CN218940810U

CN218940810U - Winding end-to-end structure, tooling and wind driven generator

Info

Publication number: CN218940810U
Application number: CN202320115709.0U
Authority: CN
Inventors: 古蕊
Original assignee: Beijing Sany Intelligent Motor Co ltd
Current assignee: Beijing Sany Intelligent Motor Co ltd
Priority date: 2023-01-12
Filing date: 2023-01-12
Publication date: 2023-04-28
Anticipated expiration: 2033-01-12

Abstract

The utility model discloses a winding parallel head structure which comprises a first lead, a second lead and a V-shaped groove, wherein the end part of the second lead and the end part of the first lead are arranged side by side to form a parallel head end; the V-shaped groove is arranged at the parallel head end and is used for filling welding materials to form a welding seam, and the opening section of the V-shaped groove takes the contact surface of the first lead and the second lead as a starting point and gradually increases along the axial direction of the parallel head end. Therefore, in the winding parallel head structure provided by the utility model, the end part of the first lead and the end part of the second lead are arranged side by side to form the parallel head end, the parallel head position is provided with the open pore, the section of the open pore takes the contact surface of the first lead and the second lead as a starting point, and the open pore is gradually enlarged along the axial direction of the parallel head end so as to form the V-shaped groove, and the V-shaped groove can accommodate welding operation. In addition, the structure is simple, auxiliary backing plates, head combining sleeves and other parts are not needed during welding, and cost reduction is facilitated.

Description

Winding end-to-end structure, tooling and wind driven generator

Technical Field

The utility model relates to the technical field of aluminum winding parallel head welding, in particular to a winding parallel head structure, a tooling for cutting the parallel head structure and a wind driven generator with the parallel head structure.

Background

At present, a copper winding and parallel head sleeve welding structure is commonly used for a generator in the industry, but the cost is higher than that of an aluminum winding stator design. As wind power generators enter the flat age, in order to ensure the cost competitive advantage of products, the design of the generator adopting an aluminum winding stator becomes more and more a mainstream trend. The aluminum winding stator and the traditional copper winding stator are welded by coils of a pole phase group, and according to the characteristics of aluminum, an argon arc fusion welding process is generally adopted for welding, but the argon arc welding quality of the generator pole phase group is greatly influenced by the skill level of operators, and the structural design and the process of related welding joints are particularly critical.

Therefore, how to reduce the skill level of the operator to the problem of poor quality of the copper winding stator pole group coil welding is a technical problem to be solved by the person skilled in the art.

Disclosure of Invention

In view of the above, the present utility model is directed to a winding parallel head structure, a tooling for cutting the parallel head structure, and a wind driven generator provided with the parallel head structure.

In order to achieve the above purpose, the present utility model provides the following technical solutions:

a winding end-to-end structure comprising:

a first lead;

a second lead, an end of which is arranged side by side with an end of the first lead to form a head end;

the V-shaped groove is arranged at the parallel head end and is used for filling welding materials to form a welding line, and the opening section of the V-shaped groove takes the contact surface of the first lead and the second lead as a starting point and gradually increases along the axial direction of the parallel head end.

Optionally, in the winding parallel head structure, the V-groove includes:

the first V-shaped groove is arranged at the parallel head end of the first lead;

the second V-shaped groove is arranged at the parallel head end of the second lead, and the first V-shaped groove and the second V-shaped groove are symmetrically arranged along the contact surface of the first lead and the second lead.

Optionally, in the winding parallel head structure, the first lead wire includes at least three layers of coils arranged in an overlapping manner;

the second lead includes at least three layers of coils arranged in an overlapping manner, and the number of coils of the second lead is the same as the number of coils of the first lead.

Optionally, in the winding parallel head structure, the angle and thickness of the V-shaped groove are adapted to the required conductive area of the parallel head structure.

A tool for standardizing the scribing track of the V-groove when manufacturing the winding end-to-end structure, comprising a positioning plate, wherein the positioning plate comprises:

the V-shaped part comprises a sharp angle end and a straight end, the angle of the sharp angle end is matched with the angle of the V-shaped groove, the dimension of the straight end along a first direction is equal to the sum of the dimensions of the first lead and the second lead along the first direction, and the first direction is a direction perpendicular to the contact surface of the first lead and the second lead;

and the straight part is connected with the straight end.

Optionally, in the above tool, a dimension of the straight portion along the first direction is greater than a dimension of the straight end along the first direction;

the projection of the straight part along the second direction can cover the projection of the straight end along the second direction;

the second direction is a direction parallel to the contact surface.

Optionally, in the above-mentioned tooling,

the two positioning plates are arranged in parallel, and the vertical distance between the two positioning plates is matched with the line width of the first lead wire and the line width of the second lead wire;

the positioning plate further comprises a connecting part, and two ends of the connecting part are respectively connected with the straight parts of the two positioning plates.

Optionally, in the foregoing tooling, the tool further includes a grip portion:

the holding part is connected with the connecting part;

or the holding part is connected with the positioning plate.

A wind driven generator comprises the winding parallel head structure.

According to the winding parallel head structure provided by the utility model, the end part of the first lead and the end part of the second lead are arranged side by side to form the parallel head end, the parallel head position is provided with the opening, the cross section of the opening is gradually enlarged along the axial direction of the parallel head end by taking the contact surface of the first lead and the second lead as a starting point, so that a V-shaped groove is formed, the V-shaped groove can accommodate welding operation, in addition, the structure is simple, and auxiliary backing plates, parallel head sleeves and other parts are not needed during welding, so that the cost is reduced. In addition, the smooth V-shaped groove can achieve consistent joint size and smooth welding surface, reduce operation difficulty, ensure welding quality and consistency, and reduce the skill requirement on operators. And moreover, an operator is facilitated to observe the molten pool conveniently, the unfused welding defect is easy to eliminate, auxiliary materials are not required to be applied, and the consistency of the welding line quality is high.

Drawings

In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic structural diagram of a winding parallel head structure according to an embodiment of the present utility model;

FIG. 2 is a plan view of a positioning plate according to an embodiment of the present utility model;

fig. 3 is a top view of a tooling provided in an embodiment of the present utility model.

Wherein:

1-a first lead, 2-a second lead, a 3-V-shaped groove, 4-a locating plate,

41-V-shaped portion, 42-straight portion, 43-connecting portion.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

In the description of the present utility model, it should be noted that, directions or positional relationships indicated by terms such as "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "inner", "outer", etc., are directions or positional relationships based on those shown in the drawings, or directions or positional relationships in which the inventive product is conventionally put in use, are merely for convenience of describing the present utility model and for simplifying the description, and are not indicative or implying that the apparatus or element to be referred to must have a specific direction, be constructed and operated in a specific direction, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

As shown in fig. 1 to 3, an embodiment of the present utility model provides a winding parallel head structure, which includes a first lead 1, a second lead 2, and a V-groove 3, wherein an end of the second lead 2 and an end of the first lead 1 are arranged side by side to form a parallel head end; the V-shaped groove 3 is arranged at the parallel head end and is used for filling welding materials to form a welding seam, the V-shaped groove 3 is formed by removing part of the end part of the first lead 1 and removing part of the end part of the second lead 2, and the opening section of the V-shaped groove 3 takes the contact surface of the first lead 1 and the second lead 2 as a starting point and gradually increases along the axial direction of the parallel head end.

Therefore, in the winding parallel head structure provided by the utility model, the end part of the first lead 1 and the end part of the second lead 2 are arranged side by side to form the parallel head end, the parallel head position is provided with the V-shaped groove 3, the opening section of the V-shaped groove 3 takes the contact surface of the first lead 1 and the second lead 2 as a starting point, the axial direction of the parallel head end is gradually enlarged, and the V-shaped groove 3 can accommodate welding operation. In addition, the structure is simple, auxiliary backing plates, head combining sleeves and other parts are not needed during welding, and cost reduction is facilitated. In addition, the smooth V-shaped groove 3 can achieve consistent joint size and smooth welding surface, reduce operation difficulty, ensure welding quality and consistency, and reduce the skill requirement on operators. And moreover, an operator is facilitated to observe the molten pool conveniently, the unfused welding defect is easy to eliminate, auxiliary materials are not required to be applied, and the consistency of the welding line quality is high. The V-shaped groove 3 is beneficial to solving the problem that the butt joint gaps of all joints are inconsistent due to the design of the bending structure, and meanwhile, steps formed by layers can be eliminated, wherein each step is required to be firmly bottomed, an operator is required to input energy for a long time, the gun swinging skill is exerted, and the skill requirement on the operator is very high.

In specific implementation, the V-shaped groove 3 comprises a first V-shaped groove and a second V-shaped groove, wherein the first V-shaped groove is arranged at the parallel head end of the first lead 1; the second V-shaped groove is arranged at the end of the second lead 2, and the first V-shaped groove and the second V-shaped groove are symmetrically arranged along the contact surface of the first lead 1 and the second lead 2. That is, V-groove 3 has an axisymmetric structure with respect to the contact surface between first lead 1 and second lead 2. The preparation of the V-shaped groove 3 is convenient, and meanwhile, the construction of operators is facilitated.

In particular, the first lead 1 comprises at least three layers of coils arranged in an overlapping manner; the second lead 2 includes at least three layers of coils arranged in overlapping, and the number of coils of the second lead 2 is the same as that of the first lead 1. The first lead 1 and the second lead 2 have the same coil number, so that butt joint and butt joint can be met. In addition, when the number of coils is at least three, the design is more beneficial to the structure of the V-shaped groove 3, namely, the V-shaped groove 3 is theoretically suitable for the structure with more coils, when the number of coils is one layer or two layers, the problem that the gaps of all joints are inconsistent is not needed to be considered, and the welding quality and other factors have low requirements on the skills of operators.

In specific implementation, the angle and thickness of the V-shaped groove 3 are matched with the required conductive area of the parallel head structure. The V-groove 3 is formed by determining two factors (i.e., angle and thickness) to determine the specific dimensions of the V-groove 3, the determination of the two factors being dependent on the desired conductive area of the parallel head structure.

The embodiment of the utility model provides a tool, which is used for standardizing the scribing track of a V-shaped groove 3 when the winding parallel head structure is manufactured, and comprises a positioning plate 4, wherein the positioning plate 4 comprises a V-shaped part 41 and a straight part 42, the V-shaped part 41 comprises a sharp corner end and a flat end, the angle of the sharp corner end is matched with the angle of the V-shaped groove 3, the size of the flat end along a first direction is equal to the sum of the sizes of a first lead 1 and a second lead 2 along the first direction, and the first direction is a direction perpendicular to the contact surface of the first lead 1 and the second lead 2; the straight portion 42 connects the straight ends. The angle and the depth of the V-shaped part 41 are consistent with those of the V-shaped groove 3, a datum line is drawn for the V-shaped groove 3 of the joint, a line drawing tool is used for drawing a welding groove angle contour line, the electric line cutting pliers are used for cutting out the joint of the V-shaped groove 3 along the line drawing contour line, the consistency of the joint size is realized, and meanwhile, the flatness of the welding surface of the joint is ensured. The conductive area can be adjusted through the angle change of the V-shaped groove 3, so that the filling area of the joint of the V-shaped groove 3 is consistent, and the problem of overlarge welding quantity caused by the bent joint is solved. In addition, the joint is cut through the tool scribing and the electric tool, so that the consistency is high, and the welding quality is easy to ensure.

In particular, the dimension of the straight portion 42 in the first direction is greater than the dimension of the straight end in the first direction; the projection of the straight portion 42 in the second direction can cover the projection of the straight end in the second direction; the second direction is a direction parallel to the contact surface. The V-shaped part 41 and the parallel head end are positioned conveniently, and scribing work is facilitated.

Optionally, two positioning plates 4 are arranged in parallel, and the vertical distance between the two positioning plates 4 is matched with the line widths of the first lead 1 and the second lead 2; and the connecting part 43 is also included, and two ends of the connecting part 43 are respectively connected with the straight parts 42 of the two positioning plates 4. The vertical distance (namely, bayonet) between the two positioning plates 4 is designed according to the line width of the lead wires, the first lead wire 1 and the second lead wire 2 are clamped into the bayonet for scribing, and the central symmetry of the V-shaped edges of the two V-shaped grooves 3 is ensured. The connection portion 43 is provided to fix the relative position between the two positioning plates 4, and is formed as a bayonet.

In specific implementation, the device further comprises a holding part, and the holding part is connected with the connecting part 43; alternatively, the grip portion is connected to the positioning plate 4. The setting of gripping portion makes things convenient for the operator to carry out marking operation to lead wire and head end, and the specific setting position of gripping portion can, does not influence its function effect of marking, and the specific setting position of gripping portion does not do not specifically limit, and the person of skill in the art can carry out the concrete design according to actual need.

The embodiment of the utility model provides a wind driven generator which comprises the winding parallel head structure. The first lead 1 is an upper lead of a coil in the wind driven generator, the second lead 2 is a lower lead of an adjacent coil of the coil to which the first lead 1 belongs, and the first lead 1 is connected with the second lead 2 to realize the serial connection of the adjacent coils. However, the first lead 1 may be a lower lead of a coil in a wind power generator, and the second lead 2 may be an upper lead of an adjacent coil of the coil to which the first lead 1 belongs.

The wind driven generator provided by the utility model comprises a winding parallel head structure, wherein the end part of a first lead 1 and the end part of a second lead 2 in the winding parallel head structure are arranged side by side to form a parallel head end, a V-shaped groove 3 is arranged at the parallel head position, the cross section of the V-shaped groove 3 takes the contact surface of the first lead 1 and the second lead 2 as a starting point, the cross section is gradually enlarged along the axial direction of the parallel head end, the V-shaped groove 3 can accommodate welding operation, in addition, the structure is simple, auxiliary backing plates, parallel head sleeves and other parts are not needed during welding, and the cost is reduced. In addition, the smooth V-shaped groove 3 can achieve consistent joint size and smooth welding surface, reduce operation difficulty, ensure welding quality and consistency, and reduce the skill requirement on operators. And moreover, an operator is facilitated to observe the molten pool conveniently, the unfused welding defect is easy to eliminate, auxiliary materials are not required to be applied, and the consistency of the welding line quality is high.

Finally, it is further noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises an element.

In the present specification, each embodiment is described in a progressive manner, and each embodiment is mainly described in a different point from other embodiments, and identical and similar parts between the embodiments are all enough to refer to each other.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present utility model. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the utility model. Thus, the present utility model is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A winding end-to-end structure comprising:

a first lead (1);

a second lead (2), wherein the end part of the second lead (2) and the end part of the first lead (1) are arranged side by side to form a head end;

the V-shaped groove (3) is arranged at the parallel head end and is used for filling welding materials to form a welding line, and the opening section of the V-shaped groove (3) takes the contact surface of the first lead (1) and the second lead (2) as a starting point, and gradually increases along the axial direction of the parallel head end.

2. Winding end-to-end structure according to claim 1, characterized in that the V-groove (3) comprises:

the first V-shaped groove is arranged at the parallel head end of the first lead (1);

the second V-shaped groove is formed in the parallel head end of the second lead (2), and the first V-shaped groove and the second V-shaped groove are symmetrically arranged along the contact surface of the first lead (1) and the second lead (2).

3. Winding end-to-end structure according to claim 1, characterized in that the first lead (1) comprises at least three layers of coils arranged in an overlapping manner;

the second lead (2) comprises at least three layers of coils which are arranged in an overlapping manner, and the number of coils of the second lead (2) is the same as the number of coils of the first lead (1).

4. Winding co-head structure according to claim 1, characterized in that the angle and thickness of the V-groove (3) are adapted to the required conductive area of the co-head structure.

5. Tooling for normalizing the scoring trajectory of the V-groove (3) when making a winding end-to-end structure according to any one of claims 1-4, characterized in that it comprises a positioning plate (4) comprising:

a V-shaped portion (41), the V-shaped portion (41) comprising a pointed end, the angle of which is adapted to the angle of the V-groove (3), and a flat end, the dimension of which in a first direction being equal to the sum of the dimensions of the first and second leads (1, 2) in the first direction, the first direction being a direction perpendicular to the contact surfaces of the first and second leads (1, 2);

-a straight portion (42), said straight portion (42) connecting said straight ends.

6. The tooling of claim 5, wherein a dimension of the flat portion (42) along the first direction is greater than a dimension of the flat end along the first direction;

a projection of the straight portion (42) in a second direction can cover a projection of the straight end in the second direction;

the second direction is a direction parallel to the contact surface.

7. The tooling according to claim 5, wherein,

the two positioning plates (4) are arranged in parallel, and the vertical distance between the two positioning plates (4) is matched with the line widths of the first lead (1) and the second lead (2);

the positioning device further comprises a connecting part (43), wherein two ends of the connecting part (43) are respectively connected with the straight parts (42) of the two positioning plates (4).

8. The tooling of claim 7, further comprising a grip:

the holding part is connected with the connecting part (43);

or the holding part is connected with the positioning plate (4).

9. A wind power generator comprising a winding end-to-end structure as claimed in any one of claims 1 to 4.