Stator coil of 9.5 Mw air-direct cooling doubly-fed asynchronous wind driven generator
By setting arc-shaped grooves inside and outside the stator coil of the asynchronous wind turbine, the internal wire is limited after winding, and the external arc-shaped groove facilitates winding, thus solving the problem of winding disorder and improving winding efficiency and safety.
Patent Information
- Application Number
- CN202420964782.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-06
- Publication Date
- 2025-01-10
- Estimated Expiration
- 2034-05-06
AI Technical Summary
The stator coils of existing asynchronous wind turbines are prone to disorder during the winding process due to the large number of turns, resulting in reduced winding efficiency.
Arc-shaped grooves are set inside and outside the stator coil body of the asynchronous wind turbine. The internal wire can expand and be limited in the arc-shaped groove after being wound. The arc-shaped groove of the external electronic coil is easy to wind and fit. Red copper and insulating rubber materials are used to ensure the insulation function.
It improves the convenience and efficiency of stator coil winding, and ensures the limiting and safety during the winding process.
Smart Images
Figure CN222339106U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of stator coils of asynchronous wind generators, and specifically relates to a stator coil of a 9.5Mw air-direct-cooled double-fed asynchronous wind generator. Background Art
[0002] A generator is a mechanical device that converts other forms of energy into electrical energy. A generator is usually composed of components such as a stator, a rotor, an end cover and bearings. The stator consists of a stator core, a wire winding, a frame and other structural parts that fix these parts. The stator coil is an insulated conductor embedded in the stator slot and is an element that makes up the winding.
[0003] However, when the stator coil of the existing asynchronous wind turbine generator is wound, the number of turns is large when the winding is conducted to a certain extent, and it is easy to cause it to become disordered under the influence of gravity, resulting in reduced efficiency of the stator coil of the asynchronous wind turbine generator during winding.
[0004] In view of this, the present utility model is proposed. Utility Model Content
[0005] In order to solve the above technical problems, the basic idea of the technical solution adopted by the utility model is
[0006] A 9.5Mw air-cooled doubly-fed asynchronous wind generator stator coil comprises an asynchronous wind generator stator coil body, wherein the outside of the asynchronous wind generator stator coil body is provided with a plurality of arc-shaped grooves for matching the outer wall of the electronic coil in a circumferential distribution, the inner wall of the inner cavity of the asynchronous wind generator stator coil body is provided with a plurality of arc-shaped grooves for matching the inner wire in a circumferential distribution, the inner cavity of the asynchronous wind generator stator coil body is provided with a plurality of built-in wires in a circumferential distribution, and a built-in wiring harness is attached to one side adjacent to each of the built-in wires. When in use, multiple built-in wires are wound around the built-in wiring harness, and when the winding is completed, the air is placed in the stator coil body cavity of the asynchronous wind turbine generator. Since the stator coil body of the asynchronous wind turbine generator is provided with a built-in wire fitting arc groove, the two ends of the built-in wire are located at the built-in wiring harness when it is not wound, which is a relaxed state. At this time, the side of the built-in wire away from the built-in wiring harness can fit in the built-in wire fitting arc groove, so that it can expand and achieve limit position under the effect of relaxation; because the stator coil body of the asynchronous wind turbine generator is provided with a plurality of circumferentially distributed electronic coil outer wall fitting arc grooves, when the stator coil body of the asynchronous wind turbine generator needs to be wound, the stator coil body of the asynchronous wind turbine generator can fit with the electronic coil outer wall fitting arc groove opened on the side wall of the stator coil body of the asynchronous wind turbine generator, so it is more convenient when winding.
[0007] As a preferred embodiment of the utility model, the inside of the stator coil body of the asynchronous wind generator is made of red copper material, and the outside of the stator coil body of the asynchronous wind generator is made of insulating rubber material. The material of the stator coil body of the asynchronous wind generator is determined.
[0008] As a preferred embodiment of the utility model, the stator coil body of the asynchronous wind generator and the arc-shaped grooves of the outer wall of the electronic coil fit each other. Because the stator coil body of the asynchronous wind generator is provided with a plurality of arc-shaped grooves of the outer wall of the electronic coil that are arranged in a circumferential distribution, when the stator coil body of the asynchronous wind generator needs to be wound, the stator coil body of the asynchronous wind generator can fit each other with the arc-shaped grooves of the outer wall of the electronic coil that are provided on the side wall of the stator coil body of the asynchronous wind generator, so it is more convenient when winding.
[0009] As a preferred embodiment of the utility model, the built-in wire and the built-in wire fitting arc groove are mutually wound in the inner cavity of the asynchronous wind generator stator coil body, and the built-in wire and the built-in wire fitting arc groove fit each other at the port of the asynchronous wind generator stator coil body. It is ensured that when the two ends of the built-in wire are located in the built-in wire harness and are not wound, they are in a relaxed state. At this time, the side of the built-in wire away from the built-in wire harness can fit in the built-in wire fitting arc groove, so that it can expand under the effect of relaxation to achieve limit.
[0010] As a preferred embodiment of the utility model, the stator coil body coil of the asynchronous wind generator has an insulation function.
[0011] As a preferred embodiment of the utility model, the arc-shaped grooves on the outer wall of each electronic coil are matched with the stator winding.
[0012] As a preferred embodiment of the present invention, each of the built-in wires and built-in wiring harnesses is composed of insulated copper wires, which have an insulating function.
[0013] Compared with the prior art, the utility model has the following beneficial effects:
[0014] The utility model, when in use, winds a plurality of built-in wires around a built-in wire harness, and when the winding is completed, places the wires in the stator coil body cavity of the asynchronous wind turbine generator. Since a built-in wire fitting arc groove is provided in the stator coil body of the asynchronous wind turbine generator, the two ends of the built-in wire are located in a relaxed state when the built-in wire harness is not wound. At this time, the side of the built-in wire away from the built-in wire harness can fit in the built-in wire fitting arc groove, so that the built-in wire can expand under the effect of relaxation to achieve position limiting.
[0015] In the utility model, since a plurality of arc-shaped grooves for matching the outer wall of the electronic coil are arranged in a circumferential distribution on the outside of the stator coil body of the asynchronous wind generator, when the stator coil body of the asynchronous wind generator needs to be wound, the stator coil body of the asynchronous wind generator can be matched with the arc-shaped grooves for matching the outer wall of the electronic coil opened on the side wall of the stator coil body of the asynchronous wind generator, so it is more convenient to wind.
[0016] The specific implementation of the utility model is further described in detail below with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] In the attached picture:
[0018] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;
[0019] Figure 2 It is a schematic diagram of the local structure of the utility model;
[0020] Figure 3 This is a schematic diagram of the partial inner cavity structure of the utility model;
[0021] In the figure: 1. stator coil body of asynchronous wind turbine; 2. outer wall of electronic coil fits into arc groove; 3. built-in wire; 4. built-in wiring harness; 5. built-in wire fits into arc groove. DETAILED DESCRIPTION
[0022] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. The following embodiments are used to illustrate the utility model.
[0023] like Figures 1 to 3As shown, a 9.5Mw air-cooled doubly-fed asynchronous wind generator stator coil comprises an asynchronous wind generator stator coil body 1, a plurality of arc-shaped grooves 2 for fitting the outer wall of the electronic coil arranged in a circumferential distribution are provided on the outside of the asynchronous wind generator stator coil body 1, a plurality of arc-shaped grooves 5 for fitting the inner wall of the inner cavity of the asynchronous wind generator stator coil body 1 are provided with a plurality of arc-shaped grooves 5 for fitting the inner wall of the inner cavity of the asynchronous wind generator stator coil body 1, a plurality of arc-shaped grooves 3 for fitting the inner cavity of the asynchronous wind generator stator coil body 1 are provided with a plurality of arc-shaped grooves 3 for fitting the inner cavity of the asynchronous wind generator stator coil body 1, and a built-in wiring harness 4 is attached to one side adjacent to each built-in wiring harness 3. When in use, multiple built-in wires 3 are wound around the built-in wiring harness 4, and when the winding is completed, the air is placed in the cavity of the stator coil body 1 of the asynchronous wind turbine generator. Since the stator coil body 1 of the asynchronous wind turbine generator is provided with a built-in wire fitting arc groove 5, the two ends of the built-in wire 3 are located at the built-in wiring harness 4 when it is not wound, which is in a relaxed state. At this time, the side of the built-in wire 3 away from the built-in wiring harness 4 can fit in the built-in wire fitting arc groove 5, so that it can expand and achieve limit position under the effect of relaxation; because the stator coil body 1 of the asynchronous wind turbine generator is provided with a plurality of electronic coil outer wall fitting arc grooves 2 arranged in a circumferential distribution on the outside, when the stator coil body 1 of the asynchronous wind turbine generator needs to be wound, the stator coil body 1 of the asynchronous wind turbine generator can fit with the electronic coil outer wall fitting arc groove 2 opened on the side wall of the stator coil body 1 of the asynchronous wind turbine generator, so it is more convenient when winding.
[0024] In a specific implementation, the inside of the asynchronous wind generator stator coil body 1 is made of red copper material, and the outside of the asynchronous wind generator stator coil body 1 is made of insulating rubber material. In this setting, the material of the asynchronous wind generator stator coil body 1 is determined.
[0025] Furthermore, the stator coil body 1 of the asynchronous wind turbine generator and the arc groove 2 of the outer wall of the electronic coil fit each other. In this configuration, because the stator coil body 1 of the asynchronous wind turbine generator is provided with a plurality of arc grooves 2 of the outer wall of the electronic coil that are arranged in a circumferential distribution, when the stator coil body 1 of the asynchronous wind turbine generator needs to be wound, the stator coil body 1 of the asynchronous wind turbine generator can fit each other with the arc groove 2 of the outer wall of the electronic coil that is provided on the side wall of the stator coil body 1 of the asynchronous wind turbine generator, so it is more convenient when winding.
[0026] Furthermore, the built-in wire 3 and the built-in wire fitting arc groove 5 are mutually wound in the inner cavity of the asynchronous wind turbine stator coil body 1, and the built-in wire 3 and the built-in wire fitting arc groove 5 are mutually fitted at the port of the asynchronous wind turbine stator coil body 1. In this configuration, it is ensured that when the two ends of the built-in wire 3 are located at the built-in wire harness 4 and are not wound, they are in a relaxed state. At this time, the side of the built-in wire 3 away from the built-in wire harness 4 can fit in the built-in wire fitting arc groove 5, so that it can expand under the effect of relaxation to achieve limit.
[0027] Furthermore, the stator coil body 1 of the asynchronous wind turbine generator has an insulating function; the arc groove 2 of the outer wall of each electronic coil is in line with the stator winding; each built-in wire 3 and built-in wiring harness 4 are composed of insulated copper wires, which have an insulating function. In this configuration, it is ensured that the stator coil body 1 of the asynchronous wind turbine generator can rotate around the stator winding, and at the same time, the safety of the stator coil body 1, the built-in wire and the built-in wiring harness 5 of the asynchronous wind turbine generator during use can be ensured.
[0028] The implementation principle of the 9.5Mw air-cooled double-fed asynchronous wind generator stator coil of this embodiment is as follows: first, when in use, multiple built-in wires 3 are wound around the built-in wiring harness 4, and when the winding is completed, the air is placed in the cavity of the asynchronous wind generator stator coil body 1. Since the built-in wire fitting arc groove 5 is provided in the stator coil body 1 of the asynchronous wind generator, the two ends of the built-in wire 3 are located when the built-in wiring harness 4 is not wound, which is in a relaxed state. At this time, the side of the built-in wire 3 away from the built-in wiring harness 4 can fit in the built-in wire fitting arc groove 5, so that it can expand and achieve limit position under the effect of relaxation. Because the outside of the asynchronous wind generator stator coil body 1 is provided with multiple electronic coil outer wall fitting arc grooves 2 arranged in a circumferential distribution, when the asynchronous wind generator stator coil body 1 needs to be wound, the asynchronous wind generator stator coil body 1 can fit with the electronic coil outer wall fitting arc groove 2 provided on the side wall of the asynchronous wind generator stator coil body 1, so it is more convenient when winding.
Claims
1. 9.5Mw air-cooled double-fed asynchronous wind generator stator coil, comprising an asynchronous wind generator stator coil body (1), characterized in that: The stator coil body (1) of the asynchronous wind generator is provided with a plurality of arc-shaped grooves (2) arranged in a circumferential distribution on the outer wall of the electronic coil, the inner wall of the inner cavity of the stator coil body (1) of the asynchronous wind generator is provided with a plurality of arc-shaped grooves (5) arranged in a circumferential distribution on the inner wall of the inner cavity of the stator coil body (1) of the asynchronous wind generator, and the inner cavity of the stator coil body (1) of the asynchronous wind generator is provided with a plurality of inner conductors (3) arranged in a circumferential distribution, and a built-in wiring harness (4) is attached to one side adjacent to each of the inner conductors (3).
2. The 9.5Mw air-cooled double-fed asynchronous wind generator stator coil according to claim 1 is characterized in that: The interior of the asynchronous wind generator stator coil body (1) is made of red copper material, and the exterior of the asynchronous wind generator stator coil body (1) is made of insulating rubber material.
3. The 9.5Mw air-cooled double-fed asynchronous wind generator stator coil according to claim 2 is characterized in that: The stator coil body (1) of the asynchronous wind generator and the outer wall of the electronic coil fit in the arc-shaped groove (2) with each other.
4. The 9.5Mw air-cooled double-fed asynchronous wind generator stator coil according to claim 1 is characterized in that: The built-in conductor (3) and the built-in conductor fitting arc groove (5) are intertwined in the inner cavity of the asynchronous wind generator stator coil body (1), and the built-in conductor (3) and the built-in conductor fitting arc groove (5) fit in with each other at the port of the asynchronous wind generator stator coil body (1).
5. The 9.5Mw air-cooled double-fed asynchronous wind generator stator coil according to claim 1 is characterized in that: The stator coil body (1) of the asynchronous wind generator has an insulation function.
6. The 9.5Mw air-cooled double-fed asynchronous wind generator stator coil according to claim 1 is characterized in that: The arc-shaped groove (2) on the outer wall of each electronic coil is matched with the stator winding.
7. The 9.5Mw air-cooled double-fed asynchronous wind generator stator coil according to claim 1 is characterized in that: Each of the built-in wires (3) and built-in wiring harness (4) is composed of insulated copper wires, which have an insulating function.