A winding and transformer

Abstract

The application is suitable for the technical field of winding, and provides a winding and a transformer. The winding comprises a framework, main winding wires and filling winding wires. The main winding wires and the filling winding wires are wound on the framework. The main winding wires form a plurality of main coils on the framework. The filling winding wires form filling coils on the framework. The filling coils are filled between two adjacent main coils. By winding the main winding wires and the filling winding wires on the framework, the gap between the main coils is filled by the filling coils, so that the distance between any two adjacent main coils is fixed and equal to the sum of the outer diameters of all the filling coils between the two adjacent main coils. The consistency of the distance between the two adjacent main coils in the winding is effectively improved, so that the product yield is effectively improved.

Description

Technical Field

[0001] This application relates to the field of winding technology, and more specifically, to a winding and a transformer. Background Technology

[0002] A winding is a group of coils formed by winding wires according to a specific pattern and method. In the field of transformers, the winding is one of the core components. Currently, windings are mainly made by winding wires onto a winding drum. However, because there are no reference scales on the winding drum, it is difficult to ensure consistent spacing between adjacent coils during the winding process. Even if reference scales are set on the winding drum, the winding precision requirements of the production machine are still high; otherwise, it is difficult to guarantee consistent spacing between adjacent coils, resulting in low product yield. Furthermore, during transportation, the coils on the winding drum are prone to displacement, ultimately leading to poor consistency in the spacing between adjacent coils on the winding. Utility Model Content

[0003] The purpose of this application is to provide a winding and a transformer, which aims to solve the technical problems of poor spacing consistency between adjacent coils in the prior art and low product yield.

[0004] To achieve the above objectives, the technical solution adopted in this application is as follows: In a first aspect, this application provides a winding, including a bobbin, a main winding, and filler windings, wherein: The main winding and the filler winding are wound together on the skeleton. The main winding forms a plurality of main coils on the skeleton, and the filler winding forms filler coils on the skeleton. The filler coils fill the space between two adjacent main coils.

[0005] According to the above technical solution, by winding the main winding and filler winding together on the skeleton, the gap between the main coils is filled by the filler coils, so that the spacing between any two adjacent main coils is fixed equal to the sum of the outer diameters of all the filler coils between the two adjacent main coils, which effectively improves the spacing consistency between two adjacent main coils in the winding, thereby effectively improving the product yield.

[0006] In one possible design, the number of filler windings is N, and N filler windings are arranged between any two adjacent main windings, where N is an integer greater than 0.

[0007] According to the above technical solution, the appropriate number of filler windings can be selected according to actual needs to adjust the number of filler windings between two adjacent main coils, thereby adjusting the spacing between two adjacent main coils so that the spacing between any two adjacent main coils can be close to or even equal to the preset spacing.

[0008] In one possible design, the spacing between two adjacent primary coils is N times the outer diameter of the filler winding.

[0009] According to the above technical solution, N filler coils can be filled exactly in the gap between two adjacent main coils, and the adjacent filler coils or adjacent filler coils are in close contact with the main coils, thereby effectively improving the consistency of the spacing between any two adjacent main coils.

[0010] In one possible design, the main winding and the filler winding have the same structure, and the filler winding is non-conductive.

[0011] According to the above technical solution, the main winding and filler winding are made of the same specification wire to facilitate procurement.

[0012] In one possible design, both the outer surfaces of the main winding and the filler winding are provided with an insulating protective layer.

[0013] The above technical solution aims to improve the insulation effect between the main winding and the filler winding, thereby improving the safety and reliability of the winding.

[0014] In one possible design, the filler winding is made entirely of an insulating material.

[0015] According to the above technical solution, since the filler coil is filled between the main coils, it can form a better insulation effect between the main coils, making the winding safer and more reliable.

[0016] In one possible design, the skeleton includes a bobbin and a limiting part, the main winding and the filler winding are wound around the bobbin, and the limiting part is provided at both ends of the bobbin, the outer diameter of the limiting part being larger than the outer diameter of the bobbin.

[0017] According to the above technical solution, the main winding and filler winding can be restricted between two limiting parts to prevent the main winding and filler winding from slipping off the spool, thereby improving the structural stability of the winding.

[0018] In one possible design, the length of the spool is equal to the sum of a times the main winding and b times the filler winding, where a and b are both integers greater than or equal to 1.

[0019] According to the above technical solution, the main coil and filler coil can just fill the entire spool, and adjacent coils can contact each other, thereby improving the consistency of the spacing between any two adjacent main coils.

[0020] In one possible design, the limiting part is coaxially arranged with the spool, and the difference between the outer diameter of the limiting part and the outer diameter of the spool is greater than or equal to the outer diameter of either the main winding or the filler winding.

[0021] According to the above technical solution, it can be ensured that the limiting part can play a limiting role on the main winding and the filler winding.

[0022] Secondly, this application also provides a transformer, including the windings provided by any of the above-mentioned technical solutions.

[0023] According to the above technical solutions, since the transformer provided in this application includes the windings provided by any of the above technical solutions, it has at least all the beneficial effects of the above windings, which will not be repeated here. Attached Figure Description

[0024] To more clearly illustrate the technical solutions in the embodiments of this application, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0025] Figure 1 This is a schematic diagram of the winding structure in related technologies; Figure 2 This is a schematic diagram of the winding structure provided in one embodiment of this application; Figure 3 This is a schematic diagram of the structure of the winding after the filler winding is hidden, according to one embodiment of this application; Figure 4 This is a schematic diagram of the winding structure provided in another embodiment of this application.

[0026] The details of the reference numerals used in the above figures are as follows: 1. Wire; 2. Winding spool; 10. Skeleton; 11. Bollard; 12. Limiting part; 21. Main coil; 31. Filler coil. Detailed Implementation

[0027] To make the technical problems, technical solutions, and beneficial effects to be solved by this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and are not intended to limit the scope of this application. It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on or indirectly on that other component. When a component is referred to as being "connected to" another component, it can be directly connected to or indirectly connected to that other component.

[0028] It should be understood that the terms "length", "width", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the structure or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0029] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0030] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between the components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances. In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature. In this application, the terms "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of this application. Without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0031] A winding is a group of coils formed by winding wires according to a specific pattern and method. By energizing the wires in the winding, a magnetic field or induced current is generated, thereby realizing the conversion between electrical energy and mechanical energy or between two electrical energy units. A transformer typically has multiple windings, including a primary winding, secondary winding, and auxiliary winding. The winding is one of the core components of the transformer that enables energy transfer and voltage transformation through electromagnetic induction. The consistency of the spacing between adjacent coils is a key factor in ensuring the uniformity of the electric field distribution generated by the winding. Inconsistent spacing between adjacent coils can easily lead to transformer failure.

[0032] like Figure 1 As shown, in related technologies, the winding is mainly achieved by winding the conductor 1 around a winding drum 2. However, since there are no reference graduations on the winding drum 2, it is difficult to ensure consistent spacing between adjacent coils during the winding process. Even if reference graduations are provided on the winding drum 2, the winding accuracy requirements of the production machine are still high; otherwise, it is difficult to guarantee consistent spacing between adjacent coils, resulting in low product yield. Furthermore, during transportation, the coils on the winding drum 2 are prone to displacement, which can still easily lead to poor consistency in the spacing between adjacent coils on the winding.

[0033] To address the technical problems associated with windings in the aforementioned related technologies, this application provides a winding and a transformer. To illustrate the technical solution described in this application, a detailed description is provided below with reference to specific drawings and embodiments.

[0034] First Embodiment like Figure 2 As shown, this embodiment provides a winding, including a bobbin 10, a main winding, and filler windings, wherein: The main winding and filler winding are wound together on the frame 10. The main winding forms multiple main coils 21 on the frame 10, and the filler winding forms filler coils 31 on the frame 10. The filler coils 31 fill between two adjacent main coils 21.

[0035] It should be noted that the main winding and filler winding are wound together on the skeleton 10. Specifically, this means that the main winding and filler winding are set parallel and close together, and then the filler winding and main winding are simultaneously wound around the preset axis L onto the skeleton 10. Thus, as shown... Figure 2 and Figure 3As shown, the gap between any two adjacent main coils 21 is filled with filler coils 31, and the number of filler coils 31 between any two adjacent main coils 21 is equal to the number of filler windings. This ensures that the distance d between any two adjacent main coils 21 is fixedly equal to the sum of the outer diameters of all filler coils 31 between the two adjacent main coils 21, effectively improving the spacing consistency between adjacent main coils 21 in the winding, thereby effectively improving product yield.

[0036] It should be noted that the spacing d between any two adjacent main coils 21 specifically refers to the distance between any two adjacent main coils 21 in the extension direction of the preset axis L.

[0037] In one possible design, the number of filler windings is N, with N filler windings 31 positioned between any two adjacent main windings 21, where N is an integer greater than 0. Specifically, N can be 1, 2, 3, or a larger integer. For example... Figure 2 As shown, when the number of filler windings is 1 (N is 1), one filler winding 31 is placed between any two adjacent main windings 21. Figure 4 As shown, when the number of filler windings is more than 2 (N is greater than or equal to 2), the number of filler coils 31 between any two adjacent main coils 21 is more than 2 (the same as the number of filler windings).

[0038] According to the above setting method, the appropriate number of filler windings can be selected according to actual needs. By selecting different numbers of filler windings and main windings and winding them around the skeleton 10, the number of filler coils 31 between two adjacent main coils 21 can be adjusted, thereby adjusting the distance d between two adjacent main coils 21, so that the distance d between any two adjacent main coils 21 can be close to or even equal to the preset distance.

[0039] It should be noted that when there are multiple filler windings (two or more), during the winding process, the multiple filler windings are placed parallel and closely attached to one side of the main winding, and then the multiple filler windings and the main winding are synchronously wound around the preset axis L onto the skeleton 10.

[0040] In one possible design, such as Figure 3 and Figure 4 As shown, the spacing d between two adjacent main coils 21 is N times the outer diameter of the filler winding. This arrangement ensures that N filler coils 31 can be precisely filled in the gap between two adjacent main coils 21, and that adjacent filler coils 31 or adjacent filler coils 31 are in close contact with the main coils 21, thereby effectively improving the consistency of the spacing d between any two adjacent main coils 21.

[0041] In one possible design, the main winding and the filler winding have the same structure, with the filler winding being non-conductive. It's understood that "the main winding and the filler winding have the same structure" means that they are both made of the same conductor specification. This facilitates procurement.

[0042] During the winding process, multiple wires of the same specification are set parallel and close together. One of the two wires located on both sides is used as the main winding wire. After multiple wires of the same specification are simultaneously wound around the preset axis L on the skeleton 10, the wire used as the main winding wire is energized, while the other wires are insulated and de-energized, so that the other wires are used as filler winding wires to form the filler coil 31.

[0043] It should be noted that wires of the same specification refer to wires with the same structure and material; the colors of wires of the same specification can be the same or different. In some embodiments, the main winding and the filler winding are different colors of the same specification wires. This facilitates procurement and also makes it easy to distinguish between the main winding and the filler winding.

[0044] In one possible design, both the main winding and the filler winding have an insulating protective layer on their outer surfaces. This insulating protective layer improves the insulation between the main winding and the filler winding, thereby enhancing the safety and reliability of the winding.

[0045] In some embodiments, the color of the insulating protective layer on the outside of the main winding is different from the color of the insulating protective layer on the outside of the filler winding. This is to facilitate the distinction between the main winding and the filler winding.

[0046] In one possible design, the filler winding is entirely made of insulating material. For example, the filler winding can be a strip structure made of plastic, rubber, or other insulating materials. This arrangement effectively prevents current from flowing between the filler winding and the main winding, and because the filler coil 31 fills the spaces between the main coils 21, it creates better insulation between the main coils 21, resulting in higher safety and reliability of the winding.

[0047] In one possible design, such as Figures 2 to 4 As shown in any of the accompanying drawings, the bobbin 10 includes a bobbin 11 and a limiting portion 12. The main winding and filler winding are wound around the bobbin 11. Limiting portions 12 are provided at both ends of the bobbin 11, and the outer diameter of the limiting portion 12 is larger than the outer diameter of the bobbin 11. In this embodiment, the axis of the bobbin 11 coincides with a preset axis L. This arrangement confines the main winding and filler winding between the two limiting portions 12, preventing them from slipping off the bobbin 11 and thus improving the structural stability of the winding.

[0048] In one possible design, the length of the spool 11 is equal to the sum of *a* times the main winding and *b* times the filler winding, where *a* and *b* are integers greater than or equal to 1. It should be noted that the length of the spool 11 refers to its length along the extension direction of the preset axis L, and the length of the spool 11 is also the distance between the two limiting parts 12 along the extension direction of the preset axis L.

[0049] In this embodiment, the length of the spool 11 is exactly equal to the sum of an integer multiple of the outer diameter of the main winding and the outer diameter of the filler winding. That is, the distance between the two limiting portions 12 in the extension direction of the preset axis L is exactly equal to the sum of an integer multiple of the outer diameter of the main winding and the outer diameter of the filler winding. It should also be noted that 'a' specifically refers to the number of main coils 21 formed on the spool 11, and 'b' specifically refers to the number of filler coils 31 on the spool 11.

[0050] According to the above configuration, the main coil 21 and the filler coil 31 can just fill the entire spool 11, and adjacent coils (adjacent main coils 21 and filler coils 31 or two adjacent filler coils 31) can contact each other, thereby improving the consistency of the spacing d between any two adjacent main coils 21.

[0051] Optionally, a can be an integer of 1, 2, 3 or greater, and b can be an integer of 1, 2, 3 or greater.

[0052] In some alternative embodiments, a is 10, and when the number of filler windings is one, one filler coil 31 is filled between every two adjacent main coils 21, and b is at least 9. When the number of filler windings is two, two filler coils 31 are filled between every two adjacent main coils 21, and b is at least 18.

[0053] In this embodiment, the outer diameters of the main winding and the filler winding may be equal or unequal. In one possible design, the limiting part 12 is coaxially arranged with the bobbin 11, and the difference between the outer diameter of the limiting part 12 and the outer diameter of the bobbin 11 is greater than or equal to the outer diameter of either the main winding or the filler winding. That is, the difference between the outer diameter of the limiting part 12 and the outer diameter of the bobbin 11 is greater than the outer diameter of both the main winding and the filler winding. This arrangement ensures that the limiting part 12 can effectively limit the main winding and the filler winding.

[0054] Second Embodiment This embodiment provides a transformer, including the windings provided in any of the above embodiments. Since the transformer provided in this application includes the windings provided in any of the above technical solutions, it possesses at least all the beneficial effects of the aforementioned windings, which will not be elaborated further here.

[0055] In the embodiments of this application, the transformer can be a flyback transformer, a forward transformer, or any other transformer with a winding structure.

[0056] The above description is merely an optional embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A winding, characterized by Includes skeleton, main winding, and filler winding, wherein: The main winding and the filler winding are wound together on the skeleton. The main winding forms a plurality of main coils on the skeleton, and the filler winding forms filler coils on the skeleton. The filler coils fill the space between two adjacent main coils.

2. The winding of claim 1, wherein, The number of filler windings is N, and N filler windings are arranged between any two adjacent main windings, where N is an integer greater than 0.

3. The winding of claim 2, wherein, The spacing between two adjacent primary coils is N times the outer diameter of the filler winding.

4. The winding of claim 1, wherein, The main winding and the filler winding have the same structure, and the filler winding is non-conductive.

5. The winding of claim 4, wherein, Both the main winding and the filler winding have an insulating protective layer on their outer surfaces.

6. The winding of claim 1, wherein, The filler winding is made entirely of insulating material.

7. The winding of any one of claims 1 to 6, wherein, The skeleton includes a bobbin and a limiting part. The main winding and the filler winding are wound around the bobbin. The limiting part is provided at both ends of the bobbin. The outer diameter of the limiting part is larger than the outer diameter of the bobbin.

8. The winding of claim 7, wherein, The length of the spool is equal to the sum of a times the main winding and b times the filler winding, where a and b are both integers greater than or equal to 1.

9. The winding of claim 7, wherein, The limiting part is coaxially arranged with the spool, and the difference between the outer diameter of the limiting part and the outer diameter of the spool is greater than or equal to the outer diameter of either the main winding or the filler winding.

10. A transformer, characterized by Including the winding as described in any one of claims 1 to 9.

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