TWM487574U - Fixing structure of motor stator winding end - Google Patents

Description

Fixed structure of motor stator winding end

This creation is related to the fixing of the winding end of the motor stator, especially the fixed structure of the winding end of the motor stator.

US Patent No. 2010141067A1 discloses a Rotating electrical machine in which a rotating electrical machine includes a winding terminal of a stator (Fig. 2) (Fig. 22a), (Fig. 22b) Connecting conductive members (Fig. 32), the connection unit (Fig. 3) is composed of a connection substrate (Fig. 31) and a conductive member, and the junction substrate is provided with a plurality of circumferential directions (circumferential And a plurality of radial grooves (FIG. 31b), the conductive members (31a, 31b, 31c) are mounted to the plurality of circumferential grooves, and a bend portion of the conductive member (Fig. 32e) protrudes from the radial groove, and the wire bonding process connects the bent portion of the conductive member to the winding end of the stator winding (Fig. 22).

The conventional conductive member is formed by bending a copper strip, and the conductive member is mounted on the plurality of circumferential grooves. Since the copper strip has a circular cross section and the circular outer edge is in contact with the circumferential groove, the copper is The strip is easily released from the circumferential groove, and the stator wire structure of the rotating electrical machine still has room for improvement.

The main purpose of the present invention is to provide a fixed structure of the winding end of the motor stator. The conductive strip is flat and fits with the shape of the recessed groove. Therefore, the conductive strip has a good fixing effect after being embedded in the recessed groove, and is not easy to loosen. And fixing the winding ends of the motor stator by the respective knotting portions.

According to the present invention, a fixed structure of a motor stator winding end provided by the present invention is mounted on a motor stator. The fixed structure of the motor stator winding end includes: a plurality of conductive strips and a plurality of fixing bases. Each of the conductive strips has a flat shape, and each of the conductive strips defines an embedded section, two bent sections and two extended sections, and the two ends of each of the embedded sections respectively extend to form a bent section, and each of the bent sections The end portion forms a protruding portion, and the end of each of the protruding portions forms a knot portion. The fixing bases are stacked and fixed on the motor stator, and each of the fixing seats forms a plurality of slots, and the shape of each of the slots is matched with the embedded section of each of the conductive strips and the shape of the two bending sections. The embedding section and the two bending sections of each of the conductive strips are completely embedded in each of the cavities, and each of the two protruding sections is located outside each of the fixing seats.

Therefore, the conductive strip of the present invention has a flat shape and cooperates with the shape of the recessed groove. Therefore, the conductive strip has a good fixing effect after being embedded in the recessed groove, and is not easy to loose, and the motor is fixed by each of the knotting portions. Each of the winding ends of the stator.

Preferably, each of the conductive strips has a rectangular cross section, and each of the conductive strips has a width greater than a height.

Preferably, each of the conductive strips has a rectangular cross section, and each of the conductive strips has a height greater than a width.

Preferably, each of the junction portions is spaced apart, and the junction portions of the conductive strips located in different layers are staggered in the vertical direction.

Preferably, each of the knotting portions has a hook shape.

Preferably, the plurality of conductive strips integrally form an annular conductive strip, and are arranged in a ring shape, and the conductive strips are connected by the respective line connecting portions thereof, wherein the two connecting portions are not connected.

Preferably, the fixing structure of the winding end of the motor stator further comprises an upper cover covering the uppermost of the fixing seats.

Fixed structure of 100, 200, 300‧‧‧ motor stator winding ends

10‧‧‧ Conductive strip

11‧‧‧ embedded section

12‧‧‧Bend section

14‧‧‧Extension

16‧‧‧Connecting Department

20‧‧‧ Fixed seat

21‧‧‧Inlay

30‧‧‧Motor stator

31‧‧‧ Winding end

40‧‧‧Upper cover

50‧‧‧Circular Conductive Strips

W1, W2‧‧‧ width

HI, H2‧‧‧ height

1 is an exploded perspective view of a first preferred embodiment of the present invention, showing a perspective view of a conductive strip and a mount.

Figure 2 is a cross-sectional view taken along line 1-2 of Figure 1 showing the cross section of the conductive strip.

Figure 3 is a schematic view showing the combination of the first preferred embodiment of the present invention, showing the state of the combination of the conductive strip and the mount.

Fig. 4 is a schematic view showing the combination of the first preferred embodiment of the present invention, showing the state in which the plurality of fixed blocks are stacked.

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

Figure 6 is a schematic view showing the combination of the second preferred embodiment of the present invention, showing the state in which the upper cover covers the fixed seat.

Figure 7 is a perspective exploded view of the third preferred embodiment of the present invention, showing a perspective view of the annular conductive strip, the fixed seat, the conductive strip and the motor stator.

Figure 8 is a perspective exploded view of the third preferred embodiment of the present invention, showing a perspective view of the annular conductive strip and the fixed seat.

Figure 9 is a cross-sectional view taken along line 8-9 of Figure 8 showing the cross section of the annular conductive strip.

Figure 10 is a schematic view showing the combination of the third preferred embodiment of the present invention, showing the state in which the upper cover covers the fixed seat.

In order to explain in detail the technical characteristics of this creation, the following are preferred. The embodiment and the accompanying drawings are as follows, wherein: as shown in FIG. 1 to FIG. 5, a fixed structure 100 of a motor stator winding end provided by the first preferred embodiment of the present invention is fitted to 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 bases 20.

The conductive strips 10 are each in a flat shape, 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. The two ends of the embedded segments 11 respectively extend to form a bent portion 12, and each of the bent portions 12 extends to form a protruding portion 14, and a tip portion 16 is formed at an end of each of the protruding portions 14. In the first preferred embodiment, each of the knot portions 16 is hook-shaped. In addition, each of the conductive strips 10 has a rectangular cross section, 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. In addition, each of the conductive strips 10 cannot be a sheet because its cross-sectional area must be of a certain size to be suitable for the high current demand of the motor stator 30 winding.

The fixing bases 20 are stacked and fixed on the motor stator 30. As shown in FIG. 5, each of the fixing bases 20 forms a plurality of slots 21, as shown in Fig. 1, each of the slots 21 The shape is matched with the shape of the embedded portion 11 and the two bent segments 12 of each of the conductive strips 10. The embedded portion 11 and the two bent portions 12 of each of the conductive strips 10 are completely embedded in each of the embedded grooves 21, such as As shown in FIG. 3, each of the two protruding sections 14 is located outside each of the fixing bases 20. In the first preferred embodiment, each of the junction portions 16 is spaced apart, and the junction portions 16 of the conductive strips 10 located in different layers are staggered in the vertical direction, as shown in FIG.

The structure of the first preferred embodiment of the present invention has been described above, and the state of use of the first preferred embodiment of the present invention will be described next.

Referring to FIG. 1 to FIG. 5 , each of the conductive strips 10 is placed in the recess 21 of each of the fixing bases 20 , and each of the inserting sections 11 and each of the bent sections 12 are completely embedded in the recessed slots 21 . Each of the protruding segments 14 is located outside each of the fixing bases 20. As shown in FIG. 3, each of the conductive strips 10 has a flat shape, and each of the conductive strips 10 has a rectangular cross section, as shown in FIG. As shown, since the width W1 of the cross section of each of the conductive strips 10 is greater than the height H1, each of the conductive strips 10 cooperates with the shape of each of the embedded grooves 21, and therefore, each of the conductive strips 10 is embedded. Each of the cavities 21 has a good fixing effect and is not easy to loosen. Then, a plurality of the fixing seats 20 are stacked, as shown in FIG. 4, and then the fixing seats 20 are placed on the motor stator 30. Above, as shown in Fig. 5, the motor stator 30 has a plurality of winding ends 31, and each of the winding ends 31 is fixed to each of the wire-bonding portions 16.

As can be seen from the above, the achievable effect of the present invention is that the copper strip of the prior art has a circular cross section, and the circular outer edge is in contact with the circumferential groove. Therefore, the copper strip is easy to The problem that the circumferential groove is loose, each of the conductive strips 10 of the present invention has a flat shape, and cooperates with the shape of each of the embedded grooves 21. Therefore, each of the conductive strips 10 is embedded in each of the embedded grooves 21 and has a good fixing. The effect is that it is not easy to loosen, and each of the winding ends 31 of the motor stator 30 is fixed by each of the knot portions 16.

In the above description, the conductive strips 10 and the fixing bases 20 can also be formed by insert molding. The conductive strips 10 are placed in a mold (not shown), and the fixing bases 20 are ejected by plastic, and the conductive strips 10 are integrated with the fixing bases 20.

Referring to FIG. 6 , a second preferred embodiment of the present invention provides a fixed structure 200 for a motor stator winding end, which is mainly similar to the first embodiment disclosed above, except that the motor stator winding end is The fixing structure 200 further includes an upper cover 40 covering the uppermost of the fixing seats 20.

The remaining structure of the second embodiment and the achievable effects are the same as those of the first embodiment, and will not be further described.

The structure of the second preferred embodiment of the present invention has been described above, and the state of use of the second preferred embodiment of the present invention will be described next.

Referring to FIG. 5 and FIG. 6 , the upper cover 40 covers the uppermost of the fixing seats 20 to close the embedded section 11 and the two bending sections 12 of each of the conductive strips 10 .

As can be seen from the above, the upper cover 10 has the effect of protecting the conductive strips 10 at the top of the fixing seats 20.

Referring to FIG. 7 to FIG. 10, a third preferred embodiment of the present invention provides a fixed structure 300 for a motor stator winding end, which is mainly similar to the first embodiment disclosed above, except that: The plurality of conductive strips 10 are integrally formed into an annular conductive strip 50, and are arranged in a ring shape. As shown in FIG. 8, the conductive strips 10 are connected by the respective line connecting portions 16, wherein the two connecting portions 16 are not connected. . In addition, each of the conductive strips 10 has a rectangular cross section, 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.

The structure of the third preferred embodiment of the present invention has been described above, and the state of use of the first preferred embodiment of the present invention will be described next.

Referring to FIG. 7 to FIG. 10, the annular conductive strip 50 is placed in the recess 21 of the fixing base 20. As shown in FIG. 8, each of the conductive strips 10 has a rectangular cross section. The height H2 of the cross section of the conductive strip 10 is greater than the width W2. As shown in FIG. 9, the annular conductive strip 50 cooperates with the shape of each of the recesses 21, and therefore has a good fixing effect, and then will be embedded. The fixing seat 20 of the annular conductive strip 50 is placed on the uppermost layer of the fixing bases 20. As shown in FIG. 10, the winding ends 31 of the motor stator 30 are respectively fixed to the respective connecting portions 16 for fixing. The junction portion 16 of the annular conductive strip 50 is a common terminal of the ground.

As can be seen from the above, each of the conductive strips 10 integrally forms an annular conductive strip 50. Therefore, the annular conductive strip 50 can be installed in the fixing base 20 at one time, compared to the conductive strips in the first embodiment. 10 must be separately assembled to each of the recesses 21 of each of the fixing bases 20, and the annular conductive strips 50 can have assembly convenience. The height H2 of the cross-section of each of the conductive strips 10 is greater than the width W2. Therefore, the depth of each of the recesses 21 matches the height of each of the conductive strips 10, so that the conductive strips 10 can be better fixed. effect.

The remaining structure of the third embodiment and the achievable effects are the same as those of the first embodiment, and will not be further described.

100‧‧‧Fixed structure of motor stator winding end

10‧‧‧ Conductive strip

11‧‧‧ embedded section

12‧‧‧Bend section

14‧‧‧Extension

16‧‧‧Connecting Department

20‧‧‧ Fixed seat

21‧‧‧Inlay

Claims (7)

A fixed structure of a winding end of a motor stator is mounted on a motor stator. The fixed structure of the winding end of the motor stator includes: a plurality of conductive strips, each of which has a flat shape, and each of the conductive strips defines an embedded section And a second protruding portion, wherein the two ends of each of the embedded segments respectively extend to form a bending portion, each of the bending segments extending to form a protruding portion, and a protruding line is formed at an end of each protruding portion And a plurality of fixing bases, which are stacked and fixed on the motor stator, each of the fixing seats forms a plurality of slots, the shape of each of the slots and the embedded section and the two bending sections of each of the conductive strips The embedded segments and the two bent segments of each of the conductive strips are completely embedded in the respective recesses, and the two protruding segments are located outside the respective fixed seats. According to the fixed structure of the motor stator winding end of the first aspect of the patent application, wherein the conductive strips have a rectangular cross section, and the width of each of the conductive strips is greater than the height. The fixing structure of the winding end of the motor stator according to the first aspect of the patent application, wherein: 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 the width. The fixing structure of the motor stator winding end according to the first aspect of the patent application, wherein each of the connecting portions is spaced apart, and the connecting portions of the conductive strips located in different layers are staggered in the vertical direction. The fixing structure of the motor stator winding end according to the first aspect of the patent application, wherein each of the knotting portions is hook-shaped. The fixed structure of the motor stator winding end according to the first aspect of the patent application, wherein: the plurality of conductive strips integrally form an annular conductive strip, and are arranged in a ring shape, and the conductive strips are connected by each of the connecting lines Two of the junctions are not connected. According to the fixing structure of the motor stator winding end of the first application of the patent scope, an upper cover is further included to cover the uppermost of the fixing seats.