Stator structure of alternating current motor
By using inter-pole connections and busbars in series and parallel connection in the stator structure of the AC motor, the welding and binding process is good, which enhances the connection stability and vibration resistance of the stator coil group, solves the problem of poor welding and binding process, and achieves high-efficiency operation and protection of the motor.
Patent Information
- Application Number
- CN202511546896.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-10-28
- Publication Date
- 2026-01-30
AI Technical Summary
In the existing technology, the welding and binding process of the stator structure of AC motors is poor, and the resistance to vibration and impact is low, which makes the stator prone to wire burn-out failure.
The stator coil group is connected in series and parallel by inter-pole wires and busbars respectively. The welding and binding process is good. The stator coil group is bound to the frame. The busbar is a whole ring structure with insulation components for support and protection, which improves connection stability and vibration resistance.
It improves the connection stability of series and parallel connections of AC motor stator coils, enhances the resistance to vibration and shock, avoids wire burnout, balances current to prevent overheating, and ensures circuit independence and protection.
Smart Images
Figure CN121440975A_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The application belongs to the technical field of alternating current motors, and particularly relates to an alternating current motor stator structure. BACKGROUND
[0002] The current alternating current motor stator is one of the core components of a motor, mainly composed of a stator core, a stator winding and a machine base, and the structural design directly affects the performance, efficiency and reliability of the motor, As the commonly used series-parallel connection stator structure, the connection mode of winding branch is flexibly combined to realize the technical scheme of high-efficiency operation of the motor under different working conditions, but the stator coil connection of the structure is connected in a wire lap joint mode, the welding and binding process is poor, the vibration impact resistance of the connection structure is low, and the stator is prone to connection burnout failure during motor operation. SUMMARY
[0003] The application aims to overcome the defects of the prior art and provide an alternating current motor stator structure, which is connected by inter-pole connection lines and collector rings respectively connected with the stator coil groups in series and parallel connection, has good welding and binding process, the stator coil groups are bound on the machine base, the inter-pole connection lines and the collector rings are bound together with the stator coil groups, the connection stability of the alternating current motor electronic coil series and parallel connection is greatly improved, the vibration impact resistance of the connection structure is improved, and the problem of connection burnout during motor operation is avoided.
[0004] The application aims to overcome the defects of the prior art and provide an alternating current motor stator structure, which is connected by inter-pole connection lines and collector rings respectively connected with the stator coil groups in series and parallel connection, has good welding and binding process, the stator coil groups are bound on the machine base, the inter-pole connection lines and the collector rings are bound together with the stator coil groups, the connection stability of the alternating current motor electronic coil series and parallel connection is greatly improved, the vibration impact resistance of the connection structure is improved, and the problem of connection burnout during motor operation is avoided. An alternating current motor stator structure, comprising a stator and a stator winding installed on the stator, wherein the stator winding comprises a plurality of stator coil groups. The connection lines in series connection between the stator coil groups are connected with inter-pole connection lines, the connection lines in parallel connection between the stator coil groups are connected with collector rings, the inter-pole connection lines and the collector rings are bound together with the stator coil groups, and the stator coil groups are fixed on a machine base.
[0005] In one embodiment, the connection lines in series connection between the stator coil groups are welded together with the inter-pole connection lines.
[0006] In one embodiment, the connection lines in parallel connection between the stator coil groups are welded together with the collector rings.
[0007] In one embodiment, the machine base is provided with a fixed support, an end hoop is bound and fixed to an end of the fixed support away from the machine base, and the end of the stator coil group is bound and fixed to the end hoop.
[0008] In one embodiment, the collector rings are all integral ring structures. Through the embodiment, the current of the whole-ring structure of the bus ring can be balanced, and overheating can be avoided.
[0009] In one embodiment, adjacent coils in the stator coil group are connected through coil junctions.
[0010] In one embodiment, a first insulating member is arranged between adjacent bus rings. Through the embodiment, the support strength for the connection of the bus ring is provided.
[0011] In one embodiment, a second insulating member is arranged between the stator coil group and the bus ring. Through the embodiment, the structural support for the bus ring is provided, the axial movement and the radial deviation of the bus ring during high-speed rotation of the rotor are avoided, and the auxiliary protection against corrosion is also provided.
[0012] In one embodiment, the inter-pole connecting wires and the bus rings are fixed by binding the ends of the stator coil group or the coil junctions.
[0013] The present application has the following beneficial effects: (1) The inter-pole connecting wires and the bus rings are respectively connected to the series-parallel connecting wires of the stator coil group through welding, and the welding and binding processes are good, and the stator coil group is bound to the machine base, the inter-pole connecting wires and the bus rings are bound together with the stator coil group, which greatly improves the connection stability of the series-parallel connecting wires of the electronic coil of the alternating current motor, improves the anti-vibration impact ability of the connecting wire structure, and avoids the problem of burning of the connecting wire during operation of the motor.
[0014] (2) The bus rings are designed in a whole-ring structure, the current is balanced, and overheating is avoided.
[0015] (3) The insulating members between adjacent bus rings and between the bus rings and the stator coils avoid circuit short circuit, guarantee the independence of the loop, provide structural support for the bus rings, avoid axial movement and radial deviation of the bus rings during high-speed rotation of the rotor, and also provide auxiliary protection against corrosion. BRIEF DESCRIPTION OF DRAWINGS
[0016] The present application will be described in more detail below based on the embodiments and with reference to the accompanying drawings. In the drawings: Figure 1 The structural schematic diagram of the present application is shown; In the drawings, the same parts are denoted by the same reference numerals. The drawings are not drawn according to the actual scale.
[0017] Reference numerals: 1 - stator coil group, 2 - base, 3 - fixing support, 4 - end hoop, 5 - first insulation piece, 6 - first bus ring, 7 - second insulation piece, 8 - second bus ring, 9 - third bus ring, 10 - fourth bus ring, 11 - first inter-pole connecting wire, 12 - second inter-pole connecting wire, 13 - coil joint. DETAILED DESCRIPTION
[0018] The application will be further described below with reference to the accompanying drawings.
[0019] The application provides an alternating current motor stator structure, as shown in the drawings, comprising a stator and a stator winding mounted on the stator, the stator winding comprising a plurality of stator coil groups 1. Figure 1 In the application, the connecting wires in series connection between the stator coil groups 1 are welded with the inter-pole connecting wires, and the connecting wires in parallel connection between the stator coil groups 1 are welded with the bus rings, and the inter-pole connecting wires and the bus rings are tied together with the stator coil groups 1, and the stator coil groups 1 are fixed on the base 2. In particular, the connecting wires in series connection between the stator coil groups 1 are welded with the inter-pole connecting wires, and the connecting wires in parallel connection between the stator coil groups 1 are welded with the bus rings. It should be noted that, in the embodiment, the inter-pole connecting wires and the bus rings are welded with the connecting wires in series and parallel connection with the stator coil groups 1, respectively, which has good welding and tying process, improves product quality and production efficiency, and reduces production cost, so as to realize the processing effect of "convenience, stability, high quality and low cost".
[0020] Further, the base 2 is provided with a fixing support 3, and the end hoop 4 is tied and fixed at the end of the fixing support 3 away from the base 2, and the end of the stator coil group 1 is tied and fixed on the end hoop 4, that is, the stator coil group 1 is tied on the base 2, and the inter-pole connecting wires and the bus rings are tied together with the stator coil groups 1, so as to greatly improve the connection stability of the connecting wires in series and parallel connection of the alternating current motor electronic coil, improve the anti-vibration impact ability of the connecting wire structure, and avoid the problem of burning of the connecting wire during the operation of the motor. In an embodiment, the bus rings are all integral ring structures, that is, the integral ring structure of the bus ring can balance the current and avoid overheating. In an embodiment, the first insulation piece 5 is arranged between adjacent bus rings, and the second insulation piece 7 is arranged between the stator coil group 1 and the bus ring, that is, the insulation pieces arranged between adjacent bus rings and between the bus ring and the stator coil can avoid circuit short circuit, guarantee the independence of the loop, simultaneously support the structure of the bus ring, avoid axial movement and radial deviation of the bus ring during high-speed rotation of the rotor, and also play an auxiliary protection role of corrosion resistance. In an embodiment, the inter-pole connecting wires and the bus rings are tied and fixed with the end of the stator coil group 1 or the coil joint 13, as shown in the drawings. Figure 1 As shown, the first bus ring 6 and the second bus ring 8 are provided with the first insulation 5, and the parallel connection wires of the stator coil group 1 are connected through the second insulation 7, the first bus ring 6 and the second bus ring 8 are bundled as adjacent bus rings at the end of the stator coil group 1, and the third bus ring 9 and the fourth bus ring 10 are close to each other, and are bundled together with the adjacent first inter-pole connection wire 11 and the second inter-pole connection wire 12 on the coil joint 13 of the stator coil group 1, that is, according to the actual situation, the bus rings close to each other and the inter-pole connection wires are bundled as a whole on the stator coil group 1; In one embodiment, the assembly process of the alternating current motor stator structure is as follows: The fixed support 3 is welded on the machine base 2, and the end hoop 4 is bundled on the fixed support 3; The linear part of the stator coil group 1 is embedded in the core slot of the machine base 2, and the end of the stator coil group 1 is bundled and fixed on the end hoop 4; The lead wire head in parallel connection between the stator coil group 1 is welded with the first bus ring 6, the second bus ring 8, the third bus ring 9 and the fourth bus ring 10; The lead wire head in series connection between the stator coil group 1 is welded with the first inter-pole connection wire 11 and the second inter-pole connection wire 12; Finally, the first insulation 5, the second insulation 7, the first bus ring 6 and the second bus ring 8 are bundled and fixed with the end of the stator coil group 1, and the third bus ring 9, the fourth bus ring 10, the first inter-pole connection wire 11 and the second inter-pole connection wire 12 are bundled and fixed with the coil joint 13 of the stator coil group 1.
[0021] In the description of the present application, it should be understood that the terms "upper", "lower", "bottom", "top", "front", "back", "inner", "outer", "left", "right" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.
[0022] Although the present application is described herein with reference to particular embodiments, it should be understood that these examples are merely illustrative of the principles and applications of the present application. It should therefore be understood that numerous modifications can be made to the exemplary embodiments, and that other arrangements can be devised without departing from the spirit and scope of the application as defined by the appended claims. It should be understood that different dependent claims and features described herein can be combined in ways other than the original claims describe. It should also be understood that features described in connection with individual embodiments can be used in other described embodiments.
Claims
1. An alternating current motor stator structure, characterized by, The stator comprises a stator winding mounted on the stator, and the stator winding comprises a plurality of stator coil groups; The plurality of stator coil groups are connected in series and parallel through connecting wires, the connecting wires connected in series between the stator coil groups are connected with inter-pole connecting wires, the connecting wires connected in parallel between the stator coil groups are connected with collector rings, the inter-pole connecting wires and the collector rings are tied together with the stator coil groups, and the stator coil groups are fixed on a machine base.
2. An alternating current motor stator structure as set forth in claim 1 wherein, The connecting wires connected in series between the stator coil groups are welded together with the inter-pole connecting wires.
3. An alternating current motor stator structure as set forth in claim 1, wherein The connecting wires connected in parallel between the stator coil groups are welded together with the collector rings.
4. An alternating current motor stator structure as set forth in claim 1 wherein, The machine base is provided with a fixing support, and an end hoop is tied and fixed to an end of the fixing support away from the machine base, and the end of the stator coil group is tied and fixed to the end hoop.
5. An alternating current motor stator structure as set forth in claim 1 wherein, The collector rings are all integral ring structures.
6. An alternating current motor stator structure as set forth in claim 1 wherein, Adjacent coils in the stator coil group are connected through a coil joint.
7. An alternating current motor stator structure as set forth in claim 1 wherein, First insulating members are arranged between adjacent collector rings.
8. An alternating current motor stator structure as set forth in claim 3, wherein Second insulating members are arranged between the stator coil group and the collector ring.
9. An alternating current motor stator structure as set forth in claim 6 wherein, The inter-pole connecting wires and the collector rings are tied and fixed to the end of the stator coil group or the coil joint.