CN113878280A - Welding deformation preventing device for large megawatt rotor room cone - Google Patents
Welding deformation preventing device for large megawatt rotor room cone Download PDFInfo
- Publication number
- CN113878280A CN113878280A CN202111106372.9A CN202111106372A CN113878280A CN 113878280 A CN113878280 A CN 113878280A CN 202111106372 A CN202111106372 A CN 202111106372A CN 113878280 A CN113878280 A CN 113878280A
- Authority
- CN
- China
- Prior art keywords
- cone
- ring flange
- plate
- flange
- wedge
- 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.)
- Granted
Links
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K37/00—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups
- B23K37/04—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups for holding or positioning work
- B23K37/0426—Fixtures for other work
- B23K37/0435—Clamps
- B23K37/0443—Jigs
-
- 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
Landscapes
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Butt Welding And Welding Of Specific Article (AREA)
Abstract
The invention discloses a welding deformation prevention device for a large megawatt rotor room cone, which comprises an upper pressing body, a lower supporting body, a plurality of inner supporting frames and a plurality of outer supporting frames, wherein the upper pressing body is arranged on the lower supporting body, the cone is arranged between the upper pressing body and the lower supporting body, the inner supporting frames are uniformly arranged on the inner ring of the cone at intervals, and the outer supporting frames are uniformly arranged on the outer ring of the cone at intervals; the ring flange is arranged on the winding edge of the inner ring of the cone, and the upper surface and the lower surface of the ring flange close to the inner ring edge of the cone are respectively fixedly connected with a flange reinforcing ring. The invention is particularly suitable for the assembly and welding of the large-megawatt rotor room cone, can effectively prevent the deformation of the large-volume cone and the flange plate caused by welding stress during welding while ensuring the assembly efficiency and the welding efficiency, and improves the welding yield of weldments.
Description
Technical Field
The invention relates to the field of welding of large megawatt rotor room cones, in particular to a welding deformation preventing device for a large megawatt rotor room cone.
Background
When the rotor room cone and the flange plate are welded, a welding tool is needed. In the welding process of the existing welding tool, because the cone is too large in size, particularly for the cone of a large megawatt rotor room with the power of more than 10MW, the size is larger, and the welding seam between the cone and a flange plate is required to be long, great welding stress can be generated. If the cone and the flange plate are not subjected to welding deformation control, the cone can deform, and additional shaping is needed in the later period, so that the overall machining efficiency of the rotor room is low, and even the deformation caused by welding stress in the welding process can cause the whole weldment to be scrapped, thereby causing great cost loss.
Disclosure of Invention
In order to overcome the defects, the invention provides a welding deformation preventing device for a large megawatt rotor cube.
A welding deformation prevention device for a large megawatt rotor room cone comprises an upper pressing body, a lower supporting body, a plurality of inner supporting frames and a plurality of outer supporting frames, wherein the upper pressing body is arranged on the lower supporting body, a cone is arranged between the upper pressing body and the lower supporting body, the inner supporting frames are uniformly arranged on the inner ring of the cone at intervals, and the outer supporting frames are uniformly arranged on the outer ring of the cone at intervals; the upper press fit body comprises a first outer ring flange and a first inner ring flange, a plurality of first wedge-shaped plates are uniformly and fixedly connected between the first outer ring flange and the first inner ring flange around the circumference, and a first reinforcing rib plate is fixedly connected between every two adjacent first wedge-shaped plates; the lower supporting body comprises a second outer ring flange and a second inner ring flange, a plurality of second wedge-shaped plates corresponding to the first wedge-shaped plates are fixedly connected between the second outer ring flange and the second inner ring flange, and a second reinforcing rib plate is fixedly connected between every two adjacent second wedge-shaped plates; the tops of the first outer ring flange and the first inner ring flange are fixedly connected with a plurality of welding lathe plates around the circumference; the ring flange is arranged on the winding edge of the inner ring of the cone, and the upper surface and the lower surface of the ring flange close to the inner ring edge of the cone are respectively fixedly connected with a flange reinforcing ring; the outer support frame comprises a first support rod and a first support plate, one end of the first support plate is fixedly connected with the first support rod, and the other end of the first support plate is contacted with the welding carriage plate; the inner supporting frame comprises a second supporting rod, a third supporting rod and a second supporting plate, one end of the second supporting plate is fixedly connected with the second supporting rod, the other end of the second supporting plate is in contact with the top surface of the flange, the third supporting rod directly supports the bottom surface of the flange, and screw holes are formed in the first supporting plate and the second supporting plate.
According to a preferred embodiment of the present invention, the height of the first outer ring flange is greater than the height of the second outer ring flange, and the height of the second inner ring flange is greater than the height of the first inner ring flange, but the sum of the heights of the first outer ring flange and the second outer ring flange is the same as the sum of the heights of the second inner ring flange and the first inner ring flange.
According to a preferable scheme of the invention, the slopes of the inclined edges of the first wedge-shaped plate and the second wedge-shaped plate are the same in size and opposite in direction.
According to a preferable scheme of the invention, a plurality of lifting lugs are uniformly fixed on the first outer ring flange and the second outer ring flange.
According to a preferable scheme of the invention, a screw is arranged in the screw hole.
According to a preferable scheme of the invention, through holes are formed in the surfaces of the second wedge-shaped plate and the second reinforcing rib class.
According to a preferable scheme of the invention, the bevel edge of the second wedge-shaped plate is matched with the inner surface of the cone, and the bevel edge of the first wedge-shaped plate is matched with the outer surface of the cone
The invention has the beneficial effects that:
the cone-welded flange plate is also fixed in a contact manner by arranging the upper pressing body and the lower supporting body, so that the assembly efficiency and the welding efficiency are ensured, the deformation of the cone and the flange plate caused by welding stress during welding can be effectively prevented, and the welding yield of a weldment is improved. Particularly, for the cone welding of a large megawatt rotor house, the one-time qualified rate of the welding line is more than 98 percent after the welding line welding method is adopted. And because the deformation can not be generated, the shaping step is saved, and the processing efficiency of the whole rotor house is further improved.
Drawings
The invention will now be described, by way of example, with reference to the accompanying drawings, in which:
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a top view of the present invention;
FIG. 3 is a sectional view taken along line A of FIG. 2;
wherein: the upper press fit body 1, the lower support body 2, the cone 3, the first support rod 4, the first support plate 5, the screw hole 6, the lifting lug 7, the welding lathe plate 8, the outer support frame 9, the third support rod 10, the second support rod 11, the second support plate 12, the flange reinforcing ring 13, the flange plate 14, the inner support frame 15, the second outer ring flange 16, the first outer ring flange 17, the second wedge-shaped plate 18, the second inner ring flange 19, the first inner ring flange 20, the first wedge-shaped plate 21, the through hole 22 and the second reinforcing rib plate 23.
Detailed Description
The present invention will now be described in further detail with reference to the accompanying drawings. The drawings are simplified schematic views illustrating only the basic structure of the present invention in a schematic manner, and thus show only the constitution related to the present invention.
In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front", "rear", "both ends", "one end", "the other end", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be configured in a specific orientation, and operate, and thus, should not be construed as limiting the present invention.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "connected," and the like are to be construed broadly, such as "connected," which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; the two components can be directly connected or indirectly connected through an intermediate medium, the two components can be communicated with each other, the fixed connection can be welding, gluing and the like, and the specific meaning of the terms in the invention can be understood by those skilled in the art according to specific situations.
The welding deformation preventing device for the large megawatt rotor room cone body shown in fig. 1-3 comprises an upper pressing body 1, a lower supporting body 2, a plurality of inner supporting frames 15 and a plurality of outer supporting frames 9, wherein the upper pressing body 1 is arranged on the lower supporting body 2, the cone body 3 is arranged between the upper pressing body 1 and the lower supporting body 2, the inner supporting frames 15 are uniformly arranged at the inner ring of the cone body 3 at intervals, and the outer supporting frames 9 are uniformly arranged at the outer ring of the cone body 3 at intervals; the cone 3 can improve the assembly speed and the welding efficiency through the matching of all parts of the upper pressing body 1, the lower supporting body 2, the outer supporting frame 9 and the inner supporting frame 15, and can control the deformation of the cone 3 and the flange 14 during welding even if the cone is large in size through the supporting and the binding pressing of all parts, so that the welding precision of a weldment is improved.
The upper press fit body 1 comprises a first outer ring flange 17 and a first inner ring flange 20, a plurality of first wedge-shaped plates 21 are uniformly and fixedly connected between the first outer ring flange 17 and the first inner ring flange 20 around the circumference, and a first reinforcing rib plate is fixedly connected between every two adjacent first wedge-shaped plates 21; the lower support body 2 comprises a second outer ring flange 16 and a second inner ring flange 19, a plurality of second wedge-shaped plates 18 corresponding to the first wedge-shaped plates 21 are fixedly connected between the second outer ring flange 16 and the second inner ring flange 19, and a second reinforcing rib plate 23 is fixedly connected between every two adjacent second wedge-shaped plates 18; the cone 3 is placed on the lower support body 2, the oblique edge of the second wedge-shaped plate 18 is matched with the inner surface of the cone 3, the inner surface of the cone 3 is supported through the second wedge-shaped plate 18, and the supporting strength of the second wedge-shaped plate 18 is improved through the second reinforcing rib plate; after the placing is finished, the upper pressing body 1 is covered, the bevel edge of the first wedge-shaped plate 21 is matched with the outer surface of the cone 3, the outer surface of the cone 3 is pressed through the first wedge-shaped plate 21, and the pressing strength of the first wedge-shaped plate 21 is improved through the first reinforcing rib plate; therefore, the deformation generated when the cone 3 is welded again can be controlled through the upper press body 1 and the lower support body 2.
The tops of the first outer ring flange 17 and the first inner ring flange 20 are also fixedly connected with a plurality of welding lathe plates 8 around the circumference; the welding trolley is arranged on the welding trolley plate 8, and then the welding trolley can be arranged on the welding trolley plate 8, so that the welding efficiency of the cone 3 is improved.
A flange plate 14 is arranged on the winding edge of the inner ring of the cone 3, and the upper surface and the lower surface of the flange plate 14 close to the inner ring edge of the cone 3 are respectively fixedly connected with a flange reinforcing ring 13; through setting up ring flange 14 and flange reinforcing ring 13, can play good support effect to ring flange 14, and then with last pressfitting body 1 and under bracing body 2 cooperation back, the deformation of control cone 3 and ring flange 14 when the welding improves the welding precision of weldment.
The outer support frame 9 comprises a first support rod 4 and a first support plate 5, one end of the first support plate 5 is fixedly connected with the first support rod 4, and the other end of the first support plate 5 is contacted with the welding vehicle plate 8; the outer supporting frame 9 is arranged, so that the upper pressing body 1 and the lower supporting body 2 can be combined more tightly, and the cone 3 is prevented from deforming during welding.
The inner support frame 15 comprises a second support rod 11, a third support rod 10 and a second support plate 12, one end of the second support plate 12 is fixedly connected with the second support rod 11, the other end of the second support plate is contacted with the top surface of the flange 14, the third support rod 10 directly supports the bottom surface of the flange 14, and the first support plate 5 and the second support plate 12 are both provided with screw holes 6; the inner support frame 15 is arranged for preventing the deformation of the inner circle edge of the cone 3 caused by the movement of the flange plate 14; the screw holes 6 of the outer support frame 9 and the inner support frame 15 are internally provided with screws, so that the tightness of the combination of the upper pressing body 1 and the lower support body 2 can be adjusted by screwing the screws, and the flange 14 can be better fixed.
The height of the first outer ring flange 17 is greater than that of the second outer ring flange 16, the height of the second inner ring flange 19 is greater than that of the first inner ring flange 20, but the sum of the heights of the first outer ring flange 17 and the second outer ring flange 16 is the same as the sum of the heights of the second inner ring flange 19 and the first inner ring flange 20; and then can guarantee that last pressfitting body 1 and lower supporter 2 can closely combine, play fine support and prevent that the cone 3 warp when welding to cone 3.
The slopes of the inclined edges of the first wedge-shaped plate 21 and the second wedge-shaped plate 18 are the same in size and opposite in direction; and then can adapt cone 3, prevent that cone 3 warp when welding.
A plurality of lifting lugs 7 are uniformly fixed on the first outer ring flange 17 and the second outer ring flange 16, and the lifting lugs 7 are convenient to mount and dismount.
Through holes 22 are formed in the surfaces of the second wedge-shaped plate 18 and the second reinforcing rib class; due to the fact that the cone 3 is too heavy, the cone is placed on the lower supporting body 2, after the through holes 22 are formed, stress release can be better conducted on the second wedge-shaped plate 18 and the second reinforcing rib plate 23, and breakage caused by stress concentration is prevented.
In light of the foregoing, it is to be understood that various changes and modifications may be made by those skilled in the art without departing from the spirit and scope of the invention. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.
Claims (7)
1. The utility model provides a device of welding deformation is prevented to big megawatt rotor room cone which characterized in that: the device comprises an upper pressure combination body (1), a lower support body (2), a plurality of inner support frames (15) and a plurality of outer support frames (9), wherein the upper pressure combination body (1) is arranged on the lower support body (2), a cone (3) is arranged between the upper pressure combination body and the lower support body (2), the inner support frames (15) are uniformly arranged at the inner ring of the cone (3) at intervals, and the outer support frames (9) are uniformly arranged at the outer ring of the cone (3) at intervals; the upper pressing body (1) comprises a first outer ring flange (17) and a first inner ring flange (20), a plurality of first wedge-shaped plates (21) are uniformly and fixedly connected between the first outer ring flange (17) and the first inner ring flange (20) around the circumference, and a first reinforcing rib plate is fixedly connected between every two adjacent first wedge-shaped plates (21); the lower support body (2) comprises a second outer ring flange (16) and a second inner ring flange (19), a plurality of second wedge-shaped plates (18) corresponding to the first wedge-shaped plates (21) are fixedly connected between the second outer ring flange (16) and the second inner ring flange (19), and a second reinforcing rib plate (23) is fixedly connected between every two adjacent second wedge-shaped plates (18); the tops of the first outer ring flange (17) and the first inner ring flange (20) are fixedly connected with a plurality of welding lathe plates (8) around the circumference; a flange plate (14) is arranged on the winding edge of the inner ring of the cone (3), and the upper surface and the lower surface of the flange plate (14) close to the inner ring edge of the cone (3) are respectively and fixedly connected with a flange reinforcing ring (13); the outer support frame (9) comprises a first support rod (4) and a first support plate (5), one end of the first support plate (5) is fixedly connected with the first support rod (4), and the other end of the first support plate is contacted with the welding plate (8); the inner support frame (15) comprises a second support rod (11), a third support rod (10) and a second support plate (12), one end of the second support plate (12) is fixedly connected with the second support rod (11), the other end of the second support plate is contacted with the top surface of the flange plate (14), the third support rod (10) directly supports the bottom surface of the flange plate (14), and the first support plate (5) and the second support plate (12) are provided with screw holes (6).
2. The device for preventing welding deformation of a large megawatt rotor cube cone as claimed in claim 1, wherein: the height of the first outer ring flange (17) is greater than that of the second outer ring flange (16), the height of the second inner ring flange (19) is greater than that of the first inner ring flange (20), but the sum of the heights of the first outer ring flange (17) and the second outer ring flange (16) is the same as the sum of the heights of the second inner ring flange (19) and the first inner ring flange (20).
3. The device for preventing welding deformation of a large megawatt rotor cube cone as claimed in claim 1, wherein: the slopes of the inclined edges of the first wedge-shaped plate (21) and the second wedge-shaped plate (18) are the same in size and opposite in direction.
4. The device for preventing welding deformation of a large megawatt rotor cube cone as claimed in claim 1, wherein: a plurality of lifting lugs (7) are uniformly fixed on the first outer ring flange (17) and the second outer ring flange (16).
5. The device for preventing welding deformation of a large megawatt rotor cube cone as claimed in claim 1, wherein: and a screw is arranged in the screw hole (6).
6. The device for preventing welding deformation of a large megawatt rotor cube cone as claimed in claim 1, wherein: and through holes (22) are formed in the surfaces of the second wedge-shaped plate (18) and the second reinforcing rib class.
7. The device for preventing welding deformation of a large megawatt rotor cube cone as claimed in claim 1, wherein: the bevel edge of the second wedge-shaped plate (18) is matched with the inner surface of the cone (3), and the bevel edge of the first wedge-shaped plate (21) is matched with the outer surface of the cone (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111106372.9A CN113878280B (en) | 2021-09-22 | 2021-09-22 | Welding deformation preventing device for large megawatt rotor cone |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111106372.9A CN113878280B (en) | 2021-09-22 | 2021-09-22 | Welding deformation preventing device for large megawatt rotor cone |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113878280A true CN113878280A (en) | 2022-01-04 |
| CN113878280B CN113878280B (en) | 2023-05-02 |
Family
ID=79009731
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111106372.9A Active CN113878280B (en) | 2021-09-22 | 2021-09-22 | Welding deformation preventing device for large megawatt rotor cone |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113878280B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115302046A (en) * | 2022-07-29 | 2022-11-08 | 中国航发哈尔滨东安发动机有限公司 | Continuous welding tool based on argon arc welding |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203696351U (en) * | 2013-12-25 | 2014-07-09 | 长治清华机械厂 | Locking cylinder welding deformation control tool |
| CN106975896A (en) * | 2017-05-05 | 2017-07-25 | 江苏振江新能源装备股份有限公司 | The production method in 6MW wind-powered electricity generation rotors room |
| CN207522142U (en) * | 2017-08-01 | 2018-06-22 | 江阴市惠尔信精密装备股份有限公司 | For processing the tooling of aerogenerator stator disk |
| CN109570868A (en) * | 2018-12-17 | 2019-04-05 | 杭州杭氧低温液化设备有限公司 | A kind of anti-deformation device of liquid nitrogen machine flange disk |
| CN112145361A (en) * | 2020-10-09 | 2020-12-29 | 江苏振江新能源装备股份有限公司 | Universal rotor room cone assembling mechanism |
-
2021
- 2021-09-22 CN CN202111106372.9A patent/CN113878280B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203696351U (en) * | 2013-12-25 | 2014-07-09 | 长治清华机械厂 | Locking cylinder welding deformation control tool |
| CN106975896A (en) * | 2017-05-05 | 2017-07-25 | 江苏振江新能源装备股份有限公司 | The production method in 6MW wind-powered electricity generation rotors room |
| CN207522142U (en) * | 2017-08-01 | 2018-06-22 | 江阴市惠尔信精密装备股份有限公司 | For processing the tooling of aerogenerator stator disk |
| CN109570868A (en) * | 2018-12-17 | 2019-04-05 | 杭州杭氧低温液化设备有限公司 | A kind of anti-deformation device of liquid nitrogen machine flange disk |
| CN112145361A (en) * | 2020-10-09 | 2020-12-29 | 江苏振江新能源装备股份有限公司 | Universal rotor room cone assembling mechanism |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115302046A (en) * | 2022-07-29 | 2022-11-08 | 中国航发哈尔滨东安发动机有限公司 | Continuous welding tool based on argon arc welding |
| CN115302046B (en) * | 2022-07-29 | 2023-11-24 | 中国航发哈尔滨东安发动机有限公司 | Continuous welding tool based on argon arc welding |
Also Published As
| Publication number | Publication date |
|---|---|
| CN113878280B (en) | 2023-05-02 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN113878280A (en) | Welding deformation preventing device for large megawatt rotor room cone | |
| CN111496339A (en) | Honeycomb plate preparation method and fixture for brazing honeycomb plate | |
| CN103659121B (en) | Welding fixture enabling automotive generator cooling fan blades to be welded to rotor | |
| CN211331955U (en) | Electric automobile battery tray welding jig | |
| CN209094761U (en) | A kind of turbine with mechanical elevating and automatic rotation function and claw spot welding device | |
| CN209062977U (en) | A kind of GGD power distribution cabinet roll-over table | |
| CN203165918U (en) | Anti-explosion corner key for pressing-corner frame of solar cell module | |
| CN107520527B (en) | A kind of high-speed EMUs headwall camber beam and bow beam assembly-welding device | |
| CN219188301U (en) | Punching mechanism of solar frame | |
| CN215242967U (en) | Propeller resin mounting disc | |
| CN212034048U (en) | Stitch welding solar energy component | |
| CN213052604U (en) | Batch positioning tool for silver contact assembling and riveting | |
| CN212665295U (en) | Assembling and welding tool for stator support of wind driven generator | |
| CN220881385U (en) | Discoid shape frock of preapring for an unfavorable turn of events | |
| CN220359506U (en) | Mounting structure of miniaturized frequency source module | |
| CN212793749U (en) | Welding tool for side piece of machine cabinet | |
| CN218658688U (en) | Compression joint assembly compresses tightly positioning device | |
| CN214685007U (en) | Welding fixture for chair frame of massage chair | |
| CN220659704U (en) | Oblique cone tool for wind power rotor room | |
| CN213592150U (en) | Soft packet of lithium cell welding frock | |
| CN212286214U (en) | Jig for brazing honeycomb plate and heat treatment system for brazing honeycomb plate | |
| CN220838711U (en) | Anti-offset welding fixture | |
| CN216731454U (en) | Shift fork porcelain spare glues sticking device | |
| CN218137624U (en) | Special-shaped fixture for assembling front shell of transmission | |
| CN220445535U (en) | Inboard supporting mechanism of welding process equipment |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP02 | Change in the address of a patent holder | ||
| CP02 | Change in the address of a patent holder |
Address after: 214400 No. 2608, Zhencheng Road, Jiangyin City, Wuxi City, Jiangsu Province Patentee after: JIANGSU ZHENJIANG NEW ENERGY EQUIPMENT Co.,Ltd. Address before: No. 28, Jiangshi Road, Lingang street, Jiangyin City, Wuxi City, Jiangsu Province Patentee before: JIANGSU ZHENJIANG NEW ENERGY EQUIPMENT Co.,Ltd. |