Six-layer flat copper wire winding structure

Abstract

The utility model belongs to the technical field of motor structures, and particularly relates to a six-layer flat copper wire winding structure, which comprises a stator body, groove bodies, insulation paper and wire groups, the groove bodies are arranged on the outer side of the stator body, the wire groups are arranged on the outer side of the stator body, the insulation paper is arranged between the outer sides of the groove bodies and the wire groups, and the insulation paper is arranged between the groove bodies and the wire groups. The line groups at least comprise a first phase line group U, a second phase line group V and a third phase line group W; the stator body is provided with six winding layers, the stator body is provided with at least 48 groove bodies, any groove body forms a groove position in any winding layer, any groove body forms a groove position in any winding layer, the first phase line set U, the second phase line set V and the third phase line set W are respectively provided with a branch in a winding mode, and the first phase line set U, the second phase line set V and the third phase line set W are respectively provided with a branch in a winding mode. And the first phase line group U, the second phase line group V and the third phase line group W are all double-layer windings. According to the utility model, through the design of the six-layer and one-branch winding, the torque of a low-speed area can be improved by improving the number of series turns of the motor.

Description

Technical Field

[0001] The utility model relates to the field of motor structures, and particularly to a six-layer flat copper wire winding structure. Background Technique

[0002] At present, with the rapid development of the new energy vehicle industry, a new round of motor innovation has been triggered. With the rapid development of the new energy vehicle industry, the requirements for motor power density and torque density are getting higher and higher. The NVN performance is excellent, and the winding scheme is required to meet the requirements of high torque in the low-speed area, high power in the high-speed area, and good NVH performance at the same time.

[0003] Therefore, a six-layer flat copper wire winding structure is needed to solve the above-mentioned problems. Content of the Utility Model

[0004] In view of the above situation, in order to overcome the defects of the prior art, the utility model provides a six-layer flat copper wire winding structure, which effectively solves the problems put forward in the above background technique.

[0005] To achieve the above purpose, the utility model provides the following technical scheme: A six-layer flat copper wire winding structure includes a stator body, a slot, insulating paper, and a wire group. The slot is arranged on the outer side of the stator body. A wire group is arranged on the outer side of the stator body. The insulating paper is arranged between the outer side of the slot and the wire group. The wire group includes at least a first-phase wire group U, a second-phase wire group V, and a third-phase wire group W.

[0006] The stator body has 6 winding layers. Any slot forms a slot position in any winding layer. The first-phase wire group U, the second-phase wire group V, and the third-phase wire group W are all wound in one branch. The first-phase wire group U, the second-phase wire group V, and the third-phase wire group W are all double-layer windings. Each slot has six conductors with the same span, and the connection method of the motor's incoming and outgoing lines adopts a delta connection.

[0007] Further, the two ends of the coil of any phase wire group are respectively the positive and negative pole ends and are respectively located on both sides of the stator body.

[0008] Further, the stator body has 48 slots. Any winding position of the stator body is an xy position, where y is any one of the slot numbers from 1 to 48, and x is any one of the stator body layer numbers from a to g.

[0009] Further, the windings of the first-layer phase wire group are the first-phase wire group U1, the second-phase wire group V1, and the third-phase wire group W1, and the first-phase wire group U1 is sequentially arranged along the positive direction of the current in:

[0010] f1, e8, f13, e20, f25, e32, f37, e44, d1, c8, d13, c20, d25, c32, d37, c44, b1, a8, b13, a20, b25, a32, b37, a44, a38, b31, a26, b19, a14, b7, a2, b43, c38, d31, c26, d19, c14, d7, c2, d43, e38, f31, e26, f19, e14, f7, e2, f43, f2, e9, f14, e21, f26, e33, f38, e45, d2, c9, d14, c21, d26, c33, d38, c45, b2, a9, b14, a21, b26, a33, b38, a45, a39, b32, a27, b20, a15, b8, a3, b44, c39, d32, c27, d20, c15, d8, c3, d44, e39, f32, e27, f20, e15, f8, e3, f44;

[0011] The second phase wire group V1 is sequentially arranged along the positive direction of the current at:

[0012] f5, e12, f17, e24, f29, e36, f41, e48, d5, c12, d17, c24, d29, c36, d41, c48, b5, a12, b17, a24, b29, a36, b41, a48, a42, b35, a30, b23, a18, b11, a6, b47, c42, d35, c30, d23, c18, d11, c6, d47, e42, f35, e30, f23, e18, f11, e6, f47, f6, e13, f18, e25, f30, e37, f42, e1, d6, c13, d18, c25, d30, c37, d42, c1, b6, a13, b18, a25, b30, a37, b42, a1, a43, b36, a31, b24, a19, b48, c43, d36, c31, b24, c19, d12, c7, d48, e43, f36, e31, f24, e19, f12, e7, f48;

[0013] The third phase wire group W1 is sequentially arranged along the positive direction of the current at:

[0014] f9, e16, f21, e29, f33, e40, f45, e4, d9, c16, d21, c28, d33, c40, d45, c4, b9, a16, b21, a28, b33, a40, b45, a4, a46, b39, a34, b27, a22, b15, a10, b3, c46, d39, c34, d27, c22, d15, c10, d3, e46, f39, e34, f27, e22, f15, e11, f3, f10, e17, f22, e29, f34, e41, f46, e5, d10, c17, d22, c29, d34, c41, d46, c5, b10, a17, b22, a29, b34, a41, b46, a5, a47, b40, a35, b29, a23, b4, c47, d40, c35, b28, c23, d16, c11, d4, e47, f40, e35, f29, e23, f16, e11, f4。

[0015] Further, the windings of the second-layer phase line group are the first phase line group U2, the second phase line group V2, and the third phase line group W2, and the first phase line group U2 is sequentially arranged along the positive direction of the current at:

[0016] f5, e12, f17, e24, f29, e36, f41, e48, d5, c12, d17, c24, d29, c36, d41, c48, b5, a12, b17, a24, b29, a36, b41, a48, a42, b35, a30, b23, a18, b11, a6, b47, c42, d35, c30, d23, c18, d11, c6, d47, e42, f35, e30, f23, e18, f11, e6, f47, f6, e13, f18, e25, f30, e37, f42, e1, d6, c13, d18, c25, d30, c37, d42, c1, b6, a13, b18, a25, b30, a37, b42, a1, a43, b36, a31, b24, a19, b48, c43, d36, c31, b24, c19, d12, c7, d48, e43, f36, e31, f24, e19, f12, e7, f48;

[0017] The second phase line group V2 is sequentially arranged along the positive direction of the current at:

[0018] f9, e16, f21, e29, f33, e40, f45, e4, d9, c16, d21, c28, d33, c40, d45, c4, b9, a16, b21, a28, b33, a40, b45, a4, a46, b39, a34, b27, a22, b15, a10, b3, c46, d39, c34, d27, c22, d15, c10, d3, e46, f39, e34, f27, e22, f15, e11, f3, f10, e17, f22, e29, f34, e41, f46, e5, d10, c17, d22, c29, d34, c41, d46, c5, b10, a17, b22, a29, b34, a41, b46, a5, a47, b40, a35, b29, a23, b4, c47, d40, c35, b28, c23, d16, c11, d4, e47, f40, e35, f29, e23, f16, e11, f4;

[0019] The third-phase line group W2 is sequentially arranged along the positive direction of the current at:

[0020] f1, e8, f13, e20, f25, e32, f37, e44, d1, c8, d13, c20, d25, c32, d37, c44, b1, a8, b13, a20, b25, a32, b37, a44, a38, b31, a26, b19, a14, b7, a2, b43, c38, d31, c26, d19, c14, d7, c2, d43, e38, f31, e26, f19, e14, f7, e2, f43, f2, e9, f14, e21, f26, e33, f38, e45, d2, c9, d14, c21, d26, c33, d38, c45, b2, a9, b14, a21, b26, a33, b38, a45, a39, b32, a27, b20, a15, b8, a3, b44, c39, d32, c27, d20, c15, d8, c3, d44, e39, f32, e27, f20, e15, f8, e3, f44.

[0021] Further, the f1 position of the first-phase line group U1, the f5 position of the first-phase line group U2, the f5 position of the second-phase line group V1, the f9 position of the second-phase line group V2, the f9 position of the first-phase line group W1, and the f1 position of the first-phase line group W2 are positive electrodes.

[0022] Compared with the prior art, the beneficial effects of the present utility model are:

[0023] 1. The utility model can improve the torque in the low-speed range by increasing the number of turns in series of the motor through the design of a 6-layer 1-branch winding.

[0024] 2. The utility model can increase the power of the motor in the high-speed range by increasing the phase voltage of the motor through the delta-connected winding connection method.

[0025] 3. The utility model can reduce the harmonic content of the motor and improve the NVH level of the motor through the double-layer winding method. Description of the Drawings

[0026] The drawings are used to provide a further understanding of the utility model, and constitute a part of the specification. Together with the embodiments of the utility model, they are used to explain the utility model, and do not constitute a limitation to the utility model. In the drawings:

[0027] Figure 1 is a schematic diagram of the stator winding mode of the utility model;

[0028] Figure 2 is a schematic diagram of the delta connection of the incoming and outgoing lines of the motor of the utility model;

[0029] Figure 3 is the developed view of the 8-pole 48-slot 6-layer 1-branch delta-connected U-phase winding of the utility model. Detailed Embodiments

[0030] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only a part of the embodiments of the utility model, rather than all the embodiments; based on the embodiments in the utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the utility model.

[0031] Embodiment 1 is given by Figures 1-3 The utility model discloses a six-layer flat copper wire winding structure, including a stator body, a slot, insulating paper and a wire group. The slot is arranged on the outer side of the stator body, the wire group is arranged on the outer side of the stator body, and the insulating paper is arranged between the outer side of the slot and the wire group. The wire group at least includes a first phase wire group U, a second phase wire group V and a third phase wire group W;

[0032] The stator body has 6 winding layers. Any slot forms a slot position in any winding layer. The first phase wire group U, the second phase wire group V and the third phase wire group W are all wound in one branch. The first phase wire group U, the second phase wire group V and the third phase wire group W are all double-layer windings. Each slot has six conductors with the same span, and the incoming and outgoing line connection method of the motor adopts the delta connection method;

[0033] The stator body is annular and is provided with a plurality of slots. For specific reference, refer to the existing stator structure, such as the slots and lamination methods shown in CN109391052B;

[0034] The two ends of the coil of any phase wire group are the positive and negative end poles respectively, and are located on both sides of the stator body;

[0035] Embodiment 2 is given by Figures 1-3 The stator body has 48 slots. Any winding position of the stator body is the xy position, where y is any one of the slot numbers from 1 to 48, and x is any one of the lamination layers a to g of the stator body. The windings of the first layer of phase wire groups are the first phase wire group U1, the second phase wire group V1, and the third phase wire group W1. And the first phase wire group U1 is sequentially arranged along the positive direction of the current at:

[0036] f1, e8, f13, e20, f25, e32, f37, e44, d1, c8, d13, c20, d25, c32, d37, c44, b1, a8, b13, a20, b25, a32, b37, a44, a38, b31, a26, b19, a14, b7, a2, b43, c38, d31, c26, d19, c14, d7, c2, d43, e38, f31, e26, f19, e14, f7, e2, f43, f2, e9, f14, e21, f26, e33, f38, e45, d2, c9, d14, c21, d26, c33, d38, c45, b2, a9, b14, a21, b26, a33, b38, a45, a39, b32, a27, b20, a15, b8, a3, b44, c39, d32, c27, d20, c15, d8, c3, d44, e39, f32, e27, f20, e15, f8, e3, f44;

[0037] The second phase wire group V1 is sequentially arranged along the positive direction of the current at:

[0038] f5, e12, f17, e24, f29, e36, f41, e48, d5, c12, d17, c24, d29, c36, d41, c48, b5, a12, b17, a24, b29, a36, b41, a48, a42, b35, a30, b23, a18, b11, a6, b47, c42, d35, c30, d23, c18, d11, c6, d47, e42, f35, e30, f23, e18, f11, e6, f47, f6, e13, f18, e25, f30, e37, f42, e1, d6, c13, d18, c25, d30, c37, d42, c1, b6, a13, b18, a25, b30, a37, b42, a1, a43, b36, a31, b24, a19, b48, c43, d36, c31, b24, c19, d12, c7, d48, e43, f36, e31, f24, e19, f12, e7, f48;

[0039] The third-phase wire group W1 is sequentially arranged along the positive direction of the current at:

[0040] f9, e16, f21, e29, f33, e40, f45, e4, d9, c16, d21, c28, d33, c40, d45, c4, b9, a16, b21, a28, b33, a40, b45, a4, a46, b39, a34, b27, a22, b15, a10, b3, c46, d39, c34, d27, c22, d15, c10, d3, e46, f39, e34, f27, e22, f15, e11, f3, f10, e17, f22, e29, f34, e41, f46, e5, d10, c17, d22, c29, d34, c41, d46, c5, b10, a17, b22, a29, b34, a41, b46, a5, a47, b40, a35, b29, a23, b4, c47, d40, c35, b28, c23, d16, c11, d4, e47, f40, e35, f29, e23, f16, e11, f4;

[0041] The windings of the second-layer wire group are the first-phase wire group U2, the second-phase wire group V2, and the third-phase wire group W2, and the first-phase wire group U2 is sequentially arranged along the positive direction of the current at:

[0042] f5, e12, f17, e24, f29, e36, f41, e48, d5, c12, d17, c24, d29, c36, d41, c48, b5, a12, b17, a24, b29, a36, b41, a48, a42, b35, a30, b23, a18, b11, a6, b47, c42, d35, c30, d23, c18, d11, c6, d47, e42, f35, e30, f23, e18, f11, e6, f47, f6, e13, f18, e25, f30, e37, f42, e1, d6, c13, d18, c25, d30, c37, d42, c1, b6, a13, b18, a25, b30, a37, b42, a1, a43, b36, a31, b24, a19, b48, c43, d36, c31, b24, c19, d12, c7, d48, e43, f36, e31, f24, e19, f12, e7, f48;

[0043] The second phase wire group V2 is sequentially arranged along the positive direction of the current at:

[0044] f9, e16, f21, e29, f33, e40, f45, e4, d9, c16, d21, c28, d33, c40, d45, c4, b9, a16, b21, a28, b33, a40, b45, a4, a46, b39, a34, b27, a22, b15, a10, b3, c46, d39, c34, d27, c22, d15, c10, d3, e46, f39, e34, f27, e22, f15, e11, f3, f10, e17, f22, e29, f34, e41, f46, e5, d10, c17, d22, c29, d34, c41, d46, c5, b10, a17, b22, a29, b34, a41, b46, a5, a47, b40, a35, b29, a23, b4, c47, d40, c35, b28, c23, d16, c11, d4, e47, f40, e35, f29, e23, f16, e11, f4;

[0045] The third phase wire group W2 is sequentially arranged along the positive direction of the current at:

[0046] f1, e8, f13, e20, f25, e32, f37, e44, d1, c8, d13, c20, d25, c32, d37, c44, b1, a8, b13, a20, b25, a32, b37, a44, a38, b31, a26, b19, a14, b7, a2, b43, c38, d31, c26, d19, c14, d7, c2, d43, e38, f31, e26, f19, e14, f7, e2, f43, f2, e9, f14, e21, f26, e33, f38, e45, d2, c9, d14, c21, d26, c33, d38, c45, b2, a9, b14, a21, b26, a33, b38, a45, a39, b32, a27, b20, a15, b8, a3, b44, c39, d32, c27, d20, c15, d8, c3, d44, e39, f32, e27, f20, e15, f8, e3, f44。

[0047] The f1 position of the first phase wire group U1, the f5 position of the first phase wire group U2, the f5 position of the second phase wire group V1, the f9 position of the second phase wire group V2, the f9 position of the first phase wire group W1, and the f1 position of the first phase wire group W2 are the positive extreme ends, and the phase wire groups are mutually offset by 120 degrees.

[0048] It should be noted that setting them in sequence along the positive direction of the current indicates that the actual direction of this branch is the same as the aforementioned idea. Taking the first phase as an example: the head end of the first phase wire group U1 is at f1 and the tail end is at f44. At this time, the head end of the third phase wire group W2 in the application scenario is at f1 and the tail end is at f44. That is to say, the head and tail ends of the first phase wire group U1 and the third phase wire group W2 are distributed the same. The specific sorting can be referred to Figure 1 as shown in the numbers.

[0049] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article or device.

[0050] Although embodiments of the present utility model have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. A six-layer flat copper wire winding structure, comprising a stator body, a slot body, insulating paper and a wire group, characterized in that: The slot body is arranged outside the stator body, a wire group is arranged outside the stator body, the insulating paper is arranged between the outside of the slot body and the wire group, and the wire group includes at least a first phase wire group U, a second phase wire group V, and a third phase wire group W; The stator body has 6 winding layers, and any slot body forms a slot in any winding layer. The first phase wire group U, the second phase wire group V, and the third phase wire group W are all winding branches. The first phase wire group U, the second phase wire group V, and the third phase wire group W are all double-layer windings. Each slot has six conductors with the same span, and the motor's input and output connections adopt a triangle connection method.

2. The six-layer flat copper wire winding structure according to claim 1, characterized in that: The two ends of the coil of any phase line group are respectively positive and negative terminals, and are respectively located on both sides of the stator body.

3. The six-layer flat copper wire winding structure according to claim 2, characterized in that: The stator body has 48 slots, and any winding position of the stator body is position xy, y is any slot number from 1 to 48, and x is any number of stator body layers from a to g.

4. The six-layer flat copper wire winding structure according to claim 3, characterized in that: The windings of the first layer of phase line groups are the first phase line group U1, the second phase line group V1, and the third phase line group W1, and the first phase line group U1 is arranged in the positive direction of the current in sequence: f1, e8, f13, e20, f25, e32, f37, e44, d1, c8, d13, c20, d25, c32, d37, c44, b1, a8, b13, a20, b25, a32, b37, a44, a38, b31, a26, b19, a14, b7, a2, b43, c38, d31, c26, d19, c14, d7, c2, d43, e38, f31, e26, f19, e14, f7, e2, f43, f2, e9, f14, e21, f26, e33, f38, e45, d2, c9, d14, c21, d26, c33, d38, c45, b2, a9, b14, a21, b26, a33, b38, a45, a39, b32, a27, b20, a15, b8, a3, b44, c39, d32, c27, d20, c15, d8, c3, d44, e39, f32, e27, f20, e15, f8, e3, f44; The second phase line group V1 is arranged in the positive direction of the current: f5, e12, f17, e24, f29, e36, f41, e48, d5, c12, d17, c24, d29, c36, d41, c48, b5, a12, b17, a24, b29, a36, b41, a 48, a42, b35, a30, b23, a18, b11, a6, b47, c42, d35, c30, d23, c18, d11, c6, d47, e42, f35, e30, f23, e18, f11, e6 , f47, f6, e13, f18, e25, f30, e37, f42, e1, d6, c13, d18, c25, d30, c37, d42, c1, b6, a13, b18, a25, b30, a37, b4 2, a1, a43, b36, a31, b24, a19, b48, c43, d36, c31, b24, c19, d12, c7, d48, e43, f36, e31, f24, e19, f12, e7, f48; The third phase line group W1 is arranged in the positive direction of the current in the following order: f9, e16, f21, e29, f33, e40, f45, e4, d9, c16, d21, c28, d33, c40, d45, c4, b9, a16, b21, a28, b33, a40, b45, a4, a46, b39, a34, b27, a22, b15, a10, b3, c46, d39, c34, d27, c22, d15, c10, d3, e46, f39, e34, f27, e22, f15, e11, f3, f10, e17, f22, e29, f34, e41, f46, e5, d10, c17, d22, c29, d34, c41, d46, c5, b10, a17, b22, a29, b34, a41, b 46, a5, a47, b40, a35, b29, a23, b4, c47, d40, c35, b28, c23, d16, c11, d4, e47, f40, e35, f29, e23, f16, e11, f4.

5. The six-layer flat copper wire winding structure according to claim 4, characterized in that: The windings of the second phase line group are the first phase line group U2, the second phase line group V2, and the third phase line group W2, and the first phase line group U2 is arranged in the positive direction of the current in sequence: f5, e12, f17, e24, f29, e36, f41, e48, d5, c12, d17, c24, d29, c36, d41, c48, b5, a12, b17, a24, b29, a36, b41, a 48, a42, b35, a30, b23, a18, b11, a6, b47, c42, d35, c30, d23, c18, d11, c6, d47, e42, f35, e30, f23, e18, f11, e6 , f47, f6, e13, f18, e25, f30, e37, f42, e1, d6, c13, d18, c25, d30, c37, d42, c1, b6, a13, b18, a25, b30, a37, b4 2, a1, a43, b36, a31, b24, a19, b48, c43, d36, c31, b24, c19, d12, c7, d48, e43, f36, e31, f24, e19, f12, e7, f48; The second phase line group V2 is arranged in the positive direction of the current in the following order: f9, e16, f21, e29, f33, e40, f45, e4, d9, c16, d21, c28, d33, c40, d45, c4, b9, a16, b21, a28, b33, a40, b45, a4, a46, b39, a34, b27, a22, b15, a10, b3, c46, d39, c34, d27, c22, d15, c10, d3, e46, f39, e34, f27, e22, f15, e11, f3, f10, e17, f22, e29, f34, e41, f46, e5, d10, c17, d22, c29, d34, c41, d46, c5, b10, a17, b22, a29, b34, a41, b 46, a5, a47, b40, a35, b29, a23, b4, c47, d40, c35, b28, c23, d16, c11, d4, e47, f40, e35, f29, e23, f16, e11, f4; The third phase line group W2 is arranged in the positive direction of the current in the following order: f1, e8, f13, e20, f25, e32, f37, e44, d1, c8, d13, c20, d25, c32, d37, c44, b1, a8, b13, a20, b25, a32, b37, a44, a38, b31, a26, b19, a14, b7, a2, b43, c38, d31, c26, d19, c14, d7, c2, d43, e38, f31, e26, f19, e14, f7, e2, f43, f2, e9, f14, e21, f26, e33, f38, e45, d2, c9, d14, c21, d26, c33, d38, c45, b2, a9, b14, a21, b26, a33, b38, a45, a39, b32, a27, b20, a15, b8, a3, b44, c39, d32, c27, d20, c15, d8, c3, d44, e39, f32, e27, f20, e15, f8, e3, f44.

6. The six-layer flat copper wire winding structure according to claim 5, characterized in that: Position f1 of the first phase line group U1, position f5 of the first phase line group U2, position f5 of the second phase line group V1, position f9 of the second phase line group V2, position f9 of the first phase line group W1, and position f1 of the first phase line group W2 are positive terminals.

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