulley to be in an attraction state and controlling the engine to drive the generator and the fan to rotate so as to enable the fan to be in an air suction state; when the temperature of the generator is higher than the preset temperature, the controller is used for controlling the electromagnetic clutch and the clutch belt pulley to be in a separation state and controlling the generator to rotate reversely, so that the fan rotates reversely and is in a blowing state. The fan reversing control system, the fan reversing control method and the fan reversing control equipment are beneficial to timely removing foreign matters and impurities in the generator and achieving sufficient heat dissipation.

Description

Fan reversing control system, control method and equipment
Technical Field
The embodiment of the invention relates to the technical field of engines, in particular to a fan reversing control system, a fan reversing control method and fan reversing control equipment.
Background
The generator is a mechanical equipment that converts the energy of other forms into the electric energy, the wide application is in the industrial and agricultural field, the national defense field, in science and technology field and daily life, the generator is usually by the stator, the rotor, parts such as end cover and bearing constitute, the end cover of generator can play guard action and radiating action to internals, it is specific, when the generator matches on this type of mechanical equipment such as harvester and during normal operating, often have a large amount of straw pieces to get into generator inside and can't in time clear away, long-term accumulation can lead to the generator jamming, make the inside temperature of generator rise, and then influence engine life.
The rear end cover of the existing generator is provided with heat dissipation holes for reducing the internal temperature of the generator.
However, when the aperture of the existing heat dissipation hole is too small, the existing heat dissipation hole is easily blocked by splashed soil, so that insufficient heat dissipation is caused; on the other hand, when the aperture of the heat dissipation hole is too large, dust and impurities easily enter the generator, and the problems of generator clamping stagnation and insufficient heat dissipation are easily caused.
Disclosure of Invention
The invention provides a fan reversing control system, a fan reversing control method and fan reversing control equipment, which are beneficial to timely removing foreign matters and impurities in a generator and realizing sufficient heat dissipation, solve the problems that the generator is easy to block and the heat dissipation is insufficient due to the fact that the impurities enter the generator in the prior art, and ensure the working efficiency and the service life of the generator.
In a first aspect, the present invention provides a fan reversing control system, including: the system comprises a controller, a generator, an engine, a fan and an electromagnetic clutch, wherein the generator, the engine and the electromagnetic clutch are all connected with the controller;
one end of a rotating shaft of the electromagnetic clutch is connected with the generator, and the other end of the rotating shaft of the electromagnetic clutch is connected with the fan; the engine is connected with a clutch belt pulley arranged on the electromagnetic clutch through a belt, and the clutch belt pulley is connected with the rotating shaft in a rotating mode.
When the temperature of the generator is lower than the preset temperature, the controller is used for controlling the electromagnetic clutch and the clutch belt pulley to be in an attraction state and controlling the engine to drive the generator and the fan to rotate so as to enable the fan to be in an air suction state;
when the temperature of the generator is higher than the preset temperature, the controller is used for controlling the electromagnetic clutch and the clutch belt pulley to be in a separation state and controlling the generator to rotate reversely, so that the fan rotates reversely and is in a blowing state.
In an optional implementation manner, the method further includes: a temperature sensor located inside the generator;
the temperature sensor is used for detecting the temperature inside the generator, so that the controller judges whether the temperature inside the generator is higher than the preset temperature according to the temperature detected by the temperature sensor.
In an optional implementation manner, the method further includes: a battery connected to the engine, the generator, and the controller;
when the temperature of the generator is lower than a preset temperature, the generator is used for charging the storage battery;
when the temperature of the generator is higher than the preset temperature, the storage battery is used for supplying power to the generator, so that the generator drives the fan to rotate reversely.
In an optional implementation manner, a crankshaft pulley is arranged on a crankshaft of the engine, and the crankshaft pulley is connected with the clutch pulley through a belt.
In an optional implementation manner, a one-way switch is arranged on each of the generator and the engine, and the one-way switch is connected with the storage battery.
In a second aspect, the present invention provides a control method for a fan reversing control system, the control method comprising:
judging whether the temperature of a generator in the fan reversing control system is higher than a preset temperature or not;
when the temperature of a generator in the fan reversing control system is lower than or equal to a preset temperature, a controller in the fan reversing control system controls an electromagnetic clutch and a clutch belt pulley in the fan reversing control system to be in an attraction state, and controls an engine in the fan reversing control system to drive the generator and a fan to rotate so as to enable the fan to be in an air suction state;
when the temperature of the generator is higher than the preset temperature, the controller controls the electromagnetic clutch and the clutch belt pulley to be in a separation state and controls the generator to rotate reversely, so that the fan rotates reversely and is in a blowing state.
In an optional implementation manner, before determining whether the temperature of the generator in the fan reversing control system is higher than a preset temperature, the method further includes:
obtaining an internal temperature of the generator.
In an optional implementation manner, after the controller controls the electromagnetic clutch to be in a disengaged state from the clutch pulley and controls the generator to rotate in a reverse direction, so that the fan rotates in a reverse direction and is in a blowing state, the method further includes:
judging whether the temperature of the generator is lower than the preset temperature or not, and detecting whether impurities exist in the generator or not;
and if impurities exist in the generator, the controller controls the generator and the engine to stop running.
In an optional implementation manner, the method further includes: when the temperature of a generator in the fan reversing control system is lower than or equal to a preset temperature, the controller controls a relay in the fan reversing control system to be disconnected so that the clutch and the clutch belt pulley are in a suction state;
when the temperature of the generator is higher than the preset temperature, the controller controls a relay in the fan reversing control system to be closed, so that the clutch and the clutch belt pulley are in a separation state.
In a third aspect, the present invention provides an apparatus comprising a fan reversal control system as described in any one of the preceding claims.
The invention provides a fan reversing control system which comprises a controller, a generator, an engine, a fan and an electromagnetic clutch, wherein the generator, the engine and the electromagnetic clutch are all connected with the controller;
one end of a rotating shaft of the electromagnetic clutch is connected with the generator, and the other end of the rotating shaft of the electromagnetic clutch is connected with the fan;
the engine is connected with a clutch belt pulley arranged on the electromagnetic clutch through a belt, and the clutch belt pulley is rotationally connected with the rotating shaft;
when the temperature of the generator is lower than the preset temperature, the controller is used for controlling the electromagnetic clutch and the clutch belt pulley to be in an attraction state and controlling the engine to drive the generator and the fan to rotate so as to enable the fan to be in an air suction state;
when the temperature of the generator is higher than the preset temperature, the controller is used for controlling the electromagnetic clutch and the clutch belt pulley to be in a separation state and controlling the generator to rotate reversely, so that the fan rotates reversely and is in a blowing state.
Compared with the prior art that the rear end cover of the generator is provided with the heat dissipation hole, the generator can be fully dissipated, on one hand, when the hole diameter of the heat dissipation hole is too small, the heat dissipation hole is easily blocked by splashed soil, and insufficient heat dissipation is caused; on the other hand sets up when too big when the louvre aperture, dust and impurity easily enter into in the generator, cause the generator jamming easily, the insufficient problem of heat dissipation, the fan switching-over control system that provides in this application is favorable to in time cleaing away the foreign matter impurity in the generator and realizes fully dispelling the heat, has solved inside impurity gets into the generator in the current, and the volume causes the generator jamming, the insufficient problem dispels the heat to be favorable to guaranteeing the work efficiency and the life of generator.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive exercise.
Fig. 1 is a schematic structural diagram of a fan reversing control system according to an embodiment of the present invention;
fig. 2 is another schematic structural diagram of a fan reversing control system according to an embodiment of the present invention;
fig. 3 is a schematic flow chart of a fan reversing control method according to an embodiment of the present invention;
fig. 4 is another schematic flow chart of a fan reversing control method according to an embodiment of the present invention.
Description of reference numerals:
10-a generator;
20-an engine;
30-a fan;
40-an electromagnetic clutch;
41-a rotating shaft;
42-a clutch pulley;
50-a controller;
and 60-storage battery.
Detailed Description
The current generator is used in agricultural machine's such as harvester working process, often there is a large amount of straw pieces to get into the inside unable in time of generator and clears away, long-term accumulation can lead to the generator jamming for the inside temperature of generator risees, and then influence engine life, consequently, inside impurity gets into the generator in order to solve current, cause the generator jamming easily, the insufficient problem dispels the heat, need fully dispel the heat and clear away the foreign matter impurity in the generator to the generator usually.
In some implementation manners, the rear end cover of the generator is provided with the heat dissipation hole to realize sufficient heat dissipation of the generator, however, when the hole diameter of the heat dissipation hole is too small, the heat dissipation hole is easily blocked by splashed soil to cause insufficient heat dissipation; on the other hand, when the aperture of the heat dissipation hole is too large, dust and impurities easily enter the generator, and the generator is easily stuck and the heat dissipation is insufficient.
Therefore, in order to solve the above technical problems, the present invention provides a fan reversing control system, a control method and an apparatus, wherein the fan reversing control system comprises a controller, a generator, an engine, a fan and an electromagnetic clutch, and the generator, the engine and the electromagnetic clutch are all connected to the controller; one end of a rotating shaft of the electromagnetic clutch is connected with the generator, and the other end of the rotating shaft of the electromagnetic clutch is connected with the fan; the engine is connected with a clutch belt pulley arranged on the electromagnetic clutch through a belt, and the clutch belt pulley is rotationally connected with the rotating shaft.
When the temperature of the generator is lower than the preset temperature, the controller is used for controlling the electromagnetic clutch and the clutch belt pulley to be in an attraction state and controlling the engine to drive the generator and the fan to rotate so as to enable the fan to be in an air suction state; when the temperature of the generator is higher than the preset temperature, the controller is used for controlling the electromagnetic clutch and the clutch belt pulley to be in a separation state and controlling the generator to rotate reversely, so that the fan rotates reversely and is in a blowing state.
Foreign matter impurity in the generator can not only in time be clear away like this and the realization is fully dispelled the heat, has solved inside impurity gets into the generator in the current, and the volume causes generator jamming, the insufficient problem of heat dissipation, is favorable to guaranteeing the work efficiency and the life of generator moreover.
Therefore, in order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example one
Fig. 1 is a schematic structural diagram of a fan reversing control system according to an embodiment of the present invention, fig. 2 is a schematic structural diagram of another fan reversing control system according to an embodiment of the present invention, fig. 3 is a schematic flow diagram of a fan reversing control method according to an embodiment of the present invention, and fig. 4 is a schematic flow diagram of another fan reversing control method according to an embodiment of the present invention.
The present embodiment provides a fan reversing control system, as shown in fig. 1, the fan reversing control system may include a controller 50, a generator 10, an engine 20, a fan 30, and an electromagnetic clutch 40, wherein the generator 10, the engine 20, and the electromagnetic clutch 40 are all connected to the controller 50, and the engine 20 may be an electric motor or a diesel engine.
One end of a rotating shaft of the electromagnetic clutch 40 is connected to the generator 10, the other end of the rotating shaft 41 of the electromagnetic clutch 40 is connected to the fan 30, the engine 20 is connected to a clutch pulley 42 provided on the electromagnetic clutch 40 by a belt, and the clutch pulley 42 is rotatably connected to the rotating shaft 41.
Thus, when the generator 10 is in a normal operating state, the temperature of the generator 10 is lower than the preset temperature, and at this time, the controller 50 is configured to control the electromagnetic clutch 40 and the clutch pulley 42 to be in an engaged state (see fig. 1 in particular), and control the engine 20 to drive the generator 10 and the fan 30 to rotate, so that the fan 30 is in an air suction state.
As shown in fig. 1, when the temperature inside the generator 10 is lower than the preset temperature, the generator 10 and the fan 30 are in a connected state and rotate in a forward direction synchronously, and the generator 10 rotates clockwise, so that the fan 30 is in an air suction state, that is, an air suction channel is formed along the arrow direction in fig. 1, wherein the air suction state is to ensure that the hot air sucked away by the fan 30 is discharged outside the generator 10 and is not sucked into the heat sink again.
When the generator 10 continues to work, impurities or blockage of heat dissipation holes are generated inside the generator 10, which may cause the temperature inside the generator 10 to gradually rise, and when the temperature of the generator 10 is higher than a preset temperature, the controller 50 is configured to control the electromagnetic clutch 40 and the clutch pulley 42 to be in a separated state (specifically, see fig. 2), and control the generator 10 to rotate in a reverse direction, so that the fan 30 rotates in a reverse direction and is in a blowing state.
Wherein, as shown in fig. 2, when the temperature in the generator 10 is higher than the preset temperature, the controller 50 controls the generator 10 to rotate reversely, the generator 10 and the fan 30 are in a connection state and rotate reversely synchronously, the generator 10 rotates counterclockwise, so that the fan 30 is in a blowing state, that is, a blowing passage is formed along the arrow direction in fig. 2, wherein the blowing state is to ensure that the air blown into the generator 10 is cold air sucked into the generator 10, and then impurities in the generator 10 and mud on the blocking rear end cover are blown off, and the interior of the generator 10 is cooled.
In this embodiment, the preset temperature of the generator 10 during operation is specified by the controller 50, wherein the preset temperature value is a calibration value set during development of the generator 10, and is specifically set under different operating conditions according to different operating conditions of the generator 10, specifically, when the load of the generator 10 is different, the preset temperature value set by the controller is also different, therefore, in this embodiment, the preset temperature of the generator 10 is not specifically limited, the preset temperature value can be adjusted according to the performance requirement of the generator 10, and as long as the fan reversing control system provided in this embodiment is used for realizing internal cooling of the generator 10, the fan reversing control system can achieve the protection range of this application.
The fan reversing control system provided in the embodiment specifically works as follows: when the diesel generator 10 normally works, the temperature inside the generator 10 continuously rises along with the continuous increase of the load of the generator 10, the change of the temperature can be fed back to the controller 50, the controller 50 compares the preset temperature parameter with the generator 10, when the temperature is higher than the preset temperature value, the controller 50 sends a signal to electrify the coil inside the electromagnetic clutch 40, the electromagnetic clutch 40 and the clutch belt pulley 42 are controlled to be in a separation state, at this time, the generator 10 reversely rotates and drives the fan 30 to reversely rotate, the ventilation quantity of the fan 30 is increased, cold air is continuously blown into the radiator of the generator 10, and the temperature inside the generator 10 decreases along with the gradual increase of the cold air.
When the temperature in the generator 10 is decreased for a period of time, the decreased temperature value is still fed back to the controller 50, the controller 50 compares the decreased temperature value with the preset temperature parameter of the generator 10, if the decreased temperature value is lower than the preset temperature parameter, the controller 50 sends a signal to power off the coil inside the electromagnetic clutch 40, the electromagnetic clutch 40 and the clutch belt pulley 42 are controlled to be in an attraction state, and at this time, the generator 10 drives the fan 30 to rotate in the forward direction, so that the fan 30 is in an air suction state.
Therefore, the present invention provides a fan reversing control system, which comprises a controller 50, a generator 10, an engine 20, a fan 30 and an electromagnetic clutch 40, wherein the generator 10, the engine 20 and the electromagnetic clutch 40 are all connected with the controller 50; one end of a rotating shaft 41 of the electromagnetic clutch 40 is connected with the generator 10, and the other end of the rotating shaft 41 of the electromagnetic clutch 40 is connected with the fan 30; the engine 20 is connected to a clutch pulley 42 provided on the electromagnetic clutch 40 by a belt, and the clutch pulley 42 is rotatably connected to the rotary shaft 41.
When the temperature of the generator 10 is lower than the preset temperature, the controller 50 is used for controlling the electromagnetic clutch 40 and the clutch pulley 42 to be in an attraction state and controlling the engine to drive the generator 10 and the fan 30 to rotate, so that the fan 30 is in an air suction state; when the temperature of the generator 10 is higher than the preset temperature, the controller 50 is configured to control the electromagnetic clutch 40 and the clutch pulley 42 to be in a disengaged state and control the generator 10 to rotate in reverse, so that the fan 30 rotates in reverse and is in a blowing state.
Compare in current, can not only in time clear away the foreign matter impurity in the generator 10 and realize fully dispelling the heat, solved present well impurity entering generator 10 inside, the volume causes generator 10 jamming, the insufficient problem of heat dissipation, is favorable to guaranteeing generator 10's work efficiency and life moreover.
In a possible implementation, a temperature sensor may be further included, the temperature sensor being located inside the generator 10, the temperature sensor being connected to the controller 50.
The temperature sensor is configured to detect a temperature inside the generator 10, so that the controller 50 determines whether the temperature inside the generator 10 is higher than a preset temperature according to the temperature detected by the temperature sensor.
In this embodiment, the controller 50 determines whether the internal temperature of the generator 10 is higher than a preset temperature value by receiving a signal sent by the temperature sensor, when the internal temperature is higher than the preset temperature value, the temperature sensor transmits a temperature signal to the controller 50, the controller 50 sends an alarm signal after receiving the temperature signal, and when the temperature gradually rises and exceeds an upper alarm limit, the generator 10 stops working and stops parking for impurity removal processing.
In a possible implementation manner, as shown in fig. 4, the method may further include: a battery 60, the battery 60 is connected with the engine 20, the generator 10 and the controller 50, when the temperature of the generator 10 is lower than the preset temperature, the generator 10 and the fan 30 are in a connection state and synchronously rotate in the forward direction, at this time, as shown in fig. 4, a one-way switch inside the generator 10 throws (i), and the generator 10 is used for charging the battery 60 to enable the fan 30 to be in an air suction state; when the temperature of the generator 10 is higher than the preset temperature, the generator 10 and the fan 30 are in a connection state and synchronously rotate reversely, at this time, a one-way switch inside the generator 10 is thrown, and the storage battery 60 is used for supplying power to the engine 20, so that the engine 20 drives the fan 30 to rotate reversely.
In one possible implementation, a crankshaft pulley is provided on the crankshaft of the engine 20, and the crankshaft pulley is connected to the clutch pulley 42 through a belt, wherein the crankshaft pulley drives the clutch pulley 42 through the belt, and the clutch pulley 42 drives the clutch to rotate.
In one possible implementation, a one-way switch is provided on both the generator 10 and the engine 20, and the one-way switch is connected to the battery 60.
As shown in fig. 4, when the temperature inside the generator 10 is lower than the preset temperature, the electromagnetic clutch 40 and the clutch pulley 42 are in the engagement state, the one-way switch inside the generator 10 throws (i), the generator 10 rotates clockwise, and the battery 60 is charged.
When the temperature in the generator 10 is higher than the preset temperature, the electromagnetic clutch 40 and the clutch pulley 42 are in a separated state, the one-way switch inside the generator 10 is thrown, the generator 10 rotates counterclockwise, and the storage battery 60 supplies power to the engine 20.
Example two
The present embodiment provides a control method of a fan reversing control system, where the fan reversing control system is any one of the fan reversing control systems described above, and the control method includes the following steps:
s101, judging whether the temperature of the generator 10 in the fan reversing control system is higher than a preset temperature or not.
In this embodiment, it is specifically determined whether the internal temperature of the generator 10 is higher than a preset temperature by providing a temperature sensor.
S102, when the temperature of the generator 10 in the fan reversing control system is lower than the preset temperature, the controller 50 in the fan reversing control system controls the electromagnetic clutch 40 and the clutch pulley 42 in the fan reversing control system to be in a suction state, and controls the engine in the fan reversing control system to drive the generator 10 and the fan 30 to rotate, so that the fan 30 is in a suction state.
And S103, when the temperature of the generator 10 is higher than the preset temperature, the controller 50 controls the electromagnetic clutch 40 and the clutch pulley 42 to be in a separation state and controls the generator 10 to rotate reversely, so that the fan 30 rotates reversely and is in a blowing state.
It should be noted that when the temperature of the generator 10 is equal to the preset temperature, in a possible implementation manner, the controller 50 in the fan reversing control system may control the electromagnetic clutch 40 and the clutch pulley 42 in the fan reversing control system to be in the attraction state, and control the engine in the fan reversing control system to drive the generator 10 and the fan 30 to rotate, so as to make the fan 30 in the suction state.
Of course, in another possible implementation manner, the controller 50 may control the electromagnetic clutch 40 and the clutch pulley 42 to be in a disengaged state and control the generator 10 to rotate in a reverse direction, so that the fan 30 rotates in a reverse direction and is in a blowing state.
It should be noted that, in this embodiment, the sequence of step S102 and step S103 is not further limited.
The control method of the fan reversing control system is beneficial to timely removing foreign matters and impurities in the generator 10 and achieving sufficient heat dissipation, solves the problems that the impurities enter the generator 10 in the prior art, the generator 10 is easily blocked and the heat dissipation is insufficient, and ensures the working efficiency and the service life of the generator 10.
In a possible implementation manner, as shown in fig. 3, before determining whether the temperature of the generator in the fan commutation control system is higher than a preset temperature, the method further includes the following steps:
s1011: acquiring the internal temperature of the generator 10;
s1012: the temperature sensor feeds back the temperature to the controller 50.
In one possible implementation manner, after the controller 50 controls the electromagnetic clutch 40 and the clutch pulley 42 to be in the disengaged state and controls the generator 10 to rotate reversely, so that the fan 30 rotates reversely and is in the blowing state, the method further includes the following steps:
step a), when judging that the temperature of the generator 10 is lower than the preset temperature, detecting whether impurities exist in the generator 10; if there are impurities in the generator 10, the controller 50 controls the generator 10 and the engine 20 to stop operating.
When the temperature of the generator 10 is lower than the preset temperature, that is, when the temperature of the generator 10 is reduced to the normal temperature state, if there are residual impurities in the generator 10, the generator 10 and the engine 20 are manually controlled to stop running, and the residual impurities are cleaned until the residual impurities are completely removed.
In one possible implementation manner, the method further includes: when the temperature of the generator 10 in the fan 30 reversing control system is lower than or equal to the preset temperature, the controller 50 controls the relay in the fan 30 reversing control system to be disconnected, so that the clutch and the clutch pulley 42 are in a suction state, and the engine is controlled to drive the generator 10 and the fan 30 to rotate.
When the temperature of the generator 10 is higher than the preset temperature, the controller 50 controls the relay in the fan 30 commutation control system to be closed, so that the clutch and the clutch pulley 42 are in a separated state and the generator 10 is controlled to rotate reversely.
EXAMPLE III
The third embodiment of the invention also provides equipment which comprises the fan reversing control system of the third embodiment.
The equipment provided by the embodiment can be a diesel engine or a diesel generator set.
The fan reversing control system in this embodiment has the same structure as the fan reversing control system provided in the first embodiment, and can bring about the same or similar technical effects, and details are not repeated here, and specific reference may be made to the description of the above embodiment.
In the description of the present invention, it is to be understood that the terms "top," "bottom," "upper," "lower" (if any), and the like, as used herein, refer to an orientation or positional relationship as shown in the drawings, which are used for convenience in describing the present invention and to simplify description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the present invention.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.
The terms "first" and "second" in the description and claims of the present application and the description of the above-described figures are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the application described herein are, for example, capable of operation in sequences other than those illustrated or otherwise described herein.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.

Claims (10)

1. A fan reversal control system, comprising: the system comprises a controller, a generator, an engine, a fan and an electromagnetic clutch, wherein the generator, the engine and the electromagnetic clutch are all connected with the controller;
one end of a rotating shaft of the electromagnetic clutch is connected with the generator, and the other end of the rotating shaft of the electromagnetic clutch is connected with the fan;
the engine is connected with a clutch belt pulley arranged on the electromagnetic clutch through a belt, and the clutch belt pulley is rotationally connected with the rotating shaft;
when the temperature of the generator is lower than the preset temperature, the controller is used for controlling the electromagnetic clutch and the clutch belt pulley to be in an attraction state and controlling the engine to drive the generator and the fan to rotate so as to enable the fan to be in an air suction state;
when the temperature of the generator is higher than the preset temperature, the controller is used for controlling the electromagnetic clutch and the clutch belt pulley to be in a separation state and controlling the generator to rotate reversely, so that the fan rotates reversely and is in a blowing state.
2. The fan reversal control system of claim 1, further comprising: a temperature sensor located inside the generator;
the temperature sensor is used for detecting the temperature inside the generator, so that the controller judges whether the temperature inside the generator is higher than the preset temperature according to the temperature detected by the temperature sensor.
3. The fan reversal control system of claim 1, further comprising: a battery connected to the engine, the generator, and the controller;
when the temperature of the generator is lower than a preset temperature, the generator is used for charging the storage battery;
when the temperature of the generator is higher than the preset temperature, the storage battery is used for supplying power to the generator, so that the generator drives the fan to rotate reversely.
4. The fan reversal control system according to any one of claims 1 to 3, wherein a crank pulley is provided on a crankshaft of the engine, and the crank pulley and the clutch pulley are connected by a belt.
5. The fan commutation control system of claim 3, wherein a unidirectional switch is provided on each of the generator and the engine, and wherein the unidirectional switch is connected to the battery.
6. A control method of a fan reversing control system according to any one of claims 1 to 5, the control method comprising:
judging whether the temperature of a generator in the fan reversing control system is higher than a preset temperature or not;
when the temperature of a generator in the fan reversing control system is lower than or equal to a preset temperature, a controller in the fan reversing control system controls an electromagnetic clutch and a clutch belt pulley in the fan reversing control system to be in an attraction state, and controls an engine in the fan reversing control system to drive the generator and a fan to rotate so as to enable the fan to be in an air suction state;
when the temperature of the generator is higher than the preset temperature, the controller controls the electromagnetic clutch and the clutch belt pulley to be in a separation state and controls the generator to rotate reversely, so that the fan rotates reversely and is in a blowing state.
7. The control method of claim 6, wherein before determining whether the temperature of the generator in the fan commutation control system is higher than a preset temperature, further comprising:
obtaining an internal temperature of the generator.
8. The control method according to claim 7, wherein the controller, after controlling the electromagnetic clutch and the clutch pulley to be in a disengaged state and controlling the generator to rotate in reverse so that the fan rotates in reverse and is in a blowing state, further comprises:
judging whether the temperature of the generator is lower than the preset temperature or not, and detecting whether impurities exist in the generator or not;
and if impurities exist in the generator, the controller controls the generator and the engine to stop running.
9. The control method according to claim 6, characterized by further comprising: when the temperature of a generator in the fan reversing control system is lower than or equal to a preset temperature, the controller controls a relay in the fan reversing control system to be disconnected so that the clutch and the clutch belt pulley are in a suction state;
when the temperature of the generator is higher than the preset temperature, the controller controls a relay in the fan reversing control system to be closed, so that the clutch and the clutch belt pulley are in a separation state.
10. An apparatus comprising the fan reversal control system of any of claims 1-5.
CN202011249628.7A 2020-11-10 2020-11-10 Fan reversing control system, control method and equipment Active CN112421878B (en)

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CN108150443A (en) * 2017-12-25 2018-06-12 潍柴动力股份有限公司 Rerersing fan, engine and reverse control method
CN108194187A (en) * 2018-01-27 2018-06-22 无锡法尔胜悦能动力有限公司 A kind of diesel generating set fan speed adjusting device and speed regulating method
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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2513818Y (en) * 2001-11-30 2002-10-02 财团法人工业技术研究院 Parallel double power unit composite power system
JP2004162542A (en) * 2002-11-11 2004-06-10 Hino Motors Ltd Control system of vehicular fan clutch
US20110272951A1 (en) * 2008-10-09 2011-11-10 Harold Marchand Wind powered apparatus having counter rotating blades
JP2010115007A (en) * 2008-11-06 2010-05-20 Nec Corp Power supply apparatus and power management method
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