High-power flat wire winding motor

Abstract

The high-power flat wire winding motor comprises a stator assembly and a rotor assembly, the stator assembly comprises an iron core and a plurality of flat wire windings, a through hole is formed in the middle of the iron core, the iron core is provided with a plurality of stator grooves, each stator groove is provided with a groove opening, each flat wire winding is arranged in the corresponding stator groove, and the through hole is communicated with the through hole. The rotor assembly comprises a rotating shaft and a magnetic ring, the rotating shaft is rotatably arranged in the stator groove, and the magnetic ring sleeves the rotating shaft. The stator slots are arranged to be flat and are matched with the flat wire windings in shape, and the flat wire windings are adopted, so that the space utilization rate of the stator slots can be greatly improved, the overall current density of the motor is greatly improved, the motor power is greatly improved, and the motor has higher rotating speed and driving force under the same size; the function and performance of the high-power flat wire winding motor are improved, and the high-speed requirement of an RC model car is met.

Description

Technical Field

[0001] The invention relates to the technical field of drive equipment, and in particular to a high-power flat wire winding motor. Background Art

[0002] RC (Remote control) model car is a kind of miniature model car. With the development of economy, RC model car industry is becoming more and more popular among people, and the player group is gradually growing. The motor is the most important component of RC model car, providing driving force for the movement of RC model car. The performance of the motor directly determines the performance of RC model car, for example, it affects the speed and life of RC model car. Therefore, with the development of RC model car industry, the micro motor used for RC model car is also getting more and more attention, and the performance requirements of RC model car motor are getting higher and higher to meet the higher performance requirements of players for RC model car.

[0003] However, existing motors for RC model cars usually use traditional round wire windings, and there are gaps between the round enameled wire windings when they are arranged in space, the space utilization rate of the stator slots is low, and the current density cannot be improved, which cannot meet the high-speed and high-performance requirements of RC model cars. Therefore, it is necessary to improve the function and performance of motors for RC model cars to meet the high-speed requirements of RC model cars. Summary of the invention

[0004] Based on this, it is necessary to provide a high-power flat wire winding motor.

[0005] The technical solution of the present invention to solve the above technical problems is as follows: A high-power flat wire winding motor, comprising:

[0006] A stator assembly, the stator assembly comprising an iron core and a plurality of flat wire windings, a through hole being provided in the middle of the iron core, the through hole being provided through the first end and the second end of the iron core, the iron core being provided with a plurality of stator slots, the stator slots being provided at intervals from each other, the stator slots being provided through the first end and the second end of the iron core, each stator slot having a notch, the stator slots being connected to the through hole through the notches, each flat wire winding being provided in a stator slot, and both ends of each flat wire winding being provided at least partially protruding from the outside of the stator slot; and

[0007] The rotor assembly comprises a rotating shaft and a magnetic ring. The rotating shaft is rotatably disposed in the stator slot. The rotating shaft at least partially protrudes from the outside of the stator slot. The magnetic ring is sleeved on the rotating shaft, and the magnetic ring and each of the slots are spaced apart from each other.

[0008] In one embodiment, a shell is further included, wherein the shell is connected to the outer side wall of the core and covers the outer side of the core.

[0009] In one embodiment, the shell includes a shell, a front end cover and a rear end cover, the shell is provided with a accommodating cavity, the accommodating cavity is arranged through the first end and the second end of the shell, the iron core is arranged in the accommodating cavity, and the outer side wall of the iron core is connected to the inner side wall of the accommodating cavity, the front end cover and the rear end cover are respectively detachably connected to the first end and the second end of the shell, the front end cover and the rear end cover are used to movably close the accommodating cavity, the front end cover is provided with a movable hole, the first end and the second end of the rotating shaft are respectively rotatably installed on the front end cover and the rear end cover through a bearing, and the first end of the rotating shaft passes through the movable hole to pass through the outside of the front end cover.

[0010] In one embodiment, the outer side wall of the shell is provided with a plurality of convex strips, and the convex strips are arranged at intervals from each other.

[0011] In one embodiment, the high-power flat wire winding motor also includes a plurality of first guide components, each of which is stacked in sequence on the first end of the iron core, and each of the first guide components includes a first insulating plate and a first guide copper bar, and the first insulating plate and the first guide copper bar are stacked in sequence from one end close to the iron core to the end away from the iron core, and the first guide copper bar is provided with a plurality of first welding grooves and a plurality of first avoidance grooves, and each of the first welding grooves and each of the first avoidance grooves are spaced apart from each other, and the first welding grooves of two adjacent first guide copper bars are staggered with each other, and the first end of each flat wire winding is welded to the inner side wall of one of the first welding grooves, and the first end of each flat wire winding is spaced apart from the inner side wall of one of the first avoidance grooves.

[0012] In one embodiment, a plurality of the first flow guiding copper bars of each first flow guiding component are provided, and the first flow guiding copper bars are arranged adjacent to each other.

[0013] In one embodiment, the high-power flat wire winding motor also includes a plurality of second guide components, each of which is stacked in sequence on the second end of the iron core, and each of the second guide components includes a second insulating plate and a second guide copper bar, and the second insulating plate and the second guide copper bar are stacked in sequence from one end close to the iron core to the end away from the iron core, and the second guide copper bar is provided with a plurality of second welding grooves and a plurality of second avoidance grooves, and each of the second welding grooves and each of the second avoidance grooves are spaced apart from each other, and the second welding grooves of two adjacent second guide copper bars are staggered with each other, and the second end of each flat wire winding is welded to the inner side wall of a second welding groove, and the second end of each flat wire winding is spaced apart from the inner side wall of a second avoidance groove.

[0014] In one embodiment, a plurality of the second flow guiding copper bars of each second flow guiding assembly are provided, and the second flow guiding copper bars are arranged adjacent to each other.

[0015] In one embodiment, each of the flat wire windings includes a plurality of flat wires, each of the flat wires is stacked in the stator slot, and a first end and a second end of each of the flat wires are at least partially protruded outside the stator slot.

[0016] In one embodiment, the high-power flat wire winding motor further includes a plurality of insulating layers, each of the insulating layers is disposed in a stator slot, and both ends of each of the insulating layers are at least partially protruded from the outside of the stator slot.

[0017] Compared with the prior art, the present invention has at least the following advantages:

[0018] The present invention is provided with an iron core, and the iron core is provided with stator slots, and the stator slots are used to accommodate each flat wire winding. Specifically, the stator slots are set to be flat and matched with the shape of the flat wire winding. The flat wire winding is adopted, and the flat wire winding can greatly improve the space utilization rate of the stator slot, thereby greatly improving the overall current density of the motor, greatly improving the motor power, so that the motor has a higher speed and driving force under the same volume, improving the function and performance of the high-power flat wire winding motor, and meeting the high-speed requirements of the RC model car. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 A schematic structural diagram of a high-power flat wire winding motor according to an embodiment;

[0020] Figure 2 It is a schematic diagram of a three-dimensional exploded structure of a high-power flat wire winding motor according to an embodiment;

[0021] Figure 3 A partial structural schematic diagram of a high-power flat wire winding motor according to an embodiment;

[0022] Figure 4 A schematic structural diagram of an iron core of a high-power flat wire winding motor according to an embodiment;

[0023] Figure 5 A schematic structural diagram of a first flow guide component of a high-power flat wire winding motor according to an embodiment;

[0024] Figure 6 A schematic structural diagram of a second flow guide component of a high-power flat wire winding motor according to an embodiment;

[0025] Figure 7 A schematic structural diagram of a rotor assembly and a sheath of a high-power flat wire winding motor according to an embodiment;

[0026] Figure 8 The figure is a schematic cross-sectional structural diagram of a rotor assembly and a sheath of a high-power flat wire winding motor according to an embodiment. DETAILED DESCRIPTION

[0027] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present invention can be combined with each other. The technical solution of the present invention will be further described below in conjunction with the drawings of the embodiments of the present invention, and the present invention is not limited to the following specific implementation methods.

[0028] It should be understood that the same or similar reference numerals in the drawings of the embodiments correspond to the same or similar components. In the description of the present invention, it should be understood that if the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom" and the like indicate an orientation or positional relationship based on the orientation or positional relationship shown in the drawings, it is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, the terms describing the positional relationship in the drawings are only used for illustrative purposes and cannot be understood as a limitation on this patent. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.

[0029] See also Figure 1 , Figure 2 , Figure 3 and Figure 7 In one embodiment, a high-power flat wire winding motor 10 is provided, including a stator assembly 100 and a rotor assembly 200. The stator assembly 100 includes an iron core 110 and a plurality of flat wire windings 120. A through hole 111 is provided in the middle of the iron core 110, and the through hole 111 is provided through the first end and the second end of the iron core 110. The iron core 110 is provided with a plurality of stator slots 112, and each of the stator slots 112 is provided at intervals from each other, and each of the stator slots 112 is provided through the first end and the second end of the iron core 110, and each of the stator slots 112 has a notch 112a, and each of the stator slots 112 is connected to the through hole 111 through each of the notches 112a, and each of the flat wire windings 120 is provided in one of the stator slots 112, and both ends of each of the flat wire windings 120 are at least partially protruded from the outside of the stator slot 112. The rotor assembly 200 includes a rotating shaft 210 and a magnetic ring 220. The rotating shaft 210 is rotatably disposed in the stator slot 112. The rotating shaft 210 at least partially protrudes from the outside of the stator slot 112. The magnetic ring 220 is sleeved on the rotating shaft 210, and the magnetic ring 220 and each of the slots 112a are spaced apart from each other.

[0030] It should be noted that the high-power flat wire winding motor includes a stator assembly 100 and a rotor assembly 200. The stator assembly 100 and the rotor assembly 200 drive the rotor assembly 200 to rotate through electromagnetic induction, thereby realizing the rotational power output of the high-power flat wire winding motor. Specifically, the stator assembly 100 is provided with an iron core 110 and each flat wire winding 120. The iron core 110 is a hollow cylindrical structure. The iron core 110 is provided with each stator slot 112. The stator slots 112 are radially arranged with the central axis of the iron core 110 as the center, thereby forming a ring-shaped stator slot 112. The number of the stator slots 112 is the same as the number of the flat wire windings 120, so that each flat wire winding 120 can be installed one by one, and the shape of the stator slots 112 is set to be flat, which is compatible with the shape of the flat wire windings 120. The flat wire windings 120 are flat conductive wire structures and are directly inserted into the stator slots 112 to avoid gaps caused by winding, so that the stator slots 112 can be better filled, which greatly improves the space utilization of the stator slots 112, so that the high-power flat wire winding motor can accommodate more conductive wires under the micro structure, thereby greatly improving the current density.

[0031] Furthermore, by rotatably installing the rotating shaft 210 in the through hole 111 of the iron core 110, the magnetic ring 220 is a hollow ring structure with two magnetic poles, the N pole and the S pole, which can generate a magnetic field. The magnetic ring 220 is sleeved and installed on the rotating shaft 210. The rotating shaft 210 is rotated through the electromagnetic induction between the magnetic ring 220 and the flat wire winding 120 in the energized state. The rotating shaft 210 serves as the power output end of the high-power flat wire winding motor to achieve the output of the rotational driving force. The flat wire winding 120 greatly improves the space utilization rate of the electronic slot of the high-power flat wire winding motor, thereby greatly improving the current density of the high-power flat wire winding motor when energized, can enhance electromagnetic induction, and greatly improve the motor power, so that the motor has a higher speed and driving force under the same volume, thereby improving the function and performance of the high-power flat wire winding motor and meeting the high-speed requirements of the RC model car.

[0032] See also Figure 1 and Figure 2 In one embodiment, a housing 300 is further included, and the housing 300 is connected to the outer wall of the iron core 110 and covers the outer side of the iron core 110. It can be understood that by providing the housing 300, the housing 300 is made of insulating material, and the housing 300 is sleeved and covered on the outer side of the iron core 110, so that the iron core 110, the flat wire winding 120, the rotating shaft 210 and the magnetic ring 220 are covered in the housing 300, which can protect the various components of the high-power flat wire winding motor, and at the same time, it can also play an insulating role to avoid leakage, thereby ensuring the normal use and safety of the high-power flat wire winding motor.

[0033] See also Figure 1 and Figure 2 In one embodiment, the shell 300 includes a shell 310, a front cover 320 and a rear cover 330, the shell 310 is provided with a accommodating chamber 311, the accommodating chamber 311 is arranged through the first end and the second end of the shell 310, the iron core 110 is arranged in the accommodating chamber 311, and the outer wall of the iron core 110 is connected to the inner wall of the accommodating chamber 311, the front cover 320 and the rear cover 330 are detachably connected to the first end and the second end of the shell 310 respectively, the front cover 320 and the rear cover 330 are used to movably close the accommodating chamber 311, the front cover 320 is provided with a movable hole, the first end and the second end of the rotating shaft 210 are rotatably installed on the front cover 320 and the rear cover 330 respectively through a bearing, and the first end of the rotating shaft 210 passes through the outer side of the front cover 320 through the movable hole. It can be understood that in this embodiment, the shell 300 adopts a hollow cylindrical shell 310 structure, and the iron core 110 is positioned and fixedly installed on the inner wall of the accommodating cavity 311 of the shell 310. For example, the outer wall of the iron core 110 can be provided with a positioning groove, and the inner wall of the accommodating cavity 311 can be provided with a positioning bar, and the positioning bar and the positioning groove are engaged with each other, so that the iron core 110 is positioned and fixedly installed in the accommodating cavity 311, and the front end cover 320 and the rear end cover 330 can be detachably installed on the first end and the second end of the shell 310 by bolts. The accommodating cavity 311 of the movable enclosed shell 310 allows the iron core 110, the flat wire winding 120, the rotating shaft 210 and the magnetic ring 220 to be enclosed in the accommodating cavity 311. At the same time, the front cover 320 and the rear cover 330 are easy to install and disassemble, which is convenient for repairing and replacing the components in the accommodating cavity 311. The first end of the shell 310 is the output end of the high-power flat wire winding motor, and the first end of the rotating shaft 210 passes through the movable hole for connecting with external components, thereby realizing the rotational drive of the components by the high-power flat wire winding motor.

[0034] See also Figure 1 and Figure 2In one embodiment, the outer wall of the housing 310 is provided with a plurality of ridges 312, and each of the ridges 312 is arranged at intervals from each other. It can be understood that the outer wall of the housing 310 is provided with each ridge 312. In this embodiment, each ridge 312 is arranged in a spiral shape. Each ridge 312 can be used as a reinforcing rib structure, which greatly enhances the mechanical strength of the housing 310, thereby improving the overall mechanical strength of the high-power flat wire winding motor. At the same time, each ridge 312 also greatly increases the surface area of ​​the housing 310, thereby increasing the heat dissipation area of ​​the housing 310, which is conducive to the rapid conduction of heat generated by the internal components of the housing 310 when working to the external environment, thereby improving the overall heat dissipation performance of the high-power flat wire winding motor, so that the high-power flat wire winding motor has good heat dissipation performance while meeting high power and high speed, thereby improving the overall performance of the high-power flat wire winding motor.

[0035] See also Figure 2 , Figure 3 and Figure 5 In one embodiment, the high-power flat wire winding motor further includes a plurality of first guide components 400, each of which is sequentially stacked on the first end of the iron core 110, each of which includes a first insulating plate 410 and a first guide copper bar 420, the first insulating plate 410 and the first guide copper bar 420 are sequentially stacked from one end close to the iron core 110 to one end away from the iron core 110, the first guide copper bar 420 is provided with a plurality of first welding grooves 421 and a plurality of first avoidance grooves 422, each of which is spaced apart from each other, the first welding grooves 421 of two adjacent first guide copper bars 420 are staggered, the first end of each flat wire winding 120 is welded to the inner side wall of a first welding groove 421, and the first end of each flat wire winding 120 is spaced apart from the inner side wall of a first avoidance groove 422.

[0036] It can be understood that, by providing each first guide assembly 400, in this embodiment, two first guide assemblies 400 are provided, that is, two groups of first insulating plates 410 and first guide copper bars 420 are sequentially stacked on the first end of the iron core 110, and the first insulating plate 410 can play an insulating role, and play an insulating role between the first end of the iron core 110 and the two groups of first guide copper bars 420, thereby avoiding a short circuit between the iron core 110 and each first guide copper bar 420. The shape of each stator slot 112 is adapted, and a corresponding conducting slot is opened at the position of each stator slot 112, so that the first end of each flat wire winding 120 can be passed through and welded with the inner wall of each first welding slot 421 of each first guide copper bar 420, so as to realize the electrical connection between each flat wire winding 120 and each first guide copper bar 420. Each first guide copper bar 420 plays the role of a bridge line. After each flat wire winding 120 is electrically connected to each first guide copper bar 420 by welding, the first guide copper bars 420 are welded to each other. The electrical connection is realized, so that the circuit connection between each flat wire winding 120 can be realized. According to the circuit design requirements of the high-power flat wire winding motor, each first guide copper bar 420 is correspondingly welded, so as to avoid each flat wire winding 120 being wound around the end of the iron core 110 and then welded to realize electrical connection, that is, to avoid each flat wire winding 120 being wound, so as to avoid the existence of winding gaps between each flat wire winding 120, so that the structure is more compact and the space utilization rate is higher, so that the high-power flat wire winding motor has a large gap in the axial direction. The end winding coil structure of the flat wire winding 120 is greatly reduced, saving the axial space of the high-power flat wire winding motor, so that the high-power flat wire winding motor can accommodate a longer iron core 110 in the axial direction, that is, under the same volume, the high-power flat wire winding motor can accommodate a larger effective length of the iron core 110, so that the effective length of the effective flat wire coil accommodated is larger, thereby further improving the current density and power of the high-power flat wire winding motor, and can further improve the speed and performance of the high-power flat wire winding motor.

[0037] Furthermore, in the present embodiment, a double-layer first guide copper bar 420 structure is adopted. During installation, a group of first insulating plates 410 and first guide copper bar 420 can be fixed together by injection molding to form a first guide assembly 400. The first guide copper bar 420 is provided with first welding grooves 421 and first avoidance grooves 422. Each first welding groove 421 is aligned with a stator slot 112 in the vertical direction. Similarly, each first avoidance groove 422 is aligned with a stator slot 112 in the vertical direction. In this way, the flat wire winding 120 can pass through the stator slot 112 and enter the first welding groove 421 or the first avoidance groove 422 in a straight line to avoid bending of the flat wire winding 120. It is beneficial to improve the compactness of the structure. At the same time, the shape of the first welding groove 421 is adapted to the shape of the flat wire winding 120, and the inner side walls of the flat wire winding 120 and the first welding groove 421 are mutually fitted, so that the flat wire winding 120 and the inner side wall of the first welding groove 421 are welded and connected, thereby realizing electrical connection. The cross-sectional area of ​​the first avoidance groove 422 is larger than the cross-sectional area of ​​the flat wire winding 120, that is, the shape of the first avoidance groove 422 is larger than the shape of the flat wire winding 120, so that a certain gap is left between the flat wire winding 120 and the inner side wall of the first avoidance groove 422, which plays an avoidance role. According to the circuit design, the first welding groove 421 and the first avoidance groove 422 are arranged on the first guide copper bar 420. 2, thereby completing the electrical connection between the first end of the flat wire winding 120 and a first layer of the first guide copper bar 420. After the welding is completed, the second first guide copper bar 420 is stacked and placed to electrically connect the second layer of the first guide copper bar 420 to the flat wire winding 120. Similarly, the first welding groove 421 and the first avoidance groove 422 of the second layer are also aligned with the stator slot 112 up and down to ensure that the flat wire winding 120 passes through in a straight line, and the first welding grooves 421 between the two first guide copper bars 420 are staggered up and down. In this way, the flat wire winding 120 that has not been welded can be welded to the first welding groove 421 of the first guide copper bar 420 of the second layer, and the first guide copper bar 421 of the second layer can be welded to the first welding groove 421 of the first guide copper bar 420 of the second layer. The first avoidance groove 422 of the copper busbar 420 can avoid the flat wire winding 120 that has been welded, avoiding repeated welding. Each flat wire winding 120 can be welded in layers to avoid concentrated welding, which is beneficial to reducing the difficulty of welding operation, realizing automated production, and improving the production efficiency of the high-power flat wire winding motor. At the same time, each flat wire winding 120 is welded to the first guide copper busbar 420 in layers, and the welding is staggered with each other, which increases the effective electrical gap between the flat wire winding 120 and the first guide copper busbar 420, reserves a safety distance, and prevents intensive welding and short circuit during assembly, thereby improving the performance of the high-power flat wire winding motor while improving the safety performance and reliability.

[0038] In one embodiment, the first guide copper bars 420 of each first guide component 400 are arranged in plurality, and the first guide copper bars 420 are arranged adjacent to each other. It can be understood that in a first guide component 400, a plurality of first guide copper bars 420 are arranged, and the first guide copper bars 420 are arranged radially with the central axis of the iron core 110 as the center. After the first guide copper bars 420 are respectively welded with the flat wire windings 120 to achieve electrical connection, the electrical connection between the first guide copper bars 420 is achieved, and the electrical connection between the groups of flat wire windings 120 is achieved. The arrangement of multiple layers and multiple first guide copper bars 420 can group the flat wire windings 120 and then respectively connect them in circuits. The flat wire windings 120 can be arbitrarily connected in parallel or in series through multiple first guide copper bars 420, which can meet more circuit design requirements and have better practicality and practicability.

[0039] See also Figure 2 , Figure 3 and Figure 6 In one embodiment, the high-power flat wire winding motor further includes a plurality of second current guide components 500, each of which is sequentially stacked on the second end of the iron core 110, each of which includes a second insulating plate 510 and a second current guide copper bar 520, the second insulating plate 510 and the second current guide copper bar 520 are sequentially stacked from one end close to the iron core 110 to one end away from the iron core 110, the second current guide copper bar 520 is provided with a plurality of second welding grooves 521 and a plurality of second avoidance grooves 522, each of which is spaced apart from the other, the second welding grooves 521 of two adjacent second current guide copper bars 520 are staggered, the second end of each of the flat wire windings 120 is welded to the inner side wall of a second welding groove 521, and the second end of each of the flat wire windings 120 is spaced apart from the inner side wall of a second avoidance groove 522.

[0040] It can be understood that, correspondingly, the second end of the iron core 110 is provided with each second guide assembly 500. In this embodiment, the second guide assembly 500 is provided in two, and two sets of second insulating plates 510 and second guide copper bars 520 are sequentially stacked on the second end of the iron core 110. The second insulating plate 510 can play an insulating role, and plays an insulating role between the second end of the iron core 110 and the two sets of second guide copper bars 520, thereby avoiding the iron core 110 and each second guide copper bar 520 from being damaged. Similarly, the second insulating plate 510 is adapted to the shape of the second end of the iron core 110, and is provided with a conducting slot adapted to the stator slot 112, so as to ensure that the second end of each flat wire winding 120 passes through and is welded to the inner side wall of each second welding slot 521 of each second conducting copper bar 520, thereby realizing the electrical connection between the second end of each flat wire winding 120 and each second conducting copper bar 520, and each second conducting copper bar 520 plays the role of a bridge wire, and each flat wire winding 120 is connected to the second conducting copper bar 520. After being electrically connected to each second current guiding copper bar 520 by welding respectively, the electrical connection is then achieved by welding between the second current guiding copper bars 520, so that the circuit connection between the flat wire windings 120 can be achieved, and the second ends of the flat wire windings 120 are prevented from being wound, thereby preventing the existence of winding gaps between the second ends of the flat wire windings 120, making the structure more compact and the space utilization rate higher, and further making the end winding coil structure of the flat wire winding 120 of the high-power flat wire winding motor in the axial direction greatly reduced, saving the axial space of the high-power flat wire winding motor, so that the high-power flat wire winding motor can accommodate a longer length of the iron core 110 in the axial direction, and under the same volume, the effective length of the iron core 110 that can be accommodated is further increased, so that the effective length of the accommodated effective flat wire coil is larger, thereby further improving the current density and power of the high-power flat wire winding motor, and can further improve the speed and performance of the high-power flat wire winding motor.

[0041] Furthermore, in the present embodiment, a double-layer second guide copper bar 520 structure is adopted. During installation, a set of second insulating plates 510 and second guide copper bar 520 can be firstly fixed together by injection molding to form a second guide assembly 500. Second welding grooves 521 and second avoidance grooves 522 are provided on the second guide copper bar 520. Each second welding groove 521 is aligned with a stator slot 112 in the vertical direction. Similarly, each second avoidance groove 522 is aligned with a stator slot 112 in the vertical direction. In this way, the flat wire winding 120 can pass through the stator slot 112 and enter the second welding groove 521 or the second avoidance groove 522 in a straight line to avoid bending of the flat wire winding 120. It is beneficial to improve the compactness of the structure. At the same time, the shape of the second welding groove 521 is adapted to the shape of the flat wire winding 120, and the inner side walls of the flat wire winding 120 and the second welding groove 521 are fitted with each other, so that the flat wire winding 120 and the inner side wall of the second welding groove 521 are welded and connected, thereby realizing electrical connection. The cross-sectional area of ​​the second avoidance groove 522 is larger than the cross-sectional area of ​​the flat wire winding 120, that is, the shape of the second avoidance groove 522 is larger than the shape of the flat wire winding 120, so that a certain gap is left between the flat wire winding 120 and the inner side wall of the second avoidance groove 522, which plays an avoidance role. According to the circuit design, the second welding groove 521 and the second avoidance groove 522 are arranged on the second guide copper bar 520. 2, thereby completing the electrical connection between the second end of the flat wire winding 120 and a layer of the second guide copper bar 520. After welding, the second second guide copper bar 520 is stacked and placed to electrically connect the second guide copper bar 520 of the second layer to the flat wire winding 120. Similarly, the second welding groove 521 and the second avoidance groove 522 of the second layer are also aligned with the stator slot 112 up and down to ensure that the flat wire winding 120 passes through in a straight line, and the second welding grooves 521 between the two second guide copper bars 520 are staggered up and down. In this way, the flat wire winding 120 that has not been welded can be welded to the second welding groove 521 of the second guide copper bar 520 of the second layer, and the second guide copper bar 520 of the second layer can be welded to the second welding groove 521 of the second guide copper bar 520 of the second layer. The second avoidance groove 522 of the copper bar 520 can avoid the flat wire winding 120 that has been welded to avoid repeated welding. Each flat wire winding 120 can be welded in layers to avoid concentrated welding, which is beneficial to reducing the difficulty of welding operation and realizing automated production, which is beneficial to improving the production efficiency of the high-power flat wire winding motor. At the same time, each flat wire winding 120 and the second guide copper bar 520 are welded in layers and staggered with each other, which increases the effective electrical gap between the flat wire winding 120 and the second guide copper bar 520, reserves a safety distance, and prevents intensive welding and short circuit during assembly, thereby improving the performance of the high-power flat wire winding motor while improving safety performance and reliability.

[0042] In one embodiment, the second guide copper bars 520 of each second guide component 500 are arranged in plurality, and each second guide copper bar 520 is arranged adjacent to each other. It can be understood that, similarly, each second guide component 500 is provided with a plurality of second guide copper bars 520, and each second guide copper bar 520 is respectively welded to the second end of each flat wire winding 120 to achieve electrical connection, and then the electrical connection between each second guide copper bar 520 is achieved to achieve electrical connection between each group of flat wire windings 120, and the arrangement of multiple layers and multiple second guide copper bars 520 can group each flat wire winding 120 and then respectively connect the circuits, and each flat wire winding 120 can be arbitrarily connected in parallel or in series through multiple second guide copper bars 520, which can meet more circuit design requirements and has better practicality and practicability.

[0043] See also Figure 2 and Figure 3 In one embodiment, each of the flat wire windings 120 includes a plurality of flat wires 121, each of the flat wires 121 is stacked in the stator slot 112, and the first end and the second end of each of the flat wires 121 are at least partially protruded from the outside of the stator slot 112. It can be understood that the flat wire winding 120 uses a plurality of flat wires 121, and the flat wires 121 are flat conductive wire structures. Each flat wire 121 is parallel to each other and overlaps with each other. The two ends of the flat wire 121 are respectively stripped of part of the paint to expose part of the copper wire, so that each flat wire 121 can be welded and connected with each first guide copper bar 420 and each second guide copper bar 520. The structure is simple and easy to weld. Since the insulating paint is provided between each flat wire 121, the skin effect can be effectively reduced, and the resistance of the flat wire winding 120 can be effectively reduced, which is conducive to improving the effective current density and power of the high-power flat wire winding motor.

[0044] See also Figure 3 In one embodiment, the high-power flat wire winding motor further includes a plurality of insulating layers 600, each of which is disposed in a stator slot 112, and both ends of each of which are at least partially protruded from the outside of the stator slot 112. It can be understood that by providing each insulating layer 600, the insulating layer 600 can be made of ultra-thin insulating paper, which can avoid occupying the internal space of the stator slot 112, while ensuring a good insulation effect. Each insulating layer 600 is adapted to the shape of a stator slot 112, and at least partially protrudes from the outside of both ends of the stator slot 112, so that the insulating layer 600 can completely cover the inner wall of the stator slot 112, which can play a good insulation effect, avoid leakage short circuit phenomenon, and further improve the electrical safety performance of the high-power flat wire winding motor.

[0045] See also Figure 4In one embodiment, a tooth portion 112b is provided at one end of the inner side wall of each stator slot 112 near the through hole 111, and each tooth portion 112b is provided with a through hole, and each through hole is connected with a slot 112a, and the cross-sectional area of ​​the through hole gradually increases from the end near the through hole 111 to the end away from the through hole 111, and the thickness of the tooth portion 112b is greater than the width of the slot 112a. It can be understood that by providing a tooth portion 112b structure at the slot 112a position, and the tooth portion 112b is provided with a trumpet-shaped through hole structure, a smaller slot 112a structure can be formed, which is conducive to further weakening the skin effect, reducing resistance, improving current efficiency, and ensuring that the high-power flat wire winding motor has a higher power and speed.

[0046] See also Figure 2 , Figure 7 and Figure 8 In one embodiment, it further includes a sleeve 700, and a balancing end plate 211 is respectively provided at both ends of the rotating shaft 210. The sleeve 700 is sleeved on the outer side of the magnetic ring 220, and the sleeve 700 is at least partially sleeved on the outer sides of the two balancing end plates 211, and gaps are respectively left between the magnetic ring 220 and the two balancing end plates 211. It can be understood that by providing a sleeve 700, the sleeve 700 is made of stainless steel material, and the magnetic ring 220 can be covered inside the sleeve 700 through the sleeve 700 and the balancing end plates 211 at both ends, which can protect the magnetic ring 220 and improve the overall mechanical strength of the rotor assembly 200. A certain gap is left between the magnetic ring 220 and the balancing end plate 211. Since the magnetic ring 220 is fixedly installed on the rotating shaft 210 by glue, the gap between the magnetic ring 220 and the balancing end plate 211 can leave a certain space for glue overflow during the installation of the magnetic ring 220 to avoid glue overflow, while ensuring that the magnetic ring 220 can be firmly installed on the rotating shaft 210 to ensure the overall structural stability of the rotor assembly 200.

[0047] Compared with the prior art, the present invention has at least the following advantages:

[0048] The present invention is provided with an iron core, and the iron core is provided with stator slots, and the stator slots are used to accommodate each flat wire winding. Specifically, the stator slots are set to be flat and matched with the shape of the flat wire winding. The flat wire winding is adopted, and the flat wire winding can greatly improve the space utilization rate of the stator slot, thereby greatly improving the overall current density of the motor, greatly improving the motor power, so that the motor has a higher speed and driving force under the same volume, improving the function and performance of the high-power flat wire winding motor, and meeting the high-speed requirements of the RC model car.

[0049] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0050] The above-mentioned embodiments only express several implementation methods of the present invention, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the invention patent. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be subject to the attached claims.

Claims

1. A high-power flat wire winding motor, characterized in that: include: A stator assembly, the stator assembly comprising an iron core and a plurality of flat wire windings, a through hole being provided in the middle of the iron core, the through hole being provided through the first end and the second end of the iron core, the iron core being provided with a plurality of stator slots, the stator slots being provided at intervals from each other, the stator slots being provided through the first end and the second end of the iron core, each stator slot having a notch, the stator slots being connected to the through hole through the notches, each flat wire winding being provided in a stator slot, and both ends of each flat wire winding being provided at least partially protruding from the outside of the stator slot; and The rotor assembly comprises a rotating shaft and a magnetic ring. The rotating shaft is rotatably arranged in the stator slot. The rotating shaft at least partially protrudes outside the stator slot. The magnetic ring is sleeved on the rotating shaft, and the magnetic ring and each of the slots are spaced apart from each other.

2. The high-power flat wire winding motor according to claim 1, characterized in that: The invention also comprises a shell, which is connected to the outer side wall of the iron core and covers the outer side of the iron core.

3. The high-power flat wire winding motor according to claim 2, characterized in that: The shell includes a shell, a front end cover and a rear end cover, the shell is provided with a accommodating cavity, the accommodating cavity is arranged through the first end and the second end of the shell, the iron core is arranged in the accommodating cavity, and the outer side wall of the iron core is connected to the inner side wall of the accommodating cavity, the front end cover and the rear end cover are respectively detachably connected to the first end and the second end of the shell, the front end cover and the rear end cover are used to movably close the accommodating cavity, the front end cover is provided with a movable hole, the first end and the second end of the rotating shaft are respectively rotatably installed on the front end cover and the rear end cover through a bearing, and the first end of the rotating shaft passes through the movable hole to pass through the outside of the front end cover.

4. The high-power flat wire winding motor according to claim 3, characterized in that: The outer side wall of the shell is provided with a plurality of convex strips, and the convex strips are arranged at intervals from each other.

5. The high-power flat wire winding motor according to claim 1, characterized in that: The high-power flat wire winding motor also includes a plurality of first guide components, each of which is stacked in sequence on the first end of the iron core, each of which includes a first insulating plate and a first guide copper bar, the first insulating plate and the first guide copper bar are stacked in sequence from one end close to the iron core to the end away from the iron core, the first guide copper bar is provided with a plurality of first welding grooves and a plurality of first avoidance grooves, each of the first welding grooves and each of the first avoidance grooves are spaced apart from each other, the first welding grooves of two adjacent first guide copper bars are staggered, the first end of each flat wire winding is welded to the inner side wall of one of the first welding grooves, and the first end of each flat wire winding is spaced apart from the inner side wall of one of the first avoidance grooves.

6. The high-power flat wire winding motor according to claim 5, characterized in that: A plurality of the first flow guiding copper bars of each first flow guiding component are provided, and the first flow guiding copper bars are arranged adjacent to each other.

7. The high-power flat wire winding motor according to claim 1, characterized in that: The high-power flat wire winding motor also includes a plurality of second guide components, each of which is stacked in sequence on the second end of the iron core, each of which includes a second insulating plate and a second guide copper bar, the second insulating plate and the second guide copper bar are stacked in sequence from one end close to the iron core to the end away from the iron core, the second guide copper bar is provided with a plurality of second welding grooves and a plurality of second avoidance grooves, each of the second welding grooves and each of the second avoidance grooves are spaced apart from each other, the second welding grooves of two adjacent second guide copper bars are staggered, the second end of each flat wire winding is welded to the inner side wall of a second welding groove, and the second end of each flat wire winding is spaced apart from the inner side wall of a second avoidance groove.

8. The high-power flat wire winding motor according to claim 7, characterized in that: A plurality of the second flow guiding copper bars of each second flow guiding assembly are provided, and the second flow guiding copper bars are arranged adjacent to each other.

9. The high-power flat wire winding motor according to any one of claims 1 to 8, characterized in that: Each of the flat wire windings includes a plurality of flat wires, each of the flat wires is stacked in the stator slot, and a first end and a second end of each of the flat wires are at least partially protruded from the outside of the stator slot.

10. The high-power flat wire winding motor according to any one of claims 1 to 8, characterized in that: The high-power flat wire winding motor further comprises a plurality of insulating layers, each of the insulating layers is arranged in a stator slot, and both ends of each insulating layer are at least partially protruded and arranged outside the stator slot.

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