TWI872489B - Motor stator structure, mothed and combined core thereof - Google Patents

Abstract

A motor stator structure includes a combined core, a plurality of insulated wire frames and a plurality of coil pack. The combined core having a plurality of iron parts. The iron part includes a straight tooth, a transverse shoe and a transverse arc body. The straight tooth having a groove and a bump. The bump snap into the groove. The bump snap into the groove so that the transverse arc body form a ring yoke. The insulated wire frame is set in the iron part. The coil pack is wound around the insulated wire frame.

Description

Motor stator structure and its combined iron core and manufacturing method

The present invention relates to a stator structure, and in particular to a motor stator structure and its combined iron core and manufacturing method.

The stator of the existing automotive motor is mainly wound around the iron core wire frame through each coil group (i.e. U-phase, V-phase and W-phase coils), and then each coil group is connected to the cable. The three-phase AC and the coils create a rotating magnetic field, so that the stator and rotor of the motor rotate relative to each other and serve as a power source.

However, the structural design of the iron core wire frame requires sufficient working space to provide winding for each coil group, and due to the small working space, the coil group must be wound manually, resulting in the stator structure being unable to reduce the volume and automated manufacturing.

In view of this, the inventor has devoted himself to the research and application of the above existing technologies, trying his best to solve the above problems, which has become the development goal of the inventor.

The present invention provides a motor stator structure and its assembled iron core and manufacturing method, which utilizes each coil group to be firstly wound on each insulating wire frame sleeved on the outside of each assembled iron piece, and then assembles a plurality of assembled iron pieces into an assembled iron core, so as to achieve the advantages of the motor stator structure having a reduced volume and convenient automated manufacturing process.

In an embodiment of the present invention, the present invention provides a motor stator structure, comprising: a modular iron core, including a plurality of sets of connecting iron pieces, each of the sets of connecting iron pieces having a straight tooth portion and a transverse boot portion and a transverse arc-shaped body extending from both ends of the straight tooth portion, each of the transverse arc-shaped bodies having a groove at one end and a protrusion matching the shape of the groove at the other end, each of the protrusions being engaged with each of the grooves so that each of the transverse arc-shaped bodies overlaps to form an annular yoke; a plurality of insulating wire frames, respectively sleeved on each of the sets of connecting iron pieces; And a plurality of coil groups, wound around the plurality of insulating wire racks; wherein, each of the transverse arc bodies is provided with a U-shaped cutout groove on the outer side away from each of the transverse boots, and each of the upper and lower sides of the straight teeth is provided with a fixing hole inwardly, and each of the insulating wire racks includes a pair of U-shaped sleeves sleeved on the upper and lower sides of each of the connecting iron parts, and each pair of U-shaped sleeves has a pair of protruding columns extending from the inner side thereof and engaging with each of the fixing holes, and each pair of U-shaped sleeves has a pair of wavy notches at one end of the outer side thereof, exposing each of the grooves, each of the protruding blocks and each of the U-shaped cutout grooves.

In the embodiment of the present invention, the present invention provides a modular iron core of a motor stator structure, including: a plurality of connecting iron parts, each of which has a straight tooth portion and a transverse boot portion and a transverse arc body extending from both ends of the straight tooth portion, each of which has a groove at one end and a convex block matching the shape of the groove at the other end, each of which is engaged with each of the grooves to overlap each of the transverse arc bodies to form an annular yoke; wherein each of the transverse arc bodies has a U-shaped cut groove on the outer side away from each of the transverse boot portions, and each of the straight tooth portions has a fixing hole inwardly provided on the upper and lower sides.

In an embodiment of the present invention, a method for manufacturing a motor stator structure is provided, wherein the steps include: a) providing a plurality of sets of connecting pieces, each of which has a straight tooth portion and a transverse boot portion and a transverse arc-shaped body extending from both ends of the straight tooth portion, one end of each transverse arc-shaped body is provided with a groove , the other end has a protrusion matching the shape of the groove, and the outer side surface away from each transverse boot portion is provided with a U-shaped section groove, and the inner side wall of each groove extends with a pair of oppositely arranged tenons, The outer side wall of each protrusion is provided with a pair of grooves arranged opposite to each other, and the upper and lower sides of each straight tooth portion are provided with a fixing hole inwardly; b) providing a plurality of insulating wire racks, each of which includes a pair of U-shaped sleeves sleeved on the upper and lower sides of each assembly iron piece, and each pair of U-shaped sleeves has a pair of protrusions extending from the inner side thereof and engaging with each of the fixing holes, and each pair of U-shaped sleeves has a bare recessed end on one end thereof. c) providing a plurality of coil assemblies, winding each coil assembly around each insulating wire frame; and d) engaging each of the protrusions with each of the grooves and each of the pairs of tenons with each of the pairs of grooves from a vertical direction, so that the plurality of transverse arc bodies are overlapped to form an annular yoke, and the plurality of assembled iron parts are assembled to form a modular iron core.

Based on the above, each coil group is first wound on each insulating wire frame sleeved on the outside of each set of connecting iron parts, and then multiple sets of connecting iron parts are assembled into a modular iron core, so that the groove formed between the annular yoke and each adjacent two straight teeth does not need to reserve a winding operation space, so that the groove can be reduced, thereby reducing the volume of the motor stator structure, and a single coil group is wound on a single set of connecting iron parts, and multiple sets of connecting iron parts are assembled into a modular iron core through an automated process, so as to achieve the advantages of the motor stator structure of the present invention with reduced volume and convenient automated process.

10: Motor stator structure

1: Combined iron core

11: Assemble iron parts

12: Straight to the teeth

121:Fixing hole

13: Horizontal boots

14: Horizontal arc

141: Groove

1411: Tenon

142: Bump

1421: Card groove

143: U-shaped groove

15: Ring yoke

2: Insulation wire rack

21: U-shaped sleeve

22: convex column

23: Wave-shaped gap

24: Cable management block

3: Coil set

s: container

100: Rotor

a~d: Steps

Figure 1 is a top view schematic diagram of the motor stator structure of the present invention.

Figure 2 is a flow chart of the steps of the manufacturing method of the motor stator structure of the present invention.

Figure 3 is a three-dimensional exploded view of the assembly iron parts and the insulating wire rack of the present invention.

Figure 4 is a three-dimensional assembly diagram of the connecting iron parts, insulating wire frame and coil assembly of the present invention.

Figure 5 is a three-dimensional assembly diagram of the assembled iron parts of the present invention.

Figure 6 is a three-dimensional assembly diagram of the motor stator structure of the present invention.

Figure 7 is a cross-sectional schematic diagram of the motor stator structure of the present invention.

Figure 8 is a partial cross-sectional schematic diagram of the motor stator structure of the present invention.

Figure 9 is another partial cross-sectional schematic diagram of the motor stator structure of the present invention.

Figure 10 is a top view schematic diagram of another embodiment of the motor stator structure of the present invention.

The detailed description and technical contents of the present invention will be described below with accompanying drawings. However, the attached drawings are for illustrative purposes only and are not intended to limit the present invention.

Please refer to Figures 1 to 9. The present invention provides a motor stator structure and its combined iron core and manufacturing method. The motor stator structure 10 mainly includes a combined iron core 1, a plurality of insulating wire frames 2 and a plurality of coil groups 3. The combined iron core 1 mainly includes a plurality of sets of connecting iron parts 11.

As shown in FIG. 2, the steps of the manufacturing method of the motor stator structure 10 of the present invention are as follows: first, as shown in step a of FIG. 2 and FIG. 3, a plurality of sets of connecting iron parts 11 are provided, each set of connecting iron parts 11 has a straight tooth portion 12 and a transverse boot portion 13 and a transverse arc body 14 extending from both ends of the straight tooth portion 12. One end of each transverse arc body 14 is provided with a groove 141 and the other end has a protrusion 142 matching the shape of the groove 141. The inner side wall of each groove 141 extends with a pair of oppositely arranged tenons 1411, and the outer side wall of each protrusion 142 is provided with a pair of oppositely arranged grooves 1421.

In addition, as shown in Figures 3 to 5, 7, and 9, each transverse arc body 14 is provided with a U-shaped groove 143 on the outer side away from each transverse boot portion 13, and each straight tooth portion 12 is provided with a fixing hole 121 on the upper and lower sides thereof.

Second, as shown in step b of FIG. 2 and FIG. 3, an insulating wire frame 2 is provided, and each insulating wire frame 2 is sleeved on each assembly iron piece 11. The detailed description is as follows. As shown in FIG. 1, FIG. 3 to FIG. 9, each insulating wire frame 2 includes a pair of U-shaped sleeves 21 sleeved on the upper and lower sides of each assembly iron piece 11, and each U-shaped sleeve 21 is made of insulating materials such as plastic.

In addition, each pair of U-shaped sleeves 21 has a pair of protrusions 22 extending from the inner side thereof to engage with each fixing hole 121, a pair of wave-shaped notches 23 are recessed at one end of the outer side to expose each groove 141, each protrusion 142 and each U-shaped cutout 143, and a pair of cable management blocks 24 are extended from the other end of the outer side to be arranged on the upper and lower sides of each transverse boot portion 13.

Third, as shown in step c of FIG. 2 and FIG. 4 , a plurality of coil groups 3 are provided, and each coil group 3 is wound around each insulating wire frame 2. Among them, the wire management block 24 is used to provide winding and fixing of the coil group 3.

Fourth, as shown in step d of FIG. 2 and FIG. 1, FIG. 3 to FIG. 9, each protrusion 142 is engaged with each groove 141 from the vertical direction, and each pair of tenons 1411 is engaged with each pair of grooves 1421, so that a plurality of transverse arc bodies 14 overlap to form an annular yoke 15, and a plurality of assembled iron parts 11 are assembled into an assembled iron core 1, that is, the assembled iron core 1 includes a plurality of assembled iron parts 11

Furthermore, a groove s is formed between the annular yoke 15 and each adjacent two straight teeth 12, and the groove s is used to accommodate the coil set 3, and each groove 141 is an Ω-shaped groove, and each protrusion 142 is an Ω-shaped block, but it is not limited to this. The groove 141 and the protrusion 142 of the present invention can be any geometric shape that matches the shape.

As shown in Figures 3 to 8, the motor stator structure 10 of the present invention is used in a state where a modular iron core 1 is assembled from a plurality of assembled iron parts 11, so each coil group 3 is first wound on each insulating wire frame 2 sleeved on the outside of each assembled iron part 11, and then the plurality of assembled iron parts 11 are assembled into a modular iron core 1, and the motor stator structure 10 is completed.

In this way, the slot s formed between the annular yoke 15 and each adjacent two straight teeth 12 does not need to reserve a winding operation space, so that the slot s can be reduced, thereby reducing the volume of the motor stator structure 10, and a single coil set 3 is wound around a single set of connecting iron parts 11, and multiple sets of connecting iron parts 11 are assembled into a modular iron core 1. All of these can be carried out through an automated process, so as to achieve the advantages of the motor stator structure 10 of the present invention with reduced volume and convenient automated process.

Please refer to FIG. 10, which is another embodiment of the motor stator structure 10 of the present invention. The embodiment of FIG. 10 is substantially the same as the embodiments of FIG. 1 to FIG. 9. The embodiment of FIG. 10 is different from the embodiments of FIG. 1 to FIG. 9 in that each groove 141 is a T-shaped groove and each protrusion 142 is a T-shaped block. However, the groove 141 and the protrusion 142 of the present invention can be any geometric shape that matches the shape, and are not limited to the above embodiments.

10: Motor stator structure

1: Combined iron core

11: Assemble iron parts

13: Horizontal boots

14: Horizontal arc

141: Groove

1411: Tenon

142: Bump

1421: Card groove

143: U-shaped groove

15: Ring yoke

2: Insulation wire rack

21: U-shaped sleeve

23: Wave-shaped gap

24: Cable management block

3: Coil set

s: container

100: Rotor

Claims (10)

A motor stator structure includes: a modular iron core, including a plurality of sets of connecting iron pieces, each of which has a straight tooth portion and a transverse boot portion and a transverse arc-shaped body extending from both ends of the straight tooth portion, each of which has a groove at one end and a protrusion matching the shape of the groove at the other end, each of which is engaged with each of the grooves to overlap the plurality of transverse arc-shaped bodies into an annular yoke; a plurality of insulating wire frames, respectively sleeved on each of the sets of connecting iron pieces; and a plurality of coil assemblies. , winding around the plurality of insulating wire racks; wherein, each of the transverse arc bodies is provided with a U-shaped cutout groove on the outer side away from each of the transverse boots, and each of the upper and lower sides of the straight teeth is provided with a fixing hole inwardly, and each of the insulating wire racks comprises a pair of U-shaped sleeves sleeved on the upper and lower sides of each of the assembly iron parts, and each pair of U-shaped sleeves has a pair of protruding columns extending from the inner side thereof and engaging with each of the fixing holes, and each pair of U-shaped sleeves has a pair of wavy notches at one end of the outer side thereof to expose each of the grooves, each of the protruding blocks and each of the U-shaped cutout grooves. The motor stator structure as described in claim 1, wherein the inner side wall of each groove extends with a pair of oppositely arranged tenons, and the outer side wall of each protrusion is provided with a pair of oppositely arranged grooves, and each pair of tenons is engaged with each pair of grooves. The motor stator structure as described in claim 2, wherein each of the grooves is an Ω-shaped groove, and each of the protrusions is an Ω-shaped block. The motor stator structure as described in claim 2, wherein each of the grooves is a T-shaped groove, and each of the protrusions is a T-shaped block. The motor stator structure as described in claim 1, wherein each pair of U-shaped sleeves has a pair of wiring blocks extending from the other end of the outer side and arranged on the upper and lower sides of each of the transverse boots. A modular iron core of a motor stator structure includes: A plurality of connecting iron parts, each of which has a straight tooth portion and a transverse boot portion and a transverse arc body extending from both ends of the straight tooth portion, one end of each transverse arc body is provided with a groove and the other end has a convex block matching the shape of the groove, each convex block is engaged with each groove, so that the plurality of transverse arc bodies overlap to form an annular yoke; wherein, each transverse arc body is provided with a U-shaped groove on the outer side away from each transverse boot portion, and each straight tooth portion is provided with a fixing hole on the upper and lower sides thereof. As described in claim 6, the combined iron core of the motor stator structure, wherein the inner side wall of each groove extends with a pair of oppositely arranged tenons, and the outer side wall of each protrusion is provided with a pair of oppositely arranged grooves, and each pair of tenons is engaged with each pair of grooves. The combined iron core of the motor stator structure as described in claim 7, wherein each of the grooves is an Ω-shaped groove, and each of the protrusions is an Ω-shaped block. The combined iron core of the motor stator structure as described in claim 7, wherein each of the grooves is a T-shaped slot and each of the protrusions is a T-shaped block. A method for manufacturing a motor stator structure comprises the following steps: a) providing a plurality of sets of connecting iron parts, each of which has a straight tooth portion and a transverse boot portion and a transverse arc body extending from both ends of the straight tooth portion, one end of each transverse arc body is provided with a groove, the other end has a protrusion matching the shape of the groove, and the outer side surface away from each transverse boot portion is provided with a U-shaped section groove, the inner side wall of each groove extends with a pair of oppositely arranged tenons, the outer side wall of each protrusion is provided with a pair of oppositely arranged grooves, and each of the upper and lower sides of the straight tooth portion is provided with a fixing hole; b) providing a plurality of insulating wires Frame, each of the insulating wire frames includes a pair of U-shaped sleeves sleeved on the upper and lower sides of each of the assembly iron parts, each pair of U-shaped sleeves extends from the inner side with a pair of protrusions engaged with each of the fixing holes, and each pair of U-shaped sleeves is concavely provided with a pair of wavy notches at one end of the outer side to expose each of the grooves, each of the protrusions and each of the U-shaped cutouts; c) providing a plurality of coil groups, winding each of the coil groups around each of the insulating wire frames; and d) engaging each of the protrusions with each of the grooves from a vertical direction, and engaging each of the pair of tenons with each of the pair of grooves, so that the plurality of the transverse arc bodies overlap into an annular yoke, and the plurality of assembly iron parts are assembled into a modular iron core.

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