Forced air cooling high thrust flat three-phase linear asynchronous motor

Abstract

The invention relates to a forced air cooling high thrust platypelloid type three-phase linear asynchronous motor, comprising a primary part and a secondary part, wherein the primary part comprises a primary iron core, and a winding and a cooling system, which are positioned in the primary iron core. At least one blower is installed on the upper part of a plenum chamber, both sides of the plenum chamber are respectively connected with end air chambers, the plenum chamber is communicated with the end air chambers to form an air passage, and the passage reaches the end of the winding; side wind screens are installed at both sides of the motor, a front obstacle removing device is fixed on a front end plate, a rear obstacle removing device is fixed on a rear end plate, and the winding is connected with a special variable-frequency power source by a wire connecting terminal; and the secondary part is in the shape of a strip plate, a magnetic conduction plate is welded on a support, and a current-conducting plate is bolted on the support. The cost of an urban rail car towed by the motor of the invention is low and tunnel sections can be approximately reduced by 30 to 50 percent, thus greatly increasing the towing efficiency of the car and reducing the energy consumption of the system.

Description

Technical field: [0001] The invention relates to a forced-air-cooled high-thrust flat three-phase linear asynchronous motor. Background technique: [0002] At present, due to the natural air cooling of the high-thrust flat linear motor, the ventilation effect is poor and the volume is large, which cannot meet the needs of various industries. Large-thrust linear motors have high power and high heat generation. Considering heat dissipation and performance problems, the volume of the motor should be increased accordingly. However, due to the limitation of the use environment, it is required to be small in size. In order to solve the above contradictions, ventilation cooling has become a key issue in motor design. [0003] The patent number "02210740.1" of the Patent Office of the State Intellectual Property Office discloses a flat three-phase linear asynchronous motor. The linear motor is composed of a primary iron core and a primary coil. The silicon steel sheet is made of ...

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Problems solved by technology

The existing technology is natural air cooling, under the same thrust, the volume is large

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