Axial dual-engine direct-drive permanent magnet wind turbine

Abstract

The present invention discloses an axial dual-engine direct-drive permanent magnet wind turbine generator, which belongs to the field of wind turbine generators. The generator includes a left outer casing, a right outer casing, an inner casing, a left end cover, a middle end cover, a right end cover, a rotor body, a permanent magnet 1, a winding stator core 1, a winding stator core 2, a permanent magnet 2, a rotor core, a rotating shaft, a bearing 1, a bearing 2, a bearing 3, a bearing 4, a brake 1, a group of blades, a brake 2, and another group of blades; the permanent magnet 1 is fixed on the inner surface of the rotor body, the winding stator core 1 is fixed on the outer wall of the inner casing, and mutually inductively forms a set of closed loops with the permanent magnet 1, forming a generator; the winding stator core 2 is fixed on the inner wall of the right outer casing, and mutually inductively forms a set of closed loops with the permanent magnet 2, forming another generator.

Description

Technical Field

[0001] The invention relates to a permanent magnet synchronous wind generator, in particular to an axial dual-engine direct-drive permanent magnet wind generator. Background Art

[0002] Energy and environmental issues have become the main problems facing the sustainable development of global industry, and have increasingly attracted widespread attention from society and sought positive countermeasures. Wind energy is a renewable, pollution-free green energy source that is inexhaustible and abundant. With the increasing social recognition of clean energy and the continuous advancement of science and technology, the world's wind power industry has developed rapidly, and the power of a single machine has continued to increase. However, the method of increasing the power of a single machine cannot effectively solve the problem of wind power cost and efficiency in low wind speed areas. Relying on the method of lengthening the blades to adapt to low wind speeds will inevitably increase the length of the blades and increase the size of the generator, causing a significant increase in costs. The present invention uses a dual-port, dual-group blade permanent magnet direct-drive wind turbine with a special structure, which can effectively improve the shortcomings of traditional single-machine, single-group blade wind turbines. Contents of the invention

[0003] In order to increase the unit capacity of a wind turbine without increasing the blade length, the present invention provides an axial dual-engine direct-drive permanent magnet wind turbine. The technical solution is as follows:

[0004] An axial dual-engine direct-drive permanent magnet wind turbine generator, the generator comprises a left outer casing, a right outer casing, an inner casing, a left end cover, a middle end cover, a right end cover, a rotor body, a permanent magnet 1, a stator core 1 with windings, a stator core 2 with windings, a permanent magnet 2, a rotor core, a rotating shaft, a bearing 1, a bearing 2, a bearing 3, a bearing 4, a brake 1, a group of blades, a brake 2, and another group of blades; the left outer casing is connected and fixed to the left side of the left end cover and the middle end cover, the right outer casing is connected and fixed to the right side of the right end cover and the middle end cover, the middle end cover is connected and fixed to the inner casing on the left side, the middle end cover has two bearing chambers, a left bearing chamber and a right bearing chamber, the outer rings of the bearing 1 and the bearing 2 are respectively fixed in the bearing chamber of the left end cover and the bearing chamber of the left side of the middle end cover, the inner rings of the bearing 1 and the bearing 2 are respectively fixed on the rotor body, and the inner surface of the rotor body is fixed with the Permanent magnet one, the winding stator core one is fixed on the outer wall of the inner casing, and is mutually induced with the permanent magnet one to form a closed loop, becoming a generator; the outer rings of the bearing three and the bearing four are respectively fixed in the bearing chamber of the right end cover and the right bearing chamber of the middle end cover, the inner rings of the bearing three and the bearing four are respectively fixed on the rotating shaft, the rotor core is sleeved on the rotating shaft, the permanent magnet two is fixed on the surface of the rotor core, the winding stator core two is fixed on the inner wall of the right outer casing, and is mutually induced with the permanent magnet two to form a closed loop, becoming another generator; the brake one is fixedly connected to the left end cover, and the group of blades is fixed to the leftward extending part of the rotor body one, located on the left side of the brake one; the brake two is fixedly connected to the right end cover, and the other group of blades is fixed to the rightward extending part of the rotating shaft, located on the right side of the brake two. BRIEF DESCRIPTION OF THE DRAWINGS

[0005] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0006] Figure 1 It is a cross-sectional view of an axial dual-engine direct-drive permanent magnet wind turbine provided by the present invention;

[0007] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0008] 101 left outer casing, 102 right outer casing, 103 inner casing, 104 left end cover,

[0009] 105 middle end cover, 106 right end cover, 107 rotor body, 108 permanent magnet 1,

[0010] 109 has a winding stator core 1, 110 has a winding stator core 2, 111 has a permanent magnet 2,

[0011] 112 rotor core, 113 shaft, 114 bearing 1, 115 bearing 2, 116 bearing 3,

[0012] 117 bearing four, 118 brake one, 119 one set of blades, 120 brake two, 121 another set of blades. DETAILED DESCRIPTION

[0013] To make the objectives, technical solutions and advantages of the present invention more clear, the embodiments of the present invention will be further described in detail below with reference to the accompanying drawings.

[0014] like Figure 1As shown, the present invention provides an axial dual-engine direct-drive permanent magnet wind turbine generator, the generator includes a left outer casing 101, a right outer casing 102, an inner casing 103, a left end cover 104, a middle end cover 105, a right end cover 106, a rotor body 107, a permanent magnet 108, a winding stator core 109, a winding stator core 2 110, a permanent magnet 2 111, a rotor core 112, a rotating shaft 113, a bearing 114, a bearing 2 115, a bearing 3 116, a bearing 4 117, a brake 118, a group of blades 119, a brake 2 120, and another group of blades 121; the The left outer housing 101 is connected and fixed to the left end cover 104 and the middle end cover 105 on the left side, the right outer housing 102 is connected and fixed to the right end cover 106 and the middle end cover 105 on the right side, the middle end cover 105 is connected and fixed to the inner housing 103 on the left side, the middle end cover 105 has two bearing chambers, a left bearing chamber a and a right bearing chamber b, the outer rings of the bearing 1 114 and the bearing 2 115 are respectively fixed in the bearing chamber of the left end cover 104 and the left bearing chamber a of the middle end cover 105, the inner rings of the bearing 1 114 and the bearing 2 115 are respectively fixed in the bearing chamber of the left end cover 104 and the left bearing chamber a of the middle end cover 105, The rotor body 107 is provided with a permanent magnet 108 fixed on the inner surface of the rotor body 107, and the stator core 109 with windings is fixed on the outer wall of the inner housing 103, and forms a closed loop with the permanent magnet 108 to form a generator; the outer rings of the bearing 3 116 and the bearing 4 117 are respectively fixed in the bearing chamber of the right end cover 106 and the right bearing chamber b of the middle end cover 105, and the inner rings of the bearing 3 116 and the bearing 4 117 are respectively fixed on the rotating shaft 113, and the rotor core 112 is sleeved on the rotating shaft 113, and the permanent magnet 2 1 11 is fixed on the surface of the rotor core 112, the second stator core 110 with windings is fixed on the inner wall of the right outer casing 102, and forms a closed loop with the second permanent magnet 111 through mutual induction, becoming another generator; the first brake 118 is fixedly connected to the left end cover 104, and the group of blades 119 is fixed to the leftward extending portion of the rotor body 107, and is located on the left side of the brake 118; the second brake 120 is fixedly connected to the right end cover 106, and the other group of blades 121 is fixed to the rightward extending portion of the rotating shaft 113, and is located on the right side of the second brake 120.

[0015] The serial numbers of the above embodiments of the present invention are only for description and do not represent the advantages or disadvantages of the embodiments.

[0016] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. An axial dual-engine direct-drive permanent magnet wind turbine generator, It is characterized in that The generator comprises a left outer casing, a right outer casing, an inner casing, a left end cover, a middle end cover, a right end cover, a rotor body, a permanent magnet 1, a stator core 1 with windings, a stator core 2 with windings, a permanent magnet 2, a rotor core, a rotating shaft, a bearing 1, a bearing 2, a bearing 3, a bearing 4, a brake 1, a group of blades, a brake 2, and another group of blades; the left outer casing is connected and fixed to the left side of the left end cover and the middle end cover, the right outer casing is connected and fixed to the right side of the right end cover and the middle end cover, the middle end cover is connected and fixed to the inner casing on the left side, the middle end cover has two bearing chambers, a left bearing chamber and a right bearing chamber, the outer rings of the bearing 1 and the bearing 2 are respectively fixed in the bearing chamber of the left end cover and the bearing chamber of the left side of the middle end cover, the inner rings of the bearing 1 and the bearing 2 are respectively fixed on the rotor body, the permanent magnet 1 is fixed on the inner surface of the rotor body, the stator core 1 with windings is fixed The outer rings of the bearing three and the bearing four are respectively fixed in the bearing chamber of the right end cover and the right bearing chamber of the middle end cover, the inner rings of the bearing three and the bearing four are respectively fixed on the rotating shaft, the rotor core is sleeved on the rotating shaft, the permanent magnet two is fixed on the surface of the rotor core, the stator core two with windings is fixed on the inner wall of the right outer casing, and is mutually induced with the permanent magnet two to form a closed loop, becoming another generator; the brake one is fixedly connected to the left end cover, and the group of blades is fixed to the left protruding part of the rotor body, located on the left side of the brake one; the brake two is fixedly connected to the right end cover, and the other group of blades is fixed to the right protruding part of the rotating shaft, located on the right side of the brake two; the two generators are concentric and non-coaxial and separated and opposed.

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