CN112636535A - Wind driven generator and in-situ ventilation system for wind driven generator - Google Patents
Wind driven generator and in-situ ventilation system for wind driven generator Download PDFInfo
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- CN112636535A CN112636535A CN202011492939.6A CN202011492939A CN112636535A CN 112636535 A CN112636535 A CN 112636535A CN 202011492939 A CN202011492939 A CN 202011492939A CN 112636535 A CN112636535 A CN 112636535A
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- balance
- balance disc
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- ventilation system
- disc
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K9/00—Arrangements for cooling or ventilating
- H02K9/02—Arrangements for cooling or ventilating by ambient air flowing through the machine
- H02K9/04—Arrangements for cooling or ventilating by ambient air flowing through the machine having means for generating a flow of cooling medium
- H02K9/06—Arrangements for cooling or ventilating by ambient air flowing through the machine having means for generating a flow of cooling medium with fans or impellers driven by the machine shaft
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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
- F03D9/00—Adaptations of wind motors for special use; Combinations of wind motors with apparatus driven thereby; Wind motors specially adapted for installation in particular locations
- F03D9/20—Wind motors characterised by the driven apparatus
- F03D9/25—Wind motors characterised by the driven apparatus the apparatus being an electrical generator
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
- H02K7/14—Structural association with mechanical loads, e.g. with hand-held machine tools or fans
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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)
Abstract
The invention discloses a wind driven generator and an in-situ ventilation system for the wind driven generator, wherein the in-situ ventilation system for the wind driven generator comprises a support frame, the support frame is provided with an outer support body of the support frame for mounting and supporting a rotor and an inner support body of the support frame for mounting and fixing a rotating shaft, and support frame blades are arranged between the outer support body of the support frame and the inner support body of the support frame. The in-situ ventilation system for the wind driven generator moves along with the rotor of the wind driven generator, the support frame blades provide a forced ventilation effect, the internal flow resistance of the generator is reduced, the internal wind path flow of the generator is increased, and the temperature rise of the generator is reduced.
Description
Technical Field
The invention relates to the technical field of wound-rotor motors, in particular to an in-situ ventilation system for a wind driven generator. It also relates to a wind power generator.
Background
In the wind driven generator, fluid in the generator is a main medium for bringing out heat in the motor, and the flow of an inner wind path is important for the temperature rise of the generator.
Referring to fig. 2 and 3, windings are arranged on both the stator and the rotor of the wound-rotor wind driven generator, rotor supporting frames 4 are arranged on the rotating shafts at the end parts, and fluid needs to wash the rotor windings before entering rib plates of the rotating shafts, and then passes through ventilation holes in the rotor supporting frames 4 after turning at 90 degrees. Compared with an asynchronous wind driven generator, the wind resistance generator has the advantages that three local wind resistances are added at the end part of the generator, namely the wind resistance generator flushes the rotor winding, the ventilation section is changed from large to small before entering the rotor support frame 4, and the ventilation section is changed from small to large after flowing out of the rotor support frame 4. The existing wound wind driven generator has large internal flow resistance and low internal wind path flow, and the rotor support frame 4 of the double-fed wind driven generator can only realize the functions of supporting a rotor, fixing an end ring and the like, and does not have the effects of enhancing ventilation and increasing the internal wind path flow; meanwhile, the rotor balance disc 5 also occupies a certain space at the end part of the motor, and the wind resistance of the inner wind path is increased.
Therefore, how to provide an auxiliary ventilation system for a wind driven generator, which reduces the internal flow resistance of the wound-rotor wind driven generator and improves the internal wind path flow, is a technical problem to be solved by those skilled in the art.
Disclosure of Invention
The invention aims to provide an in-situ ventilation system for a wind driven generator, which moves along with a rotor of the wind driven generator, and a support frame blade provides a forced ventilation effect, so that the internal flow resistance of the generator is reduced, the internal wind path flow of the generator is increased, and the temperature rise of the generator is reduced. Another object of the present invention is to provide a wind power generator.
In order to achieve the above purpose, the present invention provides an in-situ ventilation system for a wind power generator, which comprises a support frame, wherein the support frame is provided with an outer support body for mounting and supporting a rotor and an inner support body for mounting and fixing a rotating shaft, and support frame blades are arranged between the outer support body of the support frame and the inner support body of the support frame.
Preferably, the balance weight assembly comprises a balance disc, wherein the balance disc is provided with balance disc blades, and the balance disc is detachably connected with the balance weight.
Preferably, the balance disc is provided with an outer support body of the balance disc for detachably connecting the balance weight and an inner support body of the balance disc for installing and fixing the rotating shaft, and the balance disc blades are arranged between the outer support body of the balance disc and the inner support body of the balance disc.
Preferably, the balance disc comprises a first balance disc and a second balance disc which are respectively positioned at the inner ring and the outer ring, the first balance disc comprises a first balance disc outer support body, a first balance disc inner support body and a first balance disc blade arranged between the first balance disc outer support body and the first balance disc inner support body, and the second balance disc comprises a second balance disc outer support body, a second balance disc inner support body and a second balance disc blade arranged between the second balance disc outer support body and the second balance disc inner support body.
Preferably, the support frame is integrally or separately arranged, and/or; the first balance disc is integrally or separately arranged and/or is provided with a first balance disc; the second balance disc is arranged integrally or separately.
Preferably, the support body in the support is used for being welded or clamped and fixed with the rotating shaft, the support body outside the support is welded or clamped and fixed with the support ring, and the support frame blades are respectively welded or clamped and fixed with the support body in the support and the support ring.
Preferably, the first balance disc inner support body is used for being welded or clamped and fixed with the rotating shaft, and the first balance disc blade is respectively welded or clamped and fixed with the first balance disc inner support body and the first balance disc outer support body.
Preferably, the second balance disc inner support body is used for being welded or clamped and fixed with the rotating shaft, and the second balance disc blade is respectively welded or clamped and fixed with the second balance disc inner support body and the second balance disc outer support body.
Preferably, the balance weight is fixed to the balance pan outer support by a bolt.
The invention also provides a wind power generator comprising an in-situ ventilation system for a wind power generator as defined in any one of the preceding claims.
Compared with the prior art, the in-situ ventilation system for the wind driven generator comprises a support frame, wherein the support frame is provided with an outer support body and an inner support body, the outer support body of the support frame is provided with a support rotor, the inner support body of the support frame is provided with a fixed rotating shaft, and support frame blades are arranged between the outer support body of the support frame and the inner support body of the support frame; during assembly, the support frame supports the rotor and fixes the rotor to the rotating shaft; when the wind driven generator is used, the rotating shaft drives the supporting frame and the rotor to rotate, the supporting frame blades of the supporting frame synchronously rotate and drive airflow to flow under the rotating action, at the moment, the supporting frame blades provide a forced ventilation effect along with the rotor of the wind driven generator, the internal flow resistance of the generator is reduced, the internal air path flow of the generator is increased, and the temperature rise of the generator is reduced.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
FIG. 1 is a schematic diagram of an in-situ ventilation system for a wind turbine according to an embodiment of the present invention;
FIG. 2 is a schematic view of a rotor support frame of the prior art;
FIG. 3 is a schematic structural diagram of a prior art rotor balance disc;
fig. 4 is a schematic structural diagram of a balance disk when the first balance disk and the second balance disk are combined according to an embodiment of the present invention.
Wherein:
1-support frame, 2-first balance disc, 3-second balance disc, 4-rotor support frame, 5-rotor balance disc, 6-combined blade, 7-clamping groove, 11-support frame outer support body, 12-support frame support ring, 13-key groove, 14-support frame inner support body, 15-support frame blade, 21-first balance block, 22-first balance disc outer support body, 23-first balance disc inner support body, 24-first balance disc blade, 31-second balance block, 32-second balance disc outer support body, 34-second balance disc blade, 41-support frame support, 42-support steel ring and 43-rotor key groove.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In order that those skilled in the art will better understand the disclosure, the invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
Referring to fig. 1 to 4, in which fig. 1 is a schematic structural diagram of an in-situ ventilation system for a wind turbine according to an embodiment of the present invention, fig. 2 is a schematic structural diagram of a rotor supporting frame in the prior art, fig. 3 is a schematic structural diagram of a rotor balancing disk in the prior art, and fig. 4 is a schematic structural diagram of a balancing disk when a first balancing disk and a second balancing disk are combined according to an embodiment of the present invention.
In a first specific embodiment, the in-situ ventilation system for the wind driven generator provided by the invention comprises a support frame 1, wherein the support frame 1 is provided and mainly comprises an outer support body 11 and an inner support body 14, the outer support body 11 is positioned at the outer ring of the support frame 1 and provides the function of mounting and supporting a rotor, the inner support body 14 is positioned at the inner ring of the support frame 1 and provides the function of mounting and fixing a rotating shaft, and support frame blades 15 are arranged between the outer support body 11 and the inner support body 14.
It should be noted that the supporting frame 1 in this embodiment functions similarly to the rotor supporting frame 4 in the prior art, and is also used for mounting the rotor and fixing the rotor to the rotating shaft; what is different is that, the support frame 1 in this embodiment improves the structure of the part between the support frame inner support body 14 and the support frame outer support body 11, and adopts the mode of additionally adding the support frame blades 15 to replace the ventilation holes, so that when the support frame 1 and the rotor rotate on the rotating shaft, the support frame blades 15 synchronously rotate and drive the airflow to flow, and at the moment, along with the rotor movement of the wind driven generator, the support frame blades 15 provide the forced ventilation effect, thereby reducing the internal flow resistance of the generator, increasing the internal wind path flow of the generator, and reducing the temperature rise of the generator.
Illustratively, the stent inner support 14 and the stent outer support 11 are concentric steel rings with different inner diameters, the radial dimension of the stent inner support 14 is smaller than that of the stent outer support 11, and the stent blade 15 is a steel blade with two ends respectively fixed with the stent inner support 14 and the stent outer support 11. Similarly, other metal or non-metal materials should also fall within the scope of the present embodiment as long as they can support the rotor, fix the rotor to the rotating shaft, and drive the air to flow through the blades.
On the basis, the in-situ ventilation system for the wind driven generator further comprises a balance disc, wherein the balance disc is provided with balance disc blades, and the balance disc is detachably connected with the balance block.
It should be noted that the balance disc in this embodiment has a similar function to the rotor balance disc 5 in the prior art, and also has a function of fixing to the rotating shaft and providing weight-increasing balance; in distinction, the balance disc in this embodiment improves both the way of weighting balance and the internal wind path flow of the generator.
In the embodiment, the balance blocks are detachably connected with the balance disc, different numbers and specifications of balance blocks can be selected according to needs, the balance blocks are fixed on the balance disc or detached from the balance disc, different weight increasing balance effects can be realized, the balance disc does not need to be replaced integrally, and the assembly and disassembly are convenient and rapid; besides, the balance disc also adopts a blade structure similar to the support frame 1, and at this time, the balance disc in the embodiment replaces the ventilation holes of the rotor balance disc 5 in the prior art with the structural form of the balance disc blades, which is equivalent to that the support rib plates between the existing ventilation holes are modified into the blades with a certain inclination angle, when the rotating shaft rotates, the balance disc blades synchronously rotate and drive airflow to flow, the effect of the balance disc blades is similar to that of the support frame blades 15, the balance disc blades provide a forced ventilation effect along with the movement of a rotor of the wind driven generator, the forced ventilation effect of the support frame blades 15 is combined at the moment, the balance disc blades and the support frame blades 15 provide a dual forced ventilation effect, the internal flow resistance of the generator is further reduced, the internal air flow of the generator is further increased, and the temperature rise of the generator is further reduced.
Illustratively, the balance disc is provided with a balance disc outer support body and a balance disc inner support body, the balance disc outer support body and the balance disc inner support body are concentric steel rings with different inner diameters, the radial size of the balance disc inner support body is smaller than that of the balance disc outer support body, the balance disc outer support body is detachably connected with a balance block, a rotating shaft is fixedly installed on the balance disc inner support body, and the balance disc blades are steel blades, two ends of each steel blade are respectively fixed with the balance disc outer support body and the balance disc inner support body.
In order to further increase the internal wind flow of the generator, the balance disk is provided with two groups of balance disk blades, and the balance disk comprises a first balance disk 2 and a second balance disk 3 which are respectively positioned at the inner ring and the outer ring, the first balance disk blades 24 are arranged on the first balance disk 2, and the second balance disk blades 34 are arranged on the second balance disk 3. In the design process, parameters such as the number, the inclination angle, the thickness and the width of the support frame blades 15, the first balance disk blades 24 and the second balance disk blades 34 can be reasonably designed according to the size of the end space of the motor, the mechanical strength, the working characteristic of the rotor and the wind resistance characteristic of the system.
In this embodiment, the first balance disk 2 and the second balance disk 3 may be configured as an inner ring and an outer ring of the same circular steel ring, or may be configured as two independent circular steel rings, and when two independent circular steel rings are configured, the first balance disk 2 and the second balance disk 3 are both provided with their own outer support body and inner support body of the balance disk.
Specifically, the first balance disk 2 includes a first balance disk outer support 22 and a first balance disk inner support 23, the first balance disk outer support 22 and the first balance disk inner support 23 are concentric steel rings with different inner diameters, the radial dimension of the first balance disk inner support 23 is smaller than that of the first balance disk outer support 22, and the first balance disk blade 24 is a steel blade with two ends respectively fixed to the first balance disk outer support 22 and the first balance disk inner support 23.
Specifically, the second balance disc 3 includes a second balance disc outer support 32 and a second balance disc inner support, the second balance disc outer support 32 and the second balance disc inner support are concentric steel rings with different inner diameters, the radial size of the second balance disc inner support is smaller than that of the second balance disc outer support 32, and the second balance disc blades 34 are steel blades with two ends respectively fixed to the second balance disc outer support 32 and the second balance disc inner support.
Illustratively, the balance weight is fixed to the balance pan outer support by bolts.
In this embodiment, the balance weight includes a first balance weight 21 and a second balance weight 31 respectively disposed on the first balance disk 2 and the second balance disk 3, connection holes may be uniformly or irregularly disposed on the circumferences of the first balance disk outer support 22 and the second balance disk outer support 32 at equal intervals, the first balance weight 21 is fixed to the first balance disk outer support 22 by bolts, the second balance weight 31 is fixed to the second balance disk outer support 32 by bolts, at most twenty-four different balance weights may be fixed, the actual number thereof is determined according to a rotor dynamic balance test, a specific balance disk is not designed for a specific motor, the motor applied thereto is more extensive, and the balance disk structure is platformized and generalized.
In a specific embodiment, the first balance disk 2 and the second balance disk 3 share the inner ring of the concentric steel ring, that is, the first balance disk inner support 23 and the second balance disk inner support are of the same inner ring structure, while the first balance disk outer support 22 and the second balance disk outer support 32 are of the outer ring structure of the first balance disk 2 and the second balance disk 3, respectively, such that the first balance disk blades 24 are disposed between the inner ring structure and the outer ring structure of the first balance disk 2, and the second balance disk blades 34 are disposed between the inner ring structure and the outer ring structure of the second balance disk 3.
In another specific embodiment, as shown in fig. 4, the first balance disk 2 and the second balance disk 3 are further combined, the first balance disk 2 is used as an inner ring structure, the second balance disk 3 is used as an outer ring structure, the combined blade 6 is only arranged between the inner ring structure and the outer ring structure of the support frame 1, and the combined blade 6 is installed and positioned through a clamping groove 7 arranged on the inner ring structure and the outer ring structure and is fixed through welding, which shall also belong to the description scope of the present embodiment.
Wherein, each part of the support frame 1 can be arranged integrally or separately, such as integral casting molding and assembling, etc., and shall belong to the description scope of the embodiment; similarly, the first balance disk 2 and the second balance disk 3 may be integrally or separately formed, such as integrally cast and assembled, and the like, and shall fall within the scope of the present embodiment.
Illustratively, the inner support 14 of the bracket is welded or clamped with the rotating shaft, the outer support 11 of the bracket is welded or clamped with the support ring 12 of the bracket, the support ring 12 is specifically an outer steel ring for supporting the rotor, and the blades 15 of the support frame are respectively welded or clamped with the inner support 14 of the bracket and the support ring 12 of the bracket.
In this embodiment, the clamping connection can be realized by using a key groove 13, the key groove 13 is arranged on the inner side of the support body 14 in the bracket, the blade key groove is arranged on the outer side of the support body 14 in the bracket, and the blade key groove is arranged on the inner side of the support ring 12 in the bracket; the rotating shaft is accurately positioned with the support body 14 in the bracket through the key groove 13 and then is fixed through welding; the inner ring of the support frame blade 15 is combined with the support body 14 in the support in a blade keyway aligning and welding mode, and the outer ring of the support frame blade 15 is combined with the support ring 12 in a blade keyway aligning and welding mode.
Illustratively, the first balance disk inner support 23 is welded or clamped with the rotating shaft, and the first balance disk blade 24 is welded or clamped with the first balance disk inner support 23 and the first balance disk outer support 22, respectively.
Illustratively, the second balance disk inner support is welded or clamped to the rotating shaft, and the second balance disk blades 34 are welded or clamped to the second balance disk inner support and the second balance disk outer support 32, respectively.
Similarly, the first balance disk blade 24 and the second balance disk blade 34 may be welded or snap-fit fixed with reference to the alignment and welding of the blade key slots of the support frame blades 15, and will not be described in detail herein.
In the prior art, the bracket steel ring 42 is connected to the bracket support 41 by welding, the bracket support 41 is fixed to the rotating shaft by welding and combining with the rotor key groove 43, and the rotor balance disk 5 is directly welded to the rotating shaft. It should be noted that, in the present embodiment, the connection manner of the support frame 1, the first balance disk 2, and the second balance disk 3 with the rotor and the rotating shaft is similar to the connection manner of the conventional rotor support frame 4 and the conventional rotor balance disk 5 with the rotor and the rotating shaft, and the effects of enhancing ventilation and increasing the flow rate of the internal air passage are achieved in addition to the functions of supporting the rotor, fixing the end ring, and the like.
The in-situ ventilation system for the wind driven generator is particularly suitable for a double-fed wind driven generator, when a rotating shaft rotates, a rotor is like a centrifugal fan, blades of a support frame 1, a first balance disc 2 and a second balance disc 3 are equivalent to the effect of series connection of three axial flow fans, when the in-situ ventilation system is used, blades of the support frame 15, blades of the first balance disc 24 and blades of the second balance disc 34 and a rotor of the generator rotate coaxially, negative pressure is formed at the end part, a rotor power source generates a larger pressure head, a cooling medium flows through the support frame 1 favorably, the flow of an inner air path is increased to enhance the ventilation and cooling effect of the generator, and the safety and the reliability of the generator in operation; under the condition that the selection of the stator and rotor circle system of the generator is limited, the flow of an inner wind path can be increased without changing the design of the stator and the rotor, and the temperature rise of the generator is reduced; because the flow of the inner wind path can be increased, a larger temperature rise allowance provides a larger space for cost reduction design of the generator on the premise of meeting the temperature rise performance of the generator; the air path flow in the generator is increased, so that the possibility is provided for the development of a high-power wind driven generator.
The present invention also provides a wind power generator, which includes the in-situ ventilation system for a wind power generator, and has all the advantages of the in-situ ventilation system for a wind power generator, which are not described in detail herein.
It is noted that, in this specification, relational terms such as first and second, and the like are used solely to distinguish one entity from another entity without necessarily requiring or implying any actual such relationship or order between such entities.
The wind power generator and the in-situ ventilation system for the wind power generator provided by the invention are described in detail above. The principles and embodiments of the present invention are explained herein using specific examples, which are presented only to assist in understanding the method and its core concepts. It should be noted that, for those skilled in the art, it is possible to make various improvements and modifications to the present invention without departing from the principle of the present invention, and those improvements and modifications also fall within the scope of the claims of the present invention.
Claims (10)
1. The in-situ ventilation system for the wind driven generator is characterized by comprising a support frame (1), wherein the support frame (1) is provided with an outer support body (11) for installing and supporting a rotor and an inner support body (14) for installing and fixing a rotating shaft, and support frame blades (15) are arranged between the outer support body (11) and the inner support body (14).
2. The in situ ventilation system for a wind turbine according to claim 1, comprising a balance disc provided with balance disc blades, the balance disc being removably attached to the balance weight.
3. The in-situ ventilation system for wind power generator of claim 2, wherein the balance disc is provided with an outer support body for detachably connecting the balance weight and an inner support body for installing the fixed rotation shaft, and the balance disc blade is arranged between the outer support body and the inner support body.
4. In situ ventilation system for a wind turbine according to claim 3, wherein the balance disc comprises a first balance disc (2) and a second balance disc (3) at the inner and outer ring, respectively, the first balance disc (2) comprising a first balance disc outer support (22), a first balance disc inner support (23) and a first balance disc blade (24) arranged therebetween, the second balance disc (3) comprising a second balance disc outer support (32), a second balance disc inner support and a second balance disc blade (34) arranged therebetween.
5. In-situ ventilation system for wind power generators according to claim 4, characterized in that the support frame (1) is provided in one piece or in separate pieces and/or; the first balance disc (2) is integrally or separately arranged and/or is provided with a first balance disc; the second balance disc (3) is arranged integrally or separately.
6. The in-situ ventilation system for the wind turbine according to claim 5, wherein the in-bracket support (14) is used for being welded or clamped with the rotating shaft, the out-bracket support (11) is welded or clamped with the bracket support ring (12), and the support bracket blades (15) are respectively welded or clamped with the in-bracket support (14) and the bracket support ring (12).
7. In situ ventilation system for a wind turbine according to claim 5, wherein the first inner balance disc support (23) is adapted to be welded or snap-fitted to a shaft, and the first balance disc blades (24) are welded or snap-fitted to the first inner balance disc support (23) and the first outer balance disc support (22), respectively.
8. The in-situ ventilation system for a wind turbine according to claim 5, wherein the second balance disc inner support is configured to be welded or snap-fitted to the shaft, and the second balance disc blades (34) are welded or snap-fitted to the second balance disc inner support and the second balance disc outer support (32), respectively.
9. The in situ ventilation system for a wind turbine according to any of claims 3 to 6, wherein the balance weight is fixed to the balance pan outer support by bolts.
10. A wind power generator, characterized by comprising an in-situ ventilation system for a wind power generator according to any of claims 1 to 9.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011492939.6A CN112636535A (en) | 2020-12-16 | 2020-12-16 | Wind driven generator and in-situ ventilation system for wind driven generator |
| PCT/CN2020/138241 WO2022126688A1 (en) | 2020-12-16 | 2020-12-22 | Wind driven generator and in-situ ventilation system for wind driven generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011492939.6A CN112636535A (en) | 2020-12-16 | 2020-12-16 | Wind driven generator and in-situ ventilation system for wind driven generator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112636535A true CN112636535A (en) | 2021-04-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011492939.6A Pending CN112636535A (en) | 2020-12-16 | 2020-12-16 | Wind driven generator and in-situ ventilation system for wind driven generator |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN112636535A (en) |
| WO (1) | WO2022126688A1 (en) |
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| EP2876780A1 (en) * | 2013-11-26 | 2015-05-27 | Siemens Aktiengesellschaft | Device with electric machine in lightweight construction |
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2020
- 2020-12-16 CN CN202011492939.6A patent/CN112636535A/en active Pending
- 2020-12-22 WO PCT/CN2020/138241 patent/WO2022126688A1/en active Application Filing
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| US20050220638A1 (en) * | 2004-03-31 | 2005-10-06 | Ching-Min Yang | Pump device |
| CN201656596U (en) * | 2009-12-25 | 2010-11-24 | 无锡东元电机有限公司 | Rotor of doubly-fed generator |
| CN102377266A (en) * | 2010-08-10 | 2012-03-14 | 株式会社安川电机 | Rotary motor and wind power generation system |
| CN203161648U (en) * | 2013-03-25 | 2013-08-28 | Abb高压电机有限公司 | Air guiding balancing disc and motor or electric generator comprising same |
| CN204304647U (en) * | 2014-12-17 | 2015-04-29 | 重庆赛力盟电机有限责任公司 | Excitation Mode of Medium and Small Hydraulic Generator machine rotor support |
| CN206611258U (en) * | 2017-04-05 | 2017-11-03 | 精基科技有限公司 | A kind of permanent magnet motor Special rotor cooling structure |
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| Publication number | Publication date |
|---|---|
| WO2022126688A1 (en) | 2022-06-23 |
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