CN216016568U

CN216016568U - Self-supporting coreless winding and motor with same

Info

Publication number: CN216016568U
Application number: CN202122094915.1U
Authority: CN
Inventors: 姬中营; 唐斌松; 谭啸天
Original assignee: Shanghai Moons Electric Co Ltd
Current assignee: Shanghai Moons Electric Co Ltd
Priority date: 2021-09-01
Filing date: 2021-09-01
Publication date: 2022-03-11
Anticipated expiration: 2031-09-01

Abstract

The utility model relates to a self-supporting coreless winding and have motor of this winding, this winding include at least one coil, every coil includes first sub-coil (2-1) and second sub-coil (2-2), first lead-out wire (2-1-1) of first sub-coil (2-1) and second lead-out wire (2-2-1) of second sub-coil (2-2) all draw forth from the coil outside. Compared with the prior art, the utility model has the advantages of the inside and outside footpath size of the self-supporting coreless winding behind the control coil edge rolling that can be better.

Description

Self-supporting coreless winding and motor with same

Technical Field

The utility model relates to a motor winding especially relates to a self-supporting coreless winding and have motor of this winding.

Background

The motor without the tooth groove is widely applied to the industries of medical treatment, aerospace, industrial automation and the like. Because the stator is slotless, the design and application of its windings becomes particularly specific to conventional slotted motors. By way of search, the US patent US 4,543,507 initially proposes a self-supported coil, which is shaped like a cylinder for easy assembly with a stator without cogging. Meanwhile, japanese patent JP2002-281705a describes in detail a winding method of such a self-supporting coil, which is generally divided into several steps of winding, flattening and rounding. The Chinese patent CN200610136515.X adopts a concentric winding mode to manufacture a similar hollow cup coil; the winding mode of the single coil is different from that of the Japanese patent JP2002-281705A, a concentric winding method is adopted, and then 6 coils are overlapped in a staggered mode to wind corresponding windings.

Referring to fig. 1, one outgoing line is led out from the inner side of the coil, and the other outgoing line is led out from the outer side of the coil, wherein the outgoing line from the inner side interferes with the coil conductor, which is not favorable for size control of the inner diameter and the outer diameter of the winding after the six coils are rolled.

SUMMERY OF THE UTILITY MODEL

The present invention aims to overcome the defects of the prior art and provide a self-supporting coreless winding and a motor with the winding.

The purpose of the utility model can be realized through the following technical scheme:

according to the utility model discloses in the first aspect, a self-supporting coreless winding is provided, including at least one coil, every coil includes first sub-coil and second sub-coil, the first lead-out wire of first sub-coil and the second lead-out wire of second sub-coil all draw forth from the coil outside.

Preferably, the starting line of the first sub-coil and the starting line of the second sub-coil are the same winding.

As a preferable technical scheme, the first sub-coil is a coil formed by winding a starting wire in a forward direction, wherein the forward direction is CW or CCW, and the second sub-coil is a coil formed by winding a starting wire in a reverse direction.

Preferably, the winding of the coil is flat copper wire or round copper wire or multi-strand round copper wire connected in parallel.

Preferably, the first sub-coil and the second sub-coil are connected in series.

As a preferred technical solution, the coils include six coils, which are respectively a first coil, a second coil, a third coil, a fourth coil, a fifth coil and a sixth coil, wherein the first coil and the fourth coil are a first phase, the second coil and the fifth coil are a second phase, and the third coil and the sixth coil are a third phase.

Preferably, the first sub-coil and the second sub-coil are formed by closely winding.

Preferably, the first sub-coil and the second sub-coil are connected by a start wire.

According to the utility model discloses in the second aspect, an adopt motor of self-supporting coreless winding is provided, this motor includes self-supporting coreless winding.

Compared with the prior art, the utility model has the advantages of it is following:

1. the utility model designs two outgoing lines outside the coil, so that the outgoing lines are not easy to interfere with the conductor of the winding, and the inner and outer diameter sizes of the self-supporting hollow cup winding after the coil is rolled can be better controlled;

2. the coil of the utility model is composed of two coils which are superposed up and down and connected in series, so the number of turns of the coil can be increased by 2 times compared with the original scheme, and the coil is more suitable for winding a self-supporting hollow cup winding with a plurality of turns of the coil;

3. the utility model discloses can adopt the flat copper line to carry out the coiling coil, therefore traditional round wire has better groove fullness rate relatively, and the motor has better load characteristic.

Drawings

FIG. 1 is a schematic diagram of a prior art coil structure;

fig. 2 is a schematic structural diagram of a single coil according to the present invention;

fig. 3 is a schematic winding diagram of a first sub-coil of the present invention;

fig. 4 is a schematic winding diagram of a second sub-coil of the present invention;

fig. 5 is a simplified schematic diagram of a single coil of the present invention;

fig. 6 is another simplified schematic diagram of a single coil of the present invention;

fig. 7 is an expanded schematic view of six coils according to the present invention;

fig. 8 is a schematic diagram of the present invention in which six coils are wound to form a circular winding.

Wherein 2 is a first coil, 3 is a second coil, 4 is a third coil, 5 is a fourth coil, 6 is a fifth coil, 7 is a sixth coil, 2-1 is a first sub-coil, 2-2 is a second sub-coil, 2-1-1 is a first outgoing line, 2-2-1 is a second outgoing line, and 2-1-2 is a starting line.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, not all, of the embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts shall fall within the protection scope of the present invention.

Example 1

The utility model discloses a business turn over line is all in the preparation mode of the coil in the coil outside, uses the winding of this mode preparation because business turn over line all is located the outside of coil, therefore is difficult to take place the lead-out wire and interfere the problem with other conductors of coil when splicing into the winding, then the size of the winding internal and external diameter after the control edge rolling that can be better.

As shown in FIGS. 2-6, the self-supporting coreless winding comprises at least one coil, each coil comprises a first sub-coil 2-1 and a second sub-coil 2-2, and a first outgoing line 2-1-1 of the first sub-coil 2-1 and a second outgoing line 2-2-1 of the second sub-coil 2-2 are both led out from the outer side of the coil.

The starting line 2-1-2 of the first sub-coil 2-1 and the starting line 2-1-2 of the second sub-coil 2-2 are the same winding.

The first sub-coil 2-1 is formed by winding the starting wire 2-1-2 in a forward direction, wherein the forward direction is CW or CCW, and the second sub-coil 2-2 is formed by winding the starting wire 2-1-2 in a reverse direction.

The winding of the coil adopts flat copper wires or round copper wires or multi-strand parallel round copper wires.

The first sub-coil 2-1 and the second sub-coil 2-2 are formed by winding closely. The first sub-coil 2-1 and the second sub-coil 2-2 are connected through a starting line 2-1-2.

The first sub-coil 2-1 and the second sub-coil 2-2 are connected in series.

As shown in fig. 7 and 8, the coils include six coils, i.e., a first coil 2, a second coil 3, a third coil 4, a fourth coil 5, a fifth coil 6, and a sixth coil 7, wherein the first coil 2 and the fourth coil 5 are a first phase, the second coil 3 and the fifth coil 6 are a second phase, and the third coil 4 and the sixth coil 7 are a third phase. The second coil 3, the third coil 4, the fourth coil 5, the fifth coil 6 and the sixth coil 7 are manufactured in a method consistent with that of the first coil 2, only the first lead wire 2-1-1 and the second lead wire 2-2-1 of the first coil 2 are shown in fig. 7, and lead wires of other coils are not shown.

The utility model discloses a manufacturing method of self-supporting coreless winding, this method includes following step:

winding 1 is performed to wind a first sub-coil 2-1 along a winding mold 8, meanwhile, a starting wire 2-1-2 of the first sub-coil 2-1 is reserved at the contact side of the winding mold of the first sub-coil 2-1, and a tap is led out to serve as a first outgoing wire 2-1-1 after concentric winding is completed, as shown in figure 3;

2, after the first sub-coil 2-1 is wound, the starting wire 2-1-2 with the reserved length is wound along the winding die 8 in the direction opposite to the first sub-coil 2-1, the winding of the second sub-coil 2-2 is completed, and a tap is led out to be used as a second leading-out wire 2-2-1, as shown in fig. 4.

In order to better represent the relationship between the first sub-coil 2-1 and the second sub-coil 2-2, the larger gap reserved in fig. 4 is merely illustrated as an example, and two coils are actually wound close together. FIG. 5 is a schematic diagram of the first coil 2 after completion of winding, two outgoing lines of the first coil 2 are a second outgoing line 2-2-1 and a first outgoing line 2-1-1, respectively, wherein a start line 2-1-2 connecting the first sub-coil 2-1 and the second sub-coil 2-2 is not drawn;

fig. 5 is a simplified schematic diagram of the first coil 2 of fig. 2; FIG. 6 is another simplified schematic of FIG. 5; the coil-to-coil relationship in the winding can be more clearly shown using fig. 6 as the schematic diagram of fig. 2.

Example 2

The utility model also provides an adopt motor of self-supporting formula coreless winding, this motor includes self-supporting formula coreless winding.

The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily think of various equivalent modifications or replacements within the technical scope of the present invention, and these modifications or replacements should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. A self-supporting coreless winding is characterized by comprising at least one coil, each coil comprises a first sub-coil (2-1) and a second sub-coil (2-2), and a first outgoing line (2-1-1) of the first sub-coil (2-1) and a second outgoing line (2-2-1) of the second sub-coil (2-2) are both led out from the outer side of the coil.

2. A self-supporting coreless winding according to claim 1, wherein the starting line (2-1-2) of the first sub-coil (2-1) is the same winding as the starting line (2-1-2) of the second sub-coil (2-2).

3. A self-supporting coreless winding according to claim 2, wherein the first sub-coil (2-1) is a coil formed by winding a start wire (2-1-2) in a forward direction, wherein the forward direction is CW or CCW, and the second sub-coil (2-2) is a coil formed by winding a start wire (2-1-2) in a reverse direction.

4. A self-supporting coreless winding as recited in claim 1, wherein the windings of the coil are flat copper wires or round copper wires or multi-strand parallel round copper wires.

5. A self-supporting coreless winding according to claim 1, wherein the first sub-coil (2-1) and the second sub-coil (2-2) are connected in series.

6. A self-supporting coreless winding according to claim 1, wherein the coils include six, being a first coil (2), a second coil (3), a third coil (4), a fourth coil (5), a fifth coil (6) and a sixth coil (7), wherein the first coil (2) and the fourth coil (5) are a first phase, the second coil (3) and the fifth coil (6) are a second phase, and the third coil (4) and the sixth coil (7) are a third phase.

7. A self-supporting coreless winding as claimed in claim 1, wherein the first sub-coil (2-1) and the second sub-coil (2-2) are formed by close winding.

8. A self-supporting coreless winding according to claim 2, wherein the first sub-coil (2-1) and the second sub-coil (2-2) are connected by a start line (2-1-2).

9. An electrical machine employing self-supporting coreless windings, the machine comprising self-supporting coreless windings as claimed in any one of claims 1 to 8.