电机、设备以及驱控系统

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By employing a coaxially arranged torque stator and feedback stator assembly in the motor, with only a portion of the teeth wound and the iron core fixed by a positioning structure, the problems of complex motor manufacturing and high cost are solved, simplifying the process and reducing costs, while improving the accuracy of position analysis and the reliability of feedback signals.

CN224520875UActive Publication Date: 2026-07-17SUZHOU INOVANCE TECH CO LTD

Patent Information

Authority / Receiving Office: CN · China
Patent Type: Utility models(China)
Current Assignee / Owner: SUZHOU INOVANCE TECH CO LTD
Filing Date: 2025-05-09
Publication Date: 2026-07-17

AI Technical Summary

Technical Problem

In the existing technology, when the motor position feedback device is an external sensor, it is not suitable for motors with a large rotor inner diameter, resulting in complex manufacturing process and high cost.

Method used

The torque stator assembly and the feedback stator assembly are arranged coaxially. Only part of the teeth of the feedback core of the feedback stator assembly are used as winding teeth to wind the feedback winding. The torque core and the feedback core are fixed by a positioning structure to ensure positional accuracy.

Benefits of technology

It simplifies the motor manufacturing process, reduces costs, improves the accuracy of position analysis and the reliability of feedback signals, and reduces the amount of coils used and equipment investment.

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Abstract

本申请涉及一种电机、设备以及驱控系统。电机包括同轴设置的转矩定子组件及反馈定子组件。反馈定子组件包括反馈铁芯及反馈绕组，反馈铁芯的部分齿部为绕线齿，全部绕线齿组成绕线齿组，反馈绕组绕设于绕线齿组。上述电机，具有用于转矩输出的转矩定子组件及用于位置解析的反馈定子组件。其中，反馈定子组件的反馈铁芯仅部分齿部作为绕线齿，用于线圈缠绕。如此，反馈绕组的线圈不需要缠满全部的反馈铁芯齿部，绕线操作得到简化，使电机制造更简单，且线圈用量也得到减少，电机的成本降低。此外，仅部分齿部绕线，也有利于后续灌胶工艺的进行。

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Claims

1. An electric machine characterized in that, The motor includes a torque stator assembly (30) and a feedback stator assembly (50) arranged coaxially. The feedback stator assembly (50) includes a feedback core (51) and a feedback winding. Part of the teeth of the feedback core (51) are winding teeth (511). All the winding teeth (511) form a winding tooth group. The feedback winding is wound on the winding tooth group.

2. The electric machine of claim 1, wherein, All the winding teeth (511) form at least two sets of winding teeth, and each set of winding teeth is wound with a set of feedback windings. All the winding teeth are evenly arrayed in the circumferential direction of the feedback stator assembly (50).

3. The electric machine of claim 2, wherein, All of the aforementioned feedback windings are connected in series with the same phase line.

4. The electric machine of claim 1, wherein, The top of the winding tooth (511) away from the yoke of the feedback core (51) has an outwardly convex end face (5111).

5. The electric machine of claim 4, wherein, The convex end face (5111) is arc-shaped and convex.

6. The electric machine of claim 1, wherein, The feedback stator assembly (50) further includes a winding bobbin (53), the feedback winding is wound on the winding bobbin (53), and the winding bobbin (53) is sleeved on the winding teeth (511).

7. The motor according to claim 6, characterized in that, The winding teeth (511) have an inner groove (5113) on the radial circumferential side of the feedback core (51), and the winding skeleton (53) has a protrusion (531) that mates with the inner groove (5113); and / or, the winding skeleton (53) has a guide inner surface (533) that tapers in the direction away from the yoke of the feedback core (51).

8. The electric machine of claim 1, wherein, The torque stator assembly (30) includes a torque core (31); the torque core (31) is fixed to the feedback core (51) in the circumferential direction around the motor axis.

9. The electric machine of claim 8, wherein, The motor also includes a housing (10), and the torque stator assembly (30) and the feedback stator assembly (50) are disposed inside the housing (10); The housing (10) has a first positioning structure (11), and the torque core (31) has a first mating structure (311). The first mating structure (311) mates with the first positioning structure (11) and restricts the displacement of the torque core (31) relative to the housing (10) in the circumferential direction around the motor axis. The feedback core (51) has a second mating structure (517). The second mating structure (517) mates with the first positioning structure (11) and restricts the displacement of the feedback core (51) relative to the housing (10) in the circumferential direction around the axis.

10. The electric machine of claim 9, wherein, The first positioning structure (11) is a positioning groove provided on the inner surface of the housing (10) and extending along the motor axis; The first mating structure (311) is located on the circumferential side of the torque core (31) surrounding the motor axis and protrudes radially along the torque core (31); the second mating structure (517) is located on the circumferential side of the feedback core (51) surrounding the motor axis and protrudes radially along the feedback core (51).

11. The electric machine of claim 10, wherein, The first mating structure (311) includes a positioning key (3111) and a keyway (3113). The keyway (3113) is located on the circumferential side of the torque core (31) and extends along the motor axis. The positioning key (3111) simultaneously mates with the keyway (3113) and the positioning groove.

12. The electric machine of claim 11, wherein, The torque core (31) includes a plurality of spliced single-lobed cores (315), and at least one of the single-lobed cores (315) has the keyway (3113).

13. The electric machine of claim 10, wherein, The positioning groove includes a first positioning groove and a second positioning groove, wherein the first mating structure (311) mates with the first positioning groove, and the second mating structure (517) mates with the second positioning groove; and / or, in the circumferential direction surrounding the motor axis, the first positioning groove and the second positioning groove are spaced apart.

14. The electric machine of claim 9, wherein, The housing (10) also has a second positioning structure (13), which is located between the torque core (31) and the feedback core (51). The second positioning structure (13) has a first positioning surface (131) and a second positioning surface (133) that are perpendicular to the motor axis and arranged opposite to each other. The first positioning surface (131) abuts against the torque core (31), and the second positioning surface (133) abuts against the feedback core (51).

15. An apparatus, comprising: The device includes a frame and a main shaft protruding from the frame. The device also includes a motor as described in any one of claims 1-14. The motor further includes a torque rotor (71) and a feedback rotor (73). The torque rotor (71) is disposed within the torque stator assembly (30), and the feedback rotor (73) is disposed within the feedback stator assembly (50). The torque rotor (71) and the feedback rotor (73) are sleeved on the main shaft.

16. A drive system, characterized by The drive control system includes the motor as described in any one of claims 1-14, and further includes a drive control unit and a processing unit. The drive control unit is connected to the torque stator assembly (30), the processing unit is connected to the feedback stator assembly (50), and the processing unit is communicatively connected to the drive control unit.