Molecular pump motor and manufacturing method

Abstract

The embodiments of this specification provide a molecular pump motor and a manufacturing method, which relate to the field of molecular pump motors. The molecular pump motor includes: a pump body with a hollow chamber; a stator inner sleeve fixed to the pump body, the stator inner sleeve has a hollow rotor accommodation cavity, and the stator inner sleeve and the pump body A stator accommodating cavity is formed between the inner walls of the cavity; the stator is sheathed in the inner sleeve of the stator and located in the stator accommodating cavity. The stator inner sleeve is installed in the pump body chamber of the molecular pump to form a stator housing cavity with the inner wall of the pump body chamber. The stator inner sleeve has guiding and positioning functions, so that the stator enters the pump body along the stator inner sleeve, and the stator is filled with resin glue The cavity improves the packaging success rate and heat dissipation effect of the molecular pump motor.

Description

technical field [0001] This specification relates to the field of molecular pump motors, in particular to a molecular pump motor and a manufacturing method. Background technique [0002] Molecular pump is a commonly used equipment for obtaining vacuum. There is a cavity inside it, and a high-speed motor is installed in the cavity. In recent years, molecular pumps have been widely used in industry, scientific research and other fields. [0003] One of the core components of the molecular pump is the molecular pump motor. Usually, the stator of the molecular pump motor and the pump body are assembled by thermal assembly, that is, the pump body is placed in a high temperature environment and heated for a certain period of time, and then the motor stator is placed at the bottom of the pump body. After the pump body returns to room temperature, fasten the motor stator. Because the outer diameter of the stator is difficult to ensure coaxiality and other factors, it is easy to ge...

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Problems solved by technology

Because the outer diameter of the stator is difficult to ensure coaxiality and other factors, it is easy to be stuck during the assembly process of the motor stator

[0004] Therefore, relying on many years of experience and time in related industries, the inventor proposes a molecular pump motor and a manufacturing method to overcome the phenomenon that the stator assembly process of the molecular pump motor in the prior art is prone to installation stagnation.

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