CN220475480U

CN220475480U - Flat wire winding end connection structure, stator assembly and motor thereof

Info

Publication number: CN220475480U
Application number: CN202321646424.6U
Authority: CN
Inventors: 刘凡华; 吴从波; 陈静
Original assignee: Lishui Fangde Zhiqu Applied Technology Research Institute Co ltd
Current assignee: Lishui Fangde Zhiqu Applied Technology Research Institute Co ltd
Priority date: 2023-06-27
Filing date: 2023-06-27
Publication date: 2024-02-09
Anticipated expiration: 2033-06-27

Abstract

The utility model relates to a flat wire winding end connection structure, a stator assembly and a motor thereof. According to the utility model, the clamping sleeves are sleeved at the end parts of the two flat wire conductors to realize the fixation and connection conduction of the two flat wire conductors, and the connection process of the two flat wire conductors is simpler: welding tools and welding equipment are not needed, and coating is not needed; and the connecting structure of the utility model has higher universality: the same flat wire specification is applicable, so that the process development time is shortened; meanwhile, the two flat wire conductors are connected by the clamping sleeve, so that welding high-temperature damage plastic-coated insulation cannot be generated, and the insulation reliability is higher.

Description

Flat wire winding end connection structure, stator assembly and motor thereof

Technical Field

The utility model relates to the field of new energy driving motors, in particular to a flat wire winding end connection structure, a stator assembly and a motor thereof.

Background

With the popularization of new energy automobiles in China, the requirements on the performance and the volume of a driving motor are higher and higher. The flat wire motor has higher power density and better heat dissipation capacity, can obviously reduce noise and vibration, and becomes a main technical development direction in the field of new energy automobile driving motors.

Compared with the traditional round wire winding, the flat wire motor has various advantages, but the material and manufacturing difficulty of the flat wire motor are obviously improved. Specific welding tools and welding equipment are needed for the flat wire motors with different specifications, so that the universality is low, and the cost is too high; after various flat copper wires are inserted into the stator core, flaring, twisting and welding are required to be carried out on the end parts of the flat copper wires, enamelled wire paint films around welding points are easy to damage in the welding process, and the insulation reliability is reduced; in addition, because the hairpins cannot be perfectly and orderly or need to be processed, the more the number of layers of the flat wire is, the more points need to be welded, the longer the manufacturing time is, and the production efficiency of the flat wire stator is seriously affected.

Disclosure of Invention

In order to solve the above-mentioned problems, a first object of the present utility model is to provide a flat wire winding end connection structure which is convenient to operate and can ensure insulation reliability, and a second object of the present utility model is to provide a stator assembly which is high in production efficiency, and a third object of the present utility model is to provide a motor.

In order to achieve the first object, the present utility model adopts the following technical scheme:

the utility model provides a flat wire winding end connection structure, includes flat wire conductor and cutting ferrule, the cutting ferrule is flat bottom inverted U-shaped, and the cutting ferrule cover is established at the tip of two flat wire conductors.

As a preferable scheme: and two inner walls of the opening of the clamping sleeve are provided with clamping ribs, and the clamping ribs are propped against the side walls of the flat wire conductors.

As a preferable scheme: the longitudinal section of the clamping convex edge is triangular.

As a preferable scheme: the cutting ferrule includes the shell body and inlays the metal connector of establishing in the shell body, and the metal connector of two inner walls departments of cutting ferrule sees out the shell body, and the metal connector makes two flat wire conductors switch on.

As a preferable scheme: the outer shell is made of insulating materials.

As a preferable scheme: the plurality of cutting sleeves are integrally formed along the radial direction or the axial direction.

As a preferable scheme: the outgoing line directions of the two flat wire conductors are different and are crossed in an oblique direction X.

In order to achieve the second object, the present utility model adopts the following technical scheme:

a stator assembly comprising a stator core and a flat wire winding inserted in the stator core, wherein the flat wire winding adopts the flat wire winding end connection structure according to any one of the above.

As a preferable scheme: the flat wire conductor is also connected with the neutral point copper bar through a clamping sleeve.

In order to achieve the third object, the present utility model adopts the following technical scheme:

the motor comprises a shell, a rotor assembly and a stator assembly, wherein the stator assembly is fixed in the shell, the rotor assembly is arranged in the stator assembly, and two ends of the rotor assembly are respectively connected with the shell in a rotating way; the method is characterized in that: the stator assembly is as described above.

Compared with the prior art, the utility model has the beneficial effects that:

according to the utility model, the clamping sleeves are sleeved at the end parts of the two flat wire conductors to realize the fixation and connection conduction of the two flat wire conductors, and the connection process of the two flat wire conductors is simpler: welding tools and welding equipment are not needed, and coating is not needed; and the connecting structure of the utility model has higher universality: the same flat wire specification is applicable, so that the process development time is shortened; meanwhile, the two flat wire conductors are connected by the clamping sleeve, so that welding high-temperature damage plastic-coated insulation cannot be generated, and the insulation reliability is higher.

Drawings

The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiments of the application and together with the description serve to explain the application and do not limit the application.

FIG. 1 is a schematic view of a stator assembly according to the present utility model;

FIG. 2 is a schematic view of the structure of the winding and ferrule of the present utility model;

FIG. 3 is an enlarged partial schematic view of the winding and ferrule of the present utility model;

FIG. 4 is a schematic view of the ferrule of the present utility model;

FIG. 5 is a schematic cross-sectional view of a ferrule of the present utility model;

the reference numerals are: 1. a stator core; 2. a flat wire conductor; 3. a cutting sleeve; 31. an outer housing; 32. a metal connector; 33. and the locking convex edge.

Detailed Description

It should be noted that the following detailed description is illustrative and is intended to provide further explanation of the present application. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments in accordance with the present application. As used herein, the singular is also intended to include the plural unless the context clearly indicates otherwise, and furthermore, it is to be understood that the terms "comprises" and/or "comprising" when used in this specification are taken to specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof.

Furthermore, in the description of the present utility model, it should be understood that the terms "center," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "clockwise," "counterclockwise," etc. indicate or are based on the orientation or positional relationship shown in the drawings, merely for convenience of description and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the utility model.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present utility model, unless otherwise specified, the meaning of "a plurality" is two or more, unless otherwise clearly defined.

In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

In the present utility model, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.

The utility model is further illustrated by the following examples in conjunction with the accompanying drawings:

the stator assembly shown in fig. 1 comprises a stator core 1 and flat wire windings inserted in the stator core 1, wherein the flat wire windings adopt a flat wire winding end connection structure shown in fig. 2 and 3, the structure comprises flat wire conductors 2 and clamping sleeves 3, the clamping sleeves 3 are flat bottom inverted U-shaped, the clamping sleeves 3 are sleeved at the ends of the two flat wire conductors 2, and a plurality of clamping sleeves 3 are integrally formed in the radial direction or the axial direction. The two flat wire conductors 2 are different in wire-outlet direction, including but not limited to, the wire-outlet direction being diagonally crossed by X. The flat wire conductor 2 and the neutral point copper bar can also be connected through the clamping sleeve 3, and of course, the flat wire conductor and other flat conductors can also be connected through the clamping sleeve, and the connection is not limited to the neutral point copper bar.

As shown in fig. 4 and 5, two inner walls at the opening of the ferrule 3 are provided with locking ribs 33, the locking ribs 33 are abutted against the side walls of the flat wire conductor 2, and the longitudinal section of the locking ribs 33 is triangular. The cutting ferrule 3 includes shell body 31 and inlays the metal connector 32 of establishing in shell body 31, and the metal connector 32 of two inner walls departments of cutting ferrule 3 sees out shell body 31, and metal connector 32 makes two flat wire conductors 2 switch on, shell body 31 is insulating material.

The motor comprises a shell, a rotor assembly and a stator assembly, wherein the stator assembly is fixed in the shell, the rotor assembly is arranged in the stator assembly, and two ends of the rotor assembly are respectively connected with the shell in a rotating way; the stator assembly is as described above.

According to the utility model, the clamping sleeves are sleeved at the end parts of the two flat wire conductors to realize the fixation, connection and conduction of the two flat wire conductors, and the connection process is simpler: welding tools and welding equipment are not needed, and coating is not needed; and the connecting structure of the utility model has higher universality: the same flat wire specification is applicable, so that the process development time is shortened; meanwhile, the two flat wire conductors are connected by the clamping sleeve, so that welding high-temperature damage plastic-coated insulation cannot be generated, and the insulation reliability is higher.

In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present utility model. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

Although embodiments of the present utility model have been shown and described above, it will be understood that the above embodiments are illustrative and not to be construed as limiting the utility model, and that variations, modifications, alternatives and variations may be made to the above embodiments by those skilled in the art without departing from the spirit and principles of the utility model, and any simple modification, equivalent variation and modification of the above embodiments in light of the technical principles of the utility model may be made within the scope of the present utility model.

Claims

1. A flat wire winding end connection structure is characterized in that: the flat wire conductor comprises flat wire conductors (2) and clamping sleeves (3), wherein the clamping sleeves (3) are in a flat bottom inverted U shape, and the clamping sleeves (3) are sleeved at the ends of the two flat wire conductors (2).

2. A flat wire winding end connection structure according to claim 1, wherein: two inner walls of the opening of the clamping sleeve (3) are provided with clamping ribs (33), and the clamping ribs (33) are propped against the side wall of the flat wire conductor (2).

3. A flat wire winding end connection structure according to claim 2, wherein: the longitudinal section of the locking convex rib (33) is triangular.

4. A flat wire winding end connection structure according to claim 1, wherein: the cutting ferrule (3) includes shell body (31) and inlays metal connector (32) of establishing in shell body (31), and metal connector (32) of cutting ferrule (3) two inner walls department see out shell body (31), and metal connector (32) make two flat wire conductors (2) switch on.

5. The flat wire winding end connection structure according to claim 4, wherein: the outer housing (31) is an insulating material.

6. A flat wire winding end connection structure according to claim 1, wherein: the cutting sleeves (3) are integrally formed along the radial direction or the axial direction.

7. A flat wire winding end connection structure according to claim 1, wherein: the outgoing line directions of the two flat wire conductors (2) are different and are crossed in an oblique direction X.

8. The utility model provides a stator module, includes stator core (1) and inserts the flat wire winding of establishing in stator core (1), its characterized in that: the flat wire winding employs the flat wire winding end connection structure as defined in any one of claims 1 to 7.

9. A stator assembly according to claim 8, wherein: the flat wire conductor (2) is also connected with the neutral point copper bar through the clamping sleeve (3).

10. The motor comprises a shell, a rotor assembly and a stator assembly, wherein the stator assembly is fixed in the shell, the rotor assembly is arranged in the stator assembly, and two ends of the rotor assembly are respectively connected with the shell in a rotating way; the method is characterized in that: the stator assembly of claim 8 or 9.