Motor stator winding structure

Abstract

The utility model discloses a motor stator winding structure, including setting at the outside of stator core's stator framework, the stator winding is coiled on the stator framework, the stator winding includes winding part, wire section and lead-out wire part, wherein winding part is coiled on the stator framework at the outside of stator tooth, forms wire section between adjacent winding part, and the one end of stator winding forms lead-out wire part, the stator framework forms winding side at the side close to motor rotor, and there is a plurality of winding column in annular distribution on winding side, wire section connects stator framework through winding column, and stator framework forms the outgoing line side at the side away from motor rotor, and the end of stator winding passes through stator framework and extends to outgoing line side and forms lead-out wire part. The utility model can reduce the space occupancy of motor stator in thickness direction, and the control of stator winding outgoing line position and outgoing line direction is convenient.

Description

Technical Field

[0001] This utility model relates to a washing machine motor, and more particularly to a motor stator winding structure. Background Technology

[0002] Currently, to facilitate the winding and output of the stator windings in washing machine motors, the winding side of the stator windings is generally located on the side of the stator frame furthest from the rotor. This allows the stator windings to extend directly outwards to form leads after winding. However, this winding method occupies space in the motor's thickness, increasing the overall thickness. Furthermore, the stator winding leads, after being wrapped in rubber, naturally bend outwards, further increasing the space occupied by the stator and making it more difficult for manufacturers to control the position and direction of the stator winding outputs.

[0003] Therefore, the stator windings of existing washing machine motors have problems such as large space occupation and inconvenience in controlling the position and direction of the outgoing wires. Utility Model Content

[0004] The purpose of this invention is to provide a motor stator winding structure. This structure reduces the space occupied by the motor stator in the thickness direction and facilitates control over the stator winding lead-out position and direction.

[0005] The technical solution of this utility model is as follows: a motor stator winding structure, including a stator frame disposed outside the stator core, a stator winding wound on the stator frame, the stator winding including a winding part, a routing part and a lead-out part, wherein the winding part is wound on the stator frame outside the stator teeth, a routing part is formed between adjacent winding parts, and a lead-out part is formed at one end of the stator winding. The stator frame forms a winding side on the side closer to the motor rotor, and a plurality of winding posts are distributed in a ring on the winding side. The routing part is connected to the stator frame through the winding posts. The stator frame forms a lead-out side on the side away from the motor rotor. The end of the stator winding extends through the stator frame to the lead-out side and forms a lead-out part.

[0006] In the aforementioned motor stator winding structure, an annular retaining ring is provided on the stator frame outside the winding column, and the height of the retaining ring is greater than that of the winding column.

[0007] In the aforementioned motor stator winding structure, an installation gap is formed between the stator frame and the motor rotor to accommodate the winding posts and the wiring section.

[0008] In the aforementioned motor stator winding structure, the stator frame is fastened to a lead wire frame on the lead wire side, and the lead wire frame is provided with a wire groove. After passing through the stator frame, the stator winding extends to the outside of the stator frame through the wire groove and forms a lead wire section.

[0009] In the aforementioned motor stator winding structure, a pressure plate is connected to the stator frame on one side of the lead frame, and the pressure plate is provided with a lead hole for the lead wire to pass through.

[0010] In the aforementioned motor stator winding structure, one end of the pressure plate is screwed to the stator frame, and the other end of the pressure plate is fastened to the stator frame. The lead-out portion between the pressure plate and the lead frame is in contact with the surface of the stator frame.

[0011] In the aforementioned motor stator winding structure, the stator frame is provided with several wire-passing slots, and the lead frame is fastened and connected to the outside of the wire-passing slots.

[0012] Compared with the prior art, this utility model has the following characteristics:

[0013] (1) This utility model sets the stator winding routing part on the side of the stator frame close to the motor rotor, so that it can use the installation gap between the motor stator and the motor rotor for routing, thereby avoiding the routing part occupying the external space of the motor and reducing the thickness of the motor stator; on this basis, by passing the end of the stator winding through the stator frame to form the lead wire part, the stable output of the stator winding can be achieved, which is convenient for the manufacturer to connect the stator winding.

[0014] (2) By limiting the structure of the lead frame, it can be pressed and guided after the lead wire extends out, so that the lead wire bends into a horizontal state after being pressed, thus avoiding the increase in the space occupied by the motor stator thickness due to the outward bending of the lead wire; on the other hand, it can also make the lead wire run along the circumference of the stator frame, thus facilitating the control of the position of the lead wire.

[0015] (3) Based on the lead frame, by limiting the structure of the pressure plate, it can press the end of the lead wire part, thereby cooperating with the lead frame to keep the lead wire part in close contact with the stator frame, further reducing the thickness space occupied by the motor stator; on the other hand, it can also bend the lead wire part twice and lead it outward through the wire groove, which is convenient for the manufacturer to control the direction of the stator winding output.

[0016] Therefore, this invention can reduce the space occupied by the motor stator in the thickness direction and facilitate the control of the stator winding output position and output direction. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure on the winding side of Embodiment 1;

[0018] Figure 2 This is a schematic diagram of the structure on the outgoing side of Embodiment 1;

[0019] Figure 3This is a schematic diagram of the lead frame installation on the stator frame;

[0020] Figure 4 This is a structural schematic diagram of Example 2;

[0021] Figure 5 This is a cross-sectional view of the winding post in Example 2.

[0022] The labels in the attached diagram are as follows: 1-stator frame, 2-winding section, 3-wire routing section, 4-lead wire section, 5-lead wire bracket, 6-wire pressing plate, 7-wire threading groove, 8-installation gap, 100-motor stator, 200-motor rotor, 101-winding side, 102-winding column, 103-lead wire exit side, 104-retaining ring. Detailed Implementation

[0023] The present invention will be further described below with reference to the accompanying drawings and embodiments, but this should not be construed as limiting the present invention.

[0024] Example 1. The stator winding structure of the motor is configured as follows: Figures 1-3 As shown, the stator includes a stator frame 1 disposed outside the stator core. The stator frame 1 is composed of two separate frame units that are interlocked. A stator winding is wound on the stator frame 1. The stator winding includes a winding section 2, a routing section 3, and a lead-out section 4. The winding section 2 is wound on the stator frame 1 outside the stator teeth. A routing section 3 is formed between adjacent winding sections 2. The routing section 3 is distributed in a ring along the circumference of the stator frame 1. One end of the stator winding extends outward to form a lead-out section 4 for connecting to an external circuit. The stator frame 1 forms a winding side 101 on the side closer to the motor rotor. Several winding posts 102 are distributed in a ring on the winding side 101. The routing section 3 is connected to the stator frame 1 via the winding posts 102. The stator frame 1 forms a lead-out side 103 on the side away from the motor rotor. The end of the stator winding extends through the stator frame 1 to the lead-out side 103 and forms a lead-out section 4.

[0025] An annular retaining ring 104 is provided on the stator frame 1 outside the winding post 102, and the height of the retaining ring 104 is greater than that of the winding post 102.

[0026] An installation gap is formed between the stator frame 1 and the motor rotor to accommodate the winding post 102 and the wiring part 3; the winding post 102 and the wiring part 3 are separated from the motor rotor after the motor stator is installed.

[0027] The stator frame 1 is connected to a lead wire frame 5 on the lead wire side 103. The two ends of the lead wire frame 5 are fastened to the stator frame 1 by clamps. The lead wire frame 5 is provided with a wire groove. After the stator winding passes through the stator frame 1, it extends to the outside of the stator frame 1 through the wire groove and forms the lead wire part 4.

[0028] A pressure plate 6 is connected to the stator frame 1 on one side of the lead frame 5. The pressure plate 6 is provided with a wire outlet hole for the lead wire part 4 to pass through. After passing through the wire outlet hole, the lead wire part 4 extends radially outward.

[0029] One end of the pressure plate 6 is screwed to the stator frame 1, and the other end of the pressure plate 6 is fastened to the stator frame 1. The lead wire portion 4 between the pressure plate 6 and the lead frame 5 is in contact with the surface of the stator frame 1.

[0030] The stator frame 1 is provided with several wire slots 7. The lead frame 5 is fastened to the outside of the wire slots 7 and the wire slots and wire slots 7 are interconnected, so that the winding wire can extend to the outside through the wire slots after passing through the wire slots 7.

[0031] In this embodiment, the stator winding routing section 3 and the lead wire section 4 are respectively arranged on the inner and outer sides of the motor stator, so that the routing section 3 can utilize the installation gap between the motor stator and the motor rotor for routing, thereby effectively shortening the space occupied by the motor stator in the thickness direction and improving its space utilization.

[0032] Based on the above, the lead wire frame 5 and the pressure plate 6 work together to press and guide the lead wire part 4 after passing through the wire groove 7, so that it fits against the surface of the stator frame 1, reducing the amount of space occupied by the lead wire part 4 in the thickness of the motor stator; on the other hand, it can move the lead wire part 4 along the circumference of the stator frame 1 to a designated position and then extend outward, thus facilitating the manufacturer to control the exit position and exit direction of the lead wire part 4.

[0033] Example 2. Motor, configuration Figures 4-5 As shown, the device includes a motor stator 100 and a motor rotor 200. The motor stator 100 includes the motor stator winding structure of Embodiment 1. An installation gap 8 is formed between the stator frame 1 and the motor rotor. The wiring part 3, the winding post 102 and the retaining ring 104 are all located in the installation gap 8. The pole-to-slot ratio of the motor stator 100 and the motor rotor 200 is 3:2, and the number of slots in the motor stator 100 is 15.

[0034] This embodiment enables the application of the motor stator winding structure in Embodiment 1. Based on this, by limiting the pole-to-slot ratio of the motor stator 100 and the motor rotor 200, the efficiency of the washing machine motor can be improved.

Claims

1. A stator winding structure for an electric motor, comprising a stator frame (1) disposed outside the stator core, wherein a stator winding is wound on the stator frame (1), the stator winding comprising a winding portion (2), a routing portion (3), and a lead portion (4), wherein the winding portion (2) is wound on the stator frame (1) outside the stator teeth, a routing portion (3) is formed between adjacent winding portions (2), and a lead portion (4) is formed at one end of the stator winding, characterized in that: The stator frame (1) forms a winding side (101) on the side near the motor rotor. Several winding posts (102) are distributed in a ring on the winding side (101). The wiring part (3) is connected to the stator frame (1) via the winding posts (102). The stator frame (1) forms a lead-out side (103) on the side away from the motor rotor. The end of the stator winding extends through the stator frame (1) to the lead-out side (103) and forms a lead-out part (4).

2. The motor stator winding structure according to claim 1, characterized in that: The stator frame (1) outside the winding post (102) is provided with an annular retaining ring (104), and the height of the retaining ring (104) is greater than that of the winding post (102).

3. The motor stator winding structure according to claim 1, characterized in that: An installation gap is formed between the stator frame (1) and the motor rotor to accommodate the winding post (102) and the wiring section (3).

4. The motor stator winding structure according to claim 1, characterized in that: The stator frame (1) is fastened to the lead frame (5) on the lead side (103). The lead frame (5) is provided with a wire groove. The stator winding passes through the stator frame (1) and extends to the outside of the stator frame (1) through the wire groove to form the lead part (4).

5. The motor stator winding structure according to claim 4, characterized in that: A pressure plate (6) is connected to the stator frame (1) on one side of the lead frame (5), and the pressure plate (6) is provided with a wire outlet hole for the lead wire part (4) to pass through.

6. The motor stator winding structure according to claim 5, characterized in that: One end of the pressure plate (6) is screwed to the stator frame (1), and the other end of the pressure plate (6) is fastened to the stator frame (1). The lead wire part (4) between the pressure plate (6) and the lead frame (5) and the surface of the stator frame (1) are in contact with each other.

7. The motor stator winding structure according to claim 4, characterized in that: The stator frame (1) is provided with several wire slots (7), and the lead frame (5) is fastened to the outside of the wire slots (7).

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