CN110797788A - Low-voltage ring main unit with good environmental protection effect - Google Patents
Low-voltage ring main unit with good environmental protection effect Download PDFInfo
- Publication number
- CN110797788A CN110797788A CN201911107362.XA CN201911107362A CN110797788A CN 110797788 A CN110797788 A CN 110797788A CN 201911107362 A CN201911107362 A CN 201911107362A CN 110797788 A CN110797788 A CN 110797788A
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- Prior art keywords
- cabinet body
- environmental protection
- cabinet
- ring main
- main unit
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Classifications
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- 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
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- 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
-
- 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
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- 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
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Photovoltaic Devices (AREA)
Abstract
The invention discloses a low-voltage ring main unit with good environmental protection effect, and relates to the technical field of ring main units. The cabinet comprises a cabinet body and a recycling device, wherein a cabinet door is hinged to the front of the cabinet body, the recycling device is placed at the top of the cabinet body, and a component board is fixedly mounted at the bottom of an inner cavity of the cabinet body. This low-voltage ring main unit that environmental protection nature protective effect is good, through setting up the recycle device, utilize photovoltaic cell board with solar energy transformation electric energy and to the fan provide the energy, make the fan can dispel the heat to the internal portion of cabinet, utilize and collect the mouth and can collect the rainwater and flow through the inside of the cabinet body through running through the pipe, make rainwater and the abundant contact of cabinet body, further improve the radiating effect of the cabinet body, utilize the active heat dissipation of fan and the passive form heat dissipation that the rainwater was collected, and two radiating modes are retrieved sunshine and rainwater respectively, the effect of the environmental protection nature is improved when strengthening the radiating effect has been reached.
Description
Technical Field
The invention relates to the technical field of ring main units, in particular to a low-voltage ring main unit with good environmental protection effect.
Background
The ring main unit is a group of electric equipment which is arranged in a metal or nonmetal insulating cabinet body or is made into an assembled interval ring main power supply unit, and the core part of the ring main unit adopts a load switch and a fuse, so that the ring main unit has the advantages of simple structure, small volume, low price, capability of improving power supply parameters and performance, power supply safety and the like. It is widely used in distribution stations and box-type substations of load centers of urban residential districts, high-rise buildings, large public buildings, factory enterprises and the like
1. Among the prior art, the looped netowrk cabinet can produce more heat when using, and the radiating hole of the radiating mode of current solid looped netowrk cabinet adopts the louvre to carry out nature forced air cooling more, and this kind of radiating mode's radiating efficiency is relatively poor, and the looped netowrk cabinet is inside under the environment that lasts the high temperature, the condition of components and parts short circuit appears easily to the damage of components and parts leads to the fact the loss for people's economy.
2. Among the prior art, the looped netowrk cabinet can produce a large amount of noises at the during operation, and long-time work can cause certain influence to the surrounding environment to influenced resident's quality of life on every side, reduced safe looped netowrk cabinet's practicality.
Disclosure of Invention
Technical problem to be solved
Aiming at the defects of the prior art, the invention provides the low-voltage ring main unit with good environmental protection effect, so as to solve the problems in the background technology.
(II) technical scheme
In order to achieve the purpose, the invention provides the following technical scheme: a low-voltage ring main unit with good environmental protection effect comprises a main body and a recycling device, wherein a cabinet door is hinged to the front of the main body, the recycling device is arranged at the top of the main body, and a component board is fixedly arranged at the bottom of an inner cavity of the main body;
the recycling device comprises a top plate, two photovoltaic cell panels are fixedly mounted on the upper surface of the top plate, a photovoltaic controller is fixedly mounted on the inner side surface of the photovoltaic controller, a storage battery is fixedly mounted inside the top plate, a fan is fixedly mounted at the bottom of the storage battery and positioned inside a cabinet body, six collecting ports are formed in the upper surface of the top plate, collecting pipes are fixedly mounted at output ports of the collecting ports, six penetrating pipes are fixedly mounted inside the cabinet body, output ports of the collecting pipes extend to the inside of the penetrating pipes, and output ports of the penetrating pipes are positioned on the side surface of the cabinet body;
the utility model discloses a cabinet, including the cabinet body, recycle device's back fixed mounting has the pivot, recycle device's the back articulates through the pivot has the joint board, the inserting groove has been seted up at the back of the cabinet body, the one end that the pivot was kept away from to the joint board extends to the inside of inserting groove, the groove of accomodating has been seted up to the bottom of inserting groove inner wall, the bottom fixed mounting who accomodates the inslot wall has the folded piece, the top fixedly connected with peg graft rod of folded piece, the top of peg rod extends to the inner wall of inserting groove and runs through the joint board, the back fixed mounting of peg rod has the push-and-pull board, the push-and-pull board extends to the back of the cabinet.
As a preferred technical scheme of the invention, the two sides of the cabinet body are fixedly provided with the guide plates, and the inclination angles of the guide plates and the slope surface of the recycling device are positioned on the same plane.
According to a preferable technical scheme, the inner wall of the cabinet body comprises a stainless steel base layer, an ester foam sound absorption layer, a polyamide fiber sound insulation board and a centrifugal glass wool sound insulation layer, the stainless steel base layer, the ester foam sound absorption layer, the polyamide fiber sound insulation board and the centrifugal glass wool sound insulation layer are sequentially arranged from inside to outside, the areas of the stainless steel base layer, the ester foam sound absorption layer, the polyamide fiber sound insulation board and the centrifugal glass wool sound insulation layer are the same, and the penetrating pipe is located between the ester foam sound absorption layer and the polyamide fiber sound insulation board.
As a preferred technical solution of the present invention, an output end of the photovoltaic cell panel is electrically connected to an input end of the photovoltaic controller, an output end of the photovoltaic controller is electrically connected to an input end of the storage battery, and an output end of the storage battery is electrically connected to an input end of the blower.
As a preferable technical scheme of the invention, the top of the inner wall of the insertion groove is provided with a placing groove, and the top end of the insertion rod is positioned in the placing groove.
(III) advantageous effects
Compared with the prior art, the invention provides the low-voltage ring main unit with good environmental protection effect, which has the following beneficial effects:
1. this low-voltage ring main unit that environmental protection nature protective effect is good, through setting up the recycle device, utilize photovoltaic cell board with solar energy transformation electric energy and to the fan provide the energy, make the fan can dispel the heat to the internal portion of cabinet, utilize and collect the mouth and can collect the rainwater and flow through the inside of the cabinet body through running through the pipe, make rainwater and the abundant contact of cabinet body, further improve the radiating effect of the cabinet body, utilize the active heat dissipation of fan and the passive form heat dissipation that the rainwater was collected, and two radiating modes are retrieved sunshine and rainwater respectively, the effect of the environmental protection nature is improved when strengthening the radiating effect has been reached.
2. This low pressure looped netowrk cabinet that environmental protection nature protecting effect is good, through setting up ester foam sound absorbing layer, the cotton puigging of polyamide fiber acoustic celotex board and centrifugal glass, the noise that utilizes ester foam sound absorbing layer's material characteristic to produce the looped netowrk cabinet during operation is absorbed for the first time, utilize the cotton puigging of polyamide fiber acoustic celotex board and centrifugal glass to carry out secondary filtration to the noise after absorbing for the first time, the effect of noise isolation has been played, thereby further improved the environmental protection nature, the condition that current looped netowrk cabinet can produce a large amount of noises at the during operation has been avoided, thereby solved current looped netowrk cabinet and produced the problem that the noise can influence the quality of life of resident near looped netow.
Drawings
Fig. 1 is a schematic structural diagram of a low-voltage ring main unit with good environmental protection effect according to the present invention;
fig. 2 is a schematic structural diagram of a low-voltage ring main unit with good environmental protection effect according to the present invention;
fig. 3 is a front sectional view of the structure of the low-voltage ring main unit with good environmental protection effect according to the present invention;
fig. 4 is a front sectional view of a cabinet body structure of a low-voltage ring main unit with good environmental protection effect according to the present invention;
fig. 5 is a sectional side view of an accommodating groove structure of a low-voltage ring main unit with good environmental protection effect according to the present invention.
In the figure: 1. a cabinet body; 2. a cabinet door; 3. a recycling device; 301. a top plate; 4. a guide plate; 5. a photovoltaic controller; 6. a photovoltaic cell panel; 7. a storage battery; 8. a fan; 9. a collection port; 10. a collection pipe; 11. penetrating the pipe; 12. a component board; 13. a stainless steel base layer; 14. an ester foam sound absorbing layer; 15. polyamide fiber acoustical panels; 16. centrifuging the glass wool sound insulation layer; 17. a rotating shaft; 18. a clamping and connecting plate; 19. inserting grooves; 20. a receiving groove; 21. a folding member; 22. a plug rod; 23. a push-pull plate.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-5, a low-voltage ring main unit with good environmental protection effect includes a main body 1 and a recycling device 3, wherein a cabinet door 2 is hinged to the front of the main body 1, the recycling device 3 is placed at the top of the main body 1, and a component board 12 is fixedly installed at the bottom of the inner cavity of the main body 1;
the recycling device 3 comprises a top plate 301, two photovoltaic cell panels 6 are fixedly mounted on the upper surface of the top plate 301, a photovoltaic controller 5 is fixedly mounted on the inner side surface of the photovoltaic controller 5, a storage battery 7 is fixedly mounted inside the top plate 301, a fan 8 is fixedly mounted at the bottom of the storage battery 7, the fan 8 is positioned inside the cabinet body 1, six collecting ports 9 are formed in the upper surface of the top plate 301, collecting pipes 10 are fixedly mounted at the output ports of the collecting ports 9, six penetrating pipes 11 are fixedly mounted inside the cabinet body 1, the output ports of the collecting pipes 10 extend to the inside of the penetrating pipes 11, the output ports of the penetrating pipes 11 are positioned on the side surface of the cabinet body 1, the output ends of the photovoltaic cell panels 6 are electrically connected with the input end of the photovoltaic controller 5, and the output end of the photovoltaic controller 5 is electrically connected with the input end of the, the output end of the storage battery 7 is electrically connected with the input end of the fan 8, the low-voltage ring main unit with good environmental protection effect is provided with the recycling device 3, solar energy is converted into electric energy by the photovoltaic cell panel 6, and energy is provided for the fan 8, so that the fan 8 can radiate the heat inside the cabinet body 1, rainwater can be collected by the collecting port 9 and flows through the inside of the cabinet body 1 through the through pipe 11, the rainwater is enabled to be fully contacted with the cabinet body 1, the heat radiation effect of the cabinet body 1 is further improved, the active heat radiation and the passive heat radiation of water cooling conduction of the fan 8 are utilized, and the sunlight and the rainwater are respectively recycled by the two heat radiation modes, so that the effect of improving the environmental protection property while enhancing the heat radiation effect is achieved;
a rotating shaft 17 is fixedly installed on the back surface of the recycling device 3, a clamping plate 18 is hinged to the back surface of the recycling device 3 through the rotating shaft 17, an insertion groove 19 is formed in the back surface of the cabinet body 1, one end, far away from the rotating shaft 17, of the clamping plate 18 extends into the insertion groove 19, a receiving groove 20 is formed in the bottom of the inner wall of the insertion groove 19, a folding piece 21 is fixedly installed at the bottom of the inner wall of the receiving groove 20, an insertion rod 22 is fixedly connected to the top end of the folding piece 21, the top end of the insertion rod 22 extends to the inner wall of the insertion groove 19 and penetrates through the clamping plate 18, a push-pull plate 23 is fixedly installed on the back surface of the insertion rod 22, the push-pull plate 23 extends to the back surface of the cabinet body 1 through an opening in the rear side of the receiving groove 20, and when the recycling device 3 needs to be dismounted, the push-pull plate 23 is pulled, so that the insertion rod 22 is finally received in the receiving groove 20, the fixing state of the clamping plate 18 and the insertion groove 19 is released, the clamping plate 18 is rotated, the clamping plate 18 is separated from the insertion groove 19, and the part of the top of the cabinet body 1 connected with the bottom of the recycling device 3 can be detached.
As a specific technical scheme of this embodiment, the both sides of the cabinet body 1 are all fixedly mounted with the deflector 4, the inclination angle of the deflector 4 and the slope of the recycle device 3 are in the same plane.
In this embodiment, utilize deflector 4 can lead the rainwater on the recycle device 3 of flowing through to avoid the rainwater to contact with the side of the cabinet body 1, thereby avoid the rainwater can cause the damage to the components and parts of the internal portion of cabinet, thereby prolonged the life of looped netowrk cabinet.
As a specific technical solution of this embodiment, the inner wall of the cabinet body 1 includes a stainless steel base layer 13, an ester foam sound absorbing layer 14, a polyamide fiber sound insulating board 15, and a centrifugal glass wool sound insulating layer 16, the stainless steel base layer 13, the ester foam sound absorbing layer 14, the polyamide fiber sound insulating board 15, and the centrifugal glass wool sound insulating layer 16 are arranged in sequence from inside to outside, the areas of the stainless steel base layer 13, the ester foam sound absorbing layer 14, the polyamide fiber sound insulating board 15, and the centrifugal glass wool sound insulating layer 16 are the same, and the penetrating pipe 11 is located between the ester foam sound absorbing layer 14 and the polyamide fiber sound insulating board 15.
In this embodiment, through setting up ester foam sound absorbing layer 14, polyamide fiber acoustic celotex board 15 and the cotton puigging of centrifugal glass 16, the noise that utilizes ester foam sound absorbing layer 14's material characteristic to produce the looped netowrk cabinet during operation is absorbed for the first time, utilize polyamide fiber acoustic celotex board 15 and the cotton puigging of centrifugal glass 16 to carry out the secondary filtration to the noise after absorbing for the first time, the effect of noise isolation has been played, thereby further improved the feature of environmental protection, the condition that current looped netowrk cabinet can produce a large amount of noises at the during operation has been avoided, thereby the problem that current looped netowrk cabinet noise production can influence the quality of life of resident near the looped netowrk cabinet has been solved.
As a specific technical solution of this embodiment, a placing groove is formed at the top of the inner wall of the inserting groove 19, and the top end of the inserting rod 22 is located inside the placing groove.
In this embodiment, the insertion rod 22 can be placed by using the placement groove, so that the situation that the insertion rod 22 shakes is avoided.
The working principle and the using process of the invention are as follows: when the solar energy storage cabinet is used, solar energy can be converted into electric energy by the photovoltaic cell panel 6 and the electric energy is transmitted to the inside of the storage battery 7 through the photovoltaic controller 5 to be stored, the storage battery 7 can provide electric energy for the fan 8, so that the fan 8 can perform heat dissipation treatment on the inside of the cabinet body 1, rainwater can be collected by the collecting port 9, the rainwater enters the collecting port 9 and enters the inside of the through pipe 11 through the collecting pipe 10, the through pipe 11 is positioned inside the cabinet body 1, so that the rainwater is enabled to be fully contacted with the cabinet body 1, and the heat dissipation effect of the cabinet body 1 is further improved; when the recycling device 3 needs to be removed, the push-pull plate 23 is pulled to cause the folding piece 21 to contract, so that the insertion rod 22 moves downwards, the insertion rod 22 is finally accommodated in the accommodating groove 20, the fixing state of the clamping plate 18 and the insertion groove 19 is released, the clamping plate 18 is rotated, the clamping plate 18 is separated from the insertion groove 19, and the part, connected with the bottom of the recycling device 3, of the top of the cabinet body 1 can be removed.
In summary, the low-voltage ring main unit with good environmental protection effect is provided with the recycling device 3, the photovoltaic cell panel 6 is used for converting solar energy into electric energy and providing energy for the fan 8, so that the fan 8 can radiate heat inside the cabinet body 1, the collecting port 9 is used for collecting rainwater and enabling the rainwater to flow through the through pipe 11 and flow through the cabinet body 1, the rainwater is enabled to be fully contacted with the cabinet body 1, the heat radiation effect of the cabinet body 1 is further improved, the active heat radiation of the fan 8 and the passive heat radiation of water cooling conduction are used, and the two heat radiation modes are used for respectively recovering sunlight and rainwater, so that the effect of improving environmental protection property while enhancing the heat radiation effect is achieved; through setting up ester foam sound absorbing layer 14, polyamide fiber acoustic celotex board 15 and the cotton puigging of centrifugal glass 16, the noise that utilizes ester foam sound absorbing layer 14's material characteristic to produce the looped netowrk cabinet during operation carries out the primary absorption, utilize polyamide fiber acoustic celotex board 15 and the cotton puigging of centrifugal glass 16 to carry out the secondary filtration to the noise after the primary absorption, the effect of isolated noise has been played, thereby further improved the feature of environmental protection, avoided current looped netowrk cabinet can produce the condition of a large amount of noises at the during operation, thereby solved current looped netowrk cabinet noise production and can influence the problem of the resident's near looped netowrk cabinet quality of life.
It should be noted that, in this document, terms such as "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (5)
1. The utility model provides a low pressure looped netowrk cabinet that environmental protection nature protecting effect is good, includes cabinet body (1) and recycle device (3), its characterized in that: a cabinet door (2) is hinged to the front side of the cabinet body (1), a recycling device (3) is placed at the top of the cabinet body (1), and a component board (12) is fixedly installed at the bottom of an inner cavity of the cabinet body (1);
the recycling device (3) comprises a top plate (301), two photovoltaic cell panels (6) are fixedly mounted on the upper surface of the top plate (301), a photovoltaic controller (5) is fixedly mounted on the inner side surface of the photovoltaic controller (5), a storage battery (7) is fixedly mounted inside the top plate (301), a fan (8) is fixedly mounted at the bottom of the storage battery (7), the fan (8) is located inside the cabinet body (1), six collecting ports (9) are formed in the upper surface of the top plate (301), a collecting pipe (10) is fixedly mounted at an output port of each collecting port (9), six penetrating pipes (11) are fixedly mounted inside the cabinet body (1), an output port of each collecting pipe (10) extends to the inside of each penetrating pipe (11), and an output port of each penetrating pipe (11) is located on the side surface of the cabinet body (1);
a rotating shaft (17) is fixedly arranged on the back surface of the recycling device (3), a clamping plate (18) is hinged on the back surface of the recycling device (3) through the rotating shaft (17), an inserting groove (19) is formed in the back of the cabinet body (1), one end, far away from the rotating shaft (17), of the clamping and connecting plate (18) extends into the inserting groove (19), the bottom of the inner wall of the inserting groove (19) is provided with a containing groove (20), the bottom of the inner wall of the containing groove (20) is fixedly provided with a folding piece (21), the top end of the folding piece (21) is fixedly connected with an insertion rod (22), the top end of the insertion rod (22) extends to the inner wall of the insertion groove (19) and penetrates through the clamping plate (18), the back of the insertion rod (22) is fixedly provided with a push-pull plate (23), and the push-pull plate (23) extends to the back of the cabinet body (1) through an opening at the rear side of the accommodating groove (20).
2. The low-voltage ring main unit with good environmental protection effect according to claim 1, is characterized in that: the both sides of the cabinet body (1) are all fixedly mounted with guide plates (4), and the inclination angle of the guide plates (4) and the slope of the recycling device (3) are on the same plane.
3. The low-voltage ring main unit with good environmental protection effect according to claim 1, is characterized in that: the cabinet body (1) inner wall is including stainless steel basic unit (13), ester foam noise-absorbing layer (14), polyamide fiber acoustic celotex board (15) and the cotton puigging of centrifugal glass (16), and stainless steel basic unit (13), ester foam noise-absorbing layer (14), polyamide fiber acoustic celotex board (15) and the range order of the cotton puigging of centrifugal glass (16) are from inside to outside setting gradually, and the area of stainless steel basic unit (13), ester foam noise-absorbing layer (14), polyamide fiber acoustic celotex board (15) and centrifugal glass cotton acoustic celotex board (16) is the same, it is located between ester foam noise-absorbing layer (14) and polyamide fiber acoustic celotex board (15) to run through pipe (11).
4. The low-voltage ring main unit with good environmental protection effect according to claim 3, is characterized in that: the output of photovoltaic cell board (6) is connected with the input electricity of photovoltaic controller (5), the output of photovoltaic controller (5) is connected with the input electricity of battery (7), the output of battery (7) is connected with the input electricity of fan (8).
5. The low-voltage ring main unit with good environmental protection effect according to claim 1, is characterized in that: the top of the inner wall of the insertion groove (19) is provided with a placing groove, and the top end of the insertion rod (22) is positioned in the placing groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911107362.XA CN110797788A (en) | 2019-11-13 | 2019-11-13 | Low-voltage ring main unit with good environmental protection effect |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911107362.XA CN110797788A (en) | 2019-11-13 | 2019-11-13 | Low-voltage ring main unit with good environmental protection effect |
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| Publication Number | Publication Date |
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| CN110797788A true CN110797788A (en) | 2020-02-14 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911107362.XA Pending CN110797788A (en) | 2019-11-13 | 2019-11-13 | Low-voltage ring main unit with good environmental protection effect |
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| CN (1) | CN110797788A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112332232A (en) * | 2020-11-10 | 2021-02-05 | 安徽长龙电气集团有限公司 | Box-type substation |
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| CN206774944U (en) * | 2017-04-24 | 2017-12-19 | 陈爱军 | A kind of dustproof heat-dissipation electrical cabinet |
| CN207505310U (en) * | 2017-11-23 | 2018-06-15 | 信连江 | A kind of inner mounting structure of electric box |
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Application publication date: 20200214 |