CN110164636B - Electric insulator forming machine - Google Patents
Electric insulator forming machine Download PDFInfo
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- CN110164636B CN110164636B CN201910574483.9A CN201910574483A CN110164636B CN 110164636 B CN110164636 B CN 110164636B CN 201910574483 A CN201910574483 A CN 201910574483A CN 110164636 B CN110164636 B CN 110164636B
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B19/00—Apparatus or processes specially adapted for manufacturing insulators or insulating bodies
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- Press-Shaping Or Shaping Using Conveyers (AREA)
- Insulating Bodies (AREA)
Abstract
the invention provides an electric insulator forming machine which comprises a working frame, an auxiliary device and an execution device, wherein the working frame is provided with a first working platform and a second working platform; the lower end of the working frame is provided with an auxiliary device, and the upper end of the working frame is provided with an executing device; the working frame and the auxiliary device are in bilateral symmetry structure; the invention can solve the problem that the production efficiency is low because a plurality of insulators are formed by pressing and then are connected to a metal component rod one by adopting a firing machine for firing and forming through manual pressing; on the other hand, the shapes and sizes of the single insulators are different due to manual pressing and molding, and the compaction tightness of each insulator is not well controlled due to manual molding, so that the inner parts of the insulators are easy to loosen and fall off during fluffy firing.
Description
Technical Field
The invention relates to the technical field of electric power facilities, in particular to an electric power insulator forming machine.
Background
Insulators are devices that are mounted between conductors of different potentials or between a conductor and a ground potential member and are able to withstand the effects of voltage and mechanical stress. The insulating control is a special insulating control and can play an important role in an overhead transmission line. Early-year insulators are mostly used for telegraph poles, and a plurality of disc-shaped insulators are hung at one end of a high-voltage wire connecting tower which is gradually developed, are used for increasing creepage distance and are usually made of glass or ceramics, namely insulators.
The insulator is molded by glass or ceramic in production and then is molded by high-temperature firing; because the existing high-altitude power transmission lines are multiple and complicated, a plurality of independent insulators are connected on one metal component rod in series, and the complexity of the lines is mainly adapted, but in some small production workshops, the insulator is mainly formed by manual pressing in the early stage, and the manual pressing needs to connect a plurality of insulators to one metal component rod one by one after the insulator is formed by pressing and then fire and form the insulators by firing machinery, so that the production efficiency is low; on the other hand, the shapes and sizes of the single insulators are different due to manual pressing and molding, and the compaction tightness of each insulator is not well controlled due to manual molding, so that part of the interior of the insulator is easy to loosen and fall off during fluffy firing.
Disclosure of Invention
Technical problem to be solved
The invention can solve the problem that the production efficiency is low because a plurality of insulators are formed by pressing and then are connected to a metal component rod one by adopting a firing machine for firing and forming through manual pressing; on the other hand, the shapes and sizes of the single insulators are different due to manual pressing and molding, and the compaction tightness of each insulator is not well controlled due to manual molding, so that the inner parts of the insulators are easy to loosen and fall off during fluffy firing.
(II) technical scheme
In order to achieve the purpose, the invention adopts the following technical scheme that the electric insulator forming machine comprises a working frame, an auxiliary device and an execution device; the lower end of the working frame is provided with an auxiliary device, and the upper end of the working frame is provided with an executing device; the working frame and the auxiliary device are in bilateral symmetry structure; wherein:
the executing device comprises a support, a driving motor, a driving screw rod, a transmission disc, a transmission belt, an executing frame, a shaping unit and a fixing unit; the number of the supports is three, and the supports are arranged on the working frame; the driving motor is installed at the upper end of the working frame through a motor base, an output shaft of the driving motor is connected to a shaft head at one end of a driving screw rod through a coupling, a shaft head at the other end of the driving screw rod is installed on one support through a bearing, the driving screw rods are installed between the other two supports through bearings, the number of the driving screw rods is two, transmission discs are respectively arranged on the outer walls of one side of each of the two driving screw rods, and the two transmission discs are connected through a transmission belt; two actuating frames are arranged on the two driving screw rods in a threaded connection mode; the upper end of the execution frame is provided with a plurality of shaping units in a sliding fit mode, and the shaping units and the execution frame are fixed through bolts; the fixing units are symmetrically arranged on the outer walls of the upper ends of the working frames at two sides of the driving screw rod; fixing the metal member rod by the fixing unit, and passing the metal member rod through the auxiliary unit at a proper position inside the storage box by the movement of the electric slider; and the two shaping units are driven to mutually approach and close until the shaping units are butted and shaped by the work of the driving motor.
The shaping unit comprises an adjusting frame, a propelling cylinder, a spherical outer die and an inner shaping sleeve; the adjusting frame is provided with a spherical outer die, the adjusting frame is provided with a propulsion cylinder, and the top end of the propulsion cylinder penetrates through the spherical outer die and is connected to the inner shaping sleeve; the spherical outer die is a hemispherical shell, and an inner shaping sleeve is arranged inside the spherical outer die in a sliding fit manner; the cutting opening of the outer wall of the spherical outer die is uniformly provided with balls; the spherical outer mold is provided with a semicircular through hole, and a ball is arranged in the through hole; the two spherical outer molds are closed through mutual movement, so that clay and other materials in the spherical outer molds are molded into a spherical shape through extrusion, and then the molded insulators in the spherical outer molds are extruded into circumferential grooves through the action of the inner molding sleeves under the action of the propelling cylinders, so that the later-stage top fixing of the conveying line is facilitated; the moulding unit that sets up is through receiving the inside materials such as clay of deposit case and forming the spheroid structure according to the inside cavity structure of spherical external mold through mechanical extrusion, and the overall structure performance that can strengthen the insulator is extruded through the secondary motion of moulding cover in again, guarantees to compact each other between the clay that it was moulded, has guaranteed that the insulator of moulding can not take place loosely in the firing in later stage.
The fixing unit comprises a fixing frame, an electric sliding block, an outer cylinder sleeve, a compression spring and a fixing sleeve; an electric sliding block is arranged on the fixed frame in a sliding fit mode, an outer cylinder sleeve is arranged on the electric sliding block, a compression spring is arranged inside the outer cylinder sleeve, and a fixed sleeve is arranged inside the outer cylinder sleeve in a sliding fit mode; insert two fixed cover insides with the metal component pole, pass through the auxiliary unit who receives on the deposit box through electronic slider drive metal component pole and get into and receive inside the deposit box, the moulding of the insulator of being convenient for.
the auxiliary device comprises an auxiliary cylinder, a storage box, a sealing unit and an auxiliary unit; the auxiliary cylinders are symmetrically arranged on the working frame, the top ends of the two auxiliary cylinders are connected with a storage box through flanges, the front outer side and the rear outer side of the storage box are provided with movable cavities, and a plurality of sealing units are uniformly arranged in the movable cavities; the sealing units are connected with each other in a sliding fit manner; auxiliary cavities are arranged on the left outer side and the right outer side of the storage box, a plurality of auxiliary units are uniformly arranged in the auxiliary cavities, and the auxiliary units are mutually connected in a sliding fit mode; the insulator can be conveniently molded by the molding unit through putting materials such as clay and the like needing to be molded into the storage box.
the auxiliary unit comprises an auxiliary spring and an auxiliary block, and the auxiliary spring is connected with the auxiliary block.
Preferably; the sealing unit comprises a telescopic spring and a sealing sliding block; the telescopic spring is connected with a sealing sliding block; the sealing sliding block is of an arc-shaped structure; the arranged arc-shaped sealing sliding block is convenient for the spherical outer die to push the sealing sliding block away, so that the spherical outer die penetrates through the sealing sliding block to enter the storage box.
preferably; threads with opposite rotation directions are uniformly arranged on the outer wall of the driving screw rod; the threads with opposite rotation directions are convenient to adopt a drive to control the shaping units on the two sides to feed simultaneously; the outer wall of the insulator is ensured to be uniform and smooth.
Preferably; scales are uniformly marked on the outer wall of the upper end of the execution frame; the scales are arranged so as to facilitate adjustment of the distance between adjacent shaping units and control of the distance between adjacent insulators on the shaped metal member rod.
Preferably; one end of the fixed sleeve is of a cavity structure, a fixed sucker is arranged in a cavity in the fixed sleeve, and rubber balls are uniformly arranged on the outer wall of the cavity in the fixed sleeve; a fixed sucker is arranged in a cavity structure at one end of the fixed sleeve, so that two ends of the metal component rod can be fixed conveniently, and rubber balls are uniformly arranged on the outer wall of the inner cavity of the fixed sleeve, so that the metal component rod can be fixed conveniently, and the metal component rod is guaranteed not to shake when an insulator is molded on the metal component rod; the molding quality of the insulator is ensured.
(III) advantageous effects
1. according to the shaping unit, clay and other materials in the storage box are mechanically extruded to form a spherical structure according to the cavity structure in the spherical outer die, and the integral structural performance of the insulator can be enhanced through secondary motion extrusion of the inner shaping sleeve, so that the shaped clay is guaranteed to be compact, and the shaped insulator is guaranteed not to be loose in later firing; meanwhile, the plurality of shaping units work simultaneously, so that the production efficiency of the insulator is improved;
2. The arc-shaped sealing sliding block is convenient for the spherical outer die to push the sealing sliding block away, so that the spherical outer die penetrates through the sealing sliding block and enters the storage box;
3. The fixed sucker is arranged in the cavity structure at one end of the fixed sleeve, so that two ends of the metal component rod can be fixed conveniently, and meanwhile, the rubber balls are uniformly arranged on the outer wall of the inner cavity of the fixed sleeve, so that the metal component rod can be fixed conveniently, and the metal component rod is guaranteed not to shake when an insulator is molded on the metal component rod; the molding quality of the insulator is ensured;
4. The scales are arranged on the execution frame, so that the distance between the adjacent shaping units can be conveniently adjusted, and the distance between the adjacent insulators on the shaped metal member rod can be conveniently controlled.
drawings
the invention is further illustrated with reference to the following figures and examples.
FIG. 1 is a schematic perspective view of the present invention;
FIG. 2 is a front elevation sectional view of the present invention in FIG. 1;
FIG. 3 is a side sectional view of the invention in the FIG. 1 position;
Fig. 4 is a partial structural sectional view of the inventive work frame and auxiliary device.
Detailed Description
Embodiments of the present invention will be described below with reference to the drawings. In this process, the width of the lines or the size of the components in the drawings may be exaggerated for clarity and convenience of description.
The following terms are defined based on the functions of the present invention, and may be different depending on the intention of the user or the operator or the convention. Therefore, these terms are defined based on the entire contents of the present specification.
As shown in fig. 1 to 4, an electric insulator forming machine includes a working frame 1, an auxiliary device 2 and an executing device 3; the lower end of the working frame 1 is provided with an auxiliary device 2, and the upper end of the working frame 1 is provided with an executing device 3; the working frame 1 and the auxiliary device 2 are in bilateral symmetry structure; wherein:
The executing device 3 comprises a support 31, a driving motor 32, a driving screw 33, a transmission disc 34, a transmission belt 35, an executing frame 36, a shaping unit 37 and a fixing unit 38; the number of the supports 31 is three, and the supports 31 are arranged on the working frame 1; the driving motor 32 is installed at the upper end of the working frame 1 through a motor base, an output shaft of the driving motor 32 is connected to a shaft head at one end of a driving screw 33 through a coupling, a shaft head at the other end of the driving screw 33 is installed on one support 31 through a bearing, the driving screw 33 is installed between the other two supports 31 through a bearing, the number of the driving screws 33 is two, and threads with opposite rotation directions are uniformly arranged on the outer wall of the driving screw 33; the provision of threads of opposite handedness facilitates the use of a drive to control the simultaneous feeding of the shaping units 37 on both sides; the outer wall of the insulator is ensured to be uniform and smooth; the outer walls of one sides of the two driving screw rods 33 are respectively provided with a driving disc 34, and the two driving discs 34 are connected through a driving belt 35; two actuating frames 36 are arranged on the two driving screw rods 33 in a threaded connection mode; the upper end of the execution frame 36 is provided with a plurality of shaping units 37 in a sliding fit mode, and the shaping units 37 and the execution frame 36 are fixed through bolts; scales are uniformly marked on the outer wall of the upper end of the execution frame 36; the scales are provided to facilitate adjustment of the distance between adjacent shaping units 37 and to facilitate control of the distance between adjacent insulators on the shaped metal member rod; the fixing units 38 are symmetrically arranged on the outer walls of the upper ends of the working frames 1 at two sides of the driving screw rod 33; the metal member bar is fixed by the fixing unit 38 and passes through the auxiliary unit 24 at a proper position inside the storage box 22 by the movement of the electric slider 382; and the two shaping units 37 are driven to close to each other by the operation of the driving motor 32 until the shaping is collided.
The shaping unit 37 comprises an adjusting frame 371, a propelling cylinder 372, a spherical outer die 373 and an inner shaping sleeve 374; the adjusting frame 371 is provided with a spherical outer die 373, the adjusting frame 371 is provided with a propulsion cylinder 372, and the top end of the propulsion cylinder 372 penetrates through the spherical outer die 373 to be connected to the inner shaping sleeve 374; the spherical outer die 373 is a hemispherical shell, and an inner shaping sleeve 374 is arranged inside the spherical outer die 373 in a sliding fit manner; the cut of the outer wall of the spherical outer die 373 is uniformly provided with balls; the spherical outer die 373 is provided with a semicircular through hole, and a ball is arranged in the through hole; the two spherical outer dies 373 are closed by mutual movement, so that materials such as clay and the like in the spherical outer dies are molded into a spherical shape through extrusion, and then the molded insulators in the spherical outer dies 373 are extruded into circumferential grooves through the action of the inner molding sleeve 374 through the action of the propulsion cylinder 372, so that the later-stage fixed jacking of the conveying line is facilitated; the shaping unit 37 that sets up forms the spheroid structure according to the inside cavity structure of spherical external mold 373 through mechanical extrusion with receiving the materials such as the inside clay of case 22, and the rethread shaping cover 374 moves once more and extrudes and can strengthen the overall structure performance of insulator, guarantees to be compact each other between the clay that it was moulded, has guaranteed that the insulator of moulding can not take place loosely in the firing of later stage.
The fixing unit 38 comprises a fixing frame 381, an electric slider 382, an outer sleeve 383, a compression spring 384 and a fixing sleeve 385; the fixing frame 381 is provided with an electric slide block 382 in a sliding fit mode, the electric slide block 382 is provided with an outer cylinder sleeve 383, a compression spring 384 is arranged inside the outer cylinder sleeve 383, and a fixing sleeve 385 is arranged inside the outer cylinder sleeve 383 in a sliding fit mode; one end of the fixed sleeve 385 is of a cavity structure, a fixed sucker is arranged in the cavity inside the fixed sleeve 385, and rubber balls are uniformly arranged on the outer wall of the cavity inside the fixed sleeve 385; the metal member rod is inserted into the two fixed sleeves 385, and the electric slider 382 drives the metal member rod to pass through the auxiliary unit 24 on the storage box 22 and enter the storage box 22, so that the insulator can be conveniently molded; a fixed sucker is arranged in a cavity structure at one end of the fixed sleeve 385 to fix two ends of the metal component rod, and rubber balls are uniformly arranged on the outer wall of the inner cavity of the fixed sleeve to fix the metal component rod, so that the metal component rod is prevented from shaking when an insulator is molded on the metal component rod; the molding quality of the insulator is ensured.
the auxiliary device 2 comprises an auxiliary cylinder 21, a storage box 22, a sealing unit 23 and an auxiliary unit 24; the auxiliary cylinders 21 are symmetrically arranged on the working frame 1, the top ends of the two auxiliary cylinders 21 are connected with a storage box 22 through flanges, movable cavities are arranged on the front outer side and the rear outer side of the storage box 22, and a plurality of sealing units 23 are uniformly arranged in the movable cavities; the sealing units 23 are connected with each other in a sliding fit manner; auxiliary cavities are arranged on the left outer side and the right outer side of the storage box 22, a plurality of auxiliary units 24 are uniformly arranged in the auxiliary cavities, and the auxiliary units 24 are mutually connected in a sliding fit mode; the sealing unit 23 comprises a telescopic spring 231 and a sealing slider 232; the telescopic spring 231 is connected with a sealing sliding block 232; the sealing sliding block 232 is of an arc-shaped structure; the arranged arc-shaped structure sealing slide block 232 is convenient for the spherical outer die 373 to push the sealing slide block so that the spherical outer die 373 penetrates through the sealing slide block 232 to enter the storage box 22; the auxiliary unit 24 includes an auxiliary spring 241 and an auxiliary block 242, and the auxiliary spring 241 is connected with the auxiliary block 242.
When in work; firstly, clay and other materials to be molded are put into the storage box 22; then the distance between two adjacent shaping units 37 is adjusted; the deposit box 22 is pushed up to a proper position by the auxiliary cylinder 21; then, the metal member rod is manually inserted into the two fixing sleeves 385, and the electric slider 382 drives the metal member rod to pass through the auxiliary unit 24 on the storage box 22 and enter the storage box 22; then, the driving motor 32 works to drive the two opposite shaping units 37 to enter the storage box 22 through the sealing slide block 232 and to approach each other to be closed through the mutual movement of the two spherical outer dies 373, so that materials such as clay and the like in the storage box are molded into a spherical shape through extrusion, and then the shaping insulators in the spherical outer dies 373 are extruded into circumferential grooves through the action of the inner shaping sleeve 374 through the action of the propulsion cylinder 372; after the completion, the driving motor 32 works reversely to drive the spherical outer die 373 to be separated from the molded insulator, and the insulator is taken down and then is fired and molded at a later stage.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (8)
1. An electric insulator forming machine comprises a working frame (1), an auxiliary device (2) and an execution device (3); the method is characterized in that: the lower end of the working frame (1) is provided with an auxiliary device (2), and the upper end of the working frame (1) is provided with an execution device (3); the working frame (1) and the auxiliary device (2) are in bilateral symmetry structure; wherein:
the executing device (3) comprises a support (31), a driving motor (32), a driving lead screw (33), a driving disc (34), a driving belt (35), an executing frame (36), a shaping unit (37) and a fixing unit (38); the number of the supports (31) is three, and the supports (31) are arranged on the working frame (1); the driving motor (32) is installed at the upper end of the working frame (1) through a motor base, an output shaft of the driving motor (32) is connected to a shaft head at one end of a driving lead screw (33) through a coupling, a shaft head at the other end of the driving lead screw (33) is installed on one support (31) through a bearing, the driving lead screws (33) are installed between the other two supports (31) through bearings, the number of the driving lead screws (33) is two, the outer walls of one sides of the two driving lead screws (33) are respectively provided with a transmission disc (34), and the two transmission discs (34) are connected through a transmission belt (35); two actuating frames (36) are arranged on the two driving screw rods (33) in a threaded connection mode; the upper end of the execution frame (36) is provided with a plurality of shaping units (37) in a sliding fit mode, and the shaping units (37) and the execution frame (36) are fixed through bolts; the fixing units (38) are symmetrically arranged on the outer walls of the upper ends of the working frames (1) at two sides of the driving screw rod (33);
The shaping unit (37) comprises an adjusting frame (371), a propelling cylinder (372), a spherical outer die (373) and an inner shaping sleeve (374); the adjusting frame (371) is provided with a spherical outer die (373), the adjusting frame (371) is provided with a propulsion cylinder (372), and the top end of the propulsion cylinder (372) penetrates through the spherical outer die (373) to be connected onto an inner shaping sleeve (374); the spherical outer die (373) is a hemispherical shell, and an inner shaping sleeve (374) is installed inside the spherical outer die (373) in a sliding fit mode; the cutting opening of the outer wall of the spherical outer die (373) is uniformly provided with balls; the spherical outer die (373) is provided with a semicircular through hole, and a ball is arranged in the through hole.
2. An electric insulator moulding machine according to claim 1, characterised in that: the fixing unit (38) comprises a fixing frame (381), an electric slider (382), an outer sleeve (383), a compression spring (384) and a fixing sleeve (385); the fixing frame (381) is provided with an electric sliding block (382) in a sliding fit mode, the electric sliding block (382) is provided with an outer cylinder sleeve (383), a compression spring (384) is arranged inside the outer cylinder sleeve (383), and a fixing sleeve (385) is arranged inside the outer cylinder sleeve (383) in a sliding fit mode.
3. An electric insulator moulding machine according to claim 1, characterised in that: the auxiliary device (2) comprises an auxiliary cylinder (21), a storage box (22), a sealing unit (23) and an auxiliary unit (24); the auxiliary cylinders (21) are symmetrically arranged on the working frame (1), the top ends of the two auxiliary cylinders (21) are connected with a storage box (22) through flanges, the front outer side and the rear outer side of the storage box (22) are provided with movable cavities, and a plurality of sealing units (23) are uniformly arranged in the movable cavities; the sealing units (23) are connected with each other in a sliding fit manner; receive and deposit case (22) left and right sides outside and be provided with supplementary chamber, evenly be provided with a plurality of auxiliary units (24) in the supplementary chamber, auxiliary unit (24) between through sliding fit mode interconnect.
4. An electric insulator moulding machine according to claim 3, characterised in that: the sealing unit (23) comprises a telescopic spring (231) and a sealing slide block (232); the telescopic spring (231) is connected with a sealing sliding block (232); the sealing sliding block (232) is of an arc-shaped structure.
5. An electric insulator moulding machine according to claim 3, characterised in that: the auxiliary unit (24) comprises an auxiliary spring (241) and an auxiliary block (242), wherein the auxiliary spring (241) is connected with the auxiliary block (242).
6. An electric insulator moulding machine according to claim 1, characterised in that: and the outer wall of the driving screw rod (33) is uniformly provided with threads with opposite rotation directions.
7. An electric insulator moulding machine according to claim 1, characterised in that: the outer wall of the upper end of the execution frame (36) is evenly marked with scales.
8. An electric insulator moulding machine according to claim 2, characterised in that: one end of the fixed sleeve (385) is of a cavity structure, a fixed sucker is arranged in the cavity inside the fixed sleeve (385), and rubber balls are uniformly arranged on the outer wall of the cavity inside the fixed sleeve (385).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910574483.9A CN110164636B (en) | 2019-06-28 | 2019-06-28 | Electric insulator forming machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910574483.9A CN110164636B (en) | 2019-06-28 | 2019-06-28 | Electric insulator forming machine |
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| Publication Number | Publication Date |
|---|---|
| CN110164636A CN110164636A (en) | 2019-08-23 |
| CN110164636B true CN110164636B (en) | 2019-12-13 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910574483.9A Active CN110164636B (en) | 2019-06-28 | 2019-06-28 | Electric insulator forming machine |
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| CN (1) | CN110164636B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111844415B (en) * | 2020-07-25 | 2022-04-05 | 江苏范特希包装新材料有限公司 | Electric power insulator preparation mould |
| CN112331431B (en) * | 2020-11-30 | 2023-05-16 | 湖南高强电瓷电器有限公司 | Ceramic insulator processing line |
| CN112606173A (en) * | 2020-12-10 | 2021-04-06 | 江西高能陶瓷设备制造有限公司 | Pretreatment device for vacuum movable insulator mud blank |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP6470587B2 (en) * | 2015-02-20 | 2019-02-13 | 日本碍子株式会社 | Cutting method of thick wall pipe |
| CN107856222B (en) * | 2017-11-02 | 2020-08-14 | 江苏华淼电子科技有限公司 | Retired composite insulator silica gel layer recovery device |
| CN207441372U (en) * | 2017-12-05 | 2018-06-01 | 江西省星海电瓷制造有限公司 | A kind of high-voltage porcelain insulator automated production equipment |
| CN207867983U (en) * | 2018-01-03 | 2018-09-14 | 萍乡市锦宏瓷业有限公司 | A kind of electric power network system overhead transmission line umbrella disc insulator molding machine |
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Effective date of registration: 20191121 Address after: 510080 Dongfeng East Road, Dongfeng, Guangdong, Guangzhou, Zhejiang Province, No. 8 Applicant after: ELECTRIC POWER RESEARCH INSTITUTE, GUANGDONG POWER GRID CO., LTD. Address before: 317000 Baixi Road, Baishuiyang Town, Linhai City, Taizhou City, Zhejiang Province Applicant before: Ni Minyue |
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