CN106089587B - Wind driven generator and wind tunnel with same - Google Patents
Wind driven generator and wind tunnel with same Download PDFInfo
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- CN106089587B CN106089587B CN201610420715.1A CN201610420715A CN106089587B CN 106089587 B CN106089587 B CN 106089587B CN 201610420715 A CN201610420715 A CN 201610420715A CN 106089587 B CN106089587 B CN 106089587B
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- 230000001681 protective effect Effects 0.000 claims description 3
- 238000010248 power generation Methods 0.000 description 8
- 230000003014 reinforcing effect Effects 0.000 description 6
- 230000000694 effects Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000005611 electricity Effects 0.000 description 3
- 230000017525 heat dissipation Effects 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 3
- 238000005299 abrasion Methods 0.000 description 2
- 238000004804 winding Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03D—WIND MOTORS
- F03D1/00—Wind motors with rotation axis substantially parallel to the air flow entering the rotor
- F03D1/02—Wind motors with rotation axis substantially parallel to the air flow entering the rotor having a plurality of rotors
- F03D1/025—Wind motors with rotation axis substantially parallel to the air flow entering the rotor having a plurality of rotors coaxially arranged
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03D—WIND MOTORS
- F03D1/00—Wind motors with rotation axis substantially parallel to the air flow entering the rotor
- F03D1/06—Rotors
- F03D1/065—Rotors characterised by their construction elements
- F03D1/0658—Arrangements for fixing wind-engaging parts to a hub
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
- H02K1/12—Stationary parts of the magnetic circuit
- H02K1/20—Stationary parts of the magnetic circuit with channels or ducts for flow of cooling medium
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K16/00—Machines with more than one rotor or stator
- H02K16/04—Machines with one rotor and two stators
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/72—Wind turbines with rotation axis in wind direction
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Wind Motors (AREA)
- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
Abstract
The invention relates to a wind driven generator and a wind tunnel with the same, wherein the wind driven generator comprises a shell and a generator body arranged in the shell; the generator body comprises an outer stator, a rotor arranged in the outer stator, an inner stator arranged in the rotor and fan blades distributed in a shell and connected with the rotor; wherein, the inner stator, the outer stator and the rotor are coaxially arranged; the wind driven generator further comprises a first support column distributed in the shell for supporting the outer stator and a second support column distributed in the shell for supporting the inner stator. Compared with the prior art, because the generator body comprises an inner stator, an outer stator and a rotor, when each fan blade drives the rotor to rotate under the action of wind power, the generator body can simultaneously generate induced electromotive force outside the rotor and in the rotor respectively, so that the utilization rate of wind energy of the wind driven generator is improved. In addition, the inner stator and the outer stator are fixedly connected with the shell through the supporting columns respectively, so that the supporting strength of the generator body is improved.
Description
Technical Field
The invention relates to power generation equipment, in particular to a wind driven generator and a wind tunnel with the wind driven generator.
Background
Wind power is renewable clean energy, wind power resources in China are abundant, and by the end of 2014, wind power generation accounts for 7% of annual power generation amount and is far away from about 20% of advanced countries, while in some European countries, such as Denmark, the proportion of wind power generation is close to 40%. At present, the existing wind power generation technology, especially the wind power station built in some large wind zones, has the following defects both at home and abroad:
1. due to the technical structure problem of the wind driven generator, the wind driven generator cannot be suitable for generating electricity at high wind speed of more than 7 grades. 2. The wind energy utilization is too low. 3. During power generation, the temperature of the generator is too high, which is easy to cause damage and damage 3 and is not beneficial to installation and maintenance.
Therefore, how to provide a wind driven generator which has a simple structure, is convenient to maintain, has good heat dissipation, and has high strength and high wind energy utilization rate is a problem to be solved at present.
Disclosure of Invention
The invention aims to provide a wind driven generator and a wind tunnel with the same, which have the advantages of simple structure, easy maintenance, good heat dissipation performance and high wind energy utilization rate, and can not be damaged due to the problem of self strength when the wind power generator generates electricity at high wind speed.
In order to solve the technical problem, the invention provides a wind driven generator, which comprises a shell with an air inlet and an air outlet, and a generator body arranged in the shell: the generator body comprises an outer stator, a rotor which is arranged in the outer stator and provided with a hollow part, an inner stator which is arranged in the hollow part of the rotor, and fan blades which are distributed in the shell and connected with the rotor; wherein the outer stator, the rotor and the inner stator are all coaxially arranged;
the wind driven generator also comprises first supporting columns distributed in the shell and used for supporting the outer stator, and second supporting columns distributed in the shell and used for supporting the inner stator; the two ends of the first supporting column are respectively fixedly connected with the shell and the outer stator, and the two ends of the second supporting column are respectively fixedly connected with the shell and the inner stator.
In addition, the invention also provides a wind tunnel, which comprises M wind driven generators; and M is a natural number greater than 1, and an annular flange plate for detachably connecting the shells of the two wind driven generators is arranged between every two adjacent wind driven generators.
Compared with the prior art, the wind driven generator has the advantages that the generator body is composed of the outer stator, the rotor and the inner stator, the structure is simple, the maintenance is easy, when the rotor is driven to rotate by the wind power of each fan blade, the magnetic lines of force of the rotor winding can be cut by the outer stator and the inner stator at the same time, and therefore the generator body can respectively generate induced electromotive force outside the rotor and inside the rotor, the integral generating efficiency of the wind driven generator is improved, and the wind energy utilization rate of the wind driven generator is further improved. In addition, because the inner stator and the outer stator are respectively fixedly connected with the shell through the supporting columns, the supporting strength of the generator body in the shell is improved, the phenomena of shaking, vibration and the like when the generator body generates electricity under the condition of high wind speed are prevented, and the generator body is prevented from being damaged.
And reinforcing ribs for propping against the shell wall of the wind driven generator shell are distributed on the annular flange plate. Through the strengthening rib that sets up on the annular flange board, can improve the support intensity of annular flange on the shell.
Further, the rotor comprises a rotor body arranged in the outer stator and a rotor shaft connected with the rotor body; the head and the tail of the rotor shaft are partially exposed from two ends of the outer stator respectively, and the fan blades are arranged at the head and the tail of the rotor shaft in an encircling mode at equal intervals respectively. Thereby after the air current got into the shell from the air intake of shell in, the air current can be by reutilization to guarantee that the fan blade that sets up on rotor shaft head and afterbody can drive the rotor body and rotate under the effect of wind power successively, thereby further improve the utilization ratio of wind energy.
Furthermore, the head and the tail of the rotor shaft are respectively provided with a groove body for fixing the fan blade in a surrounding manner. The grooves annularly arranged at the head and the tail of the rotor shaft can facilitate the installation and fixation of each fan blade on the rotor shaft.
Furthermore, bearing sleeves matched with the outer stators are respectively sleeved on the rotor shaft. The bearing sleeve can prevent the rotor shaft from directly rubbing with the outer stator during rotation, so as to prevent the rotor shaft and the outer stator from being worn.
Furthermore, the wind driven generator also comprises a first guard ring for fixedly connecting all the fan blades arranged at the head of the rotor shaft in a surrounding manner, and a second guard ring for fixedly connecting all the fan blades arranged at the tail of the rotor shaft in a surrounding manner; the length of each fan blade arranged at the head of the rotor shaft in a surrounding mode is equal to that of each fan blade arranged at the tail of the rotor shaft in a surrounding mode, and the first guard ring and the second guard ring are fixedly connected with the end portions of the corresponding fan blades. Through addding first guard ring and second guard ring for encircle each fan blade that sets up at rotor shaft head and can become a whole under the effect of wind power, improved each fan blade and receive the intensity of wind force effect time spent, avoid appearing rocking or because of the deformation phenomenon of wind speed production too big, thereby further improved reliability and stability when the fan blade drives the rotor and rotates.
Furthermore, grooves used for being inserted by the end portions of the fan blades are distributed on the surfaces of the inner edges of the first protection ring and the second protection ring. The two protective rings and the corresponding fan blades can be conveniently and fixedly installed through the grooves.
Further, the inner stator comprises a stator body arranged in the rotor, and a stator shaft connected with the stator body; the head part and the tail part of the stator shaft are respectively exposed out of two ends of the rotor and are respectively fixedly connected with the shell wall of the shell through the second supporting column. Therefore, the head part and the tail part of the stator shaft of the inner stator can be simultaneously connected with the shell through the second support column, so that the support strength of the inner stator in the shell is improved.
Furthermore, N second support columns are arranged for connecting the head part of the stator shaft with the shell and N second support columns are arranged for connecting the tail part of the stator shaft with the shell; and N is a natural number greater than 1 and is arranged around the axis of the stator shaft at equal intervals by taking the axis of the stator shaft as a base point. So as to ensure that the supporting force at the two ends of the inner stator is absolutely balanced and improve the supporting strength of the inner stator in the shell.
Further, the stator shaft and the stator body of the inner stator are in an annular structure with a through hole. Through the through hole of seting up on the inner stator, can improve the heat dispersion of whole generator body.
Furthermore, the first supporting column is provided with N pieces; and N is a natural number greater than 1 and is arranged around the axis of the outer stator at equal intervals by taking the axis of the outer stator as a base point. The supporting force of the outer stator in all directions in the shell is relatively balanced, and therefore the supporting strength of the first supporting columns on the whole outer stator is further improved.
Furthermore, the shell wall of the shell is partially bulged outwards to form N annular bulged parts surrounding the shell wall surface of the shell; wherein, the N is a natural number. Therefore, the outer surface of the shell wall of the shell is of a wave-shaped structure and is similar to the effect of a reinforcing rib, and the strength of the whole shell is improved.
Drawings
Fig. 1 is a schematic structural view of a wind power generator according to a first embodiment of the present invention;
fig. 2 is a schematic structural view of a rotor according to a first embodiment of the present invention;
FIG. 3 is a side view of FIG. 2;
FIG. 4 is a schematic structural diagram of a rotor and a fan blade according to a first embodiment of the present invention;
FIG. 5 is a schematic structural diagram of an inner stator according to a first embodiment of the present invention;
FIG. 6 is a side view of FIG. 5;
fig. 7 is a schematic structural view of an outer stator according to a first embodiment of the present invention;
FIG. 8 is a side view of FIG. 7;
FIG. 9 is a schematic structural diagram of a housing according to a second embodiment of the present invention;
FIG. 10 is a front view of FIG. 9;
FIG. 11 is a schematic structural view of wind turbines in a wind tunnel according to a fourth embodiment of the present invention;
fig. 12 is a schematic view showing the assembly of the annular flange plate and the housing in the fourth embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, embodiments of the present invention will be described in detail below with reference to the accompanying drawings. However, it will be appreciated by those of ordinary skill in the art that numerous technical details are set forth in order to provide a better understanding of the present application in various embodiments of the present invention. However, the technical solution claimed in the claims of the present application can be implemented without these technical details and with various changes and modifications based on the following embodiments.
The first embodiment of the present invention relates to a wind power generator, as shown in fig. 1, including a housing 1 having an air inlet 1-1 and an air outlet 1-2, and a generator body 2 disposed in the housing 1.
The generator body 2 comprises an outer stator 2-1, a rotor 2-2 which is arranged in the outer stator 2-1 and is provided with a hollow part, an inner stator 2-3 which is arranged in the hollow part of the rotor 2-2, and fan blades 2-4 which are distributed in the shell 1 and are connected with the rotor. In the present embodiment, the outer stator 2-1, the rotor 2-2, and the inner stator 2-3 are coaxially provided.
The wind turbine generator according to the present embodiment further includes first support columns 3 distributed in the casing 1 to support the outer stator 2-1, and second support columns 4 distributed in the casing 1 to support the inner stator 2-3. Wherein, two ends of the first supporting column 3 are respectively fixedly connected with the shell 1 and the outer stator 2-1, and two ends of the second supporting column 4 are respectively fixedly connected with the shell 1 and the inner stator 2-3.
It is not difficult to find through the above, because the generator body is formed by the outer stator 2-1, the rotor 2-2 and the inner stator 2-3, not only simple in construction, easy to maintain, and when every blade 2-4 drives the rotor to rotate under the influence of wind-force, can cut the magnetic force line of the rotor winding by the outer stator 2-1 and the inner stator 2-3 at the same time, thus make the generator body can produce the induced electromotive force outside the rotor 2-2 and in the rotor 2-2 separately, in order to raise the integral generating efficiency of the wind-driven generator, and then promote the utilization factor of the wind energy of the wind-driven generator. In addition, the inner stator 2-3 and the outer stator 2-1 are fixedly connected with the shell 1 through the first supporting column 3 and the second supporting column 4 respectively, so that the supporting strength of the generator body 2 in the shell 1 is improved, the phenomena of shaking, vibration and the like during power generation of the generator body 2 under the condition of high wind speed are prevented, and the generator body is prevented from being damaged.
Specifically, in the present embodiment, as shown in FIG. 2, the rotor 2-2 includes a rotor body 2-2-1 disposed inside the outer stator 2-1, a rotor shaft 2-2-2 connected to the rotor body 2-2-1, and the rotor 2-2 has an outer diameter of 2710mm, an inner diameter of 1770mm, a length of 5000mm for the rotor body 2-2-1, and an overall length of 5580 mm.
Wherein, the head and the tail of the rotor shaft 2-2-2 are partially exposed from the two ends of the outer stator 2-1 respectively, so that the fan blades 2-4 can be respectively arranged at the head and the tail of the rotor shaft 2-2-2 in an equidistance surrounding manner. Therefore, in practical use, after the wind source enters the shell 1 from the air inlet 1-1 of the shell 1, the wind source can be reused, so that the wind blades 2-4 arranged at the head and the tail of the rotor shaft 2-2-2 can drive the rotor body 2-2-1 to rotate under the action of wind power, and the utilization rate of the wind power is further improved.
Moreover, it should be noted that, in order to improve the convenience of the fan blade 2-4 during installation, as shown in fig. 3, the head and the tail of the rotor shaft 2-2-2 may be respectively provided with a groove body 2-2-3 for fixing the fan blade 2-4 in a ring manner, twelve groove bodies 2-2-3 are respectively provided at the head and the tail of the rotor shaft 2-2-2, the groove depth of each groove is 50mm, and the corresponding fan blades 2-4 provided at the head and the tail of the rotor shaft 2-2-2 are also twelve. Therefore, during actual assembly, the roots of the blades 2-4 can be directly inserted into the groove bodies 2-2-3 at the head and the tail of the rotor shaft 2-2-2, so that the blades 2-4 can be installed and fixed. Meanwhile, in order to further improve the utilization rate of wind energy entering the shell 1, the groove bodies 2-2-3 arranged at the head of the rotor shaft 2-2-2 and the groove bodies 2-2-3 arranged at the tail of the rotor shaft 2-2-2 can be alternately arranged to ensure that the positions of the fan blades 2-4 arranged at the head of the rotor shaft 2-2-2 and the positions of the fan blades 2-4 arranged at the tail of the rotating shaft 2-2-2 are complementarily overlapped, and the angles of the fan blades 2-4 can be properly adjusted when in use, so that the angles of the fan blades 2-4 can be changed between 15 degrees and 45 degrees, thereby increasing the area of the windward side of the generator body 2 and further improving the utilization rate of the wind energy.
In addition, as a preferable scheme, in order to improve the strength of each fan blade 2-4, as shown in fig. 4, the wind power generator of the present embodiment further includes a first guard ring 5 that fixedly connects each fan blade 2-4 arranged around the head of the rotor shaft 2-2-2, and a second guard ring 6 that fixedly connects each fan blade 2-4 arranged around the tail of the rotor shaft 2-2-2, and in the present embodiment, the first guard ring 5 and the second guard ring 6 are both ring-shaped structures, and have inner diameters of 18940mm, outer diameters of 19000mm, and widths of 250 mm. In order to further improve the rotation efficiency of the rotor shaft and facilitate the assembly between the fan blades 2-4 and the guard ring, the fan blades 2-4 can be designed to have the same length and width, and the length and the width of the fan blades adopted in the embodiment are 8450mm and 400mm respectively. Moreover, when the first guard ring 5 and the second guard ring 6 are installed, twelve grooves (not marked in the figure) for being inserted by the heads of the fan blades 2 to 4 can be respectively and equidistantly formed on the inner edge surfaces of the first guard ring 5 and the second guard ring 6 in advance. Therefore, during actual assembly, the heads of the fan blades 2-4 can be directly inserted into the corresponding grooves, and then the fan blades 2-4 are locked and fixed, so that the heads of the fan blades 2-4 are positioned and fixed.
According to the above, the first protection ring 5 and the second protection ring 6 are additionally arranged, so that the fan blades 2-4 arranged at the head of the rotor shaft 2-2 in a surrounding manner and the fan blades 2-4 arranged at the head of the rotor shaft in a surrounding manner can be integrated under the action of wind force, the strength of the fan blades 2-4 under the action of wind force is improved, the phenomenon of shaking or deformation caused by overlarge wind speed is avoided, and the reliability and stability of the fan blades 2-4 when the rotor 2-2 is driven to rotate are further improved.
In addition, it is worth mentioning that in order to ensure that the rotor 2-2 does not generate friction with the outer stator 2-1 during rotation, bearing sleeves (not marked in the figure) which are matched with the outer stator 2-1 are respectively sleeved at the head and the tail of the rotor shaft 2-2-2, and the rotor shaft can be prevented from generating friction with the outer stator directly during rotation through the bearing sleeves, so that the rotor shaft 2-2-2 and the outer stator 2-1 are prevented from generating abrasion.
Further, as shown in fig. 5 and 6, the above-mentioned inner stator includes a stator body 2-3-1 provided in the rotor 2-2, and a stator shaft 2-3-2 connected to the stator body 2-3-1. As shown in fig. 1, the head and tail of the stator shaft 2-3-2 are partially exposed from the two ends of the rotor 2-2, and are fixedly connected to the wall of the housing 1 through the second support posts 4. Therefore, it is not difficult to find that the head part and the tail part of the stator shaft 2-3-2 are respectively partially exposed from the two ends of the rotor 2-2, so that the head part and the tail part of the stator shaft 2-3-2 of the inner stator can be simultaneously connected with the shell 1 through the second support column 4, and the support force of the two ends of the inner stator 2-3 is absolutely balanced, so that the support strength of the inner stator in the shell is improved.
Specifically, as shown in fig. 5 and 6, in the present embodiment, the outer diameter of the stator body 2-3-1 is 1760mm, the length thereof is 4360mm, and the total length of the inner stator 2-3 is 7480mm greater than the total length of the rotor 5580mm, so that the head and the tail of the stator shaft 2-3-2 of the inner stator can be respectively exposed from both ends of the rotor, thereby ensuring that the second supporting columns 4 can be respectively and simultaneously distributed around the head and the tail of the stator shaft 2-3-2 at equal intervals. Therefore, the supporting force of the head part and the tail part of the stator shaft 2-3-2 of the inner stator in all directions in the shell 1 is relatively balanced, and the supporting strength of the second supporting columns 4 on the whole inner stator 2-3 is improved.
In addition, in order to ensure that the rotor 2-2 does not generate friction with the inner stator 2-3 during rotation, bearing sleeves (not marked in the figure) which are matched with the rotor 2-2 are respectively sleeved at the head part and the tail part of the stator shaft 2-3-2 of the inner stator 2-3, the coaxiality of the rotor and the inner stator during rotation can be ensured through the bearing sleeves, the rotor shaft is prevented from generating friction with the inner stator directly during rotation, and the abrasion phenomenon of the rotor shaft 2-2-2 and the inner stator 2-3 is prevented.
In addition, as can be seen from the above-mentioned manner of assembly between the second support post 4 and the inner stator 2-3, a similar manner can be adopted between the outer stator 2-1 and the first support post 3. Specifically, in the present embodiment, as shown in fig. 7 and 8, the outer stator 2-1 has an inner diameter of 2720mm, an outer diameter of 4000mm, and a length of 5000 mm. Meanwhile, as shown in fig. 1, the first support columns 3 may also be provided with a plurality of first support columns, and the first support columns are arranged around the axis of the outer stator 2-1 at equal intervals, so that the support force of the first support columns 3 on the outer stator 2-1 in each direction in the housing 1 is relatively balanced, and the support strength of each first support column on the whole outer stator is improved.
A second embodiment of the present invention relates to a wind turbine generator, and is a further improvement of the first embodiment, and the main improvements are: in the present embodiment, as shown in fig. 9 and 10, a wall portion of the housing 1 is bulged outward to form a plurality of annular bulged portions 1-1 surrounding the wall surface of the housing 1.
Specifically, the raised part 1-1 is formed by recessing the inner peripheral surface of the housing 1 and protruding toward the outside of the housing 1, and thus it is not difficult to find that the outer surface of the wall of the housing 1 is entirely in a wave-shaped structure like a reinforcing rib by the plurality of annular raised parts 1-1 formed on the surface of the housing 1, thereby improving the strength of the entire housing 1.
A third embodiment of the present invention relates to a wind turbine generator, and is a further improvement of the first embodiment, and the main improvements are: in the present embodiment, the inner stator 2-3 has a through hole, and the through hole integrally penetrates the stator body 2-3-1 and the stator shaft 2-3-2 of the inner stator 2-3, and the hole diameter of the through hole is 1200mm, which is smaller than the outer diameters of the stator body and the stator shaft.
Therefore, it is not difficult to find that a part of heat generated by the generator body during power generation can be discharged outwards through the through holes of the inner stator 2-3 by the through holes formed in the inner stator 2-3, so that the heat dissipation performance of the whole generator body is improved to a certain extent, and the reliability of the generator body during work is further improved.
A fourth embodiment of the present invention relates to a wind tunnel, as shown in fig. 11, including a plurality of wind turbines according to any one of the first to third embodiments, and an annular flange plate 7 for detachably connecting housings of two wind turbines is provided between each adjacent two wind turbines. In actual assembly, the annular flange plates 7 on every two adjacent wind driven generators can be locked and fixed through the locking pieces, so that the connection between the two wind driven generator shells is realized.
In addition, the number of the wind driven generators can be increased or decreased by workers according to actual use requirements, or the length of the shell of each wind driven generator can be properly extended or shortened, so that the wind tunnels of the embodiment have different lengths, and the use requirements of different geographic environments are met.
In addition, it is worth mentioning that in the present embodiment, as shown in fig. 12, the annular flange plate 7 is further circumferentially distributed with the reinforcing ribs 8 for abutting against the wall of the wind turbine housing 1, and each reinforcing rib 8 is approximately in a trapezoidal structure. Therefore, the reinforcing ribs 8 arranged on the annular flange plate 7 can improve the supporting strength of the annular flange plate 7 on the housing 1, so as to improve the strength of the housing 1 of every two adjacent generators after being connected with each other.
It will be understood by those of ordinary skill in the art that the foregoing embodiments are specific examples for carrying out the invention, and that various changes in form and details may be made therein without departing from the spirit and scope of the invention in practice.
Claims (5)
1. The utility model provides a wind driven generator, contains the shell that has air intake and air outlet, sets up generator body in the shell which characterized in that: the generator body comprises an outer stator, a rotor which is arranged in the outer stator and provided with a hollow part, an inner stator which is arranged in the hollow part of the rotor, and fan blades which are distributed in the shell and connected with the rotor;
wherein the outer stator, the rotor and the inner stator are all coaxially arranged;
the wind driven generator also comprises first supporting columns distributed in the shell and used for supporting the outer stator, and second supporting columns distributed in the shell and used for supporting the inner stator;
the two ends of the first supporting column are respectively and fixedly connected with the shell and the outer stator, and the two ends of the second supporting column are respectively and fixedly connected with the shell and the inner stator;
the rotor comprises a rotor body arranged in the outer stator and a rotor shaft connected with the rotor body; the head part and the tail part of the rotor shaft are partially exposed out of two ends of the outer stator respectively; the fan blades are respectively arranged at the head and the tail of the rotor shaft in an equidistant surrounding manner;
the head and the tail of the rotor shaft are respectively provided with a groove body for fixing the fan blade in an annular mode;
the groove bodies arranged at the head part of the rotor shaft and the groove bodies arranged at the tail part of the rotor shaft are alternately arranged;
the inner stator comprises a stator body arranged in the rotor and a stator shaft connected with the stator body; the head part and the tail part of the stator shaft are respectively exposed out of two ends of the rotor and are respectively fixedly connected with the shell wall of the shell through the second supporting column;
the wind driven generator also comprises a first guard ring for fixedly connecting all the fan blades arranged at the head of the rotor shaft in a surrounding manner, and a second guard ring for fixedly connecting all the fan blades arranged at the tail of the rotor shaft in a surrounding manner;
the length of each fan blade arranged at the head of the rotor shaft in a surrounding manner is equal to that of each fan blade arranged at the tail of the rotor shaft in a surrounding manner, and the first guard ring and the second guard ring are fixedly connected with the end parts of the corresponding fan blades;
grooves used for being inserted by the end portions of the fan blades are distributed on the surfaces of the inner edges of the first protective ring and the second protective ring.
2. The wind generator of claim 1, wherein: n second support columns are arranged for connecting the head of the stator shaft with the shell and N second support columns are arranged for connecting the tail of the stator shaft with the shell;
and N is a natural number greater than 1 and is arranged around the axis of the stator shaft at equal intervals by taking the axis of the stator shaft as a base point.
3. The wind generator of claim 1, wherein: the stator shaft and the stator body of the inner stator are both of annular structures with through holes.
4. The wind generator of claim 1, wherein: n first supporting columns are arranged;
and N is a natural number greater than 1 and is arranged around the axis of the outer stator at equal intervals by taking the axis of the outer stator as a base point.
5. A wind tunnel, characterized by: the wind tunnel comprises M wind generators according to any one of claims 1 to 4;
and M is a natural number greater than 1, and an annular flange plate for detachably connecting the shells of the two wind driven generators is arranged between every two adjacent wind driven generators.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610420715.1A CN106089587B (en) | 2016-06-13 | 2016-06-13 | Wind driven generator and wind tunnel with same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610420715.1A CN106089587B (en) | 2016-06-13 | 2016-06-13 | Wind driven generator and wind tunnel with same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106089587A CN106089587A (en) | 2016-11-09 |
| CN106089587B true CN106089587B (en) | 2020-11-13 |
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ID=57846574
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610420715.1A Active CN106089587B (en) | 2016-06-13 | 2016-06-13 | Wind driven generator and wind tunnel with same |
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