A motor stator coil former

Abstract

This utility model relates to a motor stator coil frame, which includes an upper coil frame and a lower coil frame that are inserted into each other. The upper coil frame includes an upper winding slot and an upper hanging pin assembly installed on the top of the upper winding slot. The lower coil frame includes a lower winding slot and a lower hanging pin assembly installed at the bottom of the lower winding slot. The upper and lower winding slots are inserted into each other. The upper and lower coil frames are made of insulating plastic material, which separates the coil from the segmented iron core, ensuring reliable insulation and eliminating the need for secondary insulation treatment of the stator. An external power supply line is connected to the pin to form a rigid connection, resulting in a high degree of automation and significantly reducing processing costs. This utility model's motor stator coil frame can be manufactured using automated equipment, making insertion convenient and quick. Stator winding, wire welding, and connection of the output wires can all be automated, saving time and labor, ensuring high reliability and consistency, and greatly improving production efficiency.

Description

Technical Field

[0001] This utility model relates to a stator coil frame for an electric motor, belonging to the field of electric motor manufacturing technology. Background Technology

[0002] Currently, the wiring of the bridging wires and power supply connections for the motor's electromagnetic coils all use flexible connections between the wires, and these connections are mostly made manually. This method has the following problems: (1) When using flexible connection bridge wires for wiring and connection, most of the bridge wires are twisted together, which may cause phase withstand voltage breakdown and safety hazards. This requires high requirements for the withstand voltage, enamel film thickness and continuity of the enameled wire, which greatly increases the production cost. (2) The joints using flexible connections require manual welding; after that, insulation wrapping and fixing binding are also required, which is not only labor-intensive and time-consuming, but also wastes materials, making it difficult to achieve large-scale automated production. (3) Because there are many connectors in the electromagnetic coil, especially the coil output connectors with taps, they need to be identified and distinguished, resulting in low production efficiency. (4) The use of flexible connection makes the insulation treatment of the winding coil to ground and between phases complicated, and the reliability and consistency of the quality are not easy to guarantee. Utility Model Content

[0003] The technical problem to be solved by this utility model is to provide a motor stator coil frame that is easy to insert and has separate insulation between the coil and the segmented iron core.

[0004] The present invention adopts the following technical solution: The stator coil frame of this utility model includes an upper coil frame and a lower coil frame that are inserted into each other; the upper coil frame includes an upper winding groove and an upper hanging pin assembly installed on the top of the upper winding groove; the lower coil frame includes a lower winding groove and a lower hanging pin assembly installed at the bottom of the lower winding groove; the upper winding groove and the lower winding groove are inserted into each other.

[0005] The upper winding groove of this utility model includes a top plate, an upper left U-shaped groove fixedly installed on the left end of the bottom surface of the top plate, and an upper right U-shaped groove fixedly installed on the right end of the bottom surface of the top plate; the bottom plates of the upper left U-shaped groove and the upper right U-shaped groove are vertically arranged and parallel to each other; the lower winding groove includes a bottom plate, a lower left U-shaped groove fixedly installed on the left end of the top surface of the bottom plate, and a lower right U-shaped groove fixedly installed on the right end of the top surface of the bottom plate; the bottom plates of the lower left U-shaped groove and the lower right U-shaped groove are vertically arranged and parallel to each other; the upper left U-shaped groove and the lower left U-shaped groove are inserted into each other, and the upper right U-shaped groove and the lower right U-shaped groove are inserted into each other, and the top plate and the bottom plate are parallel.

[0006] The present invention relates to an upper hanging pin assembly comprising an upper front baffle fixedly installed on the top surface of the front side plate of the upper left and upper right U-shaped grooves and on the top surface of the front side of the top plate; a plurality of upper pin posts fixedly installed at even intervals on the top surface of the upper front baffle; and a T-shaped hanging block A fixedly installed on the bottom front side of the upper pin posts; an upper insertion hole is provided on the top surface of the upper pin posts; and an upper rear baffle is installed on the top surface of the rear side plate of the upper left and upper right U-shaped grooves and on the top rear side of the top plate. The lower hanging pin assembly comprises a lower front baffle fixedly installed on the bottom surface of the front side plate of the lower left and lower right U-shaped grooves and on the front side of the bottom of the bottom plate; lower pin posts fixedly installed at intervals on the bottom surface of the lower front baffle; and a T-shaped hanging block B fixedly installed on the top front side of the lower pin posts; a lower insertion hole is provided on the bottom surface of the lower pin posts; and a lower rear baffle is installed on the bottom surface of the rear side plate of the lower left and lower right U-shaped grooves and on the rear side of the bottom of the bottom plate.

[0007] This utility model has an upper end plate installed on the bottom front side of the upper front baffle, and upper height blocks installed on the top surfaces of the left and right ends of the upper end plate respectively; a lower end plate is installed on the top front side of the lower front baffle, and lower height blocks are installed on the top surfaces of the left and right ends of the lower end plate respectively; the front sides of both the upper and lower end plates are arc-shaped.

[0008] This utility model has upper limit platforms of the same height circumferentially arranged on the outer side walls of the top of the upper left and upper right U-shaped grooves; and lower limit platforms of the same height circumferentially arranged on the inner side walls of the bottom of the lower left and lower right U-shaped grooves.

[0009] The present invention features vertically and evenly spaced reinforcing ribs on the front sides of both the upper and lower front baffles; and rounded corners at the top two corners of the upper rear baffle and the bottom two corners of the lower rear baffle.

[0010] The rear edges of the upper left and upper right U-shaped grooves, as well as the rear edges of the lower left and lower right U-shaped grooves of this utility model, are all chamfered, corresponding to the upper limit platform and the lower limit platform.

[0011] The positive effects of this utility model are as follows: The upper and lower coil frames are made of insulating plastic. The upper and lower winding slots are inserted into each other, which facilitates the installation and positioning of the segmented iron core. The coil is wound within the area enclosed by the upper front baffle, upper rear baffle, lower front baffle, and lower rear baffle. This separates the coil from the segmented iron core, ensuring reliable insulation and eliminating the need for secondary insulation treatment of the stator. Pins are inserted into the upper insertion hole of the upper pin post and the lower insertion hole of the lower pin post, with external power lines connected to the pins to form a rigid connection. This results in a high degree of automated production and significantly reduces processing costs. An upper end plate is installed on the front bottom of the upper front baffle, and a lower end plate is installed on the front top of the lower front baffle. Upper height blocks are installed on the top surfaces of the left and right ends of the upper end plate, and lower height blocks are installed on the top surfaces of the left and right ends of the lower end plate. The upper and lower height blocks prevent adjacent units from overlapping during installation, facilitating automated feeding.

[0012] The stator coil frame of this utility model can be manufactured using automated equipment, making insertion convenient and quick. Stator winding, wire welding, and connection of the lead wires can all be automated, saving time and labor, with high reliability, strong consistency, and high production efficiency, which greatly improves production benefits. Attached Figure Description

[0013] Appendix Figure 1 This is a schematic diagram of the structure of this utility model; Appendix Figure 2 This is a schematic diagram of the isometric structure of this utility model; Appendix Figure 3 This is a schematic diagram of the rear view structure of this utility model; Appendix Figure 4 This is a schematic diagram of the isometric structure of the upper coil frame of this utility model; Appendix Figure 5 This is a schematic diagram of the rear view of the upper coil frame structure of this utility model; Appendix Figure 6 This is a schematic diagram of the top plate structure of this utility model; Appendix Figure 7 This is a schematic diagram of the isometric structure of the lower coil frame of this utility model; Appendix Figure 8 This is a schematic diagram of the lower end plate structure of this utility model; Appendix Figure 9 This is a schematic diagram of the connection structure of the upper left U-shaped groove, the top plate, and the upper right U-shaped groove of this utility model; Appendix Figure 10 This is a schematic diagram of the lower limit platform structure of this utility model; Appendix Figure 11 This is a rear view schematic diagram of the lower coil frame structure of this utility model.

[0014] In the attached diagram: 1 Upper coil frame, 2 Lower coil frame, 3 Top plate, 4 Upper left U-shaped groove, 5 Upper right U-shaped groove, 6 Bottom plate, 7 Lower left U-shaped groove, 8 Lower right U-shaped groove, 9 Upper front baffle, 10 Upper pin post, 101 Upper insertion hole, 11 T-shaped wire hanging block A, 12 Upper rear baffle, 13 Lower front baffle, 14 Lower pin post, 15 T-shaped wire hanging block B, 16 Lower rear baffle, 17 Upper end plate, 18 Upper height block, 19 Lower end plate, 20 Lower height block, 21 Upper limit platform, 22 Lower limit platform, 23 Reinforcing rib. Detailed Implementation

[0015] In the description of this utility model, the appendix is ​​used. Figure 1 The position facing forward is the front, with attachments Figure 3 The position furthest from the viewpoint is the rear.

[0016] As attached Figure 1 , 2As shown in Figures 3, 4, 7, and 8, the stator coil frame of the motor of this utility model includes an upper coil frame 1 and a lower coil frame 2 that are inserted into each other; the upper coil frame 1 and the lower coil frame 2 are made of insulating plastic material. The upper coil frame 1 includes an upper winding groove and an upper hanging pin assembly installed on the top of the upper winding groove; the lower coil frame 2 includes a lower winding groove and a lower hanging pin assembly installed at the bottom of the lower winding groove; the upper winding groove and the lower winding groove are inserted into the segmented iron core.

[0017] As attached Figure 4 , 5 As shown in Figures 6 and 7, the upper winding groove of this utility model includes a top plate 3, a left upper U-shaped groove 4 fixedly installed on the left end of the bottom surface of the top plate 3, and a right upper U-shaped groove 5 fixedly installed on the right end of the bottom surface of the top plate 3; the bottom plates of the left upper U-shaped groove 4 and the right upper U-shaped groove 5 are vertically arranged and parallel to each other.

[0018] As attached Figure 6-11 As shown, the lower winding groove of this utility model includes a base plate 6, a lower left U-shaped groove 7 fixedly installed on the left end of the top surface of the base plate 6, and a lower right U-shaped groove 8 fixedly installed on the right end of the top surface of the base plate 6; the bottom plates of the lower left U-shaped groove 7 and the lower right U-shaped groove 8 are vertically arranged and parallel to each other; the upper left U-shaped groove 4 is inserted into the lower left U-shaped groove 7, and the upper right U-shaped groove 5 and the lower right U-shaped groove 8 are inserted, and after insertion, the top plate 3 and the base plate 6 are parallel. After the upper winding groove and the lower winding groove are inserted, the gap between the lower left U-shaped groove 7 and the lower right U-shaped groove 8 is the width of the teeth in the middle of the segmented iron core.

[0019] The front plates of the upper left U-shaped groove 4 and the upper right U-shaped groove 5, as well as the front plates of the lower left U-shaped groove 7 and the lower right U-shaped groove 8, are all arranged in an arc shape with the same curvature, while the curvature of the rear plate is smaller than that of the front plate. The width of the front plates of the upper left U-shaped groove 4 and the upper right U-shaped groove 5 is greater than the width of their rear plates, and the width of the front plates of the lower left U-shaped groove 7 and the lower right U-shaped groove 8 is greater than the width of their rear plates. In this way, several segmented iron cores with the same structure can be inserted along the circumferential direction to form a complete stator iron core.

[0020] As attached Figure 1-6 As shown, the upper pin assembly of this utility model includes an upper front baffle 9 fixedly installed on the top surface of the front side plate of the upper left U-shaped groove 4 and the upper right U-shaped groove 5 and the top surface of the front side plate 3; a plurality of upper pin posts 10 fixedly installed at even intervals on the top surface of the upper front baffle 9; and a T-shaped pin block A11 fixedly installed on the bottom front side of each upper pin post 10. An upper insertion hole 101 for inserting a pin is provided on the top surface of the upper pin post 10. In this embodiment, six upper pin posts 10 are provided, wherein the pin blocks of the upper pin posts 10 at the left and right ends of the upper front baffle 9 are L-shaped, and the four upper pin posts 10 between the left and right ends are equipped with T-shaped pin blocks A11. An upper rear baffle 12 is installed on the top surface of the rear side plate of the upper left U-shaped groove 4 and the upper right U-shaped groove 5 and the top surface of the rear side plate 3.

[0021] As attached Figure 2 , 7 As shown in Figure 8, the lower hanging pin assembly includes a lower front baffle 13 fixedly installed on the bottom surface of the front side plate of the lower left U-shaped groove 7 and the lower right U-shaped groove 8 and on the front side of the bottom of the base plate 6; a plurality of lower pin posts 14 fixedly installed at intervals on the bottom surface of the lower front baffle 13; and a T-shaped hanging block B15 fixedly installed on the top of the front side of the lower pin posts 14. A lower insertion hole 141 for inserting pins is provided on the bottom surface of the lower pin posts 14. In this embodiment, a lower pin post 14 is installed at both ends of the left and right bottom surfaces of the lower front baffle 13, and the hanging block installed on it is L-shaped. Two lower pin posts 14 are installed at intervals in the middle of the bottom surface of the lower front baffle 13, and T-shaped hanging blocks B15 are installed on these two lower pin posts 14 respectively. A lower rear baffle 16 is installed on the bottom surface of the rear side plate of the lower left U-shaped groove 7 and the lower right U-shaped groove 8 and on the rear side of the bottom surface of the base plate 6.

[0022] After the upper and lower winding slots are inserted: the coil is wound in the area enclosed by the upper front baffle 9, the upper rear baffle 12, the lower front baffle 13 and the lower rear baffle 16.

[0023] As attached Figure 2 , 4 As shown in Figure 7, this utility model has an upper end plate 17 installed on the front side of the bottom of the upper front baffle 9, and upper height blocks 18 installed on the top surfaces of the left and right ends of the upper end plate 17 respectively; the front side of the upper end plate 17 is arc-shaped; a lower end plate 19 is installed on the front side of the top of the lower front baffle 13, and lower height blocks 20 are installed on the top surfaces of the left and right ends of the lower end plate 19 respectively; the front side of the lower end plate 19 is arc-shaped.

[0024] As attached Figure 5 , 6 As shown in Figures 8 and 10, this utility model has upper limit platforms 21 of the same height circumferentially arranged on the outer side walls of the top of the upper left U-shaped groove 4 and the upper right U-shaped groove 5; and lower limit platforms 22 of the same height circumferentially arranged on the inner side walls of the bottom of the lower left U-shaped groove 7 and the lower right U-shaped groove 8. After the upper winding groove and the lower winding groove are inserted, the bottom surfaces of the upper left U-shaped groove 4 and the upper right U-shaped groove 5 contact the top surface of the lower limiting platform 22, and the top surfaces of the lower left U-shaped groove 7 and the lower right U-shaped groove 8 contact the bottom surface of the upper limiting platform 21, so that the inner and outer surfaces of the inserted parts are flat.

[0025] As attached Figure 2 As shown, the present invention provides vertically and evenly spaced reinforcing ribs 23 on the front sides of the upper front baffle 9 and the lower front baffle 13, which can enhance the strength of the upper front baffle 9 and the lower front baffle 13; the two top corners of the upper rear baffle 12 and the two bottom corners of the lower rear baffle 16 are rounded to accommodate the curvature of the segmented iron core pole shoe.

[0026] The rear edges of the upper left U-shaped groove 4 and the upper right U-shaped groove 5, as well as the rear edges of the lower left U-shaped groove 7 and the lower right U-shaped groove 8, are all chamfered, corresponding to the upper limit platform 21 and the lower limit platform 22, in order to adapt to the curvature of the segmented iron core pole shoe.

[0027] The upper coil frame 1 and lower coil frame 2 of this utility model are made of insulating plastic. During operation, the upper and lower winding slots are inserted into the segmented iron core, facilitating the installation and positioning of the segmented iron core. The coil is wound within the area enclosed by the upper front baffle 9, upper rear baffle 12, lower front baffle 13, and lower rear baffle 16, separating the coil from the segmented iron core, ensuring reliable insulation, and eliminating the need for secondary insulation treatment of the stator. Pins are inserted into the upper insertion hole 101 of the upper pin post 10 and the lower insertion hole 141 of the lower pin post 14, with external power lines connected to the pins to form a rigid connection. The high degree of automation in production significantly reduces processing costs. L-shaped hanging blocks, T-shaped hanging blocks A11 and B15 are used to isolate the wiring of multi-phase bridge lines. An upper end plate 17 is installed on the bottom front side of the upper front baffle 9, and a lower end plate 19 is installed on the top front side of the lower front baffle 13. Upper height blocks 18 are installed on the top surfaces of the left and right ends of the upper end plate 17, respectively. Lower height blocks 20 are installed on the top surfaces of the left and right ends of the lower end plate 19, respectively. The upper height blocks 18 and lower height blocks 20 prevent two adjacent components from overlapping during installation, facilitating automated feeding.

[0028] This utility model allows for convenient and quick insertion, and enables automated production of stator winding, wire welding, and wire connection. It saves time and effort, has high reliability and strong consistency, and has high production efficiency, greatly improving production benefits.

[0029] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions or improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A stator coil frame for an electric motor, characterized in that, It includes an upper coil frame (1) and a lower coil frame (2) that are plugged into each other. The upper coil frame (1) includes an upper winding groove and an upper hanging pin assembly installed on the top of the upper winding groove; the lower coil frame (2) includes a lower winding groove and a lower hanging pin assembly installed at the bottom of the lower winding groove. The upper winding slot and the lower winding slot are inserted into each other.

2. The motor stator coil frame according to claim 1, characterized in that, The upper winding groove includes a top plate (3), a left upper U-shaped groove (4) fixedly installed on the left end of the bottom surface of the top plate (3), and a right upper U-shaped groove (5) fixedly installed on the right end of the bottom surface of the top plate (3); the bottom plates of the left upper U-shaped groove (4) and the right upper U-shaped groove (5) are vertically arranged and parallel to each other; The lower winding groove includes a base plate (6), a lower left U-shaped groove (7) fixedly installed on the left end of the top surface of the base plate (6), and a lower right U-shaped groove (8) fixedly installed on the right end of the top surface of the base plate (6); the bottom plates of the lower left U-shaped groove (7) and the lower right U-shaped groove (8) are vertically arranged and parallel to each other; The upper left U-shaped groove (4) is inserted into the lower left U-shaped groove (7), the upper right U-shaped groove (5) and the lower right U-shaped groove (8) are inserted into the groove, and the top plate (3) and the bottom plate (6) are parallel.

3. The motor stator coil frame according to claim 2, characterized in that, The upper hanging pin assembly includes an upper front baffle (9) fixedly installed on the top surface of the front side plate of the upper left U-shaped groove (4) and the upper right U-shaped groove (5) and the top surface of the front side of the top plate (3), a number of upper pin posts (10) fixedly installed at even intervals on the top surface of the upper front baffle (9), and a T-shaped hanging block A (11) fixedly installed on the bottom of the front side of the upper pin posts (10); an upper insertion hole (101) is provided on the top surface of the upper pin posts (10); Install a rear baffle (12) on the top surface of the rear side plate of the upper left U-shaped groove (4) and the upper right U-shaped groove (5) and on the top surface of the rear side plate (3); The lower hanging pin assembly includes a lower front baffle (13) fixedly installed on the bottom surface of the front side plate of the lower left U-shaped groove (7) and the lower right U-shaped groove (8) and on the front side of the bottom of the base plate (6), a lower pin post (14) fixedly installed at intervals on the bottom surface of the lower front baffle (13), and a T-shaped hanging block B (15) fixedly installed on the top of the front side of the lower pin post (14); a lower insertion hole (141) is provided on the bottom surface of the lower pin post (14); Install a lower rear baffle (16) on the bottom surface of the rear side plate of the lower left U-shaped groove (7) and the lower right U-shaped groove (8) and on the rear side of the bottom surface of the base plate (6).

4. The motor stator coil frame according to claim 3, characterized in that, Install an upper end plate (17) on the bottom front side of the upper front baffle (9), and install height blocks (18) on the top surfaces of the left and right ends of the upper end plate (17). A lower end plate (19) is installed on the front side of the top of the lower front baffle (13), and lower height blocks (20) are installed on the top surfaces of the left and right ends of the lower end plate (19); the front sides of the upper end plate (17) and the lower end plate (19) are both arc-shaped.

5. A motor stator coil frame according to claim 4, characterized in that, Upper limit platforms (21) of the same height are circumferentially set on the outer side walls of the top of the upper left U-shaped groove (4) and the upper right U-shaped groove (5). Lower limit platforms (22) of the same height are circumferentially set on the inner sidewalls of the bottom of the lower left U-shaped groove (7) and the lower right U-shaped groove (8).

6. The motor stator coil frame according to claim 3, characterized in that, Reinforcing ribs (23) are evenly spaced vertically on the front sides of both the upper front baffle (9) and the lower front baffle (13). The top two corners of the upper rear baffle (12) and the bottom two corners of the lower rear baffle (16) are all rounded.

7. A motor stator coil frame according to claim 4, characterized in that, The rear edges of the upper left U-shaped groove (4) and the upper right U-shaped groove (5), as well as the rear edges of the lower left U-shaped groove (7) and the lower right U-shaped groove (8), are all chamfered, corresponding to the upper limit platform (21) and the lower limit platform (22).

Images