CN212210034U - Novel distribution network automation terminal - Google Patents

Novel distribution network automation terminal Download PDF

Info

Publication number
CN212210034U
CN212210034U CN202021100178.0U CN202021100178U CN212210034U CN 212210034 U CN212210034 U CN 212210034U CN 202021100178 U CN202021100178 U CN 202021100178U CN 212210034 U CN212210034 U CN 212210034U
Authority
CN
China
Prior art keywords
box
air
power distribution
distribution network
cavity
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.)
Active
Application number
CN202021100178.0U
Other languages
Chinese (zh)
Inventor
张兆云
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Dongguan University of Technology
Original Assignee
Dongguan University of Technology
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Dongguan University of Technology filed Critical Dongguan University of Technology
Priority to CN202021100178.0U priority Critical patent/CN212210034U/en
Application granted granted Critical
Publication of CN212210034U publication Critical patent/CN212210034U/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Landscapes

  • Drying Of Solid Materials (AREA)

Abstract

The utility model provides a novel distribution network automation terminal. The novel distribution network automatic terminal comprises a box body; the power distribution cavity is formed in the box body; the processing cavity is formed in the box body and is positioned below the power distribution cavity; the exhaust holes are respectively formed in the inner walls of the two sides of the power distribution cavity; the air inlets are respectively formed in the inner walls of the two sides of the processing cavity; the two air guide covers are fixedly arranged on the inner walls of the two sides of the treatment cavity respectively and are matched with the plurality of air inlet holes respectively. The utility model provides a novel distribution network automation terminal has that the radiating effect is better, can dehumidify the cooling air, and can produce centrifugal force through the rotation mode and make the rainwater be difficult to get into to inside advantage.

Description

Novel distribution network automation terminal
Technical Field
The utility model relates to a power equipment technical field especially relates to a novel distribution network automation terminal.
Background
With the rapid development of the power and computer industries, how to better improve the reliability and flexibility of a power grid system and enhance the capabilities of fault analysis and processing, communication, event recording and the like of a power grid intelligent switch becomes a focus of more and more power grid users. The distribution network automation telemechanical terminal cabinet is produced by the company, and the product can be widely applied to the field and the place of multi-loop synchronous measurement and control of urban distribution networks, rural distribution networks and the like. The distribution network automatic telecontrol terminal cabinet is matched with switch units such as a ring main unit and an opening and closing station, and can realize the control of opening, closing, distance and short range, locking and unlocking; the acquisition and calculation of position signals, voltage, current, active power, reactive power, power factors, electric energy and other data of the switch equipment are completed, and the fault identification and isolation of the feeder switch and the recovery power supply of a non-fault section are realized; possess 1 ~ 16 return circuits simultaneously and observe and control, can gather and upload operation and fault information such as multiloop line voltage, line current, zero sequence current, equipment state, possess the communication interface and the multiple standard communication protocol of multiple mode, can be real-timely with the data upload main website of gathering to realize automation and the intelligence of looped netowrk cabinet, switching station, box-type substation telemechanical observation and control.
Distribution network automation terminal is mostly highly integrated power equipment, a large amount of heats that electronic component during operation produced, these electronic component install at a relative sealed cabinet internally simultaneously, lead to self working life's shortening easily, especially in some south areas or when rainy season, steam in the air enters into the cabinet body easily, cause secondary damage to the electronic component of inside, and at present most switch board top does not set up the rain cover, even be equipped with also mostly fixedly, fixed rain cover is because rain is usually inclined down when keeping off the rain, these rainwater get into to the cabinet internal along the gas pocket of both sides easily.
Therefore, there is a need to provide a new distribution network automation terminal to solve the above technical problems.
SUMMERY OF THE UTILITY MODEL
The utility model provides a technical problem provide a radiating effect better, can dehumidify the cooling air, and can produce centrifugal force through the rotation mode and make the rainwater be difficult to get into to inside novel distribution network automation terminal.
For solving the technical problem, the utility model provides a novel distribution network automation terminal includes: a box body; the power distribution cavity is formed in the box body; the processing cavity is formed in the box body and is positioned below the power distribution cavity; the exhaust holes are respectively formed in the inner walls of the two sides of the power distribution cavity; the air inlets are respectively formed in the inner walls of the two sides of the processing cavity; the two air guide covers are fixedly arranged on the inner walls of the two sides of the treatment cavity respectively and are matched with the plurality of air inlet holes respectively; the two dehumidification boxes are fixedly arranged on the inner wall of the top and the inner wall of the bottom of the treatment cavity and are positioned between the two air guide hoods; and the drainage filtering structure is arranged on the box body.
Preferably, the drainage filtering structure comprises two first guide pipes, a second guide pipe, a drainage fan, an air inlet pipe, an air distribution pipe, an exhaust pipe and two filtering structures, the two first guide pipes are respectively and fixedly arranged at one side where the two guide hoods and the two dehumidifying boxes are close to each other, the second guide pipe is fixedly arranged at one side where the two dehumidifying boxes are close to each other, the drainage fan is fixedly arranged on the inner wall of the top of the processing cavity, the drainage fan is positioned above the second guide pipe, the air inlet pipe is fixedly arranged at the air inlet end of the drainage fan, the air inlet end of the air inlet pipe is fixedly connected with the top of the second guide pipe, the air distribution pipe is fixedly arranged on the inner walls of the two sides of the power distribution cavity, the exhaust pipe is fixedly arranged at the air outlet end of the drainage fan, the air outlet end of the exhaust pipe extends into the power distribution cavity and is fixedly connected with the bottom of the air distribution pipe, the two filtering structures are respectively arranged on the two dehumidifying boxes.
Preferably, the filtering structure comprises an operation opening, a net cage and a sealing plate, the operation opening is formed in one side, close to the second guide pipe, of the dehumidifying box, the net cage is arranged in the dehumidifying box, the net cage is in contact with the inner wall of the dehumidifying box, the sealing plate is mounted on one side, close to the second guide pipe, of the dehumidifying box through a flange, one side, far away from the second guide pipe, of the sealing plate extends into the dehumidifying box and is fixedly connected with the net cage, and the sealing plate is matched with the operation opening.
Preferably, an embedded groove is formed in the inner wall of one side, away from the operation opening, of the dehumidification box, a sealing ring is arranged in the embedded groove, one side of the sealing ring extends into the dehumidification box and is fixedly connected with the net cage, and the top of the net cage is provided with an opening.
Preferably, the inner wall of the dehumidifying box is fixedly provided with a first separation net, the first separation net is positioned below the net cage, the top of the first separation net is fixedly provided with a plurality of fixing strips, the tops of the fixing strips are movably embedded with first balls, and the tops of the first balls are in contact with the bottom of the net cage.
Preferably, a second separation net is fixedly installed on the inner wall of the power distribution cavity and is located above the air distribution pipe.
Preferably, the box is provided with a centrifugal rain-shielding mechanism, the centrifugal rain-shielding mechanism comprises a protective shell, a rotating shaft, a speed reducing motor, a rain-shielding cover, a guide ring, a ring groove and two guide rods, the protective shell is fixedly arranged at the top of the box body, the rotating shaft is rotatably arranged on the inner wall of the top of the protective shell, the top end of the rotating shaft extends into the protective shell, the top end of the rotating shaft extends out of the protective shell, the speed reducing motor is fixedly arranged at the top of the box body, the speed reducing motor is positioned in the protective shell, the output shaft of the speed reducing motor is fixedly connected with the bottom end of the rotating shaft, the rain-shielding cover is fixedly arranged at the top end of the rotating shaft, the guide ring is fixedly arranged at the top of the box body, the guide ring is positioned outside the protective shell, the ring groove is arranged at the top of the guide ring, the bottom ends of the two guide rods extend into the ring grooves.
Preferably, two the equal movable mosaic of bottom of guide arm has the second ball, the rolling groove has been seted up on the bottom inner wall of annular, two the bottom of second ball all extends to in the rolling groove, the top fixed mounting of rain shade has a plurality of separation blades, and is a plurality of the separation blade is circular array distribution.
Compared with the prior art, the utility model provides a novel distribution network automation terminal has following beneficial effect:
the utility model provides a novel distribution network automation terminal, outside air gets into to two dehumidification incasement dehumidifications when this device passes through drainage fan's drainage effect, and the air after the dehumidification finishes is discharged to the distribution intracavity by the cloth tuber pipe, cools off the electrical components who installs in the distribution intracavity, the result of use preferred.
Drawings
Fig. 1 is a schematic front view of a cross-sectional structure of a first embodiment of a novel distribution network automation terminal provided by the present invention;
FIG. 2 is an enlarged schematic view of portion A shown in FIG. 1;
FIG. 3 is a schematic diagram of a side view mechanism of the dome of the present invention;
fig. 4 is a schematic front view of a cross-sectional structure of a second embodiment of the novel distribution network automation terminal provided by the present invention;
FIG. 5 is an enlarged schematic view of a portion B shown in FIG. 4;
fig. 6 is a schematic view of the top view structure of the rain shield of the present invention.
Reference numbers in the figures: 1. a box body; 2. a power distribution cavity; 3. a treatment chamber; 4. an exhaust hole; 5. an air inlet; 6. a pod; 7. a dehumidification box; 8. a first conduit; 9. a second conduit; 10. a drainage fan; 11. an air inlet pipe; 12. distributing an air pipe; 13. an exhaust pipe; 14. an operation port; 15. a net cage; 16. a sealing plate; 17. a protective shell; 18. a rotating shaft; 19. a reduction motor; 20. a rain shield; 21. a guide ring; 22. a ring groove; 23. a guide rod.
Detailed Description
The present invention will be further described with reference to the accompanying drawings and embodiments.
The first embodiment:
please refer to fig. 1-3 in combination. Novel distribution network automation terminal includes: a box body 1; the power distribution cavity 2 is formed in the box body 1; the treatment cavity 3 is formed in the box body 1, and the treatment cavity 3 is located below the power distribution cavity 2; the exhaust holes 4 are respectively formed in the inner walls of the two sides of the power distribution cavity 2; the air inlets 5 are respectively formed in the inner walls of the two sides of the processing cavity 3; the two air guide hoods 6 are respectively and fixedly installed on the inner walls of the two sides of the treatment cavity 3, and the two air guide hoods 6 are respectively matched with the plurality of air inlet holes 5; the two dehumidification boxes 7 are fixedly arranged on the inner walls of the top and the bottom of the treatment cavity 3, and the two dehumidification boxes 7 are positioned between the two air guide hoods 6; and the drainage filtering structure is arranged on the box body 1.
The drainage filtering structure comprises two first guide pipes 8, a second guide pipe 9, a drainage fan 10, an air inlet pipe 11, an air distribution pipe 12, an exhaust pipe 13 and two filtering structures, wherein the two first guide pipes 8 are respectively and fixedly arranged at one side where the two guide hoods 6 and the two dehumidifying boxes 7 are close to each other, the second guide pipe 9 is fixedly arranged at one side where the two dehumidifying boxes 7 are close to each other, the drainage fan 10 is fixedly arranged on the inner wall of the top of the treatment cavity 3, the drainage fan 10 is positioned above the second guide pipe 9, the air inlet pipe 11 is fixedly arranged on the air inlet end of the drainage fan 10, the air inlet end of the air inlet pipe 11 is fixedly connected with the top of the second guide pipe 9, the air distribution pipe 12 is fixedly arranged on the inner walls of the two sides of the power distribution cavity 2, and the exhaust pipe 13 is fixedly arranged on the air outlet end of the drainage fan 10, the air outlet end of the exhaust pipe 13 extends into the power distribution cavity 2 and is fixedly connected with the bottom of the air distribution pipe 12, and the two filtering structures are respectively arranged on the two dehumidification boxes 7.
The filtering structure comprises an operation opening 14, a net box 15 and a sealing plate 16, wherein the operation opening 14 is formed in one side, close to the second guide pipe 9, of the dehumidifying box 7, the net box 15 is arranged in the dehumidifying box 7, the net box 15 is in contact with the inner wall of the dehumidifying box 7, the sealing plate 16 is mounted on one side, close to the second guide pipe 9, of the dehumidifying box 7 in a flange mode, one side, far away from the second guide pipe 9, of the sealing plate 16 extends into the dehumidifying box 7 and is fixedly connected with the net box 15, and the sealing plate 16 is matched with the operation opening 14.
An embedded groove is formed in the inner wall of one side, away from the operation opening 14, of the dehumidifying box 7, a sealing ring is arranged in the embedded groove, one side of the sealing ring extends into the dehumidifying box 7 and is fixedly connected with the net cage 15, and the top of the net cage 15 is provided with an opening.
The dehumidification box is characterized in that a first separation net is fixedly mounted on the inner wall of the dehumidification box 7 and located below the net box 15, a plurality of fixing strips are fixedly mounted at the top of the first separation net and are movably inlaid at the tops of the fixing strips, and first balls are arranged at the tops of the first balls and are in contact with the bottom of the net box 15.
And a second separation net is fixedly arranged on the inner wall of the power distribution cavity 2 and is positioned above the air distribution pipe 12.
In this embodiment:
before use, firstly, the bolts on the two sealing plates 16 are removed, the sealing plates 16 are separated from the operation opening 14, the net cage 15 slides out of the dehumidification box 7 on the tops of the first balls and slides out of the caulking groove, sufficient drying agent can be put into the net cage 15 at the moment, and then the net cage 15 is reset again;
during the use, start drainage fan 10, the air enters into kuppe 6 through a plurality of inlet ports 5 by the outside when drainage fan 10 starts, later get into to dehumidification case 7 in through first pipe 8, carry out the drier in the net case 15 in the dehumidification case 7 and carry out after adsorbing the moisture by second pipe 9 and arrange into to the intake pipe 11 in by drainage fan 10 and discharge into blast pipe 13 in, later blow through arranging wind pipe 12 and air exhaust in to distribution cavity 2, wind after the use is discharged to box 1 through a plurality of exhaust holes 4 and is accomplished the heat dissipation work outward.
Compared with the prior art, the utility model provides a novel distribution network automation terminal has following beneficial effect:
the utility model provides a novel distribution network automation terminal, outside air gets into to two dehumidification incasement 7 dehumidifications when this device passes through drainage fan 10's drainage effect, and the air after the dehumidification finishes is discharged to distribution chamber 2 in by cloth tuber pipe 12, cools off the electrical components who installs in distribution chamber 2, the result of use preferred.
Second embodiment:
based on the novel distribution network automation terminal that the first embodiment of this application provided, the second embodiment of this application provides another kind of novel distribution network automation terminal. The second embodiment is merely a preferred way of the first embodiment, and the implementation of the second embodiment does not affect the implementation of the first embodiment alone.
The second embodiment of the present invention will be further explained with reference to the drawings and the embodiments.
Referring to fig. 4-6, the novel distribution network automation terminal further includes a centrifugal rain-shielding mechanism, the centrifugal rain-shielding mechanism is disposed on the box 1, the centrifugal rain-shielding mechanism includes a protective shell 17, a rotating shaft 18, a speed-reducing motor 19, a rain-shielding cover 20, a guide ring 21, a ring groove 22 and two guide rods 23, the protective shell 17 is fixedly mounted on the top of the box 1, the rotating shaft 18 is rotatably mounted on the inner wall of the top of the protective shell 17, the top end of the rotating shaft 18 extends into the protective shell 17, the top end of the rotating shaft 18 extends out of the protective shell 17, the speed-reducing motor 19 is fixedly mounted on the top of the box 1, the speed-reducing motor 19 is located in the protective shell 17, the output shaft of the speed-reducing motor 19 is fixedly connected with the bottom end of the rotating shaft 18, the rain-shielding cover 20 is fixedly mounted on the, guide ring 21 fixed mounting be in the top of box 1, guide ring 21 is located outside protective housing 17, annular 22 sets up guide ring 21's top, two the equal fixed mounting of guide arm 23 is in the bottom of rain shade 20, two the bottom of guide arm 23 all extends to in the annular 22.
Two the equal activity of bottom of guide arm 23 is inlayed and is had the second ball, the rolling groove has been seted up on the bottom inner wall of annular 22, two the bottom of second ball all extends to in the rolling groove, the top fixed mounting of rain shade 20 has a plurality of separation blades, and is a plurality of the separation blade is circular array and distributes.
In this embodiment:
start gear motor 19 when using, gear motor 19's output shaft drives pivot 18 when rotating and rotates, and pivot 18 drives rain shield 20 when rotating and rotates, and rain shield 20 drives two guide arms 23 and rotates along annular 22 on the guide ring 21, and the rainwater is stirred through a plurality of separation blades in top by pivoted rain shield 20 when raining, gets rid of box 1 under centrifugal effect, through the mode of keeping away from, reduces the invasion of steam, has changed the direct form that is drenched by rain of tradition.
Compared with the prior art, the utility model provides a novel distribution network automation terminal has following beneficial effect:
the utility model provides a novel distribution network automation terminal, this device make the rainwater get rid of box 1 through centrifugal mode, have reduced because the rainwater drenches on box 1 and makes the condition that a large amount of steam got into to one side.
It should be noted that the device structure and the accompanying drawings of the present invention mainly describe the principle of the present invention, and in the technology of this design principle, the settings of the power mechanism, the power supply system, the control system, etc. of the device are not completely described, and the details of the power mechanism, the power supply system, and the control system can be clearly known on the premise that those skilled in the art understand the principle of the present invention.
The above only is the embodiment of the present invention, not limiting the scope of the present invention, all the equivalent structures or equivalent processes of the present invention are used in the specification and the attached drawings, or directly or indirectly applied to other related technical fields, and the same principle is included in the protection scope of the present invention.

Claims (8)

1. A novel distribution network automation terminal, its characterized in that includes:
a box body;
the power distribution cavity is formed in the box body;
the processing cavity is formed in the box body and is positioned below the power distribution cavity;
the exhaust holes are respectively formed in the inner walls of the two sides of the power distribution cavity;
the air inlets are respectively formed in the inner walls of the two sides of the processing cavity;
the two air guide covers are fixedly arranged on the inner walls of the two sides of the treatment cavity respectively and are matched with the plurality of air inlet holes respectively;
the two dehumidification boxes are fixedly arranged on the inner wall of the top and the inner wall of the bottom of the treatment cavity and are positioned between the two air guide hoods;
and the drainage filtering structure is arranged on the box body.
2. The novel power distribution network automation terminal as set forth in claim 1, wherein the drainage filtering structure comprises two first conduits, a second conduit, a drainage fan, an air inlet pipe, an air distribution pipe, an exhaust pipe and two filtering structures, the two first conduits are respectively and fixedly mounted on the two air guide hoods and the two dehumidifying boxes at the side close to each other, the second conduit is fixedly mounted on the side close to each other of the two dehumidifying boxes, the drainage fan is fixedly mounted on the inner wall of the top of the processing chamber, the drainage fan is positioned above the second conduit, the air inlet pipe is fixedly mounted on the air inlet end of the drainage fan, the air inlet end of the air inlet pipe is fixedly connected with the top of the second conduit, the air distribution pipe is fixedly mounted on the inner walls of the two sides of the power distribution chamber, the exhaust pipe is fixedly mounted on the air outlet end of the drainage fan, the air outlet end of the exhaust pipe extends into the power distribution cavity and is fixedly connected with the bottom of the air distribution pipe, and the two filtering structures are respectively arranged on the two dehumidification boxes.
3. The new power distribution network automation terminal as set forth in claim 2, wherein the filtering structure comprises an operation opening, a net cage and a sealing plate, the operation opening is provided at a side of the dehumidifying box close to the second conduit, the net cage is provided in the dehumidifying box, the net cage is in contact with an inner wall of the dehumidifying box, the sealing plate is flange-mounted at a side of the dehumidifying box close to the second conduit, a side of the sealing plate away from the second conduit extends into the dehumidifying box and is fixedly connected with the net cage, and the sealing plate is adapted to the operation opening.
4. The novel power distribution network automation terminal as set forth in claim 3, wherein an inner wall of the dehumidification box at a side away from the operation opening is provided with an embedded groove, a sealing ring is disposed in the embedded groove, one side of the sealing ring extends into the dehumidification box and is fixedly connected with the net cage, and a top of the net cage is an opening.
5. The novel distribution network automation terminal as set forth in claim 3, wherein a first screen is fixedly installed on the inner wall of the dehumidification box, the first screen is located below the net cage, a plurality of fixing strips are fixedly installed on the top of the first screen, a plurality of first balls are movably embedded on the top of the fixing strips, and the top of the first balls is in contact with the bottom of the net cage.
6. The new power distribution network automation terminal of claim 2, wherein a second screen is fixedly mounted on the inner wall of the power distribution cavity, and the second screen is located above the air distribution pipe.
7. The novel power distribution network automation terminal as set forth in claim 1, wherein the box is provided with a centrifugal rain-shielding mechanism, the centrifugal rain-shielding mechanism comprises a protective shell, a rotating shaft, a speed-reducing motor, a rain-shielding cover, a guide ring, a ring groove and two guide rods, the protective shell is fixedly mounted on the top of the box, the rotating shaft is rotatably mounted on the inner wall of the top of the protective shell, the top end of the rotating shaft extends into the protective shell, the top end of the rotating shaft extends out of the protective shell, the speed-reducing motor is fixedly mounted on the top of the box, the speed-reducing motor is located in the protective shell, the output shaft of the speed-reducing motor is fixedly connected with the bottom end of the rotating shaft, the rain-shielding cover is fixedly mounted on the top end of the rotating shaft, the guide ring is fixedly mounted on the top of the, the annular is seted up the top of guide ring, two the equal fixed mounting of guide arm is in the bottom of rain shade, two the bottom of guide arm all extends to in the annular.
8. The novel distribution network automation terminal of claim 7, wherein the bottom ends of the two guide rods are movably embedded with second balls, the inner wall of the bottom of the ring groove is provided with a rolling groove, the bottoms of the two second balls extend into the rolling groove, and the top of the rain shield is fixedly provided with a plurality of blocking pieces which are distributed in a circular array.
CN202021100178.0U 2020-06-15 2020-06-15 Novel distribution network automation terminal Active CN212210034U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202021100178.0U CN212210034U (en) 2020-06-15 2020-06-15 Novel distribution network automation terminal

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202021100178.0U CN212210034U (en) 2020-06-15 2020-06-15 Novel distribution network automation terminal

Publications (1)

Publication Number Publication Date
CN212210034U true CN212210034U (en) 2020-12-22

Family

ID=73808622

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202021100178.0U Active CN212210034U (en) 2020-06-15 2020-06-15 Novel distribution network automation terminal

Country Status (1)

Country Link
CN (1) CN212210034U (en)

Similar Documents

Publication Publication Date Title
CN209282615U (en) A kind of outdoor electrical switchgear with Rainproof moisture-proof structure
CN210074573U (en) Outdoor dampproofing block terminal of using
CN207303668U (en) A kind of electrical engineering distribution box
CN211017816U (en) Rainproof switch cabinet
CN112510500A (en) Outdoor power distribution cabinet for factory electrical control system
CN212210034U (en) Novel distribution network automation terminal
CN208904409U (en) A kind of switching station convenient for draining
CN116207628A (en) Smart power grids monitoring management equipment
CN113966121B (en) Outdoor protection equipment of laying of router
CN207475022U (en) A kind of energy-saving and environment-friendly small open circuit integrated switch cabinet
CN211880067U (en) Outdoor stainless steel low pressure photovoltaic cable branch box
CN208623173U (en) A kind of maintenance power box with external power supply access protective device
CN210985245U (en) Plc self-control power distribution cabinet with strong heat radiation structure
CN218586652U (en) Protection device and low-voltage switch cabinet
CN215528254U (en) Insulating medium-voltage switch cabinet capable of preventing dust and static accumulation
CN216648902U (en) Operation and maintenance protection device based on high-low voltage switch cabinet
CN211457286U (en) Low-power consumption wireless acquisition transmission base station with good waterproof function
CN220042625U (en) Dampproofing dehumidification system of outdoor terminal box
CN216672955U (en) Radiating photovoltaic conflux case of lightning protection
CN113161876B (en) High-low voltage switch cabinet with waterproof and dustproof functions
CN220570153U (en) Block terminal convenient to safety control
CN219226912U (en) Dampproof device for switch cabinet
CN214543131U (en) Protection device for DC combiner box for photovoltaic power generation
CN202262160U (en) Electrical cabinet provided with drying system
CN216489303U (en) Power distribution cabinet with heat dissipation function

Legal Events

Date Code Title Description
GR01 Patent grant
GR01 Patent grant