WO2019042038A1 - 定子组件、电机及压缩机 - Google Patents

定子组件、电机及压缩机 Download PDF

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Publication number
WO2019042038A1
WO2019042038A1 PCT/CN2018/096158 CN2018096158W WO2019042038A1 WO 2019042038 A1 WO2019042038 A1 WO 2019042038A1 CN 2018096158 W CN2018096158 W CN 2018096158W WO 2019042038 A1 WO2019042038 A1 WO 2019042038A1
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WO
WIPO (PCT)
Prior art keywords
stator
portions
tooth
stator assembly
yoke
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PCT/CN2018/096158
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English (en)
French (fr)
Inventor
陈金涛
王飞
Original Assignee
广东威灵电机制造有限公司
美的威灵电机技术（上海）有限公司
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Application filed by 广东威灵电机制造有限公司, 美的威灵电机技术（上海）有限公司 filed Critical 广东威灵电机制造有限公司
Publication of WO2019042038A1 publication Critical patent/WO2019042038A1/zh

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    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K1/00—Details of the magnetic circuit
    • H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
    • H02K1/12—Stationary parts of the magnetic circuit
    • H02K1/14—Stator cores with salient poles

Definitions

  • the present invention relates to the field of electrical machines, and in particular to a stator assembly, a motor and a compressor.
  • the compressor is an important component of a refrigeration device or the like in which a motor is mounted.
  • the stator of the electric machine is a core component, wherein the stator includes an annular yoke portion and a plurality of tooth portions extending radially inward from the yoke portion for winding the coil.
  • the size of the notch between the ends of the adjacent two teeth has a large influence on the winding speed.
  • the larger the notch the easier it is to wind the coil.
  • the size of the notch also has a large influence on the electromagnetic performance of the stator. If the notch is too large, the magnetic field harmonic content will be large. Therefore, it is necessary to reduce the size of the notch as much as possible.
  • stator structures adopt a modular structure, that is, the stator structure is decomposed into a plurality of parts in the circumferential direction, and each part includes a tooth portion for winding a coil, and after the coil is wound around the tooth, a plurality of teeth are spliced into stator.
  • Such structural strength is relatively small and its assembly process increases time costs.
  • an aspect of the present invention provides a stator assembly, wherein the stator assembly includes two stator portions including a tubular yoke portion and an inner peripheral surface connected to the yoke portion and having a diameter To the extended tooth portion, an inner circumferential surface of the yoke portion between the adjacent tooth portions is provided with an axially extending card groove, and the tooth portion includes an axially connected first tooth segment and a second portion a tooth segment, the first tooth segment is located in the yoke portion, and the radially outer end of the second tooth segment is provided with a snap portion corresponding to the card slot, and inner end faces of the two yoke portions Aligning and engaging each other, wherein the snap portions of each of the stator portions are inserted into the card slots of the other of the stator portions in a one-to-one correspondence.
  • the stator assembly includes a plurality of wires, the wires are partially wound around the tooth portion forming a coil portion, and a portion of the wire that is not wound around the tooth portion is attached to an end surface of the outer end of the yoke portion .
  • each of the wires is wound on two of the tooth portions of one of the stator portions to form two of the coil portions, and the wire further includes a first end connected to the two of the coil portions An interphase connection, a lead line connected to a second end of one of the coil portions, and a neutral point connection connected to a second end of the other coil portion, wherein the plurality of neutral points are connected in common Forming a neutral point, wherein the lead wire on one of the stator portions is connected to the lead wire on the other of the stator portions, the phase-to-phase connection, the lead-out line, and the neutral point connection
  • the wire is attached to the end surface of the outer end of the yoke.
  • each of said stator portions includes an even number of said teeth symmetrical about a center of said stator portion, each of said wires being wound around two of said teeth of said one of said stator portions that are symmetrical about a central axis on.
  • one of the two adjacent tooth portions is provided with one of the card slots, and one of the two adjacent card slots is provided between the two Tooth.
  • a stop portion is provided on the circumferential side of the radially inner end of the tooth portion.
  • the card slot includes a first groove portion located radially outward and a second groove portion located radially inward, the circumferential width of the first groove portion being greater than the circumferential width of the second groove portion, The circumferential width of the second groove portion is larger than the circumferential width of the tooth portion, and the engaging portion includes a first step portion inserted into the first groove portion and a second step inserted into the second groove portion unit.
  • the yoke portion and the first tooth segment are formed by a plurality of first punching sheets in an axially laminated connection
  • the second tooth segments are formed by a plurality of second punching sheets in an axially laminated connection
  • the second tooth segment is bonded to the first tooth segment by glue, or one of the two end faces of the first tooth segment and the second tooth segment that are joined to each other is formed with a groove, and the other is formed There is a buckle, and the buckle card is installed in the groove.
  • the stator portion is made by a powder metallurgy process.
  • the first tooth segment, the second tooth segment and the yoke have the same axial dimension, and the axial ends of the first tooth segment and the axial ends of the yoke are respectively The plates are flush with each other, and the card slot penetrates the yoke portion in the axial direction.
  • the two stator portions have the same structure.
  • a second aspect of the invention provides an electric machine in which the electric machine is mounted with the stator assembly of the above aspect.
  • a third aspect of the invention provides a compressor in which the compressor is mounted with the motor described in the above scheme.
  • the stator assembly is formed by combining two stator portions, the tooth portions of the two stator portions are circumferentially arranged alternately, and there is sufficient space between adjacent tooth portions of each stator portion, which is convenient for the coil winding operation and improves The efficiency is achieved, and the yoke portion of the stator portion can be integrally formed, improving the overall strength of the stator portion.
  • FIG. 1 is a schematic structural view of a stator assembly according to an embodiment of the present invention.
  • FIG. 2 is an exploded view of a stator assembly in accordance with an embodiment of the present invention
  • FIG. 3 is a schematic structural view of a stator portion according to an embodiment of the present invention.
  • FIG. 4 is a schematic structural view of the stator portion as viewed in the axial direction according to an embodiment of the present invention
  • Figure 5 is a winding manner of one of the stator portions according to an embodiment of the present invention.
  • FIG. 6 is a winding manner of another stator portion according to an embodiment of the present invention.
  • Figure 7 is a diagram showing the manner in which the wires wound around the two stator portions are connected in accordance with an embodiment of the present invention.
  • the present invention provides a stator assembly, wherein the stator assembly includes two stator portions including a tubular yoke 1 and teeth extending radially from an inner peripheral surface of the yoke 1 2, an inner circumferential surface of the yoke portion 1 between the adjacent tooth portions 2 is provided with an axially extending card slot 11 including an axially connected first tooth segment 21 and a first a second tooth segment 22, the first tooth segment 21 is located in the yoke portion 1, and the radially outer end of the second tooth segment 22 is provided with a latching portion 23 corresponding to the card slot 11, two The inner end faces of the yoke portions 1 are aligned and joined to each other, and the snap portions 23 of each of the stator portions are inserted into the card slots 11 of the other of the stator portions in a one-to-one correspondence.
  • the toothing 2 comprises a first tooth segment 21 and a second tooth segment 22, the first tooth segment 21 being located in the stator yoke portion 1 in which it is located, and the second tooth segment 22 being located in the yoke portion 1 of the other stator portion.
  • the card slot 11 is disposed between the adjacent two tooth portions 2, and can be engaged with the engaging portion 23 of the second tooth segment 22 of the other stator portion.
  • the two stator portions can be fixed relatively, in particular the two stator portions can be prevented from rotating relative to each other, and the two stator portions can be prevented from being separated from each other.
  • a card slot 11 may be provided between every two tooth portions 2, or a card slot 11 may be provided only between the partial tooth portions 2.
  • the second tooth segments 22 are formed on the same side of the yoke portion 1 in the axial direction, and the plurality of second tooth segments 22 of one of the stator portions are translated into the corresponding card slots 11 of the other stator portion in the axial direction. Thereby two stator parts can be combined to form the stator assembly.
  • the tooth portions 2 of the two stator portions can be arranged to cross each other in the circumferential direction, thereby improving the tightness of the arrangement of the tooth portions 2 and reducing the relationship between the two tooth portions 2
  • the slot size conversely, before the two stator portions are combined, since the tooth portions 2 of the other stator portion are not inserted between the adjacent tooth portions 2, the space between the adjacent tooth portions 2 is relatively large.
  • the winding operation of the coil can be more convenient, and the production processing efficiency is improved.
  • the two stator portions are combined in an axial connection, which is convenient for direct plug connection, and each stator portion is integrated in the circumferential direction. Structure with higher strength.
  • the stator assembly includes a plurality of wires 3 partially wound around the tooth portion 2 to form a coil portion 31, and a portion of the wire 3 not wound around the tooth portion 2 is attached to the yoke
  • the outer end of the portion 1 is on the end.
  • the wire 3 is partially wound around the tooth portion 2 to form a coil portion 31, and the unwound portion may be attached to the end surface of the outer end of the yoke portion 1, that is, the end surface not joined to the other stator portion, at the center of the stator portion
  • the position should be such as to avoid the passage of the wire 3 to prevent the wire 3 from interfering with the rotor inserted into the stator portion.
  • Each of the wires 3 can be used only for one stator portion, so that the two stator portions are relatively independent, and the winding of the wires 3 can reduce the winding difficulty before the two stator portions are combined and connected.
  • each of the wires 3 is wound around two of the tooth portions 2 of one of the stator portions to form two of the coil portions 31, and the wires 3 further include two coil portions 31 connected thereto.
  • the neutral point wires 34 are connected in common to form a neutral point, wherein the lead wire 33 on one of the stator portions is connected to the lead wire 33 on the other of the stator portions, and the interphase connection
  • the wire 32, the lead wire 33, and the neutral point wire 34 are attached to the outer end surface of the yoke portion 1. As shown in FIG. 5 and FIG.
  • each of the wires 3 includes two coil portions 31, an inter-phase connecting line 32, a lead-out line 33, and a neutral point connecting line 34, and the plurality of wires 3 are respectively passed.
  • the neutral point connection 34 is connected to the neutral point (O1 in FIG. 5 and O2 in FIG. 6), wherein the wire 3 not wound around the tooth portion 2 includes the interphase line 32, the lead line 33, and the neutral point line 34.
  • These portions can be attached to the end face of the outer end of the yoke 1 to reduce the influence on the central space of the stator portion.
  • Figure 7 shows the manner in which the wires 3 are connected between the two stator portions.
  • the two wires 3 from the two stator portions are respectively connected together by the lead wires 33.
  • the A1 phase is connected to the A2 phase to form the A phase
  • three Phases A, B, and C are connected to three-phase power supplies, respectively.
  • each wire 3 can also be wound around one or more teeth 2, and the power supply of the coil can be two-phase or three-phase.
  • each of the stator portions includes an even number of the tooth portions 2 that are symmetrical about a center of the stator portion, and each of the wires 3 is wound around two of the stator portions that are symmetrical about a central axis.
  • the two tooth portions 2 corresponding to each of the wires 3 are opposed to each other, and the wires of the two tooth portions 2 are passed through the center axis, in particular, in the case where the power supply is three-phase, each The stator portion may have a tooth portion 2 of 3n (n is 1, 2, 3, ...) pair.
  • one of the two adjacent tooth portions 2 is provided with one of the card slots 11, and one of the two adjacent card slots 11 is disposed between The tooth portion 2. That is, as shown in FIGS. 2, 3, and 4, the tooth portion 2 and the card slot 11 are alternately arranged in the circumferential direction, and between the two stator portions, each of the stator portions is arbitrarily adjacent. There is a space between the two tooth portions 2 for accommodating the tooth portion 2 of the other stator portion, and any two adjacent tooth portions 2 have a large size therebetween, so that the coils of the two tooth portions 2 are Winding operation is more convenient.
  • a stopper portion 26 is provided on the circumferential side surface of the radially inner end of the tooth portion 2. As shown in FIGS. 1 and 3, the stopper portions 26 are formed on the side surfaces on both circumferential sides of the tooth portion 2, and the stopper portion 26 extends toward the other adjacent tooth portion 2, adjacent to the stator assembly The distance between the stops 26 of the two toothed portions 2 is the size of the slot, and the stop portion 26 can be used to stop the coil wound around the tooth portion 2, preventing the coil from accidentally slipping off the tooth portion 2.
  • the card slot 11 includes a first groove portion 12 located radially outward and a second groove portion 13 located radially inward, the circumferential width of the first groove portion 12 being greater than the second groove portion 13 Circumferential width, the circumferential width of the second groove portion 13 is larger than the circumferential width of the tooth portion 2, and the engaging portion 23 includes the first step portion 24 inserted into the first groove portion 12 and inserted The second step portion 25 of the second groove portion 13.
  • the first groove portion 12 and the second groove portion 13 are directly joined to each other, and the side walls on both sides of the card slot 11 are formed substantially in a stepped shape.
  • the engaging portion 23 is also formed in a stepped shape, and the cross-sectional shape of the engaging portion 23 and the card slot are formed.
  • the sectional shape of 11 is substantially uniform, so that the engaging portion 23 can be stably accommodated in the card slot 11 to prevent the engaging portion 23 from being loosened.
  • the yoke portion 1 and the first tooth segment 21 are formed by a plurality of first punching sheets in an axially laminated connection, and the second tooth segments 22 are formed by a plurality of second punching sheets being axially laminated and connected;
  • the second tooth segment 22 is glued to the first tooth segment 21 by glue, or one of the two end faces of the first tooth segment 21 and the second tooth segment 22 that are joined to each other is concave.
  • the groove is formed with a buckle, and the buckle is fitted in the groove.
  • the cross section perpendicular to the axial direction of the first punching piece is the same as the cross-sectional shape perpendicular to the axial direction of the yoke portion 1 and the first tooth segment 21, and the plurality of first punching sheets are laminated to form a combination of the yoke portion 1 and the first tooth segment 21.
  • the second tooth segment 22 can be formed by laminating a plurality of second punching sheets.
  • the second tooth segment 22 can be bonded to the first tooth segment 21 by glue, or can be connected by the buckle point and the groove, wherein the first tooth segment 21 and the second tooth segment 22 are engaged.
  • a groove (or a through hole) may be formed in the first punching piece, and each of the second punching pieces of the second tooth segment 22 is stamped to form a convex buckle point, so that convex surfaces are respectively formed on the two surfaces of the plurality of second punching pieces. And the recesses, each of the protrusions can be snapped into the recess of the other second punching piece to realize the connection of the second toothed section 22, and the buckle on the second punching piece connected to the first toothed section 21 is engaged In the groove, the connection of the second tooth segment 22 to the first tooth segment 21 is achieved, and the buckle point and the groove may be an equal number of multiple.
  • the stator portion is made by a powder metallurgy process.
  • the structure of the stator portion is relatively complicated, especially in the case where the size is relatively small, the stator portion is difficult to be formed by casting, and therefore, can be formed by a powder metallurgy process, specifically, by the stator portion
  • the shape-matched mold is filled with auxiliary materials such as metal powder and a small amount of binder, and the metal powder in the mold is sintered into a green body by a high-temperature high-pressure sintering process, and the shape of the green body and the stator portion are substantially the same.
  • the finished product can be finished by simple subsequent processing operations, saving process steps.
  • first tooth segment 21, the second tooth segment 22, and the yoke portion 1 have the same axial dimension, and the axial ends of the first tooth segment 21 and the yoke portion 1 are The axial ends are flush with each other, and the card slot 11 penetrates the yoke 1 in the axial direction.
  • the axially extending length of the card slot 11 coincides with the axial dimension of the second tooth segment 22, the snap portion 23 of the second tooth segment 22 is inserted into the card slot 11, and the axial ends of the second tooth segment 22 are The axial ends of the yoke portion 1 of one stator portion are kept flush.
  • the two stator portions have the same structure.
  • the two stator portions constituting one of the stator assemblies may have the same structure, wherein the structures of the plurality of tooth portions 2 are kept uniform, and the structures of the plurality of card slots 11 are also consistent, that is, for a specific type of stator
  • only one type of stator portion can be processed to form two stator portions with the second tooth segments 22 facing each other, and the tooth portions 2 are aligned with the card slots 11 so that the stators can be inserted into each other to form the stator.
  • Components which saves mold costs and reduces production costs.
  • the present invention also provides an electric machine in which the electric machine is mounted with the stator assembly described in the above scheme.
  • the coil portion 31 can be formed on the tooth portion 2 of the stator assembly, and the coil portion 31 can be formed to form an electromagnetic field.
  • the rotor assembly can be inserted into the rotor, and the rotor can form electromagnetic induction with the electromagnetic field.
  • the present invention provides a compressor in which the compressor is mounted with the motor described above.
  • the compressor may be a rotary compressor.

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Iron Core Of Rotating Electric Machines (AREA)

Abstract

一种定子组件、电机及压缩机，其中，所述定子组件包括两个定子部，所述定子部包括轭部（1）和齿部（2），所述轭部（1）上设有卡槽（11），所述齿部（2）包括第一齿段（21）和第二齿段（22），所述第二齿段（22）的径向外端设有与所述卡槽（11）对应的卡接部（23），两个所述轭部（1）轴向对齐接合，其中，所述卡接部（23）对应地插入另一个所述定子部的所述卡槽（11）中。通过上述技术方案，定子组件由两个定子部组合形成，两个定子部的齿部（2）周向交叉排列，每个定子部的相邻齿部（2）之间具有足够的空间，方便于线圈缠绕操作，提高了效率，并且定子部的轭部（1）一体成型，提高了定子部的整体强度。

Description

定子组件、电机及压缩机 技术领域
本发明涉及电机领域，具体地涉及定子组件、电机及压缩机。
背景技术
压缩机为制冷设备等的重要部件，其中安装有电机。电机的定子为核心部件，其中，定子包括环状的轭部和从轭部径向向内延伸的多个齿部，齿部用于缠绕线圈。
在手动或使用电气设备缠绕线圈时，相邻的两个齿部的端部之间的槽口尺寸对缠绕速度影响较大，一般地，槽口越大，越便于缠绕线圈。然而，槽口的尺寸对定子的电磁性能也具有较大影响，槽口过大将导致磁场谐波含量较大，因此，需要尽可能地减小槽口的尺寸。
目前，一些定子结构采用了拼装式结构，即将定子结构沿周向分解为多个部分，每个部分包括一个用于缠绕线圈的齿部，在齿部缠绕线圈后，将多个齿部拼接为定子。这样的结构强度相对较小，并且其组装过程提高了时间成本。
发明内容
本发明的目的是提供一种缠绕操作简单且结构稳定的定子组件。
为了实现上述目的，本发明一方面提供了一种定子组件，其中，所述定子组件包括两个定子部，所述定子部包括管状的轭部和连接于所述轭部的内周面并径向延伸的齿部，相邻的所述齿部之间的所述轭部的内周面上设有轴向延伸的卡槽，所述齿部包括轴向连接的第一齿段和第二齿段，所述第一齿段位于所述轭部中，所述第二齿段的径向外端设有与所述卡槽对 应的卡接部，两个所述轭部的内端端面彼此对齐并接合，其中，每个所述定子部的所述卡接部一一对应地插入另一个所述定子部的所述卡槽中。
优选地，所述定子组件包括多个导线，所述导线部分地缠绕于所述齿部形成线圈部，所述导线未缠绕于所述齿部的部分贴合在所述轭部外端端面上。
优选地，每个所述导线缠绕在其中一个所述定子部的两个所述齿部上形成两个所述线圈部，所述导线还包括连接在两个所述线圈部的第一端之间的相间连线、连接于其中一个所述线圈部的第二端的引出线以及连接于另一个所述线圈部的第二端的中性点连线，多个所述中性点连线共同连接形成为中性点，其中一个所述定子部上的所述引出线连接于另一个所述定子部上的所述引出线，所述相间连线、所述引出线以及所述中性点连线贴合于所述轭部的外端端面上。
优选地，每个所述定子部包括关于所述定子部中心对称的偶数个所述齿部，每个所述导线缠绕在其中一个所述定子部的关于中心轴线对称的两个所述齿部上。
优选地，在每个所述定子部中，任意两个相邻的所述齿部之间设有一个所述卡槽，并且任意两个相邻的所述卡槽之间设有一个所述齿部。
优选地，所述齿部的径向内端的周向侧面上设置有止挡部。
优选地，所述卡槽包括位于径向外侧的第一槽部和位于径向内侧的第二槽部，所述第一槽部的周向宽度大于所述第二槽部的周向宽度，所述第二槽部的周向宽度大于所述齿部的周向宽度，所述卡接部包括插入所述第一槽部的第一台阶部和插入所述第二槽部的第二台阶部。
优选地，所述轭部和所述第一齿段由多个第一冲片沿轴向层叠连接形成，所述第二齿段由多个第二冲片沿轴向层叠连接形成；所述第二齿段与所述第一齿段通过胶水粘接，或者，所述第一齿段和所述第二齿段彼此接合的两个端面中的一者形成有凹槽，另一者形成有扣点，所述扣点卡装在 所述凹槽中。
优选地，所述定子部通过粉末冶金工艺制成。
优选地，所述第一齿段、所述第二齿段以及所述轭部的轴向尺寸相同，并且所述第一齿段的轴向两端与所述轭部的轴向两端分别彼此平齐，所述卡槽沿轴向贯通所述轭部。
优选地，两个所述定子部的结构相同。
本发明第二方面提供了一种电机，其中，所述电机安装有以上方案所述的定子组件。
本发明第三方面提供了一种压缩机，其中，所述压缩机安装有以上方案所述的电机。
通过上述技术方案，定子组件由两个定子部组合形成，两个定子部的齿部周向交叉排列，每个定子部的相邻齿部之间具有足够的空间，方便于线圈缠绕操作，提高了效率，并且定子部的轭部可以一体成型，提高了定子部的整体强度。
附图说明
图1是根据本发明的实施方式的定子组件的结构示意图；
图2是根据本发明的实施方式的定子组件的爆炸图；
图3是根据本发明的实施方式的定子部的结构示意图；
图4为根据本发明的实施方式的定子部的沿轴向观察的结构示意图；
图5为根据本发明的实施方式的其中一个定子部的绕线方式；
图6为根据本发明的实施方式的另一个定子部的绕线方式；
图7为根据本发明的实施方式的缠绕于两个定子部的导线的连接方式。
附图标记说明
1 轭部      2 齿部
3  导线
11 卡槽              12 第一槽部
13 第二槽部
21 第一齿段          22 第二齿段
23 卡接部            24 第一台阶部
25 第二台阶部        26 止挡部
31 线圈部            32 相间连线
33 引出线            34 中性点连线
具体实施方式
以下结合附图对本发明的具体实施方式进行详细说明。应当理解的是，此处所描述的具体实施方式仅用于说明和解释本发明，并不用于限制本发明。
本发明提供了一种定子组件，其中，所述定子组件包括两个定子部，所述定子部包括管状的轭部1和连接于所述轭部1的内周面并径向延伸的齿部2，相邻的所述齿部2之间的所述轭部1的内周面上设有轴向延伸的卡槽11，所述齿部2包括轴向连接的第一齿段21和第二齿段22，所述第一齿段21位于所述轭部1中，所述第二齿段22的径向外端设有与所述卡槽11对应的卡接部23，两个所述轭部1的内端端面彼此对齐并接合，其中，每个所述定子部的所述卡接部23一一对应地插入另一个所述定子部的所述卡槽11中。
齿部2包括第一齿段21和第二齿段22，第一齿段21位于所在的定子部轭部1中，第二齿段22位于另一个定子部的轭部1中。其中，在每个所述定子部中，卡槽11设置在相邻的两个齿部2之间，可以与另一个定子部的第二齿段22上的卡接部23彼此卡接配合，使得两个定子部可以相对地固定，特别是可以避免两个定子部相对地旋转，并且可以避免两个定子部 彼此分离。在每个定子部中，可以在每两个齿部2之间均设置卡槽11，也可以仅在部分的齿部2之间设置卡槽11。
第二齿段22形成在轭部1沿轴向的同一侧，将一个所述定子部的多个第二齿段22沿轴向方向平移插入到另一个定子部的对应的卡槽11中，从而可以将两个定子部组合形成所述定子组件。
通过将两个所述定子部轴向连接组合，可以使得两个定子部各自的齿部2能够沿周向交叉排列，提高齿部2的排列紧密程度，减小两个齿部2之间的槽口尺寸，反过来说，在将两个定子部组合之前，由于相邻的齿部2之间没有插入另一个定子部的齿部2，相邻的齿部2之间的空间相对较大，可以使得线圈的缠绕操作更为方便，提高了生产加工效率，另一方面，两个定子部以轴向连接的方式组合，便于直接插接连接，并且每个定子部各自沿周向为一体式结构，具有更高的强度。
另外，所述定子组件包括多个导线3，所述导线3部分地缠绕于所述齿部2形成线圈部31，所述导线3未缠绕于所述齿部2的部分贴合在所述轭部1外端端面上。导线3部分地缠绕在齿部2上形成线圈部31，未缠绕的部分可以贴合在轭部1的外端端面上，也就是未与另一个定子部接合的端面上，在定子部的中心位置应尽量避免导线3通过，防止导线3与插入定子部中的转子干涉。每个导线3可以仅用于一个定子部，使得两个定子部相对较为独立，导线3的缠绕可以在两个定子部组合连接之前，降低缠绕难度。
具体地，每个所述导线3缠绕在其中一个所述定子部的两个所述齿部2上形成两个所述线圈部31，所述导线3还包括连接在两个所述线圈部31的第一端之间的相间连线32、连接于其中一个所述线圈部31的第二端的引出线33以及连接于另一个所述线圈部31的第二端的中性点连线34，多个所述中性点连线34共同连接形成为中性点，其中一个所述定子部上的所述引出线33连接于另一个所述定子部上的所述引出线33，所述相间连线32、 所述引出线33以及所述中性点连线34贴合于所述轭部1的外端端面上。如图5和图6所示，显示了导线3的缠绕方式，每个导线3包括两个线圈部31、相间连线32、引出线33以及中性点连线34，多个导线3分别通过中性点连线34连接到中性点(图5中O1以及图6中O2)，其中，未缠绕于齿部2的导线3包括相间连线32、引出线33以及中性点连线34，这些部分可以贴合于轭部1的外端端面上，减少对定子部中心空间的影响。图7显示了两个定子部之间的导线3的连线方式，分别来自两个定子部的两个导线3通过引出线33连接在一起，例如A1相连接于A2相形成A相，三个相A、B、C分别连接于三相电源。当然，每个导线3也可以缠绕于一个或多个齿部2，线圈的供电电源可以为二相或三相等。
进一步地，每个所述定子部包括关于所述定子部中心对称的偶数个所述齿部2，每个所述导线3缠绕在其中一个所述定子部的关于中心轴线对称的两个所述齿部2上。如图5和图6所示，每个导线3对应的两个齿部2彼此相对，两个齿部2的连线过中心轴线，特别地，在供电电源为三相的情况下，每个定子部可以具有3n(n为1，2，3……)对的齿部2。
其中，在每个所述定子部中，任意两个相邻的所述齿部2之间设有一个所述卡槽11，并且任意两个相邻的所述卡槽11之间设有一个所述齿部2。也就是说，如图2、图3和图4所示，齿部2与卡槽11交替地沿周向排列，在将两个定子部组合之间，每个定子部中，任意相邻的两个齿部2之间具有用于容纳另一个定子部的齿部2的空间，任意相邻的两个齿部2之间都具有较大的尺寸，使得对这两个齿部2的线圈缠绕操作更为方便。当然，也可以仅在一些相邻的齿部2之间设置卡槽11，另一些相邻的齿部2之间不设置卡槽11而距离更小。
另外，所述齿部2的径向内端的周向侧面上设置有止挡部26。如图1和图3所示，止挡部26形成在齿部2周向两侧的侧面上，止挡部26朝向另一个相邻的齿部2延伸，在所述定子组件中，相邻的两个齿部2的止挡 部26之间的距离即为槽口尺寸，止挡部26可以用于止挡缠绕在齿部2上的线圈，防止线圈意外地从齿部2上滑落。
具体地，所述卡槽11包括位于径向外侧的第一槽部12和位于径向内侧的第二槽部13，所述第一槽部12的周向宽度大于所述第二槽部13的周向宽度，所述第二槽部13的周向宽度大于所述齿部2的周向宽度，所述卡接部23包括插入所述第一槽部12的第一台阶部24和插入所述第二槽部13的第二台阶部25。第一槽部12和第二槽部13直接接合，卡槽11两侧的侧壁大致形成为台阶形状，相应地卡接部23也形成为台阶形状，卡接部23的截面形状与卡槽11的截面形状基本一致，使得卡接部23可以稳定地容纳在卡槽11中而避免卡接部23松动。
其中，所述轭部1和所述第一齿段21由多个第一冲片沿轴向层叠连接形成，所述第二齿段22由多个第二冲片沿轴向层叠连接形成；所述第二齿段22与所述第一齿段21通过胶水粘接，或者，所述第一齿段21和所述第二齿段22彼此接合的两个端面中的一者形成有凹槽，另一者形成有扣点，所述扣点卡装在所述凹槽中。所述第一冲片垂直于轴向的截面与轭部1和第一齿段21垂直于轴向的截面形状相同，多个第一冲片层叠形成轭部1与第一齿段21的组合体，第二齿段22可以通过多个第二冲片层叠形成。其中，第二齿段22可以通过胶水粘接到第一齿段21上，也可以通过扣点与凹槽彼此配合的方式而连接，其中，第一齿段21与第二齿段22接合的第一冲片上可以形成凹槽(或者是通孔)，第二齿段22的每个第二冲片上冲压形成凸起的扣点，从而多个第二冲片的两个表面上分别形成凸起和凹陷，每个凸起可以卡接在另一个第二冲片的凹陷中，实现第二齿段22的连接，同时与第一齿段21相连的第二冲片上的扣点卡接在所述凹槽中，实现第二齿段22与第一齿段21的连接，所述扣点和所述凹槽可以为同等数量的多个。
或者，所述定子部通过粉末冶金工艺制成。所述定子部的结构相对较 为复杂，特别是尺寸相对较小的情况下，所述定子部难以通过铸造成型，因此，可以通过粉末冶金的工艺制成，具体地，通过在与所述定子部的形状匹配的模具中填满金属粉末及少量粘合剂等辅助材料，通过高温高压的烧结过程，使得模具中的金属粉末烧结成为坯体，所述坯体与所述定子部的形状基本一致，通过简单的后续加工操作即可制成成品，节省工艺步骤。
具体地，所述第一齿段21、所述第二齿段22以及所述轭部1的轴向尺寸相同，并且所述第一齿段21的轴向两端与所述轭部1的轴向两端分别彼此平齐，所述卡槽11沿轴向贯通所述轭部1。卡槽11沿轴向的延伸长度与第二齿段22的轴向尺寸一致，第二齿段22的卡接部23插入卡槽11中，并且第二齿段22的轴向两端与另一个定子部的轭部1的轴向两端保持平齐。
优选地，两个所述定子部的结构相同。组成一个所述定子组件的两个定子部可以为相同结构，其中，多个齿部2的结构保持一致，多个卡槽11的结构也保持一致，也就是说，对于某个特定型号的定子组件来说，仅加工生产一种型号的定子部即可两个定子部以第二齿段22彼此相对的方式，并且以齿部2对齐于卡槽11，从而可以彼此插接形成所述定子组件，这节约了模具成本，降低生产成本。
另外，本发明还提供了一种电机，其中，所述电机安装有以上方案所述的定子组件。其中，所述定子组件的齿部2上可以缠绕导线3后形成线圈部31，线圈部31通电后形成电磁场，定子组件内可以插入转子，转子可以与电磁场形成电磁感应。
另外，本发明还提供了一种压缩机，其中，所述压缩机安装有以上所述的电机。所述压缩机可以为旋转式压缩机。
以上结合附图详细描述了本发明的优选实施方式，但是，本发明并不限于此。在本发明的技术构思范围内，可以对本发明的技术方案进行多种简单变型，包括各个具体技术特征以任何合适的方式进行组合，为了避免 不必要的重复，本发明对各种可能的组合方式不再另行说明。但这些简单变型和组合同样应当视为本发明所公开的内容，均属于本发明的保护范围。

Claims (13)

  1. 一种定子组件，其特征在于，所述定子组件包括两个定子部，所述定子部包括管状的轭部(1)和连接于所述轭部(1)的内周面并径向延伸的齿部(2)，相邻的所述齿部(2)之间的所述轭部(1)的内周面上设有轴向延伸的卡槽(11)，所述齿部(2)包括轴向连接的第一齿段(21)和第二齿段(22)，所述第一齿段(21)位于所述轭部(1)中，所述第二齿段(22)的径向外端设有与所述卡槽(11)对应的卡接部(23)，两个所述轭部(1)的内端端面彼此对齐并接合，其中，每个所述定子部的所述卡接部(23)一一对应地插入另一个所述定子部的所述卡槽(11)中。
  2. 根据权利要求1所述的定子组件，其特征在于，所述定子组件包括多个导线(3)，所述导线(3)部分地缠绕于所述齿部(2)形成线圈部(31)，所述导线(3)未缠绕于所述齿部(2)的部分贴合在所述轭部(1)外端端面上。
  3. 根据权利要求2所述的定子组件，其特征在于，每个所述导线(3)缠绕在其中一个所述定子部的两个所述齿部(2)上形成两个所述线圈部(31)，所述导线(3)还包括连接在两个所述线圈部(31)的第一端之间的相间连线(32)、连接于其中一个所述线圈部(31)的第二端的引出线(33)以及连接于另一个所述线圈部(31)的第二端的中性点连线(34)，多个所述中性点连线(34)共同连接形成为中性点，其中一个所述定子部上的所述引出线(33)连接于另一个所述定子部上的所述引出线(33)，所述相间连线(32)、所述引出线(33)以及所述中性点连线(34)贴合于所述轭部(1)的外端端面上。
  4. 根据权利要求3所述的定子组件，其特征在于，每个所述定子部包括关于所述定子部中心对称的偶数个所述齿部(2)，每个所述导线(3)缠绕在其中一个所述定子部的关于中心轴线对称的两个所述齿部(2)上。
  5. 根据权利要求4所述的定子组件，其特征在于，在每个所述定子部中，任意两个相邻的所述齿部(2)之间设有一个所述卡槽(11)，并且任意两个相邻的所述卡槽(11)之间设有一个所述齿部(2)。
  6. 根据权利要求1所述的定子组件，其特征在于，所述齿部(2)的径向内端的周向侧面上设置有止挡部(26)。
  7. 根据权利要求1所述的定子组件，其特征在于，所述卡槽(11)包括位于径向外侧的第一槽部(12)和位于径向内侧的第二槽部(13)，所述第一槽部(12)的周向宽度大于所述第二槽部(13)的周向宽度，所述第二槽部(13)的周向宽度大于所述齿部(2)的周向宽度，所述卡接部(23)包括插入所述第一槽部(12)的第一台阶部(24)和插入所述第二槽部(13)的第二台阶部(25)。
  8. 根据权利要求1所述的定子组件，其特征在于，所述轭部(1)和所述第一齿段(21)由多个第一冲片沿轴向层叠连接形成，所述第二齿段(22)由多个第二冲片沿轴向层叠连接形成；
    所述第二齿段(22)与所述第一齿段(21)通过胶水粘接，或者，所述第一齿段(21)和所述第二齿段(22)彼此接合的两个端面中的一者形成有凹槽，另一者形成有扣点，所述扣点卡装在所述凹槽中。
  9. 根据权利要求1所述的定子组件，其特征在于，所述定子部通过粉 末冶金工艺制成。
  10. 根据权利要求1所述的定子组件，其特征在于，所述第一齿段(21)、所述第二齿段(22)以及所述轭部(1)的轴向尺寸相同，并且所述第一齿段(21)的轴向两端与所述轭部(1)的轴向两端分别彼此平齐，所述卡槽(11)沿轴向贯通所述轭部(1)。
  11. 根据权利要求1所述的定子组件，其特征在于，两个所述定子部的结构相同。
  12. 一种电机，其特征在于，所述电机安装有权利要求1-11中任意一项所述的定子组件。
  13. 一种压缩机，其特征在于，所述压缩机安装有权利要求12所述的电机。
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CN107482802A (zh) * 2017-08-30 2017-12-15 广东威灵电机制造有限公司 定子组件、电机及压缩机
CN107546875A (zh) * 2017-08-30 2018-01-05 广东威灵电机制造有限公司 定子组件、电机及压缩机

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