Parallel connection ring structure suitable for large traction motor
By applying a large traction motor and a chain structure, the problems of large space occupation and insufficient heat dissipation in the design of high-power motor output lines are solved, achieving compact connection and uniform heat dissipation of the motor, and improving the performance and life of the motor.
Patent Information
- Application Number
- CN202423220592.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-25
- Publication Date
- 2025-11-25
- Estimated Expiration
- 2034-12-25
AI Technical Summary
Existing high-power motors suffer from problems such as large space occupation and insufficient heat dissipation in their outgoing cable design, which affect their service life and power performance.
It adopts a parallel ring structure suitable for large traction motors. The terminals on the parallel rings are welded and fixed to the copper busbars, and the connecting busbars are welded to the coils. The terminals are L-shaped, and the inner diameters of multiple parallel rings increase or decrease. The annular cross-section is large, and mica tape is wrapped around it for insulation to achieve uniform heat dissipation.
It improves the compactness and space utilization of the motor structure, connection reliability, uniform heat dissipation, adaptability to motors of different specifications, and enhances the motor's heat dissipation capacity and service life.
Smart Images
Figure CN223599617U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of traction motor technology, specifically to a chain structure applicable to large traction motors. Background Technology
[0002] Traction motors mainly refer to the motors used for traction in various electric vehicles. Their primary function is to drive the wheel axle. With the rapid development of the industrial age, the demand for high-power electric motors is increasing. Electric vehicles are required to develop towards higher quality and higher performance, and simultaneously, the structure and performance of traction motors must be optimized.
[0003] To optimize the structure and improve the performance of high-power electric motors, motor engineers have made active efforts to improve them. For example, they have improved the design of the electromagnetic structure of the motor and adopted electromagnetic materials with better performance. They have also optimized the mechanical structure of the motor to make the spatial structure more compact. Generally, the bearing housing structure of the motor is refined and lightened.
[0004] However, the issue of wiring for high-power motors has always been a challenge in the motor industry. The main challenge lies in how to make the wiring as short as possible and how to ensure a smooth lead-out, while also ensuring adequate heat dissipation. These unfavorable factors have always affected the lifespan and power of high-power motors. Utility Model Content
[0005] This utility model aims to solve at least one of the technical problems existing in the prior art.
[0006] Therefore, one objective of this utility model is to propose a parallel structure suitable for large traction motors. This parallel structure can better adapt to the connection of the output coils of motors of different specifications, and occupies less space, with more reliable connection, thus better meeting the development needs of electric vehicles for traction motors.
[0007] To achieve the above objectives, this utility model provides the following technical solution: a parallel-loop structure applicable to large traction motors, comprising a traction motor, a coil provided on the outside of the traction motor, a plurality of parallel loops provided on one side of the coil, a plurality of connecting rows fixedly connected to the outer wall of each parallel loop in a circumferential distribution, and a plurality of terminals fixedly connected to the outer wall of each parallel loop in a circumferential distribution, a welding part provided on the outer wall of the coil, the ends of the connecting rows being welded to the welding part, and copper busbars fixedly connected to the terminals.
[0008] Preferably, the plurality of parallel rings are arranged at equal intervals, and the inner diameters of the plurality of parallel rings increase or decrease sequentially.
[0009] Preferably, a mica strip is wound between every two of the linked rings.
[0010] Preferably, the connector is L-shaped.
[0011] Compared with the prior art, the beneficial effects of this utility model are: this utility model fixes the terminals on the parallel ring to the copper busbar by welding, and welds the connecting busbar to the coil welding part, resulting in a compact structure, high space utilization, convenient and reliable connection. Multiple terminals are welded to the copper busbar in a dispersed manner, which can dissipate heat evenly and adapt to high-power motors. The inner diameter of the parallel ring increases or decreases, and the annular cross-section has a large heat dissipation area, which can further improve the heat dissipation effect. Attached Figure Description
[0012] Figure 1 This is a schematic diagram of the applicable large traction motor and its interlocking structure according to an embodiment of the present utility model;
[0013] Figure 2 This is a side view of the applicable large traction motor and its interlocking structure according to an embodiment of the present utility model;
[0014] Figure 3 This is a schematic diagram of the coil and welded part in the applicable large traction motor and interlocking structure according to an embodiment of the present utility model;
[0015] Figure 4 This is a schematic diagram of the structure when the connecting row and the coil are connected in the parallel loop structure of a large traction motor according to an embodiment of the present utility model.
[0016] In the diagram: 1. Parallel loop; 2. Connecting bar; 3. Terminal; 4. Mica tape; 5. Traction motor; 6. Coil; 7. Welding section; 8. Copper busbar. Detailed Implementation
[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0018] Please see Figures 1-3 The present invention provides a large traction motor with a linked structure, including: traction motor 5.
[0019] Among them, reference Figures 1-4The traction motor 5 has a coil 6 on its outside. On one side of the coil 6, there are multiple parallel rings 1. The outer wall of each parallel ring 1 is fixedly connected with multiple connecting bars 2 in a circumferential arrangement. The outer wall of each parallel ring 1 is also fixedly connected with multiple terminals 3 in a circumferential arrangement. The outer wall of the coil 6 has a welding part 7. The ends of the connecting bars 2 are welded to the welding part 7. Copper busbars 8 are fixedly connected to the terminals 3. In use, the terminals 3 on the parallel ring 1 are welded to the copper busbars 8. Multiple terminals 3 make it convenient for the copper busbars 8 to exit. Multiple connecting bars 2 are welded to the welding parts 7 on the coil 6 to ensure reliable connection between the two.
[0020] In addition, the dispersed welding of multiple terminals 3 to the copper busbar 8 and connecting busbar 2 to the coil 6 also ensures that the end of the coil 6 is heated evenly due to the increase in internal temperature when the motor is working.
[0021] Furthermore, the multiple parallel rings 1 are arranged at equal intervals, and the inner diameters of the multiple parallel rings 1 increase or decrease sequentially. In order to adapt to the high power of the motor, the inner diameters of the multiple parallel rings 1 can be increased or decreased sequentially to adapt to the specifications of different motors. In addition, the cross-section of the ring structure of the parallel rings 1 is larger, and the heat dissipation area is increased.
[0022] like Figure 2 As shown, mica tape 4 is wrapped between every two parallel loops 1, and each parallel loop 1 is wrapped with insulating and corona-resistant mica tape 4 to prevent them from interfering with each other.
[0023] Specifically, the connector 3 is L-shaped, which facilitates the bonding, welding, or other fixing of the copper busbar 8.
[0024] Based on the above technical solution, the working steps of this solution are summarized as follows: During use, the terminals 3 on the parallel loop 1 are welded and fixed to the copper busbar 8. Multiple terminals 3 facilitate wire exit from the copper busbar 8. Multiple connecting sections 2 are welded and fixed to the welding parts 7 on the coil 6, ensuring reliable connection. This results in a compact motor structure with high space utilization, convenient connection, and reliable fixing.
[0025] Meanwhile, the dispersed welding of multiple terminals 3 to the copper busbar 8 and the connecting busbar 2 to the coil 6 also ensures that the end of the coil 6 is heated evenly due to the increase in internal temperature when the motor is working, and is less likely to be heated in one direction.
[0026] In addition, to accommodate the high power of the motor, the inner diameters of multiple parallel rings 1 can be sequentially increased or decreased to accommodate different motor specifications. Furthermore, the cross-section of the parallel rings 1 with the annular structure is larger, resulting in a larger heat dissipation area and thus better heat conduction of the motor.
[0027] All parts not described in this utility model are the same as or can be implemented using existing technology. Although embodiments of this utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of this utility model, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A chain structure applicable to large traction motors, comprising a traction motor (5), wherein the traction motor (5) is provided with a coil (6) on its exterior, characterized in that: The coil (6) has multiple parallel loops (1) on one side. The outer wall of each parallel loop (1) is fixedly connected with multiple connecting bars (2) in a circumferential distribution. The outer wall of each parallel loop (1) is fixedly connected with multiple terminals (3) in a circumferential distribution. The outer wall of the coil (6) is provided with a welding part (7). The ends of the connecting bars (2) are welded to the welding part (7). The terminals (3) are fixedly connected with copper busbars (8).
2. The interconnected structure applicable to large traction motors according to claim 1, characterized in that: The multiple parallel rings (1) are arranged at equal intervals, and the inner diameters of the multiple parallel rings (1) change sequentially in an increasing or decreasing manner.
3. A chain structure applicable to large traction motors according to claim 2, characterized in that: A mica strip (4) is wrapped between each two of the aforementioned interlocking loops (1).
4. A chain structure applicable to large traction motors according to claim 1, characterized in that: The connector (3) is L-shaped.