Permanent magnet motor for door motor

Abstract

The related elevator-used permanent magnet motor comprises: a permanent magnet synchronous motor, a coder embedded in the cavity of motor end cover, and a frequency converter using / sharing the heat fin of shell on bottom, wherein all three members are integrated in a shell. This invention has compact and simple structure, high transfer efficiency, and low cost.

Description

technical field [0001] The invention relates to a permanent magnet motor for a door machine, which belongs to a driving device for an elevator car door switch. Background technique [0002] At present, the driving device for the elevator car door switch, the electric motor, is mostly a three-phase asynchronous motor. This type of motor for door openers mainly has the following disadvantages: 1. Since the commonly used motor includes a complex reduction device, the motor is large in size, complex in structure, heavy in weight, high in cost, and relatively large in energy consumption. 2. Generally, the temperature rise of the asynchronous motor used for the door opening device of the elevator car cannot meet the needs of low-speed constant torque. 3. In order to have a good heat dissipation performance, the door control system must be installed separately from the motor, which makes the overall layout of the frequency conversion door machine complicated, and directly affects ...

AI Technical Summary

Problems solved by technology

This type of motor for door openers mainly has the following disadvantages: 1. Since the commonly used motor contains a complex deceleration device, the motor is large in size, complex in structure, heavy in weight, high in cost, and relatively large in energy consumption

2. Generally, the temperature rise of the asynchronous motor used for the door opening device of the elevator car cannot meet the needs of low-speed constant torque

3. In order to have a good heat dissipation performance, the door control system must be installed separately from the motor, which makes the overall layout of the frequency conversion door machine complicated and directly affects the complexity of the entire elevator layout, increasing the construction area and construction costs

[0004] After searching domestic and foreign patent documents, there are more than a hundred inventions related to elevator door machines and motors, but no inventions related to permanent magnet motors for elevator door machines have been found.

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