Underwater motor and thruster integrated apparatus

A technology of underwater motors and propellers, which is applied in the direction of propulsion device engines, electromechanical devices, propulsion components, etc., can solve the problem of low power density of the device, and achieve the effect of compact structure, simple use, and stable speed regulation

Inactive Publication Date: 2009-04-29
HARBIN ENG UNIV
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  • Abstract
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Problems solved by technology

The whole device has low power densi

Method used

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  • Underwater motor and thruster integrated apparatus
  • Underwater motor and thruster integrated apparatus

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specific Embodiment approach 1

[0016] Specific implementation mode one: combine figure 1 , The integrated device of this specific embodiment is composed of a rare earth permanent magnet brushless DC motor, a controller 19, a speed reducer, and a propeller 9. The permanent magnet brushless DC motor is composed of a motor casing 4, a stator core 5 embedded with three-phase windings, and a rotor pasted with high-grade sintered NdFeB 18. The stator core 5 is equipped with a position sensor, which is placed according to a pre-calculated mechanical angle. The output line of the position sensor is connected to the controller 19 through the wire 2, and the lead-out wire of the three-phase winding of the stator is connected to the controller phase 19 through the wire 3. The controller 19 is composed of a speed measuring circuit, a control circuit and an inverter main circuit. The speed reducer is a planetary gear speed reducer, which is composed of a sun gear 14 , a planet gear 6 and a planet carrier 13 . One end...

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Abstract

The invention provides an apparatus integrating an underwater motor and a thruster, comprising a motor casing and end covers respectively arranged at two ends of the motor casing. The clearance between the end cover and the motor casing is sealed; a stator core embedded with a three-phase winding is fixed on the inner side of the motor casing; a rotor provided with a fixing shaft at one end and a transmission shaft at the other end is arranged through a bearing inside the motor casing and the transmission shaft is extended out of the end cover and a screw propeller is fixed on the transmission shaft; the sintered NeFeB is stuck onto the rotor; a locating sensor is arranged on the stator core; a controller is arranged inside the motor casing and the three-phase winding and a controller arranged on the stator are respectively connected with the controller through lead; a control cable of the controller is derived out from the end cover of one end; and an air deflector is fixed through a bracket on the motor casing. The adoption of the high-grade sintered NeFeB as alnico largely reduces the motor volume and weight so as to lead the integral structure to become compact and enhance the total efficiency.

Description

(1) Technical field [0001] The invention relates to an underwater propulsion device, in particular to an electric propulsion device for an underwater vehicle. (2) Background technology [0002] Electric propulsion devices are an important part of modern underwater vehicles. At present, the motors and propellers of most electric propulsion devices are split structures, which have large mass and volume, low overall efficiency, and high noise. In the utility model patent application document with the Chinese patent application number 200620055186.1 and the name "An Electric Underwater Propeller", although the disclosed propeller puts the motor and reducer in the sealed shell, it uses the traditional DC The motor, the housing, the motor, and the reducer each play their original functions independently. The whole device has low power density and is mainly used on small ships. (3) Contents of the invention [0003] The purpose of the present invention is to provide an underwat...

Claims

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Application Information

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IPC IPC(8): B63H5/07B63H21/17H02K21/14H02K21/02H02K7/14H02K7/116H02K5/22H02K11/00H02K11/33
Inventor 罗耀华张强姚绪梁程鹏孟繁荣张文义游江赵凯岐刘宏达黄曼磊
Owner HARBIN ENG UNIV
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