End winding displacement structure of multi-phase multi-parallel vertical winding flat wire motor

Abstract

The invention relates to a multi-phase multi-parallel vertical winding flat wire motor end part winding displacement structure applied to the field of motor winding displacement, which comprises a machine base, a plurality of iron cores are arranged on the inner ring of the machine base, and a parallel one-phase winding, a parallel two-phase winding and a parallel three-phase winding are sequentially arranged on the plurality of iron cores. The adjacent one-phase winding, the two-phase winding and the three-phase winding are arranged to be a single electric group, the multiple single electric groups are distributed in a quadrant mode, the head ends of the one-phase winding, the two-phase winding and the three-phase winding are fixedly connected with a first connector, a second connector and a third connector respectively, and the tail ends of the one-phase winding, the two-phase winding and the three-phase winding are fixedly connected with tail connectors respectively. According to the multi-phase winding, the heat dissipation channels are reserved between the end flat cables of the multi-phase winding, so that the end flat cables are more regular and uniform, the compactness of the flat cables is ensured, the installation space of the end parts is saved, meanwhile, the forced heat dissipation wind can be guided, the implementation difficulty of forced heat dissipation of the flat cables is reduced, and the heat dissipation effect is improved.

Description

Technical Field

[0001] The invention relates to a motor end wiring structure, in particular to a multi-phase multi-parallel vertically wound flat wire motor end wiring structure applied in the motor wiring field. Background Art

[0002] The winding and end arrangement of the motor stator are key steps in motor manufacturing. Reasonable arrangement methods can improve the efficiency and reliability of the motor. Flat wire motors specifically change the shape of the wire used in the stator winding from multiple thin round wires to several thick rectangular wires, commonly known as flat wires. The Chinese invention patent with application number CN202010568191.7 discloses a flat wire vertically wound motor winding, a motor stator and a flat wire vertically wound motor. The vertical winding method also greatly reduces thermal resistance, improves heat dissipation capacity and increases the torque density of the motor.

[0003] At present, the arrangement of this winding structure is not regular. When the winding at the end needs to be forced to be air-cooled, the wind cannot blow through each winding regularly and evenly. Therefore, forced heat dissipation is difficult to achieve and the heat dissipation efficiency is low, so further improvement is needed. Summary of the invention

[0004] In view of the above-mentioned prior art, the technical problem to be solved by the present invention is that when the winding structure is arranged irregularly and the windings at the ends need to be forced to be air-cooled, the wind cannot blow through each winding regularly and evenly, resulting in high difficulty in achieving forced heat dissipation and low heat dissipation efficiency.

[0005] In order to solve the above problems, the present invention provides a multi-phase multi-parallel vertically wound flat wire motor end wiring structure, including a machine base, the inner ring of the machine base is equipped with twenty-four iron cores, and the multiple iron cores are sequentially equipped with parallel one-phase windings, parallel two-phase windings and parallel three-phase windings. The adjacent one-phase windings, two-phase windings and three-phase windings are arranged as single-phase groups, and four single-phase groups are arranged, and the four single-phase groups are distributed in quadrants. The head ends of the one-phase winding, the two-phase winding and the three-phase winding are respectively fixedly connected with one joint, two joints and three joints, and the tail ends of the one-phase winding, the two-phase winding and the three-phase winding are all fixedly connected with tail connectors. The three tail connectors on each single-phase group are fixedly connected with connecting wires, and the single-phase windings are connected to the motor. The lengths of the first joint, the second joint, and the third joint in the limit decrease successively, the heights of the first joint, the second joint, and the third joint in the third and fourth quadrants are greater than the heights of the first joint, the second joint, and the third joint in the first and second quadrants, the area where the base is located between the third and fourth quadrants is set as a line collection area, one end of the first joint, the second joint, and the third joint are respectively fixedly connected with arc-shaped external wiring, middle wiring, and internal wiring, the external wiring, middle wiring, and internal wiring in the first and second quadrants overlap with the external wiring, middle wiring, and internal wiring in the third and fourth quadrants, one end of the external wiring, middle wiring, and internal wiring all extend to one side of the line collection area, and heat dissipation channels are set between the external wiring and the middle wiring, and between the middle wiring and the internal wiring.

[0006] As a further improvement of the present application, the first connector, the second connector, and the third connector in the single power group are distributed in order from top to bottom, and the first connector, the second connector, and the third connector in the second and third quadrants and the first connector, the second connector, and the third connector in the first and fourth quadrants are symmetrically arranged.

[0007] As a further improvement of the present application, a protective cover is fixedly connected to the end of the machine base, and an upper partition plate is fixedly connected to the middle of the top of the protective cover.

[0008] As a further improvement of the present application, the inner wall of the protective cover is fixedly connected with an outer blocking plate, a middle blocking plate, and an inner blocking plate that match the outer wiring, the middle wiring, and the inner wiring.

[0009] As another improvement of the present application, the outer blocking plate, the middle blocking plate and the inner blocking plate are respectively used to fill the gap between adjacent outer connecting wires, middle connecting wires and inner connecting wires.

[0010] As another improvement supplement to the present application, air inlet holes are provided at one end of a phase winding located on both sides of the upper partition plate, and a leak-proof plate is fixedly connected between the end of the inner blocking plate away from the inner wiring and the upper partition plate.

[0011] As another improvement supplement of the present application, a lower partition plate is fixedly connected to the middle part of the bottom end of the protective cover, air outlet holes are opened at one end of a phase winding located on both sides of the lower partition plate, and temperature sensors are fixedly connected to the side walls on both sides of the lower partition plate.

[0012] As another improved supplement of the present application, the protective cover is slidably connected to a wind plate at one end of the heat dissipation channel, the top of the protective cover near the wind plate is fixedly connected to a bracket, the top of the wind plate is fixedly connected to a door rod, and the door rod is slidably connected to the bracket.

[0013] As another improved supplement of the present application, a pressure tube is fixedly connected to one end of the bracket close to the door rod, a piston is slidably connected to the inner wall of the pressure tube, a push rod is fixedly connected to the top of the piston, and the push rod is fixedly connected to the door rod.

[0014] As another improved supplement of the present application, the protective cover is fixedly connected to a heating strip at the top of the heat dissipation channel, the bottom end of the heating strip extends to the inner side of the heat dissipation channel and is fixedly connected to a heat conducting plate, and an air pipe is connected between the top end of the heating strip and the bottom end of the pressure tube.

[0015] In summary, by reserving a heat dissipation channel between the end wirings of the multi-phase winding, the end wirings are made more regular and uniform, thereby ensuring the compactness of the wirings and saving the installation space at the ends. At the same time, the forced heat dissipation wind can be guided, thereby reducing the difficulty of implementing the forced heat dissipation of the wirings and improving the heat dissipation effect.

[0016] By filling and leveling the external wiring, the air inlet can be used as an air inlet to blow air into the interior of the base. At the same time, the outer blocking plate, middle blocking plate, and inner blocking plate can guide the wind into the heat dissipation channel and discharge it outward through the air outlet, thereby playing a role in cooling the wiring at the end of the base.

[0017] By setting up temperature sensors, etc., the temperature difference of the wiring can be detected to determine the working status of the motor, which is more conducive to the maintenance of the motor. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 A top view of the base in the first and second embodiments of the present application; Figure 2 A top view of the external wiring in the third and fourth quadrants in the first and second embodiments of the present application; Figure 3 A three-dimensional view of the end of the base in the first and second embodiments of the present application; Figure 4 A three-dimensional diagram of the blocking plate in the first and second embodiments of the present application; Figure 5 A three-dimensional diagram of the connection points in the first and second embodiments of the present application; Figure 6 This is a structural diagram of the adjacent middle wirings being separated in the first and second embodiments of the present application; Figure 7 This is a positional relationship diagram of the middle blocking plate and the middle connecting wire in the second embodiment of the present application; Figure 8This is a top view of the protective cover in the second embodiment of the present application; Fig. 9 This is a side cross-sectional view of the heated strip and the pressure tube in the second embodiment of the present application.

[0019] Description of the numbers in the figure: 1. Machine base; 2. Iron core; 3. One-phase winding; 301. One joint; 4. Two-phase winding; 401. Two joints; 5. Three-phase winding; 501. Three joints; 6. Tail connector; 7. Connection; 8. Collection area; 9. External connection; 10. Middle connection; 11. Internal connection; 12. Heat dissipation channel; 13. Protective cover; 14. Upper partition plate; 15. External blocking plate; 16. Middle blocking plate; 17. Internal blocking plate; 18. Air inlet; 19. Lower partition plate; 20. Air outlet; 21. Temperature sensor; 22. Leakage-proof plate; 23. Air plate; 24. Bracket; 25. Door rod; 26. Pressure pipe; 27. Piston; 28. Push rod; 29. ​​Heating strip; 30. Heat conduction plate; 31. Air pipe. DETAILED DESCRIPTION

[0020] Two implementation modes of the present application are described in detail below with reference to the accompanying drawings.

[0021] The first implementation method: Figure 1-Figure 6 The end wiring structure of a multi-phase multi-parallel vertically wound flat wire motor is shown, including a base 1, an inner ring of the base 1 is equipped with twenty-four iron cores 2, and a plurality of iron cores 2 are sequentially equipped with parallel one-phase windings 3, parallel two-phase windings 4 and parallel three-phase windings 5, and adjacent one-phase windings 3, two-phase windings 4 and three-phase windings 5 ​​are arranged as single-phase groups, and four single-phase groups are arranged, and the four single-phase groups are distributed in quadrants, and the head ends of the one-phase winding 3, the two-phase winding 4 and the three-phase winding 5 are respectively fixedly connected with a connector 301, a second connector 401 and a third connector 501, and the tail ends of the one-phase winding 3, the two-phase winding 4 and the three-phase winding 5 are all fixedly connected with a tail connector 6, and a connection line 7 is fixedly connected between the three tail connectors 6 on each single-phase group, and the length of the one connector 301, the two connectors 401 and the three connectors 501 in a single quadrant In descending order, the heights of the first connector 301, the second connector 401, and the third connector 501 in the third and fourth quadrants are greater than the heights of the first connector 301, the second connector 401, and the third connector 501 in the first and second quadrants. The area of ​​the base 1 between the third and fourth quadrants is set as a line collection area 8, and one end of the first connector 301, the second connector 401, and the third connector 501 are respectively fixedly connected with an arc-shaped external wire 9, a middle wire 10, and an internal wire 11. The external wire 9, the middle wire 10, and the internal wire 11 in the first and second quadrants overlap with the external wire 9, the middle wire 10, and the internal wire 11 in the third and fourth quadrants. One ends of the external wire 9, the middle wire 10, and the internal wire 11 all extend to one side of the line collection area 8, and a heat dissipation channel 12 is set between the external wire 9 and the middle wire 10, and between the middle wire 10 and the internal wire 11.

[0022] The above arrangement reserves a heat dissipation channel 12 between the end wirings of the multi-phase winding, making the end wiring more regular and uniform, ensuring the compactness of the wiring, saving the installation space of the end, and at the same time guiding the wind for forced heat dissipation, reducing the difficulty of implementing forced heat dissipation of the wiring, and improving the heat dissipation effect.

[0023] The first connector 301, the second connector 401, and the third connector 501 in the single-power group are distributed in order from top to bottom. The first connector 301, the second connector 401, and the third connector 501 in the second and third quadrants and the first connector 301, the second connector 401, and the third connector 501 in the first and fourth quadrants are symmetrically arranged. Through the above arrangement, the wiring structure of the external wiring 9, the middle wiring 10, and the internal wiring 11 in the second and third quadrants is the same as that of the external wiring 9, the middle wiring 10, and the internal wiring 11 in the first and fourth quadrants and is symmetrically arranged.

[0024] The second implementation method: Figure 1-Figure 9 The wiring arrangement structure of the end of a multi-phase and multi-parallel vertically wound flat wire motor is shown. Different from the first embodiment, a protective cover 13 is fixedly connected to the end of the base 1, an upper partition plate 14 is fixedly connected to the middle of the top of the protective cover 13, and an outer blocking plate 15, a middle blocking plate 16, and an inner blocking plate 17 matching the external wiring 9, the middle wiring 10, and the internal wiring 11 are fixedly connected to the inner wall of the protective cover 13. The outer blocking plate 15, the middle blocking plate 16, and the inner blocking plate 17 are respectively used to fill the gap between adjacent external wirings 9, the middle wiring 10, and the internal wiring 11. An air inlet hole 18 is opened at one end of a phase winding 3 located on both sides of the upper partition plate 14, and a leak-proof plate 22 is fixedly connected between the end of the inner blocking plate 17 away from the internal wiring 11 and the upper partition plate 14.

[0025] Through the above arrangement, the air inlet 18 can be used as an air inlet to blow air into the interior of the base 1. At the same time, the outer blocking plate 15, the middle blocking plate 16, and the inner blocking plate 17 can guide the wind into the interior of the heat dissipation channel 12 and discharge it outward through the air outlet 20, thereby playing a role in heat dissipation for the wiring at the end of the base 1.

[0026] A lower partition plate 19 is fixedly connected to the middle of the bottom end of the protective cover 13, and air outlet holes 20 are provided at one end of a phase winding 3 located on both sides of the lower partition plate 19. Temperature sensors 21 are fixedly connected to the side walls on both sides of the lower partition plate 19. The two temperature sensors 21 can monitor the temperature of the air blown out from the air outlet holes 20 on both sides. Since the external wiring 9, middle wiring 10, and internal wiring 11 in the first and third quadrants and the second and fourth quadrants are symmetrically distributed, the heat generated by the external wiring 9, middle wiring 10, and internal wiring 11 in the first and third quadrants and the second and fourth quadrants is the same. When there is a temperature difference in the external wiring 9, middle wiring 10, and internal wiring 11 in the first and third quadrants or the second and fourth quadrants, the motor can be maintained.

[0027] The protective cover 13 is located at one end of the heat dissipation channel 12 and is slidably connected to a wind plate 23. The top of the protective cover 13 near the wind plate 23 is fixedly connected to a bracket 24. The top of the wind plate 23 is fixedly connected to a door rod 25, and the door rod 25 is slidably connected to the bracket 24. The end of the bracket 24 near the door rod 25 is fixedly connected to a pressure pipe 26. The inner wall of the pressure pipe 26 is slidably connected to a piston 27. The top of the piston 27 is fixedly connected to a push rod 28, and the push rod 28 is fixedly connected to the door rod 25. The top of the heat dissipation channel 12 is fixedly connected to a heating strip 29. The bottom end of the heating strip 29 extends to the inner side of the heat dissipation channel 12 and is fixedly connected to a heat conducting plate 30. An air pipe 31 is connected between the top of the heating strip 29 and the bottom of the pressure pipe 26.

[0028] Since the temperatures of the one-phase winding 3, the two-phase winding 4, and the three-phase winding 5 are usually not exactly the same during operation, the temperatures inside the multiple heat dissipation channels 12 are also different. Through the above arrangement, the temperature inside the heat dissipation channel 12 can be transmitted to the inside of the heated strip 29 through the heat conducting plate 30. At this time, the increased air pressure in the heated strip 29 pushes the piston 27 to move upward. When the piston 27 moves upward, the air plate 23 is driven to move upward through the door rod 25. When the temperatures inside the multiple heat dissipation channels 12 are different, the rising heights of the corresponding air plates 23 are also different. That is, the air plate 23 close to the heat dissipation channel 12 with high temperature has a large rising distance and a large air intake. Conversely, the air intake is small. The heat dissipation channel 12 with higher temperature can be specifically cooled, thereby further improving the stability of the motor operation.

[0029] In view of current practical needs, the above-mentioned implementation mode adopted in this application is not limited to the scope of protection. Various changes made within the knowledge scope of technical personnel in this field without departing from the concept of this application still fall within the scope of protection of the present invention.

Claims

1. A multi-phase multi-parallel vertically wound flat wire motor end wiring structure, comprising a base (1), characterized in that: Twenty-four iron cores (2) are installed on the inner ring of the base (1), and a plurality of the iron cores (2) are sequentially installed with a parallel one-phase winding (3), a parallel two-phase winding (4) and a parallel three-phase winding (5), and the adjacent one-phase winding (3), two-phase winding (4) and three-phase winding (5) are arranged as a single-phase group, and the four single-phase groups are arranged in quadrants. The head ends are respectively fixedly connected to a first connector (301), a second connector (401), and a third connector (501); the tail ends of the one-phase winding (3), the two-phase winding (4), and the three-phase winding (5) are all fixedly connected to a tail connector (6); a connection line (7) is fixedly connected between the three tail connectors (6) on each of the single electric groups; the lengths of the first connector (301), the second connector (401), and the third connector (501) in a single quadrant decrease in sequence; the lengths of the first connector (301), the second connector (401), and the third connector (501) in the third and fourth quadrants decrease in sequence; The height of the first connector (301), the second connector (401), and the third connector (501) is greater than the height of the first connector (301), the second connector (401), and the third connector (501) inside the first and second quadrants; the area of ​​the machine base (1) between the third and fourth quadrants is set as a line collection area (8); one end of the first connector (301), the second connector (401), and the third connector (501) is respectively fixedly connected with an arc-shaped external wire (9), a middle wire (10), and an internal wire (11); the external wire (9), the middle wire (10), and the internal wire (11) inside the first and second quadrants overlap with the external wire (9), the middle wire (10), and the internal wire (11) inside the third and fourth quadrants; one end of the external wire (9), the middle wire (10), and the internal wire (11) all extend to one side of the line collection area (8); and a heat dissipation channel (12) is set between the external wire (9) and the middle wire (10), and between the middle wire (10) and the internal wire (11).

2. The multi-phase multi-parallel vertically wound flat wire motor end wiring structure according to claim 1, characterized in that: The first connector (301), the second connector (401), and the third connector (501) in the single-electric group are sequentially distributed from top to bottom, and the first connector (301), the second connector (401), and the third connector (501) in the second and third quadrants and the first connector (301), the second connector (401), and the third connector (501) in the first and fourth quadrants are symmetrically arranged.

3. The multi-phase multi-parallel vertically wound flat wire motor end wiring structure according to claim 1, characterized in that: A protective cover (13) is fixedly connected to the end of the machine base (1), and an upper partition plate (14) is fixedly connected to the middle of the top end of the protective cover (13).

4. The multi-phase multi-parallel vertically wound flat wire motor end wiring structure according to claim 3, characterized in that: An outer blocking plate (15), a middle blocking plate (16), and an inner blocking plate (17) matching the outer wiring (9), the middle wiring (10), and the inner wiring (11) are fixedly connected to the inner wall of the protective cover (13).

5. The multi-phase multi-parallel vertically wound flat wire motor end wiring structure according to claim 4, characterized in that: The outer blocking plate (15), the middle blocking plate (16), and the inner blocking plate (17) are used to fill the gap between adjacent outer connecting lines (9), middle connecting lines (10), and inner connecting lines (11), respectively.

6. The multi-phase multi-parallel vertically wound flat wire motor end wiring structure according to claim 5, characterized in that: An air inlet hole (18) is provided at one end of the one-phase winding (3) located on both sides of the upper partition plate (14), and a leak-proof plate (22) is fixedly connected between one end of the inner blocking plate (17) away from the inner wire (11) and the upper partition plate (14).

7. The cable arrangement structure at the end of a multi-phase multi-parallel vertically wound flat wire motor according to claim 6, characterized in that: A lower partition plate (19) is fixedly connected to the middle of the bottom end of the protective cover (13), air outlet holes (20) are provided at one end of the one-phase winding (3) located on both sides of the lower partition plate (19), and temperature sensors (21) are fixedly connected to the side walls on both sides of the lower partition plate (19).

8. The multi-phase multi-parallel vertically wound flat wire motor end wiring structure according to claim 3, characterized in that: One end of the protective cover (13) located on the heat dissipation channel (12) is slidably connected to a wind plate (23), a top end of the protective cover (13) close to the wind plate (23) is fixedly connected to a bracket (24), a top end of the wind plate (23) is fixedly connected to a door rod (25), and the door rod (25) is slidably connected to the bracket (24).

9. The multi-phase multi-parallel vertically wound flat wire motor end wiring structure according to claim 8, characterized in that: A pressure tube (26) is fixedly connected to one end of the bracket (24) close to the door rod (25); a piston (27) is slidably connected to the inner wall of the pressure tube (26); a push rod (28) is fixedly connected to the top end of the piston (27); and the push rod (28) is fixedly connected to the door rod (25).

10. The multi-phase multi-parallel vertically wound flat wire motor end wiring structure according to claim 9, characterized in that: The protective cover (13) is located at the top end of the heat dissipation channel (12) and is fixedly connected to a heating strip (29); the bottom end of the heating strip (29) extends to the inside of the heat dissipation channel (12) and is fixedly connected to a heat conducting plate (30); and an air pipe (31) is connected between the top end of the heating strip (29) and the bottom end of the pressure pipe (26).

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