WO2016000300A1

WO2016000300A1 - Bipolar push-pull high-torque energy-saving motor

Info

Publication number: WO2016000300A1
Application number: PCT/CN2014/084922
Authority: WO
Inventors: 周更新; 张秀英; 山中修; 陈名金
Original assignee: 周凌燕
Priority date: 2014-07-04
Filing date: 2014-08-21
Publication date: 2016-01-07

Abstract

A bipolar push-pull high-torque energy-saving motor, comprising a rotor (1) and stators (2) respectively and correspondingly provided with drive coils (3) and magnets (4); permanent magnets are arranged in a bipolar manner, and the number of drive coils is in multiples of the number of permanent magnets; the magnets arranged in the bipolar manner utilize the drive coils at both sides to generate pulling force and attraction force thereon to work, and to generate torque twice the torque of a motor arranged in a single-pole manner, that is, double output power can be obtained by inputting the same electric energy; further, an existing single-pole motor works in a repulsive state, and has a strong demagnetizing effect on magnets, especially permanent magnets, while repulsive force and attraction force coexist when the above motor works in a normal state, thus effectively avoiding work overload causing demagnetizing effect on the magnets especially the permanent magnets.

Description

Bipolar push-pull strong torque energy-saving motor

The invention relates to a bipolar push-pull strong torque energy-saving motor.

Background technique

Electric motors are important industrial machinery used in various industries. They are responsible for converting electrical energy into mechanical energy and enabling precise control. The application field is extremely extensive and is the main role of power consumption. Its efficiency directly affects all aspects of the national economy. To this end, countries around the world have introduced a large number of preferential policies to promote the development and application of energy-saving motors.

The existing motor technology uses electric power to generate a rotating magnetic field in the coil windings of the motor, and drives the rotor to rotate in accordance with the rotating magnetic field to output mechanical power to the outside. That is, the reverse process of the power generation process, so the current motor and generator can be mutually converted.

The current power generation process of the generator is the process of cutting the magnetic induction line of the power generating coil. On the contrary, the mechanical rotation process of the motor is the rotating magnetic field generated by the winding of the motor winding. This structure is such that the N and S poles of the magnetic field are arranged in a positive direction, and the direction of the magnetic force is perpendicular to the direction of the rotational force. The resultant force is at most 50% of the magnitude of the magnetic force, and the magnetic field force cannot be exerted to the maximum extent. It is also prone to factors such as eddy currents caused by changes in the magnetic field that affect power work.

Summary of the invention

According to the above deficiencies in the prior art, the technical problem to be solved by the present invention is to provide a bipolar push-pull strong torque energy-saving motor which can improve the efficiency of the motor by providing a method capable of eliminating or reducing the influence.

The bipolar push-pull high-torque energy-saving motor provided by the invention comprises a rotor and a stator, and a driving coil and a magnet are respectively arranged on the rotor and the stator, wherein the permanent magnet is a double magnetic pole row Column form, and the number of drive coils is a multiple of the permanent magnet.

When the magnet is a single magnet, the magnetization direction of the magnet is tangential, that is, the side of the single magnet faces the drive coil, and the N and S pole faces of the monopole magnet are disposed on both sides of the central axis of the drive coil. .

When the magnet is a combined magnet, the plurality of magnets are connected in series without gaps to form a set of combined magnets, and the N pole and the S pole of the combined magnet face the drive coil.

The magnet is a permanent magnet or an electromagnet.

The number of drive coils is 2-3 times the number of magnets.

The pole width of the magnet is 1-2 times the width of the drive coil core.

The order of the magnetic poles between the magnets is N-S-N-S-N-S, and an air gap is provided between adjacent magnets or filled with a non-magnetic material.

The distance between adjacent pole bodies is the sum of the core width of the drive coil winding and the core gap. The drive coil is divided into a single-phase winding and a two-phase winding.

The single phase winding includes a single phase forward series connection and a single opposite phase series connection.

Single-phase forward series connection means that a wire is wound on the coil core from top to bottom, that is, the end of the previous winding is connected to the beginning of the latter winding. Single reverse phase series connection means that the end of the previous winding is connected to the end of the latter winding or the beginning of the previous winding is connected to the beginning of the latter winding.

3⁄4.

The two-phase winding comprises a two-phase coil winding, which is a first coil winding and a second coil winding, the driving coils of the first coil winding are spaced apart from each other, the first coil winding is connected in series by the first wire, and the second coil winding is connected in series by the second wire The start end of the first wire is connected to the end of the second wire to form an input end, and the end of the first wire is connected to the start end of the second wire to form another input end.

The invention has the beneficial effects that the magnet of the double magnetic pole arrangement can work with the thrust and the attraction force generated by the driving coils on both sides, and can generate the twist of the motor twice the arrangement of the single magnetic poles. Moment. That is, by inputting the same electric energy, the present invention can already obtain double the output power. Moreover, the current single-pole motor works in a repulsive state, and the demagnetization effect on the magnet, especially the permanent magnet, is strong, and in the normal working state of the invention, the repulsive force and the attraction force coexist, effectively avoiding the overload work especially for the magnet. It is the demagnetization effect of permanent magnets. Improve the overload capacity and working stability of the motor to extend the working life. The magnetic field utilization rate has doubled. The same output power of the motor can effectively reduce the size and weight, and achieve weight reduction and miniaturization.

DRAWINGS

Figure 1 is a schematic view of the structure of the present invention;

Figure 2 is a schematic view 2 of the structure of the present invention;

Figure 3 is a schematic view 3 of the structure of the present invention;

In the figure: 1, the rotor; 2, the stator; 3, the drive coil; 4, the magnet.

detailed description

The embodiments of the present invention are further described below in conjunction with the accompanying drawings:

Example 1:

As shown in FIG. 1 , a bipolar push-pull high-torque energy-saving motor includes a rotor 1 and a stator 2, and a rotor coil 1 and a stator 2 are respectively provided with a driving coil 3 and a magnet 4, and the magnet 4 is in the form of a double magnetic pole arrangement, and The number of drive coils 3 is twice that of the magnet 4. The magnet 4 is a single magnet, and the magnetization direction of the magnet is tangential, that is, the side of the single magnet is opposite to the driving coil, and the N and S pole faces of the monopole magnet are correspondingly disposed on both sides of the central axis of the driving coil. . The magnet is a permanent magnet.

The pole face width of the magnet 4 is one time the width of the drive coil core. The order of the magnetic poles between the magnets 4 is NSNSNS, and an air gap is provided between the adjacent magnets 4 or filled with a non-magnetically permeable material. The distance between adjacent magnets 4 is the sum of the core winding width of the drive coil winding and the core gap. The drive coil 3 is a single-phase winding, and the single-phase is connected in series in the forward direction. Single-phase forward series connection refers to one The wires are wound from top to bottom on the coil core, that is, the end of the previous winding is connected to the beginning of the latter winding. Single-phase forward connection in series, power supply is DC.

When the motor is connected to the DC power supply, the drive coil generates an electromagnetic field, and the electromagnetic field force generated by the drive coil facing the magnetic pole body and the attractive force of the double magnetic pole body to the drive coil cancel each other out, and no work is performed outside. However, the magnetic force generated by the two magnetic poles facing the two driving coils before and after the winding will respectively attract and repel the double magnetic pole body. It constitutes the push-pull force of the double magnetic pole body and performs work externally.

Example 2:

The bipolar push-pull strong torque energy-saving motor comprises a rotor 1 and a stator 2, and a corresponding driving coil 3 and a magnet 4 are respectively arranged on the rotor 1 and the stator 2, wherein the magnets are arranged in a double magnetic pole form, and the number of driving coils is the magnet 4 2 times. The magnet is a single magnet, and the magnetization direction of the magnet is tangential, that is, the side of the single magnet faces the drive coil, and the N and S pole faces of the monopole magnet are disposed on both sides of the central axis of the drive coil. The magnet is a permanent magnet.

The pole width of the magnet is one times the width of the drive coil core. The order of the magnetic poles between the magnets is _N _ _S _ _N _s_ _N _s, and an air gap is provided between adjacent magnets or filled with a non-magnetic material. The distance between adjacent pole bodies is the sum of the core width of the drive coil winding and the core gap. The drive coils are divided into single-phase windings, which are connected in series in opposite directions. Single reverse phase series connection means that the end of the previous winding is connected to the end of the latter winding or the beginning of the previous winding is connected to the beginning of the latter winding. For single reverse connection in series, the power supply is single-phase AC.

Example 3: The bipolar push-pull strong torque energy-saving motor comprises a rotor 1 and a stator 2, and a corresponding driving coil 3 and a magnet 4 are respectively arranged on the rotor 1 and the stator 2, wherein the magnet 4 is in the form of a double magnetic pole, and the number of driving coils is a magnet. 2 times. The magnet is a single magnet, and the magnetization direction of the magnet is tangential, that is, the side of the single magnet faces the drive coil, and the N and S pole faces of the monopole magnet are disposed on opposite sides of the central axis of the drive coil. The magnet is a permanent magnet.

The pole width of the magnet is one times the width of the drive coil core. The order of the magnetic poles between the magnets is _N _ _S _ _N _s_ _N _s, and an air gap is provided between adjacent magnets or filled with a non-magnetic material. The distance between adjacent pole bodies is the sum of the core width of the drive coil winding and the core gap. The drive coil is divided into two-phase windings. The two-phase winding comprises a two-phase coil winding, which is a first coil winding and a second coil winding, the driving coils of the first coil winding are spaced apart from each other, the first coil winding is connected in series by the first wire, and the second coil winding is connected in series by the second wire The start end of the first wire is connected to the end of the second wire to form an input end, and the end of the first wire is connected to the start end of the second wire to form another input end. Suitable for single phase AC.

Claims

Claim

A bipolar push-pull strong torque energy-saving motor comprising a rotor and a stator, wherein the rotor and the stator are respectively provided with a driving coil and a magnet, wherein the magnet is in the form of a double magnetic pole, and the number of driving coils is a magnet Multiples.

2. The bipolar push-pull strong torque energy-saving motor according to claim 1, wherein when the magnet is a single magnet, the magnetization direction of the magnet is tangential, that is, the side of the single magnet is positive. For the drive coil, the N and S pole faces of the single magnet are correspondingly disposed on both sides of the central axis of the drive coil.

3. The bipolar push-pull strong torque energy-saving motor according to claim 1, wherein when the magnet is a combined magnet, the plurality of magnets are connected in series without gaps to form a group of combined magnets, and the N-pole and the S of the combined magnet. Extremely right to drive the coil.

A bipolar push-pull strong torque energy-saving motor according to claim 1, 2 or 3, wherein said magnet is a permanent magnet or an electromagnet.

A bipolar push-pull strong torque energy-saving motor according to claim 1, wherein said number of driving coils is 1-3 times the number of magnets.

6. The bipolar push-pull strong torque energy-saving motor according to claim 1, wherein said magnet has a pole face width of 1-3 times a width of the drive coil core.

7. The bipolar push-pull strong torque energy-saving motor according to claim 1, wherein the magnetic poles are arranged in an order of NS-NS-NS between the magnets, and an air gap is disposed between the adjacent magnets. Filled with a non-magnetic material.

8. The bipolar push-pull strong torque energy-saving motor according to claim 7, wherein the distance between the adjacent magnetic pole bodies is the sum of the core width of the drive coil winding and the core gap.

9. The bipolar push-pull strong torque energy-saving motor according to claim 1, wherein said drive coil is divided into a single-phase winding and a two-phase winding.

10. The bipolar push-pull strong torque energy-saving motor according to claim 9, wherein: Claim

The phase winding includes a single-phase forward series connection and a single opposite phase series connection; a single-phase forward series connection means that one wire is wound on the coil core from top to bottom, that is, the end of the previous winding is terminated. The starting end of the latter winding;

Single reverse phase series connection means that the end of the previous winding is connected to the end of the latter winding or the beginning of the previous winding is connected to the beginning of the latter winding;