CN107910790A - One kind shunting pressure relief device - Google Patents
One kind shunting pressure relief device Download PDFInfo
- Publication number
- CN107910790A CN107910790A CN201711380069.1A CN201711380069A CN107910790A CN 107910790 A CN107910790 A CN 107910790A CN 201711380069 A CN201711380069 A CN 201711380069A CN 107910790 A CN107910790 A CN 107910790A
- Authority
- CN
- China
- Prior art keywords
- plate
- pressure relief
- shunting
- relief device
- side plate
- 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
- 238000009423 ventilation Methods 0.000 claims abstract description 24
- 230000001681 protective effect Effects 0.000 claims description 7
- 230000004888 barrier function Effects 0.000 claims description 6
- 239000002245 particle Substances 0.000 abstract description 11
- 230000000694 effects Effects 0.000 abstract description 3
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 4
- 230000007812 deficiency Effects 0.000 description 2
- 238000010891 electric arc Methods 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000013618 particulate matter Substances 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
- H02B1/56—Cooling; Ventilation
- H02B1/565—Cooling; Ventilation for cabinets
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
- H02B1/26—Casings; Parts thereof or accessories therefor
- H02B1/28—Casings; Parts thereof or accessories therefor dustproof, splashproof, drip-proof, waterproof or flameproof
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
- H02B1/26—Casings; Parts thereof or accessories therefor
- H02B1/30—Cabinet-type casings; Parts thereof or accessories therefor
- H02B1/306—Accessories, e.g. windows
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B13/00—Arrangement of switchgear in which switches are enclosed in, or structurally associated with, a casing, e.g. cubicle
- H02B13/02—Arrangement of switchgear in which switches are enclosed in, or structurally associated with, a casing, e.g. cubicle with metal casing
- H02B13/025—Safety arrangements, e.g. in case of excessive pressure or fire due to electrical defect
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Patch Boards (AREA)
Abstract
The present invention provides a kind of shunting pressure relief device, including housing, and tower pressure relief is equipped with housing, and tower pressure relief includes being stacked into tower-like shunting guide plate, and shunting guide plate includes grouping teaching and ventilating surface, and ventilating surface is equipped with ventilation hole.The beneficial effects of the invention are as follows：The energy of hot gas is consumed after the effect of this device, and scorching hot particle is filtered, and considerably increases the security of switchgear and will not have an impact to the appearance and size of switchgear.
Description
Technical field
The present invention relates to switchgear, more particularly to meet the pressure relief device of the switchgear of arcing and temperature increase requirement.
Background technology
Currently marketed switchgear, the short-circuit arcing experiment for high current generally use external pressure release passage or class
Hot gas and destruction of the scorching hot particle to level indicator are prevented like corrugated pressure relief device.But external pressure release passage cost
It is high and the overall dimension of cabinet can be largely effected on, corrugated pressure relief device ventilation rate deficiency and to the blocking effect of scorching hot particle
It is poor.
The content of the invention
The technical problems to be solved by the invention are, in view of the deficiencies of the prior art, there is provided a kind of cost is relatively low and can have
Effect stops scorching hot particle and disclosure satisfy that arcing and temperature increase requirement, the pressure relief device for switchgear.
Technical solution is used by the present invention solves above-mentioned technical problem：One kind shunting pressure relief device, including housing, shell
Tower pressure relief is equipped with vivo, and tower pressure relief includes being stacked into tower-like shunting guide plate, and shunting guide plate includes dividing
Stream interface and ventilating surface, ventilating surface are equipped with ventilation hole.
Further, shunting guide plate further includes the first mounting surface and the second mounting surface, the side connection of the first mounting surface
Ventilating surface, opposite side connection grouping teaching, the opposite side of ventilating surface connect the second mounting surface, shape between the second mounting surface and grouping teaching
Into ventilation orifice, ventilating surface is towards side plate, and ventilation orifice is towards bottom plate.
Further, grouping teaching is along the transversely arranged into palisade of pressure relief device.
Further, guide plate from bottom to top stacked offset successively from inside to outside is shunted, wherein, the shunting of adjacent upper strata is led
It is fixedly connected to the second mounting surface of plate with the first mounting surface of adjacent lower floor's shunting guide plate, point of upper strata shunting guide plate
The air inlet of formation upper strata shunting guide plate between the grouping teaching of stream interface and lower floor's shunting guide plate, the air inlet and ventilating surface
Ventilation hole forms the pressure release passage of single shunting guide plate.
Further, housing includes bottom plate, side plate and top plate, and bottom plate is installed on the top of switchgear, bottom plate be equipped with into
Air holes, top plate are rotatably connected with one of side plate.
Further, the top of side plate is equipped with inside flanging, and the lower part of side plate is equipped with outside flanging, and side plate passes through it
The outside flanging in lower part is fixedly mounted on the both sides of bottom plate, and hinge is equipped with outside the upper end for the side plate being rotatably connected with top plate,
The flanging on another side plate top is equipped with bolt hole.
Further, the inner surface of top plate is equipped with gauze, and gauze meets IP4X degree of protection.
Further, the lower section of top plate is equipped with strainer, and upper beam and bottom end rail are equipped between side plate, and strainer is installed on upper horizontal stroke
Between beam and bottom end rail, strainer meets IP4X degree of protection.
Further, strainer includes upper surface section, lower surface section and folding surface section, and the both ends of upper surface section pass through folding surface
Section connection lower surface end, upper surface section and lower surface section are parallel to each other, and upper surface section is fixedly connected on upper beam, lower surface section
It is fixedly connected on bottom end rail.
Further, side plate is equipped with ventilation fence, and the outside arrangement protective plate of ventilation fence, protective plate is outwardly protruding, protection
Lateral strainer is equipped with the inside of plate, which also meets IP4X protection level requirements, resistance is additionally provided with the outside of the side plate of both sides
Baffle, the structure of barrier plate are consistent with side plate.
The beneficial effects of the invention are as follows：Tower shunting pressure relief device plays hot gas by building up tower-like shunting guide plate
Shunting function, grouping teaching formed grid electric arc by when play the role of arc cutting.In the first side plate and the second side plate
After carrying out energy by collision to hot gas and scorching hot particle, strainer can effectively filter particle, prevent particle from spilling.By the work of this device
Be consumed with the energy of rear hot gas, scorching hot particle is filtered, considerably increase switchgear security and will not be to switchgear
Appearance and size has an impact.
Brief description of the drawings
Fig. 1 is the stereogram of the pressure relief device of embodiment 1.
Fig. 2 is the schematic diagram of the pressure relief device of embodiment 1.
Fig. 3 is the schematic diagram for shunting guide plate.
Fig. 4 is the schematic diagram of strainer.
Fig. 5 is the stereogram of the pressure relief device of embodiment 2.
Fig. 6 is the schematic diagram of the pressure relief device of embodiment 2.
Figure label：Top plate 1；First side plate 2；Second side plate 3；Bottom plate 4；Hinge 5；Plastic bolt 6；Gauze 7；Shunting is led
To plate 8；Strainer 9；Upper beam 10；Bottom end rail 11；Air inlet hole 12；First mounting surface 13；Ventilating surface 14；Ventilation hole 15；Grouping teaching
16；Upper surface section 17；Lower surface section 18；Folding surface section 19；Second mounting surface 20；Barrier plate 21；Protective plate 22；Ventilation fence 23.
Embodiment
Specific embodiments of the present invention are described in further details below in conjunction with attached drawing, it is noted that implement
Example simply elaborates technical scheme, is not limitation of the invention.
Embodiment 1, referring to the drawings 1-4.
In the present embodiment, shunting pressure relief device includes housing, and housing includes bottom plate 4, the first side plate 2,3 and of the second side plate
Top plate 1, bottom plate 4 are installed on the top of switchgear, and bottom plate 4 is equipped with air inlet hole 12, and 1 and first side plate 2 of top plate can by hinge 5
Rotation connection.
The top of first side plate 2 and the second side plate 3 is equipped with inside flanging, and the lower part of the first side plate 2 and the second side plate 3 is set
There is outside flanging so that the first side plate 2 and the second side plate 3 form opposite zigzag, and the first side plate 2 and the second side plate 3 are distinguished
The both sides of bottom plate 4 are fixedly mounted on by the outside flanging in its underpart, the flanging on 3 top of the second side plate is equipped with bolt hole,
After top plate 1 covers, top plate can be fixedly connected on by 3 top of the second side plate by plastic bolt 6.
As shown in Figure 1, the inner surface of top plate 1 is equipped with gauze 7, gauze 7 meets IP4X degree of protection.
The lower section of top plate 1 is equipped with strainer 9, and upper beam 10 and bottom end rail 11 are equipped between the first side plate 2 and the second side plate 3,
Strainer 9 is installed between upper beam 10 and bottom end rail 11, and strainer 9 meets IP4X degree of protection.
As a preferred embodiment, as shown in figure 4, strainer 9 includes upper surface section 17, lower surface section 18 and folding surface section 19, on
The both ends of surface section 17 connect two lower surfaces end 18 respectively by folding surface section 19, and upper surface section 17 and lower surface section 18 are mutual
Parallel, upper surface section 17 is fixedly connected on upper beam 10, and lower surface section 18 is fixedly connected on bottom end rail 11, in this way, passing through
Strainer is fixed the top half in space inside housings by lower and upper cross-member.
As shown in Figs. 1-2, tower pressure relief is equipped with housing, tower pressure relief is led including being stacked into tower-like shunting
To plate 8, shunting guide plate 8 divides two rows of stackings, from top to bottom inwardly offset successively during stacking, so that pyramidal structure is formed, top
The big pyramidal structure stability in small bottom is high, and anti-impact force is strong.The both sides of tower pressure relief and the first side plate 2 and the second side plate
There is certain gap, this portion gap can be used for storing the particulate matter to drop temporarily between 3.
As shown in figure 3, shunting guide plate 8 includes grouping teaching 16 and ventilating surface 14, ventilating surface 14 is equipped with some ventilations
Hole 15, shunting guide plate 8 further include the first mounting surface 13 and the second mounting surface 20, the side connection ventilating surface of the first mounting surface 13
14, opposite side connection grouping teaching 16, the opposite side of ventilating surface 14 connects the second mounting surface 20, the second mounting surface 20 and grouping teaching 16
Between form ventilation orifice, in this way, shunting guide plate 8 be formed the C-shaped structure in section, the opening of C-shaped is that ventilation is opened
Mouthful, and ventilating surface 14 is towards the first side plate 2 and the second side plate 3 of both sides, and ventilation orifice is towards bottom plate 4.
As shown in Fig. 2, the grouping teaching 16 of multiple shunting guide plates 8 is played and cut along the transversely arranged into palisade of pressure relief device
Cut the effect of electric arc and hot gas shunting.
The from bottom to top stacked offset successively from inside to outside of guide plate 8 is shunted, wherein, the of adjacent upper strata shunting guide plate
Two mounting surfaces 20 are fixedly connected with the first mounting surface 13 of adjacent lower floor's shunting guide plate, and usually, connecting portion is located at
The middle part of first mounting surface 13, forms between the grouping teaching 16 of upper strata shunting guide plate and the grouping teaching 16 of lower floor's shunting guide plate
The ventilation hole of the air inlet of upper strata shunting guide plate 8, the air inlet and ventilating surface forms the pressure release passage of single shunting guide plate.
The operation principle of the structure of the present embodiment produces as shown in Fig. 2, exploding when pressure relief device bottom because of switchgear arcing
During a large amount of high temperature and high pressure gas, hot gas enters pressure relief device by the air inlet hole 12 on bottom plate 4 first, is then oriented to by shunting
Plate 8 shunts and changes airflow direction, and punching is produced to the first side plate 2 and the second side plate 3 after the ventilating surface 14 by shunting guide plate 8
Hit.Scorching hot particle of the hot gas with being mingled with hot gas passes upward through strainer 9 after energy by collision.Scorching hot particle therein is by strainer 9
Drop after filtering and be deposited in pressure relief device corner, top plate 1 is washed open and arranged outside backward pressure relief device by remaining hot gas by strainer 9
Go out.
Embodiment 2, referring to the drawings 3-6.
In the present embodiment, the first side plate 2 and the second side plate 3 are equipped with ventilation fence 23, and the outside arrangement of ventilation fence 23 is anti-
Backplate 22, protective plate 22 is outwardly protruding, and barrier plate 21, the structure of barrier plate 21 and the first side are additionally provided with the outside of the side plate of both sides
Plate 2 is consistent with the second side plate 3, and its upper part has inside flanging, and lower part has outside flanging, and passes through outside folding
While it is fixedly connected on bottom plate 4.
The other embodiment of the present embodiment is same as Example 1.
The operation principle of the structure of the present embodiment produces as shown in fig. 6, exploding when pressure relief device bottom because of switchgear arcing
During a large amount of high temperature and high pressure gas, hot gas enters pressure relief device by the air inlet hole 12 on bottom plate 4 first, is then oriented to by shunting
Plate 8 shunts and changes airflow direction, to the first air stave 22 and the second ventilation side after the ventilating surface 14 by shunting guide plate 8
Plate 23 produces impact.Scorching hot particle of the hot gas with being mingled with hot gas partly passes upward through upper sieve 9 and carries out after energy by collision
Discharged upwards after particulate filter, another part carries out particulate filter by lateral strainer again through grid hole 25, then by both sides
Barrier plate 21 carry out being oriented to upward discharge.
It should be noted that the above is only the preferred embodiment of the present invention, it is noted that for the art
Those of ordinary skill, without departing from the inventive concept of the premise, some improvements and modifications can also be made, these improve and
Retouching also should be regarded as in the scope of the present invention.
Claims (10)
1. one kind shunting pressure relief device, including housing, it is characterized in that, it is equipped with tower pressure relief, tower pressure relief in housing
Including being stacked into tower-like shunting guide plate, shunting guide plate includes grouping teaching and ventilating surface, and ventilating surface is equipped with ventilation hole.
2. a kind of shunting pressure relief device according to claim 1, it is characterized in that, shunting guide plate further includes the first mounting surface
With the second mounting surface, the side connection ventilating surface of the first mounting surface, opposite side connection grouping teaching, the opposite side connection the of ventilating surface
Two mounting surfaces, form ventilation orifice between the second mounting surface and grouping teaching, ventilating surface is towards side plate, and ventilation orifice is towards bottom plate.
3. a kind of shunting pressure relief device according to claim 2, it is characterized in that, grouping teaching is along the transversely arranged of pressure relief device
Into palisade.
4. a kind of shunting pressure relief device according to claim 2, it is characterized in that, shunt guide plate from inside to outside from bottom to top
Stacked offset successively, wherein, the of the second mounting surface of adjacent upper strata shunting guide plate and adjacent lower floor's shunting guide plate
One mounting surface is fixedly connected, and upper strata point is formed between the grouping teaching of upper strata shunting guide plate and the grouping teaching of lower floor's shunting guide plate
The ventilation hole of the air inlet of stream guide plate, the air inlet and ventilating surface forms the pressure release passage of single shunting guide plate.
5. a kind of shunting pressure relief device according to claim 1, it is characterized in that, housing includes bottom plate, side plate and top plate, bottom
Plate is installed on the top of switchgear, and bottom plate is equipped with air inlet hole, and top plate is rotatably connected with one of side plate.
6. a kind of shunting pressure relief device according to claim 5, it is characterized in that, the top of side plate is equipped with inside flanging,
The lower part of side plate is equipped with outside flanging, and side plate is fixedly mounted on the both sides of bottom plate by the outside flanging in its underpart, with top plate
Hinge is equipped with outside the upper end for the side plate being rotatably connected, the flanging on another side plate top is equipped with bolt hole.
7. a kind of shunting pressure relief device according to claim 6, it is characterized in that, the inner surface of top plate is equipped with gauze, yarn
Net meets IP4X degree of protection.
8. a kind of shunting pressure relief device according to claim 5, it is characterized in that, the lower section of top plate is equipped with strainer, side plate it
Between be equipped with upper beam and bottom end rail, strainer is installed between upper beam and bottom end rail, and strainer meets IP4X degree of protection.
9. a kind of shunting pressure relief device according to claim 8, it is characterized in that, strainer includes upper surface section, lower surface section
With folding surface section, the both ends of upper surface section connect lower surface end by folding surface section, and upper surface section and lower surface section are parallel to each other,
Upper surface section is fixedly connected on upper beam, and lower surface section is fixedly connected on bottom end rail.
10. a kind of shunting pressure relief device according to claim 1, it is characterized in that, side plate is equipped with ventilation fence, ventilation fence
Protective plate is arranged in outside, and protective plate is outwardly protruding, is equipped with strainer on the inside of protective plate, stop is additionally provided with the outside of the side plate of both sides
Plate, the structure of barrier plate are consistent with side plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711380069.1A CN107910790B (en) | 2017-12-20 | 2017-12-20 | Shunt pressure relief device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711380069.1A CN107910790B (en) | 2017-12-20 | 2017-12-20 | Shunt pressure relief device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107910790A true CN107910790A (en) | 2018-04-13 |
| CN107910790B CN107910790B (en) | 2023-12-29 |
Family
ID=61870377
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711380069.1A Active CN107910790B (en) | 2017-12-20 | 2017-12-20 | Shunt pressure relief device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107910790B (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108404582A (en) * | 2018-05-05 | 2018-08-17 | 中科天工电气控股有限公司 | A kind of pressure relief device with efficient circulation efficiency |
| CN108808485A (en) * | 2018-07-02 | 2018-11-13 | 青岛特锐德电气股份有限公司 | Pressure relief device of switch cabinet and switchgear |
| CN109004570A (en) * | 2018-08-27 | 2018-12-14 | 江苏南瑞帕威尔电气有限公司 | A kind of high-tension switch cabinet Novel pressure relief device |
| CN110741965A (en) * | 2019-11-12 | 2020-02-04 | 张桂云 | Ventilation and deodorization system for poultry farm and breeding method thereof |
| WO2021135646A1 (en) * | 2019-12-30 | 2021-07-08 | 青岛益和电气集团股份有限公司 | Switch cabinet pressure relief device and switch cabinet |
| US11451017B2 (en) * | 2018-04-27 | 2022-09-20 | Siemens Energy Global GmbH & Co. KG | Switchgear cabinet |
| CN117856076A (en) * | 2024-03-06 | 2024-04-09 | 福州许继电气有限公司 | Novel KYN cubical switchboard pressure release structure |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201898292U (en) * | 2010-12-02 | 2011-07-13 | 上海广电电气(集团)股份有限公司 | Partition plate for heat dissipation and arc extinction in medium voltage switchgear |
| CN202178500U (en) * | 2011-07-29 | 2012-03-28 | 上海西门子开关有限公司 | Air discharge assembly of switch cabinet and switch cabinet |
| CN205609981U (en) * | 2016-04-11 | 2016-09-28 | 镇江大全伊顿电器有限公司 | Medium voltage switchgear cabinet body pressure release board |
| US20170098924A1 (en) * | 2015-10-06 | 2017-04-06 | Schneider Electric USA, Inc. | Water resistant arc resistant outdoor switchgear air vent |
| CN107453249A (en) * | 2017-07-24 | 2017-12-08 | 国网山东省电力公司经济技术研究院 | Direct-current switch cabinet pressure relief device |
-
2017
- 2017-12-20 CN CN201711380069.1A patent/CN107910790B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201898292U (en) * | 2010-12-02 | 2011-07-13 | 上海广电电气(集团)股份有限公司 | Partition plate for heat dissipation and arc extinction in medium voltage switchgear |
| CN202178500U (en) * | 2011-07-29 | 2012-03-28 | 上海西门子开关有限公司 | Air discharge assembly of switch cabinet and switch cabinet |
| US20170098924A1 (en) * | 2015-10-06 | 2017-04-06 | Schneider Electric USA, Inc. | Water resistant arc resistant outdoor switchgear air vent |
| CN205609981U (en) * | 2016-04-11 | 2016-09-28 | 镇江大全伊顿电器有限公司 | Medium voltage switchgear cabinet body pressure release board |
| CN107453249A (en) * | 2017-07-24 | 2017-12-08 | 国网山东省电力公司经济技术研究院 | Direct-current switch cabinet pressure relief device |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11451017B2 (en) * | 2018-04-27 | 2022-09-20 | Siemens Energy Global GmbH & Co. KG | Switchgear cabinet |
| CN108404582A (en) * | 2018-05-05 | 2018-08-17 | 中科天工电气控股有限公司 | A kind of pressure relief device with efficient circulation efficiency |
| CN108808485A (en) * | 2018-07-02 | 2018-11-13 | 青岛特锐德电气股份有限公司 | Pressure relief device of switch cabinet and switchgear |
| CN109004570A (en) * | 2018-08-27 | 2018-12-14 | 江苏南瑞帕威尔电气有限公司 | A kind of high-tension switch cabinet Novel pressure relief device |
| CN110741965A (en) * | 2019-11-12 | 2020-02-04 | 张桂云 | Ventilation and deodorization system for poultry farm and breeding method thereof |
| CN110741965B (en) * | 2019-11-12 | 2021-10-15 | 颍上县达鸣家禽养殖有限公司 | Ventilation and deodorization system for poultry farm and breeding method thereof |
| WO2021135646A1 (en) * | 2019-12-30 | 2021-07-08 | 青岛益和电气集团股份有限公司 | Switch cabinet pressure relief device and switch cabinet |
| CN117856076A (en) * | 2024-03-06 | 2024-04-09 | 福州许继电气有限公司 | Novel KYN cubical switchboard pressure release structure |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107910790B (en) | 2023-12-29 |
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Address after: Wenzhou Bridge Industrial Park Yueqing City, Zhejiang province 325600 white town of Wenzhou city (Wankong Group Co.) Applicant after: Wancon Zhizhuang Co.,Ltd. Address before: Wenzhou Bridge Industrial Park Yueqing City, Zhejiang province 325600 white town of Wenzhou city (Wankong Group Co.) Applicant before: WECOME INTELLIGENT MANUFACTURING ZHEJIANG ELECTRIC CO.,LTD. |
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