Novel ducted wind power generation host

Abstract

The utility model relates to a novel ducted wind power generation host, which is characterized in that a front lip section flow guide body, a rear lip section flow guide body, a stator iron core, a winding coil, a front bracket and a rear bracket are respectively and fixedly arranged in a ducted wind power generation cabin shell, and an integrated inner rotor impeller is movably arranged corresponding to the stator iron core and the winding coil; air flow is guided into a duct of a ducted fan cabin shell through wind energy, and the front lip section flow guide body and the front fairing converge / guide the air flow to the integrated inner rotor impeller to push the blades to rotate, generate electricity and do work; a ducted fan cabin body shell and an inner rotor generator shell are combined into one, so that the material consumption and the manufacturing cost of the whole machine are reduced, an integrated inner rotor impeller with continuous spiral blades is adopted, so that the weight of a moving part is lighter, the wind energy utilization rate is higher, the integrated inner rotor impeller can better adapt to a low-speed wind environment, and the power generation capacity under the weak wind condition is improved; maintenance is convenient, later operation cost can be reduced, and the system is suitable for more application occasions and beneficial to environmental protection.

Description

Technical Field

[0001] The utility model belongs to the technical field of wind power generation devices and relates to a new type of ducted wind power generation main engine. Background Art

[0002] Wind power generation is a way of generating electricity by converting wind power into electrical energy through rotating generators. Wind power is a widely distributed, free, clean, and renewable energy source that has the advantages of maintaining environmental balance and improving energy efficiency. The working principle of a conventional ducted wind turbine is to use wind energy to guide the airflow into the duct, and then convert the airflow into mechanical energy through a rotating impeller (fan), and finally convert the mechanical energy into electrical energy; specifically, ① a small-power ducted wind turbine has a single-blade impeller installed on the main shaft of the generator fixed in the duct along the main axis. The impeller formed by the fixed connection between the root of the single-blade and the hub has a small windward area and limited wind bearing capacity, and the shape and volume occupied by the generator will affect the aerodynamic layout of the duct, resulting in low wind energy utilization, so it is impossible to achieve high-power ducted wind power generation; ② For medium and large power ducted wind turbine generators, a power transmission device is fixedly added inside the duct along the main axis, and a multi-layer blade impeller is installed on the input shaft of the power transmission device. The windward area of ​​the impeller formed by the fixed connection between the blade root of the multi-layer blade and the hub is increased, that is, the wind bearing capacity is increased. The power transmission device outputs the mechanical energy converted from wind energy to the external generator installed outside the duct cabin to drive the medium and large power generator to generate electricity. The addition of a power transmission device will increase the material consumption and manufacturing cost, and the multi-layer blade impeller will block the maintenance operation surface of the power transmission device, making the maintenance personnel's operation inconvenient and time-consuming.

[0003] In summary, in the prior art, small-power ducted wind power generators use a single-layer blade impeller direct connection method to drive the generator, and medium-to-large-power ducted wind power generators use an additional power transmission device and a multi-layer blade impeller drives the generator through an external connection method of the power transmission device to achieve power generation by the wind power generator. The direct connection method drives the small-power ducted wind power generator, which has a low wind energy utilization rate and a small power generation capacity, while the external connection method drives the medium-to-large-power ducted wind power generator, which has an increased material consumption, increased manufacturing costs, and inconvenient maintenance. Therefore, how to solve the problem that the existing technology of small-power ducted wind power generation host adopts a single-layer blade impeller to drive the generator through a direct connection method and the medium and large power ducted wind power generation host adopts an additional power transmission device and drives the generator through an external connection method of the power transmission device by a multi-layer blade impeller to realize the wind power generation host. The direct connection method drives the small-power ducted wind power generation host with low wind energy utilization rate and small power generation power, and the external connection method drives the medium and large power ducted wind power generation host with increased material consumption, increased manufacturing cost and inconvenient maintenance. These are technical problems that technical personnel in this field urgently need to solve. Summary of the invention

[0004] In order to solve the above technical problems, the utility model provides a new type of ducted wind power generation main engine.

[0005] To achieve the above purpose, the utility model provides the following solutions:

[0006] Specifically, a new type of ducted wind turbine generator includes a ducted wind turbine nacelle shell, a front lip section guide body, a rear lip section guide body, a front bracket, a rear bracket, a stator core and winding coils, an inner hub, blades, an outer cylinder, permanent magnets, a rotating shaft, bearings, connecting cables, a front fairing, a rear fairing, and a control unit.

[0007] More specifically, when viewed from the front, top and left, the inner wall of the ducted fan cabin shell is a circular tube that runs through from front to back; a front lip section guide body is embedded and fixedly arranged at a corresponding position of the front section of the inner wall of the ducted fan cabin shell, and a rear lip section guide body is embedded and fixedly arranged at a corresponding position of the rear section of the inner wall of the ducted fan cabin shell; a front bracket is fixedly arranged at a corresponding position of the front lip section guide body, and a rear bracket is fixedly arranged at a corresponding position of the rear lip section guide body; bearings are fixedly arranged at the center positions of the front bracket and the rear bracket, and the bearing inner holes of the front bracket / rear bracket are coaxial. The outer ring of the stator core and the winding coil is fixedly connected to the corresponding position of the inner ring wall of the ducted fan nacelle shell between the rear side of the front lip section guide body and the front side of the rear lip section guide body; the roots of the blades are fixedly connected to the corresponding positions of the outer ring of the inner hub tube, and the tips of the blades are fixedly connected to the corresponding positions of the inner ring of the outer tube; the corresponding position of the rotating shaft is fixedly connected to the axial position of the inner hub tube coaxially with the inner hub tube; the corresponding positions of the two ends of the rotating shaft are fixedly connected to the inner holes of the bearings of the front bracket / rear bracket respectively; and permanent magnets are fixedly arranged at the corresponding positions of the outer ring of the outer tube.

[0008] The staggered and laminated blades form a continuous spiral impeller structure; the spaced permanent magnets are wrapped and supported by other stable materials to form a ring shape, and the ring-shaped permanent magnets are combined with the outer cylinder, blades, inner hub cylinder, and rotating shaft to form an integrated inner rotor impeller; the rotating shaft of the integrated inner rotor impeller is rotatably connected to the corresponding bearings of the front bracket / rear bracket; the corresponding area of ​​the ducted fan cabin shell serves as the outer shell of the inner rotor generator.

[0009] Corresponding to the stator core and the winding coil, the annular permanent magnet block and the outer cylinder are embedded in the annular groove-shaped cavity between the rear side of the front lip section guide body and the front side of the rear lip section guide body, the inner circle diameter of the front end of the outer cylinder is consistent with the inner circle diameter of the rear end of the front lip section guide body, and the inner circle diameter of the rear end of the outer cylinder is consistent with the inner circle diameter of the front end of the rear lip section guide body; the outer circle diameter of the rear end of the front fairing is consistent with the outer circle diameter of the front end of the inner hub barrel, and the outer circle diameter of the front end of the rear fairing is consistent with the outer circle diameter of the rear end of the inner hub barrel.

[0010] The rear end position of the front fairing is mounted and fixedly connected to the corresponding position of the front bracket; the front end position of the rear fairing is mounted and fixedly connected to the corresponding position of the rear bracket; the front fairing and the rear fairing also serve as protective covers for the corresponding rotating shafts / bearings respectively, and the corresponding rotating shafts / bearings can be maintained by removing the front fairing and the rear fairing.

[0011] One end of the connecting cable is electrically connected to the corresponding terminals of the stator core and the winding coil respectively, and the other end of the connecting cable is electrically connected to the corresponding input terminal of the control unit respectively.

[0012] The working process of the new ducted wind turbine generator is as follows: wind energy guides the airflow into the duct of the ducted wind turbine cabin shell, and the front lip section guide body and the front fairing together converge / guide the incoming airflow to the integrated inner rotor impeller, and the incoming airflow is then guided by the inner ring of the outer cylinder and the outer ring of the inner hub cylinder to simultaneously drive the blades to rotate and perform work, that is, the blades, outer cylinder, and permanent magnet blocks rotate together to form induced power generation work on the stator core and winding coils, and the airflow that has completed the work is discharged under the guidance of the rear fairing and the rear lip section guide body, and the core and winding coils are connected to the control unit through corresponding connecting cables for other technical processing and output electricity after completing the technical processing.

[0013] Compared with the prior art, the utility model has achieved the following technical effects:

[0014] The utility model discloses a novel ducted wind power generating main engine, wherein a front lip section guide body, a rear lip section guide body, a stator core and a winding coil are fixedly arranged at corresponding positions in a ducted fan cabin body shell, a front bracket and a rear bracket are fixedly arranged at corresponding positions of the front lip section guide body and the rear lip section guide body, and an integrated inner rotor impeller composed of an annular permanent magnet block, an outer cylinder, blades, an inner hub cylinder and a rotating shaft is movably arranged corresponding to the stator core and the winding coil, wind energy guides the airflow into the duct of the ducted fan cabin body shell, the front lip section guide body and the front fairing converge / guide the inlet airflow to the integrated inner rotor impeller, and the inlet airflow is then simultaneously driven by the blades to rotate and do work under the guidance of the inner ring of the outer cylinder and the outer ring of the inner hub cylinder, that is, the blades, the outer cylinder and the permanent magnet block rotate together to form an induction power generation work on the stator core and the winding coil.

[0015] With such arrangement, compared with the method of generating breeze by an L-shaped three-blade horizontal-axis breeze generator and a vertical-axis universal wind turbine using an exposed blade structure, the utility model provides a novel ducted wind power generation main engine, in which a front lip section guide body, a rear lip section guide body, a stator core and a winding coil are fixedly arranged at corresponding positions in the ducted fan cabin shell, and a front bracket and a rear bracket are fixedly arranged at corresponding positions of the front lip section guide body and the rear lip section guide body, respectively, and an integrated inner rotor impeller composed of an annular permanent magnet block, an outer cylinder, blades, an inner hub cylinder and a rotating shaft is movably arranged corresponding to the stator core and the winding coil, and wind energy guides the airflow into the duct of the ducted fan cabin shell, and the front lip section guide body and the front fairing together converge / guide the incoming airflow to the integrated inner rotor impeller, and the incoming airflow is then simultaneously driven by the inner ring of the outer cylinder and the outer ring of the inner hub cylinder to rotate and do work, that is, the blades, the outer cylinder and the permanent magnet block rotate together to exert power on the stator core and the winding coil. The winding coil forms induction power generation to do work; the stator core and the winding coil are fitted / fixed on the corresponding position of the inner circle of the ducted fan cabin shell, that is, the ducted fan cabin shell and the inner rotor generator shell are integrated into one, which reduces the material consumption and manufacturing cost of the whole machine. The ducted fan cabin shell has a large available space and good heat dissipation conditions, and has the space to further expand the wind turbine with higher power; there is no need to add other power transmission devices, and the integrated inner rotor impeller with continuous spiral blades makes the moving parts lighter and the wind energy utilization rate higher. It can also better adapt to the low-speed wind environment and improve the power generation capacity under weak wind conditions; at the same time, the front fairing and the rear fairing can be removed to carry out maintenance work on the corresponding shaft / bearing, and the convenient maintenance can reduce the later operating costs; it can be suitable for more applications, especially in areas with weak wind resources such as cities or mountainous areas, and can more effectively reduce the emission of greenhouse gases such as carbon dioxide, which is beneficial to environmental protection and sustainable development. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The accompanying drawings illustrate exemplary embodiments of the present invention and are used to explain the principles of the present invention together with the description. These drawings are included to provide a further understanding of the present invention, and the drawings are included in and constitute a part of this specification.

[0017] Figure 1 It is a left-side overall structural schematic diagram of an embodiment of the utility model;

[0018] Figure 2 This is a schematic diagram of the overall structure of an embodiment of the utility model from a top view;

[0019] Figure 3 This is a schematic diagram of the overall structure of an embodiment of the utility model;

[0020] Figure 4 For the utility model embodiment Figure 1A schematic diagram of the enlarged structure of the middle A area;

[0021] Figure 5 For the utility model embodiment Figure 2 Schematic diagram of the enlarged structure of the middle B area;

[0022] Figure 6 This is the electrical schematic diagram of the embodiment of the utility model;

[0023] Description of reference numerals:

[0024] 1- ducted fan cabin shell; 2- front lip section guide body; 3- rear lip section guide body; 4- front bracket; 5- rear bracket; 6- stator core and winding coil; 7- inner hub; 8- blades; 9- outer cylinder; 10- permanent magnet block; 11- rotating shaft; 12- bearing; 13- connecting cable; 14- front fairing; 15- rear fairing; 16- control unit. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by other technicians in the field without creative work are within the scope of protection of the utility model.

[0026] In order to make the above-mentioned purposes, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0027] refer to Figure 1-Figure 6 As shown, the arrow direction is forward, introducing a new type of ducted wind power generation host provided in an embodiment of the utility model.

[0028] Specifically, a new type of ducted wind turbine generator includes a ducted wind turbine nacelle shell 1, a front lip section guide body 2, a rear lip section guide body 3, a front bracket 4, a rear bracket 5, a stator core and winding coil 6, an inner hub 7, blades 8, an outer cylinder 9, a permanent magnet block 10, a rotating shaft 11, a bearing 12, a connecting cable 13, a front fairing 14, a rear fairing 15, and a control unit 16.

[0029] More specifically, in front view, top view and left view, the inner wall of the ducted fan cabin shell 1 is a circular tube penetrating from front to back; a front lip section guide body 2 is fixedly arranged in an embedded manner at a corresponding position of the front section of the inner wall of the ducted fan cabin shell 1, and a rear lip section guide body 3 is fixedly arranged in an embedded manner at a corresponding position of the rear section of the inner wall of the ducted fan cabin shell 1; a front bracket 4 is fixedly arranged at a corresponding position of the front lip section guide body 2, and a rear bracket 5 is fixedly arranged at a corresponding position of the rear lip section guide body 3; bearings 12 are fixedly arranged at the center positions of the front bracket 4 and the rear bracket 5, and the inner holes of the bearings 12 of the front bracket 4 / rear bracket 5 are coaxial; At a position between the rear side of the front lip section guide body 2 and the front side of the rear lip section guide body 3, the outer ring of the stator core and the winding coil 6 are fixedly connected to the corresponding positions of the inner ring wall of the ducted fan cabin shell 1; the roots of the blades 8 are fixedly connected to the corresponding positions of the outer ring of the inner hub tube 7, and the tips of the blades 8 are fixedly connected to the corresponding positions of the inner ring of the outer tube 9; the corresponding positions of the rotating shaft 11 are fixedly connected to the axial position of the inner hub tube 7, being coaxial with the inner hub tube 7; the corresponding positions of the two ends of the rotating shaft 11 are fixedly connected to the inner holes of the bearing 12 of the front bracket 4 / rear bracket 5; and permanent magnet blocks 10 are fixedly arranged at the corresponding positions of the outer ring of the outer tube 9.

[0030] The staggered and laminated blades 8 form a continuous spiral impeller structure; the spaced permanent magnet blocks 10 are wrapped and supported by other stable materials to form a circular ring shape, and the circular ring-shaped permanent magnet blocks 10 are combined with the outer tube 9, blades 8, inner hub tube 7, and rotating shaft 11 to form an integrated inner rotor impeller; the rotating shaft 11 of the integrated inner rotor impeller is rotatably connected to the corresponding bearings 12 of the front bracket 4 / rear bracket 5; the corresponding area of ​​the ducted fan cabin shell 1 serves as the outer shell of the inner rotor generator.

[0031] Corresponding to the stator core and the winding coil 6, the annular permanent magnet block 10 and the outer cylinder 9 are embedded in the annular groove-shaped cavity between the rear side of the front lip section guide body 2 and the front side of the rear lip section guide body 3. The inner ring diameter at the front end of the outer cylinder 9 is consistent with the inner ring diameter at the rear end of the front lip section guide body 2, and the inner ring diameter at the rear end of the outer cylinder 9 is consistent with the inner ring diameter at the front end of the rear lip section guide body 3; the rear end outer ring diameter of the front fairing 14 is consistent with the front end outer circle diameter of the inner hub 7, and the front end outer ring diameter of the rear fairing 15 is consistent with the rear end outer circle diameter of the inner hub 7.

[0032] The rear end position of the front fairing 14 is mounted and fixedly connected to the corresponding position of the front bracket 4; the front end position of the rear fairing 15 is mounted and fixedly connected to the corresponding position of the rear bracket 5; the front fairing 14 and the rear fairing 15 also serve as protective covers for the corresponding rotating shafts 11 / bearings 12 respectively, and the front fairing 14 and the rear fairing 15 can be removed to perform maintenance work on the corresponding rotating shafts 11 / bearings 12.

[0033] One end of the connecting cable 13 is electrically connected to corresponding terminals of the stator core and the winding coil 6 , respectively, and the other end of the connecting cable 13 is electrically connected to corresponding input terminals of the control unit 16 , respectively.

[0034] The working process of the new ducted wind turbine generator is as follows: wind energy guides the airflow into the duct of the ducted wind turbine cabin shell 1, and the front lip section guide body 2 and the front fairing 14 together converge / guide the incoming airflow to the integrated inner rotor impeller, and the incoming airflow is then guided by the inner ring of the outer cylinder 9 and the outer ring of the inner hub cylinder 7 while pushing the blades 8 to rotate and perform work, that is, the blades 8, the outer cylinder 9, and the permanent magnet block 10 rotate together to form induced power generation work on the stator core and the winding coil 6, and the airflow that has completed the work is discharged under the guidance of the rear fairing 15 and the rear lip section guide body 3, and the core and the winding coil 6 are connected to the control unit 16 through the corresponding connecting cable 13 for other technical processing and output power after completing the technical processing.

[0035] This specification uses specific examples to illustrate the principles and implementation methods of the utility model. The above examples are only used to help understand the method and core idea of ​​the utility model. At the same time, for those skilled in the art, according to the idea of ​​the utility model, there will be changes in the specific implementation methods and application scope. In summary, the content of this specification should not be understood as limiting the utility model.

[0036] Those skilled in the art should understand that the above embodiments are only for the purpose of clearly illustrating the present invention, and are not intended to limit the scope of the present invention. For those skilled in the art, other changes or modifications may be made based on the above disclosure, and these changes or modifications are still within the scope of the present invention.

Claims

1. A new type of ducted wind power generator, characterized by: A novel ducted wind power generation main engine comprises a ducted fan nacelle shell (1), a front lip section guide body (2), a rear lip section guide body (3), a front bracket (4), a rear bracket (5), a stator core and winding coils (6), an inner hub (7), blades (8), an outer cylinder (9), a permanent magnet block (10), a rotating shaft (11), a bearing (12), a connecting cable (13), a front fairing (14), a rear fairing (15), and a control unit (16); the inner wall of the ducted fan nacelle shell (1) is a circular tube penetrating from front to back; the front lip section guide body (2) is embedded and fixedly arranged at a corresponding position of the front section of the inner wall of the ducted fan nacelle shell (1), and the rear lip section guide body (3) is embedded and fixedly arranged at a corresponding position of the rear section of the inner wall of the ducted fan nacelle shell (1); the front bracket (4) is fixedly arranged at a corresponding position of the front lip section guide body (2), and the rear lip section guide body (3) is fixedly arranged at a corresponding position of the rear section of the inner wall of the ducted fan nacelle shell (1); A rear bracket (5) is fixedly arranged at a corresponding position of the section guide body (3); bearings (12) are fixedly arranged at the center positions of the front bracket (4) and the rear bracket (5); at a position between the rear side of the front lip section guide body (2) and the front side of the rear lip section guide body (3), the outer ring of the stator core and the winding coil (6) are fixedly connected to the corresponding position of the inner ring wall of the ducted fan cabin shell (1); the blade roots of the blades (8) are fixedly connected to the corresponding positions of the outer ring of the inner hub tube (7), and the blade tips of the blades (8) are fixedly connected to the corresponding positions of the inner ring of the outer tube (9); the corresponding position of the rotating shaft (11) is fixedly connected to the axial position of the inner hub tube (7) coaxially with the inner hub tube (7); the corresponding positions of the two ends of the rotating shaft (11) are fixedly connected to the inner holes of the bearings (12) of the front bracket (4) / the rear bracket (5); and permanent magnet blocks (10) are fixedly arranged at the corresponding positions of the outer ring of the outer tube (9).

2. According to claim 1, the novel ducted wind power generator is characterized by: The staggered and laminated blades (8) form a continuous spiral impeller structure; the spaced-apart permanent magnet blocks (10) are wrapped and supported by other stable materials to form a circular ring shape; the circular ring-shaped permanent magnet blocks (10) are combined with the outer cylinder (9), the blades (8), the inner hub cylinder (7), and the rotating shaft (11) to form an integrated inner rotor impeller; the corresponding area of ​​the ducted fan cabin shell (1) serves as the outer shell of the inner rotor generator.

3. The novel ducted wind power generator according to claim 1 is characterized in that: Corresponding to the stator core and the winding coil (6), the annular permanent magnet block (10) and the outer cylinder (9) are embedded in the annular groove-shaped cavity between the rear side of the front lip section guide body (2) and the front side of the rear lip section guide body (3); the inner ring diameter at the front end of the outer cylinder (9) is consistent with the inner ring diameter at the rear end of the front lip section guide body (2); the inner ring diameter at the rear end of the outer cylinder (9) is consistent with the inner ring diameter at the front end of the rear lip section guide body (3); the outer ring diameter at the rear end of the front fairing (14) is consistent with the outer diameter of the front end of the inner hub cylinder (7); the outer ring diameter at the front end of the rear fairing (15) is consistent with the outer diameter of the rear end of the inner hub cylinder (7).

4. The novel ducted wind power generator according to claim 1 is characterized in that: The rear end of the front fairing (14) is fixedly connected to the corresponding position of the front bracket (4); the front end of the rear fairing (15) is fixedly connected to the corresponding position of the rear bracket (5); the front fairing (14) and the rear fairing (15) also serve as protective covers for the corresponding rotating shafts (11) / bearings (12).

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