WO2023130591A1

WO2023130591A1 - Wiring structure

Info

Publication number: WO2023130591A1
Application number: PCT/CN2022/082568
Authority: WO
Inventors: 曹卫
Original assignee: 广东美的智能科技有限公司; 高创传动科技开发（深圳）有限公司
Priority date: 2022-01-04
Filing date: 2022-03-23
Publication date: 2023-07-13
Also published as: CN114498998A

Abstract

Disclosed in the present invention are a wiring structure, a motor stator and a servo motor, a lead (11) end of the motor stator (100) being provided with a plurality of leads (11). The wiring structure comprises: an insulating wiring frame (20) abutted against the lead (11) end and provided with a plurality of lead slots (21) spaced apart from each other, each lead slot (21) at least containing two leads (11); and a plurality of first conductive members (30) in one-to-one correspondence with the plurality of lead slots (21), each first conductive member (30) being detachably mounted in the corresponding lead slot (21) for electrically connecting the at least two leads (11) in the lead slot (21), so that at least two parallel circuits are constructed for the motor stator (100).

Description

Wiring structure

Cross References to Related Applications

This application is based on the Chinese patent application with the application number: 202210003033.6 and the filing date is January 4, 2022, and claims the priority of the Chinese patent application. The entire content of the Chinese patent application is hereby incorporated by reference into this application.

technical field

The present application relates to the field of motors, in particular to a wiring structure.

Background technique

Servo motors are widely used in industrial control and intelligent manufacturing fields such as robots and CNC machine tools. At present, mainstream servo motors often adopt a fractional slot design scheme with less than 1 slot per pole and phase, such as 12 stator slots and 8 or 10 poles. The stator winding of the similar motor is designed with a pitch of y=1, so that the winding machine can be used to directly wind the coil on the stator core teeth, replacing the traditional wire embedding process, and greatly improving the production efficiency. The coils do not overlap in the slot, and there is no need to install Phase-to-phase insulation, these characteristics make fractional slot windings have advantages in large-scale production, cost reduction, and optimization of the cost performance of motor products.

The wound stator coil element has 2 wire ends, see attached drawing 1. For a three-phase AC servo motor with 12 slots and 8 poles, the stator winding is composed of 12 stator coil elements in Figure 1 assembled in a circle, and 12 coils have 24 wire ends. According to the winding rules, they are connected and combined to form a stator winding. . The winding connection method usually used at present is: the part of the end of the wire head that needs to be electrically connected with other wire ends should be scraped off the paint, and the wire ends should be kinked and then welded by soldering. All solder joints are wrapped with insulating film tape and covered with insulating sleeves; the bridge part of the wire end should be covered with insulating sleeves to insulate and isolate the coils of different phases, and the insulating sleeves should be bound and fixed with nylon cable ties. This kind of winding connection and end part manufacturing method requires many processes and low production efficiency.

Contents of the invention

The present invention aims to solve at least one of the technical problems existing in the prior art. For this reason, an object of the present invention is to propose a kind of wiring structure that is used for motor stator, described wiring structure that is used for motor stator is conducive to the electrical connection of the lead wire of motor stator, and layout is beautiful, and operation is simple and is difficult for disorder, can improve High production efficiency, easy to disassemble and repair the motor stator.

The invention also proposes a motor stator with the wiring structure.

The invention also proposes a servo motor with a motor stator.

According to the wiring structure for a motor stator according to an embodiment of the present invention, the lead terminal of the motor stator has a plurality of lead wires, and the wiring structure includes: an insulating terminal frame, and the insulating terminal frame is in contact with the lead terminal, so that The insulated wiring frame has a plurality of lead grooves, the plurality of lead grooves are spaced apart, and at least two of the lead wires are accommodated in each of the lead grooves; a plurality of first conductive members, a plurality of the first conductive The pieces correspond to a plurality of the lead slots one by one, and the first conductive member is detachably installed in the lead slots, so as to electrically connect at least two of the leads in the lead slots, so that The motor stator forms at least two parallel circuits.

According to the wiring structure for the stator of the motor in the embodiment of the present invention, the lead wires of the motor stator can be better fitted in the lead wire grooves by arranging the insulated terminal frame and the spaced lead wire slots in the insulated wire frame, so that there is It is conducive to the electrical connection of the lead wires of the motor stator, and the layout is beautiful, the operation is simple, and the lead wires are not easy to be confused, which can better improve production efficiency. The lead wires in the lead wire groove are electrically connected, and the operation is convenient, and it is also convenient to disassemble and maintain the motor stator.

In addition, according to the wiring structure for the motor stator of the present invention, it can also have the following additional technical features:

In some embodiments of the present invention, there is a power connection groove inside the lead wire groove, at least two of the lead wires are stacked in the power connection groove roughly along the groove depth direction of the power connection groove, and the first The conductive part includes a power connection part and a cutting part, the cutting part is located at one end of the power connection part close to the power connection slot, the cutting part is used to cut the insulation of the lead wire, and the power connection part part for electrical connection with the conductive wire of the lead.

In some embodiments of the present invention, the first conductive member has a conductive slot and the cutout portion located at a notch of the conductive slot, and the electrical connection portion is located in the conductive slot.

In some embodiments of the present invention, the width of the conductive groove is smaller than or equal to the diameter of the conductive wire.

In some embodiments of the present invention, the lead groove is located on the side of the insulated terminal frame away from the lead end, and the insulated terminal frame also has a plurality of lead holes allowing the lead wires to pass through, and a plurality of the lead wires The holes correspond to a plurality of lead wires one by one, and the lead wire holes of at least two electrically connected lead wires are located in the lead wire slots.

In some embodiments of the present invention, the motor stator has three parallel circuits, namely a U-phase circuit, a V-phase circuit and a W-phase circuit, and the wiring structure further includes a second conductive member, which is used for It is electrically connected with the first conductive member of the U-phase circuit, the first conductive member of the V-phase circuit and the first conductive member of the W-phase circuit.

In some embodiments of the present invention, the second conductive member includes: a lead bar, the lead bar has a first plug-in portion, the first conductive member of the U-phase circuit, the V-phase circuit Both the first conductive member and the first conductive member of the W-phase circuit are formed with a second plug-in portion matched with the first plug-in portion.

In some embodiments of the present invention, the second conductive member includes: a conductive connecting piece, the conductive connecting piece has a third insertion portion, the first conductive member of the U-phase circuit, the V-phase Both the first conductive part of the circuit and the first conductive part of the W-phase circuit are formed with a fourth plug-in part matched with the third plug-in part.

The present invention also proposes a motor stator having the wiring structure for a motor stator of the above embodiment.

According to the motor stator of the embodiment of the present invention, by providing the wiring structure of the above-mentioned embodiment, the wiring of the motor stator can be simplified, and the lead wire of the motor stator can be better fitted in the lead wire slot, thereby facilitating the electrical connection of the lead wire of the motor stator. Moreover, the layout is beautiful, the operation is simple, and the lead wires are not easy to be confused, which can better improve the production efficiency. In addition, when the lead wires are fitted in the lead wire groove, the lead wires in the lead wire groove can be electrically connected through the first conductive member. , easy to operate, and easy to disassemble and repair the motor stator.

The present invention also proposes a servo motor with the motor stator of the above embodiment.

According to the servo motor of the embodiment of the present invention, by being provided with the motor stator of the above embodiment, the assembly efficiency of the servo motor can be improved, and at the same time, the disassembly and maintenance of the servo motor can be facilitated.

Additional aspects and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.

Description of drawings

The above and/or additional aspects and advantages of the present invention will become apparent and understandable from the description of the embodiments in conjunction with the following drawings, wherein:

Fig. 1 is a schematic structural diagram of a stator unit according to an embodiment of the present invention.

Fig. 2 is a schematic structural diagram of a motor stator according to an embodiment of the present invention.

Fig. 3 is a schematic diagram of the structure when the lead wires of the motor stator cooperate with the lead wire holes of the insulating terminal frame according to an embodiment of the present invention.

Fig. 4 is a schematic structural view of the lead wires of the motor stator mating with the lead grooves of the insulating terminal frame according to an embodiment of the present invention.

FIG. 5 is an enlarged view of area A in FIG. 4 .

FIG. 6 is an enlarged view of area B in FIG. 4 .

Fig. 7 is a schematic structural diagram of an insulating terminal frame according to an embodiment of the present invention.

FIG. 8 is an enlarged view of area C in FIG. 7 .

Fig. 9 is a schematic diagram of the structure of the cooperation between the first conductive member and the lead according to the embodiment of the present invention.

Fig. 10 is a schematic structural diagram of a first conductive member according to an embodiment of the present invention.

FIG. 11 is a schematic structural diagram of a lead row according to an embodiment of the present invention.

Fig. 12 is a schematic structural diagram of a conductive connecting sheet according to an embodiment of the present invention.

Reference signs:

Motor stator 100, stator unit 10, lead wire 11, flange 12,

Insulated wiring frame 20, lead wire groove 21, electric connection groove 22, lead wire notch 221, conductive member notch 222, leg 23, first conductive member 30, support plate 31, connecting plate 32, guide plate 33,

The second conductive member 40 , the lead bar 41 , and the conductive connecting piece 42 .

Detailed ways

Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary only for explaining the present invention and should not be construed as limiting the present invention.

The wiring structure for the motor stator 100 according to the embodiment of the present invention will be described below with reference to FIGS. 1-11 .

The wiring mechanism for the motor stator 100 according to the embodiment of the present invention includes an insulating terminal frame 20 and a plurality of first conductive members 30. Specifically, taking the motor stator 100 as an example, refer to FIGS. 1 , 2 , 3 and 4 As shown, the motor stator 100 includes a plurality of stator units 10, and each stator unit 10 has two lead wires 11, and the plurality of stator units 10 can be spliced by a plurality of stator units 10, and the motor stator 100 in the accompanying drawing 2 has Twelve stator units 10, twenty-four lead wires 11, thus, twelve stator units 10 can be spliced into a circular motor stator 100, and the circular motor stator 100 has twenty-four lead wires 11 .

However, the winding connection method commonly used at present is: the part of the end of the lead wire 11 that needs to be electrically connected with other lead wires 11 needs to be scraped off the paint, and the lead wires 11 are twisted and then welded by soldering. Weld with tin soldering, wrap insulating film tape on all solder points, and cover insulating sleeves; lead wire 11 bridge part should be covered with insulating sleeves to insulate and isolate coils of different phases, and nylon cable ties should be used for binding the insulating sleeves fixed. This kind of winding connection and end part manufacturing method requires many processes and low production efficiency. Based on this, in the present application, the process is simplified by designing the wiring mechanism, thereby improving production efficiency.

More specifically, the insulated terminal frame 20 abuts against the ends of the lead wires 11, and the insulated terminal frame 20 has a plurality of lead wire grooves 21 spaced apart from each other, and each lead wire groove 21 accommodates at least two lead wires 11, and also That is to say, two lead wires 11 can be accommodated in the lead wire groove 21, and three or more lead wires 11 can also be accommodated, which is not limited here and can be specifically determined according to actual needs. Similarly, according to the motor stator 100 of the above-mentioned example as an example, there are twelve lead wire slots 21 on the insulating terminal frame 20, and the twelve lead wire slots 21 are spaced apart, which can avoid short circuits between the lead wires 11, and can also optimize The layout between the lead wires 11 makes the lines beautiful and less prone to confusion. Wherein, the insulating wiring frame 20 may be made of plastic material or ceramic material, which is not limited here.

Further, the twenty-four lead wires 11 of the motor stator 100 can be located in one lead wire slot 21 according to the actual layout requirements, for example, the twelve stator units 10 are respectively referred to as the first stator unit 10 to the twelfth stator unit 10, the two lead wires 11 of the first stator unit 10 are respectively called the upper lead wire 11 and the lower lead wire 11, and the upper lead wire 11 is defined as 1, the lower limit head is defined as 1', and the rest The lead wires 11 of the eleven stator units 10 are similarly defined as 2/2'; 3/3'; 4/4'; 5/5'; 6/6'; 7/7'; 8/8'; 9 /9'; 10/10'; 11/11'; 12/12', according to the winding composition rules, every two leads 11 are placed in a lead slot 21 and then electrically connected, for example, so that 1 and 4, 1' and 10, 4' and 7, 7' and 10', 2 and 11, 2' and 5, 11' and 8, 5' and 8', 3 and 12, 3' and 6, 12' and 9, 6' and 9 ′ are respectively placed in the corresponding lead grooves 21 along the corresponding lead grooves 21 , and then the two lead wires 11 in the lead grooves 21 are electrically connected through the first conductive member 30 .

Specifically, there are a plurality of first conductive members 30, and the plurality of first conductive members 30 correspond to the plurality of lead slots 21 one by one. At least two lead wires 11 in 21 are electrically connected, so that the motor stator 100 forms at least two parallel circuits. The motor stator 100 in the above example can construct three parallel circuits, that is, a U-phase circuit, a V-phase circuit and a W-phase circuit, thereby constructing a three-phase motor stator 100 .

Thus, according to the wiring structure for the motor stator 100 according to the embodiment of the present invention, the lead wires 11 of the motor stator 100 can be made to be better ground fit in the lead wire groove 21, thereby facilitating the electrical connection of the lead wire 11 of the motor stator 100, and the layout is beautiful, the operation is simple, and the lead wire 11 is not easy to be confused, which can better improve production efficiency. In addition, when the lead wire 11 After fitting in the lead groove 21 , the lead wires 11 in the lead groove 21 can be electrically connected through the first conductive member 30 , which is easy to operate and facilitates disassembly and maintenance of the motor stator 100 .

In addition, it should be noted that this application uses the motor stator 100 as an example for illustration. It can be understood that the wiring structure of this application can also be applied to other serial-parallel connection schemes between multiple lines, and there is no limitation here. . In addition, for the convenience of describing the present application, the following part of the present application directly takes the circular motor stator 100 with twenty-four lead wires 11 as an example, and will not be described in detail below.

In some embodiments of the present invention, there is a power connection groove 22 inside the lead wire groove 21, at least two lead wires 11 are stacked in the power connection groove 22 approximately along the groove depth direction of the power connection groove 22, and the first conductive member 30 includes a power connection groove. The electrical part and the cutting part, the cutting part is located at one end of the connecting part close to the connecting groove 22, the cutting part is used for cutting the insulation of the lead wire 11, and the connecting part is used for electrically connecting with the conductive wire of the lead wire 11.

For example, as shown in Fig. 7 and Fig. 8, the electric connection slot 22 has a lead wire notch 221 and a conductive part notch 222, and the lead wire notch 221 runs through the electric slot 22 along the middle of the electric connection slot 22, and the two lead wires 11 are respectively along the lead wire slot. 21 is bent and fitted in the lead wire notch 221 of the electric connection slot 22, the diameter a of the lead wire notch 221 and the diameter b of the lead wire 11 can satisfy: b≤a<2b, thus, the two lead wires 11 can be The groove depth direction of the connection groove 22 is stacked in the connection groove 22, and the first conductive member 30 can fit in the notch 222 of the conductive member. In this example, the lead wire notch 221 is located in the middle of the notch 222 of the conductive member , and run through the notch 222 of the conductive element. In other examples, the notch 222 of the conductive element may also be located on one side of the notch 221 of the lead wire, and also pass through the notch 222 of the conductive element, which is not limited here. The purpose of the lead wire notch 221 passing through the conductive member notch 222 is that after the lead wire 11 can be stacked in the lead wire notch 221 along the groove depth direction, the first conductive member 30 is inserted into the conductive member notch along the groove depth direction. In the process in 222, the cutting part can preferably cut off the insulation of the lead wire 11, so that the conductive thread part of the lead wire 11 is exposed, so that as the first conductive member 30 continues to extend into the notch 222 along the conductive member , so that the electric connection part of the first conductive member 30 can be in contact with the conductive wire, and the electric connection part has the ability to conduct electricity, so that the conductive wires of the two lead wires 11 whose insulation has been cut off can be electrically connected. Therefore, when the application is performing wiring, it is not necessary to cut off the insulation, and it is not necessary to solder the lead wires 11 or to intertwine the lead wires 11 in other ways. A conductive member 30 is disassembled, which causes little damage to the lead wire 11, and can be used after reassembly.

In some examples, a positioning structure can also be provided between the first conductive member 30 and the electrical connection groove 22, such as a buckle structure, or an elastic sheet structure, so that the first conductive member 30 and the electrical connection groove 22 can be relatively fast after mating. Stable and not easy to fall off.

In some examples, the first conductive member 30 has a conductive groove and a cutout portion located at a notch of the conductive groove, and the electrical connection portion is located in the conductive groove. With reference to the structure of the first conductive member 30 in FIG. 9 and FIG. 10, the conductive member has two support plates 31 and a connection plate 32 between the two support plates 31, and the electric connection groove 22 runs through the two support plates 31 and the connection plate 32. The first conductive member 30 can be completely made of metal material. In FIG. 10, the notch of the conductive groove has a corner, and the corner can directly connect the insulation skin of the lead wire 11 when the first conductive member 30 and the lead wire 11 are inserted. Excision can also make the corners sharper, thereby better cutting off the insulation of the lead wire 11. Thus, the corner can be directly configured as a cutting portion, and of course, the cutting of the insulation can also be realized by adding a cutting knife, which is not limited here.

Furthermore, it is explained for the power connection groove 22 and the lead wire notch 221 of the present application that the extending direction of the notch of the power connection groove 22 and the extending direction of the lead wire notch 221 are perpendicular to each other, thus, it can better realize The common clamping of the lead wire 11 by the electric connection groove 22 and the lead wire notch 221 . In addition, it can be understood that the angle between the extension direction of the notch of the power connection slot 22 and the extension direction of the lead wire notch 221 can also be an acute angle, which is not limited here, as long as the connection between the power connection slot 22 and the lead wire slot can be realized. It is enough that the opening 221 clamps the lead wire 11 together.

Optionally, the groove width of the conductive groove is less than or equal to the diameter of the conductive wire, so that the insulation of the lead wire 11 can be cut through the notch of the conductive groove, and the groove width of the conductive groove is less than or equal to the diameter of the conductive wire. Realize the reliable clamping of the conductive wire, thereby preventing the virtual connection of the circuit, which will bring safety hazards to the operation of the motor.

In some embodiments of the present invention, a plurality of power connection slots 22 are arranged at intervals along the outer periphery of the insulating terminal frame 20, and the lead wire slots 21 are located on the side of the insulating terminal frame 20 away from the end of the lead wire 11. The insulating terminal frame 20 also has multiple allowable Lead wires 11 pass through the lead wire 11 holes, and the plurality of lead wire 11 holes correspond to the plurality of lead wires 11 one by one, and the lead wire 11 holes of at least two electrically connected lead wires 11 are located in the lead wire groove 21 .

For example, as shown in FIG. 7 , the insulated wiring frame 20 has twelve lead wire grooves 21, and each lead wire groove 21 has two lead wire 11 holes, and the two lead wire 11 holes can pass two lead wires 11 that need to be electrically connected into one In the lead wire groove 21, then the lead wire 11 is bent and accommodated in the lead wire groove 21, wherein, the power connection groove 22 can be located at the end of the lead wire groove 21, and at the same time, a plurality of power connection grooves 22 can also be adjacently arranged according to actual needs, In other words, the distance between two adjacent power connection slots 22 can be designed according to actual needs. In one example, the twelve power connection slots 22 of the insulating terminal frame 20 are the first power connection slot 22 to the twelfth power connection slot 22 in the counterclockwise direction, wherein the first power connection slot 22 and the second power connection slot The distance between the electric tanks 22 is L, the distance from the second electric connection groove 22 to the third electric connection groove 22 is m, the third electric connection groove 22, the fourth electric connection groove 22, the fifth electric connection groove 22, the third electric connection groove The distance between the six electric connection grooves 22 and the seventh electric connection groove 22 is n, the distance between the eighth electric connection groove 22, the ninth electric connection groove 22, and the tenth electric connection groove 22 is 0, and the tenth electric connection groove 22 is 0. The distance between the connection slot 22, the eleventh connection slot 22, and the twelfth connection slot 22 is P, and the distance between the twelfth connection slot 22 and the first connection slot 22 is Q, above Each distance satisfies: O<L<m<n=p<Q.

Further, the motor stator 100 has three parallel circuits, namely a U-phase circuit, a V-phase circuit and a W-phase circuit. The component 30, the first conductive component 30 of the V-phase circuit and the first conductive component 30 of the W-phase circuit are electrically connected.

In one example, the second conductive member 40 includes: a lead bar 41, the lead bar 41 has a first socket portion, the first conductive member 30 of the U-phase circuit, the first conductive member 30 of the V-phase circuit, and the first conductive member 30 of the W-phase circuit. Each of the first conductive members 30 is formed with a second plug-in portion that cooperates with the first plug-in portion. In the example shown in FIG. 4 , FIG. 5 , FIG. 10 and FIG. 11 , a second insertion portion is formed between the two support plates 31 on the first conductive member 30 , and the lead wire row 41 faces the first conductive member 30 The protrusion at one end is configured as the first plug-in part. At the same time, in order to better adapt to the cooperation between the lead wire row 41 and the lead wire 11, a groove with the same diameter as the lead wire 11 can be set at the end of the protrusion. In this way, the first plug-in After the connecting part is matched with the second plug-in part, the electrical connection between the lead wire row 41 and the lead wire 11 can be realized, and one lead wire row 41 has three plug-in parts, and the three plug-in parts can be plugged into three first conductive parts 30. That is, the three first conductive parts 30 are the first conductive part 30 in the first power connection slot 22 in the above example, the first conductive part 30 in the second power connection slot 22 and the third conductive part 30 respectively. The first conductive member 30 in the conductive slot, wherein the first conductive slot has the U-phase head of the U-phase circuit, the second conductive slot has the V-phase head of the V-phase circuit, and the third conductive slot has the W-phase The first end of the W phase of the circuit. Through the design of the above-mentioned distances, the cooperation between the lead wire row 41 and the U-phase head end, the V-phase head end and the W-phase head end can be better realized.

Further, a guide plate 33 is formed on at least one of the two support plates 31 on the first conductive member 30, and the guide plate 33 has a guide arc surface, so that the lead wire row 41 can be better aligned with the first The conductive member 30 cooperates, and at the same time, it can better realize the clamping of the lead wire row 41, so that the lead wire row 41 is not easy to fall.

In one example, the second conductive member 40 includes: a conductive connecting piece 42, the conductive connecting piece 42 has a third plug-in portion, the first conductive member 30 of the U-phase circuit, the first conductive member 30 of the V-phase circuit, and the W-phase The first conductive parts 30 of the circuit are each formed with a fourth plug-in portion that cooperates with the third plug-in portion. In the example shown in Figure 4, Figure 6, Figure 10 and Figure 12, the first conductive member 30 of the U-phase circuit, the first conductive member 30 of the V-phase circuit and the first conductive member 30 of the W-phase circuit are respectively The first conductive member 30 in the eighth electrical connection groove 22, the first conductive member 30 in the ninth electrical connection groove 22 and the first conductive member 30 in the tenth electrical connection groove 22, the three electrical connection members in the accompanying drawing 6 The electric tanks 22 are in contact with each other, and the two support plates 31 of the three first conductive members 30 jointly define a fourth plug-in part, and the third plug-in part can cooperate with the fourth plug-in part to connect the first plug-in part. The lead wires 11 in the eighth electrical connection tank 22 , the ninth electrical connection tank 22 , and the tenth electrical connection tank 22 are electrically connected.

Further, a plurality of slots are formed on the conductive connecting piece 42, and the plurality of slots can be matched with the side walls of the electrical connection groove 22, thereby improving the firmness after matching.

The specific wiring structure and wiring method of the three-phase motor stator 100 according to a specific embodiment of the present invention will be described below with reference to the accompanying drawings 1-12.

The motor stator 100 of the three-phase motor includes twelve stator units 10, each stator unit 10 has two lead wires 11, and the twelve stator units 10 can be spliced into a circular motor stator 100, and the circular motor The stator 100 has twenty-four leads 11 . In addition, each stator unit 10 also has a flange 12 , so that the circular motor stator 100 composed of twelve stator units 10 forms a circular flange structure.

The insulating connecting frame can be abutted on the ring-shaped flange structure. At the same time, the insulating connecting frame has a plurality of legs 23, and the plurality of legs 23 are used to abut against the outer surface of the flanged structure, thereby forming a peripheral limit. Further, twenty-four lead wires 11 holes are formed on the insulating connection frame Shanghai, and since the two lead wires 11 of each stator unit 10 are arranged at intervals in the radial direction of the motor stator 100, so, for the sake of description, each The two lead wires 11 of the stator unit 10 are respectively referred to as the upper lead wire 11 and the lower lead wire 11, and the twelve upper lead wires 11 and the twelve lower lead wires 11 are respectively arranged at intervals along the radial direction of the motor stator 100, and in the design When the lead wires have 11 holes, twelve upper lead wires 11 holes and twelve lower lead wires 11 holes are correspondingly arranged on the radial direction of the motor stator 100, so that when the insulating connecting frame is assembled, the world will be 20 Four lead wires 11 and twenty-four lead wires 11 holes can be plugged correspondingly.

Twelve lead wire grooves 21 are formed on the side of the insulating connection frame away from the flanging structure, and each lead wire groove 21 has two lead wire 11 holes in it, so that two lead wires 11 can be bent in the same lead wire groove 21, The twelve lead wire slots 21 are spaced apart from each other, so that wiring errors can be avoided, and the layout of the lead wires 11 can be better realized, with high reliability and low error rate.

And in lead groove 21, also have connecting groove 22, connecting groove 22 has lead wire notch 221 and conductive part notch 222, and lead wire notch 221 penetrates through connecting groove 22 along the middle of connecting groove 22, two lead wires 11 After being bent along the lead wire groove 21 respectively, they fit into the lead wire notch 221 of the power connection groove 22, and the diameter a of the lead wire notch 221 and the diameter b of the lead wire 11 can satisfy: b≤a<2b, thus, the two The lead wire 11 can be stacked in the power connection groove 22 along the groove depth direction of the power connection groove 22, and the first conductive member 30 can fit in the notch 222 of the conductive member. In this example, the notch 221 of the lead wire is located in the notch of the conductive member 222 at the middle position, and runs through the notch 222 of the conductive member. The first conductive member 30 has a conductive groove and a cutout portion located at the notch of the conductive groove, and the electrical connection portion is located in the conductive groove. With reference to the structure of the first conductive member 30 in FIG. 9, the conductive member has two support plates 31 and a connection plate 32 between the two support plates 31, and the electric connection groove 22 runs through the two support plates 31 and the connection plate 32. A conductive member 30 can be completely made of metal material. In FIG. 10, the notch of the conductive groove has a corner, and the corner can directly cut off the insulation of the lead wire 11 when the first conductive member 30 is plugged into the lead wire 11, and also The corners can be made sharper, so that the insulation of the leads 11 can be better removed. Thus, the corner can be directly configured as a cutout portion, thus, after the lead wire 11 is stacked in the lead wire notch 221 along the groove depth direction, the first conductive member 30 is inserted into the conductive member notch 222 along the groove depth direction During the internal process, the cutting part can preferably cut off the insulation of the lead wire 11, so that the conductive wire part of the lead wire 11 is exposed, so that as the first conductive member 30 continues to extend along the conductive member notch 222, The electric connection part of the first conductive member 30 can be in contact with the conductive wire, and the electric connection part has the ability to conduct electricity, so that the conductive wires of the two lead wires 11 whose insulation skin has been cut off can be electrically connected. Therefore, when the application is performing wiring, it is not necessary to cut off the insulation, and it is not necessary to solder the lead wires 11 or to intertwine the lead wires 11 in other ways. A conductive member 30 is disassembled, which causes little damage to the lead wire 11, and can be used after reassembly.

The twelve stator units 10 are respectively referred to as the first stator unit 10 to the twelfth stator unit 10, and the two lead wires 11 of the first stator unit 10 are respectively referred to as the upper lead wire 11 and the lower lead wire 11, and The upper lead 11 is defined as 1, the lower lead 11 is defined as 1', and the lead 11 of the remaining eleven stator units 10 is defined as 2/2'; 3/3'; 4/4'; 5/5' in turn ; 6/6'; 7/7'; 8/8'; 9/9'; 10/10'; 11/11'; 12/12', according to the winding composition rules, every 2 leads 11 are placed on a lead Electrical connections are made in the slot 21, for example, 1 and 4, 1' and 10, 4' and 7, 7' and 10', 2 and 11, 2' and 5, 11' and 8, 5' and 8', 3 and 12, 3' and 6, 12' and 9, 6' and 9' are respectively placed in the corresponding lead groove 21 along the corresponding lead groove 21, and then through the first conductive member 30, the The two leads 11 are electrically connected. Thus, the motor stator 100 has three parallel circuits, which are U-phase circuit, V-phase circuit and W-phase circuit respectively.

The twelve power connection slots 22 of the insulated wiring frame 20 are sequentially numbered from the first power connection slot 22 to the twelfth power connection slot 22 along the counterclockwise direction, wherein, between the first power connection slot 22 and the second power connection slot 22 The distance is L, the distance from the second power connection slot 22 to the third power connection slot 22 is m, the third power connection slot 22, the fourth power connection slot 22, the fifth power connection slot 22, the sixth power connection slot 22 , the distance between the seventh connecting groove 22 is n, the distance between the eighth connecting groove 22, the ninth connecting groove 22, and the tenth connecting groove 22 is 0, the tenth connecting groove 22, The distance between the eleventh connecting tank 22 and the twelfth connecting tank 22 is P, and the distance between the twelfth connecting tank 22 and the first connecting tank 22 is Q, and the above distances satisfy: O <L<m<n=p<Q. Wherein, the two electrically connected lead wires 11 in the first power connection tank 22 are the U phase head end of the U phase circuit, and the two electrically connected lead wires 11 in the second power connection tank 22 are the V phase head end of the V phase circuit. terminal, the two electrically connected lead wires 11 in the third electric connection tank 22 are the W-phase first end of the W-phase circuit; the two electrically connected lead wires 11 in the eighth electric connection tank 22 are the U phase N of the U-phase circuit The two electrically connected lead wires 11 in the ninth electrical connection tank 22 are the V-phase N terminals of the V-phase circuit, and the electrically connected two lead wires 11 in the tenth electrical connection tank 22 are the W-phase N terminals of the W-phase circuit. end.

A second plug-in portion is constructed between the two support plates 31 on the first conductive member 30, and the protrusion of the lead wire row 41 toward one end of the first conductive member 30 is configured as a first plug-in portion, and at the same time, for better To adapt to the cooperation of the lead wire row 41 and the lead wire 11, a groove with the same diameter as the lead wire 11 can be set at the protruding end, so that after the first plug-in part is matched with the second plug-in part, the lead wire row 41 and the lead wire 11 can be realized. electrical connection, and one lead bar 41 has three plug-in parts, and the three plug-in parts can be plug-fitted with the three first conductive parts 30 .

The three electric connection slots 22 are in contact with each other, and the two support plates 31 of the three first conductive members 30 jointly define a fourth plug-in part, and the third plug-in part can cooperate with the fourth plug-in part, To electrically connect the lead wires 11 in the eighth electric connection slot 22 , the ninth electric connection slot 22 , and the tenth electric connection slot 22 . A plurality of slots are formed on the conductive connecting piece 42 , and the plurality of slots can be matched with the side wall of the electrical connection slot 22 , thereby improving the fastness after mating.

The present invention also proposes a motor stator 100 having the wiring structure for the motor stator 100 of the above-mentioned embodiments.

According to the motor stator 100 of the embodiment of the present invention, by being provided with the wiring structure of the above-mentioned embodiment, the wiring of the motor stator 100 can be simplified, and the lead wire 11 of the motor stator 100 can be better fitted in the lead wire slot 21, thereby facilitating the motor The electrical connection of the lead wires 11 of the stator 100, moreover, the layout is beautiful, the operation is simple, and the lead wires 11 are not easy to be confused, which can better improve the production efficiency. The conductive member 30 electrically connects the lead wires 11 in the lead wire groove 21 , which is convenient to operate and facilitates disassembly and maintenance of the motor stator 100 .

The present invention also proposes a servo motor having the motor stator 100 of the above-mentioned embodiment.

According to the servo motor of the embodiment of the present invention, by being provided with the motor stator 100 of the above embodiment, the assembly efficiency of the servo motor can be improved, and at the same time, the disassembly and maintenance of the servo motor can be facilitated.

Other configurations and operations of the servo motor and the motor stator 100 according to the embodiment of the present invention are known to those skilled in the art and will not be described in detail here.

In the description of this specification, descriptions with reference to the terms "some embodiments", "optionally", "further" or "some examples" mean that specific features, structures, materials or A feature is included in at least one embodiment or example of the invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

Although the embodiments of the present invention have been shown and described, those skilled in the art can understand that various changes, modifications, substitutions and modifications can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the invention is defined by the claims and their equivalents.

Claims

A wiring structure for a motor stator, characterized in that the lead end of the motor stator has a plurality of lead wires, and the wiring structure includes:

Insulated wiring frame, the insulated wiring frame abuts against the lead end, the insulated wiring frame has a plurality of lead slots, the plurality of lead slots are spaced apart, and each of the lead slots accommodates at least two said leads;

A plurality of first conductive parts, a plurality of first conductive parts correspond to a plurality of the lead slots one by one, the first conductive parts are detachably installed in the lead slots for connecting the lead wires At least two of the lead wires in the slot are electrically connected, so that the motor stator forms at least two parallel circuits.
According to the wiring structure for motor stator according to claim 1, it is characterized in that, there is a power connection groove in the said lead wire groove, and at least two said lead wires are stacked on said power connection groove substantially along the groove depth direction of said power connection groove. In the power connection groove, the first conductive member includes a power connection part and a cutting part, the cutting part is located at one end of the power connection part close to the power connection groove, and the cutting part is used for cutting the The insulating skin of the lead wire, the electrical connection part is used for electrical connection with the conductive wire of the lead wire.
The wiring structure for a motor stator according to claim 2, wherein the first conductive member has a conductive groove and the cutout portion located at the notch of the conductive groove, and the electrical connection portion located in the conductive slot.
The wiring structure for a motor stator according to claim 3, wherein the width of the conductive groove is smaller than or equal to the diameter of the conductive wire.
The wiring structure for a motor stator according to claim 2, wherein the lead groove is located on the side of the insulating terminal frame away from the lead end, and the insulating terminal frame also has a plurality of holes that allow the lead wire to pass through. Lead holes are provided, and a plurality of lead holes corresponds to a plurality of lead wires, and the lead holes of at least two electrically connected leads are located in the lead groove.
The wiring structure for the motor stator according to claim 1, wherein the motor stator has three parallel circuits, which are U-phase circuit, V-phase circuit and W-phase circuit respectively, and the wiring structure also includes a second A conductive member, the second conductive member is used to electrically connect with the first conductive member of the U-phase circuit, the first conductive member of the V-phase circuit, and the first conductive member of the W-phase circuit.
The wiring structure for a motor stator according to claim 6, wherein the second conductive member comprises: a lead wire row, the lead wire row has a first plug-in part, and the first plug-in portion of the U-phase circuit A second plug-in portion cooperating with the first plug-in portion is formed on a conductive member, the first conductive member of the V-phase circuit, and the first conductive member of the W-phase circuit.
The wiring structure for a motor stator according to claim 6, wherein the second conductive member comprises: a conductive connecting piece, the conductive connecting piece has a third plug-in portion, and all the U-phase circuits A fourth insertion part that cooperates with the third insertion part is formed on the first conductive part, the first conductive part of the V-phase circuit, and the first conductive part of the W-phase circuit.
A motor stator, characterized in that it comprises the wiring structure for a motor stator according to any one of claims 1-8.
A servo motor, characterized in that it comprises the motor stator according to claim 9.