High-voltage explosion-proof three-phase asynchronous motor with low temperature rise

Abstract

The invention discloses a high-voltage explosion-proof three-phase asynchronous motor with a low temperature rise. The high-voltage explosion-proof three-phase asynchronous motor comprises an engine base, wherein a rotor and a stator are arranged in the engine base; a front end cover and a rear end cover are respectively arranged at the front end and the rear end of the rotor; the circle centers of the rotor and the stator are lower than the circle center of the engine base; a cooling pipe area is arranged on the engine base; a cooling pipe which passes through two ends of the engine base is arranged in the cooling pipe area; an external fan is arranged at one end, on the rear end cover, of the rotor; a fan cover is arranged at one end, on the rear end cover, of the engine base; the joint surface of the engine base and the front end cover and the joint surface of the engine base and the rear end cover are set into explosion-proof joint surfaces; the rotor is rotationally connected with the front end cover and the rear end cover through a front bearing and a rear bearing respectively; and the joint surface of the front bearing, the rotor and the front end cover and the joint surface of the rear bearing, the rotor and the rear end cover are set into the explosion-proof joint surfaces. According to the high-voltage explosion-proof three-phase asynchronous motor with the low temperature rise, the center height is reduced under the premise of ensuring the performance; and the high-voltage explosion-proof three-phase asynchronous motor has the advantages of low temperature rise, low vibration, low noise, high performance and high reliability.

Description

technical field [0001] The invention belongs to the field of design and manufacture of box-type high-voltage motors, in particular to a high-voltage explosion-proof three-phase asynchronous motor with low temperature rise. Background technique [0002] With the improvement of the international community's awareness of green economy and low-carbon economy, countries are vigorously promoting the use of high-efficiency motors. On May 31, 2010, my country's Ministry of Finance and Development and Reform Commission announced the "Implementation Rules for the Promotion of High-Efficiency Motor Products". The introduction of this policy has played a role in promoting the promotion of high-efficiency and high-voltage three-phase asynchronous motors in my country. [0003] On December 18, 2013, the "National Standards Announcement of the People's Republic of China 2013 No. 26" document released the national standard GB30254-2013 "Energy Efficiency Allowable Values ​​and Energy Efficie...

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Problems solved by technology

[0004] With the increasing demand for high-voltage flameproof motors, the low center height of the existing flameproof high-voltage three-phase asynchronous motors cannot meet the needs of the market, and users clearly require lower motor center heights.

Moreover, the heat dissipation effect of the existing flameproof high-voltage three-phase asynchronous motor is not good, and the temperature rises block, which affects energy efficiency. In addition, the noise is high during use.

The above shortcomings seriously affect the performance and reliability of the whole machine

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