Controller integrated deep sea motor

Abstract

The invention discloses a controller integrated deep sea motor. The controller integrated deep sea motor comprises a motor shell (1), a front end cover (2), a rear end cover (3), a stator (4), a motor shaft (5) and a rotor (6), wherein the outer side of the front end cover (2) is provided with a pressure balance and dynamic seal integrated mechanism (8); the outer side of the rear end cover (3) is provided with a controller hatchcover (9), and the controller hatchcover (9) is internally provided with a driving controller (10); the inner side of the rear end cover (3) is provided with a Hall integrated circuit (12); and the driving controller (10) is respectively connected with the Hall integrated circuit (12) and the stator (4) through an electric conduction screw (13) arranged on the rear end cover (3). The controller integrated deep sea motor provided by the invention has the beneficial effects that the balance of inner and outer pressure of the underwater motor is realized, and thus the motor is light enough; a balanced structure and a dynamic seal structure are integrated, and thus the structure of the underwater motor is compact; and the controller and the motor are integrated, so that the size of the motor is further recued, and the reliability of the motor is good.

Description

technical field [0001] The invention relates to the technical field of submersible motors, in particular to a controller-integrated deep-sea motor. Background technique [0002] The oil-filled balanced underwater motor has been widely used in underwater motors due to its small size and light weight. The main structure of the traditional underwater oil-filled brushless DC motor separates the motor body from the drive controller. The drive controller is placed in a separate cabin and connected with a watertight cable in the middle, which makes the motor bulky and heavy. And the signal transmission is interfered, the motor is not running smoothly, the reliability is poor, and the failure rate is high. [0003] There are three types of balancers commonly used in underwater motors: external capsule type, film type and piston type. They all compress the balancer through external pressure, and the balancer compresses the internal liquid to increase the pressure of the liquid to a...

AI Technical Summary

Problems solved by technology

The film type is made of rubber or other films and installed at the end or in the middle of the motor. Due to long-term use, the film may be broken or fatigued, and it is difficult to manufacture and the cost is high.

The piston type is to install the piston in the piston cylinder. This structure is safe and reliable, and the cost is low. However, the traditional piston type installs the piston separately, which occupies a large volume

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