Axial single-pole motor

Abstract

The utility model belongs to the technical field of motors, and particularly relates to an axial single-pole motor, which comprises a shell, a shell mounting plate is arranged at the left end of the shell, screws are arranged at two ends of the side wall of the shell mounting plate in a threaded manner, and the shell mounting plate is fixedly connected with the left side wall of the shell through the screws. A rotor magnetic steel mounting plate is fixedly arranged at the right end of the interior of the shell, a plurality of salient poles are arranged on the stator and the rotor, a plurality of rotor magnetic steels are embedded on the surfaces of the salient poles of the rotor fixing plate in a monopole arrangement form, and a stator winding is only wound on the salient poles of the stator; the length of the stator winding is shortened, the use amount of the magnetic steel is reduced, the cost is reduced, and an alternating magnetic field formed by the stator winding does not penetrate through the magnetic steel any more, so that eddy-current loss of the rotor magnetic steel caused by the stator magnetic field is reduced, and the conversion efficiency of electric energy and mechanical energy is greatly improved.

Description

Technical Field

[0001] The utility model relates to the technical field of motors, in particular to an axial single-pole motor. Background Art

[0002] A motor is an electromagnetic device that converts or transmits electric energy based on the law of electromagnetic induction. It is divided into electric motors and generators. Currently, the most commonly used ones are DC permanent magnet motors. The emergence of DC permanent magnet motors has replaced three-phase asynchronous motors in many application fields, laying a substantial foundation for energy conservation and emission reduction.

[0003] However, the existing permanent magnet motors still have the following technical problems when in use:

[0004] The current DC permanent magnet motor has a low speed. In one working cycle, only half of the entire magnetic poles are working, and the working efficiency is low, which cannot meet the normal use of modern industry.

[0005] Therefore, an axial single-pole motor is proposed to solve the above-mentioned problems. Utility Model Content

[0006] The purpose of the utility model is to provide an axial single-pole motor to solve the problems raised in the above background technology.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an axial single-pole motor, comprising a shell, a shell mounting plate is provided at the left end of the shell, screws are threaded at both ends of the side wall of the shell mounting plate, the shell mounting plate is fixedly connected to the left side wall of the shell through the screws, a rotor magnetic steel mounting plate is fixedly provided at the right end inside the shell, a fixed shaft is provided inside the rotor magnetic steel mounting plate for horizontal rotation through a bearing, a tightening nut is sleeved on the right end of the outside of the fixed shaft, a rotor output shaft gear is provided on the right end of the shell outside the fixed shaft, the rotor output shaft gear is connected and fixed to the rotor magnetic steel mounting plate through symmetrical locating pins, a rotor magnet is fixedly provided on the left side wall of the rotor magnetic steel mounting plate, a keyway is provided on the side wall of the fixed shaft, a stator winding mounting plate is fixedly provided on the outside of the fixed shaft, a stator winding is provided on the outside of the stator winding mounting plate, and an ABC wiring harness is fixedly provided on the side wall of the stator winding mounting plate.

[0008] Preferably, the ABC wiring harness includes an A1 input line, a B1 input line, a C1 input line, an A2 star-connected common end line, a B2 star-connected common end line and a C2 star-connected common end line.

[0009] Preferably, the stator winding includes an L1 stator winding, an L2 stator winding, an L3 stator winding, an L4 stator winding, an L5 stator winding and an L6 stator winding.

[0010] Preferably, the rotor magnet is installed in a rotor magnet mounting plate.

[0011] Preferably, the evenly arranged rotor magnets are embedded in the side surface of the rotor magnet mounting plate in an N-pole arrangement.

[0012] Preferably, the evenly arranged rotor magnets are embedded in the side surface of the rotor magnet mounting plate 2 in an S-pole arrangement.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] By arranging multiple salient poles on both the stator and the rotor, multiple rotor magnets are embedded in the surface of each salient pole of the rotor fixing plate in a monopole arrangement, and the stator winding is only wound on each salient pole of the stator, which shortens the length of the stator winding, reduces the amount of magnets used, and reduces costs. The alternating magnetic field formed by the stator winding no longer runs through the magnets, thereby reducing the eddy current loss caused by the stator magnetic field to the rotor magnets, greatly improving the conversion efficiency of electrical energy and mechanical energy. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a cross-sectional schematic diagram of the main view structure of the axial single-pole motor;

[0016] Figure 2 It is the AA sectional view of the main view structure of the axial single-pole motor;

[0017] Figure 3 It is the BB section view of the main view structure of the axial single-pole motor;

[0018] Figure 4 This is a working principle diagram of the axial single-pole motor after the stator and rotor overlap along the axial direction.

[0019] In the figure: 1-housing, 2-rotor magnet mounting plate, 3-rotor magnet, 4-rotor output shaft gear, 5-locating pin, 6-bearing, 7-tightening nut, 8-fixed shaft, 9-keyway, 10-housing mounting plate, 11-ABC wiring harness, 12-screw, 13-stator winding mounting plate, 14-stator winding. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0022] Example:

[0023] See also Figure 1-4 , the utility model provides a technical solution:

[0024] An axial single-pole motor comprises a housing 1, a housing mounting plate 10 is arranged at the left end of the housing 1, screws 12 are arranged at both ends of the side wall of the housing mounting plate 10, the housing mounting plate 10 is fixedly connected to the left side wall of the housing 1 through the screws 12, a rotor magnetic steel mounting plate 2 is fixedly arranged at the right end inside the housing 1, six salient poles are arranged on the magnetic steel mounting plate 2, a fixed shaft 8 is arranged inside the rotor magnetic steel mounting plate 2 for horizontal rotation through a bearing 6 through a groove in the stator mounting plate, a tightening nut 7 is arranged on the right end of the outer side of the fixed shaft 8, and the right end of the housing 1 is fixedly arranged at the right end of the housing 1. A rotor output shaft gear 4 is arranged on the outside of the fixed shaft 8 at the end, and the rotor output shaft gear 4 is connected and fixed to the rotor magnetic steel mounting plate 2 through symmetrical locating pins 5. A rotor magnet 3 is fixedly arranged on the left wall of the rotor magnetic steel mounting plate 2. A key slot 9 is opened on the side wall of the fixed shaft 8. A stator winding mounting plate 13 is fixedly arranged on the outside of the fixed shaft 8. A stator winding 14 is arranged on the outside of the stator winding mounting plate 13. The stator winding mounting plate 13 is fixed to the fixed shaft 8 through the key slot 9 and the key sleeve, and an ABC wiring harness 11 is fixedly arranged on the side wall of the stator winding mounting plate 13.

[0025] The ABC wiring harness 11 includes an A1 input line, a B1 input line, a C1 input line, an A2 star-connected common line, a B2 star-connected common line, and a C2 star-connected common line.

[0026] The stator winding 14 includes an L1 stator winding, an L2 stator winding, an L3 stator winding, an L4 stator winding, an L5 stator winding, and an L6 stator winding.

[0027] The rotor magnet 3 is installed in the rotor magnet mounting plate 2 .

[0028] The evenly arranged rotor magnets 3 are embedded on the side surface of the rotor magnet mounting plate 2 in an N-pole arrangement.

[0029] The evenly arranged rotor magnets 3 are embedded in the side surface of the rotor magnet mounting plate 2 in an S-pole arrangement.

[0030] The number of salient poles on the fixed shaft 8 is a multiple of three.

[0031] The number of salient poles on the housing 1 is a multiple of two.

[0032] The stator is provided with 6 salient poles, which are positioned and installed through the grooves in the stator mounting plate;

[0033] The rotor magnetic steel 3 is divided into N1 magnetic steel, N2 magnetic steel, N3 magnetic steel and N4 magnetic steel, which are embedded in the groove of the rotor magnetic steel mounting plate 2 in a single-pole form and distributed in a fan shape to form the salient poles of each rotor;

[0034] The multiple salient poles of the rotor are all N poles or S poles. This magnetic pole arrangement mode breaks the conventional magnetic pole arrangement mode. The working magnetic pole of the salient pole of the stator depends on the positive and negative polarity of the input voltage.

[0035] The stator winding 14 includes L1 , L2 , L3 , L4 , L5 , and L6 , and the number thereof is a multiple of three.

[0036] The N1 magnet, N2 magnet, N3 magnet and N4 magnet are embedded on the rotor mounting plate in an S-pole arrangement, and the number is a multiple of 2.

[0037] Working principle:

[0038] 1. When the A1 input line applies positive voltage through the controller and the C1 input line applies negative voltage, a magnetic field of the same pole will be generated in the L1 stator winding to repel the rotor. Its running direction is determined by whether the negative voltage is applied to the C1 input line or the B1 input line. Taking the negative voltage applied to the C1 input line as an example, a loop is formed through the star common terminal. At this time, the L3 stator winding will generate an S-pole magnetic field. According to the principle that the magnetic circuit will extend the shortest path to close, the N2 rotor magnet will close to the L3 stator winding, so that the rotor runs counterclockwise to form a closed magnetic pole. At this time, the N2 magnet and the L3 stator winding are in a closed state;

[0039] 2. The controller stops supplying power to the A1 input line, and then applies positive voltage to the C1 input line and negative voltage to the B1 input line to form a loop through the star common terminal. At this time, the L3 stator winding will generate an N-pole magnetic field, and the L2 stator winding will generate an S-pole magnetic field. The N1 magnet will rotate counterclockwise and close with the L2 stator winding. The controller stops supplying power to the C1 input line, applies positive voltage to the B1 input line and negative voltage to the A1 input line. The rotor rotates to drive the N4 magnet to combine with the L1 stator winding and rotate one pole counterclockwise.

[0040] By analogy, if voltage is applied alternately to the input lines A1, B1 and C1, the motor will rotate counterclockwise. If you want the rotor to rotate in the other direction, you can change the order of applying voltage so that the rotor can rotate repeatedly.

[0041] The outer rotor single-pole motor provided by the embodiment of the present invention has multiple salient poles on both the stator and the rotor, and multiple magnets are embedded in the surface of each salient pole of the rotor in a monopole arrangement. The winding (coil) is only wound on each salient pole of the stator, which shortens the length of the winding (coil) and reduces the cost. The alternating magnetic field formed by the stator winding no longer passes through the magnet, thereby reducing the eddy current loss caused by the stator magnetic field to the rotor magnet, thereby greatly improving the conversion efficiency of electrical energy and mechanical energy.

[0042] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. For those skilled in the art, it is obvious that the utility model is not limited to the details of the above exemplary embodiments, and the utility model can be implemented in other specific forms without departing from the spirit or basic features of the utility model; therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the utility model is limited by the attached claims rather than the above description. Therefore, it is intended to include all changes within the meaning and scope of the equivalent elements of the claims in the utility model, and any figure marks in the claims should not be regarded as limiting the claims involved.

[0043] 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 variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An axial single-pole motor, comprising a housing (1), characterized in that: The left end of the housing (1) is provided with a housing mounting plate (10), both ends of the side wall of the housing mounting plate (10) are threadedly provided with screws (12), and the housing mounting plate (10) is fixedly connected to the left side wall of the housing (1) through the screws (12). The right end of the inside of the housing (1) is fixedly provided with a rotor magnetic steel mounting plate (2), and the inside of the rotor magnetic steel mounting plate (2) is provided with a fixed shaft (8) for horizontal rotation through a bearing (6), and the right end of the outside of the fixed shaft (8) is sleeved with a tightening nut (7), and the right end of the housing (1) is located at the fixed shaft (8). ) is provided with a rotor output shaft gear (4) on the outside, the rotor output shaft gear (4) is connected and fixed to the rotor magnetic steel mounting plate (2) through symmetrical positioning pins (5), the left side wall of the rotor magnetic steel mounting plate (2) is fixedly provided with a rotor magnetic steel (3), the side wall of the fixed shaft (8) is provided with a keyway (9), the outside of the fixed shaft (8) is fixedly provided with a stator winding mounting plate (13), the outside of the stator winding mounting plate (13) is provided with a stator winding (14), and the side wall of the stator winding mounting plate (13) is fixedly provided with an ABC wiring harness (11).

2. An axial single-pole motor according to claim 1, characterized in that: The ABC wire harness (11) comprises an A1 input wire, a B1 input wire, a C1 input wire, an A2 star-connected common terminal wire, a B2 star-connected common terminal wire and a C2 star-connected common terminal wire.

3. The axial single-pole motor according to claim 1, characterized in that: The stator winding (14) comprises an L1 stator winding, an L2 stator winding, an L3 stator winding, an L4 stator winding, an L5 stator winding and an L6 stator winding.

4. The axial single-pole motor according to claim 1, characterized in that: The rotor magnetic steel (3) is installed in the rotor magnetic steel installation plate (2).

5. The axial single-pole motor according to claim 1, characterized in that: The evenly arranged rotor magnetic steels (3) are embedded in the side surface of the rotor magnetic steel mounting plate (2) in an N-pole arrangement.

6. The axial single-pole motor according to claim 1, characterized in that: The evenly arranged rotor magnetic steels (3) are embedded in the side surface of the rotor magnetic steel mounting plate (2) in an S-pole arrangement.

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