WO2020134659A1 - 一种磁悬浮直线电机 - Google Patents

一种磁悬浮直线电机 Download PDF

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Publication number
WO2020134659A1
WO2020134659A1 PCT/CN2019/117467 CN2019117467W WO2020134659A1 WO 2020134659 A1 WO2020134659 A1 WO 2020134659A1 CN 2019117467 W CN2019117467 W CN 2019117467W WO 2020134659 A1 WO2020134659 A1 WO 2020134659A1
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WIPO (PCT)
Prior art keywords
stator
lead
wire
magnetic levitation
linear motor
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PCT/CN2019/117467
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English (en)
French (fr)
Inventor
洪茂钦
余浩
龚宇
蔡泽农
杜海洋
庄治民
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苏州贝得科技有限公司
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Publication of WO2020134659A1 publication Critical patent/WO2020134659A1/zh

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    • 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
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K41/00—Propulsion systems in which a rigid body is moved along a path due to dynamo-electric interaction between the body and a magnetic field travelling along the path
    • H02K41/02—Linear motors; Sectional motors

Definitions

  • the invention relates to the field of linear motors, in particular to the field of linear motors applied to magnetic suspension trains, in particular to a magnetic suspension linear motor.
  • the magnetic levitation linear motor is an important driving device of the magnetic levitation train, which mainly includes a primary installed at the bottom of the train car and a secondary laid on the surface of the rail, wherein the primary includes the stator core and the winding coil embedded in the stator core, the secondary is along the length
  • the aluminum plates on the surface of the rail are inevitably lifted at the splicing position, and the aluminum plate on the rail surface is often inevitably raised at the joint. Factors such as undulation, rail flatness, and train weight changes will cause the gap between the train and the rail to change, resulting in direct scratching of the primary stator core and the tilted aluminum plate.
  • the aluminum plate will be damaged by the stator core Lifting off the surface of the rail, destroying the track, and affecting the safe operation of the railway; and the existing two ends of the stator slot of the stator core are mostly right-angled or sharp-angled, when the winding coil is embedded in the stator slot, the right-angle or The sharp corners often scratch the surface of the winding coil, which affects the performance of the motor.
  • the primary lead wire of the existing magnetic levitation linear motor is to directly dip and bake the paint after crimping the joint of the winding coil and the cable lead through the metal terminal.
  • the present invention provides a magnetic levitation linear motor, which can solve the problem that the primary stator core of the existing magnetic levitation linear motor is easily scratched with the aluminum plate on the rail surface during the train operation and affects the safe operation of the railway.
  • the problem and can solve the problem that the existing winding coil lead-out structure cannot meet the insulation and sealing requirements.
  • the technical solution is a magnetic levitation linear motor, which includes a primary installed at the bottom of the magnetic levitation train car and a secondary laid on the surface of the rail, wherein the primary includes a stator core and several winding coils embedded in the stator core, the secondary is Several sections of aluminum plates that extend along the long direction and are laid on the surface of the rail in sequence are spliced.
  • the stator core includes a plurality of stator punches. After being laminated, the stator punches are firmly connected by locking bolts and locking nuts. : The two ends of the stator punch in the length direction are rounded or beveled, and the corresponding stator punches are laminated and fastened by locking bolts to form two ends of the stator core in the longitudinal direction. Both ends are the first circular arc end face or inclined end face.
  • an even number of grooves parallel to each other are arranged on the bottom surface of the stator punches, and the groove width and depth of each groove are equal.
  • the teeth are formed between adjacent grooves, and several stator punches are formed.
  • the grooves at the corresponding positions communicate with each other to form an even number of stator slots extending through the width direction on the bottom surface of the stator core, and the tooth portions at the corresponding positions overlap to form the stator teeth extending in the width direction, and several windings
  • the coils are sequentially embedded in the stator slots, and the slots of the stator slots of the stator core face the surface of the rail; both ends of the slots of the slots of the stator punch are rounded, so that the several stators After the punching sheets are laminated, the groove walls on both sides of each stator slot and the tooth crest surface of the stator teeth are smoothly connected by a second arc end surface.
  • the plurality of winding coils are provided with a lead wire
  • the lead wire includes a lead end wire
  • an outer periphery of the lead end wire has an insulation protection layer
  • the lead end wire and the lead out cable wire having an insulation protection layer are connected by a metal wire
  • the terminal is crimped, and the joint of the lead-out terminal wire and the metal terminal with an insulating protective layer, and the metal terminal and the cable lead-out wire is provided with an integral sealing and wrapping layer.
  • a heat shrinkable tube is provided on the outside of the sealing and wrapping layer.
  • the sealing and wrapping layer includes a glass fiber braid, the glass fiber braid is integrally wrapped around the outer periphery of the junction of the lead-out terminal wire and the metal terminal, and the metal terminal and the cable lead-out wire, and the surface of the fiberglass braid is full
  • the web is coated with sealant so that the sealant can fill all the gaps between the fiberglass braid and the lead-out wires, metal terminals and cable lead-out wires.
  • the metal terminal is a copper aluminum terminal.
  • a hanger is installed on the stator iron core, and the hanger includes a front clamping plate and a rear clamping plate, and the front clamping plate and the rear clamping plate are fixed to the stator iron through the locking bolt and the locking nut, respectively
  • the two sides of the core in the width direction are located above the stator slot, and a hanger support plate is fixed between the front and rear clamp plates, and the hanger support plate is respectively connected to the front and rear clamp plates Vertical setting.
  • a plurality of lead bearing plates are fixed on the outer surface of the front splint, the plurality of lead bearing plates are arranged in parallel and of equal height, and each lead bearing plate can be detachably installed with a lead A pressure plate, the lead wire is pressed against the lead bearing plate by the lead pressure plate.
  • the beneficial effect of the present invention lies in that both ends of the stator blades in the length direction of the bottom are rounded or beveled, so that several stator blades are stacked and fastened by locking bolts to form the bottom length direction of the stator core Both ends are the first arc end face or inclined end face.
  • the first arc end face or oblique end face can Gently slide over the tilted end and in the process can play a downward pressure on the tilted end, effectively avoiding the aluminum plate being scraped and lifted by the stator core to ensure the safety of railway operation;
  • the groove of the stator punch The corners of both ends are arc chamfered, so that after a number of stator punches are laminated, the slot walls on both sides of each stator slot and the tooth top surface of the stator teeth are smoothly connected through the second arc end surface, when the winding coil is removed from the slot
  • the second arc end faces on both sides can effectively prevent the slot end from scratching the long winding of the winding, and can also effectively guide the embedding of the winding coil, greatly improving the offline speed.
  • FIG. 1 is a schematic diagram of a top view of a primary structure of a magnetic suspension linear motor of the present invention
  • FIG. 2 is a schematic view of the enlarged structure of the right side of FIG. 1;
  • FIG. 3 is a schematic view of the three-dimensional structure of the stator core in the present invention.
  • FIG. 4 is a schematic structural view of the stator punching plate in the present invention.
  • FIG. 5 is an enlarged schematic view of A in FIG. 4;
  • FIG. 6 is a schematic diagram of the connection structure of the lead-out terminal and the cable lead-out line in the present invention.
  • FIG. 7 is a state diagram of the first circular arc end face of the bottom surface of the stator iron core in the present invention meets the tilted end of the aluminum plate on the rail surface;
  • FIG. 8 is a state diagram of the inclined ends of the bottom surface of the stator core on both sides of the stator core meeting the aluminum plate warped end of the rail surface;
  • the invention relates to a magnetic levitation linear motor, which includes a primary installed at the bottom of the magnetic levitation train compartment and a secondary laid on the surface of the rail, wherein the primary includes a stator core 1 and a plurality of winding coils 2 embedded in the stator core 1, the secondary is Several sections of aluminum plates 3 that extend along the long direction and are spliced on the surface of the rail in sequence, the stator core 1 includes a number of stator punches 4, and the stator punches 4 are laminated and fastened by locking bolts 5 and locking nuts 6, see Fig. 1, the length of both ends of the bottom of the stator punch 4 in the length direction is rounded 7, as shown in Fig.
  • Both ends of the direction are the first circular arc end face 8; when the magnetic suspension train is in operation, when the first circular arc end faces 8 at the two ends of the bottom surface of the stator core 1 meet the tilted end of the aluminum plate 3 on the rail surface, see Figure 7 ,
  • the first arc end face 8 can smoothly slide over the tipped end and can play a depressing effect on the tipped end in the process, thus effectively avoiding the aluminum plate 3 being lifted by the stator core to ensure the safety of railway operation .
  • stator blades 4 in the longitudinal direction of the bottom are beveled, a number of stator blades 4 are laminated and fastened by the locking bolts 5 to form the stator core 1 at both ends in the longitudinal direction It is the inclined end surface 30.
  • the inclined end surface 30 can also slide smoothly At the beginning and in the process, it can play a depressing effect on the tip.
  • Several winding coils 2 are provided with a lead-out wire 15 including a lead-out end wire 16 and a lead-out cable 18, as shown in FIG. 6, the outer periphery of the lead-out end wire 16 has an insulating protective layer 17, the lead-out end wire 16 with the insulating protective layer 17 and the lead-out cable
  • the wires 18 are crimped through the metal terminal 19, and the junction of the lead-out wire 16 with the insulating protective layer 17 and the metal terminal 19, the metal terminal 19 and the cable lead-out 18 is provided with an integrated sealing and wrapping layer 20;
  • a heat-shrinkable tube 21 is provided on the outside of the wrapping layer 20.
  • the sealing and wrapping layer 20 includes a fiberglass braid, which is wrapped around the outer periphery of the junction of the lead wire 16 and the metal terminal 19 and the metal terminal 19 and the cable lead wire 18, and the surface of the fiberglass braid is coated Cover the sealant so that the sealant can fill all the gaps between the fiberglass braid and the lead-out wire 16, the metal terminal 19 and the cable lead-out 18; preferably, the metal terminal 19 is a copper-aluminum terminal.
  • the lead wire structure of the present invention firstly perform an integral protective coating treatment such as immersion and baking on the primary winding of the magnetic levitation linear motor and its lead end wire 16 to form an insulating protective layer 17 on the outer periphery of the lead end wire 16, and then The lead wire 16 and the cable lead wire 18 with the insulating protective layer 17 are crimped with the two ends of the metal terminal 19 respectively, and then the outer periphery of the junction of the lead wire 16 and the metal terminal 19 after crimping, and the cable lead wire 18 Perform an overall insulation wrapping operation on the periphery of the junction with the metal terminal 19, and apply a full amount of sealant to the insulation wrapping to form an integral sealing wrap 20, and finally join the heat shrinkable tube 21 to the sealing wrap
  • the outer periphery of the layer 20 is sufficient.
  • the sealant uses 704 sealant.
  • the lead wire 16 and the primary winding to cause high temperature damage to the cable lead wire 18 during the overall insulation process, especially at high temperature baking; and the lead wire 16, metal terminal with an insulating protective layer 17 on the outer periphery 19 and the cable lead-out wire 18 after integral insulation wrapping and sealing and gluing treatment can form an integral sealing and wrapping layer 20 at the junction of the lead-out wire 16 and the cable lead-out wire 18, thereby ensuring the insulation and sealing performance of the joint;
  • the heat-shrinkable tube 21 sleeved on the outer periphery of the sealing and wrapping layer 20 can further effectively isolate the joint from the outside, further ensure the insulation and sealing performance of the joint, and make the appearance of the joint section of the lead-out wire 16 and the cable lead-out wire 18 More neat and beautiful.
  • All of the isosceles triangle structures with several winding coils 2 exposed at one end of the stator core 1 are bent toward the side of the train car as a whole, and the bending angle ⁇ ranges from 0° to 80°.
  • a hanger is installed on the stator core 1, and the hanger includes a front clamping plate 22 and a rear clamping plate 23.
  • the front clamping plate 22 and the rear clamping plate 23 are fixed to the width direction of the stator core 1 by locking bolts 5 and locking nuts 6 respectively.
  • a hanger support plate 24 is also fixed between the front clamp plate 22 and the rear clamp plate 23, and the hanger support plate 24 is perpendicular to the front clamp plate 22 and the rear clamp plate 23;
  • the installation can open the entire primary suspension of the magnetic levitation linear motor, and the installation of the hanger support plate 24 can greatly improve the overall rigidity of the entire hanger and ensure the stable and reliable lifting of the entire primary magnetic levitation linear motor.
  • a plurality of lead support plates 25 are fixed on the outer surface of the front clamping plate 22.
  • four lead support plates 25 are provided.
  • the four lead support plates 25 are arranged in parallel and at the same height.
  • Each lead support plate 25 A lead pressure plate 26 is detachably mounted on the 25, and the lead wire 15 is pressed against the lead support plate 25 by the lead pressure plate 26, so that the lead support plate 25 and the lead pressure plate 26 can effectively carry the lead wire 15 And fixed effect.

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Electromagnetism (AREA)
  • Linear Motors (AREA)

Abstract

一种磁悬浮直线电机，其能解决现有磁悬浮直线电机在列车运行过程中初级的定子铁芯易与路轨表面的铝板翘起端发生刮蹭而影响铁路安全运行的问题。该电机包括安装于磁悬浮列车车厢底部的初级与铺设于路轨表面的次级，其中初级包括定子铁芯（1）和嵌于定子铁芯（1）的若干绕组线圈（2），次级为沿长方向延伸并依次拼接铺设于路轨表面的若干段铝板（3），所述定子铁芯（1）包括若干定子冲片（4），所述若干定子冲片（4）层叠后通过锁紧螺栓（5）及锁紧螺母（6）紧固连接，所述定子冲片（4）的底部长度方向的两端角均为圆角或斜角，若干所述定子冲片（4）层叠并通过锁紧螺栓（5）紧固后形成的定子铁芯（1）的底部长度方向的两端均为第一圆弧端面（8）或斜端面（30）。

Description

一种磁悬浮直线电机 技术领域
本发明涉及直线电机领域，尤其是涉及应用于磁悬浮列车的直线电机领域，具体为一种磁悬浮直线电机。
背景技术
磁悬浮直线电机是磁悬浮列车的重要驱动装置，其主要包括安装于列车车厢底部的初级以及铺设于路轨表面的次级，其中初级包括定子铁芯和嵌于定子铁芯绕组线圈，次级为沿长方向延伸并依次拼接铺设于路轨表面的若干段铝板，列车长期运行后受外力等因素的影响路轨表面的铝板在拼接处往往会不可避免地产生翘起，而磁悬浮列车在运行过程中的受地势起伏、路轨平整度、列车载重量变化等因素会造成列车与路轨之间的间隙距离发生变化，从而导致初级的定子铁芯与翘起的铝板发生直接刮蹭，严重时铝板会被定子铁芯掀离路轨表面，破坏轨道，并影响铁路的安全运行；而现有的定子铁芯的定子槽的槽口两端角多为直角或尖角形，当绕组线圈嵌入到定子槽内时直角形或尖角形端角往往会划伤绕组线圈表面，从而影响电机性能；另外，现有的磁悬浮直线电机初级引出线是将绕组线圈的接头与电缆引线通过金属端子压接连接后直接进行浸漆烘烤处理，从而完成引出线的绝缘密封，由于目前应用于磁悬浮列车的磁悬浮直线电机的绝缘等级需要满足C级要求，这就使得浸渍漆与防护胶的烘烤温度达到180℃，但是现有的电缆引线的外部橡胶层能承受最高烘烤温度为120℃，故若磁悬浮直线电机的引出线绝缘结构采用传统电机上述传统结构，则电缆引线往往会出现严重的老化现象(龟裂、变色、失去光泽和弹性变差等现象)，无法满足绝缘密封要求，严重时影响整个电机的输出性能。
发明内容
针对上述问题，本发明提供了一种磁悬浮直线电机，其能解决现有磁悬浮直线电机在列车运行过程中初级的定子铁芯易与路轨表面的铝板翘起端发生刮蹭而影响铁路安全运行的问题，并能解决现有的绕组线圈引出线结构无法满足绝缘密封要求有问题。
其技术方案为，一种磁悬浮直线电机，其包括安装于磁悬浮列车车厢底部的初级与铺设于路轨表面的次级，其中初级包括定子铁芯和嵌于定子铁芯的若干绕组线圈，次级为沿长方向延伸并依次拼接铺设于路轨表面的若干段铝板，所述定子铁芯包括若干定子冲片，所述若干定子冲片层叠后通过锁紧螺栓及锁紧螺母紧固连接，其特征在于：所述定子冲片的底部长度方向的两端角均为圆角或斜角，相应的若干所述定子冲片层叠并通过锁紧螺栓紧固后形成的定子铁芯的底部长度方向的两端均为第一圆弧端面或斜端面。
进一步的，所述定子冲片的底面均布开设有偶数条相互平行的凹槽，且各条凹槽的槽宽、槽深均相等，相邻的凹槽之间形成齿部，若干定子冲片层叠后相对应位置上的凹槽联通从而在定子铁芯的底面形成偶数条沿宽度方向贯通延伸的定子槽、相对应位置上的齿部叠合形成沿宽度方向延伸的定子齿，若干绕组线圈依次嵌入于定子槽内，所述定子铁芯的定子槽的槽口朝向路轨表面；所述定子冲片的凹槽的槽口的两端角均为圆弧倒角，从而所述若干定子冲片层叠后每条定子槽的两侧槽壁与定子齿的齿顶面之间均通过第二圆弧端面光滑连接。
进一步的，所述若干绕组线圈设有引出线，所述引出线包括引出端线，所述引出端线的外周具有绝缘防护层，具有绝缘防护层的所述引出端线与引出电缆线之间通过金属接线端子压接，并且具有绝缘防护层的所述引出端线与金属接线端子、金属接线端子与电缆引出线的接合处设有整体的密封包扎层。
进一步的，所述密封包扎层的外部设有热收缩管。
进一步的，所述密封包扎层包括玻璃纤维编织带，所述玻璃纤维编织带整体绕包引出端线与金属接线端子、金属接线端子与电缆引出线的接合处外周，所述玻璃纤维编织带表面满幅涂覆密封胶，使得密封胶能填充满玻璃纤维编织带与引出端线、金属接线端子以及电缆引出线之间的所有空隙。
进一步的，所述金属接线端子为铜铝接线端子。
进一步的，若干所述绕组线圈外露于所述定子铁芯的一端的等腰三角形结构均整体朝向列车车厢的一侧折弯，且折弯的角度α的范围为0°～80°。
进一步的，所述定子铁芯上安装有吊架，所述吊架包括前夹板和后夹板，所述前夹板、后夹板分别通过所述锁紧螺栓及锁紧螺母固装于所述定子铁芯的宽度方向的两侧面上并位于所述定子槽的上方，所述前夹板与后夹板之间还固设有吊架支撑板，所述吊架支撑板分别与所述前夹板、后夹板垂直设置。
进一步的，所述前夹板的外侧面上固设有数个引线承托板，所述数个引线承托板平行且等高设置，每个所述引线承托板上均可拆卸地安装有一引线压板，所述引出线由所述引线压板压紧于所述引线承托板上。
本发明的有益效果在于：其定子冲片的底部长度方向的两端角均为圆角或斜角，从而若干定子冲片层叠并通过锁紧螺栓紧固后形成的定子铁芯的底部长度方向的两端均为第一圆弧端面或斜端面，当磁悬浮列车在运行过程中当定子铁芯的底面端部遇到路轨表面的铝板翘起端时，该第一圆弧端面或斜端面能够平缓地滑过翘起端且在此过程中能够对翘起端起到一个下压作用，有效避免铝板被定子铁芯刮蹭掀起，确保铁路运行安全；定子冲片的凹槽的槽口的两端角均为圆弧倒角，从而若干定子冲片层叠后每条定子槽的两侧槽壁与定子齿的齿顶面 之间均通过第二圆弧端面光滑连接，当绕组线圈从槽口嵌入到定子槽内时，两侧的第二圆弧端面既能有效避免槽口端部对绕组长线圈的刮蹭，又能够对绕组线圈的嵌入起到有效的导向作用，大大提高下线速度。
附图说明
图1为本发明一种磁悬浮直线电机初级的俯视结构示意图；
图2为图1的右视放大结构示意图；
图3为本发明中定子铁芯的立体结构示意图；
图4为本发明中定子冲片的结构示意图；
图5为图4中的A处放大示意图；
图6为本发明中引出端线与电缆引出线的连接结构示意图；
图7为本发明中定子铁芯的底面的第一圆弧端面遇到路轨表面的铝板翘起端的状态图；
图8为本发明中定子铁芯的底面两侧的斜端面遇到路轨表面的铝板翘起端的状态图；。
附图标记：1-定子铁芯，2-绕组线圈，3-铝板，4-定子冲片，5-锁紧螺栓，6-锁紧螺母，7-圆角，8-第一圆弧端面，9-凹槽，10-齿部，11-定子槽，12-定子齿，13-圆弧倒角，14-第二圆弧端面，15-引出线，16-引出端线，17-绝缘防护层，18-引出电缆线，19-金属接线端子，20-密封包扎层，21-热收缩管，22-前夹板，23-后夹板，24-吊架支撑板，25-引线承托板，26-引线压板，27-槽壁，28-齿顶面，29-锥形缺口，30-斜端面。
具体实施方式
本发明一种磁悬浮直线电机，其包括安装于磁悬浮列车车厢底部的初级与铺设于路轨表面的次级，其中初级包括定子铁芯1和嵌于定子铁芯1的若干绕组线圈2，次级为沿长方向延伸并依次拼接铺设于路轨表面的若干段铝板3，定子铁芯1包括若干定子冲片4，若干定子冲片4层叠后通过锁紧螺栓5及锁紧螺母6紧固连接，见图1，定子冲片4的底部长度方向的两端角均为圆角7，见图4，从而若干定子冲片4层叠并通过锁紧螺栓5紧固后形成的定子铁芯1的底部长度方向的两端均为第一圆弧端面8；磁悬浮列车在运行过程中当定子铁芯1的底面两端部第一圆弧端面8遇到路轨表面的铝板3翘起端时，见图7，第一圆弧端面8遇能够平缓地滑过翘起端且在此过程中能够对翘起端起到一个下压作用，从而有效避免铝板3被定子铁芯刮蹭掀起，确保铁路运行安全。同样的，当定子冲片4的底部长度方向的两端角均为斜角时若干定子冲片4层叠并通过锁紧螺栓5紧固后形成的定子铁芯1的底部长度方向的两端均为斜端面30，磁悬浮列车在运行过程中当定子铁芯1的底面两端部斜端面30遇到路轨表面的铝板3翘起端时，见图8，斜端面30亦能够平缓地滑过翘起端且在此过程中能够对翘起端起到一个下压作用。
定子冲片4的底面均布开设有偶数条相互平行的凹槽9，且各条凹槽9的槽宽、槽深均相等，相邻的凹槽9之间形成齿部10，若干定子冲片4层叠后相对应位置上的凹槽9联通从而在定子铁芯1的底面形成偶数条沿宽度方向D贯通延伸的定子槽11、相对应位置上的齿部10叠合形成沿宽度方向D延伸的定子齿12，若干绕组线圈2依次嵌入于定子槽11内，定子铁芯1的定子槽11的槽口朝向路轨表面；定子冲片4的凹槽9的槽口的两端角均为圆弧倒角13，从而若干定子冲片4层叠后每条定子槽的两侧槽壁27与定子齿12的齿顶面28之间均通过第二圆弧端面14光滑连接。29为定子冲片4的每个齿部10两侧靠近齿顶面28一侧开设的锥形凹槽。图3中，L为定子铁芯1的长度方向。
若干绕组线圈2设有引出线15，引出线15包括引出端线16和引出电缆线18，见图6，引出端线16的外周具有绝缘防护层17，具有绝缘防护层17的引出端线16与引出电缆线18之间通过金属接线端子19压接，并且具有绝缘防护层17的引出端线16与金属接线端子19、金属接线端子19与电缆引出线18的接合处设有整体的密封包扎层20；密封包扎层20的外部设有热收缩管21。其中，密封包扎层20包括玻璃纤维编织带，玻璃纤维编织带整体绕包引出端线16与金属接线端子19、金属接线端子19与电缆引出线18的接合处外周，玻璃纤维编织带表面满幅涂覆密封胶，使得密封胶能填充满玻璃纤维编织带与引出端线16、金属接线端子19以及电缆引出线18之间的所有空隙；优选的，金属接线端子19为铜铝接线端子。
加工本发明的上述引出线结构，先对磁悬浮直线电机的初级绕组及其引出端线16进行整体的浸漆及烘烤等绝缘防护处理，从而在引出端线16的外周形成绝缘防护层17，然后将具有绝缘防护层17的引出端线16与电缆引出线18分别与金属接线端子19的两端压接，再在压接后的引出端线16与金属接线端子19的接合处外周、以及电缆引出线18与金属接线端子19的接合处外周进行整体的绝缘绕包作业，并在绝缘绕包处满幅涂覆密封胶，从而形成整体的密封包扎层20，最后再将热收缩管21接合于密封包扎层20的外周即可。密封胶采用704密封胶。由此，引出端线16与初级绕组在进行整体的绝缘处理过程中尤其是高温烘烤时不可能会对电缆引出线18产生高温伤害；而外周具有绝缘防护层17的引出端线16、金属接线端子19以及电缆引出线18进行整体的绝缘绕包以及密封涂胶处理后能够在引出端线16与电缆引出线18的接合处形成整体的密封包扎层20，从而确保接合处的绝缘密封性能；而在密封包扎层20的外周套接的热收缩管21，能够将接合处与外界进行进一步有效的隔离，更加保证接合处的绝缘密封性能，并使得引出端线16与电缆引出线18的接合段的外观更加整齐美观。
若干绕组线圈2外露于定子铁芯1的一端的等腰三角形结构均整体朝向列车车厢的一侧折弯，且折弯的角度α的范围为0°～80°。
定子铁芯1上安装有吊架，吊架包括前夹板22和后夹板23，前夹板22、后夹板23分别通过锁紧螺栓5及锁紧螺母6固装于定子铁芯1的宽度方向的两侧面上并位于定子槽11的上方，前夹板22与后夹板23之间还固设有吊架支撑板24，吊架支撑板24分别与前夹板22、后夹板23垂直设置；吊架的设置能够便开整个磁悬浮直线电机初级的起吊安装，而吊架支撑板24的设置能够大大提高整个吊架的整体刚性，保证整个磁悬浮直线电机初级的稳定可靠起吊。
前夹板22的外侧面上固设有数个引线承托板25，本实施例中引线承托板25设有四个，四个引线承托板25平行且等高设置，每个引线承托板25上均可拆卸地安装有一引线压板26，引出线15由引线压板26压紧于引线承托板25上，由此引线承托板25与引线压板26能够对引出线15起到有效的承载及固定作用。
以上对本发明的具体实施进行了详细说明，但内容仅为本发明创造的较佳实施方案，不能被认为用于限定本发明创造的实施范围。凡依本发明创造申请范围所作的均等变化与改进等，均应仍归属于本发明的专利涵盖范围之内。

Claims (9)

  1. 一种磁悬浮直线电机，其包括安装于磁悬浮列车车厢底部的初级与铺设于路轨表面的次级，其中初级包括定子铁芯和嵌于定子铁芯的若干绕组线圈，次级为沿长方向延伸并依次拼接铺设于路轨表面的若干段铝板，所述定子铁芯包括若干定子冲片，所述若干定子冲片层叠后通过锁紧螺栓及锁紧螺母紧固连接，其特征在于：所述定子冲片的底部长度方向的两端角均为圆角或斜角，相应的若干所述定子冲片层叠并通过锁紧螺栓紧固后形成的定子铁芯的底部长度方向的两端均为第一圆弧端面或为斜端面。
  2. 根据权利要求1所述的一种磁悬浮直线电机，其特征在于：所述定子冲片的底面均布开设有偶数条相互平行的凹槽，且各条凹槽的槽宽、槽深均相等，相邻的凹槽之间形成齿部，若干定子冲片层叠后相对应位置上的凹槽联通从而在定子铁芯的底面形成偶数条沿宽度方向贯通延伸的定子槽、相对应位置上的齿部叠合形成沿宽度方向延伸的定子齿，若干绕组线圈依次嵌入于定子槽内，所述定子铁芯的定子槽的槽口朝向路轨表面；所述定子冲片的凹槽的槽口的两端角均为圆弧倒角，从而所述若干定子冲片层叠后每条定子槽的两侧槽壁与定子齿的齿顶面之间均通过第二圆弧端面光滑连接。
  3. 根据权利要求1或2所述的一种磁悬浮直线电机，其特征在于：所述若干绕组线圈设有引出线，所述引出线包括引出端线，所述引出端线的外周具有绝缘防护层，具有绝缘防护层的所述引出端线与引出电缆线之间通过金属接线端子压接，并且具有绝缘防护层的所述引出端线与金属接线端子、金属接线端子与电缆引出线的接合处设有整体的密封包扎层。
  4. 根据权利要求3所述的一种磁悬浮直线电机，其特征在于：所述密封包扎层的外部设有热收缩管。
  5. 根据权利要求4所述的一种磁悬浮直线电机，其特征在于：所述密封包扎层包括玻璃纤维编织带，所述玻璃纤维编织带整体绕包引出端线与金属接线端子、金属接线端子与电缆引出线的接合处外周，所述玻璃纤维编织带表面满幅涂覆密封胶，使得密封胶能填充满玻璃纤维编织带与引出端线、金属接线端子以及电缆引出线之间的所有空隙。
  6. 根据权利要求4或5所述的一种磁悬浮直线电机，其特征在于：所述金属接线端子为铜铝接线端子。
  7. 根据权利要求6所述的一种磁悬浮直线电机，其特征在于：若干所述绕组线圈外露于所述定子铁芯的一端的等腰三角形结构均整体朝向列车车厢的一侧折弯，且折弯的角度α的范围为0°～80°。
  8. 根据权利要求7所述的一种磁悬浮直线电机，其特征在于：所述定子铁芯上安装有吊架，所述吊架包括前夹板和后夹板，所述前夹板、后夹板分别通过所述锁紧螺栓及锁紧螺母固装于所述定子铁芯的宽度方向的两侧面上并位于所述定子槽的上方，所述前夹板与后夹板之间 还固设有吊架支撑板，所述吊架支撑板分别与所述前夹板、后夹板垂直设置。
  9. 根据权利要求8所述的一种磁悬浮直线电机，其特征在于：所述前夹板的外侧面上固设有数个引线承托板，所述数个引线承托板平行且等高设置，每个所述引线承托板上均可拆卸地安装有一引线压板，所述引出线由所述引线压板压紧于所述引线承托板上。
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