Centrifugal electromagnetic clutch and water pump with centrifugal electromagnetic clutch

Abstract

Provided is a centrifugal electromagnetic clutch. The centrifugal electromagnetic clutch comprises a first rotating body, a second rotating body and a transmission shaft, wherein the second rotating body can rotate along with the first rotating body, power of the second rotating body is transmitted out through the transmission shaft, the second rotating body is arranged inside the first rotating body in a radial mode, and a centrifugal clutch device is axially arranged between the first rotation body and the second rotating body, and is arranged inside the second rotating body in a radial mode. The centrifugal clutch device comprises a plurality of magnetism-conductive centrifugal pieces, an electromagnetic coil, a magnetism-conductive connecting body and a magnetism-conductive supporting body, wherein the magnetism-conductive connecting body is fixed to the inner side of the first rotating body, and is arranged outside the electromagnetic coil in a radial mode, the magnetism-conductive supporting body is installed on the transmission shaft, the first rotating body is fixed to the magnetism-conductive supporting body, the magnetism-conductive centrifugal pieces are distributed along the outer circumference of the electromagnetic coil, one end of each magnetism-conductive centrifugal piece is hinged to the position between the magnetism-conductive connecting body and the magnetism-conductive supporting body, friction plates are arranged on the outer surfaces of the magnetism-conductive centrifugal pieces, wear-resistant layers are arranged on the inner wall face, opposite to the friction plates, of the second rotating body, when the electromagnetic coil is deenergized, the friction plates are attached to the wear-resistant layers of the second rotating body, and when the electromagnetic coil is energized, the friction plates are separated from the wear-resistant layers of the second rotating body.

Description

technical field [0001] The invention relates to an electromagnetic clutch, in particular to a centrifugal electromagnetic clutch used for controlling the switch of an automobile water pump. Background technique [0002] The clutch of the electromagnetic clutch realizes the attraction and separation with other magnetic components by controlling the power on and off of the electromagnetic coil. The action of the traditional electromagnetic clutch is along the axis of the main shaft, and the coil of the electromagnetic core can be attracted by it. The magnetically conductive parts and other driven components connected to the magnetically conductive parts are arranged and installed along the axis of the main shaft, which makes the overall volume of the clutch larger and occupies a larger installation space. [0003] The traditional automobile water pump has no clutch control. As long as the engine is running, the water pump will work, which will increase the load on the automobi...

AI Technical Summary

Problems solved by technology

[0003] The traditional automobile water pump has no clutch control. As long as the engine is running, the water pump will work, which will increase the load on the automobile engine, increase the fuel consumption and emission of the automobile, and is not conducive to automobile energy saving, emission reduction and environmental protection. Some automobile water pumps use traditional electromagnetic clutch control switches. The instantaneous impact force is large, which may easily cause the impeller of the water pump to fall off, and because the traditional electromagnetic clutch is large in size, it requires a large installation space and occupies an additional assembly space of the water pump

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