CN112467527B - Ring main unit with sealing door mechanism - Google Patents
Ring main unit with sealing door mechanism Download PDFInfo
- Publication number
- CN112467527B CN112467527B CN202011216200.2A CN202011216200A CN112467527B CN 112467527 B CN112467527 B CN 112467527B CN 202011216200 A CN202011216200 A CN 202011216200A CN 112467527 B CN112467527 B CN 112467527B
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- CN
- China
- Prior art keywords
- main unit
- ring main
- door
- surface wall
- gear
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- 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.)
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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
- H02B1/26—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
-
- 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
- H02B1/32—Mounting of devices therein
-
- 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
-
- 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
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/14—Extreme weather resilient electric power supply systems, e.g. strengthening power lines or underground power cables
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Specific Sealing Or Ventilating Devices For Doors And Windows (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention discloses a ring main unit with a sealing door mechanism, which comprises a ring main unit body, wherein a sliding rod is vertically arranged on the outer surface wall of the vertical end of the ring main unit body, and the outer surface wall of the sliding rod is movably connected with a sliding sleeve. According to the invention, the door body is manually moved, the first door leaf and the second door leaf rotate and are engaged, at the moment, the door body is continuously pushed to turn over towards one side of the ring main unit body through the matching of the connecting piece and the sliding sleeve until the protrusion of the surface wall in the door body is combined with the clamping groove on the ring main unit body, and then the door body is locked with the combining seat through the locking seat, so that the combination of the door body and the ring main unit body is realized, at the moment, the elastic cushion layer of the surface wall in the clamping groove is elastically deformed to cling to the protrusion, the tightness of the connection between the door body and the ring main unit body is ensured, and therefore, the external water body and impurities are prevented from entering the inner cavity of the ring main unit body, and the use stability of the ring main unit body is improved.
Description
Technical Field
The invention relates to the technical field of ring main units, in particular to a ring main unit with a sealing door mechanism.
Background
At present, the existing ring main unit still has some defects, firstly, the door body of the ring main unit mostly adopts a loose-leaf structure, the connecting gap between the door body and the main unit is larger, and as the ring main unit is mostly installed outdoors and directly exposed in the external environment, impurities and water in the air easily enter the inner cavity of the ring main unit through the gap, thereby affecting the normal use of electrical devices in the ring main unit, and further reducing the use stability of the ring main unit; secondly, current looped netowrk cabinet mostly is provided with cooling mechanism, and is provided with on the casing mostly with cooling mechanism assorted have the inlet network mouth of dust separation function, at cooling mechanism's operation in-process, the dust in the air adsorbs and deposits on inlet network mouth under the effect of long-term negative pressure easily, leads to inlet network mouth to be stopped up, and then makes cooling mechanism radiating effect reduce to the result of use of looped netowrk cabinet has been reduced.
Disclosure of Invention
The invention aims to solve the problems and provides a ring main unit with a sealing door mechanism.
In order to achieve the above purpose, the present invention adopts the following technical scheme:
the utility model provides a looped netowrk cabinet with sealing door mechanism, includes the looped netowrk cabinet main part, the slide bar is vertically installed to the vertical end outer surface wall of looped netowrk cabinet main part, just slide bar outer surface wall swing joint has the sliding sleeve, the looped netowrk cabinet is still including:
the door body, the door body is including first door page or leaf and the second door page or leaf that rotates the connection through the pivot, terminal surface fixed mounting has the connecting piece before the first door page or leaf, the connecting piece is two segmentation mechanisms, and rotates through the pivot between the two segmentation and be connected, connecting piece open end and sliding sleeve fixed connection, first door page or leaf and the second door page or leaf are close to the equal fixed mounting in one side of looped netowrk cabinet main part have the arch, the arch is connected with looped netowrk cabinet main part block through the draw-in groove, just table wall fixed mounting has the elastic cushion in the draw-in groove.
As a further description of the above technical solution:
the looped netowrk cabinet still includes:
the novel air suction device comprises an air suction bin and an air guide bin, wherein a fan is fixedly arranged in an inner cavity of the air suction bin, the input end of the fan is in transmission connection with the inner cavity of a main body of a ring main unit, an air-permeable separation net is fixedly arranged at the vertical end of the air guide bin, a net cover is fixedly arranged on the inner surface wall of the vertical end of the main body of the ring main unit, a driving motor is fixedly arranged on the inner surface wall of the air guide bin, a gear III is rotationally connected with the output end of the driving motor, a gear I and a gear II are respectively connected with the outer surface wall of the gear III in a meshed mode through teeth, a fan blade and a brush rod are respectively in transmission connection with the horizontal end of the gear I and the horizontal end of the gear II, a support frame is fixedly arranged on the inner surface wall of the top of the air guide bin, and the support frame is respectively connected with the gear I, the gear II and the gear III in a clamping mode.
As a further description of the above technical solution:
the looped netowrk cabinet still includes:
the top of the ring main unit is fixedly provided with a connecting block, the connecting block is connected with the top of the ring main unit in a screwing mode through bolts.
As a further description of the above technical solution:
one side of the second door leaf, which is far away from the first door leaf, is fixedly provided with a locking seat, and the locking seat is in locking connection with the ring main unit body through a combination seat.
As a further description of the above technical solution:
the slide bar is through dog and looped netowrk cabinet main part fixed connection of vertical end both sides, one side that the sliding sleeve is close to the baffle and baffle looks butt.
As a further description of the above technical solution:
one side of the mesh enclosure, which is far away from the fan blades, is fixedly connected with a drying agent interlayer through bolts.
As a further description of the above technical solution:
the outer surface walls of the air guide bin and the air suction bin are fixedly provided with guide pipes in arc structures.
In summary, due to the adoption of the technical scheme, the beneficial effects of the invention are as follows:
1. according to the invention, the door body is manually moved, the first door leaf and the second door leaf rotate and are engaged, at the moment, the door body is continuously pushed to turn over towards one side of the ring main unit body through the matching of the connecting piece and the sliding sleeve until the protrusion of the surface wall in the door body is combined with the clamping groove on the ring main unit body, and then the door body is locked with the combining seat through the locking seat, so that the combination of the door body and the ring main unit body is realized, at the moment, the elastic cushion layer of the surface wall in the clamping groove is elastically deformed to cling to the protrusion, the tightness of the connection between the door body and the ring main unit body is ensured, and therefore, the external water body and impurities are prevented from entering the inner cavity of the ring main unit body, and the use stability of the ring main unit body is improved.
2. According to the invention, the driving motor drives the fan blades to rotate through the cooperation of the gear III and the gear I, so that gas is sequentially led into the inner cavity of the ring main unit body from the ventilation isolation net and the net cover, the fan synchronously works, the fan absorbs the air flow in the inner cavity of the ring main unit body and discharges the air flow from the output end, the air flow in the ring main unit body is accelerated, the heat dissipation of the inner cavity of the ring main unit body is completed, the gear II synchronously drives the brush rod to be attached to the ventilation isolation net to rotate under the action of the gear III, and the deposited dust is pushed away by the brush rod, so that the blocking of the ventilation isolation net is avoided, and the using effect of the ring main unit is improved.
3. According to the ring main unit maintenance cabinet, the shielding cover can be pulled by the handle through screwing off the bolt between the connecting block and the ceiling, and can extend out of the ceiling through the cooperation of the sliding block and the sliding groove, so that the shielding cover is used as a shielding structure, the normal operation of maintenance personnel can not be influenced by hot sunlight in hot weather, and the shielding cover can also prevent rain and snow from invading the inside of the cabinet body to a certain extent during ring main unit maintenance in rainy and snowy weather.
Drawings
FIG. 1 is a schematic diagram of the overall structure of the present invention;
FIG. 2 is a schematic diagram of the front view of the present invention;
FIG. 3 is a schematic view of a protrusion and a slot according to the present invention;
FIG. 4 is an enlarged schematic view of the structure of the present invention at A;
fig. 5 is an enlarged schematic view of the ceiling and the shielding cover according to the present invention.
Legend description:
1. a ring main unit body; 2. a sliding sleeve; 3. a connecting piece; 4. a slide bar; 5. a suction bin; 6. a blower; 7. a door body; 701. a first door page; 702. a second door page; 8. a protrusion; 9. a clamping groove; 10. a locking seat; 11. a combining seat; 12. a desiccant interlayer; 13. a mesh enclosure; 14. a fan blade; 15. a first gear; 16. an air guide bin; 17. a support frame; 18. an air permeable barrier; 19. a brush bar; 20. a second gear; 21. a third gear; 22. a driving motor; 23. a ceiling; 24. a shielding cover; 25. a sliding block.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Embodiment one:
referring to fig. 1-5, a looped netowrk cabinet with sealing door mechanism, including looped netowrk cabinet main part 1, slide bar 4 is vertically installed to the vertical end outer surface wall of looped netowrk cabinet main part 1, and slide bar 4 outer surface wall swing joint has sliding sleeve 2, and sliding bar 4 is through the dog and the looped netowrk cabinet main part 1 fixed connection of vertical end both sides, and one side that sliding sleeve 2 is close to the baffle and baffle looks butt have guaranteed the position stability of sliding sleeve 2 when having guaranteed that sliding sleeve 2 normally slides, and the looped netowrk cabinet still includes:
the door body 7, the door body 7 is including first door page or leaf 701 and the second door page or leaf 702 of rotating the connection through the pivot, one side fixed mounting that first door page or leaf 701 was kept away from to the second door page or leaf 702 has locking seat 10, locking seat 10 is connected with looped netowrk cabinet main part 1 locking through combining seat 11, thereby guarantee the security of looped netowrk cabinet main part 1, terminal surface fixed mounting has connecting piece 3 before the first door page or leaf 701, connecting piece 3 is two segmentation mechanisms, and rotate through the pivot between the two segmentation and connect, connecting piece 3 open end and sliding sleeve 2 fixed connection, first door page or leaf 701 and second door page or leaf 702 are close to one side of looped netowrk cabinet main part 1 and all fixed mounting have protruding 8, protruding 8 passes through draw-in groove 9 and looped netowrk cabinet main part 1 block connection, and surface wall fixed mounting has the elastic cushion in the draw-in groove 9.
The bulge 8 of the inner surface wall of the door body 7 is combined with the clamping groove 9 of the rectangular structure on the ring main unit body 1, the door body 7 is locked with the combining seat 11 through the locking seat 10, the combination of the door body 7 and the ring main unit body 1 is realized, at the moment, the elastic cushion layer of the inner surface wall of the clamping groove 9 is elastically deformed to cling to the bulge 8, and the connection tightness of the door body 7 and the ring main unit body 1 is ensured.
Unlike the embodiment, the first embodiment is that
Embodiment two:
referring to fig. 1 and fig. 4, the ring main unit further includes:
the air suction bin 5 and the air guide bin 16 are fixedly arranged in the inner cavity of the air suction bin 5, the input end of the air suction bin 6 is in transmission connection with the inner cavity of the ring main unit 1, the air permeable separation net 18 is fixedly arranged at the vertical end of the air guide bin 16, the net cover 13 is fixedly arranged on the inner surface wall of the vertical end of the ring main unit 1, the driving motor 22 is fixedly arranged on the inner surface wall of the air guide bin 16, the output end of the driving motor 22 is rotationally connected with the gear III 21, the outer surface wall of the gear III 21 is respectively connected with the gear I15 and the gear II 20 in a meshed manner through teeth, the horizontal ends of the gear I15 and the gear II 20 are respectively in transmission connection with the fan blade 14 and the brush rod 19, the support frame 17 is respectively in clamping connection with the gear I15, the gear II 20 and the gear III 21, one side, far away from the fan blade 14, of the net cover 13 is fixedly connected with the drying agent interlayer 12 through bolts, so that air flow guiding is dried, the outer surface walls of the air guide bin 16 and the air suction bin 5 are fixedly arranged with guide pipes which are arc structures, and rainwater is prevented from invading into the inner cavity of the ring main unit 1 through an external opening.
The driving motor 22 drives the fan blade 14 to rotate through the cooperation of the gear III 21 and the gear I15, so that gas is sequentially led into the inner cavity of the ring main unit body 1 from the ventilation separation net 18 and the net cover 13, the fan 6 synchronously works, the fan 6 absorbs the air flow in the inner cavity of the ring main unit body 1 and discharges the air flow from the output end, the air flow in the ring main unit body 1 is accelerated, the heat dissipation of the inner cavity of the ring main unit body 1 is completed, the gear II 20 synchronously drives the brush rod 19 to be attached to the ventilation separation net 18 to rotate under the action of the gear III 21, and the brush rod 19 pushes deposited dust away to avoid blocking the ventilation separation net 18.
Unlike the embodiment, the first embodiment is that
Embodiment III:
the looped netowrk cabinet still includes:
referring to fig. 1 and 5, a ceiling 23 and a shielding cover 24 are provided, the ceiling 23 is fixedly mounted at the top of the ring main unit body 1, the shielding cover 24 is penetrated at the longitudinal end of the ceiling 23, a sliding block 25 is fixedly mounted at the top of the shielding cover 24, the sliding block 25 is slidably connected with the ceiling 23 through a longitudinally arranged sliding groove, a connecting block is fixedly connected with the front end surface of the shielding cover 24, and the connecting block is screwed with the ceiling 23 through a bolt.
Through the bolt that revolves between connecting block and the ceiling 23, accessible handle pulling shelters from lid 24, shelters from lid 24 accessible slider 25 and the cooperation of spout and stretches out ceiling 23 to this regard as sheltering from the structure for under hot weather, hot sunlight can not influence maintainer's normal operation, and when sleet weather, shelters from lid 24 also can avoid the sleet to invade the cabinet body inside when the looped netowrk cabinet is maintained to a certain extent.
Working principle: when the door body 7 is manually moved, the first door page 701 and the second door page 702 rotate and are engaged, at the moment, the door body 7 is continuously pushed to turn over to one side of the ring main unit body 1 through the matching of the connecting piece 3 and the sliding sleeve 2 until the bulge 8 of the inner surface wall of the door body 7 is combined with the clamping groove 9 of the rectangular structure on the ring main unit body 1, then the door body 7 is locked with the combining seat 11 through the locking seat 10, so that the combination of the door body 7 and the ring main unit body 1 is realized, at the moment, the elastic cushion layer of the inner surface wall of the clamping groove 9 is elastically deformed to cling to the bulge 8, and the connection tightness of the door body 7 and the ring main unit body 1 is ensured;
the driving motor 22 is matched with the first gear 15 through the third gear 21 to drive the fan blade 14 to rotate, so that gas is sequentially led into the inner cavity of the ring main unit body 1 from the ventilation screen 18 and the screen 13, the fan 6 synchronously works, the fan 6 absorbs the air flow in the inner cavity of the ring main unit body 1 and discharges the air flow from the output end, the air flow in the ring main unit body 1 is accelerated, the heat dissipation of the inner cavity of the ring main unit body 1 is completed, in the process, the second gear 20 synchronously drives the brush rod 19 to be attached to the ventilation screen 18 to rotate under the action of the third gear 21, and the brush rod 19 pushes deposited dust away to avoid blocking the ventilation screen 18;
through the bolt that revolves between connecting block and the ceiling 23, accessible handle pulling shelters from lid 24, shelters from lid 24 accessible slider 25 and the cooperation of spout and stretches out ceiling 23 to this regard as sheltering from the structure for under hot weather, hot sunlight can not influence maintainer's normal operation, and when sleet weather, shelters from lid 24 also can avoid the sleet to invade the cabinet body inside when the looped netowrk cabinet is maintained to a certain extent.
The foregoing is only a preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art, who is within the scope of the present invention, should make equivalent substitutions or modifications according to the technical scheme of the present invention and the inventive concept thereof, and should be covered by the scope of the present invention.
Claims (6)
1. The utility model provides a looped netowrk cabinet with sealing door mechanism, includes looped netowrk cabinet main part (1), its characterized in that, slide bar (4) are vertically installed to the vertical end outer surface wall of looped netowrk cabinet main part (1), just slide bar (4) outer surface wall swing joint has sliding sleeve (2), the looped netowrk cabinet is still including:
the door body (7), the door body (7) is including first door page (701) and the second door page (702) of rotating the connection through the pivot, terminal surface fixed mounting has connecting piece (3) before first door page (701), connecting piece (3) are two segmentation mechanisms, and rotate through the pivot between two segmentation and connect, connecting piece (3) open end and sliding sleeve (2) fixed connection, first door page (701) all fixed mounting have protruding (8) with one side that second door page (702) is close to looped netowrk cabinet main part (1), protruding (8) are connected with looped netowrk cabinet main part (1) block through draw-in groove (9), just table wall fixed mounting has the elastic cushion in draw-in groove (9); the looped netowrk cabinet still includes:
the novel air suction device comprises an air suction bin (5) and an air guide bin (16), wherein a fan (6) is fixedly arranged in an inner cavity of the air suction bin (5), an input end of the fan (6) is connected with an inner cavity of a ring main unit (1) in a transmission mode, an air-permeable separation net (18) is fixedly arranged at the vertical end of the air guide bin (16), a net cover (13) is fixedly arranged on the inner surface wall of the vertical end of the ring main unit (1), a driving motor (22) is fixedly arranged on the inner surface wall of the air guide bin (16), a gear III (21) is rotatably connected with an output end of the driving motor (22), a gear I (15) and a gear II (20) are respectively connected with an outer surface wall of the gear III (21) in a meshed mode through teeth, a fan blade (14) and a brush rod (19) are respectively connected with the horizontal end of the gear II (20), a supporting frame (17) is fixedly arranged on the inner surface wall of the top of the air guide bin (16), and the supporting frame (17) is respectively connected with a gear I (15), a gear II (20) and a gear III (21) in a clamping mode.
2. The ring main unit with a sealing door mechanism according to claim 1, further comprising:
the novel ring main unit comprises a ceiling (23) and a shielding cover (24), wherein the ceiling (23) is fixedly arranged at the top of a ring main unit body (1), the shielding cover (24) is arranged at the longitudinal end of the ceiling (23) in a penetrating mode, a sliding block (25) is fixedly arranged at the top of the shielding cover (24), the sliding block (25) is in sliding connection with the ceiling (23) through a sliding groove which is longitudinally arranged, a connecting block is fixedly connected with the front end face of the shielding cover (24), and the connecting block is connected with the ceiling (23) in a screwing mode through a bolt.
3. The ring main unit with the sealing door mechanism according to claim 1, wherein a locking seat (10) is fixedly arranged on one side, far away from the first door leaf (701), of the second door leaf (702), and the locking seat (10) is in locking connection with the ring main unit body (1) through a combination seat (11).
4. The ring main unit with the sealing door mechanism according to claim 1, wherein the sliding rod (4) is fixedly connected with the ring main unit body (1) through stop blocks at two sides of the vertical end, and one side, close to the baffle, of the sliding sleeve (2) is abutted against the baffle.
5. A ring main unit with a sealing door mechanism according to claim 2, characterized in that the side of the mesh enclosure (13) far away from the fan blades (14) is fixedly connected with a drying agent interlayer (12) through bolts.
6. The ring main unit with the sealing door mechanism according to claim 2, wherein the outer surface walls of the air guide bin (16) and the air suction bin (5) are fixedly provided with guide pipes in arc structures.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011216200.2A CN112467527B (en) | 2020-11-04 | 2020-11-04 | Ring main unit with sealing door mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011216200.2A CN112467527B (en) | 2020-11-04 | 2020-11-04 | Ring main unit with sealing door mechanism |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112467527A CN112467527A (en) | 2021-03-09 |
| CN112467527B true CN112467527B (en) | 2023-08-08 |
Family
ID=74835882
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011216200.2A Active CN112467527B (en) | 2020-11-04 | 2020-11-04 | Ring main unit with sealing door mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112467527B (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN207705620U (en) * | 2018-01-25 | 2018-08-07 | 天津久辉电气有限公司 | A kind of waterproof switch cabinet |
| CN109244899A (en) * | 2018-11-05 | 2019-01-18 | 云南博创电气设备有限公司 | A kind of dehumidification system for box-type substation and ring network cabinet |
| CN111864568A (en) * | 2020-08-02 | 2020-10-30 | 马士波 | Ring main unit with conveniently detachable filtering device |
-
2020
- 2020-11-04 CN CN202011216200.2A patent/CN112467527B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN207705620U (en) * | 2018-01-25 | 2018-08-07 | 天津久辉电气有限公司 | A kind of waterproof switch cabinet |
| CN109244899A (en) * | 2018-11-05 | 2019-01-18 | 云南博创电气设备有限公司 | A kind of dehumidification system for box-type substation and ring network cabinet |
| CN111864568A (en) * | 2020-08-02 | 2020-10-30 | 马士波 | Ring main unit with conveniently detachable filtering device |
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| Publication number | Publication date |
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| CN112467527A (en) | 2021-03-09 |
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Address after: 325000 leshang Pioneer Park, yueqingwan port area, Yueqing City, Wenzhou City, Zhejiang Province Applicant after: Zhejiang Changyou Electric Co.,Ltd. Address before: 325000 leshang Pioneer Park, yueqingwan port area, Yueqing City, Wenzhou City, Zhejiang Province Applicant before: ZHEJIANG CHANGYOU ELECTRIC CO.,LTD. |
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