Winding method of copper flat wire rotor pole coil with heavy or interelectrode lead

Abstract

The invention discloses a winding method of a copper flat wire rotor pole coil with a heavy or interelectrode lead. Integrated winding forming of the heavy or interelectrode lead and the coil is achieved. Comprising an H-shaped base plate (1), a same-pole-phase-group inner-ring coil (14) and a same-pole-phase-group outer-ring coil (15), a lamination sheet (10) at the lowest end of a left lamination sheet group (3) is an outwards-extending lamination sheet, and a heavy-space lead forming embedding groove (11) is formed between the outwards-extending lamination sheet (10) at the lowest end and the H-shaped base plate (1); a backward cantilever plate (16) is connected to the left rear corner of the left top pressing plate (4), and an interelectrode lead embedding groove (17) is formed in the bottom end face of the backward cantilever plate; and taking the end of the L-shaped copper flat wire as a starting point for winding the inner ring coil of the same pole phase group, and winding a copper flat wire coil between the left lamination group and the right lamination group along the clockwise direction to obtain the inner ring coil of the same pole phase group with the flat copper wire heavy interval lead.

Description

Technical Field

[0001] The invention relates to a magnetic pole excitation coil of a generator rotor, in particular to a winding method of a copper flat wire rotor magnetic pole excitation coil with inter-residual or inter-polar lead wires. Background Art

[0002] The rotors of some three-phase brushless synchronous generators adopt a hidden pole structure. In the assembly process of the rotor poles of this motor, the winding of each concentric coil of the same pole phase group must be completed separately, and then each concentric coil must be embedded in the corresponding core slot of the same pole phase group. Then, each concentric coil is connected in series in sequence to form the N-pole excitation coil or S-pole excitation coil of the motor rotor. Finally, the N-pole excitation coil and the S-pole excitation coil are connected in series and connected to the excitation power supply, thereby forming an excitation circuit for the motor rotor pole. The N-pole magnetic pole or S-pole magnetic pole of the motor is formed by the power supply of the excitation power supply. Since the excitation coil of the same pole phase group is composed of a plurality of multi-turn coils of different sizes distributed in different wire embedding slots connected in series, each coil is wound separately on the coil mold, and the structure of the existing coil winding mold can only complete When forming the coil, the coil and the lead wire cannot be formed at one time. It is necessary to set up separate tooling for the heavy-inter-lead wire and the inter-pole lead wire, and make the heavy-inter-lead wire and the inter-pole lead wire on these two toolings respectively. Then, the heavy-inter-lead wire or the inter-pole lead wire is welded and connected to the two adjacent coils separately embedded in the corresponding core slots to realize the series connection of the excitation coil. This coil winding and connection method increases the connection welding points of the excitation coil, which increases the risk of winding welding and increases the tooling cost. How to reserve the heavy-inter-lead wire or the inter-pole lead wire at one time during the coil winding process to realize the integrated winding and forming of the heavy-inter-lead wire or the inter-pole lead wire and the coil? After the subsequent wire embedding is completed, it is only necessary to directly butt-weld the two adjacent groups of coils, which improves the pole assembly efficiency and reduces the welding points of the coil connection. This has become a problem that needs to be solved on site. Summary of the invention

[0003] The present invention provides a method for winding a copper flat wire rotor pole coil with a heavy inter-pole or inter-pole lead wire, which realizes the integrated winding forming of the heavy inter-pole lead wire or inter-pole lead wire and the coil, and greatly improves the reliability of the excitation coil.

[0004] The present invention solves the above technical problems through the following technical solutions: A tool for winding a copper flat wire rotor magnetic pole coil with preformed inter-inter-pole or inter-pole lead wires, comprising an H-shaped base plate, an inner coil of the same pole phase group and an outer coil of the same pole phase group, a center positioning strip is arranged in the middle of the H-shaped base plate, a left lamination group is arranged on the H-shaped base plate on the left side of the H-shaped base plate, a left top pressing plate is arranged on the top of the left lamination group, the H-shaped base plate, the left lamination group and the left top pressing plate are connected together by a left lamination clamping bolt, and on the left lamination group, parallel to each other, spaced apart in the up-down direction. A left embedded groove for winding flat copper wire is provided; a right lamination group is provided on the H-shaped base plate on the right side of the H-shaped base plate, a right top pressure plate is provided on the top of the right lamination group, the H-shaped base plate, the right lamination group and the right top pressure plate are connected together by the right lamination clamping bolts, and on the right lamination group, right embedded grooves for winding flat copper wire are provided at intervals and parallel to each other along the up and down directions; the lowest lamination of the left lamination group is an outward extending lamination, and a heavy lead forming embedded groove is provided between the lowest lamination extending outward and the H-shaped base plate.

[0005] A heavy lead end pressure plate fixing mechanism is arranged on the H-shaped base plate outside the heavy lead forming embedded groove, and a flat copper wire heavy lead of the inner circle coil of the same polar phase group is arranged in the heavy lead forming embedded groove.

[0006] A tool for winding a copper flat wire rotor magnetic pole coil with preformed inter-inter-pole or inter-pole lead wires, comprising an H-shaped base plate, an N-pole coil and an S-pole coil, a center positioning strip is arranged in the middle of the H-shaped base plate, a left lamination group is arranged on the H-shaped base plate on the left side of the H-shaped base plate, a left top pressing plate is arranged on the top of the left lamination group, the H-shaped base plate, the left lamination group and the left top pressing plate are connected together by a left lamination clamping bolt, and on the left lamination group, parallel to each other, spaced apart in the up-down direction. There is a left embedded groove for winding flat copper wire; a right lamination group is arranged on the H-shaped base plate on the right side of the H-shaped base plate, and a right top pressure plate is arranged on the top of the right lamination group. The H-shaped base plate, the right lamination group and the right top pressure plate are connected together by the right lamination clamping bolts, and on the right lamination group, right embedded grooves for winding flat copper wire are arranged at intervals and parallel to each other along the up and down directions; a rearward cantilever plate is connected to the left rear corner of the left top pressure plate, and an inter-electrode lead embedding groove is arranged on the bottom end surface of the rearward cantilever plate.

[0007] A heavy inter-pole lead end pressure plate fixing mechanism is arranged on the H-shaped base plate, and an inter-pole lead of the N-pole coil is arranged on the inter-pole lead embedding groove.

[0008] A method for winding a copper flat wire rotor pole coil with a heavy inter-lead wire is realized by a copper flat wire rotor pole coil winding tool with a heavy inter-lead wire preformed, the copper flat wire rotor pole coil winding tool with a heavy inter-lead wire preformed comprises an H-shaped base plate, an inner coil of the same pole phase group and an outer coil of the same pole phase group, a center positioning strip is arranged in the middle of the H-shaped base plate, a left lamination group is arranged on the H-shaped base plate on the left side of the H-shaped base plate, a left top pressing plate is arranged on the top of the left lamination group, the H-shaped base plate, the left lamination group and the left top pressing plate are connected together by a left lamination clamping bolt, and the left lamination group is arranged on the left lamination group. On the upper part, left embedded grooves for winding flat copper wires are arranged in parallel with each other at intervals in the up-down direction; a right lamination group is arranged on the H-shaped base plate on the right side of the H-shaped base plate, a right top pressing plate is arranged on the top of the right lamination group, the H-shaped base plate, the right lamination group and the right top pressing plate are connected together by right lamination clamping bolts, and right embedded grooves for winding flat copper wires are arranged in parallel with each other at intervals in the up-down direction on the right lamination group; the lowest lamination of the left lamination group is an outwardly extending lamination, and a heavy lead forming embedded groove is arranged between the lowest lamination extending outward and the H-shaped base plate; the winding method comprises the following steps: The first step is to take the copper flat wire wound around the inner coil of the same polar phase group, bend the end of the copper flat wire into an L shape, and fix and crimp it under the heavy lead end pressure plate fixing mechanism set on the H-shaped base plate; The second step is to use the end of the L-shaped copper flat wire as the starting point for winding the inner circle coil of the same pole phase group. First, embed the copper flat wire into the heavy lead forming embedding groove, and then wind the copper flat wire coil between the left lamination group and the right lamination group in a clockwise direction until the inner circle coil of the same pole phase group is completed, and obtain the inner circle coil of the same pole phase group with flat copper wire heavy lead.

[0009] The outer coil of the same pole phase group is wound by a copper flat wire rotor pole coil winding tooling preformed with a heavy lead wire, so that the end of the outer coil of the same pole phase group is directly welded and connected with the inner coil of the same pole phase group through the flat copper wire heavy lead wire to form the excitation coil of the same pole phase group.

[0010] A method for winding a copper flat wire rotor pole coil with an interpolar lead is performed by a copper flat wire rotor pole coil winding tool with preformed interpolar leads, the copper flat wire rotor pole coil winding tool with preformed interpolar leads comprises an H-shaped base plate, an N-pole coil and an S-pole coil, a center positioning strip is arranged in the middle of the H-shaped base plate, a left lamination group is arranged on the H-shaped base plate on the left side of the H-shaped base plate, a left top pressing plate is arranged on the top of the left lamination group, the H-shaped base plate, the left lamination group and the left top pressing plate are connected together by a left lamination clamping bolt, and a left lamination group is provided on the left lamination group. , left embedded grooves for winding flat copper wires are arranged in parallel with each other at intervals along the up-down direction; a right lamination group is arranged on the H-shaped base plate on the right side of the H-shaped base plate, a right top pressing plate is arranged on the top of the right lamination group, the H-shaped base plate, the right lamination group and the right top pressing plate are connected together by right lamination clamping bolts, and right embedded grooves for winding flat copper wires are arranged in parallel with each other at intervals along the up-down direction on the right lamination group; a rearward cantilever plate is connected at the left rear corner of the left top pressing plate, and an inter-electrode lead embedding groove is arranged on the bottom end surface of the rearward cantilever plate; the winding method comprises the following steps: Step 1: Take the copper flat wire wound with the N-pole coil, bend the end of the copper flat wire into an L shape, and fix and crimp it on the H-shaped base plate; The second step is to use the end of the L-shaped copper flat wire as the starting point for winding the N-pole coil, and wind the copper flat wire coil between the left lamination group and the right lamination group in a counterclockwise direction until the N-pole coil is completed, and wind the copper flat wire at the tail of the coil clockwise into the inter-pole lead embedding groove set on the bottom end surface of the rear cantilever plate to obtain an N-pole coil with an inter-pole lead.

[0011] The S-pole coil is wound by a copper flat wire rotor pole coil winding tooling which is preformed by an inter-pole lead, and the end of the S-pole coil is directly welded and connected with the N-pole coil by the inter-pole lead to form a series excitation coil.

[0012] The present invention solves the defects of corner flipping and severe thickening at turns commonly existing in the winding of large-section copper flat wires, and realizes the overlap of two coils and the one-time forming of the leads between adjacent pole coils during winding, which completely solves the problems of difficult bending of the leads and large dimensional deviation after the concentric coils are embedded, and ensures the standardization of the winding dimensions. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic structural diagram of a winding tool used for winding a coil with heavy lead wires according to the present invention; Figure 2 It is a schematic diagram of the connection structure of two adjacent coils of the same polarity phase group of the present invention; Figure 3 It is a structural schematic diagram of a winding tool used for winding a coil with an inter-electrode lead wire according to the present invention; Figure 4 It is a schematic diagram of the connection structure between the N-pole coil 19 and the S-pole coil 20 of the present invention; Figure 5 It is a structural schematic diagram of the coil winding tooling of the present invention; Figure 6 It is a diagram showing the matching relationship between the H-shaped base plate 1 and the center positioning strip 2 of the present invention; Figure 7 It is a schematic structural diagram of the H-shaped base plate 1 of the present invention. DETAILED DESCRIPTION

[0014] The present invention is described in detail below in conjunction with the accompanying drawings: A tool for winding a copper flat wire rotor magnetic pole coil with preformed inter-inter-polar or inter-polar lead wires, comprising an H-shaped base plate 1, an inner coil 14 of the same pole phase group and an outer coil 15 of the same pole phase group, a center positioning bar 2 is arranged in the middle of the H-shaped base plate 1, the length of the center positioning bar 2 determines the size of the winding coil, the left end of the center positioning bar 2 is connected to the left lamination group 3 through a mortise and tenon connection, and the right end of the center positioning bar 2 is connected to the right lamination group 6 through a mortise and tenon connection. The H-shaped base plate on the left side of the H-shaped base plate 1 1 is provided with a left lamination group 3, which is composed of a plurality of steel plates stacked together, and two adjacent steel plates are arranged in a staggered manner, and a left embedding groove 9 for winding a flat copper wire is formed on the outer side thereof, which is used to embed the copper flat wire into the groove when winding the coil, and a left top pressing plate 4 is provided at the top of the left lamination group 3, and the H-shaped base plate 1, the left lamination group 3 and the left top pressing plate 4 are connected together by a left lamination clamping bolt 5, and on the left lamination group 3, left U-shaped flat copper wire winding left embedding grooves 9 are provided in parallel with each other in an interval along the up-down direction. A right lamination group 6 is arranged on the H-shaped base plate 1 on the right side of the H-shaped base plate 1, and a right top pressing plate 7 is arranged on the top of the right lamination group 6. The H-shaped base plate 1, the right lamination group 6 and the right top pressing plate 8 are connected together by a right lamination clamping bolt 8. On the right lamination group 6, right U-shaped flat copper wire winding right embedding grooves 21 are arranged in parallel with each other in the up-down direction at intervals. The wound copper flat wire is embedded in the corresponding flat copper wire winding left embedding groove 9 and the flat copper wire winding right embedding groove 21 in a clockwise or counterclockwise annular manner. The coil is formed by the gap between the left lamination group 3 and the right lamination group 6 for turn-to-turn transition; the bottom lamination 10 of the left lamination group 3 is an outwardly extending lamination, and a heavy lead forming embedding groove 11 is provided between the outwardly extending bottom lamination 10 and the H-shaped base plate 1, and the outward extension size of the bottom lamination 10 is determined according to the length of the heavy lead of two adjacent same-pole phase group coils. When the coil is wound by the present winding tool, the coil body will be protruded at the starting end of the coil, and the heavy lead is naturally formed.

[0015] A heavy lead end pressure plate fixing mechanism 12 is arranged on the H-shaped base plate 1 outside the heavy lead forming embedded groove 11, and a flat copper wire heavy lead 13 of the inner circle coil 14 of the same polar phase group is arranged in the heavy lead forming embedded groove 11; the heavy lead end pressure plate fixing mechanism 12 is composed of a pressure plate and a top screw, and the pressure plate is fixed to the outer vertical surface of the H-shaped base plate 1 by connecting bolts, and the top screw is connected to the L-shaped head bent at the end of the copper flat wire to form the head of the copper flat wire winding.

[0016] A tool for winding a copper flat wire rotor magnetic pole coil with preformed inter-interpolar or inter-polar lead wires, comprising an H-shaped base plate 1, an N-pole coil 19 and an S-pole coil 20. The N-pole coil 19 and the S-pole coil 20 are connected in series through the inter-polar lead wire to form an excitation circuit. A center positioning strip 2 is arranged in the middle of the H-shaped base plate 1, a left lamination group 3 is arranged on the H-shaped base plate 1 on the left side of the H-shaped base plate 1, and a left top pressing plate 4 is arranged on the top of the left lamination group 3. The H-shaped base plate 1, the left lamination group 3 and the left top pressing plate 4 are connected together by a left lamination clamping bolt 5. On the left lamination group 3, flat copper wire winding left embedded grooves 9 are arranged in parallel with each other at intervals along the up-down direction; a right lamination group 6 is arranged on the H-shaped base plate 1 on the right side of the H-shaped base plate 1, and a right top pressing plate 7 is arranged on the top of the right lamination group 6 The H-shaped base plate 1, the right lamination group 6 and the right top pressure plate 8 are connected together by the right lamination clamping bolt 8. On the right lamination group 6, right embedding grooves 21 for winding flat copper wires are arranged in parallel with each other at intervals along the up and down directions; a rearward cantilever plate 16 is connected to the left rear corner of the left top pressure plate 4, and an inter-pole lead embedding groove 17 is arranged on the bottom end surface of the rearward cantilever plate 16; when the N-pole coil 19 is wound to the tail end by the tooling in a counterclockwise rotation, it is then wound clockwise into the inter-pole lead embedding groove 17 arranged on the bottom end surface of the rearward cantilever plate 16 to form an inter-pole lead 18, so that after the N-pole coil 19 and the S-pole coil 20 are subsequently embedded in the motor rotor core slot, the inter-pole lead 18 at the tail end of the N-pole coil 19 is directly butt-welded with the head of the N-pole coil 19 to realize the series connection of the two-pole coils.

[0017] A heavy lead end pressure plate fixing mechanism 12 is arranged on the H-shaped base plate 1, and an inter-pole lead 18 of the N-pole coil 19 is arranged on the inter-pole lead embedding groove 17; the heavy lead end pressure plate fixing mechanism 12 fixes the starting end of the copper flat wire for winding the coil, and then the coil is wound; after the N-pole coil 19 is wound, the S-pole coil 20 can be wound through this tooling.

[0018] A method for winding a copper flat wire rotor pole coil with a heavy inter-lead is realized by a copper flat wire rotor pole coil winding tool with a heavy inter-lead preformed, the copper flat wire rotor pole coil winding tool with a heavy inter-lead preformed comprises an H-shaped base plate 1, an inner coil 14 of the same pole phase group and an outer coil 15 of the same pole phase group, a center positioning strip 2 is arranged in the middle of the H-shaped base plate 1, a left lamination group 3 is arranged on the H-shaped base plate 1 on the left side of the H-shaped base plate 1, a left top pressing plate 4 is arranged on the top of the left lamination group 3, the H-shaped base plate 1, the left lamination group 3 and the left top pressing plate 4 are connected together by a left lamination clamping bolt 5, on the left lamination group 3, Left embedded grooves 9 for winding flat copper wires are arranged in parallel with each other at intervals in the up-down direction; a right lamination group 6 is arranged on the H-shaped base plate 1 on the right side of the H-shaped base plate 1, and a right top pressing plate 7 is arranged at the top of the right lamination group 6. The H-shaped base plate 1, the right lamination group 6 and the right top pressing plate 8 are connected together by a right lamination clamping bolt 8. On the right lamination group 6, right embedded grooves 21 for winding flat copper wires are arranged in parallel with each other at intervals in the up-down direction; the lowest lamination 10 of the left lamination group 3 is an outwardly extending lamination, and a heavy lead forming embedded groove 11 is arranged between the lowest lamination 10 extending outward and the H-shaped base plate 1; the winding method comprises the following steps: The first step is to take the copper flat wire wound around the inner coil 14 of the same polar phase group, bend the end of the copper flat wire into an L shape, and fix and crimp it under the heavy lead end pressure plate fixing mechanism 12 set on the H-shaped base plate 1; The second step is to use the end of the L-shaped copper flat wire as the starting point for winding the inner circle coil 14 of the same polar phase group. First, embed the copper flat wire into the heavy lead forming embedding groove 11, and then, wind the copper flat wire coil between the left lamination group 3 and the right lamination group 6 in a clockwise direction until the inner circle coil 14 of the same polar phase group is completed, and obtain the inner circle coil 14 of the same polar phase group with flat copper wire heavy lead 13; because the heavy lead forming embedding groove 11 extends outside the embedding grooves of other coils, the end of the wound coil forms the flat copper wire heavy lead 13; the outer circle coil 15 of the same polar phase group can also be wound by this tooling, except that the starting head is set in the winding embedding groove of other coils above the heavy lead forming embedding groove 11 during winding.

[0019] The outer ring coil 15 of the same pole phase group is wound by a copper flat wire rotor pole coil winding tooling preformed with a heavy lead wire; the inner ring coil 14 of the same pole phase group and the outer ring coil 15 of the same pole phase group respectively wound by this tooling are respectively embedded in the coil embedding slots on the electrode rotor core corresponding to the same pole phase group, and then the end of the outer ring coil 15 of the same pole phase group is directly welded and connected to the inner ring coil 14 of the same pole phase group through the flat copper wire heavy lead wire 13 to form the excitation coil of the same pole phase group.

[0020] A method for winding a copper flat wire rotor pole coil with an interpolar lead is performed by a copper flat wire rotor pole coil winding tool with preformed interpolar leads, the copper flat wire rotor pole coil winding tool with preformed interpolar leads comprises an H-shaped base plate 1, an N-pole coil 19 and an S-pole coil 20, a center positioning strip 2 is arranged in the middle of the H-shaped base plate 1, a left lamination group 3 is arranged on the H-shaped base plate 1 on the left side of the H-shaped base plate 1, a left top pressing plate 4 is arranged on the top of the left lamination group 3, the H-shaped base plate 1, the left lamination group 3 and the left top pressing plate 4 are connected together by a left lamination clamping bolt 5, and on the left lamination group 3, along In the up-down direction, left embedded grooves 9 for winding flat copper wires are arranged at intervals and parallel to each other; a right lamination group 6 is arranged on the H-shaped base plate 1 on the right side of the H-shaped base plate 1, and a right top pressing plate 7 is arranged at the top of the right lamination group 6. The H-shaped base plate 1, the right lamination group 6 and the right top pressing plate 8 are connected together by the right lamination clamping bolt 8. On the right lamination group 6, right embedded grooves 21 for winding flat copper wires are arranged at intervals and parallel to each other in the up-down direction; a rearward cantilever plate 16 is connected at the left rear corner of the left top pressing plate 4, and an inter-electrode lead embedding groove 17 is arranged on the bottom end surface of the rearward cantilever plate 16; the winding method comprises the following steps: The first step is to take the copper flat wire wound with the N-pole coil 19, bend the end of the copper flat wire into an L shape, and fix and crimp it on the H-shaped base plate 1; The second step is to use the end of the L-shaped copper flat wire as the starting point for winding the N-pole coil 19, and wind the copper flat wire coil between the left lamination group 3 and the right lamination group 6 in a counterclockwise direction until the N-pole coil 19 is completed, and wind the copper flat wire at the tail of the coil clockwise into the inter-pole lead embedding groove 17 set on the bottom end surface of the rear cantilever plate 16 to obtain the N-pole coil 19 with the inter-pole lead 18.

[0021] The S-pole coil 20 is wound by a copper flat wire rotor pole coil winding tooling preformed with an inter-pole lead, and after the N-pole coil 19 and the S-pole coil 20 are respectively embedded into the S-pole coil embedding groove and the N-pole coil embedding groove corresponding to the motor rotor, the end of the S-pole coil 20 is directly welded to the N-pole coil 19 through the inter-pole lead 18 to form a series excitation coil.

Claims

1. A method for winding a copper flat wire rotor pole coil with a heavy lead wire, which is realized by a copper flat wire rotor pole coil winding tool with a heavy lead wire preformed, the copper flat wire rotor pole coil winding tool with a heavy lead wire preformed, comprising an H-shaped base plate (1), an inner coil (14) of the same pole phase group and an outer coil (15) of the same pole phase group, a center positioning strip (2) is arranged in the middle of the H-shaped base plate (1), a left lamination group (3) is arranged on the H-shaped base plate (1) on the left side of the H-shaped base plate (1), a left top pressing plate (4) is arranged at the top of the left lamination group (3), the H-shaped base plate (1), the left lamination group (3) The left lamination group (3) is connected to the left top pressure plate (4) by a left lamination clamping bolt (5); left embedding grooves (9) for winding flat copper wires are arranged in parallel with each other at intervals along the vertical direction on the left lamination group (3); a right lamination group (6) is arranged on the H-shaped base plate (1) on the right side of the H-shaped base plate (1); a right top pressure plate (7) is arranged at the top of the right lamination group (6); the H-shaped base plate (1), the right lamination group (6) and the right top pressure plate (8) are connected together by a right lamination clamping bolt (8); right embedding grooves (21) for winding flat copper wires are arranged in parallel with each other at intervals along the vertical direction on the right lamination group (6); the invention is characterized in that: The bottommost lamination (10) of the left lamination group (3) is an outwardly extending lamination, and a heavy lead forming embedding groove (11) is provided between the outwardly extending bottommost lamination (10) and the H-shaped base plate (1); the winding method comprises the following steps: The first step is to take a copper flat wire wound around the inner coil (14) of the same polar phase group, bend the end of the copper flat wire into an L shape, and fix and crimp it under the heavy lead end pressure plate fixing mechanism (12) provided on the H-shaped base plate (1); The second step is to use the end of the L-shaped copper flat wire as the starting point for winding the inner circle coil (14) of the same polar phase group. First, the copper flat wire is embedded in the heavy lead wire forming embedding groove (11), and then the copper flat wire coil is wound between the left lamination group (3) and the right lamination group (6) in a clockwise direction until the inner circle coil (14) of the same polar phase group is completed, thereby obtaining the inner circle coil (14) of the same polar phase group with the flat copper wire heavy lead wire (13).

2. A method for winding a copper flat wire rotor pole coil with heavy lead wires according to claim 1, characterized in that: The outer coil (15) of the same pole phase group is wound by a copper flat wire rotor magnetic pole coil winding tooling preformed with a heavy lead wire, and the end of the outer coil (15) of the same pole phase group is directly welded and connected with the inner coil (14) of the same pole phase group through the flat copper wire heavy lead wire (13) to form the excitation coil of the same pole phase group.

3. A method for winding a copper flat wire rotor magnetic pole coil with interpolar leads, which is performed by a copper flat wire rotor magnetic pole coil winding tool with preformed interpolar leads, the copper flat wire rotor magnetic pole coil winding tool with preformed interpolar leads comprising an H-shaped base plate (1), an N-pole coil (19) and an S-pole coil (20), a center positioning strip (2) being arranged in the middle of the H-shaped base plate (1), a left lamination group (3) being arranged on the H-shaped base plate (1) on the left side of the H-shaped base plate (1), a left top pressing plate (4) being arranged at the top of the left lamination group (3), the H-shaped base plate (1), the left lamination group (3) and the left top pressing plate (4) being arranged at the top of the left lamination group (3), The plates (4) are connected together by a left lamination clamping bolt (5); on the left lamination group (3), left embedding grooves (9) for winding flat copper wires are arranged in parallel with each other at intervals along the vertical direction; a right lamination group (6) is arranged on the H-shaped base plate (1) on the right side of the H-shaped base plate (1); a right top pressure plate (7) is arranged at the top of the right lamination group (6); the H-shaped base plate (1), the right lamination group (6) and the right top pressure plate (8) are connected together by a right lamination clamping bolt (8); on the right lamination group (6), right embedding grooves (21) for winding flat copper wires are arranged in parallel with each other at intervals along the vertical direction; it is characterized in that A rearward cantilever plate (16) is connected to the left rear corner of the left top pressure plate (4), and an inter-electrode lead embedding groove (17) is provided on the bottom end surface of the rearward cantilever plate (16); the winding method comprises the following steps: The first step is to take the copper flat wire wound around the N-pole coil (19), bend the end of the copper flat wire into an L shape, and fix and crimp it onto the H-shaped base plate (1); The second step is to use the end of the L-shaped copper flat wire as the starting point for winding the N-pole coil (19), and to wind the copper flat wire coil between the left lamination group (3) and the right lamination group (6) in a counterclockwise direction until the N-pole coil (19) is completed, and the copper flat wire at the tail of the coil is wound clockwise into the inter-pole lead embedding groove (17) provided on the bottom end surface of the rearward cantilever plate (16), thereby obtaining the N-pole coil (19) with the inter-pole lead (18).

4. A method for winding a copper flat wire rotor pole coil with inter-pole leads according to claim 3, characterized in that: An S-pole coil (20) is wound using a copper flat wire rotor magnetic pole coil winding tooling preformed with an inter-pole lead wire, and an end of the S-pole coil (20) is directly welded to an N-pole coil (19) via an inter-pole lead wire (18) to form a series excitation coil.

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