Explosion-proof easy heat radiation type three-phase asynchronous motor

Abstract

The invention discloses an explosion-proof easy heat radiation type three-phase asynchronous motor comprising a stator, a rotor, a rotating shaft, a motor shell, a front end cap and a rear end cap. The explosion-proof easy heat radiation type three-phase asynchronous motor is characterized in that the motor shell is externally provided with a junction box, the junction box is provided with three explosion-proof connectors for connection of cables, each explosion-proof connector comprises a connector shell and a compressing nut used for compressing the cable, a sealing ring is arranged betweenthe connector shell and the compressing nut and an O-shaped ring is arranged between the connector shell and the junction box; and the two ends of the rotating shaft are an installing end and a fan connecting end respectively, the axis position of the rotating shaft is provided with an exhaust pipeline hole, the right port of the exhaust pipeline hole is exposed out of the fan connecting end, theposition, which is close to the installing end, of the rotating shaft is provided with an air inlet channel communicated with the left port of the exhaust pipeline hole, and the rotating shaft is provided with an air inducing device corresponding to the channel port of the air inlet channel. The explosion-proof easy heat radiation type three-phase asynchronous motor has the characteristics of highexplosion-proof performance and great heat radiation performance and performing heat radiation from the inside directly without damaging the sealing performance of the motor.

Description

technical field [0001] The invention belongs to the technical field of motors, in particular to a flameproof and easy-to-heat-radiation three-phase asynchronous motor. Background technique [0002] Three-phase asynchronous motor is a kind of AC motor, which is a type of motor powered by simultaneous access to 380V three-phase AC power supply. Because of its simple structure, convenient manufacture, use and maintenance, reliable operation, small mass and low cost, it is widely used in driving machine tools, water pumps, compressors, lifting winches, mining machinery, light industry Machinery, agricultural and sideline products processing machinery and most industrial and agricultural production machinery and household appliances and various electric tools, small point equipment. [0003] Because this type of motor is often used in some dangerous environments, such as mines and other working environments where there are some flammable and explosive gases, ordinary motors may ...

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Problems solved by technology

[0004] At present, the connection between the junction box and the cable of the flameproof motor is prone to loose and rot after long-term use in harsh environments, which affects the flameproof performance of the motor

[0005] The heat dissipation device provided by the traditional motor itself is generally the heat dissipation ribs on the casing and the fan, but when the motor is actually used, it is easy to cause the motor to heat up due to the long use time, and the heat inside the motor cannot be discharged in time, resulting in the motor burning. Or cause the performance of the motor to decline, and greatly shorten the service life of the motor

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