CN110676997A - Permanent magnet generator with positive and negative double rotors - Google Patents

Permanent magnet generator with positive and negative double rotors Download PDF

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Publication number
CN110676997A
CN110676997A CN201911026158.5A CN201911026158A CN110676997A CN 110676997 A CN110676997 A CN 110676997A CN 201911026158 A CN201911026158 A CN 201911026158A CN 110676997 A CN110676997 A CN 110676997A
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CN
China
Prior art keywords
outer rotor
rotating shaft
rotor
central rotating
driving wheel
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Pending
Application number
CN201911026158.5A
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Chinese (zh)
Inventor
杨道彤
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Individual
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Individual
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Priority to CN201911026158.5A priority Critical patent/CN110676997A/en
Publication of CN110676997A publication Critical patent/CN110676997A/en
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    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K16/00—Machines with more than one rotor or stator
    • H02K16/005—Machines with only rotors, e.g. counter-rotating rotors
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K1/00—Details of the magnetic circuit
    • H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
    • H02K1/22—Rotating parts of the magnetic circuit
    • H02K1/27—Rotor cores with permanent magnets
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K13/00—Structural associations of current collectors with motors or generators, e.g. brush mounting plates or connections to windings; Disposition of current collectors in motors or generators; Arrangements for improving commutation
    • H02K13/003—Structural associations of slip-rings
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K5/00—Casings; Enclosures; Supports
    • H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K5/00—Casings; Enclosures; Supports
    • H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
    • H02K5/22—Auxiliary parts of casings not covered by groups H02K5/06-H02K5/20, e.g. shaped to form connection boxes or terminal boxes
    • H02K5/225—Terminal boxes or connection arrangements
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
    • H02K7/10—Structural association with clutches, brakes, gears, pulleys or mechanical starters
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
    • H02K7/10—Structural association with clutches, brakes, gears, pulleys or mechanical starters
    • H02K7/116—Structural association with clutches, brakes, gears, pulleys or mechanical starters with gears
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K9/00—Arrangements for cooling or ventilating
    • H02K9/02—Arrangements for cooling or ventilating by ambient air flowing through the machine
    • H02K9/04—Arrangements for cooling or ventilating by ambient air flowing through the machine having means for generating a flow of cooling medium
    • H02K9/06—Arrangements for cooling or ventilating by ambient air flowing through the machine having means for generating a flow of cooling medium with fans or impellers driven by the machine shaft

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)

Abstract

The invention relates to a permanent magnet generator with a positive and negative double rotors, which comprises a shell, and an outer rotor, an inner rotor, a central rotating shaft, a driving wheel, a driven wheel, a driving wheel and a heat dissipation fan which are arranged in the shell. An outer rotor is arranged in the shell, an inner rotor is arranged in the outer rotor, the inner rotor is fixed on the central rotating shaft and rotates along with the rotation of the central rotating shaft, the shell and the outer rotor are respectively installed on the central rotating shaft through bearings, the outer rotor rotates around the central rotating shaft, and the rotating direction of the outer rotor is opposite to that of the inner rotor. The invention has the beneficial effects that: the outer rotor and the inner rotor of the double-rotor generator are driven to synchronously rotate at a constant speed in a forward and reverse direction through the driving wheel, the driving wheel and the driven wheel, so that the relative rotating speed of the outer rotor and the inner rotor of the generator is doubled, the generating efficiency of the generator is improved, and the application range is wide.

Description

Permanent magnet generator with positive and negative double rotors
The technical field is as follows:
the invention relates to a permanent magnet generator with a positive and negative double rotors, belonging to the technical field of generator construction.
Background art:
the existing generator mainly comprises a stator, a rotor, an end cover, an electric brush, a base, a bearing and other parts. The stator is composed of a base, a stator core, a coil winding and other structural members for fixing the parts. The rotor is composed of rotor iron core, rotor magnetic pole (with yoke, pole winding), slip ring (also called copper ring, collecting ring), fan and rotating shaft. The stator and the rotor of the generator are connected and assembled through the bearing, the base and the end cover, so that the rotor can rotate in the stator, a certain exciting current is introduced through the slip ring, the rotor becomes a rotating magnetic field, the stator coil performs the motion of cutting magnetic lines of force, induction potential is generated, the induction potential is led out through the wiring terminal and connected in a loop, and current is generated. The generated electric quantity is in direct proportion to the rotating speed of the rotor, and the larger the rotating speed of the rotor is, the larger the generated electric quantity is. However, in some new energy generators, such as wind power generators, tidal power generators, etc., the rotating speed of the rotor is very low, so that the generated electricity is little, and the development prospect of low-speed power generation is limited.
The invention content is as follows:
the invention aims to provide a permanent magnet generator with positive and negative double rotors, which can double the rotating speed of the generator and improve the generating efficiency.
In order to achieve the purpose, the invention adopts the technical scheme that:
a permanent magnet generator with a positive and negative double rotors comprises a shell, an outer rotor, an inner rotor, a central rotating shaft, a driving wheel, a driven wheel, a driving wheel and a heat dissipation fan. An outer rotor is arranged in the shell, an inner rotor is arranged in the outer rotor, the inner rotor is fixed on the central rotating shaft and rotates along with the rotation of the central rotating shaft, the shell and the outer rotor are respectively installed on the central rotating shaft through bearings, the outer rotor rotates around the central rotating shaft, and the rotating direction of the outer rotor is opposite to that of the inner rotor. The driven wheel is fixedly arranged at the front end of the outer rotor. A driving wheel is fixedly arranged on a central rotating shaft in front of a driven wheel, and the driving wheel drives the driven wheel to synchronously rotate in a constant speed and reverse direction along with the rotation of the central rotating shaft. Two driving wheels are symmetrically arranged between the driving wheel and the driven wheel, and the two driving wheels are fixedly arranged on the shell through rotating shafts and bearings respectively. A heat radiation fan is arranged on the central rotating shaft behind the outer rotor.
Furthermore, the shell comprises a main body, a front cover plate and a rear cover plate, wherein center holes are formed in the front cover plate and the rear cover plate, and the front cover plate and the rear cover plate are respectively connected with the center rotating shaft through bearings. The front part of the main body is provided with two symmetrical mounting holes for mounting the driving wheel, and the top part of the main body is also provided with three external wiring terminals. Three electric brushes are arranged in the shell corresponding to the three external wiring terminals, and each electric brush is electrically connected with the three external wiring terminals respectively.
Furthermore, the outer rotor is equivalent to a stator of the existing generator, a power generation coil is arranged in the outer rotor, a front end cover and a rear end cover are respectively arranged at the front end and the rear end of the outer rotor, central holes are formed in the front end cover and the rear end cover, and the front end cover and the rear end cover are respectively connected with the central rotating shaft through bearings. A section of hollow shaft is welded on the outer edge of a central hole of a front end cover of the outer rotor, and a driven wheel is fixedly mounted at the front end of the hollow shaft. So that the driven wheel drives the outer rotor to rotate. And three conducting rings are arranged outside the outer rotor, the three conducting rings are respectively and electrically connected with three inner wiring terminals of the outer rotor, and the electricity generated by the outer rotor is led to the three conducting rings through the three inner wiring terminals.
Furthermore, the inner rotor is equivalent to the rotor of the existing generator and is arranged on a central rotating shaft in the outer rotor, and the outer surface of the outer rotor is provided with a permanent magnet.
Furthermore, the driving wheel is a sector gear, the outer diameter and the tooth number of the driving wheel are consistent with those of the driven wheel, the driving wheel is fixedly arranged on a central rotating shaft in front of the driven wheel, and the driving wheel drives the driven wheel to synchronously rotate at a constant speed and reversely rotate along with the rotation of the central rotating shaft.
Furthermore, the two driving wheels are sector gears and are symmetrically arranged between the driving wheel and the driven wheel, and the two driving wheels are fixedly arranged on the shell through rotating shafts and bearings respectively.
Furthermore, the conducting ring is annular, is tightly sleeved on the outer rotor and consists of a conducting coil and an insulating sleeve, and the insulating sleeve is arranged between the conducting coil and the outer rotor to prevent current from being transmitted to the outer rotor.
Furthermore, the electric brush is connected with the conducting ring in a sliding mode, and electricity generated by the engine is transmitted to the external terminal through the conducting ring and the electric brush and is led out through the external terminal.
The invention has the beneficial effects that: the outer rotor and the inner rotor of the double-rotor generator are driven to synchronously rotate at a constant speed in a forward and reverse direction through the driving wheel, the driving wheel and the driven wheel, so that the relative rotating speed of the outer rotor and the inner rotor of the generator is doubled, the generating efficiency of the generator is improved, and the application range is wide.
Description of the drawings:
fig. 1 is a schematic structural view of the present invention.
Fig. 2 is a schematic structural view of the housing of the present invention.
Fig. 3 is a schematic structural view of an outer rotor in the present invention.
FIG. 4 is a schematic diagram of a conductive ring according to the present invention.
In the figure: the device comprises a shell 1, a main body 1-1, a rear cover plate 1-2, a front cover plate 1-3, mounting holes 1-4, an outer rotor 2, an inner rotor 3, a central rotating shaft 4, a driving wheel 5, a driving wheel 6-7, a driven wheel 8, a heat dissipation fan 9, a conductive ring 10-1, an insulating sleeve 10-2, an external terminal 11, an electric brush 12, a front end cover 13, a rear end cover 14, a hollow shaft 15 and an internal terminal 16.
The specific implementation mode is as follows:
as shown in fig. 1, a permanent magnet generator with a positive and negative dual rotor comprises a housing 1, an outer rotor 2, an inner rotor 3, a central rotating shaft 4, a driving wheel 5, a driven wheel 8, transmission wheels 6-7 and a heat dissipation fan 9. The outer rotor 2 is arranged in the shell 1, the inner rotor 3 is arranged in the outer rotor 2, the inner rotor 3 is fixed on the central rotating shaft 4 and rotates along with the rotation of the central rotating shaft 4, the shell 1 and the outer rotor 2 are respectively installed on the central rotating shaft 4 through bearings, the outer rotor 2 rotates around the central rotating shaft 4, and the rotating direction of the outer rotor 2 is opposite to that of the inner rotor 3. A driven wheel 8 is fixedly mounted to the front end of the outer rotor 2. A driving wheel 5 is fixedly arranged on the central rotating shaft 4 in front of the driven wheel 8, and the driven wheel 8 is driven to synchronously rotate in the constant speed and reverse direction through driving wheels 6-7 along with the rotation of the central rotating shaft 4. Two driving wheels 6-7 are symmetrically arranged between the driving wheel 5 and the driven wheel 8, and the two driving wheels 6-7 are fixedly arranged on the shell 1 through rotating shafts and bearings respectively. A heat radiation fan 9 is installed on the central rotating shaft 4 behind the outer rotor 2. The inner rotor 3 is equivalent to the rotor of the existing generator and is arranged on a central rotating shaft 4 in the outer rotor 2, and the outer surface of the inner rotor 3 is provided with a permanent magnet. The driving wheel 5 is a sector gear, the outer diameter and the tooth number of the driving wheel are consistent with those of the driven wheel 8, the driving wheel is fixedly arranged on the central rotating shaft 4 in front of the driven wheel 8, and the driving wheel 6-7 drives the driven wheel 8 to synchronously rotate in the constant speed and reverse direction along with the rotation of the central rotating shaft 4. The driving wheels 6-7 are sector gears and are symmetrically arranged between the driving wheel 5 and the driven wheel 8, and the two driving wheels 6-7 are fixedly arranged on the shell 1 through rotating shafts and bearings respectively.
As shown in figure 2, the shell 1 is composed of a main body 1-1, a front cover plate 1-3 and a rear cover plate 1-2, wherein the front cover plate 1-3 and the rear cover plate 1-2 are provided with central holes, and the front cover plate 1-3 and the rear cover plate 1-2 are respectively connected with a central rotating shaft 4 through bearings. The front part of the main body 1-1 is provided with two symmetrical mounting holes 1-4 for mounting the driving wheels 6-7, and the top part of the main body 1-1 is also provided with three external wiring terminals 11. Three brushes 12 are provided inside the housing 1 corresponding to the three external wiring terminals 11, and each brush 12 is electrically connected to the three external wiring terminals 11.
As shown in fig. 3, the outer rotor 2 is equivalent to a stator of a conventional generator, and has a built-in power generation coil, a front end cover 13 and a rear end cover 14 are respectively disposed at the front end and the rear end of the outer rotor 2, the front end cover 13 and the rear end cover 14 are respectively provided with a central hole, and the front end cover 13 and the rear end cover 14 are respectively connected with the central rotating shaft 4 through bearings. A section of hollow shaft 15 is welded on the outer edge of a central hole of a front end cover 13 of the outer rotor 2, and a driven wheel 8 is fixedly arranged at the front end of the hollow shaft 15. So that the driven wheel 8 drives the outer rotor 2 to rotate. Three conductive rings 10 are arranged outside the outer rotor 2, the three conductive rings 10 are respectively electrically connected with three inner wiring terminals 16 of the outer rotor 2, and the electricity generated by the outer rotor 2 is led to the three conductive rings 10 through the three inner wiring terminals 16.
As shown in fig. 1 and 4, the conductive ring 10 is annular, tightly fitted on the outer rotor 2, and composed of a conductive coil 10-1 and an insulating sleeve 10-2, and the insulating sleeve 10-2 is located between the conductive coil 10-1 and the outer rotor 2 to prevent current from being transmitted to the outer rotor 2. The upper surface of the conductive coil 10-1 is connected with the brush 12 in a sliding manner, and the electricity generated by the engine is transmitted to the external terminal 11 through the conductive ring 10 and the brush 12 and then is led out through the external terminal 11.
The working principle is as follows: the clockwise rotation of the central rotating shaft 4 for inputting power drives the inner rotor 3 to rotate clockwise on one hand, and the clockwise rotation of the central rotating shaft 4 drives the driving wheel 5 to rotate clockwise on the other hand, and the driven wheel 8 rotates anticlockwise through the driving wheels 6-7. Because the driving wheels 6-7 and the outer rotor 2 are fixed into a whole, the driven wheel 8 drives the outer rotor 2 to rotate anticlockwise. The driving wheel 5, the driving wheels 6-7 and the driven wheel 8 drive the outer rotor 2 and the inner rotor 3 of the double-rotor generator to synchronously rotate at a constant speed, namely, rotate forwards and backwards, so that the relative rotating speed of the outer rotor 2 and the inner rotor 3 of the generator is doubled, and the generating efficiency and the generating capacity of the generator are improved. The problem of low power generation efficiency of wind power generation and tidal power generation is solved, and the power generation efficiency can be obviously improved particularly in the fields of wind power generation and tidal power generation. The invention is another great improvement of the existing generator and has epoch-making great significance for improving the efficiency of the generator.

Claims (5)

1. A permanent magnet generator with positive and negative double rotors is characterized in that: the outer rotor is arranged in the shell, the inner rotor is arranged in the outer rotor, the inner rotor is fixed on the central rotating shaft, the shell and the outer rotor are respectively arranged on the central rotating shaft through bearings, the outer rotor rotates around the central rotating shaft, the rotating direction of the outer rotor is opposite to that of the inner rotor, a driven wheel is fixedly arranged at the front end of the outer rotor, a driving wheel is fixedly arranged on the central rotating shaft in front of the driven wheel, the driven wheel is driven to synchronously rotate in a constant speed and reverse direction through the driving wheel, two driving wheels are symmetrically arranged between the driving wheel and the driven wheel, the two driving wheels are respectively fixedly arranged on the shell through rotating shafts and bearings, and the heat dissipation fan is arranged on the central rotating shaft behind the outer rotor.
2. The permanent magnet generator with dual rotors as claimed in claim 1, wherein: the shell comprises a main body, a front cover plate and a rear cover plate, wherein center holes are formed in the front cover plate and the rear cover plate, the front cover plate and the rear cover plate are respectively connected with a central rotating shaft through bearings, two symmetrical mounting holes are formed in the front portion of the main body and used for mounting a driving wheel, three external wiring terminals are further arranged at the top of the main body, three electric brushes are arranged inside the shell corresponding to the three external wiring terminals, and each electric brush is respectively electrically connected with the three external wiring terminals.
3. The permanent magnet generator with dual rotors as claimed in claim 1, wherein: the outer rotor is characterized in that a hollow shaft is welded on the outer edge of a center hole of a front end cover of the outer rotor, a driven wheel is fixedly mounted at the front end of the hollow shaft and drives the outer rotor to rotate, three conducting rings are arranged outside the outer rotor and are respectively and electrically connected with three inner wiring terminals of the outer rotor, and electricity emitted by the outer rotor is led to the three conducting rings through the three inner wiring terminals.
4. The permanent magnet generator with dual rotors as claimed in claim 1, wherein: the driving wheel is a sector gear, the outer diameter and the tooth number of the driving wheel are consistent with those of the driven wheel, the driving wheel is fixedly arranged on a central rotating shaft in front of the driven wheel, and the driving wheel drives the driven wheel to synchronously rotate at a constant speed and reversely rotate along with the rotation of the central rotating shaft.
5. The permanent magnet generator with dual rotors as claimed in claim 1, wherein: the two driving wheels are sector gears and are symmetrically arranged between the driving wheel and the driven wheel, and the two driving wheels are fixedly arranged on the shell through rotating shafts and bearings respectively.
CN201911026158.5A 2019-10-25 2019-10-25 Permanent magnet generator with positive and negative double rotors Pending CN110676997A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201911026158.5A CN110676997A (en) 2019-10-25 2019-10-25 Permanent magnet generator with positive and negative double rotors

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201911026158.5A CN110676997A (en) 2019-10-25 2019-10-25 Permanent magnet generator with positive and negative double rotors

Publications (1)

Publication Number Publication Date
CN110676997A true CN110676997A (en) 2020-01-10

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN201911026158.5A Pending CN110676997A (en) 2019-10-25 2019-10-25 Permanent magnet generator with positive and negative double rotors

Country Status (1)

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CN (1) CN110676997A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2022040823A1 (en) * 2020-08-31 2022-03-03 陆继荣 Movable balancing wind turbine for passenger train
CN114665680A (en) * 2022-03-31 2022-06-24 高彦霜 Generator power generation system with inner rotor and outer rotor rotating in opposite directions

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2022040823A1 (en) * 2020-08-31 2022-03-03 陆继荣 Movable balancing wind turbine for passenger train
CN114665680A (en) * 2022-03-31 2022-06-24 高彦霜 Generator power generation system with inner rotor and outer rotor rotating in opposite directions
CN114665680B (en) * 2022-03-31 2024-05-31 高彦霜 Generator generating system with inner rotor and outer rotor rotating reciprocally

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