CN101867236A

CN101867236A - Generator

Info

Publication number: CN101867236A
Application number: CN200910106714A
Authority: CN
Inventors: 石为民
Original assignee: Individual
Current assignee: Individual
Priority date: 2009-04-14
Filing date: 2009-04-14
Publication date: 2010-10-20
Anticipated expiration: 2029-04-14
Also published as: CN101867236B

Abstract

The invention relates to a generator, which comprises a stator, a rotor and a base, the rotor is arranged in the stator and can rotate relative to the stator, the base is used for fixing the stator and supporting the rotor, the stator comprises a stator body, a coil winding and a through magnetism-shielding sleeve, the stator body is provided with a through hole, the wall of which is provided with a plurality of through slots, the slots are arranged around the central line of the through hole, a slot tooth is arranged between each two neighboring slots, the coil winding is wound on the slot teeth through the slots, the magnetism-shielding sleeve compresses the coil winding and is fixed in the through hole, and the rotor passes through the magnetism-shielding sleeve. When the generator operates, the magnetism-shielding sleeve can shield the induced magnetic field generated by the current in the coil winding, so that the rotation of the rotating magnetic field cannot be hindered because the mutual counteraction between the circulating direction of the induced magnetic field and the direction of the rotating magnetic field is avoided, and thereby the conversion efficiency of the generator is greatly increased.

Description

A kind of generator

Technical field

The present invention relates to a kind of generator.

Background technology

Existing generator is no matter be internal rotor, external rotor, and electromechanical conversion efficiency is all very low, the situation of overburden operation difference.Its main cause is: existing generator as shown in Figure 1, is fixed on each line on the stator body and holds group and all can produce a magnetic field 1 when output current, and the loop direction in this magnetic field 1 is conflicted mutually with the loop direction of the rotating magnetic field 2 of rotor generation.The purpose of rotating magnetic field 2 holds group exchange pole orientation by certain frequency to line exactly.When rotating magnetic field 2 when rotated, line holds group magnetic field 1 can hinder rotating magnetic field 2 rotation effectively, this is to influence one of generator electromechanical conversion efficiency key factor.

Add existing generator on any one working point, three lines that have only the front to accept magnetic field hold group in work, and other line holds the state that group all is in half acting or oppositely does work.Owing to have the electric current of forward flow to flow on the same lead, the electric current that reverse flow is arranged again simultaneously, and the electric current of forward flow will be exported the electric current that must overcome reverse flow, so just produced electron collision, electric energy has been transformed into heat energy, and it is very few to overcome the forward current of reverse current output.Another major reason that generator efficiency that Here it is is not high.

Under the situation of world today's energy scarcity,, will have considerable economic benefit and social effect if the electromechanical conversion efficiency of generator significantly can be improved.

Summary of the invention

Technical problem to be solved by this invention is to provide a kind of electromechanical conversion efficiency high generator.

The technical solution adopted for the present invention to solve the technical problems is: a kind of generator, comprise stator, can counterrotating with it rotor in stator, the support that is used for fixing stator and supporting rotor, described stator comprises stator body, line hold group and run through cover magnetosheath, described stator body is provided with through hole, the hole wall of described through hole is provided with a plurality of wire casings that run through, described wire casing is arranged around the center line of described through hole, be provided with the groove tooth between adjacent two wire casings, described line hold group through crossed beam trunking on the groove tooth, described cover magnetosheath compress described line hold the group and be fixed in the described through hole, described rotor passes the described magnetosheath that covers.

Further, described rotor comprises and covers Ci Gai, solid magnetic shell, main shaft and permanent magnet, the described magnetic lid that covers is fixed in the two ends of described solid magnetic shell respectively and forms a body component, and a described body component is fixed on the described main shaft, and described permanent magnet is fixed on the described solid magnetic shell.

The invention has the beneficial effects as follows: during generator work, go offline and hold the induced field that the electric current in the group produces by covering magnetosheath shielding, avoid the direction of the loop direction of this induced field and rotating magnetic field to conflict mutually and hinder rotating magnetic field and rotate, thereby improved the conversion efficiency of generator widely.

Further, because permanent magnet is installed on the solid magnetic shell, will be consolidated magnetic shell back to the magnetic field of stator body and mask, the magnetic field of permanent magnet just can't be radiated on the main shaft, does not form the magnetic field systemic circulation; Add and cover the two ends that the magnetic lid is installed on solid magnetic shell, mask the magnetic field at permanent magnet two ends, thereby the magnetic field concentration of rotor portion is in the inner wall area of stator body, and non-radiating holds the arcuate line segment part that group is exposed at the stator body outside to line, from and further improved electromechanical conversion efficiency widely.

Description of drawings

Fig. 1 is existing generator field analysis chart;

Fig. 2 is that the generator of one embodiment of the present invention is always schemed;

Fig. 3 is the enlarged diagram of A portion among Fig. 2;

Fig. 4 is the schematic perspective view after stator in one embodiment of the present invention and the rotor assembling;

Fig. 5 is the front view after stator in one embodiment of the present invention and the rotor assembling;

Fig. 6 is along the cutaway view of B-B line among Fig. 5;

Fig. 7 is the stator schematic diagram of one embodiment of the present invention;

Fig. 8 is the rotor schematic diagram of one embodiment of the present invention;

Fig. 9 is the generator field analysis chart of one embodiment of the present invention.

Embodiment

To shown in Figure 9, be one embodiment of the present invention as Fig. 2, comprise stator 2, can counterrotating with it rotor 3 in stator 2 and be used for fixing stator 2 and the support 16 of supporting rotor 3.Wherein, stator 2 comprise stator body 4, line hold group 8 and run through cover magnetosheath 6, stator body 4 is provided with through hole 7, the hole wall of through hole 7 is provided with a plurality of wire casings that run through 5, wire casing 5 is arranged on the hole wall of through hole 7 around the uniform arrangement of center line of through hole 7, be provided with groove tooth 1 between adjacent two wire casings, cover magnetosheath 6 and compress line and hold group 8 and be fixed in the through hole 7, rotor 3 passes and covers magnetosheath 6; Rotor 3 comprises that covering magnetic covers 12, consolidates magnetic shell 11, main shaft 9 and permanent magnet 10, forms a body component and cover magnetic lid 12 two ends that are fixed in solid magnetic shell 11 respectively, and this body component is fixed on the main shaft 9, Gu be fixed with permanent magnet 10 on the magnetic shell 11; Support 16 comprises front end housing 17, rear end cap 18, plastic casing 19 and metallic support 20, support 20 is used for fixing housing 19, housing 19 internal fixation have stator 2, housing 19 is provided with open front and after-opening, be convenient to install rotor 3, front end housing 17 and rear end cap 18 are sealed open front and after-opening respectively and are fixed on the housing 19, with supporting rotor 3.

In the present embodiment, the material that stator body 4 and housing 19 are adopted is a plastic cement, and is in light weight, reduces manufacturing cost; Cover magnetosheath 6 and adopt ferrous material to make, shield effectiveness is good; The number of magnetic poles ratio that the line of stator 2 holds group 4 number of poles and rotor 3 is 1: 1; One body component is positioned at the through hole 7 of stator body 4, makes rotating magnetic field more concentrated; Wire casing 5 is arranged on the hole wall of through hole 7 around the uniform arrangement of center line of through hole 7, and permanent magnet 10 is fixed on the solid magnetic shell 11 around the uniform arrangement of axis of main shaft 9, is in order to guarantee that rotating magnetic field evenly distributes; One body component is fixed on the main shaft 9 (see figure 6) that cooperates that adopts key 13 and keyway, specifically, the magnetic lid 12 that covers of one body component is provided with first keyway, main shaft 9 is provided with second keyway, key 13 is stuck in first keyway and second keyway and a body component is fixed on the main shaft 9, assembling is simple, can guarantee that a body component and main shaft 9 are synchronized with the movement.

Certainly in other execution mode, can also do some variations, for example, cover magnetosheath 6 and can also adopt the material in other maskable magnetic field to make; One body component is fixed in the affixed mode that can also adopt other on the main shaft 9, as the welding etc.

The assembling process of present embodiment is: line is held group 8 be contained in the wire casing 5 of stator body 4, to cover magnetosheath 6 then and hold in the through hole 7 that inserts stator body 4 under group 8 the prerequisite and be assembled into stator 2 compressing line, the stator 2 after will assembling again is pressed in the housing 19 of support 1; Then, cover magnetic and cover 12 and be assembled into a body component, by cooperating of key 13 and keyway a body component is fixed on then and is assembled into rotor 3 on the main shaft 9 and install with screw 15 at the two ends of solid magnetic shell 11; At last, the rotor 3 that assembles is inserted the stator 2 that has been pressed in the housing 19, on front end housing 17 and rear end cap 18, be pressed into bearing 14 respectively then and be assembled into front end housing parts and rear end cap parts, front end housing parts and rear end cap parts are set in main shaft 9, and the open front and the after-opening that make front end housing 17 and rear end cap 18 seal housing 19 respectively also are fixed on the housing 19 with screw 21.

During the work of present embodiment generator, the electromechanical conversion efficiency of generator high main because: one, go offline and hold the induced field 22 that the electric current in the group 8 produces by covering magnetosheath 6 shielding, avoid the direction of the loop direction of this induced field 22 and rotating magnetic field 23 to conflict mutually and hinder rotating magnetic field 23 and rotate, thereby improved the electromechanical conversion efficiency of generator widely, and made the load holding capacity of generator strengthen.Its two, by solid magnetic shell 11 with cover the silicon steel sheets that magnetic lid 12 replaces on the prior art main shafts,, avoid the magnetic field of permanent magnet to form a bigger magnetic field and circulate through silicon steel sheet and main shaft because silicon steel sheet can be transmitted to the magnetic field of rotor portion permanent magnet on the main shaft.Permanent magnet 10 in the present embodiment is installed on the solid magnetic shell 11, will be consolidated magnetic shell 11 back to the magnetic field of stator body 4 and mask.The magnetic field of permanent magnet 10 just can't be radiated on the main shaft 9, does not form the magnetic field systemic circulation.Add and cover the two ends that magnetic lid 12 is installed on solid magnetic shell 11, its effect is that solid magnetic shell 11 is fixed on the main shaft 9, and masks the magnetic field at permanent magnet 10 two ends.One body component must not exceed the through hole 7 of stator body 4, the inner wall area of stator body 4 is sensed in the magnetic field that makes rotor 3 parts more concentrated area, and non-radiating holds the arcuate line segment part that group 8 is exposed at stator body 4 outsides to line, from and further improved electromechanical conversion efficiency widely.Its three because the number of magnetic poles ratio of the number of poles that the line of stator 2 holds group 4 and rotor 3 is 1: 1; , make that the wired group 8 that holds of institute is worked simultaneously, has thoroughly improved the drawback that existing generator has only three lines jobs contract to do on each working point, thereby has further improved electromechanical conversion efficiency on each working point of present embodiment generator.

In addition, the stator body 4 of present embodiment generator and the housing of support 16 19 adopt plastics to replace metal to process, thereby low cost of manufacture, and be in light weight.Because the present embodiment generator has been cancelled silicon steel sheet stator core part in the prior art, eliminated the attraction (be called iron loss) of rotating magnetic field when operation, also have because rotating magnetic field is separated in the magnetic field that line holds group, generator magnetic loss when heavy duty is reduced, thereby present embodiment generator drive power is light.

Above content is to engage concrete execution mode to further describing that the present invention did, and can not assert that concrete enforcement of the present invention is confined to these explanations.For the general technical staff of the technical field of the invention, without departing from the inventive concept of the premise, can also make some simple deduction or replace, all should be considered as belonging to protection scope of the present invention.

Claims

1. generator, comprise stator, can counterrotating with it rotor in stator, the support that is used for fixing stator and supporting rotor, described stator comprises that stator body and line hold group, described stator body is provided with through hole, the hole wall of described through hole is provided with a plurality of wire casings that run through, described wire casing is arranged around the center line of described through hole, be provided with the groove tooth between adjacent two wire casings, described line hold group through crossed beam trunking on the groove tooth, it is characterized in that: described stator also comprises the magnetosheath that covers that runs through, described cover magnetosheath compress described line hold the group and be fixed in the described through hole, described rotor passes the described magnetosheath that covers.

2. generator according to claim 1, it is characterized in that: described rotor comprises and covers Ci Gai, solid magnetic shell, main shaft and permanent magnet, the described magnetic lid that covers is fixed in the two ends of described solid magnetic shell respectively and forms a body component, a described body component is fixed on the described main shaft, and described permanent magnet is fixed on the described solid magnetic shell.

3. generator according to claim 2 is characterized in that: the number of poles that the line of described stator holds group is 1: 1 with the number of magnetic poles ratio of rotor.

4. generator according to claim 2 is characterized in that: the described magnetosheath that covers is the irony body.

5. generator according to claim 2 is characterized in that: a described body component is positioned at the through hole of described stator body.

6. generator according to claim 2 is characterized in that: it is fixing with cooperating of keyway by key that a described body component is fixed on the described main shaft.

7. according to any described generator in the claim 2～6, it is characterized in that: described wire casing is arranged on the hole wall of described through hole around the uniform arrangement of center line of described through hole, and described permanent magnet is fixed on the described solid magnetic shell around the uniform arrangement of axis of described main shaft.

8. according to any described generator in the claim 1～6, it is characterized in that: described stator body is a plastic body.

9. according to any described generator in the claim 1～6, it is characterized in that: described support comprises the housing that is used for fixing described stator, and described housing is a plastic body.