CN213783000U - Stator module and motor of convenient wiring - Google Patents

Abstract

The utility model discloses a stator module and motor of convenient wiring, including stator core (1), it has a plurality of stator slots (2) to distribute along circumference in stator core (1), is equipped with three-phase stator winding (3) that are formed by a plurality of conductor segment interconnect in stator slot (2), radially is equipped with multilayer conductor section along stator core (1) in every stator slot (2), and three-phase stator winding (3) are connected with the three-phase binding post subassembly through the lead-out wire end, the three-phase binding post subassembly includes soft braided wire (4), and the one end of soft braided wire (4) is equipped with thin wall copper pipe (5), and the other end of soft braided wire (4) is equipped with open end (6) of connecting three-phase stator winding (3). The utility model has the characteristics of space utilization is high, makes things convenient for the winding of flat copper line and wiring.

Description

Stator module and motor of convenient wiring

Technical Field

The utility model relates to a stator module and three-phase machine, especially a stator module and motor of convenient wiring.

Background

At present, the wiring mode of the stator winding of the three-phase motor is divided into triangular connection and star connection, wherein the triangular connection is that the three-phase winding is sequentially connected end to form a closed loop; three-phase power supplies are respectively led out and connected at the three connecting points; and the connection mode of the three-phase winding at the leading-out wire end is to weld through a three-phase copper bar. However, the three-phase copper bar is formed by stamping and bending the copper sheet, so that the three-phase copper bar can occupy the space of the stator core in the radial direction or the axial direction after being welded, the overall size of the motor stator is increased, and the applicability of the motor stator is reduced. The external power supply also needs to lead out the power line to a specified position during wiring, thereby increasing the wiring difficulty of the motor. In addition, the current stator winding still can adopt the flat type copper wire to carry out the winding for the groove filling rate and the motor efficiency that improve the stator, and the end dislocation of adjacent flat type copper wire at the welding position then appears easily when the flat type copper wire is in the design to the degree of difficulty of arranging of flat type copper wire winding has been increased. Therefore, the existing motor stator has the problems of low space utilization rate and difficult winding and wiring.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a stator module and motor of convenient wiring. The flat copper wire winding and wiring device has the characteristics of high space utilization rate and convenience in winding and wiring of the flat copper wire.

The technical scheme of the utility model: the utility model provides a stator module of convenient wiring, includes stator core, and it has a plurality of stator slots to distribute along circumference in the stator core, is equipped with the three-phase stator winding that is formed by a plurality of conductor segment interconnect in the stator slot, and every stator slot is equipped with multilayer conductor segment along stator core's radial, and three-phase stator winding is connected with three-phase binding post subassembly through the lead-out wire end, three-phase binding post subassembly includes soft braided wire, and the one end of soft braided wire is equipped with thin wall copper pipe, and the other end of soft braided wire is equipped with the open terminal who connects three-phase stator winding.

In the stator assembly convenient for wiring, each soft braided wire is connected with two open terminals, the two open terminals are respectively connected with the outgoing line ends of different phases, and the outgoing line ends of the three-phase stator winding are sequentially connected in an annular mode through the three-phase wiring terminal assembly.

In the stator assembly convenient for wiring, 72 stator slots are circumferentially distributed in the stator core, and two layers of conductor segments are arranged in each stator slot along the radial direction of the stator core.

In the aforementioned stator module of convenient wiring, conductor section is U-shaped conductor section, and the one end of U-shaped conductor section forms the U-shaped portion of bending, and the other end of U-shaped conductor section forms the welding end, the welding end is including turning round first welding end and leading-out wire end, through turning round first welding end interconnect between the adjacent U-shaped conductor section, through leading-out wire end interconnect between U-shaped conductor section and the three-phase binding post subassembly.

In the aforementioned stator module of convenient wiring, form laminating portion and dislocation portion between the wrench end weld of adjacent U-shaped conductor section, be located two of laminating portion and turn round direct connection between the head weld, be located two of dislocation portion and turn round between the head weld through connecting bridge interconnect.

In the stator assembly convenient for wiring, the three-phase wiring terminal assembly is positioned at the outer layer of the stator slot along the radial direction, and the connecting bridge is positioned at the inner layer of the stator slot along the radial direction.

An electric machine comprising a stator assembly as described above that facilitates wiring.

Compared with the prior art, the utility model can realize the flexible connection of the leading-out wire end and the external power supply through the structural cooperation of the three-phase wiring terminal assembly, and the placing position of the soft braided wire can be flexibly adjusted according to the requirement, thereby effectively improving the space utilization rate of the utility model and facilitating the wiring of the stator winding; the adjacent welding ends of the twisted heads are connected with each other at the staggered parts through the connecting bridge, so that the conductor sections can be stably connected after the welding ends are staggered, the connecting structure of the conductor sections is further simplified, and the wiring difficulty of the three-phase stator winding is reduced; through setting up three-phase binding post subassembly and connecting bridge respectively in three-phase stator winding's inboard and outside, can also effectively reduce the welding degree of difficulty between them. Therefore, the utility model has the characteristics of space utilization is high, makes things convenient for the winding of flat copper line and wiring.

Drawings

FIG. 1 is an external view of the present invention;

FIG. 2 is a schematic structural view of a three-phase terminal assembly;

FIG. 3 is a schematic illustration of the connection of a three-phase terminal assembly and a connecting bridge;

FIG. 4 is a schematic view of the configuration of conductor segments within stator slots;

FIG. 5 is a profile view of a U-shaped conductor segment;

FIG. 6 is an expanded schematic view of a three-phase stator winding in slots 1-36;

FIG. 7 is an expanded view of the three-phase stator winding in slots 37-72;

FIG. 8 is an expanded view of the U-phase stator winding in slots 1-36;

fig. 9 is an expanded view of the U-phase stator winding in 37-72 slots.

The labels in the figures are: 1-stator core, 2-stator slot, 3-three-phase stator winding, 4-soft braided wire, 5-thin-wall copper tube, 6-open terminal, 7-U-shaped conductor section, 8-U-shaped bending part, 9-welding end and 10-connecting bridge.

Detailed Description

The following description is made with reference to the accompanying drawings and examples, but not to be construed as limiting the invention.

Examples are given. The utility model provides a stator module of convenient wiring, constitutes as shown in fig. 1-4, including stator core 1, it has a plurality of stator slots 2 to distribute along circumference in stator core 1, be equipped with the three-phase stator winding 3 that is formed by a plurality of conductor segment interconnect in the stator slot 2, three-phase stator winding 3's number of poles is 8 utmost point, every looks stator winding 3 comprises 1 winding branch road, is equipped with multilayer conductor section along stator core 1's radial in every stator slot 2, and three-phase stator winding 3 is connected with three-phase binding post subassembly through the lead-out wire end, three-phase binding post subassembly includes soft braided wire 4, and the one end of soft braided wire 4 is equipped with thin wall copper pipe 5, and the other end of soft braided wire 4 is equipped with the open terminal 6 of connecting three-phase stator winding 3.

Each soft braided wire 4 is connected with two open terminals 6, the two open terminals 6 are respectively connected with outgoing line ends of different phases, and the outgoing line ends of the three-phase stator winding 3 are sequentially connected in a triangular shape through a three-phase wiring terminal assembly.

72 stator slots 2 are circumferentially distributed in the stator core 1, and two layers of conductor segments are arranged in each stator slot 2 along the radial direction of the stator core 1.

The conductor section is U-shaped conductor section 7, constitutes as shown in fig. 5, and the cross-sectional appearance of U-shaped conductor section 7 is the rectangle, and the one end of U-shaped conductor section 7 forms U-shaped portion of bending 8, and the other end of U-shaped conductor section 7 forms weld end 9, weld end 9 is including turning round first weld end and leading-out wire end, through turning round first weld end interconnect between the adjacent U-shaped conductor section 7, through leading-out wire end interconnect between U-shaped conductor section 7 and the three-phase binding post subassembly, and weld end 9 and the length of U-shaped portion of bending 8 can be adjusted according to the crossing slot number of U-shaped portion of bending 8.

Form laminating portion and dislocation portion between the twist head welding end of adjacent U-shaped conductor section 7, be located the direct connection between two twist head welding ends of laminating portion, be located between two twist head welding ends of dislocation portion through connecting bridge 10 interconnect.

The three-phase terminal assembly is located radially on the outer layer of the stator slot 2 and the connecting bridge 10 is located radially on the inner layer of the stator slot 2.

The connection schematic diagram of the winding structure of this embodiment is shown in fig. 6-7, taking U-phase stacked winding as an example (V, W phase is similar to U phase, and is not described here again):

each branch winding of the U-phase includes a winding branch formed by connecting 24 conductor segment windings in series, as shown in fig. 8-9. Wherein the numbers in brackets represent the number of layers of conductor segments in the stator slot and the numbers outside the brackets represent the number of stator slots in which the conductor segments are located. Example (c): 13(2) shows the position of the 2-layer conductor in the 13 th slot.

The number of the grooves through which the U-phase is connected in series is as follows: 22(2), (13), (1) → 4(2) → 67(1) → 58(2) → 49(1) → 40(2) → 32(1) → 23(2) → 14(1) → 5(2) → 68(1) → 59(2) → 50(1) → 41(2) → 33(1) → 24(2) → 15(1) → 6(2) → 69(1) → 60(2) → 51(1) ((42) ((2) → 31) (1) → 24(1) → 33) (2) → 42(1) → 51) ((2) → 60) (1) → 50) → 1) → 50(1) → 31), (2) ((1) → 31) ((1) (1) → 31) ((2) → 31) ((1) → 2) ((1) → 1) (1) → 50) → 1) ((1) → 1) ((1) → 23) ((1) → 1) ((1) (1) → 30) ((1) → 30): 1) (1): 1) → 31) (1) (1) → 31): 1) → 30) (1) → 30)

The remaining V-and W-phase windings are symmetrically and uniformly distributed on the circumference, which is not illustrated here.

An electric machine comprising a stator assembly as described herein that facilitates wiring.

The utility model discloses a theory of operation: the utility model discloses when the wire winding, will form U looks, V looks and W looks stator winding respectively through the connection gradually of each U-shaped conductor section 7 in stator slot 2, then with two liang of connections of three stator winding's lead-out wire end through three-phase binding post subassembly, form closed circuit, the junction connects external power source through the cooperation of soft braided wire 4 and thin wall copper pipe 5 simultaneously, realizes wire winding and the wiring to three-phase stator winding 3. Through the structure cooperation of soft braided wire 4 and opening terminal 6, can realize leading-out line end and external power source's flexible connection to reduce the required occupation space of binding post and reduce its wiring degree of difficulty. When the three-phase stator winding 3 is wound, the adjacent U-shaped conductor sections 7 can be stably connected at the dislocation part through the connecting bridge 10, and then the U-shaped conductor sections 7 are completely connected end to end without twisting welding ends on the whole winding branch when in arrangement design, so that the winding difficulty of the three-phase stator winding 3 is reduced. On the basis, the utility model discloses still further optimized the wire winding structure to three-phase stator winding 3 for the lead-out wire end of connecting the three-phase binding post subassembly is located three-phase stator winding 3's skin, connects the interior layer that the turn round head weld end of connecting bridge 10 is located three-phase stator winding 3, thereby further reduces the welding degree of difficulty of connecting bridge 10 and three-phase binding post subassembly, makes things convenient for operating personnel's wiring.

Claims (7)

1. A stator module of convenient wiring, its characterized in that: including stator core (1), it has a plurality of stator slots (2) to distribute along circumference in stator core (1), is equipped with three-phase stator winding (3) that are formed by a plurality of conductor section interconnect in stator slot (2), radially is equipped with multilayer conductor section along stator core (1) in every stator slot (2), and three-phase stator winding (3) are connected with three-phase binding post subassembly through the lead-out wire end, three-phase binding post subassembly includes soft braided wire (4), and the one end of soft braided wire (4) is equipped with thin wall copper pipe (5), and the other end of soft braided wire (4) is equipped with open terminal (6) of connecting three-phase stator winding (3).

2. A wire facilitating stator assembly according to claim 1, wherein: each soft braided wire (4) is connected with two open terminals (6), the two open terminals (6) are respectively connected with outgoing line ends of different phases, and the outgoing line ends of the three-phase stator winding (3) are sequentially connected in an annular shape through a three-phase wiring terminal assembly.

3. A wire facilitating stator assembly according to claim 1, wherein: 72 stator slots (2) are distributed in the stator core (1) along the circumferential direction, and two layers of conductor sections are arranged in each stator slot (2) along the radial direction of the stator core (1).

4. A wire facilitating stator assembly according to claim 1, wherein: the conductor section is U-shaped conductor section (7), and the one end of U-shaped conductor section (7) forms U-shaped portion (8) of bending, and the other end of U-shaped conductor section (7) forms welding end (9), welding end (9) are including turning round first welding end and lead-out wire end, through turning round first welding end interconnect between adjacent U-shaped conductor section (7), through lead-out wire end interconnect between U-shaped conductor section (7) and the three-phase binding post subassembly.

5. A wire facilitating stator assembly according to claim 4, wherein: form laminating portion and dislocation position portion between the wrench end welding of adjacent U-shaped conductor section (7), be located the direct connection between two wrench end welding of laminating portion, be located between two wrench end welding of dislocation position portion through connecting bridge (10) interconnect.

6. A wire facilitating stator assembly according to claim 5, wherein: the three-phase wiring terminal assembly is located on the outer layer of the stator slot (2) along the radial direction, and the connecting bridge (10) is located on the inner layer of the stator slot (2) along the radial direction.

7. An electric machine characterized by: the electric machine comprises a stator assembly according to any of claims 1-6, which facilitates wiring.

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