CN113530658B - Wireless harness electric control silicone oil clutch - Google Patents
Wireless harness electric control silicone oil clutch Download PDFInfo
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- CN113530658B CN113530658B CN202110776848.3A CN202110776848A CN113530658B CN 113530658 B CN113530658 B CN 113530658B CN 202110776848 A CN202110776848 A CN 202110776848A CN 113530658 B CN113530658 B CN 113530658B
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- 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
- F01P7/04—Controlling of coolant flow the coolant being cooling-air by varying pump speed, e.g. by changing pump-drive gear ratio
- F01P7/042—Controlling of coolant flow the coolant being cooling-air by varying pump speed, e.g. by changing pump-drive gear ratio using fluid couplings
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D35/00—Fluid clutches in which the clutching is predominantly obtained by fluid adhesion
Abstract
The invention relates to a wireless beam electric control silicone oil clutch, which comprises a flange shaft, a fixed platform, a wireless solenoid and a controller, wherein the controller can receive a wireless communication signal of an engine system on one hand and send a signal of the required rotating speed of a fan to the wireless solenoid for controlling the engagement or the separation of the silicone oil air clutch so that the actual rotating speed of the silicone oil fan is continuously close to the required rotating speed; on the other hand, the real-time rotating speed of the silicone oil fan output by the wireless solenoid can be fed back to the engine system through wireless communication to form closed-loop control, the required rotating speed of the silicone oil fan is continuously corrected, and finally the real-time rotating speed of the silicone oil fan is consistent with the required rotating speed of the fan. The invention avoids the design of wiring harnesses, avoids the design and management cost of different solenoids required in different engine platforms, realizes the platformization and standardization of the design of the electric control solenoid, and greatly improves the applicability of the solenoid.
Description
Technical Field
The invention relates to a commercial vehicle engine cooling system, in particular to a wireless beam electric control silicone oil clutch.
Background
The heat dissipation of an engine system of a commercial vehicle platform is completed through a cooling fan, the cooling fan is upgraded from an early direct-connected fan incapable of regulating speed to an electromagnetic fan with adjustable limited rotating speed gear and then to a silicon oil fan with stepless speed change, the cooling fan continuously regulates speed more and more accurately, and the response time is developed more and more short. The silicone oil fan on the existing market comprises a temperature control and electric control silicone oil fan, wherein the electric control silicone oil fan becomes the first choice of a commercial vehicle platform due to accurate control and quick response.
In the driving process of the commercial vehicle, a whole vehicle control system can obtain the required rotating speed of the electric control silicon oil fan according to parameters such as the water temperature in an engine and the like and by combining a corresponding algorithm, the required rotating speed is transmitted to the fan through the electric control solenoid, meanwhile, the actual rotating speed of the fan can also be transmitted to the control system through the electric control solenoid, closed-loop control is achieved, the electric control solenoid is a core electric component of the silicon oil fan and is generally connected with the engine through a wiring harness, various problems can be brought to the after-sale market of the fan through wiring harness connection, the service life of the fan is reduced slightly, and the whole vehicle is in fault or abnormal parking is caused in serious cases. The main causes of the failure or abnormal parking of the whole vehicle are the following:
1. when the electric control silicone oil fan works, the wiring harness connector can be loosened from the slot along with continuous vibration of the engine, so that the wiring harness connector is disconnected with the engine; meanwhile, the wiring harness can gradually separate from the original position and interfere with the fan blades, so that the wiring harness is cut;
2. the unreasonable arrangement of the connecting wire harness causes part of the wire harness to pass through a high-temperature area on the surface of the engine, and when the electric control silicone oil fan works, the outer layer protective rubber of the part of the wire harness is likely to crack and fall off due to continuous heating, so that the function of the solenoid is affected;
3. mainstream silicon oil fan is the formula design of induced drafting mostly, and when the fan during operation, can adsorb the small mass object around the fan automatically, and because of the fan is placed in engine compartment internal, external condition is also more abominable, strikes the pencil when foreign matter such as lithangite or little insect often takes place to lead to the pencil to damage.
Moreover, at present mainstream commercial car and engine platform variety are many, and when automatically controlled silicon oil clutch was connected with the engine, the requirement of adaptation pencil was also different: the connector type, the wiring harness appearance, the wiring harness fixing mode and the wiring harness length are different, so that the variety of the required electric control solenoid is more, the cost of producing and assembling the solenoids is higher, the management cost for preventing the solenoid confusion with other engine platforms is also higher, and the cost of the electric control silicone oil fan is increased undoubtedly.
Disclosure of Invention
In order to solve the problems, the invention provides the wireless beam electric control silicone oil clutch, which realizes the signal transmission between the electric control solenoid and an engine system through wireless communication, avoids the design of a wire harness, and avoids the design and management costs of the different solenoids required in different engine platforms.
The technical scheme adopted by the invention is as follows: the utility model provides an automatically controlled silicon oil clutch of wireless bundle, includes the flange axle with engine main shaft fixed connection, its characterized in that: the controller is arranged on the fixed platform, can receive wireless communication signals of an engine system and sends signals of required rotating speed of the fan to the wireless solenoid for controlling the engagement or the separation of the silicone oil wind clutch, so that the actual rotating speed of the silicone oil fan is continuously close to the required rotating speed; on the other hand, the real-time rotating speed of the silicone oil fan output by the wireless solenoid can be fed back to the engine system through wireless communication to form closed-loop control, the required rotating speed of the silicone oil fan is continuously corrected, and finally the real-time rotating speed of the silicone oil fan is consistent with the required rotating speed of the fan.
Preferably, an MCU chip, a wireless communication module, a power module, a PWM driving module and a voltage-stabilizing power supply module are arranged in the controller, and the MCU chip acquires and filters actual rotating speed signals of the silicone oil fan output by the wireless solenoid; the MCU chip performs data interaction with an engine system by means of the wireless communication module, so that on one hand, the required rotating speed of the silicone oil fan is obtained, and meanwhile, the actual rotating speed of the silicone oil fan is fed back in real time; when the electric control silicone oil clutch works, the MCU chip transmits a driving signal to the PWM driving module and the voltage-stabilizing power supply module for supplying power to the wireless solenoid.
Furthermore, the wireless communication module is a signal transfer module, establishes data interaction between the MCU chip and the engine system, and includes a bi-pass signal transmitting and receiving device on hardware, and the interactive signal can cover a range within 3 m.
Furthermore, the power module is a voltage-stabilizing adjusting module, and can stably supply the direct current supplied by the storage battery to the MCU chip, so that the transient high voltage output by the storage battery is prevented from puncturing the MCU chip, and the overall service life of the controller is prolonged.
Furthermore, the PWM driving module and the voltage-stabilizing power supply module are both power supply modules of a wireless solenoid, the PWM driving module provides PWM signals with variable duty ratio and frequency, magnetic fields with different strengths are formed inside the silicone oil clutch under the control of the PWM signals, and the working state of the silicone oil clutch can also change between separation and full engagement.
Further, be equipped with filtering anti-disturbance module in the controller, filtering anti-disturbance module has two effects: the communication signal is filtered, clutter in the signal is removed, the signal transmission between an engine system and a silicone oil clutch is more accurate, and meanwhile, the signal interaction speed is higher; and the second shielding can shield external interference signals and improve the anti-electromagnetic interference capability of the silicone oil clutch.
Preferably, an alternating current generator, a voltage regulator and a storage battery are arranged on the fixed platform, a flange shaft is provided with a flange shaft gear, a generator gear meshed with the flange shaft gear is arranged on a rotor of the alternating current generator, the flange shaft rotates and drives a rotor part of the alternating current generator to move through meshing transmission of the flange shaft gear and the generator gear, the alternating current generator outputs three-phase alternating current to the voltage regulator, and the voltage regulator processes the alternating current output by the alternating current generator to convert the alternating current into direct current for charging the storage battery; if the storage battery is fully charged, the voltage regulator can play a role in overcharge protection and does not continue to be charged.
Furthermore, a rectifying module, a filtering module, a storage battery charging and discharging detection control module, a voltage control module and a fault indication and short circuit protection module are arranged in the voltage regulator, and the rectifying module can convert alternating current into direct current with unidirectional pulsation by means of unidirectional conductivity of a semiconductor diode; the filtering module is used for removing ripple wave components in the direct current; the storage battery charging and discharging detection control module is used for detecting the charging and discharging states of the storage battery and managing the charging and discharging states; the voltage control module is used for controlling the input voltage of the storage battery, once the input voltage exceeds the rated voltage of the storage battery, the control module can carry out voltage limitation to ensure that the input voltage of the storage battery does not exceed the rated voltage so as to prolong the service life of the storage battery; the fault indication and short-circuit protection module is used for displaying the state of the storage battery: when the battery normally works, the green light is lighted to the pilot lamp, when appearing unusual heavy current, power supply loop can be cut off at once to protection battery, the red light is lighted to the pilot lamp simultaneously, reminds detection personnel to pay attention to.
Furthermore, the rectifier module adopts a bridge rectifier circuit consisting of four diodes.
Further, the fixed platform is fixedly connected with the engine outer shell through a metal support.
The beneficial effects obtained by the invention are as follows:
1. on one hand, the controller receives a control signal of an engine system, controls the working state of the silicone oil fan, and realizes the switching between the meshing state and the separating state of the fan; on the other hand, the actual rotating speed of the fan can be fed back to the engine system to realize closed-loop control, and the information exchange is realized by a wireless communication module in the controller; the design of a wire harness is avoided, the design and management cost of different solenoids required in different engine platforms is avoided, the platformization and standardization of the design of the electric control solenoid are realized, the applicability of the solenoid is greatly improved, and the production cost of the electric control silicone oil clutch is reduced;
2. when the silicone oil clutch is assembled with the engine, wiring on the engine is not needed, and parts for fixing a wiring harness are not needed, so that the design cost of the engine is reduced, and the assembly process between the electronic control silicone oil clutch and the engine is simplified;
3. at present, the energy consumption of the electric control silicone oil fan mainly comes from two parts: the first part is mechanical energy consumed by the rotation of an engine spindle to drive a silicone oil fan to work, and the second part is electric energy required by the electric control solenoid; the silicone oil clutch can drive the generator to supply power to the electric control solenoid by means of mechanical energy generated by the rotation of the flange shaft driven by the main shaft of the engine without external power supply, so that the electric energy consumption of a second part is not needed, and the silicone oil clutch is lower than the conventional electric control silicone oil fan in energy consumption, is lower in carbon and environment-friendly, and meets the requirements of energy conservation and emission reduction of the national six countries;
4. the invention is provided with a voltage regulator for converting alternating current into direct current, and covers the functions of rectification, filtering and overcharge protection: firstly, alternating current is output by the alternating current generator and cannot be directly input into the storage battery, so that rectification is needed to convert the alternating current into direct current; secondly, the direct current is rectified into pulsating direct current, and because the direct current contains larger alternating current ripple wave components, if the direct current is directly introduced into a storage battery, the service life of the storage battery can be reduced, and a filter circuit can filter the ripple wave components to smooth the voltage waveform; if the charging power exceeds the safety threshold value of the storage battery, the overcharge protection function can be automatically started, the current is clamped in a safety range, and the storage battery is protected. (ii) a
5. The fixed platform is connected with the whole vehicle through the metal bracket, so that the fixed platform is more stable and durable compared with the wire harness connection, cannot be influenced by engine vibration, and cannot cause the problems of connector falling, interference with fan blades and the like; meanwhile, the problem that the traditional wire harness is damaged by heating or is impacted by foreign matters can be avoided, the after-sale compensation rate of the electric control silicone oil clutch can be effectively reduced, and the market competitiveness of the electric control silicone oil clutch is improved.
Drawings
FIG. 1 is a schematic view of the structure of the present invention;
FIG. 2 is a diagram of internal circuitry of the voltage regulator;
FIG. 3 is a circuit diagram of the controller;
FIGS. 4-5 are schematic engine connections;
reference numerals: 1.1, a flange shaft; 1.2, an alternator; 1.3, a voltage regulator; 1.4, a storage battery; 1.5, a controller; 1.6, wireless solenoid; 1.7, a front/rear cover and a driving disc; 1.8, plastic fan blades;
2.1, a rectification module; 2.2, a filtering module; 2.3, a storage battery charging and discharging detection control module; 2.4, a voltage control module; 2.5, a fault indication and short-circuit protection module;
3.1, MCU chip; 3.2, a wireless communication module; 3.3, a power supply module; 3.4, a PWM driving module; 3.5, a voltage-stabilizing power supply module; 3.6, a filtering immunity module; 4.1, fixing the platform;
5.1, a flange shaft gear; 5.2, a generator gear; 5.3, metal support.
Detailed Description
The invention will be further described with reference to the following drawings and specific embodiments.
As shown in fig. 1-5, the invention relates to a wireless beam electronic control silicone oil clutch, which comprises a flange shaft 1.1, a clutch front/rear cover 1.7 and plastic fan blades 1.8, wherein the flange shaft 1.1 is connected with a main shaft of an engine through bolts, and when the main shaft of the engine rotates, torque can be directly transmitted to the flange shaft; the clutch front/back cover 1.7 and the driving disc are the most core parts in the silicone oil clutch, and the driving disc shaft is in threaded connection with the flange shaft 1.1, so that the torque of the engine can be directly transmitted to the driving disc, and then the torque is transmitted to the clutch front/back cover 1.7 by virtue of the silicone oil in the working cavity; the rear cover is provided with a screw and is connected with the plastic fan blade 1.8, and the screw can transmit torque to the fan blade to cause the fan blade to rotate; the protecgulum passes through the screw to be connected with the back lid, and inside contains the oil storage chamber for store silicon oil, and lid 1.7 surface equipartition before the clutch/back puts a large amount of fins, when the clutch during operation, can be used to the heat dissipation, with the high temperature of the clutch that reduces the hot arouse of slip.
According to the existing electric control silicone oil clutch, an electric control solenoid is connected with an engine through a wire harness, in the driving process, a whole vehicle control system obtains the required rotating speed of an electric control silicone oil fan according to parameters such as the water temperature in the engine and a corresponding algorithm, the required rotating speed is transmitted to the fan through the electric control solenoid, meanwhile, the actual rotating speed of the fan is transmitted to the control system through the electric control solenoid, and closed-loop control is achieved. The wiring harness connection often causes various problems to the after-market of the fan, reduces the service life of the fan if the fan is used, and causes a fault or abnormal parking of the whole vehicle if the fan is used seriously.
The invention relates to a wireless beam electric control silicone oil clutch, which further comprises a fixed platform 4.1, a wireless solenoid 1.6 and a controller 1.5, wherein the fixed platform 4.1 is fixedly connected with an engine shell or a fan protecting cover, the wireless beam solenoid 1.6 is fixedly connected with the fixed platform 4.1, the controller 1.5 is arranged on the fixed platform 4.1, and the controller 1.5 can receive wireless communication signals of an engine system and send signals of the required rotating speed of a fan to the wireless solenoid 1.6 for controlling the engagement or the separation of the silicone oil air clutch so as to ensure that the actual rotating speed of the silicone oil fan is continuously close to the required rotating speed; on the other hand, the real-time rotating speed of the silicone oil fan output by the wireless solenoid 1.6 can be fed back to an engine system through wireless communication to form closed-loop control, the required rotating speed of the silicone oil fan is continuously corrected, and finally the real-time rotating speed of the silicone oil fan is consistent with the required rotating speed of the fan. On one hand, the controller 1.5 receives a control signal of an engine system, controls the working state of the silicone oil fan and realizes the switching between the engaging state and the separating state of the fan; on the other hand, the actual rotating speed of the fan can be fed back to the engine system to realize closed-loop control, all information exchange is realized through the wireless communication module in the controller 1.5, the design of wire harnesses is avoided, the design and management cost of different solenoids required in different engine platforms is avoided, the platformization and standardization of the design of the electric control solenoid are realized, the applicability of the solenoid is greatly improved, and the production cost of the electric control silicone oil clutch is reduced. When the electronic control silicone oil clutch is assembled with the engine, wiring on the engine is not needed, and parts for fixing a wiring harness are not needed, so that the design cost of the engine is reduced, and the assembly process between the electronic control silicone oil clutch and the engine is simplified.
Referring to fig. 2, in an embodiment, an MCU chip 3.1, a wireless communication module 3.2, a power module 3.3, a PWM driving module 3.4, a voltage-stabilizing power supply module 3.5, and a filtering anti-disturbance module 3.6 are disposed in a controller 1.5.
The MCU chip 3.1 is the core component of the controller 1.5 and functions as follows: when the wireless solenoid power supply device works, the wireless solenoid power supply device respectively transmits driving signals to the PWM driving module 3.4 and the voltage-stabilizing power supply module 3.5 for supplying power to the wireless solenoid; collecting and filtering the actual rotating speed signal of the fan output by the wireless solenoid 1.6; and data interaction is carried out with the engine system by means of the module 3.2, so that on one hand, the required rotating speed of the silicone oil fan is obtained, and meanwhile, the actual rotating speed of the fan is fed back in real time.
The wireless communication module 3.2 is a signal transfer module, establishes data interaction between the MCU chip 3.1 and an engine system, and comprises a bi-pass signal transmitting and receiving device on hardware, and the interactive signal can cover the range within 3 meters.
The power module 3.3 is a voltage stabilization adjusting module, which can stably supply the direct current supplied by the storage battery 1.4 to the MCU chip 3.1, avoid the transient high voltage breakdown 3.1 of the storage battery output, and improve the overall service life of the controller 1.5.
The PWM driving module 3.4 and the voltage-stabilizing power supply module 3.5 are power supply modules of a wireless solenoid 1.6, the former can provide PWM signals with variable duty ratio and frequency, under the signals, magnetic fields with different intensities can be formed inside the clutch, and the working state of the clutch can also change between separation and full engagement; the latter can provide stable voltage for collecting the actual rotating speed of the fan.
The filtering anti-disturbance module 3.6 has two functions: the first filtering communication signal removes clutter in the signal, so that the signal transmission between an engine system and the invention is more accurate, and the signal interaction speed is faster; and the second shielding can shield external interference signals, thereby improving the capability of resisting electromagnetic interference, wherein the interference signals comprise communication signals of the mobile phone and other radio interference signals.
With reference to fig. 1-2 and 4-5, an alternator 1.2, a voltage regulator 1.3 and a storage battery 1.4 are arranged on a fixed platform 4.1, a flange shaft 1.1 is provided with a flange shaft gear 5.1, the alternator 1.2 is divided into a rotor and a stator, the rotor is a rotary moving part, and the stator is a fixed stationary part; the rotor of the alternator 1.2 is provided with an alternator gear 5.2 which meshes with the flange shaft gear 5.1. The flange shaft 1.1 rotates, a rotor part of the alternating current generator 1.2 is driven to move through meshing transmission of the flange shaft gear 5.1 and the generator gear 5.2, the alternating current generator 1.2 outputs three-phase alternating current into the voltage regulator 1.3, and the voltage regulator 1.3 processes the alternating current output by the alternating current generator to convert the alternating current into direct current for charging the storage battery 1.4; if the storage battery 1.4 is fully charged, the voltage regulator 1.3 can play a role in overcharge protection and does not continue to be charged. The invention can perform self-generation by means of the torque generated when the main shaft of the engine rotates, thereby reducing the energy loss of the electric control clutch and realizing the requirements of energy conservation and emission reduction of the national institute.
According to the invention, the gear is arranged at the rotor of the flange shaft 1.1 and the rotor of the alternating current generator 1.2, when the main shaft of the engine rotates, the flange shaft 1.1 synchronously rotates, and the rotor of the alternating current generator 1.2 is driven to rotate through the meshing motion between the gears, so that corresponding electric energy is generated, and the gear ratio between the flange shaft 1.1 and the rotor of the alternating current generator 1.2 can be flexibly adjusted according to the type of an engine platform, the type of a clutch and the operation working condition of the clutch, so as to meet the self-generating requirement.
The ac generator 1.2 of the present invention can output ac power with different power according to different rotation speeds of the rotor, for example: when the flange shaft 1.1 idles, the rotor speed of the alternating current generator 1.2 is also lower, the output power of the alternating current generator 1.2 is low, and the charging to the storage battery 1.4 is also slow; when the flange shaft 1.1 runs at a medium speed, the rotor can reach a rated rotating speed, and the storage battery 1.4 is charged at a rated power; when the main shaft of the engine runs at high speed, the rotor can reach the rotating speed limit value and charge the storage battery 1.4 quickly.
Referring to fig. 2, in this embodiment, a rectifying module 2.1, a filtering module 2.2, a battery charging and discharging detection control module 2.3, a voltage control module 2.4, and a fault indication and short-circuit protection module 2.5 are disposed inside a voltage regulator 1.3.
The rectifier module 2.1 can convert alternating current into direct current with unidirectional pulsation by means of unidirectional conductive performance of semiconductor diodes, and the rectifier module 2.1 adopts a bridge rectifier circuit consisting of four diodes.
The output of the rectifier module 2.1 is direct current with ripple components, the ripple is an alternating current component in direct current voltage, and if the ripple is directly led into the storage battery 1.4, the service life of the storage battery can be shortened, so that the RC filter module 2.2 is introduced here to remove the ripple components in the direct current.
The storage battery 1.4 is charged by the alternating current generator 1.2 and also bears the electric energy consumption of the controller 1.5, so that the storage battery 1.4 has a charging state and a discharging state at the same time, and a storage battery charging and discharging detection control module 2.3 is introduced for detecting and managing the charging state and the discharging state of the storage battery 1.4.
The voltage control module 2.4 is used for controlling the input voltage of the storage battery, once the input voltage exceeds the rated voltage of the storage battery, the control module can limit the voltage, and the input voltage of the storage battery cannot exceed the rated voltage, so that the service life of the storage battery is prolonged.
The fault indication and short-circuit protection module 2.5 is used for displaying the state of the storage battery: when the battery normally works, the indicator lamp lights green light, and when abnormal large current occurs, the protection module can immediately cut off the power supply loop to protect the battery, and simultaneously the indicator lamp lights red light to remind detection personnel to pay attention to.
The invention is provided with a voltage regulator 1.3 for converting alternating current into direct current, and covers the functions of rectification, filtering and overcharge protection: firstly, alternating current is output by the alternating current generator 1.2 and cannot be directly input into the storage battery 1.4, so that rectification is required to convert the alternating current into direct current; secondly, the direct current is rectified into pulsating direct current, because the direct current contains larger alternating current ripple wave components, if the direct current is directly led into the storage battery 1.4, the service life of the storage battery 1.4 can be reduced, and the filter circuit can filter out the ripple wave components to smooth the voltage waveform; if the charging power exceeds the safety threshold value of the storage battery, the overcharge protection function can be automatically started, the current is clamped in a safety range, and the storage battery is protected by 1.4.
Referring to fig. 4, in the present embodiment, the fixed platform 4.1 is connected to the wireless beam solenoid 1.6 by injection molding, and the inside of the fixed platform 4.1 integrates the alternator 1.2, the voltage regulator 1.3, the battery 1.4, the controller 1.5, and the wiring harness connected to each other by low-voltage injection molding. Through the low pressure technique of moulding plastics, outside high temperature when can effectively reduce plastics and mould plastics effectively protects above-mentioned electric component internal component not influenced by high temperature.
Referring to fig. 5, a flange shaft 1.1 is connected with a flange shaft gear 5.1 in an interference manner, the flange shaft gear 5.1 is connected with a generator gear 5.2 through inter-tooth meshing, one end of a metal bracket 5.3 is in screw connection with a fixed platform 4.1, and the other end of the metal bracket is arranged on an engine outer shell through screws. The gear ratio between the flange shaft gear 5.1 and the generator gear 5.2 can be adjusted according to the type of the generator 1.2 so as to meet the rated input rotating speed of the generator, and the rated rotating speed of the generator is greater than the rotating speed of the flange shaft. The rotation of the flange shaft 1.1 will drive the flange shaft gear 5.1, via inter-tooth engagement, the generator gear 5.2, and thereby the torque of the flange shaft will be transferred to the rotor part of the generator 1.2, and thereby electrical energy will be generated. When the clutch is in operation, the metal support 5.3 remains stationary relative to the engine, while the stationary platform 4.1 also remains stationary, so that the alternator 1.2, the voltage regulator 1.3, the battery 1.4 and the controller 1.5 remain stationary inside the stationary platform 4.1.
When the main shaft of the engine rotates, because the flange shaft 1.1 is in screw connection with the engine, the rotating speed of the flange shaft 1.1 is kept the same as that of the main shaft of the engine, and the mechanical energy generated by the rotation of the flange shaft 1.1 is divided into two parts: the first part of mechanical energy is directly transmitted into the driving disc, most of the mechanical energy is transmitted into the front cover 1.7 and the rear cover 1.7 through the shearing force of the silicon oil, and finally the plastic fan blades 1.8 are driven to rotate and radiate heat for an engine system; a small part of mechanical energy is converted into slip heat of the clutch due to the shearing force of the silicone oil, and heat dissipation is carried out through the surfaces of the front cover and the rear cover; the second part of the mechanical energy is transmitted to the rotor part of the alternator 1.2 through the gear set (flange shaft gear 5.1 and alternator gear 5.2) and outputs alternating current energy, which is then rectified into direct current by the voltage regulator 1.3 and stored in the accumulator 1.4.
When the main shaft of the engine runs at an idle speed, the flange shaft also runs at an idle speed, and less mechanical energy is generated: the first part of mechanical energy can only enable the plastic fan blade 1.8 to carry out idling operation, at the moment, the heat dissipation capability of the engine system is not strong, and the engine can be gradually heated; the second part of mechanical energy can only enable the rotor of the alternating current generator 1.2 to reach the no-load rotating speed, the charging current is low, the silicon oil fan can only enable the wireless solenoid 1.6 to enter the idle speed operation when more electric energy is required, and the storage battery enters the discharging process at the moment.
When the main shaft of the engine runs at a medium speed, the flange shaft 1.1 also runs at a medium speed, and the generated mechanical energy is normal: the first part of mechanical energy can enable the plastic fan blade 1.8 to operate at a medium speed, at the moment, the heat dissipation capacity of the fan blade reaches a normal level, and the engine can keep the current temperature; the second part of mechanical energy can enable the rotor of the alternating current generator 1.2 to enter a rated rotating speed range and be charged at a rated current, at the moment, the wireless solenoid 1.6 can enable the silicone oil fan to run at a medium speed only by needing a proper amount of electric energy, and at the moment, the storage battery 1.4 enters a slow charging process.
When the main shaft of the engine runs at a high speed, the flange shaft 1.1 also runs at a high speed, and more mechanical energy is generated: the first part of mechanical energy can enable the plastic fan blades 1.8 to run at a high speed, at the moment, the heat dissipation capacity of the engine is maximized, and the engine can be cooled rapidly; the second part of mechanical energy can enable the rotor of the alternating current generator 1.2 to reach the limit value rotating speed to operate and to be charged with the limit value current, at the moment, the wireless solenoid 1.6 can enable the silicone oil fan to operate at a high speed only by a small amount of electric energy, at the moment, the storage battery 1.4 enters a rapid charging process, and when the storage battery 1.4 is fully charged, the charging and discharging detection control module 2.3 starts the voltage control module 2.4 to limit the power input into the storage battery 1.4, so that the service life of the storage battery 1.4 is protected.
The wireless communication module 3.2 in the invention is located in the controller 1.5: on one hand, the control signal of an engine system can be received by the filtering disturbance rejection module 3.6, and is transmitted to the PWM driving module 3.4 and the voltage-stabilizing power supply module 3.5 through the MCU chip 3.1, so as to be used for supplying power to the wireless solenoid 1.6; on the other hand, the actual rotating speed value of the fan acquired by the wireless solenoid 1.6 can be transmitted back to the engine system to form a closed-loop control system. The transmitting terminal of the wireless communication can be directly integrated into the engine system or directly connected with the diagnosis port of the whole vehicle engine in a USB external connection mode.
The metal bracket 5.3 can be connected with an engine shell through a screw and can also be connected with a wind shield of a radiator, the specific connection position can be determined according to the structural sizes of a clutch, an engine system and the wind shield of the radiator, the selection is flexible, and the metal bracket only needs to be arranged at a position which is static relative to an engine.
The foregoing shows and describes the general principles and principal structural features of the present invention. The present invention is not limited to the above examples, and various changes and modifications may be made without departing from the spirit and scope of the invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (9)
1. The utility model provides an automatically controlled silicon oil clutch of wireless bundle, includes the flange axle with engine main shaft fixed connection, its characterized in that: the controller is arranged on the fixed platform, can receive wireless communication signals of an engine system and sends signals of the required rotating speed of the silicone oil fan to the wireless solenoid for controlling the engagement or the separation of a silicone oil fan clutch so that the actual rotating speed of the silicone oil fan is continuously close to the required rotating speed; on the other hand, the real-time rotating speed of the silicone oil fan output by the wireless solenoid can be fed back to an engine system through wireless communication to form closed-loop control, the required rotating speed of the silicone oil fan is continuously corrected, and finally the real-time rotating speed of the silicone oil fan is consistent with the required rotating speed of the fan;
the controller is internally provided with an MCU chip, a wireless communication module, a power supply module, a PWM (pulse-width modulation) driving module and a voltage-stabilizing power supply module, wherein the MCU chip is used for collecting and filtering actual rotating speed signals of the silicone oil fan output by the wireless solenoid; the MCU chip performs data interaction with an engine system by means of a wireless communication module to obtain the required rotating speed of the silicone oil fan, and simultaneously feeds back the actual rotating speed of the silicone oil fan in real time; when the electric control silicone oil clutch works, the MCU chip transmits a driving signal to the PWM driving module and the voltage-stabilizing power supply module for supplying power to the wireless solenoid.
2. The wireless beam electric control silicone oil clutch according to claim 1, characterized in that: the wireless communication module is a signal transfer module, establishes data interaction between the MCU chip and the engine system, and comprises a bi-pass signal transmitting and receiving device on hardware, and the interactive signal can cover the range within 3 m.
3. The wireless beam electric control silicone oil clutch according to claim 1, characterized in that: the power module is a voltage-stabilizing adjusting module, direct current supplied by the storage battery can be stably supplied to the MCU chip, transient high voltage output by the storage battery is prevented from puncturing the MCU chip, and the overall service life of the controller is prolonged.
4. The wireless beam electric control silicone oil clutch according to claim 1, characterized in that: the PWM driving module and the voltage-stabilizing power supply module are both power supply modules of a wireless solenoid, the PWM driving module provides PWM signals with variable duty ratio and frequency, magnetic fields with different intensities are formed inside the silicon oil clutch under the control of the PWM signals, and the working state of the silicon oil clutch can also change between separation and full engagement.
5. The wireless beam electric control silicone oil clutch according to claim 1, wherein: be equipped with filtering anti-disturbance module in the controller, filtering anti-disturbance module has two effects: the communication signal is filtered, clutter in the signal is removed, the signal transmission between an engine system and a silicone oil clutch is more accurate, and meanwhile, the signal interaction speed is higher; and the second shielding can shield external interference signals and improve the anti-electromagnetic interference capability of the silicone oil clutch.
6. The wireless beam electric control silicone oil clutch according to claim 1, characterized in that: the fixed platform is provided with an alternating current generator, a voltage regulator and a storage battery, the flange shaft is provided with a flange shaft gear, a rotor of the alternating current generator is provided with a generator gear meshed with the flange shaft gear, the flange shaft rotates and drives a rotor part of the alternating current generator to move through meshing transmission of the flange shaft gear and the generator gear, the alternating current generator outputs three-phase alternating current to the voltage regulator, and the voltage regulator processes the alternating current output by the alternating current generator to convert the alternating current into direct current for charging the storage battery; if the storage battery is fully charged, the voltage regulator can play the overcharge protection function and does not continue to be charged.
7. The wireless beam electric control silicone oil clutch according to claim 6, characterized in that: the voltage regulator is internally provided with a rectifying module, a filtering module, a storage battery charging and discharging detection control module, a voltage control module and a fault indication and short circuit protection module, and the rectifying module can convert alternating current into unidirectional pulsating direct current by means of unidirectional conductive performance of a semiconductor diode; the filtering module is used for removing ripple components in the direct current; the storage battery charging and discharging detection control module is used for detecting and managing the charging and discharging states of the storage battery; the voltage control module is used for controlling the input voltage of the storage battery, once the input voltage exceeds the rated voltage of the storage battery, the voltage control module can limit the voltage to ensure that the input voltage of the storage battery does not exceed the rated voltage so as to prolong the service life of the storage battery; the fault indication and short-circuit protection module is used for displaying the state of the storage battery: when the battery normally works, the green light is lighted to the pilot lamp, and when unusual heavy current appeared, power supply loop can be cut off at once to fault indication and short-circuit protection module to the protection battery, the ruddiness is lighted to the pilot lamp simultaneously, reminds detection personnel to pay attention to.
8. The wireless beam electric control silicone oil clutch according to claim 7, characterized in that: the rectifier module adopts a bridge rectifier circuit consisting of four diodes.
9. The wireless beam electric control silicone oil clutch according to claim 1, characterized in that: the fixed platform is fixedly connected with the engine outer shell through a metal bracket.
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| CN202110776848.3A CN113530658B (en) | 2021-07-09 | 2021-07-09 | Wireless harness electric control silicone oil clutch |
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| CN202110776848.3A CN113530658B (en) | 2021-07-09 | 2021-07-09 | Wireless harness electric control silicone oil clutch |
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Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1975386B1 (en) * | 2007-03-30 | 2012-07-11 | Behr America, Inc | Smart fan clutch |
| CN203373802U (en) * | 2013-06-28 | 2014-01-01 | 徐州徐工挖掘机械有限公司 | Excavator heat dissipation control system based on silicone oil clutch |
| CN104314661A (en) * | 2014-11-03 | 2015-01-28 | 上海科泰电源股份有限公司 | Cooling fan speed adjusting device of diesel generating set |
| CN106321218B (en) * | 2015-06-15 | 2019-04-16 | 徐工集团工程机械股份有限公司 | Cooling control system, method and excavator |
| CN105673181B (en) * | 2016-02-15 | 2018-04-03 | 潍柴动力股份有限公司 | Vehicle thermal management algorithm and thermal management system of whole |
| CN108071476B (en) * | 2017-12-06 | 2023-06-06 | 东风商用车有限公司 | Silicone oil fan clutch control system and control method thereof |
| JP2019116866A (en) * | 2017-12-27 | 2019-07-18 | 臼井国際産業株式会社 | Cooling fan control device |
| CN111022173A (en) * | 2020-03-05 | 2020-04-17 | 盛瑞传动股份有限公司 | Control system of electric control silicone oil clutch of internal combustion engine mechanical water pump |
| CN112145278B (en) * | 2020-06-30 | 2022-03-15 | 东风马勒热系统有限公司 | Electric control silicone oil fan clutch of hybrid power type motor |
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