CN203933206U - Fixed structure of motor stator winding end - Google Patents

Abstract

The utility model discloses a fixed knot of motor stator winding end constructs mainly includes: a plurality of conductive strips and a plurality of fixing seats. The conductive strips are flat, each conductive strip is provided with an embedded section, two bending sections and two extending sections, and the tail end of each extending section forms a junction part. The fixing seats are superposed in a layered mode and fixed on the motor stator, each fixing seat forms a plurality of caulking grooves, the shape of each caulking groove is matched with the shape of the embedding section and the shape of the two bending sections of each conducting bar, the embedding section and the two bending sections of each conducting bar are completely embedded into each caulking groove, and each two extending sections are located outside each fixing seat. Therefore, each conducting bar is flat and matched with the shape of each caulking groove, so that each conducting bar has a good fixing effect after being embedded into each caulking groove, is not easy to loosen, and fixes each winding end of the motor stator by each wiring part.

Description

Fixed structure of motor stator winding end

technical field

The utility model relates to the fixing of the winding end of the motor stator, in particular to a fixing structure of the winding end of the motor stator.

Background technique

U.S. Patent No. US2010141067A1 discloses a rotating electrical machine (Rotating electrical machine), wherein the rotating electrical machine includes a stator (stator) with winding terminals (winding terminals) connected to conductive members (conductive members), and the connection unit (connection unit) consists of The connection substrate is composed of a conductive member. The connection substrate is provided with a plurality of circumferential grooves and a plurality of radial grooves. The conductive member is installed in the plurality of circumferential grooves, and the conductive member A bend portion protrudes from the radial groove, and the wire connection process is to connect the bend portion of the conductive member to the winding end of the stator winding.

The above-mentioned existing conductive member is formed by bending a copper bar, and the conductive member is installed in the plurality of circumferential grooves. Since the cross section of the copper bar is circular, the outer edge of the circle is in contact with the circumferential grooves. Therefore, the The copper bars are easy to loosen from the circumferential groove, and there is still room for improvement in the stator wiring structure of the rotating electrical machine.

Utility model content

The main purpose of the utility model is to provide a fixing structure for the winding end of the motor stator, so that it has a good fixing effect and is not easy to loosen.

In order to achieve the above purpose, the utility model provides a fixing structure of a winding end of a motor stator, which is mounted on a motor stator. The fixing structure of the winding end of a motor stator includes a plurality of conductive strips and a plurality of fixing seats. Each of the plurality of conductive strips is flat, and each of the conductive strips defines an embedded section, two bent sections, and two extended sections. The two ends of each embedded section extend to form the bent section, and the ends of each bent section form a The protruding sections, the ends of each of the protruding sections form a knotting portion. The plurality of fixed seats are stacked in layers and fixed on the motor stator. Each of the fixed seats forms a plurality of slots, and the shape of each slot is the same as that of the embedded section and the two bent sections of each conductive strip. Matching, the embedded section and the two bent sections of each conductive strip are completely embedded in each of the slots, and each of the two protruding sections is located outside each of the fixing seats.

Preferably, the cross-section of each of the conductive strips is rectangular, and the width of the cross-section of each of the conductive strips is greater than its height.

Preferably, the cross-section of each of the conductive strips is rectangular, and the height of the cross-section of each of the conductive strips is greater than its width.

Preferably, each of the connecting portions is arranged at intervals, and the connecting portions of the conductive strips on different layers are staggered in the vertical direction.

Preferably, each of the tie portions is in the shape of a hook.

Preferably, a plurality of the conductive strips integrally form a ring-shaped conductive strip and are arranged in a circular shape, and the plurality of conductive strips are connected with each of the connecting parts, and two of the connecting parts are not connected.

Preferably, the fixing structure of the winding end of the motor stator further includes an upper cover covering the top of the plurality of fixing seats.

In the fixing structure of the motor stator winding end of the utility model, the conductive strip is flat and matches the shape of the slot. Therefore, after the conductive strip is embedded in the slot, it has a good fixing effect and is not easy to loosen. The connection part fixes each winding end of the motor stator.

The utility model will be described in detail below in conjunction with the accompanying drawings and specific embodiments, but not as a limitation of the utility model.

Description of drawings

FIG. 1 is a three-dimensional exploded view of the first preferred embodiment of the present invention, showing the three-dimensional view of the conductive strip and the fixing seat.

FIG. 2 is a cross-sectional view of section 2-2 in FIG. 1, showing a cross-section of the conductive strip.

Fig. 3 is a schematic view of the combination of the first preferred embodiment of the present invention, showing the combined state of the conductive strip and the fixing seat.

Fig. 4 is a combined schematic view of the first preferred embodiment of the present invention, showing the state of multiple fixed seats stacked in layers.

FIG. 5 is a combined schematic view of the first preferred embodiment of the present invention, showing a state in which a plurality of fixing seats are fixed on the motor stator.

Fig. 6 is a combined schematic view of the second preferred embodiment of the present invention, showing the state of the upper cover closing the fixing seat.

FIG. 7 is an exploded perspective view of the third preferred embodiment of the present invention, showing the perspective view of the annular conductive strip, the fixing seat, the conductive strip and the motor stator.

FIG. 8 is an exploded perspective view of the third preferred embodiment of the present invention, showing the perspective view of the ring-shaped conductive strip and the fixing seat.

FIG. 9 is a cross-sectional view of section 9-9 in FIG. 8, showing a cross-section of the ring-shaped conductive strip.

Fig. 10 is a combined schematic view of the third preferred embodiment of the present invention, showing the state where the upper cover is closed on the fixing seat.

Among them, reference signs:

100, 200, 300 The fixed structure of the stator winding end of the motor

10 conductive strips

11 Embedded section

12 bends

14 protruding section

16 Wiring part

20 Holder

21 socket

30 Motor stator

31 Winding end

40 cover

50 ring conductive strips

W1, W2 width

HI, H2 Height

Detailed ways

In order to describe the technical characteristics of the present utility model in detail, the following preferred embodiments are given and illustrated as follows in conjunction with the drawings, wherein:

As shown in FIGS. 1 to 5 , a fixing structure 100 for winding ends of a motor stator provided by the first preferred embodiment of the present invention is cooperatingly installed on a motor stator 30 . The fixing structure 100 of the winding end of the motor stator is mainly composed of a plurality of conductive strips 10 and a plurality of fixing seats 20 .

Each of the plurality of conductive strips 10 is flat, and each of the conductive strips 10 defines an embedded section 11 , two bent sections 12 and two extended sections 14 , as shown in FIG. 1 . Two ends of each embedded section 11 extend to form a bent section 12 , each bent section 12 extends to form an extending section 14 , and a terminal of each extending section 14 forms a connecting portion 16 . In the first preferred embodiment, each of the connecting portions 16 is in the shape of a hook. In addition, the cross-section of each of the conductive strips 10 is rectangular, and the width W1 of the cross-section of each of the conductive strips 10 is greater than the height H1, as shown in FIG. 2 . In addition, each conductive strip 10 cannot be a sheet, because its cross-sectional area must have a certain size to be suitable for the high current requirement of the winding of the motor stator 30 .

The plurality of fixing seats 20 are stacked in layers and fixed on the motor stator 30. As shown in FIG. 5, each of the fixing seats 20 forms a plurality of slots 21. As shown in FIG. Matching with the shape of the embedded section 11 and the two bent sections 12 of each conductive strip 10, the embedded section 11 and the two bent sections 12 of each conductive strip 10 are completely embedded in each of the embedded grooves 21, as shown in the figure 3, each of the two extensions 14 is located outside each of the fixing seats 20. In the first preferred embodiment, the connection portions 16 are arranged at intervals, and the connection portions 16 of the conductive strips 10 on different layers are staggered in the vertical direction, as shown in FIG. 4 .

The structure of the first preferred embodiment of the utility model has been described above, and the use status of the first preferred embodiment of the utility model will be described next.

Please refer to Fig. 1 to Fig. 5, put each conductive strip 10 into the slot 21 of each fixing base 20, each embedded section 11 and each bent section 12 are completely embedded in each slot 21, each The protruding sections 14 are respectively located outside each of the fixing seats 20, as shown in Figure 3, because each of the conductive strips 10 is flat, and the cross-section of each of the conductive strips 10 is rectangular, as shown in Figure 2, because each of the conductive strips The width W1 of the cross-section of the strip 10 is greater than the height H1, and the shape of each conductive strip 10 matches the shape of each of the slots 21. Therefore, each conductive strip 10 has a good fixing effect after being embedded in each of the slots 21, and is not easy to loose , and then, a plurality of the fixed seats 20 are stacked in layers, as shown in Figure 4, and then the plurality of fixed seats 20 are placed above the motor stator 30, as shown in Figure 5, the motor stator 30 has multiple A winding end 31, each of the winding ends 31 is fixed through each of the binding parts 16.

It can be seen from the above that the effect that the utility model can achieve is: solve the problem that the copper strip cross section of the conductive member in the prior art is circular, and the circular outer edge is in contact with the circumferential groove, so the copper strip is easy to contact with the circumferential direction groove For the loosening of the grooves in the circumferential direction, the conductive strips 10 of the present utility model are flat and match the shapes of the slots 21. Therefore, each conductive strip 10 is well fixed after being embedded in the slots 21. As a result, it is not easy to loosen, and each of the winding ends 31 of the motor stator 30 is fixed by each of the connection portions 16 .

In the above description, the plurality of conductive strips 10 and the plurality of fixing seats 20 can also be made by insert molding. The plurality of conductive strips 10 are put into a mold (not shown in the figure), and the plurality of fixing seats 20 are ejected with plastic, and the plurality of conductive strips 10 are integrated with the plurality of fixing seats 20 .

Please refer to Fig. 6, the second preferred embodiment of the present invention provides a fixing structure 200 for the winding end of the motor stator, which is basically the same as the first embodiment disclosed above, except that:

The fixing structure 200 of the winding end of the motor stator further includes an upper cover 40 covering the top of the plurality of fixing seats 20 .

The rest of the structures and functions of the second embodiment are the same as those of the first embodiment disclosed above, and will not be repeated here.

The structure of the second preferred embodiment of the utility model has been described above, and the usage status of the second preferred embodiment of the utility model will be described next.

Please refer to FIG. 5 and FIG. 6 , the upper cover 40 covers the top of the plurality of fixing seats 20 to seal the embedded section 11 and the two bent sections 12 of each of the conductive strips 10 .

It can be seen from the above that the upper cover 10 has the function of protecting each of the conductive strips 10 on the top of the plurality of fixing seats 20 .

Please refer to Fig. 7 to Fig. 10, a motor stator winding end fixing structure 300 provided by the third preferred embodiment of the present invention is basically the same as the first embodiment disclosed above, the difference lies in:

A plurality of the conductive strips 10 integrally form an annular conductive strip 50, and are arranged in a ring, as shown in FIG. not connected. In addition, the cross-section of each of the conductive strips 10 is rectangular, and the height H2 of the cross-section of each of the conductive strips 10 is greater than the width W2, as shown in FIG. 9 .

The structure of the third preferred embodiment of the utility model has been described above, and the use status of the third preferred embodiment of the utility model will be described next.

Please refer to Fig. 7 to Fig. 10, put this ring-shaped conductive strip 50 in the embedded groove 21 of this fixing seat 20, as shown in Fig. The height H2 of the surface is greater than the width W2, as shown in Figure 9, the ring-shaped conductive strip 50 matches the shape of each of the embedding grooves 21, so it has a good fixing effect, and then, the fixed ring-shaped conductive strip 50 that has been embedded The seat 20 is placed on the uppermost layer of the plurality of fixed seats 20. As shown in FIG. The connecting portion 16 is a common terminal for grounding.

It can be seen from the above that each of the conductive strips 10 integrally forms an annular conductive strip 50, therefore, the annular conductive strip 50 can be installed in one of the fixing seats 20 at one time, compared with the plurality of conductive strips in the first embodiment The bars 10 must be assembled in the slots 21 of the fixing bases 20 respectively, and the ring-shaped conductive bar 50 can be assembled conveniently. The height H2 of each conductive strip 10 cross-section of the annular conductive strip 50 is greater than the width W2, therefore, the depth of each embedded groove 21 matches the height of each conductive strip 10, so that each conductive strip 10 can have a better fixing effect .

The rest of the structure and functions of the third embodiment are the same as those of the first embodiment disclosed above, and will not be repeated here.

Certainly, the present utility model also can have other various embodiments, without departing from the spirit and essence of the present utility model, those skilled in the art can make various corresponding changes and deformations according to the present utility model, but these Corresponding changes and deformations should all belong to the protection scope of the claims of the present invention.

Claims (7)

1. A fixed structure of the winding end of the motor stator, which is installed on a motor stator, is characterized in that the fixed structure of the winding end of the motor stator includes: A plurality of conductive strips, each in a flat shape, each of the conductive strips defines an embedded section, two bent sections and two extended sections, the two ends of each embedded section extend to form the bent section, and each of the bent sections extends to form the protruding segments, the ends of each protruding segment forming a knot; and A plurality of fixed bases are stacked in layers and fixed on the motor stator. Each of the fixed bases forms a plurality of slots. Matching, the embedded section and the two bent sections of each conductive strip are completely embedded in each of the slots, and each of the two protruding sections is located outside each of the fixing seats. 2 . The fixing structure of the winding end of the motor stator according to claim 1 , wherein the cross-section of each conductive strip is rectangular, and the width of the cross-section of each conductive strip is greater than the height. 3 . 3 . The fixing structure of motor stator winding end according to claim 1 , wherein the cross-section of each conductive strip is rectangular, and the height of the cross-section of each conductive strip is greater than the width. 4 . 4 . The fixing structure of the motor stator winding end according to claim 1 , wherein each of the connection portions is arranged at intervals, and the connection portions of the conductive strips on different layers are staggered in the vertical direction. 5 . The fixing structure of the winding end of the motor stator according to claim 1 , wherein each of the connecting portions is hook-shaped. 6 . 6. The fixing structure of the motor stator winding end according to claim 1, characterized in that, a plurality of the conductive strips integrally form a ring-shaped conductive strip, and are arranged in a ring, and each of the plurality of conductive strips is formed by the junction The wires are connected, and the two wires are not connected. 7 . The fixing structure of the winding end of the motor stator according to claim 1 , further comprising an upper cover covering the top of the plurality of fixing seats. 8 .