CN2854905Y

CN2854905Y - Permanent magnetic small moment electric generator

Info

Publication number: CN2854905Y
Application number: CN 200520130828
Authority: CN
Inventors: 张孟杰
Original assignee: TIANJIN PUQIANG ELECTRIC-MECHANICAL Co Ltd
Current assignee: TIANJIN PUQIANG ELECTRIC-MECHANICAL Co Ltd
Priority date: 2005-12-27
Filing date: 2005-12-27
Publication date: 2007-01-03
Anticipated expiration: 2015-12-27

Abstract

The utility model belongs to the field of electric generator and relates to a permanent magnetism generator with small moment. Stator of the utility model comprises has a cage-shaped structure configured by two ring wire slots made of non-ferromagnetic material, supporting rods same in diameter and axially arranged between these two ring wire slots, and enameled wires same in diameter and axially coated on these two ring wire slots. Such stator structure, instead of the silicon steel sheet stator, allows the generator to have simple and scientific structure, fast start, low cost, and easy fabrication. The utility model is a new generation of small moment generator.

Description

The permanent magnetism small torque generator

Technical field

The utility model belongs to electrical generator fields, especially a kind of permanent magnetism small torque generator.

Background technology

The structure of generation current machine mainly be by silicon steel sheet twine the enamelled wire winding as stator, permanent magnetic material as rotor, by the magnetic line of force that the enamelled wire winding cutting rotor on the silicon steel sheet produces, make the enamelled wire winding produce electric current and realize generating electricity.The shortcoming of this structure is: 1. because the silicon steel sheet of formation stator is that ferromagnetic material is made, and self promptly has certain magnetic attraction p-m rotor and stator, cause before generator starts at first will overcome this magnetic attraction, wasted the energy; 2. the silicon steel sheet of stator needs special-purpose punch press processing silicon steel sheet, and cost is higher, and the installation difficulty when silicon steel sheet is assembled into stator is bigger, the time-consuming expense material of taking a lot of work, and production efficiency is lower; 3. enamelled wire adopts tens and even the up to a hundred enamel-cover wire harness groups that copper cash constitutes, install and the specification requirement that connects higher; 4. the relatively large enamel-cover wire harness group that can not participate in cutting magnetic line is arranged at the stator two ends, wasted a large amount of valuable enamelled wires, increased cost.

Summary of the invention

The purpose of this utility model is to overcome the deficiencies in the prior art, and a kind of permanent magnetism small torque generator of novel stator is provided, and the novel stator of this generator adopts nonferromagnetic material, enamelled wire adopts single bundle structure, greatly reduced tripping force, and simple in structure, install and make simply easily.

The utility model solves its technical problem and takes following technical scheme to realize:

This permanent magnetism small torque generator, stator and rotor by shell, left end cap, right end cap and interior installation thereof constitute, rotor is made of the permanent magnet that installs on output shaft, iron core and the iron core cylinder outer edge surface, it is characterized in that: two identical annulus wire casings that stator is made up of nonferromagnetic material for its two ends and between these two annulus wire casings with the bar cage construction that strut constituted of the axial uniform installation in footpath, on these two annulus wire casings, be installed with single enamelled wire of restrainting with the axial uniform cover in footpath.

And the permanent magnet that installs on the iron core cylinder outer edge surface is multistage magnet steel.

And, on two annulus wire casings, be wound with the cotton yarn belt outside the uniform single bundle enamelled wire that covers.

Advantage of the present utility model and beneficial effect are:

1. adopt materials such as nonferromagnetic material such as aluminium, copper and engineering plastics to replace silicon steel sheet, not only solved the tripping force problem of higher effectively, also saved silicon steel sheet, press machine and mould, reduced cost as stator.

2. adopt the enamelled wire structure of single bundle structure, installation is made easily simple, has improved labor productivity, has saved a large amount of enamelled wires.

3. the whole generator that the utility model constituted science simple in structure, toggle speed is fast, and cost is lower, makes easily, is the small torque generator of a new generation.

Description of drawings

Fig. 1 is a cross section of the present utility model sectional plan view;

Fig. 2 is that the A-A of Fig. 1 is to cross-sectional view;

Fig. 3 is the A portion enlarged drawing of Fig. 1.

Embodiment

Below in conjunction with accompanying drawing the utility model embodiment is further described:

This permanent magnetism small torque generator, stator and rotor by shell 4, left end cap 2, right end cap 11 and interior installation thereof constitute, rotor is made of the permanent magnet 8 that installs on output shaft 1, iron core 9 and the iron core outer edge surface, output shaft is installed on the end cap by bearing 3, shell and left and right end cap are solidly installed by bolt and nut 5, and the permanent magnet that installs on the iron core outer edge surface is multistage magnet steel.Innovative point of the present utility model is mainly on the structure of stator, the bar cage construction that the strut 6 that two identical annulus wire casings 10 that this stator is made up of nonferromagnetic material for its two ends reach the same axial uniform installation in footpath between these two annulus wire casings is constituted, the annulus wire casing can adopt materials such as aluminium, copper and engineering plastics to make, and is installed with single bundle enamelled wire 7 with the axial uniform cover in footpath on these two annulus wire casings.

The single bundle enamelled wire that covers is that multiply enamelled wire 13 is formed, and in the present embodiment is three strands.Be wound with the cotton yarn belt 12 of insulating effect outside single bundle enamelled wire, generally speaking, the cotton yarn belt needs impregnated insulating paint.It is fixed that the quantity of uniform single bundle enamelled wire and density degree are come according to the size of generator power, and the quantity of enamelled wire is 20 in the present embodiment.

Claims

1. permanent magnetism small torque generator, stator and rotor by shell, left end cap, right end cap and interior installation thereof constitute, rotor is made of the permanent magnet that installs on output shaft, iron core and the iron core cylinder outer edge surface, it is characterized in that: two identical annulus wire casings that stator is made up of nonferromagnetic material for its two ends and between these two annulus wire casings with the bar cage construction that strut constituted of the axial uniform installation in footpath, on these two annulus wire casings, be installed with single enamelled wire of restrainting with the axial uniform cover in footpath.

2. permanent magnetism small torque generator according to claim 1 is characterized in that: the permanent magnet that installs on the iron core cylinder outer edge surface is multistage magnet steel.

3. permanent magnetism small torque generator according to claim 1 is characterized in that: be wound with the cotton yarn belt outside the uniform single bundle enamelled wire that covers on two annulus wire casings.