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

Abstract

The present invention relates to a multi-phase and multi-parallel vertical winding flat wire motor end winding arrangement structure applied to the field of motor wire harnesses, including a machine base. A plurality of iron cores are installed on the inner ring of the machine base. A parallel-connected first-phase winding, a parallel-connected second-phase winding, and a parallel-connected third-phase winding are sequentially installed on the plurality of iron cores. Adjacent first-phase winding, second-phase winding, and third-phase winding are set as single resistor groups, and a plurality of single resistor groups are distributed in quadrants. The first ends of the first-phase winding, second-phase winding, and third-phase winding are respectively fixedly connected with a first connector, a second connector, and a third connector. The tail ends of the first-phase winding, second-phase winding, and third-phase winding are all fixedly connected with tail connectors. With the above settings, a heat dissipation channel is reserved between the end windings of the multi-phase windings, making the end windings more regular and uniform, ensuring the compactness of the winding arrangement, saving the installation space at the end, and at the same time can play a guiding role in the forced cooling air, reducing the implementation difficulty of forced heat dissipation of the winding arrangement and improving the heat dissipation effect.

Description

Technical Field

[0001] The present invention relates to a wire arrangement structure at the end of a motor, in particular to a wire arrangement structure for a vertical winding flat wire motor with multiple phases and multiple parallel connections applied in the field of motor wire arrangement. Background Art

[0002] The winding of the motor stator and the wire arrangement at the end are key steps in motor manufacturing. A reasonable wire arrangement method can improve the efficiency and reliability of the motor. The flat wire motor specifically refers to the change in the form of the wire used in the stator winding, from multiple thin round wires to several thick rectangular wires, commonly known as flat wires.

[0003] Chinese Patent Application No. CN202010568191.7 discloses a flat wire vertical winding motor winding, a motor stator, and a flat wire vertical winding motor. By using vertical winding, the thermal resistance is also greatly reduced, the heat dissipation capacity is improved, and the torque density of the motor is increased.

[0004] At present, the arrangement of this winding structure is not regular. When forced air cooling is required for the winding at the end, the air cannot blow evenly over each winding regularly. Therefore, it is difficult to achieve forced heat dissipation and the heat dissipation efficiency is low. Therefore, further improvement is needed. Summary of the Invention

[0005] Aiming at the above-mentioned prior art, the technical problem to be solved by the present invention is that the arrangement of the winding structure is not regular, and when forced air cooling is required for the winding at the end, the air cannot blow evenly over each winding regularly, resulting in high difficulty in achieving forced heat dissipation and low heat dissipation efficiency.

[0006] To solve the above problems, the present invention provides a multi-phase and multi-parallel vertical winding flat wire motor end wiring structure, including a machine base. Twenty-four iron cores are installed on the inner ring of the machine base. A parallel-connected first-phase winding, a parallel-connected second-phase winding, and a parallel-connected third-phase winding are sequentially installed on multiple iron cores. Adjacent first-phase winding, second-phase winding, and third-phase winding are set as single resistor groups. There are four single resistor groups, and the four single resistor groups are distributed in quadrants. The first ends of the first-phase winding, second-phase winding, and third-phase winding are respectively fixedly connected with a first connector, a second connector, and a third connector. The tails of the first-phase winding, second-phase winding, and third-phase winding are all fixedly connected with tail connectors. Connecting wires are fixedly connected between the three tail connectors on each single resistor group. The lengths of the first connector, second connector, and third connector within a single quadrant decrease in sequence. The heights of the first connector, second connector, and third connector in the third and fourth quadrants are greater than the heights of the first connector, second connector, and third connector in the first and second quadrants. The area of the machine base between the third and fourth quadrants is set as a wire gathering area. One end of the first connector, second connector, and third connector is respectively fixedly connected with an arc-shaped outer connection wire, a middle connection wire, and an inner connection wire. The outer connection wire, middle connection wire, and inner connection wire in the first and second quadrants overlap with the outer connection wire, middle connection wire, and inner connection wire in the third and fourth quadrants. One end of the outer connection wire, middle connection wire, and inner connection wire all extends to one side of the wire gathering area. Heat dissipation channels are provided between the outer connection wire and the middle connection wire, and between the middle connection wire and the inner connection wire.

[0007] As a further improvement of the present application, the first connector, second connector, and third connector within the single resistor group are distributed in sequence from top to bottom. The first connector, second connector, and third connector in the second and third quadrants and the first connector, second connector, and third connector in the first and fourth quadrants are symmetrically arranged.

[0008] As a further 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.

[0009] As a further further improvement of the present application, outer blocking plates, middle blocking plates, and inner blocking plates that match the outer connection wire, middle connection wire, and inner connection wire are fixedly connected to the inner wall of the protective cover.

[0010] As another improvement of the present application, the outer blocking plate, middle blocking plate, and inner blocking plate are respectively used to fill the height difference between adjacent outer connection wires, middle connection wires, and inner connection wires.

[0011] As a supplementary improvement of the present application, air inlet holes are opened at both ends of the first-phase winding on both sides of the upper partition plate. A leak-proof plate is fixedly connected between the end of the inner blocking plate far from the inner connection wire and the upper partition plate.

[0012] As a supplementary improvement of the present application, a lower partition plate is fixedly connected to the middle of the bottom of the protective cover. Air outlet holes are opened at both ends of the first-phase winding on both sides of the lower partition plate. Temperature sensors are fixedly connected to the side walls on both sides of the lower partition plate.

[0013] As another improved supplement to the present application, a wind plate is slidably connected to one end of the heat dissipation channel of the protective cover. A bracket is fixedly connected to the top end of the protective cover close to the wind plate. A door rod is fixedly connected to the top end of the wind plate, and the door rod is slidably connected to the bracket.

[0014] As another improved supplement to the present application, a pressure pipe 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 pipe. A push rod is fixedly connected to the top end of the piston and the push rod is fixedly connected to the door rod.

[0015] As another improved supplement to the present application, a heating strip is fixedly connected to the top end of the protective cover located at the heat dissipation channel. The bottom end of the heating strip extends to the inside of the heat dissipation channel and is fixedly connected to a heat conducting plate. An air pipe is communicated between the top end of the heating strip and the bottom end of the pressure pipe.

[0016] In summary, by reserving a heat dissipation channel between the end wire arrangements of the polyphase winding, the end wire arrangements are made more regular and uniform, ensuring the compactness of the wire arrangements, saving the installation space at the end, and at the same time can play a guiding role in the forced cooling air, reducing the implementation difficulty of forced heat dissipation of the wire arrangements and improving the heat dissipation effect.

[0017] Through the filling setting of the external wiring and the like, the air inlet hole can be used as an air inlet to blow air into the inside of the machine base. At the same time, the outer plug board, the middle plug board, and the inner plug board can guide the air to the inside of the heat dissipation channel and discharge it outward through the air outlet hole, playing a role in dissipating heat for the wire arrangements at the end of the machine base.

[0018] Through the setting of temperature sensors and the like, the temperature difference of the wiring can be detected to judge the working state of the motor, which is more conducive to the maintenance of the motor. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a top view of the machine base in the first and second embodiments of the present application;

[0020] Figure 2 It is a top view of the external wiring at the third and fourth quadrants in the first and second embodiments of the present application;

[0021] Figure 3 It is a perspective view of the end of the machine base in the first and second embodiments of the present application;

[0022] Figure 4 It is a perspective view of the middle plug board in the first and second embodiments of the present application;

[0023] Figure 5 It is a perspective view of the middle wiring in the first and second embodiments of the present application;

[0024] Figure 6 It is a structural diagram when the adjacent middle wirings are separated in the first and second embodiments of the present application;

[0025] 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;

[0026] Figure 8 This is a top view of the protective cover in the second embodiment of the present application;

[0027] Figure 9 This is a side cross-sectional view of the heated strip and the pressure tube in the second embodiment of the present application.

[0028] Description of the numbers in the figure:

[0029] 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

[0030] Two implementation modes of the present application are described in detail below with reference to the accompanying drawings.

[0031] The first implementation method:

[0032] Figures 1 - 6Shows the end wire arrangement structure of a multi-phase and multi-parallel vertical winding flat wire motor, including a frame 1. Twenty-four iron cores 2 are installed on the inner circle of the frame 1. A phase winding 3 in parallel, a second-phase winding 4 in parallel, and a third-phase winding 5 in parallel are successively installed on multiple iron cores 2. Adjacent phase winding 3, second-phase winding 4, and third-phase winding 5 are set as a single resistor group. There are four single resistor groups, and the four single resistor groups are distributed in quadrants. The heads of the phase winding 3, second-phase winding 4, and third-phase winding 5 are respectively fixedly connected with a first connector 301, a second connector 401, and a third connector 501. The tails of the phase winding 3, second-phase winding 4, and third-phase winding 5 are all fixedly connected with a tail connector 6. A connection wire 7 is fixedly connected between the three tail connectors 6 on each single resistor group. The lengths of the first connector 301, second connector 401, and third connector 501 within a single quadrant decrease in sequence. The heights of the first connector 301, second connector 401, and third connector 501 inside the third and fourth quadrants are greater than the heights of the first connector 301, second connector 401, and third connector 501 inside the first and second quadrants. The area of the frame 1 located between the third and fourth quadrants is set as a wire gathering area 8. One ends of the first connector 301, second connector 401, and third connector 501 are respectively fixedly connected with an arc-shaped outer connection wire 9, a middle connection wire 10, and an inner connection wire 11. The outer connection wire 9, middle connection wire 10, and inner connection wire 11 inside the first and second quadrants overlap with the outer connection wire 9, middle connection wire 10, and inner connection wire 11 inside the third and fourth quadrants. One ends of the outer connection wire 9, middle connection wire 10, and inner connection wire 11 all extend to one side of the wire gathering area 8. A heat dissipation channel 12 is provided between the outer connection wire 9 and the middle connection wire 10, and between the middle connection wire 10 and the inner connection wire 11.

[0033] With the above settings, a heat dissipation channel 12 is reserved between the end wire arrangements of the multi-phase windings, making the end wire arrangements more regular and uniform, ensuring the compactness of the wire arrangements, saving the installation space at the ends, and at the same time being able to guide the forced cooling air, reducing the implementation difficulty of forced cooling of the wire arrangements and improving the heat dissipation effect.

[0034] The first connector 301, second connector 401, and third connector 501 within a single resistor group are distributed in order from top to bottom. The first connector 301, second connector 401, and third connector 501 in the second and third quadrants and the first connector 301, second connector 401, and third connector 501 in the first and fourth quadrants are symmetrically arranged. Through the above settings, the wire arrangement structures of the outer connection wire 9, middle connection wire 10, and inner connection wire 11 inside the second and third quadrants are the same as and symmetrically arranged with those of the outer connection wire 9, middle connection wire 10, and inner connection wire 11 inside the first and fourth quadrants.

[0035] The second implementation method:

[0036] Figures 1 - 9Shows the end wiring structure of a multi-phase and multi-parallel vertical winding flat wire motor. Different from the first embodiment, a protective cover 13 is fixedly connected to the end of the machine base 1. In the middle of the top end of the protective cover 13, an upper partition plate 14 is fixedly connected. On the inner wall of the protective cover 13, outer blocking plates 15, middle blocking plates 16, and inner blocking plates 17 that match the outer connection wires 9, middle connection wires 10, and inner connection wires 11 are fixedly connected. The outer blocking plates 15, middle blocking plates 16, and inner blocking plates 17 are respectively used to fill the height difference between adjacent outer connection wires 9, middle connection wires 10, and inner connection wires 11. At one end on both sides of the upper partition plate 14 of a phase winding 3, air inlet holes 18 are provided. Between the end of the inner blocking plate 17 far from the inner connection wire 11 and the upper partition plate 14, a leak-proof plate 22 is fixedly connected.

[0037] Through the above settings, the air inlet holes 18 can be used as air inlets to blow air into the interior of the machine base 1. At the same time, the outer blocking plates 15, middle blocking plates 16, and inner blocking plates 17 can guide the air into the interior of the heat dissipation channel 12 and discharge it outward through the air outlet holes 20, playing a role in dissipating heat for the wiring at the end of the machine base 1.

[0038] In the middle of the bottom end of the protective cover 13, a lower partition plate 19 is fixedly connected. At one end on both sides of the lower partition plate 19 of a phase winding 3, air outlet holes 20 are provided. On both side walls of the lower partition plate 19, temperature sensors 21 are fixedly connected. 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 outer connection wires 9, middle connection wires 10, and inner connection wires 11 in the first and third quadrants and the second and fourth quadrants are symmetrically distributed, the heat generated by the outer connection wires 9, middle connection wires 10, and inner connection wires 11 in the first and third quadrants and the second and fourth quadrants is the same. When there is a temperature difference in the outer connection wires 9, middle connection wires 10, and inner connection wires 11 in the first and third quadrants or the second and fourth quadrants, the motor can be maintained.

[0039] At one end of the protective cover 13 located in the heat dissipation channel 12, a wind plate 23 is slidably connected. At the top of the protective cover 13 close to the wind plate 23, a bracket 24 is fixedly connected. At the top of the wind plate 23, a door rod 25 is fixedly connected. The door rod 25 is slidably connected to the bracket 24. At one end of the bracket 24 close to the door rod 25, a pressure pipe 26 is fixedly connected. Inside the inner wall of the pressure pipe 26, a piston 27 is slidably connected. At the top of the piston 27, a push rod 28 is fixedly connected and the push rod 28 is fixedly connected to the door rod 25. At the top of the protective cover 13 located in the heat dissipation channel 12, a heat receiving bar 29 is fixedly connected. The bottom end of the heat receiving bar 29 extends to the inner side of the heat dissipation channel 12 and a heat conducting plate 30 is fixedly connected. Between the top end of the heat receiving bar 29 and the bottom end of the pressure pipe 26, an air pipe 31 is communicated.

[0040] Since the temperatures of the single-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. With the above arrangement, the temperature inside the heat dissipation channel 12 can be transferred to the inside of the heat receiving bar 29 through the heat conducting plate 30. At this time, the air pressure inside the heat receiving bar 29 increases and pushes the piston 27 to move upward. When the piston 27 moves upward, it drives the wind plate 23 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 wind plates 23 are also different. That is, the wind plate 23 closer to the heat dissipation channel 12 with a higher temperature has a larger rising distance and a larger air intake, and vice versa, with a smaller air intake. It can perform targeted heat dissipation on the heat dissipation channel 12 with a higher temperature, further improving the stability of the motor operation.

[0041] Combined with the current actual requirements, the above implementation manner adopted in this application, the protection scope is not limited to this. Within the scope of knowledge possessed by those skilled in the art, various changes made without departing from the concept of this application still fall within the protection scope 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: The inner ring of the machine base (1) is provided with twenty-four iron cores (2), and a plurality of iron cores (2) are provided with parallel one-phase windings (3), parallel two-phase windings (4) and parallel three-phase windings (5) in sequence. The 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. 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 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 with a tail connector (6). A connecting line (7) is fixedly connected between the three tail connectors (6) on each single-phase group. 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 are respectively fixedly connected with a tail connector (6). 01), the height of the second joint (401), and the third joint (501) is greater than the height of the first joint (301), the second joint (401), and the third joint (501) in the first and second quadrants; the area of ​​the base (1) between the third and fourth quadrants is set as a wire collection area (8); one end of the first joint (301), the second joint (401), and the third joint (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 end of the external wire (9), the middle wire (10), and the internal wire (11) all extend to one side of the wire collection area (8); 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); The end of the base (1) is fixedly connected to a protective cover (13), the middle of the top of the protective cover (13) is fixedly connected to an upper partition plate (14), one end of the protective cover (13) located at the heat dissipation channel (12) is slidably connected to a wind plate (23), the top of the protective cover (13) close to 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), the door rod (25) is slidably connected to the bracket (24), and one end of the bracket (24) close to the door rod (25) is fixedly connected to a pressure pipe (26), 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), 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 inner side 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 tube (26).

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: 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).

4. The multi-phase multi-parallel vertically wound flat wire motor end wiring structure according to claim 3, 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.

5. The multi-phase multi-parallel vertically wound flat wire motor end wiring structure according to claim 4, 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).

6. The multi-phase multi-parallel vertically wound flat wire motor end wiring structure according to claim 5, 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).

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