CN113090476A - Protection device for aerogenerator and aerogenerator - Google Patents

Protection device for aerogenerator and aerogenerator Download PDF

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Publication number
CN113090476A
CN113090476A CN202110475307.7A CN202110475307A CN113090476A CN 113090476 A CN113090476 A CN 113090476A CN 202110475307 A CN202110475307 A CN 202110475307A CN 113090476 A CN113090476 A CN 113090476A
Authority
CN
China
Prior art keywords
generator
plate
filter plate
shaft
filter
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202110475307.7A
Other languages
Chinese (zh)
Inventor
邵振州
郭辰
张立英
张国
张庆
李家川
李芊
程瑜
高建辉
吕贝
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Huaneng Clean Energy Research Institute
Original Assignee
Huaneng Clean Energy Research Institute
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Huaneng Clean Energy Research Institute filed Critical Huaneng Clean Energy Research Institute
Priority to CN202110475307.7A priority Critical patent/CN113090476A/en
Publication of CN113090476A publication Critical patent/CN113090476A/en
Pending legal-status Critical Current

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Classifications

    • 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
    • F03D80/00—Details, components or accessories not provided for in groups F03D1/00 - F03D17/00
    • 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
    • F03D13/00—Assembly, mounting or commissioning of wind motors; Arrangements specially adapted for transporting wind motor components
    • F03D13/20—Arrangements for mounting or supporting wind motors; Masts or towers for wind motors
    • 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
    • F03D80/00—Details, components or accessories not provided for in groups F03D1/00 - F03D17/00
    • F03D80/50—Maintenance or repair
    • 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
    • F03D80/00—Details, components or accessories not provided for in groups F03D1/00 - F03D17/00
    • F03D80/80—Arrangement of components within nacelles or towers
    • F03D80/88—Arrangement of components within nacelles or towers of mechanical components
    • 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
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K5/00—Casings; Enclosures; Supports
    • H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
    • H02K5/10—Casings or enclosures characterised by the shape, form or construction thereof with arrangements for protection from ingress, e.g. water or fingers
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K5/00—Casings; Enclosures; Supports
    • H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
    • H02K5/20—Casings or enclosures characterised by the shape, form or construction thereof with channels or ducts for flow of cooling medium
    • 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
    • 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
    • Y02E10/728—Onshore wind turbines

Abstract

The invention discloses a protective device for a wind driven generator and the wind driven generator, which comprises a filter plate; the filter plates are arranged on the outer side of the generator and are of an open box structure, the openings of the two filter plates are oppositely arranged, and the filter plates on the upper side and the lower side surround the generator; the outer side wall of the upper side filter plate is provided with a handle, the handle is provided with a fixed shaft, the upper side filter plate is provided with a blind hole, the fixed shaft extends into the blind hole of the upper side filter plate, the bottom of the blind hole is provided with a stop block, the fixed shaft is provided with a movable shaft, the outer side circumference of the movable shaft is provided with a spring, one end of the spring is fixedly connected with the stop block, the other end of the spring is fixedly connected with the fixed shaft, the bottom surface of the blind hole is provided with a clamping; the fixed shaft is provided with a secondary buckle, the secondary buckle extends out of the outer side wall of the upper filter plate, the inner wall of the lower filter plate is provided with a female buckle, and the female buckle and the secondary buckle are clamped and fixed; the lower side filter plate is fixed on a placing plate provided with the generator.

Description

Protection device for aerogenerator and aerogenerator
Technical Field
The invention belongs to the field of wind driven generators, and particularly belongs to a protection device for a wind driven generator and the wind driven generator.
Background
The wind power generator is an electric power device which converts wind energy into mechanical work, the mechanical work drives a rotor to rotate, and finally outputs alternating current, the wind power generator generally comprises components such as a wind wheel, a generator (including a device), a direction regulator (empennage), a tower frame, a speed-limiting safety mechanism, an energy storage device and the like, the working principle of the wind power generator is simpler, the wind wheel rotates under the action of wind power, kinetic energy of the wind is converted into mechanical energy of a wind wheel shaft, the generator rotates under the drive of the wind wheel shaft to generate electricity, in a broad sense, the wind energy is also solar energy, so the wind power generator can be said to be a wind power generator, the wind power generator is a heat source, and the heat energy of atmosphere.
The existing wind driven generator is exposed to wind and rain for a long time, is easy to damage, shortens the service life of the wind driven generator, is poor in protective performance, easily causes external dust to enter the generator, influences the heat dissipation and ventilation effects of the filter screen, and therefore needs to be cleaned regularly, the existing filter screen is inconvenient to take down when being cleaned, the labor intensity of operators is increased, and even danger is brought to operators.
Disclosure of Invention
In order to solve the problems in the prior art, the invention provides a protection device for a wind driven generator and the wind driven generator, and solves the problems that the protection device for the wind driven generator and a filter screen of the wind driven generator are inconvenient to take down during cleaning, and the labor intensity of operators is increased.
In order to achieve the purpose, the invention provides the following technical scheme:
a protection device for a wind driven generator comprises a filter plate, a stop block, a spring, a movable shaft, a handle and a fixed shaft;
the filter plates are arranged on the outer side of the generator and are of an open box structure, the openings of the two filter plates are oppositely arranged, and the filter plates on the upper side and the lower side surround the generator;
the outer side wall of the upper side filter plate is provided with a handle, the handle is provided with a fixed shaft, the upper side filter plate is provided with a blind hole, the fixed shaft extends into the blind hole of the upper side filter plate, the bottom of the blind hole is provided with a stop block, the fixed shaft is provided with a movable shaft, the outer side circumference of the movable shaft is provided with a spring, one end of the spring is fixedly connected with the stop block, the other end of the spring is fixedly connected with the fixed shaft, the bottom surface of the blind hole is provided with a clamping groove, and the movable shaft penetrates through the stop block;
the fixed shaft is provided with a sub-buckle, the sub-buckle extends out of the outer side wall of the upper filter plate, the inner wall of the lower filter plate is provided with a female buckle, and the female buckle and the sub-buckle are clamped and fixed; the lower side filter plate is fixed on a placing plate provided with the generator.
Preferably, a separation plate is arranged between the filter plate and the generator, the separation plate is of a box structure, and the generator is arranged inside the separation plate.
Preferably, an anticorrosive layer is arranged on the inner wall of the isolation plate.
Further, the anticorrosive coating is an asphalt paint coating.
Preferably, the power generator further comprises a fixing plate, one end of the fixing plate is fixedly arranged on the isolation plate, and the fixing plate is fixedly arranged on two sides of the circumference of the power generator.
Preferably, the fixed shaft is symmetrically distributed around the central axis of the handle.
A wind driven generator comprises a base, a tower frame, blades, a cabin, a generator rotor, a generator, a cabin head, a placing plate and a connecting shaft;
the wind power generation device is characterized in that a tower is arranged on the base, a cabin is arranged at the upper end of the tower, a cabin head is arranged at one end of the cabin, a placing plate is arranged inside the cabin, a generator is arranged on the placing plate, a connecting shaft is arranged at the power output end of the generator, a generator rotor is circumferentially arranged on the side wall of one end of the connecting shaft, blades are circumferentially arranged on the side wall of the other end of the connecting shaft, and the blades penetrate through the cabin head;
the protection device for the wind driven generator is arranged on the outer side of the generator.
Preferably, the placing plate is fixed on the inner side wall of the nacelle through screws.
Compared with the prior art, the invention has the following beneficial technical effects:
the invention provides a protective device for a wind driven generator, wherein a filter plate with an open box structure is arranged, the filter plates on the upper side and the lower side protect the generator, a handle, a fixed shaft, a spring, a movable shaft, a stop block and a clamping groove are arranged on the filter plate, when the filter plate on the outer side of the generator needs to be taken down and cleaned, the fixed shaft is driven to move by pressing the handle, so that a son buckle is driven to move, the son buckle is separated from a mother buckle, the spring is compressed, the movable shaft moves to enter the clamping groove, then the handle is lifted upwards, and the stop block, the movable shaft and the fixed shaft all move upwards, so that the filter plates on the upper side and the lower side are separated, the filter plates can be detached, the cleaning is convenient, and the working. Avoid the dismantlement process to bring the damage to the operator, reduce intensity of labour.
Furthermore, through setting up anticorrosive coating and division board, can protect the motor, avoid the generator to stand for a long time and blow the rain and hit, appear damaging easily, improve aerogenerator's life.
The invention provides a wind driven generator, which is protected by arranging a filter plate convenient to disassemble, prevents impurities from being accumulated on the generator and influencing the heat dissipation and the service life of the generator, has a simple integral structure and is convenient to integrally install and disassemble.
Drawings
FIG. 1 is a schematic structural diagram of the present invention.
FIG. 2 is a schematic view of the connection structure of the filter plate of the present invention.
FIG. 3 is an enlarged view of the structure A in FIG. 1 according to the present invention.
FIG. 4 is an enlarged view of the structure B in FIG. 3 according to the present invention.
Fig. 5 is a schematic view of the structure of the filter plate of the present invention.
In the drawings: 1 is a base; 2 is a tower frame; 3 is a blade; 4 is a cabin; 5 is a generator rotor; 6 is a filter plate; 7 is an anticorrosive coating; 8 is a screw; 9 is a generator; 10 is a stop block; 11 is a spring; 12 is a moving shaft; 13 is a sub-button; 14 is a female buckle; 15 is a cabin head; 16 is a fixed plate; 17 is a handle; 18 is a fixed shaft; 19 is a clamping groove; 20 is a separation plate; and 21 is a placing plate.
Detailed Description
The present invention will now be described in further detail with reference to specific examples, which are intended to be illustrative, but not limiting, of the invention.
The invention relates to a protective device for a wind driven generator, which comprises a filter plate 6, a stop block 10, a spring 11, a movable shaft 12, a fixed plate 16, a handle 17 and a fixed shaft 18; the filter 6 sets up in the outside of generator 9, and filter 6 is the opening box structure, and the opening of two filters 6 sets up relatively, and filter 6 of both sides surrounds generator 9 about forming.
Be provided with handle 17 on the lateral wall of upside filter 6, be provided with fixed axle 18 on the handle 17, be provided with the blind hole on the upside filter 6, inside fixed axle 18 stretched into the blind hole of upside filter 6, the blind hole bottom is provided with dog 10, be provided with on the fixed axle 18 and remove axle 12, the outside circumference that removes axle 12 is provided with spring 11, spring 11's one end fixed connection dog 10, spring 11's other end fixed connection fixed axle 18, be provided with draw-in groove 19 on the bottom surface of blind hole, it cooperates with draw-in groove 19 to pass dog 10 and peg graft to remove axle 12.
A sub-buckle 13 is arranged on the fixed shaft 18, the sub-buckle 13 extends out of the outer side wall of the upper filter plate 6, a female buckle 14 is arranged on the inner wall of the lower filter plate 6, and the female buckle 14 is clamped and fixed with the sub-buckle 13; the lower filter plate 6 is fixed to a mounting plate 21 on which the generator 9 is mounted. The downside filter 6 with place for can dismantle between the board 21 and be connected, the convenience is dismantled the downside filter 6 with placing between the board 21.
Be provided with division board 20 between filter 6 and the generator 9, division board 20 is the box structure, and generator 9 sets up the inside at division board 20. An anticorrosive coating 7 is arranged on the inner wall of the isolation plate 20, and the anticorrosive coating 7 is an asphalt paint coating.
One end of the fixing plate 16 is fixedly disposed on the partition plate 20, and the fixing plate 16 is fixedly disposed on both sides of the generator 9 in the circumferential direction. The fixed shafts 18 are symmetrically distributed about the central axis of the handle 17.
When needs take off generator 9 and wash, then through pressing handle 17, make fixed axle 18 remove, it removes to drive son knot 13, thereby make son knot 13 and box 14 separation, compression spring 11, make removal axle 12 remove, enter into draw-in groove 19, later mention handle 17 upwards again, make dog 10, removal axle 12 and fixed axle 18 all rebound, thereby filter 6 separation with upper and lower both sides, can pull down filter 6, and inside anticorrosive coating 7 and division board 20 have been set up, can protect generator 9, avoided generator 9 to stand wind and rain for a long time and hit, the damage appears easily, the life of generator 9 has been shortened, can relax simultaneously pull down filter 6, conveniently wash, work efficiency has been improved.
As shown in fig. 1 to 5, the wind power generator of the present invention includes a base 1, a tower 2 is fixedly installed at a top end of the base 1, a nacelle 4 is fixedly installed at a top end of the tower 2, a nacelle head 15 is fixedly installed at one end of the nacelle 4, a placing plate 21 is installed inside the nacelle 4, a partition plate 20 is installed at a top end of the placing plate 21, an anti-corrosion layer 7 is installed on an inner wall of the partition plate 20, a generator 9 is installed inside the anti-corrosion layer 7, a connecting shaft 22 is installed at one end of the generator 9, the connecting shaft 22 extends to the inside of the nacelle 4 through the partition plate 20, a generator rotor 5 is installed on a circumferential side wall of the connecting shaft 22, blades 3 are installed on a circumferential side wall of the connecting shaft 22, the blades 3 are symmetrically distributed on a central axis of the connecting shaft 22, a filter plate 6 is installed on an outer, and the outer wall of the filter plate 6 is provided with a handle 17, one end of the handle 17 is fixedly provided with a fixed shaft 18, the fixed shaft 18 is symmetrically distributed by the central axis of the handle 17, one end of the fixed shaft 18 is fixedly provided with a sub buckle 13, one end of the sub buckle 13 is fixedly provided with a moving shaft 12, one end of the moving shaft 12 is fixedly provided with a stop dog 10, the top end of the placing plate 21 is provided with a screw 8, the screw 8 penetrates through the placing plate 21 and extends to the inside of the cabin 4, the screw 8 is symmetrically distributed by the central axis of the placing plate 21, the circumferential side wall of the generator 9 is fixedly provided with a fixed plate 16, the fixed plate 16 is fixedly connected with a separation plate 20, the inner wall of the filter plate 6 is fixedly provided with a female buckle 14, the female buckle 14 is symmetrically distributed by the central axis of the filter plate 6, and the female buckle 14, the circumference lateral wall of removal axle 12 installs spring 11, the inner wall of filter 6 is provided with draw-in groove 19, just draw-in groove 19 and removal axle 12 phase-match.
The working process of the protective device for the wind driven generator comprises the following steps: when the device is used, the device is firstly installed through a base 1 and a tower frame 2, then the blade 3 rotates to generate electricity, the blade 3 rotates under the action of wind power, the kinetic energy of the wind is converted into mechanical energy, a generator 9 rotates to generate electricity under the driving of a wind wheel shaft, when the generator 9 needs to be taken down and cleaned, a handle 17 is pressed to enable a fixed shaft 18 to move and drive a son buckle 13 to move, so that the son buckle 13 is separated from a mother buckle 14, a compression spring 11 enables a moving shaft 12 to move and enter a clamping groove 19, then the handle 17 is lifted upwards, a stop block 10, the moving shaft 12 and the fixed shaft 18 all move upwards, so that filter plates 6 on the upper side and the lower side are separated, the filter plates 6 can be detached, an anticorrosive layer 7 and an isolating plate 20 are arranged inside, the generator 9 can be protected, the anticorrosive layer 7 and the isolating plate 20 are mutually attached to the inner walls of the filter plates 6, avoided generator 9 to stand for a long time and blown by wind and rain, the damage appears easily, has shortened generator 9's life, can relax simultaneously pull down filter 6, conveniently washs, has improved work efficiency.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.

Claims (8)

1. A protection device for a wind driven generator is characterized by comprising a filter plate (6), a stop block (10), a spring (11), a movable shaft (12), a handle (17) and a fixed shaft (18);
the filter plates (6) are arranged on the outer side of the generator (9), the filter plates (6) are of an open box structure, the openings of the two filter plates (6) are oppositely arranged, and the filter plates (6) on the upper side and the lower side surround the generator (9);
a handle (17) is arranged on the outer side wall of the upper side filter plate (6), a fixed shaft (18) is arranged on the handle (17), a blind hole is formed in the upper side filter plate (6), the fixed shaft (18) extends into the blind hole of the upper side filter plate (6), a stop block (10) is arranged at the bottom of the blind hole, a moving shaft (12) is arranged on the fixed shaft (18), a spring (11) is circumferentially arranged on the outer side of the moving shaft (12), one end of the spring (11) is fixedly connected with the stop block (10), the other end of the spring (11) is fixedly connected with the fixed shaft (18), a clamping groove (19) is formed in the bottom surface of the blind hole, and the moving shaft (12) penetrates through the stop block (10) to be in;
a sub-buckle (13) is arranged on the fixed shaft (18), the sub-buckle (13) extends out of the outer side wall of the upper filter plate (6), a female buckle (14) is arranged on the inner wall of the lower filter plate (6), and the female buckle (14) is clamped with the sub-buckle (13) for fixing; the lower side filter plate (6) is fixed on a placing plate (21) provided with a generator (9).
2. The protection device for the wind driven generator according to claim 1, characterized in that a separation plate (20) is arranged between the filter plate (6) and the generator (9), the separation plate (20) is of a box structure, and the generator (9) is arranged inside the separation plate (20).
3. The protection device for a wind power generator according to claim 1, characterized in that the inner wall of the insulation board (20) is provided with an anti-corrosion layer (7).
4. A wind power generator shield according to claim 3, wherein said corrosion protection layer (7) is an asphalt paint coating.
5. The protection device for the wind driven generator according to claim 1, further comprising a fixing plate (16), wherein one end of the fixing plate (16) is fixedly arranged on the isolation plate (20), and the fixing plate (16) is fixedly arranged on two circumferential sides of the generator (9).
6. The wind turbine according to claim 1, wherein the fixed shaft (18) is symmetrically arranged about the central axis of the handle (17).
7. A wind driven generator is characterized by comprising a base (1), a tower (2), blades (3), a cabin (4), a generator rotor (5), a generator (9), a cabin head (15), a placing plate (21) and a connecting shaft (22);
the wind power generation device is characterized in that a tower (2) is arranged on the base (1), a cabin (4) is arranged at the upper end of the tower (2), a cabin head (15) is arranged at one end of the cabin (4), a placing plate (21) is arranged inside the cabin (4), a generator (9) is arranged on the placing plate (21), a connecting shaft (22) is arranged at the power output end of the generator (9), a generator rotor (5) is circumferentially arranged on the side wall of one end of the connecting shaft (22), blades (3) are circumferentially arranged on the side wall of the other end of the connecting shaft (22), and the blades (3) penetrate through the cabin head (15);
the outer side of the generator (9) is provided with a protection device for a wind power generator according to any one of claims 1-6.
8. A wind power generator according to claim 7, characterised in that the placement plate (21) is fixed to the inner side wall of the nacelle (4) by means of screws (8).
CN202110475307.7A 2021-04-29 2021-04-29 Protection device for aerogenerator and aerogenerator Pending CN113090476A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202110475307.7A CN113090476A (en) 2021-04-29 2021-04-29 Protection device for aerogenerator and aerogenerator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202110475307.7A CN113090476A (en) 2021-04-29 2021-04-29 Protection device for aerogenerator and aerogenerator

Publications (1)

Publication Number Publication Date
CN113090476A true CN113090476A (en) 2021-07-09

Family

ID=76680666

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202110475307.7A Pending CN113090476A (en) 2021-04-29 2021-04-29 Protection device for aerogenerator and aerogenerator

Country Status (1)

Country Link
CN (1) CN113090476A (en)

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