Anti-loosening micromotor stator
By arranging winding grooves, enameled wires, arc plates and hollow pressure plates on the micromotor stator, and using locking brackets and spring mechanisms, the problem of loose enameled wires in the micromotor stator is solved, achieving higher stability and convenient disassembly. process.
Patent Information
- Application Number
- CN202421092410.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-17
- Publication Date
- 2025-01-21
- Estimated Expiration
- 2034-05-17
AI Technical Summary
During the use of the micromotor, due to the loose enameled wire on the stator, the leakage inductance increases, the power decreases, and even the micromotor heat generation is worsened.
A micromotor stator is designed to prevent loosening. By arranging winding grooves and enameled wires on the stator core, the first arc plate and the hollow pressure plate are fixedly connected above it, and the locking bracket and spring mechanism are used to ensure that the enameled wires are not easy to loosen. loose and at the same time easy to operate when disassembling.
It effectively prevents the enameled wire on the stator from loosening, reduces leakage inductance and power loss, avoids increased heat generation of the micromotor, and improves the convenience of operation during disassembly.
Smart Images
Figure CN222381418U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of micro motor stators, in particular to an anti-loosening micro motor stator. Background Art
[0002] At present, micro motors are mainly composed of stators, rotors and shells, among which the stator mainly includes a cylindrical stator core, a stator winding made of high-strength enameled wire, and an insulator for insulating the stator core and the stator winding. The rotor is a cylindrical permanent magnet, placed in the middle of the stator and separated from the stator by a gap. The stator winding on the stator is connected to an external power supply. When the external power supply is turned on, the current on the stator winding generates a magnetic field and attracts and repels the magnetic field on the rotor permanent magnet, thereby generating an electromagnetic torque to drive the rotor to rotate in the stator. However, during the use of micro motors, the enameled wire on the stator is often loose, resulting in increased leakage inductance, reduced power, and even increased heating of the micro motor. Utility Model Content
[0003] The purpose of the utility model is to solve the shortcomings existing in the prior art, such as: at present, during the use of the micromotor, the enameled wire on the stator is often loose, resulting in increased leakage inductance, reduced power, and even increased heating of the micromotor, and an anti-loosening micromotor stator is proposed.
[0004] In order to achieve the above purpose, the utility model adopts the following technical solutions:
[0005] A micromotor stator that prevents loosening comprises a stator core, wherein the inner wall of the stator core is provided with a winding groove, the inner wall of the winding groove and the left and right sides of the stator core are both wound with enameled wires, the upper and lower sides of the stator core are both fixedly connected with a first arc plate, the surface of the first arc plate and the left and right sides of the enameled wire are both fitted with a hollow pressure plate, the upper and lower sides of the hollow pressure plate are both provided with a positioning groove, the surface of the first arc plate is fixedly connected with a U-shaped plate, the surface of the U-shaped plate contacts the inner wall of the positioning groove, the side of the hollow pressure plate is fixedly connected with a locking bracket, and the inner wall of the U-shaped plate contacts the surface of the locking bracket.
[0006] Preferably, the locking bracket includes a first circular ring, and the upper and lower sides of the first circular ring are fixedly connected with locking plates, the inner wall of the U-shaped plate and the side of the hollow pressure plate are in contact with the surface of the locking plate, a sliding hole is opened inside the locking plate, and the inner wall of the sliding hole is fitted with a second circular ring, and the front and rear sides of the locking plate are fixedly connected with a first spring, and one end of the first spring away from the locking plate, the surface of the second circular ring and the side of the hollow pressure plate are fixedly connected with a connecting block, and the inner wall of the first spring is in contact with the surface of the second circular ring.
[0007] Preferably, air holes are provided inside the hollow pressure plate.
[0008] Preferably, the front and rear sides of the stator core are fixedly connected with a second arc plate, the left and right sides of the second arc plate are provided with a first groove, the front and rear sides of the hollow pressure plate are fixedly connected with a third arc plate, the inner wall of the first groove and the surface of the stator core are in contact with the surface of the third arc plate, the side of the third arc plate is provided with a second groove, the inner wall of the second groove is fixedly connected with a second spring, and one end of the second spring is in contact with the inner wall of the first groove.
[0009] Preferably, centers of the first circular ring, the second circular ring and the stator core are all on the same horizontal line.
[0010] Preferably, the first curved plate, the second curved plate and the third curved plate are all of equal thickness.
[0011] Compared with the prior art, the beneficial effects of the utility model are:
[0012] (1) The utility model can fix the hollow pressure plate on both sides of the stator core through the cooperation of the first arc plate, the hollow pressure plate, the positioning groove, the U-shaped plate and the locking bracket, and the enameled wire on the stator core is not easy to loosen through the pressure of the hollow pressure plate on the enameled wire.
[0013] (2) The utility model provides a second arc plate, a first groove, a third arc plate, a second groove and a second spring. When the locking plate on the locking bracket is separated from the U-shaped plate, the second spring pushes the third arc plate, so that the user can more easily separate the hollow pressure plate from the first arc plate, thereby making it more convenient to disassemble the hollow pressure plate on the stator of the micromotor. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 It is a schematic diagram of the structure of the utility model;
[0015] Figure 2 for Figure 1 Sectional view at AA;
[0016] Figure 3 for Figure 1 Sectional view at the middle BB;
[0017] Figure 4 for Figure 1 Sectional view at CC;
[0018] Figure 5 for Figure 4 Enlarged view of point D in the middle;
[0019] Figure 6 It is a side view of the stator core in the utility model;
[0020] Figure 7 It is a side view of the hollow pressing plate of the utility model;
[0021] Figure 8 It is a schematic diagram of the locking bracket in the utility model;
[0022] Fig. 9 It is a front view of the second curved plate in the utility model.
[0023] In the figure: 1, stator core; 2, winding groove; 3, enameled wire; 4, first arc plate; 5, hollow pressure plate; 6, positioning groove; 7, U-shaped plate; 8, locking bracket; 81, first circular ring; 82, locking plate; 83, sliding hole; 84, second circular ring; 85, first spring; 86, connecting block; 9, air vent; 10, second arc plate; 11, first groove; 12, third arc plate; 13, second groove; 14, second spring. DETAILED DESCRIPTION
[0024] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.
[0025] 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.
[0026] Embodiment 1:
[0027] Reference Figure 1-8A micromotor stator for preventing loosening includes a stator core 1, an inner wall of the stator core 1 is provided with a winding groove 2, an inner wall of the winding groove 2 and the left and right sides of the stator core 1 are both wound with enameled wires 3, the upper and lower sides of the stator core 1 are both fixedly connected with a first arc plate 4, the surface of the first arc plate 4 and the left and right sides of the enameled wire 3 are both fitted with a hollow pressing plate 5, the upper and lower sides of the hollow pressing plate 5 are both provided with positioning grooves 6, the surface of the first arc plate 4 is fixedly connected There is a U-shaped plate 7, the surface of the U-shaped plate 7 contacts the inner wall of the positioning groove 6. Through the cooperation of the U-shaped plate 7 and the positioning groove 6, after the hollow pressure plate 5 contacts the first arc-shaped plate 4, the hollow pressure plate 5 cannot rotate. A locking bracket 8 is fixedly connected to the side of the hollow pressure plate 5. The inner wall of the U-shaped plate 7 contacts the surface of the locking bracket 8. An air hole 9 is opened inside the hollow pressure plate 5. When the hollow pressure plate 5 presses the enameled wire 3, the heat of the enameled wire 3 can be discharged through the air hole 9.
[0028] The locking bracket 8 includes a first circular ring 81, and the upper and lower sides of the first circular ring 81 are fixedly connected with a locking plate 82, the inner wall of the U-shaped plate 7 and the side of the hollow pressure plate 5 are in contact with the surface of the locking plate 82, and a sliding hole 83 is opened inside the locking plate 82, and the inner wall of the sliding hole 83 is fitted with a second circular ring 84, and the centers of the first circular ring 81, the second circular ring 84 and the stator core 1 are all on the same horizontal line, and the front and rear sides of the locking plate 82 are fixedly connected with a first spring 85, and the first spring 85 is away from the locking plate 8 2, the surface of the second ring 84 and the side of the hollow pressure plate 5 are fixedly connected with a connecting block 86, the inner wall of the first spring 85 is in contact with the surface of the second ring 84, when the locking plate 82 is inserted into the U-shaped plate 7, the elastic force of the first spring 85 prevents the locking plate 82 from being separated from the U-shaped plate 7, and the hollow pressure plate 5 is fixed to the first arc plate 4 through the cooperation of the locking plate 82 and the U-shaped plate 7, when the locking plate 82 is separated from the U-shaped plate 7, the hollow pressure plate 5 can be separated from the first arc plate 4.
[0029] Embodiment 2:
[0030] Reference Figure 2-9The front and rear sides of the stator core 1 are fixedly connected with a second arc plate 10, and the left and right sides of the second arc plate 10 are provided with a first groove 11, and the front and rear sides of the hollow pressure plate 5 are fixedly connected with a third arc plate 12, and the thickness of the first arc plate 4, the second arc plate 10 and the third arc plate 12 are equal. The inner wall of the first groove 11 and the surface of the stator core 1 are in contact with the surface of the third arc plate 12, and the side of the third arc plate 12 is provided with a second groove 13, and the inner wall of the second groove 13 is fixedly connected with a second spring 14, and one end of the second spring 14 is in contact with the inner wall of the first groove 11. When the locking plate 82 on the locking bracket 8 is separated from the U-shaped plate 7, the second spring 14 pushes the third arc plate 12, so that the user can easily separate the hollow pressure plate 5 from the first arc plate 4, thereby making it more convenient to disassemble the hollow pressure plate 5 on the stator of the micromotor.
[0031] In the utility model, when assembling the stator of the micromotor, the user first winds the enameled wire 3 around the winding groove 2 and the stator core 1, then places the hollow pressing plate 5 between the upper and lower first arc-shaped plates 4, and makes the positioning groove 6 contact with the U-shaped plate 7, and then, by rotating the first ring 81, the locking plate 82 is staggered with the positioning groove 6, and the hollow pressing plate 5 is pushed to make the hollow pressing plate 5 contact with the enameled wire 3. After the hollow pressing plate 5 contacts with the enameled wire 3, the locking plate 82 is contacted with the inner wall of the U-shaped plate 7 by rotating the first ring 81. , and the elastic force of the first spring 85 prevents the locking plate 82 and the U-shaped plate 7 from automatically separating. At this time, the hollow pressure plate 5 is fixed to both sides of the stator core 1 through the cooperation of the locking plate 82 and the U-shaped plate 7, and the pressure of the hollow pressure plate 5 on the enameled wire 3 makes the enameled wire 3 on the stator core 1 not easy to loosen. When the hollow pressure plate 5 needs to be removed, the locking plate 82 is separated from the U-shaped plate 7 by rotating the first ring 81, and then the hollow circular plate can be separated from the first arc plate 4 by pulling the first ring 81.
[0032] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.
[0033] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.
Claims
1. A micromotor stator with an anti-loosening function, comprising a stator core (1), characterized in that: The inner wall of the stator core (1) is provided with a winding groove (2), and the inner wall of the winding groove (2) and the left and right sides of the stator core (1) are both wound with enameled wires (3). The upper and lower sides of the stator core (1) are both fixedly connected with a first arc plate (4), and the surface of the first arc plate (4) and the left and right sides of the enameled wire (3) are both fitted with a hollow pressure plate (5), and the upper and lower sides of the hollow pressure plate (5) are both provided with a positioning groove (6), and the surface of the first arc plate (4) is fixedly connected with a U-shaped plate (7), and the surface of the U-shaped plate (7) contacts the inner wall of the positioning groove (6), and the side of the hollow pressure plate (5) is fixedly connected with a locking bracket (8), and the inner wall of the U-shaped plate (7) contacts the surface of the locking bracket (8).
2. The anti-loosening micromotor stator according to claim 1, characterized in that: The locking bracket (8) comprises a first circular ring (81), and the upper and lower sides of the first circular ring (81) are fixedly connected to a locking plate (82), the inner wall of the U-shaped plate (7) and the side of the hollow pressure plate (5) are in contact with the surface of the locking plate (82), a sliding hole (83) is provided inside the locking plate (82), and the inner wall of the sliding hole (83) is fitted with a second circular ring (84), and the front and rear sides of the locking plate (82) are fixedly connected to a first spring (85), and one end of the first spring (85) away from the locking plate (82), the surface of the second circular ring (84) and the side of the hollow pressure plate (5) are fixedly connected to a connecting block (86), and the inner wall of the first spring (85) is in contact with the surface of the second circular ring (84).
3. The anti-loosening micromotor stator according to claim 1, characterized in that: The hollow pressing plate (5) is provided with a vent hole (9) inside.
4. The anti-loosening micromotor stator according to claim 1, characterized in that: The front and rear sides of the stator core (1) are fixedly connected to a second arc plate (10), the left and right sides of the second arc plate (10) are provided with a first groove (11), the front and rear sides of the hollow pressure plate (5) are fixedly connected to a third arc plate (12), the inner wall of the first groove (11) and the surface of the stator core (1) are in contact with the surface of the third arc plate (12), the side of the third arc plate (12) is provided with a second groove (13), the inner wall of the second groove (13) is fixedly connected to a second spring (14), and one end of the second spring (14) is in contact with the inner wall of the first groove (11).
5. The anti-loosening micromotor stator according to claim 2, characterized in that: The centers of the first circular ring (81), the second circular ring (84) and the stator core (1) are all on the same horizontal line.
6. The anti-loosening micromotor stator according to claim 4, characterized in that: The thicknesses of the first curved plate (4), the second curved plate (10) and the third curved plate (12) are all equal.