WO2016095222A1 - 塑封定子的出线结构及塑封电机 - Google Patents

塑封定子的出线结构及塑封电机 Download PDF

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Publication number
WO2016095222A1
WO2016095222A1 PCT/CN2014/094416 CN2014094416W WO2016095222A1 WO 2016095222 A1 WO2016095222 A1 WO 2016095222A1 CN 2014094416 W CN2014094416 W CN 2014094416W WO 2016095222 A1 WO2016095222 A1 WO 2016095222A1
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WO
WIPO (PCT)
Prior art keywords
wire
outlet structure
clamping block
plastic
stator assembly
Prior art date
Application number
PCT/CN2014/094416
Other languages
English (en)
French (fr)
Inventor
李煜
井赟
甘峰
李鑫期
黄柒浩
Original Assignee
广东威灵电机制造有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 广东威灵电机制造有限公司 filed Critical 广东威灵电机制造有限公司
Priority to PCT/CN2014/094416 priority Critical patent/WO2016095222A1/zh
Publication of WO2016095222A1 publication Critical patent/WO2016095222A1/zh

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Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K3/00—Details of windings
    • H02K3/46—Fastening of windings on the stator or rotor structure
    • H02K3/50—Fastening of winding heads, equalising connectors, or connections thereto
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K5/00—Casings; Enclosures; Supports
    • H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
    • H02K5/22—Auxiliary parts of casings not covered by groups H02K5/06-H02K5/20, e.g. shaped to form connection boxes or terminal boxes

Definitions

  • the invention belongs to the field of electric machines, and in particular relates to an outlet structure of a plastically sealed stator and a plastic-sealed motor having the appearance structure.
  • the outlet mode of the existing plastic-sealed motor is as follows: firstly, the lead wire and the power wire of the stator winding are respectively soldered and fixed on the circuit board, and then the power wire is pulled out from the wire and out of the plastic-sealed motor.
  • This kind of outlet method has the following deficiencies in the specific application: 1) It is necessary to solder the circuit board and the power line and the welding circuit board and the stator winding lead, and the outgoing line process is complicated, which leads to the production efficiency and production cost of the plastic-sealed motor. 2) The axial dimension of the outlet part is too large, which leads to the large axial dimension of the plastic-sealed motor.
  • the object of the present invention is to overcome the above-mentioned deficiencies of the prior art, and to provide a wire-sending structure of a plastic-sealed stator and a plastic-sealing motor, which solves the technical problem that the existing plastic-clad motor has a complicated wire-out process and a large axial dimension of the plastic-sealed motor.
  • the present invention adopts a technical solution of: molding an outlet structure of a stator, including a power cord, a stator assembly, a lead clip mounted on the stator assembly, and a package mounted on the stator assembly and the lead clip.
  • the outer casing has a winding lead, and one end of the power cord is connected to the winding lead and is packaged and fixed in the plastic casing, and the other end is inserted from the wire outside the plastic casing.
  • the wire clamp comprises an upper clamp and a lower clamp
  • the lower clamp is mounted on the stator assembly
  • the upper clamp is fastened to the lower clamp and the lower clamp Enclosure forms a wire hole through which the power cord passes out of the plastic casing.
  • the upper clamping block is provided with a notch communicating with the wire hole, and the power wire extends through the wire hole along the radial direction of the stator assembly and along the axial direction of the stator assembly.
  • the notch is bent out of the outer casing of the plastic casing.
  • the upper clamping block is provided with a first wire groove
  • the lower clamping block is provided with a second wire groove, and the first wire groove and the second wire groove are enclosed to form the wire hole.
  • a connecting belt is further disposed between the upper clamping block and the lower clamping block, and the upper clamping block, the lower clamping block and the connecting belt are integrally formed.
  • a first button body is protruded from the upper clamping block, and a first button hole is disposed on the lower clamping block, and the first button body is fastened in the first button hole.
  • a second button body and a pin are protruded from the lower clamping block, a second button hole and a card slot are disposed on the stator assembly, and the second button body is fastened in the second button hole.
  • the pin card is inserted into the card slot.
  • an insulation sleeve is sleeved at a connection between the power line and the winding lead.
  • the power cord is connected to the winding lead through a riveted terminal, or the power cord is soldered to the winding lead.
  • the present invention also provides a plastic-sealed motor comprising the above-described outlet structure of a molded stator.
  • the outlet structure of the plastic-sealed stator and the plastic-sealing motor provided by the invention are connected directly to the winding lead through the winding lead and through the lead holder, and at the same time, the part of the power line located between the lead clip and the winding lead is passed through the plastic-sealed outer casing.
  • the package is fixed, so that the power line is effectively fixed on the one hand, the circuit board design is reduced on the other hand, the cost is saved, the axial dimension of the outlet structure is reduced, and the axial dimension of the plastic motor is reduced.
  • the welding process of the circuit board and the power line, the welding process of the circuit board and the stator winding lead are reduced, thereby simplifying the outlet line process of the power line and improving the production efficiency of the plastic-sealed motor.
  • FIG. 1 is a cross-sectional structural view showing an outlet structure of a molded stator according to an embodiment of the present invention
  • FIG. 2 is a schematic perspective structural view of an outlet structure of a molded stator according to an embodiment of the present invention
  • FIG. 3 is a schematic view showing the assembly structure of a wire clip, an insulating frame, and a stator core according to an embodiment of the present invention
  • FIG. 4 is a schematic structural view of a wire clip before being fastened to form a wire hole according to an embodiment of the present invention
  • FIG. 5 is a schematic structural view 1 of a wire clip formed by an embodiment of the present invention.
  • FIG. 6 is a second schematic structural view of the wire clip formed by the embodiment of the present invention.
  • FIG. 7 is a schematic structural diagram of an upper clamping block according to an embodiment of the present invention.
  • FIG. 8 is a schematic diagram of a forward structure of a lower clip according to an embodiment of the present invention.
  • FIG. 9 is a schematic diagram of a reverse structure of a lower clamp provided by an embodiment of the present invention.
  • FIG. 10 is a schematic structural view of an insulating frame according to an embodiment of the present invention.
  • FIG. 11 is a schematic view showing the assembly structure of a lower clip and an insulating frame according to an embodiment of the present invention.
  • left, right, upper, lower, top, bottom and other orientation terms in this embodiment are only relative concepts or reference to the normal use state of the product, and should not be considered as having Restrictive.
  • the outlet structure of the molded stator includes a power cord 1, a stator assembly 2, a lead clamp 3 mounted on the stator assembly 2, and is packaged outside the stator assembly 2 and the lead clamp 3.
  • the plastic package 4 has a winding lead (not shown).
  • One end of the power line 1 is connected to the winding lead and is packaged and fixed in the plastic case 4, and the other end is passed from the wire holder 3 out of the plastic case 4.
  • the stator assembly 2 includes a stator core 21, an insulating frame 23 sleeved on the stator core 21, and stator windings 22 wound or embedded on the insulating frame 23.
  • the wire clips 3 are specifically mounted on the insulating frame 23.
  • the winding leads are the leads of the stator winding 22.
  • the outlet structure of the molded stator provided by the embodiment of the present invention is directly connected to the winding lead by the power supply line 1 and is passed through the lead clip 3, and at the same time, the power supply line 1 is located at the lead clamp 3 and the winding lead through the plastic sealed casing 4.
  • the part is packaged and fixed, so that the fixing of the power line 1 is effectively realized on the one hand, and the design of the circuit board is reduced on the other hand, the cost is saved, and the axial dimension of the outgoing structure is reduced, thereby facilitating the reduction.
  • the axial dimension of the plastic motor on the other hand, the welding process of the circuit board and the power line 1 and the welding process of the lead of the circuit board and the stator winding 22 are reduced, thereby simplifying the outlet line process of the power line 1, and improving the production efficiency of the plastic-sealed motor .
  • the wire clamp 3 includes an upper clamp block 31 and a lower clamp block 32, and the lower clamp block 32 is mounted on the stator assembly 2, and the upper clamp block 31 is fastened to The lower clamp block 32 is enclosed by the lower clamp block 32 to form a wire hole 30, and the power supply wire 1 passes through the plastic seal outer casing 4 from the wire hole 30.
  • the plastic case 4 has a first covering portion 41 covered on the upper clamping block 31 and a second covering portion covering a portion of the power supply line 1 between the wire holder 3 and the winding lead (not shown) Mark).
  • the power cable 1 can be firstly clamped on the lower clamping block 32, and then the upper clamping block 31 is covered. It is fixed on the lower clamping block 32 and presses the power cable 1 so that the assembly operation of the power cable 1 and the wire clamp 3 is very simple, the assembly efficiency of the power cable 1 and the wire clamp 3 is improved, and the power cable is further improved. 1 outlet operation efficiency.
  • a connecting belt 33 is further disposed between the upper clamping block 31 and the lower clamping block 32, and the upper clamping block 31, the lower clamping block 32 and the connecting belt 33 are integrally injection molded, so as to facilitate the supporting system.
  • the upper clamping block 31 and the lower clamping block 32 can be stored together, which facilitates the use of the upper clamping block 31 and the lower clamping block 32, thereby ensuring the upper clamping block.
  • the precision of the cooperation with the lower clamp block 32 prevents the occurrence of the phenomenon that the upper clamp block 31 and the lower clamp block 32 are difficult to assemble due to the mismatch of the upper clamp block 31 and the lower clamp block 32 in a specific application.
  • the connecting belt 33 may not be provided, and the upper clamping block 31 and the lower clamping block 32 may be separately stored.
  • a notch 310 communicating with the wire hole 30 is formed in the upper clamping block 31, and the power cable 1 extends through the wire hole 30 along the radial direction of the stator assembly 2 and along the stator assembly 2.
  • the axial direction is bent out of the notch 310 out of the plastic casing 4, that is, the wire hole 30 extends in the radial direction of the stator assembly 2, and the notch 310 extends in the axial direction of the stator assembly 2.
  • the wire hole 30 extends in the radial direction of the stator assembly 2, such that the power wire 1 extends outwardly from the inside of the wire hole 30 to the notch 310 in the radial direction of the stator assembly 2, which is advantageous for reducing
  • the axial dimension of the outlet structure of the small power cord 1 is beneficial to reduce the axial dimension of the plastic motor; meanwhile, since the notch 310 extends along the axial direction of the stator assembly 2, the power cord 1 is along the stator assembly 2.
  • the axial direction extends outwardly from the inside of the notch 310, so that the power cord 1 extending from the inside of the lead clamp 3 out of the plastic enclosure 4 extends in the axial direction of the parallel stator assembly 2 and extends out of the plastic stator, that is, the power cord 1
  • the portion penetrating from the notch 310 extends in a direction parallel to the axial direction of the stator assembly 2, thereby ensuring a safe creepage distance of the power line 1 outlet line, thereby enabling the plastic motor to be cooled while reducing the axial dimension of the plastic motor. It can meet the electrical performance requirements of UL certification, so that the plastic motor can simultaneously consider the performance, size and safety of the plastic motor.
  • the inner wall of the first wire groove 311 and the inner wall of the second wire groove 321 are both in a smooth arc shape, so as to prevent the power wire 1 from being scratched by the inner wall of the wire hole 30. occur.
  • two opposite protrusions 3211 are protruded from the inner wall of each of the second wire grooves 321 , so that the power line 1 can be restricted by the protrusions 3211 . Therefore, the reliability of positioning the power cord 1 in the second slot 321 is improved.
  • the number of the wire holes 30, the number of the first wire grooves 311, the number of the second wire grooves 321, and the number of the notches 310 are the same as the number of the power supply wires 1, and one power supply wire 1 corresponds to one wire hole 30 and one
  • the notch 310 passes out of the plastic casing 4.
  • the power cable 1 is provided with three wires
  • the wire hole 30 formed by the upper clamp block 31 and the lower clamp block 32 is correspondingly provided with three, that is, the first wire slot 311 and the second wire slot 321 are correspondingly provided with three.
  • Each of the first wire grooves 311 and the second wire grooves 321 are oppositely formed to form a plurality of wire holes 30; the notch 310 is also correspondingly provided with three, and the three power wires 1 are respectively disposed in the three wire holes 30 and respectively respectively The notch 310 is inserted out of the plastic outer casing 4.
  • the number of power lines 1, the number of line holes 30, the first line slot The number of 311, the number of second line grooves 321 and the number of notches 310 can all be set to other values.
  • the first clamping body 312 and the lower clamping block are protruded from the upper clamping block 31.
  • the first button body 312 is fastened into the first button hole 322.
  • the first button body 312 extends downwardly along the bottom surface of the upper clamping block 31 facing the lower clamping block 32.
  • the first button body 312 includes a first extending rod and a first barb protruding from the bottom end of the first extending rod.
  • a buttonhole 322 is disposed through the lower clamp block 32, and the first buttonhole A latching boss 3221 is embossed in the 322, and the first barb is hooked on the latching boss 3221 during the mounting, so that the first button body 312 and the first buttonhole 322 are buckled.
  • the first button body 312 and the first button hole 322 are both provided, so that the stability of the upper clip block 31 and the lower clip block 32 can be further ensured, and the processing cost is not too high.
  • the specific number of the first button body 312 and the first button hole 322 can also be set to other values.
  • the lower clamp block 32 is mounted on the insulating frame 23 of the stator assembly 2 by means of a snap connection, which is convenient to disassemble and assemble, and has good positioning reliability.
  • the second clamping body 323 and the prongs are protruded from the lower clamping block 32.
  • the second frame hole 231 and the card slot 232 are disposed on the insulating frame 23 of the stator assembly 2
  • the second button body 323 is fastened into the second button hole 231
  • the pin 324 is inserted into the card slot 232.
  • the second button body 323 and the pin 324 extend downwardly along the bottom surface of the lower clip block 32, and the second button body 323 includes a second extension rod and a second portion protruding from the bottom end of the second extension rod.
  • the second barb is hooked on the inner wall of the second fastening hole 231, so that the buckle connection of the second button body 323 and the second button hole 231 is realized.
  • the pin 324 is a T-shaped block, and the card slot 232 is disposed in cooperation with the pin 324.
  • the snap connection of the second fastening body 323 and the second fastening hole 231 can effectively limit the displacement of the lower clamping block 32 along the axial direction of the stator assembly 2 away from the insulating frame 23;
  • the 324 is engaged with the card slot 232 to effectively limit the radial displacement displacement, the circumferential rotational displacement of the lower clamp block 32, and the displacement along the axial direction of the stator assembly 2 away from the insulating frame 23;
  • the snap-fit connection of the second button body 323 and the second buttonhole 231, and the card insertion and engagement of the pin 324 and the card slot 232 ensure the stable reliability of the lower clip block 32 being inserted into the insulating frame 23, thereby facilitating prevention.
  • the phenomenon in which the lower jaws 32 are displaced during the process of encapsulating the plastic outer casing 4 occurs.
  • the second button body 323, the pin 324, the second button hole 231 and the card slot 232 are provided with two, so as to further ensure the stable reliability of the connection of the lower clip 32 and the insulating frame 23, and the processing cost thereof. Not too high.
  • the specific number of the second button body 323, the pin 324, the second button hole 231, and the card slot 232 can also be set to other values.
  • connection between the power line 1 and the winding lead is sleeved with an insulating sleeve (not shown), so as to facilitate the connection reliability of the protection power line 1 and the winding lead, and facilitate the connection of the power line 1 and the winding lead. Insulation treatment at the place.
  • the insulating sleeve can be bundled and fixed to the insulating frame by a binding tape (not shown). 23 on.
  • the power cord 1 is connected to the winding lead through a riveted terminal (not shown), or the power cord 1 is soldered to the winding lead; thus, the reliability of the connection between the power cord 1 and the winding lead is ensured, and the power cord 1 is advantageously implemented.
  • the fast connection operation of the winding leads facilitates the connection operation efficiency of the power line 1 and the winding leads.
  • the specific manufacturing process of the outlet structure of the molded stator provided by the embodiment of the present invention is as follows: the power cable 1 and the winding lead are connected, and the lower clamp 32 is mounted on the insulating frame 23 of the stator assembly 2; then the power cables 1 are respectively carded Positioning is performed in each of the second wire grooves 321 of the lower clamp block 32; the upper clamp block 31 is fastened to the lower clamp block 32; and then the structure formed by combining the stator assembly 2, the wire clamp 3 and the power supply wire 1 is placed.
  • the plastic mold the power cord 1 protruding from the wire clamp 3 is pulled out from the side opening of the plastic mold, and the upper clamp 31 and the lower clamp 32 are pressed by the plastic mold; finally, the plastic mold is pressed.
  • the BMC material is injected into the plastic molded case 4 for molding. Since it has been previously pressed by the upper and lower clamp blocks 31, 32 on the plastic mold before the plastic molding, it can prevent the overflow of the BMC material during the injection molding process.
  • the power cord 1 is vertically bent from the notch 310 of the upper clamp block 31 to extend in the axial direction of the stator assembly 2.
  • the outlet structure of the plastic sealed stator provided by the embodiment of the invention simplifies the outlet line process of the power cord 1, reduces the axial dimension of the plastic-sealed motor, and reduces the production cost of the plastic-sealed motor.
  • the embodiment of the invention further provides a plastic-sealed motor comprising the above-mentioned outlet structure of the molded stator.
  • the plastic-sealed motor provided by the embodiment of the invention adopts the above-mentioned outlet structure of the plastic-sealed stator, so that the axial dimension of the plastic-sealed motor can be reduced on the one hand, which facilitates the miniaturization of the plastic-sealed motor; on the other hand, the plastic-enclosed motor is simplified.
  • the production process improves the production efficiency of the plastic-sealed motor; on the other hand, it reduces the production cost of the plastic-sealed motor.

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Insulation, Fastening Of Motor, Generator Windings (AREA)

Abstract

提供了一种塑封定子的出线结构及塑封电机。塑封定子的出线结构包括电源线（1）、定子组件（2）、安装于定子组件上的导线夹（3）和封装于定子组件与导线夹外的塑封外壳（4），定子组件具有绕组引线，电源线的一端连接绕组引线并封装固定于塑封外壳内，另一端从导线夹穿出塑封外壳外。该出线结构和塑封电机实现了电源线的固定，并减少了电路板的设计，简化了电源线的出线工艺，减小塑封电机的轴向尺寸，提高了塑封电机的生产效率，节约了成本。

Description

塑封定子的出线结构及塑封电机 技术领域
本发明属于电机领域，尤其涉及塑封定子的出线结构及具有该出现结构的塑封电机。
 背景技术
现有的塑封电机的出线方式为：先将定子绕组的引线和电源线都分别焊接固定于电路板上，再将电源线从导线夹穿出塑封电机外。这种出线方式，在具体应用中存在以下不足之处：1）需要焊接电路板与电源线和焊接电路板与定子绕组引线，其出线工艺比较复杂，从而导致塑封电机的生产效率和生产成本较高；2）出线部分轴向尺寸偏大，从而导致塑封电机的轴向尺寸偏大；3）在兼顾塑封电机性能和轴向尺寸的前提下，容易出现因爬电距离不够造成塑封电机无法满足UL（保险商试验所，Underwriter Laboratories Inc.）认证要求的情形，这样，在设计时难以兼顾塑封电机的性能、尺寸和安全性。
 技术问题
本发明的目的在于克服上述现有技术的不足，提供了塑封定子的出线结构及塑封电机，其解决了现有塑封电机出线工艺复杂、塑封电机轴向尺寸大的技术问题。
 技术解决方案
为达到上述目的，本发明采用的技术方案是：塑封定子的出线结构，包括电源线、定子组件、安装于所述定子组件上的导线夹和封装于所述定子组件与所述导线夹外的塑封外壳，所述定子组件具有绕组引线，所述电源线的一端连接所述绕组引线并封装固定于所述塑封外壳内，另一端从所述导线夹穿出所述塑封外壳外。
优选地，所述导线夹包括上夹块和下夹块，所述下夹块安装于所述定子组件上，所述上夹块扣合于所述下夹块上并与所述下夹块围合形成线孔，所述电源线从所述线孔内穿出所述塑封外壳外。
优选地，所述上夹块上贯穿设有与所述线孔连通的缺口，所述电源线沿所述定子组件的径向延伸穿过所述线孔并沿所述定子组件的轴向从所述缺口内弯折穿出所述塑封外壳外。
优选地，所述上夹块上设有第一线槽，所述下夹块上设有第二线槽，所述第一线槽与所述第二线槽围合形成所述线孔。
优选地，所述上夹块与所述下夹块之间还设有连接带，且所述上夹块、所述下夹块和所述连接带一体成型。
优选地，所述上夹块上凸设第一扣体，所述下夹块上设有第一扣孔，所述第一扣体扣合于所述第一扣孔内。
优选地，所述下夹块上凸设第二扣体和插脚，所述定子组件上设有第二扣孔和卡槽，所述第二扣体扣合于所述第二扣孔内，所述插脚卡插于所述卡槽内。
优选地，所述电源线与所述绕组引线的连接处套设有绝缘套管。
优选地，所述电源线通过铆接端子连接所述绕组引线，或者，所述电源线焊接 所述绕组引线。
进一步地，本发明还提供了塑封电机，其包括上述的塑封定子的出线结构。
 有益效果
本发明提供的塑封定子的出线结构及塑封电机，通过将电源线直接与绕组引线连接，并从导线夹内穿出，同时，通过塑封外壳将电源线之位于导线夹与绕组引线之间的部分进行封装固定，这样，一方面有效实现了电源线的固定，另一方面减少了电路板的设计，节约了成本，并减小了出线结构的轴向尺寸，利于减小塑封电机的轴向尺寸；再一方面减少了电路板与电源线的焊接工艺、电路板与定子绕组引线的焊接工艺，进而简化了电源线的出线工艺，利于提高塑封电机的生产效率。
附图说明
图1是本发明实施例提供的塑封定子的出线结构的剖面结构示意图；
图2是本发明实施例提供的塑封定子的出线结构的立体结构示意图；
图3是本发明实施例提供的导线夹、绝缘框架和定子铁芯的装配结构示意图；
图4是本发明实施例提供的导线夹未扣合形成线孔前的结构示意图；
图5是本发明实施例提供的导线夹扣合形成线孔后的结构示意图一；
图6是本发明实施例提供的导线夹扣合形成线孔后的结构示意图二；
图7是本发明实施例提供的上夹块的结构示意图；
图8是本发明实施例提供的下夹块的正向结构示意图；
图9是本发明实施例提供的下夹块的反向结构示意图；
图10是本发明实施例提供的绝缘框架的结构示意图；
图11是本发明实施例提供的下夹块与绝缘框架的装配结构示意图。
 本发明的实施方式
为了使本发明的目的、技术方案及优点更加清楚明白，以下结合附图及实施例，对本发明进行进一步详细说明。应当理解，此处所描述的具体实施例仅仅用以解释本发明，并不用于限定本发明。
需要说明的是，当元件被称为“固定于”或“设置于”另一个元件上时，它可以直接在另一个元件上或者可能同时存在居中元件。当一个元件被称为是“连接”另一个元件，它可以是直接连接另一个元件或者可能同时存在居中元件。
还需要说明的是，本实施例中的左、右、上、下、顶、底等方位用语，仅是互为相对概念或是以产品的正常使用状态为参考的，而不应该认为是具有限制性的。
如图1～3所示，本发明实施例提供的塑封定子的出线结构，包括电源线1、定子组件2、安装于定子组件2上的导线夹3和封装于定子组件2与导线夹3外的塑封外壳4，定子组件2具有绕组引线（图未示），电源线1的一端连接绕组引线并封装固定于塑封外壳4内，另一端从导线夹3穿出塑封外壳4外。具体地，定子组件2包括定子铁芯21、套设于定子铁芯21上的绝缘框架23和绕设或嵌设于绝缘框架23上的定子绕组22，导线夹3具体安装于绝缘框架23上，绕组引线为定子绕组22的引线。本发明实施例提供的塑封定子的出线结构，通过将电源线1直接与绕组引线连接，并从导线夹3内穿出，同时，通过塑封外壳4将电源线1之位于导线夹3与绕组引线之间的部分进行封装固定，这样，一方面有效实现了电源线1的固定，另一方面减少了电路板的设计，节约了成本，并减小了出线结构的轴向尺寸，从而利于减小塑封电机的轴向尺寸；再一方面减少了电路板与电源线1的焊接工艺、电路板与定子绕组22引线的焊接工艺，进而简化了电源线1的出线工艺，利于提高塑封电机的生产效率。
具体地，如图1、图2、图4和图6所示，导线夹3包括上夹块31和下夹块32，下夹块32安装于定子组件2上，上夹块31扣合于下夹块32上并与下夹块32围合形成线孔30，电源线1从线孔30内穿出塑封外壳4外。具体地，塑封外壳4具有包覆于上夹块31上的第一包覆部41和包覆于电源线1之位于导线夹3与绕组引线之间的部分的第二包覆部（图未标示）。由于线孔30是由上夹块31和下夹块32两部分围合形成的，故，具体安装时，可先将电源线1卡于下夹块32上，再将上夹块31盖合固定于下夹块32上并将电源线1压紧，这样，使得电源线1与导线夹3的组装操作非常简单，提高了电源线1与导线夹3的组装效率，进而进一步提高了电源线1的出线操作效率。
优选地，如图4所示，上夹块31与下夹块32之间还设有连接带33，且上夹块31、下夹块32和连接带33一体注塑成型，这样，利于配套制成的上夹块31与下夹块32可存放在一起，利于上夹块31与下夹块32的配套使用，从而保证了上夹块 31与下夹块32的配合精度，防止了具体应用中出现由于上夹块31与下夹块32不配套而导致上夹块31与下夹块32难以装配的现象。当然了，具体应用中，也可不设置连接带33，而使上夹块31与下夹块32单独存放。
优选地，如图1～5所示，上夹块31上贯穿设有与线孔30连通的缺口310，电源线1沿定子组件2的径向延伸穿过线孔30并沿定子组件2的轴向从缺口310内弯折穿出塑封外壳4外，即线孔30是沿定子组件2的径向延伸的，缺口310是沿定子组件2的轴向延伸的。本实施例中，由于线孔30是沿定子组件2的径向延伸的，这样，使得电源线1是沿定子组件2的径向从线孔30内向外延伸到缺口310处的，其利于减小电源线1出线结构的轴向尺寸，从而利于减小塑封电机的轴向尺寸；同时，由于缺口310是沿定子组件2的轴向延伸的，故，使得电源线1是沿定子组件2的轴向从缺口310内向外延伸的，使得最终从导线夹3内延伸出塑封外壳4外的电源线1是沿平行定子组件2轴向的方向延伸穿出塑封定子外的，即电源线1之从缺口310内穿出的部分沿与定子组件2的轴向平行的方向延伸，从而保证了电源线1出线的安全爬电距离，进而可在缩小塑封电机轴向尺寸的前提下使塑封电机仍可满足UL认证对电气性能的要求，使得塑封电机可同时兼顾塑封电机的性能、体型尺寸和安全性。
优选地，如图4、图7和图8所示，第一线槽311的内壁和第二线槽321的内壁都呈光滑弧状，这样，利于防止电源线1被线孔30内壁刮伤的情形发生。
优选地，如图4和图8所示，每个第二线槽321的内壁上还凸设有两个相对的凸起3211，这样，可通过凸起3211对电源线1起到限位作用，从而利于提高电源线1在第二线槽321内定位的可靠性。
具体地，线孔30的数量、第一线槽311的数量、第二线槽321的数量、缺口310的数量都与电源线1的数量相同，一根电源线1对应从一个线孔30和一个缺口310穿出塑封外壳4外。本实施例中，电源线1设有三根，上夹块31与下夹块32围合形成的线孔30对应设有三个，即第一线槽311和第二线槽321都对应设有三个，各第一线槽311和各第二线槽321两两相对围合形成各线孔30；缺口310也对应设有三个，三根电源线1分别穿设于三个线孔30内并分别从三个缺口310内穿出塑封外壳4外。当然了，具体应用中，电源线1的数量、线孔30的数量、第一线槽 311的数量、第二线槽321的数量和缺口310的数量都可设为其它数值。
优选地，如图3、图7、图8和图9所示，上夹块31上凸设第一扣体312，下夹块 32上设有第一扣孔322，第一扣体312扣合于第一扣孔322内。第一扣体312沿上夹块31之朝向下夹块32的底面向下延伸凸设，第一扣体312包括第一延伸杆和凸设于第一延伸杆底端的第一倒钩，第一扣孔322贯穿设于下夹块32上，第一扣孔 322内凸设有卡位凸台3221，安装时，第一倒钩倒勾于第卡位凸台3221上，这样，即实现了第一扣体312与第一扣孔322的卡扣连接。
优选地，第一扣体312和第一扣孔322都设有两个，这样，利于进一步保证上夹块31与下夹块32卡扣连接的稳固可靠性，且其加工成本不会太高。当然了，具体应用，第一扣体312和第一扣孔322的数量也可设为其它数值。
优选地，下夹块32通过卡扣连接方式安装于定子组件2的绝缘框架23上，其拆装方便、定位可靠性佳。
优选地，如图3、图9、图10和图11所示，下夹块32上凸设第二扣体323和插脚 324，定子组件2的绝缘框架23上设有第二扣孔231和卡槽232，第二扣体323扣合于第二扣孔231内，插脚324卡插于卡槽232内。第二扣体323和插脚324都沿下夹块32之背对上夹块31的底面向下延伸凸设，第二扣体323包括第二延伸杆和凸设于第二延伸杆底端的第二倒钩，安装时，第二倒钩倒勾于第二扣孔231的内壁上，这样，即实现了第二扣体323与第二扣孔231的卡扣连接。插脚324为T形块体，卡槽232与插脚324配合设置。第二扣体323与第二扣孔231的卡扣连接，可有效限制下夹块32沿定子组件2的轴向朝远离绝缘框架23的方向移动位移；插脚 324与卡槽232的卡插配合，可有效限制下夹块32的径向移动位移、周向旋转位移和沿定子组件2的轴向朝远离绝缘框架23的方向移动的位移；这样，通过第二扣体323与第二扣孔231的卡扣连接、插脚324与卡槽232的卡插配合的共同作用，可保证下夹块32卡插于绝缘框架23上的稳固可靠性，从而利于防止封装塑封外壳4的过程中下夹块32移位的现象发生。
优选地，第二扣体323、插脚324、第二扣孔231和卡槽232都设有两个，这样，利于进一步保证下夹块32与绝缘框架23连接的稳固可靠性，且其加工成本不会太高。当然了，具体应用，第二扣体323、插脚324、第二扣孔231和卡槽232的数量也可设为其它数值。
优选地，电源线1与绕组引线的连接处套设有绝缘套管（图未示），这样，利于防护电源线1与绕组引线的连接可靠性，并利于实现电源线1与绕组引线的连接处的绝缘处理。绝缘套管具体可通过绑扎带（图未示）绑扎固定于绝缘框架 23上。
优选地，电源线1通过铆接端子（图未示）连接绕组引线，或者，电源线1焊接绕组引线；这样，既可保证电源线1与绕组引线连接的可靠性，又利于实现电源线1与绕组引线的快速连接操作，利于提高电源线1与绕组引线的连接操作效率。
本发明实施例提供的塑封定子的出线结构的具体制造过程如下：连接电源线1与绕组引线，并将下夹块32安装于定子组件2的绝缘框架23上；然后将各电源线1分别卡于下夹块32的各第二线槽321内进行预定位；再将上夹块31扣合于下夹块32上；然再将定子组件2、导线夹3和电源线1组合形成的结构放置于塑封模具内，并使从导线夹3内伸出的电源线1从塑封模具的侧面开孔处拉出，同时通过塑封模具将上夹块31和下夹块32压紧；最后往塑封模具内注入BMC材料进行塑封成型塑封外壳4。由于在塑封前，其已事先通过塑封模具上的上夹块31和下夹块32压紧，故，其可防止注塑过程中BMC材料的溢出。在塑封成型塑封外壳4后，再将电源线1从上夹块31的缺口310内垂直弯折使其沿定子组件2的轴向延伸。本发明实施例提供的塑封定子的出线结构，简化了电源线1的出线工艺，并减小了塑封电机的轴向尺寸，降低了塑封电机的生产成本。
进一步地，本发明实施例还提供了塑封电机，其包括上述的塑封定子的出线结构。本发明实施例提供的塑封电机，由于采用了上述的塑封定子的出线结构，故，一方面可减小塑封电机的轴向尺寸，利于塑封电机向小型化发展；另一方面简化了塑封电机的生产工艺，提高了塑封电机的生产效率；再一方面降低了塑封电机的生产成本。
以上所述仅为本发明的较佳实施例而已，并不用以限制本发明，凡在本发明的精神和原则之内所作的任何修改、等同替换或改进等，均应包含在本发明的保护范围之内。

Claims (10)

  1. 塑封定子的出线结构，包括电源线、定子组件、安装于所述定子组件上的导线夹和封装于所述定子组件与所述导线夹外的塑封外壳，所述定子组件具有绕组引线，其特征在于：所述电源线的一端连接所述绕组引线并封装固定于所述塑封外壳内，另一端从所述导线夹穿出所述塑封外壳外。
  2. 如权利要求1所述的塑封定子的出线结构，其特征在于：所述导线夹包括上夹块和下夹块，所述下夹块安装于所述定子组件上，所述上夹块扣合于所述下夹块上并与所述下夹块围合形成线孔，所述电源线从所述线孔内穿出所述塑封外壳外。
  3. 如权利要求2所述的塑封定子的出线结构，其特征在于：所述上夹块上贯穿设有与所述线孔连通的缺口，所述电源线沿所述定子组件的径向延伸穿过所述线孔并沿所述定子组件的轴向从所述缺口内弯折穿出所述塑封外壳外。
  4. 如权利要求2或3所述的塑封定子的出线结构，其特征在于：所述上夹块上设有第一线槽，所述下夹块上设有第二线槽，所述第一线槽与所述第二线槽围合形成所述线孔。
  5. 如权利要求2或3所述的塑封定子的出线结构，其特征在于：所述上夹块与所述下夹块之间还设有连接带，且所述上夹块、所述下夹块和所述连接带一体成型。
  6. 如权利要求2或3所述的塑封定子的出线结构，其特征在于：所述上夹块上凸设第一扣体，所述下夹块上设有第一扣孔，所述第一扣体扣合于所述第一扣孔内。
  7. 如权利要求2或3所述的塑封定子的出线结构，其特征在于：所述下夹块上凸设第二扣体和插脚，所述定子组件上设有第二扣孔和卡槽，所述第二扣体扣合于所述第二扣孔内，所述插脚卡插于所述卡槽内。
  8. 如权利要求1所述的塑封定子的出线结构，其特征在于：所述电源线与所述绕组引线的连接处套设有绝缘套管。
  9. 如权利要求1或2或3或8所述的塑封定子的出线结构，其特征在于：所述电源线通过铆接端子连接所述绕组引线，或者，所述电源线焊接所述绕组引线。
  10. 塑封电机，其特征在于：包括如权利要求1至9任一项所述的塑封定子的出线结构。
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