WO2022110291A1 - 电机电枢、电机及电机电枢的绕线方法 - Google Patents

电机电枢、电机及电机电枢的绕线方法 Download PDF

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Publication number
WO2022110291A1
WO2022110291A1 PCT/CN2020/134679 CN2020134679W WO2022110291A1 WO 2022110291 A1 WO2022110291 A1 WO 2022110291A1 CN 2020134679 W CN2020134679 W CN 2020134679W WO 2022110291 A1 WO2022110291 A1 WO 2022110291A1
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WIPO (PCT)
Prior art keywords
winding
spanning
line segment
coil
tooth
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Ceased
Application number
PCT/CN2020/134679
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English (en)
French (fr)
Inventor
许德涛
张奇
杨森森
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
AAC Technologies Holdings Shenzhen Co Ltd
AAC Microtech Changzhou Co Ltd
Original Assignee
AAC Acoustic Technologies Shenzhen Co Ltd
AAC Microtech Changzhou Co Ltd
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Filing date
Publication date
Application filed by AAC Acoustic Technologies Shenzhen Co Ltd, AAC Microtech Changzhou Co Ltd filed Critical AAC Acoustic Technologies Shenzhen Co Ltd
Publication of WO2022110291A1 publication Critical patent/WO2022110291A1/zh
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K3/00—Details of windings
    • H02K3/04—Windings characterised by the conductor shape, form or construction, e.g. with bar conductors
    • H02K3/28—Layout of windings or of connections between windings
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K15/00—Processes or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines
    • H02K15/08—Forming windings by laying conductors into or around core parts
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K3/00—Details of windings
    • H02K3/46—Fastening of windings on the stator or rotor structure
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K3/00—Details of windings
    • H02K3/46—Fastening of windings on the stator or rotor structure
    • H02K3/50—Fastening of winding heads, equalising connectors, or connections thereto

Definitions

  • the present application relates to the technical field of power equipment, and in particular, to a motor armature, a motor and a method for winding the motor armature.
  • the motor includes a motor stator and a motor rotor, wherein both the motor stator and the motor rotor include an iron core and a winding, and the iron core usually includes a yoke with a hollow inner hole and teeth along the outer surface or inner surface of the yoke. wound around the teeth.
  • the existing motor stator and motor rotor will omit the terminals provided on the end face of the yoke to reduce the height of the motor stator and motor rotor.
  • the bridge wire between adjacent coils is directly placed on the end face of the yoke, which will cause the bridge wire to be loose, and the bridge wire will occupy the end face area, which is harmful to the motor.
  • the process positioning of the stator is inconvenient.
  • One of the objectives of the present application is to provide a motor armature to solve the technical problems that the bridge wires of the existing iron core windings are easy to loosen and completely occupy the end face area of the yoke.
  • a motor armature includes an iron core and a winding, the iron core includes a yoke portion and a tooth portion arranged around the yoke portion, and the winding includes at least two coils and a bridge line connecting two adjacent coils;
  • the tooth portion includes at least two winding teeth for winding the wire to form the coil and a spanning tooth group arranged between two adjacent winding teeth for winding the bridge wire to form the bridge wire,
  • the adjacent winding teeth and the spanning tooth group are spaced apart, and the spanning tooth group includes at least one spanning tooth;
  • the bridge line includes a first spanning line segment, a second spanning line segment and a third spanning line segment that are connected in sequence, the iron core has a first end face and a second end face that are oppositely arranged, and the second spanning line segment is along the first span.
  • Two end surfaces extend on at least one of the spanning teeth, the first spanning line segment extends obliquely from one end of the second spanning line segment toward the first end surface and is connected to one of the coils, and the third spanning line segment extends from one of the coils.
  • the other end of the second spanning line extends obliquely toward the first end surface and is connected to the other coil, and the first spanning line segment and the third spanning line segment are about the mid-perpendicular line of the second spanning line segment Symmetrical settings.
  • each of the coils includes an incoming wire end and an outgoing wire end, and the incoming wire end and the outgoing wire end are both arranged at one end of the coil close to the yoke; One of the outgoing wire ends is arranged at one end of the coil close to the yoke.
  • the winding also includes a first lead and a second lead, the first lead is connected to the incoming end of the first coil of the winding, and the second lead is connected to the last of the winding.
  • the outlet end of the coil, one of the first span segment and the third span segment of the bridge line is connected to the outlet end of one of the windings, and the other is connected to the coil. adjacent to the incoming end of the coil.
  • the yoke is an annular structure with a hollow inner hole
  • the yoke includes an inner surface enclosing the hollow inner hole and an outer surface facing away from the inner surface, and the teeth are along the The circumferential direction of the yoke is protruded on the outer surface or the inner surface.
  • the tooth portion includes a tooth body and a tooth head disposed at one end of the tooth body away from the yoke portion, and the coil is wound on the tooth body; the tooth body is formed from the inside of the yoke portion.
  • the surface extends toward the center of the hollow inner hole or extends from the outer surface of the yoke in a direction away from the hollow inner hole.
  • the present application also provides a motor, comprising a motor rotor and a motor stator for driving the motor rotor to rotate, and at least one of the motor rotor and the motor stator adopts the above-mentioned motor armature.
  • the present application also provides a method for winding the above-mentioned motor armature, comprising the following steps:
  • Step S1 winding one of the coils on one of the winding teeth to form one of the windings
  • Step S2 winding the bridge wire on the spanning tooth group
  • Step S3 winding the adjacent winding teeth to form another said coil in the winding.
  • step S1 also includes forming a first lead at the incoming wire end of the coil
  • step S3 The following steps are also included after the step S3:
  • Step S4 repeating the step S2 and the step S3 at least once in sequence
  • Step S5 After the last coil of the winding is formed in the step S4, a second lead is formed at the outlet end of the last coil.
  • step S2 includes the following steps:
  • Step S201 extending obliquely from an outlet end of one of the coils toward the spanning tooth group to form the first spanning line segment;
  • Step S202 extending from the first spanning line segment along the second end face on the spanning tooth group to form the second spanning line segment;
  • Step S203 extending obliquely from the second spanning line segment toward the first end face and connecting with the incoming end of another coil to form the third spanning line segment.
  • the coil is wound from the end of the winding tooth close to the yoke, and after the coil is wound, the outlet end is removed from the winding. One end of the teeth close to the yoke is drawn out.
  • the beneficial effect of the present application is that: by setting the bridge line as the first spanning line segment, the second spanning line segment and the third spanning line segment connected in sequence, the second spanning line segment extends along the second end face of the iron core, and the first spanning line segment extends from One end of the second spanning line extends obliquely toward the first end face of the iron core and is connected to one coil, and the third spanning line extends obliquely from the other end of the second spanning line segment toward the first end face of the iron core and is connected to the other coil.
  • a spanning line segment and a third spanning line segment are symmetrically arranged with respect to the mid-perpendicular line of the second spanning line segment, so that the bridging line is stretched between two adjacent coils, so that the bridging line is effectively wound on the spanning tooth group , strengthen the stability of the bridge line, to avoid the bridge line being too long to move around and cause loosening.
  • the bridge wire is wound on the spanning teeth, and is no longer integrally arranged on the end face of the yoke, which frees up this area to a certain extent, which is conducive to the subsequent process positioning and support, and simplifies the tooling. Therefore, the motor armature provided by the present application can not only stabilize the bridge wire, but also release the end face area of the yoke to a certain extent, which is beneficial to provide process positioning, support, etc., and can simplify tooling.
  • FIG. 1 is a schematic structural diagram of a motor armature provided by an embodiment of the present application.
  • Fig. 2 is the sectional view of line A-A shown in Fig. 1;
  • FIG. 3 is a schematic structural diagram of an iron core provided by an embodiment of the present application.
  • FIG. 4 is a schematic structural diagram of a winding provided in an embodiment of the present application.
  • motor armature 1, iron core; 11, yoke; 111, hollow inner hole; 112, inner surface; 113, outer surface; 12, tooth; 121, winding tooth; 122, spanning tooth Group; 1221, spanning tooth; 123, tooth body; 124, tooth head; 13, first end face; 14, second end face; 2, winding; 21, coil; 211, incoming wire end; 212, outgoing wire end; 22, 221, the first spanning line segment; 222, the second spanning line segment; 223, the third spanning line segment; 23, the first lead line; 24, the second lead line.
  • the present application provides a motor armature 100 , which includes an iron core 1 and a winding 2 , the iron core 1 includes a yoke 11 and a tooth 12 disposed around the yoke 11 , and the winding 2 includes at least two The coil 21 and the bridge wire 22 connecting the two adjacent coils 21; the tooth portion 12 includes at least two winding teeth 121 for winding wires to form the coil 21, and is arranged between two adjacent winding teeth 121 to The spanning tooth group 122 used for winding the bridge wire 22 is arranged at intervals between the adjacent winding teeth 121 and the spanning tooth group 122.
  • the spanning tooth group 122 includes at least one spanning tooth 1221;
  • the first spanning line segment 221, the second spanning line segment 222 and the third spanning line segment 223, the iron core 1 has a first end face 13 and a second end face 14 arranged oppositely, and the second spanning line segment 222 extends along the second end face 14 to at least one
  • the first spanning line segment 221 extends obliquely from one end of the second spanning line segment 222 toward the first end surface 13 and is connected to a coil 21
  • the third spanning line segment 223 extends from the other end of the second spanning line segment 222 toward the first end surface.
  • the first spanning line segment 221 and the third spanning line segment 223 are symmetrically arranged with respect to the mid-perpendicular line of the second spanning line segment 222 .
  • There is a spanning tooth group 122 between two adjacent winding teeth 121 the coil 21 is wound on the winding tooth 121, the bridge wire 22 is wound on the spanning tooth group 122, and the bridge wire 22 is no longer It is integrally arranged on the end face of the yoke portion 11, but is further fixed by being wound around the spanning tooth group 122, thus enhancing the stability of the bridge wire 22 and avoiding the loosening of the bridge wire 22 due to excessive movement.
  • the bridge wire 22 is wound on the spanning tooth group 122, it effectively reduces the occupation of the end face area of the yoke 11 (that is, the common area of the yoke 11), so that this area can be released to a certain extent, so that this area can be used in subsequent processing, etc. It can be used in other processes, so this arrangement is beneficial to provide process positioning, support, etc., and simplifies the tooling.
  • the second cross wire segment 222 extends along the second end face 14 of the iron core 1
  • the first spanning line segment 221 extends obliquely from one end of the second spanning line segment 222 toward the first end face 13 of the iron core 1 and is connected to a coil 21
  • the third spanning line segment 223 extends from the other end of the second spanning line segment 222 toward the iron core 1
  • the first end surface 13 of the coil extends obliquely and is connected to the other coil 21.
  • the first cross-wire segment 221 and the third cross-wire segment 223 are symmetrically arranged with respect to the mid-perpendicular line of the second cross-wire segment 222, so that the cross-bridge wire 22 is taut in the adjacent between the two coils 21, so that the bridge wire 22 is effectively wound on the spanning tooth group 122, and the loosening of the bridge wire 22 is avoided. Therefore, the motor armature 100 provided by the embodiment of the present application can not only stabilize the bridge wire 22 but also release the end face area of the yoke 11 to a certain extent without terminals, which is beneficial to provide process positioning, support, etc., and can simplify the tooling .
  • the second spanning line segment 222 extends along the first end surface 13 of the iron core 1
  • the first spanning line segment 221 extends obliquely from one end of the second spanning line segment 222 toward the second end surface 14 of the iron core 1 to
  • the third spanning wire segment 223 may extend obliquely from the other end of the second spanning wire segment 222 toward the second end face 14 of the iron core 1 to the other coil 21 .
  • spanning tooth set 122 includes at least two spanning teeth 1221 .
  • each spanning tooth group 122 includes two spanning teeth 1221 , and three coils form a group of windings 2 to form a winding 2 of one of the three-phase electricity.
  • each spanning tooth group 122 may also include three spanning teeth 1221 or four spanning teeth 1221 or five spanning teeth 1221, and the number of spanning teeth 1221 provided on the spanning tooth group 122 is not limited by this The limitation of the embodiment may be set according to the actual situation.
  • each coil 21 includes an incoming wire end 211 and an outgoing wire end 212 .
  • the bridge wire 22 is disposed close to the yoke 11 , so that the bridge wire 22 will not interfere with the coil winding of the cross teeth 1221 later, which is conducive to the rapid completion of the coil 21 winding process.
  • one of the incoming wire end 211 and the outgoing wire end 212 is provided at the end of the coil 21 close to the yoke 11 , and the other is not provided at the end of the coil 21 close to the yoke 11 . OK.
  • the winding 2 further includes a first lead 23 and a second lead 24 , the first lead 23 is connected to the incoming wire end 211 of the first coil 21 of the winding 2 , and the second lead 24 is connected to the outgoing wire of the last coil 21 of the winding 2 Terminal 212, one of the first cross line segment 221 and the third cross line segment 223 of the bridge line 22 is connected to the outgoing line end 212 of one coil in the winding 2, and the other is connected to the incoming line end 211 of the adjacent coil 21 in the winding 2 .
  • the first spanning line 221 is connected to the outgoing end 212 of the adjacent coil 21
  • the third spanning line 223 is connected to the incoming end 211 of the adjacent coil 21 .
  • the yoke 11 is an annular structure with a hollow inner hole 111 , and the yoke 11 includes an inner surface 112 surrounding the hollow inner hole 111 and an outer surface 113 facing away from the inner surface 112 ,
  • the tooth portion 12 is protruded from the outer surface 113 along the circumferential direction of the yoke portion 11 . It can be understood that the tooth portion 12 may also be protruded from the inner surface 112 along the circumferential direction of the yoke portion 11 .
  • the tooth portion 12 includes a tooth body 123 and a tooth head 124 disposed at one end of the tooth body 123 away from the yoke portion 11 .
  • the coil 21 is wound on the tooth body 123 ; the tooth body 123 faces the hollow interior from the inner surface 112 of the yoke portion 11 .
  • the center of the hole 111 is extended or extended from the outer surface 113 of the yoke 11 in a direction away from the hollow inner hole 111 .
  • the provision of the tooth head 124 can be used to prevent the coil 21 from falling off the tooth body 123 .
  • Embodiments of the present application further provide a motor (not shown in the figure), including a motor rotor (not shown in the figure) and a motor stator (not shown in the figure) for driving the motor rotor to rotate, at least one of the motor rotor and the motor stator adopts The motor armature 100 described above.
  • the motor stator adopts the above-mentioned motor armature 100 .
  • the embodiment of the present application also provides a method for winding the above-mentioned motor armature, comprising the following steps:
  • Step S1 winding a coil 21 in the winding 2 on a winding tooth 121;
  • Step S2 winding the bridge wire 22 on the spanning tooth group 122;
  • step S3 another coil 21 in the winding 2 is formed by winding on the adjacent winding teeth 121 .
  • the bridge wire 22 By winding the bridge wire 22 on the spanning tooth group 122, the bridge wire 22 is no longer integrally disposed on the end face of the yoke 11, but is further fixed by the spanning tooth group 122, thus strengthening the adjacent two
  • the stability of the bridge wire 22 between the coils 21 prevents the bridge wire 22 from moving around due to being too long.
  • the end face area of the yoke 11 (that is, the common area of the yoke 11 ) is occupied, thereby releasing the area, so that the area can be used in other processes such as subsequent processing, which is beneficial to provide process positioning, support, etc., and can simplify tooling.
  • the winding method of the motor armature provided by the embodiment of the present application can not only stabilize the bridge wire 22 without terminals, but also release the end face area of the yoke 11 to a certain extent, which is beneficial to provide process positioning, support, etc., Tooling can be simplified.
  • step S1 further includes forming a first lead 23 at the incoming wire end 211 of the coil 21; after step S3, it further includes the following steps: step S4: repeating step S2 and step S3 at least once in sequence; step S5: in step S4 After the last coil 21 of the winding 2 is formed, a second lead 24 is formed at the outlet end 212 of the last coil 21 .
  • step S4 may be performed multiple times.
  • step S2 includes the following steps:
  • Step S201 extending obliquely from the outlet end 212 of one coil 21 toward the spanning tooth group 122 to form a first spanning line segment 221 ;
  • Step S202 extending from the first spanning line segment 221 along the second end face 14 on the spanning tooth group 122 to form a second spanning line segment 222;
  • Step S203 extending obliquely from the second cross-wire segment 222 toward the first end face 13 and connecting with the incoming wire end 211 of the other coil 21 to form a third cross-wire segment 223 .
  • the coil 21 is wound from the end of the winding tooth 121 close to the yoke 11.
  • the outlet end 212 is wound from the end of the winding tooth 121 close to the yoke 11. lead out at one end.
  • the bridge wire 22 can be located at one end of the spanning tooth group 122 close to the yoke 11, so that when the coil is wound on the spanning tooth 1221 subsequently, the bridge wire 22 will not interfere with it. It is beneficial to quickly complete the coil winding process.

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Windings For Motors And Generators (AREA)

Abstract

一种电机电枢（100）、一种电机及电机电枢（100）的绕线方法。电机电枢（100）包括铁芯（1）和绕组（2），铁芯（1）包括轭部（11）和齿部（12），绕组（2）包括线圈（21）和过桥线（22）；齿部（12）包括至少两个绕线齿（121）和一个跨越齿组（122），跨越齿组（122）包括跨越齿（1221）；过桥线（22）包括依次连接的第一跨线段（221）、第二跨线段（222）和第三跨线段（223），铁芯（1）具有第一端面（13）和第二端面（14），第二跨线段（222）沿第二端面（14）延伸于至少一个跨越齿（1221）上，第一跨线段（221）从第二跨线段（222）的一端朝向第一端面（13）倾斜延伸并连接于一个线圈（21），第三跨线段（223）从第二跨线段（222）的另一端朝向第一端面（13）倾斜延伸并连接于另一个线圈（21），第一跨线段（221）和第三跨线段（223）关于第二跨线段（222）的中垂线对称设置。该电机电枢（100）既能稳固过桥线（22），又能释放轭部（11）的端面区域，有利于提供工艺定位、支撑，可简化工装。

Description

电机电枢、电机及电机电枢的绕线方法 技术领域
本申请涉及电力设备技术领域，尤其涉及一种电机电枢、一种电机以及电机电枢的绕线方法。
 背景技术
电机包括电机定子和电机转子，其中电机定子和电机转子均包括铁芯与绕组，铁芯通常包括具有中空内孔的轭部以及沿轭部的外表面或内表面周向设置的齿部，绕组绕制在齿部上。
随着各种电子产品的轻薄化发展，现有的电机定子和电机转子会省去设于轭部端面上的端子以降低电机定子和电机转子的高度，所以，目前在对电机定子或电机转子的绕组进行绕线时，因为没有端子，相邻线圈之间的过桥线被直接放置在轭部的端面，这种方式会导致过桥线松散，而且过桥线会占用端面区域，对电机定子的工艺定位等造成不便。
因此，需要提供一种在无端子的情况下可以防止过桥线松散且尽量不占用端面区域的绕组的绕线方法。
 技术问题
本申请的目的之一在于提供一种电机电枢，以解决现有的铁芯绕组的过桥线易松散以及完全占用轭部端面区域的技术问题。
 技术解决方案
本申请的目的之一提供的技术方案如下：一种电机电枢，包括铁芯和绕组，所述铁芯包括轭部和环绕所述轭部设置的齿部，所述绕组包括至少两个线圈和连接相邻两个所述线圈的过桥线；
所述齿部包括至少两个用于绕制导线形成所述线圈的绕线齿和设于相邻两所述绕线齿之间以用于绕制形成所述过桥线的跨越齿组，相邻之所述绕线齿与所述跨越齿组之间间隔设置，所述跨越齿组包括至少一个跨越齿；
所述过桥线包括依次连接的第一跨线段、第二跨线段和第三跨线段，所述铁芯具有相对设置的第一端面和第二端面，所述第二跨线段沿所述第二端面延伸于至少一个所述跨越齿上，所述第一跨线段从所述第二跨线段的一端朝向所述第一端面倾斜延伸并连接于一个所述线圈，所述第三跨线段从所述第二跨线段的另一端朝向所述第一端面倾斜延伸并连接于另一个所述线圈，所述第一跨线段和所述第三跨线段关于所述第二跨线段的中垂线对称设置。
进一步地，每一所述线圈包括进线端和出线端，所述进线端和所述出线端均设于所述线圈之靠近所述轭部的一端；或者，所述进线端和所述出线端中的一者设于所述线圈之靠近所述轭部的一端。
进一步地，所述绕组还包括第一引线和第二引线，所述第一引线连接所述绕组之第一个所述线圈的进线端，所述第二引线连接所述绕组之最后一个所述线圈的出线端，所述过桥线的所述第一跨线段和所述第三跨线段中的一个连接所述绕组中的一个所述线圈的出线端，另一个则连接所述绕组中相邻所述线圈的进线端。
进一步地，所述轭部为具有中空内孔的圆环状结构，所述轭部包括围合形成所述中空内孔的内表面和背对所述内表面的外表面，所述齿部沿所述轭部的周向凸设于所述外表面或所述内表面。
进一步地，所述齿部包括齿本体和设置于所述齿本体远离所述轭部一端的齿头，所述线圈绕设于所述齿本体上；所述齿本体自所述轭部的内表面朝向所述中空内孔的中心延伸设置或自所述轭部的外表面朝远离所述中空内孔的方向延伸设置。
本申请还提供一种电机，包括电机转子和用于驱动所述电机转子转动的电机定子，所述电机转子和所述电机定子中的至少一者采用上述的电机电枢。
本申请还提供一种上述的电机电枢的绕线方法，包括以下步骤：
步骤S1，在一个所述绕线齿上绕制形成所述绕组中的一个所述线圈；
步骤S2，在所述跨越齿组上绕制形成所述过桥线；
步骤S3，在相邻所述绕线齿上绕制形成所述绕组中的另一个所述线圈。
进一步地，步骤S1还包括在所述线圈的进线端形成第一引线；
所述步骤S3之后还包括以下步骤：
步骤S4：至少依次重复进行一次所述步骤S2和所述步骤S3；
步骤S5：在所述步骤S4中形成所述绕组的最后一个线圈后，在最后一个线圈的出线端形成第二引线。
进一步地，所述步骤S2包括如下步骤：
步骤S201：从一个所述线圈的出线端朝向所述跨越齿组倾斜延伸形成所述第一跨线段；
步骤S202：从所述第一跨线段沿所述第二端面在所述跨越齿组上延伸形成所述第二跨线段；
步骤S203：从所述第二跨线段朝向第一端面倾斜延伸并与另一个线圈的进线端连接形成所述第三跨线段。
进一步地，在所述步骤S1以及步骤S3中，从所述绕线齿之靠近所述轭部的一端开始绕制线圈，所述线圈绕制完成之后，将所述出线端从所述绕线齿之靠近所述轭部的一端引出。
 有益效果
本申请的有益效果在于：通过将过桥线设为依次连接的第一跨线段、第二跨线段和第三跨线段，第二跨线段沿铁芯的第二端面延伸，第一跨线段从第二跨线段的一端朝向铁芯的第一端面倾斜延伸并连接于一个线圈，第三跨线段从第二跨线段的另一端朝向铁芯的第一端面倾斜延伸并连接于另一个线圈，第一跨线段和第三跨线段关于第二跨线段的中垂线对称设置，从而使过桥线绷紧在相邻的两个线圈之间，使得过桥线有效地绕制在跨越齿组上，加强了过桥线的稳固性，避免过桥线因过长到处移动造成松散。另外，过桥线绕制于跨越齿上，不再整体设置在轭部的端面，一定程度上释放了该区域，有利于后续提供工艺定位、支撑等，简化了工装。因此，本申请提供的电机电枢在无端子的情况下既可以稳固过桥线，又一定程度的释放轭部的端面区域，有利于提供工艺定位、支撑等，可以简化工装。
 附图说明
图1为本申请实施例提供的电机电枢的结构示意图；
图2为图1所示A-A线的剖视图；
图3为本申请实施例提供的铁芯的结构示意图；
图4为本申请实施例提供的绕组的结构示意图。
图中：100、电机电枢；1、铁芯；11、轭部；111、中空内孔；112、内表面；113、外表面；12、齿部；121、绕线齿；122、跨越齿组；1221、跨越齿；123、齿本体；124、齿头；13、第一端面；14、第二端面；2、绕组；21、线圈；211、进线端；212、出线端；22、过桥线；221、第一跨线段；222、第二跨线段；223、第三跨线段；23、第一引线；24、第二引线。
本申请的实施方式
下面结合图1至图4对本申请作详细描述。
请参阅图1至图4，本申请提供一种电机电枢100，包括铁芯1和绕组2，铁芯1包括轭部11和环绕轭部11设置的齿部12，绕组2包括至少两个线圈21和连接相邻两个线圈21的过桥线22；齿部12包括至少两个用于绕制导线形成线圈21的绕线齿121和设于相邻两个绕线齿121之间以用于绕制形成过桥线22的跨越齿组122，相邻之绕线齿121与跨越齿组122之间间隔设置，跨越齿组122包括至少一个跨越齿1221；过桥线22包括依次连接的第一跨线段221、第二跨线段222和第三跨线段223，铁芯1具有相对设置的第一端面13和第二端面14，第二跨线段222沿第二端面14延伸于至少一个跨越齿1221上，第一跨线段221从第二跨线段222的一端朝向第一端面13倾斜延伸并连接于一个线圈21，第三跨线段223从第二跨线段222的另一端朝向第一端面13倾斜延伸并连接于另一个线圈21，第一跨线段221和第三跨线段223关于第二跨线段222的中垂线对称设置。两个相邻的绕线齿121之间设有一个跨越齿组122，将线圈21绕制于绕线齿121上，过桥线22绕制于跨越齿组122上，过桥线22不再整体设置在轭部11的端面，而是通过绕制于跨越齿组122做了进一步的固定，因此加强了过桥线22的稳固性，避免过桥线22因过长到处移动造成松散；同时，过桥线22因绕制在跨越齿组122上，有效降低占用轭部11的端面区域（即轭部11的公共区域），从而可一定程度的释放该区域，使该区域在后续加工等其他工艺过程中可以被使用，所以该种设置方式有利于提供工艺定位、支撑等，简化了工装。
在本实施例中，通过将过桥线22设为依次连接的第一跨线段221、第二跨线段222和第三跨线段223，第二跨线段222沿铁芯1的第二端面14延伸，第一跨线段221从第二跨线段222的一端朝向铁芯1的第一端面13倾斜延伸并连接于一个线圈21，第三跨线段223从第二跨线段222的另一端朝向铁芯1的第一端面13倾斜延伸并连接于另一个线圈21，第一跨线段221和第三跨线段223关于第二跨线段222的中垂线对称设置，从而使过桥线22绷紧在相邻的两个线圈21之间，使得过桥线22有效地绕制在跨越齿组122上，避免了过桥线22的松散。因此，本申请实施例提供的电机电枢100在无端子的情况下既可以稳固过桥线22，又一定程度地释放轭部11的端面区域，有利于提供工艺定位、支撑等，可以简化工装。可以理解，在其他实施例中，第二跨线段222沿铁芯1的第一端面13延伸，第一跨线段221从第二跨线段222的一端朝向铁芯1的第二端面14倾斜延伸至一个线圈21，第三跨线段223从第二跨线段222的另一端朝向铁芯1的第二端面14倾斜延伸至另一个线圈21也是可以的。
优选地，跨越齿组122包括至少两个跨越齿1221。作为一较佳实施方式，每个跨越齿组122包括两个跨越齿1221，三个线圈构成一组绕组2，形成三相电中的其中一相电的绕组2。可以理解，在其他实施例中，每个跨越齿组122也可以包括三个跨越齿1221或者四个跨越齿1221或者五个跨越齿1221，跨越齿组122设有跨越齿1221的数量不受本实施例的限制，可以根据实际情况进行设置。
请再次参阅图1和图4，每个线圈21包括进线端211和出线端212，进线端211和出线端212均设于线圈21之靠近轭部11的一端。通过该种设置方式，过桥线22靠近轭部11设置，从而在后续对跨越齿1221进行线圈绕线时，过桥线22不会对其造成干扰，有利于快速完成线圈21绕线工序。可以理解，在其他实施例中，进线端211和出线端212中的一者设于线圈21之靠近轭部11的一端，而另一者不设于线圈21之靠近轭部11的一端也是可以的。
优选地，绕组2还包括第一引线23和第二引线24，第一引线23连接绕组2之第一个线圈21的进线端211，第二引线24连接绕组2之最后一个线圈21的出线端212，过桥线22的第一跨线段221和第三跨线段223中的一个连接绕组2中的一个线圈的出线端212，另一个则连接绕组2中相邻线圈21的进线端211。请再次参阅图4，第一跨线段221连接与之相邻的线圈21的出线端212，第三跨线段223连接与之相邻的线圈21的进线端211。
请再次参阅图1和图3，轭部11为具有中空内孔111的圆环状结构，轭部11包括围合形成中空内孔111的内表面112和背对内表面112的外表面113，齿部12沿轭部11的周向凸设于外表面113。可以理解，齿部12沿轭部11的周向凸设于内表面112也是可以的。
优选地，齿部12包括齿本体123和设置于齿本体123远离轭部11一端的齿头124，线圈21绕设于齿本体123上；齿本体123自轭部11的内表面112朝向中空内孔111的中心延伸设置或自轭部11的外表面113朝远离中空内孔111的方向延伸设置。通过设置齿头124，可用于防止线圈21从齿本体123上脱落。
本申请实施例还提供一种电机（图未示），包括电机转子（图未示）和用于驱动电机转子转动的电机定子（图未示），电机转子和电机定子中的至少一者采用上述电机电枢100。在本实施例中，电机定子采用上述电机电枢100。
本申请实施例还提供一种上述电机电枢的绕线方法，包括以下步骤：
步骤S1，在一个绕线齿121上绕制形成绕组2中的一个线圈21；
步骤S2，在跨越齿组122上绕制形成过桥线22；
步骤S3，在相邻绕线齿121上绕制形成绕组2中的另一个线圈21。
通过在跨越齿组122上绕制形成过桥线22，过桥线22不再整体设置在轭部11的端面，而是通过跨越齿组122做了进一步的固定，因此加强了相邻两个线圈21之间的过桥线22的稳固性，避免过桥线22因过长到处移动造成松散；同时，因过桥线22不再整体设置在轭部11的端面，在一定程度上减少了占用轭部11的端面区域（即轭部11的公共区域），从而释放该区域，使该区域在后续加工等其他工艺过程中可以被使用，有利于提供工艺定位、支撑等，可以简化工装。因此，本申请实施例提供的电机电枢的绕线方法在无端子的情况下既可以稳固过桥线22，又一定程度地释放轭部11的端面区域，有利于提供工艺定位、支撑等，可以简化工装。
优选地，步骤S1还包括在线圈21的进线端211形成第一引线23；步骤S3之后还包括以下步骤：步骤S4：至少依次重复进行一次步骤S2和步骤S3；步骤S5：在步骤S4中形成绕组2的最后一个线圈21后，在最后一个线圈21的出线端212形成第二引线24。当要绕制多个线圈21时，多次操作步骤S4即可。
优选地，步骤S2包括如下步骤：
步骤S201：从一个线圈21的出线端212朝向跨越齿组122倾斜延伸形成第一跨线段221；
步骤S202：从第一跨线段221沿第二端面14在跨越齿组122上延伸形成第二跨线段222；
步骤S203：从第二跨线段222朝向第一端面13倾斜延伸并与另一个线圈21的进线端211连接形成第三跨线段223。
当然，作为一种替代的实施方式，从第一跨线段221沿第一端面13在跨越齿组122上延伸形成第二跨线段222也是可以的。
优选地，步骤S1以及步骤S3中，从绕线齿121之靠近轭部11的一端开始绕制线圈21，线圈21绕制完成之后，将出线端212从绕线齿121之靠近轭部11的一端引出。通过该种绕制方式，可使过桥线22位于跨越齿组122之靠近轭部11的一端，从而在后续对跨越齿1221进行线圈绕线时，过桥线22不会对其造成干扰，有利于快速完成线圈绕线工序。
以上所述仅是本申请的实施方式，在此应当指出，对于本领域的普通技术人员来说，在不脱离本申请创造构思的前提下，还可以做出改进，但这些均属于本申请的保护范围。

Claims (10)

  1. 一种电机电枢，其特征在于，包括铁芯和绕组，所述铁芯包括轭部和环绕所述轭部设置的齿部，所述绕组包括至少两个线圈和连接相邻两个所述线圈的过桥线；
    所述齿部包括至少两个用于绕制导线形成所述线圈的绕线齿和设于相邻两所述绕线齿之间以用于绕制形成所述过桥线的跨越齿组，相邻之所述绕线齿与所述跨越齿组之间间隔设置，所述跨越齿组包括至少一个跨越齿；
    所述过桥线包括依次连接的第一跨线段、第二跨线段和第三跨线段，所述铁芯具有相对设置的第一端面和第二端面，所述第二跨线段沿所述第二端面延伸于至少一个所述跨越齿上，所述第一跨线段从所述第二跨线段的一端朝向所述第一端面倾斜延伸并连接于一个所述线圈，所述第三跨线段从所述第二跨线段的另一端朝向所述第一端面倾斜延伸并连接于另一个所述线圈，所述第一跨线段和所述第三跨线段关于所述第二跨线段的中垂线对称设置。
  2. 根据权利要求1所述的电机电枢，其特征在于，每一所述线圈包括进线端和出线端，所述进线端和所述出线端均设于所述线圈之靠近所述轭部的一端；或者，所述进线端和所述出线端中的一者设于所述线圈之靠近所述轭部的一端。
  3. 根据权利要求2所述的电机电枢，其特征在于，所述绕组还包括第一引线和第二引线，所述第一引线连接所述绕组之第一个所述线圈的进线端，所述第二引线连接所述绕组之最后一个所述线圈的出线端，所述过桥线的所述第一跨线段和所述第三跨线段中的一个连接所述绕组中的一个所述线圈的出线端，另一个则连接所述绕组中相邻所述线圈的进线端。
  4. 根据权利要求1所述的电机电枢，其特征在于，所述轭部为具有中空内孔的圆环状结构，所述轭部包括围合形成所述中空内孔的内表面和背对所述内表面的外表面，所述齿部沿所述轭部的周向凸设于所述外表面或所述内表面。
  5. 根据权利要求4所述的电机电枢，其特征在于，所述齿部包括齿本体和设置于所述齿本体远离所述轭部一端的齿头，所述线圈绕设于所述齿本体上；所述齿本体自所述轭部的内表面朝向所述中空内孔的中心延伸设置或自所述轭部的外表面朝远离所述中空内孔的方向延伸设置。
  6. 一种电机，其特征在于，包括电机转子和用于驱动所述电机转子转动的电机定子，所述电机转子和所述电机定子中的至少一者采用如权利要求1至5任一项所述的电机电枢。
  7. 一种如权利要求1至5任一项所述的电机电枢的绕线方法，其特征在于，包括以下步骤：
    步骤S1，在一个所述绕线齿上绕制形成所述绕组中的一个所述线圈；
    步骤S2，在所述跨越齿组上绕制形成所述过桥线；
    步骤S3，在相邻所述绕线齿上绕制形成所述绕组中的另一个所述线圈。
  8. 根据权利要求7所述的电机电枢的绕线方法，其特征在于，步骤S1还包括在所述线圈的进线端形成第一引线；
    所述步骤S3之后还包括以下步骤：
    步骤S4：至少依次重复进行一次所述步骤S2和所述步骤S3；
    步骤S5：在所述步骤S4中形成所述绕组的最后一个线圈后，在最后一个线圈的出线端形成第二引线。
  9. 根据权利要求7或8所述的电机电枢的绕线方法，其特征在于，所述步骤S2包括如下步骤：
    步骤S201：从一个所述线圈的出线端朝向所述跨越齿组倾斜延伸形成所述第一跨线段；
    步骤S202：从所述第一跨线段沿所述第二端面在所述跨越齿组上延伸形成所述第二跨线段；
    步骤S203：从所述第二跨线段朝向第一端面倾斜延伸并与另一个线圈的进线端连接形成所述第三跨线段。
  10. 根据权利要求7或8所述的电机电枢的绕线方法，其特征在于，在所述步骤S1以及步骤S3中，从所述绕线齿之靠近所述轭部的一端开始绕制线圈，所述线圈绕制完成之后，将所述出线端从所述绕线齿之靠近所述轭部的一端引出。
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