Motor heat dissipation device based on gear transmission principle

Abstract

The invention relates to the technical field of motors. The invention further discloses a motor heat dissipation device based on the gear transmission principle. The motor heat dissipation device comprises a machine shell, and inner heat dissipation holes are formed in the surface of the machine shell. A cover plate is fixedly connected to the outer parts of the inner heat dissipation holes, and afixing frame is fixedly connected into the machine shell. A stator is fixedly connected to the interior of the fixed frame, the interior of the stator is movably connected with a rotor, the interiorof the rotor is fixedly connected with a rotating shaft, a bearing is fixedly connected to the outer part of the rotating shaft, a fixed cover is fixedly connected to the outer part of the bearing, aninner gear is movably connected to the interior of the fixed cover, a connecting gear is connected to the exterior of the inner gear in an engaged mode, and a connecting shaft is movably connected tothe interior of the connecting gear. Through cooperative use of the inner heat dissipation holes, the filtering cavity and the outer heat dissipation holes, the ventilation and heat dissipation effects are achieved, the filtering cavity effectively prevents dust from polluting the motor, and the working process and the service life of the motor are guaranteed.

Description

technical field [0001] The invention relates to the technical field of motors, in particular to a motor cooling device based on the principle of gear transmission. Background technique [0002] The motor refers to an electromagnetic device that realizes the conversion or transmission of electric energy according to the law of electromagnetic induction. It usually consists of a rotor with a rotating shaft, a bearing, a stator, a casing, and front and rear end covers. Due to its simple and stable structural characteristics, it is widely used in various Fields, such as electric tools, household appliances and small mechanical equipment, etc., during the operation of the motor, due to the winding resistance in the stator winding and the high-speed operation of the bearing, a large amount of heat is usually generated in the housing. With the continuous accumulation of heat, The entire motor will overheat, which will affect the electromagnetic conversion efficiency of the winding ...

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Problems solved by technology

[0003] The motor in the prior art is usually equipped with a cooling fan at one end of its rotating shaft, and the cooling fan rotates in the same direction with the rotating shaft of the motor and circulates through the ventilation holes provided by the wind cover. The rotation of the rotors is the same, so the heat dissipation effect of the motor is not obvious, and it only circulates through the vents of the wind cover, and the ventilation effect is poor, which further affects the heat dissipation of the motor, thereby affecting the operation of the bearing

[0004] In addition, the cooling fan is usually directly connected to the rotating shaft without other fixing methods, resulting in an unstable connection between the cooling fan and the rotating shaft, causing slip noise, and due to thermal expansion and contraction and vibration of the rotating shaft, it is easy to cause damage to the fan blades

[0005] In order to solve the above problems, the inventor provides a motor heat dissipation device based on the principle of gear transmission, which has the advantages of good heat dissipation effect, good ventilation effect, stable fan blade structure, and low noise. Cooperate with the use, so as to achieve the effect of ventilation and heat dissipation, and the filter chamber can effectively prevent dust from polluting the motor, ensuring the working process and service life of the motor, through the cooperation of the internal gear, connecting gear, fan gear and fan shaft, to achieve It rotates in the opposite direction to the rotating shaft, and the speed of the fan shaft is greater than the speed of the rotating shaft, so that the wind entering the motor is opposite to the direction of rotation of the rotor, increasing the relative movement between the wind and the rotor, thereby improving the heat dissipation effect, and the rotating speed of the fan shaft is greater than the rotating shaft speed. Further increase the heat dissipation effect, and solve the problems of poor heat dissipation effect, poor ventilation effect, unstable connection of fan blades, and loud noise

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