CN218473009U

CN218473009U - Synchronous non-magnetic motor with excitation winding mechanism

Info

Publication number: CN218473009U
Application number: CN202222031993.1U
Authority: CN
Inventors: 科兹洛夫·伊利亚·尼古拉耶维奇; 谢军
Original assignee: Houhua Tianjin Power Technology Co ltd
Current assignee: Houhua Tianjin Power Technology Co ltd
Priority date: 2022-08-03
Filing date: 2022-08-03
Publication date: 2023-02-10
Anticipated expiration: 2032-08-03

Abstract

The utility model discloses a synchronous no magnetism motor with excitation winding mechanism, which comprises a housin, a plurality of groups rotor and stator, a plurality of groups rotor equidistance is installed in the inside of casing, and the stator sets up to cylindrically, and the stator sets up in the inside of a plurality of groups rotor, and it is rotatory to revolve around the center pin that a plurality of groups rotor formed, and the inside diode bridge that is provided with of casing, and electric connection has the rotary cylinder transformer on the diode bridge, the utility model discloses a fixed surface of outer loop installs on a plurality of groups rotor, and around being equipped with first toroidal winding on the first U-shaped iron core, the fixed surface of inner ring installs on the stator, around the design that is equipped with second toroidal winding on the second U-shaped iron core, the outer loop, first U-shaped iron core and first toroidal winding have constituteed primary, and the inner ring, second U-shaped iron core and second toroidal winding have constituteed secondary winding, and secondary winding carries out wireless power transmission with replacing the brush function for the static part rotation of primary winding, has avoided spark and has come.

Description

Synchronous non-magnetic motor with excitation winding mechanism

Technical Field

The utility model relates to the technical field of motors, specifically be a synchronous no magnetism motor with excitation winding mechanism.

Background

An electric motor is a device that converts electrical energy into mechanical energy. The electromagnetic power generator utilizes an electrified coil (namely a stator winding) to generate a rotating magnetic field and acts on a rotor to form magnetoelectric power rotating torque. Motors are classified into dc motors and ac motors, known as ac and dc motors, depending on the power source used. The disadvantage of these machines is that the magnetic field is pulsating and acceptable characteristics can only be obtained by rotating the magnetic field. Furthermore, "sticking" is observed — when the stator teeth are opposite the rotor poles, this is a stable position. It is extremely difficult to get the motor out of this state.

In addition, the dc motor has the disadvantages that the permanent magnet exists on the rotor, the permanent magnet is likely to be demagnetized when the current is too large, which affects the use of the motor, and the brush in the motor is easy to generate sparks and wear during operation, so that the motor needs to be replaced frequently, so we need to provide a synchronous nonmagnetic motor with an excitation winding mechanism.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a synchronous no magnetism motor with excitation winding mechanism replaces the permanent magnet through being provided with excitation winding, improves the reliability to be provided with the rotary cylindrical transformer and replace the brush, avoid the spark of production, with the problem of proposing in solving above-mentioned background art.

In order to achieve the above purpose, the utility model provides a following technical scheme: the utility model provides a synchronous no magnetism motor with excitation winding mechanism, includes casing, a plurality of group's rotor and stator, and a plurality of group's rotor equidistance is installed in the inside of casing, and the stator sets up to cylindrical, and the stator sets up in the inside of a plurality of group's rotors, and it is rotatory around the center pin that a plurality of group's rotors formed, and the casing is inside to be provided with the diode bridge, and electric connection has the rotary cylinder transformer on the diode bridge.

Preferably, the plurality of groups of rotors comprise rotor teeth and excitation windings, the rotor teeth are fixedly arranged in the shell, and the excitation windings are respectively wound on the plurality of groups of rotor teeth.

Preferably, a plurality of groups of stator teeth are equidistantly arranged on the stator, and a stator winding is wound on each group of stator teeth.

Preferably, a through hole is formed in the center of the stator, and a rotating shaft is fixedly mounted inside the through hole.

Preferably, the number ratio of the plurality of groups of rotor teeth to the plurality of groups of stator teeth is 3.

Preferably, the method is characterized in that: the rotary cylindrical transformer comprises an outer ring, an inner ring, a first U-shaped iron core, a second U-shaped iron core, a first annular winding and a second annular winding, the surface of the outer ring is fixedly installed on a plurality of groups of rotors, the first U-shaped iron core is fixedly installed on the inner wall of the outer ring, the first annular winding is wound on the first U-shaped iron core, the inner ring is arranged inside the outer ring, the surface of the inner ring is fixedly installed on a stator, the second U-shaped iron core is fixedly installed on the inner ring, and the second annular winding is wound on the second U-shaped iron core.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the utility model discloses a design around being equipped with excitation winding on the rotor tooth, enlarge the application scope of well low power motor, because the permanent magnet is by heavy current demagnetization, when replacing the permanent magnet with excitation winding, the reliability of motor can improve, can also carry out speed control through changing exciting current.

2. The utility model discloses a fixed surface of outer loop installs on a plurality of groups rotor, first U-shaped iron core fixed mounting is on the inner wall of outer loop, and around being equipped with first annular winding on the first U-shaped iron core, the inner ring sets up the inside with the outer loop, and the fixed surface of inner ring installs on the stator, second U-shaped iron core fixed mounting is on the inner ring, and around the design that is equipped with second annular winding on the second U-shaped iron core, the outer loop, primary winding has been constituteed to first U-shaped iron core and first annular winding, the inner ring, secondary winding has been constituteed to second U-shaped iron core and second annular winding, secondary winding and the partly of its magnetic circuit carry out wireless power transmission for primary winding static part rotation and replace the brush function, spark and the wearing and tearing that the brush brought have been avoided.

Drawings

Fig. 1 is a schematic structural view of the present invention;

fig. 2 is a cross-sectional view of the present invention;

fig. 3 is a schematic structural view of the rotary cylindrical transformer of the present invention;

fig. 4 is a schematic circuit diagram of the present invention.

In the figure: 1. a housing; 2. a rotor; 3. a stator; 4. a diode bridge; 5. a rotating cylindrical transformer; 6. rotor teeth; 7. an excitation winding; 8. stator teeth; 9. a stator winding; 10. a through hole; 11. a rotating shaft; 12. an outer ring; 13. an inner ring; 14. a first U-shaped iron core; 15. a second U-shaped iron core; 16. a first loop winding; 17. a second ring winding; 18. a transistor module; 19. a control system; 20. a storage battery; 21. an inverter.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-4, the present invention provides a technical solution: the utility model provides a synchronous no magnetism motor with excitation winding mechanism, which comprises a housin 1, a plurality of groups rotor 2 and stator 3, a plurality of groups rotor 2 equidistance are installed in the inside of casing 1, a plurality of groups rotor 2 include rotor tooth 6 and excitation winding 7, 6 fixed mounting in the inside of casing 1 of rotor tooth, excitation winding 7 is around locating on a plurality of groups rotor tooth 6 respectively, through the aforesaid design, use excitation winding 7 to replace the permanent magnet, can effectively avoid the too big permanent magnet demagnetization of electric current, influence the motor operation, and can also carry out speed control through changing exciting current.

Stator 3 sets up to cylindrical, and stator 3 sets up in the inside of a plurality of groups rotor 2, and it is rotatory around the center pin that a plurality of groups rotor 2 formed, and a plurality of groups stator tooth 8 are installed to the equidistance on the stator 3, all around being equipped with stator winding 9 on a plurality of groups stator tooth 8, through the aforesaid design, after stator 3 circular telegram, produce magnetic energy moment around stator winding 9 established on the stator tooth 8, and drive rotor 2 is rotatory has reached the function that drives other objects rotation.

Through-hole 10 has been seted up to stator 3's center department, and the inside fixed mounting of through-hole 10 has rotation axis 11, and a plurality of groups rotor teeth 6 and a plurality of groups stator teeth 8 quantity ratio are 3, all are provided with hall sensor on a plurality of groups stator teeth 8, and through the above-mentioned design, hall sensor can effectively detect out the stator winding 9 that is currently in operating condition and relay for it, otherwise, can be with the stator winding 9 outage that is in unoperated state to improve the energy-conserving effect of generator.

The inside diode bridge 4 that is provided with of casing 1, excitation winding and diode bridge electric connection, electric connection has rotary cylindrical transformer 5 on the diode bridge 4, and through above-mentioned design, excitation winding 7 can obtain invariable excitation voltage through diode bridge 4 to be connected to the output of the half winding of rotary cylindrical transformer 5, and the input of the half winding of rotary cylindrical transformer 5 is provided alternating voltage by the dc-to-ac converter 21 that links to each other with the battery.

The rotary cylindrical transformer 5 comprises an outer ring 12, an inner ring 13, a first U-shaped iron core 14, a second U-shaped iron core 15, a first annular winding 16 and a second annular winding 17, wherein the surface of the outer ring 12 is fixedly installed on a plurality of groups of rotors 2, the first U-shaped iron core 14 is fixedly installed on the inner wall of the outer ring 12, the first annular winding 16 is wound on the first U-shaped iron core 14, the inner ring 13 is arranged inside the outer ring 12, the surface of the inner ring 13 is fixedly installed on the stator 3, the second U-shaped iron core 15 is fixedly installed on the inner ring 13, the second annular winding 17 is wound on the second U-shaped iron core 15, and by means of the design, the outer ring 12, the first U-shaped iron core 14 and the first annular winding 16 form a primary winding, the inner ring 13, the second U-shaped iron core 15 and the second annular winding 17 form a secondary winding, the secondary winding and a part of the secondary winding rotate relative to the static part of the primary winding to perform wireless power transmission to replace a brush function, and magnetic circuits and abrasion caused by a brush are avoided.

When the windings of the stator 3 are supplied by a constant voltage source, by means of the transistor module 18, and for the machine to operate effectively in motoring mode, when the armature is the stator 3, the inductor is the rotor 2, at each instant by means of a sensor, the transistor module 18 controlled by the control system 19 must be supplied from the constant voltage source by the two phases of the stator windings 9, the central axis of the coil assembly being closer to the axis of the gap between the rotor teeth 6 that are closest in the direction of rotation, the polarity of the stator windings 9 being switched so that the poles of the stator 3 are attracted to the next pole of the rotor 2, the greatest electromagnetic force acting on the teeth of the two phases during the rotation. When using hall sensors as the sensing elements of the rotor position sensor associated with the control system 19, the hall sensors can be placed between the stator 3 and the rotor 2, on the side of the stator 3 facing the poles of the rotor 2, directly in the primary working air gap between the tooth crowns. In this case, no additional magnetic system needs to be created for the rotor position sensor. It should be noted that the reverse current diodes of the transistor modules 18 allow the circuit to operate in generator mode, and that the rotor windings may be connected in star or delta for battery charging.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a synchronous no magnetism motor with excitation winding mechanism, includes casing (1), a plurality of group's rotor (2) and stator (3), its characterized in that: a plurality of groups of rotors (2) equidistance are installed in the inside of casing (1), and stator (3) set up to cylindrical, and stator (3) set up in the inside of a plurality of groups of rotors (2) and revolve around the center pin that a plurality of groups of rotors (2) formed, and casing (1) is inside to be provided with diode bridge (4), and electric connection has rotatory cylindrical transformer (5) on diode bridge (4).

2. A synchronous nonmagnetic motor having a field winding mechanism as recited in claim 1, wherein: a plurality of groups of rotors (2) include rotor tooth (6) and excitation winding (7), and rotor tooth (6) fixed mounting is in the inside of casing (1), and excitation winding (7) are around locating on a plurality of groups of rotor tooth (6) respectively.

3. A synchronous nonmagnetic motor having a field winding mechanism according to claim 1, wherein: a plurality of groups of stator teeth (8) are equidistantly arranged on the stator (3), and a stator winding (9) is wound on the plurality of groups of stator teeth (8).

4. A synchronous nonmagnetic motor having a field winding mechanism according to claim 1, wherein: a through hole (10) is formed in the center of the stator (3), and a rotating shaft (11) is fixedly mounted inside the through hole (10).

5. A synchronous nonmagnetic motor having a field winding mechanism according to claim 1, wherein: the number ratio of the plurality of groups of rotor teeth (6) to the plurality of groups of stator teeth (8) is 3, and the plurality of groups of stator teeth (8) are all provided with Hall sensors.

6. A synchronous nonmagnetic motor having a field winding mechanism according to claim 1, wherein: the rotary cylindrical transformer (5) comprises an outer ring (12), an inner ring (13), a first U-shaped iron core (14), a second U-shaped iron core (15), a first annular winding (16) and a second annular winding (17), the surface of the outer ring (12) is fixedly installed on a plurality of groups of rotors (2), the first U-shaped iron core (14) is fixedly installed on the inner wall of the outer ring (12), the first annular winding (16) is wound on the first U-shaped iron core (14), the inner ring (13) is arranged inside the outer ring (12), the surface of the inner ring (13) is fixedly installed on a stator (3), the second U-shaped iron core (15) is fixedly installed on the inner ring (13), and the second annular winding (17) is wound on the second U-shaped iron core (15).