Unlock instant, AI-driven research and patent intelligence for your innovation.

Brushless direct-current motor for propelling of underwater vehicles

A technology of DC motors and underwater vehicles, which is applied in the direction of electric components, electrical components, electromechanical devices, etc. It can solve the problems affecting the service life of the internal bearings of the motor, and achieve the effect of improving the overall life and the life of the motor bearings

Inactive Publication Date: 2016-12-07
XIAN MICROMOTOR RES INST
View PDF4 Cites 3 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

As the water depth of the aircraft continues to increase, the axial thrust generated by the ambient water pressure continues to increase, and the axial thrust borne by the motor shaft also continues to increase, seriously affecting the service life of the internal bearings of the motor.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Brushless direct-current motor for propelling of underwater vehicles

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0017] The present invention is described in further detail below in conjunction with accompanying drawing:

[0018] Such as figure 1 As shown: the present invention discloses a brushless DC motor for propulsion of an underwater vehicle, which includes a sealing mechanism, and the inside of the sealing mechanism is connected to a pressure-balanced oil-filled chamber for adjusting the internal pressure of the motor through a bearing 8 .

[0019] The pressure balance oil-filled cavity includes an oil storage tank 7 and a pressure balance device arranged at the upper end of the oil storage tank 7 .

[0020] The pressure balance device includes a cylinder body 5 , and a spring 4 is arranged inside the cylinder body 5 , one end of the spring 4 is connected with the interior of the cylinder body 5 , and the other end is connected with the piston 6 . The oil storage tank 7 is a cooling lubricating oil tank.

[0021] The sealing mechanism includes a housing and a dynamic seal 1, and...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses a brushless direct-current motor for propelling of underwater vehicles. The brushless direct-current motor comprises a sealing mechanism, wherein the sealing mechanism is internally connected with a pressure balance oil charging cavity body which is used for adjusting pressure in the motor; the pressure balance oil charging cavity body comprises an oil tank and a pressure balance device which is arranged at the upper end of the oil tank; the pressure balance device comprises a cylinder body in which a spring is arranged; one end of the spring is connected with the internal part of the cylinder body; and the other end of the spring is connected with a piston. The brushless direct-current motor can be applied to underwater propelling devices. By adopting such a technology, the manufactured brushless direct-current motor can work in deep seas, and has the characteristics of being small in volume, high in power, high voltage-resistant and long in service life.

Description

technical field [0001] The invention belongs to the field of brushless DC motors, in particular to a brushless DC motor for propulsion of underwater vehicles. Background technique [0002] Underwater, the motor is surrounded by seawater. As the depth increases, the environmental pressure of the motor will increase, and the environmental pressure is proportional to the water depth. When the water depth reaches a certain level, the traditional dynamic sealing mechanism cannot meet the requirements of use, and a special sealing mechanism needs to be designed. The axial force on the inner bearing of the motor includes the axial thrust generated by the propeller and the axial thrust generated by the ambient water pressure of the deep-water vehicle (that is, the internal and external pressure difference multiplied by the effective cross-sectional area of ​​the rotating shaft). When the aircraft is submerged, the thrust generated by the propeller is the main factor affecting the l...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): H02K5/124H02K5/132
CPCH02K5/124H02K5/132
Inventor 张亮
Owner XIAN MICROMOTOR RES INST