CN213959916U

CN213959916U - Non-contact resonance phase-changing structure of DC motor

Info

Publication number: CN213959916U
Application number: CN202022433994.XU
Authority: CN
Inventors: 李卓青; 吴清其
Original assignee: Fuzhou Wande Power Technology Co ltd
Current assignee: Fuzhou kaimeiyi Intelligent Equipment Manufacturing Co.,Ltd.
Priority date: 2020-10-28
Filing date: 2020-10-28
Publication date: 2021-08-13
Anticipated expiration: 2030-10-28

Abstract

The utility model relates to the technical field of direct current motors, in particular to a non-contact resonance phase-change structure of a direct current motor, which comprises a stator support, a rotor core and a rotor support, wherein the rotor core is connected with the rotor support, the rotor support is arranged in an inner cavity of the stator support, the stator support is provided with a first capacitor and a first coil, the first capacitor is electrically connected with the first coil, and the first capacitor and the first coil are respectively electrically connected with a power supply; the rotor core is provided with a second capacitor, the second capacitor is electrically connected with a second coil, the second coil is electrically connected with a rotor conductor, and the rotor conductor is connected with the rotor core. The motor has small running sound, and because the relative sliding between the carbon brush and the slip ring is cancelled, the noise of the motor is reduced, so that the motor can run in the occasion with quiet requirement, the motor realizes the non-contact electric energy transmission, and the spark output of the direct current brush motor is fundamentally solved; the motor can be used for displaying the hands in flammable and explosive places.

Description

Non-contact resonance phase-changing structure of DC motor

Technical Field

The utility model relates to a direct current motor technical field specifically is direct current motor contactless resonance commutation structure.

Background

In the prior art, a brush direct current motor has large operation sound, and sparks can be generated due to the requirement of electric energy transmission in the relative movement process of a carbon brush and a slip ring, so that the brush direct current motor is not beneficial to being used in flammable and explosive places; the service life of the carbon brush has a certain limit; for example, the carbon brush can be worn out in one thousand hours and can only be replaced; the speed of the dc motor is limited by the speed of contact between the carbon brushes and the slip rings. Besides, the brushless direct current motor must be provided with a controller, strategic resources such as magnetic steel and the like are needed, and the use is inconvenient.

Based on this, the utility model designs a direct current motor contactless resonance commutation structure to solve above-mentioned technical problem.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a direct current motor contactless resonance commutation structure for solve above-mentioned technical problem.

In order to achieve the above object, the utility model provides a following technical scheme: the direct current motor non-contact resonance phase change structure comprises a stator support, a rotor core and a rotor support, wherein the rotor core is connected with the rotor support, the rotor support is arranged in an inner cavity of the stator support, the stator support is provided with a first capacitor and a first coil, the first capacitor is electrically connected with the first coil, and the first capacitor and the first coil are respectively electrically connected with a power supply;

the rotor core is provided with a second capacitor, the second capacitor is electrically connected with a second coil, the second coil is electrically connected with a rotor conductor, and the rotor conductor is connected with the rotor core.

Preferably, the annular array of rotor conductors is disposed on an outer wall of the rotor core.

Preferably, one end of the rotor bracket, which is far away from the rotor core, is provided with a rotating shaft.

Preferably, the second coil is arranged on the outer wall of the rotor support.

Preferably, the first coil is arranged in the inner cavity of the stator support.

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

1. the motor has small running sound, and the noise of the motor is reduced because the relative sliding between the carbon brush and the slip ring is cancelled, so that the motor can run in occasions requiring silence, such as hospitals, banks, airports and the like.

2. The motor realizes non-contact electric energy transmission, and fundamentally solves the problem of spark output of the direct-current brush motor; the motor can be used for displaying the hands in flammable and explosive places.

3. The abrasion phenomenon of the carbon brush is avoided, so that the service life of the brush motor is prolonged by several times or even dozens of times.

4. The motor speed is made higher because the magnetic field induction is adopted without substantial limitation of the contact speed; the speed of the motor can be made higher.

5. Unlike brushless motors that require a controller for their application; the motor can be directly used by adding direct current.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.

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

FIG. 2 is a cross-sectional view taken along line A-A of FIG. 1;

FIG. 3 is a cross-sectional view B-B of FIG. 1 with the stator frame hidden;

fig. 4 is a schematic diagram of the stator and rotor of the present invention.

In the drawings, the components represented by the respective reference numerals are listed below:

1. a stator support; 2. a rotor core; 3. a rotor support; 4. a first capacitor; 5. a first coil; 6. a second capacitor; 7. a second coil; 8. a rotor conductor; 9. a rotating shaft.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying 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 of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.

Example (b):

referring to fig. 1-4, the present invention provides a technical solution: the direct current motor non-contact resonance phase change structure comprises a stator support 1, a rotor core 2 and a rotor support 3, wherein the rotor core 2 is connected with the rotor support 3, the rotor support 3 is arranged in an inner cavity of the stator support 1, the stator support 1 is provided with a first capacitor 4 and a first coil 5, the first capacitor 4 is electrically connected with the first coil 5, and the first capacitor 4 and the first coil 5 are respectively electrically connected with a power supply;

rotor core 2 is provided with second electric capacity 6, and second electric capacity 6 electric connection has second coil 7, and second coil 7 electric connection has rotor conductor 8, and rotor conductor 8 is connected with rotor core 2.

Specifically, the rotor conductors 8 are arranged in an annular array on the outer wall of the rotor core 2.

Specifically, one end of the rotor bracket 3, which is far away from the rotor core 2, is provided with a rotating shaft 9, and kinetic energy is output through the rotating shaft 9.

In particular, the second coil 7 is arranged on the outer wall of the rotor holder 3.

Specifically, the first coil 5 is disposed in the inner cavity of the stator frame 1.

One specific application of this embodiment is: the power supply is applied to the circuit formed by the first capacitor 4 and the first coil 5. When the first coil 5 is energized, a magnetic field is generated. First coil 5 is fixed not rotatory, and second coil 7 rotates along with spider 3, and when second coil 7 rotated and coincide with first coil 5 position, electromagnetic induction took place for first coil 5 and second coil 7, made second coil 7 produce induced current. After the second coil 7 generates current, the rotor conductor 8 is energized. The electrified rotor conductor 8 rotates under the action of the magnetic field, and then drives the rotor bracket 3 to rotate, and further drives the rotating shaft 9 to rotate, and kinetic energy is output through the rotating shaft 9.

In the rotating process of the rotor bracket 3, the other second coil 7 is rotated to the position overlapped with the first coil 5, the other rotor conductor 8 is electrified, the rotor conductor 8 rotates under the action of a magnetic field, and the direct current motor continuously rotates in the mode.

The technical scheme has the advantages that: firstly, the running sound of the motor is small, and the noise of the motor is reduced due to the fact that the relative sliding between the carbon brush and the slip ring is eliminated, so that the motor can run in occasions requiring silence, such as hospitals, banks, airports and the like.

Secondly, the motor realizes non-contact electric energy transmission, and fundamentally solves the problem of spark output of the direct-current brush motor; the motor can be used for displaying the hands in flammable and explosive places.

And thirdly, the abrasion phenomenon of the carbon brush is avoided, so that the service life of the brush motor is prolonged by several times or even dozens of times.

Fourthly, the motor speed is higher, and the magnetic field induction is adopted without substantial limitation of the contact speed; the speed of the motor can be made higher.

Fifthly, the brushless motor is not required to be applied only by being provided with a controller; the motor can be directly used by adding direct current.

In the description herein, references to the description of "one embodiment," "an example," "a specific example," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The preferred embodiments of the present invention disclosed above are intended only to help illustrate the present invention. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and its practical applications, to thereby enable others skilled in the art to best understand the invention for and utilize the invention. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. Direct current motor contactless resonance commutation structure, including stator support (1), rotor core (2) and rotor support (3), rotor core (2) are connected with rotor support (3), rotor support (3) set up at stator support (1) inner chamber, its characterized in that: the stator support (1) is provided with a first capacitor (4) and a first coil (5), the first capacitor (4) is electrically connected with the first coil (5), and the first capacitor (4) and the first coil (5) are respectively electrically connected with a power supply;

rotor core (2) are provided with second electric capacity (6), second electric capacity (6) electric connection has second coil (7), second coil (7) electric connection has rotor conductor (8), rotor conductor (8) are connected with rotor core (2).

2. The contactless resonance phase-change structure of a direct-current motor according to claim 1, characterized in that: and the rotor conductors (8) are arranged on the outer wall of the rotor core (2) in an annular array.

3. The contactless resonance phase-change structure of a direct-current motor according to claim 1, characterized in that: and a rotating shaft (9) is arranged at one end of the rotor bracket (3) far away from the rotor core (2).

4. The contactless resonance phase-change structure of a direct-current motor according to claim 1, characterized in that: the second coil (7) is arranged on the outer wall of the rotor bracket (3).

5. The contactless resonance phase-change structure of a direct-current motor according to claim 1, characterized in that: the first coil (5) is arranged in an inner cavity of the stator support (1).