Magnet exciting coil winding unit

Abstract

The utility model relates to the field of generators, in particular to a magnet exciting coil winding unit, which comprises two side iron cores and a magnet exciting coil, the two side iron cores are mutually spaced left and right, the magnet exciting coil is annularly wound on the two side iron cores, a middle iron core is further arranged between the two side iron cores, and the magnet exciting coil is wound on the middle iron core. The number of the middle iron cores is at least one, the middle iron cores are inserted into the excitation coils and support the excitation coils, the front ends and the rear ends of the edge iron cores are provided with blocking edges used for blocking the excitation coils, the blocking edges are located on the left sides and the right sides of the edge iron cores, and the blocking edges protrude outwards in the direction away from the edge iron cores. The edge iron core is composed of a plurality of sheets which are stacked up and down, the edge iron core is made of silicon steel, the excitation coil winding unit effectively solves the problems that in the prior art, magnetic field distribution is uneven, stability is poor, efficiency is low and the like, and the stability and durability of the excitation coil can be improved when a generator is in a high-temperature and high-vibration complex working environment.

Description

Technical Field

[0001] The utility model relates to the field of generators, and particularly to an exciting coil winding unit. Background Art

[0002] In the field of power transmission and transformation, exciting coils, as key components, are widely used in equipment such as generators, transformers, and electromagnets, and play a crucial role in the performance and working efficiency of the equipment. With the progress of technology and the development of industry, higher requirements are put forward for the structure and performance of exciting coils to improve the overall efficiency and stability of the equipment.

[0003] The design of traditional exciting coils mostly adopts single-layer or double-layer winding methods. Although it can meet the basic functional requirements, there are limitations in increasing the magnetic field strength, optimizing the magnetic field distribution, and improving the equipment efficiency, resulting in affecting the performance and service life of the equipment. At the same time, the traditional exciting coil structure has poor stability and durability in the face of complex working environments, such as high temperature and high vibration conditions, and is prone to failures, which need to be improved. Content of the Utility Model

[0004] The purpose of the utility model is to provide an exciting coil winding unit with uniform magnetic field distribution, high stability and durability for the above problems.

[0005] To achieve the above purpose, the utility model discloses an exciting coil winding unit, which includes side cores and an exciting coil. Its structural features are: there are two side cores, and the two side cores are spaced apart from each other left and right. The exciting coil is wound around the two side cores in a ring shape. There is also an intermediate core between the two side cores, and at least one intermediate core is provided. The intermediate core is inserted into the exciting coil and supports the exciting coil. The intermediate core can not only enhance the strength and stability of the magnetic field, but also reduce the vibration and displacement that may occur during the operation of the exciting coil through physical support, improving the stability and reliability of the entire exciting coil winding unit.

[0006] Blocking edges for blocking the exciting coil are provided at the front and rear ends of the side cores. The blocking edges are located on the left and right sides of the side cores. The blocking edges can effectively prevent the exciting coil from slipping or shifting during winding or operation, ensuring the accuracy and stability of the coil position, and thus guaranteeing the stability and efficiency of magnetic field generation.

[0007] The blocking edges protrude outward in a direction away from the side cores. The outwardly protruding blocking edges increase the contact area with the exciting coil, further enhancing the blocking effect, and also help to guide the direction of the magnetic field, improving the magnetic field utilization efficiency.

[0008] The end of the retaining edge has an oblique angle transition with the side surface of the side core. The design of the oblique angle transition reduces the stress concentration points, improves the strength of the connection between the retaining edge and the side core, prevents damage caused by long-term operation or external forces, and extends the service life of the equipment.

[0009] The side core is composed of multiple sheets stacked up and down. The stacking of the sheets can reduce eddy current losses, improve the magnetic permeability and thermal stability of the core. At the same time, this structure is also convenient for processing and manufacturing, reducing the production cost.

[0010] The material of the side core is silicon steel. Silicon steel has excellent magnetic conductivity and low resistivity. Using silicon steel as the material of the side core can significantly improve the electromagnetic performance of the exciting coil winding unit.

[0011] The exciting coil on the adjacent winding unit of the first winding unit bypasses the side core of the first winding unit, and the exciting coil on the adjacent winding unit is wound around the middle core of the first winding unit. The stator has multiple winding units, which are arranged in a ring shape and the cores are interconnected through the exciting coils. That is, the middle core of the current winding unit serves as the side core of the previous and the next winding units, which can achieve the tight connection and magnetic field sharing between multiple winding units, improve the magnetic field intensity and energy conversion efficiency of the whole equipment. At the same time, it also simplifies the equipment structure and reduces the manufacturing cost.

[0012] The winding unit is provided with multiple exciting coils. The multiple exciting coils are spaced from each other, and the exciting coils on the adjacent two winding units are arranged in an interlaced manner, which helps to improve and optimize the magnetic field intensity and make the magnetic field distribution more uniform.

[0013] The structure of the middle core is the same as that of the side core, which ensures the consistency of the middle core and the side core in the magnetic field, improves the performance stability of the whole equipment, and is convenient for the manufacturing and processing of the core, reducing the production complexity and cost.

[0014] In summary, the beneficial effects of the present utility model are as follows: Through innovation and improvement in aspects such as the winding method, material selection, and structural design of the exciting coil winding unit, it effectively solves the problems of uneven magnetic field distribution, poor stability, and low efficiency existing in the prior art. It helps to improve the stability and durability of the exciting coil when the generator is in a complex working environment of high temperature and high vibration. Description of the Drawings

[0015] Figure 1 is the structural schematic diagram of the present utility model;

[0016] Figure 2 is the structural schematic diagram of the winding unit.

[0017] In the figure: edge iron core 1, exciting coil 2, middle iron core 3, retaining edge 4. Specific embodiments

[0018] The following will, with reference to the accompanying drawings and embodiments, give a more detailed description of the specific embodiments of the present utility model. The following embodiments are used to illustrate the present utility model, but are not intended to limit the scope of the present utility model.

[0019] In the description of the present application, it should be understood that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as limiting the present application.

[0020] The terms "first" and "second" are only used for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present application, unless otherwise specified, the meaning of "plurality" is two or more.

[0021] In the description of the present application, it should be noted that unless otherwise clearly specified and defined, the terms "installed", "connected" and "connected" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection or an integral connection; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific circumstances.

[0022] The following is a description of the preferred embodiments of the present utility model with reference to the accompanying drawings.

[0023] An exciting coil 2 winding unit includes an edge iron core 1 and an exciting coil 2. There are two edge iron cores 1, and the two edge iron cores 1 are spaced apart from each other left and right. The exciting coil 2 is wound around the two edge iron cores 1 in a ring shape. There is also a middle iron core 3 between the two edge iron cores 1, and there is at least one middle iron core 3. The middle iron core 3 is inserted into the exciting coil 2 and supports the exciting coil 2. The middle iron core 3 can not only enhance the intensity and stability of the magnetic field, but also reduce the vibration and displacement that may occur during the operation of the exciting coil 2 through physical support, improving the stability and reliability of the entire exciting coil 2 winding unit. Refer to the attached Figure 1, at the front and rear ends of the side core 1, there are retaining edges 4 for blocking the exciting coil 2. The retaining edges 4 are located on the left and right sides of the side core 1. The retaining edges 4 can effectively prevent the exciting coil 2 from slipping or shifting during winding or operation, ensuring the accuracy and stability of the coil position, thereby guaranteeing the stability and efficiency of magnetic field generation.

[0024] Refer to the appendix Figure 1 , the retaining edge 4 protrudes outward in a direction away from the side core 1. The outwardly protruding retaining edge 4 increases the contact area with the exciting coil 2, further enhancing the blocking effect. At the same time, it also helps to guide the direction of the magnetic field and improve the magnetic field utilization efficiency. The end of the retaining edge 4 has an oblique angle transition with the side of the side core 1. The design of the oblique angle transition reduces the stress concentration points, improves the strength of the connection between the retaining edge 4 and the side core 1, prevents damage caused by long-term operation or external forces, and extends the service life of the equipment.

[0025] Refer to the appendix Figure 2 , the side core 1 is composed of multiple sheets stacked up and down. Stacking the sheets can reduce eddy current losses, improve the magnetic permeability and thermal stability of the core. At the same time, this structure is also convenient for processing and manufacturing, reducing the production cost. The material of the side core 1 is silicon steel. Silicon steel has excellent magnetic conductivity and low resistivity. Using silicon steel as the material of the side core 1 can significantly improve the electromagnetic performance of the winding unit of the exciting coil 2.

[0026] Refer to the appendix Figure 1 , the exciting coil 2 on the adjacent winding unit of the first winding unit bypasses the side core 1 of the first winding unit, and the exciting coil 2 on the adjacent winding unit is wound around the middle core 3 of the first winding unit. The stator has multiple winding units, and the multiple winding units are arranged in a ring shape and are interconnected by the exciting coil 2. That is, the middle core 3 on the current winding unit serves as the side core 1 of the previous and next winding units, which can achieve the tight connection and magnetic field sharing between multiple winding units, improving the magnetic field strength and energy conversion efficiency of the entire equipment. At the same time, it also simplifies the equipment structure and reduces the manufacturing cost. The winding unit is provided with multiple exciting coils 2, and the multiple exciting coils 2 are spaced apart from each other. The exciting coils 2 on adjacent two winding units are arranged in an interlaced manner, which helps to improve and optimize the magnetic field strength and make the magnetic field distribution more uniform. The structure of the middle core 3 is the same as that of the side core 1, ensuring the consistency of the middle core 3 and the side core 1 in the magnetic field, improving the performance stability of the overall equipment, and at the same time facilitating the manufacture and processing of the core, reducing the production complexity and cost.

[0027] The above are only the preferred embodiments of the present utility model. It should be noted that for those of ordinary skill in the art, without departing from the technical principle of the present utility model, several improvements and substitutions can be made, and these improvements and substitutions should also be regarded as the protection scope of the present utility model.

Claims

1. An excitation coil winding unit, comprising an edge iron core (1) and an excitation coil (2), characterized in that: Two side iron cores (1) are provided, and the two side iron cores (1) are spaced from each other on the left and right. The excitation coil (2) is wound around the two side iron cores (1) in a ring shape. An intermediate iron core (3) is also provided between the two side iron cores (1). At least one intermediate iron core (3) is provided, and the intermediate iron core (3) is inserted into the excitation coil (2) and supports the excitation coil (2).

2. The field coil winding unit according to claim 1, characterized in that: The front and rear ends of the edge iron core (1) are provided with blocking edges (4) for blocking the excitation coil (2).

3. The field coil winding unit according to claim 2, characterized in that: The retaining edge (4) is located on the left and right sides of the edge iron core (1).

4. The field coil winding unit according to claim 3, characterized in that: The retaining edge (4) protrudes outward in a direction away from the edge iron core (1).

5. The field coil winding unit according to claim 4, characterized in that: The end of the retaining edge (4) transitions with the side surface of the edge iron core (1) at an oblique angle.

6. The field coil winding unit according to claim 1, characterized in that: The edge iron core (1) is composed of a plurality of sheets stacked one above the other.

7. The field coil winding unit according to claim 6, characterized in that: The material of the edge iron core (1) is silicon steel.

8. The field coil winding unit according to claim 1, characterized in that: The excitation coil (2) on the adjacent winding unit of the first winding unit is wound around the side core (1) of the first winding unit, and the excitation coil (2) on the adjacent winding unit is wound around the middle core (3) of the first winding unit.

9. The field coil winding unit according to claim 1, characterized in that: The winding unit is provided with a plurality of excitation coils (2), and the plurality of excitation coils (2) are spaced apart from each other.

10. The field coil winding unit according to any one of claims 1 to 9, characterized in that: The intermediate iron core (3) has the same structure as the side iron core (1).

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