Electric control steering cooling fan
A cooling fan, electric control technology, applied in engine cooling, coolant flow control, engine components, etc., can solve problems such as fan inability to rotate, damage, and difficulty in stepless adjustment of fan blade angle, so as to avoid high heat and wear Effect
Pending Publication Date: 2021-11-19
福建省仙游电机股份有限公司
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Problems solved by technology
[0005] Use the motor to directly drive the fan to cool the water tank, and control the motor speed and rotation direction to adjust the air volume and direction, but this has a fatal flaw. If the motor fails to drive the fan to rotate, it will directly cause the engine to be damaged due to excessive water temperature
[0006] The electromagnetic clutch is used to control the separation and coupling of the engine and the fan, the abnormal noise of the meshing during high-speed rotation, the impact of rigid meshing, the sliding friction between the active and the passive leads to overheating, the stepless adjustment of the angle of the fan blades is difficult, and after the electromagnetic clutch fails, fan won't spin
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[0065] 1. Electromagnetic magnetic damping scheme
[0066] refer to Figure 1 to Figure 4 , a damping mechanism 8, including a moving balance iron 81, a magnetic steel bowl 82, a damping plate 83, a magnetic steel 84, an electromagnetic coil 85 and a coil frame 86; the coil frame 86 is fixed on the central axis sleeve 7, or both are conjoined Processed; the cable of the electromagnetic coil 85 wound on the coil frame 86 is drawn out through the central axis sleeve 7, and connected with the control circuit to control the on-off of the electromagnetic coil 85 current; and the magnetic steel bowl 82 is surrounded by the coil Outside the frame 86, that is, the non-contact package is outside; and is positioned on the central axis sleeve 7 of the coil frame through the bearing 9, which is also a rotating part; the bowl edge 821 of the magnetic steel bowl and the mobile balance iron 81 have suction The moving balance iron 81 is movably arranged on the spline shaft 65, that is, it ca...
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The invention relates to an electric control steering cooling fan which comprises a shell, fan blades, a steering mechanism, a driving mechanism, a speed reducing mechanism, a damping mechanism and an external control circuit. The shell is locked on an output shaft of an engine, and the fan blades are driven by the output shaft to rotate; and the fan blades are driven by the driving mechanism and the steering mechanism to rotate by an angle, and the action of the driving mechanism is controlled by the damping mechanism. In the invention, the damping mechanism controlled by an electromagnetic field is particularly adopted and is matched with damping force generated by magnetic steel across the air, so that the defects of high heat and abrasion caused by hard friction are avoided, and a spiral rotating wheel and a shell can form differential rotation, so that the angle of the fan blade is driven to change; a clockwork spring arranged between the spiral rotating wheel and the shell can drive a rotary rotating wheel to reset under the action of the spring force when the electromagnetic field action is lost, so that the fan blades return to the original position and the air supply angle, a control mechanism is ensured to be out of order, and the equipment can safely run in the initial state.
Description
Technical field: [0001] The invention belongs to the field of engine cooling, in particular to an electronically controlled steering cooling fan. Background technique: [0002] There is a fan on the engine to cool the water tank. Regardless of the external environment of the engine and the temperature of the body, the power output, the speed and other working conditions, the angle of the fan blades of the fan is constant. [0003] When the ambient temperature is low in cold weather, or when the engine is running with a small load, and the temperature of the engine body is not high, driving the fan only increases the power loss of the engine and consumes fuel. At the same time, excessive cooling of the engine results in insufficient fuel combustion and increased fuel consumption, which are completely side effects, increasing engine power loss and decreasing overall efficiency. [0004] At present, there are also improved solutions to the above problems on the market: [000...
Claims
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IPC IPC(8): F01P7/06F01P5/02
CPCF01P7/06F01P5/02
Inventor 叶芃叶杉叶常宾叶大卫叶羽纺
Owner 福建省仙游电机股份有限公司