Toothless and slotless chain type winding

Abstract

The utility model relates to the technical field of motor windings, in particular to a toothless and slotless chain type winding, which comprises a plurality of groups of unit windings, the plurality of groups of unit windings are sequentially laminated to form a finished barrel winding, and the unit windings are connected in parallel; a plurality of unit windings are wound into a barrel-shaped structure layer by layer, so that a single-layer unit winding is combined into a multi-layer winding layer, and a plurality of unit windings are connected in parallel, the slot fullness rate of the whole winding is greatly increased, electrons of the whole winding are reduced, and the performance of the motor is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of motor windings, and particularly relates to a toothless and slotless chain winding. Background Art

[0002] For a toothless and slotless lap winding, a tooling is first used to wind the enameled wire into a single-layer flat winding tape, and then this single-layer flat winding tape is wound into a cylindrical winding. This single-layer winding has been continuously used because of its simple structure and good arrangement.

[0003] However, its disadvantages are also obvious. The single-layer wire package means that only a single enameled wire is used to wind the winding. The circumference of the finished cylindrical winding is equal to the length of the flat winding, which is equal to the length of the cross-sectional arrangement diagram of the single-layer winding. The formula should be as follows: the length of the flat winding = the diameter of a single enameled wire * the total number of wires.

[0004] It can be seen from the formula that when the circumference of the finished cylindrical winding is certain, the diameter of a single enameled wire and the total number of wires are inversely proportional. When the total number of wires is large, the diameter of a single enameled wire will be very small, and its total resistance will be very large. Such a winding has a low slot filling rate and weak motor performance. Summary of the Utility Model

[0005] In view of this, the purpose of the present utility model is to provide a toothless and slotless chain winding to solve the problems of large resistance and low slot filling rate of the existing single-layer winding.

[0006] Based on the above purpose, the present utility model provides a toothless and slotless chain winding, which includes unit windings. There are multiple groups of unit windings, and multiple groups of unit windings are stacked in sequence to form a finished winding, and the unit windings are connected in parallel.

[0007] Further improvement lies in that: the unit winding is a winding tape wound by enameled wire.

[0008] Further improvement lies in that: the unit winding is a single-layer flat structure.

[0009] Further improvement lies in that: at least two groups of unit windings are provided.

[0010] Further improvement lies in that: the length of each unit winding is equal to the circumference of the finished winding.

[0011] Further improvement lies in that: the finished winding is a cylindrical structure.

[0012] Advantages of the present utility model: By winding multiple unit windings and winding the multiple unit windings layer by layer into a cylindrical finished winding, a single-layer unit winding combination is realized into a multi-layer winding; by adopting a multi-layer winding structure, compared with the existing single-layer winding, the slot fill factor of the entire winding is greatly increased, the resistance of the entire winding is reduced, and the performance of the motor is improved. Brief Description of the Drawings

[0013] In order to more clearly illustrate the technical solutions in the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only those of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0014] Figure 1 Schematic diagram of three groups of unit windings after being flattened in an embodiment of the present utility model;

[0015] Figure 2 Schematic diagram of the cross-sectional arrangement of the finished winding in an embodiment of the present utility model.

[0016] The labels in the figure are:

[0017] 1. Unit winding; 2. Finished winding. Detailed Embodiment

[0018] To make the objectives, technical solutions and advantages of the present utility model clearer and more understandable, the following further details the present utility model in combination with specific embodiments.

[0019] It should be noted that unless otherwise defined, the technical terms or scientific terms used in the present utility model should have the ordinary meaning understood by those of ordinary skill in the field to which the present utility model belongs. The "first", "second" and similar terms used in the present utility model do not indicate any order, quantity or importance, but are only used to distinguish different components. The terms such as "including" or "comprising" mean that the elements or objects appearing before this term cover the elements or objects listed after this term and their equivalents, without excluding other elements or objects. The terms such as "connected" or "coupled" are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. The terms such as "upper", "lower", "left", "right" are only used to represent relative positional relationships, and when the absolute position of the object being described changes, the relative positional relationship may also change accordingly.

[0020] Such as Figure 1 , Figure 2As shown, a toothless and slotless chain winding includes unit windings 1. The unit winding 1 is a winding tape with a single-layer flat structure wound by enameled wire. There are multiple groups of unit windings 1. The multiple groups of unit windings 1 are stacked in sequence to form a finished winding 2. The finished winding 2 has a cylindrical structure; the unit windings 1 are connected in parallel. There are at least two groups of unit windings 1; the length (L) of each unit winding 1 is equal to the circumference of the finished winding 2.

[0021] The resistance value of each unit winding 1 is R. After n unit windings 1 are connected in parallel, the resistance value R0 of the entire finished winding 2 is: 。

[0022] By sequentially stacking multiple unit windings 1 to form a finished winding 2 and connecting the multiple unit windings 1 in parallel, the slot fill factor of the entire winding is greatly increased, the resistance of the entire winding is reduced, and the performance of the motor is improved.

[0023] Those of ordinary skill in the art should understand that: the discussion of any above embodiment is only exemplary and is not intended to imply that the scope of the present invention is limited to these examples; under the idea of the present invention, the technical features in the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other variations in different aspects of the present invention as described above, which are not provided in detail for the sake of brevity. Any omission, modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A toothless and slotless chain winding, characterized in that: The invention comprises a unit winding (1), wherein the unit winding (1) is provided with a plurality of groups, the plurality of groups of unit windings (1) are stacked in sequence to form a finished winding (2), and the unit windings (1) are connected in parallel.

2. A toothless and slotless chain winding according to claim 1, characterized in that: The unit winding (1) is a winding tape wound with enameled wire.

3. A toothless and slotless chain winding according to claim 2, characterized in that: The unit winding (1) is a single-layer flat structure.

4. The toothless and slotless chain winding according to claim 1, characterized in that: At least two groups of unit windings (1) are provided.

5. The toothless and slotless chain winding according to claim 1, characterized in that: The length of each unit winding (1) is equal to the circumference of the finished winding (2).

6. The toothless and slotless chain winding according to claim 1, characterized in that: The finished winding (2) is a cylindrical structure.

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