Motor end portion threading structure
Patent Information
- Application Number
- CN202522739460.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-12-24
- Publication Date
- 2026-10-23
- Estimated Expiration
- 2035-12-24
AI Technical Summary
这种粗暴的翻折操作存在显著弊端：首先，它极易对导线内部的金属导体造成隐性损伤，如微断裂、绝缘层破损等，严重影响了导线的机械寿命和电气可靠性，为电机长期稳定运行埋下了安全隐患；其次，该过程完全依赖操作人员的经验和手感，不仅作业效率低下，而且一致性差，难以实现标准化和自动化生产
[0017]本实用新型的有益技术效果是：本实用新型的电机端部穿线结构通过在电机外壳内设置引线槽，引线槽内设置若干导线，且电机外壳的顶部包括顶面以及自顶面向上凸伸并与端盖相连的连接部，顶面上设有与引线槽相连通的引线通道，连接部上设有穿槽，引线槽、引线通道和穿槽相互连通，电机还包括封盖，封盖用于将引线槽、引线通道和穿槽全部遮盖。如此，在安装时可以将引线槽、引线通道和穿槽全部暴露出来，便于将引线槽内的导线自引线通道内穿入穿槽中，穿线便利，且在之后通过封盖将导线压实固定，并将引线槽、引线通道和穿槽全部遮盖，不仅能够起到防尘作用，固定也更为简单。
Smart Images
Figure CN224890458U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to a wire threading structure at the end of an electric motor, belonging to the field of electric motors. Background Technology
[0002] In a highly integrated modular structure combining a motor, reducer, and driver, the reducer is embedded within the motor's central space, resulting in a smaller and lighter overall module. Because the rotor's connecting end cover needs to be placed at the rear of the motor to mount a gear that meshes with the embedded reducer gear for speed reduction and torque amplification, the stator (excitation component) wires cannot be directly led out from the rear of the stator due to the presence of the rotor connecting end cover. The stator needs to be electrically connected via flexible wires (usually FPC flexible flat cable or enameled wire harness) from the front of the stator, passing through the narrow internal space of the motor, bypassing the rotor component, and connecting to a static circuit board fixed to the rear housing of the motor. This connection is crucial for achieving power transmission and signal feedback.
[0003] Currently, the commonly used connection process in the industry involves soldering one end of the wire to the stator, then manually threading the wire through the confined space inside the motor, avoiding the outer rotor section, and finally leading it to the outlet at one end of the motor, where it is soldered to the internal circuit board. During this threading process, due to the compact internal space and complex structure of the motor, operators often need to forcefully fold and twist the wire at a large angle to navigate around obstacles such as the internal rotor, end covers, and bearings to reach the designated position. This rough folding operation has significant drawbacks: First, it easily causes hidden damage to the metal conductor inside the wire, such as micro-fractures and insulation layer damage, seriously affecting the mechanical life and electrical reliability of the wire, posing a safety hazard to the long-term stable operation of the motor; second, this process relies entirely on the operator's experience and feel, resulting in low efficiency and poor consistency, making it difficult to achieve standardized and automated production.
[0004] Furthermore, existing methods of securing the wires after they are threaded into place are often rather simple and crude, such as using ordinary cable ties or applying adhesive to specific areas. This approach fails to provide effective and uniform stress relief and protection for the wires, especially in their critical and vulnerable stress concentration areas at the folds. Under the high-speed, high-frequency reciprocating motion of the motor, the folds of the wires are continuously subjected to alternating stress, making them prone to fatigue fracture due to stress concentration. At the same time, loose securing can also cause interference and wear between the wires and internal moving parts of the motor, resulting in abnormal noise or even short circuits.
[0005] In view of this, it is indeed necessary to improve the existing wiring structure at the motor end to solve the above problems. Utility Model Content
[0006] To solve the above-mentioned technical problems, this utility model provides a motor end wire threading structure, which facilitates wire threading and makes fixing more convenient.
[0007] The technical solution of this utility model is: A motor end-wire structure includes a motor housing and an end cap located on the top of the motor housing. The motor housing has a lead wire groove inside, and a plurality of wires are arranged in the lead wire groove. The top of the motor housing includes a top surface and a connecting part protruding upward from the top surface and connected to the end cap. The top surface has a lead wire channel communicating with the lead wire groove. The connecting part has a through slot. The lead wire groove, the lead wire channel, and the through slot are interconnected. The motor also includes a cover for completely covering the lead wire groove, the lead wire channel, and the through slot.
[0008] As a further improvement of this utility model, the lead wire groove is disposed near the inner wall surface of the motor housing, a limiting part is provided inside the motor housing, a stop part is provided on the limiting part, the stop part extends toward the top surface of the motor housing, and the lead wire groove is formed between the inner wall surface of the motor housing and the stop part.
[0009] As a further improvement of this utility model, the limiting part is a groove that is recessed away from the top surface, and the blocking part is provided with a snap-fit member, which is snapped and fixed in the groove.
[0010] As a further improvement of this utility model, a relief groove is recessed on the top surface of the motor housing, the lead wire channel is formed in the relief groove, and the lower surface of the relief groove extends toward the stop portion.
[0011] As a further improvement of this utility model, the lower surface of the avoidance groove is the lower surface of the through groove.
[0012] As a further improvement of this utility model, a gap is provided between the clearance groove and the stop part.
[0013] As a further improvement of this utility model, the top surface of the motor housing is provided with a lead wire port that communicates with the lead wire groove, and the connection between the lead wire port and the through groove is located in the lead wire channel.
[0014] As a further improvement of this utility model, the cover has a first end for covering the lead wire groove and a second end for covering the through groove. The first end is fixedly connected to the motor housing, and the second end is inserted into the through groove.
[0015] As a further improvement of this utility model, the cover is provided with a positioning part, and the top surface of the motor housing is provided with a corresponding mating part, so that the positioning part can be inserted into the positioning part and the mating part at the same time to fix the cover to the motor housing.
[0016] As a further improvement of this utility model, the upper surface of the cover is equal to or higher than the top surface of the motor housing.
[0017] The beneficial technical effects of this utility model are as follows: The motor end wiring structure of this utility model has a lead wire groove set inside the motor housing, in which several wires are arranged. The top of the motor housing includes a top surface and a connecting part that protrudes upward from the top surface and connects to the end cover. The top surface has a lead wire channel communicating with the lead wire groove, and the connecting part has a through groove. The lead wire groove, lead wire channel, and through groove are interconnected. The motor also includes a cover for completely covering the lead wire groove, lead wire channel, and through groove. In this way, the lead wire groove, lead wire channel, and through groove can be completely exposed during installation, making it easy to thread the wires in the lead wire groove from the lead wire channel into the through groove. The wire threading is convenient, and the wires are then pressed and fixed by the cover, and the lead wire groove, lead wire channel, and through groove are completely covered, which not only provides dust protection but also simplifies the fixing process. Attached Figure Description
[0018] Figure 1 This is a schematic diagram of a motor with a wire threading structure at the end of the motor according to a preferred embodiment of the present invention.
[0019] Figure 2 yes Figure 1 A schematic diagram of the structure after the cover and end cap are hidden.
[0020] Figure 3 yes Figure 2 A schematic diagram of the structure behind the hidden part of the motor housing. Detailed Implementation
[0021] In order to better understand the technical means of this utility model and to implement it in accordance with the contents of the specification, the specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate this utility model, but are not intended to limit the scope of this utility model.
[0022] Please see Figures 1 to 3As shown, this utility model discloses a wire-passing structure at the end of a motor 100. The motor 100 includes a motor housing 1 and an end cover 2 located on the top of the motor housing 1. The motor housing 1 has a lead wire groove 11 inside, and a plurality of wires are provided in the lead wire groove 11. The top of the motor housing 1 includes a top surface 12 and a connecting part 13 protruding upward from the top surface 12 and connected to the end cover 2. The top surface 12 has a lead wire channel 120 communicating with the lead wire groove 11. The connecting part 13 has a through groove 130. The lead wire groove 11, the lead wire channel 120 and the through groove 130 are interconnected to form a lead wire space. The motor 100 also includes a cover 3, which is used to completely cover the lead wire groove 11, the lead wire channel 120 and the through groove 130.
[0023] In this embodiment, the cover 3 is not installed during wire threading. At this time, the lead groove 11, the lead channel 120, and the through groove 130 are all exposed to the air. The operator can easily thread the wire from the lead groove 11 through the lead channel 120 into the through groove 130. The connecting part 13 and the end cap 2 form an installation space, which houses a circuit board. The wire passes through the through groove 130 into the installation space and is electrically connected to the circuit board. Thus, the wire path is clear and fixed, operation is simple, installation is convenient, and the risks of operating in a small space are avoided, improving installation ease. Afterwards, by fixing the cover 3, the lead groove 11, the lead channel 120, and the through groove 130 are completely covered. This not only fixes and limits the wire but also covers all openings, providing dust protection.
[0024] Specifically, the lead wire groove 11 is disposed near the inner wall surface of the motor housing 1, the motor housing 1 is provided with a limiting part, the limiting part is provided with a stop part 14, the stop part 14 extends toward the top surface 12 of the motor housing 1, and the lead wire groove 11 is formed between the inner wall surface of the motor housing 1 and the stop part 14.
[0025] In this embodiment, the limiting part is a recessed groove (not shown) facing away from the top surface 12, and the stop part 14 is provided with a snap-fit member (not shown), which snaps and fixes itself in the groove. Of course, the limiting part can also be a snap-fit protrusion, and the snap-fit member can be a snap-fit recess. The snap-fit fixing of the limiting part and the stop part 14 is achieved through the mutual cooperation of the snap-fit protrusion and the snap-fit recess.
[0026] In other embodiments, the stop portion 14 may also be threadedly fixedly connected to the limiting portion, or it may be integrally formed. There are no limitations on this.
[0027] The top surface 12 of the motor housing 1 is recessed with a relief groove, and the lead wire channel 120 is formed within the relief groove. The lower surface of the relief groove extends toward the stop portion 14. Preferably, a gap is provided between the relief groove and the stop portion 14. Of course, in other embodiments, the relief groove and the stop portion 14 can be integrally formed, as long as they form a connected channel, and there is no limitation thereto.
[0028] Preferably, the lower surface of the clearance groove is the lower surface of the through groove 130. The top surface 12 of the motor housing 1 is provided with a lead-in port 121 that communicates with the lead-in groove 11, and the connection between the lead-in port 121 and the through groove 130 is located within the lead-in channel 120. This arrangement ensures the shortest threading distance and facilitates changes and threading operations.
[0029] The cover 3 has a first end 31 for covering the lead groove 11 and a second end 32 for covering the through groove 130. The first end 31 is fixedly connected to the motor housing 1, and the second end 32 is inserted into the through groove 130.
[0030] Preferably, the cover 3 is provided with a positioning part 33, and the top surface 12 of the motor housing 1 is provided with a corresponding mating part, so that the positioning member 4 can simultaneously pass through the positioning part 33 and the mating part to fix the cover 3 to the motor housing 1. Of course, in other embodiments, the cover 3 can also be fixedly connected to the stop part 14 at the same time, and there is no limitation on this.
[0031] The upper surface of the cover 3 is equal to or higher than the top surface 12 of the motor housing 1. Preferably, the upper surface of the cover 3 is as flush as possible with the top surface 12 of the motor housing 1, which is more aesthetically pleasing.
[0032] In summary, the end-wire structure of the motor 100 of this utility model provides a lead wire groove 11 inside the motor housing 1, and a plurality of wires are arranged in the lead wire groove 11. The top of the motor housing 1 includes a top surface 12 and a connecting part 13 protruding upward from the top surface 12 and connected to the end cover 2. The top surface 12 is provided with a lead wire channel 120 communicating with the lead wire groove 11. The connecting part 13 is provided with a through groove 130. The lead wire groove 11, the lead wire channel 120 and the through groove 130 are interconnected. The motor 100 also includes a cover 3, which is used to completely cover the lead wire groove 11, the lead wire channel 120 and the through groove 130. In this way, during installation, the lead wire groove 11, the lead wire channel 120, and the through groove 130 can all be exposed, making it easy to pass the wires in the lead wire groove 11 through the lead wire channel 120 into the through groove 130. This makes wire threading convenient. Afterwards, the wires are pressed and fixed by the cover 3, and the lead wire groove 11, the lead wire channel 120, and the through groove 130 are completely covered, which not only provides dust protection but also simplifies the fixing process.
[0033] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.
Claims
1. A wiring structure for the end of a motor, characterized in that, The device includes a motor housing and an end cap located on top of the motor housing. The motor housing has a lead wire groove inside, and a plurality of wires are arranged in the lead wire groove. The top of the motor housing includes a top surface and a connecting part that protrudes upward from the top surface and is connected to the end cap. The top surface has a lead wire channel that communicates with the lead wire groove. The connecting part has a through slot. The lead wire groove, the lead wire channel, and the through slot are interconnected. The motor also includes a cover for completely covering the lead wire groove, the lead wire channel, and the through slot.
2. The motor end wiring structure according to claim 1, characterized in that, The lead wire groove is located near the inner wall of the motor housing. The motor housing has a limiting part and a stop part. The stop part extends toward the top surface of the motor housing. The lead wire groove is formed between the inner wall of the motor housing and the stop part.
3. The motor end wiring structure according to claim 2, characterized in that, The limiting part is a groove that is recessed away from the top surface, and the blocking part is provided with a snap-fit component, which is snapped and fixed in the groove.
4. The motor end wiring structure according to claim 2, characterized in that, The top surface of the motor housing is recessed with a clearance groove, the lead wire channel is formed in the clearance groove, and the lower surface of the clearance groove extends toward the stop portion.
5. The motor end wiring structure according to claim 4, characterized in that, The lower surface of the clearance groove is the lower surface of the through groove.
6. The motor end wiring structure according to claim 4, characterized in that, A gap is provided between the clearance groove and the stop part.
7. The motor end wiring structure according to claim 3, characterized in that, The top surface of the motor housing is provided with a lead-in port that communicates with the lead-in slot, and the connection between the lead-in port and the slot is located within the lead-in channel.
8. The motor end wiring structure according to claim 1, characterized in that, The cover has a first end for covering the lead slot and a second end for covering the through slot. The first end is fixedly connected to the motor housing, and the second end is inserted into the through slot.
9. The motor end wiring structure according to claim 8, characterized in that, The cover is provided with a positioning part, and the top surface of the motor housing is provided with a corresponding mating part, so that the positioning part can be inserted into the positioning part and the mating part at the same time to fix the cover to the motor housing.
10. The motor end wiring structure according to claim 1, characterized in that, The upper surface of the cover is equal to or higher than the top surface of the motor housing.