CN211830377U

CN211830377U - Three-phase motor stator winding

Info

Publication number: CN211830377U
Application number: CN202020424114.XU
Authority: CN
Inventors: 康明通; 任成波; 周开放; 李文亮
Original assignee: Ningbo Jingcheng Car Industry Co ltd
Current assignee: Ningbo Jingcheng Car Industry Co ltd
Priority date: 2020-03-27
Filing date: 2020-03-27
Publication date: 2020-10-30
Anticipated expiration: 2030-03-27

Abstract

The utility model discloses a three-phase motor stator winding aims at providing one kind and does benefit to miniaturized three-phase motor stator winding, and its technical scheme main points include: the stator is provided with a wire slot for accommodating a stator winding, and the stator winding comprises a U-phase winding, a V-phase winding and a W-phase winding; the terminal comprises an end cover, and a first connecting terminal, a second connecting terminal and a third connecting terminal which are arranged on the end cover; the U1 leading-out end of the U-phase winding and the V2 leading-out end of the V-phase winding are positioned in the same wire slot and are connected with a first wiring terminal; the V1 leading-out end of the V-phase winding and the W2 leading-out end of the W-phase winding are positioned in the same wire slot and are connected with a second wiring terminal; w1 of W looks winding draws forth the end and U2 of U looks winding draws forth the end and is located same wire casing to be connected with third binding post, the utility model discloses be suitable for motor technical field.

Description

Three-phase motor stator winding

Technical Field

The utility model relates to the technical field of electric machines, more precisely relate to a three-phase motor stator winding.

Background

At present, for a stator winding of a three-phase motor, the head and the tail ends of the U, V, W winding of each phase pass through independent wire slots through outgoing wires respectively, the outgoing wires of the head and the tail ends of the windings of two groups of phases are connected through a bridging piece, and the outgoing wires between the bridging piece and the stator are fixed through a wire wrapping plate.

Disclosure of Invention

Aiming at the defects and shortcomings of the prior art, the stator winding of the three-phase motor is beneficial to miniaturization.

In order to achieve the above object, the present invention provides the following technical solutions.

A three-phase electric machine stator winding comprising:

the stator is provided with a wire slot for accommodating a stator winding, and the stator winding comprises a U-phase winding, a V-phase winding and a W-phase winding;

the terminal comprises an end cover, and a first connecting terminal, a second connecting terminal and a third connecting terminal which are arranged on the end cover;

the U1 leading-out end of the U-phase winding and the V2 leading-out end of the V-phase winding are positioned in the same wire slot and are connected with a first wiring terminal;

the V1 leading-out end of the V-phase winding and the W2 leading-out end of the W-phase winding are positioned in the same wire slot and are connected with a second wiring terminal;

and the W1 leading-out end of the W-phase winding and the U2 leading-out end of the U-phase winding are positioned in the same wire slot and are connected with a third wiring terminal.

After the structure above adopting, the utility model discloses a three-phase motor stator winding compares with prior art, has following advantage: the U1 leading-out end of the U-phase winding and the V2 leading-out end of the V-phase winding are positioned in the same wire slot and are directly connected with the first wiring terminal, the V1 leading-out end of the V-phase winding and the W2 leading-out end of the W-phase winding are positioned in the same wire slot and are directly electrically connected with the second wiring terminal, the W1 leading-out end of the W-phase winding and the U2 leading-out end of the U-phase winding are positioned in the same wire slot and are directly electrically connected with the third wiring terminal, the leading-out ends of the two groups of different-phase windings directly penetrate through the same group of wire slots to be connected with the wiring terminals, the use of a bridging; meanwhile, the motor has the characteristics of reducing the assembly space and facilitating the miniaturization of the motor.

As an improvement of the utility model, first binding post draws forth end and V2 of V phase winding with U1 and draws forth the end and set up relatively, and second binding post draws forth end and W2 of W phase winding with the V1 of V phase winding and draws forth the end and set up relatively, and third binding post draws forth end and U2 of U phase winding and sets up relatively with the W1 of W phase winding. The leading-out ends of a group of wiring terminals and two groups of windings are arranged oppositely, so that the distance is reduced, the leading-out distance of the leading-out wires is further reduced, and the winding structure has the characteristics of reducing the production cost, facilitating connection and reducing the assembly space.

As an improvement of the utility model, it is provided with 12 groups of stator poles to be the annular interval on the stator, and forms between the adjacent stator pole the wire casing.

As an improvement of the utility model, U phase winding, V phase winding and W phase winding pass the wire casing with the law of 2 stator poles respectively and wind and establish on the stator.

As an improvement of the utility model, U phase winding, V phase winding and W phase winding adopt the triangle-shaped to connect the method and connect.

Drawings

Fig. 1 is a schematic diagram of the explosion structure of the present invention.

Fig. 2 is a schematic view of the winding structure of the present invention.

Fig. 3 is a schematic position diagram of the U-phase winding outgoing line, the V-phase winding outgoing line, and the W-phase winding outgoing line of the present invention.

Fig. 4 is a winding schematic diagram of the U-phase winding, the V-phase winding, and the W-phase winding according to the present invention.

Fig. 5 is a schematic connection diagram of the U-phase winding, the V-phase winding, and the W-phase winding according to the present invention.

Shown in the figure: 1. a stator; 2. a wire slot; 21. a U-phase winding; 22. a V-phase winding; 23. a W-phase winding; 3. an end cap; 41. a first connection terminal; 42. a second connection terminal; 43. a third connection terminal; 5. a stator pole.

Detailed Description

The invention will be further explained with reference to the drawings and the specific embodiments.

Referring to fig. 1-3, the present invention provides a three-phase motor stator winding, comprising:

the stator winding comprises a stator 1, wherein a wire slot 2 for accommodating a stator winding is arranged on the stator 1, and the stator winding comprises a U-phase winding 21, a V-phase winding 22 and a W-phase winding 23;

the terminal cover 3, and a first connection terminal 41, a second connection terminal 42 and a third connection terminal 43 which are arranged on the terminal cover 3;

the U1 leading-out end of the U-phase winding 21 and the V2 leading-out end of the V-phase winding 22 are positioned in the same wire slot 2 and are connected with a first connecting terminal 41;

the V1 leading-out end of the V-phase winding 22 and the W2 leading-out end of the W-phase winding 23 are positioned in the same wire slot 2 and are connected with a second connecting terminal 42;

the W1 leading-out end of the W-phase winding 23 and the U2 leading-out end of the U-phase winding 21 are positioned in the same wire slot 2 and are connected with a third connecting terminal 43. The U1 leading-out end of the U-phase winding 21 and the V2 leading-out end of the V-phase winding 22 are positioned in the same wire slot 2 and are directly connected with the first wiring terminal 41, the V1 leading-out end of the V-phase winding 22 and the W2 leading-out end of the W-phase winding 23 are positioned in the same wire slot 2 and are directly electrically connected with the second wiring terminal 42, the W1 leading-out end of the W-phase winding 23 and the U2 leading-out end of the U-phase winding 21 are positioned in the same wire slot 2 and are directly electrically connected with the third wiring terminal 43, the leading-out ends of two groups of different-phase windings directly penetrate through the same wire slot 2 and are connected with the wiring terminals, the leading-out ends of the two groups of different-phase windings directly penetrate through the same wire slot and are connected; meanwhile, the motor has the characteristics of reducing the assembly space and facilitating the miniaturization of the motor.

The first connection terminal 41 is arranged opposite to the U1 leading-out terminal and the V2 leading-out terminal of the V-phase winding 22, the second connection terminal 42 is arranged opposite to the V1 leading-out terminal of the V-phase winding 22 and the W2 leading-out terminal of the W-phase winding 23, and the third connection terminal 43 is arranged opposite to the W1 leading-out terminal of the W-phase winding 23 and the U2 leading-out terminal of the U-phase winding 21.

Referring to fig. 2, 4 and 5, 12 sets of stator 1 poles are annularly arranged on the stator 1 at intervals, and the slot 2 is formed between adjacent stator 1 poles. The U-phase winding 21, the V-phase winding 22 and the W-phase winding 23 respectively penetrate through the wire slot 2 according to the rule of 2 stator poles 5 and are wound on the stator 1.

Referring to fig. 5, the U-phase winding 21, the V-phase winding 22, and the W-phase winding 23 are connected in a delta connection.

When the worker installs the end cover 3, the first wiring terminal 41 on the end cover 3 and the leading-out end of U1 and the leading-out end of V2 of the V-phase winding 22 are arranged oppositely, the second wiring terminal 42 and the leading-out end of V1 of the V-phase winding 22 and the leading-out end of W2 of the W-phase winding 23 are arranged oppositely, the third wiring terminal 43 and the leading-out end of W1 of the W-phase winding 23 and the leading-out end of U2 of the U-phase winding 21 are arranged oppositely, a single group of wiring terminals and the leading-out ends of two groups of windings are arranged oppositely, the distance is reduced, and further the leading-out distance of the leading-out wires is reduced.

Above only the utility model discloses an it is preferred embodiment, the utility model discloses a scope of protection not only limits in above-mentioned embodiment, and the all belongs to the utility model discloses a technical scheme under the thinking all belongs to the utility model discloses a scope of protection. It should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.

Claims

1. A three-phase motor stator winding, comprising:

the stator winding comprises a stator (1), wherein a wire slot (2) for accommodating a stator winding is formed in the stator (1), and the stator winding comprises a U-phase winding (21), a V-phase winding (22) and a W-phase winding (23);

the terminal comprises an end cover (3), and a first wiring terminal (41), a second wiring terminal (42) and a third wiring terminal (43) which are arranged on the end cover (3);

the U1 leading-out end of the U-phase winding (21) and the V2 leading-out end of the V-phase winding (22) are positioned in the same wire slot (2) and are connected with a first wiring terminal (41);

the V1 leading-out end of the V-phase winding (22) and the W2 leading-out end of the W-phase winding (23) are positioned in the same wire slot (2) and are connected with a second wiring terminal (42);

the W1 leading-out end of the W-phase winding (23) and the U2 leading-out end of the U-phase winding (21) are positioned in the same wire slot (2) and are connected with a third wiring terminal (43).

2. A stator winding for a three-phase electric machine according to claim 1, wherein: the first connecting terminal (41) is arranged opposite to the U1 leading-out end and the V2 leading-out end of the V-phase winding (22), the second connecting terminal (42) is arranged opposite to the V1 leading-out end of the V-phase winding (22) and the W2 leading-out end of the W-phase winding (23), and the third connecting terminal (43) is arranged opposite to the W1 leading-out end of the W-phase winding (23) and the U2 leading-out end of the U-phase winding (21).

3. A stator winding for a three-phase electric machine according to claim 1, wherein: 12 groups of stator poles (5) are arranged on the stator (1) at intervals in an annular mode, and the wire slots (2) are formed between the adjacent stator poles (5).

4. A stator winding for a three-phase electric machine according to claim 2, wherein: the U-phase winding (21), the V-phase winding (22) and the W-phase winding (23) penetrate through the wire slots (2) and are wound on the stator (1) according to the rule of 2 stator poles (5).

5. A stator winding for a three-phase electric machine according to claim 1, wherein: the U-phase winding (21), the V-phase winding (22) and the W-phase winding (23) are connected in a delta connection mode.