CN114513097A - Single-phase and three-phase permanent magnet disc type brushless motor with armature as rotor and method - Google Patents
Single-phase and three-phase permanent magnet disc type brushless motor with armature as rotor and method Download PDFInfo
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- 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
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- 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
- H02K1/2793—Rotors axially facing stators
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K15/00—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines
- H02K15/04—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines of windings, prior to mounting into machines
- H02K15/0407—Windings manufactured by etching, printing or stamping the complete coil
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K3/00—Details of windings
- H02K3/04—Windings characterised by the conductor shape, form or construction, e.g. with bar conductors
- H02K3/28—Layout of windings or of connections between windings
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K3/00—Details of windings
- H02K3/46—Fastening of windings on the stator or rotor structure
- H02K3/47—Air-gap windings, i.e. iron-free windings
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- 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
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- 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
- H02K7/14—Structural association with mechanical loads, e.g. with hand-held machine tools or fans
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K2213/00—Specific aspects, not otherwise provided for and not covered by codes H02K2201/00 - H02K2211/00
- H02K2213/03—Machines characterised by numerical values, ranges, mathematical expressions or similar information
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Abstract
The invention relates to a single-phase and three-phase permanent magnet disc type brushless motor with an armature as a rotor and a method. In particular to a coreless armature rotor disc structure which is composed of coils and has high power density, high rotating speed, high efficiency and low rotational inertia, small mass and no resistance to rotation. A group of main coils are packaged in the armature rotor, so that the rotational inertia of the rotor is greatly reduced. The leads at the two ends of the coil are respectively connected with the end surfaces at the two ends of the hollow rotor shaft and are externally connected in a current collecting mode through the current collecting sheet. The characteristics that the center of the end face of the rotor shaft is fixed, the angular speed is low, and the absolute center point is free from rotating abrasion are utilized, so that long-life collecting type power transmission is realized, the problem that the service life of a high-speed brush or collecting ring of a motor with tens of thousands of revolutions and hundreds of thousands of revolutions is short is effectively solved, the contact abrasion of a conducting rod and a collecting piece is extremely small, and the service life of the motor is prolonged by more than thousands of hours. The novel energy automobile can be accelerated quickly, and the novel energy automobile is also suitable for electric bicycles, electric wheelchairs or wind power generation.
Description
Technical Field
The invention relates to a permanent magnet disc type brushless motor, in particular to a disc type motor with an armature as a rotor.
Background
The disk type permanent magnet motor is short in axial size, compact in structure and thin pancake-shaped in appearance, and mainly comprises a stator and a rotor disk. Generally, the stator of the existing brushless motor is an armature disk, which is a stator without an iron core, and a rotor disk is formed by an iron yoke disk and a permanent magnet, so that the mass is large, the rotational inertia is large, the machining size and the mass of parts are inconsistent, the dynamic balance difficulty is large, and the cost is high. The disk motor armature coil space is limited, and how to wind a plurality of turns in the limited space is a contradiction to be solved.
The disc type permanent magnet motor has the advantages of light weight, small loss, high efficiency and the like, and can not be replaced in some fields. However, the permanent magnets are expensive, and how to use the spacing gap and reduce the cost by using less permanent magnets. And the size of the disc type permanent magnet motor cannot be made large, so that the power is generally low, and if the disc type permanent magnet motor is made large, the rotating speed is improved.
The existing permanent magnet disc type brushless motor rotor has the following defects: the rotor is composed of a permanent magnet and an iron yoke, the rotary inertia is large, the starting time delay is long, the manufacturing dynamic balance difficulty is large, the rotating speed is difficult to break through and is basically below ten thousand revolutions, and the service life of tens of thousands of revolutions and hundreds of thousands of revolutions even if a collecting ring mode is adopted is short. New energy automobile need accelerate fast, and the traditional iron core motor rotor quality reaches dozens of kilograms, accelerates to tens of thousands of commentaries on classics and consumes energy huge, and the time is longer.
The graphene superconducting technology is developed, graphene is generated on the surface of a large-area copper plate, the cost is low, and if the graphene superconducting technology is applied to the field of motors, the motor efficiency is greatly improved.
The traditional high-speed motor mostly adopts a two-stage planetary reducer, mostly a sun gear is meshed with 3 planetary gears, and the gears are all external gears, so that the defects of small tooth number interference, large noise of the external gears, more parts, high cost and the like exist.
Disclosure of Invention
The invention aims to provide a single-phase and three-phase permanent magnet disc type brushless motor which has high power density, high rotating speed, high efficiency and low rotational inertia and takes an armature disc consisting of coils as a rotor.
Particularly, the structure of the armature rotor disc without the iron core is adopted, the mass is small, the resistance is avoided during rotation, and the rotational inertia of the rotor is greatly reduced. The permanent magnet disc type motor is a generator and a motor.
The armature plate of the motor is a rotor, and the armature coil leads are connected to two ends of a hollow shaft of the motor by adopting a method, so that the leading-out power transmission is realized. The invention discloses a rotor, which is characterized in that a hollow shaft structure is adopted by a rotor, two end faces are arranged at two ends of the shaft, and each end face is provided with a central fixed point.
In particular to two conductive rods arranged at two ends in a hollow shaft. The contact rod is provided with a contact end face with a round diameter by end turning, and then an excircle of the end is turned. The collector plate is provided with a certain thickness, the collector plate is provided with a blind hole, and the aperture is larger than the outer circular diameter of the end head of the conductive rod. The end of the current conducting rod is inserted into the current collecting sheet hole, and conductive paste is arranged in the hole and at the gap between the end of the current conducting rod and the excircle. The resistance of the conductive paste is extremely low, and the rotating contact abrasion of the conductive rod is changed into a liquid lubrication abrasion-free power transmission state.
At least one group of main coils are packaged in the armature rotor, conductive rods are arranged on two end faces of the rotor hollow shaft respectively, at least two leads of the main coils are connected to the conductive rods respectively, and the conductive rods are axially and electrically connected by collector plates in a crimping mode, so that the fixed-point power transmission of the center of the rotor shaft is realized.
When the motor is static, the conductive rod is axially contacted with the current collecting plate, the current collecting plate is suspended and flown by the conductive paste when the motor rotates at a high speed, and the conductive rod and the current collecting plate are in a liquid lubrication abrasion-free power transmission state under the action of the conductive paste.
The main coil realizes long-life current collection type power transmission by utilizing the characteristics that the center of the end face of the hollow shaft is fixed, the angular speed is low, and even the absolute central point has no rotary abrasion, effectively solves the problem that the service life of a current collector or a conducting ring of a motor with tens of thousands of revolutions and hundreds of thousands of revolutions is short, ensures that the contact abrasion of a conducting rod and a current collecting piece is extremely small, and realizes the purpose of prolonging the service life of the motor by more than thousands of hours.
Furthermore, the armature is provided with at least two groups of coils, a group of secondary coils are arranged in the armature rotor, the main coil and the auxiliary coils are arranged in a phase difference mode, the secondary coils are provided with a conducting wire which is connected to a conducting ring coaxially arranged at one end of the hollow shaft, and then the current collectors are electrically connected to transmit power. And the conducting paste is coated on the conducting ring, so that the rotating abrasion of the contact part of the conducting ring and the current collector is changed into a liquid lubrication abrasion-free power transmission state.
The auxiliary coil and the main coil are arranged in a phase difference mode at a phase angle of 90 degrees, at least one lead is connected to a conducting ring at the outer circle of one end in the hollow shaft of the motor, and then the conducting ring is led out through a current collector to transmit electricity; the other conducting wire is connected with the main coil. The secondary coil plays a role in zero-crossing auxiliary starting, when the motor works at a full load after starting, the secondary coil does not work, and the motor still belongs to a single-phase motor.
Further, the armature plate is in a wave winding shape formed by processing a piece of copper plate and serves as a main coil. The main coil is formed by cutting and stacking two copper plates, a tap is arranged in the middle of the main coil, and then a group of secondary coils are connected, so that the main coil has two sections which can be called as an A-phase coil and a B-phase coil respectively, and the secondary coils are called as C-phase coils; at least one wire of the secondary coil is connected with the conducting ring arranged at one end of the hollow shaft to form a star connection method of the three-phase motor, so that the three-phase brushless motor is realized.
The motor can work in a one-phase or three-phase state, namely a single-phase or three-phase motor.
Furthermore, the C-phase coil is thin, has small current and is connected to the conducting ring through the axial and radial directions. The AB phase coil occupies more than 80% of the slot area respectively. The area of the slot occupied by the framework and the C-phase coil is less than 20 percent. Thus, when the main coil permanent magnet does work in the space of high-density magnetic lines; the secondary coil is just at the permanent magnet spacing. The technology realizes cost saving by using less permanent magnets, can ensure that a certain gap is reserved in the main coil in the limited air gap of the coreless disk type motor for the use of the auxiliary coil and the framework, and is convenient for production and manufacture. The motor normally works at 1/3-2/3 of power, and the working efficiency is highest; and (4) short-time full-power operation, such as starting and climbing of the vehicle.
Furthermore, the auxiliary coil plays a role in starting or full load work, when the motor does not work at full load after starting, the auxiliary coil does not work, the motor still only works through the main coil, only fixed-point power transmission is carried out at the centers of two ends of the rotor shaft, and long-service-life collecting type power transmission is achieved.
The permanent magnet disc type motor has the advantages that the distance between the permanent magnets is larger than 7mm, namely, the length of the permanent magnets is larger than 2 air gaps, N, S poles are alternately and uniformly distributed around one circle, and an axial magnetic field magnetic circuit structure is formed by the permanent magnets and the iron yoke on the opposite side. The permanent magnets are arranged at intervals, so that the consumption of expensive permanent magnets is saved, and the mutual magnetic flux leakage of adjacent opposite magnets is avoided.
The invention enables the main coil, namely a single-phase motor to meet the workload of more than 80 percent, effectively utilizes the high-density magnetic flux area of the permanent magnet, realizes the main coil winding to work on a high-efficiency curve and realizes the economy of the motor design.
The invention adopts the structure of the brushless disk type motor with an axial magnetic circuit to realize high torque-weight ratio. The sheet armature coil is used as a rotor, and the conducting wires are creatively led out from the centers of two end faces of a motor shaft to be electrically connected. The rotor has no iron core and no magnet, and low rotational inertia is realized.
The two ends of the motor shaft are provided with the outgoing lines, so that high rotating speed and high power are realized, and the reduction mechanism with the pinion and the inner gear ring is arranged, so that the output or input mechanism can be avoided at the two ends of the motor shaft while high speed ratio is realized. If the wind driven generator is used for wind power generation, the wind impeller is low in rotating speed, and the rotor is pushed to rotate at a high speed by large torque through the efficient inner gear ring, so that a small motor can generate high-power electricity; and the electric bicycle and the electric automobile are used for driving the wheel.
And a wire is led out from the end head of the output shaft of the motor and bypasses through the cup structure of the inner gear ring to connect a wire terminal on the stator shell, so that the interference of gears is avoided.
The motor armature plate is formed by cutting and processing a metal plate, preferably a copper plate, and has the advantages of low armature resistance, high production efficiency, no need of motor winding equipment and low manufacturing cost. The side surface of the armature plate is not provided with the thickness of an insulating layer or the thickness of a package, and the conductor is exposed, has good heat dissipation performance and can resist the high temperature of 500 ℃.
According to the armature copper plate disclosed by the invention, the surface is synthesized into the composite superconducting material by adopting a graphene generation technology, so that the resistance is effectively reduced, and the super copper state with the electric conductivity (IACS) as high as 116-118% is realized. And cutting the copper plate to obtain the wave winding coil. Taking a single-phase motor as an example: the armature plate is cut into a plurality of windings by a layer of copper plate, the assembled disc type motor has lower price and high efficiency, and is very suitable for being applied to bicycles, scooters and wheelchairs on a large scale.
The rotor disc is free of magnetic conductive metal materials and only provided with conductors, so that the rotor disc is small in mass and small in high-speed rotating inertia.
The main winding and the auxiliary winding are arranged in a phase difference mode at a phase angle of 90 degrees or a phase angle of 180 degrees, the problem that the zero dead angle of the single-phase motor cannot be started is solved, and the main winding and the auxiliary winding respectively have different voltages, power isolation, zero-phase starting, double-voltage power generation or one motor and one power generation.
The invention adopts small volume and high rotating speed to realize high-power output or power generation of the motor. The motor can work in ten thousand or tens of thousands of revolutions. The motor of the invention adopts a two-stage reducer structure, and the reduction ratio is 10-100 times, so as to meet the requirement of low rotating speed of electric wheels or wind blades.
Specifically, a pinion is arranged on the rotor shaft, an inner gear ring is rotationally arranged on the stator, and the pinion is meshed with the inner gear ring to form primary speed reduction; the outer gear arranged on the primary inner gear ring is meshed with a secondary inner gear ring rotatably arranged on the stator to form secondary speed reduction, and the electric wheel is fixed outside the secondary inner gear ring.
A pinion is arranged on the rotor shaft, an inner gear ring is rotationally arranged on the stator, and the pinion is meshed with the inner gear ring to form primary speed reduction; the outer gear arranged on the primary inner gear ring is meshed with a secondary inner gear ring rotatably arranged on the stator to form secondary speed reduction, and the wind power generation blades are fixed outside the secondary inner gear ring.
The invention has the following beneficial effects:
1. only the rotor consisting of the coils has small mass and small rotational inertia, and is suitable for rapid reciprocating motion such as a mechanical arm;
2. the permanent magnets are arranged at intervals, so that the consumption of expensive materials is saved;
3. the conductive rod in the hollow shaft and the current collecting sheet are electrically connected for power transmission, so that the rotary motor is free of resistance and long in service life;
4. the pinion is meshed with the inner gear ring to form the speed reducing mechanism, so that the cost is low, and the speed changing efficiency is high;
5. the coil is formed by cutting a super copper plate, so that the cost is low and the motor efficiency is high;
6. the winding main coil and the secondary coil can meet two different voltage requirements of wind power generation.
Drawings
The invention is further described with reference to the following figures and detailed description:
fig. 1 is a sectional view of a permanent magnet disc type brushless motor according to the present invention;
FIG. 2 is a schematic diagram of a current collection connection of a hollow shaft of a permanent magnet disc type brushless motor according to the present invention;
fig. 3 is a schematic diagram of a single-phase winding main coil of a permanent magnet disc brushless motor according to a first embodiment of the present invention;
fig. 4 is a schematic diagram of a single-phase winding and a secondary coil of a permanent magnet disc type brushless motor according to a second embodiment of the present invention;
fig. 5 is a wiring diagram of a single-phase winding and a secondary line of a permanent magnet disc type brushless motor according to a second embodiment of the present invention;
fig. 6 is a schematic diagram of a three-phase winding coil of a permanent magnet disc type brushless motor according to a third embodiment of the present invention;
fig. 7 is a wiring diagram of three-phase windings of a permanent magnet disc type brushless motor according to a third embodiment of the present invention;
fig. 8 is a sectional view of a two-stage reduction mechanism of a permanent magnet disc type brushless motor according to a fourth embodiment of the present invention;
fig. 9 is a sectional view of a secondary speed increasing mechanism of a wind power generation permanent magnet disc type motor according to a fifth embodiment of the present invention.
In the figure: 1. an armature rotor; 2. a main coil; 3. a hollow shaft; 4. a conductive rod; 5. a current collecting plate; 6. conducting rings; 7. a current collector; 8. a conductive paste; 9. a pinion gear; 10. a primary annular gear; 11. a secondary annular gear; 12. a permanent magnet; 13. a stator; 14. a wheel; 15. a fan blade; 16. and a secondary coil.
Detailed Description
As shown in fig. 1-2, the armature rotor adopts a coreless structure and is encapsulated by coils to form a disk structure. The motor rotor shaft is a hollow pipe and comprises a bar slotting and is also called a hollow shaft. Two conductive rods are coaxially and respectively arranged at the centers of two ends in the hollow shaft.
The conducting rod is turned by an end head to form a contact end face with the diameter of about 2-20mm, and then an outer circle with the end head diameter of about 2-20mm is turned; the conducting rod of the micro-motor can adopt a needle tip head structure. The conducting rod is coaxially encapsulated in the hollow shaft.
The collector plate is provided with a certain thickness, the collector plate is provided with a blind hole, and the aperture is larger than the outer circular diameter of the end head of the conductive rod. The end of the current conducting rod is inserted into the current collecting sheet hole, and conductive paste is arranged in the hole and at the gap between the end of the current conducting rod and the excircle. The conductive paste is silver paste, the resistance is extremely low, the contact abrasion of the rotating contact of the conductive rod can be changed into a liquid lubrication abrasion-free power transmission state, and the current of several amperes to several ten ampere times can be borne.
Two wires of the main coil are respectively connected to the conductive rods; the axial direction of the conducting rod is connected electrically by the collector plate in a crimping way, so that the fixed-point power transmission of the center of the rotor shaft is realized. When the motor is static, the conductive rod is axially contacted with the current collecting plate, the current collecting plate is suspended and flown by the conductive paste when the motor rotates at a high speed, and the conductive rod and the current collecting plate are in a liquid lubrication abrasion-free power transmission state under the action of the conductive paste.
Example one
As shown in fig. 3, a set of main coils is encapsulated in the armature rotor, two wires of the coils penetrate into holes in the middle section of the hollow shaft and are respectively connected to the conductive rods arranged at two ends of the hollow shaft, so that a single-phase permanent magnet disc type motor structure with a single-phase winding is realized.
Example two
As shown in fig. 4 to 5, the armature rotor disk is provided with a set of main coils, and a set of sub-coils arranged with a phase difference of 90 ° from the main coils. The two wires of the main coil are called A, B junction points. The secondary coil is provided with a lead which penetrates into the hollow shaft and is connected to the coaxially arranged conducting ring; the other wire is connected with the main coil B junction. The secondary coil plays a role in zero-crossing auxiliary starting. The single-phase permanent magnet disc type motor structure without the starting dead zone with auxiliary starting is realized. The secondary winding occupies no more than 1/3 space in the slot.
Furthermore, the support shaft at the position of the conductive ring can be thinned, so that the outer diameter of the conductive ring is reduced, and the linear speed is reduced. And the conducting paste is coated on the conducting ring, so that the rotating abrasion of the contact part of the conducting ring and the current collector is changed into a liquid lubrication abrasion-free power transmission state.
EXAMPLE III
As shown in fig. 6 to 7, the main coil is a double-layered armature structure formed by stacking a coil structure cut from two copper plates. The middle tap joint of the main coil is a point o, and then is connected with a lead at one end of a group of secondary coils, so that the main coil has two sections which can be respectively called as an A-phase coil and a B-phase coil; the secondary coil is called a C-phase coil.
At least one lead of the secondary coil penetrates into the hollow shaft, is connected to a conducting ring coaxially arranged at one end of the shaft, and is connected with a current collector in a current collecting mode to transmit electricity. The motor coils form a standard star-type three-phase connection method, and a three-phase brushless motor is realized.
Example four
As shown in fig. 8, in the permanent magnet disc brushless motor, two shafts are fixed on a motor housing, and bearings are sleeved on the shafts, and internally toothed ring gears are respectively installed on the shafts to form a two-stage speed reduction mechanism. Specifically, a pinion is provided on the rotor shaft. The pinion is meshed with the inner gear ring to form primary speed reduction.
And an outer gear is arranged on one side of the primary inner gear ring. The external gear of the first-stage speed reduction is meshed with a second-stage inner gear ring rotatably arranged on the stator to form second-stage speed reduction.
The secondary inner gear ring is fixedly connected with a rim of the electric vehicle. And a wire extending out of one end of the output shaft of the motor passes through the cup cover formed by the inner gear ring and is connected to the terminal of the stator shell in a roundabout manner.
The high-speed permanent magnet disc type brushless motor drives wheels through the secondary speed reducing mechanism to realize the electric wheel type direct drive of electric automobiles, electric bicycles and wheelchairs.
EXAMPLE five
As shown in fig. 9, the wind power generation permanent magnet disc type motor is provided with a two-stage speed increasing mechanism.
The rotor shaft is provided with a pinion, the stator of the motor shell is rotatably provided with an inner gear ring, and the pinion is meshed with the inner gear ring to form primary speed reduction. And an outer gear is arranged on one side of the primary inner gear ring. The external gear of the first-stage speed reduction is meshed with a second-stage inner gear ring rotatably arranged on the stator to form second-stage speed reduction. The speed reduction actually plays a role in speed increase, so that the low-rotation-speed fan blade can drive the armature rotor to rotate at a high speed, and the small motor can generate high-power electricity. Compared with the traditional wind power generation motor, the mass is reduced by several times, and the cost is lower.
The secondary inner gear ring is fixedly connected with the fan blades. And a wire extending out of one end of the output shaft of the motor passes through the cup cover formed by the inner gear ring and is connected to the terminal of the stator shell in a roundabout manner.
The two ends of the motor shaft are provided with the outgoing lines, so that high rotating speed and high power are realized, and the reduction mechanism with the pinion and the inner gear ring is arranged, so that the output or input mechanism can be avoided at the two ends of the motor shaft while high speed ratio is realized. For wind power generation, the fan blades are long, and two motor leads are arranged on one side of the wind impeller.
According to the armature copper plate disclosed by the invention, the surface is synthesized into the composite superconducting material by adopting a graphene generation technology, so that the resistance is effectively reduced, and the super copper state with the electric conductivity (IACS) as high as 116-118% is realized. And cutting the copper plate to obtain the wave winding coil. Taking a single-phase motor as an example: the armature plate is cut into a plurality of turns of windings in a layer of copper plate.
Claims (10)
1. A method for manufacturing a permanent magnet disc type motor with an armature as a rotor is characterized in that: the armature plate is a rotor, and the armature coil leads are connected to two ends of a hollow shaft of the motor by adopting a method, so that the leading-out power transmission is realized.
2. A disc motor according to claim 1, characterized in that: the armature has at least two groups of coils, at least one conducting wire is connected to the conducting ring at the excircle of one end in the hollow shaft of the motor, and then the conducting ring is led out through the current collector to transmit electricity.
3. The utility model provides an armature is permanent magnetism disk brushless motor of rotor, includes main coil, hollow shaft, collector bar, current collecting plate, its characterized in that: at least one group of main coils is packaged in the armature rotor, conducting rods are respectively arranged on two end faces of the rotor hollow shaft, at least two conducting wires of the main coils are respectively connected to the conducting rods, and the conducting rods are axially and electrically connected by a collector plate in a compression joint mode, so that fixed-point power transmission of the center of the rotor shaft is achieved.
4. A disc motor according to claim 3, characterized in that: the end of the conducting rod is inserted into the collector plate hole, and a conducting paste is arranged in the hole and at the position of a gap between the conducting rod and the excircle of the end of the conducting rod, so that the rotating contact abrasion of the conducting rod is changed into a liquid lubricating abrasion-free power transmission state.
5. A disc motor according to claim 3, characterized in that: a group of secondary coils are arranged in the armature rotor, the primary coil and the secondary coil are arranged in a phase difference mode, the secondary coil is connected to a conducting ring coaxially arranged at one end of the hollow shaft through a conducting wire, and then electricity is transmitted through the current collectors.
6. A disc motor according to claim 3, characterized in that: the middle tap of the main coil is connected with a group of secondary coils, so that the main coil has two sections which are called phase A and phase B coils respectively, and the secondary coils are called phase C coils; at least one wire of the secondary coil is connected with the conducting ring arranged at one end of the hollow shaft to form a star connection method of the three-phase motor.
7. A disc motor according to claim 3, characterized in that: the armature plate is in a wave winding shape formed by processing a copper plate and is used as a main coil.
8. A disc motor according to claim 3, characterized in that: a pinion is arranged on the rotor shaft, an inner gear ring is rotationally arranged on the stator, and the pinion is meshed with the inner gear ring to form primary speed reduction; one side of the primary inner gear ring is provided with an outer gear; the external gear is meshed with a secondary inner gear ring rotatably arranged on the stator to form secondary speed reduction, and wheels are fixed outside the secondary inner gear ring.
9. A disc motor according to claim 3, characterized in that: a pinion is arranged on the rotor shaft, an inner gear ring is rotationally arranged on the stator, and the pinion is meshed with the inner gear ring to form primary speed reduction; the outer gear arranged on the primary inner gear ring is meshed with a secondary inner gear ring rotatably arranged on the stator to form secondary speed reduction, and the wind power generation blades are fixed outside the secondary inner gear ring.
10. A disc motor according to any one of claims 3-9, characterized in that: the armature is made of super copper by processing a copper plate, and a layer of copper plate is cut into a plurality of coils.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210127499.7A CN114513097A (en) | 2022-02-10 | 2022-02-10 | Single-phase and three-phase permanent magnet disc type brushless motor with armature as rotor and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210127499.7A CN114513097A (en) | 2022-02-10 | 2022-02-10 | Single-phase and three-phase permanent magnet disc type brushless motor with armature as rotor and method |
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| Publication Number | Publication Date |
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| CN114513097A true CN114513097A (en) | 2022-05-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210127499.7A Pending CN114513097A (en) | 2022-02-10 | 2022-02-10 | Single-phase and three-phase permanent magnet disc type brushless motor with armature as rotor and method |
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| CN112803641A (en) * | 2021-02-22 | 2021-05-14 | 苏州诺雅电动车有限公司 | Permanent magnet disc type motor and rotor assembly mounting method |
| CN112910207A (en) * | 2021-02-25 | 2021-06-04 | 西北工业大学 | Double-stator single-rotor disc type motor |
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2022
- 2022-02-10 CN CN202210127499.7A patent/CN114513097A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5723925A (en) * | 1995-05-15 | 1998-03-03 | Toyota Jidosha Kabushiki Kaisha | Superconductor motor provided with superconductor shield |
| CN101447725A (en) * | 2008-04-28 | 2009-06-03 | 刘盛荣 | Side sensing permanent magnet DC motor |
| CN101764489A (en) * | 2010-02-04 | 2010-06-30 | 天津大学 | Disc type permasyn motor for electric car hub |
| US20150214824A1 (en) * | 2012-09-17 | 2015-07-30 | Guina Research And Development Pty Ltd | Electromagnetic turbine |
| CN110474493A (en) * | 2019-07-18 | 2019-11-19 | 中国科学院深圳先进技术研究院 | Synchronous electro-magnetic motor and its application |
| CN112803641A (en) * | 2021-02-22 | 2021-05-14 | 苏州诺雅电动车有限公司 | Permanent magnet disc type motor and rotor assembly mounting method |
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