WO2024082444A1 - Traction motor - Google Patents
Traction motor Download PDFInfo
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- WO2024082444A1 WO2024082444A1 PCT/CN2022/143024 CN2022143024W WO2024082444A1 WO 2024082444 A1 WO2024082444 A1 WO 2024082444A1 CN 2022143024 W CN2022143024 W CN 2022143024W WO 2024082444 A1 WO2024082444 A1 WO 2024082444A1
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- WIPO (PCT)
- Prior art keywords
- lead
- lead head
- head
- ring
- coil nose
- Prior art date
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- 239000010949 copper Substances 0.000 claims description 27
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 26
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- 229910000831 Steel Inorganic materials 0.000 claims description 6
- 239000010959 steel Substances 0.000 claims description 6
- 230000000149 penetrating effect Effects 0.000 claims description 2
- 230000002093 peripheral effect Effects 0.000 claims 1
- 238000005452 bending Methods 0.000 abstract description 6
- 238000009413 insulation Methods 0.000 abstract description 6
- 238000010586 diagram Methods 0.000 description 10
- 238000000034 method Methods 0.000 description 7
- 238000009434 installation Methods 0.000 description 5
- 101001121408 Homo sapiens L-amino-acid oxidase Proteins 0.000 description 4
- 102100026388 L-amino-acid oxidase Human genes 0.000 description 4
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- 101000827703 Homo sapiens Polyphosphoinositide phosphatase Proteins 0.000 description 2
- 102100023591 Polyphosphoinositide phosphatase Human genes 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
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- 101100012902 Saccharomyces cerevisiae (strain ATCC 204508 / S288c) FIG2 gene Proteins 0.000 description 1
- 101100233916 Saccharomyces cerevisiae (strain ATCC 204508 / S288c) KAR5 gene Proteins 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
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Classifications
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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
- H02K3/50—Fastening of winding heads, equalising connectors, or connections thereto
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- 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 present application relates to the field of motors, and in particular to a traction motor.
- the purpose of the present application is to provide a traction motor which can improve the parallel structure of the stator lead wires and enhance the structural quality and assembly characteristics of the aforementioned parallel structure.
- the present application provides a traction motor, including a stator lead and a conductive ring;
- the stator lead has a coil nose, a first lead and a second lead;
- the coil nose protrudes from the edge to the center, the first lead head of the first lead is passed through the center of the coil nose and led outward, and the second lead head of the second lead is passed through the edge of the coil nose and led outward;
- the first lead head outside the coil nose extends straight, and the second lead head outside the coil nose is bent toward the first lead head and close together, and the multiple ring bodies of the conductive ring are arranged on the surrounding sides of the first lead head and the second lead head that are close together.
- all the ring bodies of the same conductive ring include a U ring, a V ring, a W ring and a neutral ring; all the ring bodies of the same conductive ring are grouped in pairs and are arranged on two opposite sides of the first lead head and the second lead head that are placed side by side.
- the first lead head is offset relative to the central axis of the coil nose in a direction away from the second lead head; two ring bodies of the same conductive ring are adjacent to the first lead head and arranged axially along the coil nose, and the other two ring bodies are adjacent to the second lead head and arranged radially along the coil nose.
- any stator lead further includes a binding portion for integrally binding the first lead head, the second lead head, and the conductive ring.
- a junction box is also included;
- the stator lead includes a first lead segment and a second lead segment; the coil nose, the first lead head and the second lead head are all arranged on the first lead segment, and the second lead segment includes a copper busbar connected to the junction box.
- the copper busbar is provided with at least two mounting holes and a first fastener penetrating the mounting holes and tightened to the junction box.
- the junction box is specifically a non-magnetic steel junction box having an L-shaped cavity; the copper busbar is disposed at a corner of the L-shaped cavity and is bent along the corner.
- the junction box also includes a cable connected to the copper busbar;
- the junction box includes clamps distributed in pairs, pads distributed in pairs and arranged between a pair of clamps, a junction box bracket arranged between the pair of pads, and a second fastener for locking the pair of clamps; any clamp is provided with an open groove for the cable to be laterally embedded, and the openings of the open grooves of a pair of clamps face each other and are both toward the pad.
- the open groove is specifically a U-shaped groove;
- the second fastener is a countersunk threaded member provided between any one clamping plate and the backing plate, and the countersunk threaded members provided on the two clamping plates are staggered.
- it also includes a wiring terminal arranged between the copper busbar and the cable; the wiring terminal is sleeved with the cable and connected to the copper busbar; the wiring terminal has a step surface for clamping with the junction box; and multiple wiring terminals arranged on multiple cables are distributed opposite to each other in pairs.
- the traction motor provided in the present application includes a stator lead and a conductive ring;
- the stator lead has a coil nose, a first lead and a second lead;
- the coil nose protrudes from the edge to the center, the first lead head of the first lead is passed through the center of the coil nose and led outward, and the second lead head of the second lead is passed through the edge of the coil nose and led outward;
- the first lead head outside the coil nose extends straight, and the second lead head outside the coil nose is bent toward the first lead head and close together, and the multiple ring bodies of the conductive ring are arranged on the surrounding sides of the first lead head and the second lead head that are close together.
- the traction motor provided by the present application allows the first lead head to be led out from the center of the coil nose and the second lead head to be led out from the edge of the coil nose.
- the second lead head is bent toward the first lead head while the first lead head is not bent, which can reduce the bending degree of the first lead head and the second lead head and reduce the risk of lead insulation damage.
- the aforementioned parallel head structure of the first lead and the second lead can leave space for the installation of the conductive ring around the middle of the coil nose, so that the entire ring body of the conductive ring neatly and orderly surrounds the first lead head and the second lead head, making full use of the space where the coil nose is located, improving the structural compactness and stability of multiple components, and is suitable for motors with compact structures.
- FIG1 is a schematic diagram of the partial structure of a traction motor provided by an embodiment of the present application at a first lead head, a second lead head and a conductive ring;
- FIG2 is a schematic diagram of the partial structure of the traction motor at the copper busbar and the junction box provided in an embodiment of the present application;
- FIG3 is a schematic diagram of a partial structure of a traction motor at a cable and a junction box provided in an embodiment of the present application;
- FIG4 is a schematic diagram of the assembly of the clamping plate, the backing plate, the second fastener and the cable provided in the embodiment of the present application;
- FIG5 is a front view of FIG4
- FIG. 6 is a schematic diagram of the assembly of the cable and the terminal block provided in an embodiment of the present application.
- Figure 1 is a schematic diagram of the local structure of the traction motor provided in an embodiment of the present application at the first lead head, the second lead head and the conductive ring
- Figure 2 is a schematic diagram of the local structure of the traction motor provided in an embodiment of the present application at the copper bus and the junction box
- Figure 3 is a schematic diagram of the local structure of the traction motor provided in an embodiment of the present application at the cable and the junction box
- Figure 4 is an assembly schematic diagram of the splint, pad, second fastener and cable provided in an embodiment of the present application
- Figure 5 is a front view of Figure 4
- Figure 6 is an assembly schematic diagram of the cable and terminal provided in an embodiment of the present application.
- the present application provides a traction motor, including a stator lead and a conductive ring 1; in the traction motor, the stator lead includes a coil nose 21, a first lead 22 and a second lead 23.
- the coil nose 21 protrudes from the edge to the center
- the first lead 22 has a first lead head 221
- the first lead head 221 is passed through the center of the coil nose 21 and led outward
- the second lead 23 has a second lead head 231, the second lead head 231 is passed through the edge of the coil nose 21 and led outward.
- the first lead head 221 and the second lead head 231 are both led out from the inside of the coil nose 21 to the outside of the coil nose 21. It can be seen that part of the first lead head 221 is located inside the coil nose 21, part of the first lead head 221 is located outside the coil nose 21, part of the second lead head 231 is located inside the coil nose 21, and part of the second lead head 231 is located outside the coil nose 21. Among them, the first lead head 221 located outside the coil nose 21 extends straight, and the second lead head 231 located outside the coil nose 21 is bent toward the first lead head 221 and close together.
- the conductive ring 1 has a plurality of ring bodies, and all the ring bodies of the conductive ring 1 are arranged on the surrounding sides of the first lead head 221 and the second lead head 231 that are close together.
- the traction motor optimizes the relative position relationship among the first lead head 221, the second lead head 231 and the coil nose 21, so that the first lead head 221 and the second lead head 231 are both close to and merged toward the middle of the coil nose 21.
- the bending degree of the first lead head 221 and the second lead head 231 can be reduced, specifically, only the second lead head 231 is bent and close to the first lead head 221 without bending the first lead head 221.
- the traction motor provided in the present application reduces the risk of lead insulation damage by reducing the degree of bending of the first and second lead heads, and reasonably arranges the first and second lead heads and the conductive ring 1 to fully utilize the space where the coil nose 21 is located, thereby improving the structural compactness and stability of multiple components, and is suitable for a compact motor.
- the entire ring body of the conductive ring 1 may include a U ring 11, a V ring 12, a W ring 13 and a neutral ring 14; wherein the U ring 11, the V ring 12 and the W ring 13 correspond to the three phases of the motor respectively.
- the U ring 11, the V ring 12, the W ring 13 and the neutral ring 14 of the conductive ring 1 are grouped in pairs and arranged on two opposite sides of the first lead head 221 and the second lead head 231 that are placed side by side.
- the U ring 11 and the V ring 12 of the conductive ring 1 are in the same group, and the W ring 13 and the neutral ring 14 of the conductive ring 1 are in the same group.
- the U ring 11 and the V ring 12 are on the same side of the first and second lead heads that are placed side by side
- the W ring 13 and the neutral ring 14 are on the same side of the first and second lead heads that are placed side by side
- the U ring 11 and the W ring 13 are on the opposite sides of the first and second lead heads that are placed side by side, respectively.
- part of the first lead head 221 and part of the second lead head 231 extend out of the coil nose 21 and are close to the middle part of the coil nose 21, and the middle part of the coil nose 21 is raised relative to the edge of the coil nose 21. Therefore, a larger space is left at the edge of the coil nose 21, which can reasonably and effectively position and install the U-ring 11, V-ring 12, W-ring 13 and neutral ring 14.
- the first lead head 221 is led out from the middle of the coil nose 21 but slightly deviates from the central axis of the coil nose 21.
- the first lead head 221 is biased in a direction away from the second lead head 231.
- the coil nose 21 is divided into three parts: upper, middle, and lower parts.
- the second lead head 231 is led out from the upper part of the coil nose 21 and bent toward the middle part of the coil nose 21.
- the first lead head 221 is led out directly from the middle part of the coil nose 21, wherein the first lead head 221 is located at a lower position in the middle part of the coil nose 21.
- the upper part of the coil nose 21 has a relatively smaller axial space and a relatively larger radial space. Therefore, two of the ring bodies of the conductive ring 1 can be radially arranged side by side at the upper part of the coil nose 21; as for the lower part of the coil nose 21, since the first lead head 221 extends straight, although the radial space is smaller, the axial space is relatively larger. The other two ring bodies of the conductive ring 1 can be axially arranged side by side at the lower part of the coil nose 21. At the same time, the first lead head 221 is not bent, which can also reduce the extrusion with the coil nose 21.
- two ring bodies are adjacent to the first lead head 221 and are arranged along the axial direction of the coil nose 21, and the other two ring bodies are adjacent to the second lead head 231 and are arranged along the radial direction of the coil nose 21.
- the stator lead may also include a binding portion 3 for binding the first lead head 221, the second lead head 231 and the conductive ring 1, as shown in FIG1.
- the binding portion 3 may be used to wrap and bind the first lead head 221, the second lead head 231 and the entire ring body of the conductive ring 1, so that the first lead head 221, the second lead head 231 and the entire ring body of the conductive ring 1 form a stable and unified whole, thereby improving vibration resistance and environmental adaptability.
- some parts may be bound separately and then all parts may be bound.
- the traction motor provided in the present application further includes a junction box 4;
- the stator lead in the traction motor, the stator lead includes a first lead segment and a second lead segment distributed along the length direction thereof, for example, the stator lead is divided into two along its length direction, one segment of the stator lead is the first lead segment, and the other segment of the stator lead is the second lead segment;
- the aforementioned first lead segment is provided with a coil nose 21, a first lead head 221 and a second lead head 231, and it can be seen that the first lead segment is used for assembly with the conductive ring 1;
- the aforementioned second lead segment is used for connection with the junction box 4.
- the second lead segment can be connected to the junction box 4 through a copper bus 232, for example, the first lead 22 and the second lead 23 of the second lead segment are directly processed by the copper bus 232, and there is no need to additionally weld lead joints to the first lead 22 and the second lead 23 of the second lead segment, so that the space of the junction box 4 can be fully utilized.
- the copper busbar 232 is provided with at least two mounting holes 2321 and first fasteners respectively passing through each mounting hole 2321, and the first fasteners provided in the mounting holes 2321 are used to lock the copper busbar 232 and the junction box 4.
- the junction box 4 used in the present application is specifically a non-magnetic steel junction box 4, and the non-magnetic steel junction box 4 has an L-shaped cavity inside.
- the copper busbar 232 and the non-magnetic steel junction box 4 are assembled, the copper busbar 232 can be arranged at the corner of the L-shaped cavity and bent along the corner, as shown in Figure 2. This example can avoid the eddy current effect generated by large current and improve the operating performance of the motor.
- the traction motor provided in the present application also includes a cable 5 connected to the copper bus 232.
- the junction box 4 may include clamps 41 distributed in pairs, pads 42 distributed in pairs and arranged between a pair of clamps 41, a junction box bracket 44 arranged between a pair of pads 42, and a second fastener 43 for locking the pair of clamps 41; wherein any one of the clamps 41 is provided with an open groove 411, and the openings of the open grooves 411 of a pair of clamps 41 face each other and are both toward the pad 42.
- the cable 5 is inserted into the opening groove 411 of any clamping plate 41 along the radial direction of the guide, so that the cable 5 is inserted into the opening groove 411 laterally; then, the two pads 42 and the two clamping plates 41 are pressed against the two opposite sides of the junction box bracket 44 from the inside to the outside in turn, at which time, the two pads 42 are pressed against the two opposite sides of the junction box bracket 44, and the two clamping plates 41 are pressed against the two opposite sides of the aforementioned two pads 42, and at the same time, the two clamping plates 41 can be locked and fixed by fasteners, so that the two clamping plates 41 firmly clamp the two pads 42 and the junction box bracket 44 therein, thereby clamping the cable 5.
- a clamping plate 41 can be provided with multiple opening grooves 411 for clamping multiple cables 5 respectively, for example, a clamping plate 41 can be provided with three opening grooves 411, and the six opening grooves 411 of the two clamping plates 41 can be used to clamp six cables 5 respectively.
- a pair of clamping plates 41 have the same structure, and the opening slots 411 provided on the clamping plates 41 can be adapted to cables 5 of different shapes and sizes, thereby reducing the number of types of clamps for the cable 5 and the cost of making molds.
- the opening groove 411 can be specifically set as a U-shaped groove; at the same time, a countersunk screw is provided between the backing plate 42 and any one of the clamping plates 41.
- the countersunk screw is used to lock a pair of clamping plates 41.
- the countersunk screw provided on one of the clamping plates 41 penetrates and locks the backing plate 42 and the clamping plate 41, and the multiple countersunk screws provided on the two clamping plates 41 can fix both clamping plates 41 to the backing plate 42.
- the countersunk screws provided on the two clamping plates 41 are staggered.
- the traction motor further includes a terminal 6 disposed between the copper busbar 232 and the cable 5; referring to FIG6 , the terminal 6 is sleeved on the end of the cable 5 and connected to the copper busbar 232, and the terminal 6 has a step surface that is engaged with the junction box.
- the terminal 6 with a step surface can be molded from a copper tube with a step.
- a traction motor is provided with a plurality of cables 5. As shown in FIG6 , six cables 5 are installed in the traction motor. The six cables 5 can be arranged opposite to each other in pairs and close to each other, thus saving wiring space in the junction box.
- the traction motor provided in the present application is designed with a new parallel head structure for the first lead segment of the stator lead, which can effectively avoid damage to the insulation layer of the lead head.
- the winding part 3 is used to bind the conductive ring 1 and the parallel head structure as a whole to achieve structural integration, thereby improving the vibration resistance of the stator and the structural compactness of the motor;
- the traction motor provided in the present application divides the stator lead into a first lead segment and a second lead segment, and the structural forms of the first and second lead segments are designed respectively according to different installation requirements at both ends of the stator lead along the length direction, which is convenient to install and reliable to connect;
- the junction box 4 connected to the second lead segment adopts non-magnetic steel to reduce eddy current effect.
- the junction box 4 adopts a clamping plate 41 and a pad 42 to lock the cable 5, which is easy to operate and reduces costs.
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Abstract
A traction motor, comprising a stator lead and a conductive ring. The stator lead is provided with a coil nose part, a first lead, and a second lead; the coil nose part protrudes from the edge to the center, a first lead head of the first lead penetrates through the center of the coil nose part and is led out outwards, and a second lead head of the second lead penetrates through the edge of the coil nose part and is led out outwards; the first lead head located outside the coil nose part extends straightly, the second lead head located outside the coil nose part is bent towards the first lead head and the second lead head and the first lead head are arranged side by side, and a plurality of ring bodies of the conductive ring are respectively arranged on the periphery of the first lead head and the second lead head which are arranged side by side. According to the traction motor, the bending degree of the first and second lead heads is reduced by adjusting the relative position relationship among the first lead head, the second lead head, and the coil nose part, the risk of lead insulation damage is reduced, a sufficient space for mounting the conductive ring is reserved around the coil nose part, and the structural compactness and stability of a plurality of parts are improved; such a configuration is suitable for motors having compact structures.
Description
本申请要求于2022年10月17日提交中国专利局、申请号为202222735336.5、实用新型名称为“一种牵引电机”的中国专利申请的优先权,其全部内容通过引用结合在本申请中。This application claims the priority of the Chinese patent application filed with the China Patent Office on October 17, 2022, with application number 202222735336.5 and utility model name “A traction motor”, the entire contents of which are incorporated by reference in this application.
本申请涉及电机领域,尤其涉及一种牵引电机。The present application relates to the field of motors, and in particular to a traction motor.
随着轨道交通的高速发展,牵引电机电压等级也越来越多。低电压、大电流电机应运而生。With the rapid development of rail transit, the voltage levels of traction motors are increasing, and low-voltage, high-current motors have emerged.
现有的电机线圈多采用单根线绕制,可通过的电流有限。虽然部分大电流电机的电机线圈采用双根线绕制,可以解决电流密度低的问题,但这会导致线圈引线在其并头处厚度变大、刚度变大,使得前述并头结构在连接过程中容易出现引线头绝缘破损、露铜等问题。此外,线圈引线的并头结构形状复杂、占用空间较大,不利于电机的紧凑安装。Most existing motor coils are wound with a single wire, which can pass a limited current. Although some high-current motors use double-wire winding for the motor coils, which can solve the problem of low current density, this will cause the thickness and stiffness of the coil leads to increase at their joint ends, making the aforementioned joint end structure prone to problems such as lead head insulation damage and copper exposure during the connection process. In addition, the joint end structure of the coil leads is complex in shape and occupies a large space, which is not conducive to the compact installation of the motor.
实用新型内容Utility Model Content
本申请的目的是提供一种牵引电机,可以改善定子引线的并头结构,提高前述并头结构的结构质量和装配特性。The purpose of the present application is to provide a traction motor which can improve the parallel structure of the stator lead wires and enhance the structural quality and assembly characteristics of the aforementioned parallel structure.
为实现上述目的,本申请提供一种牵引电机,包括定子引线和导电环;定子引线具有线圈鼻部、第一引线和第二引线;线圈鼻部自边缘向中心凸起,第一引线的第一引线头沿线圈鼻部的中心穿设且向外引出,第二引线的第二引线头沿线圈鼻部的边缘穿设且向外引出;位于线圈鼻部外的第一引线头径直延伸,位于线圈鼻部外的第二引线头朝第一引线头弯折且并拢,导电环的多个环体分设于并拢的第一引线头和第二引线头的周侧。To achieve the above-mentioned purpose, the present application provides a traction motor, including a stator lead and a conductive ring; the stator lead has a coil nose, a first lead and a second lead; the coil nose protrudes from the edge to the center, the first lead head of the first lead is passed through the center of the coil nose and led outward, and the second lead head of the second lead is passed through the edge of the coil nose and led outward; the first lead head outside the coil nose extends straight, and the second lead head outside the coil nose is bent toward the first lead head and close together, and the multiple ring bodies of the conductive ring are arranged on the surrounding sides of the first lead head and the second lead head that are close together.
在一些实施例中,同一导电环的全部环体包括U环、V环、W环和中性环;同一导电环的全部环体两两分组且分设于并拢的第一引线头和第二引线头的两对侧。In some embodiments, all the ring bodies of the same conductive ring include a U ring, a V ring, a W ring and a neutral ring; all the ring bodies of the same conductive ring are grouped in pairs and are arranged on two opposite sides of the first lead head and the second lead head that are placed side by side.
在一些实施例中,第一引线头朝远离第二引线头的方向相对于线圈鼻部的中心轴偏置;同一导电环的其中两个环体紧邻第一引线头且沿线圈鼻部的轴向并设、另外两个环体紧邻第二引线头且沿线圈鼻部的径向并设。In some embodiments, the first lead head is offset relative to the central axis of the coil nose in a direction away from the second lead head; two ring bodies of the same conductive ring are adjacent to the first lead head and arranged axially along the coil nose, and the other two ring bodies are adjacent to the second lead head and arranged radially along the coil nose.
在一些实施例中,任一定子引线还包括用于实现第一引线头、第二引线头和导电环一体绑扎的绕扎部。In some embodiments, any stator lead further includes a binding portion for integrally binding the first lead head, the second lead head, and the conductive ring.
在一些实施例中,还包括接线盒;定子引线包括第一引线段和第二引线段;线圈鼻部、第一引线头和第二引线头三者均设于第一引线段,第二引线段包括与接线盒连接的铜排。In some embodiments, a junction box is also included; the stator lead includes a first lead segment and a second lead segment; the coil nose, the first lead head and the second lead head are all arranged on the first lead segment, and the second lead segment includes a copper busbar connected to the junction box.
在一些实施例中,铜排设有至少两个安装孔和穿设安装孔且拧紧于接线盒的第一紧固件。In some embodiments, the copper busbar is provided with at least two mounting holes and a first fastener penetrating the mounting holes and tightened to the junction box.
在一些实施例中,接线盒具体为具有L型腔的无磁钢接线盒;铜排设于L型腔的拐角且沿拐角折弯。In some embodiments, the junction box is specifically a non-magnetic steel junction box having an L-shaped cavity; the copper busbar is disposed at a corner of the L-shaped cavity and is bent along the corner.
在一些实施例中,还包括与铜排连接的电缆;接线盒包括成对分布的夹板、成对分布且设于一对夹板之间的垫板、设于一对垫板之间的接线盒支架和用于锁紧一对夹板的第二紧固件;任一夹板设有可供电缆侧向嵌入的开口槽,一对夹板的开口槽的开口相向且均朝向垫板。In some embodiments, it also includes a cable connected to the copper busbar; the junction box includes clamps distributed in pairs, pads distributed in pairs and arranged between a pair of clamps, a junction box bracket arranged between the pair of pads, and a second fastener for locking the pair of clamps; any clamp is provided with an open groove for the cable to be laterally embedded, and the openings of the open grooves of a pair of clamps face each other and are both toward the pad.
在一些实施例中,开口槽具体为U形槽;第二紧固件为设于任一夹板和垫板之间的沉头螺纹件,设于两个夹板的沉头螺纹件相错分布。In some embodiments, the open groove is specifically a U-shaped groove; the second fastener is a countersunk threaded member provided between any one clamping plate and the backing plate, and the countersunk threaded members provided on the two clamping plates are staggered.
在一些实施例中,还包括设于铜排和电缆之间的接线端子;接线端子套设电缆且连接铜排;接线端子具有与接线盒卡接的台阶面;设于多根电缆的多个接线端子两两相对分布。In some embodiments, it also includes a wiring terminal arranged between the copper busbar and the cable; the wiring terminal is sleeved with the cable and connected to the copper busbar; the wiring terminal has a step surface for clamping with the junction box; and multiple wiring terminals arranged on multiple cables are distributed opposite to each other in pairs.
相对于上述背景技术,本申请所提供的牵引电机包括定子引线和导电环;定子引线具有线圈鼻部、第一引线和第二引线;线圈鼻部自边缘向中心凸起,第一引线的第一引线头沿线圈鼻部的中心穿设且向外引出,第二引线的第二引线头沿线圈鼻部的边缘穿设且向外引出;位于线圈鼻部外的第一引线头径直延伸,位于线圈鼻部外的第二引线头朝第一引线头弯折且并拢,导电环的多个环体分设于并拢的第一引线头和第二引线头的周侧。Compared with the above-mentioned background technology, the traction motor provided in the present application includes a stator lead and a conductive ring; the stator lead has a coil nose, a first lead and a second lead; the coil nose protrudes from the edge to the center, the first lead head of the first lead is passed through the center of the coil nose and led outward, and the second lead head of the second lead is passed through the edge of the coil nose and led outward; the first lead head outside the coil nose extends straight, and the second lead head outside the coil nose is bent toward the first lead head and close together, and the multiple ring bodies of the conductive ring are arranged on the surrounding sides of the first lead head and the second lead head that are close together.
本申请所提供的牵引电机令第一引线头自线圈鼻部的中心引出且令第二引线头自线圈鼻部的边缘引出,在第一引线和第二引线并拢以形成并头 结构的过程中,第二引线头朝第一引线头弯折靠拢而第一引线头不弯折,能够减少第一引线头和第二引线头的弯折程度,降低引线绝缘破损的风险。第一引线和第二引线的前述并头结构可以在线圈鼻部的中部的周围留出可供导电环安装的空间,实现导电环的全部环体整齐有序地围拢第一引线头和第二引线头,充分利用线圈鼻部所在空间,提高多个零部件的结构紧凑性和稳定性,适合于结构紧凑的电机。The traction motor provided by the present application allows the first lead head to be led out from the center of the coil nose and the second lead head to be led out from the edge of the coil nose. In the process of bringing the first lead and the second lead together to form a parallel head structure, the second lead head is bent toward the first lead head while the first lead head is not bent, which can reduce the bending degree of the first lead head and the second lead head and reduce the risk of lead insulation damage. The aforementioned parallel head structure of the first lead and the second lead can leave space for the installation of the conductive ring around the middle of the coil nose, so that the entire ring body of the conductive ring neatly and orderly surrounds the first lead head and the second lead head, making full use of the space where the coil nose is located, improving the structural compactness and stability of multiple components, and is suitable for motors with compact structures.
为了更清楚地说明本申请实施例或现有技术中的技术方案,下面将对实施例或现有技术描述中所需要使用的附图作简单地介绍,显而易见地,下面描述中的附图仅仅是本申请的实施例,对于本领域普通技术人员来讲,在不付出创造性劳动的前提下,还可以根据提供的附图获得其他的附图。In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are merely embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying any creative work.
图1为本申请实施例所提供的牵引电机在第一引线头、第二引线头和导电环处的局部结构示意图;FIG1 is a schematic diagram of the partial structure of a traction motor provided by an embodiment of the present application at a first lead head, a second lead head and a conductive ring;
图2为本申请实施例所提供的牵引电机在铜排和接线盒处的局部结构示意图;FIG2 is a schematic diagram of the partial structure of the traction motor at the copper busbar and the junction box provided in an embodiment of the present application;
图3为本申请实施例所提供的牵引电机在电缆和接线盒处的局部结构示意图;FIG3 is a schematic diagram of a partial structure of a traction motor at a cable and a junction box provided in an embodiment of the present application;
图4为本申请实施例所提供的夹板、垫板、第二紧固件和电缆的装配示意图;FIG4 is a schematic diagram of the assembly of the clamping plate, the backing plate, the second fastener and the cable provided in the embodiment of the present application;
图5为图4的正视图;FIG5 is a front view of FIG4;
图6为本申请实施例所提供的电缆和接线端子的装配示意图。FIG. 6 is a schematic diagram of the assembly of the cable and the terminal block provided in an embodiment of the present application.
其中,1-导电环、11-U环、12-V环、13-W环、14-中性环、21-线圈鼻部、22-第一引线、221-第一引线头、23-第二引线、231-第二引线头、232-铜排、2321-安装孔、3-绕扎部、4-接线盒、41-夹板、411-开口槽、42-垫板、43-第二紧固件、44-接线盒支架、5-电缆、6-接线端子。Among them, 1-conductive ring, 11-U ring, 12-V ring, 13-W ring, 14-neutral ring, 21-coil nose, 22-first lead, 221-first lead head, 23-second lead, 231-second lead head, 232-copper bus, 2321-mounting hole, 3-winding part, 4-junction box, 41-clamp, 411-opening groove, 42-pad, 43-second fastener, 44-junction box bracket, 5-cable, 6-terminal.
下面将结合本申请实施例中的附图,对本申请实施例中的技术方案进行清楚、完整地描述,显然,所描述的实施例仅仅是本申请一部分实施例,而不是全部的实施例。基于本申请中的实施例,本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例,都属于本申请保护的范围。The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.
为了使本技术领域的技术人员更好地理解本申请方案,下面结合附图和具体实施方式对本申请作进一步的详细说明。In order to enable those skilled in the art to better understand the present application, the present application is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.
请参考图1至图6,图1为本申请实施例所提供的牵引电机在第一引线头、第二引线头和导电环处的局部结构示意图;图2为本申请实施例所提供的牵引电机在铜排和接线盒处的局部结构示意图;图3为本申请实施例所提供的牵引电机在电缆和接线盒处的局部结构示意图;图4为本申请实施例所提供的夹板、垫板、第二紧固件和电缆的装配示意图;图5为图4的正视图;图6为本申请实施例所提供的电缆和接线端子的装配示意图。Please refer to Figures 1 to 6, Figure 1 is a schematic diagram of the local structure of the traction motor provided in an embodiment of the present application at the first lead head, the second lead head and the conductive ring; Figure 2 is a schematic diagram of the local structure of the traction motor provided in an embodiment of the present application at the copper bus and the junction box; Figure 3 is a schematic diagram of the local structure of the traction motor provided in an embodiment of the present application at the cable and the junction box; Figure 4 is an assembly schematic diagram of the splint, pad, second fastener and cable provided in an embodiment of the present application; Figure 5 is a front view of Figure 4; Figure 6 is an assembly schematic diagram of the cable and terminal provided in an embodiment of the present application.
请参考图1,本申请提供一种牵引电机,包括定子引线和导电环1;在该牵引电机中,定子引线包括线圈鼻部21、第一引线22和第二引线23,前述线圈鼻部21自边缘向中心凸起,前述第一引线22具有第一引线头221,第一引线头221沿线圈鼻部21的中心穿设且向外引出,前述第二引线23具有第二引线头231,第二引线23的第二引线头231沿线圈鼻部21的边缘穿设且向外引出。Please refer to Figure 1. The present application provides a traction motor, including a stator lead and a conductive ring 1; in the traction motor, the stator lead includes a coil nose 21, a first lead 22 and a second lead 23. The coil nose 21 protrudes from the edge to the center, the first lead 22 has a first lead head 221, the first lead head 221 is passed through the center of the coil nose 21 and led outward, and the second lead 23 has a second lead head 231, the second lead head 231 is passed through the edge of the coil nose 21 and led outward.
在该实施例中,第一引线头221和第二引线头231均自线圈鼻部21的内部向线圈鼻部21外引出,可见,部分第一引线头221位于线圈鼻部21内,部分第一引线头221位于线圈鼻部21外,部分第二引线头231位于线圈鼻部21内,部分第二引线头231位于线圈鼻部21外。其中,位于线圈鼻部21外的第一引线头221径直延伸,位于线圈鼻部21外的第二引线头231朝第一引线头221弯折且并拢,导电环1具有多个环体,导电环1的全部环体分设于并拢的第一引线头221和第二引线头231的周侧。In this embodiment, the first lead head 221 and the second lead head 231 are both led out from the inside of the coil nose 21 to the outside of the coil nose 21. It can be seen that part of the first lead head 221 is located inside the coil nose 21, part of the first lead head 221 is located outside the coil nose 21, part of the second lead head 231 is located inside the coil nose 21, and part of the second lead head 231 is located outside the coil nose 21. Among them, the first lead head 221 located outside the coil nose 21 extends straight, and the second lead head 231 located outside the coil nose 21 is bent toward the first lead head 221 and close together. The conductive ring 1 has a plurality of ring bodies, and all the ring bodies of the conductive ring 1 are arranged on the surrounding sides of the first lead head 221 and the second lead head 231 that are close together.
该牵引电机优化了第一引线头221、第二引线头231和线圈鼻部21三者的相对位置关系,令第一引线头221和第二引线头231均向线圈鼻部21 的中部靠拢合并,一则能够减少第一引线头221和第二引线头231的弯折程度,具体指仅令第二引线头231朝第一引线头221弯折靠拢而不弯折第一引线头221,此举有利于保障引线头尤其是第一引线头221的结构强度,也可以减少对线圈鼻部21的挤压;二则能够在线圈鼻部21的中部的周围留出可供导电环1安装的空间,令导电环1的全部环体整齐有序地围拢第一引线头221和第二引线头231。相较于常见的定子引线的端部的结构而言,本申请所提供的牵引电机通过减少第一、二引线头的弯折程度以降低引线绝缘破损的风险,通过合理布局第一、二引线头以及导电环1以充分利用线圈鼻部21所在空间,提高多个零部件的结构紧凑性和稳定性,适合于结构紧凑的电机。The traction motor optimizes the relative position relationship among the first lead head 221, the second lead head 231 and the coil nose 21, so that the first lead head 221 and the second lead head 231 are both close to and merged toward the middle of the coil nose 21. On the one hand, the bending degree of the first lead head 221 and the second lead head 231 can be reduced, specifically, only the second lead head 231 is bent and close to the first lead head 221 without bending the first lead head 221. This is beneficial to ensuring the structural strength of the lead heads, especially the first lead head 221, and can also reduce the squeezing of the coil nose 21; on the other hand, space for the installation of the conductive ring 1 can be reserved around the middle of the coil nose 21, so that the entire ring body of the conductive ring 1 neatly and orderly surrounds the first lead head 221 and the second lead head 231. Compared with the structure of the end of a common stator lead, the traction motor provided in the present application reduces the risk of lead insulation damage by reducing the degree of bending of the first and second lead heads, and reasonably arranges the first and second lead heads and the conductive ring 1 to fully utilize the space where the coil nose 21 is located, thereby improving the structural compactness and stability of multiple components, and is suitable for a compact motor.
下面结合附图和实施方式,对本申请所提供的牵引电机做更进一步的说明。The traction motor provided in the present application is further described below in conjunction with the accompanying drawings and implementation methods.
在一些实施例中,如图1所示,导电环1的全部环体可包括U环11、V环12、W环13和中性环14;其中,U环11、V环12、W环13分别对应于电机的三相。装配导电环1和定子引线时,导电环1的U环11、V环12、W环13和中性环14两两分组且分设于并拢的第一引线头221和第二引线头231的两对侧,例如,导电环1的U环11和V环12同组,导电环1的W环13和中性环14同组,U环11和V环12处于并拢的第一、二引线头的同侧,W环13和中性环14处于并拢的第一、二引线头的同侧,U环11和W环13则分别处于并拢的第一、二引线头的对侧。In some embodiments, as shown in FIG1 , the entire ring body of the conductive ring 1 may include a U ring 11, a V ring 12, a W ring 13 and a neutral ring 14; wherein the U ring 11, the V ring 12 and the W ring 13 correspond to the three phases of the motor respectively. When assembling the conductive ring 1 and the stator lead, the U ring 11, the V ring 12, the W ring 13 and the neutral ring 14 of the conductive ring 1 are grouped in pairs and arranged on two opposite sides of the first lead head 221 and the second lead head 231 that are placed side by side. For example, the U ring 11 and the V ring 12 of the conductive ring 1 are in the same group, and the W ring 13 and the neutral ring 14 of the conductive ring 1 are in the same group. The U ring 11 and the V ring 12 are on the same side of the first and second lead heads that are placed side by side, the W ring 13 and the neutral ring 14 are on the same side of the first and second lead heads that are placed side by side, and the U ring 11 and the W ring 13 are on the opposite sides of the first and second lead heads that are placed side by side, respectively.
结合前文记载可知,在该牵引电机中,部分第一引线头221和部分第二引线头231伸出线圈鼻部21外且并拢于线圈鼻部21的中部,而线圈鼻部21的中部相对于线圈鼻部21的边缘凸起,因此,线圈鼻部21的边缘留有更大的空间,可以合理有效地定位安装U环11、V环12、W环13和中性环14。Combined with the previous records, it can be known that in this traction motor, part of the first lead head 221 and part of the second lead head 231 extend out of the coil nose 21 and are close to the middle part of the coil nose 21, and the middle part of the coil nose 21 is raised relative to the edge of the coil nose 21. Therefore, a larger space is left at the edge of the coil nose 21, which can reasonably and effectively position and install the U-ring 11, V-ring 12, W-ring 13 and neutral ring 14.
通常,第一引线头221自线圈鼻部21的中部引出但略微偏离于线圈鼻部21的中心轴,例如,第一引线头221朝远离第二引线头231的方向偏置,如图1所示,根据第一、二引线头在线圈鼻部21内的分布位置,线圈鼻部21分为上、中、下三部分,第二引线头231自线圈鼻部21的上部引出且 朝线圈鼻部21的中部弯折,第一引线头221自线圈鼻部21的中部径直引出,其中,第一引线头221处于线圈鼻部21的中部靠下的位置。基于第一、二引线头相对于线圈鼻部21的前述分布特点,线圈鼻部21的上部比线圈鼻部21的下部留有更大的空间,当然,受第二引线头231的弯折趋势限制,线圈鼻部21的上部在自身轴向的空间相对较小而在自身径向的空间相对更大,因此,导电环1的其中两个环体可以在线圈鼻部21的上部实现沿径向并设;至于线圈鼻部21的下部,由于第一引线头221径直延伸,因此虽然径向的空间较小但轴向的空间比较大,导电环1的另外两个环体可以在线圈鼻部21的下部实现沿轴向并设,与此同时,第一引线头221不折弯,也能够减少与线圈鼻部21的挤压。Typically, the first lead head 221 is led out from the middle of the coil nose 21 but slightly deviates from the central axis of the coil nose 21. For example, the first lead head 221 is biased in a direction away from the second lead head 231. As shown in FIG1 , according to the distribution positions of the first and second lead heads in the coil nose 21, the coil nose 21 is divided into three parts: upper, middle, and lower parts. The second lead head 231 is led out from the upper part of the coil nose 21 and bent toward the middle part of the coil nose 21. The first lead head 221 is led out directly from the middle part of the coil nose 21, wherein the first lead head 221 is located at a lower position in the middle part of the coil nose 21. Based on the aforementioned distribution characteristics of the first and second lead heads relative to the coil nose 21, a larger space is left at the upper part of the coil nose 21 than at the lower part of the coil nose 21. Of course, limited by the bending tendency of the second lead head 231, the upper part of the coil nose 21 has a relatively smaller axial space and a relatively larger radial space. Therefore, two of the ring bodies of the conductive ring 1 can be radially arranged side by side at the upper part of the coil nose 21; as for the lower part of the coil nose 21, since the first lead head 221 extends straight, although the radial space is smaller, the axial space is relatively larger. The other two ring bodies of the conductive ring 1 can be axially arranged side by side at the lower part of the coil nose 21. At the same time, the first lead head 221 is not bent, which can also reduce the extrusion with the coil nose 21.
简而言之,对于同一导电环1而言,其中两个环体紧邻第一引线头221且沿线圈鼻部21的轴向并设、另外两个环体紧邻第二引线头231且沿线圈鼻部21的径向并设,可以最大限度利用定子引线的径向空间和轴向空间,避免引线绝缘破损,提高定子引线在紧凑型电机内的应用效果。In short, for the same conductive ring 1, two ring bodies are adjacent to the first lead head 221 and are arranged along the axial direction of the coil nose 21, and the other two ring bodies are adjacent to the second lead head 231 and are arranged along the radial direction of the coil nose 21. This can maximize the use of the radial space and axial space of the stator lead, avoid lead insulation damage, and improve the application effect of the stator lead in the compact motor.
在本申请所提供的牵引电机中,定子引线还可以包括用于绑扎第一引线头221、第二引线头231和导电环1的绕扎部3,可参考图1。第一引线头221、第二引线头231和导电环1的全部环体按照上文所记载的相对位置关系并拢时,可采用绕扎部3缠绕捆绑第一引线头221、第二引线头231和导电环1的全部环体,令第一引线头221、第二引线头231和导电环1的全部环体形成一个稳定统一的整体,提高耐振性和环境适应性。当然,根据第一引线头221、第二引线头231和导电环1的具体形状尺寸,还可以对部分零部件单独绑扎后再对全部零部件进行绑扎。In the traction motor provided in the present application, the stator lead may also include a binding portion 3 for binding the first lead head 221, the second lead head 231 and the conductive ring 1, as shown in FIG1. When the first lead head 221, the second lead head 231 and the entire ring body of the conductive ring 1 are placed together according to the relative position relationship described above, the binding portion 3 may be used to wrap and bind the first lead head 221, the second lead head 231 and the entire ring body of the conductive ring 1, so that the first lead head 221, the second lead head 231 and the entire ring body of the conductive ring 1 form a stable and unified whole, thereby improving vibration resistance and environmental adaptability. Of course, according to the specific shape and size of the first lead head 221, the second lead head 231 and the conductive ring 1, some parts may be bound separately and then all parts may be bound.
可参考图1至图2,在一些实施例中,本申请所提供的牵引电机还包括接线盒4;在该牵引电机中,定子引线包括沿其长度方向分布的第一引线段和第二引线段,例如,定子引线沿自身长度方向一分为二,其中一段定子引线为第一引线段,另外一段定子引线为第二引线段;前述第一引线段设有线圈鼻部21、第一引线头221和第二引线头231,可见,第一引线段用于与导电环1装配;前述第二引线段用于与接线盒4连接。通常,第二引线段可以通过铜排232连接于接线盒4,例如,第二引线段的第一引 线22、第二引线23直接由铜排232加工,不需要对第二引线段的第一引线22、第二引线23额外焊接引线接头,可充分利用接线盒4的空间。With reference to FIG. 1 and FIG. 2 , in some embodiments, the traction motor provided in the present application further includes a junction box 4; in the traction motor, the stator lead includes a first lead segment and a second lead segment distributed along the length direction thereof, for example, the stator lead is divided into two along its length direction, one segment of the stator lead is the first lead segment, and the other segment of the stator lead is the second lead segment; the aforementioned first lead segment is provided with a coil nose 21, a first lead head 221 and a second lead head 231, and it can be seen that the first lead segment is used for assembly with the conductive ring 1; the aforementioned second lead segment is used for connection with the junction box 4. Generally, the second lead segment can be connected to the junction box 4 through a copper bus 232, for example, the first lead 22 and the second lead 23 of the second lead segment are directly processed by the copper bus 232, and there is no need to additionally weld lead joints to the first lead 22 and the second lead 23 of the second lead segment, so that the space of the junction box 4 can be fully utilized.
在上述实施例的基础上,为了提高第二引线段和接线盒4的连接可靠性,铜排232设有至少两个安装孔2321和分别穿设各个安装孔2321的第一紧固件,设于安装孔2321内的第一紧固件用于锁紧铜排232和接线盒4。On the basis of the above embodiment, in order to improve the connection reliability between the second lead segment and the junction box 4, the copper busbar 232 is provided with at least two mounting holes 2321 and first fasteners respectively passing through each mounting hole 2321, and the first fasteners provided in the mounting holes 2321 are used to lock the copper busbar 232 and the junction box 4.
在一些实施例中,本申请所采用的接线盒4具体为无磁钢接线盒4,且该无磁钢接线盒4的内部具有L型腔,装配铜排232和无磁钢接线盒4时,铜排232可以设于L型腔的拐角且沿拐角折弯,如图2所示。该示例可以避免大电流产生的涡流效应,提高电机的作业性能。In some embodiments, the junction box 4 used in the present application is specifically a non-magnetic steel junction box 4, and the non-magnetic steel junction box 4 has an L-shaped cavity inside. When the copper busbar 232 and the non-magnetic steel junction box 4 are assembled, the copper busbar 232 can be arranged at the corner of the L-shaped cavity and bent along the corner, as shown in Figure 2. This example can avoid the eddy current effect generated by large current and improve the operating performance of the motor.
可参考图3至图6,在一些实施例中,本申请所提供的牵引电机还包括与铜排232连接的电缆5,为了方便有效地定位电缆5,接线盒4可以包括成对分布的夹板41、成对分布且设于一对夹板41之间的垫板42、设于一对垫板42之间的接线盒支架44以及用于锁紧一对夹板41的第二紧固件43;其中,任意一个夹板41设有开口槽411,一对夹板41的开口槽411的开口相向且均朝向垫板42。装配电缆5和接线盒4时,首先将电缆5沿导向的径向嵌入任意一个夹板41的开口槽411,实现电缆5侧向嵌入开口槽411;然后将两个垫板42和两个夹板41由内向外依次贴紧接线盒支架44的两对侧,此时,两个垫板42分别贴紧接线盒支架44的两对侧,两个夹板41分别贴紧前述两个垫板42的两对侧,与此同时,可采用紧固件将两个夹板41锁紧固定,令两个夹板41牢牢夹紧位于其内的两个垫板42和一个接线盒支架44,从而卡紧电缆5。通常,一个夹板41可以设置多个开口槽411,用于分别卡嵌多根电缆5,例如,一个夹板41可以设置三个开口槽411,两个夹板41的六个开口槽411可以用于分别卡紧六根电缆5。在该实施例中,一对夹板41结构相同,设于夹板41的开口槽411可以适用不同形状尺寸的电缆5,可减少电缆5夹型号、减少开模费用。Referring to Figures 3 to 6, in some embodiments, the traction motor provided in the present application also includes a cable 5 connected to the copper bus 232. In order to conveniently and effectively position the cable 5, the junction box 4 may include clamps 41 distributed in pairs, pads 42 distributed in pairs and arranged between a pair of clamps 41, a junction box bracket 44 arranged between a pair of pads 42, and a second fastener 43 for locking the pair of clamps 41; wherein any one of the clamps 41 is provided with an open groove 411, and the openings of the open grooves 411 of a pair of clamps 41 face each other and are both toward the pad 42. When assembling the cable 5 and the junction box 4, firstly, the cable 5 is inserted into the opening groove 411 of any clamping plate 41 along the radial direction of the guide, so that the cable 5 is inserted into the opening groove 411 laterally; then, the two pads 42 and the two clamping plates 41 are pressed against the two opposite sides of the junction box bracket 44 from the inside to the outside in turn, at which time, the two pads 42 are pressed against the two opposite sides of the junction box bracket 44, and the two clamping plates 41 are pressed against the two opposite sides of the aforementioned two pads 42, and at the same time, the two clamping plates 41 can be locked and fixed by fasteners, so that the two clamping plates 41 firmly clamp the two pads 42 and the junction box bracket 44 therein, thereby clamping the cable 5. Usually, a clamping plate 41 can be provided with multiple opening grooves 411 for clamping multiple cables 5 respectively, for example, a clamping plate 41 can be provided with three opening grooves 411, and the six opening grooves 411 of the two clamping plates 41 can be used to clamp six cables 5 respectively. In this embodiment, a pair of clamping plates 41 have the same structure, and the opening slots 411 provided on the clamping plates 41 can be adapted to cables 5 of different shapes and sizes, thereby reducing the number of types of clamps for the cable 5 and the cost of making molds.
在上述实施例中,开口槽411具体可设置为U形槽;与此同时,垫板42和任意一个夹板41之间设有沉头螺纹件。在该示例中,沉头螺纹件用于锁紧一对夹板41,例如,例如,设于其中一个夹板41的沉头螺纹件穿设并锁紧垫板42和该夹板41,分别设于两个夹板41的多个沉头螺纹件则 可以将两个夹板41均固定于垫板42。可参考图5,设于两个夹板41的沉头螺纹件相错分布。In the above embodiment, the opening groove 411 can be specifically set as a U-shaped groove; at the same time, a countersunk screw is provided between the backing plate 42 and any one of the clamping plates 41. In this example, the countersunk screw is used to lock a pair of clamping plates 41. For example, the countersunk screw provided on one of the clamping plates 41 penetrates and locks the backing plate 42 and the clamping plate 41, and the multiple countersunk screws provided on the two clamping plates 41 can fix both clamping plates 41 to the backing plate 42. Referring to Figure 5, the countersunk screws provided on the two clamping plates 41 are staggered.
在上述实施例的基础上,该牵引电机还包括设于铜排232和电缆5之间的接线端子6;可参考图6,此接线端子6套设电缆5的端部并连接于铜排232,此接线端子6具有与接线盒卡接的台阶面,通过控制接线端子6的局部结构尺寸,既满足电流密度要求,又便于接线端子6顺利通过接线盒4的旋紧件以连接接线盒4,还能够提高铜排232和电缆5此二者在接线盒4内的安装强度。其中,具有台阶面的接线端子6可以由带阶梯的铜管模压而成。On the basis of the above embodiment, the traction motor further includes a terminal 6 disposed between the copper busbar 232 and the cable 5; referring to FIG6 , the terminal 6 is sleeved on the end of the cable 5 and connected to the copper busbar 232, and the terminal 6 has a step surface that is engaged with the junction box. By controlling the local structural dimensions of the terminal 6, the current density requirements are met, and the terminal 6 is convenient for smoothly passing through the screwing member of the junction box 4 to connect the junction box 4, and the installation strength of the copper busbar 232 and the cable 5 in the junction box 4 can be improved. Among them, the terminal 6 with a step surface can be molded from a copper tube with a step.
一个牵引电机设有多根电缆5,如图6所示,牵引电机内安装有六根电缆5,这六根电缆5可以两两相对分布且彼此紧邻,节省接线盒内的布线空间。A traction motor is provided with a plurality of cables 5. As shown in FIG6 , six cables 5 are installed in the traction motor. The six cables 5 can be arranged opposite to each other in pairs and close to each other, thus saving wiring space in the junction box.
综上,本申请所提供的牵引电机为定子引线的第一引线段设计新的并头结构,可以有效规避引线头的绝缘层破损,此外,采用绕扎部3将导电环1与并头结构整体绑扎,实现结构一体化,提高定子的耐振性和电机的结构紧凑性;本申请所提供的牵引电机将定子引线分为第一引线段和第二引线段,根据定子引线沿长度方向的两端的不同安装需求分别设计第一、二引线段的结构形态,安装方便、连接可靠;与第二引线段连接的接线盒4采用无磁钢,减少涡流效应,同时接线盒4采用夹板41和垫板42锁紧电缆5,易于操作且降低成本。In summary, the traction motor provided in the present application is designed with a new parallel head structure for the first lead segment of the stator lead, which can effectively avoid damage to the insulation layer of the lead head. In addition, the winding part 3 is used to bind the conductive ring 1 and the parallel head structure as a whole to achieve structural integration, thereby improving the vibration resistance of the stator and the structural compactness of the motor; the traction motor provided in the present application divides the stator lead into a first lead segment and a second lead segment, and the structural forms of the first and second lead segments are designed respectively according to different installation requirements at both ends of the stator lead along the length direction, which is convenient to install and reliable to connect; the junction box 4 connected to the second lead segment adopts non-magnetic steel to reduce eddy current effect. At the same time, the junction box 4 adopts a clamping plate 41 and a pad 42 to lock the cable 5, which is easy to operate and reduces costs.
以上对本申请所提供的牵引电机进行了详细介绍。本文中应用了具体个例对本申请的原理及实施方式进行了阐述,以上实施例的说明只是用于帮助理解本申请的方法及其核心思想。应当指出,对于本技术领域的普通技术人员来说,在不脱离本申请原理的前提下,还可以对本申请进行若干改进和修饰,这些改进和修饰也落入本申请权利要求的保护范围内。The traction motor provided by the present application is introduced in detail above. Specific examples are used in this article to illustrate the principles and implementation methods of the present application. The description of the above embodiments is only used to help understand the method and core idea of the present application. It should be pointed out that for ordinary technicians in this technical field, without departing from the principles of the present application, several improvements and modifications can be made to the present application, and these improvements and modifications also fall within the scope of protection of the claims of the present application.
Claims (10)
- 一种牵引电机,其特征在于,包括定子引线和导电环(1);所述定子引线具有线圈鼻部(21)、第一引线(22)和第二引线(23);所述线圈鼻部(21)自边缘向中心凸起,所述第一引线(22)的第一引线头(221)沿所述线圈鼻部(21)的中心穿设且向外引出,所述第二引线(23)的第二引线头(231)沿所述线圈鼻部(21)的边缘穿设且向外引出;位于所述线圈鼻部(21)外的所述第一引线头(221)径直延伸,位于所述线圈鼻部(21)外的所述第二引线头(231)朝所述第一引线头(221)弯折且并拢,所述导电环(1)的多个环体分设于并拢的所述第一引线头(221)和所述第二引线头(231)的周侧。A traction motor, characterized in that it comprises a stator lead and a conductive ring (1); the stator lead comprises a coil nose (21), a first lead (22) and a second lead (23); the coil nose (21) protrudes from the edge to the center, a first lead head (221) of the first lead (22) is passed through the center of the coil nose (21) and led outward, and a second lead head (231) of the second lead (23) is passed through the edge of the coil nose (21) and led outward; the first lead head (221) located outside the coil nose (21) extends straight, and the second lead head (231) located outside the coil nose (21) is bent toward the first lead head (221) and close together, and a plurality of ring bodies of the conductive ring (1) are arranged on the peripheral sides of the first lead head (221) and the second lead head (231) that are close together.
- 根据权利要求1所述的牵引电机,其特征在于,同一所述导电环(1)的全部所述环体包括U环(11)、V环(12)、W环(13)和中性环(14);同一所述导电环(1)的全部所述环体两两分组且分设于并拢的所述第一引线头(221)和所述第二引线头(231)的两对侧。The traction motor according to claim 1 is characterized in that all the ring bodies of the same conductive ring (1) include a U ring (11), a V ring (12), a W ring (13) and a neutral ring (14); all the ring bodies of the same conductive ring (1) are grouped in pairs and are arranged on two opposite sides of the first lead head (221) and the second lead head (231) which are placed side by side.
- 根据权利要求2所述的牵引电机,其特征在于,所述第一引线头(221)朝远离所述第二引线头(231)的方向相对于所述线圈鼻部(21)的中心轴偏置;同一所述导电环(1)的其中两个所述环体紧邻所述第一引线头(221)且沿所述线圈鼻部(21)的轴向并设、另外两个所述环体紧邻所述第二引线头(231)且沿所述线圈鼻部(21)的径向并设。The traction motor according to claim 2 is characterized in that the first lead head (221) is offset relative to the central axis of the coil nose (21) in a direction away from the second lead head (231); two of the ring bodies of the same conductive ring (1) are adjacent to the first lead head (221) and are arranged axially along the coil nose (21), and the other two of the ring bodies are adjacent to the second lead head (231) and are arranged radially along the coil nose (21).
- 根据权利要求1所述的牵引电机,其特征在于,任一所述定子引线还包括用于实现所述第一引线头(221)、所述第二引线头(231)和所述导电环(1)一体绑扎的绕扎部(3)。The traction motor according to claim 1 is characterized in that any of the stator leads further comprises a binding portion (3) for integrally binding the first lead head (221), the second lead head (231) and the conductive ring (1).
- 根据权利要求1至4任一项所述的牵引电机,其特征在于,还包括接线盒(4);所述定子引线包括第一引线段和第二引线段;所述线圈鼻部(21)、所述第一引线头(221)和所述第二引线头(231)三者均设于所述 第一引线段,所述第二引线段包括与所述接线盒(4)连接的铜排(232)。The traction motor according to any one of claims 1 to 4 is characterized in that it also includes a junction box (4); the stator lead includes a first lead segment and a second lead segment; the coil nose (21), the first lead head (221) and the second lead head (231) are all arranged on the first lead segment, and the second lead segment includes a copper busbar (232) connected to the junction box (4).
- 根据权利要求5所述的牵引电机,其特征在于,所述铜排(232)设有至少两个安装孔(2321)和穿设所述安装孔(2321)且拧紧于所述接线盒(4)的第一紧固件。The traction motor according to claim 5 is characterized in that the copper busbar (232) is provided with at least two mounting holes (2321) and a first fastener penetrating the mounting holes (2321) and tightened to the junction box (4).
- 根据权利要求5所述的牵引电机,其特征在于,所述接线盒(4)具体为具有L型腔的无磁钢接线盒;所述铜排(232)设于所述L型腔的拐角且沿所述拐角折弯。The traction motor according to claim 5 is characterized in that the junction box (4) is specifically a non-magnetic steel junction box with an L-shaped cavity; the copper busbar (232) is arranged at a corner of the L-shaped cavity and bent along the corner.
- 根据权利要求5所述的牵引电机,其特征在于,还包括与所述铜排(232)连接的电缆(5);所述接线盒(4)包括成对分布的夹板(41)、成对分布且设于一对所述夹板(41)之间的垫板(42)、设于一对所述垫板(42)之间的接线盒支架(44)和用于锁紧一对所述夹板(41)的第二紧固件(43);任一所述夹板(41)设有可供所述电缆(5)侧向嵌入的开口槽(411),一对所述夹板(41)的所述开口槽(411)的开口相向且均朝向所述垫板(42)。The traction motor according to claim 5 is characterized in that it also includes a cable (5) connected to the copper busbar (232); the junction box (4) includes clamping plates (41) distributed in pairs, pads (42) distributed in pairs and arranged between a pair of the clamping plates (41), a junction box bracket (44) arranged between a pair of the pads (42) and a second fastener (43) for locking the pair of the clamping plates (41); any of the clamping plates (41) is provided with an open groove (411) for the cable (5) to be laterally embedded, and the openings of the open grooves (411) of the pair of the clamping plates (41) are opposite to each other and both face the pads (42).
- 根据权利要求8所述的牵引电机,其特征在于,所述开口槽(411)具体为U形槽;所述第二紧固件(43)为设于任一所述夹板(41)和所述垫板(42)之间的沉头螺纹件,设于两个所述夹板(41)的所述沉头螺纹件相错分布。The traction motor according to claim 8 is characterized in that the open groove (411) is specifically a U-shaped groove; the second fastener (43) is a countersunk threaded member arranged between any one of the clamping plates (41) and the pad (42), and the countersunk threaded members arranged on the two clamping plates (41) are staggered.
- 根据权利要求8所述的牵引电机,其特征在于,还包括设于所述铜排(232)和所述电缆(5)之间的接线端子(6);所述接线端子(6)套设所述电缆(5)且连接所述铜排(232);所述接线端子(6)具有与所述接线盒(4)卡接的台阶面;设于多根所述电缆(5)的多个所述接线端子(6)两两相对分布。The traction motor according to claim 8 is characterized in that it also includes a terminal (6) arranged between the copper busbar (232) and the cable (5); the terminal (6) is sleeved with the cable (5) and connected to the copper busbar (232); the terminal (6) has a step surface for snapping with the junction box (4); and the plurality of terminal blocks (6) arranged on the plurality of cables (5) are distributed opposite to each other in pairs.
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Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4421269C1 (en) * | 1994-06-16 | 1995-10-12 | Vem Elektroantriebe Gmbh | Winding head arrangement in stators of surface-cooled AC machines |
CN103138504A (en) * | 2011-11-24 | 2013-06-05 | 天津市天发重型水电设备制造有限公司 | Novel stator coil lead head-trimming designing and manufacturing process |
CN203554124U (en) * | 2013-11-18 | 2014-04-16 | 南车成都机车车辆有限公司 | Locomotive AC traction motor leading-out wire clamp |
CN204243954U (en) * | 2014-12-19 | 2015-04-01 | 南车株洲电机有限公司 | A kind of motor and motor stator thereof |
CN112491190A (en) * | 2020-12-15 | 2021-03-12 | 中车株洲电机有限公司 | Traction motor stator |
CN113595314A (en) * | 2021-07-02 | 2021-11-02 | 中车永济电机有限公司 | Compact terminal box and three-phase lead-out wire structure for motor |
CN216122039U (en) * | 2021-08-06 | 2022-03-22 | 广西玉柴机器股份有限公司 | Multi-annular cooling water channel range extender with rear cable fixing structure for rotary transformer |
CN115498831A (en) * | 2022-10-26 | 2022-12-20 | 成都中车电机有限公司 | AC traction motor line connection structure and binding method |
-
2022
- 2022-10-17 CN CN202222735336.5U patent/CN218183109U/en active Active
- 2022-12-28 WO PCT/CN2022/143024 patent/WO2024082444A1/en active Application Filing
Patent Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4421269C1 (en) * | 1994-06-16 | 1995-10-12 | Vem Elektroantriebe Gmbh | Winding head arrangement in stators of surface-cooled AC machines |
CN103138504A (en) * | 2011-11-24 | 2013-06-05 | 天津市天发重型水电设备制造有限公司 | Novel stator coil lead head-trimming designing and manufacturing process |
CN203554124U (en) * | 2013-11-18 | 2014-04-16 | 南车成都机车车辆有限公司 | Locomotive AC traction motor leading-out wire clamp |
CN204243954U (en) * | 2014-12-19 | 2015-04-01 | 南车株洲电机有限公司 | A kind of motor and motor stator thereof |
CN112491190A (en) * | 2020-12-15 | 2021-03-12 | 中车株洲电机有限公司 | Traction motor stator |
CN113595314A (en) * | 2021-07-02 | 2021-11-02 | 中车永济电机有限公司 | Compact terminal box and three-phase lead-out wire structure for motor |
CN216122039U (en) * | 2021-08-06 | 2022-03-22 | 广西玉柴机器股份有限公司 | Multi-annular cooling water channel range extender with rear cable fixing structure for rotary transformer |
CN115498831A (en) * | 2022-10-26 | 2022-12-20 | 成都中车电机有限公司 | AC traction motor line connection structure and binding method |
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