阅读说明：本技术 电机用定子组件及定子 (Stator assembly for motor and stator ) 是由 龚宇 刘磊 于 2019-07-17 设计创作，主要内容包括：本发明提供了电机用定子组件及定子。该定子组件省略了现有技术中在铁芯齿部形成的燕尾槽,而将宽度与导体槽的宽度大致相同的槽楔直接安装于导体槽中并通过槽楔压环、导体和导体槽的侧壁相互配合在周向、径向和轴向三个方向上对槽楔进行限位的同时槽楔能够防止导体从导体槽掉出。这样,与现有技术的电机用定子组件相比,该槽楔固定结构不会减小铁芯齿部的宽度,因而铁芯齿部的磁通量不容易达到过饱和,因而避免了槽楔固定结构对定子的性能产生不利影响。另外,在根据本发明的电机用定子组件中,安装该槽楔时不仅可以将槽楔沿着轴向插入安装到导体槽中,而且还可以沿着径向将槽楔插入安装到导体槽中,安装方式灵活,能够提高安装效率。(The invention provides a stator assembly for a motor and a stator. The stator assembly omits a dovetail groove formed in the iron core tooth part in the prior art, and the slot wedge with the width approximately the same as that of the conductor slot is directly installed in the conductor slot and mutually matched with the side walls of the conductor slot through the slot wedge pressing ring, the conductor and the conductor slot in the circumferential direction, the radial direction and the axial direction to limit the slot wedge, and meanwhile, the slot wedge can prevent the conductor from falling out of the conductor slot. Like this, compare with stator module for the motor of prior art, this slot wedge fixed knot constructs the width that can not reduce the iron core tooth portion, therefore the magnetic flux of iron core tooth portion is difficult to reach the supersaturation, therefore has avoided slot wedge fixed knot structure to produce adverse effect to the performance of stator. In addition, in the stator assembly for a motor according to the present invention, the slot wedge can be inserted into the conductor slot not only in the axial direction but also in the radial direction when the slot wedge is installed, and the installation manner is flexible, and the installation efficiency can be improved.)

A stator assembly for an electric machine, comprising:

a core (1), wherein the core (1) comprises a cylindrical core main body part (11) and a plurality of core tooth parts (12) which protrude from the core main body part (11) towards the radial inner side and are arranged along the circumferential direction (C), and a conductor groove (1h) extending along the radial direction is formed between every two adjacent core tooth parts (12) in the circumferential direction (C);

a conductor (3) in each of which a plurality of conductors (3) are housed and mounted in each of the conductor grooves (1h), the plurality of conductors (3) being arranged in a radial direction;

a wedge (2) that accommodates and mounts the wedge (2) in each of the conductor slots (1h) such that the wedge (2) is located at a position radially inward of the plurality of conductors (3) in each of the conductor slots (1 h); and

slot wedge clamping ring (4), slot wedge clamping ring (4) in radial inboard fixed mounting in iron core tooth portion (12) and slot wedge clamping ring (4) from radial inboard with partly radially interfering of slot wedge (2), thereby conductor (3) with slot wedge clamping ring (4) are radially right slot wedge (2) carry on spacingly.

Stator assembly for an electrical machine according to claim 1, characterized in that both axial ends of the core teeth (12) are formed with a step structure recessed towards the radial outside and the slot wedges (2) are formed with a gap (2c) corresponding to the step structure, one of the wedge rings (4) being mounted with the step structure and the corresponding gap (2c) such that the two wedge rings (4) axially limit the slot wedges (2).

Stator assembly for an electrical machine according to claim 1 or 2, characterized in that the slot wedge ring (4) is fixedly mounted to the core teeth (12) in an interference fit.

A stator assembly for a motor according to any of claims 1 to 3,

the iron core (1) comprises a plurality of stator laminations (1b) stacked together in an axial direction in such a manner as to be aligned with each other and two stator end pressing plates (1a), the two stator end pressing plates (1a) are located at both ends of the iron core (1), and the slot wedge pressing ring (4) is fixedly mounted to the stator end pressing plates (1a) in such a manner as to press against the stator end pressing plates (1a) from a radially inner side.

The stator assembly for a motor of claim 4,

each stator end pressure plate (1a) comprises an annular end pressure plate main body (1a1) and a plurality of end pressure plate teeth (1a2) which protrude from the end pressure plate main body (1a1) towards the radial inner side and are arrayed along the circumferential direction (C),

each of the stator lamination sheets (1b) includes an annular lamination sheet main body (1b1) and a plurality of lamination sheet teeth (1b2) that protrude radially inward from the lamination sheet main body (1b1) and are arranged in the circumferential direction (C),

the core main body portion (11) is formed by the end presser body (1a1) and the laminated sheet body (1b1) being laminated together in the axial direction and the core tooth portion (12) is formed by the end presser teeth (1a2) and the laminated sheet teeth (1b2) being laminated together in the axial direction.

The stator assembly for the motor according to claim 4, wherein a radial inner end of the end lamination teeth (1a2) is located radially outward of a radial inner end of the corresponding laminated sheet tooth (1b2), so that the end lamination teeth (1a2) and the laminated sheet teeth (1b2) form a stepped structure of the core tooth part (12) to which the slot wedge ring (4) is mounted.

Stator assembly for an electrical machine according to claim 6, characterized in that when the inner diameter of the stator end pressure plate (1a) is D1 and the inner diameter of the stator lamination (1b) is D2, and the outer diameter of the slot wedge ring (4) is D1 and the inner diameter of the slot wedge ring (4) is D2, it suffices

h is (D1-D2)/2, and D1 is D1, and D2 is D2.

The stator assembly for a motor of claim 7,

the radial inner circumferential surface of the slot wedge pressing ring (4) is approximately flush with the radial inner end surface of the laminated sheet tooth (1b 2); and/or

The axial thickness of the slot wedge compression ring (4) is approximately equal to that of the stator end pressing plate (1 a).

A stator comprising at least one stator assembly for an electrical machine according to any of claims 1 to 8.

The stator as claimed in claim 9, wherein the stator comprises a plurality of stator assemblies for the motor, the stator assemblies for the motor being connected to each other in series in an axial direction in a coaxial manner.