Motor stator winding, motor stator and motor

Abstract

The present invention belongs to the technical field of motors, and in particular, relates to a motor stator winding, a motor stator and a motor. The inner slot layer of the stator core is 48 slots, the long distance in the first coil group corresponds to the short distance in the second coil group, and the short distance in the first coil group corresponds to the long distance in the second coil group, so that the potential between the first branch and the second branch is symmetrical, thereby balancing the potential and reducing the motor running noise; the winding lead wire can provide appropriate current and voltage according to the requirements of the winding motor, so as to control the size of the eddy current, reduce energy loss and heat generation, and improve the efficiency and stability of the motor; the second heat dissipation plate can have an appropriate gap with the first fixed plate, which accelerates heat dissipation while separating the output shaft from the first fixed plate, replacing the bearing connection, and preventing the motor housing from overheating.

Description

Technical Field

[0001] The invention belongs to the technical field of motors, and in particular relates to a motor stator winding, a motor stator and a motor. Background Art

[0002] Electric motors are key components in many mechanical devices that are used to convert electrical energy into mechanical energy or vice versa. In the structure of an electric motor, the stator (also called armature) and the rotor (also called armature) are the two main parts.

[0003] The stator winding is a key part of the motor stator, usually made of copper wire or aluminum wire. These wires are wound in the slots of the stator core. When current passes through the winding, a rotating magnetic field is generated in the stator. This magnetic field interacts with the magnetic field in the rotor to generate torque, causing the rotor to rotate. The design and construction of the winding has a great influence on the performance of the motor (such as efficiency, power factor, temperature rise, etc.).

[0004] In the prior art, when the motor is in use, if the shaft is affected by poor material or excessive temperature, the motor shaft will be deformed or have radial or longitudinal cracks, reducing the service life of the shaft; and the motor often has an output shaft that idles while the motor is still outputting, causing continuous heating inside the motor, which in turn affects the service life of the motor and even damages it. In addition, the winding method usually has more or less potential imbalance problems, affecting the performance of the motor.

[0005] Therefore, a motor stator winding, a motor stator and a motor are designed to solve the above problems. Summary of the invention

[0006] In order to solve the problems raised in the above background technology, the present invention provides a motor stator winding, a motor stator and a motor to solve the problem of anti-dislocation and deformation wear of the motor output shaft, and achieve the effect of reducing the noise of the motor by improving the structure of the circuit.

[0007] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a motor stator winding, a motor stator and a motor, including an anti-dislocation motor, the anti-dislocation motor including a motor housing, an output shaft, a socket disk, a heat dissipation cover, a first fixed disk, a second heat dissipation disk, a stator core and a rotor part, the stator core is fixedly connected to the inside of the motor housing, the rotor part is rotatably connected to the inside of the motor housing, the output shaft is rotatably connected to the outside of the motor housing, the outside of the socket disk is fixedly connected to the inner surface of the motor housing, the heat dissipation cover is threadedly connected to the outside of the motor housing, the middle part of one side of the first fixed disk is fixedly connected to the outside of the output shaft, the inner side of the second heat dissipation disk is plugged into the outer surface of the first fixed disk, and a heat dissipation component is also provided on one side of the first fixed disk;

[0008] The heat dissipation assembly includes a wind shield, an electric telescopic rod, a connecting rod and a rotating disk, wherein the electric telescopic rod is threadedly connected to the inside of the wind shield, and the output end of the electric telescopic rod is fixedly connected to the inner side of the connecting rod, the middle part of the rotating disk is fixedly connected to the outer side of the connecting rod, and the outer side of the rotating disk is clamped with the inner side of the second heat dissipation disk;

[0009] The outer side of the first fixed disk is also fixedly connected with a nylon card block, and the nylon card blocks are provided in a plurality of groups, and the plurality of groups of the nylon card blocks are arranged in an annular array on the outer side of the first fixed disk;

[0010] A slot matching the size of the nylon card block is also provided on one side of the second heat dissipation plate close to the first fixing plate;

[0011] The first fixed disk and the second heat dissipation disk are separated by a heat dissipation assembly. The first fixed disk and the second heat dissipation disk do not affect the rotation of the output shaft during the separation process. The first fixed disk and the second heat dissipation disk with intervals replace the bearings and support the output shaft. The potential is balanced by connecting the branches of the built-in slots of the stator core in series.

[0012] Preferably, the rotor part includes a rotor core, copper bars, a main shaft, a rotor winding, a winding lead wire, a collector ring, a brush and a spring. The middle part of the rotor core is fixedly connected to the main shaft, and the outer side of the main shaft is fixedly connected to the middle part of the wind cover. The rotor winding is a cage-type rotor winding, and the rotor winding is wound around the inside of the rotor core. The copper bars are welded and fixed to the outside of the rotor core, and the winding lead wire is wound and connected to the outside of the rotor winding. One end of the collector ring is tightly fitted with the outer wall of the main shaft, and the brush is fixedly connected to the inside of the motor housing. The two ends of the spring are respectively fixedly connected to the opposite side surfaces of the brush and the collector ring.

[0013] Preferably, the rotor winding comprises a first winding, a second winding and a third winding, and the number of turns of any two phase windings in the first winding, the second winding and the third winding are different.

[0014] Preferably, an even number of slot layers are provided inside the stator core, and a first coil group and a second coil group are also provided inside the slot layers. The first coil group and the second coil group are arranged in the same layer and adjacent slots, and the first coil group and the second coil group are respectively wound around all the slot layers of the stator core.

[0015] Preferably, the first coil group and the second coil group include a first conductor and a second conductor, the cross-slot distance between two welding ends of the first conductor is a long distance, and the cross-slot distance between two welding ends of the second conductor is a short distance.

[0016] Preferably, the welding end of the first conductor is connected to the welding end of the adjacent second conductor to form a conductor group, and several of the conductor groups are connected to form the first coil group and the second coil group, and each of the conductor groups in the first coil group corresponds to the conductor group in the second coil group according to the slot number.

[0017] Preferably, it comprises the stator as described in any one of claims 4-6 above.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] 1. In the present invention, the inner slot layer of the stator core has 48 slots, the long distance in the first coil group corresponds to the short distance in the second coil group, and the short distance in the first coil group corresponds to the long distance in the second coil group, so that the potential between the first branch and the second branch is symmetrical, thereby balancing the potential and reducing the running noise of the motor.

[0020] 2. In the present invention, the winding lead wire can provide appropriate current and voltage according to the requirements of the winding motor, thereby controlling the size of the eddy current, reducing energy loss and heat generation, and improving the efficiency and stability of the motor.

[0021] 3. In the present invention, there can be an appropriate gap between the second heat dissipation plate and the first fixed plate, which accelerates heat dissipation while separating the output shaft from the first fixed plate, replacing the bearing connection, and preventing the motor housing from overheating. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0023] Figure 1 It is a structural schematic diagram of the present invention;

[0024] Figure 2 This is a cross-sectional effect diagram of the motor housing in the present invention;

[0025] Figure 3 An exploded view of the stator core and the rotor part of the present invention;

[0026] Figure 4 It is a schematic diagram of the structure of the first coil group and the second coil group in the present invention;

[0027] Figure 5 It is a schematic structural diagram of the rotor part in the present invention;

[0028] Figure 6 It is a structural schematic diagram of the heat dissipation component in the present invention;

[0029] Figure 7is a distribution diagram of the torsion spring hinge in the present invention;

[0030] Figure 8 It is an exploded view of the first fixing plate and the second heat dissipation plate in the present invention;

[0031] Fig. 9 This is a cross-sectional effect diagram of the wind shield of the present invention;

[0032] Fig.10 is a distribution diagram of the slots in the present invention;

[0033] In the figure: 1. anti-dislocation motor; 2. motor housing; 3. output shaft; 4. socket plate; 5. heat dissipation cover; 6. first fixed plate; 7. second heat dissipation plate; 8. stator core; 9. rotor part; 10. heat dissipation assembly; 11. wind cover; 12. electric telescopic rod; 13. connecting rod; 14. rotating plate; 15. nylon block; 16. slot; 17. slot layer; 18. first coil group; 19. second coil group; 20. first conductor; 21. second conductor; 22. conductor group; 23. rotor core; 24. copper guide bar; 25. main shaft; 26. rotor winding; 27. winding lead wire; 28. collector ring; 29. ​​brush; 30. spring; 31. first winding; 32. second winding; 33. third winding; 34. fan blade; 35. torsion spring hinge. DETAILED DESCRIPTION

[0034] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0035] like Figure 1-Figure 8 A motor stator winding, a motor stator and a motor shown in the figure include an anti-dislocation motor 1, the anti-dislocation motor 1 includes a motor housing 2, an output shaft 3, a socket disk 4, a heat dissipation cover 5, a first fixed disk 6, a second heat dissipation disk 7, a stator core 8 and a rotor part 9, the stator core 8 is fixedly connected to the inside of the motor housing 2, the rotor part 9 is rotatably connected to the inside of the motor housing 2, the output shaft 3 is rotatably connected to the outside of the motor housing 2, the outside of the socket disk 4 is fixedly connected to the inner surface of the motor housing 2, the heat dissipation cover 5 is threadedly connected to the outside of the motor housing 2, the middle part of one side of the first fixed disk 6 is fixedly connected to the outside of the output shaft 3, the inner side of the second heat dissipation disk 7 is plugged into the outer surface of the first fixed disk 6, and a heat dissipation component 10 is also provided on one side of the first fixed disk 6;

[0036] The first fixed plate 6 and the second heat dissipation plate 7 are separated by the heat dissipation assembly 10. The first fixed plate 6 and the second heat dissipation plate 7 do not affect the rotation of the output shaft 3 during the separation process. The first fixed plate 6 and the second heat dissipation plate 7 with intervals replace the bearings and support the output shaft 3. The potential is balanced by connecting the branches of the built-in slots of the stator core 8 in series.

[0037] The heat dissipation assembly 10 includes a wind hood 11, an electric telescopic rod 12, a connecting rod 13 and a rotating disk 14. The electric telescopic rod 12 is threadedly connected to the inside of the wind hood 11, and the output end of the electric telescopic rod 12 is fixedly connected to the inner side of the connecting rod 13. The middle part of the rotating disk 14 is fixedly connected to the outer side of the connecting rod 13, and the outer side of the rotating disk 14 is clamped with the inner side of the second heat dissipation disk 7.

[0038] When the motor is in use, if the shaft is affected by poor material or excessive temperature, it will cause deformation, radial or longitudinal cracks on the motor shaft, reducing the service life of the shaft. The device can start the electric telescopic rod 12 inside the wind cover 11, and its output end pushes the connecting rod 13. The connecting rod 13 drives the outer rotating disk 14 to push the second heat dissipation disk 7 outward. The hinge end faces of multiple sets of torsion spring hinges 35 are against the outer periphery of the second heat dissipation disk 7. There is an appropriate amount of gap between the second heat dissipation disk 7 and the first fixed disk 6, which accelerates the heat dissipation while separating the output shaft 3 from the first fixed disk 6, thereby replacing the bearing connection, and does not affect the rotation effect during the heat dissipation process. The fan blades 34 cooperate to enhance the heat dissipation performance of the motor housing 2, thereby preventing the motor housing 2 from overheating.

[0039] The outer side of the first fixed disk 6 is also fixedly connected with a nylon card block 15 . The nylon card blocks 15 are provided in a plurality of groups, and the plurality of groups of nylon card blocks 15 are arranged in an annular array on the outer side of the first fixed disk 6 .

[0040] A slot 16 matching the size of the nylon card block 15 is also provided on one side of the second heat dissipation plate 7 close to the first fixing plate 6 .

[0041] One end of the output shaft 3 is inserted into the card joint of the second heat dissipation disk 7 along the inside of the motor housing 2. When the heat dissipation is completed, the electric telescopic rod 12 inside is reversed to retract the rotating disk 14. Under the action of the torsion spring, the torsion spring hinge 35 pushes the second heat dissipation disk 7 back to its original position, so that the nylon block 15 of the first fixed disk 6 is firmly inserted into the slot 16, thereby completing the quick connection of the first fixed disk 6 and the second heat dissipation disk 7. During the rotation process, the first fixed disk 6 and the second heat dissipation disk 7 are always located inside the socket disk 4 and rotate, and their contact surfaces are smooth surfaces, thereby improving the stability of the connection and preventing excessive shaking during the operation of the motor and reducing its service life.

[0042] The rotor part 9 includes a rotor core 23, copper bars 24, a main shaft 25, a rotor winding 26, a winding lead 27, a collector ring 28, a brush 29 and a spring 30. The middle part of the rotor core 23 is fixedly connected to the main shaft 25, and the outer side of the main shaft 25 is fixedly connected to the middle part of the wind cover 11. The rotor winding 26 is a cage-type rotor winding 26, and the rotor winding 26 is wound around the inside of the rotor core 23. The copper bars 24 are welded and fixed to the outside of the rotor core 23, and the winding lead 27 is wound and connected to the outside of the rotor winding 26. One end of the collector ring 28 is tightly fitted with the outer wall of the main shaft 25, and the brush 29 is fixedly connected to the inside of the motor housing 2. The two ends of the spring 30 are respectively fixedly connected to the opposite side surfaces of the brush 29 and the collector ring 28.

[0043] The rotor winding 26 includes a first winding 31 , a second winding 32 and a third winding 33 , and the number of turns of any two phase windings among the first winding 31 , the second winding 32 and the third winding 33 are different.

[0044] The first winding 31, the second winding 32 and the third winding 33 are each wound at 120° and connected to the inner side of the groove of the rotor core 23. When the stator coil is energized, a surrounding magnetic field is generated, thereby driving the rotor core 23 and the main shaft 25 to rotate. The copper bars 24 distributed on the outside can enhance the stability of current transmission and accelerate the heat dissipation effect of the motor through the uneven outer surface. The current is transmitted to the winding lead wire 27 through the copper bars 24. Through the lead wire, the power supply and controller can transmit the current and control signal to the rotor, so that the winding motor starts working, thereby improving the efficiency and stability of the motor. The carbon brush maintains close contact with the collector ring 28 through the pressure of the spring 30, and the outer side of the collector ring 28 is in close contact with the main shaft 25 to ensure a good electrical connection.

[0045] An even number of slot layers 17 are arranged inside the stator core 8. A first coil group 18 and a second coil group 19 are also arranged inside the slot layer 17. The first coil group 18 and the second coil group 19 are arranged in the same layer and adjacent slots. The first coil group 18 and the second coil group 19 are respectively wound around all the slot layers 17 of the stator core 8.

[0046] The first coil group 18 and the second coil group 19 include a first conductor 20 and a second conductor 21 . The cross-slot distance between the two welding ends of the first conductor 20 is long, and the cross-slot distance between the two welding ends of the second conductor 21 is short.

[0047] The welding end of the first conductor 20 is connected to the welding end of the adjacent second conductor 21 to form a conductor group 22. Several conductor groups 22 are connected to form a first coil group 18 and a second coil group 19. Each conductor group 22 in the first coil group 18 corresponds to a conductor group 22 in the second coil group 19 according to the slot number.

[0048] A stator comprising any one of claims 4 to 6.

[0049] The welding end of the first conductor 20 is connected to the welding end of the adjacent second conductor 21 to form a conductor group 22, that is, a long-distance conductor and a short-distance conductor together form a conductor group 22, and a plurality of conductor groups 22 are connected to form the first coil group 18 and the second coil group 19. Each conductor group 22 in the first coil group 18 corresponds to the conductor group 22 in the second coil group 19 according to the slot number, the first conductor 20 in the first coil group 18 corresponds to the second conductor 21 in the corresponding conductor group 22 in the second coil group 19, and the second conductor 21 in the first coil group 18 corresponds to the first conductor 20 in the corresponding conductor group 22 in the second coil group 19. That is, the long distance in the first coil group 18 corresponds to the short distance in the second coil group 19, and the short distance in the first coil group 18 corresponds to the long distance in the second coil group 19, so that the potential between the first branch and the second branch is symmetrical.

[0050] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A motor, comprising an anti-dislocation motor (1), characterized in that: The anti-dislocation motor (1) comprises a motor housing (2), an output shaft (3), a socket plate (4), a heat dissipation cover (5), a first fixed plate (6), a second heat dissipation plate (7), a stator core (8) and a rotor part (9), wherein the stator core (8) is fixedly connected to the inside of the motor housing (2), the rotor part (9) is rotatably connected to the inside of the motor housing (2), the output shaft (3) is rotatably connected to the outside of the motor housing (2), the outside of the socket plate (4) is fixedly connected to the inner surface of the motor housing (2), the heat dissipation cover (5) is threadedly connected to the outside of the motor housing (2), the middle part of one side of the first fixed plate (6) is fixedly connected to the outside of the output shaft (3), the inner side of the second heat dissipation plate (7) is plugged into the outer surface of the first fixed plate (6), and a heat dissipation component (10) is also provided on one side of the first fixed plate (6); The heat dissipation assembly (10) comprises a wind shield (11), an electric telescopic rod (12), a connecting rod (13) and a rotating disk (14); the electric telescopic rod (12) is threadedly connected to the inside of the wind shield (11), and the output end of the electric telescopic rod (12) is fixedly connected to the inner side of the connecting rod (13); the middle part of the rotating disk (14) is fixedly connected to the outer side of the connecting rod (13), and the outer side of the rotating disk (14) is clamped to the inner side of the second heat dissipation disk (7); The outer side of the first fixed disk (6) is also fixedly connected with a nylon card block (15), and the nylon card blocks (15) are provided in a plurality of groups, and the plurality of groups of the nylon card blocks (15) are arranged in a circular array on the outer side of the first fixed disk (6); A slot (16) matching the size of the nylon card block (15) is also provided on a side of the second heat dissipation plate (7) close to the first fixing plate (6); The first fixed disk (6) and the second heat dissipation disk (7) are separated by a heat dissipation assembly (10); the first fixed disk (6) and the second heat dissipation disk (7) do not affect the rotation of the output shaft (3) during the separation process; the first fixed disk (6) and the second heat dissipation disk (7) with a gap replace the bearing and support the output shaft (3); and the electric potential is balanced by connecting the branches of the built-in slots of the stator core (8) in series.

2. A motor according to claim 1, characterized in that: The rotor part (9) comprises a rotor core (23), copper bars (24), a main shaft (25), a rotor winding (26), winding lead wires (27), a collector ring (28), a brush (29) and a spring (30), wherein the middle part of the rotor core (23) is fixedly connected to the main shaft (25), the outer side of the main shaft (25) is fixedly connected to the middle part of the wind cover (11), the rotor winding (26) is a cage rotor winding, and the rotor winding (26) is wound around the rotor. The copper conductor bar (24) is welded and fixed to the outside of the rotor core (23); the winding lead wire (27) is wound and connected to the outside of the rotor winding (26); one end of the collector ring (28) is tightly fitted to the outer wall of the main shaft (25); the brush (29) is fixedly connected to the inside of the motor housing (2); and the two ends of the spring (30) are respectively fixedly connected to the brush (29) and the opposite side surfaces of the collector ring (28).

3. A motor according to claim 2, characterized in that: The rotor winding (26) comprises a first winding (31), a second winding (32) and a third winding (33), and the number of turns of any two phase windings in the first winding (31), the second winding (32) and the third winding (33) are different.

4. A motor according to claim 2, characterized in that: An even number of slot layers (17) are arranged inside the stator core (8), and a first coil group (18) and a second coil group (19) are also arranged inside the slot layers (17). The first coil group (18) and the second coil group (19) are arranged in the same layer and in adjacent slots, and the first coil group (18) and the second coil group (19) are respectively wound around all the slot layers (17) of the stator core (8).

5. A motor according to claim 4, characterized in that: The first coil group (18) and the second coil group (19) comprise a first conductor (20) and a second conductor (21); the cross-slot distance between the two welding ends of the first conductor (20) is long, and the cross-slot distance between the two welding ends of the second conductor (21) is short.

6. A motor according to claim 5, characterized in that: The welding end of the first conductor (20) is connected to the welding end of the adjacent second conductor (21) to form a conductor group (22); a plurality of the conductor groups (22) are connected to form the first coil group (18) and the second coil group (19); each conductor group (22) in the first coil group (18) corresponds to a conductor group (22) in the second coil group (19) according to a slot number.

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