High-temperature-resistant motor

Abstract

The invention discloses a high-temperature-resistant motor, belonging to the technical field of motors. The high-temperature-resistant motor comprises a stator, a rotor, a left end cover, a right end cover and a jacket, and is characterized in that the jacket is provided with a first water cooling cavity; the left end of the first water cooling cavity is closed by a left space ring, and the rightend of the first water cooling cavity is closed by a right space ring; a first water inlet connector, a first water outlet connector and a power wire holder are arranged on the outer wall of the jacket in an extending way; the first water inlet connector and the first water outlet connector are maintained in a diagonal relationship and respectively communicated with the first water cooling cavity; and a winding outgoing line used for winding of the stator and isolated from the first water cooling cavity is formed in the first water cooling cavity and led to an outgoing line transition pipe ofthe power wire holder. The high-temperature-resistant motor has the advantages of being capable of guaranteeing good sealing performance, avoiding leakage and being safe, being capable of being convenient to manufacture, being capable of guaranteeing the stator winding from being intruded by the cooled water, being capable of preventing water short circuit, achieving a good cooling effect and meeting the long-term using requirement in a high-temperature environment, being capable of being convenient to manufacture and install, and being capable of being convenient to maintain due to the concise integral structure.

Description

technical field [0001] The invention belongs to the technical field of motors, and in particular relates to a high temperature resistant motor. Background technique [0002] Motors used in equipment such as, but not limited to, heat treatment equipment, dust removal equipment, and quenching furnaces of iron and steel plants in high-temperature environments are generally required to have good high-temperature resistance characteristics. As known in the industry, the cooling effect of the motor determines the temperature rise of the motor, and the temperature rise determines the service life and rated power of the motor. Therefore, improving the cooling effect of the motor has very important positive significance. [0003] There are two types of motor cooling methods, one is air cooling; the other is liquid cooling. The air-cooled cooling medium includes air and hydrogen whose thermal conductivity is 8.4 times that of air, and the liquid-cooled cooling medium includes water, ...

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Problems solved by technology

[0004] Chinese utility model patent authorization announcement number CN200944551Y recommends a motor cooled by circulating water. The stator, the front end cover and the rear end cover realize overall cooling. For details, please refer to the last paragraph on page 1 of the patent specification, but there are the following technical problems: First, the sealing between the front end cover and the stator and the rear end cover and the stator is difficult to guarantee ; The 2nd, owing to adopt water baffle to change circulating cooling water channel into S shape, although this measure can obtain ideal cooling effect, but manufacturing is more troublesome, especially easy to accumulate dirt in the channel, and silt occurs for a long time; The 3rd is The patent does not teach how the lead-out wire of the stator coil (winding) can avoid the influence of the flow channel, because once the lead-out end of the coil is attacked by cooling water, the entire motor will be short-circuited and damaged

[0005] CN201094148Y provides an energy-saving water-cooled permanent magnet variable-frequency speed-adjusting three-phase motor. The patent solution reflects the cooling of the motor by setting a water jacket on the stator, but it is not disclosed The specific structure of the water jacket and the technical revelation of how the coil winding avoids interference with the water jacket are also not disclosed

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