Stator wiring structure of vector reluctance motor

Abstract

A stator wiring structure of a vector reluctance motor comprises a stator iron core, a plurality of pole teeth are arranged on the stator iron core, each pole tooth is sleeved with a winding formed by independently winding a flat wire, and wire ends at the head end and the tail end of each winding are fixed to the outer circle side and the inner circle side of an annular wire protection plate respectively. The annular wire protecting plate is provided with a plurality of sets of limiting protrusions used for fixing the position of a bus wire, the head end wire end of the first winding of each phase of the motor is connected with a controller through an electric wire, and the tail end wire end of each winding is welded to the head end wire end of the next winding in the mode that the bus wire crosses pole teeth with the same number as the phases of the motor. And the tail end wire head of the last winding of each phase of the motor is welded and connected through a lead wire.

Description

Technical Field

[0001] This utility model relates to a vector reluctance motor, specifically to the stator wiring structure of a vector reluctance motor. Background Technology

[0002] In existing flat-wire motors, stator wiring requires first bending the flat wire into the desired shape (such as a U-shape) using a special mold, then inserting the pre-formed flat wire into the stator slots, followed by twisting the ends of the flat wire using specialized equipment, and finally welding the ends of the flat wire using specialized welding equipment to form a complete winding circuit. This wiring method requires specialized forming molds, twisting equipment, and welding equipment, resulting in high production costs, cumbersome wiring, and numerous solder joints. If there are any incomplete solder joints, it can easily affect the motor's performance. Summary of the Invention

[0003] To address the aforementioned problems, this invention provides a stator wiring structure for a vector reluctance motor that is simple in structure, has few solder joints, high slot fill factor, and good consistency.

[0004] The technical solution of this utility model is as follows: a stator wiring structure for a vector reluctance motor, including a stator core, on which multiple pole teeth are provided, and each pole tooth is fitted with a winding made of flat wire. The beginning and end ends of each winding are fixed to the outer and inner circles of an annular wire guard plate, respectively. The annular wire guard plate is provided with multiple sets of limiting protrusions for fixing the position of the busbar. The beginning end of the first winding of each phase of the motor is connected to the controller through an electric wire. The end end of each winding is welded to the beginning end of the next winding through a busbar across the pole teeth with the same number of phases of the motor. The end end of the last winding of each phase of the motor is welded together through a connecting wire.

[0005] Preferably, both the busbar and the lead wire are flat wires and are arc-shaped.

[0006] Preferably, the winding is a pre-wound flat wire winding.

[0007] Preferably, the winding has 5 turns of coil.

[0008] Preferably, the winding is wound into a rectangular shape.

[0009] Preferably, the outer circumference of the annular wire guard plate extends to a wire mounting portion.

[0010] Preferably, the annular protective plate is provided with multiple heat dissipation holes.

[0011] Preferably, the winding adopts a star connection.

[0012] Preferably, the wire ends at both ends of the winding are fixed to the inner and outer circles of the annular wire guard plate by welding, respectively.

[0013] The advantages of this utility model are:

[0014] 1. The winding of this utility model is a pre-wound rectangular flat wire winding, with neat and compact wiring between the coils, high slot fill factor, and high motor efficiency.

[0015] 2. The winding ends of this utility model have a consistent height and tight wiring, resulting in good consistency.

[0016] 3. The winding of this utility model is rectangular. During the shaping process, the beginning and end of the winding are aligned towards the middle, making full use of space, reducing the size and weight of the motor, increasing its power, reducing the impact of temperature on its performance, resisting high and low temperatures, being able to withstand instantaneous large currents, having strong load-carrying capacity, and high efficiency. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the winding connection of this utility model;

[0019] Figure 3 This is a schematic diagram of the structure of the annular wire guard plate of this utility model;

[0020] Figure 4 This is a schematic diagram of the first structure of the winding of this utility model;

[0021] Figure 5 This is a schematic diagram of the second structure of the winding of this utility model. Detailed Implementation

[0022] See Figures 1 to 5A stator wiring structure for a vector reluctance motor includes a stator core 1 with multiple pole teeth. Each pole tooth is fitted with a winding 5 made of flat wire. The winding 5 is pre-wound using a general-purpose winding machine, resulting in low cost and simple structure. The winding 5 is wound into a rectangular shape to ensure consistency at the winding ends. The winding 5 has 5 turns of coil. The beginning and end wires of each winding 5 are welded to the outer and inner sides of an annular guard plate 2, respectively. The annular guard plate 2 has multiple sets of limiting protrusions 23 for fixing the busbar positions. An electrical wire mounting part 22 extends from the outer side of the annular guard plate 2. After the beginning wire of the first winding 5 of each phase of the motor is welded to the electrical wire mounting part 22, it is connected to the controller via an electrical wire 6. The end wire of each winding 5 is welded to the beginning wire of the next winding 5 via a busbar 3, spanning the same number of pole teeth as the motor phase. The end wire of the last winding 5 of each phase of the motor is welded to the controller via a connecting wire 4. Both the busbar 3 and the connecting wire 4 are flat wires and are arc-shaped, making it easy for the busbar 3 to be fixed and limited by the limiting protrusions 23 on the annular guard plate 2, preventing short circuits between the busbars 3. The annular guard plate 2 has multiple heat dissipation holes 21 for stator ventilation and heat dissipation. The windings 5 ​​are connected in a star configuration.

[0023] This utility model isolates the busbars 3 from each other by setting an annular protective plate 2, preventing the busbars 3 from coming into contact with each other and causing a short circuit. At the same time, the annular protective plate 2 also isolates the busbars 3 from the winding 5, avoiding a short circuit.

[0024] 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 made to the present utility model by those skilled in the art without departing from the spirit of the present utility model shall fall within the protection scope of the present utility model.

Claims

1. A stator wiring structure for a vector reluctance motor, comprising a stator core (1), wherein the stator core (1) is provided with a plurality of pole teeth, characterized in that: Each pole tooth is fitted with a winding (5) made of flat wire. The beginning and end ends of each winding (5) are fixed to the outer and inner sides of an annular wire guard plate (2). The annular wire guard plate (2) is provided with multiple sets of limiting protrusions (23) for fixing the position of the busbar (3). The beginning end of the first winding (5) of each phase of the motor is connected to the controller through wires (6). The end of each winding (5) is welded to the beginning end of the next winding (5) through the busbar (3) across the pole tooth with the same number of phases of the motor. The end of the last winding (5) of each phase of the motor is welded through a connecting wire (4).

2. The stator wiring structure of the vector reluctance motor according to claim 1, characterized in that: Both the busbar (3) and the lead wire (4) are flat wires and are arc-shaped.

3. The stator wiring structure of the vector reluctance motor according to claim 1, characterized in that: The winding (5) is a pre-wound flat wire winding.

4. The stator wiring structure of the vector reluctance motor according to claim 1, characterized in that: The winding (5) has 5 turns of coil.

5. The stator wiring structure of the vector reluctance motor according to claim 1, characterized in that: The winding (5) is wound into a rectangular shape.

6. The stator wiring structure of the vector reluctance motor according to claim 1, characterized in that: The outer circumference of the annular wire guard plate (2) extends to a wire mounting part (22).

7. The stator wiring structure of the vector reluctance motor according to claim 1, characterized in that: The annular protective plate (2) is provided with multiple heat dissipation holes (21).

8. The stator wiring structure of the vector reluctance motor according to claim 1, characterized in that: The winding (5) adopts a star connection.

9. The stator wiring structure of the vector reluctance motor according to claim 1, characterized in that: The beginning and end ends of the winding (5) are fixed to the inner and outer circles of the annular wire guard plate (2) by welding, respectively.

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