TW201431253A - Motor stator and wire tying device thereof - Google Patents

Abstract

The utility model relates to a motor stator and a wire tying device thereof. The motor stator comprises a core, multiple coil windings arranged at an inner side of the core with intervals and the wire tying device arranged at one side of the core, wherein the wire tying device comprises multiple connection sheets and an outer framework, each connection sheet is a metal conductor and comprises an arc segment and at least one guide connection portion, the arc segment is a long narrow thin sheet structure and bends along a long axial direction to form an arc structure, all the guide connection portions are respectively connected with the coil windings, the multiple connection sheets are used for connecting with a power source, and the connection sheets are wrapped and separated by the outer framework. Through modularized design of the wire tying device, each coil winding can be easily mounted and connected larger magnitude current can be provided while thickness of the motor stator is not needed to increase and the motor stator is applicable to a large power motor.

Description

Motor stator and its wiring device

The invention relates to a stator structure of a motor, in particular to a wire connecting device for connecting coil windings of each group on a stator.

The motor is a commonly used device that converts electrical energy into rotational mechanical energy. The motor can be divided into three-phase motors and single-phase motors. The stator of the three-phase motor is provided with a stator and a rotor, and the stator is fixed on the motor casing, and the rotor is rotatably disposed in the stator. A plurality of coil windings are symmetrically distributed on the stator, and the coil windings can be divided into three groups according to the polarity. When used, a three-phase power source can be input to generate a rotating magnetic field, thereby driving the rotor to rotate.

The three-phase motor stator of the prior art comprises a core composed of laminated silicon steel sheets, a plurality of working columns are arranged on the inner ring wall surface of the iron core, and a coil winding is respectively arranged on each working column. Each coil winding is further connected by a wire in a specific connection order to form a corresponding phase, and the cross section of the wire is circular.

However, in the prior art, since the coil windings are connected by wires, the corresponding coils are respectively connected by the plurality of wires, so the installation procedure is complicated, the installation is inconvenient, and the amount of current that can be input is also affected. The limitation of the wire, the output power of the motor will be limited by the wire, so it still needs further improvement.

In view of the disadvantages of the prior art motor stator having complicated installation procedures and insufficient input current, the present invention is designed with a motor stator and a wire splicing device thereof, which can achieve simple and quick connection of coil windings and can pass larger The purpose of the invention of electric current.

In order to achieve the above object, the present invention is directed to a motor stator wire splicing device, which utilizes the technical means of: providing a plurality of connecting pieces and an outer frame; each connecting piece is a metal conductor, and each connecting piece comprises a An arc segment and one or more guiding portions, the arc segment is curved in a circular arc shape along a long axis, the guiding portion is connected to the arc segment, and the arc segments of the plurality of connecting pieces of the connecting pieces are respectively extended a power input portion, the arc segments of the connecting pieces are respectively arranged at intervals and arranged to form a circular ring; the outer frame body is a circular ring body, which is made of an insulating material, and the outer frame body The connecting piece is covered, and the outer frame separates the arc segments of the connecting pieces, and the connecting portion and the power input portion of the connecting piece protrude outside the outer frame.

In the motor stator wire splicing device, the guiding portions are oriented toward a circular center of the circle formed by the connecting pieces.

In the motor stator wire splicing device, the guiding portion and the power input portion are a sheet body and are provided with a socket hole.

A motor stator having the wire splicing device, comprising a core, a plurality of coil windings, and the wire splicing device; the core is an annular hollow cylinder formed by laminating and connecting a plurality of bismuth steel sheets, the inside of the core A plurality of work-type columns are formed in a protruding manner, and each of the work-type columns is arranged along the inner circumferential wall surface of the iron core; the coil windings are respectively disposed on the work-type columns of the iron core, and each of the coil windings is respectively provided with two Leading unit The outlets are all located on the same side of the core; the wire-sending device is disposed on one side of the core, and each of the connecting portions of the connecting pieces are respectively connected to the lead portions of the coil windings.

The motor stator having a wire splicing device, wherein an outer diameter of the outer frame body is equal to or smaller than an outer diameter of the iron core.

The motor stator having a wire tying device, wherein the number of the coil windings is twelve, and the connecting piece of the wire tying device comprises three first type connecting pieces, nine second type connecting pieces and one third type a connecting piece; the first type of connecting piece comprises an arc segment, a guiding portion and a power input portion, wherein the guiding portion and the power input portion are respectively disposed at two ends of the arc segment; the second type connecting piece comprises An arc segment and two guiding portions are respectively disposed at two ends of the arc segment; the third type connecting piece includes an arc segment and three guiding portions, wherein the two guiding portions are respectively disposed at the At both ends of the arc segment, another guide is disposed at the middle of the arc segment.

By the use of the above technical means, the wire tying device is formed as a modular component, which can be directly disposed on one side of the core and connected to the coil windings, thereby effectively simplifying the installation procedure. Since each of the connecting pieces has a rectangular cross-sectional area, in the case of occupying the same spatial cross-sectional size, the cross-sectional area of the connecting piece is larger than the cross-sectional area of the circular cross-section wire used in the prior art for connecting the coil windings, and thus the wire forming device of the present invention Better conductivity is obtained with a larger cross-sectional area of the chip, which can pass a larger amount of current per unit time. Since the current value that can be input will affect the motor performance, the current value is limited by the enameled wire conductor of the coil winding. The cross-sectional area, but the larger the cross-sectional area of the enameled wire conductor, the larger the cross-sectional area of the wire-bonding device is to match the enameled wire conductor, so the wire-forming device of the present invention can Under the smallest volume, taking into account the cross-sectional area of the enameled wire conductor, the current input value is higher than that of the circular conductor, which not only provides the motor with more power, but also reduces the overall volume of the motor, and the overall width corresponds to the winding coil protrusion. Since the distance between the outer sides of the cores is such that the coil windings can be connected to each other without increasing the overall thickness of the motor stator, the power and the overall volume can be achieved, which is quite practical and convenient.

10‧‧‧ iron core

11‧‧‧Working column

20‧‧‧ coil winding

21‧‧‧Exporting Department

30‧‧‧Connecting device

31‧‧‧Connecting piece

310‧‧‧Arc Fragment

311‧‧‧Guidance

312‧‧‧Power input section

313, 314‧‧‧ sockets

32‧‧‧Outer frame

33‧‧‧first type of connecting piece

34‧‧‧Second type of connecting piece

35‧‧‧The third type of connecting piece

Figure 1 is a perspective view of the present invention.

Figure 2 is a perspective exploded view of the present invention.

Figure 3 is an exploded perspective view of the connecting piece of the present invention.

Figure 4 is a side elevational view of the present invention.

Fig. 5 is another perspective exploded view of the connecting piece of the present invention.

The present invention is a motor stator and its wire splicing device. Referring to FIGS. 1 and 2, the motor stator includes a core 10, a plurality of coil windings 20, and a wire splicing device 30.

The core 10 is a prior art, and comprises a plurality of silicon steel sheets, each of which is laminated and connected to form an annular hollow cylinder having a considerable thickness, and a plurality of working columns 11 are formed in the interior thereof, and each type is formed. The columns 11 are arranged at intervals along the inner circumferential wall surface of the core 10, and in the embodiment of the present invention, the number of the work columns 11 disposed inside the core 10 is twelve.

The coil winding 20 is formed by winding a conductive material (for example, an enameled wire) on the work pillar 11 of the core 10, and each coil winding 20 is formed. The two ends of the electrically conductive material are respectively formed as a lead portion 21 which is located at the same side of the coil winding 20. The opposite outer sides of the coil windings 20 protrude from both sides of the core 10. The number of coil windings 20 in a particular embodiment of the invention is twelve sets.

Referring to FIG. 2 to FIG. 4 , the wire tying device 30 includes a plurality of connecting pieces 31 and an outer frame 32 .

The connecting piece 31 is made of a metal conductor and includes an arc segment 310. The arc segment 310 has a long and narrow flaky shape and is curved in a circular arc shape along a long axis. The connecting piece 31 is provided with at least two guiding portions 311. The guiding portion 311 is connected to the arc segment 310 and is located on one side of the arc segment 310. The guiding portion 311 is connected to the lead portion 21 of the coil windings 20. A plurality of connecting pieces 31 of the connecting piece 31 have only one connecting piece 31 of the guiding portion 311. The arc segment 310 of the connecting piece 31 having only one guiding portion 311 extends with a power input portion 312. The power source input unit 312 corresponds to a multi-phase power source. In the embodiment of the present invention, a three-phase power source is disposed, and thus the number of the connection sheets 31 having the power source input portion 312 is three. The connection relationship and the relative position of the guiding portion 311 and the power input portion 312 of the connecting piece 31 correspond to the wire group for connecting the winding coils in the multi-phase three-phase motor of the prior art, and thus the core 10 The number of coil windings 20 provided has different connection relationships and relative positions. The arc segments 310 of the connecting pieces 31 are respectively arranged at intervals and arranged to form a circular ring. The guiding portions 311 are oriented toward the center of the circle, and the outer diameter of the ring formed by the connecting pieces 31 is slightly smaller than The outer diameter of the core 10, the width of the arc of the segment 310 of the connecting piece 31 is similar to the protruding distance of the coil winding 20 protruding from the core 10. In a specific embodiment of the present invention, the guiding portion 311 The sleeve body is provided with a socket 313. The power input portion 312 is a sheet body and is provided with a socket hole 314.

The multi-phase three-phase motor stator has a plurality of wiring modes. Taking a twelve-slot stator structure as an example, the wiring mode can be changed to become different pole numbers such as eight poles and ten poles, which are specific to the present invention. In the embodiment, the coil windings of the motor stator of the ten poles and twelve slots are taken as an example. Referring to FIG. 3 to FIG. 5 , the connecting pieces 31 can be specifically divided into the first type connecting piece 33 and the second type connecting piece. 34 and the third type of connecting piece 35.

The number of the first type of connecting pieces 33 is three, which are respectively used for connecting a three-phase power supply to one of the lead portions 21 of the coil winding 20, and includes an arc segment 310, a guiding portion 311 and a power input portion 312. The guiding portion 311 and the power input portion 312 are respectively disposed at both ends of the arc segment 310.

The number of the second type of connecting pieces 34 is nine, which are respectively used to connect one of the two coil windings 20, and the second type of connecting piece 34 includes an arc segment 310 and two guiding portions 311. The joints 311 are respectively disposed at both ends of the arc segment 310.

The third type of connecting piece 35 is one piece for connecting one of the lead portions 21 of the three-coil winding 20, and the third type connecting piece 35 includes an arc segment 310 and three guiding portions 311, wherein the two guiding portions The joint portion 311 is disposed at both ends of the arc segment 310, and the other guide portion 311 is disposed at a middle portion of the arc segment 310.

The outer frame body 32 is a circular ring body, which is made of an insulating material. The outer frame body 32 is covered by the connecting piece 31, and the outer frame body 32 is provided with a plurality of independent packages. Covering the space to cover the connecting pieces 31 The arc segment 310, thereby separating the arc segments 310 of the connecting pieces 31 so that the arc segments 310 do not contact each other, and the guiding portions 311 and the power input portion 312 of the connecting wires 31 protrude outside. Outside the frame 32. In a specific embodiment of the present invention, the outer frame body 32 is disposed on the connecting pieces 31 in a wrap-around manner. The outer frame 32 has the same center as the ring formed by the connecting pieces 31.

By the use of the above technical means, the wire tying device 30 is formed as a modular component, and can be directly disposed on one side of the core 10, and each connecting piece 31 has the same center and the core 10, and the wire splicing device 30, the lead portions 311 of the connecting pieces 31 are respectively connected to the lead portions 21 of the coil windings 20 at the adjacent positions, and the guiding portions 311 are sleeved with the lead portions 21 through the sleeve holes 313. The electrical connection between the coil windings 20, thereby providing a quick connection between the coil windings 20 through the junction forming device 30, effectively simplifies the installation procedure. A larger amount of current can be passed in a unit time, since the current value that can be input will affect the motor performance, and the current value is limited by the cross-sectional area of the enameled wire conductor of the coil winding 20, but the larger the cross-sectional area of the enameled wire conductor is, Therefore, the cross-sectional area of the wire tying device needs to be larger to match the enamel wire conductor. Therefore, the wire splicing device of the present invention can take into account the cross-sectional area of the enamel wire conductor in a minimum volume, and can input a higher current value than the circular conductor, and provide not only The motor has more power, and at the same time takes into account the reduction of the overall volume of the motor, and the overall width corresponds to the distance of the winding coil protruding from the outside of the core, so that the wire winding device can reciprocate the coil windings without increasing the overall thickness of the motor stator The connection is capable of balancing both power and overall volume, and is quite practical and convenient.

Each of the connecting pieces 31 has a rectangular cross-sectional area. When occupying the same spatial cross-sectional size, the rectangular cross-section can obtain a larger area ratio than the circular cross-section, so that it can have better electrical conductivity and can be used in unit time. It passes a larger amount of current and is therefore more suitable for high-power motors. Since the current value that can be input will affect the motor performance, and the current value is limited by the cross-sectional area of the enameled wire conductor of the coil winding 20, the larger the cross-sectional area of the enameled wire conductor, the larger the cross-sectional area of the wire bonding device 30 is to be The enameled wire conductors are matched with each other, so that the wire splicing device 30 of the present invention can take into account the cross-sectional area of the enamel wire conductor in a minimum volume, and can input a higher current value than the circular conductor, not only providing the motor with more power, but also taking into consideration The overall size of the motor is reduced.

The overall width of each of the connecting pieces 31 of the wire tying device 30 corresponds to the distance that the winding coil 20 protrudes outside the core 10, so that the wire tying device 30 can connect the coil windings 20 to each other without increasing the overall thickness of the motor stator. The width of the curved piece 310 of the connecting piece 31 is approximately proportional to the amount of current that can be tolerated. As the input current specification is larger, the distance between the coil winding 20 and the protrusion of the core 10 is larger, and the curved piece is larger. 310 can be set to have a larger width and thus has electrical conductivity corresponding to the current specification.

The above is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention. Although the present invention has been disclosed in the above preferred embodiments, it is not intended to limit the present invention. A person skilled in the art can make some modifications or modifications to equivalent embodiments by using the above-disclosed technical contents without departing from the technical scope of the present invention. It is still within the scope of the technical solution of the present invention to make any simple modifications, equivalent changes and modifications to the above embodiments.

10‧‧‧ iron core

11‧‧‧Working column

20‧‧‧ coil winding

21‧‧‧Exporting Department

30‧‧‧Connecting device

31‧‧‧Connecting piece

311‧‧‧Guidance

312‧‧‧Power input section

32‧‧‧Outer frame

Claims (7)

A motor stator wire splicing device comprising a plurality of connecting pieces and an outer frame; each connecting piece is a metal conductor, each connecting piece comprises an arc segment and one or more guiding portions, the arc segment is bent along a long axis The arc-shaped portion is connected to the arc segment, and a plurality of power input portions are respectively extended on the arc segments of the plurality of connecting pieces, and the arc segments of the connecting pieces are respectively arranged and arranged at intervals Forming a circular ring; the outer frame body is a circular ring body, which is made of an insulating material, the outer frame body is wrapped around the connecting pieces, and the outer frame body separates the connecting pieces The arc segments, the guiding portions of the connecting pieces and the power input portion protrude outside the outer frame. The motor stator wire splicing device of claim 1, wherein the guiding portions are oriented toward a center of a circle formed by the connecting pieces. The wire winding device of the motor stator according to claim 1 or 2, wherein the guiding portion is a sheet body and is provided with a socket hole. The motor stator wire splicing device of claim 3, wherein the power input portion is a sheet body and is provided with a socket hole. A motor stator having the wire splicing device according to any one of claims 1 to 4, comprising a core, a plurality of coil windings, and the wire tying device; the core is a ring formed by laminating and joining a plurality of bismuth steel sheets a hollow cylinder, the inner portion of the iron core is formed with a plurality of work-type columns, and each of the work-type columns is arranged along the inner circumferential wall surface of the iron core; the coil windings are respectively disposed on the work-type columns of the iron core, each The coil windings are respectively provided with two lead-out portions, and each lead-out portion is located at the same side of the iron core; the wire-bonding device is disposed on one side of the iron core, and each of the connecting portions of the connecting pieces respectively connect the coil windings Lead-out. A motor stator having a wire tying device according to claim 5, wherein an outer diameter of the outer frame is equal to or smaller than an outer diameter of the core. A motor stator having a wire tying device according to claim 5 or 6, wherein the number of the coil windings is twelve, and the connecting piece of the wire tying device comprises three first type connecting pieces and nine second type connecting pieces. And a third type of connecting piece; the first type connecting piece comprises an arc segment, a guiding portion and a power input portion, wherein the guiding portion and the power input portion are respectively disposed at two ends of the arc segment; The second type of connecting piece comprises an arc segment and two guiding portions, wherein the two guiding portions are respectively disposed at two ends of the arc segment; the third type connecting piece comprises an arc segment and three guiding portions, wherein the two guiding portions The joints are respectively disposed at both ends of the arc segment, and the other guide portion is disposed at a middle portion of the arc segment.